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goa circuit and display panel

A circuit and potential technology, applied in the field of GOA circuits and display panels, can solve problems such as abnormal display and Gate signal distortion, and achieve the effect of improving stability

Active Publication Date: 2021-12-03
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • 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, anti-leakage 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 the GOA circuit diagram of the embodiment of the present invention, the GOA circuit includes cascaded multi-level GOA units, each level of GOA unit includes: positive and negative scanning module 100, reset module 200, pull-up module 300, pull-down module 400, anti-leakage module 500, a voltage stabilizing module 600 and a signal control module 700.

[0043] Wherein, the positive and negative scanning module 100 includes a first tran...

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Abstract

The embodiment of the present application provides a GOA circuit and a display panel. In the GOA circuit, a tenth transistor T10 is added to the pull-up module of each level of GOA unit, an eleventh transistor T11 is added to the pull-down module, and the tenth transistor T1 Both the drain of the transistor and the drain T11 of the eleventh transistor are electrically connected to the cascade terminal CS(N), and the signal of the cascade terminal CS(N) is used as the cascade signal of the next-level GOA unit. Since the load of the CS(N) signal at the stage transmission end is extremely small compared to the G(N) signal at the output end, although the G(N) signal at the output end is distorted, the output waveform of the CS(N) signal at the stage transmission end There is basically no distortion, and the CS(N) signal at the stage transmission end replaces the G(N) signal at the output end as the stage transmission signal of the next-level GOA unit, which will not affect the first node Qb and the pull-up node Qa of the next-level GOA unit The charging improves the stability of the GOA circuit cascade.

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 Patents(China)
IPC IPC(8): G09G3/20
CPCG09G3/20
Inventor 陶健
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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