Patents by Inventor Reiko Wachi

Reiko Wachi 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).

  • Patent number: 9671640
    Abstract: In an electro-optical device 100, a color filter substrate 20 is provided with colored pixels, which are: a red pixel 2(R) with a colored layer 28(R) formed inside a concave portion 25(R) formed in a first surface 20s of a light-transmissive substrate 20d, a green pixel 2(G) with a colored layer 28(G) formed inside a concave portion 25(G) formed in said surface, and a blue pixel 2(B) with a colored layer 28(B) formed inside a concave portion 25(B) formed in said surface. In addition, in the substrate 20d, a non-colored pixel 2(W), at which no colored layer is provided, is provided outside the concave portion 25(R), 25(G), 25(B) at a position where the thickness of the substrate 20d is greater than that at the colored pixels.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: June 6, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Reiko Wachi, Hidetoshi Ushiyama, Naotaka Kubota
  • Patent number: 9618786
    Abstract: In an electro-optical device 100, a color filter substrate 20 is provided with colored pixels, which are: a red pixel 2(R) with a colored layer 28(R) formed inside a concave portion 25(R) formed in a first surface 20s of a light-transmissive substrate 20d, a green pixel 2(G) with a colored layer 28(G) formed inside a concave portion 25(G) formed in said surface, and a blue pixel 2(B) with a colored layer 28(B) formed inside a concave portion 25(B) formed in said surface. In addition, in the substrate 20d, a non-colored pixel 2(W), at which no colored layer is provided, is provided outside the concave portion 25(R), 25(G), 25(B) at a position where the thickness of the substrate 20d is greater than that at the colored pixels.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: April 11, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Reiko Wachi, Hidetoshi Ushiyama, Naotaka Kubota
  • Publication number: 20160170260
    Abstract: In an electro-optical device 100, a color filter substrate 20 is provided with colored pixels, which are: a red pixel 2(R) with a colored layer 28(R) formed inside a concave portion 25(R) formed in a first surface 20s of a light-transmissive substrate 20d, a green pixel 2(G) with a colored layer 28(G) formed inside a concave portion 25(G) formed in said surface, and a blue pixel 2(B) with a colored layer 28(B) formed inside a concave portion 25(B) formed in said surface. In addition, in the substrate 20d, a non-colored pixel 2(W), at which no colored layer is provided, is provided outside the concave portion 25(R), 25(G), 25(B) at a position where the thickness of the substrate 20d is greater than that at the colored pixels.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 16, 2016
    Inventors: Reiko Wachi, Hidetoshi Ushiyama, Naotaka Kubota
  • Patent number: 7932973
    Abstract: An electro-optical device includes a plurality of subpixel regions forming a display field and a color filter including a plurality of color layers of which at least one is of an additive primary color. The color layers have different color hues and at least two of the color layers are arranged in at least one of the subpixel regions so as not to overlap with each other in plan view. A method for manufacturing the electro-optical device includes forming the color layers such that at least two of the color layers are arranged in at least one of the subpixel regions so as not to overlap with each other in plan view. An electronic apparatus includes the electro-optical device.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: April 26, 2011
    Assignee: Sony Corporation
    Inventor: Reiko Wachi
  • Patent number: 7566905
    Abstract: An electro-optical apparatus includes a base, a resin film on the base, the resin film having at least one of projections and depressions at an upper surface thereof, and a light reflecting film disposed on the at least one of projections and depressions. The resin film under the light reflecting film includes a first region and a second region. A mode of the at least one of projections and depressions in the first region is different from a mode of the at least one of projections and depressions in the second region. A diffuse reflectivity of the first region is larger than a diffuse reflectivity of the second region.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: July 28, 2009
    Assignee: Epson Imaging Devices Corporation
    Inventor: Reiko Wachi
  • Patent number: 7477346
    Abstract: A liquid crystal display device is provided having excellent contrast and an electronic apparatus using the same, including a first substrate having first wiring patterns thereon; a second substrate having second wiring patterns thereon, wherein the second wiring patterns are placed opposite to the first wiring pattern; and a liquid crystal material interposed between the first substrate and the second substrate, wherein a step is arranged in the liquid crystal display device, and wherein a formation position of a gap between the adjacent first wiring patterns or between the adjacent second wiring patterns and a formation position of the steps which directly or indirectly contact with the liquid crystal material, match.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: January 13, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Reiko Wachi
  • Publication number: 20070279557
    Abstract: An electro-optical device includes a plurality of subpixel regions forming a display field and a color filter including a plurality of color layers of which at least one is of an additive primary color. The color layers have different color hues and at least two of the color layers are arranged in at least one of the subpixel regions so as not to overlap with each other in plan view. A method for manufacturing the electro-optical device includes forming the color layers such that at least two of the color layers are arranged in at least one of the subpixel regions so as not to overlap with each other in plan view. An electronic apparatus includes the electro-optical device.
    Type: Application
    Filed: May 9, 2007
    Publication date: December 6, 2007
    Applicant: EPSON IMAGING DEVICES CORPORATION
    Inventor: Reiko WACHI
  • Publication number: 20070164283
    Abstract: An electro-optical apparatus includes a base, a resin film on the base, the resin film having at least one of projections and depressions at an upper surface thereof, and a light reflecting film disposed on the at least one of projections and depressions. The resin film under the light reflecting film includes a first region and a second region. A mode of the at least one of projections and depressions in the first region is different from a mode of the at least one of projections and depressions in the second region. A diffuse reflectivity of the first region is larger than a diffuse reflectivity of the second region.
    Type: Application
    Filed: January 9, 2007
    Publication date: July 19, 2007
    Applicant: SANYO EPSON IMAGING DEVICES CORPORATION
    Inventor: Reiko WACHI
  • Patent number: 7161645
    Abstract: An electro-optical device is provided. The electro-optical device includes a pair of substrates, an electro-optical material held between the pair of substrates by a sealant, and a resin layer provided on at least one substrate of the pair of substrates. Tapers of the resin layer have a plurality of different angles.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: January 9, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Reiko Wachi
  • Patent number: 6924857
    Abstract: Color filters are disposed over a substrate so as to transmit light of a wavelength corresponding to a specified color, and an inner surface of each color filter is a rough surface having ridges and valleys. Further, pigment particle groups in each of which a plurality of pigment particles are aggregated are dispersed in each color filter.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: August 2, 2005
    Assignee: Seiko Epson Corporation
    Inventor: Reiko Wachi
  • Publication number: 20050162597
    Abstract: A liquid crystal display device is provided having excellent contrast and an electronic apparatus using the same, including a first substrate having first wiring patterns thereon; a second substrate having second wiring patterns thereon, wherein the second wiring patterns are placed opposite to the first wiring pattern; and a liquid crystal material interposed between the first substrate and the second substrate, wherein a step is arranged in the liquid crystal display device, and wherein a formation position of a gap between the adjacent first wiring patterns or between the adjacent second wiring patterns and a formation position of the steps which directly or indirectly contact with the liquid crystal material, match.
    Type: Application
    Filed: January 27, 2005
    Publication date: July 28, 2005
    Inventor: Reiko Wachi
  • Publication number: 20050035937
    Abstract: An electro-optical device is provided. In the electro-optical device, metal reflecting films corresponding to a reflective region are formed on a transparent substrate and an insulating layer is formed so as to surround each of the reflecting films, made of a metal such as aluminum, around the metal reflecting films. A color filter layer is formed so as to cover the reflecting films. Therefore, in each pixel region, the reflecting film is provided in the insulating layer in an island shape so as to be separated from adjacent reflecting films.
    Type: Application
    Filed: July 26, 2004
    Publication date: February 17, 2005
    Inventor: Reiko Wachi
  • Patent number: 6819375
    Abstract: A color filter is provided on the surface of a substrate that opposes liquid crystals. The color filter has a surface profile defining the state of alignment of the liquid crystals. More specifically, the color filter has a plurality of alignment control protrusions whose top portions extend in one direction. A thin alignment film is formed so as to cover the color filter having such a surface profile.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: November 16, 2004
    Assignee: Seiko Epson Corporation
    Inventor: Reiko Wachi
  • Publication number: 20040183084
    Abstract: An electro-optical device is provided. The electro-optical device includes a pair of substrates, an electro-optical material held between the pair of substrates by a sealant, and a resin layer provided on at least one substrate of the pair of substrates. Tapers of the resin layer have a plurality of different angles.
    Type: Application
    Filed: January 16, 2004
    Publication date: September 23, 2004
    Inventor: Reiko Wachi
  • Publication number: 20030147027
    Abstract: A color filter is provided on the surface of a substrate that opposes liquid crystals. The color filter has a surface profile defining the state of alignment of the liquid crystals. More specifically, the color filter has a plurality of alignment control protrusions whose top portions extend in one direction. A thin alignment film is formed so as to cover the color filter having such a surface profile.
    Type: Application
    Filed: January 15, 2003
    Publication date: August 7, 2003
    Inventor: Reiko Wachi
  • Publication number: 20030147026
    Abstract: Color filters are disposed over a substrate so as to transmit light of a wavelength corresponding to a specified color, and an inner surface of each color filter is a rough surface having ridges and valleys. Further, pigment particle groups in each of which a plurality of pigment particles are aggregated are dispersed in each color filter.
    Type: Application
    Filed: January 6, 2003
    Publication date: August 7, 2003
    Inventor: Reiko Wachi