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- Title
High‐efficiency switchable optical elements for advanced head‐up displays.
- Authors
Zhan, Tao; Lee, Yun‐Han; Xiong, Jianghao; Tan, Guanjun; Yin, Kun; Yang, Jilin; Liu, Sheng; Wu, Shin‐Tson
- Abstract
The Pancharatnam‐Berry optical elements (PBOEs) are utilized to enhance the performance of head‐up displays (HUDs). The Pancharatnam‐Berry lenses (PBLs) provide varifocal functionality and compensate chromatic aberrations, while the Pancharatnam‐Berry deflectors (PBDs) can function as optical combiners and waveguide couplers. Moreover, the Rigorous coupled wave analysis (RCWA) based on the scattering matrix is developed and applied in the structure optimization of PBOEs for HUD applications. Cost‐effective functional liquid crystal optical elements employing Pancharatnam‐Berry phase are helpful for enhancing the performance of head‐up displays. These distinct optical elements enable switchable virtual‐image‐distance and look‐down‐angle, and function as polarization sensitive optical combiners and high‐efficiency grating couplers for waveguide‐based HUDs.
- Subjects
OPTICAL elements; HEAD-up displays; ACHROMATISM; OPTICAL polarization; S-matrix theory; WAVE analysis; OPTICAL gratings
- Publication
Journal of the Society for Information Display, 2019, Vol 27, Issue 4, p223
- ISSN
1071-0922
- Publication type
Article
- DOI
10.1002/jsid.767