Bright spot detecting equipment and method for filtering foreign body noise

A technology for detecting equipment and bright spots, which is applied in the direction of testing optical performance, etc., can solve problems such as misjudgment in the detection process, and achieve the effect of improving the filtration rate

Inactive Publication Date: 2015-11-25
UTECHZONE CO LTD
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  • Abstract
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Problems solved by technology

[0005] However, in addition to the above-mentioned bright spots and broken bright spots generated during the manufacturing process, the flawed images produced by the upper and lower light sources may also show foreign objects (such as dust and hair) attached to the panel and polarizer. Foreign matter will lead to misjudgment (overkill) in the detection process

Method used

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  • Bright spot detecting equipment and method for filtering foreign body noise
  • Bright spot detecting equipment and method for filtering foreign body noise
  • Bright spot detecting equipment and method for filtering foreign body noise

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Embodiment Construction

[0046] The detailed description and technical content of the present invention will now be described in conjunction with the drawings as follows. Furthermore, for the convenience of description, the figures in the present invention are not necessarily drawn according to actual proportions, but are exaggerated. These figures and their proportions are not intended to limit the scope of the present invention.

[0047] The present invention provides a bright spot detection device for filtering foreign body noise. The bright spot detection device is used for high-precision optical instrument detection, using machine vision (detection lens) as the detection standard to process and obtain panels or polarized light. The location of foreign objects or pattern flaws on the film.

[0048] See figure 1 and figure 2 , Is the side view and block diagram of the bright spot detection equipment of the present invention, as shown in the figure:

[0049] The present invention provides a bright spot d...

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Abstract

Bright spot detecting equipment for filtering foreign body noise comprises a detection platform, an image taking device, a back surface light source, a lateral light source and an arithmetic unit, wherein a to-be-detected panel is arranged on the detection platform; the image taking device is mounted on one side of the detection platform and take photos to the surface of the to-be-detected panel according to shooting orders; the back surface light source is mounted one side of the detection platform opposite to the image taking device; the lateral light source is mounted on the periphery of the front side and/or the back side of the to-be-detected panel; the arithmetic unit starts the back surface light source and acquires a mixed flaw surface image via the image taking device; the lateral light source is started and a foreign body flaw surface image is achieved via the image taking device; foreign body noises of the mixed flaw surface image can be filtered according to the mixed flaw surface image; and a bright spot distribution image is therefore output.

Description

Technical field [0001] The present invention relates to a bright spot detection device, in particular to a bright spot detection device that can filter out foreign body noise. Background technique [0002] Currently in the industry, a complete panel manufacturing process must pass at least the following types of inspections: 1. Inspection of glass substrates and color filters. 2. Detection of bright spots and broken bright spots on the panel, polarization sheet. 3. Mura detection is usually carried out in liquid crystal cell engineering or module engineering. 4. Defect detection in array circuit engineering. [0003] Among them, bright spots and broken bright spots on the panel and polarizer are common defects in the panel manufacturing process. When the polarizer or panel is manufactured, the surface of the polarizer or panel will be inspected in a non-contact manner through an automatic optical inspection system (Automated Optical Inspection, AOI). The general representative ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
Inventor 林品杰李耀生
Owner UTECHZONE CO LTD
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