Photochromic liquid crystals

Details Photochromic liquid crystals Photochromic liquid crystals

2003-06-26

2008-08-26

Visconti, Geraldina (Department: 1795)

Compositions

Liquid crystal compositions

Containing pleochroic dye

C252S299200, C252S299300, C252S299400, C252S299500, C252S299600, C252S299700, C428S001100, C428S001200, C430S020000, C430S270100, C349S176000

Reexamination Certificate

active

07416682

ABSTRACT:
The invention relates to novel photochromic liquid crystal materials which may be used in various electro-optic devices including liquid crystal devices. The materials can be converted into another form on irradiation by light which may make it feasible for them to be addressed by light in electro-optic devices. The materials are based on 5-membered heterocycles.

REFERENCES:
patent: 5496670 (1996-03-01), Hvilsted et al.
patent: 5679792 (1997-10-01), Escher et al.
patent: 6359150 (2002-03-01), Fukudome et al.
patent: 2002/0007072 (2002-01-01), Irie
patent: 2002/0034705 (2002-03-01), Irie et al.
patent: 2002/0142248 (2002-10-01), Dubois et al.
patent: 100 39 903 (2002-02-01), None
patent: 1 167 487 (2002-01-01), None
patent: 06-049443 (1994-02-01), None
patent: 08 143564 (1996-06-01), None
patent: 09 061609 (1997-03-01), None
patent: 09 241254 (1997-09-01), None
patent: 10 251630 (1998-09-01), None
patent: 11-071368 (1999-03-01), None
patent: 2000-72768 (2000-03-01), None
patent: 2000-87024 (2000-03-01), None
patent: 2000 344693 (2000-12-01), None
patent: 2001 049244 (2001-02-01), None
patent: 2002 069439 (2002-03-01), None
patent: 2002 082414 (2002-03-01), None
patent: 2002 293784 (2002-10-01), None
patent: 2002 302669 (2002-10-01), None
patent: 2002 309244 (2002-10-01), None
patent: WO 02 102923 (2002-12-01), None
patent: WO 02 21523 (2002-03-01), None
Uchida et al, Chemistry Letters 2000, 6, pp. 654-655, “An optically active diarylethene having cholesterol units: a dopant for photoswitching of liquid crystal phases”.

Affiliated with

Also associated with

Rating

Photochromic liquid crystals does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4003908