Shifting register and gate drive device

A technology of shift register and control pole, applied in static memory, digital memory information, instruments, etc., can solve the problems of threshold voltage drift, affecting the discharge speed of pull-down transistors, etc., and achieve the effect of avoiding adverse effects

Active Publication Date: 2018-11-27
PEKING UNIV SHENZHEN GRADUATE SCHOOL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the pull-down transistor works under voltage stress for a long time, threshold voltage drift occurs, which affects the discharge speed of the pull-down transistor

Method used

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  • Shifting register and gate drive device
  • Shifting register and gate drive device
  • Shifting register and gate drive device

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Embodiment Construction

[0028] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings, which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the application can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the application. It is to be understood that other embodiments may be utilized and structural or logical modifications may be made without departing from the scope of the present application. Accordingly, the following detailed description is not limiting, and the scope of the application is defined by the appended claims.

[0029] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description. The connection between the units in the drawings is only for the conv...

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Abstract

The application discloses a shifting register unit. The shifting register unit comprises an input module, an output and low level maintenance module, a reverse phase module and an inhibiting module, wherein the input module is configured to receive input signals; the output and low level maintenance module is coupled to the output end of the input module, and under the influence of first clock signals, the input signals are transmitted to the output end of the shifting register unit; the reverse phase module is coupled between the input module and the output and low level maintenance module, and the reverse phase module is configured to supply discharging and/or low level maintenance control signals for the output and low level maintenance module based on the input signals; the inhibitingmodule is coupled between the output end of the input module and the output end of the reverse phase module, and the inhibiting module is configured to partly or entirely inhibit the influence of first clock signal jump on the output of the shifting register unit when the output end of the register unit does not output active level.

Description

technical field [0001] The present application belongs to the field of information display, and in particular relates to a shift register for a pixel circuit, a gate driving device and a corresponding method. Background technique [0002] With the development of display technology, the performance requirements of TFT displays are getting higher and higher. In order to precisely control the pixel circuit of a TFT display, a matching driving circuit is often required, and in order to realize a narrow frame display design, both the gate driving circuit and the pixel circuit are realized by TFT transistors. [0003] In a conventional gate drive circuit, the gate of the drive transistor for output goes through a "precharge" and "bootstrap" phase successively to ensure that the output of the circuit responds quickly. In this gate drive circuit, the drive transistor is coupled to a relatively high frequency clock to implement the circuit's functions. However, the jump of the cloc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3266G09G3/32G11C19/28
CPCG09G3/32G09G3/3266G09G2310/0286G11C19/28
Inventor 张盛东马一华廖聪维钟德镇乔艳冰李海波
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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