A backlighting device (300, 400, 500, 600) emitting light having a first wavelength includes a first radiation emission device (302), e.g., an electroluminescent lamp, for emitting radiation having a second wavelength. A layer (306) of a plurality of photon emitting particles (308), e.g., free standing...http://www.google.de/patents/US20090059554?utm_source=gb-gplus-sharePatent US20090059554 - APPARATUS FOR SELECTIVELY BACKLIGHTING A MATERIAL
