为了实现低串扰、全分辨、多视点的三维显示效果，搭建了多指向型背光源的三维显示系统。本系统由人眼追踪模块获取双目位置并反馈到多指向型背光源和液晶显示屏，多指向型背光源和液晶显示屏协同时序产生快速切换的左右眼视差图像。由于人眼的视觉暂留效应，观看者可感知到三维图像。多指向型背光源主要由一列柱面光源和体全息光学器件实现，不同柱面光源经体全息光学器件将产生不同方向的衍射光束。为了改善本系统显示不均匀现象，提出了双LED式和扩散屏式两种方法。实验结果表明：本系统可提供全分辨的三维图像，且均匀度提高至80%，平均串扰值低至2.75%，实现了25个显示视点，满足了三维显示对串扰、分辨率、均匀度等方面的要求，观看者的视觉体验大幅提升。

An autostereoscopic display system with a bicylindrical lens based on temporal-spatial multiplexing technique is introduced in this paper. The system comprises a directional scanning backlight, a liquid crystal display panel with high refreshing rate, and an eye tracking device. The directional scanning backlight consists of an LED board, two lenticular lens arrays with matching periods, a parallax barrier film, and other optical films. One of the lenticular lenses is a bicylindrical lens designed to reduce aberration, hence achieving better image quality. A prototype is set up based on the proposed structure. A series of experiments are conducted, and the overall performance of the prototype is evaluated. The LEDs are divided into 10 groups that form 10 view zones. On the one hand, it achieves full resolution in both 2D and 3D display modes. On the other hand, the viewing angle is increased to ±26deg. Most importantly, the crosstalk is low. The minimum crosstalk is 6%, and the maximum crosstalk is 8.8% at a viewing angle of ±22deg.