GOA drive circuit and liquid crystal display device

A driving circuit, low voltage technology, applied in the field of liquid crystal display, to reduce the number of thin film transistors and avoid failures

Active Publication Date: 2017-02-22
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the GOA drive circuit uses a large number of thin film transistors, how to reduce the number of thin film transistors without affecting the function is a technical problem

Method used

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  • GOA drive circuit and liquid crystal display device

Examples

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Embodiment Construction

[0023] 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.

[0024] In the figures, blocks with similar structures are denoted by the same reference numerals.

[0025] Please refer to figure 1 , the GOA drive circuit, the GOA drive circuit includes a plurality of cascaded GOA units, and outputs a gate drive signal to the Nth level horizontal scan line Gn in the display area according to the Nth level GOA unit, and the Nth level GOA unit includes a pull-up A control module 101 , a pull-up module 102 , a pull-dow...

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PUM

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Abstract

The invention provides a GOA drive circuit and a liquid crystal display device. The GOA drive circuit comprises multiple cascaded GOA units. A gate drive signal is outputted to the Nth horizontal scanning line Gn of a display area according to the Nth GOA unit. The Nth GOA unit comprises a pull-up module, a pull-up control module, a pull-down maintenance module, a download module and a bootstrap capacitance module. The pull-up module, the pull-down maintenance module and the bootstrap capacitance module are electrically connected with the Nth gate signal point Qn and the Nth horizontal scanning line Gn. The pull-up control module and the download module are connected with the Nth gate signal point Qn. The GOA drive circuit and the liquid crystal display device have the beneficial effects of reducing the number of thin-film transistors.

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] With the development of technology, narrow borders are an inevitable trend. In the prior art, the GOA drive circuit uses a large number of thin film transistors, and how to reduce the number of thin film transistors without affecting the function is a technical problem. [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 li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G09G2300/0408G09G2300/0426G09G2310/0286G11C19/184G11C19/28G02F1/13306G09G2300/0809G09G2310/08
Inventor 吕晓文陈书志
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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