Shifting register and display device

A shift register, pull node technology, applied in static memory, digital memory information, instruments, etc., can solve problems such as abnormal pull-down node potential and abnormal shift register signal.

Active Publication Date: 2015-06-24
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a shift register and a display device to solve the problem that in the existing shift register, the potential of the pull-down node is controlled by the potential of the pull-up node. Fluctuations in the potential may cause the potential of the pull-down node to be abnormal, resulting in an abnormal problem in the signal output by the shift register

Method used

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  • Shifting register and display device

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Embodiment Construction

[0023] A shift register and a display device provided by an embodiment of the present invention use different modules in the shift register to independently control the potential of the pull-up node and the potential of the pull-down node, so that the potential of the pull-down node is not affected by the pull-up node. The influence of the potential of the pull-up node avoids that when the potential of the pull-up node fluctuates, the potential of the pull-down node is abnormal, resulting in an abnormal problem in the signal output by the shift register.

[0024] The specific implementation manners of a shift register and a display device provided by the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0025] A kind of shift register provided by the embodiment of the present invention, such as figure 2 As shown, it includes a first pull-up module 21, a second pull-up module 22, a transmission module 23, a pull-down mo...

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PUM

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Abstract

The embodiment of the invention provides a shifting register and a display device to solve the problems that according to an existing shifting register, due to the fact that the electric potential of a pull-down node is limited by the electric potential of a pull-up node, once the electric potential of the pull-up node fluctuates, the electric potential of the pull-down node is probably abnormal, and consequently signals output by the shifting register can be abnormal. According to the shifting register, the electric potential of the pull-up node is controlled through a first pull-up module and a pull-down module, the electric potential of the pull-down node is controlled through a second pull-up module and a pull-down node module, and therefore the electric potential of the pull-down node is prevented from being controlled by the electric potential of the pull-up node, and accordingly, the electric potential of the pull-down node is prevented from being affected by the electric potential of the pull-up node.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register and a display device. Background technique [0002] The liquid crystal display panel is composed of a two-dimensional liquid crystal pixel matrix. The driving device of the liquid crystal display panel includes a gate driving device and a data driving device. The data driving device latches and converts the input display data into analog signals in sequence, and scans the liquid crystal display in sequence. The data line of the panel; the gate drive device includes several shift registers, and the signal at the control signal output end of each stage shift register will be transmitted to the reset signal input end of the upper stage shift register and the next stage shift register. The control signal input terminal of the bit register. Each stage of the shift register converts the input clock signal into an on or off signal and outputs it from its control signa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G11C19/28
Inventor 王峥
Owner BOE TECH GRP CO LTD
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