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A liquid crystal panel, a grayscale voltage compensation method, and a driving circuit thereof

A liquid crystal panel, gray-scale voltage technology, applied in static indicators, instruments, etc., can solve problems such as image retention adjustment, and achieve the effects of small image retention, cost savings, and improved display performance

Active Publication Date: 2019-06-07
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a grayscale voltage compensation method for a liquid crystal panel, a driving circuit for a liquid crystal panel, and a liquid crystal panel, aiming at solving the problem that the image sticking in the entire liquid crystal panel area cannot be adjusted to smallest problem

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  • A liquid crystal panel, a grayscale voltage compensation method, and a driving circuit thereof
  • A liquid crystal panel, a grayscale voltage compensation method, and a driving circuit thereof
  • A liquid crystal panel, a grayscale voltage compensation method, and a driving circuit thereof

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Embodiment Construction

[0019] refer to figure 1 , figure 1 It shows the flow of a grayscale voltage compensation method for a liquid crystal panel provided in the first embodiment of the present invention. For the convenience of description, figure 1 Only the parts related to the embodiments of the present invention are shown, figure 1 The gray scale voltage compensation method of the liquid crystal panel of example comprises step S101 and step S102:

[0020] S101. Determine a common voltage and a pixel voltage, the pixel voltage is a positive and negative polarity reversal voltage, so that the pixel voltages of the positive and negative polarities of all pixels in at least two different display areas of the liquid crystal panel are relative to the The common voltage is symmetrical, and the maximum pixel voltages of the positive polarity of all the pixels in the at least two different display areas are equal, wherein the common voltage is adjusted, and / or the at least two different display areas o...

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Abstract

Disclosed are a gray scale voltage compensation method of a liquid crystal panel, a circuit for a liquid crystal panel and a liquid crystal panel including the circuit. The invention adjusts the common voltage and / or compensates the pixel voltage to minimize the afterimage of the whole liquid crystal panel under the premise of saving the cost of the liquid crystal panel and greatly improves the panel display performance.

Description

technical field [0001] The invention relates to the technical field of liquid crystal panel display, in particular to a gray scale voltage compensation method of a liquid crystal panel, a driving circuit of a liquid crystal panel and a liquid crystal panel. Background technique [0002] The gate (Gate) scan voltage is affected by the load of the in-plane phase shift circuit (RC, Resistance-Capacitance Circuits), which causes the voltage drop of the scan line to be different in different display areas of the liquid crystal panel. Due to the existence of the feedthrough effect (FeedThrough Effect), different voltage drops lead to asymmetry of pixel voltages in different display regions with respect to the common voltage, that is, different degrees of image sticking (IS, Image Sticking). [0003] Today's LCD panels generally adopt a common voltage design in order to save costs. By adjusting the common voltage to offset the asymmetry of the pixel voltage with respect to the comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 何涛陈宥烨吴宇何振伟
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD