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GOA circuit and display device

A circuit and control circuit technology, applied in static indicators, nonlinear optics, instruments, etc., can solve the problems of reducing product yield, failure, and scrapping of display panels, and achieve the effect of improving product yield

Inactive Publication Date: 2017-06-06
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

When a certain level of GOA unit in the GOA circuit fails, other levels of GOA units associated with this level of GOA unit will also fail, which will cause the entire display panel to fail to work normally and be scrapped, reducing the yield of the product

Method used

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  • GOA circuit and display device

Examples

Experimental program
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Embodiment Construction

[0028] In order for those skilled in the art to better understand the technical solution of the present invention, a GOA circuit and a display device provided by the present invention will be further described in detail below in conjunction with the drawings and specific embodiments. In the drawings, the same reference numerals are used to denote the same structures and regions throughout the specification and drawings.

[0029] Please also see figure 1 and figure 2 , figure 1 is a schematic diagram of the structure of each level of GOA unit in the GOA circuit of the prior art, figure 2 is a schematic structural diagram of a GOA circuit in the prior art. Such as figure 1 As shown, the circuit structure of each level of GOA unit in the GOA circuit of the prior art is the same, including a pull-up circuit 300, a pull-up control circuit 100, a pull-down circuit 200, a first pull-down maintenance circuit 400, and a second pull-down maintenance circuit. 500 and bootstrap cap...

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PUM

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Abstract

The invention discloses a GOA circuit and a display device. The GOA circuit comprises multiple cascaded GOA units and at least one repair GOA unit. The repair GOA unit is connected with a signal output line of an upper-level GOA unit of one abnormal GOA unit among the multiple cascaded GOA units, a signal output line of a lower-level GOA unit of the abnormal GOA unit and a signal output line of the abnormal GOA unit through a first repair wire, a second repair wire and a third repair wire. Besides the original cascaded GOA units, the repair GOA unit is additionally adopted to replace the abnormal GOA unit, so that the whole GOA circuit can output normally and a yield rate of products is improved. The invention also discloses the display device applying the GOA circuit.

Description

technical field [0001] The technical field of display of the present invention, in particular, relates to a GOA circuit and a display device. Background technique [0002] In an active display, the driving of the horizontal scanning lines of the display panel is mainly completed by the driver IC external to the panel, and the external driver IC controls the horizontal scanning lines on the display panel connected to the pixels of each level to charge and discharge step by step through the driving signal. The GOA technology, that is, the gate driver on array technology (Gate Driver on Array), can use the original process of the display panel to manufacture the driving circuit of the horizontal scanning line on the substrate around the display area, so that it can replace the external driving IC to complete the horizontal scanning line. scan line driver. GOA technology can simplify the manufacturing process of display panels, save the IC bonding process in the direction of ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G02F1/1362G02F1/1345
CPCG02F1/13454G02F1/136259G09G3/20G09G2300/0408G09G2310/0267G02F1/136263G09G3/3677G09G2330/08G09G2310/06G09G2310/08
Inventor 李文英周依芳江博仁
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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