Patent ID: 9671637
Date: 2017-06-06
CPC Classifications: G02F,G06F,H01L,Y10T

Claim:
1. A touch screen substrate comprising: a base substrate; a light blocking pattern including an inorganic layer formed on the base substrate and a light blocking layer formed on the inorganic layer, the light blocking layer transmitting infrared light and absorbing visible light, the inorganic layer being disposed between the light blocking layer and the base substrate and contacting the light blocking layer and the base substrate; a residual layer formed on a portion of the base substrate; a first sensing element formed on the light blocking pattern and sensing the infrared light; and a first switching element electrically connected to the first sensing element, wherein the first switching element is formed on the residual layer, wherein the inorganic layer comprises silicon nitride or silicon oxide, wherein the inorganic layer has a first thickness, wherein the residual layer has a second thickness, and wherein the second thickness is smaller than the first thickness.