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Screen body detection equipment

A testing device and a technology to be tested, which are applied in measuring devices, optical instrument testing, testing optical performance, etc., can solve problems such as waste of human resources, low precision, and inability to fully inspect

Pending Publication Date: 2021-01-12
EELY ECW TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of automatic visual inspection equipment cannot detect the poor fit caused by the display screen during the production process. It can only be judged whether the fit is wrong (poor coaxiality or rotation) by visual inspection with the naked eye or by clamping with a jig. , the use of manual visual inspection will cause inconsistent subjective judgment standards due to individual differences, and it is easy to miss inspections. There are problems such as low precision, low efficiency, and inability to fully inspect, which wastes human resources and cannot guarantee the stability of product quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] figure 1 It is a schematic diagram of the first structure of a screen detection device provided by an embodiment of the present invention; figure 2 It is a detection image of a screen detection device provided in an embodiment of the present invention under different detection states. This embodiment is applicable to the situation where the automatic visual inspection technology is used to detect whether there are defective defects and lamination deviation problems of the liquid crystal display screen.

[0026] Such as figure 1 As shown, a screen detection device includes: a ring light source, an industrial camera and a detection unit; wherein,

[0027] Industrial camera, used to obtain the screen image of the product to be inspected when the ring light source is on and the product to be inspected is not on; when the ring light source is off and the product to be inspected is on, Obtain the inspection images of the product to be inspected in N inspection states; whe...

Embodiment 2

[0042] image 3 It is a second structural schematic diagram of a screen detection device provided by an embodiment of the present invention. The embodiments of the present invention are optimized on the basis of the foregoing embodiments. Optionally, this embodiment explains in detail the process of performing screen inspection on the product to be inspected based on the screen image of the product to be inspected and the inspection images of the product to be inspected in N detection states.

[0043] The detection unit is specifically used to perform defect detection on the product to be detected based on the screen image of the product to be detected and the detection images of the product to be detected in N detection states, and obtain the detection result of the product to be detected.

[0044] In a specific embodiment of the present invention, the industrial camera is specifically used to obtain the screen image of the product to be detected when the ring light source i...

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Abstract

The invention discloses screen body detection equipment, and relates to the field of automatic visual detection. The equipment comprises an annular light source, an industrial camera and a detection unit, wherein the industrial camera is used for acquiring a screen body image of a to-be-detected product when the annular light source is in a lighted state and the to-be-detected product is in a non-lighted state; when the annular light source is in the non-lighted state and the to-be-detected product is in the lighted state, detection images of the to-be-detected product in N detection states are obtained, wherein N is a natural number greater than or equal to 1, and the N detection states can be classified into bad defect detection, coaxiality detection and rotation degree detection on theto-be-detected product; and the detection unit is used for carrying out screen body detection on the to-be-detected product based on the screen body image of the to-be-detected product and the detection images of the to-be-detected product in the N detection states.

Description

technical field [0001] The invention relates to an automatic visual detection technology, in particular to a screen detection device. Background technique [0002] With the development of technology, consumer electronic devices have become more and more popular, and various touch electronic products (mobile phones, tablet computers, touch TVs, smart watches, etc.) Higher and higher also makes touch screen manufacturers have strict control over product quality. In particular, the size of smart watch products is getting smaller and smaller, which requires manufacturers to have higher and higher requirements for the accuracy of display products. While inspecting poor lighting defects, higher accuracy is required for the coaxiality and rotation of the screen body. For this reason, automatic visual inspection of the coaxiality and rotation of the display screen has become a trend. [0003] In the prior art, the screen inspection equipment is mainly automatic visual inspection. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02G01M11/08
CPCG01M11/02G01M11/0278G01M11/081
Inventor 饶杰
Owner EELY ECW TECH