Title:
RETARDATION PLATE AND CIRCULARLY POLARIZING PLATE
Document Type and Number:
WIPO Patent Application WO/2016/114254
Kind Code:
A1
Abstract:
Provided is a retardation plate formed by laminating at least two retardation plates, being a retardation plate 1 and a retardation plate 2, wherein at least one of the retardation plate 1 and the retardation plate 2 is formed from a polymer of a polymerizable liquid crystal composition, and the retardation Re(450), at a wavelength of 450 nm, and the retardation Re(550), at a wavelength of 550 nm, of the retardation plate 1 and the retardation plate 2 have a predetermined relationship. Also provided are a circularly polarizing plate formed by laminating a polarizing plate on the retardation plate, and a display element or a light-emitting element comprising the circularly polarizing plate. The present invention is useful because with the present invention, it is possible to provide: a retardation plate that imparts a retardation of 1/4 wavelength over a wide wavelength range; a circularly polarizing plate having an excellent antireflection ability over a wide wavelength range; and a display element or a light-emitting element having excellent visibility.
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Inventors:
ISHII TORU (JP)
ONO YOSHIYUKI (JP)
ONO YOSHIYUKI (JP)
Application Number:
PCT/JP2016/050662
Publication Date:
July 21, 2016
Filing Date:
January 12, 2016
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
G02B5/30; C08F20/00; C09K19/38; C09K19/54; H01L51/50; H05B33/02
Domestic Patent References:
| WO2000026705A1 | 2000-05-11 | |||
| WO2014132978A1 | 2014-09-04 | |||
| WO2013146633A1 | 2013-10-03 | |||
| WO2015166991A1 | 2015-11-05 |
Foreign References:
| JP2013003212A | 2013-01-07 | |||
| JP2003270435A | 2003-09-25 | |||
| JP2007304444A | 2007-11-22 | |||
| JP2009134257A | 2009-06-18 | |||
| JP2008165185A | 2008-07-17 |
Attorney, Agent or Firm:
KONO MICHIHIRO (JP)
Michihiro Kono (JP)
Michihiro Kono (JP)
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