With the development of LED display time, the application of more and more widely, people on the led display of awareness, awareness is also the deeper, before the problem did not understand the gradually show up, from the technical point of view, the current China's LED display technology mainly has the following problems:
One is the problem of lack of brightness
LED display of the main advantages of the complex outdoor environment is more complex adaptability, outdoor environment, the characteristics of the requirements of the LED display in sunny, cloudy, rain and snow weather, long distance, multi-angle can guarantee enough Brightness to convey information, so the brightness is particularly important, and because LED brightness is insufficient, making the current LED lighting industry can only act as a supporting role, mainly for decoration, which for the comprehensive application of thousands of LED is a huge challenge.
Second, is the problem of LED color
Single LED application, basically there is no chromatic aberration problem, but many of the integrated use of LED, then the color problem will be highlighted. Although there are technologies to improve this problem, but due to domestic technical and production levels are limited, the same color area in the same batch of LED is still there are differences, and this difference is difficult to escape the naked eye, so it is difficult to ensure that the LED display color Reducibility and vividness.
Third, LED display control chip
True color high-resolution LED electronic display as a new display media, with its clear image and high-performance playback capabilities, more and more people's attention. For the LED display unit, the three-color LED die is the core device, so should use a small difference between the wavelength and luminous intensity of good consistency of high-quality die, and this technology is mainly in the hands of world-renowned large companies, such as Japan's Japan and other companies.
Fourth, heat dissipation
As the outdoor environment temperature changes greatly, coupled with the display work itself to produce a certain amount of heat, if the ambient temperature is too high and coupled with poor heat, will likely lead to the work of the integrated circuit is not normal, or even burned, so that the display system can not normal work.