Light emitting devices with agent to increase the fraction...

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type

Reexamination Certificate

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C313S504000, C427S066000

Reexamination Certificate

active

08008856

ABSTRACT:
A light emitting device comprising a first electrode, a second electrode, an emissive material between the first and second electrodes and a mixing agent separate from the emissive material is disclosed. In certain examples, the mixing agent may be effective to increase a fraction of excitons formed as a singlet state.

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