Patents by Inventor Byoung Ki Choi

Byoung Ki Choi 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: 7859186
    Abstract: A white organic light emitting device includes an anode, a cathode, a charge generation layer arranged between the anode and the cathode and an organic layer arrangement arranged between the anode and the cathode, the organic layer arrangement including a green light emitting layer, a blue light emitting layer, and a red light emitting layer, one of the green light emitting layer, the blue light emitting layer, and the red light emitting layer includes a first light emitting layer and second light emitting layer, the charge generation layer being arranged between the first light emitting layer and the second light emitting layer.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: December 28, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Tae-yong Noh, Shinichiro Tamura, Byoung-ki Choi, Myeong-suk Kim, Yu-jin Kim, Eun-sil Han
  • Patent number: 7833635
    Abstract: A cyclopentaphenanthrene-based compound is easy to prepare and excellent in solubility, color purity, color stability, and thermal stability. The cyclopentaphenanthrene-based compound is useful as a material for forming an organic layer, in particular, an emitting layer, in an organoelectroluminescent device, and as an organic dye or an electronic material such as a nonlinear optical material.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: November 16, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sang-Hoon Park, Yu-Jin Kim, O-Hyun Kwon, Byoung-Ki Choi, Jhun-Mo Son
  • Publication number: 20100148158
    Abstract: Disclosed is a compound represented by the following Formula 1: The compound exhibits improved solubility and thermal stability in an organic light emitting device. An organic light emitting device including the compound, improves the driving voltage, the emission efficiency, and the color purity of an organic light emitting display.
    Type: Application
    Filed: September 10, 2009
    Publication date: June 17, 2010
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Industry-University Cooperation Foundation Sogang University
    Inventors: Myeong-Suk KIM, Byoung-Ki CHOI, Dong-Woo SHIN, O-Hyun KWON, Haa-Jin YANG, Bong-Jin MOON, Myoung-Soo HAM
  • Patent number: 7732065
    Abstract: Provided are an anthracene derivative compound represented by Formula 1 below and an organic light-emitting device using the same: wherein Ar1 and Ar2 are each independently aromatic groups, R1 and R2 are each independently substituent groups, and X is a heteroatom or substituted heteroatom. The use of the anthracene derivative compound enables to produce an organic light-emitting device with better driving voltage, brightness, efficiency, and color purity.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: June 8, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yi-yeol Lyu, Eun-sil Han, Young-hun Byun, Myeong-suk Kim, Dong-woo Shin, Byoung-ki Choi, O-hyun Kwon, Woon-jung Paek
  • Patent number: 7718278
    Abstract: Provided is an anthracene derivative compound represented by Formula 1 below and an organic light-emitting device using the same: wherein Ar1, Ar2, R1, R2, R?, m, n, j, k, and X are as defined in the specification. The anthracene derivative compound is advantageously used in the production of an organic light-emitting device with better driving voltage, efficiency, and color purity.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: May 18, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yi-yeol Lyu, Jhun-mo Son, Das Rupasree Ragini, Byoung-ki Choi
  • Publication number: 20100019232
    Abstract: Provided are a method of manufacturing an organic light emitting device. The method includes forming an electron injection layer by vacuum co-depositing an organic semiconductor material having an electron mobility of about 1×10?6 cm2/V·s or more in an electric field of about 1×106 V/m and a metal azide.
    Type: Application
    Filed: June 9, 2009
    Publication date: January 28, 2010
    Inventors: Tae-woo LEE, Tae-yong NOH, Haa-jin YANG, Byoung-ki CHOI, Myeong-suk KIM, Dong-woo SHIN
  • Publication number: 20100019663
    Abstract: Provided is a fused aromatic compound suitable for an organic layer of an organic light emitting emitting diode (OLED).
    Type: Application
    Filed: June 8, 2009
    Publication date: January 28, 2010
    Inventors: Dong-woo SHIN, Byoung-ki CHOI, Myeong-suk KIM, Tae-yong NOH, O-hyun KWON, Tae-woo LEE, Yu-jin KIM
  • Publication number: 20090309491
    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, wherein the organic layer includes a first layer including an organic-metal complex represented by Formula 1 below, and a method of preparing the same: wherein Formula 1 is described in the description of the invention.
    Type: Application
    Filed: May 5, 2009
    Publication date: December 17, 2009
    Inventors: O-hyun KWON, Sang-hoon Park, Byoung-ki Choi, Dong-woo Shin
  • Publication number: 20090230857
    Abstract: Provided are an aromatic heterocyclic compound represented by Formula 1 below, an organic light emitting diode including the same, and a method of manufacturing the organic light emitting diode: wherein descriptions of Formula 1 are the same as defined in the detailed description of the invention.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Inventors: Byoung-ki Choi, O-hyun Kwon, Myeong-suk Kim, Dong-woo Shin, Yu-ri Choi, Duk-keun An, Seong-jib Choi
  • Publication number: 20090230854
    Abstract: Provided is an indeno indene-based compound represented by Formula 1: where R1, R2, R3, R4, R5 and R6 are the same as in the detailed description. An organic light emitting device including the indeno indene-based compound has low driving voltage, high efficiency, and high color purity.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Inventors: Myeong-suk Kim, Byoung-ki Choi, Yu-jin Kim, Dong-woo Shin, Tae-yong Noh, O-hyun Kwon, Tae-woo Lee
  • Publication number: 20090230855
    Abstract: Provided are a compound represented by Formula 1 and an organic light emitting device including the same: X—Ar1—Ar2—Y ??(1) where Ar1, Ar2, X, and Y are the same as in the detailed description. The organic light emitting device including the compound has low driving voltage, high brightness, high efficiency, and high color purity.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Inventors: Myeong-suk Kim, Dong-woo Shin, Byoung-ki Choi, Yu-jin Kim, Tae-yong Noh, O-hyun Kwon, Tae-woo Lee
  • Publication number: 20090186148
    Abstract: In a method of forming a pattern of an organic light emitting device (OLED), an organic material is evaporated in a predetermined pattern by using a pre-patterned heating element, and the evaporated organic material is transferred to a substrate where the OLED is formed. The method includes preparing a template having a heating element in a pattern corresponding to a multilayered structure of an OLED including a plurality of functional layers; forming an organic layer on the heating element; drawing a substrate for the OLED near to the heating element of the template; and transferring the organic layer on the heating element to the substrate by evaporating the organic layer using the heating element.
    Type: Application
    Filed: July 17, 2008
    Publication date: July 23, 2009
    Inventors: Yu-Jin Kim, Jun-hee Choi, Andrei Zoulkarneev, Tae-yong Noh, Byoung-ki Choi, Myeong-suk Kim, Dong-woo Shin, Tae-woo Lee, Yu-ri Choi
  • Publication number: 20090149649
    Abstract: The present invention provides an aromatic heterocyclic compound represented by Formula 1 below, an organic light-emitting diode including an organic layer comprising the aromatic heterocyclic compound, and a method of manufacturing the organic light-emitting diode: wherein A, Ar1, Ar2, n, m, and k are as described in the detailed description of the present invention.
    Type: Application
    Filed: April 30, 2008
    Publication date: June 11, 2009
    Inventors: Dong-woo Shin, Myeong-suk Kim, Tae-woo Lee, Yu-jin Kim, Eun-sil Han, Woon-jung Paek, Yu-ri Choi, Byoung-ki Choi, Tae-yong Noh, O-hyun Kwon, Haa-jin Yang, Young-mok Son
  • Publication number: 20090098397
    Abstract: Provided are an indene derivative compound represented by Formula 1 below and an organic light emitting device including the same: X—Ar1—Ar2—Y ??Formula 1 wherein Ar1, Ar2 and X are described in the detailed description, and Y is represented by one of Formulae 2a to 2d: wherein R1 to R4 and Z are described in the detailed description. An organic light emitting device having improved driving voltage properties, brightness, efficiency and color purity can be prepared by including the indene derivative compound.
    Type: Application
    Filed: April 3, 2008
    Publication date: April 16, 2009
    Inventors: Myeong-suk Kim, Dong-woo Shin, Yu-jin Kim, Byoung-ki Choi, Tae-yong Noh, O-hyun Kwon, Tae-woo Lee, Eun-sil Han, Woon-jung Paek
  • Publication number: 20090026930
    Abstract: An aromatic compound represented by Formula 1 below and an organic light-emitting diode including the same: M1-(B)n-M2 ??(1) The aromatic compound has excellent thermal stability and emission characteristics. Thus, the organic light-emitting diode employing the aromatic compound can exhibit a low driving voltage, high efficiency, and high brightness.
    Type: Application
    Filed: March 28, 2008
    Publication date: January 29, 2009
    Inventors: Dong-woo Shin, Byoung-ki Choi, Tae-yong Noh, O-hyun Kwon, Myeong-suk Kim, Yu-jin Kim, Eun-sil Han, Woon-jung Paek
  • Publication number: 20080297036
    Abstract: A white organic light emitting device includes an anode, a cathode, a charge generation layer arranged between the anode and the cathode and an organic layer arrangement arranged between the anode and the cathode, the organic layer arrangement including a green light emitting layer, a blue light emitting layer, and a red light emitting layer, one of the green light emitting layer, the blue light emitting layer, and the red light emitting layer includes a first light emitting layer and second light emitting layer, the charge generation layer being arranged between the first light emitting layer and the second light emitting layer.
    Type: Application
    Filed: March 3, 2008
    Publication date: December 4, 2008
    Inventors: Tae-yong Noh, Shinichiro Tamura, Byoung-ki Choi, Myeong-suk Kim, Yu-jin Kim, Eun-sil Han
  • Patent number: 7459549
    Abstract: Disclosed herein is a composition for preparing a nanoporous material. The composition comprises i) a cyclodextrin derivative, ii) a thermostable matrix precursor, and iii) a solvent for dissolving the components i) and ii). The composition enables the preparation of a low dielectric constant film in which nanopores with a size of 20 ? or less are uniformly distributed.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: December 2, 2008
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Jin Heong Yim, Byoung Ki Choi, Duk Keun An
  • Publication number: 20080122344
    Abstract: Provided are an organic light emitting compound represented by Formula 1 below, an organic light emitting device comprising the same, and a method of manufacturing the light emitting device: wherein CY1, CY2, Ar1, R1 and R2 are described in the detailed description of the invention. An organic light emitting device comprising the organic light emitting compound has low turn-on voltage, high efficiency, high color purity and high luminance.
    Type: Application
    Filed: May 31, 2007
    Publication date: May 29, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-woo SHIN, Eun-sil HAN, Woon-jung PAEK, Yi-yeol LYU, O-hyun KWON, Myeong-suk KIM, Byoung-ki CHOI, Jhun-mo SON, Young-mok SON
  • Publication number: 20080122346
    Abstract: Provided is an anthracene derivative compound represented by Formula 1 below and an organic light-emitting device using the same: wherein Ar1, Ar2, R1, R2, R?, m, n, j, k, and X are as defined in the specification. The anthracene derivative compound is advantageously used in the production of an organic light-emitting device with better driving voltage, efficiency, and color purity.
    Type: Application
    Filed: August 2, 2007
    Publication date: May 29, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yi-yeol Lyu, Jhun-mo Son, Das Rupasree Ragini, Byoung-ki Choi
  • Publication number: 20080124455
    Abstract: Provided are an organic light emitting compound represented by Formula 1 below, an organic light emitting device comprising the same, and a method of manufacturing the organic light emitting device: where CY1 and CY2 are each independently a fused C6-C50 aromatic ring, Ar1 is a substituted or unsubstituted C6-C50 arylene group, Ar2, Ar3, Ar4, and Ar5 are each independently a substituted or unsubstituted C6-C50 aryl group, m and n are independently 0-3, and R1 and R2 are substituent groups. An organic light emitting device comprising the organic light emitting compound has low turn-on voltage, high efficiency, high color purity and high luminance.
    Type: Application
    Filed: June 22, 2007
    Publication date: May 29, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-woo SHIN, Eun-sil HAN, Woon-jung PAEK, Yi-yeol LYU, O-hyun KWON, Myeong-suk KIM, Byoung-ki CHOI, Jhun-mo SON, Young-mok SON