Patents by Inventor Seok-Keun Yoon

Seok-Keun 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).

  • Patent number: 11889754
    Abstract: The present disclosure provides an organic compound of the following formula and an organic light emitting diode and an OLED device including the same.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: January 30, 2024
    Assignees: LG DISPLAY CO., LTD, P & HTECH
    Inventors: Ji-Cheol Shin, Seon-Keun Yoo, Jeong-Dae Seo, Sang-Beom Kim, Hee-Jun Park, Seo-Yong Hyun, Seok-Keun Yoon
  • Publication number: 20230329101
    Abstract: The present invention relates to an organic light emitting compound adopted as a material for a light efficiency improving layer and the like provided in an organic light emitting device, and an organic light emitting device including the same, and when the organic light emitting compound according to the present invention is adopted as a material for a light efficiency improving layer provided in an organic light emitting device, the organic light emitting compound can be industrially usefully used for various display devices, lighting devices, and the like because it is possible to implement light emitting characteristics such as low voltage driving excellent color purity and excellent light emitting efficiency of the device.
    Type: Application
    Filed: March 12, 2021
    Publication date: October 12, 2023
    Applicant: P&H TECH Co., Ltd.
    Inventors: Seo-Yong HYUN, Seok-Keun YOON, Gwan-hee PARK
  • Publication number: 20230150992
    Abstract: The present invention relates to an organic light emitting compound that is employed for a light efficiency improving layer provided in an organic light emitting device. The organic light emitting device employing the same achieves low-voltage driving of a further improved device and excellent luminous efficiency through improved light extraction efficiency, and thus can be usefully used in various display devices.
    Type: Application
    Filed: October 20, 2020
    Publication date: May 18, 2023
    Applicant: P&H TECH Co., Ltd.
    Inventors: Seo-Yong HYUN, Seok-Keun YOON
  • Patent number: 11629142
    Abstract: Disclosed is a novel organic electroluminescent compound represented by Formula (I): The organic electroluminescent compound is employed as a material for at least one organic layer of an organic electroluminescent device such as a light emitting layer, a hole transport layer, an electron transport layer, an electron blocking layer, and/or a capping layer, achieving excellent luminescent properties (including high luminous efficiency and quantum efficiency) of the device. Also disclosed is an organic electroluminescent device including the organic electroluminescent compound.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: April 18, 2023
    Assignee: P&H TECH CO., LTD.
    Inventors: Seo-Yong Hyun, Seok-Keun Yoon
  • Patent number: 11469378
    Abstract: The present invention provides an electroluminescent compound of one of following formulas Formula 1 and Formula 2. Another aspect of the invention is an electroluminescent device including a first electrode; a second electrode facing the first electrode; and at least one organic material layer between the first and second electrodes, wherein one or more of the at least one organic material layer includes the electroluminescent compound.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: October 11, 2022
    Assignees: LG DISPLAY CO., LTD., PNH TECH
    Inventors: Seon-Keun Yoo, Hee-Jun Park, Jeong-Dae Seo, Seo-Yong Hyun, Ha-Yeon Kim, Seok-Keun Yoon, Sun-Gi Kim, In-Ho Lee
  • Publication number: 20220093899
    Abstract: The present invention relates to an organic light emitting diode which complexly includes capping layers having different refractive indexes to improve light extraction efficiency, reduce a driving voltage, and improve current efficiency.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 24, 2022
    Applicant: P&H TECH Co., Ltd
    Inventors: Seo-Yong HYUN, Seok-Keun YOON, Do Yeol YOON, Eunji KO
  • Publication number: 20220085336
    Abstract: The present invention relates to an organic light emitting diode which includes a capping layer with a low refractive index to improve light extraction efficiency, thereby reducing a driving voltage, improving power efficiency, and improving current efficiency.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 17, 2022
    Applicant: P&H TECH Co., Ltd
    Inventors: Seo-Yong HYUN, Seok-Keun YOON, Do Yeol YOON, Eunji KO
  • Publication number: 20210050527
    Abstract: The present disclosure provides an organic compound of the following formula and an organic light emitting diode and an OLED device including the same.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 18, 2021
    Inventors: Ji-Cheol SHIN, Seon-Keun YOO, Jeong-Dae SEO, Sang-Beom KIM, Hee-Jun PARK, Seo-Yong HYUN, Seok-Keun YOON
  • Publication number: 20200377492
    Abstract: Disclosed is a novel organic electroluminescent compound represented by Formula (I): The organic electroluminescent compound is employed as a material for at least one organic layer of an organic electroluminescent device such as a light emitting layer, a hole transport layer, an electron transport layer, an electron blocking layer, and/or a capping layer, achieving excellent luminescent properties (including high luminous efficiency and quantum efficiency) of the device. Also disclosed is an organic electroluminescent device including the organic electroluminescent compound.
    Type: Application
    Filed: March 13, 2020
    Publication date: December 3, 2020
    Inventors: Seo-Yong HYUN, Seok-Keun YOON
  • Publication number: 20190378981
    Abstract: The present invention provides an electroluminescent compound of one of following formulas Formula 1 and Formula 2. Another aspect of the invention is an electroluminescent device including a first electrode; a second electrode facing the first electrode; and at least one organic material layer between the first and second electrodes, wherein one or more of the at least one organic material layer includes the electroluminescent compound.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 12, 2019
    Applicants: LG Display Co., Ltd., PnH Tech
    Inventors: Seon-Keun YOO, Hee-Jun PARK, Jeong-Dae SEO, Seo-Yong HYUN, Ha-Yeon KIM, Seok-Keun YOON, Sun-Gi KIM, In-Ho LEE
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20140323723
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. The organic electroluminescent compound according to the present invention has an advantage of manufacturing an OLED device having long operating lifespan due to its excellent lifespan characteristics, lower driving voltages, high luminous efficiency, and reduced power consumption induced by improved power efficiency.
    Type: Application
    Filed: November 15, 2012
    Publication date: October 30, 2014
    Inventors: Hee-Choon Ahn, Seok-Keun Yoon, Nam-Kyun Kim, Seung-Ae Kim, Jong-Seok Ku, Hyuck-Joo Kwon, Kyung-Joo Lee, Bong-Ok Kim
  • Publication number: 20140114069
    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: Application
    Filed: March 23, 2012
    Publication date: April 24, 2014
    Applicant: Ronm and Haas Electronic 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
  • Publication number: 20140107338
    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: March 8, 2012
    Publication date: April 17, 2014
    Applicant: Rohm, and Haas Electronic Materials Korea Ltd.
    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
  • Publication number: 20140100367
    Abstract: The present invention relates to a novel compound and an organic electroluminescent device containing the same. The compound according to the present invention can manufacture an organic electroluminescent device which has high luminous efficiency and a long operation lifetime.
    Type: Application
    Filed: May 30, 2012
    Publication date: April 10, 2014
    Applicant: Rohm and Haas Electronics Materials Korea Ltd.
    Inventors: Seok-Keun Yoon, Hong-Yoep NA