source:other news release time:2022-12-17 Hits: Popular:led screen wholesaler
The controller is used to control the illumination of pixels to promote the independence of driving. When it is necessary to present color video, the brightness and color of each pixel must be effectively controlled, and the scanning operation must be completed synchronously within the specified time. However, there are thousands of pixels on the large LED electronic display screen, which increases the complexity of control and the difficulty of data transmission.
It is unrealistic to use D/A to control each pixel in actual work, and a brand new one is needed at this time. The control scheme meets the complex requirements of the pixel system. Based on the analysis of visual principle, the on/off ratio of pixels is the main basis for people to analyze the average brightness.
Effective control of pixel brightness can be achieved by effectively adjusting this ratio. The application of LED electronic display screen under this principle can convert digital signals into time signals to achieve effective conversion between D/A.
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