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Patent Searching and Data


Title:
POLARIZING FILM, LAMINATED POLARIZING FILM, IMAGE DISPLAY PANEL, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/200390
Kind Code:
A1
Abstract:
Provided is a polarizing film obtained by sticking a transparent protective film on one surface or both surfaces of a polarizing membrane, wherein the polarizing membrane contains a water-soluble radical scavenger, and satisfies the condition of the ratio between lengths represented by general expression (X): 2.0 ≤ a/b (where a is the length (mm) parallel to the absorption axis of the polarizing membrane and has a value exceeding 200, and b is the length (mm) orthogonal to the absorption axis of the polarizing membrane). The polarizing film has a high aspect ratio, and has an excellent effect of suppressing occurrence of a lateral crack in a direction parallel to the absorption axis of the polarizing film under a high-temperature environment.

Inventors:
SUEFUSA EIKO (JP)
IZAKI AKINORI (JP)
YAMASHITA TOMOHIRO (JP)
KURODA TAKUMA (JP)
Application Number:
PCT/JP2021/011932
Publication Date:
October 07, 2021
Filing Date:
March 23, 2021
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; G02F1/1335
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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