Patents by Inventor Yeon Hwan Kim

Yeon Hwan Kim 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: 20200058877
    Abstract: Provided is an organic light emitting device.
    Type: Application
    Filed: May 11, 2018
    Publication date: February 20, 2020
    Inventors: Yong Bum CHA, Sung Jae LEE, Yeon Hwan KIM, Sang Young JEON, Seong Mi CHO
  • Publication number: 20190389810
    Abstract: The present disclosure relates to a cyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same. The cyclic compound used as a material of an organic material layer of the organic light emitting device, provides improved efficiency, low driving voltage, and improved lifetime characteristics.
    Type: Application
    Filed: April 26, 2018
    Publication date: December 26, 2019
    Inventors: Yong Bum CHA, Yeon Ho CHO, Yeon Hwan KIM, Sang Young JEON, Sung Jae LEE
  • Publication number: 20190378990
    Abstract: The present disclosure relates to a compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
    Type: Application
    Filed: February 23, 2018
    Publication date: December 12, 2019
    Inventors: Yong Bum CHA, Sang Duk SUH, Yeon Hwan KIM, Sang Young JEON, Sung Jae LEE
  • Publication number: 20190169176
    Abstract: The present invention relates to a novel amine-based compound represented by Chemical Formula 1 and an organic light emitting device including the same. The compound provides improved efficiency, low driving voltage, and improved lifetime characteristic of the organic light emitting device.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 6, 2019
    Inventors: Yong Bum CHA, Sang Young JEON, Yeon Ho CHO, Yeon Hwan KIM
  • Publication number: 20190056836
    Abstract: According to an embodiment, a method for operating an electronic device may comprise operating touch circuitry configured to detect a touch or hovering according to a first driving signal in a first operation mode, detecting a first event related to mode switching, and operating the touch circuitry according to a second driving signal different from the first driving signal in a second operation mode based on detecting the first event. Other embodiments are also possible.
    Type: Application
    Filed: August 17, 2018
    Publication date: February 21, 2019
    Inventors: Sang-Yup LEE, Tae-Kyoung KANG, Yeon-Hwan KIM, Jun-Ho KO, Young-Jun AN, Won-Woo YOO, Ji-Young LIM, Jang-Hoon HONG, Hyun-Suk CHOI
  • Patent number: 9423883
    Abstract: Provided are an electronic apparatus for determining validity of touch key input and a method and apparatus for determining validity of touch key input for the electronic apparatus. The method includes determining whether a touch key is input to perform a preset function, determining whether a dummy key used to determine validity of input of the touch key is input, if determining that the touch key is input, and determining validity of input of the touch key based on whether the dummy key is input. According to the present invention, by determining whether touch key input is intended by a user, it is possible to prevent a function undesired by the user from being performed.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 23, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Yup Lee, Hark-Sang Kim, Jung-Won Kim, Jong-Dae Park, Yeon-Hwan Kim, Hyong-Rae Cho
  • Patent number: 8921832
    Abstract: The present invention relates to a novel compound and an organic light emitting device using the compound, and the compound according to the present invention may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: December 30, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dae-Woong Lee, Sung-Kil Hong, Tae-Yoon Park, Yeon-Hwan Kim, Seong-So Kim
  • Publication number: 20140192014
    Abstract: Provided are an electronic apparatus for determining validity of touch key input and a method and apparatus for determining validity of touch key input for the electronic apparatus. The method includes determining whether a touch key is input to perform a preset function, determining whether a dummy key used to determine validity of input of the touch key is input, if determining that the touch key is input, and determining validity of input of the touch key based on whether the dummy key is input. According to the present invention, by determining whether touch key input is intended by a user, it is possible to prevent a function undesired by the user from being performed.
    Type: Application
    Filed: December 18, 2013
    Publication date: July 10, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang-Yup LEE, Hark-Sang KIM, Jung-Won KIM, Jong-Dae PARK, Yeon-Hwan KIM, Hyong-Rae CHO
  • Patent number: 8449989
    Abstract: Disclosed is a compound represented by formula 1: wherein each of A, X, Y, Y? and Y? has the same meaning as described herein. When used in an organic light emitting device, the compound represented by formula 1 has at least one function selected from the group consisting of hole injection, hole transport, light emitting, electron transport, electron injection, etc., depending on the type of each unit forming the trimer or substituents in each unit. An organic light emitting device is also disclosed. The organic light emitting device includes a first electrode, an organic film having one or more layers and a second electrode, laminated successively, wherein at least one layer of the organic film includes at least one compound represented by formula 1.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: May 28, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Kong Kyeom Kim, Min Jeong Lee, Yeon Hwan Kim, Jun Gi Jang
  • Patent number: 8329316
    Abstract: The present invention provides a novel tetraphenylnaphthalene derivative, and an organic light emitting device using the same.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: December 11, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Yeon-Hwan Kim, Dong-Hoon Lee, Hye-Young Jang, Sung-Kil Hong, Sung-Jin Yeo, Kong-Kyeom Kim, Dong-Seob Jeong, So-Yeon Choi, legal representative
  • Patent number: 8198801
    Abstract: The present invention relates to a novel compound that can significantly improve the lifespan, efficiency and thermal stability of an organic light emitting device, and to an organic electroluminescence device or light emitting device comprising the compound in an organic compound layer is also disclosed.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: June 12, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Ji Eun Kim, Jae Chol Lee, Kong Kyeom Kim, Jae Soon Bae, Jun Gi Jang, Sang Young Jeon, Min Soo Kang, Wook Dong Cho, Byung Sun Jeon, Yeon Hwan Kim
  • Patent number: 8137823
    Abstract: The present invention relates to a novel anthracene derivative, a process for preparation thereof, and an organic electronic device using the same. The anthracene derivative according to the present invention can serve as a hole injecting material, a hole transporting material, an electron injecting material, an electron transporting material, or a light emitting material, and particularly as a light emitting host or dopant, especially as a green host or dopant singly, in an organic electronic device including an organic light emitting device. The organic electronic device according to the present invention exhibits excellent characteristics in efficiency, drive voltage, life time, and stability.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: March 20, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Ji-Eun Kim, Jae-Chol Lee, Tae-Yoon Park, Dae-Woong Lee, Kong-Kyeom Kim, Sung-Kil Hong, Hye-Young Jang, Yeon-Hwan Kim, Dong-Seob Jeong
  • Patent number: 8071227
    Abstract: Disclosed are new compounds and an organic light emitting diode using the same. The organic light emitting diode using the new compound according to the present invention exhibits excellent characteristics in terms of actuating voltage, light efficiency, and lifespan.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: December 6, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Byung-Sun Jeon, Wook-Dong Cho, Jeung-Gon Kim, Sang-Young Jeon, Yeon-Hwan Kim
  • Publication number: 20110193074
    Abstract: The present invention relates to a novel compound and an organic light emitting device using the compound, and the compound according to the present invention may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.
    Type: Application
    Filed: October 8, 2009
    Publication date: August 11, 2011
    Inventors: Dae-Woong Lee, Sung-Kil Hong, Tae-Yoon Park, Yeon-Hwan Kim, Seong-So Kim
  • Patent number: 7973306
    Abstract: Disclosed in an anthracene derivative, an organic electronic device using the anthracene derivative, and an electronic apparatus including the organic electronic device. The anthracene derivative is capable of being used as a hole injecting material, a hole transporting material, an electron injecting material, an electron transporting material, and a light emitting material in an organic electronic device including an organic light emitting device. In particular, the anthracene derivative is capable of being used alone as a light emitting material and a host or a dopant in a host/dopant system. The organic electronic device is excellent in views of efficiency, driving voltage, life time, and stability.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: July 5, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Ji-Eun Kim, Jae-Chol Lee, Hye-Young Jang, Tae-Yoon Park, Sung-Kil Hong, Jun-Gi Jang, Jin-Kyoon Park, Hyun Nam, Kong-Kyeom Kim, Yeon-Hwan Kim
  • Patent number: 7821001
    Abstract: An organic electronic device. The device includes a first electrode to inject or extract hole, the first electrode including a conductive layer and an n-type organic compound layer disposed on the conductive layer, a second electrode to inject or extract electron, a p-type organic compound layer disposed between the n-type organic compound layer and the second electrode. The p-type organic compound layer forms an NP junction between the n-type organic compound layer and the p-type organic compound layer. The energy difference between a lowest unoccupied molecular orbital (LUMO) energy of the n-type organic compound layer and a Fermi energy of the conductive layer is about 2 eV or less, and the energy difference between the LUMO energy of the n-type organic compound layer and a highest unoccupied molecular orbital (HOMO) energy of the p-type organic compound layer is about 1 eV or less.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: October 26, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Minsoo Kang, Sae Hwan Son, Hyeon Choi, Jun Gi Jang, Sang Young Jeon, Yeon Hwan Kim, Seokhee Yoon, Young Kyu Han
  • Publication number: 20100065828
    Abstract: Disclosed are new compounds and an organic light emitting diode using the same. The organic light emitting diode using the new compound according to the present invention exhibits excellent characteristics in terms of actuating voltage, light efficiency, and lifespan.
    Type: Application
    Filed: December 3, 2007
    Publication date: March 18, 2010
    Inventors: Byung-Sun Jeon, Wook-Dong Cho, Jeung-Gon Kim, Sang-Young Jeon, Yeon-Hwan Kim
  • Publication number: 20100001262
    Abstract: Disclosed in an anthracene derivative, an organic electronic device using the anthracene derivative, and an electronic apparatus including the organic electronic device. The anthracene derivative is capable of being used as a hole injecting material, a hole transporting material, an electron injecting material, an electron transporting material, and a light emitting material in an organic electronic device including an organic light emitting device. In particular, the anthracene derivative is capable of being used alone as a light emitting material and a host or a dopant in a host/dopant system. The organic electronic device is excellent in views of efficiency, driving voltage, life time, and stability.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 7, 2010
    Inventors: Ji-Eun Kim, Jae-Chol Lee, Hye-Young Jang, Tae-Yoon Park, Sung-Kil Hong, Jun-Gi Jang, Jin-Kyoon Park, Hyun Nam, Kong-Kyeom Kim, Yeon-Hwan Kim
  • Publication number: 20090174312
    Abstract: The present invention provides a novel tetraphenylnaphthalene derivative, and an organic light emitting device using the same.
    Type: Application
    Filed: March 9, 2007
    Publication date: July 9, 2009
    Inventors: Yeon-Hwan Kim, Dong-Hoon Lee, Hye-Young Jang, Sung-Kil Hong, Sung-Jin Yeo, Kong-Kyeom Kim, Dong-Seob Jeong
  • Publication number: 20090121622
    Abstract: Disclosed is a compound represented by formula 1: wherein each of A, X, Y, Y? and Y? has the same meaning as described herein. When used in an organic light emitting device, the compound represented by formula 1 has at least one function selected from the group consisting of hole injection, hole transport, light emitting, electron transport, electron injection, etc., depending on the type of each unit forming the trimer or substituents in each unit. An organic light emitting device is also disclosed. The organic light emitting device includes a first electrode, an organic film having one or more layers and a second electrode, laminated successively, wherein at least one layer of the organic film includes at least one compound represented by formula 1.
    Type: Application
    Filed: October 29, 2008
    Publication date: May 14, 2009
    Applicant: LG CHEM, LTD
    Inventors: Kong Kyeom KIM, Min Jeong LEE, Yeon Hwan KIM, Jun Gi JANG