Shifting register circuit and driving method thereof as well as gate driver and display panel

A shift register and circuit technology, applied in the fields of shift register circuits and their driving, display panels, display devices, and gate drivers, can solve problems such as shortened lifespan, transistor threshold voltage drift, abnormal gate driving signals, etc.

Active Publication Date: 2018-06-22
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some existing gate drivers, one or more transistors in the shift register cell may be constantly DC-biased during operation, causing threshold voltage shifts and shortened lifetimes of said transistors
This can further lead to abnormalities in the generated gate drive signal

Method used

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  • Shifting register circuit and driving method thereof as well as gate driver and display panel
  • Shifting register circuit and driving method thereof as well as gate driver and display panel
  • Shifting register circuit and driving method thereof as well as gate driver and display panel

Examples

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Embodiment Construction

[0026] It will be understood that although the terms first, second, third etc. may be used herein to describe various elements, components and / or sections, these elements, components and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component or section from another element, component or section. Thus, a first element, component or section discussed below could be termed a second element, component or section without departing from the teachings of the present invention.

[0027] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will be further understood that the terms "comprising" and / or "comprising" when used in this specification specify the presence of stated features, in...

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PUM

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Abstract

The invention discloses a shifting register circuit, comprising an input end, a reset terminal, a first scanning voltage end, a second scanning voltage end, a first reference voltage end, a second reference voltage end, a clock end, an output end, an input circuit, a first control circuit, a second control circuit and an output circuit. The first control circuit is configured to respond to a second node positioned at an effective potential so as to supply a second reference voltage, applied to the second reference voltage end, to a first node and enable the second reference voltage end to be connected with the output end. The second control circuit is configured respond to a third node positioned at an effective potential so as to supply a first reference voltage, applied to the first reference voltage end, to the first node and cause the first reference voltage end to be connected with the output end. The invention also discloses a driving method of the shifting register circuit, a gate driver, a display panel and a display device.

Description

technical field [0001] The present invention relates to the generation of gate driving signals, in particular to a shift register circuit and its driving method, a gate driver, a display panel and a display device. Background technique [0002] A gate driver including a plurality of cascaded shift register cells is operable to generate and supply gate drive signals to a pixel array of a display panel. In some existing gate drivers, one or more transistors in the shift register cell may be constantly DC-biased during operation, causing threshold voltage shifts and shortened lifetimes of the transistors. This can further cause abnormalities in the generated gate drive signals. Contents of the invention [0003] It would be advantageous to provide a mechanism which alleviates, alleviates or eliminates at least one of the above problems. [0004] According to one aspect of the present invention, there is provided a shift register circuit, comprising: an input terminal operab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C19/28G09G3/20G09G3/3266G09G3/36
CPCG09G3/20G09G3/3266G09G3/3674G11C19/28G09G2310/0286G09G3/3677G09G2320/045G09G2310/061G09G2310/08G11C19/287
Inventor 薛伟李红敏董职福唐锋景
Owner BOE TECH GRP CO LTD
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