Patents by Inventor Joong Min Yoon

Joong Min Yoon 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: 9958723
    Abstract: Disclosed is a liquid crystal display (LCD) device which is capable of improving a user's visual perception characteristics by decreasing a reflectance difference of external light between an active area and a peripheral area, wherein the LCD device includes a first substrate having an active area and a peripheral area; a second substrate confronting the first substrate; a liquid crystal layer between the first and second substrates; a light shielding layer in the active area and the peripheral area of the first substrate; and first, second and third color filters respectively formed in individual pixels of the active area, wherein the first color filter is formed between the first substrate and the light shielding layer in the active area and the peripheral area.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: May 1, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ho Chun Lee, Joong Min Yoon, Seunghoon Ji
  • Publication number: 20140168584
    Abstract: Disclosed is a liquid crystal display (LCD) device which is capable of improving a user's visual perception characteristics by decreasing a reflectance difference of external light between an active area and a peripheral area, wherein the LCD device includes a first substrate having an active area and a peripheral area; a second substrate confronting the first substrate; a liquid crystal layer between the first and second substrates; a light shielding layer in the active area and the peripheral area of the first substrate; and first, second and third color filters respectively formed in individual pixels of the active area, wherein the first color filter is formed between the first substrate and the light shielding layer in the active area and the peripheral area.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 19, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ho Chun LEE, Joong Min YOON, Seunghoon JI
  • Patent number: 8405803
    Abstract: A liquid crystal display device includes a first substrate; first to fourth pixels arranged in a matrix pattern on the first substrate, the fourth pixel having an area smaller than each of the first and second pixels and larger than the third pixel; a second substrate facing the first substrate; first to fourth color filter patterns formed on the second substrate and respectively corresponding to the first to fourth pixels, wherein the first to fourth color filter patterns have green, blue, white and red colors, respectively; and a liquid crystal layer interposed between the first and second substrates.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: March 26, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Hoon Kim, Joong-Min Yoon
  • Patent number: 8395729
    Abstract: An LCD device is discussed, which comprises first and second substrates confronting each other; a liquid crystal layer between the first and second substrates; and red, green, blue, and fourth color filters on the first substrate; wherein the fourth color filter is formed of any color whose transparency is better than that of at least one of the red, green, and blue color filters, and wherein an effective area of the fourth color filter is smaller than that of at least one of the red, green, and blue color filters. The LCD device can display white color with good transparency by properly adjusting the effective areas of the four color filters, whereby there is no need to modulate light for display of the white color in a backlight unit, to thereby improve luminance of light emitted from the backlight unit.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: March 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Sang Hun Han, Joong Min Yoon, Young Hoon Kim, Ho Chun Lee, Seung Hoon Ji
  • Publication number: 20110149213
    Abstract: An LCD device is discussed, which comprises first and second substrates confronting each other; a liquid crystal layer between the first and second substrates; and red, green, blue, and fourth color filters on the first substrate; wherein the fourth color filter is formed of any color whose transparency is better than that of at least one of the red, green, and blue color filters, and wherein an effective area of the fourth color filter is smaller than that of at least one of the red, green, and blue color filters. The LCD device can display white color with good transparency by properly adjusting the effective areas of the four color filters, whereby there is no need to modulate light for display of the white color in a backlight unit, to thereby improve luminance of light emitted from the backlight unit.
    Type: Application
    Filed: August 9, 2010
    Publication date: June 23, 2011
    Inventors: Sang Hun HAN, Joong Min Yoon, Young Hoon Kim, Ho Chun Lee, Seung Hoon Ji
  • Publication number: 20100134728
    Abstract: A liquid crystal display device includes a first substrate; first to fourth pixels arranged in a matrix pattern on the first substrate, the fourth pixel having an area smaller than each of the first and second pixels and larger than the third pixel; a second substrate facing the first substrate; first to fourth color filter patterns formed on the second substrate and respectively corresponding to the first to fourth pixels, wherein the first to fourth color filter patterns have green, blue, white and red colors, respectively; and a liquid crystal layer interposed between the first and second substrates.
    Type: Application
    Filed: November 12, 2009
    Publication date: June 3, 2010
    Inventors: Young-Hoon Kim, Joong-Min Yoon