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GOA circuit and display panel

A circuit and potential technology, applied in the field of GOA circuit and display panel, can solve the problem of unstable output of GOA circuit, and achieve the effect that is conducive to stability

Pending Publication Date: 2022-01-04
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a GOA circuit and a display panel to solve the technical problem of unstable output of the GOA circuit in the prior art

Method used

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the 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] The transistors used in all embodiments of this application can be thin film transistors or field effect transistors or other devices with the same characteristics. Since the source and drain of the transistors used here are symmetrical, their source and drain can be interchanged. of. In the embodiment of the present application, in order to distinguish the two poles of the transistor except the gate, one pole is called the source, and the other pole is called the drain. According to th...

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Abstract

The embodiment of the invention provides a GOA circuit and a display panel. A compensation module is adopted to detect the threshold voltage of the switch thin film transistor in the random logic address selection module in the shutdown stage, and then the detected threshold voltage is compensated to the previous level transmission signal; therefore, the influence of threshold voltage offset of a switching thin film transistor in the random logic address selection module on the charging rate of the node Q can be avoided, the transmission capability of the thin film transistor cannot be reduced, and the output stability of the GOA circuit is further facilitated.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a GOA circuit and a display panel. Background technique [0002] Array substrate gate drive technology (Gate Driver Array, referred to as GOA), is to integrate the gate drive circuit on the array substrate of the display panel to realize the driving method of progressive scanning, so that the gate drive circuit part can be saved, and it has the advantages of The advantages of reducing production cost and realizing narrow bezel design of the panel are used for various displays. [0003] Wherein, in the random detection type GOA circuit, the node M that maintains the gate voltage of the switching thin film transistor in the random logic addressing module maintains a high potential most of the time. Studies have shown that when the thin film transistor is turned on most of the time, the thin film transistor will be forward biased, causing the threshold voltage to be posi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20
Inventor 薛炎
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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