Patents by Inventor Takako Nakai

Takako Nakai 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: 8455062
    Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a side chain containing a fluorine atom, the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer films (6) and (7) each being made of the polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer fil
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: June 4, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takako Nakai, Masanobu Mizusaki, Youhei Nakanishi
  • Patent number: 8411238
    Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a functional group represented by at least one of General Formulae (1) through (5), the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (6) through (8), the polymer films (6) and (7) each being (i) made of the polymerizable monomer represented by at least one of Ge
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: April 2, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takako Nakai, Masanobu Mizusaki, Youhei Nakanishi
  • Publication number: 20120113370
    Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a side chain containing a fluorine atom, the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer films (6) and (7) each being made of the polymerizable monomer represented by at least one of General Formulae (1) through (3), the polymer fil
    Type: Application
    Filed: March 24, 2010
    Publication date: May 10, 2012
    Inventors: Takako Nakai, Masanobu Mizusaki, Youhei Nakanishi
  • Publication number: 20120099064
    Abstract: To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a functional group represented by at least one of General Formulae (1) through (5), the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (6) through (8), the polymer films (6) and (7) each being (i) made of the polymerizable monomer represented by at least one of Ge
    Type: Application
    Filed: March 24, 2010
    Publication date: April 26, 2012
    Inventors: Takako Nakai, Masanobu Mizusaki, Youhei Nakanishi
  • Publication number: 20090267880
    Abstract: A pixel has a first liquid crystal domain. In the first liquid crystal domain, first and second pretilt directions of liquid crystal molecules, defined by first and second alignment films, respectively, intersect with each other at substantially right angles. Also, in the first liquid crystal domain, when a signal voltage is applied to the liquid crystal layer to display the highest gray scale, liquid crystal molecules, located around the center of a plane of the liquid crystal layer and around the middle of the thickness of the liquid crystal layer, are tilted in a first direction that substantially equally divides the first and second pretilt directions into two. A driver applies a signal voltage to the liquid crystal layer of the pixel every vertical scanning period. At least while display gray scales are changing from the lowest gray scale into the highest one, the driver applies a voltage that is at least 0.
    Type: Application
    Filed: September 25, 2006
    Publication date: October 29, 2009
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshito Hashimoto, Masumi Kubo, Takako Nakai