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goa circuit, display panel and display device

A display panel and circuit technology, applied to static indicators, instruments, etc., can solve the problems of unstable Q point, lower GOA circuit stability, and low GOA circuit stability, and achieve the effect of improving stability

Active Publication Date: 2021-09-24
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

Most of the general 2Phase circuits will introduce the design of N-type thin film transistor inverters, but there is an obvious competitive relationship between inverters with pure N-type thin film transistor structures, which can easily lead to Q point instability and reduce the stability of the GOA circuit.
[0004] In the prior art, the stability of the GOA circuit of the display panel is not high

Method used

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  • goa circuit, display panel and display device

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Embodiment Construction

[0029] 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.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present application and simplifying...

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Abstract

The embodiment of the present application discloses a GOA circuit, a display panel, and a display device. The GOA circuit includes m cascaded GOA units, and the nth-level GOA unit includes: a first node signal control module; a first pull-down module; To the scanning control module; the second pull-down module, the second pull-down module includes a third thin film transistor, a fourth thin film transistor and a fifth thin film transistor, the input terminal of the third thin film transistor is connected to a constant voltage high potential signal, and the third thin film transistor The control end is connected to the second control signal, the output end of the third thin film transistor, the input end of the fourth thin film transistor, and the input end of the fifth thin film transistor are connected to each other, the output end of the fourth thin film transistor is connected to the second node, and the fifth thin film transistor is connected to the second node. The output end of the thin film transistor is connected to a constant voltage low potential signal. The application can improve the stability of the GOA circuit.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a GOA circuit, a display panel and a display device. Background technique [0002] At present, the liquid crystal display device has been widely used in various electronic products as a display component of electronic equipment, and the GOA circuit is an important component of the liquid crystal display device. Gate Driver On Array, referred to as GOA, is a technology that utilizes the existing thin film transistor liquid crystal display array process to fabricate the gate line scanning drive signal circuit on the array substrate to realize the drive mode of progressive scanning of the gate. [0003] Display panels based on low-temperature polysilicon (LTPS) technology can be divided into N-type thin film transistors, P-type thin film transistors, and C-type thin film transistors with both N-type thin film transistors and P-type thin film transistors according to the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G09G2300/0408G11C19/28G09G2310/0267G09G2300/0852
Inventor 田超
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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