The main technical problems of LED screen at present

There is no doubt that the development of any industry will encounter the bottleneck of technical problems, especially high-tech industries such as LED display screens. Only when producers face up to the problem can the development of the entire industry be promoted. The following Chip Optoelectronics will analyze the main problems of LED screens from a technical perspective.

One is the problem of insufficient brightness. The main advantage of the LED display is its super adaptability to the changing and complex outdoor environment. The characteristics of the outdoor environment require that the LED display can ensure sufficient viewing in sunny days, cloudy days, rainy and snowy weather, long-distance, and multiple viewing angles. Brightness is used to convey information, so brightness is particularly important. However, due to the insufficient brightness of LEDs, LEDs can only play a supporting role in the lighting industry and are mainly used for decoration. This is a huge challenge for the comprehensive use of tens of thousands of LEDs.

 The second is the problem of LED color difference. The application of a single LED basically does not have the problem of chromatic aberration, but if many LEDs are used comprehensively, the problem of chromatic aberration will become prominent. Although there are existing technologies to improve this problem, due to the limitation of domestic technology and production level, there are still differences in the same batch of LEDs in the same color area, and this difference can hardly escape the pickiness of the naked eye, so it is difficult to guarantee the color of the LED display. Restoration and realism.

The third is the LED display control chip. As a new display medium, true-color high-resolution LED electronic display has attracted more and more attention for its clear images and high-performance playback capabilities. As for the LED display unit, the tri-color LED die is its core device, so high-quality die with small wavelength difference and good luminous intensity consistency should be used, and this technology is mainly in the hands of world-renowned large companies.

The fourth is heat dissipation. Because the temperature of the outdoor environment changes greatly, and the display itself generates a certain amount of heat when it is working, if the ambient temperature is too high and the heat dissipation is not good, it is likely to cause the integrated circuit to work abnormally or even be burned, so that the display system cannot be used. normal work.

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