Abstract: An ink composition for an organic light-emitting device, the ink composition including a luminescent host material and a solvent, wherein the luminescent host material includes at least one compound represented by Formula (1) and Formula (3), and wherein the solvent includes at least one selected from an aromatic ether, an aromatic ester, and an aromatic ketone: wherein, in Formulas (1) and (3), groups and variables are the same as described in the specification.

Abstract: The organic electroluminescence device includes an anode, a cathode, and at least an emitting layer between the anode and the cathode. The emitting layer includes a first host material, a second host material, and a phosphorescent dopant material. The first host material is a compound represented by a formula (1) below and the second host material is a compound represented by a formula (2) below.

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: A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound: L1 to L4, L11, a1 to a4, a11, Ar1, Ar2, Ar11, R1 to R7, R11 to R12, b1 to b7, and b11 to b12 are described in the specification.

Abstract: Provided are a charge transport material represented by Formula 1, a composition including the charge transport material, and an organic light-emitting device including the composition

Abstract: An organic light-emitting device comprising: a first electrode; a second electrode; and an emission layer between the first electrode and the second electrode, wherein the emission layer comprising a first compound, a second compound, and a third compound, the first compound comprising at least one compound represented by one of Formulae 1-1 to 1-4, the second compound comprising at least one compound represented by one of Formulae 2-1 to 2-4, and the third compound includes at least one of a triphenylene group, a dibenzofuran group, a dibenzothiophene group, a fluorene group, a biscarbazole group, or any combination thereof, wherein a band gap between a highest occupied molecular orbital (HOMO) band energy level and a lowest unoccupied molecular orbital (LUMO) band energy level of the third compound is 3.3 eV or more. Formulae 1-1 to 1-4 and Formulae 2-1 to 2-4 are described herein.

Abstract: A heterocyclic compound, a composition including the heterocyclic compound, and an organic light-emitting device including the heterocyclic compound are disclosed. The heterocyclic compound is represented by Formula 1: wherein, X1, L1, a1, Ar1, R1 to R6, b3, b4, and b5 are described herein.

Abstract: A polymer material includes a structural unit represented by Chemical Formula 1 X—Y ??Chemical Formula 1 wherein, in Chemical Formula 1, X and Y are as defined herein.

Abstract: A condensed cyclic compound represented by Formula (1): wherein, in Formula (1), groups and variables are the same as described in the specification.

Abstract: Anthracene derivatives each having a structure including an anthracene skeleton, a phenanthrene skeleton selected from among various phenanthrene skeletons different in bonding site which is bonded to the 9-position of the anthracene skeleton and a group selected from among various aryl groups and so on which is bonded to the 10-position of the anthracene skeleton. Organic EL devices made by using the derivatives exhibit high light emission efficiency and a long life.

Abstract: Anthracene derivatives each having a structure including an anthracene skeleton, a phenanthrene skeleton selected from among various phenanthrene skeletons different in bonding site which is bonded to the 9-position of the anthracene skeleton and a group selected from among various aryl groups and so on which is bonded to the 10-position of the anthracene skeleton. Organic EL devices made by using the derivatives exhibit high light emission efficiency and a long life.

Abstract: A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.

Abstract: Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

Abstract: A heterocyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.

Abstract: A polymer material includes a structural unit represented by Chemical Formula 1 ?X—Y? ??Chemical Formula 1 wherein, in Chemical Formula 1, X and Y are as defined herein.

Abstract: A bicarbazole compound represented by Formula 1: [Ar1]n1-(L1)a1-[Ar2]n2??Formula 1 wherein in Formula 1, a1, Ar1, Ar2, L1, n1, and n2 are the same as described in the specification.

Abstract: A heterocyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.

Abstract: A condensed cyclic compound represented by Formula 1 and including 9 to 60 aromatic rings: wherein A, L, and n are the same as described in the specification.

Abstract: A heterocyclic compound represented by Formula 1: (A)n-L, ??Formula 1 wherein, in Formula 1, A, L, and n are the same as described in the specification.

Abstract: Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.