Patent 7976169 was granted and assigned to SUN INNOVATIONS INC. on July, 2011 by the United States Patent and Trademark Office.
An apparatus (e.g. a display) including a display substrate and a waveguide. The waveguide may guide ultraviolet light from the light source onto the display substrate. The display substrate may include light emitting material configured to emit visible light in response to absorption of the ultraviolet light.