06215920 is referenced by 127 patents and cites 36 patents.

Charged particles suspended in a medium such as Fluorinertâ„¢ Electronic Liquid are used to electrophoretically control total internal reflection (TIR) at a retro-reflective surface formed on a high refractive index material. Prismatic structures redirect ambient light from an overhead light source toward a display image and then from the image to the region in front of the image, yielding a high contrast reflective display. A transparent planar waveguide front lights the display with sequential flashes of red, blue and green light to generate a full color display. TIR can also be controlled at retro-reflective surfaces by means of a vapor-liquid phase transition, or by changing the absorption coefficient of a material using electrical, chemical and/or electrochemical methods.

Title
Electrophoretic, high index and phase transition control of total internal reflection in high efficiency variable reflectivity image displays
Application Number
9/324103
Publication Number
6215920 (B1)
Application Date
June 2, 1999
Publication Date
April 10, 2001
Inventor
Andrzej Kotlicki
Vancouver
US
Michele Ann Mossman
Vancouver
US
Robin John Noel Coope
Vancouver
US
Dmitri Nikolaevich Grandmaison
Vancouver
US
Lorne A Whitehead
Vancouver
US
Agent
Oyen Wiggs Green & Mutala
US
Assignee
The University of British Columbia
US
IPC
G02B 6/26
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