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公开(公告)号：US11880531B2
公开(公告)日：2024-01-23
申请号：US18109535
申请日：2023-02-14
Applicant: Japan Display Inc.
Inventor： Naosuke Furutani , Hayato Kurasawa , Makoto Hayashi
IPC: G06F3/045 , G06F3/041 , G02F1/1333 , G06F3/044 , G09G3/36 , G02F1/1335 , G02F1/1337 , G02F1/1343 , G02F1/1362 , G02F1/1368
CPC classification number: G06F3/04166 , G02F1/13338 , G02F1/13439 , G02F1/133514 , G02F1/133707 , G02F1/134309 , G02F1/136286 , G06F3/044 , G06F3/0412 , G06F3/0416 , G06F3/0445 , G06F3/0446 , G09G3/3607 , G09G3/3648 , G02F1/1368 , G02F1/133302 , G02F1/133345 , G02F1/134318 , G02F1/136213 , G02F2201/121 , G02F2201/123 , G06F2203/04103 , G09G2300/0426 , G09G2330/02
Abstract: A display device with a touch sensor having a display function and a touch sensor function is provided. The display device includes a first substrate including a pixel electrode; a first electrode along a first direction; and a second substrate including a second electrode that includes patterns of electrodes along a second direction crossing the first direction and that faces the first electrode and the pixel electrode, wherein upon the display function being activated, the pixel electrode is supplied with a pixel signal, and the second electrode is supplied with common voltage, and upon the touch sensor function being activated, the first electrode is applied with a first signal and the second electrode is configured to receive the first signal to be a second signal as a touch detecting signal.
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72.发明授权公开(公告)号：US11675456B2
公开(公告)日：2023-06-13
申请号：US17833954
申请日：2022-06-07
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Hiroshi Mizuhashi , Fumitaka Gotoh , Gen Koide , Tadayoshi Katsuta
CPC classification number: G06F3/04166 , G06F3/046 , G06F3/0412 , G06F3/0446 , G06F2203/04111
Abstract: According to an aspect, a display apparatus includes: a substrate; a plurality of pixel electrodes; a plurality of detection electrodes arranged in a matrix in a display area of the substrate; a plurality of detection electrode lines coupled to the respective detection electrodes; a plurality of first electrodes provided in the same layer as the detection electrodes or the detection electrode lines and extending in a first direction; a plurality of switching elements coupled to the respective pixel electrodes; a plurality of signal lines coupled to the switching elements and extending in a second direction crossing the first direction; a coupling member provided in a peripheral area outside the display area and configured to couple ends of the first electrodes to each other; and a drive circuit configured to output a first drive signal in a first sensing period in which an electromagnetic induction method is used.
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公开(公告)号：US11604536B2
公开(公告)日：2023-03-14
申请号：US17165596
申请日：2021-02-02
Applicant: Japan Display Inc.
Inventor： Naosuke Furutani , Hayato Kurasawa , Makoto Hayashi
IPC: G06F3/045 , G06F3/041 , G02F1/1333 , G06F3/044 , G09G3/36 , G02F1/1335 , G02F1/1337 , G02F1/1343 , G02F1/1362 , G02F1/1368
Abstract: A display device with a touch sensor having a display function and a touch sensor function is provided. The display device includes a first substrate including a pixel electrode; a first electrode along a first direction; and a second substrate including a second electrode that includes patterns of electrodes along a second direction crossing the first direction and that faces the first electrode and the pixel electrode, wherein upon the display function being activated, the pixel electrode is supplied with a pixel signal, and the second electrode is supplied with common voltage, and upon the touch sensor function being activated, the first electrode is applied with a first signal and the second electrode is configured to receive the first signal to be a second signal as a touch detecting signal.
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公开(公告)号：US11562595B2
公开(公告)日：2023-01-24
申请号：US17187101
申请日：2021-02-26
Applicant: Japan Display Inc.
Inventor： Fumihito Shibano , Hiroshi Mizuhashi , Toshinori Uehara , Kimiyo Nonoyama , Hayato Kurasawa
Abstract: A fingerprint sensor is provided and includes substrate; sensor electrodes on substrate; first switches coupled to sensor electrodes; organic layer covering sensor electrodes; control line drive circuit in first direction; signal line drive circuit in second direction orthogonal to first direction; signal lines coupled to first switches; control lines coupling first switches to control line drive circuit; sensor drive electrode surrounding sensor electrodes; second switches between signal line drive circuit and signal lines; and first number of third switches between signal line drive circuit and first number of second switches, wherein distance of sensor drive electrode from surface of substrate is larger than distance of sensor electrodes from surface of substrate, and wherein first number is less than number of all second switches.
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公开(公告)号：US11537231B2
公开(公告)日：2022-12-27
申请号：US17018743
申请日：2020-09-11
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Koji Ishizaki , Kohei Azumi
Abstract: A display device is provided and includes a first substrate; a second substrate opposed to the first substrate; a liquid crystal layer between the first substrate and the second substrate; a plurality of detection electrodes, the second substrate being located between the detection electrodes and the liquid crystal layer; a shield electrode apart from the detection electrodes in a plane view, the second substrate being located between the shield electrode and the liquid crystal layer; and a resistive layer overlapping the detection electrodes and the shield electrode, the detection electrodes and the shield electrode located between the resistive layer and the second substrate.
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Patent Agency Ranking
公开(公告)号：US11520426B2
公开(公告)日：2022-12-06
申请号：US17514655
申请日：2021-10-29
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Yasuyuki Teranishi
Abstract: A detection apparatus is provided and includes touch detection surface serving as detection region having two dimensions; first electrodes arranged in first and second directions in the two dimensions; and connection lines connected to first electrodes in one-to-one manner and connected to signal output unit, base electrode opposed to first electrodes with predetermined gap there between, electrode driver configured to provide drive signal and force signal to first electrodes, wherein signal output unit is configured to output first signal indicating position where touch operation has been performed when drive signal is provided to first electrodes, first signal being represented by self-capacitances of first electrodes, and to output second signal indicating force that is applied to detection region when force signal is provided to first electrodes and that brings first electrodes close to base electrode, second signal is signal based on electrostatic capacitances obtained by individual detection, and individual detection is such that detection of each of the electrostatic capacitances between base electrode and first electrodes is individually performed.
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公开(公告)号：US11373611B2
公开(公告)日：2022-06-28
申请号：US16926137
申请日：2020-07-10
Applicant: Japan Display Inc.
Inventor： Kazuyuki Kobayashi , Hayato Kurasawa , Hiroshi Mizuhashi , Masaya Tamaki , Takeo Koito , Koji Noguchi
Abstract: A sensor-equipped display device is provided and includes display panel including first and second substrates, common electrode, and polarizer; backlight unit which emits light toward display panel, including light guide opposed to polarizer and light source which emits light toward light guide; conductive member arranged at back side of display panel and opposed to polarizer; controller; first flexible printed circuit; and second flexible printed circuit, wherein first flexible printed circuit is connected to display panel, second flexible printed circuit is connected to back side of first flexible printed circuit, common electrode is connected to controller via first flexible printed circuit, second flexible printed circuit comprises first branch portion and second branch portion, first branch portion is connected to light source, and conductive member is connected to controller via second branch portion of second flexible printed circuit and first flexible printed circuit.
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公开(公告)号：US11226680B2
公开(公告)日：2022-01-18
申请号：US16918561
申请日：2020-07-01
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Yoshiharu Nakajima
IPC: G06F3/041 , G09G3/34 , G06F3/01 , G02F1/167 , G02F1/1676 , G02F1/16766 , G06F3/044
Abstract: In a display apparatus provided with an electrophoresis layer, such a display apparatus capable of operating a driving electrode for use in displaying an image as an electrode for use in detecting an input position is provided. A display apparatus includes: a substrate; another substrate that is disposed so as to face the substrate; an electrophoresis layer sandwiched between the substrate and another substrate; a plurality of pixel electrodes formed on the substrate; and a plurality of driving electrodes formed on another substrate. An electric field is formed between each of the plurality of pixel electrodes and each of the plurality of driving electrodes, so that an image is displayed, and an input position is detected based on an electrostatic capacitance of each of the plurality of driving electrodes.
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公开(公告)号：US11106302B2
公开(公告)日：2021-08-31
申请号：US16859286
申请日：2020-04-27
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa
Abstract: A display device with a touch detection function is provided and includes a substrate; pixel electrodes including first and second pixel electrodes; drive electrodes including first and second drive electrodes; a display function layer that exerts an image display function based on a pixel signal; a drive electrode driver configured to apply a touch driving signal for touch detection or a common signal for display to the respective drive electrodes; and a source driver configured to apply the pixel signal to the respective pixel electrodes, wherein when the pixel and common signals are provided, the second pixel electrode is in a floating state and the touch driving signal is provided to the second drive electrode, thereby enabling image display function on a first sub-pixel corresponding to first pixel and drive electrodes and touch detection function on a second sub-pixel corresponding to second pixel and drive electrodes to occur concurrently.
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公开(公告)号：US11073930B2
公开(公告)日：2021-07-27
申请号：US16741857
申请日：2020-01-14
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Hayato Kurasawa , Yoshitoshi Kida , Toshinori Uehara , Takayuki Nakanishi
Abstract: A display device comprises a first power supply line supplying a first potential, a second power supply line supplying a second potential, a third power supply line supplying a touch driving signal, and a display unit including a plurality of sub-pixels. The display unit comprises a plurality of first electrodes respectively provided in the plurality of sub-pixels and electrically connected to the first power supply line, a second electrode provided to be common among the plurality of sub-pixels and electrically connected to the second power supply line, a light emitting layer provided between the first electrode and the second electrode, a plurality of third electrodes electrically connected to the third power supply line, and a signal control circuit supplying a signal synchronized with a touch driving signal to the second electrode in a period in which a touch driving signal is supplied to the plurality of third electrodes.
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