06111696 is referenced by 278 patents and cites 117 patents.

An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix in combination with light directing materials to enable control of light emitted from a lighting fixture or display. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film, and the light directing materials are chosen to control the direction of polarized light reflected from or transmitted by the optical film.

Title
Brightness enhancement film
Application Number
610092
Publication Number
6111696
Application Date
February 28, 1997
Publication Date
August 29, 2000
Inventor
Biswaroop Majumdar
Delmar
NY, US
Carl A Stover
St. Paul
MN, US
Timothy J Nevitt
Red Wing
MN, US
Arthur L Kotz
White Bear Lake
MN, US
Michael F Weber
Shoreview
MN, US
Andrew J Ouderkirk
Woodbury
MN, US
Lockwood W Carlson
Stillwater
MN, US
Richard C Allen
Mendota Heights
MN, US
Agent
John A Fortkort
Assignee
3M Innovative Properties Company
MN, US
IPC
G02B 5/30
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