位相差層付偏光板およびそれを用いた画像表示装置

Japanese Patent JP6890160

B2

A polarizing plate with a phase difference layer is provided which is thin, has excellent handling, and excellent optical characteristics. The polarizing plate with a phase difference layer comprises a polarizing plate, which includes a polarizing film, and a protection layer on at least one side of the polarizing film, and a phase difference layer. The polarizing film is configured from a polyvinyl alcohol-base resin film containing a dichroic substance, is at most 8 [mu]m thick, and has a single transmittance of at least 43.0%, and the orthogonal absorbance per 1 [mu]m thickness at the wavelength 550 nm is greater than or equal to 0.85. Re(550) of the phase difference layer is 100-190 nm, and Re(450)/Re(550) is greater than or equal to 0.8 and less than 1. The angle formed between the slow axis of the phase difference layer and the absorption axis of the polarizing membrane is 40-50 degrees.

JP2005283730	ANTIREFLECTION FILM, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE
WO/2020/171458	METHOD FOR MANUFACTURING POLARIZING PLATE
JPS62180303	POLARIZING FILM

Shusaku Goto
Yakinuma Kankyo
Hiroshi Tomohisa
Enjoy Shimizu

JP2019183608A

June 18, 2021

October 04, 2019

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NITTO DENKO CORPORATION

G02B5/30; G02F1/1335; G02F1/13363; G09F9/30; H01L27/32; H01L51/50; H05B33/02; H05B33/14

JP2015036729A
JP2014010291A
JP2014026266A
JP2015212817A
JP2017040907A
JP2016148830A
JP2016050939A
JP2016138958A
JP2016035579A
JP2008040251A
JP2013109090A
JP2016173564A
JP2016534414A

WO2015152157A1
WO2014109299A1
KR1020150108263A
WO2016104741A1
WO2010061706A1
WO2014123184A1

Katsuto Momii

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