Title:
偏光板およびその製造方法、ならびに該偏光板を含む画像表示装置
Document Type and Number:
Japanese Patent JP7376494
Kind Code:
B2
Abstract:
Provided is a polarizing plate which has excellent durability even under severe heating environments. The polarizing plate according to the present invention includes a polarizing film having a thickness not more than 8 μm, and protection films disposed on both sides of the polarizing film, wherein the change amount ΔP of the polarization degree after being kept at 100°C for 60 hours in a condition where glass plates are stuck to both surface of the polarizing plate with adhesive layers therebetween is -1.0% to 0.0%, the change amount ΔP being expressed by formula: ΔP(%)=P60-P0 (in the formula, P0 represents the polarization degree before heating, and P60 represents the polarization degree after heated for 60 hours).
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Inventors:
Tomohiro Yamashita
Shusaku Goto
Shusaku Goto
Application Number:
JP2020547953A
Publication Date:
November 08, 2023
Filing Date:
May 24, 2019
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
G02B5/30; B32B7/023
Domestic Patent References:
| JP201797087A | ||||
| JP201825793A | ||||
| JP201810322A | ||||
| JP868908A |
Foreign References:
| WO2017130656A1 | ||||
| WO2015137514A1 | ||||
| WO2017047408A1 | ||||
| WO2017145607A1 | ||||
| WO2018038028A1 |
Attorney, Agent or Firm:
Takafumi Momii