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Proceedings Paper

Design of an ultra-thin near-eye display with geometrical waveguide and freeform optics
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Paper Abstract

Due to the worldwide portable devices and illumination technology trends, researches interest in laser diodes applications are booming in recent years. One of the popular and potential LDs applications is near-eye display used in VR/AR. An ideal near-eye display needs to provide high resolution, wide FOV imagery with compact magnifying optics, and long battery life for prolonged use. However, previous studies still cannot reach high light utilization efficiency in illumination and imaging optical systems which should be raised as possible to increase wear comfort. To meet these needs, a waveguide illumination system of near-eye display is presented in this paper. We focused on proposing a high efficiency RGB LDs light engine which could reduce power consumption and increase flexibility of mechanism design by using freeform TIR reflectors instead of beam splitters. By these structures, the total system efficiency of near-eye display is successfully increased, and the improved results in efficiency and fabrication tolerance of near-eye displays are shown in this paper.

Paper Details

Date Published: 16 February 2017
PDF: 7 pages
Proc. SPIE 10126, Advances in Display Technologies VII, 101260R (16 February 2017); doi: 10.1117/12.2253301
Show Author Affiliations
Meng-Che Tsai, National Taiwan Univ. of Science and Technology (Taiwan)
Tsung-Xian Lee, National Taiwan Univ. of Science and Technology (Taiwan)

Published in SPIE Proceedings Vol. 10126:
Advances in Display Technologies VII
Liang-Chy Chien; Tae-Hoon Yoon; Sin-Doo Lee, Editor(s)

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