Patents by Inventor Yoon-Hyun Kwak

Yoon-Hyun Kwak 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: 9178001
    Abstract: The present invention provides an organic light emitting diode comprising a substrate comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel; a first electrode disposed on the substrate; a second electrode facing the first electrode; an emission layer disposed between the first electrode and the second electrode; and a first layer disposed between the first electrode and the second electrode and containing an ambipolar compound, and a method for manufacturing the organic light emitting diode.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: November 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Hyun Kwak, Sun-Young Lee, Bum-Woo Park, Chang-Ho Lee, Se-Jin Cho, Jong-Hyuk Lee, Hee-Joo Ko
  • Publication number: 20150311451
    Abstract: A carbazole-based compound and an organic light-emitting device including the carbazole-based compound, the compound being represented by one of the following Formulae 1 to 3:
    Type: Application
    Filed: November 5, 2014
    Publication date: October 29, 2015
    Inventors: Myeong-Suk KIM, Yoon-Hyun KWAK, Soung-Wook KIM, Jae-Hong KIM, Moon-Jae LEE
  • Patent number: 9172055
    Abstract: An organic light-emitting device includes an emission layer between first and second electrodes, a first hole transport layer that is between the emission layer and the first electrode and that includes a first hole transport compound and a first electron acceptor, a second hole transport layer that is between the emission layer and first hole transport layer and that includes a second hole transport compound, a third hole transport layer that is between the emission layer and the second hole transport layer and that includes a third hole transport compound and a second electron acceptor, a fourth hole transport layer that is between the emission layer and the third hole transport layer and that includes a fourth hole transport compound, a buffer layer between the emission layer and the fourth hole transport layer, and an electron transport layer that includes a pyrimidine-based compound.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: October 27, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyoung-Kun Kim, Sam-Il Kho, Mie-Hwa Park, Yoon-Hyun Kwak, Ja-Hyun Im, Chang-Woong Chu, Kwan-Hee Lee
  • Patent number: 9163004
    Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound: wherein R1 through R9 are defined as in the specification.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: October 20, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Hyun Kwak, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jong-Hyuk Lee, Hee-Joo Ko
  • Patent number: 9118021
    Abstract: Novel heterocyclic compounds that impart improved luminescence efficiency characteristics such as low voltage, high luminance and long lifetime to organic light-emitting devices are described. Synthetic methods for the subject heterocyclic compounds are described. Methods for the construction of an organic light-emitting device comprising at least one of the subject heterocyclic compounds and comprising various hole transport layers, various electron transport layers and an emission layer are disclosed. The emission layer can comprise red, green, blue and white emission layers; one of said emission layers can comprise a phosphorescent compound. In certain embodiments, the heterocyclic compounds are useful as either fluorescent dopants or as phosphorescent hosts in the emission layer.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: August 25, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee, Bo-Ra Lee
  • Publication number: 20150221872
    Abstract: Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.
    Type: Application
    Filed: January 28, 2015
    Publication date: August 6, 2015
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Patent number: 9079903
    Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound: wherein X1 and X2, X1 and R1 to R10 are defined as in the specification.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: July 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bum-Woo Park, Yoon-Hyun Kwak, Sun-Young Lee, Chang-Ho Lee, Se-Jin Cho
  • Patent number: 9067885
    Abstract: A heterocyclic compound represented by Formula 1 or Formula 2 below and an organic light-emitting device including the heterocyclic compound: wherein X1, X2, and R1 through R16 are defined as in the specification.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: June 30, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Hyun Kwak, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jong-Hyuk Lee, Hyung-Jun Song
  • Patent number: 9051328
    Abstract: Embodiments of the present invention are directed to heterocyclic compounds and organic light-emitting devices including the heterocyclic compounds. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltages, high luminance and long lifespans.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: June 9, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Yoon-Hyun Kwak, Hye-Jin Jung, Jong-Hyuk Lee, Jin-O Lim, Hee-Joo Ko
  • Patent number: 9054321
    Abstract: A heterocyclic compound represented by Formula 1, and an organic layer including the heterocyclic compound: wherein Formula 1 is as defined in the specification. The organic light-emitting device including the heterocyclic compound has high efficiency, low driving voltage, high brightness, and long lifespan.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: June 9, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bum-Woo Park, Yoon-Hyun Kwak, Sun-Young Lee
  • Patent number: 9040171
    Abstract: A heterocyclic compound represented by Formula 1 or Formula 2 below and an organic light-emitting device including the heterocyclic compound: wherein X1, X2, and R1 through R16 are defined as in the specification.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Hyun Kwak, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jong-Hyuk Lee, Hyung-Jun Song
  • Patent number: 9006721
    Abstract: An organic light-emitting diode includes a substrate, a first electrode on the substrate, a second electrode facing the first electrode, an emission layer interposed between the first electrode and the second electrode, a hole transportation region between the first electrode and the emission layer, and an electron transportation region interposed between the emission layer and the second electrode. The hole transportation region includes a first compound represented by Formula 1 below, and at least one of the hole transportation region and the emission layer includes a second compound represented by Formula 100 below: wherein Ar101, Ar102, xa, xb, R101-R119, Ar50, Ar60, R51-R60 and p are further defined.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Youn Lee, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Jong-Won Choi, Wha-Il Choi, So-Yeon Kim
  • Patent number: 8999528
    Abstract: A condensation compound is represented by Formula 1, 2, or 3 where R1 to R24 and A to F are further defined in the detailed description.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: So-Yeon Kim, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, Sun-Young Lee, Ji-Youn Lee, Jin-Young Yun
  • Patent number: 8993128
    Abstract: A heterocyclic compound, organic light-emitting device, and a flat panel display device, the heterocyclic compound being represented by Formula 1 or 2 below:
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun-Young Lee, Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Hye-Jin Jung, Jin-O Lim, Jong-Hyuk Lee, Sang-Hyun Han, Se-Jin Cho
  • Patent number: 8987709
    Abstract: A polymer and an organic light-emitting device including the polymer. An example of the polymer is wherein in Formula 1, Ar1 is each independently represented by -(Q1)n-, and Q1 is selected from the group consisting of a substituted or unsubstituted C5-C30 arylene group, a substituted or unsubstituted C4-C30 heteroarylene group, a substituted or unsubstituted C2-C30 alkenylene group, and a group represented by —N(Z1)—, and n is an integer from 1 to 10, and n groups of Q1 in -(Q1)n- is identical to or different from each other, and X1 and X2 are each independently selected from the group consisting of —O—, —S—, —N(Z2)—, and —C(Z3)(Z4)—.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Yeon Kim, Seung-Gak Yang, Jae-Yong Lee, Jeoung-In Yi, Yoon-Hyun Kwak, Jong-Hyuk Lee
  • Publication number: 20150076459
    Abstract: An organic light-emitting device includes an emission layer including a novel dopant comprising a first compound represented by Formula 1 and a novel host comprising a second compound represented by Formula 100 wherein in Formulae 1 and 100, X1, X11, R1, R2, R4, R51 to R60, L, a, n and m are the same as defined in the present application.
    Type: Application
    Filed: May 8, 2014
    Publication date: March 19, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Won Choi, Yoon-Hyun Kwak, Bum-Woo Park, Sun-Young Lee, Wha-Il Choi, So-Yeon Kim, Ji-Youn Lee
  • Patent number: 8974922
    Abstract: Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: March 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Patent number: 8974921
    Abstract: A condensed-cyclic compound and an organic light-emitting diode including the same.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: March 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun-Young Lee, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Hyuk Lee, Bo-Ra Lee, Sang-Hyun Han, Hye-Jin Jung, Young-Kook Kim, Jin-O Lim, Seok-Hwan Hwang
  • Publication number: 20150053934
    Abstract: A heterocyclic compound represented by Formula 1 and an organic light-emitting device including the same. The heterocyclic compound represented by Formula 1 has excellent light emitting characteristics and high charge transporting capabilities.
    Type: Application
    Filed: March 18, 2014
    Publication date: February 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sun-Young LEE, Yoon-Hyun KWAK, Bum-Woo PARK, Jong-Won CHOI, Wha-Il CHOI, So-Yeon KIM, Ji-Youn LEE
  • Patent number: 8911885
    Abstract: Embodiments of the present invention are directed to heteroarylamine compounds and organic luminescence devices including the heteroarylamine compounds. The organic luminescence devices using the heteroarylamine compounds have high-efficiency, low driving voltages, high luminance and long lifetimes.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: December 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Yoon-Hyun Kwak, Hye-Jin Jung, Jong-Hyuk Lee, Jin-O Lim, Chang-Ho Lee