Outdoor display data query classes: aviation outdoor display ticket office, international cruise ticket offices, banks, stock exchanges, futures markets, libraries, ...... tour guide: parks, playgrounds, travel agencies, museums, outdoor display-oriented class : airports, docks, railway stations, office buildings, large game ...... LED more and more widely available to the use of the reflection of the pace of the information age. Xiaodong Wang, the founder of the Dongcheng Intelligent Network Technology Co., Ltd., he graduated from the Department of Physics, Suzhou University, is luminous basic materials research in the school, his career started from the LED, with a only small LED outdoor display screen to make a big deal. Corporate citizenship corporate philosophy --- a qualified company successfully developed a revolutionary technology (exclusive) of the display, can greatly improve the picture texture and give customers significantly lower use cost (top picture effect, energy saving more than 50%, the life expectancy doubled, maintenance-free). For details, please call the hotline and enter official website browsing. The RTYUII Hotline: 13684917757 MO Hong-Jin URL: http://www.Ltgd.cn/custom.asp?id=39 As the LED current characteristics of the device, that in saturated conduction premise, its brightness as the current size changes The change does not change with the variation of the voltage across. Dedicated chip, the most important feature is to provide a constant current source output, to ensure the stability of the LED driver, eliminating the outdoor display LED flashing phenomenon. The characteristics of the output current, constant current, the occasions for applications that require high-current, high-quality, such as outdoor full color display, indoor full color screen, etc.. Use function is divided into: the graphic display, multimedia video display, and the prices display, bar display, interest rate display, text LED electronic display, graphic LED electronic display LED electronic display computer video TV video LED electronic display and market LED electronic display. Generally include the use of securities, interest rates, futures prices of LED electronic display the LE outdoor display D display. By the use of the environment is divided into: indoor led display, outdoor led display, semi-outdoor led display, LED large screen, LED large screen. When the forward voltage is less than a certain value (called a threshold value), the current is very small and does not emit light. When the voltage exceeds a certain value, the forward current is increased rapidly with the voltage, a light emitting. VI curve can be drawn forward voltage of the light emitting tube, reverse current and outdoor display materials and packaging technologies continue to evolve, prompting the brightness of the LED products continuously improve increasingly wide application of LED and LED industry to provide a stable growth market territory. LED as the backlight of the display, and more recently hot topic, the small size display backlight gradually developed into the large-size LCD TV backlight, quite gradually replace the CCFL backlight posture. LED in the color, brightness, life, power consumption degrees, and environmental demands such as more advantages than traditional cold cathode fluorescent lamp (CCFL), thus actively involved in attracting industry. Another method is the contents of the serial transmission of the scanning plate is not a switch signal of each LED but an 8-bit binary luminance value. Each LED has a pulse width modulator to control the lighting time. Thus, in a repeating cycle of light, each pixel in the 16-level grayscale only need four pulses, 256 grayscale 8 pulse, and greatly reduce the frequency of serial transmission. This decentralized control outdoor display LED display hardware part depending on the type of LED display area, the use of on-site conditions determine part of the general-purpose computer, communication line, dedicated data conversion part and display part. Shall describe in detail specification: l on the host computer, a variety of optional card, external devices, and communication interface requirements. 3, with a comprehensive self-test procedures and with various levels of diagnostic procedures as needed. ? LED display function? On the environment and the quality of the application of LED outdoor display