Patents Assigned to Rohm and Haas Electronic Materials Korea Ltd.
  • Patent number: 12284910
    Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having improved driving voltage and/or luminous efficiency characteristics can be provided.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: April 22, 2025
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hong-Se Oh, Ga-Won Lee, Tae-Jin Lee
  • Patent number: 12256635
    Abstract: An organic electroluminescent compound and an organic electroluminescent device comprising the same provide an organic electroluminescent device having low driving voltage and/or excellent power efficiency and/or improved driving lifespan.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: March 18, 2025
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Doo-Hyeon Moon, Ji-Song Jun
  • Patent number: 12242193
    Abstract: Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that in a first aspect comprise a crosslinker component that comprises a structure of the following Formula (I):
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: March 4, 2025
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Eui-Hyun Ryu, Jin Hong Park, You Rim Shin, Ji-Hon Kang, Jung-June Lee, Jae-Bong Lim
  • Patent number: 12234219
    Abstract: An organic electroluminescent compound and a plurality of host materials produce an organic electroluminescent device having an improved luminous efficiency.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: February 25, 2025
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Eun-Joung Choi, Hyun-Ju Kang, Hong-Yeop Na, Su-Hyun Lee, Sang-Hee Cho
  • Patent number: 12209093
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency can be provided.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: January 28, 2025
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hyo-Jung Lee, Young-Kwang Kim, Jin-Ri Hong
  • Patent number: 12207547
    Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material, and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure can provide an organic electroluminescent device having improved lifespan properties compared to the organic electroluminescent device comprising a conventional organic electroluminescent compound.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: January 21, 2025
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hyo-Jung Lee, Dominea Rathwell, Sang-Hee Cho, Hyun-Ju Kang
  • Patent number: 12114561
    Abstract: The present disclosure relates to a plurality of light-emitting materials comprising at least one of first compounds and at least one of second compounds, wherein the first compound is represented by formula 1, and the second compound is represented by formula 2, and an organic electroluminescent device having improved lifetime properties can be provided by comprising the plurality of light-emitting materials.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: October 8, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Chi-Sik Kim, Soo-Yong Lee, Seung-Hoon Yoo, Dong-Hyung Lee, Tae-Jin Lee
  • Patent number: 12102001
    Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan can be provided.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: September 24, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Young-Kwang Kim, Hong-Se Oh, Ji-Song Jun, Chi-Sik Kim, Kyoung-Jin Park, Doo-Hyeon Moon
  • Patent number: 12096687
    Abstract: The present disclosure relates to a plurality of light-emitting materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material and/or a dopant material, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency and/or lifetime properties compared to conventional organic electroluminescent devices.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: September 17, 2024
    Assignees: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Yoo-Jin Doh, Chi-Sik Kim, Soo-Yong Lee, Seung-Hoon Yoo, Viacheslav V Diev, Charles D McLaren, Yunlong Zou, Mi-Ran Seo, Denis Yurievich Kondakov
  • Patent number: 12082496
    Abstract: The present disclosure relates to a composition material for an organic electroluminescent device, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the composition material for an organic electroluminescent device of the present disclosure, it is possible to provide an organic electroluminescent device having high luminous efficiency and/or long lifespan characteristics.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: September 3, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Bitnari Kim, Sang-Hee Cho, Hyo-Jung Lee, Ye-Jin Jeon, Hyun-Ju Kang, Su-Hyun Lee, Jeong-Eun Yang
  • Patent number: 12055854
    Abstract: A coating composition comprising a crosslinkable polyester polymer comprising an isocyanurate group and a crosslinkable group; a crosslinker; and an acid catalyst, wherein at least one of the crosslinkable polyester polymer and the crosslinker comprises an iodine-containing polymer.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: August 6, 2024
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Jin Hong Park, Yoo-Jin Ghang, Suwoong Kim, You Rim Shin, Jung June Lee, Jae Hwan Sim
  • Patent number: 12049468
    Abstract: The present disclosure relates to a plurality of host materials comprising a compound represented by formula 1 and a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising the plurality of host materials comprising a specific combination of compounds, it is possible to provide an organic electroluminescent device having long lifespan characteristics.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: July 30, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Bitnari Kim, Su-Hyun Lee, Doo-Hyeon Moon, Hyo-Soon Park, Tae-Jun Han, Sang-Hee Cho
  • Patent number: 12041845
    Abstract: The present disclosure relates to an organic electroluminescent compound comprising a ligand represented by formula 1, and an organic electroluminescent device comprising the same. The organic electroluminescent device having a luminescent efficiency higher than a conventional organic electroluminescent device can be provided by comprising the organic electroluminescent compound of the present disclosure.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 16, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hyun Kim, Jeong-Hwan Jeon, Seon-Jin Hwang, Ga-Won Lee, Hong-Se Oh
  • Patent number: 12004420
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound, an organic electroluminescent device having a low driving voltage and/or a high luminous efficiency and/or a long lifespan can be provided.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: June 4, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Doo-Hyeon Moon, Su-Hyun Lee, Jin-Ri Hong, So-Young Jung, Dong-Hyung Lee, Sang-Hee Cho
  • Patent number: 11963439
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: April 16, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Eun-Joung Choi, Young-Kwang Kim, Su-Hyun Lee, So-Young Jung, YeJin Jeon, Hong-Se Oh, Dong-Hyung Lee, Jin-Man Kim, Hyun-Woo Kang, Mi-Ja Lee, Hee-Ryong Kang, Hyo-Nim Shin, Jeong-Hwan Jeon, Sang-Hee Cho
  • Patent number: 11950506
    Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as host materials, it is possible to provide an organic electroluminescent device having lower driving voltage, higher luminous efficiency, higher power efficiency, and/or superior lifespan characteristics compared to conventional organic electroluminescent devices.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: April 2, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: So-Young Jung, Su-Hyun Lee, Mi-Ja Lee, Sang-Hee Cho, Doo-Hyeon Moon
  • Patent number: 11930704
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure comprises a specific combination of an electron buffer material and an electron transport material which can provide high efficiency and/or long lifespan.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: March 12, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hee-Choon Ahn, Doo-Hyeon Moon, Sang-Hee Cho
  • Patent number: 11926591
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan characteristics can be provided.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: March 12, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hong-Se Oh, Jeong-Eun Yang, Tae-Jin Lee, Sang-Hee Cho
  • Patent number: 11917907
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: February 27, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
  • Patent number: 11912916
    Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having lower operating voltage, higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: February 27, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hyun Kim, Ji-Song Jun, Jeong-Hwan Jeon, Yeon-Gun Lee, Seon-Jin Hwang, Young-Jun Cho