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Method for reducing image sticking and liquid crystal display

A liquid crystal display, image retention technology, applied in static indicators, instruments, etc., can solve problems such as image retention, and achieve the effect of reducing image retention and improving display quality

Active Publication Date: 2016-01-06
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In summary, the existing methods do not really solve the problem of image retention, so it is urgent to provide a solution to solve the above problems, which can effectively reduce the phenomenon of image retention and improve the display quality of liquid crystal displays

Method used

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  • Method for reducing image sticking and liquid crystal display
  • Method for reducing image sticking and liquid crystal display
  • Method for reducing image sticking and liquid crystal display

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Embodiment Construction

[0026] Certain words are used to refer to specific components in the description and claims, and those skilled in the art should understand that manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a basis for distinction. The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] image 3 is a flowchart of a method for reducing image sticking according to an embodiment of the present invention. It should be noted that if there are substantially the same results, the method of the present invention does not image 3 The flow sequence shown is limited. Such as image 3 As shown, the method includes the following steps:

[0028] Step S10: Obtain the grayscale voltage value of each pixel in the current data frame.

[0029] In step S10, the g...

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Abstract

The invention discloses a method for reducing image sticking and a liquid crystal display. The method comprises the steps as follows: acquiring the gray-scale voltage values of the pixels in a current data frame; judging whether the gray-scale voltage values of the pixels in the current data frame change relative to the gray-scale voltage values of the same pixels in a previous data frame; calculating the difference between the gray-scale voltage values of the pixels in the current data frame and those in the previous data frame if the gray-scale voltage values of the pixels in the current data frame change; judging whether the difference is greater than 0; judging whether the number of data frames remaining unchanged is greater than a first predetermined value and smaller than a second predetermined value if the difference is greater than 0; and reducing the gray-scale voltage values of the pixels in the current data frame and outputting the gray-scale voltage values to a pixel drive unit if the number of frames is greater than the first predetermined value and smaller than the second predetermined value. By adopting the scheme, image sticking caused by feed-through voltage produced by a parasitic capacitor in the pixel drive unit can be reduced, and the quality of picture display can be improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a method for reducing image sticking and a liquid crystal display. Background technique [0002] During the display process of the liquid crystal display, the phenomenon of image sticking (Image Sticking) is prone to occur. Among them, image sticking refers to the phenomenon that the same still picture is displayed for a long time, and the previous picture remains after changing the displayed content. [0003] The main cause of image sticking is due to the parasitic capacitance (Cgd) of the thin film transistor (TFT) in the driving circuit of the liquid crystal display. During the display process of the liquid crystal display, when the voltage delivered by the scan line (GateLine) changes, a feedthrough (FeedThrough) voltage △V will be generated on the parasitic capacitance Cgd, which makes the data line (DateLine) reverse polarity Symmetry cannot be performed wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 卢宇程杨翔
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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