Mini LED backlight panel defect detection method and device

A defect detection and defect technology, which is applied in the field of image processing, can solve the problems of low efficiency of LED particles, affecting the yield of Mini LED backlight panel shipments, large quantity, etc., and achieve the effect of improving the quality of inspection

Pending Publication Date: 2022-06-03
合肥欣奕华智能机器股份有限公司
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Problems solved by technology

[0002] At present, microscopes and manual visual inspection are mainly used to detect the defect status of Mini LED backlight panels. Since Mini LED backlight panels have the characteristics of small LED particle size (50*100 microns) and large quantity (200,000 pieces / piece), artificial Low efficiency in detecting LED particle defects
Therefore, some manufacturers use the Mini LED backlight to detect the defect state of LED particles, but this method can only detect the defect state of the panel related to the luminous effect (such as polar inversion, anti-white, etc.), and the defect state unrelated to the luminous effect is Unable to detect, affecting the shipment yield of Mini LED backlight panels

Method used

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  • Mini LED backlight panel defect detection method and device
  • Mini LED backlight panel defect detection method and device
  • Mini LED backlight panel defect detection method and device

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Embodiment Construction

[0056] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. . Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0057] Based on the exemplary embodiments shown in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application. In addition, although the disclosures in this application are presented in terms of one or several exemplary examples, it should be understood that each aspect of the disclosures can also constitute a complete te...

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Abstract

The invention relates to the technical field of image processing, and provides a Mini LED backlight panel defect detection method and device. The method comprises the following steps: dividing an acquired Mini LED backlight panel image into a plurality of LED images, wherein each LED image comprises an LED particle; and detecting the defect state of the LED particles contained in each LED image by adopting a method matched with the defect type according to the defect type, so that the defects of the LRD particles in the Mini LED backlight panel can be quickly and accurately detected.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular, to a method and device for defect detection of a MiniLED backlight panel. Background technique [0002] At present, the defect state detection of Mini LED backlight panels is mainly carried out by microscope and manual visual inspection. Because Mini LED backlight panels have the characteristics of small size (50*100 microns) and large number of LED particles (200,000 pieces / piece), artificial The detection efficiency of LED particle defects is low. Therefore, some manufacturers use the Mini LED backlight to detect the defect state of the LED particles, but this method can only detect the defect state of the panel related to the luminous effect (such as polar reverse, reverse white, etc.), and for the defect state unrelated to the luminous effect, It cannot be detected, which affects the shipment yield of Mini LED backlight panels. SUMMARY OF THE INVENTION...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G01N21/01
CPCG01N21/8851G01N21/01G01N2021/8887G01N2021/8854G01N2021/0112
Inventor 修浩然王嘉伟
Owner 合肥欣奕华智能机器股份有限公司
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