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Display panel driving method and device

A technology of display panel and driving method, which is applied in the direction of static indicators, instruments, etc., can solve the problems of reducing the display effect of the display panel, and achieve the effect of improving the display effect and optimizing the contrast ratio

Active Publication Date: 2019-09-17
HKC CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a driving method and device for a display panel to solve the problem that the method of increasing the gamma value in an example still reduces the overall display effect of the display panel

Method used

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  • Display panel driving method and device

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Embodiment Construction

[0052]In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the invention is for the purpose of describing specific embodiments only, and is not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the a...

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Abstract

The present invention relates to a driving method and device of a display panel. The method comprises: dividing sub-pixels of the same color on the display panel into multiple groups of sub-pixel groups; a difference curve between the changing curve and the curve of brightness changing with the driving voltage at the side viewing angle; and for each color sub-pixel, adjusting the gamma value of each sub-pixel group according to the difference curve. The above method and device for driving the display panel is equivalent to dividing the display panel into multiple blocks (ie, sub-pixel groups), and then individually adjusting the gamma value for each block, because the range of the driving voltage involved in each block is relatively small. It is small, and it is easy to simultaneously optimize the contrast ratio of the brightness changing with the driving voltage under the front viewing angle and the side viewing angle, so that the image quality of the front viewing angle and the side viewing angle can be taken into account, and the display effect of the display panel is improved.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a method and device for driving a display panel. Background technique [0002] Typical large-size LCD panels usually use negative VA (Vertical Alignment) liquid crystal or IPS (In-Plane Switching, in-plane switching) liquid crystal technology. Compared with IPS liquid crystal technology, VA type liquid crystal technology has a higher production rate. Compared with IPS liquid crystal technology, there are obvious optical property defects in terms of optical properties, especially in the case of large-size panels that require a larger viewing angle for commercial applications. [0003] The trend of brightness saturation of each sub-pixel (that is, the curve tends to be flat) increases rapidly under the side viewing angle of the example VA type liquid crystal display panel, especially at medium and low driving voltages, the brightness saturates rapidly, and the contras...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G2320/0673G09G3/2003G09G2320/0276G09G2320/028G09G2320/068G09G2300/0452
Inventor 康志聪
Owner HKC CORP LTD