The present invention provides light-emitting diode (LED) devices comprises compositions and containers of hermetically sealed luminescent nanocrystals. The present invention also provides displays comprising the LED devices. Suitably, the LED devices are white light LED devices.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
 Portions of this invention may have been made with United States Government support under a grant from the United States Department of Energy, DOE-SSWL Program, Grant No. DE-FG02-04ER84020. As such, the United States Government may have certain rights in this invention.