G0A circuit and display panel

A G0A, circuit technology, applied in static indicators, instruments, etc., can solve the problem of afterimage on the display panel

Inactive Publication Date: 2020-02-11
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a GOA circuit to alleviate the technical problem of afterimages in the existing display panel when abnormal power failure occurs

Method used

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  • G0A circuit and display panel
  • G0A circuit and display panel
  • G0A circuit and display panel

Examples

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Embodiment Construction

[0028] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, elements with similar structures are denoted by the same reference numerals.

[0029] The invention provides a GOA circuit to alleviate the technical problem of afterimage in the prior display panel when abnormal power is cut off.

[0030] Such as figure 1 As shown, the existing GOA circuit includes m cascaded GOA units, and the nth level GOA unit includes: forward and reverse scan control module 101, node signal control module 102, output co...

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PUM

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Abstract

The invention provides a G0A circuit and a display panel. The G0A circuit comprises m cascaded GOA units, and the nth GOA unit comprises a forward and reverse scanning control module, a node signal control module, an output control module, a pull-up module, a first pull-down module and a potential control module. The node signal control module is used for controlling the GOA circuit to output a low-potential gate drive signal and comprises a first node, and the first node is a gate signal control node of the node signal control module; the pull-up module is used for controlling the GOA circuitto output a high-potential gate drive signal; the first pull-down module is used for pulling down the potential of the gate drive signal of the current stage and is connected with the node signal control module through a second node, and the second node is a gate signal control node of the first pull-down module; the potential control module is connected with the node signal control module through the first node and used for controlling the first node to be at a low potential when the display panel is powered off abnormally. According to the invention, ghosting of the display panel during power failure is eliminated.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a GOA circuit and a display panel. Background technique [0002] Existing GOA circuits such as figure 1 As shown, it includes forward and reverse scanning control module 101, node signal control module 102, output control module 103, pull-up module 104, first pull-down module 105, second pull-down module 107, third pull-down module 108, fourth pull-down module module 109 , a voltage stabilizing module 110 . Each module includes a transistor, and each transistor is connected as shown in the figure. [0003] When the display panel enters the black screen wake-up stage from the black screen, the fifth transistor T5 and the eighth transistor T8 are turned off, and under the action of the first high-potential global signal Gas1, the seventh transistor T7 is turned on, and the low-potential signal VGL is sent to the point P. The six transistors T6 are turned on to control the GOA c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G09G2310/0264
Inventor 赵莽
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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