The ITO line AOI inspection machine (also known as the step electrode automatic inspection machine, terminal scratch automatic inspection machine) is mainly used for defect detection of ITO in the exposed area of TFT-LCD lines, improving production line yield and the process control capability of manufacturers. Mainly detecting scratches, short circuits, open circuits, micro breaks, foreign objects (dirt), corrosion, burrs, etc. The equipment can be widely used in fields such as TFT-LCD industry, touch screen industry, photovoltaic industry, and LED industry, achieving rapid detection of ITO lines, silver paste lines, etc. on glass substrates or flexible substrates (PET, CPI, etc.).
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Item |
Parameter |
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Model |
D3 offline series/D4 online series |
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Machine Vision System |
LCD Size |
TFT-LCD size: 1.8-40 inches, maximum 1000 x 480mm, suitable for detecting irregular screens |
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Check Area |
Covering the entire glass ITO circuit, including Fanout area circuit, CFOG Pad area circuit, etc. (beyond 15um from the edge of the TFT polarizer) |
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Line Type |
Detect straight lines, wavy lines, corner lines, cross lines, bright and dark lines (contrast differences), bonded area blocks, etc., and filter out misjudgments caused by IC pad lines, ACF cured colors, line intersections, etc |
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Defect type |
Line scratches, micro scratches, short circuits, open circuits, micro breaks, foreign objects (dirt), corrosion, burrs, etc |
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Accuracy |
Minimum detectable defect size 2um × 2um |
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Leakage |
0 DPPM (missed detection rate: number of missed detections on the production line/number of scratches during inspection) |
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Over Kill |
<5%, with an average misjudgment of<2 images/piece |
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Operating Rate |
>90% |
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*Takt Time |
7-12 Inch Panel Double Steps ≤ 7sec |
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12-17 Inch Panel Double Steps ≤ 10sec |
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17-24 Inch Panel Double Steps ≤ 12sec |
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24-45 Inch Panel Double Steps ≤ 15sec |
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Model Change |
New model switching time:<60 minutes |
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Existing model switching time:<20 minutes |
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optical system |
Area array high-precision camera |
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Customized coaxial light source |
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Customize high-resolution 4X or 10X objective lenses based on actual needs |
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Visual Positioning |
Support panoramic positioning or Mark positioning |
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Electromechanical system |
Sheet metal frame structure+marble platform to enhance equipment stability and plane reference |
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Using a dual head linear motor for transplanting and transporting materials, with high precision and speed |
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The testing institution adopts high-precision linear motor with a resolution of 0.1um |
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Adopting DD motor rotating platform, high-precision and high rigidity |
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Adopting servo motor and high-precision screw module, used for material code reading, visual positioning calibration and other mechanisms |
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Adopting SMC pneumatic and vacuum system |
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Loading and unloading |
Card clip storage mode |
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Tray disk storage mode |
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CV transmission mode |
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Material box conveying mode |
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Cell Transfer |
CV conveyor, anti-static belt conveyor |
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Four axis/six axis robot handling |
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Multi axis servo motor+linear module architecture for transportation |
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Forklift handling and transportation |
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Flip over |
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Software System |
Otek with proprietary intellectual property rights ® AOI Industrial Application Testing Software |
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Usability: intuitive and user-friendly graphical display interface, intelligent parameter setting function |
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Humanized, optional alarm function, and customizable alarm function (such as defect rate upper limit alarm function) |
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Quick switching function: Different products can edit and call different recipes |
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Data security and fast positioning: Abnormal images can be 100% saved and retained: OK saved image+NG thrown material saved image; The image can be zoomed in and out, and the abnormal location of AOI inspection can be identified; Abnormal images stored for more than three months, with a minimum storage space of 2T |
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Advanced permission settings: equipped with a window for adjusting the interception rate and setting different permissions |
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Quick integration with customer information system interface: The detection result data can be saved and uploaded to the CIM system |
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Algorithm |
Algorithm |
Otek ® AOI detection algorithm+AI artificial intelligence re evaluation system |
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QR codes |
Supports reading multiple Vericode codes, corresponding to Normal Type, Normal HD Type Vericode, Outline Type Vericode, and DM Type Vericode |
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Other |
Safety |
Safety grating/safety door lock: used for personnel safety protection |
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FFU: Used for clean equipment to achieve Class 1000 and Class 100 cleanrooms in internal spaces |
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Static electricity: The material in contact with the product is made of anti-static material and equipped with an ion air rod to eliminate static electricity |
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Power |
AC 220V±10% 50~60Hz |
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Grounding |
The resistance between any two grounding points of the entire machine is less than 5 Ω |
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Ionizing Air Blower |
The ion dissipation rate in the homework area is less than 5 seconds; Ionic equilibrium voltage within 100V |
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Environment |
Temperature: 5-40 ℃ |
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Humidity: 25~85% RH (without condensation) |
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Temperature |
＜40℃ |
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Positive pressure |
0.5~0.6MPa, access port provided by the manufacturer |
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Negative pressure |
-80kpa, access port provided by the manufacturer |
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Defect image
The ITO line AOI inspection machine (also known as the step electrode automatic inspection machine, terminal scratch automatic inspection machine) is mainly used for defect detection of ITO in the exposed area of TFT-LCD lines, improving production line yield and the process control capability of manufacturers. Mainly detecting scratches, short circuits, open circuits, micro breaks, foreign objects (dirt), corrosion, burrs, etc. The equipment can be widely used in fields such as TFT-LCD industry, touch screen industry, photovoltaic industry, and LED industry, achieving rapid detection of ITO lines, silver paste lines, etc. on glass substrates or flexible substrates (PET, CPI, etc.).
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TFT-LCD online foreign object line inspection machine is an AOI equipment used to detect product defects before and after bonding of LCD panels. It mainly detects foreign objects, corrosion, scratches and other defects, thereby improving production line yield and the manufacturer's process control capabilities.
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The TFT-LCD edge inspection machine is developed and produced by Fuxin Optoelectronics. Based on machine vision and AI artificial intelligence technology, the TFT-LCD edge inspection machine integrates optics, mechanics, electronics, software, and algorithms. It is mainly used for automatic detection of edge defects in the TFT-LCD production process, achieving machine replacement. In practical applications, suspected defect areas are extracted from the edge sample images of TFT-LCDs after image processing, and judgment criteria are established to effectively eliminate interference. The types of defects such as edge extension, shell, edge collapse, and corner collapse are successfully determined, and the criteria are established to avoid repeated judgments and detect multiple defects simultaneously.
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The glass cover of a mobile phone is the outermost glass of the touch screen. With the rise of smartphones, glass covers are widely used in the electronics industry. They are attached to the surface of touch screens to protect the screen and beautify products. The automatic detection of cover defects in the field of smartphones is considered a technological bottleneck that has plagued the industry for many years. The detection of surface defects in products requires high detection accuracy and reliable lighting effects to ensure, especially for the detection of glass cover plates after lamination, which is more difficult. At present, the device can detect white film and silk screened cover plates, and is compatible with the detection of 3D glass cover plates. It can also detect defects in car glass screens and TFT-LCDs.
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The FPC flexible circuit board bonding foreign object inspection machine is used to detect defects such as FPC misalignment, bubbles, various foreign objects, and missing particles after FPC bonding. Using an array camera for double-sided shooting, taking defective images, extracting defects through software algorithms, designing different software algorithms for processing and classification according to different defects, and adjusting detection specifications based on algorithm thresholds. Real time monitoring of the bonding quality of the production line, equipment alarms remind employees to handle batch defects in a timely manner, greatly reducing the occurrence of defective products and preventing them from flowing to the next post.
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Address：Unit 204, No. 30 Guanri Road, Phase II Software Park, Xiamen City
Factory Address：1st Floor，Great Wall Business Building，76-78 Huli Avenue，Xiamen City
Consultation Hotline：86-0592-3799658、86-137 9991 1773（Switchboard）
Email : AOI@otek.com.cn
