Hybrid inorganic light emitting device/luminescent polymer light-emitting sources for efficient and cost effective white lighting and for full-color applications.
Hybrid light emitting devices are a way to leverage the strengths of organic and inorganic devices, while reducing the weaknesses of each.
Researchers at the University of California, Santa Barbara have developed hybrid inorganic light emitting device/luminescent polymer light-emitting sources for efficient and cost effective white lighting and for full-color applications. This invention utilizes the emission from inorganic light-emitting devices to pump the photoluminescence of organic thin films. This yields a combined emission made up of light emitted from the pump device superimposed on the photoluminescence emission for the organic thin films. The color of the light out can be controlled by color mixing, a well known process. Using the blue or blue-green LEDs in combination with luminescent polymer films as described in this invention, efficient white light emission or emission with a wide range of colors can be obtained.
This technology is available for licensing. U.S. Patent No. 5,966,393.
|United States Of America||Issued Patent||5,966,393||10/12/1999||1997-136|