Backlight source control device and method based on three-colour light-emitting diode in liquid crystal display screen

Abstract

This invention relates to trichromatic LBD back illuminant's control device and the method of one kind of liquid crystal display device. The back illuminant module and the liquid crystal panel can be divided into the block array. On the back illuminant module's array block there sets the trichromatic LBD. The liquid crystal driving signal accordingly passes through the image comparing switch module, the back illuminant module storage allocation and the back illuminant driver element and is sent to the back illuminant module. The liquid crystal driving signal accordingly passes through the image comparing switch module, the non-module storage allocation and the liquid crystal driver element and is sent to the liquid crystal panel module. The method includes the storage of display signal, separately taking out the max of all kinds of color brightness and store it for the storage array module, having a switch and storing the all colors liquid crystal drive value for the every dot in the module, having the back illuminant display according to color brightness and having the liquid crystal display. Adopting this device and method improves the frame's contrast and saturation; it saves energy and protects the environment. The capability is stable and credible, it has wide use range.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to the technical field of dynamic control of the backlight area of ​​the liquid crystal display, and specifically refers to a backlight control device and method based on three-color light-emitting diodes in a liquid crystal display. Background technique [0002] In modern society, people's pursuit of quality of life is getting higher and higher, and what people pay most attention to is spiritual and cultural life, especially various TV entertainment activities. With the advancement of science and technology, various large-screen TV display devices have entered thousands of households, and various advanced display technologies emerge in endlessly. At present, among the existing technologies, the most worthy of people's attention is the development of liquid crystal display technology. . [0003] As we all know, the contrast of the existing liquid crystal display scre...

AI Technical Summary

Problems solved by technology

[0003] As we all know, the contrast of the existing liquid crystal display screens is not high, and it is difficult to realize the dynamic control of the area of ​​the backlight source that changes with the brightness of the image, so that the ideal effect of perfectly displaying the image quality cannot be achieved, and it may even make the entire picture The quality is reduced, and the ideal contrast, brightness and saturation cannot be achieved, which affects people's normal viewing, which brings great inconvenience to people's lives.

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