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 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 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 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
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: Disclosed herein is a photoresist composition comprising a first polymer comprising an acid labile group; a photoacid generator; and an acid diffusion control agent that comprises a tri-alkyl amide compound having a lipophilicity (log P) value that is greater than 11.
Type:
Grant
Filed:
September 15, 2021
Date of Patent:
January 16, 2024
Assignee:
ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Philjae Kang, Kwang Mo Choi, Yoo Jung Yoon, Won Seok Lee, Hae-Jin Lim
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:
October 28, 2016
Date of Patent:
November 21, 2023
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: A new luminescent material and an electroluminescent display device using the same are disclosed, in which the luminescent material includes a compound expressed by the following chemical formula 1 and may be used as a dopant of a light emitting layer of a green, yellow-green or red color:
Type:
Grant
Filed:
December 28, 2020
Date of Patent:
November 14, 2023
Assignees:
LG DISPLAY CO., LTD, ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
HeeJun Park, Jaemin Moon, Kusun Choung, Hee Ryong Kang, Hyun Kim, Ga Won Lee, Seung Hyun Yoon, Kyoung-Jin Park
Abstract: Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise that comprise a surface agent of the Formula (I). where A and B are each independently hydrogen, optionally substituted alkyl or optionally substituted aryl; X and Y are each independently hydrogen, optionally substituted alkyl or optionally substituted carbocyclic aryl; and n is a positive integer. Preferred coating compositions can provide improved pattern collapse margin of an overcoated photoresist layer.
Type:
Grant
Filed:
December 28, 2015
Date of Patent:
September 19, 2023
Assignee:
ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Sun-Jung Lee, Jihoon Kang, Dong-Je Hong
Abstract: Disclosed is a novel organometallic compound in which a main ligand (LA) has a fused ring structure including a thiophene group. The organometallic compound acts as a dopant of a phosphorescent light-emitting layer of an organic light-emitting diode. Thus, an operation voltage of the diode is lowered, and luminous efficiency and a lifespan thereof are improved.
Type:
Application
Filed:
December 23, 2022
Publication date:
June 29, 2023
Applicants:
LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Kusun CHOUNG, Gyuhyeong KIM, Yoojeong JEONG, Hansol PARK, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE
Abstract: Disclosed is a novel organometallic compound in which a main ligand (LA) has a fused ring structure including a thiophene group. The organometallic compound acts as a dopant of a phosphorescent light-emitting layer of an organic light-emitting diode. Thus, an operation voltage of the diode is lowered, and luminous efficiency and a lifespan thereof are improved.
Type:
Application
Filed:
December 23, 2022
Publication date:
June 29, 2023
Applicants:
LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Yoojeong JEONG, Hansol PARK, Kusun CHOUNG, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE
Abstract: Disclosed is a novel organometallic compound represented by following Chemical Formula 1. The organometallic compound acts as a dopant of a phosphorescent light-emitting layer of an organic light-emitting diode.
Type:
Application
Filed:
December 19, 2022
Publication date:
June 29, 2023
Applicants:
LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Hansol PARK, Yoojeong JEONG, Kusun CHOUNG, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE
Abstract: Disclosed is an organometallic compound represented by a following Chemical Formula 1. The organometallic compound acts as a dopant of a light-emitting layer of an organic light-emitting diode. Thus, operation voltage of the diode is lowered, and luminous efficiency and lifespan thereof are improved: Ir(LA)m(LB)n??[Chemical Formula 1] where in the Chemical Formula 1, LA represents a main ligand, and is one selected from a group consisting of Chemical Formula 2-1, Chemical Formula 2-2, and Chemical Formula 2-3, LB denotes an ancillary ligand represented by a Chemical Formula 3, each of m and n denotes a number of the ligands bound to Ir (iridium), and m is 1, 2 or 3, and n is 0, 1 or 2, and a sum of m and n is 3.
Type:
Application
Filed:
July 26, 2022
Publication date:
April 20, 2023
Applicants:
LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Kusun CHOUNG, Hansol PARK, Yoojeong JEONG, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE
Abstract: Disclosed is an organometallic compound represented by a following Chemical Formula 1. The organometallic compound acts as a dopant of a light-emitting layer of an organic light-emitting diode.
Type:
Application
Filed:
July 25, 2022
Publication date:
April 13, 2023
Applicants:
LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Kusun CHOUNG, Hansol PARK, Yoojeong JEONG, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE
Abstract: A method for forming a photoresist relief image including applying a layer of a coating composition on a substrate; and disposing a layer of a photoresist composition on the layer of the coating composition, wherein the coating composition comprises an amine-containing polymer comprising a hydrocarbon-substituted amino group and having nitrogen atoms in an amount from 3 to 47 weight percent, based on a total weight of the amine-containing polymer.
Type:
Grant
Filed:
October 15, 2019
Date of Patent:
January 31, 2023
Assignees:
ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD., ROHM AND HAAS ELECTRONIC MATERIALS LLC
Inventors:
Hye-Won Lee, Min Kyung Jang, Soo Jung Leem, Jae Hwan Sim, Emad Aqad
Abstract: A polymer comprising a first repeating unit including an amino group protected by an alkoxycarbonyl group; a second repeating unit including a nucleophilic group; and a third repeating unit including a crosslinkable group, wherein the first repeating unit, the second repeating unit, and the third repeating unit are different from each other.
Type:
Grant
Filed:
April 17, 2020
Date of Patent:
January 31, 2023
Assignee:
ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Jung June Lee, Suwoong Kim, Min Kyung Jang, Jin Hong Park, Jae Hwan Sim, Jae Bong Lim
Abstract: New composition and methods are provided that include antireflective compositions that can exhibit enhanced etch rates in standard plasma etchants. Preferred antireflective coating compositions of the invention have decreased carbon content relative to prior compositions.
Type:
Grant
Filed:
October 31, 2017
Date of Patent:
November 15, 2022
Assignee:
ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Abstract: An anti-reflective coating composition is provided. The anti-reflective coating composition of the present invention can be useful in preventing a pull-back phenomenon in which an anti-reflective coating layer tears on a corner of a pattern of a substrate during a heat curing process and improving gap-filling performance of the pattern since a crosslinker is attached to a polymer in the composition and the content of the low-molecular-weight crosslinker in the composition is minimized to regulate a heat curing initiation temperature.
Type:
Grant
Filed:
December 29, 2014
Date of Patent:
November 8, 2022
Assignee:
ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Inventors:
Jae Hwan Sim, So-Yeon Kim, Jung Kyu Jo, Hye-Won Lee, Jihoon Kang, Jae-Bong Lim, Jun-Han Yun