Method and device for detecting a display panel
A display panel and detection method technology, applied in static indicators, image analysis, image enhancement, etc., can solve the problem of inability to distinguish different types of pixel electrodes, and achieve the effect of reducing the requirements of light sources
Active Publication Date: 2020-05-05
HKC CORP LTD +1
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[0003] Embodiments of the present invention provide a display panel detection method and device, aiming at solving the problem that existing display panel detection methods cannot distinguish different types of pixel electrodes
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] see figure 1 , figure 1 It is a schematic flowchart of a display panel detection method provided by an embodiment of the present invention. Such as figure 1 As shown, the display panel detection method includes steps S101-S104.
[0030] S101. Acquire a corresponding grayscale image when the display panel is irradiated by a preset light source, wherein the grayscale image includes pixel electrode images corresponding to a plurality of pix...
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The invention discloses a display panel detection method and device, wherein the method includes: acquiring a grayscale image corresponding to when the display panel is irradiated by a preset light source, wherein the grayscale image includes a plurality of pixel electrodes in the display panel corresponding to and obtaining the grayscale range corresponding to the pixel electrode image; calling the preset corresponding relationship between the preset grayscale range and the pixel electrode category; identifying the pixel electrode according to the preset corresponding relationship and the grayscale range The pixel electrode category corresponding to the image. The detection method utilizes the gray scale to identify different types of pixel electrodes, and at the same time, the method is suitable for reflected light or transmitted light, which reduces the requirements for light sources in the design of detection equipment. In addition, the method is realized by software without increasing hardware cost.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a method and device for detecting a display panel. Background technique [0002] Currently, liquid crystal display panels are widely used in electronic devices such as mobile phones, tablet computers, and computer monitors. However, in the existing liquid crystal display panel manufacturing technology, it is very difficult to completely avoid display defects, so it is necessary to perform display defect detection on the display panel. Irradiating display panels with a transmitted light source is a common detection method. However, in the test equipment for display panels, many devices cannot use transmitted light sources due to structural design restrictions. Only reflected light can be used for testing, and the testers cannot directly view the test screen. To distinguish different types of pixel electrodes, such as RGB pixel electrodes, especially when the pattern shap...
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IPC IPC(8): G02F1/13G09G3/00
CPCG02F1/1309G09G3/006G09G3/20G06T2207/30121G06T7/001G06T2207/10152G06T7/97G06T7/90
Inventor 李进
Owner HKC CORP LTD