Multiview holographic 3D dynamic display by
combining a nano-grating patterned phase
plate and LCD
WENQIANG WAN,
1,2
WEN QIAO,
1,2,4
WENBIN HUANG,
1,2
MING ZHU,
3
YAN
YE,
1,2
XIANGYU CHEN,
1,2
AND LINSEN CHEN
1,2,3,5
1
College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano
Science and Technology, Soochow University, Suzhou, 215006, China
2
Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern
Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, China
3
SVG Optronics, Co., Ltd, Suzhou 215026, China
4
wqiao@suda.edu.cn
5
lschen@suda.edu.cn
Abstract: Limited by the refreshable data volume of commercial spatial light modulator
(SLM), electronic holography can hardly provide satisfactory 3D live video. Here we propose a
holography based multiview 3D display by separating the phase information of a lightfield
from the amplitude information. In this paper, the phase information was recorded by a 5.5-inch
4-view phase plate with a full coverage of pixelated nano-grating arrays. Because only
amplitude information need to be updated, the refreshing data volume in a 3D video display was
significantly reduced. A 5.5 inch TFT-LCD with a pixel size of 95 μm was used to modulate the
amplitude information of a lightfield at a rate of 20 frames per second. To avoid crosstalk
between viewing points, the spatial frequency and orientation of each nano-grating in the phase
plate was fine tuned. As a result, the transmission light converged to the viewing points. The
angular divergence was measured to be 1.02 degrees (FWHM) by average, slightly larger than
the diffraction limit of 0.94 degrees. By refreshing the LCD, a series of animated sequential 3D
images were dynamically presented at 4 viewing points. The resolution of each view was 640 ×
360. Images for each viewing point were well separated and no ghost images were observed.
The resolution of the image and the refreshing rate in the 3D dynamic display can be easily
improved by employing another SLM. The recoded 3D videos showed the great potential of the
proposed holographic 3D display to be used in mobile electronics.
© 2017 Optical Society of America
OCIS codes: (050.1950) Diffraction gratings; (090.2870) Holographic display; (100.3010) Image reconstruction
techniques; (100.6890) Three-dimensional image processing; (120.2040) Displays.
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Vol. 25, No. 2 | 23 Jan 2017 | OPTICS EXPRESS 1114
http://dx.doi.org/10.1364/OE.25.001114
Received 16 Nov 2016; revised 18 Dec 2016; accepted 8 Jan 2017; published 13 Jan 2017