Multi-phase liquid composition and optical electrowetting device that incorporates the same
AssigneeVarioptic S.A.
InventorsGaetan Liogier D'Ardhuy, Franck Amiot, Geraldine Malet
Life of this patent
Estimating the term…
Abstract
The present invention relates to a multi-phase liquid composition comprising a conductive fluid and a non-conductive fluid, the non-conductive fluid being immiscible in the conductive fluid, the composition having a mean arithmetic cinematic viscosity of between about 1.5 cSt and about 40 cSt, within a temperature range of about −20° C. to about +70° C. The invention also pertains to an optical electrowetting device comprising said multi-phase liquid composition, as well as an optical lens driven by electrowetting, and apparatus comprising the same.
Claims32
A multi-phase liquid composition comprising a conductive fluid and a non-conductive fluid, the non-conductive fluid being immiscible in the conductive fluid, the composition having a mean arithmetic cinematic viscosity of between 1.5 cSt and 40 cSt, within a temperature range of −20° C. to +70° C.
A use of a mono germane compound substituted by one or more aryl groups in the non-conductive fluid of an optical electrowetting device, especially an optical lens driven by electrowetting.
A use of a compound of formula (I), a compound of formula (II) or a mixture thereof, in the non-conductive fluid of an optical electrowetting device, especially an optical lens driven by electrowetting, as hydrolysis-resistant compound:
- wherein:
- X, X1 and X2 are halogen atoms;
- A is linear or branched (C4-C20)alkylene, optionally substituted by halogen atom(s), and optionally comprising one or more double bond, and/or one or more triple bond;
- Ak is C1-C10 alkyl, preferably C1-C6 alkyl;
- p and q are each chosen from 1, 2, 3, 4 or 5, provided that p+q is 2, 3, 4, 5 or 6.
Dependencies are inferred from the claim text.