集成成像3D显示器性能提升的理论与技术研究

Many kinds of 3D displays have been proposed so far, such as glasses aided 3D display, auto-stereoscopic 3D display, integral imaging (II) 3D display, volumetric 3D display and holographic 3D display. Among them, II 3D display is regarded as one of the most promising and convenient ways for 3D televisions, because it works without incoherent light, and provides 3D images without the help of any special glasses and it has a small data volume. II 3D display has been widely studied by scientists at home and abroad and many useful methods for performance improvement have been proposed. However, they mainly focused on the techniques and artworks instead of theoretical researches, and it's very hard to resolve the bottlenecks of performance improvement in II 3D display. This project will study the II 3D display's theory and technology in-depth, and the research contents are organized as follows: building up a theoretical model, revealing the internal factors which affect the II' 3D performances, illustrating the restrictive relations among the 3D parameters and constructing the performance improvement theory. Based on the theories, we propose several technologies, such as sub-pixel based one-dimensional II, variable focal length based blue phase micro-lens array II, enlarged elemental image pitch II, and curved display panel based II, to improve the II 3D display's 3D resolution, 3D depth, 3D viewing angle and other performances. This work will provide positive guidance for the development of high performance II 3D display devices.

较之助视/裸视光栅3D显示、体3D显示和全息3D显示，集成成像3D显示具有不需要特殊成像介质和相干光源，无视疲劳且数据量相对较少等优点，是最有希望实现3D电视的真3D显示技术之一。国内外众多的研究团队对集成成像3D显示进行了研究，虽然取得了不少进展，但由于缺乏较深入和系统的理论研究，因此很难突破集成成像3D显示器性能提升的瓶颈问题。本项目拟对集成成像3D显示器性能提升进行理论研究和技术突破，分别包括：拟建立集成成像3D显示的理论模型，揭示影响集成成像3D显示器性能的内在因素，解决各性能参数间相互制约关系等科学问题，建立集成成像3D显示器性能提升的相关理论；拟通过基于子像素的一维集成成像、基于可变焦蓝相液晶微透镜阵列的集成成像、增大图像元节距和弯曲显示屏等技术，有效提升集成成像3D显示器的3D分辨率、3D深度、3D视角和整体性能。该研究工作将为高性能集成成像3D显示器的研制提供参考。

本项目进行了集成成像 3D 显示器性能提升的理论与技术研究，探索了提高集成成像 3D 显示性能的内在因素，为高性能集成成像 3D 显示器的研制提供了理论指导。取得了如下重要成果：1. 提出并研制了采用平凸微透镜阵列及平板阵列的大深度集成成像3D显示；2. 进行了集成成像3D显示焦点调节与集合的研究，得出集成成像3D显示没有立体观看视疲劳；3. 突破了基于空间滤波的集成成像深度扩展技术；4. 提出并研制了基于棱锥针孔阵列的无串扰集成成像3D显示装置；5. 提出并研制了使用复合微透镜阵列的视角增强型集成成像显示器。项目组发表论文 28 篇，其中SCI论文 13 篇，申请国家发明专利13件，其中8件授权，培养15名研究生。