Directional light-guide devices with continuously variable spatial frequency sub-micron grating structures for autostereoscopic display applications

Wenqiang Wan; Linsen Chen; Yimin Lou; Su Shen; Yan Ye; Xiaoxuan Dong; Wenbin Huang; Minghui Luo

doi:10.1117/12.2071328

11 November 2014 Directional light-guide devices with continuously variable spatial frequency sub-micron grating structures for autostereoscopic display applications

Wenqiang Wan, Linsen Chen, Yimin Lou, Su Shen, Yan Ye, Xiaoxuan Dong, Wenbin Huang, Minghui Luo

Author Affiliations +

Proceedings Volume 9271, Holography, Diffractive Optics, and Applications VI; 927126 (2014) https://doi.org/10.1117/12.2071328
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

Autostereoscopic displays are a promising three dimensional display technology for its convenience and compatibility with current display systems which has attracted considerable attention. We describe in detail an autostereoscopic display system with full-parallax using a directional light-guide device with continuously variable spatial frequency sub-micron grating structures. The optimization process of parameters of the multi-direction light-guide is given. A method of implementing sub-micron grating pixels (SMGPs) based on an ultraviolet continuously variable spatial frequency photolithography process has been proposed. The process aims to provide low cost fabrication of variable spatial frequency grating pixels with high efficiency. We fabricate 2 inch backlight plate with nine viewing directions, and the pitch of each diffractive pixel varies between 441 nm and 578 nm. The properties of SMGPs are investigated by the measurement of diffraction efficiency dependence on viewing angle under a collimated 650 nm LED light source at an incidence angle of 60°. The variation of diffraction efficiency with regards to viewing angle is weak. The measured diffraction efficiency is around 6%, which is in good agreement with the simulated value.

Citation Download Citation

Wenqiang Wan, Linsen Chen, Yimin Lou, Su Shen, Yan Ye, Xiaoxuan Dong, Wenbin Huang, and Minghui Luo "Directional light-guide devices with continuously variable spatial frequency sub-micron grating structures for autostereoscopic display applications", Proc. SPIE 9271, Holography, Diffractive Optics, and Applications VI, 927126 (11 November 2014); https://doi.org/10.1117/12.2071328

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available