Patents by Inventor Nozomu Sugisawa

Nozomu Sugisawa 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: 10394284
    Abstract: An electronic device usable in a manner similar to reading a book and a novel electronic device are provided. The electronic device includes flexible first to n-th display panels (n is a natural number of 4 or more) and an shaft. The first to n-th display panels each include a first surface and a second surface opposite to the first surface. The first and second surfaces are provided with the first and second display portions, respectively. The shaft includes an operating circuit, to which the first to n-th display panels are electrically connected. The first display panel and the second display panel nearest to the first display panel are fixed to the shaft so that an angle formed by straight lines connecting a portion where the first display panel projects from the shaft and the center of the shaft and connecting a portion where the second display panel projects from the shaft and the center of the shaft is (360/n)° in a cross-sectional view along a plane orthogonal to an extending direction of the shaft.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: August 27, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuichi Yanagisawa, Nozomu Sugisawa, Naoyuki Senda
  • Publication number: 20190008014
    Abstract: A display device that can display an image along a curved surface is provided. In the display device, a first display panel and a second display panel overlap each other with a light-transmitting layer provided therebetween. The light-transmitting layer is positioned on a display surface side of the first display panel, and on a side opposite to the display surface of the second display panel. The light-transmitting layer has an average transmittance of 80% or more with respect to light in the wavelength range of 450 nm to 700 nm and a refractive index higher than that of air. A display region of the first display panel overlaps a region transmitting visible light of the second display panel with the light-transmitting layer provided therebetween. It is preferred that the display region of the first display panel not overlap with a region blocking visible light of the second display panel.
    Type: Application
    Filed: September 5, 2018
    Publication date: January 3, 2019
    Inventors: Hisao IKEDA, Nozomu SUGISAWA, Yuichi YANAGISAWA
  • Patent number: 10159135
    Abstract: A display device that can display an image along a curved surface is provided. In the display device, a first display panel and a second display panel overlap each other with a light-transmitting layer provided therebetween. The light-transmitting layer is positioned on a display surface side of the first display panel, and on a side opposite to the display surface of the second display panel. The light-transmitting layer has an average transmittance of 80% or more with respect to light in the wavelength range of 450 nm to 700 nm and a refractive index higher than that of air. A display region of the first display panel overlaps a region transmitting visible light of the second display panel with the light-transmitting layer provided therebetween. It is preferred that the display region of the first display panel not overlap with a region blocking visible light of the second display panel.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 18, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hisao Ikeda, Nozomu Sugisawa, Yuichi Yanagisawa
  • Patent number: 10153376
    Abstract: A semiconductor device including an oxide semiconductor and an organic resin film is manufactured in the following manner. Heat treatment is performed on a first substrate provided with an organic resin film over a transistor including an oxide semiconductor in a reduced pressure atmosphere; handling of the first substrate is performed in an atmosphere containing moisture as little as possible in an inert gas (e.g., nitrogen) atmosphere with a dew point of lower than or equal to ?60° C., preferably with a dew point of lower than or equal to ?75° C. without exposing the first substrate after the heat treatment to the air; and then, the first substrate is bonded to a second substrate that serves as an opposite substrate.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: December 11, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Nozomu Sugisawa, Ryo Hatsumi, Tetsuji Ishitani
  • Publication number: 20180196629
    Abstract: To provide a display device that is suitable for increasing in size. To provide a display device in which display unevenness is suppressed. In a display device, a plurality of display panels are arranged to partly overlap one another. In two of the overlapping display panels, a display panel positioned on the display surface side includes a region transmitting visible light that is adjacent to a display portion, and the region transmitting visible light overlaps with a pixel of a display panel positioned on the lower side. Furthermore, in at least a display portion of the display panel placed on the lower side, an aperture ratio of the pixel overlapping with the region transmitting visible light of the display panel on the upper side is higher than an aperture ratio of another pixel.
    Type: Application
    Filed: December 28, 2017
    Publication date: July 12, 2018
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hisao IKEDA, Nozomu SUGISAWA, Yuichi YANAGISAWA
  • Publication number: 20180047850
    Abstract: A semiconductor device including an oxide semiconductor and an organic resin film is manufactured in the following manner. Heat treatment is performed on a first substrate provided with an organic resin film over a transistor including an oxide semiconductor in a reduced pressure atmosphere; handling of the first substrate is performed in an atmosphere containing moisture as little as possible in an inert gas (e.g., nitrogen) atmosphere with a dew point of lower than or equal to ?60° C., preferably with a dew point of lower than or equal to ?75° C. without exposing the first substrate after the heat treatment to the air; and then, the first substrate is bonded to a second substrate that serves as an opposite substrate.
    Type: Application
    Filed: October 11, 2017
    Publication date: February 15, 2018
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu HIRAKATA, Nozomu SUGISAWA, Ryo HATSUMI, Tetsuji ISHITANI
  • Publication number: 20180039471
    Abstract: A display device or an electronic device with high portability and browsability is provided. A display device which includes two display panels that overlap with each other and in which the area of a portion where the two display panels overlap with each other is variable is provided. The larger the area where the two display panels overlap with each other is, the smaller the display device becomes. The first display panel includes a first region that performs display. The second display panel includes a second region that performs display, and a third region that is adjacent to the second region and transmits visible light. When the third region overlaps with the side of a surface which performs display of the first region, display can be performed using a seamless large display region.
    Type: Application
    Filed: January 14, 2016
    Publication date: February 8, 2018
    Inventors: Yuichi YANAGISAWA, Nozomu SUGISAWA, Natsuko TAKASE
  • Patent number: 9858028
    Abstract: To provide a display device that is suitable for increasing in size. To provide a display device in which display unevenness is suppressed. In a display device, a plurality of display panels are arranged to partly overlap one another. In two of the overlapping display panels, a display panel positioned on the display surface side includes a region transmitting visible light that is adjacent to a display portion, and the region transmitting visible light overlaps with a pixel of a display panel positioned on the lower side. Furthermore, in at least a display portion of the display panel placed on the lower side, an aperture ratio of the pixel overlapping with the region transmitting visible light of the display panel on the upper side is higher than an aperture ratio of another pixel.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: January 2, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hisao Ikeda, Nozomu Sugisawa, Yuichi Yanagisawa
  • Patent number: 9854629
    Abstract: A display device suitable for increasing in size, a display device where display unevenness is suppressed, or a display device that can display an image on a curved surface is provided. The display device includes a first display panel, a second display panel, a first adhesive layer, and a substrate. The first and second display panels each include a first region, a second region, and a barrier layer. The barrier layer includes a portion overlapping with the first region and a portion overlapping with the second region. The first region includes a region transmitting visible light. The second region can display an image. The barrier layer contains an inorganic insulating material and includes a region in contact with the first adhesive layer and a region with a thickness of 10 nm to 2 ?m. The display device includes a region where the substrate, the first adhesive layer, the first region of the second display panel, and the second region of the first display panel overlap each other.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: December 26, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hisao Ikeda, Nozomu Sugisawa, Yuichi Yanagisawa
  • Publication number: 20170359914
    Abstract: An electronic device usable in a manner similar to reading a book and a novel electronic device are provided. The electronic device includes flexible first to n-th display panels (n is a natural number of 4 or more) and an shaft. The first to n-th display panels each include a first surface and a second surface opposite to the first surface. The first and second surfaces are provided with the first and second display portions, respectively. The shaft includes an operating circuit, to which the first to n-th display panels are electrically connected. The first display panel and the second display panel nearest to the first display panel are fixed to the shaft so that an angle formed by straight lines connecting a portion where the first display panel projects from the shaft and the center of the shaft and connecting a portion where the second display panel projects from the shaft and the center of the shaft is (360/n)° in a cross-sectional view along a plane orthogonal to an extending direction of the shaft.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 14, 2017
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuichi YANAGISAWA, Nozomu SUGISAWA, Naoyuki SENDA
  • Patent number: 9793410
    Abstract: A semiconductor device including an oxide semiconductor and an organic resin film is manufactured in the following manner. Heat treatment is performed on a first substrate provided with an organic resin film over a transistor including an oxide semiconductor in a reduced pressure atmosphere; handling of the first substrate is performed in an atmosphere containing moisture as little as possible in an inert gas (e.g., nitrogen) atmosphere with a dew point of lower than or equal to ?60° C., preferably with a dew point of lower than or equal to ?75° C. without exposing the first substrate after the heat treatment to the air; and then, the first substrate is bonded to a second substrate that serves as an opposite substrate.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: October 17, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Nozomu Sugisawa, Ryo Hatsumi, Tetsuji Ishitani
  • Patent number: 9564609
    Abstract: A light-emitting element disclosed includes a first electrode layer; a second electrode layer which transmits light; and a light-emitting layer interposed between the first electrode layer and the second electrode layer. The first electrode layer includes a first conductive layer which is able to reflect light, a second conductive layer provided over the first conductive layer and including titanium, and a third conductive layer which transmits light and contains a metal oxide having work function higher than that of a material of the first conductive layer.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: February 7, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshiki Sasaki, Nozomu Sugisawa, Hisao Ikeda, Satoshi Seo, Nobuharu Ohsawa, Shunpei Yamazaki
  • Publication number: 20170012137
    Abstract: A semiconductor device including an oxide semiconductor and an organic resin film is manufactured in the following manner. Heat treatment is performed on a first substrate provided with an organic resin film over a transistor including an oxide semiconductor in a reduced pressure atmosphere; handling of the first substrate is performed in an atmosphere containing moisture as little as possible in an inert gas (e.g., nitrogen) atmosphere with a dew point of lower than or equal to ?60° C., preferably with a dew point of lower than or equal to ?75° C. without exposing the first substrate after the heat treatment to the air; and then, the first substrate is bonded to a second substrate that serves as an opposite substrate.
    Type: Application
    Filed: September 26, 2016
    Publication date: January 12, 2017
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: YOSHIHARU HIRAKATA, NOZOMU SUGISAWA, RYO HATSUMI, TETSUJI ISHITANI
  • Patent number: 9460940
    Abstract: A semiconductor device including an oxide semiconductor and an organic resin film is manufactured in the following manner. Heat treatment is performed on a first substrate provided with an organic resin film over a transistor including an oxide semiconductor in a reduced pressure atmosphere; handling of the first substrate is performed in an atmosphere containing moisture as little as possible in an inert gas (e.g., nitrogen) atmosphere with a dew point of lower than or equal to ?60° C., preferably with a dew point of lower than or equal to ?75° C. without exposing the first substrate after the heat treatment to the air; and then, the first substrate is bonded to a second substrate that serves as an opposite substrate.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: October 4, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Nozomu Sugisawa, Ryo Hatsumi, Tetsuji Ishitani
  • Patent number: 9391128
    Abstract: Color purity of a light emitting element is improved without an adverse effect such as reduction in voltage and luminance efficiency. The light emitting element has a light emitting laminated body including a light emitting layer between a pair of electrodes. A buffer layer is provided to be in contact with at least one of the electrodes. One of the electrodes is an electrode having high reflectance and the other is a translucent electrode. By employing a translucent electrode, light can be transmitted and reflected. An optical distance between the electrodes is adjusted in accordance with a thickness of the buffer layer, and accordingly, light can be resonated between the electrodes. The buffer layer is made of a composite material including an organic compound and a metal compound; therefore, voltage and luminance efficiency of the light emitting element is not affected even if a distance between the electrodes becomes long.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: July 12, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Ryoji Nomura, Satoshi Seo, Yuji Iwaki, Nozomu Sugisawa
  • Patent number: 9343515
    Abstract: A display device that includes a reflective electrode; a transparent electrode; a partition; an EL layer formed over the partition and the transparent electrode; a semi-transmissive electrode formed over the EL layer; and a coloring layer over the semi-transmissive electrode. A light-emitting region is formed to overlap with the transparent electrode, the EL layer, the semi-transmissive electrode, and the coloring layer. A non-light-emitting region is formed to overlap with the transparent electrode, the partition, the EL layer, and the coloring layer. The non-light-emitting region is formed to surround the light-emitting region. The sum of the optical length of the transparent electrode and the optical length of the EL layer is adjusted to fulfill a condition of a microcavity intensifying light of the color of the coloring layer. The optical length of the partition in the non-light-emitting region is adjusted to weaken external light incident through the coloring layer.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: May 17, 2016
    Assignees: Semiconductor Energy Laboratory Co., Ltd., Sharp Kabushiki Kaisha
    Inventors: Nozomu Sugisawa, Hisao Ikeda, Katsuhiro Kikuchi, Manabu Niboshi, Satoshi Inoue, Yuto Tsukamoto, Shinichi Kawato
  • Publication number: 20160132281
    Abstract: Provided is a display system or a display device that is suitable for increasing in size. The display system includes a first display panel, a second display panel, a detection means, and a compensation means. The first display panel includes a first display region. The second display panel includes a second display region. The first display region and the second display region include a first region where they overlap. The detection means has a function of detecting the size of the first region. The compensation means has a function of compensating an image displayed on the first display region in accordance with the change in the size of the first region.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 12, 2016
    Inventors: Shunpei YAMAZAKI, Yuichi YANAGISAWA, Daiki NAKAMURA, Nozomu SUGISAWA, Hisao IKEDA, Naoyuki SENDA, Kensuke YOSHIZUMI
  • Patent number: 9324971
    Abstract: A light-emitting module which efficiently extracts light emitted from a light-emitting element is provided. Alternatively, a light-emitting module having lower power consumption or improved reliability is provided. A light-emitting module includes a window material having a light-transmitting property, a light-emitting element that emits light transmitted from a light-transmitting layer to the window material, and an optical bonding layer between the window material and the light-transmitting layer. The optical bonding layer includes a thick part overlapping the light-emitting element and a thin part surrounding the thick part. The light-transmitting layer, the optical bonding layer, and the window material are provided in decreasing order of refractive index.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 26, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Nozomu Sugisawa, Hisao Ikeda, Noriko Miyairi, Naoyuki Senda
  • Publication number: 20160044751
    Abstract: A display device suitable for increasing in size, a display device where display unevenness is suppressed, or a display device that can display an image on a curved surface is provided. The display device includes a first display panel, a second display panel, a first adhesive layer, and a substrate. The first and second display panels each include a first region, a second region, and a barrier layer. The barrier layer includes a portion overlapping with the first region and a portion overlapping with the second region. The first region includes a region transmitting visible light. The second region can display an image. The barrier layer contains an inorganic insulating material and includes a region in contact with the first adhesive layer and a region with a thickness of 10 nm to 2 ?m. The display device includes a region where the substrate, the first adhesive layer, the first region of the second display panel, and the second region of the first display panel overlap each other.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 11, 2016
    Inventors: Hisao IKEDA, Nozomu SUGISAWA, Yuichi YANAGISAWA
  • Publication number: 20160037608
    Abstract: A display device that can display an image along a curved surface is provided. In the display device, a first display panel and a second display panel overlap each other with a light-transmitting layer provided therebetween. The light-transmitting layer is positioned on a display surface side of the first display panel, and on a side opposite to the display surface of the second display panel. The light-transmitting layer has an average transmittance of 80% or more with respect to light in the wavelength range of 450 nm to 700 nm and a refractive index higher than that of air. A display region of the first display panel overlaps a region transmitting visible light of the second display panel with the light-transmitting layer provided therebetween. It is preferred that the display region of the first display panel not overlap with a region blocking visible light of the second display panel.
    Type: Application
    Filed: July 23, 2015
    Publication date: February 4, 2016
    Inventors: Hisao IKEDA, Nozomu SUGISAWA, Yuichi YANAGISAWA