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:
Grant
Filed:
June 10, 2020
Date of Patent:
February 23, 2021
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: Provided is a composition comprising one or more phenanthroquinazoline-core compounds having structure (I) wherein each of R1 and R2 is independently a substituted or unsubstituted phenyl group.
Type:
Grant
Filed:
March 15, 2017
Date of Patent:
February 23, 2021
Assignees:
Dow Global Technologies LLC, Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Kyoung Moo Koh, Mark E. Ondari, Sukrit Mukhopadhyay, Timothy J. Gallagher, Hong-Yeop Na
Abstract: Disclosed herein are a photosensitive resin composition and a cured film prepared therefrom. The photosensitive resin composition introduces a siloxane polymer containing a fluorine atom which has strong water-repellency into a composition including a common siloxane polymer and an epoxy compound, and fluorine groups may be present in the whole region of the cured film so that the water-repellency due to a fluorine component may be maintained even after removing the surface of the cured film is removed via a dry etching process. As a result, the resistance (chemical resistance) to chemicals used in a post-processing can be maximizes to provide a cured film having excellent stability.
Type:
Grant
Filed:
September 22, 2016
Date of Patent:
January 12, 2021
Assignee:
Rohm and Haas Electronic Materials Korea Ltd
Inventors:
Jong-Ho Na, Geun Huh, Jin Kwon, Jong Han Yang
Abstract: The present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent material and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has excellent color purity, solubility, and thermal stability. By comprising the organic electroluminescent compound and the organic electroluminescent material of the present disclosure, an organic electroluminescent device showing low driving voltage, excellent current and power efficiencies, and significantly improved lifespan can be provided.
Type:
Grant
Filed:
September 25, 2015
Date of Patent:
January 5, 2021
Assignee:
Rohm and Haas Electronic Materials Korea Ltd
Abstract: Disclosed herein are a black photosensitive resin composition and a black column spacer prepared therefrom. The black photosensitive resin composition may form a cured film exhibiting good adhesion to a substrate, good height difference property, good surface roughness and high light shielding property (optical density), and may be effectively used for the formation of a cured film, particularly a black column spacer, of a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display.
Type:
Grant
Filed:
November 21, 2016
Date of Patent:
January 5, 2021
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Hyung Gu Jeong, Seok-Bong Park, Ji Ung Kim
Abstract: The present invention relates to a method for preparing a column spacer, and is characterized in using a mask including first, second, and third patterns having different light transmittance. In addition, according to the method for preparing a column spacer of the present invention, a taper angle between a matrix part and a spacer part may increase during manufacturing a column spacer in which the matrix part and the spacer part are continuously connected, and critical dimension of the spacer part may decrease. Therefore, a column spacer with fine patterns may be simply and efficiently manufactured.
Type:
Grant
Filed:
September 28, 2016
Date of Patent:
December 8, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd
Inventors:
Yeonok Kim, Seok-Bong Park, Gyung-Sik Choi, Su Min Lee
Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material, and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having low driving voltage, and/or excellent current and/or power efficiencies.
Type:
Grant
Filed:
November 18, 2016
Date of Patent:
December 1, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: The present invention relates to an electron transport material and an organic electroluminescent device comprising the material in an electron transport layer. The compounds according to the present invention as an organic electron transport material have faster electron transport property compared to a conventional electron transport material. Thus, a device comprising the compounds according to the present invention shows low driving voltage, high efficiency, and excellent lifespan property. Furthermore, the electron transport compounds have excellent color coordinate, and thus are effective in blue light-emitting.
Type:
Grant
Filed:
April 28, 2015
Date of Patent:
October 27, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Chi-Sik Kim, Jeong-Eun Yang, Young-Jun Cho, Kyung-Hoon Choi, Sang-Hee Cho, Jae-Hoon Shim, Hong-Yeop Na
Abstract: Acoustic wave sensors comprise: a piezoelectric layer, first and second electrodes arranged with the piezoelectric layer in a piezoelectric transducer circuit; and a polymeric sensing layer for adsorbing a gas-phase analyte, the adsorption of which analyte causes a change in resonant frequency of the piezoelectric transducer circuit, wherein the polymeric sensing layer comprises: (a) a polymer chosen from substituted or unsubstituted: polyarylenes comprising the reaction product of monomers comprising a first monomer comprising an aromatic acetylene group and a second monomer comprising a cyclopentadienone group; polyamides; polypyrazoles; or novolacs; or a cured product thereof; (b) a polymer chosen from substituted or unsubstituted: polyamic acids; or polyamic acid-polyimide copolymers; (c) a polymer formed from one or more monomers comprising a monomer comprising a polar group-substituted arylcyclobutene group, or a cured product thereof; or (d) a polymer comprising polymerized units of a monomer chosen fr
Type:
Grant
Filed:
January 8, 2019
Date of Patent:
October 6, 2020
Assignees:
Rohm and Haas Electronic Materials LLC, Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Christopher Gilmore, Aaron A. Rachford, Hee Jae Yoon, Jaclyn Murphy, Peter Trefonas, III, Deyan Wang
Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having excellent luminous properties can be produced.
Type:
Grant
Filed:
March 20, 2017
Date of Patent:
October 6, 2020
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 comprise that comprise a crosslinker component that comprises a structure of the following Formula (I):
Type:
Grant
Filed:
August 31, 2016
Date of Patent:
September 29, 2020
Assignees:
Rohm and Haas Electronic Materials LLC, Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Matthew Grandbois, Myung Yeol Kim, Eui Hyun Ryu, Jae Hwan Sim, Min Kyung Jang, Jung-June Lee
Abstract: Provided is a composition comprising one or more phenanthroquinazoline-core compounds having structure (I) wherein each of R1 and R2 is independently a substituted or unsubstituted phenyl group.
Type:
Application
Filed:
March 15, 2017
Publication date:
September 24, 2020
Applicants:
Dow Global Technologies LLC, Rohm and Haas Electronic Materials Korea Ltd., Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Kyoung Moo Koh, Mark E. Ondari, Sukrit Mukhopadhyay, Timothy J. Gallagher, Hong-Yeop Na
Abstract: The present disclosure relates to a plurality of host materials and organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host materials, the organic electroluminescent device of the present disclosure can show long lifespan while maintaining high luminous efficiency.
Type:
Grant
Filed:
February 2, 2016
Date of Patent:
August 18, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd
Inventors:
Bitnari Kim, Sang-Hee Cho, Hee-Ryong Kang, Jin-Ri Hong
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, to thereby minimize spots on the display screen that may be generated by a defect in the gap between the upper and lower plates during their assembly, with the formation of an excellent step difference and a pattern in a high resolution; and to a light shielding spacer produced therefrom and used for a liquid crystal display, an organic EL display, or the like.
Type:
Grant
Filed:
May 31, 2018
Date of Patent:
August 18, 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
Abstract: The present invention relates to a colored photosensitive resin composition that prevents the generation of uneven wrinkles when a cured film is formed, to thereby prevent spots that may be generated on the edges of a display upon the formation thereof, and has a short development time. Accordingly, the colored photosensitive resin composition can be advantageously used as a material for forming a protective film, an interlayer insulating film, a light shielding spacer such as a black column spacer, and the like to be employed in various electronic parts inclusive of a liquid crystal display (LCD) panel and an organic light emitting diode (OLED) display panel.
Type:
Grant
Filed:
May 29, 2018
Date of Patent:
August 18, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd
Inventors:
Ji Ung Kim, Hyung-Tak Jeon, Kyung-Jae Park, Jong-Ho Na, Hyung Gu Kim
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:
Grant
Filed:
March 16, 2017
Date of Patent:
July 28, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Abstract: Disclosed herein are a photosensitive resin composition and a cured film prepared therefrom. By comprising a copolymer (A) and a photopolymerizable compound (B) in specific amounts, a photosensitive resin composition may form a cured film having pattern developability with high resolution and good elasticity recovery rate. The composition may be effectively used for the formation of a cured film, particularly a spacer of a display device such as a liquid crystal display and an organic electroluminescence device.
Type:
Grant
Filed:
September 30, 2016
Date of Patent:
May 19, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd
Inventors:
Hyung-Tak Jeon, Seok-Bong Park, Gyung-Sik Choi
Abstract: The present disclosure relates to novel organic electroluminescent compounds and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, the organic electroluminescent device may improve driving lifespan while maintaining equal or greater efficiency compared to conventional devices.
Type:
Grant
Filed:
October 22, 2015
Date of Patent:
April 28, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Su-Hyun Lee, Hee-Choon Ahn, Young-Mook Lim, Bitnari Kim, Tae-Jin Lee
Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having low driving voltage, high luminous efficiency, and or excellent lifespan characteristic can be produced.
Type:
Grant
Filed:
July 27, 2017
Date of Patent:
April 28, 2020
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. The organic electroluminescent compound of the present disclosure has a high glass transition temperature that can be used in a deposition process. In addition, an organic electroluminescent device having low driving voltage, a high luminous efficiency and/or long lifespan characteristic can be provided with the use of the organic electroluminescent compound according to the present disclosure.
Type:
Grant
Filed:
December 12, 2017
Date of Patent:
April 21, 2020
Assignee:
Rohm and Haas Electronic Materials Korea Ltd