公开(公告)号：US12264963B2

公开(公告)日：2025-04-01

申请号：US18659181

申请日：2024-05-09

Applicant: Japan Display Inc.

Inventor： Kazuki Matsunaga ,  Akio Takimoto ,  Shigesumi Araki

IPC: G01J1/04 ,  G01J1/42

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 and a light source configured to emit light to a side surface of the light guide plate; and an optical filter layer provided between the photodiodes and the light guide plate of the front light. The optical filter layer includes a plurality of light guide paths that at least partially overlap the photodiodes, and a light-blocking portion having higher absorptance of the light than the light guide paths. The detection device includes a reflective layer that is provided between the light guide plate and the optical filter layer and overlaps the light-blocking portion of the optical filter layer.

公开(公告)号：US11966112B2

公开(公告)日：2024-04-23

申请号：US17453224

申请日：2021-11-02

Applicant: Japan Display Inc.

Inventor： Toshiyuki Higano ,  Kazuhiro Nishiyama ,  Genki Asozu ,  Kazuki Matsunaga

IPC: G02F1/1333 ,  G02F1/1335 ,  G06V40/13 ,  A61B5/00 ,  A61B5/1172

CPC classification number: G02F1/13338 ,  G02F1/133514 ,  G06V40/1318 ,  A61B5/1172 ,  A61B5/489

Abstract: According to an aspect, a detection apparatus includes: an optical sensor including a sensor base member and a plurality of photoelectric conversion elements that are provided on the sensor base member and each of which is configured to output a signal corresponding to light emitted to the photoelectric conversion element; and a lighting device including a plurality of first light-emitting elements configured to emit first light having a first maximum emission wavelength and a plurality of second light-emitting elements configured to emit second light having a second maximum emission wavelength. Each of the photoelectric conversion elements has responsivity in a wavelength region including a wavelength region of the first light and a wavelength region of the second light.

公开(公告)号：US11271178B2

公开(公告)日：2022-03-08

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：US11881047B2

公开(公告)日：2024-01-23

申请号：US18119931

申请日：2023-03-10

Applicant: Japan Display Inc.

Inventor： Kazuki Matsunaga ,  Shigesumi Araki ,  Yasushi Tomioka

IPC: G06V40/13 ,  H01L27/146

CPC classification number: G06V40/1318 ,  G06V40/1324 ,  H01L27/14627

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：US11747665B2

公开(公告)日：2023-09-05

申请号：US17701980

申请日：2022-03-23

Applicant: Japan Display Inc.

Inventor： Kazuki Matsunaga

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

CPC classification number: G02F1/13338 ,  G02B6/003 ,  G02F1/133524 ,  G06V40/1318

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：US11600102B2

公开(公告)日：2023-03-07

申请号：US17517109

申请日：2021-11-02

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Kazuki Matsunaga ,  Toshiyuki Higano ,  Kazuhiro Nishiyama

IPC: G06V40/13 ,  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：US11573449B2

公开(公告)日：2023-02-07

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 ,  G02F1/1333 ,  G06V40/13 ,  G02F1/1343

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.

公开(公告)号：US11550429B2

公开(公告)日：2023-01-10

申请号：US17557757

申请日：2021-12-21

Applicant: Japan Display Inc.

Inventor： Tomoyuki Ito ,  Kazuki Matsunaga ,  Shigesumi Araki ,  Kazuhide Mochizuki

IPC: G02F1/135 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/1333 ,  G06F3/042 ,  H01L27/146 ,  G06F3/041 ,  G02F1/1362

Abstract: According to one embodiment, a liquid crystal display device comprises first and second substrates and a liquid crystal layer. The first substrate includes a base member, a sensor between the base member and the liquid crystal layer, a collimation layer between the sensor and the liquid crystal layer, an insulating layer between the sensor and the collimation layer, an insulating layer, and a light shielding layer between the sensor and the base member. The sensor is configured to output a signal corresponding to light incident from a liquid crystal layer side. The light shielding layer overlaps with an outer peripheral part of the first collimation layer.