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Title:
OPTICAL SHEET AND DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2014041212
Kind Code:
A
Abstract:

To improve stability of an optical sheet that controls an advancing direction of light in accordance with a polarization state of the light.

An optical sheet 40 is used for a display device that switchably displays a two-dimensional image and a three-dimensional image visible by naked eyes. The optical sheet 40 includes an optically anisotropic first layer 51 containing a thermoplastic resin, and a second layer 52 laminated to the first layer. An optical interface 55 that changes the advancing direction of light having one polarization component is formed between the first layer 51 and the second layer 52. An optical conversion layer 61 is laminated on an observation side of the first layer 51 and the second layer 52; and the polarization state of the light transmitted through the first layer 51 and the second layer 52 is further changed by the optical conversion layer 61.


Inventors:
ARAKAWA FUMIHIRO
KOMIZO KOHEI
KURODA TAKASHI
Application Number:
JP2012182664A
Publication Date:
March 06, 2014
Filing Date:
August 21, 2012
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G02B3/00; G02B3/06; G02B30/25; G03B35/26
Domestic Patent References:
JP2004534972A2004-11-18
JP2009237461A2009-10-15
JP2011107198A2011-06-02
JPH1010522A1998-01-16
JP2010078653A2010-04-08
JPH06258634A1994-09-16
JP2010510552A2010-04-02
JP2009242752A2009-10-22
JP2008521042A2008-06-19
JPH1010523A1998-01-16
JP2004534972A2004-11-18
JP2009237461A2009-10-15
JP2011107198A2011-06-02
JPH1010522A1998-01-16
JP2010513970A2010-04-30
Attorney, Agent or Firm:
Hirohito Katsunuma
Hiroyuki Nagai
Katsuomi Isogai
Yukihiro Hotta



 
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