Patent ID: 9552092
Date: 2017-01-24
CPC Classifications: G02F,G06F,Y10T

Claim:
1. A display device comprising: a pixel electrode electrically connected to a thin film transistor disposed on a first substrate; a protruding portion protruding from a second substrate and overlapping the thin film transistor; a piezoelectric element disposed on the second substrate and overlapping the protruding portion; a first sensing electrode overlapping the piezoelectric element; and a second sensing electrode overlapping the first sensing electrode, wherein the first sensing electrode and the second sensing electrode intersect at a position corresponding to the protruding portion and the thin film transistor, wherein the piezoelectric element, the first sensing electrode, and the second sensing electrode that are disposed on the second substrate are separated from the thin film transistor that is disposed on the first substrate by the protruding portion, and wherein the first sensing electrode and the second sensing electrode are configured to transfer a sensing voltage generated by the piezoelectric element in response to a pressure applied to the piezoelectric element caused by a touch.