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目前基于平板显示的立体显示设备有很多,比如等离子显示(PDP)和液晶显示(LCD)。这些显示设备在超过50英寸时,价格都非常昂贵。本文提出了一种新的基于单片DMD的裸眼立体显示的实现方法。在分析DLP的显示原理和利用水平视差产生立体图像的机理以及系统构件(高压汞灯、色轮、数字微镜、透镜组、屏幕等)的传输特性的基础上,使用一种算法,在FPGA中把输入的视频图像分解为带有视差的图像序列,分别送到DMD;同时产生视差同步信号,驱动执行部件。这样,在DLP显示屏前一定的区域内可以裸眼观察到立体图像。其特点是:单片DMD大屏幕显示;裸眼显示(不需佩戴特殊眼镜) ;立体景深可调;不损失器件的物理分辨率。
At present, there are many stereoscopic display devices based on flat panel displays, such as plasma display (PDP) and liquid crystal display (LCD). These displays are very expensive at over 50 inches. In this paper, a new method of implementing naked-eye stereoscopic display based on monolithic DMD is proposed. Based on the analysis of DLP display principle and the mechanism of using horizontal parallax to generate stereo images and the transmission characteristics of system components (high pressure mercury lamp, color wheel, digital micromirror, lens group, screen, etc.) In the input video image is decomposed into a sequence of images with disparity, respectively, to the DMD; at the same time generate parallax synchronization signal, drive the implementation of components. In this way, stereoscopic images can be observed with naked eyes in a certain area before the DLP display. Its features are: single-chip DMD large screen display; naked eye display (without wearing special glasses); stereoscopic depth adjustable; does not lose the physical resolution of the device.