Patents Assigned to Gracel Display Inc.
  • Publication number: 20090159130
    Abstract: The present invention relates to novel organic electroluminescent compounds exhibiting high luminous efficiency, and organic electroluminescent devices comprising the same.
    Type: Application
    Filed: November 19, 2008
    Publication date: June 25, 2009
    Applicant: Gracel Display Inc.
    Inventors: Sung Jin Eum, Jin Ho Kim, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Publication number: 20090153039
    Abstract: The present invention relates to novel organic electroluminescent compounds, organic electroluminescent devices and organic solar cells comprising the same. Specifically, the organic electroluminescent compounds according to the invention are represented by Chemical Formula (1): wherein, R1 and R2 independently represent hydrogen, deuterium, linear or branched (C1-C20)alkyl, (C2-C20)alkenyl, (C2-C20)alkynyl, (C3-C15)cycloalkyl, tri(C1-C20)alkylsilyl, di(C1-C20)alkyl(C6-C20)arylsilyl, tri(C6-C20)arylsilyl, adamantyl, (C7-C15)bicycloalkyl or (C4-C20)heteroaryl, and the alkyl, alkenyl, alkynyl, cycloalkyl, trialkylsilyl, dialkylarylsilyl, triarylsilyl, adamantyl, bicycloalkyl or heteroaryl of R1 and R2 may be further substituted by one or more substituent(s) selected from deuterium, linear or branched (C1-C20)alkyl, (C1-C20)alkenyl, (C1-C20)alkynyl, halogen, phenyl, fluorenyl, naphthyl and anthryl.
    Type: Application
    Filed: November 19, 2008
    Publication date: June 18, 2009
    Applicant: Gracel Display Inc.
    Inventors: Bo Ra Kim, Mi Ae Lee, Chi Sik Kim, Soo Yong Lee, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Publication number: 20090153037
    Abstract: The present invention relates to novel organic electroluminescent compounds exhibiting high luminous efficiency, and organic electroluminescent devices comprising the same.
    Type: Application
    Filed: November 3, 2008
    Publication date: June 18, 2009
    Applicant: Gracel Display Inc.
    Inventors: Jin Ho Kim, Sung Jin Eum, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Publication number: 20090153040
    Abstract: The present invention relates to organic electroluminescent compounds represented by Chemical Formula (1), and electroluminescent devices comprising the same as host material. L1L1M??Chemical Formula 1 The electroluminescent compounds according to the invention, when used as electroluminescent host material in an OLED, provide lowered operation voltage and significantly improved power efficiency as compared to conventional host material.
    Type: Application
    Filed: November 24, 2008
    Publication date: June 18, 2009
    Applicant: Gracel Display Inc.
    Inventors: Hyun Kim, Sung Jin Eum, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Publication number: 20090145483
    Abstract: The present invention relates to novel organic electroluminescent compounds exhibiting high luminous efficiency, and organic electroluminescent devices comprising the same.
    Type: Application
    Filed: November 12, 2008
    Publication date: June 11, 2009
    Applicant: Gracel Display Inc.
    Inventors: Jin Ho Kim, Sung Jin Eum, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Publication number: 20090108733
    Abstract: The present invention relates to a precursor of metallic complex for electroluminescent material, a luminescent material comprised of said precursor of metallic complex and metal, and an electroluminescent device containing a luminescent material comprised of said precursor and metal. The luminescent material comprised of the precursor according to the present invention and metal is advantageous in that it shows excellent electric conductivity and light emitting property of high efficiency.
    Type: Application
    Filed: January 22, 2006
    Publication date: April 30, 2009
    Applicant: GRACEL DISPLAY INC.
    Inventors: Sung-Min Chin, Sang-Man Si, Keun-Hee Han, Kyung-Hoon Choi, Mi-Young Kwak, Bong-Ok Kim, Sung-Min Kim
  • Publication number: 20090078317
    Abstract: The present invention relates to electroluminescent compounds represented by Chemical Formula (1) L1L1M(Q)m and electroluminescent devices comprising the same as host material. The electroluminescent compound according to the invention, when used as host material of an OLED, noticeably lowers the operation voltage and enhance the power efficiency.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 26, 2009
    Applicant: Gracel Display Inc.
    Inventors: Hyun Kim, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Publication number: 20090062542
    Abstract: The present invention relates to novel red phosphorescent compounds exhibiting high luminous efficiency, and organic electroluminescent devices comprising the same.
    Type: Application
    Filed: July 24, 2008
    Publication date: March 5, 2009
    Applicant: Gracel Display Inc.
    Inventors: Hyun Kim, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Publication number: 20080206596
    Abstract: The present invention relates to a novel red organic electrophosphorescent compound and a display device comprising the same. The phosphor compounds according to the present invention provide red phosphor compounds exhibiting more pure red color than conventional red phosphors and red phosphors having a light emitting property of high efficiency even in a low doping concentration, as well as the property of pure red color mentioned above.
    Type: Application
    Filed: January 18, 2006
    Publication date: August 28, 2008
    Applicant: GRACEL DISPLAY INC.
    Inventors: So-young Jung, Kyu-sung Cho, Sung-min Chin, Kyung-hoon Choi, Jung-soo Kwon, Mi-young Kwak, No-gill Park, Bong-ok Kim, Sung-min Kim
  • Publication number: 20080203360
    Abstract: The present invention relates to an electroluminescent material, a process for preparing the same, and a display device containing the same. The electroluminescent compound comprised of the mixture according to the present invention, having high luminescent properties, can be advantageously and easily prepared with high yield.
    Type: Application
    Filed: January 18, 2006
    Publication date: August 28, 2008
    Applicant: GRACEL DISPLAY INC.
    Inventors: So-young Jung, Kyu-sung Cho, Kyung-hoon Choi, Bong-ok Kim, Sung-min Kim, Seung-soo Yoon
  • Publication number: 20080075973
    Abstract: The present invention is related to organic electroluminescent compounds, methods of their preparation, and electroluminescent devices adopting them as electroluminescent materials.
    Type: Application
    Filed: February 4, 2005
    Publication date: March 27, 2008
    Applicant: Gracel Display inc.
    Inventors: Bong-Ok Kim, Chi-Sik Kim, Hoon Han, Seong-Min Kim, Jung-Yeon Kim, Kyu-Sung Cho, So-Young Jung, Seung-Soo Yun, Hyuck-Joo Kwon, Young-Jun Cho, Young-Kwon Kim, Sung-Min Kim
  • Patent number: 7071123
    Abstract: Provided is a method for fabricating an organic semiconductor transistor having an organic polymeric gate insulating layer. The method includes forming an organic gate insulating layer on a substrate by a vapor deposition method using organic monomer sources, and causing a polymerization reaction to occur in the organic gate insulating layer to complete an organic polymeric gate insulating layer. Since the vapor deposition method, which is a low-temperature dry-type technique, is employed, the organic polymeric gate insulating layer can be uniformly formed on a large-area substrate by a simplified in-situ process.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: July 4, 2006
    Assignee: Gracel Display Inc.
    Inventors: Jae Hoon Shim, Sung Min Kim, Bong Ok Kim, No Gil Park, Mi Young Kwak, Young Kwan Kim