公开(公告)号：US20230060098A1

公开(公告)日：2023-02-23

申请号：US17886521

申请日：2022-08-12

Applicant: Sharp Display Technology Corporation

Inventor： Kosuke NAGATA ,  Kazutoshi KIDA ,  Daiji KITAGAWA

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

Abstract: An in-cell touch panel includes a mode switching control circuit and a counter substrate electrode control circuit. The mode switching control circuit switches, in a time-division manner, the operation mode of the in-cell touch panel between a display mode in which a display signal is supplied by a display control circuit to pixel electrodes, and a touch detection mode in which a driving signal is supplied by a driving control circuit to touch sensor electrodes. The counter substrate electrode control circuit supplies a counter substrate electrode with a signal that is in synchronization with the driving signal and that has the same polarity as that of the driving signal in a period while the in-cell touch panel is in the touch detection mode, or causes the potential of the counter substrate electrode to be in a floating state in a period while the in-cell touch panel is in the touch detection mode.

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：US20230315232A1

公开(公告)日：2023-10-05

申请号：US18126826

申请日：2023-03-27

Applicant: Sharp Display Technology Corporation

Inventor： Kazutoshi KIDA ,  Takenori MARUYAMA

IPC: G06F3/041 ,  G06F3/044

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

Abstract: A touch panel system includes a capacitive touch panel and a controller that controls the touch panel. The touch panel includes drive electrodes and floating island electrodes located on a first substrate and position detection electrodes, pressure detection electrodes, and heat detection electrodes located on a second substrate. The drive electrode overlaps at least part of the heat detection electrode and at least part of the pressure detection electrode, and the floating island electrode overlaps at least part of the position detection electrode in plan view. The controller provides a drive signal to the drive electrodes and the heat detection electrodes and corrects a pressure detection signal obtained from each of the pressure detection electrodes by using a heat detection signal obtained from a change in a coupling capacitance between the pressure detection electrode and the heat detection electrode.

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：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：US20240272737A1

公开(公告)日：2024-08-15

申请号：US18414625

申请日：2024-01-17

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0446 ,  G06F2203/04105

Abstract: A touch panel system includes a touch panel including a drive electrode, a position detection electrode, and a pressure detection electrode, and a controller configured to impart a drive signal to the drive electrode and acquire a signal value from each of the position detection electrode and the pressure detection electrode. The controller is configured to detect a touch range by a pointer based on the signal value obtained from the position detection electrode, determine a pressure detection range corresponding to the touch range, of the signal value obtained from the pressure detection electrode, and calculate a magnitude of a pressure by the pointer based on the signal value in the pressure detection range.

公开(公告)号：US20230205386A1

公开(公告)日：2023-06-29

申请号：US18079776

申请日：2022-12-12

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/044

CPC classification number: G06F3/0448 ,  G06F2203/04105 ,  G06F2203/04107 ,  G06F3/0443

Abstract: A touch panel system includes a touch panel, a cover member overlapping the touch panel, and a controller. The controller includes a position detection unit configured to detect a position of a pointer, based on a signal value obtained from a position detection electrode, an amplification processing unit configured to perform amplification processing on at least one signal value in a pressing force detection range corresponding to the position of the pointer detected by the position detection unit among signal values obtained from a pressing force detection electrode, and a pressing force detection unit configured to calculate magnitude of a pressing force generated by the pointer, based on a signal value after the amplification processing being a signal value in the pressing force detection range including a signal value obtained by amplification by the amplification processing unit.

公开(公告)号：US20230096398A1

公开(公告)日：2023-03-30

申请号：US17947103

申请日：2022-09-17

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch panel include a cover member, a drive electrode, a pressure detecting electrode, and a position detecting electrode. The pressure detecting electrode and the position detecting electrode are alternately arranged in a first direction. The pressure detecting electrode includes a plurality of pressure detecting sections, arranged side by side in a second direction orthogonal to the first direction, that each independently detect a pressure. The position detecting electrode includes a plurality of position detecting sections, arranged side by side in the second direction, that each independently detect a touched position. The area of a pressure detecting section is larger than the area of a position detecting section.