Invention Grant
- Patent Title: Low birefringence ferroelectric liquid crystal mixtures
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Application No.: US15884102Application Date: 2018-01-30
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Publication No.: US11015120B2Publication Date: 2021-05-25
- Inventor: Valerii Vladimirovich Vashchenko , Evgenii Pavlovich Pozhidaev , Abhishek Kumar Srivastava , Vladimir Grigorievich Chigrinov , Hoi Sing Kwok
- Applicant: The Hong Kong University of Science and Technology
- Applicant Address: CN Hong Kong
- Assignee: The Hong Kong University of Science and Technology
- Current Assignee: The Hong Kong University of Science and Technology
- Current Assignee Address: CN Hong Kong
- Agency: Saliwanchik, Lloyd & Eisenschenk
- Main IPC: G02F1/1333
- IPC: G02F1/1333 ; C09K19/02 ; C09K19/30 ; C09K19/36 ; C09K19/58 ; C09K19/34 ; C09K19/04

Abstract:
A low birefringence ferroelectric liquid crystal (FLC) mixture composed of at least two components shows birefringence in the range 0.05 to 0.14, which is suitable for the modern display and photonic devices. The cell gap can be tuned from 1.5 μm to 4 μm to reduces the fabrication complexity and chromatic distortion by electro-optical modulation. The FLC mixtures can be employed in a wide temperature range. The characteristics of the said FLC mixture can be tuned by tuning the concentration of the constituents of the mixture. The helical pitch of the FLC mixtures can be varied from 100 nm to 10 μm. A smectic tilt angle can be varied between 17° to 45° and the spontaneous polarization can be tuned over a wide range to meet requirements of different electro-optical modes, and the FLC mixture is applicable for a wide variety of electro-optical effects.
Public/Granted literature
- US20180216004A1 LOW BIREFRINGENCE FERROELECTRIC LIQUID CRYSTAL MIXTURES Public/Granted day:2018-08-02
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