Invention Application
- Patent Title: SPATIALLY VARIABLE LIQUID CRYSTAL DIFFRACTION GRATINGS
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Application No.: US15815449Application Date: 2017-11-16
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Publication No.: US20180143485A1Publication Date: 2018-05-24
- Inventor: Chulwoo Oh
- Applicant: MAGIC LEAP, INC.
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02B27/01

Abstract:
The present disclosure relates to display systems and, more particularly, to augmented reality display systems. A diffraction grating includes a plurality of different diffracting zones having a periodically repeating lateral dimension corresponding to a grating period adapted for light diffraction. The diffraction grating additionally includes a plurality of different liquid crystal layers corresponding to the different diffracting zones. The different liquid crystal layers have liquid crystal molecules that are aligned differently, such that the different diffracting zones have different optical properties associated with light diffraction.
Public/Granted literature
- US10921630B2 Spatially variable liquid crystal diffraction gratings Public/Granted day:2021-02-16
Information query
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