LED display imaging principle and the best viewing angle

Sep 18, 2017

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high brightness led video wall.jpg


LED display imaging principle


Which includes power supplies, video encoders and demultiplexers, line drivers, digital signal processors (DSPs), etc., which cooperate closely to produce video images. If you look closely at the LED display, you will see hundreds of individual video panels. Close to the point, you will find that each panel contains 16X16 pixels. The anode of each LED is electrically connected to the output of an LED driver. Ultimately, these tens of thousands of LED drivers will control the generation of video images through hundreds of thousands of LED lights.


LED display brightness requirements


LED display brightness is not the brighter the better, in some environments, the brightness is too bright or too dark can not play the best display display. This requires the purchase of LED display, according to the brightness of the use of occasions to match the most appropriate brightness or automatically adjust through the drive. So as to not only hurt the eyes of the audience can provide a satisfactory LED display quality.


Most high-end LED drivers provide designers with a variety of ways to control LED current in their systems. These drives have some features that help reduce LED brightness, such as point correction (DC), pulse width modulation (PWM) dimming, and global brightness control (BC). Although these features provide the same basic function to adjust the LED brightness, but their use is different. Understanding the right use of these features is the key to having the best quality video.


LED display the best viewing angle


With regard to the wide viewing angle and the best viewing distance of the LED display screen, it is necessary to perform a standard measurement calculation on the occasion of the installation, calculate the viewing angle and visual distance required, and then press this request to match To ensure that products meet the specific needs of the occasion, for the audience to show the most exciting, the best quality of the screen.