What is ITO coating?

ITO coating refers to Indium Tin Oxide coating, which is a solution consisting of indium, oxygen and tin – i.e. indium oxide (In2O3) and tin oxide (SnO2).

Typically encountered in an oxygen-saturated form consisting of (by weight) 74% In, 8% Sn and 18% O2, indium tin oxide is an optoelectronic material that is yellowish-grey in bulk form and colorless & transparent when applied in thin film layers.

Now among the most commonly utilized transparent conducting oxides due to its excellent optical transparency & electrical conductivity, indium tin oxide can be vacuum deposited onto substrates including glass, polyester, polycarbonate and acrylic.

At wavelengths ranging between 525 and 600 nm, 20 ohms/sq. ITO coatings on polycarbonate and glass have respective typical peak light transmissions of 81% and 87%.

Classification & Application

High resistance glass (resistance value is 150~500 ohms) – is generally used for electrostatic protection and touch screen production.

Ordinary resistance glass (resistance value is 60~150 ohms) – s generally used for TN liquid crystal display and electronic anti-interference.

Low resistance glass (resistance less than 60 ohms) – is generally used for STN liquid crystal display and transparent circuit board.

Post time: Aug-09-2019

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