Ferroelectric liquid crystal mixture with organic ion pair compound
AssigneeCitizen Finetech Miyota Co., Ltd.
InventorsCory Pecinovsky, William Thurmes, Brion C. Koprowski
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Abstract
Ferroelectric liquid crystal compositions including organic ion pair compounds wherein image sticking is reduced or eliminated. Use of the ferroelectric liquid crystal compositions in a ferroelectric liquid crystal display device allows for rapid image refresh rates without required a DC-balancing algorithm. The organic ion pair compounds provide electrical resistivity values for the compositions that result in reduced image sticking when the compositions are used in FLC display devices.
Claims37
A smectic liquid crystal composition for use in a smectic liquid crystal display device, comprising a ferroelectric liquid crystal (FLC) composition for use in a ferroelectric liquid crystal display device, comprising, an organic ion pair compound comprising an anion and a cation.
A smectic liquid crystal composition for use in a smectic liquid crystal display device, comprising an organic ion pair compound comprising an anion and a cation, wherein the organic ion pair compound comprises a fluoroalkylsulfonate anion.
A smectic liquid crystal composition for use in a smectic liquid crystal display device, comprising an organic ion pair compound comprising an anion and a cation, wherein resistivity of the composition including the organic ion pair compound is in the range of about 140 MΩ·cm to about 20 GΩ·cm.
A smectic liquid crystal composition for use in a smectic liquid crystal display device, comprising an organic ion pair compound comprising an anion and a cation, wherein resistivity of the composition including the organic ion pair compound is in the range of about 140 MΩ·m to about 3 GΩ·cm.
A smectic liquid crystal composition for use in a smectic liquid crystal display device, comprising an organic ion pair compound comprising an anion and a cation, wherein the organic ion pair compound, comprising an anion and a cation, is of any of the following compounds:
- or any mixture thereof.
A method of reducing image sticking in a ferroelectric liquid crystal composition used in a ferroelectric liquid crystal display device, comprising adding an organic ion pair compound to the composition.
Dependencies are inferred from the claim text.