Liquid crystal display brightness control method and device, and liquid crystal display device
A liquid crystal display and brightness control technology, applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problem of limited space for improving the contrast effect of the screen
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[0051] Such as Figure 6a Embodiment 1 of the present invention provides a schematic flow chart of a method of obtaining preset backlight gain coefficients, specifically:
[0052] S401. Obtain an average gray scale value of the global image according to the gray scale value of the image.
[0053] example, such as Figure 5a Embodiment 1 of the present invention provides a schematic diagram of partitioning image data blocks in a display area, combining figure 2 and Figure 5a As shown, according to the division rule of the backlight partition, the display panel is also divided into 144 virtual partitions, the global image displayed at the corresponding position on the display panel is divided into 144 partition image data blocks, and each partition image data block is extracted separately contains the grayscale values of all pixels, and then obtains the average grayscale value through a preset algorithm. Among them, the predetermined algorithm can be the gray scale avera...
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