Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate
2007-10-09
2007-10-09
Duong, Thoi V. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
C349S064000, C362S355000
Reexamination Certificate
active
10895787
ABSTRACT:
A method of making an optical film comprises heating the optical film comprising greater than or equal to 80 wt. % polycarbonate to a sufficient temperature to stretch the optical film, wherein the weight percent is based on a total weight of the optical film; and stretching the optical film, wherein a resulting stretched optical film has a linear CTE measured in a direction parallel to a stretching direction of less than or equal to 50×10−6cm/cm/° C.
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Ambrose Nickey
Hay Grant
Herrmann Eugene David
Kumar Karkala Arun
Peters Philip Matthew
Cantor & Colburn LLP
Duong Thoi V.
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