The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2012
Filed:
Aug. 28, 2007
Andrew Skipor, West Chicago, IL (US);
Rick Latella, Woodstock, IL (US);
Steven Scheifers, Hoffman Estates, IL (US);
Andrew Skipor, West Chicago, IL (US);
Rick Latella, Woodstock, IL (US);
Steven Scheifers, Hoffman Estates, IL (US);
QD Vision, Inc., Lexington, MA (US);
Abstract
A backlighting device () emitting light having a first wavelength includes a first radiation emission device (), e.g., an electroluminescent lamp, for emitting radiation having a second wavelength. A layer () of a plurality of photon emitting particles (), e.g., free standing quantum dots or phosphorus particles, emits light having the first wavelength in response to the first radiation emission device (), the first wavelength being larger than the second wavelength. A transparent material () overlies the layer of a plurality of photon emitting particles (), wherein the light having a first wavelength passes through the transparent material (). Optionally, a filter () may be placed over the layer () to block the radiation having a second wavelength, and a scattering layer () may be placed over the layer () to scatter wavelength other than the first wavelength.