Display device including touch sensor and manufacturing method thereof

摘要

The present disclosure relates to a display device including a touch sensor and a manufacturing method thereof, and more particularly, to a display device including a touch sensor using a piezoelectric material and a manufacturing method thereof. The display device includes a first substrate, wherein a plurality of thin film transistors are disposed on the first substrate; a second substrate disposed facing the first substrate; a plurality of piezoelectric elements disposed on the second substrate; and a first sensing electrode overlapping the piezoelectric elements, the first sensing electrode being configured to transfer a sensing voltage generated as a result of pressure applied to the piezoelectric elements.

主权项

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.