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公开(公告)号：US20240210725A1
公开(公告)日：2024-06-27
申请号：US18390715
申请日：2023-12-20
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO , Hiroshi MIYAIRI , Kazuhiro MIYAGI , Masakazu KOTANI , Keiko ONO , Atsushi KOJIMA
CPC classification number: G02B30/56 , G06F3/013 , G06F3/042 , G06V10/74 , G06V40/10 , G09G3/003 , G02B5/124
Abstract: An image display device includes: a first display device configured to output a first image representing an operation part for an apparatus; an imaging element configured to reflect the first image and to form the first image in mid-air as a mid-air image; a first sensor configured to detect an approach of a detection object to the mid-air image and to output a first signal; and a controller configured to output a second signal to the apparatus based on the first signal.
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公开(公告)号：US20240142799A1
公开(公告)日：2024-05-02
申请号：US18493167
申请日：2023-10-24
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO , Hiroshi MIYAIRI
IPC: G02B30/56
CPC classification number: G02B30/56
Abstract: An image display device includes: an imaging element; a light source configured to irradiate light toward the imaging element; an optical system located in an optical path between the imaging element and the light source; a light-shielding member configured to shield a portion of light of at least the light source; and a light-transmitting member configured to transmit light emitted from the imaging element.
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公开(公告)号：US20240021773A1
公开(公告)日：2024-01-18
申请号：US18474548
申请日：2023-09-26
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
IPC: H01L33/62 , H01L33/50 , H01L25/075 , H01L25/16 , H01L27/12
CPC classification number: H01L33/62 , H01L33/505 , H01L25/0753 , H01L25/167 , H01L27/124 , H01L2933/0066 , H01L2933/0041
Abstract: A method for manufacturing an image display device according to an embodiment includes: preparing a first substrate that includes a circuit element formed on a first surface of a substrate, a first wiring layer connected to the circuit element, and a first insulating film covering the circuit element and the first wiring layer; forming a graphene-including layer on the first insulating film; forming a semiconductor layer that includes a light-emitting layer on the graphene-including layer; forming a light-emitting element that includes a light-emitting surface on the graphene-including layer and includes a top surface at a side opposite to the light-emitting surface by patterning the semiconductor layer; forming a second insulating film covering the first insulating film, the graphene-including layer, and the light-emitting element; forming a first via extending through the first and second insulating films; and forming a second wiring layer on the second insulating film.
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公开(公告)号：US20230290808A1
公开(公告)日：2023-09-14
申请号：US18318104
申请日：2023-05-16
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
IPC: H01L27/15
CPC classification number: H01L27/156
Abstract: A method for manufacturing an image display device includes: forming a conductive layer on a first substrate, wherein at least a part of the conductive layer is formed of a single-crystal metal; forming a semiconductor layer on said part of the conductive layer, the semiconductor layer comprising a light-emitting layer; forming a light-emitting element by patterning the semiconductor layer; forming a first insulating film that covers the first substrate, the conductive layer, and the light-emitting element; forming a circuit element on the first insulating film; forming a second insulating film that covers the first insulating film and the circuit element; exposing a surface that includes a light-emitting surface of the light-emitting element by removing a portion of the first insulating film and a portion of the second insulating film; and forming a wiring layer on the second insulating film.
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公开(公告)号：US20220223648A1
公开(公告)日：2022-07-14
申请号：US17709063
申请日：2022-03-30
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
Abstract: An image display device manufacturing method includes: providing a first substrate that includes: a circuit including a circuit element formed on a light-transmitting substrate, and a first insulating film covering the circuit; forming, on the first insulating film, a layer including graphene; forming, on the layer v graphene, a semiconductor layer including a light-emitting layer; etching the semiconductor layer to form a light-emitting element; forming a second insulating film covering the layer including graphene, the light-emitting element, and the first insulating film; forming a via passing through the first insulating film and the second insulating film; and electrically connecting the light-emitting element and the circuit element through the via at a light-emitting surface facing a surface of the light-emitting element on a first insulating film side.
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Patent Agency Ranking
公开(公告)号：US20210082340A1
公开(公告)日：2021-03-18
申请号：US17105394
申请日：2020-11-25
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
IPC: G09G3/32
Abstract: An image display device includes pixel circuits arranged in a matrix configuration between a first power supply line and a second power supply line. Each of the pixel circuits includes a light-emitting element and a first circuit connected to the light-emitting element and configured to set a duration during which a current is supplied to the light-emitting element based on a result of comparing a first signal and a first direct current voltage. The first signal includes a triangular wave signal. The first direct current voltage is set in a prescribed period. At least one of the pixel circuits includes a second circuit connected in series to the first circuit. The second circuit is configured to control a current supplied to the first circuit based on a second direct current voltage set in a period different from the prescribed period.
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公开(公告)号：US20200211451A1
公开(公告)日：2020-07-02
申请号：US16726936
申请日：2019-12-26
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
Abstract: An image display device includes pixels each of which includes subpixels including a first subpixel and a second subpixel. The first subpixel includes a first light-emitting element configured to emit isochromatic light and a first wavelength conversion layer provided over the first light-emitting element to emit red light. The second subpixel includes a second light-emitting element configured to emit the isochromatic light and a second wavelength conversion layer provided over the second light-emitting element to emit green light. The pixels includes at least one pixel which includes a defective subpixel. A drive circuit is configured to drive the subpixels based on data of an image signal such that the pixels reproduces the data of the image signal. The drive circuit is configured to drive the first subpixel and the second subpixel based on the position data and data of red and green luminances.
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公开(公告)号：US20240385433A1
公开(公告)日：2024-11-21
申请号：US18691498
申请日：2022-03-31
Applicant: NICHIA CORPORATION
Inventor： Wataru KITAHARA , Takanori ARUGA , Hajime AKIMOTO
Abstract: A light source unit includes: a display device configured to emit light having a substantially Lambertian light distribution and to display an image; and an imaging optical system including: an input element on which light emitted from the display device is incident, and an output element on which light traveling via the input element is incident, the output element being configured to emit light forming a first image corresponding to the image. The imaging optical system is substantially telecentric at the first image side.
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公开(公告)号：US20240210684A1
公开(公告)日：2024-06-27
申请号：US18543762
申请日：2023-12-18
Applicant: NICHIA CORPORATION
Inventor： Wataru KITAHARA , Takanori ARUGA , Hajime AKIMOTO
CPC classification number: G02B27/0101 , B60K35/23 , B60K2360/23 , B60K2360/332 , B60K2360/349 , G02B2027/0145
Abstract: An image display device includes: a light source unit including: a first display device configured to emit light having a substantially Lambertian light distribution and to display a first image, and an imaging optical system including: an input element on which light emitted from the first display device is incident, and an output element on which light traveling via the input element is incident, the output element being configured to emit light that forms a real image corresponding to the first image; a reflection unit separated from the light source unit, the reflection unit configured to reflect light emitted from the imaging optical system; a second display device configured to display a second image; and an image-forming element configured to display the second image in mid-air based on light emitted from the second display device. The imaging optical system is substantially telecentric at the real image side.
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公开(公告)号：US20240014354A1
公开(公告)日：2024-01-11
申请号：US18471933
申请日：2023-09-21
Applicant: NICHIA CORPORATION
Inventor： Hajime AKIMOTO
CPC classification number: H01L33/44 , H01L25/0753 , H01L33/0095 , H01L33/007 , H01L33/32 , H01L33/62 , H01L33/22 , H01L25/167 , H01L33/50 , H01L2933/0025 , H01L2933/0066 , H01L2933/0041
Abstract: A method for manufacturing an image display device includes: forming, on a substrate, a layer including a first part made of a single-crystal metal; forming a semiconductor layer on the first part, the semiconductor layer including a light-emitting layer; forming a light-emitting element including: a light-emitting surface on the first part, and an upper surface opposite the light-emitting surface; forming a first insulating film that covers the substrate, the layer that comprises the first part, and the light-emitting element; forming a circuit element on the first insulating film; forming a light-shielding member between the circuit element and the light-emitting element; forming a second insulating film covering the first insulating film and the circuit element; forming a first via extending through the first and second insulating films; forming a wiring layer on the second insulating film; removing the substrate; and removing a portion of the first part on the light-emitting surface.
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