Display screen display defect detecting method, device and equipment

A technology for displaying defects and detection methods, applied in measuring devices, optical testing of defects/defects, image enhancement, etc., can solve problems affecting detection efficiency and detection speed reduction, avoid overheating or damage, and improve detection speed and detection efficiency , to avoid the effect of false detection

Inactive Publication Date: 2016-01-20
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of reducing the probability of false detection by adding a special decontamination link in the prior art, resulting in a decrease in detec

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  • Display screen display defect detecting method, device and equipment
  • Display screen display defect detecting method, device and equipment
  • Display screen display defect detecting method, device and equipment

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] Please refer to Figure 1A, which shows a structural block diagram of a display defect detection device for a display screen provided by an embodiment of the present invention. The display defect detection device 10 includes: a bracket 11 , and a display screen fixing component 12 , a diffuse reflection light source component 13 and an image acquisition component 14 respectively connected to the bracket 11 .

[0036] The display screen fixing component 12 is used for fixing the display screen under test. The diffuse reflection light source component 13 is configured to provide a diffuse reflection light source. The image acquisition component 14 is configured to capture a first image from the front of the tested display screen ...

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Abstract

The invention discloses a display screen display defect detecting method, device and equipment, and belongs to the technical field of display. The method includes the steps that suspected defective pixels are recognized in a first image on the front face of a detected display screen, and the first image is obtained by shooting the detected display screen in a pure color display state; external dirty pixels are recognized in a second image on the front face of the detected display screen, and the second image is obtained by shooting the detected display screen which is in an extinguished state and irradiated on the front face by a diffuse reflection light source; for all the recognized suspected defective pixels in the first image, whether the external dirty pixels exist in the same positions of the second image or not is detected, and if not, the suspected defective pixels are determined as display defective pixels. The problem that in the prior art, a special dirt removal link is added to reduce the mistaken detection probability, and detection efficiency is affected is solved. The real display defects and external dirt are automatically distinguished, mistaken detection caused by the dirt can be avoided, and the detection efficiency is substantially improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display defect detection method, device and equipment of a display screen. Background technique [0002] A liquid crystal display (English: Liquid Crystal Display; abbreviation: LCD) has been widely used in various electronic devices, and has almost become a standard configuration of an electronic device. [0003] In the process of mass production of LCDs, it is inevitable that there will be a certain number of products with display defects, such as dark pixels, bright pixels, or display defects caused by impurities in pixels. Therefore, the display defect detection of LCD is a necessary link before the electronic equipment leaves the factory. In the relevant detection technology, by controlling the LCD under test to be in a lighted state, and taking an image of the LCD under test from the front side of the LCD under test (that is, the side of the LCD under test for displayin...

Claims

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Application Information

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IPC IPC(8): G01N21/88G02F1/13
CPCG01N21/88G01N2021/9513G02F2203/69G01N21/95G02F1/1309G06T7/0008G06T7/001G06T2207/30121
Inventor 张会强
Owner HUAWEI TECH CO LTD
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