Liquid crystal device
AssigneeCanon Kabushiki Kaisha
InventorsHideaki Takao, Masanobu Asaoka, Makoto Kojima
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Abstract
A liquid crystal device is constituted by a pair of substrates, at least one of which has an alignment film thereon, and a liquid crystal disposed between the substrates, The alignment film is formed of a resin including a first polyamide represented by formula (I) below and a second polyamide represented by formula (II) below: ##STR1## wherein R.sub.1 -R.sub.4 independently denote a group of CF.sub.3 (CF.sub.2).sub.1 (CH.sub.2).sub.m wherein l and m are integers satisfying 1.gtoreq.0 and m .gtoreq.O; A.sub.1 and A.sub.2 are mutually different divalent organic residues; and n1 and n2 are integers satisfying n1.gtoreq.2 and n2 .gtoreq.2.
Claims39
A liquid crystal device, comprising:
- a pair of substrates, at least one of which has an alignment film thereon, and a liquid crystal disposed between the substrates;
- wherein said alignment film comprises a resin including a first polyamide represented by formula (I) below and a second polyamide represented by formula (II) below:
- ##STR15## wherein R.sub.1 -R.sub.4 independently denote a group of CF.sub.3 (CF.sub.2).sub.1 (CH.sub.2).sub.m wherein l and m are integers satisfying 1.gtoreq.0 and m.gtoreq.0;
- and A.sub.1 l and A.sub.2 are mutually different divalent organic residues;
- and n1 and n2 are integers satisfying n1.gtoreq.2 and n2.gtoreq.2.
An electrode plate for a liquid crystal device, comprising:
- a substrate and an alignment film formed on the substrate;
- wherein said alignment film comprises a resin including a first polyamide represented by formula (I) below and a second polyamide represented by formula (II) below:
- ##STR19## wherein R.sub.1 -R.sub.4 independently denote a group of CF.sub.3 (CF.sub.2).sub.l (CH.sub.2).sub.m wherein l and m are integers satisfying l.gtoreq.0 and m .gtoreq.0;
- A.sub.1 and A.sub.2 are mutually different divalent organic residues;
- and n1 and n2 are integers satisfying n1.gtoreq.2 and n2.gtoreq.2.
A liquid crystal apparatus, including:
- (a) a liquid crystal panel comprising a pair of substrates having thereon scanning electrodes and data electrodes, respectively, so as to form an electrode matrix, at least one of the substrates further having thereon an alignment film;
- and a liquid crystal disposed between the substrates;
- (b) drive means for applying a scanning signal to the scanning electrodes and applying data signals to the data electrodes in synchronism with the scanning signal;
- wherein said alignment film comprises a resin including a first polyamide represented by formula (I) below and a second polyamide represented by formula (II) below:
- ##STR23## wherein R.sub.1 -R.sub.4 independently denote a group of CF.sub.3 (CF.sub.2).sub.l (CH.sub.2).sub.m wherein l and m are integers satisfying l.gtoreq.0 and m.gtoreq.0;
- A.sub.1 and A.sub.2 are mutually different divalent organic residues;
- and n1 and n2 are integers satisfying n1.gtoreq.2 and n2.gtoreq.2.
Dependencies are inferred from the claim text.