Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-02-13
2007-02-13
Schechter, Andrew (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S119000, C349S092000
Reexamination Certificate
active
10344674
ABSTRACT:
A display device comprising a liquid-crystal cell element (20) placed between two polarizers (23, 28) comprising at least one optical structure for compensating for the variations in birefringence of said liquid crystal according to the viewing angle. The optical compensation structure comprises at least one oblique-axis film (25, 26) of polymerized liquid-crystal type suitable for at least partly compensating for the undesirable effects of the natural birefringence of the liquid crystal, combined with a volume hologram (24, 27) of small retardation suitable for improving the compensatability of said film.
REFERENCES:
patent: 5410421 (1995-04-01), Huignard et al.
patent: 5467206 (1995-11-01), Loiseaux et al.
patent: 5526063 (1996-06-01), Joubert et al.
patent: 5546200 (1996-08-01), Nicolas et al.
patent: 5640256 (1997-06-01), De Vre et al.
patent: 5734447 (1998-03-01), Loiseaux et al.
patent: 5801794 (1998-09-01), Lehureau et al.
patent: 5940050 (1999-08-01), Joubert et al.
patent: 5946114 (1999-08-01), Loiseaux et al.
patent: 6014192 (2000-01-01), Lehureau et al.
patent: 6069728 (2000-05-01), Huignard et al.
patent: 6141071 (2000-10-01), Sharp
patent: 6157471 (2000-12-01), Bignolles et al.
patent: 6158866 (2000-12-01), Gulli et al.
patent: 6246521 (2001-06-01), Delboulbe et al.
patent: 6262849 (2001-07-01), Potin et al.
patent: 6288805 (2001-09-01), Huignard et al.
patent: 6356393 (2002-03-01), Potin et al.
patent: 6359671 (2002-03-01), Abileah
patent: 6384974 (2002-05-01), Joubert et al.
patent: 6426810 (2002-07-01), Joubert et al.
patent: 6504658 (2003-01-01), Bignolles et al.
patent: 0 962 805 (1999-12-01), None
patent: 2 754 609 (1998-04-01), None
Mori et al; “Application for a Negative Birefringence Film to Various LCD Modes”; International Display Research Conference (IDRC), US Santa Ana, CA, SID; vol. Conf. 17; Sep. 15, 1997, pp. M-88-M97, XP000767506.
Bignolles Laurent
Joubert Cecile
Morbieu Bertrand
Kim Richard
Lowe Hauptman & Berner LLP
Schechter Andrew
Thales
LandOfFree
Liquid crystal display device with birefringence compensator... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid crystal display device with birefringence compensator..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal display device with birefringence compensator... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3831945