Abstract: A light emitting element of one or more embodiments includes a first electrode, a second electrode oppositely to the first electrode, and an emission layer between the first electrode and the second electrode. The light emitting element of one or more embodiments includes a polycyclic compound represented by a specific chemical structure in the emission layer, thereby showing improved emission efficiency and life characteristics.

Abstract: Embodiments provide a light emitting element which includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound represented by Formula 1, which is explained in the specification.

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the emission layer includes a polycyclic compound containing one electron donor and one electron acceptor, and the electron donor includes an azaborine group and the electron acceptor includes any one of a cyano group, a carbonyl group, a boron group, a sulfonyl group, a sulfinyl group, a phosphine oxide group, a nitrogen-containing five-membered ring, or a nitrogen-containing six-membered monocyclic ring.

Abstract: An organic electroluminescence device of one or more embodiments 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 emission layer includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency: wherein at least one of n1 to n6 is 1.

Abstract: An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a condensed cyclic compound represented by Formula 1, and the organic electroluminescence device exhibits high efficiency characteristics.

Abstract: A light emitting device includes an emission layer disposed between electrodes. The emission layer includes a host and a delayed fluorescence dopant.

Abstract: A light emitting device of an embodiment includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer may include a polycyclic compound of an embodiment represented by Formula 1. The light emitting device including the polycyclic compound of an embodiment may show improved efficiency and device life.

Abstract: A light emitting element includes a first electrode, a second electrode, and at least one functional layer which is disposed between the first electrode and the second electrode and includes a compound represented by Formula 1 below, thereby exhibiting high efficiency characteristics. The compound of Formula 1 may be included in the emission layer of the light emitting element as a dopant.

Abstract: An organic electroluminescence device having high luminous efficiency includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the emission layer includes a polycyclic compound represented by Formula 1.

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. The emission layer includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency.

Abstract: Provided is an organic electroluminescence device including 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 emission layer includes a polycyclic compound represented by Formula 1, and thus the organic electroluminescence device exhibits high luminous efficiency.

Abstract: An organic electroluminescence device of one or more embodiments 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 first electrode and the second electrode each independently includes at least one selected among Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, Zn, compounds thereof, mixtures thereof, and oxides thereof, and the emission layer includes a polycyclic compound represented by Formula 1, thereby showing long life and high efficiency:

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 emission layer includes a polycyclic compound represented by Formula 1, thereby exhibiting high emission efficiency.

Abstract: A fused polycyclic compound of an embodiment is represented by Formula 1, which is defined in the disclosure. An organic electroluminescence device is also provided. The organic electroluminescence device includes a first electrode, a second electrode facing the first electrode, and organic layers disposed between the first electrode and the second electrode. At least one of the organic layers includes the fused polycyclic compound represented by Formula 1, thereby providing improved luminous efficiency to the organic electroluminescence device.

Abstract: An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound represented by Formula 1, thereby showing improved emission efficiency.

Abstract: An organic electroluminescence device of one or more embodiments 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 emission layer includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency: wherein at least one of n1 to n6 is 1.

Abstract: An organic electroluminescence device exhibiting high light emission efficiency is provided, which includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer may include a compound represented by Formula 1.

Abstract: An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a condensed cyclic compound represented by Formula 1, and the organic electroluminescence device exhibits high efficiency characteristics.

Abstract: An organic electroluminescence device having high luminous efficiency includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the emission layer includes a polycyclic compound represented by Formula 1.

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the emission layer includes a polycyclic compound containing one electron donor and one electron acceptor, and the electron donor includes an azaborine group and the electron acceptor includes any one of a cyano group, a carbonyl group, a boron group, a sulfonyl group, a sulfinyl group, a phosphine oxide group, a nitrogen-containing five-membered ring, or a nitrogen-containing six-membered monocyclic ring.