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GOA circuit

A circuit and electrode technology, applied in the field of liquid crystal display, can solve the problems of charging liquid crystal display panel pixels, reducing the display quality of the liquid crystal display panel, etc., and achieve the effect of reducing parasitic capacitance and improving display quality

Active Publication Date: 2016-09-21
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of GOA circuit, to solve the existing GOA circuit because one end of the bootstrap capacitor is directly connected with the output end of the scanning signal of this stage, and then cause the liquid crystal display panel pixel charge insufficient, reduce the liquid crystal display panel Display quality technical issues

Method used

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Embodiment Construction

[0055] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0056] see figure 2 , is a schematic structural diagram of the first preferred embodiment of the GOA circuit of the present invention;

[0057] The GOA circuit in this preferred embodiment includes a pull-up control module 201 , a pull-up module 206 , a downlink module 203 , a pull-down module 205 , a pull-down maintenance module 202 , a bootstrap capacitor Cbt and a voltage regulator module 204 . The pull-up control module 201 is used to generate the scan level signal of the current level under the control of the upper level transmission signal ST(n-1); the pull-up module 206 is used to generate the scan level signal according to the scan level signal of the current level and the current level The clock signal CK (n) of the stage pulls up t...

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PUM

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Abstract

The invention provides a GOA circuit and a liquid crystal display panel. The GOA circuit comprises a pull-up control module, a pull-up module, a down-transmission module, a pull-down module, a pull-down maintenance module, a bootstrap capacitor and a voltage stabilizing module. According to the GOA circuit, the voltage stabilizing module is arranged, the output end of the voltage stabilizing module is connected with one end of the bootstrap capacitor, voltage stabilizing signals outputted by the output end of the voltage stabilizing module are consistent with scanning signals of the corresponding level, and the potential is enhanced by utilizing the voltage stabilizing signals outputted by the voltage stabilizing module so that the effect which is the same with that of the existing GOA circuit can be realized, parasitic capacitance of the output end of the scanning signals can be reduced and thus the display quality of the liquid crystal display panel can be improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a GOA circuit. Background technique [0002] Gate Driver On Array, referred to as GOA, is to manufacture a scan drive circuit on the array substrate of the existing thin-film transistor liquid crystal display panel to realize the drive mode of progressive scan of the scan lines. The structural schematic diagram of the existing GOA circuit is shown as figure 1 As shown, the GOA circuit includes a pull-up control module 101 , a pull-up module 104 , a downlink module 105 , a pull-down module 106 , a bootstrap capacitor 103 and a pull-down maintenance module 102 . [0003] One end of the bootstrap capacitor 103 is electrically connected to the output end of the pull-up control module 101 , and the other end of the bootstrap capacitor 103 is electrically connected to the output end of the scanning signal of the current stage. When outputting the scan signal of this st...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3677
Inventor 杜鹏
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD