Fabricating polymeric microretardation arrays for autostereoscopic display system by CO2-laser heat processing technology

Chao-Hsu Tsai; KuenJin Lee; KuoChung Huang; Chih-Kung Lee

doi:10.1117/12.384458

3 May 2000 Fabricating polymeric microretardation arrays for autostereoscopic display system by CO₂-laser heat processing technology

Chao-Hsu Tsai, KuenJin Lee, KuoChung Huang, Chih-Kung Lee

Author Affiliations +

Proceedings Volume 3957, Stereoscopic Displays and Virtual Reality Systems VII; (2000) https://doi.org/10.1117/12.384458
Event: Electronic Imaging, 2000, San Jose, CA, United States

Abstract

A micro-retardation array is a plate consisting of two or more optical retardation states that are micro-patterned within different regions of the plate. A LCD panel with the micro-retardation array can be used to display stereoscopic images watched with or without special glasses by encoding right-eye image and left-eye image with periodically horizontal stripes of different polarization states. For example, the odd rows of stripes are assigned to have zero retardation and the even rows of stripes with a half- wavelength retardation or vice versa. The width of each stripe is of the order of hundreds of microns. This paper describes a fabrication process of micro-retardation array with high contrast ratio, well-defined stripe boundary and green process. The fact that the retardation property of polymer film will be changed by heat process is used in this fabrication process. It is shown that by accurately controlling the power and spot-size of a CO₂ laser, the retardation property of a polymeric film, such as PC and ARTON can be tailored within a localized area without altering the retardation of the untreated areas. In addition, the contrast ratios of micro-retardation array are measured and analyzed, the performance of an autostereoscopic display system using the micro-retardation array is also described.

Citation Download Citation

Chao-Hsu Tsai, KuenJin Lee, KuoChung Huang, and Chih-Kung Lee "Fabricating polymeric microretardation arrays for autostereoscopic display system by CO₂-laser heat processing technology", Proc. SPIE 3957, Stereoscopic Displays and Virtual Reality Systems VII, (3 May 2000); https://doi.org/10.1117/12.384458

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