Patents by Inventor Jun IROBE

Jun IROBE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250076657
    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.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Jun IROBE
  • Publication number: 20250076674
    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.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TAJIRI, Jun IROBE
  • Patent number: 12245486
    Abstract: An electro-optical device is provided and 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 first wavelength region and light in the third wavelength region and absorb light in the second wavelength region.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: March 4, 2025
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Jun Irobe
  • Patent number: 12185573
    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.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: December 31, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Jun Irobe
  • Patent number: 12133440
    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.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: October 29, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Jun Irobe
  • Publication number: 20240329403
    Abstract: A display device includes a display panel that emits color image light, and a light guiding unit that guides the color image light. When the color image light emitted from the display panel is white image light, color coordinates of the white image light are different from color coordinates of image light obtained as a result of the white image light being guided by the light guiding unit. Specifically, when the display panel emits the color image light by additive color mixing of red, green, and blue, and display unevenness in the display panel is caused by red, in the light guiding unit, the spectral transmittance of cyan, which is a complementary color of red, is adjusted to be smaller than the spectral transmittance of red.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Jun IROBE
  • Publication number: 20240306467
    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.
    Type: Application
    Filed: March 5, 2024
    Publication date: September 12, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Jun IROBE, Yuiga HAMADE
  • Patent number: 12080237
    Abstract: A display system includes a display unit that displays pixels with a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and a correction circuit that sets a color temperature for white luminescence. When the pixels perform display in a first tone that is the same tone with the red sub-pixel, green sub-pixel, and blue sub-pixel, the correction circuit sets a first color temperature as a white point. When the pixels perform display in a second tone that is lower than the first tone and that is the same tone with the red sub-pixel, green sub-pixel, and blue sub-pixel, the correction circuit sets a second color temperature different from the first color temperature as the white point.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: September 3, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Jun Irobe
  • Patent number: 12075679
    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.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: August 27, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Jun Irobe, Takeshi Koshihara
  • Patent number: 11997908
    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.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: May 28, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Jun Irobe
  • Patent number: 11832470
    Abstract: An organic electroluminescence device includes an organic electroluminescence element, and a protective layer that protects the organic electroluminescence element, wherein the protective layer includes a first insulating film, a second insulating film, a third insulating film, a fourth insulating film, and a fifth insulating film, a density of the second insulating film is higher than a density of each of the first insulating film, the third insulating film, and the fifth insulating film, a density of the fourth insulating film is higher than the density of each of the first insulating film, the third insulating film, and the fifth insulating film, and each of the first insulating film, the second insulating film, the third insulating film, the fourth insulating film, and the fifth insulating film includes an inorganic material including silicon and nitrogen.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: November 28, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takefumi Fukagawa, Jun Irobe, Tetsuya Yamamoto
  • Publication number: 20230326407
    Abstract: A display system includes a display unit that displays pixels with a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and a correction circuit that sets a color temperature for white luminescence. When the pixels perform display in a first tone that is the same tone with the red sub-pixel, green sub-pixel, and blue sub-pixel, the correction circuit sets a first color temperature as a white point. When the pixels perform display in a second tone that is lower than the first tone and that is the same tone with the red sub-pixel, green sub-pixel, and blue sub-pixel, the correction circuit sets a second color temperature different from the first color temperature as the white point.
    Type: Application
    Filed: March 28, 2023
    Publication date: October 12, 2023
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Jun IROBE
  • Publication number: 20230140126
    Abstract: An electro-optical device includes, in plan view, a light-emitting region B that emits blue light, a coloring layer Cf_B that transmits the blue light, a light-emitting region G1 that is disposed adjacent to the light-emitting region B in a Y direction and emits green light, a coloring layer Cf_G that is provided overlapping the light-emitting region G1 and transmits the green light, a light-emitting region R that is disposed adjacent to the light-emitting region G1 in an X direction and emits red light, a coloring layer Cf_R that is provided overlapping the light-emitting region R and transmits the red light, a light-emitting region G2 that is disposed adjacent to the light-emitting region G1 in an E direction and emits green light, and a coloring layer Cf_G that is provided overlapping the light-emitting region G2 and transmits the green light, wherein the coloring layer Cf_B includes a region that overlaps the light-emitting region B in plan view, and a region located between the light-emitting regions G1
    Type: Application
    Filed: October 28, 2022
    Publication date: May 4, 2023
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yuiga HAMADE, Jun IROBE
  • Patent number: 11641771
    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.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: May 2, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Jun Irobe, Takeshi Koshihara
  • Publication number: 20220352261
    Abstract: An electro-optical device includes: a first light-emitting region that emits light in a first wavelength range; a second light-emitting region disposed at a position adjacent to the first light-emitting region in a first direction and that emits light in a second wavelength range; a third light-emitting region disposed at a position adjacent to the first light-emitting region in a second direction and that emits light in a third wavelength range; a fourth light-emitting region disposed at a position adjacent to the second light-emitting region in the second direction and that emits light in a third wavelength range; a first coloring layer provided overlapping the first light-emitting region; a second coloring layer provided overlapping the second light-emitting region; a third coloring layer provided overlapping the third and fourth light-emitting regions; and a light-shielding portion including a first light-shielding portion provided in an island shape to overlap a region between the third and fourth light-
    Type: Application
    Filed: April 28, 2022
    Publication date: November 3, 2022
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Jun IROBE, Yuiga HAMADE
  • Patent number: 11444134
    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 first color filer that is disposed in the first sub-pixel, a second reflection layer that is disposed in a second sub-pixel, a second pixel electrode that is disposed in the second sub-pixel, a second color filter that is disposed in the second sub-pixel, the second color filter that is same color as the first color filter, a light-emitting functional layer, and an insulating layer that is disposed between the first reflection layer and the first pixel electrode, the light-emitting functional layer that is disposed between the second reflection layer and the second pixel electrode. A thickness of the insulating layer in the second sub-pixel is thicker than a thickness of the insulating layer in the first sub-pixel.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: September 13, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Jun Irobe
  • Patent number: 11424430
    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.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: August 23, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Jun Irobe, Takefumi Fukagawa
  • Publication number: 20220158135
    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.
    Type: Application
    Filed: November 16, 2021
    Publication date: May 19, 2022
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Jun IROBE
  • Publication number: 20220140008
    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.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 5, 2022
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takefumi FUKAGAWA, Jun IROBE
  • Patent number: 11315981
    Abstract: A light-emitting device includes a semi-transmissive reflection layer, a first reflection layer that is disposed in a 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, 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. A thickness of the light-emitting functional layer in the second sub-pixel is thicker than a thickness of the light-emitting functional layer in the first sub-pixel.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 26, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Jun Irobe, Takeshi Koshihara