US 2006/0216440 A1 · Retardation plate

Abstract

A retardation plate is provided and includes: a transparent support; and an optically anisotropic layer formed from a discotic liquid crystalline compound. The discotic liquid crystalline compound has a molecule oriented and fixed with an angle between a discotic plane of the molecule and a plane of the transparent plane substantially being a right angle, and the discotic liquid crystalline compound has a wavelength dispersion value smaller than that of compound (A):

Claims4

Dependent claims

A retardation plate comprising:

a transparent support;
and
an optically anisotropic layer formed from a discotic liquid crystalline compound, wherein the discotic liquid crystalline compound has a molecule oriented and fixed with an angle between a discotic plane of the molecule and a plane of the transparent plane substantially being a right angle, and the discotic liquid crystalline compound has a wavelength dispersion value smaller than that of compound (A):

Dependencies are inferred from the claim text.

Facts

Application

11/387,815Filed 24 Mar 2006

Priority

JP 2005-08691924 Mar 2005

Published

28 Sep 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

C09K 19/18
Linked by a carbon chain: the chain containing carbon-to-carbon triple bonds, e.g. tolans
C09K 19/32
Non-steroidal liquid crystal compounds: containing condensed ring systems, i.e. fused, bridged or spiro ring systems
C09K 19/348
The heterocyclic ring being a five-membered aromatic ring containing at least one nitrogen atom: containing at least two nitrogen atoms
C09K 19/3488
Having nitrogen as hetero atom: the heterocyclic ring having more than 6 members, e.g. macrocycles, phthalocyanines

Abstract

Facts

Application

11/387,815Filed 24 Mar 2006

Priority

JP 2005-08691924 Mar 2005

Published

28 Sep 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

C09K 19/18
Linked by a carbon chain: the chain containing carbon-to-carbon triple bonds, e.g. tolans
C09K 19/32
Non-steroidal liquid crystal compounds: containing condensed ring systems, i.e. fused, bridged or spiro ring systems
C09K 19/348
The heterocyclic ring being a five-membered aromatic ring containing at least one nitrogen atom: containing at least two nitrogen atoms
C09K 19/3488
Having nitrogen as hetero atom: the heterocyclic ring having more than 6 members, e.g. macrocycles, phthalocyanines

Retardation plate

Life of this patent

Abstract

Claims4

Retardation plate

Life of this patent

Abstract

Claims4