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Method and detection device for judging afterimage level of display device

A display device and judging method technology, applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problem of inability to obtain accurate results, no unified standard for afterimage judgment, and different people for afterimage judgment results, etc. question

Inactive Publication Date: 2017-02-15
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method for judging afterimages is very subjective and arbitrarily, and the accuracy is low. There is no uniform standard for judging afterimages, which causes the results of afterimages to be judged differently from person to person, and accurate results cannot be obtained. It plays an important role in the improvement of subsequent processes. blocking master

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  • Method and detection device for judging afterimage level of display device
  • Method and detection device for judging afterimage level of display device
  • Method and detection device for judging afterimage level of display device

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Embodiment Construction

[0034] In order to improve the detection accuracy of afterimage display of a display device. Embodiments of the present invention provide a method for judging the afterimage level of a display device and a detection device. In the technical solution of the present invention, the determination is made by detecting the corresponding relationship between the brightness of the detection position in the display device and the theoretical brightness when the display device is converted. Whether it is the afterimage brightness, and the relationship between the afterimage brightness and the corresponding afterimage level is used to determine the afterimage level, thereby improving the accuracy of afterimage detection. In order to make the object, technical solution and advantages of the present invention clearer, the following non-limiting examples are taken as examples to further describe the present invention in detail.

[0035] An embodiment of the present invention provides a meth...

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Abstract

A method for determining a residual image level of a display device and a detection device. The method includes: lighting the display device based on a setting image type, and setting a plurality of detection positions on the display device based on the setting image type; converting a display image on the display device into a grayscale image with a setting level; detecting an actual brightness value of each detection position within a setting time after converting into a grayscale of the setting level; for each detection position, acquiring a brightness variation index of the detection position based on the acquired actual brightness value and a corresponding predetermined relationship between the actual brightness value and a theoretical brightness value of the grayscale of the setting level; and acquiring an residual image level of the display device in the grayscale of the setting level based on the acquired brightness variation index.

Description

technical field [0001] The present invention relates to the technical field of display device production, and in particular to a method and detection device for judging the afterimage level of a display device. Background technique [0002] The residual image of the monitor mainly refers to that when the monitor displays the same screen for a long time and switches to another screen, the monitor will leave the residual image of the previous screen on the new screen, which is the so-called monitor residual image. For liquid crystal displays, the main cause of afterimages is that the absolute values ​​of the positive and negative voltages of the common voltage applied to the common electrode by the liquid crystal display cannot be completely consistent when the polarity is reversed, so that the mobile ionic impurities in the liquid crystal molecules are When the polarity is reversed, it is affected by the asymmetric voltage and migrates to one of the electrodes to form a DC re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/00
CPCG09G5/10G09G3/006G09G3/36G09G2320/0233G09G2320/0257G09G2320/043G09G2320/0646G09G2320/0693G09G2360/147
Inventor 赵剑
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD