Optical film and a liquid crystal display using the same

Details Optical film and a liquid crystal display using the same Optical film and a liquid crystal display using the same

2005-06-07

2005-06-07

Ton, Toan (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S122000

Reexamination Certificate

active

06903788

ABSTRACT:
An optical film having excellent light utilization efficiency and high brightness, and a liquid crystal display using the optical film. The optical film is formed by laminating integrally a brightness enhancement film (A) that separates natural light into transmitted light and reflected light and a collimating film (B) having an uneven portion on a surface thereof. Since an air interface is eliminated by the integral lamination of the brightness enhancement film and the collimating film, stray light is reduced, and the brightness enhancement film has an improved efficiency in reflecting and polarizing light; thereby, enhancing the brightness.

REFERENCES:
patent: 3709580 (1973-01-01), Fugitt et al.
patent: 4796160 (1989-01-01), Kahn
patent: 5184881 (1993-02-01), Karpen
patent: 5481385 (1996-01-01), Zimmerman et al.
patent: 5579134 (1996-11-01), Lengyel
patent: 5600462 (1997-02-01), Suzuki et al.
patent: 5627926 (1997-05-01), Nakamura et al.
patent: 5721603 (1998-02-01), De Vaan et al.
patent: 5828488 (1998-10-01), Ouderkirk et al.
patent: 5863114 (1999-01-01), Nagatani et al.
patent: 5995288 (1999-11-01), Kashima et al.
patent: 6074741 (2000-06-01), Murata et al.
patent: 6111696 (2000-08-01), Allen et al.
patent: 6163351 (2000-12-01), Nakayama
patent: 6354709 (2002-03-01), Campbell et al.
patent: 6356391 (2002-03-01), Gardiner et al.
patent: 6404469 (2002-06-01), Kitagawa et al.
patent: 6417831 (2002-07-01), Kashima
patent: 2002/0003593 (2002-01-01), Arakawa et al.
patent: 0 588 504 (1994-03-01), None
patent: 0 881 509 (1998-12-01), None
patent: 0 908 745 (1999-04-01), None
patent: 02-257188 (1990-10-01), None
patent: 05-169015 (1993-07-01), None
patent: 08-094833 (1996-04-01), None
patent: 10-319233 (1998-12-01), None
patent: WO94/29765 (1994-12-01), None
U.S. Appl. No. 09/577,040, filed May 24, 2000, Toshio Nakamura et al.
European Search Report in Appln. No. EP 00110898.4 (corresponding to U.S. Appl. No. 09/577,040).

Affiliated with

Also associated with

Rating

Optical film and a liquid crystal display using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical film and a liquid crystal display using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical film and a liquid crystal display using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3478857