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公开(公告)号：US20240210680A1
公开(公告)日：2024-06-27
申请号：US18390954
申请日：2023-12-20
Applicant: NICHIA CORPORATION
Inventor： Wataru KITAHARA , Naoki NAKAMURA , Takanori ARUGA , Hajime AKIMOTO
IPC: G02B27/01
CPC classification number: G02B27/0101 , G02B2027/0112 , G02B2027/0154 , G02B2207/123
Abstract: A light source unit includes a display device and an imaging optical system; the display device includes a pixel column including multiple pixels arranged along a first direction; the imaging optical system includes a movable optical system and an output element; light emitted from the display device is incident on the movable optical system; the movable optical system is movable around an axis parallel to the first direction and emits light at an angle corresponding to a movement state; light is incident on the output element via the movable optical system; and the light emitted from the output element forms a first image. The imaging optical system is substantially telecentric at the first image side; and the light emitted from the display device has a substantially Lambertian light distribution.
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公开(公告)号：US20240184132A1
公开(公告)日：2024-06-06
申请号：US18520041
申请日：2023-11-27
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO , Hisanori TANAKA , Takashi SAKAMOTO , Masakazu KOTANI
IPC: G02B30/56 , G02B5/124 , G06T7/73 , H04N13/167 , H04N13/327 , H04N13/383
CPC classification number: G02B30/56 , G02B5/124 , G06T7/74 , H04N13/167 , H04N13/327 , H04N13/383 , G06T2207/30252
Abstract: An image display device includes an imaging element, a light source, a detecting part, and a controller. The imaging element includes a base member including a first surface, and a reflector array on the base member. The reflector array includes multiple reflector rows, each including multiple dihedral corner reflectors along a first direction. The multiple reflector rows are arranged parallel to a second direction crossing the first direction. The multiple dihedral corner reflectors each include a first reflecting surface, and a second reflecting surface orthogonal to the first reflecting surface. A tilt of a second orthogonal reflector is set to form a floating image at the first surface side. The light-transmitting member is arranged to transmit twice-reflected light of the imaging element. The light-shielding member shields a portion of light other than the twice-reflected light.
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公开(公告)号：US20240160036A1
公开(公告)日：2024-05-16
申请号：US18504237
申请日：2023-11-08
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO , Hiroshi MIYAIRI , Keiko ONO , Masae YAMAWAKI
CPC classification number: G02B30/56 , G02B5/124 , G02B26/0816
Abstract: An image display device includes an imaging element, a light source that forms a floating image, a position detecting part, a driver, and a controller. The imaging element includes a base member including a first surface, and a reflector array on the base member; or a base member comprising a reflector array and including a first surface. The reflector array includes multiple reflector rows including multiple dihedral corner reflectors along a first direction. The reflector rows are arranged parallel to a second direction crossing the first direction. The dihedral corner reflectors each include a first reflecting surface, and a second reflecting surface orthogonal to the first reflecting surface.
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公开(公告)号：US20240160014A1
公开(公告)日：2024-05-16
申请号：US18496594
申请日：2023-10-27
Applicant: NICHIA CORPORATION
Inventor： Wataru KITAHARA , Takanori ARUGA , Hajime AKIMOTO
IPC: G02B27/01 , G02F1/1335
CPC classification number: G02B27/0101 , G02F1/133536 , G02F1/133553
Abstract: An image display device includes: a display device configured to display an image; a liquid crystal element on which light emitted from the display device is incident, the liquid crystal element being configured to selectively allow one of P-polarized light or S-polarized light to exit the liquid crystal element; a reflective polarizing member configured to reflect the one of the P-polarized light or the S-polarized light that has exited the liquid crystal element and to transmit the other of the P-polarized light or the S-polarized light; and a reflecting member configured to reflect the other of the P-polarized light or the S-polarized light in the same direction as a travel direction of the one of the P-polarized light or the S-polarized light reflected by the reflective polarizing member
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公开(公告)号：US20230377514A1
公开(公告)日：2023-11-23
申请号：US18364459
申请日：2023-08-02
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2320/043 , G09G2320/0257 , G09G2310/0202 , G09G2300/0426 , G09G2300/0814 , G09G2330/028
Abstract: An image display device includes a plurality of driving circuits disposed on a substrate, and a plurality of light emitting elements corresponding to a plurality of pixels respectively. Each of the plurality of driving circuits being configured to provide a driving current to each of the plurality of light emitting elements and to control the driving current by a pulse amplitude modulation and a pulse width modulation. The driving circuit being configured using TFTs.
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Patent Agency Ranking
公开(公告)号：US20230216015A1
公开(公告)日：2023-07-06
申请号：US18181002
申请日：2023-03-09
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
CPC classification number: H01L33/62 , H01L33/32 , H01L33/382 , H01L33/007 , H01L33/50 , H01L2933/0016 , H01L2933/0041 , H01L2933/0066
Abstract: An image display device according to an embodiment includes a substrate, a first wiring line formed on the substrate along a first direction, a first light-emitting element located on the first wiring line and including a first light-emitting surface, a light-transmitting electrode formed along a second direction intersecting the first direction and located on the first light-emitting surface, a first anisotropic conductive member located on the first wiring line, a first terminal electrically connected to the first wiring line via the first anisotropic conductive member, a second anisotropic conductive member located on the light-transmitting electrode, and a second terminal electrically connected to the light-transmitting electrode via the second anisotropic conductive member. The first light-emitting element includes a first bottom surface in contact with the first wiring line, and the first light-emitting surface is located on a side of the first light-emitting element opposite to the first bottom surface.
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公开(公告)号：US20230207768A1
公开(公告)日：2023-06-29
申请号：US18173937
申请日：2023-02-24
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
CPC classification number: H01L33/62 , H01L33/382 , H01L25/0753 , H01L33/0075 , H01L33/32 , H01L33/50 , H01L2933/0016 , H01L2933/0066 , H01L2933/0041
Abstract: An image display device manufacturing method according to an embodiment includes preparing a semiconductor layer, joining the semiconductor layer to a first substrate with a first metal layer interposed therebetween, bonding the semiconductor layer to a light-transmitting substrate, removing the first substrate, etching the semiconductor layer to form a light-emitting element including a light-emitting surface and an upper surface, etching the first metal layer to form a light-blocking electrode covering the upper surface, forming a first insulating film covering the light-emitting element and the light-blocking electrode, forming a circuit element on the first insulating film, forming a second insulating film covering the first insulating film and the circuit element, forming a first via passing through the first insulating film and the second insulating film, and forming a first wiring layer on the second insulating film.
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公开(公告)号：US20230006001A1
公开(公告)日：2023-01-05
申请号：US17943543
申请日：2022-09-13
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
IPC: H01L27/32 , H01L31/107
Abstract: An image display device includes: a circuit element; a first interconnect layer electrically connected to the circuit element; a first insulating film covering the circuit element and the first interconnect layer; a light emitting element disposed on the first insulating film; a second insulating film covering at least a part of the light emitting element; a second interconnect layer electrically connected to the light emitting element and disposed on the second insulating film; and a first via extending through the first insulating film and the second insulating film, and electrically connecting the first interconnect layer and the second interconnect layer.
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公开(公告)号：US20220149113A1
公开(公告)日：2022-05-12
申请号：US17585963
申请日：2022-01-27
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
Abstract: A method for manufacturing an image display device includes: providing a second substrate that includes a first substrate, and a semiconductor layer grown on the first substrate, the semiconductor layer including a light-emitting layer; providing a third substrate including: a circuit including a circuit element formed on a light-transmitting substrate, a first insulating film covering the circuit, and a conductive layer including a light-reflective part formed on the first insulating film; bonding the semiconductor layer to the third substrate; forming a light-emitting element from the semiconductor layer; forming a second insulating film covering the conductive layer, the light-emitting element, and the first insulating film; forming a via extending through the first and second insulating films; and electrically connecting the light-emitting element and the circuit element by the via.
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公开(公告)号：US20220069187A1
公开(公告)日：2022-03-03
申请号：US17522394
申请日：2021-11-09
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
Abstract: A manufacturing method of an embodiment includes: providing a semiconductor growth substrate including a semiconductor layer including a light-emitting layer on a first substrate; forming a first insulating film on a second substrate that includes a circuit that includes a circuit element and a first wiring layer; forming a plug in the first insulating film to be connected with the circuit element; bonding the semiconductor layer to the second substrate and electrically connecting the plug to the semiconductor layer; forming a light-emitting element electrically connected to the plug by patterning the semiconductor layer; forming a second insulating film that covers the light-emitting element and the first insulating film; exposing a portion of the light-emitting element by removing a portion of the second insulating film; and forming a second wiring layer on the second insulating film.
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