Organic electroluminescent element, display device, and illumination device
AssigneeKonica Minolta, Inc.
InventorsTakayuki Iijima, Hiroshi Kita
Life of this patent
Estimating the term…
Abstract
The purpose of the present invention is to provide an organic electroluminescent element having improved luminous efficiency and stability under high-temperature storage. The present invention is an organic electroluminescent element that has an anode, a cathode, and at least one light-emitting layer sandwiched between the anode and the cathode, and is characterized in that at least one of the light-emitting layers contains a π-conjugated boron compound having a structure represented by general formula (1). (In general formula (1), X1 to X9 each independently represents —CR or a nitrogen atom, R represents a hydrogen atom or a substituent, and Y1 to Y3 each independently represents an oxygen atom or a sulfur atom).
Claims19
An organic electroluminescent element comprising an anode, a cathode, and at least one organic layer sandwiched between the anode and the cathode,
- wherein at least one of the organic layer comprises a π-conjugated boron compound represented by general formula 1:
- wherein:
- X1 to X9 each independently represents —CW or a nitrogen atom,
- at least one of X1 to X9 represents —CW,
- W represents a hydrogen atom or a substituent, and at least one of W represents an optionally substituted alkyl group, an optionally substituted alkoxy groups, an optionally substituted amino group, an optionally substituted aromatic ring group, or an optionally substituted aromatic heterocyclic group, and
- Y1 to Y3 each independently represents an oxygen atom or a sulfur atom.
Dependencies are inferred from the claim text.