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Display-related Products, Copper Touch Sensor

Touch panel realizes the intuitive operation without using key board or mouse.
Toppan has developed the copper sensor film for projected capacitive (PCAP) touch panels, utilizing its microfabrication technologies for electronics products.
Microfabricated electrode array glass or film picks up the precise finger movement.

Copper Touch Panels

Copper Touch Sensor

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.

Copper Touch Panel Module

Characteristics of Copper Touch Sensor

Toppan’s original 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, Toppan’s own black treatment was carried out on the copper (electrode) to improve visibility and contrast.

Copper Touch Panel Module

[Features]
  • Low impedance

Increase in size, Noise resistance, High speed, Narrow bezel

  • High transmission rate

High visibility

  • Copper blackening treatment

Improved contrast

  • Form electrode & take-out wire in one process

Narrow bezel, Stable quality, Shorter processes (low cost)

[Specification] Base Material

PET(50μm,100μm)

Pattern Minimum line width

Sensor part 3μm

Minimum line width

Wiring part 15μm

Minimum gap

Wiring part 20μm

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)

Copper Touch Panel Module

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