Organic Electroluminescent Element, and Light Emitting Device, Display Device and Lighting Device Each Using Organic Electroluminescent Element

摘要

An organic electroluminescent element containing a light emitting material represented by the following general formula (1) and a host material represented by the general formula (H-1) in a light emitting layer. The organic electroluminescent element has low driving voltage, high luminous efficiency, and excellent durability. L represents O, NRC0, or CRC1RC2; RC0 to RC2 each represents a hydrogen atom or a substituent; RC3 to RC6 each represents a substituent; nC3 and nC6 each represents an integer of 0 to 3; nC4 and nC5 each represents an integer of 0 to 4; RH111 to RH118 each represents a hydrogen atom or a substituent; X represents any one of O, S, NRH119, CRH120RH121, and SiRH122RH123, and RH119 to RH123 each represents a substituent; the ring A represents a benzene ring; and the ring B represents a 5- or 6-membered ring.;

主权项

1. An organic electroluminescent element comprising:
a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer contains at least one kind of light emitting material represented by the following general formula (1) and at least one kind of host material represented by the following general formula (H-1): L represents O, NRC0, or CRC1RC2, and RC0 to RC2 each independently represents a hydrogen atom or a substituent; RC3 to RC6 each independently represents a substituent; nC3 and nC6 each independently represents an integer of 0 to 3, and nC4 and nC5 each independently represents an integer of 0 to 4; wherein when nC3 to nC6 are 2 or more, a plurality of RC3s to RC6s may be respectively the same as or different from each other and may be connected with each other to form a ring: wherein RH111 to RH118 each independently represents a hydrogen atom or a substituent, X represents any one of O, S, NRH119, CRH120RH121, SiRH122RH123, and RH119 to RH123 each independently represents a substituent; The ring A represents a benzene ring and the ring B represents a 5- or 6-membered ring.