Led electronic display image signal is how operation?

by:GKGD     2020-05-04
Led electronic display screen has become our life pass information of a new type of media, it not only show the colorful pictures to the person, but also can beautify the effect of the city. Then LED electronic display how to implement the display text, graphics, animation, images and video programs and other information. Because of light-emitting diodes (leds) are semiconductor devices, switching time is calculated according to the second level, no memory, large display area, and signal transmission interval length, and can't choose the most leading COG, SOB, such as large volume of the circuit to make, so the LED screen in driving down, power, power, color reduction degree of progress and consistency to the difficulty of flat panel display more than others. Led electronic display screen is a kind of digital flat panel display, there are two ways of processing image signal: the first: the multimedia approach, often referred to as synchronous screen method. This method is to use common multimedia card capture TV signal, and mediate, filter and sound separation, etc. Then image signal after A/D conversion, to MPEG coding compression, in order to store. When we play need to unpack it, and then directly on the computer monitor. Transmission screen signals is through a dedicated interface card from the DVI interface of computer or video card, and some processing on the interface card. At this time, the big screen in fact equivalent to a computer monitor or part of it, often referred to as the window, can achieve synchronous display of one to one correspondence. Due to computer monitor is progressive scan, so, if you don't pick a frame of the transmitted signal line processing, large screen display format is the format of the monitor. The second: big screen using the special signal processor. It is the interlaced scanning of TV signal, processed into a progressive scan signal, and then played on the led electronic display screen. And high-performance treatment function digits as high as more than 10, interpolation arithmetic to take when doing the scan conversion, motion estimation and compensation, and scan conversion, etc. Large led screen are now using this method, and more of the image signal processing, tries to elevate the signal to the broadcast, the effect is better, of course. Computer image processing, also should pass the processor and then transferred to the big screen. We are familiar with the large size of back projection TV and plasma TV screens are widely using this method, and the effect is much better than ordinary TV. In this case, the output signal is usually according to the transform of signal format to describe, this appears to be more precise.
At the same time, as the recent research of GKGD shows, the benefits of improved productivity and firm performance can make implementing basic management practices worth it.
The guiding vision of Shanxi high-tech Huaye Electronic Group Co., Ltd. is 'Bringing the best to everyone we touch'. By 'The best', we mean the best products, the best people and the best ideas.
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