Abstract: The present disclosure provides a curable silicone composition comprising: (A) at least one resinous organopolysiloxane having at least two alkenyl groups and at least one aryl group per molecule; (B) at least one organohydrogen polysiloxane having at least two silicon-bonded hydrogen atoms per molecule; (C) at least one inorganic filler having a reflective index of 1.50 or higher; (D) two or more polyether-modified organopolysiloxane comprising a combination of (d-1) at least one polyether-modified organopolysiloxane having at least one terminal —OH group in a polyether chain, and (d-2) at least one polyether-modified organopolysiloxane having at least one terminal alkoxy or acyloxy group in a polyether chain; and (E) at least one hydrosilylation catalyst. A sealing material formed from the curable silicone composition, and an optical semiconductor device comprising the sealing material are also disclosed.

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 of the present disclosure as host materials, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or longer lifetime properties as compared with a conventional organic electroluminescent device.

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1, a plurality of host materials comprising a combination of specific compounds, and an organic electroluminescent device comprising the same. The organic electroluminescent device having improved driving voltage, luminous efficiency and/or lifespan properties can be provided by including the organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material(s).

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 2? or formula 2?, a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. An organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifespan properties can be provided by including the organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material(s).

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, luminous efficiency, and/or lifespan characteristics can be provided.

Abstract: A monomer represented by Chemical Formula (1): wherein, X, Y, and Z are the same as described in the specification, and the polymer including repeat units derived from the monomer.

Abstract: An organometallic compound represented by Chemical Formula 1, Ir(LA)m(LB)n, and an organic light-emitting diode including the same. The organometallic compound may act as a dopant of a light-emitting layer of the organic light-emitting diode. An operation voltage of the device may be lowered, and luminous efficiency and a lifespan thereof may be improved.

Abstract: An organometallic compound represented by Chemical Formula 1, Ir(LA)m(LB)n, and an organic light-emitting diode including the same. The organometallic compound may act as a dopant of a light-emitting layer of the organic light-emitting diode. An operation voltage of the device may be lowered, and luminous efficiency and a lifespan thereof may be improved.

Abstract: An organometallic compound represented by Chemical Formula 1, Ir(LA)m(LB)n, and an organic light-emitting diode including the same. The organometallic compound may act as a dopant of a light-emitting layer of the organic light-emitting diode. An operation voltage of the device may be lowered, and luminous efficiency and a lifespan thereof may be improved.

Abstract: A UV curable silicone composition has exceptional curability by ultraviolet irradiation.