Fig. 7. The preparation of broadband dynamic 3D PDLC-metasurface holographic display.

a The optical path schematic is constructed by combining a 473 nm laser (input 1), a 532 nm laser (input 2), and a 635 nm laser (input 3) through the utilization of reflector mirrors and dichroic mirrors. b Image of the integration of multiple colored light beams in a holographic reconstruction optical path. c–e A demonstration of dynamically broadband-addressed 3D holographic display (the scale bar represents 0.5 cm)