Patents by Inventor Takeshi Koshihara

Takeshi Koshihara 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: 20200358036
    Abstract: A display device is provided that includes a substrate, a lens layer including a lens, a light-transmitting layer contacting a lens surface of the lens and having translucency, a pixel electrode disposed between the substrate and the lens layer, and a color filter disposed between the pixel electrode and the lens layer. The lens is disposed correspondingly to the pixel electrode. A refractive index of a constituent material for the lens is higher than a refractive index of a constituent material for the light-transmitting layer.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 12, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Osamu YOKOYAMA, Takeshi KOSHIHARA
  • Publication number: 20200358034
    Abstract: A display device includes a substrate, a lens layer including a plurality of lenses, and a plurality of pixel electrodes disposed between the substrate and the lens layer. The plurality of pixel electrodes include a first pixel electrode and a second pixel electrode. The plurality of lenses include a first lens disposed correspondingly to the first pixel electrode and a second lens disposed correspondingly to the second pixel electrode. An area of the first pixel electrode in plan view is greater than an area of the second pixel electrode in the plan view. An area of the first lens in the plan view is greater than an area of the second lens.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 12, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi KOSHIHARA
  • Publication number: 20200358035
    Abstract: A display device of the present disclosure includes a substrate, a lens layer including a lens, a light-transmitting layer that contacts a lens surface of the lens, and has translucency, a pixel electrode disposed between the substrate and the lens layer, and a color filter disposed between the pixel electrode and the lens layer. The lens is disposed so as to correspond to the pixel electrode. A refractive index of a constituent material for the lens is lower than a refractive index of a constituent material for the light-transmitting layer.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 12, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Osamu YOKOYAMA, Takeshi KOSHIHARA, Mitsutaka IDE
  • Publication number: 20200357854
    Abstract: A display device according to the present disclosure includes a substrate, a lens layer including a lens, a pixel electrode disposed between the substrate and the lens layer, and a color filter disposed between the pixel electrode and the lens layer. The color filter includes a colored portion that overlaps a part of the pixel electrode in plan view and is disposed between the substrate and the lens layer. The pixel electrode is provided in a display region in which an image is displayed. The lens overlaps a part of the pixel electrode in the plan view. A distance between the center of the pixel electrode and the display center of the display region is shorter than a distance between the center of the lens and the display center in the plan view.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 12, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi KOSHIHARA
  • Patent number: 10810924
    Abstract: An electro-optical device has a first pixel disposed on a substrate, a second pixel disposed on the substrate and has a different color from the first pixel, a first color filter that overlaps the first pixel in a plan view in a normal direction of the substrate; and a second color filter that overlaps the second pixel and has an opening in the plan view.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 20, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takeshi Koshihara
  • Publication number: 20200295109
    Abstract: A light emitting device includes a transistor, a light reflection layer, a first insulation layer that includes a first layer thickness part, a second layer thickness part, and a third layer thickness part, a pixel electrode that is provided on the first insulation layer, a second insulation layer that covers a peripheral section of the pixel electrode, a light emission functional layer, a facing electrode, and a conductive layer that is provided on the first layer thickness part. The pixel electrode includes a first pixel electrode which is provided in the first layer thickness part, a second pixel electrode which is provided in the second layer thickness part, and a third pixel electrode which is provided in the third layer thickness part. The first pixel electrode, the second pixel electrode, and the third pixel electrode are connected to the transistor through the conductive layer.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Ryoichi NOZAWA
  • Publication number: 20200295091
    Abstract: An electro-optical device includes a first substrate, a second substrate, and a color filter disposed in a layer between the first substrate and the second substrate. An adhesive is disposed in a layer between the color filter and the second substrate. A first overcoat layer is disposed in a layer between the adhesive and the color filter, and a second overcoat layer is disposed in the layer between the adhesive and the color filter and is disposed along the first overcoat layer.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masanori IWASAKI, Suguru AKAGAWA, Narumi ISHIBASHI, Takeshi KOSHIHARA
  • Patent number: 10769996
    Abstract: An electro-optical device includes a first data transfer line that intersects a scan line, a second data transfer line, a first transistor that controls coupling between the first data transfer line and the second transfer line. The two or more second data transfer lines are respectively coupled to the first data transfer line via first capacitors, and when a collection of pixel circuits that are coupled to the same first data transfer line via the second data transfer lines is referred to as a pixel string, the second data transfer lines are provided to pixel circuits less than the pixel circuits included in the pixel string.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: September 8, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Takeshi Koshihara
  • Patent number: 10720092
    Abstract: An optical axis of a light emitting element is inclined against a normal line of a light emitting surface of the light emitting element to a central side of a display area in a row direction according to positions of subpixels in the row direction, and the optical axis is inclined against the normal line of the light emitting surface to the central side of the display area in a column direction according to the positions of the subpixels in the column direction. A range of inclination of the optical axis is different in the row direction and the column direction. In the row direction and the column direction, the subpixels are disposed such that color filters of the same color are arranged in a direction in which the range of inclination becomes larger, and color filters of colors which are different from each other are arranged in another direction.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 21, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takeshi Koshihara
  • Publication number: 20200226979
    Abstract: A display device includes a pixel circuit, a driving circuit configured to drive a data line coupled to the pixel circuit, and a first capacitance element provided between the data line and the driving circuit, wherein the driving circuit includes a second capacitance element, and a first switching circuit configured to alternately repeat charging and discharging of the second capacitance element, and is configured to control the charging and the discharging based on a gradation specified by the pixel circuit, and output a voltage signal corresponding to the gradation.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 16, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi KOSHIHARA
  • Patent number: 10714555
    Abstract: A light emitting device includes a transistor, a light reflection layer, a first insulation layer that includes a first layer thickness part, a second layer thickness part, and a third layer thickness part, a pixel electrode that is provided on the first insulation layer, a second insulation layer that covers a peripheral section of the pixel electrode, a light emission functional layer, a facing electrode, and a conductive layer that is provided on the first layer thickness part. The pixel electrode includes a first pixel electrode which is provided in the first layer thickness part, a second pixel electrode which is provided in the second layer thickness part, and a third pixel electrode which is provided in the third layer thickness part. The first pixel electrode, the second pixel electrode, and the third pixel electrode are connected to the transistor through the conductive layer.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: July 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Ryoichi Nozawa
  • Patent number: 10714541
    Abstract: An electro-optical device includes a first substrate including a plurality of light-emitting elements and a color filter provided corresponding to the plurality of light-emitting elements and a second substrate being a light-transmissive substrate and disposed facing the first substrate with an adhesive provided between the first substrate and the second substrate. An adhesive surface of the color filter of the first substrate is provided with protrusions and recesses in a stripe pattern.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: July 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masanori Iwasaki, Suguru Akagawa, Narumi Ishibashi, Takeshi Koshihara
  • Publication number: 20200185651
    Abstract: A first light-emitting element and a second light-emitting element that have a resonance structure that causes output light from a light-emission functional layer to resonate between a reflective layer and a semi-transmissive reflective layer, and a pixel definition layer, and in which an aperture part is formed to correspond to each of the first light-emitting element and the second light-emitting element, are formed on a base. A first interval between the reflective layer and the semi-transmissive reflective layer in the first light-emitting element and a second interval between the reflective layer and the semi-transmissive reflective layer in the second light-emitting element are different, and a film thickness of the pixel definition layer is less than a difference between the first interval and the second interval.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Ryoichi NOZAWA, Atsushi AMANO, Takeshi KOSHIHARA, Akio FUKASE, Shinichi IWATA
  • Publication number: 20200133004
    Abstract: A head-mounted display apparatus according to the present disclosure includes an image generating module, a first deflecting element including a first deflecting portion configured to deflect, along a second optical axis intersecting the first optical axis, imaging light from the image generating module, and a second deflecting portion configured to deflect the imaging light along a third optical axis, a first diffraction element configured to diffract the imaging light from the second deflecting portion, and a second diffraction element configured to diffract the imaging light from the first diffraction element. A distance along the first optical axis between the image generating module and the first deflecting portion is longer than a distance along the third optical axis between the first diffraction element and the second deflecting portion.
    Type: Application
    Filed: October 29, 2019
    Publication date: April 30, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TAKEDA, Takeshi KOSHIHARA, Masatoshi YONEKUBO, Mitsutaka IDE
  • Publication number: 20200117075
    Abstract: An optical module in the present disclosure includes a first image display panel including a first display part and a first coupling part, a second image display panel including a second display part and a second coupling part, a third image display panel including a third display part and a third coupling part, and a cross dichroic prism configured to synthesize first, second, and third image light. The cross dichroic prism has a cross axis at which a two of photosynthesis surfaces cross each other. The first, second, and third image display panel are respectively bonded to different surfaces of the cross dichroic prism in a state where a long side of each of the first, second, and third display part extends along the cross axis and where the first, second, and third coupling part are each positioned on an outer side of the cross dichroic prism.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 16, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi KOSHIHARA
  • Publication number: 20200105848
    Abstract: An electro-optical apparatus includes a first pixel and a second pixel. The first pixel and the second pixel include a reflective layer, an insulating layer, a functional layer, and an opposing electrode. The insulating layer includes a first insulating layer, a second insulating layer having a first opening, and a third insulating layer having a second opening. A first pixel electrode is provided on the first insulating layer in the first opening. A second pixel electrode is provided on the second insulating layer.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Ryoichi NOZAWA, Takeshi KOSHIHARA, Hisakatsu SATO
  • Patent number: 10608208
    Abstract: A first light-emitting element and a second light-emitting element that have a resonance structure that causes output light from a light-emission functional layer to resonate between a reflective layer and a semi-transmissive reflective layer, and a pixel definition layer, and in which an aperture part is formed to correspond to each of the first light-emitting element and the second light-emitting element, are formed on a base. A first interval between the reflective layer and the semi-transmissive reflective layer in the first light-emitting element and a second interval between the reflective layer and the semi-transmissive reflective layer in the second light-emitting element are different, and a film thickness of the pixel definition layer is less than a difference between the first interval and the second interval.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: March 31, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryoichi Nozawa, Atsushi Amano, Takeshi Koshihara, Akio Fukase, Shinichi Iwata
  • Publication number: 20200089012
    Abstract: An image display module according to the present disclosure includes a first display panel including a plurality of first pixels each including a first light-emitting element, the first display panel being configured to emit first colored light of a first wavelength region, a second display panel including a plurality of second pixels each including a second light-emitting element and a plurality of third pixels each including a third light-emitting element, the second display panel being configured to emit second colored light of a second wavelength region, and emit third colored light of a third wavelength region, and a synthesis optical system including a dichroic prism which including a dichroic mirror and being configured to synthesize the first, the second, and the third colored light, the dichroic mirror being configured to transmit or reflect the first colored light and reflect or transmit the second and the third colored light.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 19, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi KOSHIHARA
  • Publication number: 20200027942
    Abstract: The light-emitting device includes a display unit in which rectangular light-emitting pixels are arranged, and a light-shielding portion that defines a light-emitting region in the display unit and shields light in a region other than the light-emitting region of the display unit, and at least a part of a boundary between the light-emitting region and the light-shielding portion has a curved shape.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 23, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takumi KODAMA, Takeshi KOSHIHARA
  • Publication number: 20200027937
    Abstract: A light-emitting device includes a display unit including a light-emitting portion and a non-light-emitting portion disposed around the light-emitting portion, and a driving line that is disposed in the display unit. The shorter a part of the driving line disposed in the light-emitting portion is, the longer a part of the driving line disposed in the non-light-emitting portion is.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 23, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takumi KODAMA, Takeshi KOSHIHARA