Compounds having negative optical dispersion, negative optical dispersion composition comprising the compounds, and optically anisotropic body comprising the composition

Patent metadata

Field	Value
Publication number	US-9850196-B2
Application number	US-201414913589-A
Country	US
Kind code	B2
Filing date	Sep 19, 2014
Priority date	Sep 30, 2013
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

The present invention relates to a reverse wavelength dispersion compound, a reverse wavelength dispersion composition including the same, and an optically anisotropic body including the same. The reverse wavelength dispersion composition according to the present invention can provide a stronger and more stable reverse wavelength dispersion property, and makes it possible to provide an optically anisotropic body having excellent optical properties.

First claim

The invention claimed is:

1. A reverse wavelength dispersion compound having Chemical Formula 1:
L 1 D 1 -G 1 m E 1 -A-E 2 G 2 -D 2 n L 2   [Chemical Formula 1]

wherein, in Chemical Formula 1,
A is a C 6 -C 20 aromatic group;
E 1 , E 2 , D 1 , and D 2 are independently a single bond, —COO—, or —OCO—;
L 1 and L 2 are independently —H, C 1 -C 20 alkyl or —S p —P,
wherein at least one of said L 1 and L 2 is —S p —P, said P is CH 2 ═CH—COO— or CH 2 ═CH—OCO—, said S p is a C 1 -C 20 alkylene;
m and n are independently an integer of 1 to 5, wherein if said m or n is 2 or more, each repeating unit of -(D 1 -G 1 )- or -(G 2 -D 2 )- repeating twice or more may be the same as or different from each other; and
G 1 and G 2 are independently a C 5 -C 8 non-aromatic carbocyclic group or a C 6 -C 20 aromatic group, wherein at least one of said G 1 and G 2 is the carbocyclic group and any one of hydrogens included in the carbocyclic group is substituted by the group represented by the following Chemical Formula 2:
* Q 1 p B 1   [Chemical Formula 2]

wherein, in Chemical Formula 2,
p is an integer of 1 to 10, wherein if said p is 2 or more, each repeating unit of -(Q 1 )- repeating twice or more may be the same as or different from each other,
-(Q 1 )- is

and
B 1 is —H or a C 2 -C 6 alkynyl group.

2. The reverse wavelength dispersion compound according to claim 1 , wherein
G 1 , and G 2 of Chemical Formula 1 are independently a cyclohexane ring, a cyclohexene ring, a benzene ring, a naphthalene ring, or a phenanthrene ring; and
at least one of said G 1 and G 2 is a cyclohexane ring or a cyclohexene ring, and wherein A of Chemical Formula 1 is a benzene ring, a naphthalene ring, or a phenanthrene ring.

3. An optically anisotropic film includes the reverse wavelength dispersion compound according to claim 1 and satisfies the following Equations I and II:
Δ n (450 nm) /Δn (550 nm) 1.0  (Equation I)

Δ n (650 nm) /Δn (550 nm) 1.0  (Equation II)

wherein, in Equations I and II, Δn(λ) means a specific birefringent index at wavelength λ.

Assignees

• Lg Chemical Ltd

Inventors

• Lee Min Hyung
• Chun Sung-Ho
• Seo Kyung Chang
• Kim Jung Hyun
• Hong Mi Ra
• Jang Hyeong Bin
• Mun Jeong Wook

Classifications

• G02B5/00

  Optical elements other than lenses (light guides G02B6/00; optical logic elements G02F3/00) · CPC title

• C07C2601/14

  The ring being saturated · CPC title

• C07C69/94

  of polycyclic hydroxy carboxylic acids, the hydroxy groups and the carboxyl groups of which are bound to carbon atoms of six-membered aromatic rings · CPC title

• G02B1/08

  made of polarising materials · CPC title

• C09K2019/0448

  the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate · CPC title