Patents by Inventor Hyo-Sung Hong

Hyo-Sung Hong 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: 10234717
    Abstract: A method of attaching a polarizer includes preparing a first stage on which a display panel is disposed and a second stage on which a first polarizer is disposed, measuring a shape of a curl of the first polarizer; determining an attachment direction of the first polarizer with respect to the display panel based on the measured curl shape of the first polarizer and attaching the first polarizer to a first surface of the display panel by rotating at least one of the first stage and the second stage based on the determined attachment direction.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gwan Young Na, Sang Jae Kim, Jung Hun Lee, Hyo Sung Hong
  • Patent number: 10216040
    Abstract: A cholesteric liquid crystal reflective polarizing plate includes a cholesteric liquid crystal layer and a ?/4 compensation layer disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer includes a first left-handed circularly polarizing portion which extends in a first direction that include a left-handed cholesteric liquid crystal material, and a first right-handed circularly polarizing portion which extends in the first direction adjacent to first left-handed circularly polarizing portion and that includes a right-handed cholesteric liquid crystal material. The ?/4 compensation layer includes a first ?/4 compensation pattern which extends in the first direction and overlapping the first left-handed circularly polarizing portion, and a second ?/4 compensation pattern which extends in the first direction adjacent to the first ?/4 compensation pattern and overlaps the first right-handed circularly polarizing portion.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: February 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Hye Kim, Kwang Hyun Kim, Sang Jae Kim, Teck Soo Kim, Gwan Young Na, Hyoung Joo Lee, Seon Ah Cho, Hyo Sung Hong
  • Patent number: 10025140
    Abstract: Disclosed is a liquid crystal display, including: a first substrate and a second substrate, which face each other; a color filter disposed on the first substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizing plate disposed outside the first substrate; a first compensation film disposed outside the first polarizing plate; a second compensation film disposed outside the second substrate; and a second polarizing plate disposed outside the second compensation film, in which the second compensation film includes a biaxial film, and the first substrate and the second substrate include a poly-amide (PA) having an optical characteristic of a negative C-plate.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 17, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Hoon Kim, Sang-Gu Lee, Seung Hee Lee, Hyo Sung Hong, Dae Won Kim
  • Publication number: 20170212383
    Abstract: A method of attaching a polarizer includes preparing a first stage on which a display panel is disposed and a second stage on which a first polarizer is disposed, measuring a shape of a curl of the first polarizer; determining an attachment direction of the first polarizer with respect to the display panel based on the measured curl shape of the first polarizer and attaching the first polarizer to a first surface of the display panel by rotating at least one of the first stage and the second stage based on the determined attachment direction.
    Type: Application
    Filed: August 1, 2016
    Publication date: July 27, 2017
    Inventors: Gwan Young NA, Sang Jae KIM, Jung Hun LEE, Hyo Sung HONG
  • Publication number: 20160299371
    Abstract: Disclosed is a liquid crystal display, including: a first substrate and a second substrate, which face each other; a color filter disposed on the first substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizing plate disposed outside the first substrate; a first compensation film disposed outside the first polarizing plate; a second compensation film disposed outside the second substrate; and a second polarizing plate disposed outside the second compensation film, in which the second compensation film includes a biaxial film, and the first substrate and the second substrate include a poly-amide (PA) having an optical characteristic of a negative C-plate.
    Type: Application
    Filed: September 28, 2015
    Publication date: October 13, 2016
    Inventors: Ji-Hoon KIM, Sang-Gu LEE, Seung Hee LEE, Hyo Sung HONG, Dae Won KIM
  • Patent number: 9436034
    Abstract: A display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer and a viewing angle control layer. The second substrate faces the first substrate. A liquid crystal layer is disposed between the first substrate and the second substrate. A first polarizer is disposed on a lower surface of the first substrate and includes a first polarizing layer and a second polarizing layer stacked on each other. A second polarizer is disposed on an upper surface of the second substrate. A viewing angle control layer is disposed on the first polarizer and is configured to control a viewing angle of a column direction of the display panel.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Jae Kim, Boo-Kan Ki, Ji-Hye Kim, Hee-Wook Do, Jae-Won Park, Duck-Jong Suh, Jung-Hun Lee, Hyoung-Joo Lee, Seon-Ah Cho, Hyo-Sung Hong
  • Publication number: 20160223730
    Abstract: A cholesteric liquid crystal reflective polarizing plate includes a cholesteric liquid crystal layer and a ?/4 compensation layer disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer includes a first left-handed circularly polarizing portion which extends in a first direction that include a left-handed cholesteric liquid crystal material, and a first right-handed circularly polarizing portion which extends in the first direction adjacent to first left-handed circularly polarizing portion and that includes a right-handed cholesteric liquid crystal material. The ?/4 compensation layer includes a first ?/4 compensation pattern which extends in the first direction and overlapping the first left-handed circularly polarizing portion, and a second ?/4 compensation pattern which extends in the first direction adjacent to the first ?/4 compensation pattern and overlaps the first right-handed circularly polarizing portion.
    Type: Application
    Filed: May 29, 2015
    Publication date: August 4, 2016
    Inventors: JI HYE KIM, Kwang Hyun Kim, Sang Jae Kim, Teck Soo Kim, Gwan Young Na, Hyoung Joo Lee, Seon Ah Cho, Hyo Sung Hong
  • Publication number: 20160161786
    Abstract: Provided is a liquid crystal display panel including a thin-film transistor (TFT) array substrate and a first phase difference film. A liquid crystal layer is disposed between the TFT array substrate and the first phase difference film. A second phase difference film is disposed on the first phase difference film. A phase retardation value of the first phase difference film in a thickness direction is in a range of from about 100 nm to about 300 nm.
    Type: Application
    Filed: June 26, 2015
    Publication date: June 9, 2016
    Inventors: Hyo Sung HONG, Ji Hoon Kim, Teck Soo Kim, Kwang Hyun Kim, Sang Jae Kim, Ji Hye Kim, Gwan Young Na, Hyoung Joo Lee, Seon Ah Cho
  • Patent number: 9195096
    Abstract: A liquid crystal display apparatus includes a first substrate, a second substrate disposed opposite to the first substrate, a liquid crystal layer and a phase difference compensation film disposed on the first substrate, where the phase difference compensation film includes a fluorine resin.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 24, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Gu Lee, Seung-Beom Park, Na-Young Shin, Jung-Hun Lee, Kyung-Hwan Jeon, Hyo-Sung Hong
  • Publication number: 20150070638
    Abstract: A liquid crystal display apparatus includes a first substrate, a second substrate disposed opposite to the first substrate, a liquid crystal layer and a phase difference compensation film disposed on the first substrate, where the phase difference compensation film includes a fluorine resin.
    Type: Application
    Filed: March 7, 2014
    Publication date: March 12, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sang-Gu LEE, Seung-Beom PARK, Na-Young SHIN, Jung-Hun LEE, Kyung-Hwan JEON, Hyo-Sung HONG
  • Publication number: 20140146273
    Abstract: A display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer and a viewing angle control layer. The second substrate faces the first substrate. A liquid crystal layer is disposed between the first substrate and the second substrate. A first polarizer is disposed on a lower surface of the first substrate and includes a first polarizing layer and a second polarizing layer stacked on each other. A second polarizer is disposed on an upper surface of the second substrate. A viewing angle control layer is disposed on the first polarizer and is configured to control a viewing angle of a column direction of the display panel.
    Type: Application
    Filed: September 4, 2013
    Publication date: May 29, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: SANG-JAE KIM, Boo-Kan Ki, Ji-Hye Kim, Hee-Wook Do, Jae-Won Park, Duck-Jong Suh, Jung-Hun Lee, Hyoung-Joo Lee, Seon-Ah Cho, Hyo-Sung Hong