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Shift register, gate integrated drive circuit, display panel and display device

A technology of shift register and scan drive, applied in static memory, digital memory information, instruments, etc., can solve the problems of shift register charge accumulation and reliability reduction, so as to improve performance, eliminate after-image after shutdown, and improve reliability degree of effect

Active Publication Date: 2020-06-12
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an operation will cause the charge accumulation inside the shift register to put its corresponding transistor in a long-term load state, thereby reducing its reliability.

Method used

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

Examples

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Embodiment Construction

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0040] Such as Figure 1a As shown, an embodiment of the present invention provides a shift register, which includes: an input module 10, an output module 20, a reset module 30, and a discharge control module.

[0041] The input module 10 is connected between the signal input terminal Input and the pull-up node PU, and is used for providing the input signal to the pull-up node PU under the control of the input signal of the signal input terminal Input.

[0042] The output module 20 is connected between the pull-up node PU, the clock signal...

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PUM

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Abstract

Embodiments of the present disclosure provide a shift register, a gate driving circuit, a display panel and a display apparatus. The shift register comprises an inputting sub-circuit, an outputting sub-circuit, a resetting sub-circuit, and a first discharging controlling sub-circuit. The first discharging controlling sub-circuit is coupled to a first controlling signal inputting terminal, a second controlling signal inputting terminal and a signal outputting terminal, and configured to provide a second controlling signal from the second controlling signal inputting terminal to the signal outputting terminal under a control of a first controlling signal from the first controlling signal inputting terminal. The signal outputting terminal is set to a high level by inputting the first controlling signal and the second controlling signal to the shift register.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a shift register, a gate integrated drive circuit using the shift register, a display panel and a display device. Background technique [0002] With the development of optical technology and semiconductor technology, represented by Gate Driver on Array (GOA) technology, GOA technology is used to integrate the gate drive circuit in the peripheral area of ​​the display substrate. The gates of the switching elements in the pixel area provide gate scanning signals to turn on the switching elements row by row to realize the input of data signals of the pixel units. [0003] In order to solve the afterimage problem on the shutdown pixel area, the display usually turns on the Xao (Output All-on) function after shutdown, that is, the VGL and VGH of the PCB section are shorted together, and all gate lines are set to high level , the switching elements of all the pixels in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G11C19/28
CPCG09G3/3677G09G2310/0286G09G2320/0257G11C19/28G09G3/20G09G2300/0408G09G2310/0267G09G2310/061G11C19/287
Inventor 杜瑞芳刘海峰马小叶
Owner BOE TECH GRP CO LTD
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