Provided is a polarizing plate in which the occurrence of cracking is suppressed even in a harsh environment such as a heat shock test. A polarizing plate according to the present invention has a polarizer and a protective layer disposed on at least one side of the polarizer, and the surface roughness Sdr according to ISO 25178 of a polarizer end face is 12 percent or more. In one embodiment, the thickness of the polarizer is 20 micro m or less. In one embodiment, the polarizing plate has a shape other than a rectangle. A retardation-layer-equipped polarizing plate according to the present invention includes the abovementioned polarizing plate and a retardation layer, the retardation layer being disposed on the side opposite to the side of the polarizer on which the protective layer is disposed.
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Patent|
May 10 2023
POLARIZING PLATE, RETARDATION-LAYER-EQUIPPED POLARIZING PLATE, AND IMAGE DISPLAY DEVICE INCLUDING SAID POLARIZING PLATE OR SAID RETARDATION-LAYER-EQUIPPED POLARIZING PLATE
1-1-2, Shimohozumi, Ibaraki-shi, Osaka 5678680 ?5678680 JP
Journal: PCT International Patent Application
Citation: PCT International Patent Application (2023)
Published: 2022
Citation
MATSUYAMA HIRONORI, MURANAGA KANAKO, ANTOKU YURI; POLARIZING PLATE, RETARDATION-LAYER-EQUIPPED POLARIZING PLATE, AND IMAGE DISPLAY DEVICE INCLUDING SAID POLARIZING PLATE OR SAID RETARDATION-LAYER-EQUIPPED POLARIZING PLATE. IFIS Food and Health Sciences Database 2023; doi:
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