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1. (WO2018184335) GRAY SCALE VOLTAGE COMPENSATION METHOD AND CIRCUIT FOR LIQUID CRYSTAL PANEL, AND LIQUID CRYSTAL PANEL

Pub. No.:    WO/2018/184335    International Application No.:    PCT/CN2017/097744
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Fri Aug 18 01:59:59 CEST 2017
IPC: G09G 3/36
Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
深圳市华星光电技术有限公司
Inventors: HE, Tao
何涛
CHEN, Yu-Yeh
陈宥烨
WU, Yu
吴宇
HE, Jhen-wei
何振伟
Title: GRAY SCALE VOLTAGE COMPENSATION METHOD AND CIRCUIT FOR LIQUID CRYSTAL PANEL, AND LIQUID CRYSTAL PANEL
Abstract:
The invention discloses a gray scale voltage compensation method for a liquid crystal panel, a circuit for a liquid crystal panel, and a liquid crystal panel including the circuit. The method comprises steps of: determining a common voltage and a pixel voltage, the pixel voltage being a voltage in which the positive and negative polarities are alternately inverted, so that the pixel voltages of positive and negative polarities of all the pixels of at least two different display regions of the liquid crystal panel are symmetrical with respect to the common voltage and the maximal pixel voltages of the positive polarity of all the pixels of at least two different display regions are equal, wherein the common voltage is adjusted and/or at least part of the pixel voltages of at least two different display areas of the liquid crystal panel are compensated (S101); and outputting the common voltage and the pixel voltage (S102). The invention adjusts the common voltage and/or compensates the pixel voltage to minimize the residual image 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.