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1. (WO2015043098) MULTI-VIEWING ANGLE NAKED-EYE THREE-DIMENSIONAL DISPLAY SYSTEM AND DISPLAY METHOD THEREFOR

Pub. No.:    WO/2015/043098    International Application No.:    PCT/CN2013/090603
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Fri Dec 27 00:59:59 CET 2013
IPC: G02B 27/22
G03B 35/20
Applicants: GRADUATE SCHOOL AT SHENZHEN, TSINGHUA UNIVERSITY
清华大学深圳研究生院
Inventors: ZHANG, Lei
张磊
TANG, Shao
唐邵
LI, Kai
李凯
ZHANG, Yongbing
张永兵
Title: MULTI-VIEWING ANGLE NAKED-EYE THREE-DIMENSIONAL DISPLAY SYSTEM AND DISPLAY METHOD THEREFOR
Abstract:
A multi-viewing angle naked-eye three-dimensional display system and a display method therefor. The three-dimensional display system comprises: a laser projector (1) which is used to project a light ray; a scanning system which receives the light ray projected by the laser projector and scans same to generate an image; a plane mirror array which reflects the image emitted by the scanning system so as to form a multi-viewing angle image; and a cylindrical lens grating system (4) which comprises a first cylindrical lens grating (41) and a scattering film (43), wherein the scattering film is located at one side, with the back toward the plane mirror array, of the first cylindrical lens grating. Images emitted by various plane mirrors (31) in the plane mirror array coincide pairwise on the first cylindrical lens grating. The multi-viewing angle naked-eye three-dimensional display system and the display method therefor adopt the plane mirror array to replace a projector array in the traditional technology, thereby greatly saving the costs and reducing the energy consumption; and at the same time, since only one projector is used, the size of the projector will not be limited, so that high-brightness projection can be achieved, and therefore, the three-dimensional display system and method can be used in various complex environments, such as an outdoor environments.