TOUCH PANEL

摘要

A touch panel has a substrate on which a first conductive layer, an insulating layer, a second conductive layer and a protective layer are formed in order. The second conductive layer and the first conductive layer form a touch-sensing area. The protective layer and the substrate have the same refractive index; and the first conductive layer, the insulating layer and the second conductive layer have the same refractive index so that the whole layered structure substantially has a symmetrical distribution of refractive indices, and leading to having optical characteristics of high transmittance and low reflectance.

主权项

1. A touch panel comprising:
a substrate having a first refractive index; a first conductive layer having a second refractive index and being patterned and formed on the substrate; an insulating layer having a third refractive index and covering the first conductive layer; a second conductive layer having a fourth refractive index and being patterned and formed on the insulating layer to constitute a touch-sensing area with the first conductive layer; and a protective layer having a fifth refractive index and covering the second conductive layer, wherein the first refractive index and the fifth refractive index fall between 1.5 and 1.6, the second refractive index, the third refractive index and the fourth refractive index fall between 1.7 and 2.2, so that a multi-layer structure constituted by at least the substrate, the first conductive layer, the insulating layer, the second conductive layer and the protective layer has a symmetrical distribution of refractive index.