Patents by Inventor Dong-Ha YOO

Dong-Ha YOO 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 with wide-viewing angle
    Patent number: 9298040
    Abstract: An LCD device includes a liquid crystal panel; a first polarizer attached to a first surface of the liquid crystal panel and including a first polarizing film, first and second optical compensation films disposed on one surface of the first polarizing film, and a phase retardation film, a protective film and a functional film disposed on another surface of the first polarizing film; and a second polarizer attached to a second surface of the liquid crystal panel and including a second polarizing film, an inner protective film disposed on one surface of the second polarizing film, and an outer protective film disposed on another surface of the second polarizing film, wherein the first polarizing film is disposed between the phase retardation film and the liquid crystal panel, and the phase retardation film has a retardation value of ?/4.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: March 29, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sang-Woong Choi, Jeong-Hoon Ko, Hyoun-Sung Son, Eun-Jung Kim, Dong-Ha Yoo
  • Liquid crystal display device with wide-viewing angle
    Patent number: 9268173
    Abstract: An LCD device includes a liquid crystal panel; a first polarizer attached to a first surface of the liquid crystal panel and including a first polarizing film, first and second optical compensation films disposed on one surface of the first polarizing film, and a phase retardation film, a protective film and a functional film disposed on another surface of the first polarizing film; and a second polarizer attached to a second surface of the liquid crystal panel and including a second polarizing film, an inner protective film disposed on one surface of the second polarizing film, and an outer protective film disposed on another surface of the second polarizing film, wherein the first polarizing film is disposed between the phase retardation film and the liquid crystal panel, and the phase retardation film has a retardation value of ?/4.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: February 23, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sang-Woong Choi, Jeong-Hoon Ko, Hyoun-Sung Son, Eun-Jung Kim, Dong-Ha Yoo
  • LIQUID CRYSTAL DISPLAY DEVICE WITH WIDE-VIEWING ANGLE
    Publication number: 20140192297
    Abstract: An LCD device includes a liquid crystal panel; a first polarizer attached to a first surface of the liquid crystal panel and including a first polarizing film, first and second optical compensation films disposed on one surface of the first polarizing film, and a phase retardation film, a protective film and a functional film disposed on another surface of the first polarizing film; and a second polarizer attached to a second surface of the liquid crystal panel and including a second polarizing film, an inner protective film disposed on one surface of the second polarizing film, and an outer protective film disposed on another surface of the second polarizing film, wherein the first polarizing film is disposed between the phase retardation film and the liquid crystal panel, and the phase retardation film has a retardation value of ?/4.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 10, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang-Woong CHOI, Jeong-Hoon KO, Hyoun-Sung SON, Eun-Jung KIM, Dong-Ha YOO