LCD device and its image display process

Abstract

The invention discloses an image display method of an LCD, which is used for driving a plurality of pixels when a first vision frame and a second vision frame are sequentially displayed. The method includes the following steps: a gray-scale difference between the first vision frame and the second vision frame is detected to judge the change of a driving mode between the first vision frame and the second vision frame; according to the change of driving modes, the quantity proportion of the pixels driven by a dynamic mode and a static mode is regulated when the second vision frame is displayed; and a plurality of gray-scale data corresponding to the pixels are regulated when the second vision frame is output. The imaging display method can avoid the sudden and severe change of the brightness of images when the driving modes are changed so as to lead users to have no feeling of the fluctuation of the images so as to further enhance the quality of the LCD and the image display.

Description

technical field [0001] The present invention relates to a liquid crystal display device and its driving method, in particular to a liquid crystal display device using black (gray) insertion technology and its image display method. Background technique [0002] In order to enhance the display effect of the liquid crystal display device, the image data pulse is often shortened by adding a sub-frame, which is called a pulse-like liquid crystal display technology. The common one in the prior art is to add a normal The normally black sub-viewbox can be called black insertion or gray insertion technology. [0003] In the image display method of the liquid crystal display device in the prior art, the pixels on the display surface are driven in the same view frame in a unified dynamic / static mode according to the dynamic / static characteristics of the view frame, that is, when the pixels are to be driven in the dynamic mode When driving, it is realized by the aforementioned method o...

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Problems solved by technology

[0008] However, in the above-mentioned second prior art, when the image continues to be in the dynamic mode, replacing the inserted black image with the gray image can indeed improve the flickering of the dynamic image, but when the image changes from dynamic to static, all The pixels are driven from the dynamic mode to the static mode. In this way, the brightness of the entire image suddenly increases because the image is converted to static without supplementary gray screen, and the user will feel the image surge. In turn, the quality of the image displayed by the liquid crystal display device is degraded.

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