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Liquid crystal aligning agent, liquid crystal display device, and polyorganosiloxane

ActiveCN101724408AGood orientationImprove display qualityLiquid crystal compositionsNon-linear opticsLiquid-crystal displayElectrical performance

The invention relates to a liquid crystal aligning agent, a liquid crystal display device, and a polyorganosiloxane. A liquid crystal aligning agent capable of forming a liquid crystal aligning film with great liquid crystal aligning performance, exhibiting great electrical performance, and especially great voltage holding rate and afterimage characteristic. The liquid crystal aligning agent contains a special polysiloxane containing a group having steroid skeleton and a group represented by the following formula (1A): -(AII)a-X-R. In the formula (1A), R is an alkyl group optionally substituted by fluorine having 4-20 carbon atoms, AII is a cyclohexylene group or a phenylene group, X is a single bond, an oxygen atom, a sulphur atom, -COO- or -OCO-, a is an integer from 0 to 3. When a plurality of AII exist, they can be identical to each other, or different from each other.

Liquid crystal aligning agent, liquid crystal display device, and polyorganosiloxane

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Owner:JSR CORPORATIOON

High voltage-resistant permanent magnet-shield high speed switching electromagnet

InactiveCN101776172AAvoid self-locking forceSpeed up the release processOperating means/releasing devices for valvesEngineeringHigh voltage

The invention discloses a high voltage-resistant permanent magnet-shield high speed switching electromagnet. The high voltage-resistant permanent magnet-shield high speed switching electromagnet comprises a push rod (6) and a shell (1), an armature (8), a guide sleeve (4) and the like which are all magnetic conductors, wherein the outer surface of the guide sleeve (4) is provided with an annular trapezoidal groove (41); the bottom (412) in the centre of the annular trapezoidal groove (41) is provided with an annular permanent magnet (9); an inner cavity (40) of the guide sleeve (4) is provided with the armature (8) which is connected with the guide sleeve (4) in a sliding way; the push rod (6) is fixedly connected with the armature (8) after penetrating through the bottom (10) of the shell (1) and a trapezoidal guide sleeve channel (42); a returning spring (5) is arranged in the trapezoidal guide sleeve channel (42); and one end of the returning spring (5) is pressed against the shell (1) while the other end is pressed against the armature (8). The high voltage-resistant permanent magnet-shield high speed switching electromagnet has the characteristics of capacity of increasing output electromagnetic force and increasing response speed.

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Owner:ZHEJIANG UNIV

Liquid crystal display element and method for manufacturing same

ActiveCN103443695AExcellent high-speed responseEffectively used asLiquid crystal compositionsNon-linear opticsDielectric anisotropyRotational viscosity

Provided are a liquid crystal display element, in which dropping stains do not occur easily during manufacturing without causing degradation of various characteristics for the liquid crystal display element such as dielectric anisotropy, viscosity, upper limit temperature for nematic phase, and rotational viscosity (gamma1) or in burn-in characteristics for the liquid crystal display element, and a method for manufacturing the same. This liquid crystal display element (10) is characterized by having a liquid crystal composition layer (13) sandwiched between a first substrate (11) and a second substrate (12) and vertical orientation films (16, 17) that are formed from a cured product of a polymerizable liquid crystal compound and also by a liquid crystal composition constituting the liquid crystal composition layer (13) containing a compound represented by the general formulas (I) and (II).

Liquid crystal display element and method for manufacturing same

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Owner:DIC CORP

Liquid crystal display element

ActiveCN104254803AExcellent high-speed responseReduce generationLiquid crystal compositionsNon-linear opticsCrystallographyDielectric anisotropy

Provided is an FFS-type liquid crystal display element which uses a liquid crystal composition containing at least one type of compound selected from the group of compounds represented by general formula (I), at least one type of compound selected from the group of compounds represented by general formula (II), and at least one type of compound selected from the group of compounds represented by general formula (III), as a liquid crystal display element which uses a liquid crystal composition having negative dielectric anisotropy, whereby it is possible to realize excellent display characteristics through use thereof in an FFS-mode liquid crystal display element without adversely affecting liquid crystal display element characteristics such as dielectric anisotropy, viscosity, nematic phase upper-limit temperature, nematic phase stability at low temperature, and [gamma] 1, and image retention characteristics in the liquid crystal display element.