柱透镜光栅式裸眼三维显示系统视区分析

Analysis on the Viewing Area of Cylindrical Lens Raster Glasses-Free 3D Display System

分析基于柱透镜光栅的裸眼立体显示系统,并建立明确的观察区域几何模型。首先建立了柱透镜光栅式裸眼3D显示系统观察区域的几何模型,研究了柱透镜光栅板的分光作用,分析了柱透镜参数和观察距离、观察视角之间的关系;然后通过建立的几何模型,对形成的观察区域进行分析,得出了观察范围的表达式以及柱透镜参数、显示屏参数和观察范围之间的关系;最后引用质量因子概念结合主观评测方法对两台裸眼3D显示设备形成的观察区域内的图像质量进行评价。实验结果表明:根据建立的几何模型可以计算出裸眼3D显示器的最佳观察区域。本模型为自由立体显示器的最优设计和具体实现提供了参考。

In the glasses-free 3D stereoscopic display technology based on the cylindrical lens grating,there is no clear geometric model of the viewing area.Firstly,a geometric model of the observation area of the glasses-free 3D display system was established,and the spectroscopic effect of the lenticular grating plate was studied.The relationships between the lenticular parameters,the observation distance and the observation angle were analyzed.Then the geometrical model was used to analyze the formed observation area,and the expression of the viewing range and the relationships between the lens parameters,the display screen parameters and the viewing range were obtained.Finally,the quality factor concept was combined with the subjective evaluation method to evaluate the image quality in the viewing area of two glasses-free 3D display devices.The image quality in the observation area was evaluated.The experimental results showed that the best viewing area of the glasses-free 3D display could be calculated according to the established geometric model.This model provided a reference for the optimal design and specific implementation of free-stereoscopic displays.