Light field display device

A light field display device includes a display element and a switching element. The display element has a plurality of pixels. The switching element is arranged on the display element. The switching element comprises a polaroid, a liquid crystal layer and a metasurface lens array. The meta-lens array is provided with a plurality of meta-lens units which are respectively overlapped with the plurality of pixels. The polaroid, the liquid crystal layer and the meta-lens array are sequentially arranged on a plurality of pixels of the display element. 一种光场显示装置包括显示元件及切换元件。显示元件具有多个像素。切换元件设置于显示元件上。切换元件包括偏光片、液晶层及超颖透镜阵列。超颖透镜阵列具有分别重叠于多个像素的多个超颖透镜单元。偏光片、液晶层及超颖透镜阵列按序设置于显示元件的多个像素上。