ORGANIC ELECTRIC LIGHT EMITTING ELEMENT, MATERIAL FOR SAID ELEMENT, AND LIGHT EMITTING DEVICE, DISPLAY DEVICE, AND ILLUMINATION DEVICE EMPLOYING SAID ELEMENT

摘要

An organic electroluminescent element including 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, in which the organic layer includes a compound represented by the following general formula (1), has high luminous efficiency, excellent blue color purity, and a small change in the chromaticity due to deterioration by driving, wherein Cy, Dn1, Ac1, L1, L2, L3, ring Z1, u1, q1, n1, m1, A11, and A12 are as defined herein.;

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 organic layer includes a compound represented by the following general formula (1): wherein Cy represents a fused aromatic ring structure having the number of constituent rings of 3 or more, and has Dn1 and Ac1 as different constituent rings, and each of the constituent rings are all hydrocarbon rings; Dn1 represents NR11, an O atom, or an S atom, and in the case where u1 is 0, u1 further has a substituent; R11 represents a substituent, and R11 may be bonded to Cy to form a ring other than an aromatic ring; Ac1 represents an electron absorbing substituent, an aryl group having an electron absorbing substituent, or an electron deficient heteroaryl group, and Ac1 may further have a substituent; ring Z1 represents an arylene group or a heteroarylene group, A11 represents a carbon atom constituting the ring Z1, and A12 represents a carbon atom or a nitrogen atom constituting the ring Z1; L1, L2 and L3 each independently represent an oxygen atom, a sulfur atom, CR12R13, or SiR14R15, and R12, R13, R14 and R15 each independently represent a substituent; u1 represents 0 or 1, and in the case where u1 is 1, the ring formed by Cy, Dn1, and the ring Z1 is not an aromatic ring; m1 represents 0 or 1, and when m1 is 0 and u1 is 1, Cy and the ring Z1 are directly bonded to each other; n1 and q1 represent 0 or 1, and in the case where any one of n1 and q1 is 0 and n1 or q1 is 1, the rings formed by Cy, Ac1 and L2 or L3 are not all aromatic rings, wherein when Ac1 is a pyridine ring, at least one of n1 and q1 is 1.