Invention Grant
- Patent Title: Method of wafer scale fabrication, assembly and electrical connection of a liquid crystal electro-optic device
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Application No.: US15320457Application Date: 2015-06-25
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Publication No.: US11042064B2Publication Date: 2021-06-22
- Inventor: Tigran Galstian , Aram Bagramyan , Amir Tork
- Applicant: LENSVECTOR INC.
- Applicant Address: US CA San Jose
- Assignee: LENSVECTOR INC.
- Current Assignee: LENSVECTOR INC.
- Current Assignee Address: US CA San Jose
- Agency: J-TEK Law PLLC
- Agent Jeffrey D. Tekanic; Scott T. Wakeman
- International Application: PCT/CA2015/050589 WO 20150625
- International Announcement: WO2015/196291 WO 20151230
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02F1/1339 ; G02F1/1341 ; G02F1/1347 ; G02F1/1333 ; G02F1/1337 ; G02F1/1343

Abstract:
A method of wafer level manufacturing, separating and electrical connection of liquid crystal optical devices is disclosed. An electro-optic device having at least one liquid crystal cell for providing spatially variable control of light is also described. The electro-optic device includes: a pair of opposed substrates, each substrate having a lateral extent; a pair of electrodes for applying an electric field therebetween, each electrode having a pattern and being deposited on a corresponding substrate, each electrode having an electrical contact area extending to at least one side of the corresponding substrate; a pair of alignment layers sandwiching a liquid crystal layer therebetween, the alignment layers defining a predominant orientation direction for liquid crystal molecules of the liquid crystal layer; and a liquid crystal reservoir wall defining a lateral extent of the liquid crystal layer, the liquid crystal reservoir wall being spaced from at least one side of each substrate such that each electrode electrical contact area is exposed to air in an air gap between the substrates.
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