Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate
2011-04-12
2011-04-12
Nelms, David (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
C349S061000, C349S062000, C349S063000, C349S065000, C349S066000, C349S067000, C349S068000, C349S069000, C349S070000, C349S071000, C359S599000
Reexamination Certificate
active
07924368
ABSTRACT:
An optical assembly includes a light diffusing layer attached to a reflective polarizing layer. An intermediate region between the light diffusing layer and the reflective polarizing layer includes an intermediate structure that defines voids between the light diffusing layer and the reflective polarizing layer.
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U.S. Appl. No. 60/690992, entitled “Diffuse Multilayer Optical Article”, filed on Jun. 15, 2005.
Etzkorn Stephen J.
Fabick Ryan T.
Gehlsen Mark D.
3M Innovative Properties Company
Nelms David
Nguyen Thanh-Nhan P
Pralle Jay R.
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