Adhesive composition, adhesive sheet, polarizing plate with adhesive, and image display device

By adjusting the basic polymer composition of the adhesive composition and adding ultraviolet absorbers, the problem of polarizer fading in high temperature and high humidity environments was solved, achieving high durability and transmittance stability of the image display device.

CN113969123BActive Publication Date: 2026-07-14NITTO DENKO CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NITTO DENKO CORP
Filing Date
2021-07-16
Publication Date
2026-07-14

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Abstract

The present invention relates to an adhesive composition, an adhesive sheet, a polarizing plate with an adhesive, and an image display device. The adhesive composition of the present invention is used for producing an adhesive sheet which is used for the attachment of a polarizer to a cover window, and is disposed in contact with the polarizer. When a test piece in which the adhesive sheet formed using the adhesive composition is disposed in contact with the polarizer is subjected to a damp heat test in which it is left in an environment at a temperature of 85°C and a relative humidity of 85% for 100 hours, the amount of change in transmittance before and after the damp heat test is within a prescribed range.
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