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GOA circuit and display panel

A circuit and electrode technology, which is applied in the field of liquid crystal display, can solve the problems of accelerated device aging, achieve the effects of reducing size, reducing heat generation, and improving stability and service life

Inactive Publication Date: 2021-10-12
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Heating is a fatal problem for GOA circuits, which will accelerate the aging of devices and may cause accidents

Method used

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  • GOA circuit and display panel
  • GOA circuit and display panel
  • GOA circuit and display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In the following, the technical solutions in the embodiments of the application will be clearly and completely described in conjunction with the drawings in the embodiments of the application, so as to illustrate and explain how the application uses technical means to solve the above-mentioned problems in the prior art. Apparently, the described embodiments are only part of, but not all of, the embodiments of the present application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts are within the protection scope of this application.

[0026] The following will combine Figure 3 to Figure 5 A GOA circuit provided in the embodiment of the present application is described in detail.

[0027] image 3 It is the structural frame diagram of the GOA circuit of this application. Such as image 3 As shown, the embodiment of the present application provides a GOA circuit, including multi-level c...

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PUM

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Abstract

The invention discloses a GOA circuit and a display panel. The GOA circuit comprises multiple stages of cascaded GOA units, each GOA unit comprises a pull-up control module, a pull-down maintenance module, a pull-down module, a bootstrap capacitor, a pull-up module and a download module. The GOA circuit uses an alternating current signal driving circuit with opposite high and low signal potentials in the pull-up module, a signal is pulled down for stress recovery in the blank time of the scanning signal, threshold voltage offset caused by high potential stress during display is reduced, the stability of the circuit is improved, and the service life of the circuit is prolonged.

Description

technical field [0001] The present application relates to the technical field of liquid crystal display, in particular to a GOA circuit and a display panel. Background technique [0002] With the improvement of the performance of thin film transistors (TFTs), the gate driver on array (GOA for short) technology has been widely used in panels. GOA technology can save driver IC (Gate IC), improve customer yield, and realize borderless design. [0003] Please also refer to Figure 1-Figure 2 ,in, figure 1 is the circuit diagram of the GOA circuit in the prior art, figure 2 for figure 1 Driving timing diagram of the shown GOA circuit. [0004] Such as figure 1 As shown, the main architecture of the existing GOA circuit includes: multi-level cascaded GOA units, wherein the nth level of GOA units controls the charging of the nth level of horizontal scanning lines, where n is a natural number. The nth level GOA unit includes: a pull-up control module 101 electrically conne...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3677G11C19/28G09G3/20G09G3/3266G09G2300/0408G09G2310/0286G09G2310/061G09G2310/08
Inventor 吕晓文
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD