Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jie Liu0
Joseph John Shiang0
Anil Raj Duggal0
Date of Patent
June 5, 2007
0Patent Application Number
108708650
Date Filed
June 18, 2004
0Patent Primary Examiner
Patent abstract
A light-emitting device comprises a stack of organic electroluminescent (EL) elements, wherein an organic EL element in the stack overlaps at least a portion of another organic EL element, and the organic EL elements are electrically separate. Each of the organic EL elements of the stack is activated with a different level of voltage.
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