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A goa circuit and liquid crystal display

A technology of circuits and unit circuits, applied in static indicators, instruments, nonlinear optics, etc., can solve problems such as external interference, affecting the charging status of pixel electrodes, affecting the light transmittance of liquid crystal deflection panels, etc., to achieve stable output and avoid The effect of cascading signal distortion

Active Publication Date: 2018-02-16
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] The present invention provides a GOA circuit, which can effectively solve the problem that in the prior art, the step-by-step signal may jump or be disturbed by the outside during the step-by-step transmission process, thereby distorting the output step-by-step signal and affecting the charging of the pixel electrode. Conditions, which in turn affect the deflection of liquid crystal and the technical problems of light transmittance of the panel

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

[0035] 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.

[0036] see figure 1 , is an embodiment circuit diagram of the GOA circuit of the present invention;

[0037] The GOA circuit of the present invention includes cascaded multi-level GOA unit circuits, and each level of GOA unit circuit includes: a level transmission signal buffer module 500, which is used to output the level transmission signal of the current level and increase the stability of the level transmission signal ;

[0038] The cascaded signal buffer module 500 includes N inverters 501 serially connected in series, wherein N is an odd number. Preferably, the cascaded signal buffer module 500 in this embodiment includes 3 inverters 501 connected serially in sequence. It should be noted that the number of inverters is not limited to t...

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Abstract

A GOA circuit and a liquid crystal display, the circuit comprising a plurality of stages of cascaded GOA unit circuits, wherein each stage of GOA unit circuit comprises: a stage transferring signal buffer module (500) comprising N phase inverters sequentially connected in series, where N is an odd number; and a first capacitor (C1) and a second capacitor (C2) which are arranged in at least one phase inverter, wherein one end of the first capacitor (C1) accesses a first constant-voltage potential (VGH), one end of the second capacitor (C2) accesses a second constant-voltage potential (VGL), the other end of the first capacitor (C1) and the other end of the second capacitor (C2) are electrically connected to an output end (B) of an (N-1)th phase inverter.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a GOA circuit and a liquid crystal display. Background technique [0002] Array substrate line drive (GOA, Gate Driver On Array or Gate On Array) circuit is to use the existing thin film transistor display (TFT-LCD) array (Array) process to make the gate line (Gate) row scanning drive signal circuit on the array On the substrate, it is a technology to realize the driving method of progressive scanning of the gate lines. Compared with the traditional flexible circuit board (COF) and glass circuit board (COG) process, it not only saves the production cost, but also saves the bonding process in the gate direction, which is extremely beneficial to increase production capacity and The integration degree of the display device is improved. [0003] At present, most of the GOA circuits use the stage transmission signal to directly turn on the next stage of the GOA circui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G02F1/1345
CPCG02F1/13454G09G3/3677G02F1/1345G09G3/36
Inventor 张春倩王超薛景峰李亚锋
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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