公开(公告)号：US20190384441A1

公开(公告)日：2019-12-19

申请号：US16464064

申请日：2016-11-24

Applicant: HiDeep Inc.

Inventor： Bong Jin Seo ,  Bon Kee Kim ,  Myung Jun Jin ,  Tae Hun Kim

IPC: G06F3/041 ,  G01R27/26 ,  G06F3/044

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 panel; a substrate disposed under the display panel; and a pressure sensing unit. The pressure sensing unit includes a pressure sensor and a reference pressure sensor. When a pressure is applied to the touch surface, the display panel is bent. Electrical characteristics detected at the pressure sensor change by the bending of the display panel. A magnitude of the pressure applied to the touch surface is calculated based on a difference between a reference electrical characteristic calculated from electrical characteristics detected at the reference pressure sensor and the detected electrical characteristic calculated from the electrical characteristics detected at the pressure sensor.

公开(公告)号：US11561636B2

公开(公告)日：2023-01-24

申请号：US16464064

申请日：2016-11-24

Applicant: HiDeep Inc.

Inventor： Bong Jin Seo ,  Bon Kee Kim ,  Myung Jun Jin ,  Tae Hun Kim

IPC: G06F3/041 ,  G06F3/044 ,  G01R27/26

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 panel; a substrate disposed under the display panel; and a pressure sensing unit. The pressure sensing unit includes a pressure sensor and a reference pressure sensor. When a pressure is applied to the touch surface, the display panel is bent. Electrical characteristics detected at the pressure sensor change by the bending of the display panel. A magnitude of the pressure applied to the touch surface is calculated based on a difference between a reference electrical characteristic calculated from electrical characteristics detected at the reference pressure sensor and the detected electrical characteristic calculated from the electrical characteristics detected at the pressure sensor.