B - Operations – Transporting – 42 – D
Patent
B - Operations, Transporting
42
D
B42D 15/10 (2006.01) G02F 1/1335 (2006.01) G02F 1/1337 (2006.01)
Patent
CA 2493574
A polarising liquid crystal device comprises a substrate (10), at least one photo-alignment layer (12) which is uniformly aligned with a polarised light source and a nematic liquid crystal layer (14) applied to the photo-alignment layer (12). A latent image (18;48;78) which is viewable under cross-polarisers is formed by the photo-alignment layer (12) and the liquid crystal layer (14) without the aid of a mask by a variable printing or laser writing process.
L'invention concerne un dispositif à cristaux liquides de polarisation comprenant un substrat (10), au moins une couche de photo-alignemement (12) alignée de manière uniforme avec une source lumineuse polarisée et une couche à cristaux liquides nématique (14) appliquée sur la couche de photo-alignement (12). Une image latente (18, 48, 78) visible sous polariseurs croisés est formée par la couche de photo-alignement (12) et la couche à cristaux liquides (14) sans avoir recours à un masque, lors d'un processus d'impression variable ou d'écriture laser.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Securency Pty Ltd
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