Patent ID: 7867634

Claim:
An ITO layer structure in sequence comprising: an ITO layer; a first anti-reflected layer; a transparent substrate; and a second anti-reflected layer, wherein the first anti-reflected layer in sequence comprising: a first oxide layer is made of SiO 2 and has a refractive index between 1.40˜1.50 at a visible light wavelength of 520˜550 nm and a physical thickness between 30˜60 nm; a second oxide layer is selected from the group consisted of TiO 2 NbO and Ta 2 O 5 and has a refractive index between 2.1˜2.3 at a visible light wavelength of 520˜550 nm and a physical thickness between 30˜80 nm; and a third oxide layer is a mixture material of SiO 2 and NbO and has a refractive index between 1.9˜2.1 at a visible light wavelength of 520˜550 nm and a physical thickness between 40˜80 nm.