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Common voltage supply circuit, liquid crystal display panel and driving method of liquid crystal display panel

A common voltage and current detection circuit technology, applied to static indicators, instruments, etc., can solve the problem of uneven display of liquid crystal display panels

Active Publication Date: 2019-05-21
CHONGQING BOE OPTOELECTRONICS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a common voltage supply circuit, a liquid crystal display panel and a driving method thereof, so as to solve the problem of uneven display when the liquid crystal display panel displays heavy-duty pictures

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  • Common voltage supply circuit, liquid crystal display panel and driving method of liquid crystal display panel

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Embodiment Construction

[0026] 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.

[0027] In the description of the present invention, it should be understood that "plurality" means two or more.

[0028] Based on TED (TCON Embedded Driver, embedded panel driver) IC technology, the ultra-narrow bezel and ultra-low power LCD display panel integrates TCON (Timer Control Register, timing control register) and data drive circuit in one chip. Greatly reduced the size of the bottom border. However, since the TED-IC is a COG (Chip On Glass, the chi...

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Abstract

The invention relates to the technical field of display, in particular to a common voltage supply circuit, a liquid crystal display panel and a driving method thereof. The problem that when a liquid crystal display panel displays a heavy-load picture, display is not uniform is solved. A common voltage providing circuit comprises a detection circuit connected with the input end of a power management integrated circuit, a reference end and a first node, and a control circuit connected with the first node, and the detection circuit is used for outputting a first control signal to the first node when the current of the input end of the power management integrated circuit is greater than the current of the reference end; When the current of the input end of the power management integrated circuit is smaller than that of the reference end, outputting a second control signal to the first node; And the control circuit is used for providing the voltage provided by the first voltage providing end to the common voltage output end under the control of the first control signal and providing the voltage provided by the second voltage providing end to the common voltage output end under the control of the second control signal.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a common voltage supply circuit, a liquid crystal display panel and a driving method thereof. Background technique [0002] At present, as people have more and more stringent requirements on the narrow frame, light weight and low power consumption of the display panel, an ultra-narrow frame, ultra-low power display based on TED (TCON Embedded Driver) IC technology has been introduced. consumption of the LCD panel. Contents of the invention [0003] The main purpose of the present invention is to provide a common voltage supply circuit, a liquid crystal display panel and a driving method thereof, so as to solve the problem of uneven display when the liquid crystal display panel displays heavy-duty images. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] On the one hand, an embodiment of the present invention provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/20G09G2300/0426G09G2320/0223G09G2320/0233G09G2330/02G09G2360/16G09G3/3655G09G2300/08G09G2310/0243G09G2310/0275G09G2310/0281G09G2320/0613G09G2320/103
Inventor 任燕飞赵敬鹏李盼盼梁雪波杨婷单伟星唐秀珠
Owner CHONGQING BOE OPTOELECTRONICS
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