Optical laminated body, method of manufacturing the same, and display unit

Patent metadata

Field	Value
Publication number	US-9259906-B2
Application number	US-201213403497-A
Country	US
Kind code	B2
Filing date	Feb 23, 2012
Priority date	Mar 3, 2011
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

An optical laminated body includes a phase difference layer that has two or more kinds of phase difference regions having different directions of a slow axis from each other, a polarization plate contacted with a bottom face of the phase difference layer with a bonding layer or an adhesive layer in between, a base material contacted with a top face of the phase difference layer with a bonding layer or an adhesive layer in between, and an antireflection layer or an anti-glare layer directly contacted with a face not contacted with the phase difference layer of the base material.

First claim

What is claimed is:

1. An optical laminated body comprising:
a phase difference layer that has, in a same plane, two or more phase difference regions having different slow axis directions from each other, the phase difference layer having oppositely facing first and second faces;
a polarization plate secured to the first face of the phase difference layer by a bonding layer or an adhesive layer;
a base material with a first face secured to the second face of the phase difference layer by a bonding layer or an adhesive layer in between; and
an antireflection layer or an anti-glare layer directly secured to a second face of the b of the base material.

2. The optical laminated body of claim 1 , wherein the phase difference layer comprises two kinds of phase difference region that are stripe shaped and alternatingly arranged in the plane of the phase difference layer.

3. The optical laminated body of claim 1 , wherein the phase difference layer comprises two phase difference regions that are rectangular in shape and arranged in side-by-side relationship.

4. The optical laminated body of claim 1 , wherein the base material is transparent resin selected from the group consisting of triacetyl cellulose (TAC), cycloolefin polymer (COP), cycloolefin copolymer (COC) and polymethyl methacrylate (PMMA).

5. The optical laminated body of claim 1 , wherein the phase difference layer contains a polymerized polymer liquid crystal material.

6. The optical laminated body of claim 1 , wherein the antiglare layer.

Assignees

• Obata Kei
• Sony Corp

Inventors

• Obata Kei

Classifications

• H04N13/337

  using polarisation multiplexing · CPC title

• G02F1/133528

  Polarisers · CPC title

• B32B2457/206

  Organic displays, e.g. OLED · CPC title

• B32B2457/20

  Displays, e.g. liquid crystal displays, plasma displays · CPC title

• G02B5/3083

  Birefringent or phase retarding elements (G02B5/3008, G02B5/3016 take precedence; systems for polarisation control G02B27/286; manufacturing phase modulating patterns by lithographic processes G03F7/001) · CPC title