About: http://webisa.webdatacommons.org/311489926

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It is necessary that visible light or ultraviolet be provided to the display device of the present invention principally at angles greater than the minimum critical angle ??c.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca