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Bidirectional gate drive array circuit

A gate drive and circuit technology, applied in the field of bidirectional gate drive array circuits, can solve the problems of high cost, waste, and consumption of more line buffers, and achieve the effect of reducing the number and saving the number of line buffers

Active Publication Date: 2020-05-12
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the control circuit for performing bidirectional scanning requires more line buffers to achieve the effect of bidirectional scanning due to the configuration of circuit components, which in turn results in excessive cost and waste in hardware configuration. Therefore, how to Overcoming the above-mentioned problems will be an important issue for the development of

Method used

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Embodiment Construction

[0043] In order to facilitate the understanding of the technical features, content and advantages of the present invention and the technical effects that can be achieved, the present invention is hereby combined with the accompanying drawings, and is described in detail as follows in the form of embodiments, and the accompanying drawings used herein, its gist It is only for the purpose of illustration and auxiliary description, not necessarily the true proportion and precise configuration of the present invention after implementation, so the attached drawings should not be interpreted based on the proportion and configuration relationship of the attached drawings, and the claims that limit the actual implementation of the present invention are complied with. Explain first.

[0044] In the drawings, the thickness or width of layers, films, panels, regions, light guides, etc., are exaggerated for clarity. Throughout the specification, the same reference numerals denote the same ...

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Abstract

The invention discloses a bidirectional gate drive array circuit. The bidirectional gate drive array circuit comprises a gate drive circuit, a forward scanning redundant circuit, a reverse scanning redundant circuit and a selection circuit. The gate drive circuit includes a plurality of drive shift registers respectively coupled to the scan lines of a plurality of pixels. The forward scanning redundant circuit is coupled to the last shift register, and the reverse scanning redundant circuit is coupled to the first shift register. The selection circuit is separately coupled to the gate drive circuit, the forward scanning redundant circuit and the reverse scanning redundant circuit, and closes the reverse scanning redundant circuit according to a forward scanning signal or closes the forwardscanning redundant circuit according to a reverse scanning signal.

Description

technical field [0001] The invention relates to a bidirectional gate drive array (Gate on array, GOA) circuit, in particular to a bidirectional gate drive array circuit capable of reducing required line buffering. Background technique [0002] For various display devices, the plurality of pixel units contained therein can be controlled by setting a gate drive array circuit to transmit a plurality of gate drive signals to each pixel unit to control the opening and closing of each pixel unit, or The brightness of the pixels is controlled so that the display device presents a corresponding picture. [0003] In the scanning technology, there are already display devices capable of bidirectional scanning, and the display quality can be improved by scanning in different directions. However, the control circuit for performing bidirectional scanning requires more line buffers to achieve the effect of bidirectional scanning due to the configuration of circuit components, which in tur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G11C19/28G09G2310/0286
Inventor 张恒豪黄俊豪陈哲贤
Owner AU OPTRONICS CORP
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