Color image generation of viewing-zone-scanning holographic displays using time-multiplexing techniques without a...

A holographic display typically encounters the challenge of a limited viewing zone angle. Utilizing a pulse-modulated microelectromechanical system-spatial light modulator (MEMS-SLM) that involves the rotation of MEMS mirrors and the use of short laser pulses, this technology has successfully expanded the viewing zone angle without requiring a mechanical scanning optical system. However, such displays have been limited to monochromatic output. This study introduces a technique for generating full-color images using an RGB fiber array as the illumination source in holographic displays employing pulse-modulated MEMS-SLM. The system achieves high energy efficiency to produce color images by sequentially illuminating the lasers and by applying a time-multiplexing technique. Our experiments demonstrated a wide color viewing zone angle of 37° at 59.2 Hz.