公开(公告)号：US20220382098A1

公开(公告)日：2022-12-01

申请号：US17752561

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 a layer on an opposite side of a touch surface with respect to the first substrate, a transmitter electrode formed on a layer on an opposite side of the touch surface with respect to the plurality of color filters, a receiver electrode formed on a layer closer to the touch surface side with respect to the plurality of color filters, and a second substrate, a pixel electrode being disposed on the second substrate. The transmitter electrode includes a gap portion formed in a portion overlapping a space between adjacent ones of the plurality of color filters in a plan view.

公开(公告)号：US20220283703A1

公开(公告)日：2022-09-08

申请号：US17685876

申请日：2022-03-03

Applicant: Sharp Display Technology Corporation

Inventor： Kazutoshi KIDA ,  Yasuhiro SUGITA

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device includes a plurality of drive electrodes, a plurality of detection electrodes, and a touch detection driver configured to supply a drive signal for self-capacitance detection to the plurality of detection electrodes and acquire a self-capacitance detection signal from the plurality of detection electrodes. The touch detection driver is configured to supply the drive signal for self-capacitance detection to at least one of the plurality of detection electrodes while the gate signal is being supplied to gate lines overlapping any one of the plurality of drive electrodes.

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：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.

公开(公告)号：US20230073370A1

公开(公告)日：2023-03-09

申请号：US17903744

申请日：2022-09-06

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch panel includes a transmission electrode layer that includes a transmission electrode to which a drive signal is supplied, a reception electrode layer that includes a position detection electrode and a pressing force detection electrode that form capacitance between the transmission electrode layer and themselves, in accordance with the capacitance, at least one of touching and pressing force is detected. The touch panel further includes a pressure-sensitive layer interposed between the transmission electrode layer and the reception electrode layer. The pressure-sensitive layer includes a first dielectric layer of which dielectric constant exhibits negative temperature properties in a predetermined temperature range, and a second dielectric layer of which dielectric constant exhibits positive temperature properties in the predetermined temperature range.

公开(公告)号：US20220326797A1

公开(公告)日：2022-10-13

申请号：US17712433

申请日：2022-04-04

Applicant: Sharp Display Technology Corporation

Inventor： Kazutoshi KIDA ,  Yasuhiro SUGITA

IPC: G06F3/041 ,  G02F1/1368 ,  G02F1/1362 ,  G06F3/044

Abstract: A display device includes a switching element that switches, based on data held by a memory circuit, between a state in which a pixel electrode and a first wiring line are connected to each other and a state in which the pixel electrode and a second wiring line are connected to each other, a power source circuit for white color that supplies a first signal having the opposite phase to a phase of a drive signal, to the first wiring line provided at a pixel in which a Tx electrode is disposed, and a power source circuit for black color that supplies, to the second wiring line, a second signal having the same phase as the phase of the drive signal.