METHOD FOR PRODUCING POLARIZING FILM

Title:

METHOD FOR PRODUCING POLARIZING FILM

Document Type and Number:

WIPO Patent Application WO/2023/218820

Kind Code:

A1

Abstract:

Provided is a polarizing film which has an excellent appearance and can contribute to an improvement in the display characteristics of an image display device. A method for producing a polarizing film according to an embodiment of the present invention comprises, in the following order: a first step for bringing an iodine-containing resin film having a first transmittance (T1) into contact with a first liquid to increase the transmittance of the resin film to a second transmittance (T2); and a second step for bringing the resin film into contact with a second liquid to lower the transmittance of the resin film to a third transmittance (T3).

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Inventors:

KOJIMA TADASHI (JP)
GOTO SHUSAKU (JP)

Application Number:

PCT/JP2023/014364

Publication Date:

November 16, 2023

Filing Date:

April 07, 2023

Export Citation:

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Assignee:

NITTO DENKO CORP (JP)

International Classes:

G02B5/30; G02F1/1335; H05B33/02; H05B33/14; H10K50/86; H10K59/10

Foreign References:

JP2004013005A	2004-01-15
CN112248611A	2021-01-22

Attorney, Agent or Firm:

MOMII Takafumi (JP)

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