研究目的
To develop a transparent colored static display using a flat glass waveguide and embedded multi-layer gratings for multiple patterns and colors with a wide field of view.
研究成果
The study demonstrates a low-cost, easy-to-fabricate transparent display with a wide FOV, suitable for colored signage and decorative applications. Future work could explore dynamic displays and full-color capabilities.
研究不足
The patterns demonstrated are static, and achieving dynamic or full-color display would require electronically switchable gratings. Scaling up to a large display area remains challenging.
1：Experimental Design and Method Selection:
The display consists of a flat glass waveguide and embedded multi-layer gratings fabricated by nanoimprinting and deposition of a high refractive index dielectric layer.
2：Sample Selection and Data Sources:
Rectangular and hexagonal shaped glass with all edges polished for light input.
3：List of Experimental Equipment and Materials:
UV-curable polyurethane acrylate (PUA) resin, titanium dioxide (TiO2), silica mold, electron beam evaporation.
4：Experimental Procedures and Operational Workflow:
Nanoimprint lithography followed by TiO2 deposition, repeated for multi-layer gratings.
5：Data Analysis Methods:
Backward ray-tracing strategy to estimate the maximum FOV and display area.
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