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Driving method and driving system of display panel and display device

A technology of a display panel and a driving method, applied to static indicators, instruments, etc., can solve the problems of large viewing angle deviation, optical property defects, color deviation quality deterioration, etc., achieve good adjustment effect, enhance adjustment range, and avoid light transmission. rate reduction effect

Active Publication Date: 2019-04-02
HKC CORP LTD
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Problems solved by technology

[0003] Most of the current large-size LCD panels use negative VA (Vertical Alignment, vertical alignment technology) liquid crystal or IPS (In-Plane Switching, in-plane switching) liquid crystal technology. Compared with IPS liquid crystal technology, VA liquid crystal technology has higher production efficiency And the advantages of low manufacturing cost, but in terms of optical properties compared with IPS liquid crystal technology, there are more obvious optical property defects; that is, some large-size display panels, especially VA-type liquid crystal drivers, cause the viewing angle to be blurred when the brightness of the large viewing angle is rapidly saturated with the voltage. The quality contrast and color cast are seriously worse than the quality of the face-to-face image quality, that is, there is a big-view character cast problem

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Embodiment Construction

[0051] Specific structural and functional details disclosed herein are representative only and for purposes of describing example embodiments of the invention. This invention may, however, be embodied in many alternative forms and should not be construed as limited to only the embodiments set forth herein.

[0052] The present invention will be further described below in conjunction with drawings and embodiments.

[0053] Large-size LCD panels, especially VA (Vertica Aignment, Vertical Alignment Technology) type LCD panels, corresponding to large viewing angles, the brightness quickly saturates with voltage, resulting in serious deterioration in viewing angle image quality contrast and color shift compared to the front view image quality.

[0054] figure 1 It is a schematic diagram of the change of large viewing angle and frontal viewing angle deviation of various representative color systems of liquid crystal displays, refer to figure 1 , it can be clearly found that the colo...

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Abstract

The invention discloses a driving method and driving system of a display panel and a display device. The driving method comprises the steps of receiving a first color signal, and converting the firstcolor signal into a first color space signal; obtaining a current color saturation signal S of the first color space signal and a corresponding first preset adjustment coefficient; adjusting the current color saturation signal S by using the first preset adjustment coefficient to obtain a second color saturation signal S'; calculating a third color saturation signal S'' according to the current color saturation signal S and the second color saturation signal S'; completing twice color saturation value adjustment, converting the third color saturation signal S'' into a second color space signalin an HSV system; and converting the second color space signal into a second color signal in an RGB system so as to drive the display panel. According to the invention, secondary adjustment is performed on the color saturation signal so as to improve the problem of color deviation more pertinently and more accurately.

Description

technical field [0001] The present invention relates to the technical field of display panels, in particular to a driving method, a driving system and a display device of a display panel. Background technique [0002] With the development and progress of science and technology, liquid crystal displays have become the mainstream products of displays due to their thin body, power saving and low radiation, and have been widely used. Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal panel and a backlight module. The working principle of the liquid crystal panel is to place liquid crystal molecules between two parallel glass substrates, and apply a driving voltage on the two glass substrates to control the rotation direction of the liquid crystal molecules, so as to refract the light from the backlight module to produce a picture. [0003] Most of the current large-size LCD panels use negative VA (Ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G2320/0242
Inventor 康志聪
Owner HKC CORP LTD
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