With the development of the information technology era, metaverse has gradually become the third internet revolution, and the metaverse terminal is an important component of it. This article describes the development trends and key technologies of the hardware part of the metaverse terminal in terms of micro displays, optical systems, and perceptual interactions. In terms of the micro display technology, two technologies, silicon based OLED and MicroLED, are mainly discussed; in terms of optical systems, the main topics discussed are surface relief grating waveguide technology, volume holographic waveguide technology, and metasurface waveguide technology; in terms of perceptual interaction, the interaction technology of gesture recognition and EEG recognition is mainly discussed.

metaverse  /  virtual reality (VR)  /  augmented reality (AR)  /  microdisplays  /  perceptual interaction  /  artificial intelligence