International Display Workshops General Incorporated Association

[FMCp4-3] See-through AR Display Based on Waveguide Combiner with Surface Relief Grating

*Wen-Teng Liang1、Wen Kai Lin2,1、Shao Kui Zhou2,1、Wei Chia Su1 (1.National Changhua University of Education (Taiwan)、2.National Yang Ming Chiao Tung University (Taiwan))

Holography, Surface relief grating, Diffractive waveguide combiner, Photoresist, Exit pupil expansion

https://doi.org/10.36463/idw.2022.0371

In this research, the diffractive waveguide elements can treat as reflection or transmission elements depending on different observation directions. The device can achieve one dimension exit pupil expansion, and approximate a horizonal FOV of 34 deg in reflection element and transmission element respectively.