| 摘要 |
The present invention relates to a processing device and method for high dynamic contrast of a liquid crystal display device. The processing device comprises a receiver, an inverter and a source driving IC connected to a central processing module, a gamma voltage controller connecting to the source driving IC. The process method comprises: performing histogram statistic processing on a received low voltage differential signaling data; obtaining a backlight source dimming coefficient of picture of a same frame and an I/O gray scale mapping table corresponding to the backlight source dimming coefficient according to result of the histogram statistic processing; controlling to adjust data output to a source driving IC according to the I/O gray scale mapping table; and controlling luminance of a backlight source according to the backlight source dimming coefficient. The present invention adjusts the luminance of the backlight source and the output data of the LCD device concurrently, therefore improves dynamic contrast of pictures, mitigates problems of low contrast and flicker in the LCD, and save the power consumption of the backlight source.
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