A low-haze, high-modulus optical film, its preparation method and application
By combining biaxial stretching and hot-cold roller processing, a low-haze, high-modulus optical film is prepared, and an inorganic-organic composite functional layer is formed on the surface. This solves the shortcomings of existing optical film materials in terms of transmittance, haze, and mechanical properties, and enables high-performance, low-cost optical film applications.
CN122307794APending Publication Date: 2026-06-30GUNA (GUANGZHOU) MATERIALS TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUNA (GUANGZHOU) MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2026-04-14
- Publication Date
- 2026-06-30
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Figure CN122307794A_ABST
Abstract
This invention relates to the field of optical film technology, and more particularly to a low-haze, high-modulus optical film, its preparation method, and its applications. The optical film prepared by this invention achieves controllable preparation of a high-performance optical film through a combination of "preliminary stretching + secondary stretching" and "cold pore closing + heat setting" processes. The process is stable and repeatable, successfully combining traditionally difficult-to-achieve properties such as high transmittance (>95%), extremely low haze (<1%), high surface hardness (>3H), foldability (>200,000 times), and a wide-range adjustable Young's modulus (5-25 GPa).
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