Acta Photonica Sinica, Volume. 46, Issue 12, 1222002(2017)
Design of Cylindrical Lens Grating Based on Free-form Surface for Naked-eye 3D Display
A novel lenticular screen of double-sided grating applied in low-crosstalk naked-eye 3D display is designed. Linear concave free-form gratings, with their number of grating lines equal to the number of horizontal sub-pixel on the screen display panel, are fabricated into the incident surface of the lenticular screen, and convex free-form slanted gratings are fabricated into the opposite surface. Design formulas for grating free-form surface and grating parameters are deduced based on the principles of naked-eye 3D display and geometrical optics. The grating parameters are calculated using MATLAB and grating model is established by modeling software Solidworks. The results show that the image crosstalk in 6-view naked-eye 3D displays, using double-sided lenticular screen, is 0.068% at the best viewing angle by selecting optimal parameters, which is lower than a conventional one by 2 orders of magnitude. The image crosstalk remains basically unchanged within the range of the viewing distance of 2 000 mm~3 000 mm.
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ZHANG Xiao-ting, CHEN Fang-ping, YE Lv-qing, WANG Xiao-yan, CAI Zhi-hui, ZHUANG Qi-ren. Design of Cylindrical Lens Grating Based on Free-form Surface for Naked-eye 3D Display[J]. Acta Photonica Sinica, 2017, 46(12): 1222002
Received: May. 31, 2017
Accepted: --
Published Online: Nov. 23, 2017
The Author Email: Xiao-ting ZHANG (251674413@qq.com)