Pressure sensing element and display device having the same

Abstract

A display device includes a pressure sensing element. The pressure sensing element senses a pressure input applied thereto from the outside, and the display device is controlled based on the sensed pressure input. The pressure sensing element includes a contact sensing area to sense the pressure input and a defect sensing area to sense a defect. The pressure sensing element measures a resistance value in the defect sensing area and identifies whether at least one of lines of the pressure sensing element is disconnected.

What is claimed is: 
     
         1 . A pressure sensing element comprising:
 a first base;   a first transmitting electrode disposed on the first base and comprising a first transmitting terminal and a plurality of first transmitting lines electrically connected to the first transmitting terminal;   a first receiving electrode disposed on the first base and comprising a first receiving terminal and a plurality of first receiving lines alternately arranged with the plurality of first transmitting lines and electrically connected to the first receiving terminal;   a first main pressure sensing layer disposed on the first transmitting electrode and the first receiving electrode and spaced apart from the first transmitting electrode and the first receiving electrode by a first set distance;   a first sub-pressure sensing layer disposed on the first transmitting electrode and the first receiving electrode and making contact with the first transmitting electrode and the first receiving electrode without overlapping the first main pressure sensing layer when viewed in a plan view; and   a second base disposed on the first main pressure sensing layer and the first sub-pressure sensing layer, making contact with the first main pressure sensing layer, and spaced apart from the first sub-pressure sensing layer by a second set distance.