Nematic liquid crystal devices comprising surface...

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C349S191000, C349S179000

Reexamination Certificate

active

10087660

ABSTRACT:
A liquid crystal device comprises a nematic liquid crystal, voltage means for applying a voltage across said liquid crystal, and two substrates (42, 30) each provided with an alignment layer (32, 33), wherein: said liquid crystal is sandwiched between said two substrates (42, 30); said nematic liquid crystal can be placed in at least one operating state and at least one non-operating state, and at least one of said alignment layers (32, 33) is provided with a plurality of surface protrusions (40) formed from an anisotropic material.

REFERENCES:
patent: 4232947 (1980-11-01), Funada et al.
patent: 5959707 (1999-09-01), Murai et al.
patent: 6249332 (2001-06-01), Bryan-Brown et al.
patent: 6295111 (2001-09-01), Kim et al.
patent: 6618113 (2003-09-01), Ulrich et al.
patent: 6879364 (2005-04-01), Sasaki et al.
patent: 6897918 (2005-05-01), Nonaka et al.
patent: 1 020 756 (1998-09-01), None
patent: 0 880 052 (1998-11-01), None
patent: 0 965 876 (1999-06-01), None
patent: 0 880 052 (1999-12-01), None
patent: 0 996 028 (2000-04-01), None
patent: 1 070 981 (2001-01-01), None
patent: 1 124 153 (2001-08-01), None
patent: 1 139 151 (2001-10-01), None
patent: 1 124 153 (2003-04-01), None
patent: 07-120764 (1995-05-01), None
patent: 10-268318 (1998-10-01), None
patent: 10-325955 (1998-12-01), None
patent: 10-0236256 (1999-12-01), None
patent: 98/04953 (1998-05-01), None
patent: 01/23951 (2001-05-01), None
patent: 01/37036 (2001-05-01), None
EP 0996028 A2, Acosta et al., Apr. 26, 2000.
British Search Report, Application No. GB 0105434.5, dated Nov. 13, 2001.
Taiwan Office Action dated Nov. 25, 2003.
European Search Report for corresponding Application 02256872.9, dated Jul. 6, 2004.
Bos, P.J. et al., “The pi-Cell: A Fast Liquid-Crystal Optical-Switching Device”, Molecular Crystals and Liquid Crystals (Inc. Nonlinear Optics), Gordon and Breach Science Publishers, Reading GB, vol. 113, No. 1-4, 1984, pp. 329-339, XP002053315.
European Search Report regarding Application No. 02250944.2 dated Sep. 18, 2003.
Korean Office Action for corresponding Application US 5,959,707, dated Feb. 24, 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Nematic liquid crystal devices comprising surface... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nematic liquid crystal devices comprising surface..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nematic liquid crystal devices comprising surface... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3847990

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.