Liquid crystal display, display panel and VCOM voltage control method and device thereof
A voltage control method and display panel technology, applied in static indicators, instruments, etc., can solve problems affecting screen brightness, brightness jumps, screen flicker, etc., and achieve the effect of improving user experience and eliminating the phenomenon of flickering screen.
Inactive Publication Date: 2020-03-27
BOE TECH GRP CO LTD +1
View PDF6 Cites 1 Cited by
- 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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
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] Such as figure 2 As shown, the VCOM voltage control method of the display panel according to the embodiment of the present invention inclu...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a liquid crystal display, a display panel and a VCOM voltage control method and device thereof, wherein the method includes the following steps: obtaining the refresh frequency of the display panel; calling a preset VCOM voltage database according to the refresh frequency to obtain the corresponding refresh frequency VCOM voltage data; generate a VCOM voltage adjustment signal for adjusting the VCOM voltage signal fixedly output by the display panel according to the VCOM voltage data; synthesize the VCOM voltage adjustment signal and the VCOM voltage signal fixedly output by the display panel to generate a VCOM voltage composite signal, And output the VCOM voltage synthesis signal to the VCOM voltage signal input terminal of the display panel, so that the brightness and flicker value of the display panel can be the same under different refresh frequencies, that is, the flickering phenomenon of the display panel can be eliminated, and the user's use is improved. experience.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
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