Invention Grant
- Patent Title: Double layer liquid crystal device and process of manufacture
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Application No.: US17032367Application Date: 2020-09-25
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Publication No.: US11353751B2Publication Date: 2022-06-07
- Inventor: Joseph Sargent , Sarabjot Kaur , Simon Siemianowski , Izumi Saito
- Applicant: Merck Patent GmbH
- Applicant Address: DE Darmstadt
- Assignee: Merck Patent GmbH
- Current Assignee: Merck Patent GmbH
- Current Assignee Address: DE Darmstadt
- Agency: Millen White Zelano & Branigan, PC
- Agent Brion P. Heaney
- Priority: EP19199801 20190926
- Main IPC: C09K19/04
- IPC: C09K19/04 ; G02F1/1337 ; C09K19/56 ; C09K19/58 ; C09K19/54

Abstract:
A double layer liquid crystal device comprises a first and a second layer with orthogonal or crossed alignment of the liquid crystal phase of the two layers, in which the first and second layer have first and second alignment aids comprised of a polymerized or polymerizable molecular compound. The layers are aligned by UV photoalignment and vertical self-alignment by the aid of suitable additives.
Public/Granted literature
- US20210096431A1 Double Layer Liquid Crystal Device and Process of Manufacture Public/Granted day:2021-04-01
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