GOA circuit and display panel

A circuit and normal display technology, applied to static indicators, instruments, etc., can solve problems such as Gate signal distortion and abnormal display

Active Publication Date: 2020-06-23
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of abnormal display of the current GOA circuit due to the distortion of the Gate signal, the embodiment of the present application provides a GOA circuit. The GOA circuit includes a plurality of cascaded GOA units. The GOA units at each stage include: positive and negative Scanning module 100, reset module 200, pull-up module 300, pull-down module 400, voltage stabilizing module 500, leakage prevention module 500, voltage stabilizing module 600 and signal control module 700

Method used

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0042] refer to Figure 4 , Figure 4 It is a GOA circuit diagram of an embodiment of the present invention, the GOA circuit includes cascaded multi-level GOA units, and each level of GOA units includes: positive and negative scanning module 100, reset module 200, pull-up module 300, pull-down module 400, voltage stabilization module 500 , an anti-leakage module 500 , a voltage stabilizing module 600 and a signal control module 700 .

[0043] Wherein, the positive and negative...

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Abstract

The embodiment of the invention provides a GOA circuit and a display panel. According to the GOA circuit, a tenth transistor T10 is added to a pull-up module of each stage of GOA unit, and an eleventhtransistor T11 is added to a pull-down module of each stage of GOA unit. And the drain electrode of the tenth transistor T1 and the drain electrode T11 of the eleventh transistor T1 are electricallyconnected with a stage transmission end CS (N), and a stage transmission end CS (N) signal is used as a stage transmission signal of the next stage of GOA unit. Compared with an output end G (N) signal, the signal load of the stage transmission end CS (N) is extremely small; therefore, signals of the output end G (N) are distorted; however, the output waveform of the cascade transmission end CS (N) signal is basically not distorted, the cascade transmission end CS (N) signal replaces the output end G (N) signal to serve as the cascade transmission signal of the GOA unit of the next stage, charging of the first node Qb and the pull-up node Qa of the GOA unit of the next stage is not affected, and the cascade stability of the GOA circuit is improved.

Description

technical field [0001] The embodiments of the present application relate to the field of display technology, and in particular to a GOA circuit and a display panel. Background technique [0002] GOA (Gate Driver On Array) technology integrates the gate drive circuit of the display panel on the glass substrate to form a scan drive for the display panel. GOA technology can reduce the bonding process of external ICs, reduce product costs, and is more suitable for making display products with narrow borders or no borders. [0003] The existing GOA circuit includes a plurality of cascaded GOA units, and each level of GOA units corresponds to driving one level of horizontal scanning lines. Each level of GOA unit mainly includes a pull-up circuit, a pull-up control circuit, a pull-down circuit and a pull-down maintenance circuit. The pull-up circuit is mainly responsible for outputting the clock signal as a gate signal, that is, the Gate signal; the pull-up control circuit is res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20
Inventor 陶健
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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