Shift register, gate drive circuit and display panel

A shift register and gate connection technology, applied in static memory, digital memory information, instruments, etc., can solve problems such as limiting the application of gate drive circuits, affecting the stability of the output signal of the shift register, and output signal tailing

Active Publication Date: 2021-04-20
YUNGU GUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The display panel usually includes a gate drive circuit, and the gate drive circuit includes a plurality of cascaded shift registers. When the output signal of the existing shift register transitions from high level to lo...

Method used

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

Examples

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0025] As described in the background technology, when the output signal of the existing shift register jumps from high level to low level, two steps will appear on the falling edge of the output signal, and the output signal has a tail, which affects the shift register. The stability of the output signal limits the application of the gate drive circuit. The inventors have found through research that the reason for the above problems is that the shift register in the existing gate drive circuit usually includes a ...

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PUM

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Abstract

The embodiment of the invention discloses a shift register, a gate drive circuit and a display panel. The shift register comprises a first input module, a second input module, a first output module, a second output module, a first output control module and a second output control module. The first input module controls the potential of the first node according to the first starting signal and the first clock signal; the second input module controls the potential of a second node according to a second starting signal and the first clock signal, wherein the potential of the second starting signal is opposite to that of the first starting signal; the first output module comprises a first coupling unit, and the first coupling unit couples the potential of the third node according to the potential of the first output end when the potential of the first output end jumps; and the second output module comprises a second coupling unit, and the second coupling unit couples the potential of the fourth node according to the potential of the second output end when the potential of the second output end jumps.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular to a shift register, a gate driving circuit and a display panel. Background technique [0002] With the development of display technology, people have higher and higher requirements for the performance of the display panel. [0003] The display panel usually includes a gate drive circuit, and the gate drive circuit includes a plurality of cascaded shift registers. When the output signal of the existing shift register transitions from high level to low level, the falling edge of the output signal will be There are two steps, and there is tailing in the output signal, which affects the stability of the output signal of the shift register and limits the application of the gate drive circuit. Contents of the invention [0004] Embodiments of the present invention provide a shift register, a gate drive circuit, and a display panel to improve the smearing pro...

Claims

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Application Information

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IPC IPC(8): G09G3/20G11C19/28
CPCG11C19/28G09G3/20G09G3/3266G09G3/3677G09G2310/0267G09G2310/0286G09G2310/08G09G3/2092
Inventor 郭恩卿李俊峰盖翠丽王玲
Owner YUNGU GUAN TECH CO LTD
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