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Liquid crystal display, display panel and VCOM voltage control method and device

A voltage control method and display panel technology, applied to static indicators, instruments, etc., can solve the problems of affecting the brightness of the screen, affecting the use effect, brightness jump, etc., and achieve the effect of eliminating the flickering phenomenon and improving the user experience

Inactive Publication Date: 2017-12-12
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, if figure 1 As shown, the reference voltage VCOM output by the display panel is fixed, so that the refresh frequency is different, the charging time of the display panel and the display brightness will have a large difference, which will directly affect the brightness of the screen, especially when the refresh frequency is switched, there will be Brightness jumps and screen flickering problems directly affect the use effect

Method used

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  • Liquid crystal display, display panel and VCOM voltage control method and device
  • Liquid crystal display, display panel and VCOM voltage control method and device
  • Liquid crystal display, display panel and VCOM voltage control method and device

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] The liquid crystal display, the display panel and the VCOM voltage control method and device thereof according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] figure 2 It is a flowchart of a method for controlling the VCOM voltage of a display panel according to an embodiment of the present invention.

[0030] like figure 2 As shown, the VCOM voltage control method of the display panel according to the embodiment of the present invention includes...

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Abstract

The invention discloses a liquid crystal display, a display panel and a VCOM voltage control method and device. The method comprises the following steps: acquiring a refresh frequency of the display panel; calling a preset VCOM voltage database to acquire VCOM voltage data corresponding to the refresh frequency according to the refresh frequency; generating a VCOM voltage regulation signal used for regulating a fixed output VCOM voltage signal of the display panel according to the VCOM voltage data; and performing synthetic processing on the VCOM voltage regulation signal and the fixed output VCOM voltage signal of the display panel so as to generate a VCOM voltage synthesis signal, and outputting the VCOM voltage synthesis signal to a VCOM voltage signal input end of the display panel. Therefore, the brightness and flicker indicator of the display panel under different refresh frequencies can be the same, namely a splash screen phenomenon of the display panel can be eliminated, and the using experience of the user is further improved.

Description

technical field [0001] The present invention relates to the technical field of displays, in particular to a VCOM voltage control method of a display panel, a VCOM voltage control device of a display panel, a display panel and a liquid crystal display. Background technique [0002] When the display panel is applied to notebook products, since there are many application occasions of notebook products, its refresh rate will be adjusted. For example, for gaming notebooks, the refresh rate needs to be increased to 120Hz or 144Hz to improve the display effect. At the same time, the refresh rate will also be increased to Reduced to 40Hz to reduce panel power consumption and extend battery life. Currently, if figure 1 As shown, the reference voltage VCOM output by the display panel is fixed, so that the refresh frequency is different, the charging time of the display panel and the display brightness will have a large difference, which will directly affect the brightness of the scre...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3696G09G3/3655G09G2340/0435G09G2360/145G09G2320/0247G09G3/3618G09G2310/08G09G2320/064
Inventor 侯帅尚飞闵航
Owner BOE TECH GRP CO LTD
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