Dontech manufactures a variety of transparent conductive coatings for EMI shielding, optical scanners, and transparent heater applications. Transparent conductive oxides such as indium tin oxide (ITO) and metals such as gold or silver are deposited via DC magnetron sputtering or ion enhanced e-beam evaporation on to rigid optical substrates such as glass, acrylic, polycarbonate and ADC.
Those coatings are also available on flexible films such as PET (polyethylene terephthalate) under Dontech’s VCF Series™ Transparent Conductive Films product family. Dontech VCF Series™ films are made in a wide range of resistivities and are ideal for low cost solutions, including optical EMI/RFI shielding of electronic displays and enclosures used in medical, military and industrial applications.
VCF Series™ product features are as follows:
Transparent conductive coatings (single or multi-layer) on PET (polyester) based films; high visible light transmission (> 80%) with low photopic reflection
Effective EMI/RFI shielding for electronic displays, touch screens, enclosures
Reduced IR transmission for solar loading protection of displays
Variety of product configurations available including rolls, sheets, and cut-to-size
Optical pressure-sensitive adhesive (PSA) can be applied to the uncoated film surface
Conductive coatings can be deposited over hard coatings (e.g., antiglare or gloss) or directly on PET
Protective maskings can be applied to front and/or rear surfaces
EMI Attenuation Data
VCF is Dontech’s designation for vacuum deposited visually transparent conductive coatings on flexible optical film. The conductive film coatings are constructed in two formats: transparent conductive oxides (TCO), and multi-layer coatings of TCO and metallic layers. The product designations include the VCF prefix followed by the maximum resistance, measured in ohms per square. For example, a VCF-27 is a transparent conductive oxide (TCO) which has a maximum resistance of 27 ohms per square. Dontech’s VCF Series™ coatings are available for complete product solutions.
R = Roll (24″, 48″ and custom widths) and sold by square foot
S = sheets (24″ x 24″)
C = cut to size
For additional information on transparent conductive films, please contact a Dontech applications engineer, download a copy of the VCF Series™ data sheet, or request that a hard copy of the data sheet be sent to you.