Driving method for suppressing flicker of display panel and driving circuit thereof

CN122929968APending Publication Date: 2026-10-16SITRONIX TECH CORP
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Patent Information

Application Number
CN202611219552.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2019-08-02
Filing Date
2020-08-03
Publication Date
2026-10-16

AI Technical Summary

Technical Problem

[0004]由于液晶显示面板具有许多电路与内部结构物，所以衍生诸多种类的寄生电容且无法一一消除，某些寄生电容甚至完全无法避免，对于液晶电容和贮存电容造成影响，例如汲极-闸极寄生电容(Cgd)，其会导致电容的电压于扫描讯号禁能时偏移，例如液晶电容的电压往下偏移，如此利用极性反转驱动方式驱使像素显示相同灰阶时，寄生电容会导致液晶电容的两不同极性电压不对称于共同电压，所以像素所显示的影像即会产生闪烁，如此即影响显示质量

Benefits of technology

[0013] An embodiment of the present invention discloses a driving circuit for suppressing display panel flicker, comprising a source driving circuit and a common voltage generating circuit. The source driving circuit generates at least one first source signal corresponding to at least one first pixel on a first scan line and at least one second source signal corresponding to at least one second pixel on a second scan line. The common voltage generating circuit generates a first common voltage and a second common voltage. When driving the at least one first pixel and the at least one second pixel to display the same grayscale image, the first common voltage is not equal to the second common voltage, and the at least one first source signal and the at least one second source signal are the same.

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Abstract

The present application relates to a driving method and a driving circuit for suppressing flicker of a display panel. The driving circuit includes a source driving circuit and a common voltage generating circuit. The driving method includes driving the source driving circuit to generate at least one first source signal corresponding to at least one first pixel of a first scan line and at least one second source signal corresponding to at least one second pixel of a second scan line. The common voltage generating circuit generates at least one common voltage. When the at least one first pixel and the at least one second pixel display the same gray scale image, the at least one first source signal is not equal to the at least one second source signal, or a first common voltage and a second common voltage generated by the common voltage generating circuit are not the same.
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