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Temperature compensation circuit, temperature compensation method and liquid crystal display

A temperature compensation circuit and temperature sensor technology, applied in voltage/temperature change compensation, static indicators, instruments, etc., can solve the problems of common electrode voltage offset, liquid crystal display panel screen flickering, etc., achieve stable screen display and improve vision The effect of experience

Inactive Publication Date: 2017-02-22
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, when the temperature of the liquid crystal display panel changes, the voltage of its common electrode will usually shift, which will cause flickering in the picture displayed on the liquid crystal display panel.

Method used

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  • Temperature compensation circuit, temperature compensation method and liquid crystal display
  • Temperature compensation circuit, temperature compensation method and liquid crystal display
  • Temperature compensation circuit, temperature compensation method and liquid crystal display

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Embodiment Construction

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, 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 also belong to the protection scope of the present invention.

[0035] figure 2 A schematic block diagram of a temperature compensation circuit according to an embodiment of the present invention is shown. Such as figure 2As shown, the temperature compensation circuit includes: a temperature detection unit 201, which detects the temperature change ΔT of the display panel; a temperature conversion unit 205, which converts the temperature change ΔT detected by the temperature detection unit 201 into a voltage compensation amount ΔV; and a compensation signal ge...

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Abstract

Disclosed are a temperature compensation circuit, a temperature compensation method and a liquid crystal display for a display panel. The temperature compensation circuit includes: a temperature detection unit to detect the temperature change; a temperature conversion unit to convert the detected temperature change into a voltage compensation; and a compensation signal generation unit to process the voltage compensation to generate A compensation signal for temperature compensation of the common electrode voltage of the display panel. According to the temperature compensation circuit and temperature compensation method of the embodiment of the present invention, when the temperature changes, the common electrode voltage of the display panel can be adjusted in real time, so that the common electrode voltage is at the midpoint of the positive and negative gray scale changes, thereby adjusting the display panel in The amount of flicker present when polarity is reversed is kept to a minimum in order to make the picture display more stable and improve the viewer's visual experience.

Description

technical field [0001] The present disclosure relates to the field of liquid crystal display, in particular to a temperature compensation circuit for a liquid crystal display panel, a temperature compensation method and a liquid crystal display including the temperature compensation circuit. Background technique [0002] In current liquid crystal display panels, the liquid crystal molecules are usually driven by polarity inversion. There are various polarity inversion methods such as frame inversion, column inversion, row inversion and dot inversion. However, when the polarity is reversed, the picture displayed on the panel may flicker, which is most likely to occur in frame inversion. see figure 1 , when the frame is reversed, the whole picture is of the same polarity. Since the positive and negative polarity pictures appear alternately, the two frames before and after are reversed, and the actual voltage on the pixel is the difference between the voltage on the pixel ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCH03K19/00369G09G3/3655G09G3/3696G09G2320/041
Inventor 崔子巍王陆旸赵龙孙琦
Owner BOE TECH GRP CO LTD
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