Invention Grant
- Patent Title: Liquid crystal cell, method of driving liquid crystal cell, and liquid-crystal-based spectacle lens
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Application No.: US16473460Application Date: 2018-11-19
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Publication No.: US11366340B2Publication Date: 2022-06-21
- Inventor: Zhongxiao Li , Xiaochuan Chen , Wenqing Zhao , Weili Zhao , Haiyan Wang , Chen Yu Chen
- Applicant: BOE TECHNOLOGY GROUP CO., LTD.
- Applicant Address: CN Beijing
- Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee Address: CN Beijing
- Agency: Dilworth & Barrese, LLP.
- Agent Michael J. Musella, Esq.
- Priority: CN201810225362.9 20180319
- International Application: PCT/CN2018/116264 WO 20181119
- International Announcement: WO2019/179147 WO 20190926
- Main IPC: G02C7/08
- IPC: G02C7/08 ; G02F1/29

Abstract:
A liquid crystal cell, a method of driving a liquid crystal cell, and a liquid-crystal-based spectacle lens are provided. The liquid crystal cell includes: a ring-like electrode layer, a liquid crystal layer, and an opposite electrode layer. The second ring-like electrode region is concentric with the first ring-like electrode region and surrounds the first ring-like electrode region; the first ring-like electrode region is configured to drive corresponding liquid crystal molecules in the liquid crystal layer, so as to form a first Fresnel zone plate region in the liquid crystal cell; the second ring-like electrode region is configured to drive corresponding liquid crystal molecules in the liquid crystal layer, so as to form a second Fresnel zone plate region of the liquid crystal cell; an order of the second Fresnel zone plate region is smaller than an order of the first Fresnel zone plate region.
Public/Granted literature
- US20210405394A1 LIQUID CRYSTAL CELL, METHOD OF DRIVING LIQUID CRYSTAL CELL, AND LIQUID-CRYSTAL-BASED SPECTACLE LENS Public/Granted day:2021-12-30
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