Optical film and display device including same

Patent metadata

Field	Value
Publication number	US-9212241-B2
Application number	US-201213728971-A
Country	US
Kind code	B2
Filing date	Dec 27, 2012
Priority date	Dec 28, 2011
Publication date	Dec 15, 2015
Grant date	Dec 15, 2015

Abstract

An optical film including a polymer including a repeating unit A including a repeating unit represented by the following Chemical Formulas 1 to 3, or a combination thereof; and a repeating unit B derived from a monomer having an unsaturated bond copolymerizable with the repeating unit A, wherein the optical film has a short wavelength dispersion of an in-plane phase-difference value (R e ) (450 nm/550 nm) ranging from about 0.81 to about 1.20, and a long wavelength dispersion of an in-plane phase-difference value (R e ) (650 nm/550 nm) ranging from about 0.90 to about 1.18:

wherein, in Chemical Formulas 1 to 3, the variables R 1 to R 21 are defined herein.

First claim

What is claimed is:

1. An optical film comprising:
a polymer comprising a repeating unit A comprising a repeating unit represented by the following Chemical Formulas 1 to 3, or a combination thereof; and a repeating unit B derived from a monomer comprising an unsaturated bond copolymerizable with the repeating unit A,
wherein the optical film has a short wavelength dispersion of an in-plane phase-difference value (R e ) (450 nanometers/550 nanometers) ranging from about 0.81 to about 1.20, and a long wavelength dispersion of an in-plane phase-difference value (R e ) (650 nanometers/550 nanometers) ranging from about 0.90 to about 1.18:

wherein, in Chemical Formula 1,
R 1 to R 6 are the same or different in each repeating unit and are each independently hydrogen, or a substituted or unsubstituted C1 to C10 aliphatic group, and
R 7 is the same or different in each repeating unit, and each is independently hydrogen, a substituted or unsubstituted C1 to C30 aliphatic group, a substituted or unsubstituted C3 to C30 alicyclic group, a substituted or unsubstituted C6 to C30 aromatic group, or a substituted or unsubstituted C2 to C30 heterocyclic group,
wherein the alicyclic group, aromatic group, or heterocyclic group is present singularly; at least two of the alicyclic group, aromatic group, or heterocyclic group are linked to provide a condensed ring; or at least two of the alicyclic group, aromatic group, or heterocyclic group are linked via a single bond, —O—, —S—, —C(═O)—, —CH(OH)—, —S(═O) 2 —, —Si(CH 3 ) 2 —, —(CH 2 ) p — (wherein 1≦p≦10), —(CF 2 ) q — (wherein 1≦q≦10), —C(CH 3 ) 2 —, —C(CF 3 ) 2 —, or —C(═O)NH—,

wherein, in Chemical Formula 2,
R 8 to R 13 are the same or different in each repeating unit and are each independently hydrogen, or a substituted or unsubstituted C1 to C10 aliphatic group,

wherein, in Chemical Formula 3,
R 14 to R 19 are the same or different in each repeating unit and are each independently hydrogen, or a substituted or unsubstituted C1 to C10 aliphatic group, and
R 20 and R 21 are the same or different in each repeating unit and are each independently hydrogen, a substituted or unsubstituted C1 to C30 aliphatic group, a substituted or unsubstituted C3 to C30 alicyclic group, a substituted or unsubstituted C6 to C30 aromatic group, or a substituted or unsubstituted C2 to C30 heterocyclic group,
wherein the alicyclic group, aromatic group, or heterocyclic group is present singularly; at least two of the alicyclic group, aromatic group, or heterocyclic group are linked to provide a condensed ring; or at least two of the alicyclic group, aromatic group, or heterocyclic group are linked via a single bond, —O—, —S—, —C(═O)—, —CH(OH)—, —S(═O) 2 —, —Si(CH 3 ) 2 —, —(CH 2 ) p — (wherein 1≦p≦10), —(CF 2 ) q — (wherein 1≦q≦10), —C(CH 3 ) 2 —, —C(CF 3 ) 2 —, or —C(═O)NH—.

2. The optical film of claim 1 , wherein the repeating unit represented by the Chemical Formula 1 comprises a repeating unit represented by the following Chemical Formulas 11-1 to 11-3, or a combination thereof:

wherein, in Chemical Formulas 11-1 to 11-3,
R 90 to R 92 are the same or different in each repeating unit and are each independently hydrogen, or a C1 to C20 alkyl group,
n90 is the same or different in each repeating unit, and each is independently an integer ranging from 0 to 5, and
n91 is the same or different in each repeating unit, and each is independently an integer ranging from 0 to 11.

3. The optical film of claim 1 , wherein the repeating unit represented by the Chemical Formula 1 comprises a repeating unit represented by the following Chemical Formulas 21-1 to 21-3, or a combination thereof, the repeating unit represented by the Chemical Formula 2 comprises a repeating unit represented by the following Chemical Formula 22-1, and the repeating unit represented by the Chemical Formula 3 comprises a repeating unit represented by the following Chemical Formula 23-1, a repeating unit represented by the following Chemical Formula 23-2, or a combination thereof:

4. The optical film of claim 1 , wherein the repeating unit B comprises a repeating unit represented by the following Chemical Formula 4, a repeating unit represented by the following Chemical Formula 5, or a combination thereof:

wherein, in Chemical Formula 4,
R 50 to R 52 are the same or different in each repeating unit and are each independently hydrogen, or a substituted or unsubstituted C1 to C10 aliphatic group,
R 53 is the same or different in each repeating unit, and each is independently hydrogen, a halogen, a substituted or unsubstituted C1 to C30 aliphatic group, a substituted or unsubstituted C3 to C30 alicyclic group, a substituted or unsubstituted C6 to C30 aromatic group, a substituted or unsubstituted C2 to C30 heterocyclic group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C30 an aryloxy group, a substituted or unsubstituted C2 to C30 ester group, a carboxyl group, or —N(R 100 )(R 101 ), (wherein R 100 and R 101 are the same or different and are each independently hydrogen, or a substituted or unsubstituted C1 to C10 aliphatic group),
wherein the alicyclic group, aromatic group, or heterocyclic group is present singularly; at least two of the alicyclic group, aromatic group, or heterocyclic group are linked to provide a condensed ring; or at least two of the alicyclic group, aromatic group, or heterocyclic group are linked via a single bond, —O—, —S—, —C(═O)—, —CH(OH)—, —S(═O) 2 —, —Si(CH 3 ) 2 —, —(CH 2 ) p — (wherein 1≦p≦10), —(CF 2 ) q — (wherein 1≦q≦10), —C(CH 3 ) 2 —, —C(CF 3 ) 2 —, or —C(═O)NH—, and
n1 is the same or different in each repeating unit, and each is independently an integer ranging from 0 to 5,

wherein, in Chemical Formula 5,
R 54 is the same or different in each repeating unit and each is independently hydrogen, or a methyl group,
R 55 and R 56 are the same or different in each repeating unit and are each independently hydrogen, or a substituted or unsubstituted C1 to C10 aliphatic group, and
R 57 is the same or different in each repeating unit and each is independently a substituted or unsubstituted C1 to C30 aliphatic group, a substituted or unsubstituted C3 to C30 alicyclic group, a substituted or unsubstituted C6 to C30 aromatic group, or a substituted or unsubstituted C2 to C30 heterocyclic group,
wherein the alicyclic group, aromatic group, or heterocyclic group is present singularly; at least two of the alicyclic group, aromatic group, or heterocyclic group are linked to provide a condensed ring; or at least two of the alicyclic group, aromatic group, or heterocyclic group are linked via a single bond, —O—, —S—, —C(═O)—, —CH(OH)—, —S(═O) 2 —, —Si(CH 3 ) 2 —, —(CH 2 ) p — (wherein 1≦p≦10), —(CF 2 ) q — (wherein 1≦q≦10), —C(CH 3 ) 2 —, —C(CF 3 ) 2 —, or —C(═O)NH—.

5. The optical film of claim 4 , wherein the repeating unit represented b

Assignees

• Samsung Electronics Co Ltd
• Cheil Ind Inc

Inventors

• Kim Hyung Jun
• Lee Moon Yeon
• In Kyu Yeol
• Kim Woo Joong
• Won Jong Hoon
• Jung Myung Sup
• Jung Won Cheol

Classifications

• C08F212/08 Primary

  Styrene · CPC title

• C08F234/02

  in a ring containing oxygen (coumarone-indene polymers C08F244/00) · CPC title

• C08F134/02 Primary

  in a ring containing oxygen · CPC title

• G02B1/04

  made of organic materials, e.g. plastics (G02B1/08 takes precedence) · CPC title

• B29K2055/00

  Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups {B29K2023/00 - B29K2049/00, e.g. having a vinyl group}, as moulding material · CPC title