Patents by Inventor Tetsuo Urabe

Tetsuo Urabe 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: 20120262943
    Abstract: A display unit in which the view angle is limited and the front luminance is improved. The display unit includes a display device, and a light guiding part which is provided to face the display device. The light guiding part, has an incident face facing the display device, an emitting face, a reflective surface on a side thereof, and a cross section expanding from the incident face to the emitting face.
    Type: Application
    Filed: June 21, 2012
    Publication date: October 18, 2012
    Applicant: SONY CORPORATION
    Inventors: Tetsuo Urabe, Yuichi Iwase, Koichi Tsukihara, Yoichi Tomo, Toshihiro Fukuda
  • Patent number: 8226256
    Abstract: A display unit which the view angle is limited and the front luminance is improved is provided. The display unit includes a display device, and a light guiding part which is provided to face the display device, has an incident face on the side opposing to the display device, an emitting face on the opposite side of the display device, and a reflective face on the side face, and has a cross section expanding from the incident face to the emitting face.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: July 24, 2012
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Yuichi Iwase, Koichi Tsukihara, Yoichi Tomo, Toshihiro Fukuda
  • Patent number: 7656478
    Abstract: A display apparatus includes a first substrate, a second substrate separated from the first substrate by a predetermined gap, an electro-optical layer located within the gap, a diffusing reflection layer having a plurality of adjacent polygonal columns, and electrodes formed on at least one of the first substrate and second substrate for application of voltage to the electro-optical layer. The polygonal columns comprise upper end sloping surfaces having a maximum inclination angle of less than 12°.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: February 2, 2010
    Assignee: Sony Corporation
    Inventors: Takayuki Fujioka, Hideo Kataoka, Tetsuo Urabe
  • Patent number: 7602461
    Abstract: There is provided a method of manufacturing a diffusing reflector which assures high diffusion efficiency and excellent reflection characteristic for the lighting. First, a resin film having photosensitivity is formed on a substrate 2. Next, gathering of pillar-shaped bodies isolated each other by the patterning of resin film with the photolithography is provided. Subsequently, the uneven surface layer having the maximum inclination angle under 12° is formed by gently deforming individual pillar-shaped bodies with the heat treatment. Moreover, the gently deformed uneven surface layer is coated with the resin and the flat openings between pillar-shaped bodies arranged discretely are buried to ease the inclination angle. Finally, a metal film 13 formed on the gently deformed uneven surface layer.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: October 13, 2009
    Assignee: Sony Corporation
    Inventors: Takayuki Fujioka, Hideo Kataoka, Tetsuo Urabe
  • Publication number: 20080253132
    Abstract: A display unit which the view angle is limited and the front luminance is improved is provided. The display unit includes a display device, and a light guiding part which is provided to face the display device, has an incident face on the side opposing to the display device, an emitting face on the opposite side of the display device, and a reflective face on the side face, and has a cross section expanding from the incident face to the emitting face.
    Type: Application
    Filed: March 1, 2007
    Publication date: October 16, 2008
    Inventors: Tetsuo Urabe, Yuichi Iwase, Koichi Tsukihara, Yoichi Tomo, Toshihiro Fukuda
  • Publication number: 20070085966
    Abstract: A display apparatus includes a first substrate, a second substrate separated from the first substrate by a predetermined gap, an electro-optical layer located within the gap, a diffusing reflection layer having a plurality of adjacent polygonal columns, and electrodes formed on at least one of the first substrate and second substrate for application of voltage to the electro-optical layer. The polygonal columns comprise upper end sloping surfaces having a maximum inclination angle of less than 12°.
    Type: Application
    Filed: December 8, 2006
    Publication date: April 19, 2007
    Inventors: Takayuki Fujioka, Hideo Kataoka, Tetsuo Urabe
  • Publication number: 20060158583
    Abstract: There is provided a method of manufacturing a diffusing reflector which assures high diffusion efficiency and excellent reflection characteristic for the lighting. First, a resin film having photosensitivity is formed on a substrate 2. Next, gathering of pillar-shaped bodies isolated each other by the patterning of resin film with the photolithography is provided. Subsequently, the uneven surface layer having the maximum inclination angle under 12° is formed by gently deforming individual pillar-shaped bodies with the heat treatment. Moreover, the gently deformed uneven surface layer is coated with the resin and the flat openings between pillar-shaped bodies arranged discretely are buried to ease the inclination angle. Finally, a metal film 13 formed on the gently deformed uneven surface layer.
    Type: Application
    Filed: September 20, 2001
    Publication date: July 20, 2006
    Inventors: Takayuki Fujioka, Hideo Kataoka, Tetsuo Urabe
  • Patent number: 7009340
    Abstract: The invention provides a display unit which can improve emission efficiency of lights for image display, and assure luminance of display images. The display unit comprises micro prisms which are arranged in the positions corresponding to organic EL devices, and which have a high refraction index to refract a light, and auxiliary prisms with a low refraction index which are embedded in voids between each micro prism. A light volume of the light viewed as an image in the direction facing an organic EL display (facing direction) is a total of a light volume of a light essentially emitted from the organic EL device in the facing direction, and lights which are directed in the facing direction by utilizing refraction phenomenon based on differences of refraction index between the micro prism and the auxiliary prism. Compared to the case wherein the micro prisms and the auxiliary prisms are not provided, an emission volume of the light in the facing direction is increased by the light volumes of the lights.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: March 7, 2006
    Assignee: Sony Corporation
    Inventors: Nobutoshi Asai, Tetsuo Urabe, Yuichi Iwase
  • Patent number: 6971938
    Abstract: The invention provides a display of a type of getting light out of a second electrode side, capable of increasing contrast by suppressing external light reflection, simplifying a manufacturing process, and reducing cost, and a method of manufacturing the same. A substrate for driving is provided with organic electroluminescence (EL) devices for getting light out of a cathode side. A red filter, a green filter, and a blue filter are formed on a substrate for sealing by printing so as to face the organic EL devices. By overlapping at least two filters out of the red, green, and blue filters by printing, a black matrix is formed so as to face the boundary region of the organic EL devices, so that external light reflection by a wiring electrode between the devices is suppressed.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: December 6, 2005
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Jiro Yamada, Tatsuya Sasaoka
  • Patent number: 6969291
    Abstract: A display apparatus includes a substrate, a plurality of pixels formed on the substrate, and a barrier plate for separating adjoining pixels from each other. Each pixel includes a lower layer portion having wiring formed on the substrate, an upper layer portion having an organic electro-luminescent element, and a middle layer portion for insulating the lower layer portion and the upper layer portion from each other electrically. The organic electro-luminescent element is connected with the windings through a contact hole formed in the middle layer portion. The barrier plate is disposed in the upper layer portion so as to overlap with a region including a contact hole not suitable for forming the organic electro-luminescent element.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: November 29, 2005
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Tatsuya Sasaoka, Mitsunobu Sekiya, Machio Yamagishi
  • Patent number: 6969948
    Abstract: The invention provides a display of a type of getting light out of a second electrode side, capable of increasing contrast by suppressing external light reflection, simplifying a manufacturing process, and reducing cost, and a method of manufacturing the same. A substrate for driving is provided with organic electroluminescence (EL) devices for getting light out of a cathode side. A red filter, a green filter, and a blue filter are formed on a substrate for sealing by printing so as to face the organic EL devices. By overlapping at least two filters out of the red, green, and blue filters by printing, a black matrix is formed so as to face the boundary region of the organic EL devices, so that external light reflection by a wiring electrode between the devices is suppressed.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 29, 2005
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Jiro Yamada, Tatsuya Sasaoka
  • Publication number: 20040150329
    Abstract: The invention provides a display unit which can improve emission efficiency of lights for image display, and assure luminance of display images. The display unit comprises micro prisms which are arranged in the positions corresponding to organic EL devices, and which have a high refraction index to refract a light, and auxiliary prisms with a low refraction index which are embedded in voids between each micro prism. A light volume of the light viewed as an image in the direction facing an organic EL display (facing direction) is a total of a light volume of a light essentially emitted from the organic EL device in the facing direction, and lights which are directed in the facing direction by utilizing refraction phenomenon based on differences of refraction index between the micro prism and the auxiliary prism. Compared to the case wherein the micro prisms and the auxiliary prisms are not provided, an emission volume of the light in the facing direction is increased by the light volumes of the lights.
    Type: Application
    Filed: October 22, 2003
    Publication date: August 5, 2004
    Inventors: Nobutoshi Asai, Tetsuo Urabe, Yuichi Iwase
  • Publication number: 20040147200
    Abstract: The invention provides a display of a type of getting light out of a second electrode side, capable of increasing contrast by suppressing external light reflection, simplifying a manufacturing process, and reducing cost, and a method of manufacturing the same. A substrate for driving is provided with organic electroluminescence (EL) devices for getting light out of a cathode side. A red filter, a green filter, and a blue filter are formed on a substrate for sealing by printing so as to face the organic EL devices. By overlapping at least two filters out of the red, green, and blue filters by printing, a black matrix is formed so as to face the boundary region of the organic EL devices, so that external light reflection by a wiring electrode between the devices is suppressed.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 29, 2004
    Inventors: Tetsuo Urabe, Jiro Yamada, Tatsuya Sasaoka
  • Publication number: 20040090175
    Abstract: A display apparatus includes a substrate, a plurality of pixels formed on the substrate, and a barrier plate for separating adjoining pixels from each other. Each pixel includes a lower layer portion having wiring formed on the substrate, an upper layer portion having an organic electro-luminescent element, and a middle layer portion for insulating the lower layer portion and the upper layer portion from each other electrically. The organic electro-luminescent element is connected with the windings through a contact hole formed in the middle layer portion. The barrier plate is disposed in the upper layer portion so as to overlap with a region including a contact hole not suitable for forming the organic electro-luminescent element.
    Type: Application
    Filed: June 30, 2003
    Publication date: May 13, 2004
    Inventors: Tetsuo Urabe, Tatsuya Sasaoka, Mitsunobu Sekiya, Machio Yamagishi
  • Publication number: 20030173891
    Abstract: A high-quality tiled display system and a method for manufacturing the same are provided, wherein the tiled display system includes organic EL display panels having improved high contrast by using a black matrix and has inconspicuous boundaries. A UV-curing resin (62) is applied onto principal surfaces of tiled display panels (60), and a sealing substrate (66) is then placed onto a surface having the resin thereon. In this operation, it must be avoided that there are bubbles between the UV-curing resin (62) and the sealing substrate (66). The position of the sealing substrate (66) on the tiled display panel (60) is then adjusted. This adjustment is performed so as to allow the black matrix (64) to be positioned correctly above the auxiliary wires (23) of the ribs (22) and to be positioned correctly above the boundaries (68) of the display panels (50).
    Type: Application
    Filed: February 11, 2003
    Publication date: September 18, 2003
    Inventors: Yasuhiro Chiba, Tetsuo Urabe
  • Patent number: 6614174
    Abstract: A display apparatus includes a substrate, a plurality of pixels formed on the substrate, and a barrier plate for separating adjoining pixels from each other. Each pixel includes a lower layer portion having wiring formed on the substrate, an upper layer portion having an organic electro-luminescent element, and a middle layer portion for insulating the lower layer portion and the upper layer portion from each other electrically. The organic electro-luminescent element is connected with the wiring through a contact hole formed in the middle layer portion. The barrier plate is disposed in the upper layer portion so as to overlap with a region including a contact hole not suitable for forming the organic electro-luminescent element.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: September 2, 2003
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Tatsuya Sasaoka, Mitsunobu Sekiya, Machio Yamagishi
  • Publication number: 20030107314
    Abstract: The invention provides a display of a type of getting light out of a second electrode side, capable of increasing contrast by suppressing external light reflection, simplifying a manufacturing process, and reducing cost, and a method of manufacturing the same. A substrate for driving is provided with organic electroluminescence (EL) devices for getting light out of a cathode side. A red filter, a green filter, and a blue filter are formed on a substrate for sealing by printing so as to face the organic EL devices. By overlapping at least two filters out of the red, green, and blue filters by printing, a black matrix is formed so as to face the boundary region of the organic EL devices, so that external light reflection by a wiring electrode between the devices is suppressed.
    Type: Application
    Filed: November 19, 2002
    Publication date: June 12, 2003
    Inventors: Tetsuo Urabe, Jiro Yamada, Tatsuya Sasaoka
  • Patent number: 6559916
    Abstract: A reflective guest-host liquid-crystal display device includes a first substrate for receiving incident light, on the inner surface of which transparent electrodes are formed; a second substrate which has a reflective film formed thereon and which is spaced to face the first substrate with a predetermined spacing; an electro-optical element held between the first and second substrates, which electro-optical element has a lamination structure including a guest-host liquid-crystal layer which contains a dichroic dye and which is uniformly oriented with respect to the transparent electrode, and an optical thin-film layer which has a predetermined optical anisotropic axis and which is formed at least on the reflective film, the optical thin-film layer being formed from a polymer liquid crystal having liquid crystal molecules which are uniaxially oriented along the optical anisotropic axis; and a passivation layer which is interposed between the optical thin-film layer and the liquid crystal layer.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: May 6, 2003
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Hideo Kataoka, Nobuyuki Shigeno
  • Patent number: 6525792
    Abstract: A diffusing reflector provides high diffusion efficiency and superior reflection characteristics. The diffusing reflector includes a substrate, a resin film on the substrate, and a metal film formed on the resin film. The resin film indudes multiple adjacent polygonal columns that have upper end sloping surfaces with a maximum inclination angle of 12 degrees or less.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: February 25, 2003
    Assignee: Sony Corporation
    Inventors: Takayuki Fujioka, Hideo Kataoka, Tetsuo Urabe
  • Patent number: 6476889
    Abstract: A hybrid type display apparatus capable of maintaining color purity in a case of transmission mode display, and improving lightness of color in a case of reflection mode display is provided. This hybrid type display apparatus is comprised of: a pair of substrates comprising a first substrate on a front side and a second substrate on a rear side, disposed in opposite directions spaced apart from each other; a first electrode provided on an internal surface of the first substrate; a second electrode provided on an internal surface of the second substrate; a color filter provided on the first substrate, aligned with a pixel in a portion between the first electrode and the second electrode spaced apart in the opposite directions from each other; a liquid crystal layer interposed between the first and the second substrates; and a reflection layer provided on the second substrate.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: November 5, 2002
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Nobuyuki Shigeno, Takayuki Fujioka