Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 8, 2009
Patent Application Number
12332821
Date Filed
December 11, 2008
Patent Primary Examiner
Patent abstract
There is provided an organic light-emitting element comprising at least one light-emitting layer between a pair of electrodes formed on a substrate and at least two or more light emission center materials included in the light-emitting layer, and that the at least one or more light emission center materials include a phosphorescent light-emitting material, and an excitation lifetime of the light emission center material that emits light having a shortest wavelength is shorter than an excitation lifetime of the other light emission center material, whereby a high-efficiency organic light-emitting element without decreasing a color purity of white light emission can be obtained.
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