Hybrid Inorganic Light-Emitting Devices

Tech ID: 21857 / UC Case 1997-136-0

Brief Description

Hybrid inorganic light emitting device/luminescent polymer light-emitting sources for efficient and cost effective white lighting and for full-color applications.

Background

Hybrid light emitting devices are a way to leverage the strengths of organic and inorganic devices, while reducing the weaknesses of each.

Description

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.

Advantages

  • High efficiency
  • Cost effective
  • Enables emissions in a wide range of colors

Applications

  • Inorganic Light Emitting Devices    

 

This technology is available for licensing. U.S. Patent No. 5,966,393.

Patent Status

Country Type Number Dated Case
United States Of America Issued Patent 5,966,393 10/12/1999 1997-136
 

Inventors

Other Information

Categorized As

Related cases

1997-136-0

Keywords

LED, indled, cenIEE

Contact

Meaghan A. Shaw / shaw@tia.ucsb.edu / tel: View Phone Number. Please reference Tech ID #21857.

ADDITIONAL TECHNOLOGIES BY THESE INVENTORS

Office of Technology & Industry Alliances
University of California, Santa Barbara

342 Lagoon Road, , Santa Barbara, CA 93106-2055 | www.tia.ucsb.edu
Tel: 805-893-2073 | Fax: 805.893.5236 | shaw@tia.ucsb.edu

© 2011 - 2014, The Regents of the University of California, All Rights Reserved