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GOA circuit and liquid crystal display panel

A circuit and unit group technology, applied in static indicators, instruments, etc., can solve problems such as poor panel display, and achieve the effect of improving display effect, reducing signal attenuation, and reducing the number of stages

Inactive Publication Date: 2018-06-01
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The GOA circuit includes several GOA units, and each GOA unit includes several TFTs (Thin Film Transistors, thin film transistors), wherein each GOA unit corresponds to one row of scanning lines, and the specific output end of each GOA unit is connected to one row of scanning lines; now In the prior art, the GOA circuit usually can only enable the scan lines to be turned on sequentially, that is, turn on in the order from the first line to the last line, which is likely to cause poor panel display

Method used

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  • GOA circuit and liquid crystal display panel
  • GOA circuit and liquid crystal display panel
  • GOA circuit and liquid crystal display panel

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0023] 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 The signal input terminal of the signal, and additionally add a starting signal output unit, the starting signal output unit has the 1st to kth output terminals, and the 1st to kth ...

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Abstract

The invention discloses a GOA circuit and a liquid crystal display panel. Intra-group cascading is performed after grouping GOA units in the GOA circuit, and a start signal output unit outputs start signals to the first to k-th GOA units in sequence at a preset time interval such that the GOA circuit sequentially outputs scan signals according to the first group to the k-th GOA unit group, therebyreducing the cascading number of the GOA units, reducing the signal attenuation, and further improving the display effect of the liquid crystal display panel.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a GOA circuit and a liquid crystal display panel. 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 mass production of GOA (Gate Driver on Array, 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 includes several TFTs (Thin Film Transistors, thin film transistors), wherein each GOA unit corresponds to one row of scan...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3674
Inventor 李文英
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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