1289results about "Liquid crystal compositions" patented technology

The invention provides a liquid crystal composite for an active-matrix-addressed electro-optical display device and application of the liquid crystal composite. The liquid crystal compound comprises a compound with a general formula (I) which occupies 10 percent to 30 percent of the total weight of the liquid crystal composite, a compound with a general formula (II) which occupies 5 percent to 30 percent of the total weight of the liquid crystal composite, a compound with a general formula (III) which occupies 10 percent to 40 percent of the total weight of the liquid crystal composite, and a compound with a general formula (IV) which occupies 10 percent to 60 percent of the total weight of the liquid crystal composite. The liquid crystal composite provided by the invention has a relatively high response speed and good low temperature storage stability. The invention further provides the active-matrix-addressed electro-optical display device comprising the liquid crystal composite.

The invention belongs to the technical field of optical materials, and discloses a holographic polymer dispersed liquid crystal composition, a holographic grating and a preparation method. The composition comprises the following components in parts by mass: 0.5-1.5 parts of a photoinitiator, 2-5 parts of a co-initiator, 15-20 parts of a first monomer, 15-20 parts of a second monomer, 10-15 parts of a third monomer, 10-15 parts of a solvent and 10-20 parts of mixed liquid crystal. Wherein the first monomer is a monofunctional acrylic monomer, the second monomer is a bifunctional acrylic monomer, the third monomer is a polyfunctional acrylic monomer, the mixed liquid crystal comprises 10-25 wt% of a monomer liquid crystal and 75-90 wt% of a nematic liquid crystal, and the monomer liquid crystal contains fluorine as a benzene ring substituent and contains cyano or isothiocyano as an end group. Through cooperation of the monomer liquid crystal and the nematic liquid crystal in the mixed liquid crystal and cooperation of fluorine atoms and cyano / isothiocyano groups in the monomer liquid crystal, the holographic grating prepared from the composition has the characteristics of low haze and high diffraction efficiency, and the grating can be thinner, so that the requirements of light weight and clearness of AR glasses can be met.

Disclosed is a liquid crystal composition. The liquid crystal composition includes liquid crystal molecules including at least one of a liquid crystal compound having an alkenyl group and a liquid crystal compound having an alkoxy group, and a first stabilizer including a compound having a structure represented by Formula 1:where n is 0 or 1; m is 0 or 1; k is 0 or 1; Z1, Z2, and Z3 are each independently a single bond, —C═C—, —OCO—, —COO—, —CF2O—, or a C1 to C5 alkylene group; X1, X2, X3, and X4 are each independently hydrogen or halogen; Y is hydrogen, an alkylene group, an alkoxy group, a hydroxyl group, —NHCOCH3, or ═O; and A and B are cyclic compounds.

The invention provides a liquid crystal aligning agent, a liquid crystal alignment film, a liquid crystal display element and a manufacturing method of the liquid crystal aligning agent. The liquid crystal aligning agent can obtain a liquid crystal alignment film which has excellent adhesion and can inhibit AC ghosting at a high level. A liquid crystal aligning agent containing a polymer component P containing one or more polymers, a compound C1, and a compound C2, the polymer component P containing at least one polymer p selected from the group consisting of polyimide precursors and polyimides that are imides of the polyimide precursors. Compound C1 is a compound having two or more structures represented by formula (c-1). The compound C2 is a compound represented by formula (c-2).

The invention discloses a preparation method of a 3MDT dimming film and application of the 3MDT dimming film to automobile glass, and relates to the technical field of dimming films. The preparation method of the 3MDT dimming thin film comprises the following steps: uniformly mixing isobornyl acrylate, a cross-linking agent and a photoinitiator, adding a functional filler, stirring and uniformly mixing, adding micromolecular nematic liquid crystal, and stirring to obtain a liquid crystal composite system; injecting the liquid crystal composite system into a liquid crystal box, and performing ultraviolet irradiation to obtain an interlayer film; two PET plastic films serve as substrates, the inner surfaces of the substrates are coated with ITO conductive coatings, the interlayer film is arranged between the two substrates, and the 3MDT dimming film is obtained. The prepared 3MDT dimming film has good heat insulation performance and mechanical performance, the interlayer film of the 3MDT dimming film has excellent hydrophobic performance, and the 3MDT dimming film is suitable for being applied to the aspect of automobile glass.

The invention relates to the technical field of building energy-saving intelligent windows, and discloses a sunlight and heat radiation multi-adjustment intelligent window and a preparation method and application thereof. The intelligent window comprises an outer surface layer, a middle layer and an inner surface layer which are stacked in sequence. The outer surface layer comprises an infrared transparent layer, and an infrared reflecting layer and a doped vanadium dioxide layer which are respectively arranged on two opposite surfaces of the infrared transparent layer; the inner surface layer comprises a transparent substrate and a conductive layer attached to the surface of one side of the transparent substrate; the middle layer is a liquid crystal / polymer dimming layer, one side of the liquid crystal / polymer dimming layer is bonded with the infrared reflecting layer, and the other side of the liquid crystal / polymer dimming layer is bonded with the conductive layer. According to the intelligent window, multiple cooperative regulation and control of sunlight and heat radiation can be achieved, the regulation and control wave band is wide, the response speed is high, and the energy-saving effect is good. The regulation and control wave band covers visible light, near infrared and middle and far infrared ranges, reversible change can be realized along with the change of environment temperature, and all-year-round and all-weather energy saving is realized.

Embodiments of improved methods and processes are provided for patterning a semiconductor substrate using direct self-assembly (DSA) of ionic liquid crystals (ILCs). In the disclosed embodiments, an ILC solution comprising ILCs is deposited on a variety of substrate surfaces. An upper surface of the ILC solution is exposed to a gas phase, non-polar solvent (such as, e.g., hexane gas). The gas phase, non-polar solvent provides an ambient environment that promotes self-assembly of the ILCs into vertically layered ILC structures.

Provided are: a liquid crystal aligning agent which contains two or more polyamic acids and in which deterioration in liquid crystal aligning properties when stored at room temperature is suppressed; a liquid crystal alignment film obtained from the liquid crystal aligning agent; and a liquid crystal display element. The liquid crystal aligning agent is characterized by containing the following polymer (A) and polymer (B). Polymer (A): a polyamic acid (A) having a structural unit derived from a tetracarboxylic acid derivative and a structural unit derived from a diamine, the polyamic acid containing, as the structural unit derived from the tetracarboxylic acid derivative, a structural unit (a-1Ta) represented by formula (1Ta), and containing, as the structural unit derived from the diamine, a structural unit (a-1Da) represented by formula (1Da), at least a part of the terminal of the polyamic acid (A) contains a non-amino group, the non-amino group is a functional group represented by structural formula (E), and the presence rate of the terminal amino group in the polyamic acid (A) is 60% or less based on the total terminal of the polyamic acid (A). Polymer (B): a polyamic acid (B) having a structural unit derived from a tetracarboxylic acid derivative and a structural unit derived from a diamine, the polyamic acid including a structural unit (b-1Tb) represented by formula (1Tb) as the structural unit derived from the tetracarboxylic acid derivative, and including a structural unit (b-1Db) represented by formula (1Db) as the structural unit derived from the diamine. (Definition of each symbol is as defined in the specification) (Definition of each symbol is as defined in the specification) (Definition of each symbol is as defined in the specification) (Definition of each symbol is as defined in the specification)

The invention discloses a near-infrared dichroic dye, a liquid crystal composition and application of the near-infrared dichroic dye and the liquid crystal composition. The structural general formula of the disclosed dichroic dye is as shown in formula I in the specification. According to the invention, a hydrogenated quinoline ring, a hydrogenated benzopyran ring and a hydrogenated naphthalene ring are introduced into a molecular skeleton, so that the novel near-infrared dichroic dye with high light stability, high solubility, high order parameter and high light modulation capability is obtained. Compared with the near-infrared dichroic dye disclosed in the prior art, the absorption band is further subjected to red shift, and the light modulation capability is remarkably improved; ordering parameters are greatly improved, and the application bottleneck is solved.

The invention refers in a first aspect to self-supporting film comprising green luminescent crystals (1), red luminescent crystals (2), and a polymer (3). The green luminescent crystals (1) are perovskite crystals. The red luminescent crystals (2) are zincblende or wurzite, preferably zincblende, crystals. A second aspect of the invention refers to a solid polymer composition (100). A third aspect of the invention refers to a light emitting device comprising either the solid polymer composition (100) or the self-supporting film.

The invention belongs to the technical field of high polymer materials, and particularly relates to a fluorescent liquid crystal polyurethane material as well as a preparation method and application thereof. According to the invention, hydroxyl and a flexible spacer-CH2-are introduced to cyanostilbene to synthesize a dihydroxyl-containing cyanostilbene compound as a dihydroxyl fluorescent liquid crystal monomer. A linear polyurethane material is prepared by taking a dihydroxyl fluorescent liquid crystal monomer and diisocyanate as raw materials, and a structural unit of cyanostilbene is directly introduced into a main chain structure of polyurethane in a chemical bonding manner, so that fluorescent / liquid crystal units are uniformly and stably distributed in a polymer main chain; the fluorescent liquid crystal polyurethane material integrating high mechanical property, good processability and stable fluorescence characteristic is obtained. The fluorescent liquid crystal polyurethane material can provide a multifunctional solution in wider fields of data storage, coding anti-counterfeiting, intelligent sensing, flexible electronics, shape memory materials, photoelectric display devices, optical fiber communication, biomedicine and the like.

A liquid crystal composition contains a side chain type polymer liquid crystalline compound which can form a light absorption anisotropic film having a high alignment degree and has excellent solubility in a general-purpose solvent, a light absorption anisotropic film obtained using the composition, a laminate, and an image display device. The composition includes: a side chain type polymer liquid crystalline compound; and a dichroic substance, in which the compound is a copolymer having a repeating unit (1) containing a mesogenic group with a molecular weight of greater than 280 and a repeating unit (2) with a molecular weight of 280 or less, a content of the repeating unit (2) is less than 14% by mass with respect to a total mass of the compound, and a content of the dichroic substance is greater than 2% by mass with respect to a total solid content of the composition.

Liquid-crystalline compounds with a terminal 5,6-difluoro-benzo[b]thiophene ring as provided by formula I, liquid crystal mixtures using the compounds, the use of the compounds in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, and liquid crystal displays that contain a liquid crystal material of this type.

The invention discloses an anionic surfactant and a preparation method and application thereof.The anionic surfactant has a double-wedge-shaped molecular structure, alkaline earth metal benzene sulfonate serves as a polar hydrophilic wedge tip, a long-chain alkoxy flexible chain segment serves as a hydrophobic wedge group, the surface tension of water can be remarkably reduced in an aqueous solution, and the anionic surfactant has excellent emulsifying capacity. The molecular structure is based on alkaline earth metal benzene sulfonate and has good thermotropic and lyotropic liquid crystallinity, the liquid crystal phase temperature range of the molecular structure exceeds 140 DEG C, and the phase transition temperature and the mesogenic state temperature range can be controlled by adjusting the number of carbon atoms of an alkoxy substituent. When in a mesogenic state, the molecules can form a supramolecular columnar phase through self-assembly aggregation, and the columnar structure can form a transmission channel with ion recognition in the column center direction. By utilizing the characteristic, a novel bionic ion selective conduction membrane can be constructed, and the biomimetic ion selective conduction membrane has wide application potential in the aspects of preparation of ion selective electrodes and chemical sensors and the like.

The invention discloses a liquid crystal composition, a display panel and a display device. The liquid crystal composition comprises a liquid crystal compound, a self-alignment compound and a polymerizable compound, the polymerizable compound comprises a first compound, and the first compound has a structural formula I shown as a formula I; the liquid crystal composition provided by the invention has the polymerizable compound, and a dibenzo five-membered ring containing X exists in the polymerizable compound, so that a rigid conjugated skeleton is formed, and the stability and migration rate of free radicals in the polymerizable compound in the ultraviolet irradiation process are enhanced; in addition, the rigid skeleton optimizes the molecular arrangement and reaction site accessibility of the polymerizable compound, so that the ultraviolet light irradiation efficiency is effectively improved, the residual quantity of the polymerizable compound is reduced, and the reliability of the display panel is improved.

Described herein are inhibitors of lipoprotein(a) (Lp(a)) assembly, methods of making such inhibitors, pharmaceutical compositions and medicaments comprising such inhibitors, and methods of using such compounds in the treatment of conditions, diseases, or disorders that would benefit from inhibition of Lp(a) assembly.

The invention relates to the technical field of dimming films, in particular to a black dichroic dye composition, a PDLC (Polymer Dispersed Liquid Crystal) dimming film as well as a preparation method and application of the PDLC dimming film. Comprising a compound of formula D1, a compound of formula D2 and a compound of formula D3; formula D1; formula D2; formula D3; the black dichroic dye composition is a total anthraquinone black dye composition, the value a of the prepared dimming film is-5-5 and the value b of the prepared dimming film is-5-5 at 0V, and Eab is smaller than or equal to 2 at 0V and 48V, and compared with azo dichroic dye, the black dichroic dye composition has better heat insulation and sun protection performance and meets the use requirements in automobile panoramic skyscreens, skylight dimming glass and building glass.

A ferroelectric nematic liquid crystal medium is provided. The novel LC media exhibit a ferroelectric nematic phase at ambient temperature. They contain at least one compound of the group of formula IA, formula IB, and formula IC-1 / IC-2 / IC-3, respectively, where the variables have the meanings indicated in the description and claims. The mixtures are useful in electro-optics, electronics, electromechanics, and other applications for materials with very high dielectric constants and other energy-saving applications. TIFF2023553865000104.tif185166

To provide a liquid crystal polymer composition that exhibits excellent compoundability and enhanced thermal conductivity while maintaining mechanical strength, toughness, fluidity, and heat resistance of a liquid crystal polymer.SOLUTION: A liquid crystal polymer composition of the present invention comprises a liquid crystal polymer, a plate-like filler having an aspect ratio of 3 or more, a glass fiber having an average fiber diameter of 5 to 15 μm, and a polybenzazole fiber having an average fiber diameter of 5 to 15 μm.SELECTED DRAWING: None

The invention relates to a high-stability low-voltage driven liquid crystal dimming film, which is provided with a first conductive film, a liquid crystal dimming layer and a second conductive film, and is characterized in that the liquid crystal dimming layer is positioned between the first conductive film and the second conductive film and contains liquid crystal, polymer or ionic liquid; the mass of the polymer is not less than 30% of the total mass of the polymer and the liquid crystal, and the weight percentage of the total mass of the ionic liquid and the liquid crystal dimming layer is less than 2%. And by adding the ionic liquid, the driving voltage is reduced. Through a small proportion of ionic liquid, the breakdown risk is obviously reduced, and the stability of the liquid crystal dimming film is improved.

The invention provides a fullerene pyrrolidine enantiomer mediated cholesteric liquid crystal with circular polarization luminescence property and nonlinear anti-saturated absorption property, and a preparation method and application thereof. The method comprises the following steps: dissolving C60, paraformaldehyde and (R / S)-(+ / -)-alpha-methylbenzylamine in an organic solvent, and carrying out heating reflux reaction to obtain fullerene pyrrolidine enantiomer molecules; dissolving in carbon disulfide to obtain an enantiomer solution; dissolving achiral dye molecules in a solvent to obtain a dye solution; and dropwise adding the enantiomer solution and the dye solution into thermotropic liquid crystal molecules, and drying to obtain the thermotropic liquid crystal. The method is simple, the obtained cholesteric liquid crystal system shows a characteristic fingerprint texture and has a periodic spiral structure, and the doping proportion of chiral molecules is easy to adjust; the composite system has good time stability and is not prone to phase separation; the liquid crystal platform shows good circular polarization luminescence performance and third-order nonlinear optical property, and is a cholesteric liquid crystal platform with an integrated function.

The present invention provides a liquid crystal composition and a liquid crystal display device. The liquid crystal composition comprises at least one compound of general formula I and at least one compound selected from compounds of general formula II-1 and / or general formula II-2. The liquid crystal composition provided in the present invention has an appropriate optical anisotropy, an appropriate clearing point, a lower rotational viscosity, a higher Kave value and a higher ε⊥ / Δε ratio, and has higher transmittance and contrast rate, and a remarkable low-temperature storage performance at the same time.

The invention relates to polymerizable liquid crystal formulations (as a subcategory of liquid crystal material), especially to polymerizable ink formulations for inkjet printing, which are preferably PFAS-free (for enabling the reduction of perfluorocarbons and providing an environment friendly material), and which are comprising one or more polymerizable mesogenic compounds, also known as reactive mesogens (RMs), and one or more organic solvents selected from the group of aromatic ester and aromatic or aliphatic diester solvents, to polymers and polymer films obtained from such formulations, and to the use of the formulations, polymers and polymer films in optical or electrooptical components or devices, especially for digital optics or augmented reality or virtual reality (AR / VR) applications like polarizers, optical compensators, reflective films, diffraction or surface gratings, Bragg polarization gratings (Bragg PG), polarization volume gratings (PVG), polarization volume holograms (PVH), Pancharatnam Berry (PB) gratings, nonmechanical beam steering elements, optical waveguides, optical couplers, optical combiners, polarization beam splitters, partial mirrors, lenses or PB lenses.

A compound represented by formula (1) or formula (11).　X-A1-(N=N-A2)n-N=N-A3-Y … (1) (In formula (1), -A1- and -A2- each independently represent a divalent group of an optionally substituted aromatic heterocycle including one or more S atoms in which atoms other than carbon atoms constituting the aromatic heterocycle are not adjacent, a divalent group of an optionally substituted benzoisothiazole ring, or a divalent group of an optionally substituted aromatic hydrocarbon ring, -A3- represents a divalent group of an optionally substituted aromatic hydrocarbon ring, -X represents a branched C3 or higher alkyl group, alkoxy group, or alkylsulfanyl group, -Y represents a monovalent organic group, and n represents 1, 2, or 3.　When n is 2 or 3, the multiple -A2- may be the same or different.　However, -A1- and -A2- are not both divalent groups of an optionally substituted aromatic hydrocarbon ring.)　X-A41-(N=N-A42)n-N=N-A43-Y … (11) (In formula (11), at least one -A42- is a divalent group of an optionally substituted aromatic heterocycle including one or more S atoms, -A41- and -A43- each independently represent a divalent group of an optionally substituted aromatic hydrocarbon ring, X represents a branched C3 or higher alkyl group, alkoxy group, or alkylsulfanyl group, -Y represents a monovalent organic group, and n represents 1, 2, or 3.　When n is 2 or 3, the multiple -A42 may be the same or different.)

The invention discloses a liquid crystal compound, a liquid crystal composition containing the same and a liquid crystal display device. The liquid crystal compound is shown in the following formula I, X1 and X2 independently represent H, halogen, alkyl with the carbon atom number being 1-10, alkoxy with the carbon atom number being 1-10 or alkenyl with the carbon atom number being 2-10, X1 and X2 do not represent H and halogen at the same time, and when one of X1 and X2 is alkyl, alkoxy or alkenyl, the other is not H. The liquid crystal compound has the advantages that the K value change is small after UV irradiation, the K11 / delta epsilon value change is small, and the response speed at the low temperature is high; the liquid crystal composition containing the liquid crystal compound also has the advantages of small K value change after UV irradiation, small K11 / delta epsilon value change and higher low-temperature response speed, and can be used for developing liquid crystal display devices with stable threshold voltage, stable contrast and higher low-temperature response speed after UV irradiation. I

Provided are: a liquid crystal aligning agent which contains two or more types of polyamic acids and which suppresses variations in the pretilt angle of a liquid crystal aligning film when stored at room temperature; a liquid crystal aligning film obtained from the liquid crystal aligning agent; and a liquid crystal display element. The liquid crystal aligning agent is characterized in that the liquid crystal aligning agent can form a liquid crystal alignment film with a pretilt angle of more than 0 degree and less than 3 degrees, and the liquid crystal aligning agent contains the following polymer (A) and polymer (B) or the following polymer (B) and polymer (B '). (Here, polymer (A) does not include polymer (B)) Polymer (A): a polyamic acid (A) having a structural unit derived from a tetracarboxylic acid derivative and a structural unit derived from a diamine, the polyamic acid containing, as the structural unit derived from the tetracarboxylic acid derivative, a structural unit (a-1Ta) represented by formula (1Ta) and containing, as the structural unit derived from the diamine, a structural unit (a-1Da) represented by formula (1Da). Polymer (B): a polyamic acid (B) having a structural unit derived from a tetracarboxylic acid derivative and a structural unit derived from a diamine, the polyamic acid containing, as the structural unit derived from the tetracarboxylic acid derivative, a structural unit (b-1Tb) represented by formula (1Tb), and containing, as the structural unit derived from the diamine, a structural unit (b-1Db) represented by formula (1Db). At least a part of the terminal of the polyamic acid (B) contains a non-amino group, the non-amino group is a functional group represented by structural formula (E), and the presence rate of the terminal amino group in the polyamic acid (B) is 60% or less based on the total terminal of the polyamic acid (B). Polymer (B '): a polyamic acid (B') having a structural unit derived from a tetracarboxylic acid derivative and a structural unit derived from a diamine, the polyamic acid containing a structural unit (b-1Tb) represented by formula (1Tb) as the structural unit derived from the tetracarboxylic acid derivative and not containing a structural unit (a-1Da) represented by formula (1Ta), and the polyamic acid containing a structural unit (b-1Da) represented by formula (1Ta) as the structural unit derived from the diamine as the structural unit derived from the diamine. The polyamic acid (B) contains a structural unit (b-1Db) represented by formula (1Db) or a structural unit (b-1Db ') represented by formula (1Db'), and the content of terminal amino groups in the polyamic acid (B ') is greater than 60% based on the total terminals of the polyamic acid (B). (Definition of each symbol is as defined in the specification) (Definition of each symbol is as defined in the specification) (Definition of each symbol is as defined in the specification) (Definition of each symbol is as defined in the specification) .

Provided are colored resin particles capable of controlling a gap between base materials with high accuracy and suppressing light transmission. The colored resin particle according to the present invention includes a resin particle and a colorant, wherein when lightness in an L*a*b* color system in accordance with JIS Z 8781-4: 2013 is measured for each of the colored resin particle before light irradiation and the colored resin particle after light irradiation irradiated with light at an integrated light amount of 540 MJ / m2, a lightness L0* of the colored resin particle before light irradiation is 0 or more and 60 or less, and a ratio of the lightness L0* of the colored resin particle before light irradiation to a lightness L540* of the colored resin particle after light irradiation is 0.3 or more.

Provided are a light control member and a display device including the same that exhibit excellent light extraction efficiency and low reflection characteristics by including: a light control layer having a base resin region, and a light conversion region in which a plurality of light converters are aggregated, wherein each of the light converters includes: a quantum dot; and a liquid crystal ligand bonded to a surface of the quantum dot.

The present invention provides liquid crystals and compositions thereof (e.g., liquid crystal-based scaffolds) for manufacturing various organoids, such as tumor organoids, as well as spheroids and / or 3D cell aggregates.