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Title:
PHASE DIFFERENCE PLATE HAVING OPTICAL COMPENSATION FUNCTION FOR FLEXIBLE DISPLAY
Document Type and Number:
WIPO Patent Application WO/2019/039287
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a phase difference plate having an optical compensation function for flexibility, the method being such that no crumples, cracks, or other such imperfections are produced even when the phase difference plate is bent, and no external light is reflected in a colored state even when the phase difference plate has been folded. This manufacturing method pertains to manufacturing a phase difference plate having an optical compensation function for a flexible display through a method that comprises: forming a horizontally oriented film through steps for application, drying, and orientation processing; subsequently forming a horizontally oriented liquid crystal cured film through steps for application, drying, and ultraviolet irradiation; furthermore forming a vertically oriented film through steps for application and drying; and forming a vertically oriented liquid crystal cured film through steps for application, drying, and ultraviolet irradiation; the horizontally oriented film, the horizontally oriented liquid crystal cured film, the vertically oriented film, and the vertically oriented liquid crystal cured film being formed in the stated order.

Inventors:
KASAI, Tatsuaki (LIMITED 1-98, Kasugadenaka 3-chome, Konohana-ku, Osaka-sh, Osaka 58, 〒5548558, JP)
HATANAKA, Nobuyuki (LIMITED 1-98, Kasugadenaka 3-chome, Konohana-ku, Osaka-sh, Osaka 58, 〒5548558, JP)
Application Number:
JP2018/029756
Publication Date:
February 28, 2019
Filing Date:
August 08, 2018
Export Citation:
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Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED (27-1, Shinkawa 2-chome Chuo-k, Tokyo 60, 〒1048260, JP)
International Classes:
G02B5/30; H01L51/50; H05B33/02; H05B33/14
Domestic Patent References:
WO2015111474A12015-07-30
WO2016010026A12016-01-21
WO2017183682A12017-10-26
WO2016047517A12016-03-31
WO2016204020A12016-12-22
Foreign References:
JP2006276817A2006-10-12
JP2001183643A2001-07-06
JP2004118185A2004-04-15
JP2014063143A2014-04-10
JP2008249819A2008-10-16
JP2008250333A2008-10-16
JP2017062362A2017-03-30
JP2017141433A2017-08-17
JP2013007809A2013-01-10
JP2008233814A2008-10-02
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (LIMITED 5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 50, 〒5418550, JP)
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