Light-emitting device with organic electroluminescent material and photoluminescent materials
A light-emitting device comprises a light-emitting member, which comprises two electrodes and an organic electroluminescent material disposed between the electrodes, and at least one organic photoluminescent ("PL") material. The light-emitting member emits light having a first spectrum in response to a voltage applied across the two electrodes. The organic PL material absorbs a portion of the light emitted by the light-emitting member and emits light having second spectrum different than the first spectrum. The light-emitting device can include an inorganic PL material that absorbs another portion of the light emitted from the light-emitting member and emits light having a third spectrum different than both the first and the second spectra.
- Research Organization:
- General Electric Company, Niskayuna, NY (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-00NT40989
- Assignee:
- General Electric Company (Niskayuna, NY)
- Patent Number(s):
- 6,903,505
- Application Number:
- 09/683,345
- OSTI ID:
- 1175380
- Country of Publication:
- United States
- Language:
- English
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