SUMMARYThis study involves proposing a high-speed computergenerated hologram playback by using a digital micromirror device for high-definition spatiotemporal division multiplexing electroholography. Consequently, the results indicated that the study successfully reconstructed a high-definition 3-D movie of 3-D objects that was comprised of approximately 900,000 points at 60 fps when each frame was divided into twelve parts. key words:electroholography, spatiotemporal division multiplexing method, digital micromirror device, computer-generated hologram