Borjigin Garimagai, Kakeya Hideki
Appl Opt. 2021 Apr 20;60(12):3353-3357. doi: 10.1364/AO.423012.
In this paper, an autostereoscopic display system based on a time-multiplexed directional backlight using a large aperture Fresnel lens is proposed. High-resolution stereoscopy for multiple viewers positioned at different distances from the screen is achieved in the proposed system by layering polymer dispersed liquid crystal screens behind the Fresnel lens. The screens with segmented electrodes are electrically controlled to change the position of light diffusion, while the time-multiplexed backlight is projected by a digital mirror device projector at a high refresh rate. The light is diffused at the conjugate focal points of the observers' eyes to deliver directional light to each eye. The right-eye image and the left-eye image are alternated on the LCD panel in front of the lens to synchronize with the backlight.
本文提出了一种基于使用大孔径菲涅耳透镜的时分复用定向背光的自动立体显示系统。在所提出的系统中，通过在菲涅耳透镜后面分层聚合物分散液晶屏幕，实现了对位于距屏幕不同距离处的多个观看者的高分辨率立体视觉。带有分段电极的屏幕通过电控制来改变光扩散的位置，而时分复用背光由数字微镜器件投影仪以高刷新率投射。光在观察者眼睛的共轭焦点处扩散，以向每只眼睛传递定向光。右眼图像和左眼图像在透镜前面的液晶面板上交替显示，以与背光同步。
