Patents by Inventor Sang Eok Jang

Sang Eok Jang 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).

  • Publication number: 20210257419
    Abstract: An organic light-emitting display device includes: a display panel having a first display area and a second display area, the first and second display areas having different light transmittances from each other in a unit area, wherein the display panel includes a plurality of organic light-emitting diodes disposed in the first display area and the second display area, wherein a first organic light-emitting diode disposed in the first display area and a second organic light-emitting diode disposed in the second display area each include at least one light emitter, and the number of the light emitter included in the second organic light-emitting diode is greater than the number of the light emitter included in the first organic light-emitting diode.
    Type: Application
    Filed: January 29, 2021
    Publication date: August 19, 2021
    Inventors: Sang Eok Jang, Seung Chan Lee, Sun Ho Kim, Dong Hwan Shim, Sun Hee Lee, Gun Hee Kim, Tae Hoon Yang
  • Patent number: 9337448
    Abstract: An organic light emitting display includes an array substrate, a plurality of light emitting devices disposed over the array substrate, and a plurality of color filters having different colors. The plurality of light emitting devices include a first light emitting device configured to emit light having a first color and a second light emitting device configured to emit light having a second color different from the first color, and the plurality of color filters include first and second color filters disposed over the first light emitting device and the second light emitting device, respectively.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: May 10, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Soo Lee, Se Il Kim, Eun Kyoung Nam, Sang Eok Jang
  • Patent number: 9165983
    Abstract: An organic light emitting diode display includes a substrate including a plurality of subpixel areas, a plurality of pixel electrodes positioned corresponding to each of the plurality of subpixel areas on the substrate, a white emission layer formed on the plurality of pixel electrodes; a common electrode covering the white emission layer, a plurality of capping layers positioned corresponding to each of the plurality of subpixel areas on the common electrode, and a color filter layer including a plurality of filter layers corresponding to each of the plurality of subpixel areas. At least two capping layers among the plurality of capping layers have any one of a refractive index and a thickness different from each other.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: October 20, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Eok Jang, Sung-Soo Lee, Eun-Kyoung Nam, Se-Il Kim
  • Patent number: 9142784
    Abstract: The present invention relates to a highly efficient carbazole-based compound and to an organic electroluminescence device including the same. According to the present invention, provided are a compound for an organic electroluminescence device and an organic electroluminescence device including the compound, in which a carbazole-based phosphine oxide compound, which is a compound intended for an organic electroluminescence device, is employed to overcome the problems of conventional compounds for organic electroluminescence devices, i.e. those of instable thermal stability and low efficiency, and particularly, the compound of the present invention exhibits superior efficiency in pure-blue phosphorescent devices.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: September 22, 2015
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Jun Yeob Lee, Soon Ok Jeon, Hyo Suk Son, Kyoung Soo Yook, Sang Eok Jang
  • Publication number: 20140312325
    Abstract: An organic light emitting diode display includes a substrate including a plurality of subpixel areas, a plurality of pixel electrodes positioned corresponding to each of the plurality of subpixel areas on the substrate, a white emission layer formed on the plurality of pixel electrodes; a common electrode covering the white emission layer, a plurality of capping layers positioned corresponding to each of the plurality of subpixel areas on the common electrode, and a color filter layer including a plurality of filter layers corresponding to each of the plurality of subpixel areas. At least two capping layers among the plurality of capping layers have any one of a refractive index and a thickness different from each other.
    Type: Application
    Filed: January 31, 2014
    Publication date: October 23, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Eok JANG, Sung-Soo LEE, Eun-Kyoung NAM, Se-Il KIM
  • Patent number: 8841659
    Abstract: An organic light-emitting display apparatus that has reduced resonance effect includes a thin film transistor (TFT) layer including a plurality of TFTs, first protective layer covering the TFT, a color filter disposed in at least a partial area of the region in the first protective layer, a first overcoat covering the color filter, a second protective layer covering the first overcoat, a second overcoat disposed on the second protective layer, and a pixel electrode disposed on top of the second overcoat and electrically coupled to the TFTs in the TFT layer.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: September 23, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-II Kim, Sung-Soo Lee, Eun-Kyoung Nam, Sang-Eok Jang
  • Publication number: 20140166997
    Abstract: An organic light-emitting display apparatus that has reduced resonance effect includes a thin film transistor (TFT) layer including a plurality of TFTs, first protective layer covering the TFT, a color filter disposed in at least a partial area of the region in the first protective layer, a first overcoat covering the color filter, a second protective layer covering the first overcoat, a second overcoat disposed on the second protective layer, and a pixel electrode disposed on top of the second overcoat and electrically coupled to the TFTs in the TFT layer.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 19, 2014
    Inventors: Se-Il Kim, Sung-Soo Lee, Eun-Kyoung Nam, Sang-Eok Jang
  • Publication number: 20140077185
    Abstract: An organic light emitting display includes an array substrate, a plurality of light emitting devices disposed over the array substrate, and a plurality of color filters having different colors. The plurality of light emitting devices include a first light emitting device configured to emit light having a first color and a second light emitting device configured to emit light having a second color different from the first color, and the plurality of color filters include first and second color filters disposed over the first light emitting device and the second light emitting device, respectively.
    Type: Application
    Filed: August 6, 2013
    Publication date: March 20, 2014
    Applicant: Samsung display Co., Ltd
    Inventors: Sung-Soo LEE, Se Il KIM, Eun Kyoung NAM, Sang Eok JANG
  • Publication number: 20130119367
    Abstract: The present invention relates to a highly efficient carbazole-based compound and to an organic electroluminescence device including the same. According to the present invention, provided are a compound for an organic electroluminescence device and an organic electroluminescence device including the compound, in which a carbazole-based phosphine oxide compound, which is a compound intended for an organic electroluminescence device, is employed to overcome the problems of conventional compounds for organic electroluminescence devices, i.e. those of instable thermal stability and low efficiency, and particularly, the compound of the present invention exhibits superior efficiency in pure-blue phosphorescent devices.
    Type: Application
    Filed: June 23, 2011
    Publication date: May 16, 2013
    Applicant: INDUSTRY ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY
    Inventors: Jun Yeob Lee, Soon Ok Jeon, Hyo Suk Son, Kyoung Soo Yook, Sang Eok Jang