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.

公开(公告)号：US20220236817A1

公开(公告)日：2022-07-28

申请号：US17568879

申请日：2022-01-05

Applicant: Sharp Display Technology Corporation

Inventor： Kazutoshi KIDA ,  Yasuhiro SUGITA

IPC: G06F3/044 ,  G06F3/041

Abstract: A display device includes pixel electrode groups and a touch detection driver. During a period, the touch detection driver does not supply touch detection driving signals to a transmitter electrode overlapping in plan view a pixel electrode group to which gate signals are being supplied, and supply touch detection driving signals to a transmitter electrode disposed so as to overlap in plan view a pixel electrode group to which gate signals are not being supplied.

公开(公告)号：US20240264687A1

公开(公告)日：2024-08-08

申请号：US18413377

申请日：2024-01-16

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/041 ,  G06F1/16 ,  G06F3/02

CPC classification number: G06F3/0412 ,  G06F1/1607 ,  G06F3/0227

Abstract: An attachment is attachable to and detachable from a touch panel of an input device including the touch panel, and supports user operation on the input device by being attached to the touch panel. The attachment includes one or more operation units that receive user operation and transmit the user operation to a corresponding position of the touch panel when attached to the touch panel.

公开(公告)号：US20240231498A1

公开(公告)日：2024-07-11

申请号：US18522626

申请日：2023-11-29

Applicant: Sharp Display Technology Corporation

Inventor： Takuma YAMAMOTO ,  Yasuhiro SUGITA ,  Shinji YAMAGISHI

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/14

CPC classification number: G06F3/016 ,  G06F3/0416 ,  G06F3/14 ,  G06F3/04886

Abstract: A haptic touch panel display includes: a display panel; a touch panel disposed on an upper surface of the display panel or in the display panel; a back bezel configured to support a lower surface of the display panel; a plurality of actuators; and a plurality of rigid bodies disposed between the back bezel and the plurality of actuators, each of the plurality of rigid bodies being positioned between one of the plurality of actuators and the back bezel.

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：US20220382099A1

公开(公告)日：2022-12-01

申请号：US17752574

申请日：2022-05-24

Applicant: Sharp Display Technology Corporation

Inventor： Kazutoshi KIDA ,  Kiyoshi MINOURA ,  Takashi SATOH ,  Shunsuke NOICHI ,  Yasuhiro SUGITA ,  Chiaki MINARI

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G06F3/041 ,  G06F3/044

Abstract: An in-cell touch panel device includes a first substrate, a plurality of color filters formed on an upper layer with respect to the first substrate and including a green color filter, a transmitter electrode formed on an upper layer with respect to the plurality of color filters, a receiver electrode formed on a lower layer with respect to the plurality of color filters, and a second substrate including a pixel electrode disposed on the second substrate. The transmitter electrode includes a gap portion formed in a portion overlapping the receiver electrode in a plan view and in a portion overlapping the green color filter in a plan view.

公开(公告)号：US20250138663A1

公开(公告)日：2025-05-01

申请号：US18890905

申请日：2024-09-20

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G06F3/044

Abstract: A touch panel system includes a touch panel and a controller. The touch panel includes an active matrix substrate, a color filter substrate, and a liquid crystal layer located between the active matrix substrate and the color filter substrate. The active matrix substrate includes a drive electrode and a detection electrode. The drive electrode and the detection electrode are disposed on a surface of the active matrix substrate which faces the liquid crystal layer. The color filter substrate includes a conductor. The conductor is disposed on a surface of the color filter substrate which faces the liquid crystal layer. The controller is configured to supply a drive signal to the drive electrode and obtain a signal value from the detection electrode and to detect a pressing force applied to the touch panel by an indicator, based on the signal value obtained from the detection electrode.

公开(公告)号：US20250085782A1

公开(公告)日：2025-03-13

申请号：US18829645

申请日：2024-09-10

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/01 ,  G08B6/00

Abstract: A tactile sensation presenting device includes a tactile sensation presenting section and a control section. The tactile sensation presenting section includes anodic and cathodic electrodes. The control section can switch each anodic electrode between a first state (anodic potential) and a second state (floating potential) and can switch each cathodic electrode between a third state (cathodic potential) and a fourth state (floating potential). The control section controls the tactile sensation presenting section such that at least any one of the anodic electrodes is in the first state, with the others in the second state, at least one of the cathodic electrodes at least within a distance of 1.0 mm or less from the first-state anodic electrode is in the fourth state, with the others in the third state, and a total area of the first-state anodic electrode and the third-state cathodic electrodes is equal to or greater than 0.7 cm2.

公开(公告)号：US20230315233A1

公开(公告)日：2023-10-05

申请号：US18128214

申请日：2023-03-29

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0445 ,  G06F3/0446 ,  G06F2203/04105 ,  G06F2203/04107

Abstract: A touch panel system includes a capacitive touch panel and a controller that controls the touch panel. The touch panel includes a plurality of drive electrodes and a plurality of floating island electrodes located on a first substrate and a plurality of pressure detection electrodes and a plurality of position detection electrodes located on a second substrate. The controller provides a drive signal to the drive electrodes and corrects a pressure detection signal obtained from each of the pressure detection electrodes by using a position detection signal obtained from the position detection electrode.