Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure provides an organic electroluminescent device having a remarkably improved lifespan.
Type:
Grant
Filed:
December 1, 2016
Date of Patent:
January 28, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: The present disclosure relates to an organic electroluminescence device. The organic electroluminescence device of the present disclosure comprises a specific combination of a host compound and a hole transport material which can provide excellent lifespan characteristics.
Type:
Application
Filed:
October 13, 2017
Publication date:
January 23, 2020
Applicant:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Dong-Hyung LEE, Tae-Jin LEE, Bitnari KIM
Abstract: The present invention relates to a colored photosensitive resin composition capable of forming a cured film that does not generate uneven wrinkles on its surface at the time of its formation, and a light shielding spacer produced therefrom and used for a liquid crystal display, an organic EL display, or the like.
Type:
Grant
Filed:
October 12, 2017
Date of Patent:
January 14, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Hyung-Tak Jeon, Ji Ung Kim, Kyung-Jae Park, Jong-Ho Na, Hyung Gu Kim, Seok-Bong Park
Abstract: In a preferred aspect, organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise 1) one or more glycidyl groups; and 2) one or more aromatic groups that each comprises two or more substituents that comprise hydroxy, thiol and/or amine moieties. Catechol-containing polymers and methods for producing same also are provided.
Type:
Grant
Filed:
November 29, 2016
Date of Patent:
January 7, 2020
Assignee:
Rohm and Haas Electronics Materials Korea Ltd.
Inventors:
Jae Hwan Sim, Jung Kyu Jo, EunHye Cho, Hye-Won Lee, Jin Hong Park, Eui-Hyun Ryu, Jae-Bong Lim
Abstract: The present disclosure relates to organic electroluminescent compounds, and a host material, an electron buffer material, an electron transport material and an organic electroluminescent device comprising the same. By using the organic electroluminescent compounds of the present disclosure, the organic electroluminescent device secures fast electron current properties by intermolecular stacking and interaction, and thus, it is possible to provide the organic electroluminescent device having low driving voltage and/or excellent luminous efficiency and/or efficient lifespan properties.
Type:
Grant
Filed:
September 20, 2016
Date of Patent:
January 7, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: Topcoat compositions are provided that are suitably applied above a photoresist composition. Preferred topcoat compositions comprise a first polymer that comprises (i) first units comprising a nitrogen-containing moiety that comprises an acid-labile group; and (ii) second units that (1) comprise one or more hydrophobic groups and (2) are distinct from the first units.
Type:
Grant
Filed:
April 29, 2016
Date of Patent:
December 24, 2019
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: New photoresists are provided that are useful in a variety of applications, including negative-tone development processes. Preferred resists comprise a first polymer that comprises (i) first units comprising a nitrogen-containing moiety that comprises an acid-labile group; and (ii) second units that (1) comprise one or more hydrophobic groups and (2) are distinct from the first units.
Type:
Grant
Filed:
April 29, 2016
Date of Patent:
December 10, 2019
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Eui-Hyun Ryu, Min-Kyung Jang, Chang-Young Hong, Dong-Yong Kim, Dong-Je Hong, Hae-Jin Lim, Myung Yeol Kim, Hyun Jeon
Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer disposed between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant, wherein the host comprises a plurality of host compounds, wherein at least a first host compound of the plurality of host compounds has an amine-carbazole structure substituted with naphthyl-phenyl and aryl (Formula 1), and a second host compound has a di-C-benzocarbazole structure comprising nitrogen-containing heteroaryl (Formula 2). By using the plurality of host compounds of the present disclosure, the organic electroluminescent device may have long lifespan while maintaining high efficiency at high luminance compared to the conventional organic electroluminescent device using a sole host compound.
Type:
Grant
Filed:
April 25, 2016
Date of Patent:
November 26, 2019
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Bitnari Kim, Hee-Ryong Kang, Young-Mook Lim, Jin-Ri Hong, Tae-Jin Lee, Sang-Hee Cho
Abstract: The present invention relates to a colored photosensitive resin composition and to a light shielding spacer prepared therefrom. The colored photosensitive resin composition comprises an oxime ester fluorene-based compound as a photopolymerization initiator in a small amount, which is capable of forming a cured film that is excellent in terms of such properties as sensitivity, elastic recovery rate, resolution, chemical resistance, exudation resistance, voltage holding ratio, and the like. Accordingly, a light shielding spacer prepared therefrom can be advantageously used for a liquid crystal display, an organic EL display, and the like.
Type:
Grant
Filed:
October 18, 2017
Date of Patent:
November 19, 2019
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Kyung-Jae Park, Ji Ung Kim, Hyung-Tak Jeon
Abstract: The present disclosure relates to a host material and an organic electroluminescent device comprising the same. By using a specific combination of two or more host compounds according to the present disclosure, the organic electroluminescent device of the present disclosure has luminous efficiency at least equivalent to or higher than conventional devices and has lifespan better than conventional devices.
Type:
Grant
Filed:
November 1, 2016
Date of Patent:
October 22, 2019
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: The present invention relates to a polymeric charge transfer layer comprising a polymer and a p-dopant. The polymer comprises as polymerized units, Monomer A, Monomer B, and Monomer C crosslinking agent. The present invention further relates to an organic electronic device, especially an organic light emitting device containing the polymeric charge transfer layer.
Type:
Grant
Filed:
January 8, 2015
Date of Patent:
October 22, 2019
Assignees:
Dow Global Technologies LLC, Rohm and Haas Electronic Materials Korea Ltd., Rohm and Haas Electronic Materials LLC
Inventors:
Liam P. Spencer, Hong-Yeop Na, Yoo-Jin Doh, Chun Liu, Minrong Zhu, Jichang Feng, Zhengming Tang, Shaoguang Feng, Kenneth L. Kearns, Jr., Timothy De Vries, Sukrit Mukhopadhyay, John W. Kramer, Peter Trefonas, III, David D. Devore, William H. H. Woodward
Abstract: Polymeric reaction products of certain aromatic alcohols with certain diaryl-substituted aliphatic alcohols are useful as underlayers in semiconductor manufacturing processes.
Type:
Grant
Filed:
April 7, 2016
Date of Patent:
August 13, 2019
Assignees:
Rohm and Haas Electronic Materials LLC, 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 using the organic electroluminescent compound according to the present disclosure, it is possible to produce an organic electroluminescent device which has a low driving voltage, excellent current and power efficiencies, and improved operation lifespan.
Type:
Grant
Filed:
August 8, 2017
Date of Patent:
June 11, 2019
Assignee:
ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD
Inventors:
Hyun-Ju Kang, Hee-Ryong Kang, Young-Gil Kim, Chi-Sik Kim, Seon-Woo Lee, Jeong-Eun Yang, Hee-Choon Ahn, Kyoung-Jin Park, Tae-Jin Lee
Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure provides an organic electroluminescent device having high efficiency and/or long lifespan.
Type:
Application
Filed:
March 16, 2017
Publication date:
May 16, 2019
Applicant:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: New photobase generators suitable for use in photoresists are provided that correspond to Formula (I): X1—R1—O—C(?O)N(R2)R3??(I) wherein X1 is an optionally substituted aromatic group; R1 is a linker; and R2 and R3 are the same or different optionally substituted linear, branched or cyclic aliphatic group or an optionally substituted aromatic group, wherein at least one of R2 and R3 is an optionally substituted branched alkyl group having 4 or more carbon atoms.
Type:
Grant
Filed:
May 12, 2016
Date of Patent:
April 30, 2019
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Min-Kyung Jang, Eui Hyun Ryu, Chang-Young Hong, Myung Yeol Kim, Jung-June Lee, Dong Je Hong, Dong-Yong Kim, Hae-Jin Lim, Jae Yun Ahn, Ohk-Min Jeon
Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present disclosure is capable of producing an organic electroluminescent device with reasonably improved color purity and efficiency.
Type:
Grant
Filed:
December 9, 2016
Date of Patent:
April 30, 2019
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: The present disclosure relates to a host material and an organic electroluminescent device comprising the same. By using a specific combination of two or more host compounds according to the present disclosure, the organic electroluminescent device of the present disclosure has luminous efficiency at least equivalent to or higher than conventional devices and has lifespan better than conventional devices.
Type:
Application
Filed:
November 1, 2016
Publication date:
March 7, 2019
Applicants:
Rohm and Haas Electronic Materials Korea Ltd., Rohm and Haas Electronic Materials Korea Ltd.
Abstract: Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise 1) one or more resins and 2) one or more substituted isocyanurate compounds that are distinct from the 1) one or more resins.
Type:
Grant
Filed:
September 30, 2016
Date of Patent:
February 12, 2019
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.