UV-blocking adhesive composition, method for producing an adhesive resin using the same, and adhesive film produced using the same
The UV-blocking adhesive composition with a visible light-activated photoinitiation system addresses transparency and resin conversion issues in foldable smartphone displays by using a photocatalyst with thermally activated delayed fluorescence, ensuring high resin conversion and clarity.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- ヴィスキュア インコーポレイティッド
- Filing Date
- 2024-04-19
- Publication Date
- 2026-06-08
AI Technical Summary
Conventional UV-curing adhesives used in display panels of foldable smartphones face challenges in maintaining optical transparency and resin conversion rate when incorporating UV-blocking agents, as they either hinder photocuring or reduce visible light transparency.
An ultraviolet-blocking adhesive composition utilizing a photoinitiation system activated by visible light, comprising a polymerizable monomer, a photocatalyst with thermally activated delayed fluorescence properties, and a co-initiator, which initiates curing reactions in the 300 to 800 nm wavelength range, allowing for high resin conversion and transparency.
The adhesive composition achieves excellent monomer polymerization rates and optical transparency, enabling effective UV-blocking without compromising the adhesive's clarity and bonding strength, suitable for use in foldable smartphone displays.
Smart Images
Figure 2026518428000001_ABST