Abstract: A novel organic compound is provided. A novel organic compound having a carrier-transport property is provided. A novel organic compound having a hole-transport property is provided. An organic compound having a low refractive index is provided. An organic compound having a low refractive index and a carrier-transport property is provided. An organic compound having a low refractive index and a hole-transport property is provided. An organic compound represented by the following general formula (G1) is provided.
Type:
Grant
Filed:
May 9, 2019
Date of Patent:
April 23, 2024
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
Inventors:
Tomohiro Kubota, Takeyoshi Watabe, Satoshi Seo, Nobuharu Ohsawa
Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the hole transport region includes a diamine compound represented by Formula 1, thereby showing high emission efficiency:
Abstract: Provided is an organometallic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device. M(L1)n1(L2)n2??<Formula 1> M, L1, L2, n1, and n2 in Formula 1 are the same as described in the present specification.
Abstract: Provided are a heterocyclic compound represented by Formula 1 and an organic light-emitting device including the same. The organic light-emitting device may include a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode and including an emission layer, and the organic light-emitting device may include at least one of the heterocyclic compound.
Type:
Grant
Filed:
November 19, 2020
Date of Patent:
March 26, 2024
Assignee:
Samsung Display Co., Ltd.
Inventors:
Yeseul Lee, Soobyung Ko, Hyeongmin Kim, Heechoon Ahn, Hyunah Um, Yirang Im
Abstract: A two-part curable adhesive composition includes a main agent (A) containing a urethane prepolymer (a1) and a remaining polyisocyanate (a2), and a curing agent (B) containing a non-crystalline polyol compound (b1) and a polyamine compound (b2). An equivalent ratio of an isocyanate group in a raw polyisocyanate to a hydroxyl group in the polyol compound is from 2.05 to 12. The equivalent ratio of the isocyanate group in the main agent (A) to an amino group in the polyamine compound (b2) is from 1.2 to 6. The equivalent ratio of the isocyanate group in the main agent (A) to the hydroxyl group in the non-crystalline polyol compound (b1) is from 2 to 12.
Abstract: A composition for an organic photoelectronic device, an organic photoelectronic device, and a display device, the composition comprising a first compound represented by Chemical Formula 1, and a second compound represented by Chemical Formula 2:
Type:
Grant
Filed:
March 17, 2021
Date of Patent:
March 19, 2024
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Byungku Kim, Junmo Park, Min Seok Seo, Namheon Lee, Mijin Lee, Kipo Jang, Sung-Hyun Jung, Eunjeong Choi
Abstract: An adhesive composition for use in debonding with light irradiation, which composition can achieve debonding through irradiation with light, characterized in that the adhesive composition contains an adhesive component (S) and a light-absorbing organic compound (X); and the light-absorbing organic compound (X) contains, in the molecule thereof, one or more aromatic rings, one or more rings each containing a heteroatom forming the ring, and one or more groups selected from among a carbonyl group and a thiocarbonyl group.
Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the hole transport region includes a diamine compound represented by Formula 1, thereby showing high emission efficiency:
Abstract: The present invention relates to novel high-value polycarbonate polyols, to processes for the production thereof, to polyisocyanate prepolymers obtainable therefrom and also polyurethane (PUR) and polyurethane urea elastomers which under particularly demanding applications show unique combinations of processing characteristics, hydrolysis and oxidation stability, mechanical and dynamic mechanical properties.
Type:
Grant
Filed:
December 12, 2018
Date of Patent:
March 12, 2024
Assignee:
Covestro Deutschland AG
Inventors:
Hartmut Nefzger, Harald Knaup, Hans-Peter Huber, Andreas Stumpf, Stephan Reiter
Abstract: A condensed cyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the condensed cyclic compound: wherein R1-R6, L1-L2, Ar1, n1, a1-a2, and b3-b6 are described in the specification.
Abstract: Disclosed is a polycyclic aromatic compound that can be employed in an organic layer of an organic electroluminescent device. Also disclosed is a highly efficient organic electroluminescent device including the polycyclic aromatic compound. The use of the polycyclic aromatic compound significantly improves the luminous efficiency of the device.
Type:
Grant
Filed:
March 19, 2021
Date of Patent:
March 5, 2024
Assignee:
SFC CO., LTD.
Inventors:
Kyeong-hyeon Kim, Se-jin Lee, Yeong-tae Choi, Ji-yung Kim, Kyung-tae Kim, Myeong-jun Kim
Abstract: An object of the present invention is to provide an organic compound that has excellent properties, with excellent hole injection and transport performance, electron blocking capability, and high stability in a thin film state, and furthermore to provide a highly efficient and highly durable organic EL device by using this compound. The present invention relates to a compound having a triarylamine structure and being represented by the structural formula (A-1) below, where A, B, and C may be the same or different, and each represent a group represented by the structural formula (B-1) below, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group, where at least one of A, B, and C is not the group represented by the structural formula (B-1) below. (For the symbols and the like in the formulae, see the descriptions in the specification.
Type:
Grant
Filed:
June 20, 2019
Date of Patent:
March 5, 2024
Assignee:
HODOGAYA CHEMICAL CO., LTD.
Inventors:
Takuya Uehara, Kouki Kase, Kyung-Hwa Park, Yuta Hirayama
Abstract: An aqueous dispersion comprising a silicone-acrylic polymer with reduced coagulum, a process of preparing the aqueous dispersion, and an aqueous coating composition comprising the aqueous dispersion and providing coatings with improved corrosion resistance.
Type:
Grant
Filed:
July 12, 2018
Date of Patent:
February 27, 2024
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Baoqing Zheng, Yan Wu, Jia Tang, James C. Bohling, Juan Zhao, Yujiang Wang
Abstract: A novel compound having excellent light emission and heat stability is disclosed. Also disclosed is an organic electroluminescent device having properties such as light emitting efficiency, an operation voltage, and a service life improved by including the compound in at least one organic layer of the device.
Type:
Grant
Filed:
July 12, 2019
Date of Patent:
February 27, 2024
Assignee:
SOLUS ADVANCED MATERIALS CO., LTD.
Inventors:
Hyungchan Bae, Young Bae Kim, Hoe Moon Kim, Ho Jun Son, Jin Woong Kim
Abstract: An OLED structure including a first organic layer disposed between the anode and the cathode is disclosed. The first organic layer includes a primary phosphorescent emitter and a first host, and where one of the following conditions is true: (1) the first organic layer further includes a secondary emitter; or (2) the OLED further includes a second organic layer disposed between the anode and the cathode, wherein the second organic layer includes a secondary emitter. The phosphorescent emitter has a peak emission wavelength ?max that is ?600 nm and ?750 nm, the secondary emitter has a peak emission wavelength ?max that is ?750 nm, and the first host has a lowest excited state triplet energy T1 that is at least 0.1 eV higher than that of the primary phosphorescent emitter.
Type:
Grant
Filed:
October 12, 2018
Date of Patent:
February 20, 2024
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Eric A. Margulies, Zhiqiang Ji, Nicholas J. Thompson, Geza Szigethy, Michael S. Weaver, Jerald Feldman
Abstract: The invention relates to a silicone rubber composition having specific dielectric properties which can be used as insulator material in high voltage direct current applications and a method for the manufacture of cable accessories like cable joints. The invention comprises as well a method for the determination of the optimum dielectric properties and the related amount of dielectric active additives.
Type:
Grant
Filed:
July 15, 2020
Date of Patent:
February 20, 2024
Assignee:
Momentive Performance Materials GmbH
Inventors:
Beatrice Grau, Lada Bemert, Harry Zumaque, Oliver Safarowsky
Abstract: The production of SiOC-bonded, linear polydimethylsiloxane-polyoxyalkylene block copolymers comprising repeating (AB) units by reaction of polyether diols with trifluoromethanesulfonic acid-acidified, equilibrated ?,?-diacetoxypolydimethylsiloxanes is described, wherein the reaction is undertaken by adding a solid, liquid or gaseous base, optionally using inert solvents.
Abstract: A composition and a method for preparing a polymer composite article. The composition comprises (A) a filler in an amount of from 10 to 90 wt. The composition also comprises (B) a polymer in an amount of from 10 to 90 wt. %, wherein the (B) polymer is selected from polyolefins, polyamides, polyesters, or combinations thereof. Further, the composition comprises (C) an organopolysiloxane in an amount of from greater than 0 to 10 wt. %; the (C) organopolysiloxane having at least one silicon-bonded hydroxyl group and a viscosity of from 1,000 to 60,000 mPa·s at 25° C. The ranges for components (A)-(C) are based on the total weight of components (A), (B) and (C) in the composition.
Type:
Grant
Filed:
November 17, 2021
Date of Patent:
January 30, 2024
Assignees:
Dow Silicones Corporation, Dow Global Technologies LLC
Inventors:
Keith Bruce, Igor Chorvath, Marc-Andre Courtemanche, Jon V. Degroot, Jr., Sean Gaal, Craig Gross, James Keenihan, Shawn Mealey, Scott Miller, Tom Parsons, Andrew Schlader, Cristina Serrat, Lauren Tonge