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 accelerating device aging and achieve the effects of prolonging device life, reducing threshold voltage shift, reducing frame space and cost

Active Publication Date: 2021-06-01
TCL 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

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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 4 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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Abstract

This application discloses a GOA circuit and a display panel. The GOA circuit includes multi-level cascaded GOA units. Each GOA unit includes: a pull-up control module, a pull-up module, a download module, a pull-down maintenance module, a pull-down module and an automatic The pull-up module of the GOA circuit is configured as two thin-film transistors, which input different oscillation signals and have independent output ports, which can work alternately to reduce the stress time of a single thin-film transistor, reduce the threshold voltage shift, and prolong Device life; at the same time, the drive signal directly uses the oscillation signal in the current circuit, does not occupy the layout space, and further reduces the frame space and cost.

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 The timing diagram of GOA circuit driving is shown. [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 co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/3266
CPCG09G3/3677G09G3/3266G09G2300/0408G09G2310/08G09G2320/043G09G2310/0286G09G2330/045
Inventor 吕晓文
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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