Image sticking test method and test device for image sticking of display panel
A technology of a display panel and a test method, applied in the direction of testing optical performance, etc., can solve problems such as inconsistent judgment results, and achieve the effects of improving objectivity, avoiding adverse effects, and improving accuracy and reliability.
Active Publication Date: 2022-03-29
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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However, different people have different sensitivity to afterimages, which may easily lead to inconsistent final judgment results.
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[0030] The characteristics and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only configured to explain the present invention, not to limit the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.
[0031]It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation,...
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The invention discloses a residual image test method and a residual image test device of a display panel. The image sticking test method includes: dividing the display interface of the display panel to be tested into a plurality of blocks arranged in an array; displaying the first middle grayscale picture on the display panel to be tested; switching to display a test picture on the display panel to be tested ; On the display panel to be tested, switch to display the second middle grayscale picture; in the state where the display panel to be tested displays the second middle grayscale picture, collect the brightness of each block in the actual image of the display panel to be tested, according to each Obtain the first afterimage parameter corresponding to each block from the brightness relationship between the block and its adjacent blocks; obtain the second afterimage parameter of the display panel to be tested according to the first afterimage parameters of multiple blocks ; and obtain an afterimage test result according to the second afterimage parameter. According to the image sticking test method of the display panel in the embodiment of the present invention, a quantitative test result of the image sticking is finally obtained, thereby improving the objectivity of the image sticking test result.
Description
technical field [0001] The invention relates to the field of display panel testing, in particular to a residual image test method and a residual image test device of a display panel. Background technique [0002] The afterimage phenomenon of the display panel refers to the phenomenon that the display panel still displays the image or outline of the previous static picture when the next picture is displayed after the display panel displays the previous static picture for a certain period of time. A display panel with severe image sticking has a poor display effect. Therefore, testing the image sticking level of the display panel is of great significance for improving the production yield of the display panel. [0003] In the prior art, the residual image level of the display panel is judged by artificially observing the time required for the residual image of the display panel to disappear. However, different people have different sensitivity to afterimages, which may easil...
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IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 马建东
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD