LCD device high dynamic contrast processing equipment and method

Abstract

The invention relates to a high dynamic contrast ratio treatment device of a liquid crystal display device and a processing method. The treatment device comprises a receiver, an inverter and a source driving integrated circuit which are connected with a center processing module, wherein a gamma voltage controller is connected with the source driving integrated circuit. The processing method comprises that low pressure differential signal data which are is received are treated through histogram statistics, a backlight dimming coefficient of a same frame of pictures and an input output gray level mapping table which corresponds to the backlight dimming coefficient are obtained according to a histogram statistics processing result, data which are output to the source driving integrated circuit are controlled and adjusted according to the input output gray level mapping table, and the brightness of a backlight source is controlled according to the backlight dimming coefficient. The liquid crystal display high dynamic contrast ratio treatment device of a liquid crystal display device and the processing method respectively adjust the brightness of the backlight source and output data of a liquid crystal panel simultaneously, thereby increasing the dynamic contrast ratio of the pictures, improving the problems that a liquid crystal display device has low contrast ratio and flashes and the like, and saving the power consumption of the backlight source simultaneously.

Description

technical field [0001] The invention relates to a digital image processing device and a processing method of a liquid crystal display device, in particular to a processing device and a processing method for high dynamic contrast of a liquid crystal display device. Background technique [0002] With the continuous maturity of technology and the continuous reduction of cost, thin film transistor (TFT) liquid crystal display and TFT liquid crystal TV have gradually replaced the traditional CRT in the dominant position in the display field. Compared with CRT displays, TFT liquid crystal display devices have many advantages such as low radiation, low power consumption, and small size. However, low brightness and contrast is a defect of the TFT liquid crystal display device, especially when displaying a dark state image, the layering effect is reduced due to the existence of a gamma (Gamma) curve. [0003] To solve this problem, a dynamic gamma control (Dynamic Gamma Control, DGC...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high dynamic contrast processing device and processing method of a liquid crystal display device based on backlight control, which can greatly improve the dynamic contrast and picture quality of the picture under the premise of keeping the brightness of the liquid crystal panel unchanged, and effectively solve the current problem. There are technical defects such as high power consumption and screen flickering

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