摘要
近眼显示器可将数字世界与物理世界无缝融合,有望成为下一代增强现实显示终端。视网膜投影显示(Retinal projection displays,RPD)技术因其具有无辐辏-聚焦冲突、高光效、大视场等优点,是近眼显示领域的研究热点之一。本文回顾了RPD技术的发展,阐述了RPD的基本工作原理,综述了RPD及其出瞳拓展方面的最新进展,并对其未来的前景进行了展望。未来通过结合全息波前调控与全息光学元件(HOE)的优点,有望实现大出瞳、高系统自由度的轻薄化RPD近眼显示。
Near-eye displays,which seamlessly integrate the digital and physical worlds,are expected to become the next generation of augmented reality display terminals.Retinal projection displays(RPD)technology is one of the research hotspots in the field of near-eye display due to its advantages of conver⁃gence-conflict free,high light efficiency and large field of view.In this paper,the development of RPD technology is reviewed,the basic working principle of RPD is described,the latest progresses of RPD and its eyebox expansion are reviewed,and the future prospect of RPD is forecasted.In the future,by combin⁃ing the advantages of holographic wavefront control and holographic optical element(HOE),it is expected to realize a lightweight RPD near eye display with large eyebox and high system freedom.
作者
张旭
王梓
屠科锋
陈涛
庞煜剑
吕国强
冯奇斌
ZHANG Xu;WANG Zi;TU Ke-feng;CHEN Tao;PANG Yu-jian;LYU Guo-qiang;FENG Qi-bin(School of Instrumentation and Opto-Electronics Engineering,Hefei University of Technology,Hefei 230009,China;National Engineering Laboratory of Special Display Technology,Academy of Photoelectric Technology,Hefei University of Technology,Hefei 230009,China)
出处
《液晶与显示》
CAS
CSCD
北大核心
2022年第5期639-646,共8页
Chinese Journal of Liquid Crystals and Displays
基金
国家自然科学基金(No.61805065)。
关键词
近眼显示
增强现实
视网膜投影
出瞳拓展
near eye displays
virtual reality
augmented reality
retinal projection displays
eyebox expansion
作者简介
张旭(1995-),男,安徽亳州人,博士研究生,2016年于电子科技大学获得学士学位,主要从事3D显示、全息显示、近眼增强现实显示、抬头显示等方面的研究。E-mail:zhangxu831@mail.hfut.edu.cn;通信联系人:王梓(1991-),男,安徽合肥人,博士,副研究员,2017年于中国科技大学获得博士学位,主要从事全息3D显示、增强现实近眼显示等方面的研究。E-mail:wangzi@hfut.edu.cn。
