Abstract: An organic electroluminescence device includes a first electrode and a second electrode which face each other, and a plurality of organic layers between the first electrode and the second electrode, where at least one of the organic layers includes an amine compound represented by Formula 1, and the organic electroluminescence device may exhibit improved luminous efficiency:

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, a light-emitting layer on the hole transport region, an electron transport region on the light-emitting layer, and a second electrode on the electron transport region. The hole transport region includes an amine compound represented by Formula 1.

Abstract: An organic electroluminescence device (OLED) of an embodiment includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, and an electron transport region on the emission layer.

Abstract: Provided are an amine compound represented by Formula 1 and an organic light-emitting device including the same. The organic light-emitting devices includes: 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 at least one amine compound represented by Formula 1.

Abstract: A light-emitting device includes a heterocyclic compound represented by Formula 1: The heterocyclic compound represented by Formula 1 may have a high glass transition temperature (Tg) and/or melting point for excellent thermal resistance, and excellent hole injectability and/or transportability. Accordingly, the light-emitting device may have excellent luminance, luminescence efficiency, lifespan, and/or driving voltage.

Abstract: A light emitting diode 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. The hole transport region includes a first hole transport layer disposed adjacent to the first electrode and having a first refractive index, a second hole transport layer disposed adjacent to the emission layer and having a second refractive index, and a third hole transport layer disposed between the first hole transport layer and the second hole transport layer and having a third refractive index which is greater than each of the first refractive index and the second refractive index, thereby showing high light extraction efficiency and high emission efficiency properties.

Abstract: An organic electroluminescence device includes a first electrode and a second electrode facing each other, and a plurality of organic layers between the first electrode and the second electrode, wherein at least one of the organic layers includes an amine compound represented by Formula 1 below. The organic electroluminescence device may have improved luminous efficiency.

Abstract: An organic electroluminescence device includes a first electrode, a second electrode facing the first electrode, and a plurality of organic layers between the first electrode and the second electrode, wherein at least one of the plurality of organic layers includes an amine compound, the amine compound includes a central nitrogen atom, a carbazole group substituted to the central nitrogen atom, and a dibenzoselenophene group substituted to the central nitrogen atom, and a nitrogen atom of the carbazole group is substituted with a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group. The organic electroluminescence device thereby has high efficiency and long-life.

Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a second electrode facing the first electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one organic layer of the plurality of organic layers includes an amine compound containing a fluorene group; an aryl group having 6 to 60 ring-forming carbon atoms, which is substituted to the fluorene group; a heteroaryl group having 2 to 60 ring-forming carbon atoms, which is substituted to the fluorene group; and at least one amine group, which is substituted to the fluorene group; wherein all the carbons of the aryl group are substituted with deuterium, and the organic electroluminescence device exhibits high efficiency and a long service life.

Abstract: A compound is represented by Formula 1, where the substitents are as defined in the detailed description. An organic light-emitting device including the compound has high efficiency and improved lifespan compared to an organic light-emitting device including a compound of the related art.

Abstract: An organic light-emitting device includes a condensed cyclic compound represented by Formula 1, where at least one of X4 to X11 is C(Rx), and Rx is a group represented by Formula 2: The condensed cyclic compound represented by Formula 1 has a planar conformation because of the single bond linking the 8 and 8? positions of the spirobifluorene moiety. Accordingly, the condensed cyclic compound may provide the organic light-emitting device with suitable hole mobility and thermal stability.

Abstract: An organic light-emitting device includes a heterocyclic compound represented by Formula 1 In Formula 1, X is O or S, one selected from R1 to R8 is a group represented by Formula 2-1, and one selected from the remaining groups is a group represented by Formula 2-2, wherein, when X is O, one selected from R1, R2, R4, R5, R7, and R8 is a group represented by Formula 2-1.

Abstract: A compound according to an embodiment of the present disclosure is represented by Formula 1: When the compound is used in an organic light-emitting device, efficiency is higher as compared to when existing compounds in the art are used. In particular, the compound shows a remarkable effect of lifespan improvement, resulting in a significantly increased lifespan of the organic light-emitting device including the compound.

Abstract: An organic light-emitting device includes: 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, wherein the organic layer includes the compound of Formula 1: When the compound of Formula 1 is used in an organic light-emitting device, the organic light-emitting device may have high-efficiency characteristics as compared to a case where a compound of the related art is used, resulting particularly in excellent lifespan improvement effects, and accordingly, significantly improved lifespan.

Abstract: A heterocyclic compound is represented by Formula 1. An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and comprising an emission layer, wherein the organic layer comprises at least one of the heterocyclic compound represented by Formula 1.

Abstract: An organic electroluminescence device of an embodiment includes a first electrode and a second electrode which are faced to each other, and a plurality of organic layers between the first electrode and the second electrode, and at least one organic layer selected from among the organic layers includes an amine compound represented by Formula 1 below, and thus, the organic electroluminescence device can exhibit improved emitting efficiency and long device lifespan.