公开(公告)号：US20210026484A1

公开(公告)日：2021-01-28

申请号：US16981818

申请日：2018-12-12

Applicant: HiDeep Inc.

Inventor： Bon Kee KIM ,  Hyuk Jae CHOI ,  Myung Jun JIN

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch input device according to an embodiment is capable of detecting a pressure of a touch on a touch surface and may include: a display module; and a pressure sensor which is disposed at a position where a distance from a reference potential layer may vary according to the touch for the touch surface, the distance is changeable according to a pressure magnitude of the touch, the pressure sensor may output a signal including information on a capacitance which is changed according to the distance, the pressure sensor may include a plurality of electrodes to form a plurality of channel, and detect the magnitude of the pressure for the touch based on a change amount of a capacitance detected in the each channel and an SNR improvement scaling factor assigned to each of the channels.