A goa circuit embedded touch display panel

A touch display panel, embedded technology, applied in the direction of static indicator, electrical digital data processing, input/output process of data processing, etc., can solve the problems of GOA circuit level transmission failure, abnormal display, insufficient circuit maintenance ability, etc. , to reduce the risk of stage transmission failure, stabilize the GOA circuit, and reduce the lack of maintenance capability.

Active Publication Date: 2020-03-17
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the GOA circuit is in the holding state, it is easy to have the problem of insufficient circuit maintenance ability, which makes the GOA circuit level pass failure, and abnormal display occurs.

Method used

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  • A goa circuit embedded touch display panel
  • A goa circuit embedded touch display panel
  • A goa circuit embedded touch display panel

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0040] see figure 1 , figure 1 The circuit diagram of the GOA circuit provided for the embodiment of the present invention. Such as figure 1 As shown, the embodiment of the present invention provides a GOA circuit, including multi-level cascaded GOA units, and the nth level GOA unit includes: forward and reverse scanning control module 101, node control module 102, output module 103, output control module 104 and suppression module 105 . It should be no...

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Abstract

The invention relates to a GOA circuit and an embedded touch-control display panel. By arranging a restraining module (105) at each level of GOA unit, when the embedded touch-control display panel enters a signal pause and proceeds a touch control scanning stage, a second node control signal at a second node is pulled down to constant-voltage low level. Thus, the risk of level transmission failure due to the maintaining ability insufficiency of the GOA circuit during TP pause is lowered, and the GOA circuit becomes stabler.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a GOA circuit and an embedded touch display panel. Background technique [0002] GOA (Gate Driver on Array) technology is the array substrate row drive technology, which uses the thin film transistor liquid crystal display array process to manufacture the gate scanning drive circuit on the thin film transistor array substrate to realize the driving method of progressive scanning. [0003] At present, with the mature development of the integrated touch panel technology, the display panel will choose to embed the touch display panel. In the embedded touch display panel, because the display refresh time is separated, the touch scanning is done in the free time (TP pause time), so the working state of the GOA circuit of the panel is no longer continuous, but every scan A certain number of stages, keep for a period of time, continue to scan. In this way, when the GOA circuit is...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G09G3/36G06F3/041
CPCG06F3/0412G09G3/3677
Inventor龚强
OwnerWUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD