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Display device and gate driver

A technology for display devices and driving lines, which is applied in static indicators, instruments, static memories, etc., can solve the problems of flickering of the display screen, leakage current generated by pixel circuits and data lines, etc., and achieve the effect of preventing leakage current.

Active Publication Date: 2019-10-25
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the display device stops updating the display image, due to the low voltage of the data line, a leakage current will be generated between the pixel circuit and the data line
At this time, the grayscale brightness displayed by the pixel circuit will gradually change due to the leakage current, causing the display screen to produce flicker that can be detected by the human eye.

Method used

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Embodiment Construction

[0079] Embodiments of the disclosure will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar elements or method flows.

[0080] figure 1 It is a simplified functional block diagram of the display device 100 according to an embodiment of the present disclosure. The display device 100 includes a control circuit 110 , a source driver 120 , a gate driver 130 , an anti-leakage circuit 140 and a plurality of pixel circuits 150 . The display device 100 further includes a plurality of vertical signal lines VL[ 1 ]˜VL[x] and a plurality of horizontal signal lines HL[ 1 ]˜HL[y]. A plurality of pixel circuits 150 are respectively disposed at intersections of vertical signal lines VL[ 1 ]˜VL[x] and horizontal signal lines HL[ 1 ]˜HL[y]. The source driver 120 and the gate driver 130 are used to drive the pixel circuit 150 through the vertical signal lines VL[ 1 ]˜VL[x] and the horizontal signal lines...

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Abstract

A display device and a gate driver are provided. The display device includes a plurality of vertical driving lines, and further includes a plurality of switching circuits and a plurality of shift registers. The plurality of switching circuits are correspondingly coupled to the plurality of vertical driving lines for receiving at least one control signal. The plurality of shift registers include alast-stage shift register, wherein the last-stage shift register is used to output at least one control signal. The plurality of switching circuits are configured to set a first portion of the plurality of vertical driving lines to have a first voltage level and a second portion of the plurality of vertical driving lines to have a second voltage level according to at least one control signal in afirst period. The plurality of switching circuits are configured to set the second portion of the vertical driving lines to have a first voltage level and the first portion of the vertical driving lines to have a second voltage level in a second period.

Description

technical field [0001] The disclosure document relates to a display device and a gate driver, in particular to a display device capable of preventing pixel leakage. Background technique [0002] When a current mainstream mobile device continues to display a static image (for example, continuously displays one of the desktop pages), the display device of the mobile device will temporarily stop updating the display image to reduce power consumption. However, when the display device stops updating the display image, due to the low voltage of the data line, a leakage current will be generated between the pixel circuit and the data line. At this time, the brightness of the gray scale displayed by the pixel circuit will gradually change due to the leakage current, so that the display screen will produce flicker that can be detected by human eyes. Contents of the invention [0003] The disclosure document provides a display device. The display device includes a plurality of vert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G11C19/28
CPCG09G3/3677G11C19/28G09G2310/0286
Inventor 杨创丞张哲嘉李明贤锺俊甫
Owner AU OPTRONICS CORP
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