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公开(公告)号：US11726361B2
公开(公告)日：2023-08-15
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 , G06F3/044 , G06F3/041
CPC classification number: G02F1/13338 , G06F3/0444 , G06F3/0446 , G06F3/04164
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.
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公开(公告)号：US11693510B2
公开(公告)日：2023-07-04
申请号：US17722155
申请日：2022-04-15
Applicant: Sharp Display Technology Corporation
Inventor： Takenori Maruyama , Kazutoshi Kida , Shinji Yamagishi , Takuma Yamamoto , Yasuhiro Sugita , Hiroshi Fukushima
CPC classification number: G06F3/041662 , G06F3/0412 , G06F3/0414 , G06F3/0445 , G06F2203/04105
Abstract: A touch panel system includes a touch panel including a drive electrode, a position detection electrode, and a pressing detection electrode, and a controller configured to impart a drive signal to the drive electrode and acquire signal values from each of the position detection electrode and the pressing detection electrode. The controller detects a position of an indicator on the basis of the signal values obtained from the position detection electrode and calculates a magnitude of pressing of the indicator on the basis of signal values in a pressing detection range corresponding to the detected position of the indicator among the signal values obtained from the pressing detection electrode.
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公开(公告)号：US20240427452A1
公开(公告)日：2024-12-26
申请号：US18671907
申请日：2024-05-22
Applicant: Sharp Display Technology Corporation
Inventor： Kazutoshi Kida
Abstract: A touch panel includes a first touch detection electrode including a first main portion and a first sub-portion, a second touch detection electrode including a second main portion and a second sub-portion, a first connecting line that connects the first main portion and the first sub-portion, and a second connecting line that connects the second main portion and the second sub-portion. The first sub-portion is disposed away from the first main portion. The second sub-portion is disposed away from the second main portion. The first and second sub-portions are disposed between the first and second main portions. The first and second connecting lines are formed in a layer that is a different layer from a layer in which the first and second touch detection electrodes are formed.
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公开(公告)号：US20220342540A1
公开(公告)日：2022-10-27
申请号：US17722155
申请日：2022-04-15
Applicant: Sharp Display Technology Corporation
Inventor： Takenori Maruyama , Kazutoshi Kida , Shinji Yamagishi , Takuma Yamamoto , Yasuhiro Sugita , Hiroshi Fukushima
Abstract: A touch panel system includes a touch panel including a drive electrode, a position detection electrode, and a pressing detection electrode, and a controller configured to impart a drive signal to the drive electrode and acquire signal values from each of the position detection electrode and the pressing detection electrode. The controller detects a position of an indicator on the basis of the signal values obtained from the position detection electrode and calculates a magnitude of pressing of the indicator on the basis of signal values in a pressing detection range corresponding to the detected position of the indicator among the signal values obtained from the pressing detection electrode.
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公开(公告)号：US12282621B2
公开(公告)日：2025-04-22
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
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.
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Patent Agency Ranking
公开(公告)号：US11966542B2
公开(公告)日：2024-04-23
申请号：US18126826
申请日：2023-03-27
Applicant: Sharp Display Technology Corporation
Inventor： Kazutoshi Kida , Takenori Maruyama
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.
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公开(公告)号：US11947749B2
公开(公告)日：2024-04-02
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: G06F3/041 , G02F1/1333 , G06F3/044 , G02F1/1335
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/0445 , G06F3/0446 , G02F1/133553
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.
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公开(公告)号：US11860468B2
公开(公告)日：2024-01-02
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: G02F1/13 , G02F1/1335 , G02F1/1333 , G02F1/1343 , G06F3/041 , G06F3/044 , G02F1/1362 , G02F1/133
CPC classification number: G02F1/133519 , G02F1/13338 , G02F1/133553 , G02F1/134309 , G02F1/136286 , G06F3/0412 , G06F3/0446 , G02F1/13306 , G02F2201/52
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.
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公开(公告)号：US11698556B2
公开(公告)日：2023-07-11
申请号：US17715085
申请日：2022-04-07
Applicant: Sharp Display Technology Corporation
Inventor： Koji Murata , Kosuke Nagata , Kazutoshi Kida , Kazutaka Hanaoka , Shinji Shimada , Yasuhiro Haseba
IPC: G02F1/1343 , G02F1/1362 , G02F1/13 , G02F1/1333 , G06F3/041 , G06F3/044
CPC classification number: G02F1/134372 , G02F1/1323 , G02F1/13338 , G02F1/133345 , G02F1/134336 , G02F1/134345 , G02F1/136286 , G06F3/0412 , G06F3/0446
Abstract: The liquid crystal display device includes a liquid crystal panel, the liquid crystal panel including sub-pixels and including an active matrix substrate and a counter substrate, the active matrix substrate including a gate line, a first electrode, and a second electrode, the counter substrate including a third electrode, each of the sub-pixels being provided with an optical opening, the third electrode including a linear electrode extending along the gate line, a distance between the linear electrode and the optical opening being less than D/4 and a width of the linear electrode being D/4 or less, wherein a distance between two optical openings adjacent in the direction perpendicular to the extending direction of the gate line is defined as D.
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公开(公告)号：US12118164B2
公开(公告)日：2024-10-15
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
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.
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