Patents by Inventor Junji Tomita

Junji Tomita 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: 8081290
    Abstract: A liquid crystal display panel 20 is manufactured by applying a seal agent 19 to at least of a pair of substrates 10, 12, enclosing the cell region 14; opposing the pair of substrates 10, 12 at a prescribed gap to define a cell space 14; depressurizing the interior of the cell space 14 through an opening 13 formed in at least one of the pair of substrates 10, 12 to thereby securely bond the pair of substrate 10, 12 to each other; and injecting a liquid crystal into the cell space 14. The atmospheric pressure is applied to the pair of substrates 10, 12, whereby a uniform external pressure is applied, and the glass substrates can be securely bonded to each other in good condition.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: December 20, 2011
    Assignee: Fujitsu Limited
    Inventors: Yoshihisa Kurosaki, Junji Tomita
  • Patent number: 8059251
    Abstract: A method of filling a multilayered cell with media. In the method, a multilayered cell having at least two layers, i.e., a first and second layer, is filled with media. The method comprises forming in the first layer a first medium injection region for filling the first layer with a first medium, forming in the second layer a second medium injection region for filling the second layer with a second medium, the second medium injection region corresponding to a region different from the first medium injection region, superposing the first and second layers, forming within the first medium injection region a first through-hole extending through the multilayered cell in the layer-thickness direction, forming within the second medium injection region a second through-hole extending through the multilayered cell in the layer-thickness direction, and injecting the first and second media into the first and second through-holes, respectively, to fill the first and second layers with the first and second media.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: November 15, 2011
    Assignee: Fujitsu Limited
    Inventors: Yoshihisa Kurosaki, Junji Tomita, Toshiaki Yoshihara
  • Patent number: 8049858
    Abstract: A liquid crystal display element of a dot matrix structure comprises a liquid crystal panel constituted by a first substrate equipped with a first electrode, a second substrate equipped with a second electrode, and a liquid crystal layer furnished between the first substrate and the second substrate, wherein the liquid crystal layer comprises a support column of a wall structure possessing adhesiveness, wherein a part of each of the support columns has a wider part.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: November 1, 2011
    Assignee: Fujitsu Limited
    Inventor: Junji Tomita
  • Publication number: 20110261304
    Abstract: A liquid crystal layer sandwiched by a lower substrate 1 and an upper substrate comprises cross-shaped supports, a wall surface structure, and a seal member. The supports 15 are provided at the four sides of each pixel. Contiguous pixels are linked via openings between supports. The wall surface structure is provided in the periphery of the supports arranged in the form of a grid. The supports and the wall surface structure are a same member having adhesiveness. A portion of the wall surface structure is an inlet of liquid crystal. A seal member is provided at the perimeter of the wall surface structure 17. The liquid crystal poured from the inlet is poured into all of pixels via openings. A black matrix in the form of a grid, which covers the top side of all of the supports, is provided on the upper substrate.
    Type: Application
    Filed: July 5, 2011
    Publication date: October 27, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Junji Tomita, Masaki Nose, Tomohisa Shingai
  • Publication number: 20110149212
    Abstract: A liquid crystal display apparatus includes a compound device, a color display device, a driver, and a control circuit. The color display device includes three liquid crystal panels. The liquid crystal display apparatus has a layered structure in which the compound device is layered on the display surface of the color display device.
    Type: Application
    Filed: December 12, 2010
    Publication date: June 23, 2011
    Applicant: FUJITSU LIMITED
    Inventor: Junji TOMITA
  • Publication number: 20100328864
    Abstract: A display element includes a plurality of laminated display panels, each display panel having a material to control light sealed between two substrates, wherein at least in part of the display element, there is a portion where the number of the laminated display panels is different, a bent section is formed at the portion where the number of the laminated display panels is different, and electrodes may be provided or may not provided at the bent section.
    Type: Application
    Filed: September 9, 2010
    Publication date: December 30, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Toshiaki Yoshihara, Junji Tomita
  • Patent number: 7852439
    Abstract: The invention relates to a multi-layer display element configured by a plurality of layers for use as a display section of electronic paper or others, and a manufacturing method for the multi-layer display element. The invention provides a multi-layer display element that allows a pixel area not being narrowed, a high yield of electrode formation, and interlayer connection with no need for a high-temperature process, and a manufacturing method for such a multi-layer display element. The multi-layer liquid crystal display element includes a data signal output terminal group from which data signals are provided, a scanning signal output terminal group from which scanning signals are provided, a data electrode connection wire rod group respectively connecting data electrodes to the data signal output terminal group, and a scanning electrode connection wire rod group respectively connecting scanning electrodes to the scanning signal output terminal group.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: December 14, 2010
    Assignee: Fujitsu Limited
    Inventors: Hisashi Yamaguchi, Fumio Yamagishi, Shigeo Matsunuma, Nobuhiro Imaizumi, Yoshikatsu Ishizuki, Taiji Sakai, Junji Tomita
  • Patent number: 7771615
    Abstract: The invention has an object to provide a liquid crystal composite capable of sufficiently reducing the scattering of light in a focal conic state, a liquid crystal display element excellent in improvements of a color balance and a contrast, and electronic paper using the same. The content of a chiral material is higher in a cholesteric liquid crystal LCg for G than in a cholesteric liquid crystal LCb for B, and is higher in a cholesteric liquid crystal LCr for R than in the cholesteric liquid crystal LCg for G. The cholesteric liquid crystal LCr for R is prepared by mixing about 5 wt % of a chiral material CHl1 of an L-form with a base liquid crystal of an R-form, which contains 27 wt % of CHr1 of the R-form exhibiting a liquid crystallizability for a nematic liquid crystal LCn, and 3 wt % of a chiral material CHr2 of the R-form exhibiting no crystallizability.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: August 10, 2010
    Assignee: Fujitsu Limited
    Inventors: Masaki Nose, Junji Tomita, Yoshihisa Kurosaki
  • Patent number: 7751018
    Abstract: A segment block 61, which is formed into a shape like the numeral eight (“8”) constituted by seven segments 63, is connected to the adjacent segment block 61 by way of liquid crystal injection paths 62, each of which has a key-type S-shaped structure. Within the segment block 61, two pairs of segments 63 each consisting of one left and one right segment and which are located on the opposing upper and lower sides, are mutually connected by way of liquid crystal injection paths 64, each of which has a key-type S-shaped structure, and three segments 63 located at the upper, middle and lower parts are respectively connected to the liquid crystal injection paths 64 by way of linearly structured liquid crystal injection paths 65 that are vertically branched respectively from the liquid crystal injection paths 64.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: July 6, 2010
    Assignee: Fujitsu Limited
    Inventors: Junji Tomita, Masaki Nose, Tomohisa Shingai
  • Patent number: 7746430
    Abstract: A high-contrast reflective liquid crystal display device of a lamination type in which scattering in the focal conic state of cholesteric liquid crystal has been reduced is described. The reflective liquid crystal display device has two or more laminated liquid crystal panels respectively having a liquid crystal layer of the cholesteric liquid crystal having different selective reflection wavelengths and the liquid crystal panel having a liquid crystal layer into which the liquid crystal having a longer selective reflection wavelength has been implanted has a smaller orientation regulating force of the liquid crystal layer applied to the panel.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: June 29, 2010
    Assignee: Fujitsu Limited
    Inventors: Yoshihisa Kurosaki, Toshiaki Yoshihara, Junji Tomita, Masaki Nose
  • Publication number: 20100157215
    Abstract: The invention relates to a liquid crystal display element having a liquid crystal enclosed between a pair of substrates and a multi-layer liquid crystal display element utilizing such elements. A liquid crystal display element having improved strength at enclosing portions thereof is provided without any reduction in the throughput of manufacturing steps along with a multi-layer liquid crystal display element utilizing such elements.
    Type: Application
    Filed: March 4, 2010
    Publication date: June 24, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Yoshihisa Kurosaki, Junji Tomita
  • Patent number: 7733447
    Abstract: A liquid crystal display device in which three cholesteric liquid crystal layers of selective reflection type are laminated, comprises: a first liquid crystal layer arranged on a device observation side selectively reflecting blue; a second liquid crystal layer arranged next to the first liquid crystal layer selectively reflecting green; a third liquid crystal layer arranged next to the second liquid crystal layer selectively reflecting red; and a green cut filter layer arranged between the green liquid crystal layer and the red liquid crystal layer selectively absorbing a light ray of a wavelength of 600 nm or less.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: June 8, 2010
    Assignee: Fujitsu Limited
    Inventors: Junji Tomita, Masaki Nose, Tomohisa Shingai
  • Publication number: 20100097551
    Abstract: A multilayer liquid crystal display element has a plurality of data electrode layer-to-layer interconnects formed in a non-display area of a liquid crystal display panel for connecting data electrodes of liquid crystal display panels for R, G, and B to a plurality of data signal input terminals from layer to layer, and a plurality of scanning electrode layer-to-layer interconnects formed in the non-display area for connecting scanning electrodes of the liquid crystal display panels for R, G, and B to a plurality of scan signal input terminals from layer to layer.
    Type: Application
    Filed: September 17, 2009
    Publication date: April 22, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Fumio Yamagishi, Junji Tomita, Hisashi Yamaguchi
  • Publication number: 20100097550
    Abstract: The invention relates to a multi-layer display element configured by a plurality of layers for use as a display section of electronic paper or others, and a manufacturing method for the multi-layer display element. The invention provides a multi-layer display element that allows a pixel area not being narrowed, a high yield of electrode formation, and interlayer connection with no need for a high-temperature process, and a manufacturing method for such a multi-layer display element. The multi-layer liquid crystal display element includes a data signal output terminal group from which data signals are provided, a scanning signal output terminal group from which scanning signals are provided, a data electrode connection wire rod group respectively connecting data electrodes to the data signal output terminal group, and a scanning electrode connection wire rod group respectively connecting scanning electrodes to the scanning signal output terminal group.
    Type: Application
    Filed: September 17, 2009
    Publication date: April 22, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Hisashi Yamaguchi, Fumio Yamagishi, Shigeo Matsunuma, Nobuhiro Imaizumi, Yoshikatsu Ishizuki, Taiji Sakai, Junji Tomita
  • Patent number: 7616287
    Abstract: A liquid crystal display element according to the present invention includes one or more sets of combinations of a pair of substrates, a liquid crystal layer composed of a liquid crystal composition indicating a cholesteric phase and disposed between the pair of substrates, and at least one layer of insulating thin film to insulate the liquid crystal layer from an electrode, wherein: the insulating thin film has an electrostatic capacity of not more than 10 ?F; the liquid crystal layer has a layer thickness in the range of 2 to 5 ?m; and the liquid crystal composition has a dielectric anisotropy in the range of 20 to 50. The present invention can realize at least one of lowered driving voltage, enlarged operating temperature range, decrease in electric power consumption and wide display maintaining temperature range, in a liquid crystal display element having a semi-permanent display maintaining function (memory function).
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: November 10, 2009
    Assignee: Fujitsu Limited
    Inventors: Masaki Nose, Junji Tomita
  • Publication number: 20090272942
    Abstract: The invention has an object to provide a liquid crystal composite capable of sufficiently reducing the scattering of light in a focal conic state, a liquid crystal display element excellent in improvements of a color balance and a contrast, and electronic paper using the same. The content of a chiral material is higher in a cholesteric liquid crystal LCg for G than in a cholesteric liquid crystal LCb for B, and is higher in a cholesteric liquid crystal LCr for R than in the cholesteric liquid crystal LCg for G. The cholesteric liquid crystal LCr for R is prepared by mixing about 5 wt % of a chiral material CHl1 of an L-form with a base liquid crystal of an R-form, which contains 27 wt % of CHr1 of the R-form exhibiting a liquid crystallizability for a nematic liquid crystal LCn, and 3 wt % of a chiral material CHr2 of the R-form exhibiting no crystallizability.
    Type: Application
    Filed: July 7, 2009
    Publication date: November 5, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Masaki Nose, Junji Tomita, Yoshihisa Kurosaki
  • Patent number: 7575787
    Abstract: The invention has an object to provide a liquid crystal composite capable of sufficiently reducing the scattering of light in a focal conic state, a liquid crystal display element excellent in improvements of a color balance and a contrast, and electronic paper using the same. The content of a chiral material is higher in a cholesteric liquid crystal LCg for G than in a cholesteric liquid crystal LCb for B, and is higher in a cholesteric liquid crystal LCr for R than in the cholesteric liquid crystal LCg for G. The cholesteric liquid crystal LCr for R is prepared by mixing about 5 wt % of a chiral material CHl1 of an L-form with a base liquid crystal of an R-form, which contains 27 wt % of CHr1 of the R-form exhibiting a liquid crystallizability for a nematic liquid crystal LCn, and 3 wt % of a chiral material CHr2 of the R-form exhibiting no crystallizability.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: August 18, 2009
    Assignee: Fujitsu Limited
    Inventors: Masaki Nose, Junji Tomita, Yoshihisa Kurosaki
  • Patent number: 7554516
    Abstract: A display device displaying a color by mixing light reflected by a first reflection element 22 and light reflected by a second reflection element 26 by additive color mixture, in which the light of a first wavelength reflected by the first reflection element and light of a second wavelength reflected by the second reflection element have a mutually complementary color relationship. Thus, the display device, which can make good black and white display by a simple structure and can be driven by a simple method, can be realized.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: June 30, 2009
    Assignee: Fujitsu Limited
    Inventors: Masaki Nose, Junji Tomita
  • Publication number: 20090161052
    Abstract: A display element comprises: a pair of substrates disposed opposite to each other; a liquid crystal enclosed between the pair of substrates; a wall structure which is formed to surround a pixel region and which is in contact with both of the pair of substrates; and an opening section which is an opening provided in a part of the wall structure to allow the liquid crustal to flow out of the pixel region.
    Type: Application
    Filed: February 23, 2009
    Publication date: June 25, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Masaki NOSE, Junji TOMITA, Tsuneo WATANUKI, Toshiaki YOSHIHARA
  • Publication number: 20090027326
    Abstract: The present invention provides a display element capable of allowing a user to recognize the content of an image in a short time during screen rewriting, a method of driving the same, and an electronic paper including the same. At the time of image display, B and R pixels 12b(i, 1) to 12b(i, 320) and 12r(i, 1) to 12r(i, 320) in i-th rows of B and R display units 6b and 6r and G pixels 12g(241?i, 1) to 12g(241?i, 320) in a (241?i)-th row of a G display unit 6g are driven substantially at the same time.
    Type: Application
    Filed: September 25, 2008
    Publication date: January 29, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Toshiaki YOSHIHARA, Masaki NOSE, Junji TOMITA, Yoshihisa KUROSAKI