Patents by Inventor Koichi Miyachi

Koichi Miyachi 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: 20110229825
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Application
    Filed: December 3, 2010
    Publication date: September 22, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Iichiro INOUE, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 7995177
    Abstract: A liquid crystal display device includes: a vertical alignment liquid crystal layer; first and second substrates facing each other with the liquid crystal layer interposed; first and second electrodes arranged on the first and second substrates to face the liquid crystal layer; and at least one alignment film in contact with the liquid crystal layer. A pixel region includes a first liquid crystal domain in which liquid crystal molecules are tilted in a first direction around the center of a plane, and approximately at the middle of the thickness, of the liquid crystal layer responsive to a voltage applied. The first liquid crystal domain is close to at least a part of an edge of the first electrode. The part includes a first edge portion in which an azimuthal direction, perpendicular to the part and pointing toward the inside of the first electrode, defines an angle greater than 90 degrees to the first direction.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: August 9, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akihiro Shoraku, Toshihide Tsubata, Koichi Miyachi, Iichiro Inoue, Akihiro Yamamoto, Yoshito Hashimoto, Masumi Kubo, Akihito Jinda
  • Publication number: 20110181823
    Abstract: To provide: a production method of a liquid crystal display device, the production method being capable of efficiently and stably providing alignment treatment for an alignment film of the liquid crystal display device, in which a plurality of domains is formed in a pixel region; and an exposure device for alignment treatment.
    Type: Application
    Filed: April 1, 2011
    Publication date: July 28, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki HAKOI, Iichiro INOUE, Koichi MIYACHI
  • Publication number: 20110149210
    Abstract: A liquid crystal display device comprising, a first substrate, a second substrate, a liquid crystal layer provided between the substrates, a first alignment film provided on the liquid crystal layer side surface of the first substrate, and a second alignment film provided on the liquid crystal layer side surface of the second substrate, wherein the liquid crystal layer includes liquid crystal molecules with negative dielectric anisotropy, the first alignment film and the second alignment film align the liquid crystal molecules substantially vertically to the alignment film surfaces and align the liquid crystal molecules near the first alignment film and the second alignment film such that alignment directions of the liquid crystal molecules near the first and second alignment films are perpendicular to each other, and the first alignment film and the second alignment film are photo-alignment films made of a material having a photosensitive group.
    Type: Application
    Filed: March 2, 2011
    Publication date: June 23, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Koichi MIYACHI
  • Publication number: 20110149209
    Abstract: A liquid crystal display device comprising, a first substrate, a second substrate, a liquid crystal layer provided between the substrates, a first alignment film provided on the liquid crystal layer side surface of the first substrate, and a second alignment film provided on the liquid crystal layer side surface of the second substrate, wherein the liquid crystal layer includes liquid crystal molecules with negative dielectric anisotropy, the first alignment film and the second alignment film align the liquid crystal molecules substantially vertically to the alignment film surfaces and align the liquid crystal molecules near the first alignment film and the second alignment film such that alignment directions of the liquid crystal molecules near the first and second alignment films are perpendicular to each other, and the first alignment film and the second alignment film are photo-alignment films made of a material having a photosensitive group.
    Type: Application
    Filed: March 2, 2011
    Publication date: June 23, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Koichi MIYACHI
  • Publication number: 20110141370
    Abstract: The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section.
    Type: Application
    Filed: February 22, 2011
    Publication date: June 16, 2011
    Inventors: Kazunari Tomizawa, Makoto Shiomi, Hidekazu Miyata, Koichi Miyachi, Akihito Jinda
  • Publication number: 20110134380
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Iichiro INOUE, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Publication number: 20110134154
    Abstract: The cold cathode tube for illuminating pixels with light which is in accordance with an output signal has luminance which gradually increases at a rise and gradually decreases at a fall per one frame time. The cold cathode tube contains a fluorescent material of only one of three primary colors of light, and has a certain OFF period or dimming period per one frame time. Between a diffusing plate and a reflecting plate are provided partition walls for parting emitting areas, so that the illumination light of one cold cathode tube does not reach the display elements to be illuminated by the other cold cathode tubes. The emission of each display element is changed per one frame time between a normal ON state and a dim state. The cold cathode tube has two or more OFF periods within one frame time, and luminance of the cold cathode tube is changed per one frame period.
    Type: Application
    Filed: January 31, 2011
    Publication date: June 9, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Koichi Miyachi, Akihito Jinda, Makoto Shiomi
  • Patent number: 7956823
    Abstract: A color display device determines a relationship between RGB components of an input color image signal in terms of their gradation levels, and carries out a different calculation for each input color image signal depending on which of six patterns of the relationship that the input color image signal belongs to. Further, the color display device carries out the calculation for each of the RGB components excluding a component with a smallest gradation level, using variables that vary depending on the respective gradation levels of the RGB components.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: June 7, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koichi Miyachi, Akihito Jinda, Hidekazu Miyata, Kazunari Tomizawa, Makoto Shiomi
  • Publication number: 20110090429
    Abstract: A liquid crystal display device includes an illuminator and a liquid crystal panel for performing displaying by using light which is emitted from the illuminator. The liquid crystal panel includes a pair of substrates, a liquid crystal layer provided between the pair of substrates, and a pair of alignment films provided on sides of the pair of substrates facing the liquid crystal layer. At least one of the alignment films is a photo-alignment film which is imparted with an orientation regulating force through a photo-alignment treatment, and the illuminator includes a light source causing primary generation of at least blue light, among other light which is used for displaying.
    Type: Application
    Filed: December 28, 2010
    Publication date: April 21, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Koichi MIYACHI
  • Patent number: 7916213
    Abstract: The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: March 29, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazunari Tomizawa, Makoto Shiomi, Hidekazu Miyata, Koichi Miyachi, Akihito Jinda
  • Patent number: 7903062
    Abstract: The cold cathode tube for illuminating pixels with light which is in accordance with an output signal has luminance which gradually increases at a rise and gradually decreases at a fall per one frame time. The cold cathode tube contains a fluorescent material of only one of three primary colors of light, and has a certain OFF period or dimming period per one frame time. Between a diffusing plate and a reflecting plate are provided partition walls for parting emitting areas, so that the illumination light of one cold cathode tube does not reach the display elements to be illuminated by the other cold cathode tubes. The emission of each display element is changed per one frame time between a normal ON state and a dim state. The cold cathode tube has two or more OFF periods within one frame time, and, luminance of the cold cathode tube is changed per one frame period.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: March 8, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koichi Miyachi, Akihito Jinda, Makoto Shiomi
  • Publication number: 20110045410
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Application
    Filed: August 12, 2010
    Publication date: February 24, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Publication number: 20110037686
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Application
    Filed: August 12, 2010
    Publication date: February 17, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Publication number: 20110032466
    Abstract: A pixel of a liquid crystal display device of the present invention includes first and second linear alignment control structures 10a, 20a. The first and second linear alignment control structures each include a first component extending along a first axis L1 and a second component extending along a second axis L2 that is different from the first axis. Each of the first and second axes generally bisects angles between the polarization axes of the pair of polarizing plates. At least one group of the first and second linear alignment control structures are ribs 20a. A first component 20a1 of the rib includes three or more first linear portions arranged along the first axis. The first linear portions are arranged such that adjacent two form an angle of ?1 where 50°??1<180° and that the direction which bisects ?1 is generally perpendicular to the first axis. A second component 20a2 of the rib includes three or more second linear portions arranged along the second axis.
    Type: Application
    Filed: April 10, 2009
    Publication date: February 10, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Hakoi, Iichiroh Inoue, Koichi Miyachi
  • Patent number: 7872718
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: January 18, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Publication number: 20100321600
    Abstract: A plurality of display elements each includes two signal lines: S1 and S2. An electrode 4, which is one of the electrodes constituting an element capacitor Cp, is connected to the signal line S1 via a switching element TFT1, while the other electrode 5 is connected to the signal line S2 via a switching element S2. The gate electrodes of the switching elements TFT1 and TFT2 are connected to a single common scanning line G. With this structure the drive voltage applied to the element capacitor can be increased even when a TFT has a limited withstand pressure.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 23, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Koichi Miyachi, Kiyoshi Ogishima, Akihito Jinda
  • Publication number: 20100255222
    Abstract: A display element that includes substrates each having a thin film layer formed by applying a thin film layer composition thereon by an ink-jet method, in which, in the formation of the thin film layers, streaky display unevenness does not develop along a direction in which an ink-jet head discharges the composition having the shape of dots aligned on straight lines from the nozzles. In the liquid crystal display element 1 including an array substrate 5 including an alignment film 8, and a color filter substrate 3 including an alignment film 7, the substrates 5 and 3 being used in a pair, the dots on the alignment films 7 and 8 are aligned such that an interval between the straight lines on the alignment film 8 is displaced by half an interval from an interval between the straight lines on the alignment film 7.
    Type: Application
    Filed: August 20, 2008
    Publication date: October 7, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shinichi Hirato, Iichiro Inoue, Ryoh Ueda, Hiroyuki Hakoi, Koichi Miyachi
  • Publication number: 20100225864
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Application
    Filed: January 25, 2007
    Publication date: September 9, 2010
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 7768589
    Abstract: A plurality of display elements each includes two signal lines: S1 and S2. An electrode 4, which is one of the electrodes constituting an element capacitor Cp, is connected to the signal line S1 via a switching element TFT1, while the other electrode 5 is connected to the signal line S2 via a switching element S2. The gate electrodes of the switching elements TFT1 and TFT2 are connected to a single common scanning line G. With this structure the drive voltage applied to the element capacitor can be increased even when a TFT has a limited withstand pressure.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koichi Miyachi, Kiyoshi Ogishima, Akihito Jinda