Patents Assigned to Shinoda Plasma Co., Ltd.
  • Publication number: 20090315440
    Abstract: This invention provides a plasma tube array-type display sub-module that realizes one seamless large screen of a display device and prevents degradation in quality of an image to be displayed on the large screen. The electromagnetic wave shield layer is formed so as to extend beyond an effective display region over, where the plurality of plasma tubes is arranged on one side of the front-side supporting sheet. Moreover, at least one further function layer is formed only over the effective display region. The front-side supporting sheet with display electrodes and the electromagnetic wave shield layer is bent toward the back direction along a side end of the effective display region in order to join plasma tube array-type display sub-modules.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 24, 2009
    Applicant: SHINODA PLASMA CO., LTD.
    Inventors: Tetsuya MAKINO, Koji Shinohe, Hitoshi Hirakawa, Kenji Awamoto
  • Patent number: 7629733
    Abstract: A display device (12) has a display screen, the display screen comprising a plurality of gas discharge tubes (20R, 20G, 20B, . . . 28R, 28G, 28B) disposed side by side. Each of the gas discharge tubes includes a phosphor layer (4) formed therein and also includes a discharge gas contained therein. Each gas discharge tube has a plurality of light-emitting points. Each of the plurality of gas discharge tubes (20R, 20G, 20B, . . . 28R, 28G, 28B) is curved along the longitudinal direction thereof. The display screen is formed by combining the plurality of gas discharge tubes having different magnitudes of curvature.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: December 8, 2009
    Assignee: Shinoda Plasma Co., Ltd.
    Inventors: Manabu Ishimoto, Yosuke Yamazaki, Hitoshi Yamada, Hitoshi Hirakawa, Akira Tokai, Koji Shinohe, Kenji Awamoto
  • Publication number: 20090289934
    Abstract: A method of driving a display device of a plasma tube array type includes: applying, in a first address period, a scan pulse sequentially to display electrodes, each being one display electrode of each display electrode pair in a first group of display electrode pairs; applying, thereafter, a first supplemental pulse of a same polarity as that of the scan pulse to other display electrodes, each being the other display electrode of each display electrode pair in the first group of display electrode pairs, while applying a second supplemental pulse of a polarity opposite to that of the first supplemental pulse, to address electrodes; and applying, thereafter in the first address period before a second address period, a third supplemental pulse of a polarity opposite to that of the first supplemental pulse to the other display electrode of each display electrode pair in the first group of display electrode pairs.
    Type: Application
    Filed: July 30, 2009
    Publication date: November 26, 2009
    Applicant: SHINODA PLASMA CO., LTD.
    Inventors: Hitoshi Hirakawa, Manabu Ishimoto, Kenji Awamoto
  • Patent number: 7623093
    Abstract: The present invention provides an array display apparatus in which multiple light-emitting tubes each having a fluorescent substance layer inside are aligned and a discharge is generated within these multiple light-emitting tubes, whereby the fluorescent substance layers within the light-emitting tubes are caused to emit light thereby to display an image. The array display apparatus displays an image of uniform luminance irrespective of the planar shape of a display surface when image data representing a uniform image is inputted.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: November 24, 2009
    Assignee: Shinoda Plasma Co., Ltd.
    Inventors: Koji Shinohe, Kenji Awamoto
  • Publication number: 20090273273
    Abstract: A gas discharge tube includes: a elongated tube within which an electron-emissive film is formed, and which is filled with a discharge gas and sealed; a plurality of pairs of display electrodes disposed on a display side of the elongated tube; a signal electrode disposed on a rear side of the elongated tube; and an elongated support member inserted into the elongated tube and extending in the length direction of the elongated tube. The support member has a curved shape so that a curved inner surface thereof forms a discharge space, has longitudinally extending opposite edges, and has a phosphor layer formed on the inner surface of the support member. The support member further has an end wall at each of longitudinally opposite ends thereof. The end walls and the curved inner surface form an elongated depression in the support member.
    Type: Application
    Filed: September 23, 2008
    Publication date: November 5, 2009
    Applicant: Shinoda Plasma Co., Ltd.
    Inventors: Bingang Guo, Hitoshi Hirakawa, Manabu Ishimoto, Yosuke Yamazaki, Kenji Awamoto
  • Publication number: 20090058768
    Abstract: In a display device (10), one scan driver circuit (702) applies a scan voltage to one display electrode (Y1, . . . , Yj, . . . , Yn) of each of pairs of display electrodes of adjacent two (314, 316) of a plurality of units, and applies a sustain voltage pulse to the one display electrode. At least one (502) of at least two sustain voltage circuits applies a potential for a sustain voltage pulse to the other display electrode (X1, . . . , Xj, . . . , Xn) of each of the pairs of display electrodes of at least one of outermost ones of the plurality of units.
    Type: Application
    Filed: September 17, 2008
    Publication date: March 5, 2009
    Applicant: SHINODA PLASMA CO., LTD.
    Inventors: Manabu Ishimoto, Hitoshi Hirakawa, Kenji Awamoto
  • Publication number: 20080258603
    Abstract: A color display device (10) includes: a plurality of gas discharge tubes disposed side by side, the gas discharge tubes having phosphor layers (4R, 4G, 4B) of different materials for respective colors disposed therein and containing discharge gas therein, the gas discharge tubes each having a plurality of light-emitting points disposed along the length thereof; a plurality of display electrodes disposed on display-side surfaces of the gas discharge tubes; and a plurality of signal electrodes (3) disposed on the rear sides of the respective gas discharge tubes. The discharge gas in each of the plurality of gas discharge tubes comprises a mixture of a plurality of different gases. The gas discharge tubes including respective different materials for the phosphor layers have respective different compositions of the plurality of different gases. Each composition of the plurality of different gases has such respective partial pressure ratios as to raise a color temperature.
    Type: Application
    Filed: June 20, 2008
    Publication date: October 23, 2008
    Applicant: SHINODA PLASMA CO., LTD.
    Inventors: Koji Shinohe, Manabu Ishimoto, Kenji Awamoto, Hitoshi Hirakawa, Yosuke Yamazaki
  • Publication number: 20080067936
    Abstract: A color display device (10) includes: a plurality of gas discharge tubes disposed side by side, the gas discharge tubes having phosphor layers (4R, 4G, 4B) of different materials for respective colors disposed therein and containing discharge gas therein, the gas discharge tubes each having a plurality of light-emitting points disposed along the length thereof; a plurality of display electrodes disposed on display-side surfaces of the gas discharge tubes; and a plurality of signal electrodes (3) disposed on the rear sides of the respective gas discharge tubes. Those ones of the gas discharge tubes which include a same, particular material in the phosphor layers (4R, 4G, 4B) thereof have voltage adjusting layers (6R, 6B) disposed between rear surfaces and the signal electrodes thereof. The voltage adjusting layers are made of a material which adjusts a firing voltage for discharge between the display electrodes and the signal electrodes.
    Type: Application
    Filed: November 19, 2007
    Publication date: March 20, 2008
    Applicant: SHINODA PLASMA CO., LTD.
    Inventors: Manabu Ishimoto, Hitoshi Hirakawa, Yosuke Yamazaki, Koji Shinohe, Kenji Awamoto
  • Publication number: 20080061691
    Abstract: A display device (10) includes a plurality of gas discharge tubes (11R, 11G, 11B, . . . ) sandwiched between a front support plate (31) and a plurality of rear support plates (321, 322, . . . 328). The display device further includes: a plurality of display electrodes (2) formed on a surface of the front support plate facing the plurality of gas discharge tubes to extend across tube axes of the plurality of gas discharge tubes; a plurality of signal electrodes (3) formed on surfaces of the plurality of rear support plates facing the plurality of gas discharge tubes to extend along the longitudinal direction of the plurality of gas discharge tubes. Another rear support plate (330) for supporting the plurality of rear support plates is disposed on surfaces of the plurality of rear support plates opposite to the surfaces facing the plurality of gas discharge tubes.
    Type: Application
    Filed: November 9, 2007
    Publication date: March 13, 2008
    Applicant: SHINODA PLASMA CO., LTD.
    Inventors: Akira Tokai, Manabu Ishimoto, Hitoshi Hirakawa, Yosuke Yamazaki, Koji Shinohe, Kenji Awamoto
  • Publication number: 20080048546
    Abstract: A display device (12) has a display screen, the display screen comprising a plurality of gas discharge tubes (20R, 20G, 20B, . . . 28R, 28G, 28B) disposed side by side. Each of the gas discharge tubes includes a phosphor layer (4) formed therein and also includes a discharge gas contained therein. Each gas discharge tube has a plurality of light-emitting points. Each of the plurality of gas discharge tubes (20R, 20G, 20B, . . . 28R, 28G, 28B) is curved along the longitudinal direction thereof. The display screen is formed by combining the plurality of gas discharge tubes having different magnitudes of curvature.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 28, 2008
    Applicant: SHINODA PLASMA CO.,LTD
    Inventors: Manabu Ishimoto, Yosuke Yamazaki, Hitoshi Yamada, Hitoshi Hirakawa, Akira Tokai, Koji Shinohe, Kenji Awamoto
  • Publication number: 20080007176
    Abstract: A display device (10) including a plurality of gas discharge tubes (11R, 11G, 11B) sandwiched between a front support plate (31) and a rear support plate (32). The display device further including: a plurality of display electrodes (2) formed on a surface of the front support plate facing the gas discharge tubes to extend across the axial direction of the gas discharge tubes; and a plurality of signal electrodes (3) formed on a surface of the rear support plate facing the gas discharge tubes to extend along the longitudinal direction of the gas discharge tubes. The plurality of signal electrodes are divided into a plurality of groups (B1, B2, . . . , Ba). Each group includes a predetermined number of signal electrodes. The distance between adjacent ones of the signal electrodes in each group has a first distance. The distance between adjacent ones of said signal electrodes in each group is substantially equal to a first distance (PT).
    Type: Application
    Filed: September 17, 2007
    Publication date: January 10, 2008
    Applicant: SHINODA PLASMA CO., LTD
    Inventors: Manabu Ishimoto, Hitoshi Hirakawa, Kenji Awamoto