Methods of making and using optical film, light-diffusing film

Details Methods of making and using optical film, light-diffusing film Methods of making and using optical film, light-diffusing film

2008-05-06

2008-05-06

Duong, Thoi V. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S187000, C349S112000, C349S117000, C362S355000, C359S599000

Reexamination Certificate

active

07369192

ABSTRACT:
An embodiment of 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. 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.

REFERENCES:
patent: 3005236 (1961-10-01), Reichle et al.
patent: 5818559 (1998-10-01), Yoshida
patent: 5944405 (1999-08-01), Takeuchi et al.
patent: 5965655 (1999-10-01), Mordecai et al.
patent: 6194497 (2001-02-01), Willems et al.
patent: 6222003 (2001-04-01), Hosoi et al.
patent: RE38530 (2004-06-01), Willems et al.
patent: 6963451 (2005-11-01), Se et al.
patent: 2003/0002153 (2003-01-01), Hiraishi et al.
patent: 2003/0071947 (2003-04-01), Shiraogawa et al.
patent: 2003/0108710 (2003-06-01), Coyle et al.
patent: 2003/0156238 (2003-08-01), Hiraishi et al.
patent: 2003/0207082 (2003-11-01), Maas et al.
patent: 2003/0214728 (2003-11-01), Olczak
patent: 2004/0066645 (2004-04-01), Graf et al.
patent: 2004/0160673 (2004-08-01), Se et al.
patent: 2004/0228141 (2004-11-01), Hay et al.
patent: 1089114 (2001-04-01), None
patent: 1329746 (2003-07-01), None
patent: 2000-231015 (2000-08-01), None
patent: 2004-58497 (2004-02-01), None
JP 01204721; Aug. 17, 1989; Manufacture of Thin Polycarbonate Resin Film; English Abstract; only one page.
JP 2004-058497; Feb. 26, 2004; Method for Producing Phase Difference Film; English Abstract; only one page.
JP 2000-231015; Aug. 22, 2000; Production of Phase Difference Plate; English Abstract; only one pate.
JP 04084107; Mar. 17, 1992; Production of Phase Difference Film; English Abstract; only one page.
European Search Report; International Application No. PCT/US2005/015563; Applicant's File Reference 08CS143802-2; International Filing Date May 4, 2005; Date of Mailing Sep. 1, 2005.
U.S. Appl. No. 10/787,158, filed Feb. 27, 2004, Kevin Capaldo, et al., “Diffuser for Flat Panel Display”, 49 pages.

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