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GOA (Gate Driver on Array) circuit, GOA (Gate Driver on Array) circuit scanning method, display panel and display apparatus

A display panel and circuit technology, applied in the field of GOA circuit, display panel and display device, can solve the problem of output signal attenuation, achieve the effect of reducing signal attenuation, reducing the number of stages, and solving obvious attenuation

Active Publication Date: 2016-03-16
BOE TECH GRP CO LTD
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Problems solved by technology

[0005] Embodiments of the present invention provide a GOA circuit, a scanning method of the GOA circuit, a display panel and a display device, which are used to solve the problem of obvious attenuation of the output signal caused by too many GOA cascades in the traditional GOA circuit

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  • GOA (Gate Driver on Array) circuit, GOA (Gate Driver on Array) circuit scanning method, display panel and display apparatus
  • GOA (Gate Driver on Array) circuit, GOA (Gate Driver on Array) circuit scanning method, display panel and display apparatus
  • GOA (Gate Driver on Array) circuit, GOA (Gate Driver on Array) circuit scanning method, display panel and display apparatus

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Embodiment Construction

[0034] 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, not all, embodiments of the present invention. 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.

[0035] In the present invention, the GOA units directly serially connected in the original GOA circuit are divided into k groups and the GOA units in the group are cascaded, so that the signal output terminal of the previous GOA unit in the group is connected to the next GOA unit in the group In addition, a gate unit is added to gate each group separately. When working, the gate unit uses the STV (English: StartVertical, Chinese: frame open signal) signal to tr...

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Abstract

The invention discloses a Goa (Gate Driver on Array) circuit, a Goa (Gate Driver on Array) circuit scanning method, a display panel and a display device. The objective of the invention is to solve the problem of obvious attenuation of output signals caused by excessive cascade connection of Goa units in a traditional Goa circuit. According to the Goa circuit, the signal output end of a Goa unit at the n-th row is connected with the signal input end of a Goa unit at the n+k-th row; the output end of the Goa unit at the n+k-th row is connected with the reset signal end of the Goa unit at the n-th row and the signal input end of a Goa unit at the n+2k-th row; the Goa circuit also comprises a gating unit; the gating unit is connected with Goa units from the first row to the k-th row; the gating unit controls the Goa circuit to output scanning signals sequentially from the first group of gate lines to the k-th group of gate lines; and in the x-th group, the GOA circuit outputs scanning signals sequentially from the x-th row to the m*k+x-th row. The Goa circuit, the Goa circuit scanning method, the display panel and the display device of the invention are mainly applied to the display field.

Description

technical field [0001] The invention relates to the field of displays, in particular to a GOA circuit, a GOA circuit scanning method, a display panel and a display device. Background technique [0002] In recent years, the development of displays has shown a trend of high integration and low cost. One of the very important technologies is the realization of the mass production of GOA (English: GateDriveronArray, Chinese: Array Substrate Row Drive). The gate switch circuit is integrated on the array substrate of the display panel by using GOA technology, so that the gate drive integrated circuit part can be saved, so as to reduce the product cost in terms of material cost and manufacturing process. The gate switch circuit integrated on the array substrate using the GOA technology is also called a GOA circuit or a shift register circuit. [0003] The GOA circuit includes several GOA units, and each GOA unit contains several TFTs (English: ThinFilmTransistor, Chinese: Thin Fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2310/0267G09G2300/0408G09G2310/0218G09G2310/0281G09G3/02G09G3/2085G09G3/342
Inventor 何敏袁广才
Owner BOE TECH GRP CO LTD
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