Method and device for regulating pixel voltage symmetry

A technology for adjusting pixels and pixel voltages, applied to static indicators, instruments, etc., can solve problems such as the flicker value being easily disturbed by noise, inaccurate pixel symmetrical voltage, and affecting the display quality of TFTLCD, so as to improve display quality and pixel symmetrical voltage Accurate, low-disruption results

Inactive Publication Date: 2011-09-28
BOE TECH GRP CO LTD +1
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Problems solved by technology

[0005] However, in the process of realizing the present invention, the inventors found that, in the flicker method, the flicker value of the pixel is used as the reference for determining the symmetrical voltage of the pixel, and the flicker value is relatively easily disturbed by noise. Therefore, this makes the use of flicker The pixel symmetrical voltage determined by the method is often inaccurate, which affects the display quality of TFT LCD

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  • Method and device for regulating pixel voltage symmetry
  • Method and device for regulating pixel voltage symmetry

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] In order to improve the display quality of TFT LCD, the method for adjusting the pixel voltage symmetry provided by the embodiment of the present invention is based on the brightness of the pixel, and on the basis of setting the common voltage, the positive pixel voltage and the pixel voltage satisfying the symmetry of the pixel voltage are determined. pixel negative voltage. Hereinafter, how to realize adjusting pixel voltage symmetry will be described in d...

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Abstract

The embodiment of the invention discloses a method and device for regulating pixel voltage symmetry, relating to the liquid crystal display technology and aiming to improve the display quality of a TFT (Thin Film Transistor) LCD (Liquid Crystal Display). The method comprises the steps of: simultaneously regulating pixel positive voltages and pixel negative voltages according to a set pixel common voltage; obtaining each brightness value at different pixel positive voltages or pixel negative voltages; confirming the pixel positive voltage and the pixel negative voltage which are corresponding to the brightness value serving as an extreme value according to the corresponding relation between the pixel positive voltages or pixel negative voltages and the each brightness value; using the pixel positive voltage and the pixel negative voltage which are corresponding to the brightness value serving as the extreme value as the pixel positive voltage and the pixel negative voltage which satisfy the pixel voltage symmetry. The method and device which are provided by the embodiment of the invention are mainly applied to the TFT LCD technology.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a method and device for adjusting pixel voltage symmetry. Background technique [0002] With the wide application of thin film transistor liquid crystal displays (Thin Film Transistor Liquid Crystal Display, TFT LCD) in aspects such as televisions and computer monitors, its display quality has also attracted more and more attention. [0003] For a pixel in a TFT LCD, the symmetry of its positive pixel voltage (V+) and negative pixel voltage (V-) relative to the common voltage (Vcom) is a key indicator reflecting its display quality. If the pixel voltage is asymmetrical, because the brightness corresponding to the positive and negative voltages of the pixel is different, flickering will occur. If this voltage asymmetry phenomenon exists for a long time, other defects such as afterimages will also occur. Therefore, in the manufacturing process of the TFT LCD, it is necessary t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 赵海玉
Owner BOE TECH GRP CO LTD
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