Residual image testing method of display panel and related device

A technology of a display panel and a test method, which is applied in the directions of testing optical performance, image analysis, image data processing, etc., can solve the problems of poor brightness uniformity and residual image test results, visual results matching, etc., to reduce data quantification results and visual inspection. The results do not match, the brightness uniformity is good, and the afterimage test results are accurate.

Pending Publication Date: 2022-04-12
HEFEI VISIONOX TECH CO LTD
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the residual image test results obtained by testing the display panel with poor brightness uniformity using the existing residual image test method do not match the visual results well

Method used

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  • Residual image testing method of display panel and related device
  • Residual image testing method of display panel and related device
  • Residual image testing method of display panel and related device

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only part of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0021] see figure 1 and figure 2 , figure 1 It is a schematic flow chart of an embodiment of the afterimage test method of the display panel of the present application, figure 2 It is a structural schematic diagram of an embodiment of the display panel. The display panel may be an OLED display panel, an LED display panel, a liquid crystal display panel, and the like. The afterimage test methods provided by this application include:

[0022] S101: Make the display panel 1 disp...

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Abstract

The invention provides an afterimage testing method of a display panel and a related device, and the method comprises the steps: enabling the display panel to display a middle gray scale picture, and obtaining the first brightness data of a plurality of first testing regions and a plurality of second testing regions in the display panel; wherein the first test area and the second test area in the same test group are symmetrically arranged about a first central axis of the display panel; the display panel located on one side of the first central axis displays a black picture, and the display panel located on the other side of the first central axis displays a white picture; enabling the display panel to display a middle gray scale picture, and obtaining second brightness data of the plurality of first test areas and the plurality of second test areas; obtaining a first residual image parameter according to the first brightness data and the second brightness data of the first test area and the second test area in the same test group; a second residual image parameter is obtained by using the first residual image parameters of the plurality of test groups. According to the mode, the matching degree between the residual image test result and the visual result can be improved.

Description

technical field [0001] The present application belongs to the field of display technology, and in particular relates to a method for testing afterimages of a display panel and related devices. Background technique [0002] The afterimage of the display panel refers to the phenomenon that after the display panel displays the previous static picture for a period of time, the image or outline of the previous picture still appears when the next picture is displayed. Therefore, before the display panel leaves the factory, it is necessary to test the residual image level of the display panel, so as to ensure the display effect of the display panel after leaving the factory. [0003] However, the afterimage test results obtained by using the existing afterimage test method to test the display panel with poor brightness uniformity cannot match the visual results well. Contents of the invention [0004] The present application provides a method for testing afterimages of a display...

Claims

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Application Information

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IPC IPC(8): G06T7/62G06T7/00G01M11/02
Inventor 王书锋张仁伟
Owner HEFEI VISIONOX TECH CO LTD
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