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Patent Searching and Data


Title:
POLARIZING PLATE HAVING PHASE DIFFERENCE LAYER ATTACHED THERETO, AND ORGANIC EL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/203121
Kind Code:
A1
Abstract:
Provided is a polarizing plate having a phase difference layer attached thereto, which has excellent heat resistance. The polarizing plate having a phase difference layer attached thereto according to the present invention is provided with a polarizing plate, a first phase difference layer, a first adhesive agent layer, a second phase difference layer and a second adhesive agent layer in this order, wherein each of the first and second phase difference layers contains a liquid crystal compound, the first adhesive agent layer has a thickness of 8 μm or less and an elastic modulus of 105 to 106 Pa at 25°C, and the second adhesive agent layer is made from an adhesive agent that contains an alkyl (meth)acrylate in an amount of 70% by weight or more in a base polymer and has an elastic modulus of 5.0 × 105 Pa or less at 25°C.

Inventors:
KOJIMA Tadashi (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
KITAGAWA Takeharu (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
FUJITA Masakuni (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
YAGINUMA Hironori (1-1-2 Shimohozumi, Ibaraki-sh, Osaka 80, 〒5678680, JP)
Application Number:
JP2019/015822
Publication Date:
October 24, 2019
Filing Date:
April 11, 2019
Export Citation:
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Assignee:
NITTO DENKO CORPORATION (1-1-2, Shimohozumi Ibaraki-sh, Osaka 80, 〒5678680, JP)
International Classes:
G02B5/30; C09J7/38; C09J133/04; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
WO2018066200A12018-04-12
Foreign References:
JP2016118771A2016-06-30
JP2009244486A2009-10-22
JP2017054093A2017-03-16
JP2017204007A2017-11-16
Attorney, Agent or Firm:
MOMII Takafumi (7th Floor, Aqua Dojima East 1-4-4, Dojimahama, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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