当今，在二维平面显示器流行的时代，一种三维立体显示器及其相关技术正在迅速兴起.通过介绍常用的几种表示三维数据的显示方式，解释了基于体素的三维显示技术，并介绍说明了三维显示技术的几种主要类型，然后在此基础上，又重点介绍了真三维立体显示技术的基本原理、主要技术的发展过程，并对采用该技术的几种主要产品的基本原理进行了必要的说明 ;接着解释了真三维立体显示器的一些主要性能参数，比较了几种目前最新产品的性能 ;最后，对真三维显示器的应用前景作了简要阐述.

Now the people get the 3D effects by rotating the 2D images on the planar screen. But the effects are limited. They only can get the psychology depth, not the physical depth. In order to get the true 3D effects, some new technologies of 3 D volumetric display are coming up now. The volumetric display is basing on the "Voxel" (Volumetric pixel). This paper explains some main types of the 3D volumetric display technologies. Of them, a new 3D display technique is superior, which is called "True 3D Volumetric Display". Its scientific design can make the real depth cue. The observer can watch the 3D image from any angles without the special glass and get the different cue theoretically. It includes two realization method: Swept Volume display and Static Volume display. This paper emphasizes the basic theory, the history and the actuality of the volumetric display technologies. Then, it introduces some of main performances, and compares the performances of some products. Specially, it describe the theory of the rotating imaging in brief.At last, the true 3D volumetric display's application also is illuminated. In our country, the related research is empty. Also the application is null. But some applications has been used outside, such as the Air Control System in civil aviaton, the product exhibition in the advertising.