Patents by Inventor Yoichi Yasui

Yoichi Yasui 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: 10989955
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: April 27, 2021
    Assignees: Panasonic Liquid Crystal Display Co., Ltd., Pasona Knowledge Partner Inc.
    Inventors: Yoichi Yasui, Takenori Yaguchi, Takaaki Kitada, Kazuhiko Tsuda, Takashi Kato, Hidenori Kikuchi, Naoki Terasawa, Katsuji Tanaka
  • Patent number: 10845644
    Abstract: A backlight for a display device and a display device including the backlight are disclosed. The backlight includes a light guide plate; a light emitting diode substrate; a frame member; and a plurality of adhesive materials spaced apart from each other. The light emitting diode substrate includes a substrate; and a plurality of light emitting diodes fixed to the substrate. The plurality of light emitting diodes are oriented to face a side surface of the light guide plate. A frame member is disposed facing a surface of the substrate that is opposite the plurality of light emitting diodes. In a side sectional view, the plurality of adhesive materials is spaced apart from each other along a length direction of the frame member. The length direction corresponds to a major dimension of the frame member.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: November 24, 2020
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Yoichi Yasui
  • Publication number: 20200257165
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Yoichi YASUI, Takenori YAGUCHI, Takaaki KITADA, Kazuhiko TSUDA, Takashi KATO, Hidenori KIKUCHI, Naoki TERASAWA, Katsuji TANAKA
  • Patent number: 10670912
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: June 2, 2020
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yoichi Yasui, Takenori Yaguchi, Takaaki Kitada, Kazuhiko Tsuda, Takashi Kato, Hidenori Kikuchi, Naoki Terasawa, Katsuji Tanaka
  • Patent number: 10598983
    Abstract: A liquid crystal display device includes: a first polarizing plate, a first liquid crystal cell, a second polarizing plate, a third polarizing plate, a second liquid crystal cell, and a fourth polarizing plate, which are arranged from a front side to a back side in this order. P1, P2, P3, P4 represent degrees of polarization of the first polarizing plate, the second polarizing plate, the third polarizing plate, and the fourth polarizing plate, respectively, one of a relational expression of P1>P2, P3, P4, a relational expressions of P4>P1, P2, P3, and a relational expression of P1, P4>P2, P3 is satisfied.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: March 24, 2020
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Yoichi Yasui, Katsuhiro Kikuchi, Kazuhiko Tsuda
  • Publication number: 20190293999
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Application
    Filed: June 10, 2019
    Publication date: September 26, 2019
    Inventors: Yoichi YASUI, Takenori YAGUCHI, Takaaki KITADA, Kazuhiko TSUDA, Takashi KATO, Hidenori KIKUCHI, Naoki TERASAWA, Katsuji TANAKA
  • Patent number: 10401693
    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: Grant
    Filed: March 29, 2017
    Date of Patent: September 3, 2019
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Katsuhiro Kikuchi, Kazuhiko Tsuda, Takao Imaoku, Yoichi Yasui
  • Publication number: 20190258101
    Abstract: A liquid crystal display device includes: a first liquid crystal cell; a second liquid crystal cell disposed in a backlight side; and a first optical sheet and a second optical sheet both having an identical layer structure. The first optical sheet is disposed on a front surface side of the first liquid crystal cell and the second optical sheet is disposed on a back surface side of the second liquid crystal cell, or vice versa.
    Type: Application
    Filed: May 2, 2019
    Publication date: August 22, 2019
    Inventors: Yoichi YASUI, Takao IMAOKU, Katsuhiro KIKUCHI, Kazuhiko TSUDA
  • Patent number: 10359665
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 23, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yoichi Yasui, Takenori Yaguchi, Takaaki Kitada, Kazuhiko Tsuda, Takashi Kato, Hidenori Kikuchi, Naoki Terasawa, Katsuji Tanaka
  • Publication number: 20190155100
    Abstract: A liquid crystal display device includes: a first display panel including a first liquid crystal cell; and a second display panel including a second liquid crystal cell and is opposed to the first display panel. An irregularity structure having a predetermined external haze value is provided at an interface of an air layer existing between the first display panel and the second display panel.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Inventors: Yoichi YASUI, Katsuhiro KIKUCHI
  • Publication number: 20190137817
    Abstract: A liquid crystal display device includes: a first polarizing plate, a first liquid crystal cell, a second polarizing plate, a third polarizing plate, a second liquid crystal cell, and a fourth polarizing plate, which are arranged from a front side to a back side in this order. P1, P2, P3, P4 represent degrees of polarization of the first polarizing plate, the second polarizing plate, the third polarizing plate, and the fourth polarizing plate, respectively, one of a relational expression of P1>P2, P3, P4, a relational expressions of P4>P1, P2, P3, and a relational expression of P1, P4>P2, P3 is satisfied.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 9, 2019
    Inventors: Yoichi YASUI, Katsuhiro KIKUCHI, Kazuhiko TSUDA
  • Publication number: 20180284553
    Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Inventors: Yoichi YASUI, Takenori YAGUCHI, Takaaki KITADA, Kazuhiko TSUDA, Takashi KATO, Hidenori KIKUCHI, Naoki TERASAWA, Katsuji TANAKA
  • 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: 20120050640
    Abstract: A liquid crystal display device (1) comprises a liquid crystal panel (2) and a support frame (4) encompassing the edge of the liquid crystal panel (2). The lower side portion (41) of the support frame (4) includes a support portion (41b) on which the lower edge (2a) of the liquid crystal panel (2) is placed. The lower edge (2a) of the liquid crystal panel (2) is adhered on the upper surface of the support portion (41b). With the above, occurrence of irregular color due to distortion of the liquid crystal panel is able to be reduced.
    Type: Application
    Filed: August 22, 2011
    Publication date: March 1, 2012
    Applicant: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yoichi YASUI, Takenori YAGUCHI, Masato YANAI
  • Publication number: 20100202119
    Abstract: A flexible wiring board 1 includes an insulating member 12 having a conductor 11 formed therein, a reinforcing board 13 for reinforcing the insulating member 12 in the vicinity of the connection terminal 11a of the flexible wiring board 1, and a lock member 14 to be locked to a board 3 having a connector 2, with the board 3 having an opening 31 for receiving the lock member 14 fit therein in a state where the connection terminal 11a is connected and secured to the connector 2.
    Type: Application
    Filed: June 2, 2008
    Publication date: August 12, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuro Nagami, Shinji Serizawa, Yoichi Yasui