Stacked organic electroluminescent devices
First Claim
1. A light-emitting device comprises a plurality of stacks of organic EL elements, wherein one organic EL element of a stack overlaps at least a portion of another organic EL element of the same stack, the organic EL elements of the same stack are electrically separate, one organic EL element of one stack is electrically connected in series to another organic EL element in an adjacent stack, and each organic EL element comprises an organic EL material disposed between a pair of electrodes.
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Accused Products
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.
29 Citations
13 Claims
- 1. A light-emitting device comprises a plurality of stacks of organic EL elements, wherein one organic EL element of a stack overlaps at least a portion of another organic EL element of the same stack, the organic EL elements of the same stack are electrically separate, one organic EL element of one stack is electrically connected in series to another organic EL element in an adjacent stack, and each organic EL element comprises an organic EL material disposed between a pair of electrodes.
Specification