Time-multiplexed light field display with 120-degree wide viewing angle
Time-multiplexed light field display with 120-degree wide viewing angle
复制标题
120度宽视角时分复用光场显示
DOI：
10.1364/oe.27.035728
复制
发表时间：
2019-11-25
期刊：
影响因子：
3.8
通讯作者：
Du, Jingyan
中科院分区：
文献类型：
--
作者：
Liu, Boyang;Sang, Xinzhu;Du, Jingyan
光场显示器可以提供逼真自然的3D效果，在文物研究和展览等方面有着广泛的应用。然而，目前的光场显示器受到视角的限制，不能满足期望。采用三组定向背光源和快速切换液晶显示屏，实现了120 °宽视角的时分复用光场显示。在观看范围内构建多达192个视图，以确保正确的几何遮挡和平滑的视差运动。清晰的3D图像可以在整个视角范围内感知。此外，利用所设计的全息功能屏进行了光场重构，并对复合非球面透镜阵列进行了优化设计，以平衡像差，提高三维显示质量。实验结果表明，该光场显示器能够在120 °宽视角下显示文物的真实三维图像。(C)根据OSA开放获取出版协议的条款，2019年美国光学学会
The light field display can provide vivid and natural 3D performance, which can find many applications, such as relics research and exhibition. However, current light field displays are constrained by the viewing angle, which cannot meet the expectations. With three groups directional backlights and a fast-switching LCD panel, a time-multiplexed light field display with a 120-degree wide viewing angle is demonstrated. Up to 192 views are constructed within the viewing range to ensure the right geometric occlusion and smooth parallax motion. Clear 3D images can be perceived at the entire range of viewing angle. Additionally, the designed holographic functional screen is used to recompose the light distribution and the compound aspheric lens array is optimized to balance the aberrations and improve the 3D display quality. Experimental results verify that the proposed light field display has the capability to present realistic 3D images of historical relics in 120-degree wide viewing angle. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement