Styrene resin composition for optical use, molded body, light guide plate, and edge light type surface light source unit
By controlling the content of styrene monomers, linear dimers, and linear trimers in the styrene-based resin composition, and by adding hindered amine light stabilizers and phosphorus-based antioxidants, the problem of insufficient light stability of the light guide plate under high-brightness LED light sources was solved, and the color uniformity and thermal stability were improved.
Patent Information
- Application Number
- CN202610544629.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-03-29
- Filing Date
- 2024-03-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing light guide plate materials are prone to yellowing at the end face after prolonged use with high-brightness LED light sources, and their light stability is insufficient when using blue mini LEDs and quantum dot displays. Furthermore, traditional styrene-(meth)acrylate copolymers suffer from uneven color and thermal decomposition issues.
By controlling the content of styrene monomers, linear dimers, and linear trimers in a styrene-based resin composition within a specific range, and by adding hindered amine light stabilizers and phosphorus-based antioxidants, an optical styrene-based resin composition with excellent light stability is formed.
It improves the light stability of the light guide plate, avoids yellowing of the end face, improves color uniformity and thermal stability, and meets the long-term use requirements of high-brightness LED light sources.
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Abstract
Citation Information
Patent Citations
Light guide plate
JP2003075648A
Styrene-based optical resin composition
WO2016129675A1