Invention Grant
- Patent Title: Liquid crystal mixtures for pitch variable optical elements
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Application No.: US16657585Application Date: 2019-10-18
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Publication No.: US11262638B2Publication Date: 2022-03-01
- Inventor: Yingfei Jiang , Afsoon Jamali , Changwon Jang , Adrian Travis , Andrew Maimone , Lu Lu
- Applicant: Facebook Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Facebook Technologies, LLC
- Current Assignee: Facebook Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Millburn IP PLLC
- Main IPC: C09K19/02
- IPC: C09K19/02 ; G02F1/29 ; C09K19/14 ; C09K19/58 ; C09K19/04
Abstract:
A liquid crystal (LC) mixture for a pitch variable optical element is provided. The LC mixture includes a host LC and one or more LC dimers dissolved as a guest in the host LC. The host LC and the one or more LC dimers have respective dielectric anisotropies of opposite signs in nematic phase. A net dielectric anisotropy of the LC mixture is substantially neutral.
Public/Granted literature
- US20210116776A1 LIQUID CRYSTAL MIXTURES FOR PITCH VARIABLE OPTICAL ELEMENTS Public/Granted day:2021-04-22
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