Inventors:
James Battiato - Austin TX, US
William Merrill - White Bear Lake MN, US
Leland Whitney - St. Paul MN, US
Kenneth Epstein - St. Paul MN, US
Robert Brott - Woodbury MN, US
Rolf Biernath - Wyoming MN, US
Mitsuko O'Neill - Stillwater MN, US
Stephen Johnson - Woodbury MN, US
Matthew Johnson - St. Paul MN, US
Daniel Hennen - Cottage Grove MN, US
William Black - Eagan MN, US
Mark O'Neill - Stillwater MN, US
William Bryan - Mahtomedi MN, US
Dennis Wilson - Buffalo Lake MN, US
Martin Denker - Vadnais Heights MN, US
David Kowitz - St. Paul MN, US
International Classification:
G02F 1/1335
Abstract:
Films having a structured surface with an engineered feature, such as prism grooves, to be used in displays having a backlight. The films can be arranged in a stack having one or more of the following: birefringent brightness enhancement films, non-birefringent brightness enhancement films, polarizers, diffusers, birefringent turning films, and non-birefringent turning films. Those films can be arranged in any order from the backlight to a viewer.