June 23 news for the recent media briefing on the Ministry of Public Security to provide quick cash to pay for the gambling Web site reports 17 million profit, quick money, sent a statement to Sohu IT clarification. Quick money that the report referred to in staff is not quick money quick money the senior management. Adding that the cooperation agreement signed with the operators belong to formal business areas, business has taken a malicious concealment means, under the cover of the formal business, engage in illegal transactions. After the discovery of suspicious questions, with the public security departments to freeze the funds and accounts of the business, take practical action to actively cooperate with the police detection work, and the police and the relevant regulatory approval.
Quick money that it has taken a series of corrective measures, conduct self-examination and in-house staff training, and strengthening the business processing and investigation measures.
The following is text of the statement:
Note the recent media reports on
1, for some media reports that employees of fast money, need to be clarified is that the employee is notLCD a quick senior management.
2, in this case, quick money and business co-operation signed between the areas are part of the formal business. But the business has taken to conceal malicious means, under the guise of formal business, engaging in illegal transactions, a serious breach of a bilateral cooperation treaty. Quick money in suspicious questions, the first time with the public security departments to freeze the funds and accounts of the business, take practical action to actively cooperate with the police in solving, by the police and the relevant regulatory approval.
3, At the same time, we have carefully analyzed the incident and adopted a series of corrective measures, in-house self-inspection and staff training in the new environment to further enhance staff awareness of risk control. In addition, we strengthened the business in a timely manner for approval and survey measures to ensure that a mechanism to stop this kind of business firm engaged in illegal use of the possibility of quick money.
4 Indeed, the rapid development of the industry will face a variety of problems and challenges. We believe that with the introduction of central bank management practices, will cover the interim period of major companies exposed Jurisprudence, credit card cash, money laundering and gambling incidences such acts play an active supervisory role. The introduction of measures to further promote the industry's product and service innovation, leading the electronic payment industry to a sustained and healthy development of a comprehensive e-commerce for the enterprise and integrated international competitiveness, contribute to the improvement.
5 Recently, some competitors in the industry malicious and exaggerated negative news quick money, we think that this whole electronic payment industry's development. From the perspective of business development, professional payment solutions and market position will
VGA Monitor
be different for the whole community to bring more e-commerce payment and settlement choices, the market needs is quality service and business innovation. Meanwhile, the electronic payment toward compliance-oriented process, the greater need for the industry team up to industry bigger and stronger, rather than each other strife.
Six, quick money, since the formal inception in 2005, has always been to secure compliance as a prerequisite for all operational work. The future, we will continue to respond positively to the central bank's policy and call management approach based on the requirements,PC monitor do their business in compliance work. We applied for the "pay business permit" full of confidence.
Quick Inc.
June 23, 2010
বুধবার, ২৩ জুন, ২০১০
China 4762 to give the least developed countries zero-tariff treatment of goods
Learned from the Ministry of Finance's 23, the State Council Tariff Commission decided that from July 1, the exchange of letters that have been completed with China in Ethiopia 33 least developed countries, the 4762 tariff lines of origin of goods exported to China zero tariff, about accounted for 60% of all tariff items. At this point, China will become the least developed countries open their markets to the extent of one of the largest developing country.
According to the Ministry of Finance introduced the integration of the original zero-tariff treatment, based on the 4762 list of zero-tariff goods tariff lines to further increase the least developed countries in recent years, actual or potential export capacity of some export commodities, including poultry and livestock , aquatic products, raw or processed agricultural products early, minerals, herbs, daily necessities, plastic products, leather, wood, textiles, apparel products, glass, steel and their products, machinery and electronic products, furniture and so on. In accordance with the 2008 trade statistics, the 4762 tariff lines of zero-tariff goods exports to China accounted for the least developed countries of 98.2%.
The future, China will in accordance with relevant national advice and recommendations, combined with effective implementation of existing measures continue to benefit To widen the scope of the eventual realization of zero tariff to cover all the tax benefits of 95% of taxable items.
The Ministry of Finance, with the full implementation of zero tariff measures, many of the least developed countries duty-free goods will enter the Chinese market, the people of the least developed countries will bring benefits, but also will help reduce the cost of imports of Chinese Enterprises to broaden our channels of imports and promote the healthy development of bilateral trade to further strengthen the least developed countries, China and the friendly relations and mutually beneficial cooperation.
Since 2001, China gradually to 41 least developed countries zero-tariff treatment to some commodities, giving the range of goods expanded. Up to now, China has given to the least developed countries were about 1,000 tariff lines duty-free treatment of goods, covering most of
TFT LCD Monitor
these countries exports to China of goods. The implementation of zero tariff measures also contributed to these countries exports to China. Data show that in 2008, China absorbed the least developed countries 23% of total exports, as the least developed countries, the largest export market.
Currently, the World Trade Organization Doha Round impasse, developed countries pledged 97% of the least developed countries products and a "duty-free, quota-free" obligation not yet been fully realized. Fenxi have pointed out, China as a developing country, experiencing severe Kaoyan global financial crisis, still faces an extremely complex challenge Jingjixingshi the occasion, the lead in implementing the least developed countries committed to the implementation of zero tariff and honor their UN Millennium XuanMonitors Yan, reflecting China to maintain the multilateral trading system open, fair and just determination and help the LDCs to improve their level of economic development in good faith
According to the Ministry of Finance introduced the integration of the original zero-tariff treatment, based on the 4762 list of zero-tariff goods tariff lines to further increase the least developed countries in recent years, actual or potential export capacity of some export commodities, including poultry and livestock , aquatic products, raw or processed agricultural products early, minerals, herbs, daily necessities, plastic products, leather, wood, textiles, apparel products, glass, steel and their products, machinery and electronic products, furniture and so on. In accordance with the 2008 trade statistics, the 4762 tariff lines of zero-tariff goods exports to China accounted for the least developed countries of 98.2%.
The future, China will in accordance with relevant national advice and recommendations, combined with effective implementation of existing measures continue to benefit To widen the scope of the eventual realization of zero tariff to cover all the tax benefits of 95% of taxable items.
The Ministry of Finance, with the full implementation of zero tariff measures, many of the least developed countries duty-free goods will enter the Chinese market, the people of the least developed countries will bring benefits, but also will help reduce the cost of imports of Chinese Enterprises to broaden our channels of imports and promote the healthy development of bilateral trade to further strengthen the least developed countries, China and the friendly relations and mutually beneficial cooperation.
Since 2001, China gradually to 41 least developed countries zero-tariff treatment to some commodities, giving the range of goods expanded. Up to now, China has given to the least developed countries were about 1,000 tariff lines duty-free treatment of goods, covering most of
TFT LCD Monitor
these countries exports to China of goods. The implementation of zero tariff measures also contributed to these countries exports to China. Data show that in 2008, China absorbed the least developed countries 23% of total exports, as the least developed countries, the largest export market.
Currently, the World Trade Organization Doha Round impasse, developed countries pledged 97% of the least developed countries products and a "duty-free, quota-free" obligation not yet been fully realized. Fenxi have pointed out, China as a developing country, experiencing severe Kaoyan global financial crisis, still faces an extremely complex challenge Jingjixingshi the occasion, the lead in implementing the least developed countries committed to the implementation of zero tariff and honor their UN Millennium XuanMonitors Yan, reflecting China to maintain the multilateral trading system open, fair and just determination and help the LDCs to improve their level of economic development in good faith
Article 27 of the Shenyang Military Region vulgar exchanges air brake ban offenders criticized
Shenyang Military Region depth politics and civilized, ethical, say frugal, green exchanges about the law, drawn up 27 ban, firmly put the vulgar style of communication. Their approach is very timely and very necessary to meet the aspirations of the officers and men. Hu advocated vigorously carry forward the good atmosphere of four aspects, we need such as the Shenyang Military Region, and realistically, and moving true, establish a strong new force winds righteousness, both grass-roots level, more grasping organs and leading cadres of setting an example. As long as unremittingly, can unite the party and army formed a powerful force.
News Record
PRC in the past, frequently received "a fine red one", is that many rank and file of the bothering; now Shenyang Military officers and men no longer have this thing trouble troubled. June 10 morning, a brigade of the Shenyang Military Region, told reporters Zhang Ganshi pleased:
10.4 Inch TFT LCD Monitor
LCD Monitor
"Military Region 27 issued the ban after red invitations everywhere, busy with social activities such as eat and drink unhealthy for themselves."
Not long ago, the leadership of the Shenyang Military Region army investigation found that at the grassroots level: officers and men to contact utilitarian, practical, vulgarization and other issues become increasingly prominent. Increasing not only the scope of exchanges, more and more items, but "only on the exchanges," "interest-only contacts" and are quite prominent, so that pure friendship between comrades been changed. According to statistics of a brigade, grassroots cadres and the expenditure year for human contact as much as 2000 to 6000 yuan as much as non-commissioned officers are between 800 to 4000 yuan.
"Communication of attached units atmosphere, about unity and harmony, cohesion of combat units directly affected." Shenyang Military Region leaders at a meeting to stress. Shenyang Military Region Political Department of the Shenyang Military Commission for Discipline Inspection of soliciting men opinions and suggestions, based on on May 31 jointly issued a "military forces to carry out green contacts certain provisions" from the behavior control, happy matters, festivals, public affairs, 6 aspects such as supervision and punishment provisions of the 27 ban, aimed at further correction of the vulgar style of communication, promote healthy and civilized interaction behavior.
"Prohibited personnel invitedLCD Monitors to participate in the internal force birthday birthday, birth of a child, child studies, move on behalf of new home and other family matters festive activities organized by ... ..." reporter read "require" to see, which strictly regulate both the activities during the festival called "iron law ", but also control the liberal" magic spell "27 ban roads clear entry key and clear.
In order to ensure that the 27 ban carried out, they opened hotlines, set up in the online column, while the green contacts, leading cadres at all levels to take the lead against the vulgar exchanges, and to harden the wrist more than 20 violations against the officers and men were criticized .
Exchanges such as the green ray of spring, blowing green barracks, blowing up people. Shenyang military region generally indicated depth politics and civilized, ethical, say frugal, green exchanges about the law, arrested in the right direction, grasp the atmosphere, inspired the people, some difficult issues, difficult things solved .
Today, health, pure and civilized exchange of green military region in the formation of the new style is. The image of some officers and men said: "Work is the best gift was the most hard background. So it be done, who do not have to look for; if so that we, whom are white look."
Related Links
27 Excerpts ban
Article 1: make arrangements for weddings and funerals, must report to the organization in advance the time, place, scale. Above the regimental level officers to the ranks of party report and the next higher level discipline inspection commission for the record; other cadres where the party organizations through the report to the Commission for Discipline Inspection of the unit; officers report to the host branch. Held for the officers and men to promote the collective wedding.
Article 7: Prohibition of the internal forces personnel invited to participate in birthday to birthday, birth of a child, child studies, move on behalf of new home and other family affairs activities and celebrations organized by accepting gifts gifts.
Article 8: Prohibition of the internal forces personnel invited to participate in advanced studies, job promotions, job changes, and other personal honor meritorious service reward for the festive activities and accepting gifts gifts.
ARTICLE 10: Prohibition of the opportunity to take holiday gift giving gifts, leading cadres are not allowed to name an individual or unit with the ceremony of gift giving. Promote holiday gathering, telephone and SMS greetings.
Article 11: Prohibition of use of the machine, I get sick relatives, subordinates or subordinate unit personnel received beyond the scope of the normal etiquette of gift gifts; against subordinates or subordinate unit personnel took the opportunity to achieve personal goals to send gifts to gifts; advocate on behalf of the unit to organize sympathy .
Article 12: 10.4 Inch Touch Screen LCD PanelProhibition to force officers and men to accept family banquets and gifts gifts.
Article 16: prohibition of personal use of public funds to entertain each other, and strictly control between the lower and comrades, please eat, please.
News Record
PRC in the past, frequently received "a fine red one", is that many rank and file of the bothering; now Shenyang Military officers and men no longer have this thing trouble troubled. June 10 morning, a brigade of the Shenyang Military Region, told reporters Zhang Ganshi pleased:
10.4 Inch TFT LCD Monitor
LCD Monitor
"Military Region 27 issued the ban after red invitations everywhere, busy with social activities such as eat and drink unhealthy for themselves."
Not long ago, the leadership of the Shenyang Military Region army investigation found that at the grassroots level: officers and men to contact utilitarian, practical, vulgarization and other issues become increasingly prominent. Increasing not only the scope of exchanges, more and more items, but "only on the exchanges," "interest-only contacts" and are quite prominent, so that pure friendship between comrades been changed. According to statistics of a brigade, grassroots cadres and the expenditure year for human contact as much as 2000 to 6000 yuan as much as non-commissioned officers are between 800 to 4000 yuan.
"Communication of attached units atmosphere, about unity and harmony, cohesion of combat units directly affected." Shenyang Military Region leaders at a meeting to stress. Shenyang Military Region Political Department of the Shenyang Military Commission for Discipline Inspection of soliciting men opinions and suggestions, based on on May 31 jointly issued a "military forces to carry out green contacts certain provisions" from the behavior control, happy matters, festivals, public affairs, 6 aspects such as supervision and punishment provisions of the 27 ban, aimed at further correction of the vulgar style of communication, promote healthy and civilized interaction behavior.
"Prohibited personnel invitedLCD Monitors to participate in the internal force birthday birthday, birth of a child, child studies, move on behalf of new home and other family matters festive activities organized by ... ..." reporter read "require" to see, which strictly regulate both the activities during the festival called "iron law ", but also control the liberal" magic spell "27 ban roads clear entry key and clear.
In order to ensure that the 27 ban carried out, they opened hotlines, set up in the online column, while the green contacts, leading cadres at all levels to take the lead against the vulgar exchanges, and to harden the wrist more than 20 violations against the officers and men were criticized .
Exchanges such as the green ray of spring, blowing green barracks, blowing up people. Shenyang military region generally indicated depth politics and civilized, ethical, say frugal, green exchanges about the law, arrested in the right direction, grasp the atmosphere, inspired the people, some difficult issues, difficult things solved .
Today, health, pure and civilized exchange of green military region in the formation of the new style is. The image of some officers and men said: "Work is the best gift was the most hard background. So it be done, who do not have to look for; if so that we, whom are white look."
Related Links
27 Excerpts ban
Article 1: make arrangements for weddings and funerals, must report to the organization in advance the time, place, scale. Above the regimental level officers to the ranks of party report and the next higher level discipline inspection commission for the record; other cadres where the party organizations through the report to the Commission for Discipline Inspection of the unit; officers report to the host branch. Held for the officers and men to promote the collective wedding.
Article 7: Prohibition of the internal forces personnel invited to participate in birthday to birthday, birth of a child, child studies, move on behalf of new home and other family affairs activities and celebrations organized by accepting gifts gifts.
Article 8: Prohibition of the internal forces personnel invited to participate in advanced studies, job promotions, job changes, and other personal honor meritorious service reward for the festive activities and accepting gifts gifts.
ARTICLE 10: Prohibition of the opportunity to take holiday gift giving gifts, leading cadres are not allowed to name an individual or unit with the ceremony of gift giving. Promote holiday gathering, telephone and SMS greetings.
Article 11: Prohibition of use of the machine, I get sick relatives, subordinates or subordinate unit personnel received beyond the scope of the normal etiquette of gift gifts; against subordinates or subordinate unit personnel took the opportunity to achieve personal goals to send gifts to gifts; advocate on behalf of the unit to organize sympathy .
Article 12: 10.4 Inch Touch Screen LCD PanelProhibition to force officers and men to accept family banquets and gifts gifts.
Article 16: prohibition of personal use of public funds to entertain each other, and strictly control between the lower and comrades, please eat, please.
Defense Ministry spokesman quietly "coaching change"
Yesterday, the Ministry
10.4 Inch VGA Monitorof National Defense Foreign Affairs Office as military attaches at the "situation in China's participation in international arms control affairs," briefing, according to reports, "introduced by the Ministry of National Defense Information Office of the Secretary Geng Yansheng colonel over."
At the same time, the reporter learned that the Department of Defense, Deputy Secretary for Information Services as the Yang Yujun. By convention, the Secretary for Defense Information
10.4 Inch LCD Touch Screen Monitor
Services Agency will also act as deputy press spokesman.
This means that the first two of the Ministry of Defence spokesman Hu Changming and Huang Xueping pioneering situation after the completion of a smooth shift, and another appointment.
Public reports show: Geng Yansheng had consolidated the Department of Defense Office of the Deputy Secretary for Foreign Affairs, Yang Yujun staff for the Board. Has toured many countries, participated in several major Chinese and foreign joint military exercises.
According to understanding, the new spokesman for the low-key post, did not publicly release information. A spokesman for the beginning of the new office had already called on relevant departments to carry out the communication with the counterparts.
In a market previously held the Ministry of Defence press conference, two new spokesman to the site to feel the spot.
"More open, transparent, to strengthen military exchanges with relevant countries," Information Office of the Department of Defense to establish the original intention. In several previous occasions, Geng Yansheng also made similar statements, necessarily believe that this tradition will continue, to do better.
Reporter impression
Hu Changming: smile, "forever"
Department of Defense's10.4 Inch LCD Touch Screen Monitors recall in 2008 on the issue of Chinese warships off the Somali coast to escort the first conference held in the Ministry of National Defense Foreign Affairs Office.
The day before the two appeared at a press spokesman also great affinity. Hu Changming not on the podium that day, he joked, his image is not good enough so let Yin.
Hu Changming in the face of a reporter, always smiling, in an interview on-site, a reporter taking it every space on the chase Hu Changming, Hu Changming always cheerful expression, 10.4 Inch Touch Screen LCD Monitorhe's playing with the "Tai Chi."
Then he smiled and told me: "She (referring to the press after him) insisted interview, can say I would say, can not say definitely can not say."
Huang Xueping: care conference "effect"
Press conference held in Yushu, after the earthquake, Huang Xueping particularly concerned about the effect of how the conference, he asked the reporter was not interested, the answer is not satisfied with the military's propaganda is not able to play the best results.
One time, a bit English media write English text, please Huang Xueping help look. Huang Xueping his use of certain sentence recommendations, subsequently, the reporter amazed.
Background Links
The end of 2007, Defense Department official said the State Information Office spokesperson system will be built.
May 2008 the Ministry of Defence spokesman Hu Changming first foreign appearance.
Defense Information Services such as the establishment of the sixtieth anniversary of National Day and many other major events organized and held many news conferences,10.4 Inch TFT LCD Touch Screen Monitor and in a timely manner to the Chinese and foreign media information on national defense and army building.
10.4 Inch VGA Monitorof National Defense Foreign Affairs Office as military attaches at the "situation in China's participation in international arms control affairs," briefing, according to reports, "introduced by the Ministry of National Defense Information Office of the Secretary Geng Yansheng colonel over."
At the same time, the reporter learned that the Department of Defense, Deputy Secretary for Information Services as the Yang Yujun. By convention, the Secretary for Defense Information
10.4 Inch LCD Touch Screen Monitor
Services Agency will also act as deputy press spokesman.
This means that the first two of the Ministry of Defence spokesman Hu Changming and Huang Xueping pioneering situation after the completion of a smooth shift, and another appointment.
Public reports show: Geng Yansheng had consolidated the Department of Defense Office of the Deputy Secretary for Foreign Affairs, Yang Yujun staff for the Board. Has toured many countries, participated in several major Chinese and foreign joint military exercises.
According to understanding, the new spokesman for the low-key post, did not publicly release information. A spokesman for the beginning of the new office had already called on relevant departments to carry out the communication with the counterparts.
In a market previously held the Ministry of Defence press conference, two new spokesman to the site to feel the spot.
"More open, transparent, to strengthen military exchanges with relevant countries," Information Office of the Department of Defense to establish the original intention. In several previous occasions, Geng Yansheng also made similar statements, necessarily believe that this tradition will continue, to do better.
Reporter impression
Hu Changming: smile, "forever"
Department of Defense's10.4 Inch LCD Touch Screen Monitors recall in 2008 on the issue of Chinese warships off the Somali coast to escort the first conference held in the Ministry of National Defense Foreign Affairs Office.
The day before the two appeared at a press spokesman also great affinity. Hu Changming not on the podium that day, he joked, his image is not good enough so let Yin.
Hu Changming in the face of a reporter, always smiling, in an interview on-site, a reporter taking it every space on the chase Hu Changming, Hu Changming always cheerful expression, 10.4 Inch Touch Screen LCD Monitorhe's playing with the "Tai Chi."
Then he smiled and told me: "She (referring to the press after him) insisted interview, can say I would say, can not say definitely can not say."
Huang Xueping: care conference "effect"
Press conference held in Yushu, after the earthquake, Huang Xueping particularly concerned about the effect of how the conference, he asked the reporter was not interested, the answer is not satisfied with the military's propaganda is not able to play the best results.
One time, a bit English media write English text, please Huang Xueping help look. Huang Xueping his use of certain sentence recommendations, subsequently, the reporter amazed.
Background Links
The end of 2007, Defense Department official said the State Information Office spokesperson system will be built.
May 2008 the Ministry of Defence spokesman Hu Changming first foreign appearance.
Defense Information Services such as the establishment of the sixtieth anniversary of National Day and many other major events organized and held many news conferences,10.4 Inch TFT LCD Touch Screen Monitor and in a timely manner to the Chinese and foreign media information on national defense and army building.
শুক্রবার, ১১ জুন, ২০১০
LED display function is how
I. What is LED?
In some semiconductor materials, PN junction, the injection of minority carrier and majority carrier recombination extra time to time to the form of light energy released, which convert light energy directly into electrical energy. PN junction reverse voltage, minority,8 inch Monitor carrier injection is difficult, it is not light. This use of principle of injection electroluminescence diodes called LEDs produced, known as LED.
LED luminous color and light-emitting efficiency and production of LED materials and processes related to the widely used red, green, and blue. As the LED voltage is low (only 1.5-3V), can take the initiative to have a certain luminescence and brightness, Brightness and voltage (or current) regulation, which itself has impact-resistant, anti-vibration, long life (100,000 hours), so in large display device, the display is currently no other way match with LED display.
The red and green LED together produced as a pixel color display screen or a color screen name; the red, green, and blue LED tube put together as a three-color pixel of the display screen or call Full color. Production of indoor LED screen pixel size is generally 2-10 mm, often used to produce several different color of the LED die into one package, outdoor LED screen pixel size mostly 12-26 mm, each pixel by a number of various color LED, the finished tube, said pixel, two-color pixel 3 red tube generally composed of two green, three-color pixel 2 red 1 green tube with a blue component.
Whether using LED production monochrome, color or tri-color screen pixels to display images need to form the luminance of each LED must be able to adjust the fine adjustment of the degree is the gray scale. The higher the gray level, the more exquisite display of images, color and the more abundant, and the corresponding display control system is also more complex. General 256 gray scale images, color transition has been very soft, while the 16-level grayscale color image, color transition boundaries clear.8 inch Panel Therefore, the current color LED screen all requests made of 256 gray scale.
2, LED brightness control method:
There are two methods of controlling LED brightness. One is to change the current flowing through the LED, LED tube to allow the general current of 20 mA continuous work around, in addition to the red LED with saturation, the other LED brightness is basically proportional to the current flowing through; Another way is to use human visual inertia with a pulse width modulation method to achieve gray scale control, which is cyclical changes in pulse width (ie duty cycle), as long as the repeated cycle of light short enough (ie the refresh rate high enough), who eye is not feel the trembling of light-emitting pixels. As the pulse width modulation is more suitable for digital control, so in general the use of computer to provide the LED display today, almost all of the LED screen is used to control the pulse width modulated gray levels.
LED control system is usually the master box, scan control unit board and was composed of three parts. Main control box from the computer's graphics card to get a colored screen pixel luminance data, then re-allocated to a number of block scanning plate, each scan control board LED screen for a number of rows (columns), and each row (column) on the LED control signal is an outstanding way to use serial transmission. There are two serial transmission mode display control signals: one is the centralized control panel scan pixel grayscale, scan board will come from the control box of each line of pixel brightness value decomposition (ie, pulse width modulation), then the opening of the line LED signals in pulses (light 1, light = 0) transmitted by serial line to the corresponding LED on the control whether they light up. This use of the device small, but the serial transmission of data volume, because in a repeating cycle of light, each pixel gray level in the 16 required under 16 pulses required under the 256 gray 256 pulses, as the device operating frequency limit, the general can only do 16-level grayscale LED screen.
Another method is to scan the contents of the plate serial transmission is not a signal for each LED in the switch but the brightness of an 8-bit binary value. Each LED has its own pulse width modulator to control the light time. Thus, in a repeating cycle of light
8 inch LCD Monitors
each pixel in 16 gray scales are required, four pulses, 256 only eight pulses under the gray, greatly reduce the serial transmission frequency. LED intensity with this method of decentralized control can be easily controlled with 256 gray scales.
· LED display function is how to achieve
* On the application of environmental and quality LED What are the requirements?
· LED display general specification
* The basic structure of graphics display
* The basic structure of the video LED display
· LED display screen performance comparison with other
* Indoor LED electronic display main technical parameters
In some semiconductor materials, PN junction, the injection of minority carrier and majority carrier recombination extra time to time to the form of light energy released, which convert light energy directly into electrical energy. PN junction reverse voltage, minority,8 inch Monitor carrier injection is difficult, it is not light. This use of principle of injection electroluminescence diodes called LEDs produced, known as LED.
LED luminous color and light-emitting efficiency and production of LED materials and processes related to the widely used red, green, and blue. As the LED voltage is low (only 1.5-3V), can take the initiative to have a certain luminescence and brightness, Brightness and voltage (or current) regulation, which itself has impact-resistant, anti-vibration, long life (100,000 hours), so in large display device, the display is currently no other way match with LED display.
The red and green LED together produced as a pixel color display screen or a color screen name; the red, green, and blue LED tube put together as a three-color pixel of the display screen or call Full color. Production of indoor LED screen pixel size is generally 2-10 mm, often used to produce several different color of the LED die into one package, outdoor LED screen pixel size mostly 12-26 mm, each pixel by a number of various color LED, the finished tube, said pixel, two-color pixel 3 red tube generally composed of two green, three-color pixel 2 red 1 green tube with a blue component.
Whether using LED production monochrome, color or tri-color screen pixels to display images need to form the luminance of each LED must be able to adjust the fine adjustment of the degree is the gray scale. The higher the gray level, the more exquisite display of images, color and the more abundant, and the corresponding display control system is also more complex. General 256 gray scale images, color transition has been very soft, while the 16-level grayscale color image, color transition boundaries clear.8 inch Panel Therefore, the current color LED screen all requests made of 256 gray scale.
2, LED brightness control method:
There are two methods of controlling LED brightness. One is to change the current flowing through the LED, LED tube to allow the general current of 20 mA continuous work around, in addition to the red LED with saturation, the other LED brightness is basically proportional to the current flowing through; Another way is to use human visual inertia with a pulse width modulation method to achieve gray scale control, which is cyclical changes in pulse width (ie duty cycle), as long as the repeated cycle of light short enough (ie the refresh rate high enough), who eye is not feel the trembling of light-emitting pixels. As the pulse width modulation is more suitable for digital control, so in general the use of computer to provide the LED display today, almost all of the LED screen is used to control the pulse width modulated gray levels.
LED control system is usually the master box, scan control unit board and was composed of three parts. Main control box from the computer's graphics card to get a colored screen pixel luminance data, then re-allocated to a number of block scanning plate, each scan control board LED screen for a number of rows (columns), and each row (column) on the LED control signal is an outstanding way to use serial transmission. There are two serial transmission mode display control signals: one is the centralized control panel scan pixel grayscale, scan board will come from the control box of each line of pixel brightness value decomposition (ie, pulse width modulation), then the opening of the line LED signals in pulses (light 1, light = 0) transmitted by serial line to the corresponding LED on the control whether they light up. This use of the device small, but the serial transmission of data volume, because in a repeating cycle of light, each pixel gray level in the 16 required under 16 pulses required under the 256 gray 256 pulses, as the device operating frequency limit, the general can only do 16-level grayscale LED screen.
Another method is to scan the contents of the plate serial transmission is not a signal for each LED in the switch but the brightness of an 8-bit binary value. Each LED has its own pulse width modulator to control the light time. Thus, in a repeating cycle of light
8 inch LCD Monitors
each pixel in 16 gray scales are required, four pulses, 256 only eight pulses under the gray, greatly reduce the serial transmission frequency. LED intensity with this method of decentralized control can be easily controlled with 256 gray scales.
· LED display function is how to achieve
* On the application of environmental and quality LED What are the requirements?
· LED display general specification
* The basic structure of graphics display
* The basic structure of the video LED display
· LED display screen performance comparison with other
* Indoor LED electronic display main technical parameters
The basic structure of the video LED display
Video LED display is usually the main controller, scan board, display control unit and the LED display body composition, as shown. Master controller for a graphics card from the computer screen colors 8 inch LCD Panel each pixel luminance data, then a number of blocks allocated to the scan plate, each scanning LED display control board is responsible for a number of rows (columns), and each row (column) on the LED display with a serial signal is adopted in all our shows cascade transmission control unit, each display control unit body directly facing the LED display.
The work done by the main
10.4 inch LCD Monitor
controller is to the computer display is equipped with card signals into LED display the required data and control signal format.
Display Control and the role of transport, and image display similar to the situation, generally with a gray-level control functions constitute a shift register latch. LED display is the size of the video more often, so you should use a larger-scale integrated circuit, such as my company's chips.
The role of scanning Wrench is the so-called nexus, on the one hand it accepts the main controller of the video signal, the other belonging to the class data to its various display control unit, but also the data does not belong to the class down pull a cascade of transmission scan. Video signal and the LED display data in space, time, sequence differences in other areas, should have a scan board to coordinate.
LED display screen performance comparison with other
LED light-emitting devices in the luminous intensity, color, response speed, power consumption, reliability,8 inch TFT Monitor
longevity and resistance to adverse environment, with comprehensive advantages, making it the main instrument of public information release.
Ordinary LED luminous intensity luminous intensity luminous light around 10mcd (cents Candela), high brightness LED light, etc. for the 10-100mcd, high brightness LED light lights luminous intensity over the 100mcd. General LED LED lights for indoor applications, such as ultra-high brightness LED light can be used outdoors.
Color LED light-emitting devices by using different semiconductor materials, may issue a different wavelength of light, that is, different colors of light. LED devices are more common red, orange, yellow, green and other colors. Have recently developed and produced high brightness blue LED devices, thus promoting the three primary colors based on RGB full-color LED display and rapid realization of wide application. This is the most recent period of rapid rise in full color one of the key factors.
Response speed response frequency of LED devices and into a small number of the life of the carrier, its response frequency is about 16-160MHz, so the response of high frequency 6.5MHz for the display of the video signal is already enough. It is the realization of video LED display one of the key factors.
LED light lamp power consumption of ordinary working current of only 10mA, high brightness LED devices, but also the operating current 100mA, with its operating voltage of only 2V or so, so the power consumption minimal.
Reliability, longevity and resistance to adverse environmental performance is solid as LED devices, significantly higher than the reliability of electronic vacuum devices such as CRT is much higher and there is no limit, such as cathode-aging and life issues. Vibration properties of impact of solid devices is also much higher than other display device.
LED and CRT, filter incandescent lamp, optical fiber, piracy and other displays of performance comparison, the following table:
Project LED CRT filter pirated optical fiber incandescent
Slow response speed in the slow-fast
Strong resistance to harsh environments in the bell in the strong
High reliability,8 inch LCD flat Panel Monitor low Low Medium High
Long life in the short-long-long
High High Low High brightness
Light weight of the light
Large power consumption of large size
High in the low-cost high
Axial Angle greatly greatly
The work done by the main
10.4 inch LCD Monitor
controller is to the computer display is equipped with card signals into LED display the required data and control signal format.
Display Control and the role of transport, and image display similar to the situation, generally with a gray-level control functions constitute a shift register latch. LED display is the size of the video more often, so you should use a larger-scale integrated circuit, such as my company's chips.
The role of scanning Wrench is the so-called nexus, on the one hand it accepts the main controller of the video signal, the other belonging to the class data to its various display control unit, but also the data does not belong to the class down pull a cascade of transmission scan. Video signal and the LED display data in space, time, sequence differences in other areas, should have a scan board to coordinate.
LED display screen performance comparison with other
LED light-emitting devices in the luminous intensity, color, response speed, power consumption, reliability,8 inch TFT Monitor
longevity and resistance to adverse environment, with comprehensive advantages, making it the main instrument of public information release.
Ordinary LED luminous intensity luminous intensity luminous light around 10mcd (cents Candela), high brightness LED light, etc. for the 10-100mcd, high brightness LED light lights luminous intensity over the 100mcd. General LED LED lights for indoor applications, such as ultra-high brightness LED light can be used outdoors.
Color LED light-emitting devices by using different semiconductor materials, may issue a different wavelength of light, that is, different colors of light. LED devices are more common red, orange, yellow, green and other colors. Have recently developed and produced high brightness blue LED devices, thus promoting the three primary colors based on RGB full-color LED display and rapid realization of wide application. This is the most recent period of rapid rise in full color one of the key factors.
Response speed response frequency of LED devices and into a small number of the life of the carrier, its response frequency is about 16-160MHz, so the response of high frequency 6.5MHz for the display of the video signal is already enough. It is the realization of video LED display one of the key factors.
LED light lamp power consumption of ordinary working current of only 10mA, high brightness LED devices, but also the operating current 100mA, with its operating voltage of only 2V or so, so the power consumption minimal.
Reliability, longevity and resistance to adverse environmental performance is solid as LED devices, significantly higher than the reliability of electronic vacuum devices such as CRT is much higher and there is no limit, such as cathode-aging and life issues. Vibration properties of impact of solid devices is also much higher than other display device.
LED and CRT, filter incandescent lamp, optical fiber, piracy and other displays of performance comparison, the following table:
Project LED CRT filter pirated optical fiber incandescent
Slow response speed in the slow-fast
Strong resistance to harsh environments in the bell in the strong
High reliability,8 inch LCD flat Panel Monitor low Low Medium High
Long life in the short-long-long
High High Low High brightness
Light weight of the light
Large power consumption of large size
High in the low-cost high
Axial Angle greatly greatly
Production of LED display-related information?
Taught you how to assemble LED display section of the article above for the level of electrical technicians, including electronic professional college graduates to read. Since the tutorial invo10.4 inch Monitorslves strong electricity, please pay attention to safety. Directory
1. LED strip screen overview
2. Shall screen applications:
2.1. Advertisement Application --- New Media, new effects, new business
2.2. System Integration - Development of 2
3. Assembly significance
3.1. Screen composition
3.1.1. Unit board
3.1.2. Power
3.1.3. Control Card
3.1.4. On 16PIN 08 Interface
3.1.5. Connection
3.2. Parts production
3.2.1. Cable (data cable) Production
3.2.2. Power cord production
3.2.3. RS232 line production
3.3. Cabling Guide
4. Software Help-LED-UPDATE
4.1. Easy to use step
4.2. LED-UPDATE Details
4.2.1. Set the screen parameters
4.2.2. Batch save the information to the screen, automatic cycle show
4.2.3. Delete information
4.2.4. Send independent information
4.2.5. The list of save and open
4.3. Software descriptions and pictures of the replacement
5. Frame Production
5.1. Scaffolds
5.2. Simple box production process
5.3. Stainless steel frame production process
5.4. Aluminum frame
6. Troubleshooting
6.1. No display
6.2. Show confusion
6.3. Can not update the screen data
7. Tools and Accessories
Taught you assembly of LED screens article
1. LED strip screen overview
LED screen, as new media, sports luminous illustrations, more easily attract the attention of large amount of information kept up to date, has a very good effect of advertising and notices. More simple than the Neon LED screen, easy to install and use the results change more, you can always update the content, is a very good indoor and outdoor made visual media. LED screens are high-tech electronic products, the price is relatively high, previously concentrated in the government and the units used. Technological advances continue to lower prices, assembly and maintenance easier. Small LED screen section, because they are inexpensive to install and simple to use, long been accepted by the public, and gradually into the size of the store, application is more popular, and gradually began to spread.
2. Shall screen applications:
2.1. Advertisement Application --- New Media, new effects, new business
LED screen as the new media section is new type of decorative materials, interior decoration can be embedded in many of them to make decorations more dynamic, constantly updated subtitles, as the new boards, promotional offers and promotional information. Greatly enhance the interior of the grade, with good visual effects. As the LED section of the screen to install and use some of the technical content, limiting the advertising industry. Master LED technology, the technology can increase the interior content, expand their business.
2.2. System Integration - Development of 2
Article LED screen, as simple control, embedded in various types of equipment for the general public. Font large, dynamic and informative, for remote viewing, time broadcast news to the public, to attract public attention. Widely applied to the queuing system, reporting station system, drinking fountains and so on. LED strip screen controller, functionality is simple and stable, can be easily embedded into the system inside, eliminating the need for developers to develop LED display of the tedious work, will focus more on system functionality and innovation. LED strip screen control card development kits, provide detailed examples of the development, system integration for you and 2 provide a good environment for development.
_ 3. Assembly significance
LED industry chain has been perfect, all the accessories can easily buy online, LED technical parameters of the increasingly unified, industry-standard shape, all parts have been modular. To lay the foundation for self-assembly of LED screens. LED strip screen, due to lower material costs, the retail price is high, when the bulk procurement of the LED screen supplier, when good control of costs and prices. The end user is not familiar with the LED screen, requires suppliers to provide installation and maintenance services, so self-assembled LED screen in the local sales, with the maximum profit.
For example: assembling a 128x16 points, single red LED indoor screen, by connecting the PC serial port update the contents of the screen
3.1. Screen composition
Shall let you know what LED screen composition, cell board, power supply, control card, connection
10.4 inch TFT LCD Monitor
Cell plate back
Unit front panel
_
Switching power supply and LED strip screen control card
(Parts per sample picture) 3.1.1. Unit board
LED display unit board is one of the core components of the unit board are directly affected by the display effect. Cell plate from the LED module, driver IC and PCB board composition. LED module, in fact, lots of LED light from the point up with a resin or plastic package lattice.
Driver IC is mainly 74HC595 74HC245/244 74HC138 4953.
Common indoor unit board shall screen size are:
Parameters: D = 3.75; Pitch 4.75mm 64-point wide-x16 point high, 1 / 16 sweep indoor light. Single red / red and green color
Parameter explanation:
LED diameter: refers to the diameter of light-emitting points D = 3.75mm
Light point distance of 4.75mm ---- according to the distance between the viewer choice, indoors usually selected 4.75
Unit Board Size: 64x16 --- the most common cell plate, the most readily available, the cheapest price.
1 / 16 scan: unit board of control.
Indoor Brightness: LED light points that the brightness, the brightness for indoor fluorescent lighting during the day needs to depend on the environment.
Color: One red, the most common and cheapest prices. Generally refers to red-green color, high price.
If you want to point a 128x16 screen, just use two units cascaded together can be a plate.
_ 3.1.2. Power
General using the power switch, 220V input, 5V DC output. Be noted that the LED display screen is as sophisticated electronic equipment, so using switching power supply, can not use transformers. For a single unit red indoor 64x16 board, all dark, current of 2A.
Reasoning out, 128x16 bright color screen all the time, current is 8A. Should choose 5V10A the switching power supply.
3.1.3. Control Card
We recommend using a low-cost screen control card section, you can control the 1 / 16 sweep of 256x16 points of the two-color screen, you can assemble the most cost-competitive LED screen. The control card is an asynchronous card, that is, the card can power save information, does not need to connect PC can display the information stored in it.
For more information, please refer to the user manual of the control card. http://www.smsled.com/
When the procurement unit board, ask the parameters clearly, 100% compatible with the unit board are:
08 points from the 64-point interfaces 4.75mm wide x16 high point, 1 / 16 sweep indoor light. Single red / red and green color
08 points from the 64-point interfaces 7.62mm wide x16 high point, 1 / 16 sweep indoor light. Single red / red and green color
08 points from the 64-point interfaces 7.62mm wide x16 high point, 1 / 16 semi-outdoor sweep brightness. Single red / red and green color
_
The controller interfaces with 16PIN 08 3.1.4. On 16PIN 08 Interface
As the cell plate and control the number of card manufacturers, so many cell board style interface, LED screen in the assembly, he must first determine the consistency of the interface only to facilitate assembly. Introduced here only the most commonly used LED Interface: LED Industry Code: 16PIN 08 Interface: he interface the following order:
2ABCDG1G2STBCLK161NNNENR1R2NN15 explained:
ABCD for the row selection signal,10.4 inch PC monitor STB (LT) as the latch signal, CLK (CK) as the clock signal, R1, R2, G1, G2 to display data, EN enable for the show, N for the ground (GND). Recognition unit control card interface board and the same, you can directly connected. And if not, will need to produce their own conversion line (to change the line order)
3.1.5. Connection
Divided into data lines, transmission lines, and power lines. Data cable for connecting control card and the LED board cable unit, transmission line for connecting control card and computer. Power cord is used to connect power and control card, power supply and LED module board. Connect the power unit board not less than the diameter copper wire of 1mm (mm)
3.2. Parts production
3.2.1. Cable (data cable) Production
Cable and data lines inside the computer chassis similar, but somewhat different line width. The city can buy in computer-related materials. Production of cables, need a tool that is of special pliers (picture), can greatly enhance the efficiency and yield. The materials produced cable: cable, thread scheduling, cable cap. Here we note that, if you make 16PIN (16 lines) emission lines, need to buy 16PIN the line and the corresponding row of the size of thread and cap. Production step, the thread cut with scissors flat, then put the first row of thread, (note line and head balance), and then into the central pressure of pliers, hard pressed, then wound over, installed cable cap. Cable hat is important, can effectively protect the cable, so cable is more sturdy, not provincial.
_
(Pliers photo cable accessories) 3.2.2. Power cord production
Power into 220V power cord and 5V power line. 220V power cable for connecting to the mains power switch, preferably a 3-pin plug, you can buy at the hardware store. Described here focuses on 5V DC power cord, because the current 5V larger, preferably more than 1mm in diameter, copper red and black on the line (be sure to red and black). Able to do so, it is best to line the two metal pieces fitted
_
(Figure) 3.2.3. RS232 line production
RS232 cable for connecting computers and control card, update the screen data. It should be used first and the DB9 cable (you can buy Computer City). Carefully observe the DB9 head, above a digital, connected to 5 brown, brown white of 3 connections. The cable clamp, mounted Fortunately DB9 head. (This is important, we must clamp, pull their own a few and see if a pull on the break). Then with a multimeter measuring about 2, if conduction. It should be pointed out, DB9 male head and female sub-head. Home computer is behind the seat, so buy a plug corresponding to the public. If you do not understand, please carefully look at your PC. Are generally not the serial port laptop, buy a USB-RS232 serial line
_
(DB9 accessories picture) 3.3. Cabling Guide
First installed, please strictly follow the steps to operate, reduce error.
Step 1: Check the power supply voltage, to identify positive and negative DC link power supply, the 220V power cord connected to the switching power supply, (the connection is correct, the terminal connected to the AC or NL) and then connecting the power. Will find the power supply has a lantern light, and then with a multimeter, DC range measuring about between V + and V-voltage, to ensure the voltage is between 4.8V-5.1V, next to a knob, you can adjust what voltage Phillips screwdriver. To reduce the heat to extend the life of the screen, in the brightness of less demanding situations, you can adjust the voltage to between 4.5V-4.8. Sure voltage is not the problem, disconnect the power, continue to assemble other parts.
Step 2: first power-down. Connect the red wire to V +, V-Connect the black wire, are connected to the control card and the LED module board, black line access control cards and power supply GND. Red line connection control card and cell board +5 V VCC. Each cell board a power cord. 10.4 inch LCD Monitors Upon completion, please check connections.
Power connection diagram Step 3: Connect the control and unit board, with the good of the flat cable, to connect. Note that the direction can not be reversed. Please note that unit interface board 2 16PIN, 1 is the input, and 1 output, close to the 74HC245/244 is input, the control card connected to the input. Output to connect to the next unit of input board
1. LED strip screen overview
2. Shall screen applications:
2.1. Advertisement Application --- New Media, new effects, new business
2.2. System Integration - Development of 2
3. Assembly significance
3.1. Screen composition
3.1.1. Unit board
3.1.2. Power
3.1.3. Control Card
3.1.4. On 16PIN 08 Interface
3.1.5. Connection
3.2. Parts production
3.2.1. Cable (data cable) Production
3.2.2. Power cord production
3.2.3. RS232 line production
3.3. Cabling Guide
4. Software Help-LED-UPDATE
4.1. Easy to use step
4.2. LED-UPDATE Details
4.2.1. Set the screen parameters
4.2.2. Batch save the information to the screen, automatic cycle show
4.2.3. Delete information
4.2.4. Send independent information
4.2.5. The list of save and open
4.3. Software descriptions and pictures of the replacement
5. Frame Production
5.1. Scaffolds
5.2. Simple box production process
5.3. Stainless steel frame production process
5.4. Aluminum frame
6. Troubleshooting
6.1. No display
6.2. Show confusion
6.3. Can not update the screen data
7. Tools and Accessories
Taught you assembly of LED screens article
1. LED strip screen overview
LED screen, as new media, sports luminous illustrations, more easily attract the attention of large amount of information kept up to date, has a very good effect of advertising and notices. More simple than the Neon LED screen, easy to install and use the results change more, you can always update the content, is a very good indoor and outdoor made visual media. LED screens are high-tech electronic products, the price is relatively high, previously concentrated in the government and the units used. Technological advances continue to lower prices, assembly and maintenance easier. Small LED screen section, because they are inexpensive to install and simple to use, long been accepted by the public, and gradually into the size of the store, application is more popular, and gradually began to spread.
2. Shall screen applications:
2.1. Advertisement Application --- New Media, new effects, new business
LED screen as the new media section is new type of decorative materials, interior decoration can be embedded in many of them to make decorations more dynamic, constantly updated subtitles, as the new boards, promotional offers and promotional information. Greatly enhance the interior of the grade, with good visual effects. As the LED section of the screen to install and use some of the technical content, limiting the advertising industry. Master LED technology, the technology can increase the interior content, expand their business.
2.2. System Integration - Development of 2
Article LED screen, as simple control, embedded in various types of equipment for the general public. Font large, dynamic and informative, for remote viewing, time broadcast news to the public, to attract public attention. Widely applied to the queuing system, reporting station system, drinking fountains and so on. LED strip screen controller, functionality is simple and stable, can be easily embedded into the system inside, eliminating the need for developers to develop LED display of the tedious work, will focus more on system functionality and innovation. LED strip screen control card development kits, provide detailed examples of the development, system integration for you and 2 provide a good environment for development.
_ 3. Assembly significance
LED industry chain has been perfect, all the accessories can easily buy online, LED technical parameters of the increasingly unified, industry-standard shape, all parts have been modular. To lay the foundation for self-assembly of LED screens. LED strip screen, due to lower material costs, the retail price is high, when the bulk procurement of the LED screen supplier, when good control of costs and prices. The end user is not familiar with the LED screen, requires suppliers to provide installation and maintenance services, so self-assembled LED screen in the local sales, with the maximum profit.
For example: assembling a 128x16 points, single red LED indoor screen, by connecting the PC serial port update the contents of the screen
3.1. Screen composition
Shall let you know what LED screen composition, cell board, power supply, control card, connection
10.4 inch TFT LCD Monitor
Cell plate back
Unit front panel
_
Switching power supply and LED strip screen control card
(Parts per sample picture) 3.1.1. Unit board
LED display unit board is one of the core components of the unit board are directly affected by the display effect. Cell plate from the LED module, driver IC and PCB board composition. LED module, in fact, lots of LED light from the point up with a resin or plastic package lattice.
Driver IC is mainly 74HC595 74HC245/244 74HC138 4953.
Common indoor unit board shall screen size are:
Parameters: D = 3.75; Pitch 4.75mm 64-point wide-x16 point high, 1 / 16 sweep indoor light. Single red / red and green color
Parameter explanation:
LED diameter: refers to the diameter of light-emitting points D = 3.75mm
Light point distance of 4.75mm ---- according to the distance between the viewer choice, indoors usually selected 4.75
Unit Board Size: 64x16 --- the most common cell plate, the most readily available, the cheapest price.
1 / 16 scan: unit board of control.
Indoor Brightness: LED light points that the brightness, the brightness for indoor fluorescent lighting during the day needs to depend on the environment.
Color: One red, the most common and cheapest prices. Generally refers to red-green color, high price.
If you want to point a 128x16 screen, just use two units cascaded together can be a plate.
_ 3.1.2. Power
General using the power switch, 220V input, 5V DC output. Be noted that the LED display screen is as sophisticated electronic equipment, so using switching power supply, can not use transformers. For a single unit red indoor 64x16 board, all dark, current of 2A.
Reasoning out, 128x16 bright color screen all the time, current is 8A. Should choose 5V10A the switching power supply.
3.1.3. Control Card
We recommend using a low-cost screen control card section, you can control the 1 / 16 sweep of 256x16 points of the two-color screen, you can assemble the most cost-competitive LED screen. The control card is an asynchronous card, that is, the card can power save information, does not need to connect PC can display the information stored in it.
For more information, please refer to the user manual of the control card. http://www.smsled.com/
When the procurement unit board, ask the parameters clearly, 100% compatible with the unit board are:
08 points from the 64-point interfaces 4.75mm wide x16 high point, 1 / 16 sweep indoor light. Single red / red and green color
08 points from the 64-point interfaces 7.62mm wide x16 high point, 1 / 16 sweep indoor light. Single red / red and green color
08 points from the 64-point interfaces 7.62mm wide x16 high point, 1 / 16 semi-outdoor sweep brightness. Single red / red and green color
_
The controller interfaces with 16PIN 08 3.1.4. On 16PIN 08 Interface
As the cell plate and control the number of card manufacturers, so many cell board style interface, LED screen in the assembly, he must first determine the consistency of the interface only to facilitate assembly. Introduced here only the most commonly used LED Interface: LED Industry Code: 16PIN 08 Interface: he interface the following order:
2ABCDG1G2STBCLK161NNNENR1R2NN15 explained:
ABCD for the row selection signal,10.4 inch PC monitor STB (LT) as the latch signal, CLK (CK) as the clock signal, R1, R2, G1, G2 to display data, EN enable for the show, N for the ground (GND). Recognition unit control card interface board and the same, you can directly connected. And if not, will need to produce their own conversion line (to change the line order)
3.1.5. Connection
Divided into data lines, transmission lines, and power lines. Data cable for connecting control card and the LED board cable unit, transmission line for connecting control card and computer. Power cord is used to connect power and control card, power supply and LED module board. Connect the power unit board not less than the diameter copper wire of 1mm (mm)
3.2. Parts production
3.2.1. Cable (data cable) Production
Cable and data lines inside the computer chassis similar, but somewhat different line width. The city can buy in computer-related materials. Production of cables, need a tool that is of special pliers (picture), can greatly enhance the efficiency and yield. The materials produced cable: cable, thread scheduling, cable cap. Here we note that, if you make 16PIN (16 lines) emission lines, need to buy 16PIN the line and the corresponding row of the size of thread and cap. Production step, the thread cut with scissors flat, then put the first row of thread, (note line and head balance), and then into the central pressure of pliers, hard pressed, then wound over, installed cable cap. Cable hat is important, can effectively protect the cable, so cable is more sturdy, not provincial.
_
(Pliers photo cable accessories) 3.2.2. Power cord production
Power into 220V power cord and 5V power line. 220V power cable for connecting to the mains power switch, preferably a 3-pin plug, you can buy at the hardware store. Described here focuses on 5V DC power cord, because the current 5V larger, preferably more than 1mm in diameter, copper red and black on the line (be sure to red and black). Able to do so, it is best to line the two metal pieces fitted
_
(Figure) 3.2.3. RS232 line production
RS232 cable for connecting computers and control card, update the screen data. It should be used first and the DB9 cable (you can buy Computer City). Carefully observe the DB9 head, above a digital, connected to 5 brown, brown white of 3 connections. The cable clamp, mounted Fortunately DB9 head. (This is important, we must clamp, pull their own a few and see if a pull on the break). Then with a multimeter measuring about 2, if conduction. It should be pointed out, DB9 male head and female sub-head. Home computer is behind the seat, so buy a plug corresponding to the public. If you do not understand, please carefully look at your PC. Are generally not the serial port laptop, buy a USB-RS232 serial line
_
(DB9 accessories picture) 3.3. Cabling Guide
First installed, please strictly follow the steps to operate, reduce error.
Step 1: Check the power supply voltage, to identify positive and negative DC link power supply, the 220V power cord connected to the switching power supply, (the connection is correct, the terminal connected to the AC or NL) and then connecting the power. Will find the power supply has a lantern light, and then with a multimeter, DC range measuring about between V + and V-voltage, to ensure the voltage is between 4.8V-5.1V, next to a knob, you can adjust what voltage Phillips screwdriver. To reduce the heat to extend the life of the screen, in the brightness of less demanding situations, you can adjust the voltage to between 4.5V-4.8. Sure voltage is not the problem, disconnect the power, continue to assemble other parts.
Step 2: first power-down. Connect the red wire to V +, V-Connect the black wire, are connected to the control card and the LED module board, black line access control cards and power supply GND. Red line connection control card and cell board +5 V VCC. Each cell board a power cord. 10.4 inch LCD Monitors Upon completion, please check connections.
Power connection diagram Step 3: Connect the control and unit board, with the good of the flat cable, to connect. Note that the direction can not be reversed. Please note that unit interface board 2 16PIN, 1 is the input, and 1 output, close to the 74HC245/244 is input, the control card connected to the input. Output to connect to the next unit of input board
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