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GOA device and gate drive circuit

A device and gate signal technology, applied in the direction of instruments, static indicators, etc., can solve the problems of complex gate drive circuit structure, and achieve the effect of simplifying the structure and reducing the number

Pending Publication Date: 2020-07-31
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a GOA device and a gate drive circuit to solve the technical problem of complex structure of the gate drive circuit in the existing display panel

Method used

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  • GOA device and gate drive circuit

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Embodiment Construction

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the a...

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Abstract

The invention provides a GOA device and a gate drive circuit, the GOA device comprises at least two cascaded GOA units, and the GOA unit comprises a pull-up control unit, a bootstrap capacitor, a pull-up unit, a pull-down unit and a pull-down maintenance unit. The bootstrap capacitor, the pull-down unit and the pull-down maintenance unit are multiplexed, and the gate driving signals of the nth-stage GOA unit and the (n+1)th-stage GOA unit are simultaneously output in the first-stage GOA unit, so that the number of thin film transistors in the gate driving circuit is reduced, and the structureof the gate driving circuit is simplified.

Description

technical field [0001] The present application relates to the display field, in particular to a GOA device and a gate drive circuit. Background technique [0002] The gate drive on array (GOA) technology is to integrate the scanning line driving circuit on the array substrate of the liquid crystal panel, thereby reducing the product cost in terms of material cost and manufacturing process. [0003] With the development of technology in the display industry, users have higher and higher requirements for the appearance design of the display panel, such as the design of a narrow frame. A gate drive circuit is provided in the frame area of ​​the display panel, and the gate drive circuit includes n-level GOA units, and any level of GOA unit is provided with a plurality of thin film transistors, so that the frame area cannot be further reduced. [0004] At present, there is an urgent need for a gate driving circuit to solve the above technical problems. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G09G2310/0286G09G2300/0408G11C19/28
Inventor 徐志达姚晓慧金一坤
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD