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Shift register, gate electrode integrated drive circuit and display device

A shift register and gate technology, applied in static memory, digital memory information, instruments, etc., can solve problems such as shift registers are prone to failure

Active Publication Date: 2015-12-30
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a shift register, a gate integrated drive circuit and a display device to solve the problem that the existing shift register is prone to failure when working for a long time

Method used

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  • Shift register, gate electrode integrated drive circuit and display device
  • Shift register, gate electrode integrated drive circuit and display device
  • Shift register, gate electrode integrated drive circuit and display device

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Embodiment Construction

[0067] The specific implementation manners of a shift register, a gate driving circuit and a display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0068] An embodiment of the present invention provides a shift register, such as figure 2 As shown, it includes: an output control unit 100, a first pull-down unit 200, a second pull-down unit 300, and a pull-down control unit 400; wherein,

[0069] The control terminal of the output control unit 100 is connected to the signal input terminal Gout(n-1) through the first node PU, the input terminal is connected to the first clock signal terminal CLK, and the output terminal is connected to the signal output terminal Gout(n); the output control unit 100 is used to pull up the potential of the first node PU when the signal input terminal Gout(n-1) inputs a high level, and when the first clock signal terminal CLK inputs a high level and the fi...

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Abstract

The invention discloses a shift register, a gate electrode integrated drive circuit and a display device. The shift register is characterized by further comprising a compensation signal end, wherein the compensation signal end serves as a low level signal end in a scanning period, and serves as an up level signal end in a non-scanning period; the compensation signal end is connected with the first output end of a first pull-down unit and the second output end of a pull-down control unit; the first control end of the first pull-down unit is connected with a second clock signal end; the third control end of the pull-down control unit is connected with a first clock signal end. Therefore, forward drifting, generated in the scanning period, of the threshold voltage between the first control end and the first output end of the first pull-down unit, and negative drifting, generated in the non-scanning period, of the threshold voltage between the first control end and the first output end of the first pull-down unit cancel each other; likewise, forward drifting, generated in the scanning period, of the threshold voltage between the third control end and the second output end of the pull-down control unit, and negative drifting, generated in the non-scanning period, of the threshold voltage between the third control end and the second output end of the pull-down control unit cancel each other, that is, the problem that the shift register has high probability of failures caused by drifting of threshold voltage is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register, a gate integrated drive circuit and a display device. Background technique [0002] In recent years, liquid crystal display (Liquid Crystal Display, LCD) has the advantages of light and thin appearance and low power consumption, so it is widely used in various electronic products, and gate integrated drive circuit (Gate-driveronArray, GOA) technology is the development of liquid crystal display field. A rapid technology branch, the basic concept is to integrate the shift register on the pixel array substrate, and realize the scanning drive of the liquid crystal panel by controlling the thin film transistor (ThinFilmTransistor, TFT) on the shift register, and the GOA can be combined with the pixel array The substrate is completed under the same process technology, which saves the production cost. Compared with the traditional chip-on-film (ChiponFilm, COF) and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G11C19/28
CPCG09G3/3677G09G2300/0408G09G2310/0286G11C19/28G09G3/3648G09G2300/0426G09G2310/08
Inventor 韩明夫韩承佑商广良金志河姚星郑皓亮董学田正牧林允植
Owner BOE TECH GRP CO LTD
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