虚拟现实光学显示技术

Display technologies in virtual reality systems

随着信息技术的快速发展,对高性能虚拟现实技术及虚拟现实系统的需求与日俱增,而虚拟现实设备营造高沉浸感的关键之一在于良好的显示效果.本文介绍了当今虚拟现实领域所涉及的主要显示技术,对每种技术的原理和特点进行了分析、比较和总结.特别地,对当前虚拟现实的最主流显示方式,即头盔显示器,进行了详细的分析,并通过头盔显示技术的演变阐述当前显示技术所致力解决的问题与期望达到的目标.最后对虚拟现实中显示技术的未来发展趋势进行了展望.

With the development of information technology,the demand for high-end virtual reality（VR） techniques and such devices are increasing rapidly.And one of the key points to achieve high performance of VR devices is a high-quality display system.In this paper,the state-of-the-art display techniques in VR are discussed with their features analyzed and compared.Particularly,as the main form of VR display,head-mounted displays（HMDs） are discussed in detail.And by analyzing the hot fields in HMD technology,the special considerations and aim of display techniques in VR are expounded.The last part is the prospect of display technology in VR systems.