基于双面光栅的LED三维立体显示系统的研制

LED显示屏已被广泛应用于户外大型显示,将3D显示技术应用到LED显示上已经成为LED显示的新的热点和方向。针对LED显示屏上各个LED显示单元之间上下左右出现倾斜、歪曲,表面出现凹凸不平等现象,导致传统的光栅很难精确对齐、3D串扰很大的问题,提出了一种新型的双面光栅。其中,后光栅用于保证组成LED显示屏的每个LED子像素的发光中心点在水平和垂直方向保持一致,前光栅则用于立体分光。同时,还设计了LED三维立体显示系统,以ARM作为视频控制系统,FPGA实现3D像素预处理和显示屏控制,通过在LED屏前放置双面光栅,系统最终可以实现较好的3D显示效果。

Research of Two-sided Parallax Barrier Based Stereoscopic LED Display System

LED has been widely used in the outdoor display, and the application of 3D technology to LED display is surely a hot research direction. According to the problems that the LED units on the LED display panel are distorted and uneven which have led to the difficulty for traditional parallax barrier to align at the display panel, this paper presents a design of two-sided parallax barrier. The back barrier ensures that the horizontal and vertical direction of luminous center of every pixel in LED is consistent with each other. The front barrier is used to separate lights. Meanwhile, the realization of stereoscopic LED display system is designed. ARM acts as video control system and the FPGA realizes the pre-processing of the 3D data and control of the LED display. By placing the two-sided parallax barrier in front of the LED display, the system shows satisfying 3D display effect.