05686979 is referenced by 324 patents and cites 86 patents.

A device, comprising a switchable optical panel and means for switching the panel between a reflecting state and a transmitting state. The switchable optical panel includes a transparent optically active layer having a first and a second major surface, a first reflective polarizer disposed on the first major surface and a second reflective polarizer disposed on the second major surface. The optically active layer preferably comprises a liquid crystal device and the switching means preferably comprises a system of drying electronics for applying voltage across the liquid crystal device. The invention also includes a switchable window and a transflective optical display.

Title
Optical panel capable of switching between reflective and transmissive states
Application Number
8/494916
Publication Number
5686979
Application Date
June 26, 1995
Publication Date
November 11, 1997
Inventor
David J W Aastuen
Farmington
MN, US
Andrew J Ouderkirk
Woodbury
MN, US
Michael F Weber
Shoreview
MN, US
Agent
H Sanders Gwin Jr
Walter N Kirn Jr
Gary L Griswold
Assignee
Minnesota Mining and Manufacturing Company
MN, US
IPC
G02F 1/1335
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