Hybrid light-emitting sources for efficient and cost effective white lighting and for full-color applications
First Claim
1. A hybrid solid state light-emitting device comprisingan electrically-powered, solid state, inorganic, light emitter capable of emitting a first emitted output of lightanda photoluminescent polymer element positioned in the first emitted output of light, the polymer element comprising a photoluminescent conjugated semiconducting polymer which is pumped by a first portion of the first emitted output of light and when so pumped emits a second emitted output of light which is emitted from the device with that portion of the first emitted output if any remaining beyond the first portion.
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Abstract
Hybrid inorganic light emitting device/luminescent polymer light-emitting sources for efficient and cost effective white lighting and for full-color applications and their manufacture are disclosed. The hybrid light sources include an inorganic light-emitting source such as a p-n junction diode-containing device capable of emitting a first emitted output of light and a photoluminescent polymer element positioned in the first emitted output of light, the polymer being selected to be capable of being pumped by a first portion of the first emitted output of light and when so pumped of emitting a second emitted output of light which is emitted from the device with that portion of the first emitted output remaining beyond the first portion.
226 Citations
38 Claims
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1. A hybrid solid state light-emitting device comprising
an electrically-powered, solid state, inorganic, light emitter capable of emitting a first emitted output of light and a photoluminescent polymer element positioned in the first emitted output of light, the polymer element comprising a photoluminescent conjugated semiconducting polymer which is pumped by a first portion of the first emitted output of light and when so pumped emits a second emitted output of light which is emitted from the device with that portion of the first emitted output if any remaining beyond the first portion.
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26. A hybrid solid state light-emitting device comprising
an electrically-powered, solid state, inorganic, light emitter capable of emitting a first emitted output of light and a photoluminescent polymer element positioned in the first emitted output of light, the polymer element comprising a saturated polymer mixed with luminescent dyes or a saturated polymer having a saturated main chain with luminescent dye molecules attached to the main chain via side-chains which is pumped by a first portion of the first emitted output of light and when so pumped emits a second emitted output of light which is emitted from the device with that portion of the first emitted output remaining beyond the first portion.
Specification