Patents by Inventor Bong Ok Kim

Bong Ok 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).

  • Organic electroluminescent compounds, layers and organic electroluminescent device using the same
    Patent number: 9287512
    Abstract: The present invention relates to a novel organic electroluminescent compound, layer and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic light emitting layer and/or device which has high luminous efficiency and a long operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: March 15, 2016
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hee-Choon Ahn, Young-Jun Cho, Hyuck Joo Kwon, Bong-Ok Kim, Seok Keun Yoon, Doo-Hyeon Moon, Hee Sook Kim, Su-Hyun Lee, Hyo-Nim Shin, Kyung Joo Lee, Kyoung-Jin Park, Nam-Kyun Kim
  • Novel Organic Electroluminescent Compounds, Layers and Organic Electroluminescent Device Using The Same
    Publication number: 20150357583
    Abstract: The present invention relates to a novel organic electroluminescent compound, layer and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic light emitting layer and/or device which has high luminous efficiency and a long, operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
    Type: Application
    Filed: August 13, 2015
    Publication date: December 10, 2015
    Inventors: Hee-Choon Ahn, Seok-Keun Yoon, Doo-Hyeon Moon, Hee-Sook Kim, Su-Hyun Lee, Hyo-Nim Shin, Kyung-Joo Lee, Kyoung-Jin Park, Nam-Kyun Kim, Young-Jun Cho, Hyuck-Joo Kwon, Bong-Ok Kim
  • Compounds for organic electronic material and organic electroluminescent device using the same
    Patent number: 9136484
    Abstract: The present invention relates to electroluminescent compounds of formula 1 where A and/or B represent fluorene, carbazole, dibenzo[b,d]thiophene or dibenzo[b,d]furan derivatives and L1, X1, Ar1, Ar2, R5, R6 and R7 are as defined herein, and organic electroluminescent devices comprising the same. The compounds according to the present invention have an advantage in manufacturing an organic electroluminescent device which has a high luminous efficiency and a long operational lifetime.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 15, 2015
    Assignee: Rohm and Haas Electronics Materials Korea Ltd.
    Inventors: Hee-Sook Kim, Seok-Keun Yoon, Kyung-Joo Lee, Hong-Yoep Na, Nam-Kyun Kim, Young-Jun Cho, Hyuck-Joo Kwon, Bong-Ok Kim
  • NOVEL COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
    Publication number: 20150249224
    Abstract: The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device according to the present invention, has an advantage of showing a higher luminous efficiency under a driving voltage lower than that of the device comprising conventional luminescent materials.
    Type: Application
    Filed: September 10, 2013
    Publication date: September 3, 2015
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: So-Young Jung, Bong-Ok Kim, Chi-Sik Kim, Hyun Kim, Jong-Seok Ku, Hyuck-Joo Kwon, Kyung-Joo Lee, Kyoung-Jin Park
  • NOVEL COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
    Publication number: 20150218441
    Abstract: The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present invention emits yellow-green light; lowers the driving voltage of the device by improving the current characteristic of the device; and improves power efficiency and operational lifespan.
    Type: Application
    Filed: March 13, 2014
    Publication date: August 6, 2015
    Inventors: Young-Jun Cho, So-Young Jung, Hyun-Ju Kang, Bong-Ok Kim, Chi-Sik Kim, Hyun Kim, Nam-Kyun Kim, Hyuck-Joo Kwon, Kyung-Joo Lee, Hyo-Nim Shin, Seok-Keun Yoon
  • Novel Organic Electroluminescent Compounds and Organic Electroluminescent Device Using The Same
    Publication number: 20150171341
    Abstract: Provided are a novel organic electroluminescent compound and an organic electroluminescent device using the same. More particularly, the organic electroluminescent compound disclosed herein is represented by Chemical Formula 1: Since the organic electroluminescent compound disclosed herein exhibits good luminous efficiency and excellent life property, it may be used to manufacture OLED devices having very superior operation life.
    Type: Application
    Filed: February 18, 2015
    Publication date: June 18, 2015
    Inventors: Soo Young Lee, Young Jun Cho, Hyuck Joo Kwon, Bong Ok Kim, Sung Min Kim, Seung Soo Yoon
  • Novel Organic Electroluminescent Compounds and Organic Electroluminescent Device Using The Same
    Publication number: 20150171346
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic electroluminescent device which has high luminous efficiency and a long operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
    Type: Application
    Filed: February 18, 2015
    Publication date: June 18, 2015
    Inventors: Hee-Choon Ahn, Seok-Keun Yoon, Doo-Hyeon Moon, Hee-Sook Kim, Su-Hyun Lee, Hyo-Nim Shin, Kyung-Joo Lee, Kyoung-Jin Park, Nam-Kyun Kim, Young-Jun Cho, Hyuck-Joo Kwon, Bong-Ok Kim
  • NOVEL COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
    Publication number: 20150159084
    Abstract: The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present invention emits yellow-green light; lowers the driving voltage of the device by improving the current characteristic of the device; and improves power efficiency and operational lifespan.
    Type: Application
    Filed: July 19, 2013
    Publication date: June 11, 2015
    Inventors: Young-Jun Cho, So-Young Jung, Hyun-Ju Kang, Bong-Ok Kim, Chi-Sik Kim, Hyun Kim, Nam-Kyun Kim, Hyuck-Joo Kwon, Kyung-Joo Lee, Hyo-Nim Shin, Seok-Keun Yoon
  • NOVEL ORGANIC ELECTROLUMINESCENCE COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICE CONTAINING THE SAME
    Publication number: 20150155498
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. Using the organic electroluminescent compound according to the present invention, it is possible to manufacture an OLED device of lowered driving voltages and advanced power efficiency.
    Type: Application
    Filed: May 30, 2013
    Publication date: June 4, 2015
    Inventors: Hee-Choon Ahn, Bong-Ok Kim, Seung-Ae Kim, Yong-Gil Kim, Kyung-Joo Lee, Tae-Jin Lee, Hyuck-Joo Kwon
  • NOVEL COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
    Publication number: 20150137051
    Abstract: The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present invention provides the advantages of excellent luminous characteristics with lower driving voltages, compared to devices using conventional luminescent materials.
    Type: Application
    Filed: June 26, 2013
    Publication date: May 21, 2015
    Inventors: So-Young Jung, Bong-Ok Kim, Chi-Sik Kim, Hyun Kim, Hyuck-Joo Kwon, Kyung-Joo Lee, Kyoung-Jin Park, So-Mi Park
  • NOVEL ORGANIC ELECTROLUMINESCENCE COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICE CONTAINING THE SAME
    Publication number: 20150133662
    Abstract: The present invention relates to novel organic electroluminescent compounds and an organic electroluminescent device comprising the same. The organic electroluminescent compounds according to the present invention have high luminescent efficiency and a long lifespan, and thus an organic electroluminescent device having a long operating lifespan can be prepared by using the organic electroluminescent compounds according to the present invention.
    Type: Application
    Filed: June 12, 2013
    Publication date: May 14, 2015
    Inventors: Hee-Choon Ahn, Young-Jun Cho, Bong-Ok Kim, Nam-Kyun Kim, Jong-Seok Ku, Hyuck-Joo Kwon, Doo-Hyeon Moon
  • NOVEL ORGANIC ELECTROLUMINESCENCE COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICE CONTAINING THE SAME
    Publication number: 20150126736
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention has excellent luminous efficiency, power efficiency, and lifespan characteristic. Using the compounds of the present invention, it is possible to manufacture an OLED device with a long operating lifespan. In addition, the compounds can improve the power efficiency of the device to reduce overall power consumption.
    Type: Application
    Filed: May 2, 2013
    Publication date: May 7, 2015
    Inventors: Young-Jun Cho, Ji-Song Jun, Hee-Ryong Kang, Bong-Ok Kim, Hyuck-Joo Kwon, Kyung-Joo Lee, Seon-Woo Lee, Hong-Yeop Na, Hyo-Nim Shin, Jeong-eun Yang, Soo-Jin Yang
  • NOVEL ORGANIC ELECTROLUMINESCENCE COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICE CONTAINING THE SAME
    Publication number: 20150115205
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. Using the organic electroluminescent compound according to the present invention, it is possible to manufacture an OLED device of lowered driving voltages and advanced power efficiency.
    Type: Application
    Filed: May 2, 2013
    Publication date: April 30, 2015
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Hee-Ryong Kang, Bong-Ok Kim, Seung-Ae Kim, Yong-Gil Kim, Hyuck-Joo Kwon, Kyung-Joo Lee, Tae-Jin Lee, Jeong-Eun Yang
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20150112064
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention has high green luminous efficiency and superior material lifespan characteristics, compared with conventional phosphorescent host materials, and thus can provide an organic electroluminescent device which is excellent in operational lifespan, and induces increased power efficiency and improves power consumption.
    Type: Application
    Filed: April 24, 2013
    Publication date: April 23, 2015
    Inventors: Bong-Ok Kim, Chi-Sik Kim, Jong-Seok Ku, Hyuck-Joo Kwon, Kyung-Joo Lee, Hong-Yeop Na
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20150105563
    Abstract: The present invention relates to novel organic electroluminescent compounds and an organic electroluminescent device containing the same. The organic electroluminescent compounds according to the present invention can be used as a phosphorescent host material, a hole transport material, or a mixed host material; have a good hole transport ability; prevent crystallization in the production of the device; are suitable for forming a layer; and improve the current density of the device thereby reducing the driving voltage of the device.
    Type: Application
    Filed: April 2, 2013
    Publication date: April 16, 2015
    Applicant: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hee-Choon Ahn, Young-Jun Cho, Bong-Ok Kim, Yong-Gil Kim, Hyuck-Joo Kwon, Jong-Seok Ku, Hyo-Jung Lee, Kyung-Joo Lee, Tae-Jin Lee, Jeong-eun Yang
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
    Publication number: 20150025239
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention is better in luminous efficiency and lifespan characteristics compared to conventional materials. Using the compounds of the present invention, it is possible to manufacture an OLED device with a long operational lifespan. In addition, the compounds can improve the power efficiency of the device to reduce overall power consumption.
    Type: Application
    Filed: February 14, 2013
    Publication date: January 22, 2015
    Inventors: Hee-Choon Ahn, Hyo-Jung Lee, Mi-Ja Lee, Soo-Jin Yang, Chi-Sik Kim, Su-Hyun Lee, Hee-Sook Kim, Hyo-Nim Shin, Kyoung-Jin Park, Kyung-Joo Lee, Hyuck-Joo Kwon, Bong-Ok Kim
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
    Publication number: 20140364625
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. Using the organic electroluminescent compounds of the present invention as a phosphorescent host material, a hole transport material, and a mixed host material, it is possible to manufacture an OLED device with improved current efficiency.
    Type: Application
    Filed: January 16, 2013
    Publication date: December 11, 2014
    Inventors: Hee-Choon Ahn, Young-Gil Kim, Hee-Ryong Kang, Jeong-Eun Yang, Hyo-Nim Shin, Tae-Jin Lee, Young-Jun Cho, Kyung-Joo Lee, Hyuck-Joo Kwon, Bong-Ok Kim
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
    Publication number: 20140357866
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. Using the organic electroluminescent compounds of the present invention, it is possible to manufacture an OLED device with a long operating lifespan and high luminous efficiency. In addition, the compounds can improve the power efficiency of the device to reduce overall power consumption.
    Type: Application
    Filed: November 30, 2012
    Publication date: December 4, 2014
    Inventors: Chi-Sik Kim, Soo-Yong Lee, Soo-Jin Yang, Seung-Ae Kim, Kyoung-Jin Park, Hyuck-Joo Kwon, Kyung-Joo Lee, Bong-Ok Kim
  • ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE ORGANIC ELECTROLUMINESCENT COMPOUNDS
    Publication number: 20140346406
    Abstract: The present invention relates to an organic electroluminescent device comprising a combination of specific host compounds and specific dopant compounds. The organic electroluminescent device according to the present invention shows a blue emission; and has a long operating lifespan, high efficiency, high brightness, good color purity, low driving voltage, and improved operational stability.
    Type: Application
    Filed: January 15, 2013
    Publication date: November 27, 2014
    Inventors: Hyo-Jung Lee, Young-Gil Kim, Hyo-Nim Shin, Kyung-Joo Lee, Young-Jun Cho, Hyuck-Joo Kwon, Bong-Ok Kim
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
    Publication number: 20140336392
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. Using the organic electroluminescent compounds of the present invention, it is possible to manufacture an OLED device with a long operating lifespan and high luminous efficiency. In addition, the compounds can improve the power efficiency of the device and reduce overall power consumption.
    Type: Application
    Filed: December 4, 2012
    Publication date: November 13, 2014
    Inventors: Young-Gil Kim, Young-Jun Cho, So-Mi Park, Hyuck-Joo Kwon, Kyung-Joo Lee, Bong-Ok Kim