Copper touch sensor for touch panels
TOPPAN has developed the copper sensor film for projected capacitive (PCAP) touch panels, utilizing its microfabrication technologies for electronics products.
Improved operatability, increase in size and decrease in weight are achieved by lowering the resistance level by using copper as elecetrode material.
Features
This touch sensor film is developed for PCs, large displays and digital signage. Cu film is patterned by advanced etching technology to form hi-definition electrode. Moreover black treatment was carried out on the copper (electrode) to improve visibility and contrast.
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→ Increase in size, Noise resistance, High speed, Narrow bezel |
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→ High visibility |
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→ Improved contrast |
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→ Narrow bezel, Stable quality, Shorter processes (low cost) |
Specification
| Base Material |
： PET（50μm,100μm） |
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| Pattern | Minimum line width |
： Sensor part 3μm |
| Minimum line width |
： Wiring part 15μm |
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| Minimum gap |
： Wiring part 20μm |
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| performance | Resistance value | ： State of mesh pattern 5Ω |
| Transmission rate | ： State of touch panel 88% | |
| Haze value | ： State of touch panel 1.5% | |
| Blackening treatment | ： 4 surface blackening treatment | |
| Maximum size | ： ～60inch（Maximum width = 800mm） | |