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公开(公告)号：US20250076657A1
公开(公告)日：2025-03-06
申请号：US18818629
申请日：2024-08-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Jun IROBE
Abstract: A virtual image display device includes a display panel that emits image light, a projection optical system that collimates the image light from the display panel, and a light guide member that includes a light guide plate that guides the image light, an input diffractive optical element that causes the image light to enter the light guide plate, and an output diffractive optical element that causes the image light to be emitted from the light guide plate, wherein the input diffractive optical element has a diffraction efficiency distribution having a tendency to cancel unevenness of the image light entering the input diffractive optical element.
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公开(公告)号：US20220158135A1
公开(公告)日：2022-05-19
申请号：US17528131
申请日：2021-11-16
Applicant: SEIKO EPSON CORPORATION
Inventor： Jun IROBE
Abstract: An electro-optical device includes: a first light emitting element including an electrode and a first reflective layer disposed apart from the electrode by a first optical distance, a second light emitting element including the electrode and a second reflective layer disposed apart from the electrode by a second optical distance, a first microlens configured such that light emitted from the first light emitting element is incident on the first microlens, and a second microlens configured such that light emitted from the second light emitting element is incident on the second microlens, wherein a full width at half maximum of a spectrum of a first color light corresponding to the first optical distance is different from a full width at half maximum of a spectrum of a second color light corresponding to the second optical distance, and a curvature of the first microlens is smaller than a curvature of the second microlens.
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公开(公告)号：US20220140008A1
公开(公告)日：2022-05-05
申请号：US17513894
申请日：2021-10-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Takefumi FUKAGAWA , Jun IROBE
IPC: H01L27/32
Abstract: An electro-optical device includes a light-emitting element, a colored layer corresponding to the light-emitting element, a first inorganic insulating film disposed between the light-emitting element and the colored layer, the first inorganic insulating film including a lens surface having a curved shape, and a second inorganic insulating film disposed, between the light-emitting element and the first inorganic insulating film, so as to be in contact with the first inorganic insulating film, in which an etching rate of the second inorganic insulating film is lower than an etching rate of the first inorganic insulating film.
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公开(公告)号：US20210028246A1
公开(公告)日：2021-01-28
申请号：US16936828
申请日：2020-07-23
Applicant: SEIKO EPSON CORPORATION
Inventor： Naotaka KUBOTA , Jun IROBE
Abstract: A light-emitting device includes a semi-transmissive reflection layer, a first reflection layer that is disposed in a first sub-pixel, a first pixel electrode that is disposed in the first sub-pixel, a second reflection layer that is disposed in a second sub-pixel, the second sub-pixel that emits same color light as the first sub-pixel, a second pixel electrode that is disposed in the second sub-pixel, and a light-emitting functional layer that is disposed between the first reflection layer and the semi-transmissive reflection layer, the light-emitting functional layer that is disposed between the second reflection layer and the semi-transmissive reflection layer. The first pixel electrode is disposed between the first reflection layer and the light-emitting functional layer. The second pixel electrode is disposed between the second reflection layer and the light-emitting functional layer. A thickness of the second pixel electrode is thicker than a thickness of the first pixel electrode.
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公开(公告)号：US20200220108A1
公开(公告)日：2020-07-09
申请号：US16736871
申请日：2020-01-08
Applicant: SEIKO EPSON CORPORATION
Inventor： Jun IROBE , Takefumi FUKAGAWA
Abstract: An organic electroluminescence device according to the present disclosure includes a light-emitting layer containing a light-emitting material, a first reflective layer configured to reflect light generated in the light-emitting layer, a second reflective layer disposed on an opposite side of the light-emitting layer from the first reflective layer, having light reflectivity and light transmissivity, to cause light generated in the light-emitting layer to resonate between the second reflective layer and the first reflective layer, and a dielectric multilayer film disposed on an opposite side of the second reflective layer from the light-emitting layer to cause light emitted from the second reflective layer to resonate.
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Patent Agency Ranking
公开(公告)号：US20250076674A1
公开(公告)日：2025-03-06
申请号：US18818633
申请日：2024-08-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAJIRI , Jun IROBE
Abstract: A virtual image display device includes a display panel configured to emit image light, a projection optical system configured to collimate the image light from the display panel, and a light guide member that includes a light guide plate configured to guide the image light, an input diffractive optical element configured to cause the image light to enter the light guide plate, and an output diffractive optical element configured to cause the image light to be emitted from the light guide plate, wherein the input diffractive optical element is divided into a plurality of regions, and the plurality of regions are different from each other in an inclined angle of a grating in accordance with an angle of incidence of the image light.
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公开(公告)号：US20240306467A1
公开(公告)日：2024-09-12
申请号：US18596601
申请日：2024-03-05
Applicant: SEIKO EPSON CORPORATION
Inventor： Jun IROBE , Yuiga HAMADE
CPC classification number: H10K59/38 , H10K59/871 , H10K59/879
Abstract: Provided is a display device including: a first colored layer provided at an opposite side of a first light-emitting element with respect to a sealing layer; and a second colored layer provided at an opposite side of a second light-emitting element with respect to the sealing layer. The first colored layer includes a first flat surface at an opposite side of the sealing layer, a first side surface in contact with the second colored layer, and a first coupling surface inclined with respect to the first flat surface, coupling the first flat surface and the first side surface, and separated from the second colored layer. The second colored layer includes a second flat surface at the opposite side of the sealing layer, a second side surface in contact with the first side surface, and a second coupling surface inclined with respect to the second flat surface, coupling the second flat surface and the second side surface, and separated from the first colored layer. A contact portion between the first side surface and the second side surface contacts with the sealing layer.
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公开(公告)号：US20220037416A1
公开(公告)日：2022-02-03
申请号：US17389365
申请日：2021-07-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Jun IROBE , Takeshi KOSHIHARA
Abstract: An electro-optical device according to the present disclosure includes a substrate, a colored layer, a first light-emitting element and a second light-emitting element disposed between the substrate and the colored layer in a thickness direction of the substrate, and a wall portion disposed between the first light-emitting element and the colored layer in the thickness direction and between the first light-emitting element and the second light-emitting element in plan view, wherein a first refractive index of the wall portion and a second refractive index of the colored layer are different from each other, and the colored layer includes a curved surface that is in contact with the wall portion and protrudes toward the wall portion.
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公开(公告)号：US20210359016A1
公开(公告)日：2021-11-18
申请号：US17317860
申请日：2021-05-11
Applicant: SEIKO EPSON CORPORATION
Inventor： Takeshi KOSHIHARA , Jun IROBE
IPC: H01L27/32
Abstract: An electro-optical device includes a first light-emitting element configured to emit light in a first wavelength region, a second light-emitting element configured to emit light in a second wavelength region shorter than the first wavelength region, a third light-emitting element configured to emit light in a third wavelength region shorter than the second wavelength region, a first filter configured to transmit light in the first wavelength region and light in the second wavelength region and absorb light in the third wavelength region, and a second filter configured to transmit light in the second wavelength region and light in the third wavelength region and absorb light in the first wavelength region.
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公开(公告)号：US20210233965A1
公开(公告)日：2021-07-29
申请号：US17161625
申请日：2021-01-28
Applicant: SEIKO EPSON CORPORATION
Inventor： Jun IROBE , Takeshi KOSHIHARA
IPC: H01L27/32
Abstract: An electro-optical device includes a first light-emitting element including a first light-emitting region, a second light-emitting element including a second light-emitting region, a first filter, and a second filter. The area of the first light-emitting region is smaller than the area of the second light-emitting region, and a relationship (Lf11-Le11)>(Lf21-Le21) is satisfied when the length of the first light-emitting region is Le11, the length of the second light-emitting region is Le21, the length of the first filter is Lf11, and the length of the second filter is Lf21.
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