34 results about "Polymeric liquid crystal" patented technology

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.

A light-emitting module and a display device are provided. The light-emitting module includes a light-emitting plate and a first light-adjusting plate, and the first light-adjusting plate is located on a light-exiting side of the light-emitting plate. The first light-adjusting plate includes: a first polymer liquid crystal layer including polymer networks and liquid crystal molecules dispersed in the polymer networks; and a first electrode layer and a second electrode layer disposed oppositely on two sides of the first polymer liquid crystal layer. The first electrode layer includes at least two first electrodes spaced apart.

The invention relates to the technical field of flexible sensors, and particularly discloses breathable ion skin which comprises water, a polymer, a liquid crystal and a conductive ion active substance. The material with unique soft elasticity is prepared by combining the orderly-oriented liquid crystal material and the polymer elastomer, the excellent adhesion stability can be kept under the cyclic load, and the stripping interface toughness is high. The composite fiber membrane of a liquid crystal elastomer core-ion skin shell structure is prepared through coaxial electrostatic spinning, the liquid crystal elastomer core provides good structural stability and adhesion stability, the ion skin shell provides good signal detection capacity, and meanwhile, the porous membrane structure prepared through electrostatic spinning has the ultrahigh water vapor permeability and can be used for preparing the composite fiber membrane of the liquid crystal elastomer core-ion skin shell structure. Sweat generated at the contact site of the ion skin and the human skin can be quickly volatilized, sweat accumulation is reduced, and the human skin does not have inflammatory response after the ion skin is worn for a long time.

One embodiment of the present application provide a polymer dispersed liquid crystal display including a first electrode; a second electrode on the first electrode; and a PDLC layer disposed between the first electrode and the second electrode; wherein the PDLC layer includes a liquid crystal droplet and a polymer surrounding the liquid crystal droplet, the liquid crystal droplet has a size in the range of 0.8 to 1.5 μm, the PDLC layer has a thickness in the range of 15 to 25 μm, and wherein the polymer dispersed liquid crystal display has multiple domains driven individually.

The present invention addresses the problem of providing a cured film-forming composition for forming a cured film for forming an alignment material which has excellent solvent resistance, can align polymerizable liquid crystals with high sensitivity, and has little liquid crystal rejection. [Solution] A composition for forming a cured film, an alignment material, and a phase difference material. The composition for forming a cured film contains (A) a compound having a photo-alignment group, (B) a polymer having a structural unit having an N-hydroxymethyl group or an N-alkoxymethyl group, and (C) a cyclodextrin derivative in which some or all of hydroxyl groups are modified.

According to the diffusion plate, the display module and the display device, the diffusion plate comprises the first electrode layer, the second electrode layer and the polymer liquid crystal layer arranged between the first electrode layer and the second electrode layer, and the polymer liquid crystal layer can be regulated and controlled by applying or not applying an electric field between the first electrode and the second electrode; further, the diffusion plate can be controlled to realize switching between a haze state and a transparent state, and the size of the haze of the diffusion plate can be controlled by adjusting the intensity of the applied electric field; the packaging layer with the large haze is arranged on the side, away from the polymer liquid crystal layer, of the first electrode layer and / or the second electrode layer, light emitted from the diffusion plate can be further atomized, the haze adjusting capacity is improved, and flexible and variable adjustment of the haze is achieved. When the diffusion plate is applied to the display module, switching between the haze state and the high-definition transparent state of the display module can be achieved, flexible switching between education products and entertainment products can be achieved, and the haze of the display module can be flexibly adjusted.

The invention provides a polymerizable liquid crystal mixture not prone to precipitation, a polymerizable composition containing the polymerizable liquid crystal mixture and a phase difference film, and relates to the technical field of optical material preparation. The polymerizable liquid crystal mixture contains a polymerizable liquid crystal compound A and a polymerizable liquid crystal compound B having different structures. The phase difference film prepared from the polymerizable composition is not easy to crystallize in the manufacturing process, has good surface morphology, and shows excellent reverse wavelength dispersibility.

The application discloses a display device with switchable viewing angle and a driving method thereof. The display device comprises a backlight module and a display panel, and the display panel can be switched between a wide viewing angle and a narrow viewing angle. The backlight module comprises a backlight source and a first liquid crystal box, and the first liquid crystal box is used for controlling the astigmatic range of the backlight module. The first liquid crystal box comprises a first substrate, a second substrate and a polymer liquid crystal layer between the first substrate and the second substrate. When the display device displays in the wide viewing angle, the display panel is switched to the wide viewing angle mode, and the astigmatic range of the backlight module is adjusted to control the viewing angle range of the wide viewing angle display. When the display device displays in the narrow viewing angle, the display panel is switched to the narrow viewing angle mode, and the astigmatic range of the backlight module is adjusted to control the viewing angle range of the narrow viewing angle display. By arranging the first liquid crystal box in the backlight module, the astigmatic range of the backlight module can be adjusted arbitrarily, so that the display device has a large adjustable viewing angle range when displaying in the wide viewing angle and the narrow viewing angle.

A virtual image display device includes a display, and an optical member, in which the optical member includes a lens member, a transmissive reflective optical element provided facing a first optical surface of the lens member that is close to the display, a reflective polarizing optical element provided facing a second optical surface of the lens member that is far from the display and reflects first polarized light, that is, image light linearly polarized light in a first polarization direction, and a wave plate provided between the reflective optical element and the polarizing optical element, is formed of a photo-crosslinkable polymeric liquid crystal material, converts the image light, that is, linearly polarized light in the first polarization direction, and converts the image light, that is reflected by the reflective optical element to reciprocate, into second polarized light in a second polarization direction.

To provide an alignment layer forming material giving an alignment layer having high light transmittance in a transmissive state and high adhesion between a polymer liquid crystal layer and a substrate.SOLUTION: A compound represented by the following formula (C2) or (C3): SELECTED DRAWING: None

A polymer liquid crystal dimming box, a manufacturing method thereof, and a display module are provided. The polymer liquid crystal dimming box includes a first substrate, a second substrate, a polymer liquid crystal layer, a frame adhesive layer and a light-shielding structure. The light-shielding structure is disposed between the frame adhesive layer and the polymer liquid crystal layer and surrounds the polymer liquid crystal layer. The light-shielding structure is used to absorb ultraviolet light obliquely incident during the curing process of the frame adhesive layer. In this way, the problem that the polymer liquid crystal layer is cured in advance due to ultraviolet light irradiation can be avoided, the edge failure of the polymer liquid crystal dimming box can be improved, which is conducive to mass production.

The invention belongs to the field of display, and particularly relates to a display panel and a display device.The display panel comprises a pixel structure layer, a first dimming structure layer and a second dimming structure layer, the pixel structure layer comprises a plurality of sub-pixels arranged at intervals, the first dimming structure layer is arranged on one side of the pixel structure layer, and the second dimming structure layer is arranged on the other side of the pixel structure layer; the first dimming structure layer comprises a first electrode layer, a polymer liquid crystal layer and a second electrode layer which are arranged in a stacked mode, the first electrode layer comprises a first electrode unit, the orthographic projection of the first electrode unit on the pixel structure layer is located in an area between sub-pixels, and the second dimming structure layer is arranged on the side, away from the pixel structure layer, of the first dimming structure layer. Or arranged between the pixel structure layer and the first dimming structure layer and used for converting the oblique light of the sub-pixels into collimated light or filtering the oblique light. A part of the polymer liquid crystal layer is controlled by the first electrode unit to form a light-transmitting state or a scattering state, a switch with a peep-proof function can be realized, and the problem that the switch with the peep-proof function of the display panel is inconvenient is solved.

A personal cleansing composition includes: (a) a surfactant system, wherein the surfactant system includes: from about 0.1% to about 5%, of a fatty acyl isethionate surfactant; from about 0.5% to about 40%, of a co-surfactant, wherein the co-surfactant is selected from the group consisting of an anionic surfactant being not an isethionate surfactant, a non-ionic surfactant, an amphoteric surfactant, a zwitterionic surfactant, and mixtures thereof; (b) from about 0.05% to about 5%, of a natural polysaccharide, a chemically modified natural polysaccharide, or a combination thereof; wherein the personal cleansing composition includes a first and second phase, wherein the first phase is an isotropic and micellar surfactant phase; wherein the second phase is a polymer liquid crystalline phase which includes polymer liquid crystals of the natural polysaccharide, the chemically modified natural polysaccharide, or the combination.

The invention belongs to the technical field of holographic optics, and particularly relates to a holographic polymer liquid crystal composite material which comprises monomers, a photosensitizer, a photo-initiation system and liquid crystals, the photosensitizer is BDEA, the photo-initiation system is HABI and MBO, the photosensitizer and the photo-initiation system form a three-component system BDEA / HABI / MBO, the monomers comprise POEA and TMPEOTA, and the TMPEOTA has Mn-692. The liquid crystal is a nematic P0616A type liquid crystal, the P0616A liquid crystal and a BDEA / HABI / MBO three-component photo-initiation system are combined and applied to a holographic polymeric material for the first time, a breakthrough is made in the aspects of improving holographic recording sensitivity and pattern resolution to form a clear polymer-liquid crystal interphase structure, and the diffraction efficiency of holographic patterns is improved. The holographic recording system with high efficiency and low energy consumption is realized, and the application range of holographic recording materials is expanded.

Provided is a liquid crystal light control element using a liquid crystal composition including a liquid crystal and a chiral compound, in which display defects due to alignment defects of the liquid crystal and burn-in defects do not occur even when the liquid crystal light control element is subjected to prolonged light irradiation.　Provided is a liquid crystal light control element having a variable transmittance in response to voltage application, the liquid crystal light control element being characterized by comprising a pair of substrates provided with electrodes, a liquid crystal layer provided between the substrates and including liquid crystal molecules twist-aligned when a voltage is not applied, a liquid crystal alignment film (A) that substantially vertically aligns the liquid crystal between one substrate and the liquid crystal layer, and a liquid crystal alignment film (B) that substantially horizontally aligns the liquid crystal between the liquid crystal layer and the other substrate, the liquid crystal layer including a chiral compound and liquid crystal having positive dielectric anisotropy, the liquid crystal alignment film (A) including a polymer having a structure indicated by formula [1], the liquid crystal alignment film (B) including a polymer having a structure indicated by formula [2], and d / p being 1 to 10, where d is the thickness of the liquid crystal layer and p is the chiral pitch of the liquid crystal of the liquid crystal layer.

The present invention provides a holographic polymer liquid crystal material, a preparation method thereof and an application thereof. In terms of mass percentage, the holographic polymer liquid crystal material comprises 20-50% of a nematic liquid crystal composition, 30-80% of an acrylate monomer, 1-20% of glue and 0.1-5% of a photoinitiator; the nematic liquid crystal composition comprises component A and component B; component A comprises at least one of the compounds having the structure shown in formula I; component B comprises at least one of the compounds having the structure shown in formula II; the acrylate monomer comprises at least one of the compounds having the structure shown in formula III. In the present invention, by selecting a nematic liquid crystal composition and an acrylate monomer having specific structures, the volume holographic grating comprising the material has high diffraction efficiency, low haze, and can be switched between a holographic state and a transparent state, and has a wide application range.

The black PDLC dimming film comprises a first flexible base material, a first conductive layer, a polymer liquid crystal layer, a second conductive layer and a second flexible base material which are stacked in sequence, a liquid crystal material in the polymer liquid crystal layer comprises liquid crystal molecules and dye molecules doped in high-molecular polymers, and dielectric anisotropy epsilon of the liquid crystal molecules is positive. The polaroid is arranged on a path of emergent light of the polymer liquid crystal layer, the structure of the polaroid can be similar to an optical filter, and light in a certain specific polarization direction can selectively pass through the polaroid, so that scattered light in other directions can be blocked. The color of the polaroid is gray black, and the combination of the two can change the effect that the traditional PDLC dimming film is not high enough in grade due to the foggy white color, so that the PDLC dimming film is suitable for higher-grade application scenes.

This invention discloses a PDLC dimming film with a wide light response range and high photoexcitation efficiency, comprising a first transparent conductive layer, a polymer-liquid crystal composite material layer, and a second transparent conductive layer stacked sequentially. The polymer-liquid crystal composite material layer comprises photopolymerizable monomers, crosslinking agents, liquid crystals, photoinitiators, and AgVO3 nanowires. In the raw materials, the weight percentage of the photopolymerizable monomers is 1 to 5 times that of the crosslinking agent; the weight percentage of the photoinitiator is 0.5 to 2% of the sum of the weight percentages of the photopolymerizable monomers, crosslinking agents, and liquid crystals; and the weight percentage of the AgVO3 nanowires is 0.25 to 0.60% of the sum of the weight percentages of the photopolymerizable monomers, crosslinking agents, and liquid crystals. This invention creatively introduces AgVO3 nanowires into the PDLC dimming film, which, in synergy with the other components, exhibits a wide light response range and high photoexcitation efficiency.

The invention discloses a graphene conductive film, a preparation method, a dimming film containing the graphene conductive film and a preparation method of the dimming film. The conductive film comprises a PET substrate, a polydopamine layer, a graphene conductive layer and a PEDOT layer. The PET substrate is at least provided with a first surface and a second surface which are oppositely arranged in the thickness direction of the PET substrate, the first surface is a surface subjected to hydrophilic treatment, the first surface is covered with the polydopamine layer, the outer surface, away from the first surface, of the dopamine layer is covered with the graphene conducting layer, and the graphene conducting layer is arranged on the outer surface of the graphene conducting layer. The PEDOT layer covers the outer surface of the graphene conductive layer; according to the scheme, the advantages that the graphene is uniformly dispersed, and the graphene can be firmly combined with the PET film can be realized; the PEDOT layer is arranged as a protective layer of the graphene conductive layer, and PEDOT: PSS belongs to a conductive polymer and has conductivity after being cured, so that graphene cannot fall off in the conductive film, and meanwhile, the response speed of the dimming film can be improved and diffusion and reaction between the graphene layer and polymer liquid crystals can be blocked by virtue of the conductivity of graphene in the use process.

A virtual image display device includes a display, and an optical member, in which the optical member includes a lens member, a transmissive reflective optical element provided facing a first optical surface of the lens member that is close to the display, a reflective polarizing optical element provided facing a second optical surface of the lens member that is far from the display and reflects first polarized light, that is, image light linearly polarized light in a first polarization direction, and a wave plate provided between the reflective optical element and the polarizing optical element, is formed of a photo-crosslinkable polymeric liquid crystal material, converts the image light, that is, linearly polarized light in the first polarization direction, and converts the image light, that is reflected by the reflective optical element to reciprocate, into second polarized light in a second polarization direction.

The invention provides an atomization lens module and a camera, glasses and a mobile phone using the atomization lens module, the atomization lens module comprises a box body, an atomization lens main body, a mounting structure and a driving structure, and the atomization lens main body is provided with a polymer liquid crystal layer and ITO conductive layers at two sides; and the driving structure is linked with the target equipment and outputs or stops driving the alternating current electric field according to the working or standby state of the target equipment, so that the transparency of the polymer liquid crystal layer and automatic switching of the atomization state are realized. The structure is applied to target equipment, imaging is not affected during shooting, the working state is visually prompted, and the lens is shielded during standby; automatic light transmission state switching based on the equipment working condition is achieved, manual intervention is not needed, the contradiction between lens concealment and privacy protection is effectively solved, and meanwhile the defect that the equipment working state is not visually prompted is overcome.

A personal cleansing composition includes: (a) a surfactant system, wherein the surfactant system includes: from about 0.1% to about 5%, of a fatty acyl isethionate surfactant; from about 0.5% to about 40%, of a co-surfactant, wherein the co-surfactant is selected from the group consisting of an anionic surfactant being not an isethionate surfactant, a non-ionic surfactant, an amphoteric surfactant, a zwitterionic surfactant, and mixtures thereof; (b) from about 0.05% to about 5%, of a natural polysaccharide, a chemically modified natural polysaccharide, or a combination thereof; wherein the personal cleansing composition includes a first and second phase, wherein the first phase is an isotropic and micellar surfactant phase; wherein the second phase is a polymer liquid crystalline phase which includes polymer liquid crystals of the natural polysaccharide, the chemically modified natural polysaccharide, or the combination.

This invention discloses a functional polymer / liquid crystal composite semiconductor micro / nano laser and its fabrication method. This laser utilizes the Rayleigh instability of the cylindrical liquid interface to form a functional polymer / liquid crystal spindle structure with a specific morphology on the surface of semiconductor micro / nanowires. This constructs a composite optical microcavity that enhances optical field confinement and suppresses radiation loss, thereby improving the quality factor of the resonant cavity, compressing the resonant linewidth, and lowering the laser threshold. Furthermore, by controlling the size parameters of the functional polymer / liquid crystal spindle and its coverage position on the semiconductor micro / nanowire surface, effective control of the resonant mode is achieved. Based on the relevant properties of the semiconductor material and the polymer / liquid crystal cladding material, this invention exhibits excellent photostability under pulsed light pumping and long-term detection conditions, significantly enhancing the device's specific recognition capability of analyte molecules and its high-sensitivity sensing performance.

The invention discloses a polymer dispersed liquid crystal dimming film and a preparation method and application thereof, and belongs to the technical field of liquid crystal materials.The polymer dispersed liquid crystal dimming film comprises a first transparent conducting layer, a polymer liquid crystal composite material layer and a second transparent conducting layer which are sequentially stacked, the polymer liquid crystal composite material layer is prepared from the following raw materials: an ultraviolet polymerizable monomer, a cross-linking agent, liquid crystal and an ultraviolet initiator; the ultraviolet polymerizable monomer comprises acrylic ester with hydroxyl, acrylic ester with a large group at the tail end and acrylic ester with an alkyl chain at the tail end. According to the PDLC light adjusting film, the adhesion strength exceeds 285N, the contrast ratio exceeds 120, the problems that in the prior art, a PDLC light adjusting film is insufficient in adhesion strength and low in contrast ratio in an outdoor scene are solved in a targeted mode, and the PDLC light adjusting film can be widely applied to the fields of outdoor intelligent windows, automobile sunroofs and the like.

A personal cleansing composition includes: (a) a surfactant system, wherein the surfactant system includes: from about 0.1% to about 5%, of a fatty acyl isethionate surfactant; from about 0.5% to about 40%, of a co-surfactant, wherein the co-surfactant is selected from the group consisting of an anionic surfactant being not an isethionate surfactant, a non-ionic surfactant, an amphoteric surfactant, a zwitterionic surfactant, and mixtures thereof; (b) from about 0.05% to about 5%, of a natural polysaccharide, a chemically modified natural polysaccharide, or a combination thereof; wherein the personal cleansing composition includes a first and second phase, wherein the first phase is an isotropic and micellar surfactant phase; wherein the second phase is a polymer liquid crystalline phase which includes polymer liquid crystals of the natural polysaccharide, the chemically modified natural polysaccharide, or the combination.

The invention relates to a display device. The display device comprises a display panel, a dimming layer, a first light source and an electronic element, the display device comprises a first display area and a second display area, an electronic element is located in the second display area, a dimming layer comprises a first substrate, a second substrate and a polymer liquid crystal layer, the first substrate and the second substrate are oppositely arranged, the polymer liquid crystal layer is located between the first substrate and the second substrate, and the display device is switched between a first state and a second state. The haze of the polymer liquid crystal layer in the second display area when the display device is in the first state is greater than that of the polymer liquid crystal layer in the second display area when the display device is in the second state; according to the display device, light guiding is achieved through haze adjustment of the polymer liquid crystal layer, so that whole-screen display of the display device is achieved.

The invention provides a patterned phase difference plate and a manufacturing method thereof. The patterned phase difference plate which is large in area and excellent in long-distance dimensional stability of a phase difference region is manufactured through a relatively simple method. The patterned phase difference plate is manufactured by a method including a step of applying a liquid crystal aligning agent to form a coating film, a step of exposing the coating film through a photomask to form a photo-alignment film, and a step of applying polymerizable liquid crystal on the photo-alignment film and hardening the polymerizable liquid crystal to form a liquid crystal layer. The liquid crystal aligning agent contains a polymer having a cinnamate structure, an azobenzene structure or a main chain decomposition type structure. The glass substrate is provided with an alignment mark part serving as an alignment index for the glass substrate on a substrate surface on which the liquid crystal aligning agent is coated. In the scanning exposure, the relative position of the photomask with respect to the alignment mark portion is detected, and the coating film is irradiated with radiation while the relative position of the photomask with respect to the glass substrate is corrected on the basis of the detection result.

The objective of this invention is to provide an optical film, an optical laminate, and an image display device that, when used in self-emissive image display devices employing inorganic EL elements and organic EL elements, can achieve both anti-reflective properties against external light and improved utilization efficiency of light emitted by the light-emitting element. The optical film of this invention is an anisotropic light-absorbing film formed from a cured liquid crystal composition comprising a polymeric liquid crystal compound and a dichroic pigment compound. The anisotropic light-absorbing film has a region A with an inclination of θA relative to the absorption axis of the film surface and a region B with an inclination of θB relative to the absorption axis of the film surface within the same film surface, and θA and θB satisfy the following relationships: |θA-θB|≥10° (Equation (1)) and 0°≤θB≤5° (Equation (2)).

The invention discloses a PDLC (Polymer Dispersed Liquid Crystal) dimming film with wide light response range and high light excitation efficiency, which comprises a first transparent conductive layer, a polymer liquid crystal composite material layer and a second transparent conductive layer which are sequentially stacked, and the polymer liquid crystal composite material layer comprises the following raw materials: a photopolymerizable monomer, a cross-linking agent, a liquid crystal, a photoinitiator and an AgVO3 nanowire; in the raw materials, the parts by weight of the photo-polymerizable monomer is 1-5 times of the parts by weight of the cross-linking agent; the weight part of the photoinitiator is 0.5-2% of the sum of the weight part of the photopolymerizable monomer, the weight part of the cross-linking agent and the weight part of the liquid crystal; and the weight part of the AgVO3 nanowire is 0.25-0.60% of the sum of the weight part of the photopolymerizable monomer, the weight part of the cross-linking agent and the weight part of the liquid crystal. According to the invention, the AgVO3 nanowire is creatively introduced into the PDLC light adjusting film and is cooperated with other components, so that the PDLC light adjusting film has a wide light response range and light excitation efficiency.

The application discloses a holographic 3D display system based on a polymer liquid crystal scattering film, combines a spatial light modulator (SLM) with ML-PDLCs, calculates holograms of different layers of an object to be displayed first, then reproduces the holograms through the SLM, places ML-PDLCs at the reproduction image positions, and the reproduction images of different layers correspond to the ML-PDLC film layers one by one. The ML-PDLCs are used as a projection two-dimensional image receiving screen of the SLM, all the film layers of the ML-PDLCs are in a transparent state under power supply at the beginning, when an image of a layer is reproduced, the corresponding film layer is in a scattering state under power-off, and the reproduction image is displayed on the film layer. All the broken layer holograms are displayed one by one, the corresponding ML-PDLC film layers are sequentially powered on and powered off, and the reproduction image is sequentially displayed on the corresponding film layers. Assuming that the object is decomposed into N layers, the ML-PDLCs are used as the projection two-dimensional image receiving screen of the SLM, the projection frame frequency of the SLM and the power-on time sequence of the ML-PDLC film layers are controlled, different two-dimensional images can be projected to different ML-PDLC film layers for display, and a complete three-dimensional image with continuous depth can be seen.