Affiliation:
1. National Cheng Kung University
Abstract
Augmented reality (AR) and virtual reality (VR) have the potential to
revolutionize the interface between our physical and digital worlds.
Recent advances in digital processing, data transmission, optics, and
display technologies offer new opportunities for ubiquitous AR/VR
applications. The foundation of this revolution is based on AR/VR
display systems with high image fidelity, compact formfactor, and high
optical efficiency. In this review paper, we start by analyzing the
human vision system and the architectures of AR/VR display systems and
then manifest the main requirements for the light engines. Next, the
working principles of six display light engines, namely transmissive
liquid crystal display, reflective liquid-crystal-on-silicon
microdisplay, digital light processing microdisplay, micro
light-emitting-diode microdisplay, organic light-emitting-diode
microdisplay, and laser beam scanning displays, are introduced.
According to the characteristics of these light engines, the
perspectives and challenges of each display technology are analyzed
through five performance metrics, namely resolution density, response
time, efficiency/brightness/lifetime, dynamic range, and compactness.
Finally, potential solutions to overcoming these challenges are
discussed.
Subject
Atomic and Molecular Physics, and Optics
Cited by
41 articles.
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