Optical film and polarizing plate
By using a (meth)acrylic resin layer and rubber particles with specific composition and structure in the polarizer, the problem of adhesion between the polarizer and the resin film under high temperature and high humidity conditions was solved, thus improving the durability of the polarizer.
CN116745122BActive Publication Date: 2026-06-12HUBEI LIYOU OPTOELECTRONICS TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUBEI LIYOU OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2022-02-15
- Publication Date
- 2026-06-12
Smart Images
Figure CN116745122B_ABST
Abstract
The present application provides a (meth)acrylic resin-based optical film capable of improving adhesion to a polarizing plate when placed in a high-temperature and high-humidity environment. The present application provides an optical film having a resin layer containing a (meth)acrylic resin, for which, when the tensile elastic modulus in the MD direction at 23°C is set as E23(MD) and the tensile elastic modulus in the TD direction at 23°C is set as E23(TD), 0.5 ≤ E23(TD) / E23(MD) ≤ 1.5 is satisfied, and the absorbed energy of the resin layer determined using the Charpy impact test at 23°C is 140 kJ / m 2 The above.
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