Chien Ko-Wei, Shieh Han-Ping D
Department of Photonics, Institute of Electro-Opitcal Engineering, National Chiao Tung University, Hsinchu, Taiwan.
Appl Opt. 2006 May 1;45(13):3106-10. doi: 10.1364/ao.45.003106.
An autostereoscopic display using a directional backlight with a fast-switching liquid-crystal (LC) display was designed and fabricated to obtain a better perception of 3D images by enhanced resolution and brightness. A grooved light guide in combination with an asymmetric focusing foil was utilized to redirect the emitting cones of light to the left and right eyes, respectively. By designing the groove structures of the focusing foil with rotation from -1.5 degrees to 1.5 degrees in the gradient and having the pitch ratio of the grooved light guide to the focusing foil of less than 3, the boundary angle then shifts from normal viewing and the moiré phenomenon can be suppressed. Cross talk of less than 6% and a LC response time of faster than 7.1 ms further improve the stereoscopic image perception. Additionally, 2D-3D compatibility is provided.
设计并制作了一种使用定向背光源和快速切换液晶（LC）显示器的自动立体显示器，以通过提高分辨率和亮度来获得对3D图像更好的感知。结合不对称聚焦箔的带槽光导被用于分别将发射的光锥重定向到左眼和右眼。通过将聚焦箔的槽结构设计为在梯度上从-1.5度旋转到1.5度，并且使带槽光导与聚焦箔的间距比小于3，边界角会从正常视角偏移，从而可以抑制莫尔现象。小于6%的串扰和快于7.1毫秒的液晶响应时间进一步改善了立体图像感知。此外，还提供了2D-3D兼容性。
