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Scan driving circuit, display panel and display device

A scanning drive circuit and electrical connection technology, applied to static indicators, instruments, etc., can solve problems such as screen display abnormalities, reduce the probability of characteristic drift, improve display abnormalities, and slow down aging effects

Active Publication Date: 2022-06-17
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current display panel may display abnormally when in use

Method used

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  • Scan driving circuit, display panel and display device
  • Scan driving circuit, display panel and display device
  • Scan driving circuit, display panel and display device

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Embodiment Construction

[0040] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application.

[0041] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the embodiments of this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0042] In order to better reflect the technical effects of the embodiments of the present application, before describing the technical solutions of the embodiments of the present application, the problem finding process of the prior art is first described...

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PUM

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Abstract

Embodiments of the present application provide a scan driving circuit, a display panel, and a display device, which relate to the display field and can improve display abnormalities caused by transistor characteristic drift in the scan driving circuit. The scanning driving circuit includes a plurality of cascaded shift register units, and each shift register unit includes: a first transistor, the first end of the first transistor is electrically connected to the first clock signal end, and the second end of the first transistor Electrically connected to the output terminal of the shift register unit of the current stage, the control terminal of the first transistor is electrically connected to the first node, and the first clock signal terminal is used to provide the first clock signal composed of high-level VGH and low-level VGL ; the second transistor, the first end of the second transistor is electrically connected to the first node, the second end of the second transistor is electrically connected to the first voltage end, and the control end of the second transistor is electrically connected to the shift register unit of the current stage The first input terminal and the first voltage terminal are used to provide a first voltage VA, where VA<VGH.

Description

technical field [0001] The present application relates to the field of display technology, and in particular, to a scan driving circuit, a display panel and a display device. Background technique [0002] The display panel has a scan drive circuit for improving the periodic scan signal. The display panel performs line-by-line scan under the action of the scan signal, and writes the data voltage written on the data into the corresponding sub-pixels during the scanning process. In order to realize the screen display function. However, when the current display panel is in use, abnormal screen display may occur. SUMMARY OF THE INVENTION [0003] Embodiments of the present application provide a scan driving circuit, a display panel and a display device, which can improve display abnormalities caused by transistor characteristic drift in the scan driving circuit. [0004] In a first aspect, a scan driving circuit is provided, comprising a plurality of shift register units conn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208G09G3/36
CPCG09G3/3208G09G3/3677
Inventor 谢亚辉刘剑肖玲王志杰赖国昌孟凡清
Owner XIAMEN TIANMA MICRO ELECTRONICS