Patents by Inventor Hyun Tae Byun

Hyun Tae Byun 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: 10431773
    Abstract: Provided is an organic light emitting display device. The organic light emitting display device includes a substrate, an organic light emitting element on the substrate, a first encapsulation layer on the substrate and the organic light emitting element to seal the organic light emitting element, a second encapsulation layer on the first encapsulation layer, a particle cover layer on the second encapsulation layer corresponding to at least an organic light emitting element area, and a third encapsulation layer on the second encapsulation layer and the particle cover layer. The first encapsulation layer and the second encapsulation layer are different from each other in surface energy. When the particle cover layer is coated, the second encapsulation layer may have a higher spreadability. Thus, it is possible to improve scan mura or defect.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: October 1, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Eun Ah Song, Hyun Tae Byun, Jung Gi Kim, Kwang Nam Cho
  • Publication number: 20180076417
    Abstract: Provided is an organic light emitting display device. The organic light emitting display device includes a substrate, an organic light emitting element on the substrate, a first encapsulation layer on the substrate and the organic light emitting element to seal the organic light emitting element, a second encapsulation layer on the first encapsulation layer, a particle cover layer on the second encapsulation layer corresponding to at least an organic light emitting element area, and a third encapsulation layer on the second encapsulation layer and the particle cover layer. The first encapsulation layer and the second encapsulation layer are different from each other in surface energy. When the particle cover layer is coated, the second encapsulation layer may have a higher spreadability. Thus, it is possible to improve scan mura or defect.
    Type: Application
    Filed: August 4, 2017
    Publication date: March 15, 2018
    Inventors: Eun Ah SONG, Hyun Tae BYUN, Jung Gi KIM, Kwang Nam CHO
  • Patent number: 9508943
    Abstract: An organic light emitting diode display device is disclosed. The organic light emitting diode display device includes an organic light emitting diode array formed on a flexible substrate, a cover film formed to cover the organic light emitting diode array, and a bottom film attached to a lower surface of the flexible substrate. Reliability of the organic light emitting diode display device may be improved by forming a cover film attached to the organic light emitting diode array and a bottom film attached to the lower surface of the flexible substrate on which the organic light emitting diode array is formed using the same material, and forming a moisture absorbent on the bottom film.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: November 29, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae-Young Lee, Hee-Chul Lim, Hyun-Tae Byun
  • Patent number: 9203051
    Abstract: Disclosed is an organic light emitting display (OLED) apparatus that includes a substrate; an organic light emitting element on the substrate, the organic light emitting element including a first electrode, an organic light emitting layer and a second electrode; a viscoelastic layer on the organic light emitting element, wherein an elastic portion of the viscoelastic layer is about 30% or more, the elastic portion being defined by <Equation 1>: Elastic portion (Ep) (%)=(?/?0)×100, wherein ?0 is an initial stress generated when a strain of about 50% is applied to the viscoelastic layer and ? is a final stress measured after the strain is continuously applied thereto for about 180 seconds, with the initial stress ?0 and the final stress ? being measured at about 80° C. through a relaxation modulus test.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: December 1, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyun Tae Byun, Eun Ah Song, Hee Chul Lim
  • Publication number: 20150144909
    Abstract: Disclosed is an organic light emitting display (OLED) apparatus that includes a substrate; an organic light emitting element on the substrate, the organic light emitting element including a first electrode, an organic light emitting layer and a second electrode; a viscoelastic layer on the organic light emitting element, wherein an elastic portion of the viscoelastic layer is about 30% or more, the elastic portion being defined by <Equation 1>: Elastic portion (Ep) (%)=(?/?0)×100, wherein ?0 is an initial stress generated when a strain of about 50% is applied to the viscoelastic layer and ? is a final stress measured after the strain is continuously applied thereto for about 180 seconds, with the initial stress ?0 and the final stress ? being measured at about 80° C. through a relaxation modulus test.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 28, 2015
    Inventors: Hyun Tae BYUN, Eun Ah SONG, Hee Chul LIM
  • Publication number: 20140166995
    Abstract: An organic light emitting diode display device is disclosed. The organic light emitting diode display device includes an organic light emitting diode array formed on a flexible substrate, a cover film formed to cover the organic light emitting diode array, and a bottom film attached to a lower surface of the flexible substrate. Reliability of the organic light emitting diode display device may be improved by forming a cover film attached to the organic light emitting diode array and a bottom film attached to the lower surface of the flexible substrate on which the organic light emitting diode array is formed using the same material, and forming a moisture absorbent on the bottom film.
    Type: Application
    Filed: July 1, 2013
    Publication date: June 19, 2014
    Inventors: Jae-Young LEE, Hee-Chul LIM, Hyun-Tae BYUN
  • Patent number: 8742408
    Abstract: An OLED device is discussed which includes: a drive thin film transistor formed on a substrate; an organic light emitting diode configured with first electrode, a light emission layer and a second electrode which are sequentially formed on the substrate provided with the drive thin film transistor; a barrier film disposed on the substrate with the organic light emitting element and configure to include a retardation film, an optically isotropic film and a thin layer interposed between the retardation film and the optically isotropic film; and a polarizing plate disposed on the barrier film and configured to prevent reflection of external light.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: June 3, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Young Lee, Hee Chul Lim, Hyun Tae Byun, Byoung Chul Kim