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a goa circuit

A circuit and electrical connection technology, applied in the display field, can solve the problems of increased power consumption of GOA modules and disadvantageous narrow borders of liquid crystal display panels, etc., to achieve the effect of realizing narrow border design, reducing the number, and simplifying the GOA circuit

Active Publication Date: 2020-02-07
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, large-size liquid crystal display panels have become the main development trend in the industry. With the increase of panel size and the number of gate drive lines, the GOA load will also increase accordingly. Therefore, the size of each TFT in the GOA and the panel frame will increase, which is not conducive to Realize the narrow frame of the liquid crystal display panel, and the increase of the load will also increase the power consumption of the GOA module

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related Other details are not relevant to the invention.

[0039] Such as figure 1 As shown in FIG. 1 , it shows a circuit diagram of the repeating unit of the nth level GOA circuit ...

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Abstract

The present invention provides a GOA circuit, which includes cascaded multi-level GOA circuit repeating units, and each level of GOA circuit repeating unit includes: a first pull-up control module (101), a first pull-down maintenance module (102), a second A pull-down module (106), a first bootstrap capacitor module (103), a first output module (104), a second output module (105), a second pull-up control module (201), a second pull-down maintenance module ( 202), a second pull-down module (206), a second bootstrap capacitor module (203), a third output module (204) and a fourth output module (205). The invention can reduce the number of TFTs in the GOA circuit, realize the narrow frame design, and reduce the power consumption of the GOA circuit at the same time.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a GOA circuit. Background technique [0002] At present, liquid crystal display devices have been widely used in various electronic products as a display component of electronic equipment, and the gate driver on array (GOA for short) of the array substrate is a thin film transistor (ThinFilm Transistor, TFT) liquid crystal display In the array process, the gate line scanning driving signal circuit is fabricated on the array substrate to realize the drive mode of progressive scanning of the gate, which has the advantages of reducing production cost and realizing narrow frame design of the panel, and is used for various displays. [0003] Display panels based on Low Temperature Poly-silicon (LTPS) technology can be classified into NMOS type, PMOS type, and CMOS type with both NMOS and PMOS types according to the type of thin film transistor (TFT) used in the panel. Similarly, GOA...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G11C19/28G09G2310/0286G09G2310/0267G09G3/20G09G3/3648G09G2310/08
Inventor 管延庆
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD