公开(公告)号：US20220058365A1

公开(公告)日：2022-02-24

申请号：US17517109

申请日：2021-11-02

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Kazuki MATSUNAGA ,  Toshiyuki HIGANO ,  Kazuhiro NISHIYAMA

IPC: G06K9/00 ,  H01L27/146

Abstract: According to an aspect, a detection device includes a plurality of light-receiving elements configured to receive light, and a light guide portion one surface of which faces the light-receiving elements. The light guide portion includes a plurality of light guide paths provided throughout from the one surface to the other surface of the light guide portion, and a light-absorbing portion having higher absorbance of the light than that of the light guide paths. When viewed from a direction in which the light-receiving elements and the light guide portion are stacked, more than one of the light guide paths overlap one of the light-receiving elements.

公开(公告)号：US20250023252A1

公开(公告)日：2025-01-16

申请号：US18898739

申请日：2024-09-27

Applicant: Japan Display Inc.

Inventor： Kazuki MATSUNAGA ,  Shinichiro OKA ,  Mitsutaka OKITA ,  Daiichi SUZUKI

IPC: H01Q15/14 ,  H01Q3/34 ,  H01Q21/08

Abstract: A reflecting device includes a plurality of patch electrodes arranged in a first direction and in a second direction intersecting the first direction, and a common wiring connecting the plurality of patch electrodes in series in an array along the first direction. Each of the plurality of patch electrodes comprises a first length along the first direction and a second length along the second direction, and the first length is longer than the second length.

公开(公告)号：US20240290131A1

公开(公告)日：2024-08-29

申请号：US18659231

申请日：2024-05-09

Applicant: Japan Display Inc.

Inventor： Kazuki MATSUNAGA ,  Akio TAKIMOTO ,  Shigesumi ARAKI

IPC: G06V40/13 ,  G06V40/145

CPC classification number: G06V40/13 ,  G06V40/145

Abstract: According to an aspect, a detection device includes: a plurality of photodiodes arranged on a substrate; a front light including a light guide plate disposed so as to overlap the photodiodes, a light source configured to emit light to a first side surface of the light guide plate, and a plurality of scattering portions that are provided on the light guide plate and configured to scatter light from the light source; an optical filter layer including at least one light-blocking layer that has a plurality of openings; and a plurality of lenses provided such that each of the photodiodes overlaps more than one of the lenses in plan view.

公开(公告)号：US20240290130A1

公开(公告)日：2024-08-29

申请号：US18659195

申请日：2024-05-09

Applicant: Japan Display Inc.

Inventor： Shigesumi ARAKI ,  Kazuki MATSUNAGA ,  Akio TAKIMOTO

IPC: G06V40/13 ,  G06V40/145

CPC classification number: G06V40/13 ,  G06V40/145 ,  G06V2201/03

Abstract: According to an aspect, a detection device includes: photodiodes arranged on a substrate; and a front light comprising a light guide plate disposed so as to overlap the photodiodes, a first light source configured to emit first light to a first side surface of the light guide plate, a second light source configured to emit second light having the same wavelength as that of the first light to a second side surface of the light guide plate opposite to the first side surface, a third light source configured to emit third light having a wavelength different from that of the first light to a third side surface of the light guide plate different from the first and second side surfaces, and scattering portions provided on the light guide plate and configured to scatter light from any of the first light source, the second light source, and the third light source.

公开(公告)号：US20220317496A1

公开(公告)日：2022-10-06

申请号：US17701980

申请日：2022-03-23

Applicant: Japan Display Inc.

Inventor： Kazuki MATSUNAGA

IPC: G02F1/1333 ,  F21V8/00 ,  G06V40/13 ,  G02F1/1335

Abstract: A display device includes a display panel, a plurality of light-receiving elements that are located inside a display region of the display panel as viewed from a normal direction of the display panel, and are configured to receive light, and a light guide provided so as to overlap the light-receiving elements. The light guide comprises light guide paths at least partially overlapping the light-receiving elements, and comprises a light-blocking portion having higher absorbance of the light than that of the light guide paths, and the light guide paths are inclined in a predetermined first direction with respect to the normal direction of the display panel.

公开(公告)号：US20200274082A1

公开(公告)日：2020-08-27

申请号：US15930573

申请日：2020-05-13

Applicant: Japan Display Inc.

Inventor： Kazuki MATSUNAGA

IPC: H01L51/00 ,  H01L27/32

Abstract: A flexible substrate includes a substrate having a first surface and a second surface opposite the first surface, an array part arranged on the first surface of the substrate, a peripheral part arranged on the first surface of the substrate and located outside the array part, a terminal part arranged in the peripheral part and provided with a plurality of terminals, a protective member arranged on the second surface of the substrate. The second surface of the substrate has a first region including a region overlapping the terminal part, and the protective member has a first opening exposing the first region.

公开(公告)号：US20230378383A1

公开(公告)日：2023-11-23

申请号：US18227785

申请日：2023-07-28

Applicant: Japan Display Inc.

Inventor： Kazuki MATSUNAGA ,  Shigesumi ARAKI

IPC: H01L31/0232 ,  H01L31/10

CPC classification number: H01L31/0232 ,  H01L31/10

Abstract: According to an aspect, a detection device includes: a first substrate; a plurality of photodiodes provided on the first substrate; and an optical filter layer including a plurality of light-transmitting regions provided so as to overlap the respective photodiodes, a light-blocking region provided between the light-transmitting regions, and a projection projecting from a surface of the light-blocking region facing the first substrate.

公开(公告)号：US20230298379A1

公开(公告)日：2023-09-21

申请号：US18119931

申请日：2023-03-10

Applicant: Japan Display Inc.

Inventor： Kazuki MATSUNAGA ,  Shigesumi ARAKI ,  Yasushi TOMIOKA

IPC: G06V40/13

CPC classification number: G06V40/1318 ,  G06V40/1324

Abstract: An optical sensor capable of obtaining a plurality of types of information by a plurality of wavelengths in a short time is provided. The optical sensor includes a light receiving unit that includes a first and second pinhole layer that includes a plurality of pinholes, a first and second transmission layer, and a plurality of microlenses belonging to a first and second group, the microlenses being disposed at positions respectively overlapping the plurality of pixels on the second transmission layer. Either of the plurality of microlenses belonging to the first or second group is a first wavelength selection unit that transmits light of a first wavelength. At least one of the other of the plurality of microlenses belonging to the first and second group, the first transmission layer, and the second transmission layer is a second wavelength selection unit that transmits light of a second wavelength.

公开(公告)号：US20230170367A1

公开(公告)日：2023-06-01

申请号：US18070565

申请日：2022-11-29

Applicant: Japan Display Inc.

Inventor： Kazuki MATSUNAGA ,  Shigesumi ARAKI ,  Yasushi TOMIOKA

IPC: H01L27/146 ,  G02B5/28

CPC classification number: H01L27/14625 ,  G02B5/28 ,  G02B2207/123

Abstract: An optical sensor includes a light receiving part including a plurality of pixels and receiving light from a measuring object, the pixels being disposed in a matrix along a first direction and a second direction, and a louver film in which a first layer and a second layer are laminated, the first layer including a transmissive portion that transmits light of a predetermined wavelength band and a light shielding portion that spiels light, the transmissive portion and the light shielding portion being alternately disposed along the first direction, the second layer including the transmissive portion and the light shielding portion that are alternately disposed along the second direction. The transmissive portion included in one of the first layer and the second layer includes a first wavelength selecting unit that transmits light of a first wavelength band and a second wavelength selecting unit that transmits light of a second wavelength band.

公开(公告)号：US20220229329A1

公开(公告)日：2022-07-21

申请号：US17578723

申请日：2022-01-19

Applicant: Japan Display Inc.

Inventor： Tomoyuki ITO ,  Kazuki MATSUNAGA ,  Shigesumi ARAKI ,  Kazuhide MOCHIZUKI

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/1333 ,  G06V40/13

Abstract: According to one embodiment, a display device comprises a collimating layer including first to third openings, first to third color filters overlaid on the first to third openings, respectively, a first sensor outputting a first detection signal corresponding to light made incident through the first opening and the first color filter, a second sensor outputting a second detection signal corresponding to light made incident through the second opening and the second color filter, and a third sensor outputting a third detection signal corresponding to light made incident through the third opening and the third color filter.