Patents by Inventor Sam Il Kho

Sam Il Kho 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).

  • Condensed cyclic compound and organic light-emitting device comprising the same
    Patent number: 11937502
    Abstract: A condensed cyclic compound and an organic light-emitting device including the condensed cyclic compound are provided. The condensed cyclic compound is represented by Formula 1. The A3 ring of Formula 1 is a group represented by Formula 2A or a group represented by Formula 2B. The organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, the organic layer including at least one of the condensed cyclic compound represented by Formula 1.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: March 19, 2024
    Assignees: Samsung Display Co., Ltd., Research & Business Foundation Sungkyunkwan University
    Inventors: Sung-Wook Kim, Myeong-Suk Kim, Hwan-Hee Cho, Sam-Il Kho, Seung-Soo Yoon, Changwoong Chu
  • Compound and organic light-emitting device including the same
    Patent number: 10741773
    Abstract: A compound, an organic light-emitting device, and a display apparatus, the compound being represented by Formula 1:
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: August 11, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Wook Kim, Myeong-Suk Kim, Jin-Soo Hwang, Sam-Il Kho, Hye-In Jeong
  • Amine-based compound and organic light-emitting device including the same
    Patent number: 10290820
    Abstract: An amine-based compound is represented by Formula 1. Where, in Formula 1, at least one of R1, R3, R8, and R10 is a group represented by Formula 2. Where, in Formula 2, a1 is selected from 0, 1, 2 and 3. The remaining substituents of Formulae 1 and 2 are as described herein. An organic light-emitting device (OLED) includes the amine-based compound represented by Formula 1.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 14, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mi-Eun Jun, Sang-Hyun Han, Young-Kook Kim, Seok-Hwan Hwang, Sam-Il Kho
  • INDENOPYRIDINE-BASED COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20190067587
    Abstract: Provided are an indenopyridine-based compound and an organic light-emitting device including the same.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Inventors: Soung-Wook KIM, Myeong-Suk KIM, Jae-Hong KIM, Sam-Il KHO, Seung-Soo YOON
  • Amine-based compound and organic light-emitting device including the same
    Patent number: 10193073
    Abstract: Provided are an amine-based compound and an organic light-emitting device (OLED) including the same.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: January 29, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo-Yon Kim, Sam-Il Kho, Young-Kook Kim, Jong-Woo Kim, Seok-Hwan Hwang
  • Condensed-cyclic compound and organic light emitting device including the same
    Patent number: 10186666
    Abstract: A condensed-cyclic compound and an organic light-emitting device, the compound being represented by Formula 1:
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 22, 2019
    Assignees: SAMSUNG DISPLAY CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Sung-Wook Kim, Myeong-Suk Kim, Hwan-Hee Cho, Sam-Il Kho, Seung-Soo Yoon
  • Condensed cyclic compound and organic light-emitting device including the same
    Patent number: 10170703
    Abstract: A condensed cyclic compound and an organic light-emitting device including the same, the condensed cyclic compound being represented by the following Formula 1:
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 1, 2019
    Assignees: SAMSUNG DISPLAY CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Sung-Wook Kim, Myeong-Suk Kim, Hwan-Hee Cho, Sam-Il Kho, Seung-Soo Yoon
  • Indenopyridine-based compound and organic light-emitting device including the same
    Patent number: 10134997
    Abstract: Provided are an indenopyridine-based compound and an organic light-emitting device including the same.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: November 20, 2018
    Assignees: Samsung Display Co., Ltd., Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Soung-Wook Kim, Myeong-Suk Kim, Jae-Hong Kim, Sam-Il Kho, Seung-Soo Yoon
  • Organic light-emitting device
    Patent number: 9871205
    Abstract: Provided is an organic light-emitting device with a blue emission layer. The blue emission layer is an emission layer that emits blue light by a fluorescent emission mechanism.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: January 16, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mi-Kyung Kim, Kwan-Hee Lee, Sam-Il Kho, Chang-Woong Chu
  • COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20170352820
    Abstract: A compound, an organic light-emitting device, and a display apparatus, the compound being represented by Formula 1:
    Type: Application
    Filed: June 2, 2017
    Publication date: December 7, 2017
    Inventors: Sung-Wook KIM, Myeong-Suk KIM, Jin-Soo HWANG, Sam-Il KHO, Hye-In JEONG
  • Organic light-emitting device
    Patent number: 9822133
    Abstract: Provided is an organic light-emitting device including a first electrode, a second electrode, an emission layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the emission layer, wherein the hole transport region includes an auxiliary layer, the auxiliary layer including at least one amine-based compound represented by Formula 1: where R11, R12, R13, R14, R15, R16, X11, L11, L12, L13, a11, a12, a13, b15, and b16 are as defined in the specification.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myeong-Suk Kim, Hye-In Jeong, Seok-Hwan Hwang, Sam-IL Kho, Ja-Hyun Im
  • Organic light-emitting device
    Patent number: 9825240
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the second electrode and the emission layer, wherein the hole transport region includes a first compound represented by Formula 1.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myeong-Suk Kim, Hye-In Jeong, Jin-Soo Hwang, Sam-Il Kho, Seung-Gak Yang, Ja-Hyun Im, Seok-Hwan Hwang
  • Amine-based compound and organic light-emitting diode including the same
    Patent number: 9768388
    Abstract: An amine-based compound is represented by Formula 1 below: wherein Z11 to Z24, R1 to R4 and Ar1 are as indicated in the specification. An organic light-emitting diode includes the amine-based compound.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Hyun Kim, Mi-Kyung Kim, Se-Hun Kim, Hwan-Hee Cho, Sam-Il Kho, Hyoung-Kun Kim, Chang-Woong Chu
  • Condensed cyclic compound and organic light-emitting device including the same
    Patent number: 9705090
    Abstract: An organic light-emitting device includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode and including at least one condensed cyclic compound represented by Formula 1: The organic light-emitting device including the condensed cyclic compound represented by Formula 1 may have low driving voltage, high efficiency, high brightness, and long lifespan.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: July 11, 2017
    Assignees: Samsung Display Co., Ltd., Pusan National University Industry-University Cooperation Foundation
    Inventors: Jin-Soo Hwang, Myeong-Suk Kim, Sung-Wook Kim, Sam-Il Kho, Hong-Suk Seo
  • Amine-based compound and organic light-emitting diode including the same
    Patent number: 9673400
    Abstract: An amine-based compound is represented by Formula 1: An organic light-emitting diode includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer and the amine-based compound represented by Formula 1. The OLED including the amine-based compound represented by Formula 1 has good color purity, low driving voltage, high efficiency, high brightness, and/or a long lifetime.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: June 6, 2017
    Assignees: Samsung Display Co., Ltd., SNU R&DB Foundation
    Inventors: Mi-Kyung Kim, Chang-Woong Chu, Sam-Il Kho, Dong-Hyun Kim, Kwan-Hee Lee, Jong-In Hong, Seong-Jin Jeong
  • Organic light emitting device
    Patent number: 9660201
    Abstract: A compound for an organic light emitting device is represented by Chemical Formula 1. An organic light emitting device includes a first electrode, a second electrode facing the first electrode and an organic layer between the first electrode and the second electrode, and the organic layer includes a compound represented by Chemical Formula 1. In the above Chemical Formula 1, Ar and L are the same as defined in the specification.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: May 23, 2017
    Assignees: Samsung Display Co., Ltd., Pusan National University Industry—University Cooperation Foundation
    Inventors: Mi Kyung Kim, Kwan Hee Lee, Chang Woong Chu, Jin Kook Lee, Sam Il Kho
  • Condensed cyclic compound and organic light-emitting device including the same
    Patent number: 9634259
    Abstract: A condensed cyclic compound is represented by Formula 1, and an organic light-emitting device includes the condensed cyclic compound. The organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an organic layer. The organic layer includes an emission layer and the condensed-cyclic compound.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: April 25, 2017
    Assignees: Samsung Display Co., Ltd., Pusan National University Industry—University Cooperation Foundation
    Inventors: Sung-Wook Kim, Myeong-Suk Kim, Jin-Soo Hwang, Sam-Il Kho, Hong-Suk Suh
  • Organic light-emitting device
    Patent number: 9601703
    Abstract: An organic light-emitting device (OLED) includes a first electrode; a second electrode facing the first electrode; an emission layer (EML) between the first electrode and the second electrode; a hole transport region between the first electrode and the EML; an electron transport region between the EML and the second electrode; and an interlayer between the EML and the hole transport region, wherein the interlayer includes an amine-based compound represented by Formula 1 or 2: where Ar1, Ar2, R1-R4, Z11-Z21, p, and q are as defined in the specification.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: March 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sam-Il Kho, Hyoung-Kun Kim
  • CONDENSED CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20170069847
    Abstract: A condensed cyclic compound and an organic light-emitting device including the same, the condensed cyclic compound being represented by the following Formula 1:
    Type: Application
    Filed: August 31, 2016
    Publication date: March 9, 2017
    Inventors: Sung-Wook KIM, Myeong-Suk KIM, Hwan-Hee CHO, Sam-Il KHO, Seung-Soo YOON
  • Amine-based compound and organic light-emitting diode including the same
    Patent number: 9590185
    Abstract: Provided are an amine-based compound and an organic light-emitting diode including the same.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: March 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwan-Hee Cho, Mi-Kyung Kim, Se-Hun Kim, Sam-Il Kho, Hyoung-Kun Kim