公开(公告)号：US20240028168A1

公开(公告)日：2024-01-25

申请号：US18219747

申请日：2023-07-10

Applicant: Sharp Display Technology Corporation

Inventor： Takenori MARUYAMA ,  Kazutoshi KIDA ,  Shinji YAMAGISHI ,  Takuma YAMAMOTO ,  Yasuhiro SUGITA ,  Hiroshi FUKUSHIMA

IPC: G06F3/044

CPC classification number: G06F3/0443 ,  G06F3/0446 ,  G06F2203/04105

Abstract: A touch panel includes: a drive electrode supplied with a drive signal; a position detecting electrode detecting a position included in a touch surface and touched with a pointing object, and a pressure detecting electrode detecting pressure applied on the touch surface with the pointing object, the position detecting electrode and the pressure detecting electrode being disposed across the drive electrode from the touch surface; and a floating electrode having a floating potential. The position detecting electrode, the pressure detecting electrode, and the floating electrode are formed in a layer.

公开(公告)号：US20250140087A1

公开(公告)日：2025-05-01

申请号：US18910229

申请日：2024-10-09

Applicant: Sharp Display Technology Corporation

Inventor： Masafumi UENO ,  Tomonori YOSHIDA ,  Takuma YAMAMOTO ,  Yasuhiro SUGITA

IPC: G08B6/00 ,  A61N1/04

Abstract: A tactile sensation presenting device includes: a tactile sensation presenting section having a plurality of electrodes to present a tactile sensation by electrical stimulation at a specific portion of a user; and a control section capable of controlling the tactile sensation presenting section to provide electrical stimulation using at least one of the plurality of electrodes as an anode and at least another one of the plurality of electrodes as a cathode. The control section measures a flowability of an electric current through the specific portion of the user and adjusts an execution mode of the electrical stimulation based on a result of the measurement.

公开(公告)号：US20240302923A1

公开(公告)日：2024-09-12

申请号：US18434832

申请日：2024-02-07

Applicant: Sharp Display Technology Corporation

Inventor： Takuma YAMAMOTO ,  Takenori MARUYAMA ,  Shinji YAMAGISHI ,  Kazutoshi KIDA ,  Yasuhiro SUGITA ,  Hiroshi FUKUSHIMA

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0414

Abstract: Provided is a touch panel system including a touch panel and a controller. The controller includes a signal acquisition unit that acquires a signal value from a position detection electrode and acquires a signal value from a pressing force detection electrode, a position detection unit that detects a position of a pointer, based on a position signal value acquired by the signal acquisition unit, and a pressing force determination unit that determines a presence or absence of a pressing operation at a pointed position. The pressing force determination unit acquires a second derivative value of a pressing force value and determines the presence or absence of the pressing operation at the pointed position, based on the second derivative value.