Patent ID: 9710095
Date: 2017-07-18
CPC Classifications: B32B,G02F,G06F,H04M

Claim:
1. A multi-touch sensor panel, comprising: a transparent cover having a front side capable of being touched and a back side opposite the front side; a subassembly including: a substrate having a front surface adhered to the back side of the cover and a back surface, opposite the front surface for adhering to a liquid crystal display; a plurality of first traces of a first substantially transparent conductive material formed by patterning on the front surface of the substrate; and a plurality of second traces of a second substantially transparent material formed by patterning on the back surface of the substrate; and wherein the substrate forms a dielectric material between the plurality of first traces and the plurality of second traces; and wherein the plurality of first and the plurality of second traces are oriented to cross over each other at crossover locations separated by the dielectric material, the crossover locations forming mutual capacitance sensors for detecting one or more touches on the front side of the transparent cover; wherein an adhesive, distinct from the substrate, is used to adhere the subassembly to the back side of the transparent cover and to adhere at least a portion of the subassembly to the liquid crystal display; and wherein a passivation layer is disposed between the adhesive and the plurality of first traces and between the adhesive and the plurality of second traces.