ORGANIC ELECTROLUMINESCENT ELEMENT

PROBLEM TO BE SOLVED: To provide an organic EL element which does not change in light emission color and has excellent performance. SOLUTION: In the organic electroluminescent element having a hole transport layer and a light emitting layer held between a pair of electrodes, the hole transport layer includes a metal oxide, and the light emitting layer includes at least one kind of boron compound represented by general formula (1) [R1, R2and R3are each independently an aryl group or heterocyclic group, or any two of R1, R2 and R3 are combined with each other to form a ring; R4is a hydrogen atom or a substituent; m is an integer of 0 to 2; Q is a linking group, X is a nitrogen atom, an oxygen atom, a sulfur atom, a phosphorus atom or a selenium atom; a dotted line half arc represents that Q and X may be parts of a common ring; a dotted and a solid line between Q and X represents a single bond and a double bond, respectively; an arrow extending from X to B represents a coordinate bond; Ra is hydrogen or a monovalent to quadrivalent organic skeleton; and n is an integer of 1 to 4]. COPYRIGHT: (C)2011,JPO&INPIT