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.
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.
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
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.
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
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
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
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
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
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
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
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
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.
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.
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
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.
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
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
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
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