Patents by Inventor Naruhiro MATSUMOTO

Naruhiro MATSUMOTO 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).

  • Liquid crystal display device
    Patent number: 8681293
    Abstract: Provided is a liquid crystal display device in which uneven brightness in a side-light type backlight unit is reduced, the uneven brightness being generated through reflection of light from a light source at an interface of an engaging cutout portion for preventing a light guide plate from shifting. A light guide plate (60) includes a cutout portion (82) through which a light guide plate support pin (80) provided upright to a lower frame fitting is inserted, at a lower side adjacent to a left side at which a light bar (64) is arranged. Further, at the lower side, a cutout portion (84) having a shallower recess than that of the cutout portion (82) and positioned in front of the cutout portion (82) when viewed from the light bar (64) is provided.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: March 25, 2014
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hiroshi Obata, Makoto Fujimoto, Shunsuke Morishita, Naruhiro Matsumoto
  • LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20130083270
    Abstract: Provided is a liquid crystal display device in which uneven brightness in a side-light type backlight unit is reduced, the uneven brightness being generated through reflection of light from a light source at an interface of an engaging cutout portion for preventing a light guide plate from shifting. A light guide plate (60) includes a cutout portion (82) through which a light guide plate support pin (80) provided upright to a lower frame fitting is inserted, at a lower side adjacent to a left side at which a light bar (64) is arranged. Further, at the lower side, a cutout portion (84) having a shallower recess than that of the cutout portion (82) and positioned in front of the cutout portion (82) when viewed from the light bar (64) is provided.
    Type: Application
    Filed: September 12, 2012
    Publication date: April 4, 2013
    Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Hiroshi OBATA, Makoto FUJIMOTO, Shunsuke MORISHITA, Naruhiro MATSUMOTO