Xuewu XU^*, Xinan LIANG, Yuechao PAN, Ruitao ZHENG, and Zhiming Abel LUM

Data Storage Institute, A^*STAR (Agency for Science, Technology and Research), DSI Building, 5 Engineering Drive 1, Singapore 117608

(Received November 13, 2013; Accepted March 18, 2014)

We propose a new approach to spatiotemporally multiplex sub-holograms and stream hologram data in parallel by using multiple spatial light modulators (SLMs) to increase the spatiotemporal resolution of holographic display system. With the proposed approach, we have achieved a spatiotemporal resolution of 4.5× 10¹⁰ pixel/s, as compared with 1.89× 10⁹ pixel/s of a single SLM. Each frame of computer-generated hologram video has a pixel count of 378 Mpixels and is divided into 288 sub-holograms, each of 1.31 Mpixels. During the playback of holographic video, these sub-holograms are spatiotemporally multiplexed and streamed in parallel to form the integrated hologram within 16.67 ms, which enables full-color holographic video display with a 10-in. diagonal at a hologram data frame rate of 60 frames per second (fps). New SLM devices with higher spatiotemporal resolution need to be developed in order to meet the data bandwidth requirement of about 10¹²–10¹⁴ pixel/s for future 3D holographic displays.

Key words: holographic display, full-color, computer-generated hologram, spatiotemporal multiplexing, data streaming, bandwidth

^*E-mail address: XU{_}Xuewu@dsi.a-star.edu.sg