
Backlight Lighting Inspection
Product introduction
Based on the backlight process, Inovance Vision developed a backlight lighting inspection vision system used for the lighting test before delivery and assembly. It saves manpower and greatly improves product delivery quality. So far, the system has been widely used in various production terminals.
Solution
Pressing inspection station
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Main inspection station |
Inspection specifications
Items |
Dot defects |
Black/White dots, bright dots or foreign objects |
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Linear defects |
Linear foreign objects or backlight scratch |
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Mass defects |
Black/White masses or dirt |
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Others |
Abnormal display, uneven brightness, light leak or light eye |
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Inspection accuracy |
Dot defect: > 0.15 mm |
Linear defect: W > 0.03mm, L > 0.5 mm |
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Compatible screen size |
3–8 inch, supporting the conventional and special-shaped screens |
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Missing rate |
< 1% (Misdetection = Number of missing inspections/Total inspections x 100%) |
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Sieving rate |
< 15% (Sieving rate = Number of sieving passed/Total number x 100%) |
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Inspection efficiency |
One piece in less than 2.5s |
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Model change time |
New product model: < 1 h; Old product model: < 0.5 h |
Advantages
1、1.Customized optical hardware, ensuring high SNR
General camera
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High SNR |
Customized camera
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2、Deep learning mode based on non-defective products, ensuring high ease-of-use
Value
2、Needs less lighting reinspection workers, with an investment payback period less than 12 months
3、2.Significant improvement in product quality, with at least 70% reduction in dpppm compared with manual quality control
4、3.Strong usability, easily for technicians to master, and rapid application in factory