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GOA drive circuit and liquid crystal display device

A technology of liquid crystal display device and driving circuit, applied in static indicators, instruments, etc., can solve the problem of afterimage remaining and affect user experience, and achieve the effect of improving afterimage problem.

Inactive Publication Date: 2017-01-11
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, after the liquid crystal display device is turned off, since there are residual charges in the thin film transistors of the pixel structure of the liquid crystal, an afterimage will be formed after the shutdown, which will affect the user experience.

Method used

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  • GOA drive circuit and liquid crystal display device
  • GOA drive circuit and liquid crystal display device
  • GOA drive circuit and liquid crystal display device

Examples

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Embodiment Construction

[0029] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only 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.

[0030] In the figures, blocks with similar structures are denoted by the same reference numerals.

[0031] The GOA driving circuit includes a plurality of cascaded GOA units, and outputs gate driving signals to the Nth level horizontal scanning lines in the display area according to the Nth level of GOA units. Wherein the plurality of cascaded GOA units include sequentially cascaded first-level GOA units, multiple intermediate-level GOA units, and an e...

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PUM

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Abstract

The invention discloses a GOA drive circuit and liquid crystal display device,which comprises a plurality of cascaded GOA units outputting the gate-drive signals to the Nth horizontal scanning line according to the Nth GOA units;the Nth GOA units comprise a pull-up module,a pull-down module,a pull-up control module,a pull-down maintenance module,a bootstrap capacitor module and a reset module;the pull-up module,the pull-down module,the pull-down maintenance module and the the bootstrap capacitor module respectively are connected to the Nth level gate signal point Qn and the Nth horizontal scanning line;the pull-up control module is connected to the Nth gate signal point Qn;the reset module comprises a first end,a second end,and a control end and the first end is connected to horizontal scanning line Gn.The invention can remove the blur when the liquid crystal display device is turned off.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a GOA driving circuit and a liquid crystal display device. Background technique [0002] 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 row scanning drive signal circuit on the array substrate to realize the driving method of progressive scanning of the pixel structure. [0003] In the prior art, after the liquid crystal display device is turned off, since there are residual charges in the thin film transistors of the pixel structure of the liquid crystal, an afterimage will be formed after the shutdown, affecting user experience. [0004] Therefore, there are defects in the prior art, and improvement is badly needed. Contents of the invention [0005] The object of the present invention is to provide an improved GOA driving circuit and a liquid crystal di...

Claims

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Application Information

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