Patents by Inventor Kyung-jin Yoon

Kyung-jin Yoon 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: 20180205023
    Abstract: Embodiments relate to a delayed fluorescence compound of Formula 1: or Formula 2: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.
    Type: Application
    Filed: March 13, 2018
    Publication date: July 19, 2018
    Inventors: Joong-Hwan YANG, Kyung-Jin YOON, Hyo-Jin NOH, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Publication number: 20180138434
    Abstract: Provided are a quantum dot light-emitting diode including an interface control layer located between a luminous material layer using quantum dots as a luminous material and at least one charge transfer layer for supplying charges to the luminous material layer, and a quantum dot light-emitting display device including the same. Since the interface control layer is provided between the luminous material layer and the at least one charge transfer layer, the occurrence of an interface defect due to an interfacial energy mismatch between the luminous material layer and the at least one charge transfer layer may be prevented to obtain the luminous material layer including quantum dots with uniform morphology. Furthermore, since the interface control layer is used, oxygen or moisture may be prevented from permeating into the luminous material layer, thereby preventing degradation of the quantum dots used as a luminous material.
    Type: Application
    Filed: November 13, 2017
    Publication date: May 17, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Kyung-Jin YOON, Na-Yeon LEE
  • Patent number: 9954186
    Abstract: Embodiments relate to a delayed fluorescence compound of Formula 1: or Formula 2: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: April 24, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Hwan Yang, Kyung-Jin Yoon, Hyo-Jin Noh, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 9837619
    Abstract: Discussed is a delayed fluorescence compound including a first electron donor moiety of indolo-[3,2,1-j,k]carbazole; a second electron donor moiety selected from indolo-[3,2,1-j,k]carbazole, carbazole, or triphenylamine; and an electron acceptor moiety selected from dibenzothiophene sulfone or diphenyl sulfone, wherein the first and second electron donor moieties are combined to the electron acceptor moiety, and the electron acceptor moiety is combined to a third position or a sixth position of the first electron donor moiety.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: December 5, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Hwan Yang, Kyung-Jin Yoon, Hyo-Jin Noh, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 9806269
    Abstract: Embodiments relate to a delayed fluorescence compound and a display device including the delayed fluorescence compound. The delayed fluorescence compound includes an electron acceptor moiety of benzo[4,5]thieno[2,3-b]quinoxaline and at least one electron donor moiety covalently bonded to the electron acceptor moiety. The at least one electron donor moiety is covalently bonded to a benzene ring of benzo[4,5]thieno[2,3-b]quinoxaline and is selected from carbazole, phenylcarbazole, acridine, and phenylacridine. The effective charge transfer in the delayed fluorescence compound results in improved emitting efficiency of the compound.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: October 31, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hyo-Jin Noh, Kyung-Jin Yoon, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 9711735
    Abstract: Discussed is a delayed fluorescence compound of Formula 1: wherein n is 1 or 0, and A is selected from Formula 2: wherein D is selected from Formula 3: and each of “L1” and “L2” is independently selected from Formula 4: wherein R1 in the Formula 2 is selected from hydrogen or phenyl, and each of X, Y, and Z is independently selected from carbon and nitrogen, and wherein at least two selected from X, Y, and Z are nitrogen, and R2 in the Formula 4 is selected from one of hydrogen and C1 alkyl through C10 alkyl.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: July 18, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Hwan Yang, Kyung-Jin Yoon, Hyo-Jin Noh, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 9371484
    Abstract: An organic light emitting diode (OLED) device includes a first electrode; a second electrode facing the first electrode; an emitting material layer disposed between the first and second electrodes and a horizontally oriented liquid crystal type emitting material.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: June 21, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Jin Yoon, Gee-Sung Chae, Soon-Wook Cha, Kyung-Hoon Lee, Seog-Shin Kang, Su-Yeon Lee, Hyo-Jin Noh, Dae-Wi Yoon
  • Publication number: 20160163997
    Abstract: Embodiments relate to a delayed fluorescence compound and a display device including the delayed fluorescence compound. The delayed fluorescence compound includes an electron acceptor moiety of benzo[4,5]thieno[2,3-b]quinoxaline and at least one electron donor moiety covalently bonded to the electron acceptor moiety. The at least one electron donor moiety is covalently bonded to a benzene ring of benzo[4,5]thieno[2,3-b]quinoxaline and is selected from carbazole, phenylcarbazole, acridine, and phenylacridine. The effective charge transfer in the delayed fluorescence compound results in improved emitting efficiency of the compound.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 9, 2016
    Inventors: Hyo-Jin NOH, Kyung-Jin YOON, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Publication number: 20160163989
    Abstract: Discussed is a space-through charge transfer compound including a paracyclophane core, an electron donor moiety selected from the group consisting of carbazole and diphenyl amine, and an electron acceptor moiety selected from the group consisting of pyrimidine, diphenyltriazine, and triazole. The electron donor moiety and the electron acceptor moiety are indirectly or directly combined to the paracyclophane core with or without a linker, respectively.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 9, 2016
    Inventors: Joong-Hwan YANG, Kyung-Jin YOON, Hyo-Jin NOH, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Publication number: 20160133856
    Abstract: Embodiments relate to a delayed fluorescence compound of Formula 1: or Formula 2: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 12, 2016
    Inventors: Joong-Hwan YANG, Kyung-Jin YOON, Hyo-Jin NOH, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Publication number: 20160111659
    Abstract: Discussed is a delayed fluorescence compound of Formula 1: wherein n is 1 or 0, and A is selected from Formula 2: wherein D is selected from Formula 3: and each of “L1” and “L2” is independently selected from Formula 4: wherein R1 in the Formula 2 is selected from hydrogen or phenyl, and each of X, Y, and Z is independently selected from carbon and nitrogen, and wherein at least two selected from X, Y, and Z are nitrogen, and R2 in the Formula 4 is selected from one of hydrogen and C1 alkyl through C10 alkyl.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 21, 2016
    Inventors: Joong-Hwan YANG, Kyung-Jin YOON, Hyo-Jin NOH, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Publication number: 20160111650
    Abstract: Discussed is a space-through charge transfer compound including a naphthalene core; an electron donor moiety selected from carbazole and phenylcarbazole; and an electron acceptor moiety selected from pyridine, diazine, triazole, and phenyl benzodiazole, wherein the electron donor moiety and the electron acceptor moiety are combined to first and eighth positions of the naphthalene core with a benzene linker, respectively.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 21, 2016
    Inventors: Hyo-Jin NOH, Kyung-Jin YOON, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Publication number: 20160111660
    Abstract: Discussed is a delayed fluorescence compound including a first electron donor moiety of indolo-[3,2,1-j,k]carbazole; a second electron donor moiety selected from indolo-[3,2,1-j,k]carbazole, carbazole, or triphenylamine; and an electron acceptor moiety selected from dibenzothiophene sulfone or diphenyl sulfone, wherein the first and second electron donor moieties are combined to the electron acceptor moiety, and the electron acceptor moiety is combined to a third position or a sixth position of the first electron donor moiety.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 21, 2016
    Inventors: Joong-Hwan YANG, Kyung-Jin YOON, Hyo-Jin NOH, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Patent number: 9146420
    Abstract: A liquid crystal display (LCD) device according to an embodiment includes a liquid crystal panel; a first polarization plate on the liquid crystal panel; a backlight unit under the liquid crystal panel; and a quantum rod sheet disposed between the liquid crystal panel and the backlight unit.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: September 29, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Moon-Bae Gee, Jeong-Ae Lee, Kyung-Chan Kim, Kyung-Hoon Lee, Kyung-Jin Yoon, Joong-Pill Park, Sung-Hee Cho, Hyo-Jin Noh, Kyung-Kook Jang, Kyung-Seok Jeong
  • Publication number: 20140160398
    Abstract: The present invention provides an organic light emitting diode (OLED) device including a first electrode; a second electrode facing the first electrode; an emitting material layer disposed between the first and second electrodes and including a liquid crystal type emitting material being horizontally oriented.
    Type: Application
    Filed: August 22, 2013
    Publication date: June 12, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Kyung-Jin YOON, Gee-Sung CHAE, Soon-Wook CHA, Kyung-Hoon LEE, Seog-Shin KANG, Su-Yeon LEE, Hyo-Jin NOH, Dae-Wi YOON
  • Publication number: 20130107170
    Abstract: A liquid crystal display (LCD) device according to an embodiment includes a liquid crystal panel; a first polarization plate on the liquid crystal panel; a backlight unit under the liquid crystal panel; and a quantum rod sheet disposed between the liquid crystal panel and the backlight unit.
    Type: Application
    Filed: May 23, 2012
    Publication date: May 2, 2013
    Inventors: Moon-Bae GEE, Jeong-Ae LEE, Kyung-Chan KIM, Kyung-Hoon LEE, Kyung-Jin YOON, Joong-Pill PARK, Sung-Hee CHO, Hyo-Jin NOH, Kyung-Kook JANG, Kyung-Seok JEONG
  • Patent number: 7959462
    Abstract: A connector is provided which includes a housing having a plurality of pinholes which are connectable to a signal cable and through which a plurality of electrical signals are transmitted or received, and a plurality of connection pins extending from the housing where a first end of each connection pin is electrically connected to at least one of the plurality of pinholes, and a second end of each connection pin is mountable on a printed circuit board (PCB), wherein the total number of the plurality of connection pins is less than the total number of the plurality of pinholes.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: June 14, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-jin Yoon, In-beom Kim
  • Publication number: 20110059627
    Abstract: A connector is provided which includes a housing having a plurality of pinholes which are connectable to a signal cable and through which a plurality of electrical signals are transmitted or received, and a plurality of connection pins extending from the housing where a first end of each connection pin is electrically connected to at least one of the plurality of pinholes, and a second end of each connection pin is mountable on a printed circuit board (PCB), wherein the total number of the plurality of connection pins is less than the total number of the plurality of pinholes.
    Type: Application
    Filed: August 13, 2010
    Publication date: March 10, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-jin YOON, In-beom KIM
  • Publication number: 20050104264
    Abstract: A method for surface modification of oxide ceramics including the alumina ceramics used as heat resistant parts, wear resistant parts, the semiconductor fabricating parts, etc., and oxide ceramics produced by the method, in which the surface modification is carried out by permeating a glass into the surface of the oxide ceramics through heat treatment, so that the flexural strength, the heat resistance, and the wear resistance may be improved and the surface cracks may be cured. The surface modification method for oxide ceramics includes the step for carrying out heat treatment for the oxide ceramics and the glass at 1000-1700° C. for several seconds to several hours by using a heating element such as an electric heating furnace. According to the surface modification method for the oxide ceramics, the strength, the heat resistance, and the wear resistance of the oxide ceramics may be improved by simple procedure at a low cost.
    Type: Application
    Filed: January 22, 2004
    Publication date: May 19, 2005
    Inventors: Seong-Jai Cho, Min-Cheol Chu, Hyun-Min Park, Kyung-Jin Yoon