公开(公告)号：US20190114004A1

公开(公告)日：2019-04-18

申请号：US16092022

申请日：2016-04-08

Applicant: HiDeep Inc.

Inventor： Hwan Hee LEE ,  Sang Sic YOON ,  Bon Kee KIM ,  Myung Jun JIN

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch input device capable of detecting a pressure of a touch on a touch surface may be provided. The touch input device includes: a display module; and a pressure sensor which is disposed at a position where a distance between the pressure sensor and a reference potential layer is changeable according to the touch on the touch surface. The distance is changeable according to a pressure magnitude of the touch. The pressure sensor outputs a signal including information on a capacitance which is changed according to the distance. The pressure sensor includes a plurality of electrodes to form a plurality of channels. The pressure magnitude of the touch is detected on the basis of a change amount of the capacitance detected in each of the channels and an SNR improvement scaling factor assigned to each of the channels.