Detection method and full-automatic optical detection system for ITO conductive glass

Abstract

The invention discloses a full-automatic optical detection system for ITO (Indium Tin Oxide) conductive glass. The full-automatic optical detection system comprises an image management and acquisition module, a data format conversion and a management module, an image processing module and a master control module, wherein the master control module comprises a motion control system and an identification control module; all the modules are connected with one another by data transmission lines; the detection system further comprises an image acquisition mechanism; the image acquisition mechanism comprises at least one camera arranged on a movable stand, at least one point light source, at least one coaxial lens and a detection base plate mounted under the lens. The full-automatic optical detection system can be used for reliably detecting defects in the ITO detection; the precision can reach 0.003 mm; the defect detection rate greater than 0.008 is 100 percent; surface defects, scratch and score can be detected; whether silver lines are incomplete or not is detected; and crack, depress and the ITO completeness are detected. The precision of the full-automatic optical detection system is 0.003 mm and the speed of the full-automatic optical detection system is 20 seconds / PCS.

Description

technical field [0001] The invention belongs to the technical field of detection, and relates to a detection method of ITO conductive glass and a fully automatic optical detection system thereof. Background technique [0002] It is made of indium tin oxide (commonly known as ITO) film. ITO conductive glass is a special coated glass with high technological content, and it is also the basic material of the electronics industry. Mainly used in the production of liquid crystal display devices (LCD). Because of its small size, light weight, thin thickness, no radiation, low voltage, energy saving and environmental protection, liquid crystal display (LCD) is the most valued and popular display device in the world today. It has been widely used in various fields of the national economy such as computers, communications, home appliances, instruments and meters, military industry, light industry, and medical treatment. It is the most widely used and fastest-growing product in the e...

AI Technical Summary

Problems solved by technology

This product defect detection method has many shortcomings. First, the human eye works under high light source for a long time, which is very easy to fatigue, and it is easy to make misjudgments and missed judgments; , the standard of subjective judgment is also different, and it is difficult to quantify, so there is no unified detection standard in the detection process; finally, due to the heavy workload and high repeatability of detection, the damage to human eyes is serious

And sometimes, such as tiny size needs to be accurately and quickly measured, shape matching, color recognition, etc., people simply cannot use the naked eye to continuously and stably measure it, and other physical sensors are also difficult to use.

Not only is the efficiency low, but the work intensity is high, and the added value of the product is relatively low

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