Patents by Inventor Yuko Komatsu

Yuko Komatsu 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: 7605798
    Abstract: An electro-optic device includes spaced apart pixel electrodes in respective unit areas arranged in a plane defined by dividing the plane into common shapes without gaps, and an electro-optic layer facing the pixel electrodes. In response to an applied first electric potential to the pixel electrodes, the electro-optic layer expresses a first grayscale, and in response to an applied second electric potential, it expresses a second grayscale. The distance between adjacent pixel electrodes is selected so that a boundary between an area expressing the first grayscale and an area expressing the second grayscale is substantially identical to a boundary between the unit area provided with one of the adjacent pixel electrodes and the unit area provided with another of the adjacent pixel electrodes.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: October 20, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Yuko Komatsu
  • Publication number: 20090057681
    Abstract: A method for manufacturing a thin-film device includes forming a separation layer on a substrate, forming a base insulating layer on the separation layer, forming a thin-film device layer on the base insulating layer, bonding a transfer layer including the base insulating layer and the thin-film device layer to a transfer body with an adhesive, causing intralayer delamination or interfacial delamination in the separation layer, and removing the transfer layer from the substrate. The thin-film device layer includes a first wiring sublayer which is located at the bottom of the thin-film device layer and which is in contact with the base insulating layer, a dielectric sublayer which is in contact with a surface of the first wiring sublayer, a semiconductor sublayer electrically insulated from the first wiring sublayer with the dielectric sublayer, and a second wiring sublayer formed subsequently to the semiconductor sublayer.
    Type: Application
    Filed: July 29, 2008
    Publication date: March 5, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuko KOMATSU
  • Patent number: 7464312
    Abstract: The invention provides a shifter register comprising: a plurality of shift circuit blocks connected in series, each of which includes a predetermined even-number of shift unit circuits; a plurality of clock decision circuit, each of which is provided for each of a plurality of the shift circuit blocks and receives internal condition signals from even-numbered shift unit circuits included in a corresponding shift circuit block and an internal condition signal from the last shift unit circuit included in a preceding shift circuit block, each of the clock decision circuit outputting an operation allowance signal when at least one of the internal condition signals has a first level; and a plurality of clock control circuits, each of which is provided for each of a plurality of the shift circuit blocks and performs a clock signal output operation when the operation allowance signal is supplied from a corresponding clock decision circuit commonly connected to another shift circuit block.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: December 9, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Yuko Komatsu
  • Publication number: 20080273022
    Abstract: An electrophoresis display device includes a first electrode, a second electrode facing the first electrode, an electrophoresis element interposed between the first electrode and the second electrode and containing charged electrophoresis particles, a pixel including a first pixel circuit and a second pixel circuit which give a potential difference between the first electrode and the second electrode, a first scan line and a first data line which are connected to the first pixel circuit, and a second scan line and a second data line which are connected to the second pixel circuit, in which a signal supplied to the first pixel circuit from the first data line during a select period specified by a select signal of the first scan line is an erase signal, and wherein a signal supplied to the second pixel circuit from the second data line during a select period specified by a select signal of the second scan line is an image signal.
    Type: Application
    Filed: February 20, 2008
    Publication date: November 6, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuko KOMATSU
  • Publication number: 20080186259
    Abstract: A display device for an active matrix drive includes a plurality of pixels each having display retainability and including a first sub-pixel through an nth sub-pixel (n is a natural number greater than 1), a selection switching element provided correspondingly to each of the sub-pixels, connected to a data line, and for selecting the corresponding sub-pixel, and an external input switch provided correspondingly to each of the sub-pixels, connected to a selection line, and for supplying a signal from the selection line to the corresponding sub-pixel in response to an input operation from the outside. The selection line includes n kinds of selection lines, from a first selection line connected to the first sub-pixel to an nth selection line connected to the nth sub-pixel, and the n kinds of selection lines are connected to selection switches for one of selecting the selection lines individually and selecting two or more of the selection lines in a lump.
    Type: Application
    Filed: January 29, 2008
    Publication date: August 7, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masayoshi TODOROKIHARA, Eiju HIRAI, Yuko KOMATSU
  • Publication number: 20080174852
    Abstract: A display device of active matrix driving type has a plurality of pixel regions arranged in a plane, each of the pixel regions including a selection switching element that controllably switches a supply of a signal to the each of the pixel regions, a pressure sensitive switching element that controllably switches a supply of a signal to the each of the pixel regions in response to an input of an external pressure, and a retention capacitance that retains a signal supplied to the each of the pixel regions, wherein the pressure sensitive switching element includes a semiconductor layer having a channel region, and a piezoelectric film laminated on the channel region, and the retention capacitance includes a pair of capacitance electrodes and a ferroelectric film sandwiched between the pair of capacitance electrodes.
    Type: Application
    Filed: January 21, 2008
    Publication date: July 24, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Eiju HIRAI, Masayoshi TODOROKIHARA, Yuko KOMATSU
  • Patent number: 7248395
    Abstract: An electrophoretic device including a pair of electrodes, an electrophoretic dispersion liquid including an electrophoretic particle and a dispersion medium and having electric properties of electric resistance Rep and capacitance Cep, a microcapsule in which the electrophoretic dispersion liquid is enclosed and provided between the pair of the electrodes and a binder layer fixing the microcapsule between the electrodes and having electric properties of electric resistance Rb and capacitance Cb, and wherein a ratio of the electric properties of the electrophoretic dispersion liquid and the binder layer satisfies a relationship RbCb?RepCep.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: July 24, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Yuko Komatsu
  • Publication number: 20070061648
    Abstract: The invention provides a shifter register comprising: a plurality of shift circuit blocks connected in series, each of which includes a predetermined even-number of shift unit circuits; a plurality of clock decision circuit, each of which is provided for each of a plurality of the shift circuit blocks and receives internal condition signals from even-numbered shift unit circuits included in a corresponding shift circuit block and an internal condition signal from the last shift unit circuit included in a preceding shift circuit block, each of the clock decision circuit outputting an operation allowance signal when at least one of the internal condition signals has a first level; and a plurality of clock control circuits, each of which is provided for each of a plurality of the shift circuit blocks and performs a clock signal output operation when the operation allowance signal is supplied from a corresponding clock decision circuit commonly connected to another shift circuit block.
    Type: Application
    Filed: August 8, 2006
    Publication date: March 15, 2007
    Applicant: Seiko Epson Corporation
    Inventor: Yuko Komatsu
  • Publication number: 20060221049
    Abstract: In an electrophoretic display device sandwiching an electrophoretic material between a first substrate and a second substrate, a plurality of pixels are formed on the first substrate; each pixel is composed of n subpixels (n being an integer of 2 or more); and the n subpixels contain at least one pair of adjoining subpixels that cannot be divided by a straight line.
    Type: Application
    Filed: March 27, 2006
    Publication date: October 5, 2006
    Inventors: Mitsutoshi Miyasaka, Yuko Komatsu
  • Publication number: 20060187189
    Abstract: An electro-optic device includes a plurality of pixel electrodes each formed for respective unit areas with a distance between one of the pixel electrodes and another of the pixel electrodes adjacent to the one of the pixel electrodes, the unit areas being arranged in a plane and defined by dividing the plane into the same shapes without a gap, and an electro-optic layer that faces each of the pixel electrodes, and in response to application of a first electric potential to each of the pixel electrodes, expresses a first grayscale in an area corresponding to each of the pixel electrodes, in response to application of a second electric potential different form the first electrical potential to each of the pixel electrodes, expresses a second grayscale different from the first grayscale in an area corresponding to each of the pixel electrodes, wherein the distance between one of the pixel electrodes and another of the pixel electrodes adjacent to the one of the pixel electrodes is selected so that a boundary be
    Type: Application
    Filed: January 13, 2006
    Publication date: August 24, 2006
    Inventor: Yuko Komatsu
  • Publication number: 20060187527
    Abstract: An electrophoretic device including a pair of electrodes, an electrophoretic dispersion liquid including an electrophoretic particle and a dispersion medium and having electric properties of electric resistance Rep and capacitance Cep, a microcapsule in which the electrophoretic dispersion liquid is enclosed and provided between the pair of the electrodes and a binder layer fixing the microcapsule between the electrodes and having electric properties of electric resistance Rb and capacitance Cb, and wherein a ratio of the electric properties of the electrophoretic dispersion liquid and the binder layer satisfies a relationship RbCb?RepCep.
    Type: Application
    Filed: January 10, 2006
    Publication date: August 24, 2006
    Inventor: Yuko Komatsu