Patents by Inventor Sung Hoon Pieh

Sung Hoon Pieh 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: 10985338
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: April 20, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Hoon Pieh, Chang Wook Han, Hong Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim
  • Publication number: 20200411787
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Application
    Filed: September 9, 2020
    Publication date: December 31, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Sung Hoon PIEH, Chang Wook HAN, Hong Seok CHOI, Ki-Woog SONG, So Yeon AHN, Seung Hyun KIM
  • Patent number: 10818862
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: October 27, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Hoon Pieh, Chang Wook Han, Hong Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim
  • Publication number: 20200168828
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Sung Hoon PIEH, Chang Wook HAN, Hong Seok CHOI, Ki-Woog SONG, So Yeon AHN, Seung Hyun KIM
  • Patent number: 10586939
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: March 10, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Hoon Pieh, Chang Wook Han, Hong Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim
  • Publication number: 20190288228
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 19, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Sung Hoon PIEH, Chang Wook HAN, Hong Seok CHOI, Ki-Woog SONG, So Yeon AHN, Seung Hyun KIM
  • Patent number: 10355231
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 16, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Hoon Pieh, Chang Wook Han, Hong Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim
  • Patent number: 10347858
    Abstract: A white organic light emitting device includes a first emission part between a first electrode and a second electrode, and configured to include a first emission layer, the first electrode being a reflective electrode, a second emission part on the first emission part, and configured to include a second emission layer, and a third emission part on the second emission part, and configured to include a third emission layer.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: July 9, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ki-Woog Song, Sung Hoon Pieh, Youn Seok Kam, Tae Shick Kim, Se Ung Kim, Hyung June Kim
  • Publication number: 20190097153
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 28, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Sung Hoon PIEH, Chang Wook HAN, Hong Seok CHOI, Ki-Woog SONG, So Yeon AHN, Seung Hyun KIM
  • Patent number: 10177330
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: January 8, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Hoon Pieh, Chang Wook Han, Hong Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim
  • Publication number: 20180205029
    Abstract: A white organic light emitting device includes a first emission part between a first electrode and a second electrode, and configured to include a first emission layer, the first electrode being a reflective electrode, a second emission part on the first emission part, and configured to include a second emission layer, and a third emission part on the second emission part, and configured to include a third emission layer.
    Type: Application
    Filed: March 15, 2018
    Publication date: July 19, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki-Woog SONG, Sung Hoon PIEH, Youn Seok KAM, Tae Shick KIM, Se Ung KIM, Hyung June KIM
  • Patent number: 9966551
    Abstract: Discussed is a white organic light emitting device for enhancing emission efficiency and panel efficiency. The white organic light emitting device can include a first emission part between a first electrode and a second electrode and configured to include a first emission layer (EML), a second emission part on the first emission part and configured to include a second EML, and a third emission part on the second emission part and configured to include a third EML. The first to third emission parts have an emission position of emitting layers (EPEL) structure in which the first to third emission parts have a maximum emission range in respective emission areas of the first to third EMLs.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 8, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ki-Woog Song, Sung Hoon Pieh, Youn Seok Kam, Tae Shick Kim, Se Ung Kim, Hyung June Kim
  • Patent number: 9859519
    Abstract: An organic light emitting display device comprises first and second electrodes facing each other on a substrate; and three emission portions arranged between the first electrode and the second electrode, wherein at least one among the three emission portions includes two emitting layers, and the first, second and third emission portions being collectively configured as a TOL-FESE (Thickness of Organic Layers between the First Electrode and the Second Electrode) structure in which thicknesses of organic layers between the first electrode and the second electrode are different from one another, each organic layer having a specified thickness that provides the organic light emitting display device having the TOL-FESE structure with improved red efficiency or blue efficiency and minimized color shift rate with respect to a viewing angle, when compared to an organic light emitting display device that lacks the TOL-FESE structure.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: January 2, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Seunghyun Kim, Hongseok Choi, Sung Hoon Pieh, Tae Seok Lim
  • Publication number: 20170263877
    Abstract: Discussed is a white organic light emitting device for enhancing emission efficiency and panel efficiency. The white organic light emitting device can include a first emission part between a first electrode and a second electrode and configured to include a first emission layer (EML), a second emission part on the first emission part and configured to include a second EML, and a third emission part on the second emission part and configured to include a third EML. The first to third emission parts have an emission position of emitting layers (EPEL) structure in which the first to third emission parts have a maximum emission range in respective emission areas of the first to third EMLs.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 14, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Ki-Woog SONG, Sung Hoon PIEH, Youn Seok KAM, Tae Shick KIM, Se Ung KIM, Hyung June KIM
  • Publication number: 20170237031
    Abstract: An organic light emitting display device comprises first and second electrodes facing each other on a substrate; and three emission portions arranged between the first electrode and the second electrode, wherein at least one among the three emission portions includes two emitting layers, and the first, second and third emission portions being collectively configured as a TOL-FESE (Thickness of Organic Layers between the First Electrode and the Second Electrode) structure in which thicknesses of organic layers between the first electrode and the second electrode are different from one another, each organic layer having a specified thickness that provides the organic light emitting display device having the TOL-FESE structure with improved red efficiency or blue efficiency and minimized color shift rate with respect to a viewing angle, when compared to an organic light emitting display device that lacks the TOL-FESE structure.
    Type: Application
    Filed: April 28, 2017
    Publication date: August 17, 2017
    Inventors: Seunghyun KIM, Hongseok CHOI, Sung Hoon PIEH, Tae Seok LIM
  • Patent number: 9722199
    Abstract: An organic light emitting display device comprises first and second electrodes facing each other on a substrate; and three emission portions arranged between the first electrode and the second electrode, wherein at least one among the three emission portions includes two emitting layers, and the first, second and third emission portions being collectively configured as a TOL-FESE (Thickness of Organic Layers between the First Electrode and the Second Electrode) structure in which thicknesses of organic layers between the first electrode and the second electrode are different from one another, each organic layer having a specified thickness that provides the organic light emitting display device having the TOL-FESE structure with improved red efficiency or blue efficiency and minimized color shift rate with respect to a viewing angle, when compared to an organic light emitting display device that lacks the TOL-FESE structure.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: August 1, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Seunghyun Kim, Hongseok Choi, Sung Hoon Pieh, Tae Seok Lim
  • Patent number: 9685622
    Abstract: Discussed is a white organic light emitting device for enhancing emission efficiency and panel efficiency. The white organic light emitting device can include a first emission part between a first electrode and a second electrode and configured to include a first emission layer (EML), a second emission part on the first emission part and configured to include a second EML, and a third emission part on the second emission part and configured to include a third EML. The first to third emission parts have an emission position of emitting layers (EPEL) structure in which the first to third emission parts have a maximum emission range in respective emission areas of the first to third EMLs.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: June 20, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Ki-Woog Song, Sung Hoon Pieh, Youn Seok Kam, Tae Shick Kim, Se Ung Kim, Hyung June Kim
  • Patent number: 9666824
    Abstract: An organic light emitting display device comprises first and second electrodes facing each other on a substrate; and three emission portions arranged between the first electrode and the second electrode, wherein at least one among the three emission portions includes two emitting layers, and the first, second and third emission portions being collectively configured as a TOL-FESE (Thickness of Organic Layers between the First Electrode and the Second Electrode) structure in which thicknesses of organic layers between the first electrode and the second electrode are different from one another, each organic layer having a specified thickness that provides the organic light emitting display device having the TOL-FESE structure with improved red efficiency or blue efficiency and minimized color shift rate with respect to a viewing angle, when compared to an organic light emitting display device that lacks the TOL-FESE structure.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: May 30, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Seunghyun Kim, Hongseok Choi, Sung Hoon Pieh, Tae Seok Lim
  • Publication number: 20160181562
    Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
    Type: Application
    Filed: October 2, 2015
    Publication date: June 23, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Sung Hoon PIEH, Chang Wook HAN, Hong Seok CHOI, Ki-Woog SONG, So Yeon AHN, Seung Hyun KIM
  • Publication number: 20160155976
    Abstract: An organic light emitting display device comprises first and second electrodes facing each other on a substrate; and three emission portions arranged between the first electrode and the second electrode, wherein at least one among the three emission portions includes two emitting layers, and the first, second and third emission portions being collectively configured as a TOL-FESE (Thickness of Organic Layers between the First Electrode and the Second Electrode) structure in which thicknesses of organic layers between the first electrode and the second electrode are different from one another, each organic layer having a specified thickness that provides the organic light emitting display device having the TOL-FESE structure with improved red efficiency or blue efficiency and minimized color shift rate with respect to a viewing angle, when compared to an organic light emitting display device that lacks the TOL-FESE structure.
    Type: Application
    Filed: September 1, 2015
    Publication date: June 2, 2016
    Inventors: Seunghyun KIM, Hongseok CHOI, Sung Hoon PIEH, Tae Seok LIM