近年来三维显示技术得到了学术界与工业界的广泛关注, 其目标是使观察者在不佩戴任何辅助设备的情况下, 使用裸眼观察到与实际物体近乎一致的三维图像。基于多层半透明薄膜结构实现了在平面上的三维显示。与传统的三维显示技术相比, 这种显示技术的分辨率与对比度更高, 结构也更加简单, 易于制造。基于这种多层平面三维显示原型, 进一步利用镜面反射原理, 将其扩展成空间三维显示, 使观察者可以在半空中多角度观察到虚拟的三维物体。

Three-dimensional display technology, which aims at presenting almost-realistic three-dimensional images to the observer without any auxiliary devices, has drawn great attention from both academia and industry in recent years. In this paper, we implement a flat three-dimensional display using multi-layer semitransparent thin film structure. Compared to traditional three-dimensional display technologies, the proposed display technology has higher resolution, higher contrast, and simpler structure, thus easier to fabricate. Based on our prototype of flat three-dimensional display with multi-layer, we further extend it to spatial three-dimensional display using the principle of specular reflection, which allows observers to see virtual three-dimensional objects from different directions in the air.