发明名称 |
METHOD FOR PREPARING POLYENE-BASED POLARIZING FILM, POLYENE-BASED POLARIZING FILM, LAMINATE POLARIZING FILM, AND DISPLAY DEVICE |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for preparing a polyene-based polarizing film that is new and improved and gives transmitted light to be closer to white light while maintaining high levels of transmittance and polarization degree, and a polyene-based polarizing film, a laminate polarizing film, and a display device.SOLUTION: In one aspect of the present invention, the method for preparing a polyene-based polarizing film includes steps of: producing a dehydrated film by subjecting a polyvinyl alcohol film to a dehydration reaction using an acid catalyst; producing a hydrated film by impregnating the dehydrated film with a hydrating aqueous solution having a pH of 4.0 or less at 85°C or higher for 0.5 to 60 minutes; producing a hydrated dyed film by immersing the hydrated film in a boric acid dye bath; and subjecting the hydrated dyed film to wet orientation in an acidic aqueous solution at 65°C or lower.</p> |
申请公布号 |
JP2015132796(A) |
申请公布日期 |
2015.07.23 |
申请号 |
JP20140137376 |
申请日期 |
2014.07.03 |
申请人 |
CHEIL INDUSTRIES INC |
发明人 |
KOBORI SHIGETO;TAKAGI TAKASHI;SATO ATSUSHI |
分类号 |
G02B5/30;H01L51/50;H05B33/02 |
主分类号 |
G02B5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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