Method, device and system for compensating brightness of a liquid crystal module
AssigneeHisense Hiview Tech Co., Ltd.
InventorsZhicheng Song, Mingsheng Qiao, Weidong Liu
Life of this patent
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Abstract
A method for compensating the brightness of a liquid crystal module involves acquiring an image of a liquid crystal module to obtain the acquired image. The acquired image of the liquid crystal module is compared with a standard image to find a dark region. The compensation coefficient of each pixel in the dark region is calculated. In a display control circuit of the liquid crystal module, the calculated compensation coefficient of pixels is stored for compensating the backlight unit corresponding to pixels in dark region.
Claims13
A method of compensating the brightness of a liquid crystal module, the method comprises:
- acquiring an image of the liquid crystal module to obtain an acquired image;
- comparing the acquired image with a standard image to find a dark region;
- calculating a compensation coefficient for each pixel in the dark region;
- and
- storing the calculated compensation coefficient in a display control circuit of the liquid crystal module for compensating backlight units corresponding to pixels in the dark region.
A device for compensating the brightness of a liquid crystal module, the device comprises:
- an image acquiring unit for acquiring an image of liquid crystal module to obtain an acquired image of the liquid crystal module;
- an image comparing unit for comparing the acquired image with a standard image to find dark region;
- and
- a compensation coefficient calculating unit for calculating the compensation coefficient of each pixel in the dark region and storing the calculated compensation coefficient in a display control circuit of the liquid crystal module in order to compensate the backlight unit corresponding to pixels in the dark region.
A system for compensating the brightness of a liquid crystal module, the system includes:
- a video camera for acquiring image of a liquid crystal module to obtain the acquired image;
- a computer for comparing the acquired image with the standard image to find dark region and calculating the compensation coefficient of each pixel in the dark region, and storing the calculated compensation coefficient in display control circuit of the liquid crystal module, for compensating the backlight unit corresponding to pixels in dark region.
Dependencies are inferred from the claim text.