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GOA circuit and display device

A circuit and low-voltage technology, used in static indicators, instruments, etc., can solve problems such as uneconomical board space, and achieve the effect of saving board space, reducing power consumption, and reducing power consumption

Active Publication Date: 2017-05-10
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] With the pursuit of narrow bezel and bezel-less visual effects, this design is very uneconomical in terms of board space

Method used

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  • GOA circuit and display device

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] In order to meet the consumer's pursuit of narrow bezel or even bezel-less visual effects, the LCD gate side drive must be implemented using GOA technology. At the same time, it poses a great challenge for GOA to occupy the panel gate side space. In order to ensure the GOA circuit drive On the premise of reducing the space of the GOA circuit, the present application proposes a method for efficiently utilizing the pull-down sustain unit.

[0031] figure 2 is a schematic diagram showing the connection structure of GOA units according to the present invention.

[0032] refer to figure 2 , the GOA circuit includes a plurality of GOA units cascaded. Taking the nth level GOA unit as an example, the nth level GOA unit includes a pull-up control unit 11, a pull-up unit 12, a pull-down unit 13, and a pull-down maintenance unit 14, and the pull-down maintenance unit 14 includes a pull-down maintenance module 141, a first pull-down module 142 and the second pull-down module 1...

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PUM

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Abstract

The invention provides a GOA circuit and a display device. The GOA circuit comprises cascaded GOA units, wherein each GOA unit comprises a pull-up control unit, a pull-up unit, a pull-down unit and a pull-down maintenance unit; and each pull-down maintenance unit comprises a pull-down maintenance module, a first pull-down module and a second pull-down module. Every two adjacent GOA units are gathered into one group, wherein by virtue of the pull-down maintenance module of the superior GOA unit, the first pull-down module in the superior GOA unit and the second pull-down module in the subordinate GOA unit are controlled so as to keep potentials of grid signal points and horizontal scanning signals of the superior GOA unit and the subordinate GOA unit at low potentials, and by virtue of the pull-down maintenance module of the subordinate GOA unit, the first pull-down module in the subordinate GOA unit and the second pull-down module in the superior GOA unit are controlled so as to keep potentials of grid signal points and horizontal scanning signals of the subordinate GOA unit and the superior GOA unit at low potentials. The invention can diminish an occupied space of the GOA circuit and can bring about benefits for the implementation of a narrow-bezel display panel.

Description

technical field [0001] The invention relates to a GOA circuit for flat panel display and a display device using the GOA circuit. Background technique [0002] Liquid crystal displays have become display devices for mobile communication equipment, PCs, TVs, etc. due to their advantages of high display quality, low price, and portability. Currently, the commonly used panel drive technology for TV liquid crystal displays tends to adopt GOA technology. GOA technology can simplify the manufacturing process of flat panel display panels, save the bonding process in the horizontal scanning line direction, increase production capacity, and reduce product costs. At the same time, the integration level of the display panel can be improved to make it more suitable for making display products with narrow borders or borderless, so as to meet the visual pursuit of modern people. [0003] GOA technology, that is, Gate Driver on Array technology, is to use the existing thin-film transistor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 李文英陈书志
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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