Invention Grant
US08592057B2 Organic electroluminescence element, new compound for the same, display device and lighting device using the same 有权
有机电致发光元件,新型化合物,显示装置及其使用的照明装置

Organic electroluminescence element, new compound for the same, display device and lighting device using the same
Abstract:
Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound, wherein at least one of the organic compound layers contains a compound represented by Formula (2): wherein, X represents O or S; three of Y1 to Y4 each are a group represented by Formula (2A), and one of Y1 to Y4 is a hydrogen atom. Formula (2A) is: Ar1L1n1* wherein, L1 represents a divalent linking group derived from an aromatic hydrocarbon ring or an aromatic heterocycle; n1 represents an integer of 0 to 3, provided that when n1 is 2 or 3, a plurality of L1s may be the same or different; “*” indicates a linking position with Formula (2).
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