The main problems of LED display technology in my country

Abstract: 　　 One is the problem of insufficient brightness. The main advantage of the led electronic display is its strong adaptability to the changeable and complex outdoor environment. The characteristics of the outdoor environment require that the led display is sufficient in sunny, cloudy, rainy and snowy weather, long distance, and multiple viewing angles. The brightness of the LED is used to transmit information, so the brightness is particularly important, and due to the insufficient brightness of the LED, 　　 is the problem of insufficient brightness. The main advantage of the led electronic display is its strong adaptability to the changeable and complex outdoor environment. The characteristics of the outdoor environment require that the led display is sufficient in sunny, cloudy, rainy and snowy weather, long distance, and multiple viewing angles. The brightness of the LED is used to transmit information, so the brightness is particularly important. Due to the lack of LED brightness, the current LED can only act as a supporting role in the lighting industry, mainly for decoration. This is a huge challenge for the comprehensive use of tens of thousands of LEDs. .　　 The second is the LED color difference problem. The application of a single LED basically has no chromatic aberration problem, but if a large number of LEDs are used in a comprehensive manner, the chromatic aberration problem will become prominent. Although there are technologies to improve this problem, due to the limitations of domestic technology and production levels, there are still differences in the same color zone and the same batch of LEDs, and this difference is difficult to escape the naked eye, so it is difficult to ensure the color of the . Reducibility and fidelity.　　 The third is the control chip. As a new display medium, true-color high-resolution LED electronic display screens have attracted more and more attention with their clear images and high-performance playback capabilities. As for the unit, the three-color LED die is its core device, so high-quality die with small wavelength difference and good luminous intensity should be used. This technology is mainly in the hands of world-renowned large companies, such as Japan’s Nichia Corporation, etc.　　Fourth is heat dissipation. Because the outdoor environment temperature changes greatly, and the display itself has to generate a certain amount of heat when it is working, if the environment temperature is too high and the heat dissipation is poor, it will likely cause the integrated circuit to work abnormally or even be burned, making the display system unable to normal work.
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