Patents by Inventor Kazuhiko Tsuda

Kazuhiko Tsuda 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: 20180284525
    Abstract: A method for manufacturing a liquid crystal display device including a first substrate and a second substrate, each of the first substrate and the second substrate having flexibility, the method includes a first step of manufacturing a display panel having flexibility, the display panel including the first substrate and the second substrate, a second step of bending the display panel such that a display of the display panel is constructed with a first flat surface and a second flat surface and a curved surface disposed between the first flat surface and the second flat surface, the curved surface having a predetermined curvature radius; and a third step of fixing the display panel subjected to the second step to a cover member keeping the curved surface in a given shape.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Inventors: Tomoharu NOTOSHI, Kazuhiko TSUDA
  • Publication number: 20180284546
    Abstract: A curved dual-panel electronic display device including a back display panel having a curved shape and a plurality of pixels and a front display panel having a curved shape and a plurality of pixels. The front display panel back display panel being stacked and curved such that the outer surface of the front display has convex shape. A first pixel from the front display panel overlaps with a second pixel from a second display panel in a normal view, and a length of the first pixel in a direction of the curve of the front display panel is larger than the length of the second pixel in a length direction of the curve of the back display panel.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 4, 2018
    Inventors: Kazuhiko TSUDA, Katsuji TANAKA
  • Publication number: 20180286326
    Abstract: An apparatus and method for a liquid crystal display (LCD). The LCD can include a first LCD panel, a second LCD panel stacked on the first LCD panel, and a data processor that generates, based on an external input image signal, a first image data for the first LCD panel and a second image data for the second LCD panel. The data processor may further include a memory storing a position of a defective pixel of a white spot and a controller changing a gray scale level of a first pixel using the position of the defective pixel, the first pixel at least partially overlapping the position of the defective pixel, wherein the defective pixel is in the first LCD panel and the first pixel is in the second LCD panel.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 4, 2018
    Inventors: Kenta ENDO, Kazuhiko TSUDA
  • Publication number: 20180275450
    Abstract: A liquid crystal display device according to an embodiment is disclosed. The liquid crystal display device includes a liquid crystal display panel; a light emitting diode (LED) substrate; a plurality of light emitting diodes (LEDs) disposed on the LED substrate; a first diffuser disposed between the plurality of LEDs and the liquid crystal display panel; a bandpass filter being disposed between the plurality of LEDs and the diffuser; and a plurality of focus lenses corresponding to the plurality of LEDs, wherein each of the LEDs includes one of the plurality of focus lenses.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 27, 2018
    Inventors: Naoki SATO, Kazuhiko TSUDA
  • Publication number: 20180275438
    Abstract: A liquid crystal display device includes: a first display panel; and a second display panel opposing to the first display panel. Each of the first and second display panel includes a plurality of source lines, a plurality of gate lines, a plurality of thin film transistors, and a plurality of pixel electrodes electrically connected to corresponding one of the thin film transistors. In a second display panel, at least two thin film transistors are electrically connected to a same second source line and a same second gate line.
    Type: Application
    Filed: March 22, 2018
    Publication date: September 27, 2018
    Inventors: Ikuko MORI, Teruhisa NAKAGAWA, Kazuhiko TSUDA, Katsuji TANAKA
  • Publication number: 20180217432
    Abstract: A liquid crystal display device includes a plurality of display panels which are disposed so as to overlap each other, each of the display panels displaying an image. The liquid crystal display device includes a first substrate; a second substrate disposed opposite to the first substrate in a first direction; a first liquid crystal layer disposed between the first substrate and the second substrate; a third substrate disposed opposite to the first substrate in a second direction that is an opposite direction to the first direction; and a second liquid crystal layer disposed between the first substrate and the third substrate.
    Type: Application
    Filed: January 29, 2018
    Publication date: August 2, 2018
    Inventors: Ikuko MORI, Tomohiro MURAKOSO, Kazuhiko TSUDA
  • Publication number: 20180217424
    Abstract: A liquid crystal display device in which a plurality of display panels are disposed so as to overlap each other and which displays an image on each of the plurality of display panels. The liquid crystal display device includes a first display panel; and a second display panel disposed so as to overlap the first display panel. The second display panel includes a first substrate on which a source line, a gate line, a thin film transistor, and an organic insulator are formed, a second substrate disposed opposite to the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate, a first spacer is formed in the first substrate to hold a distance between the first substrate and the second substrate. The first spacer and the organic insulator are made of a positive photosensitive resin.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 2, 2018
    Inventors: Tomohiro MURAKOSO, Kazuhiko TSUDA, Ikuko MORI
  • Publication number: 20180165996
    Abstract: The present invention prevents an advance of a crack in a covering layer, without exposing a support. In a region between an edge part of a moistureproof layer (12) and a display region (2), wavy recessed patterns (7a, 7b, and 7c) are continuously or discontinuously provided so to connect one end of the moistureproof layer (12) and another end of the moistureproof layer (12). Each of the wavy recessed patterns (7a, 7b, and 7c) is recessed and is configured to change a direction in which a crack having appeared in the edge part of the moistureproof layer (12) advances.
    Type: Application
    Filed: June 13, 2016
    Publication date: June 14, 2018
    Inventors: Takashi OCHI, Yuki YASUDA, Shoji OKAZAKI, Hiroshi SUGIMOTO, Kenji MISONO, Masahiro HASEGAWA, Noriko WATANABE, Kazuhiko TSUDA
  • Patent number: 9891483
    Abstract: A liquid crystal display device includes a plurality of pixels arranged in a matrix pattern, each pixel including a first electrode and a second electrode for generating a transverse electric field, wherein: in a first group of pixels arranged in a line along either a row direction or a column direction, pairs of pixels are arranged repeatedly, each pair of pixels including two adjacent pixels that are different from each other in terms of an electrode structure of at least one of the first electrode and the second electrode; and voltages of the same polarity are applied to the two adjacent pixels included in the pair of pixels, and voltages of different polarities from each other are applied to two pixel pairs adjacent to each other in the first group of pixels.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: February 13, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yusuke Nishihara, Kazuhiko Tsuda, Tetsuo Fukaya, Hideki Fujimoto, Yoshito Hashimoto, Masahiro Shimizu
  • Publication number: 20180031897
    Abstract: A liquid crystal module which is disposed opposite a backlight includes: a first liquid crystal panel which includes a pair of first transparent substrates; a second liquid crystal panel which is disposed between the backlight and the first liquid crystal panel and includes a pair of second transparent substrates; and a diffuser sheet disposed therebetween. A first transparent substrate that is closer to the diffuser sheet among the pair of first transparent substrates is thinner than a second transparent substrate that is closer to the diffuser sheet among the pair of second transparent substrates.
    Type: Application
    Filed: March 29, 2017
    Publication date: February 1, 2018
    Inventors: Katsuhiro KIKUCHI, Kazuhiko TSUDA, Takao IMAOKU, Yoichi YASUI
  • Publication number: 20180006269
    Abstract: Provided is a display device 100 that includes a display panel having flexibility (an organic EL panel 1 as an example), and an optical member 2 having flexibility, arranged so as to be stacked on the display panel, wherein the display panel and the optical member 2 are stacked and bonded in a bent state, and thereafter stretched into a flat shape.
    Type: Application
    Filed: January 14, 2016
    Publication date: January 4, 2018
    Inventor: KAZUHIKO TSUDA
  • Publication number: 20170338442
    Abstract: An organic EL display device 1 includes a flexible plastic substrate 10, an organic EL element 4 on the plastic substrate 10, and to sealing film 2 provided on the plastic substrate 10 to cover the organic EL element 4. The sealing film 2 includes a first sealing layer 25 on a surface of the plastic substrate 10, a stress relief layer 26 on a surface of the first sealing layer 25, and a second sealing layer 27 on a surface of the stress relief layer 26. Compressive stress of the first sealing layer 25 is lower than compressive stress of the second sealing layer 27.
    Type: Application
    Filed: December 4, 2015
    Publication date: November 23, 2017
    Inventors: MAMORU ISHIDA, KAZUHIKO TSUDA, YOSHIFUMI OHTA
  • Patent number: 9817276
    Abstract: A liquid crystal display device wherein a first substrate and a second substrate are bonded together by a sealing material, a pixel electrode, a common electrode, a shift register, a clock line, and a power supply line are formed on the first substrate, a plurality of conductive particles are mixed into the sealing material, the plurality of conductive particles are maintained at a same potential as the common electrode, and the plurality of conductive particles are disposed at a position overlapping at least a part of the power supply line, when viewed from a normal direction of the first substrate.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: November 14, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Mayuko Sakamoto, Kazuhiko Tsuda
  • Publication number: 20170184888
    Abstract: A liquid crystal display device wherein a first substrate and a second substrate are bonded together by a sealing material, a pixel electrode, a common electrode, a shift register, a clock line, and a power supply line are formed on the first substrate, a plurality of conductive particles are mixed into the sealing material, the plurality of conductive particles are maintained at a same potential as the common electrode, and the plurality of conductive particles are disposed at a position overlapping at least a part of the power supply line, when viewed from a normal direction of the first substrate.
    Type: Application
    Filed: May 7, 2015
    Publication date: June 29, 2017
    Inventors: Mayuko SAKAMOTO, Kazuhiko TSUDA
  • Patent number: 9429686
    Abstract: A method for making a stamper which has an uneven surface pattern, in which unit structures are arranged in x and y directions at respective periods that are both shorter than the shortest wavelength of an incoming light ray, on the surface of a substrate and satisfies the following Inequality (1): ? ? ? x , y ? m ? ? i ? ? n < 1 ni + ni ยท sin ? ? ? ? ? i ma ? ? x ( 1 ) where ?min is the shortest wavelength of the incoming light ray, ?imax is the largest angle of incidence of the incoming light ray, ni is the refractive index of an incidence medium, ?x is the period of the uneven surface pattern in the x direction, and ?y is the period of the pattern in the y direction. As a result, diffraction of short-wave light components can be reduced in a broad wavelength range.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: August 30, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tokio Taguchi, Shun Ueki, Kozo Nakamura, Kazuhiko Tsuda
  • Patent number: 9372371
    Abstract: The present invention provides a liquid crystal display panel which is capable of providing a sufficiently high response speed and an excellent transmittance, and a liquid crystal display device. The liquid crystal display panel of the present invention includes a first substrate, a second substrate, and a liquid crystal layer disposed between the substrates. The first substrate and the second substrate have electrodes. The electrodes of the second substrate include a pair of comb-shaped electrodes and a slit-formed electrode.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 21, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takatomo Yoshioka, Iori Aoyama, Takao Imaoku, Yuichi Iyama, Kazuhiko Tsuda
  • Patent number: 9348178
    Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device each of which exhibits a sufficiently high response speed and an excellent transmittance. The liquid crystal display panel of the present invention includes a first substrate; a second substrate; and a liquid crystal layer disposed between the substrates, the first substrate and the second substrate each comprising an electrode, the electrode of the second substrate including a pair of comb-shaped electrodes and a planar electrode, the liquid crystal layer containing liquid crystal molecules which are inclined from an orthogonal direction to the main faces of the substrates between the pair of comb-shaped electrodes in a plan view of the main faces of the substrates when a voltage lower than a threshold voltage is applied.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: May 24, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Iori Aoyama, Takao Imaoku, Yuichi Iyama, Takatomo Yoshioka, Kazuhiko Tsuda
  • Publication number: 20160085122
    Abstract: A liquid crystal display device includes a plurality of pixels arranged in a matrix pattern, each pixel including a first electrode and a second electrode for generating a transverse electric field, wherein: in a first group of pixels arranged in a line along either a row direction or a column direction, pairs of pixels are arranged repeatedly, each pair of pixels including two adjacent pixels that are different from each other in terms of an electrode structure of at least one of the first electrode and the second electrode; and voltages of the same polarity are applied to the two adjacent pixels included in the pair of pixels, and voltages of different polarities from each other are applied to two pixel pairs adjacent to each other in the first group of pixels.
    Type: Application
    Filed: February 27, 2014
    Publication date: March 24, 2016
    Inventors: Yusuke NISHIHARA, Kazuhiko TSUDA, Tetsuo FUKAYA, Hideki FUJIMOTO, Yoshito HASHIMOTO, Masahiro SHIMIZU
  • Patent number: 9252282
    Abstract: The present invention provides a liquid crystal display device that can achieve a sufficiently-high-speed response and has a sufficiently excellent transmittance and a thin film transistor array substrate preferably used in the liquid crystal display device. The thin film transistor array substrate according to the present invention is a thin film transistor array substrate that includes, as electrodes, one pair of comb electrodes and a sheet electrode, and at least one electrode selected from the group consisting of the pair of comb electrodes and the sheet electrode being electrically connected along a pixel line.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 2, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi Iyama, Takao Imaoku, Iori Aoyama, Takatomo Yoshioka, Kazuhiko Tsuda
  • Patent number: 9165948
    Abstract: The present invention provides a thin film transistor array substrate and a liquid crystal display device including the thin film transistor array substrate that are preferably applicable to a liquid crystal display device including the three-layered electrode structure that enables high response speed and high transmittance, and can have a high aperture ratio.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: October 20, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuichi Iyama, Takatomo Yoshioka, Kazuhiko Tsuda