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5691795 |
Polymer stabilized liquid crystalline light modulating device and material
A new liquid crystalline light modulating cell and material are characterized by liquid crystalline light modulating material of liquid crystal and polymer, the liquid crystal being a chiral...
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5668614 |
Pixelized liquid crystal display materials including chiral material adopted to change its chirality upon photo-irradiation
An improvement in a light modulating chiral nematic liquid crystal adapted to form focal conic and twisted planar textures and a liquid crystal device employing such a material, the improvement...
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5543950 |
Liquid crystalline electrooptical device
An electrooptical light modulating device includes a liquid crystalline material disposed between first and second opposing cell wall structures and comprising liquid crystal of positive dielectric...
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5530566 |
Polymer dispersed ferroelectric smectic liquid crystal formed by inducing a force during phase separation
Disclosed is a class of light modulating materials comprising microdomains of ferroelectric smectic liquid crystal dispersed in a light-transmissive polymer medium. The microdomains are formed by...
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5529949 |
Process of making thin film 2H α-sic by laser ablation
Thin films of 2H α-silicon carbide are produced by pulsed laser ablation.
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5504600 |
Method of making a ferroelectric liquid crystal cell including a cooling step
An oriented ferroelectric liquid crystal in the chiral smectic C phase with the smectic planes normal to bounding plates of a cell is interspersed with polymer which stabilizes and freezes the...
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5453863 |
Multistable chiral nematic displays
A light modulating reflective cell comprising a polymer-free chiral nematic liquid crystalline light modulating material is disclosed. The cell includes nematic liquid crystal having positive...
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5437811 |
Liquid crystalline light modulating device and material
A new liquid crystalline light modulating cell and material are characterized by liquid crystalline light modulating material of liquid crystal and polymer, the liquid crystal being a chiral...
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5434685 |
Ferroelectric liquid crystal cell, a method of making it, and its use
An oriented ferroelectric liquid crystal in the chiral smectic C phase with the smectic planes normal to bounding plates of a cell is interspersed with polymer which stabilizes and freezes the...
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5384067 |
Grey scale liquid crystal material
A method of selectively adjusting the intensity of reflection to obtain stable grey scale reflectance of colored light from a light modulating chiral nematic liquid crystal material is disclosed....
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5368770 |
Method of preparing thin liquid crystal films
A liquid crystalline paste material is formed by polymerization of a solution containing a mesogenic solvent and monomeric material in bulk. The paste provides an improved method of preparing thin...
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5321533 |
Polymer dispersed ferroelectric smectic liquid crystal
Disclosed is a class of light modulating materials comprising microdomains of ferroelectric smectic liquid crystal dispersed in a light-transmissive polymer medium. The microdomains are formed by...
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5315419 |
Method of producing a homogeneously aligned chiral smectic C liquid crystal having homeotropic alignment layers
A method for promoting uniform "bookshelf" textures in light modulators using smectic C* liquid crystal is disclosed. The method comprises the steps of confining smectic C* phase liquid crystal...
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5264950 |
Light modulating device with polarizer and liquid crystal interspersed as spherical or randomly distorted droplets in isotropic polymer
The invention provides an improvement in light modulating devices employing birefringent liquid crystal interspersed in isotropic polymer. A polarizer disposed on a surface of the liquid crystal...
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5251048 |
Method and apparatus for electronic switching of a reflective color display
A light modulating apparatus comprising a liquid crystal light modulating material confined between substrates, elongated electrically-conductive paths supported on opposite sides of the light...
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5240636 |
Light modulating materials comprising a liquid crystal microdroplets dispersed in a birefringent polymeric matri method of making light modulating materials
A haze-free light modulating polymer dispersed liquid crystal (PDLC) material is disclosed which comprises a polymer which is birefringent and possesses anisotropic optical properties similar to...
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5093735 |
Infrared modulating material comprising a liquid crystal and a medium
An infrared modulating material comprising a first infrared transmissive phase dispersed in a second infrared transmissive phase. One of the phases comprises a liquid crystal phase and the other...
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5093471 |
Novel mesogenic amines and liquid-crystalline-side-group polymers incorporating same
Novel mesogenic amine curing agent for reactive monomers, such as epoxy resins and diisocyanates, comprises a mesogenic moiety, a primary amine, and a flexible alkyl spacer connected between the...
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5040877 |
Low loss liquid crystal modulator for coloring and shaping a light beam
The invention provides a low loss liquid crystal modulator for coloring and shaping a light beam wherein liquid crystal light modulators provide continuous variation in color and intensity output...
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5004323 |
Extended temperature range polymer dispersed liquid crystal light shutters
An extended temperature range polymer dispersed liquid crystal light shutter electrically switchable between a transmissive and an opaque state over a working temperature range of about -40° C. to ...
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4994204 |
Light modulating materials comprising a liquid crystal phase dispersed in a birefringent polymeric phase
A haze-free light modulating polymer dispersed liquid crystal (PDLC) material is disclosed which comprises a polymer matrix which is birefringent and possesses anisotropic optical properties...
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4890902 |
Liquid crystal light modulating materials with selectable viewing angles
A light modulating material comprising phase-separated microdroplets of liquid crystal in a light transmissive, synthetic resin matrix wherein the index of refraction np of the matrix is matched or...
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4688900 |
Light modulating material comprising a liquid crystal dispersion in a plastic matrix
A light modulating material consisting of droplets of liquid crystal in a clear or light transmitting, flexible plastic sheet or film, such as a cured epoxy. The light modulating material is...
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3965029 |
Liquid crystal materials
Disclosed are alkoxybenzalmethylphenylenediamines and methylbenzalbutylaniline as liquid crystal materials, and eutectic mixtures of these as long life liquid crystal materials.
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