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- Title
High-ambient-contrast augmented reality with a tunable transmittance liquid crystal film and a functional reflective polarizer.
- Authors
Zhu, Ruidong; Chen, Haiwei; Kosa, Tamas; Coutino, Pedro; Tan, Guanjun; Wu, Shin‐Tson
- Abstract
We have proposed a compact, yet high ambient contrast ratio augmented reality (AR) system by incorporating a tunable transmittance liquid crystal (LC) cell and a thin functional reflective polarizer. The broadband polarization-independent guest-host LC cell can change the transmittance from ~73% to ~26% with merely 8 V. Its response time (~50 ms) is at least 10× faster than that of photochromic materials used in commercial transition glasses. Combining the LC cell with a light sensor, the tunable transmittance LC cell can efficiently improve the ambient contrast ratio of the AR system under different lighting conditions. Meanwhile, the functional reflective polarizer works similarly to a polarizing beam splitter, except that it is much more compact and lighter weight. With some modification, we also designed a functional reflective polarizer to help people with color vision deficiency.
- Subjects
POLARIZERS (Light); LIQUID crystal films; AUGMENTED reality; TUNABLE lasers; TRANSMITTANCE (Physics)
- Publication
Journal of the Society for Information Display, 2016, Vol 24, Issue 4, p229
- ISSN
1071-0922
- Publication type
Article
- DOI
10.1002/jsid.427