Optical device
A stack with a UV adhesive and laser-light debond layer facilitates zero peel force debonding of LC cells from glass substrates, ensuring uniform quality and enabling their use in plastic applications.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- FLEXENABLE TECH LTD
- Filing Date
- 2025-11-28
- Publication Date
- 2026-06-04
AI Technical Summary
Current methods for debonding liquid crystal (LC) cells from glass substrates often result in non-uniform cell quality due to the use of carrier adhesives with non-uniform surfaces or polyimide substrates that limit thermoforming and introduce color issues, making it difficult to achieve zero peel force during demounting.
A stack comprising a device substrate layer, a double-sided UV adhesive layer, and a laser-light debond layer is used, where the substrate is exposed to high-intensity light to break down the adhesive, allowing for zero peel force debonding without affecting the LC cell quality.
The method ensures uniform LC cell quality by using a laser-light debond layer in combination with a UV adhesive, enabling efficient separation from glass substrates while maintaining cell integrity and allowing for further use in plastic implementations.
Smart Images
Figure EP2025084745_04062026_PF_FP_ABST