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Title:
ELLIPTICAL POLARIZING PLATE
Document Type and Number:
WIPO Patent Application WO/2018/016360
Kind Code:
A1
Abstract:
[Problem] To provide an elliptical polarizing plate in which alignment defects or optical axis deviation is suppressed. [Solution] In this elliptical polarizing plate, an alignment layer A, a phase difference layer, an alignment layer B, and a polarization layer are provided in this order on a transparent substrate, the optical axes of the polarization layer and the phase difference layer are essentially non-parallel, the phase difference layer is a film configured from a polymer of a polymerizable liquid crystal compound, the alignment layer B is a film having a thickness of 80 nm to 800 nm, and the polarization layer is obtained by aligning a dichroic pigment in a film configured from a polymer of a polymerizable liquid crystal compound.

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Inventors:
KASAI TATSUAKI (JP)
HATANAKA NOBUYUKI (JP)
Application Number:
PCT/JP2017/025074
Publication Date:
January 25, 2018
Filing Date:
July 10, 2017
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; G02F1/1335; G02F1/13363; G09F9/30; H01L27/32; H01L51/50; H05B33/02; H05B33/10
Domestic Patent References:
WO2006093131A12006-09-08
Foreign References:
JP2014063143A2014-04-10
JP2001330726A2001-11-30
JP2001330719A2001-11-30
JP2005352320A2005-12-22
JP2013101328A2013-05-23
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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