A goa circuit and liquid crystal display

A liquid crystal display and circuit technology, which is applied in the field of liquid crystal display, can solve problems such as unfavorable liquid crystal display normal display and slow pull-down speed, and achieve the effects of fast and effective pull-down, accelerated pull-down speed, and improved response speed

Active Publication Date: 2019-08-02
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing GOA circuit generally uses an inverter to pull down the pull-down maintenance module, and the pull-down speed is slow, which is not conducive to the normal display of the LCD

Method used

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  • A goa circuit and liquid crystal display
  • A goa circuit and liquid crystal display
  • A goa circuit and liquid crystal display

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Embodiment Construction

[0014] In the specification and claims, certain words are used to refer to specific components. Those skilled in the art should understand that manufacturers may use different terms to refer to the same components. This specification and claims do not use differences in names as a way to distinguish components, but use differences in functions of components as a basis for distinction. The present invention will be described in detail below in conjunction with the drawings and embodiments.

[0015] figure 1 It is a schematic diagram of the structure of the GOA circuit of the embodiment of the present invention. Such as figure 1 As shown, the GOA circuit 10 includes a plurality of GOA units 11 cascaded.

[0016] Among them, the Nth level GOA unit 11 is used to transmit the signal ST(N-2) at the clock signal CK, the N-2 level transmission signal, the next N+2 level scanning signal G(N+2), and the N-2 level Under the control of the scan signal G(N-2) and the external control signal K...

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PUM

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Abstract

A GOA circuit (10) and a liquid crystal display (1). The GOA circuit (10) comprises a plurality of cascaded GOA units (11). The Nth-stage GOA unit (11) comprises: a pull-up control module (100), a pull-up module (201), a download module (202), a bootstrap capacitor module (203), a pull-down holding module (300), a pull-down module (400) and a control module (500). The control module (500) is separately connected to the pull-down holding module (300) and an adjacent GOA unit (11) and used for increasing discharge paths of the pull-down holding module (300) by means of the adjacent GOA unit (11) so as to increasing the pull-down speed of the pull-down holding module (300). In this way, the response speed of the pull-down holding module (300) can be increased, and thus, pull-down of the pull-down holding module (300) can be more rapid and efficient.

Description

Technical field [0001] The present invention relates to the field of liquid crystal display, in particular to a GOA circuit and a liquid crystal display. Background technique [0002] At present, the horizontal scan line drive (ie gate drive) of the active liquid crystal display panel is mainly completed by an external integrated circuit (IC), and the external IC is used to provide voltage to the corresponding gate line to make the corresponding film Transistors (TFTs) generate on / off actions to drive the horizontal scan lines at various levels. The GOA technology (Gate Driveron Array) is the array substrate row drive technology, which can use the original manufacturing process of the liquid crystal display panel to fabricate the horizontal scanning line drive circuit on the non-display area of ​​the substrate, so that it can replace the external IC to complete the horizontal scanning. Line drive. GOA technology can reduce the bonding process of external IC, which has the oppor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677
Inventor 曾丽媚陈书志
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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