Optical film and liquid-crystal display device

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With viewing layer of specified composition

Reexamination Certificate

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C428S001100, C428S411100, C428S516000

Reexamination Certificate

active

07871680

ABSTRACT:
An optical film has a transparent film including light output portions distributed over one of opposite surfaces of the transparent film so as to make the total luminous transmittance and the haze of the optical film be set in a range of from 75 to 92% and in a range of from 4 to 20% respectively, the light output portions being constituted by concave or convex portions having optical path changing slopes each inclined at an inclination angle of from 35 to 48 degrees with respect to a film plane of the transparent film. A liquid-crystal display device has an optical film defined above, and a liquid-crystal display panel, wherein the optical film is disposed on one of opposite surfaces of the liquid-crystal display panel so that a surface of the film in which the light output portions of the optical film are provided faces outward.

REFERENCES:
patent: 4374612 (1983-02-01), Matsumura et al.
patent: 4856857 (1989-08-01), Takeuchi et al.
patent: 5903391 (1999-05-01), Toshima et al.
patent: 6027220 (2000-02-01), Arai
patent: 6086790 (2000-07-01), Hayashi et al.
patent: 6097514 (2000-08-01), Nishikawa
patent: 6159608 (2000-12-01), Friedman et al.
patent: 6259496 (2001-07-01), Kashima
patent: 6379017 (2002-04-01), Nakabayashi et al.
patent: 2001/0010630 (2001-08-01), Umemoto
patent: 2001/0012159 (2001-08-01), Umemoto et al.
patent: 2001/0020984 (2001-09-01), Umemoto
patent: 1 111 440 (2001-06-01), None
patent: 1 113 310 (2001-07-01), None
patent: 1 122 586 (2001-08-01), None
patent: 1 126 312 (2001-08-01), None
patent: 1 154 306 (2001-11-01), None
patent: 55070816 (1980-05-01), None
patent: 5-158033 (1993-06-01), None
patent: 11-232920 (1999-08-01), None
patent: 11-260132 (1999-09-01), None
patent: 2000-56138 (2000-02-01), None
patent: 2000-147499 (2000-05-01), None
patent: 2000-251515 (2000-09-01), None
patent: 95/07435 (1995-03-01), None
Japanese Office Action issued Aug. 3, 2010 in counterpart Japanese Patent Application No. 2001-073243.

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