Enlarging the Eyebox of Maxwellian Displays with a Customized Liquid Crystal Dammann Grating
Abstract
The Maxwellian view offers a promising approach to overcome the vergence-accommodation conflict in near-eye displays, however, its pinhole-like imaging naturally limits the eyebox size. Here, a liquid crystal polymer-based Dammann grating with evenly distributed energy among different diffraction orders is developed to enlarge the eyebox of Maxwellian view displays via pupil replication. In the experiment, a 3-by-3 Dammann grating is designed and fabricated, which exhibits good efficiency and high brightness uniformity. We further construct a proof-of-concept Maxwellian view display breadboard by inserting the Dammann grating into the optical system. The prototype successfully demonstrates the enlarged eyebox and full-color operation. Our work provides a promising route of eyebox expansion in Maxwellian view displays while maintaining full-color operation, simple system configuration, compactness, and lightweight.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 17, 2021
- Source ID
- 10.3390/cryst11020195
Entities
People
- Kuan-hsu Fan-chiang
- Kun Yin
- Shin-Tson Wu
- Ziqian He
Organizations
- Air Force Office of Scientific Research