Inventors:
Willem V. Bastiaens - Medina MN
Rolf W. Biernath - Wyoming MN
Mark P. Dolan - Hudson WI
Lori P. Engle - Little Canada MN
Patrick R. Fleming - Lake Elmo MN
Robert J. Wolf - Woodbury MN
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
G02B 2600
US Classification:
359296, 359298, 345107, 428323, 428331
Abstract:
Assemblies containing a substrate with pockets for electromagnetically responsive particles can be made for a variety of uses, including, for example, display media, lenses, and color-changing fabric. The arrangement of these pockets can be selected to provide higher particle density than previously realized. The assembly includes an assembly substrate, particles, and a top coat layer.