WO2021185156A1 - 一种反式聚合物分散液晶显示器件 - Google Patents

一种反式聚合物分散液晶显示器件 Download PDF

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WO2021185156A1
WO2021185156A1 PCT/CN2021/080329 CN2021080329W WO2021185156A1 WO 2021185156 A1 WO2021185156 A1 WO 2021185156A1 CN 2021080329 W CN2021080329 W CN 2021080329W WO 2021185156 A1 WO2021185156 A1 WO 2021185156A1
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group
carbon atoms
liquid crystal
atoms
formula
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French (fr)
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李锐
颜希哲
任惜寒
李敬磊
李正强
刘露露
张珂
刘圣贤
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石家庄诚志永华显示材料有限公司
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Priority to JP2021517857A priority Critical patent/JP7121196B2/ja
Publication of WO2021185156A1 publication Critical patent/WO2021185156A1/zh

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings

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  • the invention relates to the technical field of liquid crystal applications. More specifically, it relates to a trans-polymer dispersed liquid crystal display device.
  • Polymer dispersed liquid crystal is a mixture of liquid crystal molecules and prepolymers, phase separation occurs through polymerization, and liquid crystal droplets are uniformly dispersed in the polymer three-dimensional network, and finally a photoelectric response characteristic is formed.
  • Material For forward PDLC, when no electric field is applied, the directors of the liquid crystal molecules are irregularly distributed, and their effective refractive index neff does not match the polymer refractive index np, and the film is in a light scattering state, called a fog state; when an electric field is applied, The long axis of the liquid crystal molecules are aligned parallel to the electric field, and their effective refractive index matches the refractive index of the object.
  • the film is in a light-transmitting state, which is called a transparent state. If it is applied to a scene that needs to be transparent for a long time, such as architectural glass or car windows, the forward PDLC needs to be continuously supplied with electricity, which causes a large amount of energy loss and high usage costs. Therefore, it is necessary to design a PDLC that maintains a transparent state when the power is not applied, and converts to a fog state when the power is applied, called a reverse PDLC.
  • trans-PDLC devices usually have the problems of high driving voltage and poor contrast. Therefore, there is an urgent need for a trans-PDLC display device with low driving voltage and high contrast.
  • the purpose of the present invention is to overcome the problem of low contrast at lower voltages in the trans-PDLC devices in the prior art.
  • the present invention adopts the following technical solutions on the one hand:
  • the trans-polymer dispersed liquid crystal material comprises a negative nematic liquid crystal composition, a polymerizable monomer, and a UV-curable or heat-curable glue.
  • the negative nematic liquid crystal The composition contains one or more compounds represented by formula I,
  • R 1 means C 1-7 alkyl group, C 1-7 alkoxy group, C 2-7 alkenyl group, C 3-7 alkenyloxy group, any of them
  • One or more H atoms are optionally substituted by F atoms;
  • R 2 represents an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, and an alkenyloxy group having 3 to 7 carbon atoms , Where any one or more H atoms are optionally substituted by F atoms;
  • n 0 or 1
  • R 1 means
  • L 1 and L 2 each independently represent H, Cl, F;
  • One or more H atoms are optionally substituted by F atoms;
  • negative nematic liquid crystal composition further comprises one or more compounds represented by formula IV,
  • R 5 and R 6 each independently represent an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or a carbon number of 3 to The alkenyloxy group of 7, wherein any one or more H atoms are optionally substituted by F atoms;
  • n 0 or 1
  • Z 4 represents a single bond or -C ⁇ C-.
  • the negative nematic liquid crystal composition further comprises one or more compounds represented by formula V,
  • R 7 and R 8 each independently represent C 1-7 alkyl group, C 1-7 alkoxy group, C 2-7 alkenyl group, C 3-7 alkenyloxy group, any of them
  • One or more H atoms are optionally substituted by F atoms;
  • n 0, 1 or 2;
  • polymerizable monomer includes one or more compounds represented by formula VI,
  • R 9 and R 10 each independently represent a H atom, a linear alkyl group having 1 to 5 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, or -CF 3 ;
  • L 3 represents F, Cl, an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, and an alkenyl group having 2 to 6 carbon atoms An oxy group or a cycloalkyl group having 3 to 6 carbon atoms;
  • the compound represented by formula I is selected from the group consisting of the following compounds represented by formula I-1 to formula I-4,
  • the compound represented by formula II is selected from the group consisting of the following compounds represented by formula II-1 to formula II-5,
  • R 11 means
  • R 12 means C 1-7 alkyl group, C 1-7 alkoxy group, C 2-7 alkenyl group, C 3-7 alkenyloxy group, any of them One or more H atoms are optionally substituted by F atoms;
  • R 21 represents an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, and an alkenyloxy group having 3 to 7 carbon atoms , Where any one or more H atoms are optionally substituted by F atoms;
  • One or more H atoms are optionally substituted by F atoms;
  • the compound represented by formula IV is selected from the group consisting of the following compounds represented by formula IV-1 to formula IV-2,
  • R 51 and R 61 each independently represent an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or a carbon number of 3 to The alkenyloxy group of 7, wherein any one or more H atoms are optionally substituted by F atoms.
  • the compound represented by formula VI is selected from the group consisting of the following compounds represented by formula VI-1 to formula VI-4,
  • R 91 and R 101 each independently represent a H atom, -CH 3 or -CF 3 ;
  • L 31 and L 32 each independently represent an F atom, a Cl atom, an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, carbon Alkenyloxy group having 2 to 6 atoms or cycloalkyl group having 3 to 6 carbon atoms;
  • q'and q" each independently represent 0, 1, 2, 3, or 4.
  • the negative nematic liquid crystal composition accounts for 50-85% of the total weight of the trans polymer dispersed liquid crystal material;
  • the ultraviolet curable or thermally curable glue accounts for the trans polymer dispersed liquid crystal material 10-40% of the total weight of the material;
  • the polymerizable monomer accounts for 3-10% of the total weight of the trans polymer dispersed liquid crystal material.
  • trans-polymer dispersed liquid crystal display device which includes a first substrate layer, a first conductive layer, a first alignment layer, and the trans The polymer dispersed liquid crystal material, the second alignment layer, the second conductive layer and the second substrate layer.
  • At least one of the first substrate layer and the second substrate layer has a liquid crystal alignment film for vertically aligning liquid crystals
  • the liquid crystal alignment film is obtained from a liquid crystal alignment treatment agent
  • the liquid crystal alignment treatment agent contains acrylic One or more of polymer, methacrylic polymer, novolac resin, polyhydroxystyrene, polyimide precursor, polyimide, polyamide, polyester, cellulose, and polysiloxane kind of polymer.
  • polyimide precursor or polyimide is composed of one or more of the following diamine compounds represented by formula 1a-1 and/or formula 1a-2 and one or more of formula 1b A polymer obtained by using the tetracarboxylic dianhydride compound shown as a part of the raw material,
  • T 1 represents a single bond or an alkylene group having 1 to 15 carbon atoms, in which one or more non-adjacent -CH 2 -may be optionally replaced by -O-, -CO-, replace;
  • a 1 represents a divalent cyclic group in the group consisting of a benzene ring, a cyclic ring and a heterocyclic ring, or a divalent organic group with 17 to 51 carbon atoms having a steroid skeleton, in which any one or more H Atoms are optionally selected by C1-C3 alkyl groups, C1-C3 alkoxy groups, C1-C3 fluorine-containing alkyl groups, C1-C3 fluorine-containing groups Alkoxy or F atom substitution;
  • a 2 represents a divalent cyclic group in the group consisting of a benzene ring, a cyclic ring and a heterocyclic ring, wherein any one or more H atoms may be optionally substituted by an alkyl group having 1 to 3 carbon atoms, and the number of carbon atoms 1-3 alkoxy groups, fluoroalkyl groups with 1-3 carbon atoms, fluorine-containing alkoxy groups with 1-3 carbon atoms, or F atom substitution;
  • T 2 represents an alkyl group with 1 to 15 carbon atoms, an alkoxy group with 1 to 15 carbon atoms, a fluorinated alkyl group with 1 to 15 carbon atoms, or a fluorinated alkyl group with 1 to 15 carbon atoms Oxy;
  • Y represents a group selected from the group consisting of compounds represented by the following formula a to formula d,
  • a1 and a2 each independently represent 0, 1, 2, 3 or 4;
  • Y 1 and Y 2 each independently represent an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, or an alkynyl group having 2 to 12 carbon atoms;
  • Y 3 represents an alkyl group having 1 to 5 carbon atoms
  • t 1, 2, 3 or 4;
  • a 1 represents selected from the group consisting of the following tetravalent groups:
  • T 1 , T 2 , T 3 , and T 4 each independently represent a H atom, a Cl atom, a methyl group or a benzene ring;
  • T 5 and T 6 each independently represent a H atom or a methyl group.
  • the present invention provides a trans-polymer dispersed liquid crystal material, and a trans-polymer dispersed liquid crystal display device containing the same has the advantage of high contrast under a lower driving voltage compared with the prior art, and significantly improves product quality.
  • Figure 1 shows a schematic diagram of the structure of a trans PDLC device
  • the trans-polymer dispersed liquid crystal material comprises a negative nematic liquid crystal composition, a polymerizable monomer, and a UV-curable or heat-curable glue.
  • the negative nematic liquid crystal composition contains one or more compounds represented by formula I,
  • R 1 means C 1-7 alkyl group, C 1-7 alkoxy group, C 2-7 alkenyl group, C 3-7 alkenyloxy group, any of them
  • One or more H atoms are optionally substituted by F atoms;
  • R 2 represents an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, and an alkenyloxy group having 3 to 7 carbon atoms , Where any one or more H atoms are optionally substituted by F atoms;
  • n 0 or 1
  • R 1 means
  • L 1 and L 2 each independently represent H, Cl, F;
  • One or more H atoms are optionally substituted by F atoms;
  • the compound represented by formula I is selected from the group consisting of the following compounds represented by formula I-1 to formula I-4,
  • the compound represented by formula II is selected from the group consisting of the following compounds represented by formula II-1 to formula II-5,
  • the compound represented by formula III is selected from the group consisting of the following compounds represented by formula III-1 to formula III-5,
  • R 11 means
  • R 12 means C 1-7 alkyl group, C 1-7 alkoxy group, C 2-7 alkenyl group, C 3-7 alkenyloxy group, any of them One or more H atoms are optionally substituted by F atoms;
  • R 21 represents an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, and an alkenyloxy group having 3 to 7 carbon atoms , Where any one or more H atoms are optionally substituted by F atoms;
  • One or more H atoms are optionally substituted by F atoms;
  • R 41 , R 41' representing an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, and those having 3 to 7 carbon atoms Alkenyloxy, in which any one or more H atoms are optionally substituted by F atoms.
  • the negative nematic liquid crystal composition further includes one or more compounds represented by formula IV,
  • R 5 and R 6 each independently represent an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or a carbon number of 3 to The alkenyloxy group of 7, wherein any one or more H atoms are optionally substituted by F atoms;
  • n 0 or 1
  • Z 4 represents a single bond or -C ⁇ C-.
  • the compound represented by formula IV is selected from the group consisting of the following compounds represented by formula IV-1 to formula IV-2,
  • R 51 and R 61 each independently represent an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or a carbon number of 3 to The alkenyloxy group of 7, wherein any one or more H atoms are optionally substituted by F atoms.
  • the negative nematic liquid crystal composition further includes one or more compounds represented by formula V,
  • R 7 and R 8 each independently represent C 1-7 alkyl group, C 1-7 alkoxy group, C 2-7 alkenyl group, C 3-7 alkenyloxy group, any of them
  • One or more H atoms are optionally substituted by F atoms;
  • n 0, 1 or 2;
  • the polymerizable monomer contains one or more compounds represented by formula VI,
  • R 9 and R 10 each independently represent a H atom, a linear alkyl group having 1 to 5 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, or -CF 3 ;
  • L 3 represents F, Cl, an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, and an alkenyl group having 2 to 6 carbon atoms An oxy group or a cycloalkyl group having 3 to 6 carbon atoms;
  • the compound represented by formula VI is selected from the group consisting of the following compounds represented by formula VI-1 to formula VI-4,
  • R 91 and R 101 each independently represent a H atom, -CH 3 or -CF 3 ;
  • L 31 and L 32 each independently represent an F atom, a Cl atom, an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, carbon Alkenyloxy group having 2 to 6 atoms or cycloalkyl group having 3 to 6 carbon atoms;
  • q'and q" each independently represent 0, 1, 2, 3, or 4.
  • the compound represented by formula VI is selected from the group consisting of the following compounds represented by formula VI-1-1 to formula VI-4-2,
  • the UV-curable or heat-curable glue is selected from the group consisting of polyurethane acrylic resin system, epoxy acrylate system, polyester acrylate system, Polyether acrylate system or pure acrylate system.
  • the negative nematic liquid crystal accounts for 50-85% of the total weight of the trans polymer dispersed liquid crystal layer; the UV curable or curable The thermally cured glue accounts for 10-40% of the total weight of the trans-polymer dispersed liquid crystal layer; the liquid crystalline polymerizable monomer accounts for 3-10% of the total weight of the trans-polymer dispersed liquid crystal layer.
  • This embodiment discloses a trans-polymer dispersed liquid crystal display device, which includes a first substrate layer 1, a first conductive layer 2, a first alignment layer 3, and a trans-polymer dispersed liquid crystal material 4 arranged sequentially from top to bottom.
  • the substrate layer is glass and polymer
  • the polymer is polyethylene terephthalate (PET), polyimide Amine (PI) or transparent polyimide (CPI);
  • the conductive layer material can be ITO or a metal electrode material, and the metal electrode material is Ag, Cu or Al.
  • the liquid crystal alignment film is obtained from a liquid crystal alignment treatment agent
  • the liquid crystal alignment treatment agent includes acrylic polymer, methacrylic polymer, novolac resin, polyhydroxystyrene, polyimide precursor, polyimide, polyamide, polyester, cellulose, and One or more polymers in polysiloxane.
  • the polyimide precursor or polyimide is composed of one or more of the following formula 1a-1 and/or formula 1a- A polymer obtained by using the diamine compound shown in 2 and one or more tetracarboxylic dianhydride compounds shown in Formula 1b as part of the raw materials,
  • T 1 represents a single bond or an alkylene group having 1 to 15 carbon atoms, in which one or more non-adjacent -CH 2 -may be optionally replaced by -O-, -CO-, replace;
  • a 1 represents a divalent cyclic group in the group consisting of a benzene ring, a cyclic ring and a heterocyclic ring, or a divalent organic group with 17 to 51 carbon atoms having a steroid skeleton, in which any one or more H Atoms are optionally selected by C1-C3 alkyl groups, C1-C3 alkoxy groups, C1-C3 fluorine-containing alkyl groups, C1-C3 fluorine-containing groups Alkoxy or F atom substitution;
  • a 2 represents a divalent cyclic group in the group consisting of a benzene ring, a cyclic ring and a heterocyclic ring, wherein any one or more H atoms may be optionally substituted by an alkyl group having 1 to 3 carbon atoms, and the number of carbon atoms 1-3 alkoxy groups, fluoroalkyl groups with 1-3 carbon atoms, fluorine-containing alkoxy groups with 1-3 carbon atoms, or F atom substitution;
  • T 2 represents an alkyl group with 1 to 15 carbon atoms, an alkoxy group with 1 to 15 carbon atoms, a fluorinated alkyl group with 1 to 15 carbon atoms, or a fluorinated alkyl group with 1 to 15 carbon atoms Oxy;
  • Y represents a group selected from the group consisting of compounds represented by the following formula a to formula d,
  • a1 and a2 each independently represent 0, 1, 2, 3 or 4;
  • Y 1 and Y 2 each independently represent an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, or an alkynyl group having 2 to 12 carbon atoms;
  • Y 3 represents an alkyl group having 1 to 5 carbon atoms
  • t 1, 2, 3 or 4;
  • a 1 represents selected from the group consisting of the following tetravalent groups:
  • T 1 , T 2 , T 3 , and T 4 each independently represent a H atom, a Cl atom, a methyl group or a benzene ring;
  • T 5 and T 6 each independently represent a H atom or a methyl group.
  • the diamine compound represented by formula 1a-1 is selected from the group consisting of compounds represented by the following formulas 1a-1-1 to 1a-1-11,
  • the tetracarboxylic dianhydride compound is selected from the group consisting of compounds represented by the following formulas 1b-1 to 1b-9,
  • the method of synthesizing the polyimide-based polymer is not particularly limited. It is usually obtained by reacting a diamine component and a tetracarboxylic dianhydride component.
  • a tetracarboxylic dianhydride component selected from the group consisting of tetracarboxylic acids and derivatives thereof is reacted with a diamine component containing one or more diamine compounds to obtain a polyamic acid.
  • a method of polycondensing a tetracarboxylic dianhydride compound and a primary diamine compound or a secondary diamine compound to obtain a polyimide can be used.
  • the following method can be mentioned: stirring the solution obtained by dispersing or dissolving the diamine component in the solvent, directly adding or dispersing the tetracarboxylic dianhydride component Or a method of dissolving in a solvent to add; conversely, a method of adding a diamine component to a solution in which a tetracarboxylic dianhydride component is dispersed or dissolved in a solvent; a method of adding a diamine component and a tetracarboxylic dianhydride component alternately, etc. , You can use any of these methods.
  • a plurality of diamine components or tetracarboxylic dianhydride components when used and reacted, they can be reacted in a pre-mixed state, or they can be reacted sequentially, or they can be a low molecular weight product formed by a separate reaction. The mixing reaction takes place to produce a polymer.
  • the solvent used for a liquid-crystal aligning agent will not be specifically limited if it is a solvent which melt
  • N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone, or ⁇ -butyrolactone is preferably used. They can be used alone or in combination.
  • the solvent content in a liquid-crystal aligning agent can be selected suitably.
  • the solvent content in the liquid crystal aligning agent is preferably 50 to 99.9% by mass.
  • 60 to 99% by mass is preferable, and 65 to 99% by mass is particularly preferable.
  • the trans-polymer dispersed liquid crystal display device disclosed in the present invention can be produced by applying a liquid crystal alignment treatment agent on a substrate and firing it, and then performing alignment processing by brushing treatment, light irradiation, or the like.
  • a liquid crystal alignment treatment agent on a substrate and firing it, and then performing alignment processing by brushing treatment, light irradiation, or the like.
  • the vertical liquid crystal aligning film of the present invention it can be used as a vertical liquid crystal aligning film without performing these alignment treatments.
  • the coating method of the liquid crystal aligning agent is not particularly limited, and industrially there are screen printing, offset printing, flexographic printing, inkjet method, dip coating method, roll coating method, slit coating method, spin coating method, spraying method, etc. It can be appropriately selected according to the type of substrate and the target film thickness of the vertical liquid crystal alignment film.
  • heating means such as a hot plate, a thermal cycle oven, or an IR (infrared) oven, depending on the type of substrate and the solvent used in the liquid crystal aligning agent, to 30 to 300 It is possible to make a vertical liquid crystal alignment film by evaporating the solvent at a temperature of 30 to 250°C, preferably. In particular, when a plastic substrate is used as the substrate, it is preferable to process the substrate at a temperature of 30 to 150°C.
  • the thickness of the vertical liquid crystal alignment film after firing is too thick, it is disadvantageous in terms of power consumption of the liquid crystal display element, and when the thickness is too thin, the reliability of the element may decrease, so it is preferably 5 to 500 nm. It is more preferably from 10 to 300 nm, and particularly preferably from 10 to 250 nm.
  • a spacer for controlling the electrode gap (also referred to as a gap) during the liquid crystal display period, that is, the thickness of the liquid crystal layer may be introduced.
  • the injection method of a liquid crystal composition is not specifically limited, For example, the following methods are mentioned. That is, when a glass substrate is used as the substrate, the following method can be cited: prepare a pair of substrates on which a vertical liquid crystal alignment film is formed, apply a sealant to all but a part of 4 single-sided substrates, and then align the vertical liquid crystals. The film was pasted on the substrate on the other side so that the surface of the film faces the inside, thereby fabricating an empty cell.
  • the liquid crystal composition was injected under reduced pressure at the site where the sealant was not applied, to obtain a cell in which the liquid crystal composition was injected.
  • the following methods can be cited: prepare a pair of substrates on which a vertical liquid crystal alignment film is formed, and use ODF (one drop filling) method on one side of the substrate, inkjet The liquid crystal composition is dropped by the method and the like, and then the substrate on the other side is pasted to obtain a cell in which the liquid crystal composition is injected.
  • the gap of the liquid crystal display device can be controlled with the aforementioned spacers and the like.
  • this method include a method of introducing a spacer of a target size into a liquid crystal composition as described above, a method of using a substrate having a column spacer of a target size, and the like.
  • the gap can be controlled without introducing spacers.
  • the liquid crystal display device of the present invention can be suitably used for liquid crystal display devices used in transportation equipment such as automobiles, trains, and airplanes and transportation machinery, specifically, dimming windows and rearview mirrors for controlling light transmission and blocking Shutter element used in etc.
  • the preparation methods are conventional methods unless otherwise specified.
  • the raw materials used can be obtained from publicly disclosed commercial channels unless otherwise specified.
  • the percentages are all mass percentages, and the temperature is in degrees Celsius (°C).
  • the liquid crystal compound is also called In order to be a liquid crystal monomer, the liquid crystal composition is also called a liquid crystal medium.
  • the preparation method of the liquid crystal composition is as follows: each liquid crystal monomer is weighed according to a certain ratio and then put into a stainless steel beaker, the stainless steel beaker containing each liquid crystal monomer is placed on a magnetic stirring instrument and heated and melted. After most of the liquid crystal monomer is melted, a magnetic rotor is added to the stainless steel beaker, the mixture is stirred uniformly, and the liquid crystal composition is obtained after cooling to room temperature.
  • the formula of the liquid crystal composition Mix1 is shown in Table 3 below.
  • Liquid crystal alignment treatment agent
  • the diamine compound represented by formula 1a-1 is 1a-1-1
  • the diamine compound represented by formula 1a-2 is Tetracarboxylic dianhydride compounds are 1b-2, 1b-6
  • the feeding ratio is 1:1:1:1
  • the solvent is NMP (N-methyl-2-pyrrolidone), and reacted at 40°C for 8 hours to obtain a certain concentration of poly Imide solution.
  • the PDLC material is vacuum-filled into the empty cell, and the liquid crystal cell is placed under a UV lamp and irradiated for 10 minutes to fully polymerize the polymer to obtain a trans-PDLC device.
  • the contrast ratio of the trans PDLC device prepared in the embodiment of the present invention is 10.4.
  • the formula of the liquid crystal composition Mix2 is shown in Table 4 below.
  • Liquid crystal alignment treatment agent
  • the diamine compound represented by formula 1a-1 is 1a-1-3
  • the diamine compound represented by formula 1a-2 is
  • the tetracarboxylic dianhydride compound is 1b-2
  • the feeding ratio is 10:5:1:4
  • the solvent is NMP (N-methyl-2-pyrrolidone). React at 40°C for 8 hours to obtain a polyimide solution with a certain concentration. .
  • the box-making process is similar to Example 1.
  • the contrast ratio of the trans-PDLC device prepared in the example of the present invention is 10.6.
  • the formula of the liquid crystal composition Mix3 is shown in Table 5 below.
  • Liquid crystal alignment treatment agent
  • the diamine compound represented by formula 1a-1 is 1a-1-10
  • the diamine compound represented by formula 1a-2 is Tetracarboxylic dianhydride compound is 1b-6
  • the feed ratio is 8:5:1:4
  • the solvent is NMP (N-methyl-2-pyrrolidone), and react at 60°C for 8 hours to obtain a certain concentration of polyimide solution .
  • the box-making process is similar to Example 1.
  • the contrast ratio of the trans PDLC device prepared in the embodiment of the present invention is 10.5.
  • the formula of the liquid crystal composition Mix4 is shown in Table 6 below.
  • Liquid crystal alignment treatment agent
  • the diamine compound represented by formula 1a-1 is 1a-1-1
  • the diamine compound represented by formula 1a-2 is Tetracarboxylic dianhydride compounds are 1b-2, 1b-6
  • the feeding ratio is 1:1:1:1
  • the solvent is NMP (N-methyl-2-pyrrolidone), and reacted at 40°C for 8 hours to obtain a certain concentration of poly Imide solution.
  • the box-making process is similar to Example 1.
  • the WGT-S light transmittance/haze tester uses the WGT-S light transmittance/haze tester to test the haze and transmittance.
  • the haze is 8 and the light transmittance is 72; when a voltage of 40V is applied, the haze is 76.
  • the transmittance is 52.
  • the contrast ratio of the trans PDLC device prepared in the embodiment of the present invention is 5.2.
  • trans-PDLC devices prepared in the examples of the present invention can greatly improve the contrast.

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Abstract

本发明公开一种反式聚合物分散液晶材料所述反式聚合物分散液晶材料包含负性向列相液晶组合物、可聚合单体以及可紫外固化或可热固化的胶水,所述负性向列相液晶组合物包含一种或多种式Ⅰ所示化合物,一种或多种式Ⅱ所示化合物以及一种或多种式Ⅲ所示化合物,将该反式聚合物分散液晶材料应用于反式聚合物分散液晶显示器件时,具有较低驱动电压且对比度大的优点。

Description

一种反式聚合物分散液晶显示器件 技术领域
本发明涉及液晶应用技术领域。更具体地,涉及一种反式聚合物分散液晶显示器件。
背景技术
聚合物分散液晶(polymer dispersed liquid crystal,PDLC),是将液晶分子与预聚物混合,经聚合反应发生相分离,形成液晶微滴均匀分散在聚合物三维网络中,最终形成具有光电响应特性的材料。对于正向PDLC,当不施加电场时,液晶分子的指向矢不规则分布,其有效折射率neff与聚合物折射率np不匹配,薄膜处于光散射状态,称为雾态;当施加电场时,液晶分子长轴平行于电场排列,其有效折射率与寄何物折射率相匹配,薄膜处于光透射状态,称为透态。如果应用于建筑玻璃或车窗等需要长期保持透态的场景,正向PDLC需要持续给电,造成大量的能源损耗导致过高的使用成本。因此需要设计一种不加电时保持透态,加电时转换为雾态的PDLC,称为反向PDLC。
但是反式PDLC器件通常存在驱动电压高、对比度差的问题。因此人们迫切需要一种驱动电压低且对比度较高的反式PDLC显示器件。
发明内容
本发明的目的在于克服现有技术中存在的反式PDLC器件存在的在较低电压下对比度低的问题。
为达到上述目的,本发明一方面采用下述技术方案:
一种反式聚合物分散液晶材料,所述反式聚合物分散液晶材料包含负性向列相液晶组合物、可聚合单体以及可紫外固化或可热固化的胶水,所述负性向列相液晶组合物包含一种或多种式Ⅰ所示化合物,
Figure PCTCN2021080329-appb-000001
其中,
R 1表示
Figure PCTCN2021080329-appb-000002
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 2表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
n表示0或1,当n为0时,R 1表示
Figure PCTCN2021080329-appb-000003
Z 1表示-C≡C-、-CH 2-、-CH 2CH 2-、-CH 2CF 2-、-COO-、-CH=CH-、-CF=CF-或-CH 2O-;
L 1、L 2各自独立地表示H、Cl、F;
一种或多种式Ⅱ所示化合物,以及一种或多种式Ⅲ所示化合物,
Figure PCTCN2021080329-appb-000004
其中,
R 3、R 3'各自独立地表示
Figure PCTCN2021080329-appb-000005
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 4、R 4'各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
Z 2、Z 3、Z 2'、Z 3'各自独立地表示-C≡C-、-CH 2-、-CH 2CH 2-、-CH 2CF 2-、-COO-、-CH=CH-、-CF=CF-、-CH 2O-或单键,且Z 2、Z 3中至少一个表示-C≡C-。
进一步地,所述负性向列相液晶组合物还包含一种或多种式Ⅳ所示化合物,
Figure PCTCN2021080329-appb-000006
其中,
R 5、R 6各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基或碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
m表示0或1;
Z 4表示单键或-C≡C-。
进一步地,所述负性向列相液晶组合物还包含一种或多种式Ⅴ所示化合物,
Figure PCTCN2021080329-appb-000007
其中,
R 7、R 8各自独立地表示
Figure PCTCN2021080329-appb-000008
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
n表示0、1或2;
Figure PCTCN2021080329-appb-000009
表示
Figure PCTCN2021080329-appb-000010
Figure PCTCN2021080329-appb-000011
进一步地,所述可聚合单体包含一种或多种式Ⅵ所示化合物,
Figure PCTCN2021080329-appb-000012
其中,
R 9、R 10各自独立地表示H原子、碳原子数为1~5的直链烷基、碳原子数为3~6的环烷基或-CF 3
Sp 1、Sp 2各自独立地表示单键、碳原子数为1~6的直链烷基,其中任意一个或多个-CH 2-任选被-O-、-COO-或-C=C-取代;
L 3表示F、Cl、碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~6链烯基、碳原子数为2~6链烯氧基或碳原子数为3~6的环烷基;
p表示1、2、3、4或5;q表示0、1、2、3或4。
进一步地,所述式Ⅰ所示化合物选自下述式Ⅰ-1至式Ⅰ-4所示化合物组成的组,
Figure PCTCN2021080329-appb-000013
所述式Ⅱ所示化合物选自下述式Ⅱ-1至式Ⅱ-5所示化合物组成的组,
Figure PCTCN2021080329-appb-000014
Figure PCTCN2021080329-appb-000015
以及所述式Ⅲ所示化合物选自下述式Ⅲ-1至式Ⅲ-5所示化合物组成的组,
Figure PCTCN2021080329-appb-000016
其中,
R 11表示
Figure PCTCN2021080329-appb-000017
R 12表示
Figure PCTCN2021080329-appb-000018
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 21表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 31、R 31'表示
Figure PCTCN2021080329-appb-000019
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 41、R 41'表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
进一步地,所述式Ⅳ所示化合物选自下述式Ⅳ-1至式Ⅳ-2所示化合物组成的组,
Figure PCTCN2021080329-appb-000020
其中,
R 51、R 61各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基或碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代。
进一步地,所述式Ⅵ所示化合物选自下述式Ⅵ-1至式Ⅵ-4所示化合物组成的组,
Figure PCTCN2021080329-appb-000021
其中,
R 91、R 101各自独立地表示H原子、-CH 3或-CF 3
Sp 11、Sp 21各自独立地表示碳原子数为1~6的直链烷基,其中任意一个或多个-CH 2-任选被-O-、-COO-或-C=C-取代;
L 31、L 32各自独立地表示F原子、Cl原子、碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~6链烯基、碳原子数为2~6链烯氧基或碳原子数为3~6的环烷基;
q'、q”各自独立地表示0、1、2、3或4。
进一步地,所述负性向列相液晶组合物占所述反式聚合物分散液晶材料总重量的50~85%;所述可紫外固化或可热固化的胶水占所述反式聚合物分散液晶材料总重量的10~40%;所述可聚合单体占所述反式聚合物分散液晶材料总重量的3~10%。
本发明的又一个方面提供一种反式聚合物分散液晶显示器件,包括由上至下依次设置的第一基板层、第一导电层、第一取向层、如上第一方面所述的反式聚合物分散液晶材料、第二取向层、第二导电层和第二基板层。
进一步地,所述第一基板层、第二基板层中至少一个具有使液晶垂直取向的液晶取向膜,所述液晶取向膜是由液晶取向处理剂得到的,所述液晶取向处理剂包含丙烯酸类聚合物、甲基丙烯酸类聚合物、酚醛清漆树脂、聚羟基苯乙烯、聚酰亚胺前体、聚酰亚胺、聚酰胺、聚酯、纤维素和聚硅氧烷中的一种或多种聚合物。
进一步地,所述聚酰亚胺前体或聚酰亚胺是由下述一种或多种式1a-1和/或式1a-2所示的二胺化合物和一种或多种式1b所示的四羧酸二酐化合物用于原料的一部分而得到的聚合物,
Figure PCTCN2021080329-appb-000022
其中,
T 1表示单键或碳原子数为1~15的亚烷基,其中一个或多个不相邻的-CH 2-任选被-O-、-CO-、
Figure PCTCN2021080329-appb-000023
取代;
A 1表示由苯环、环基环和杂环组成的组中的2价环状基团或者具有类固醇骨架的碳原子数为17~51的2价有机基团,其中任意一个或多个H原子任选被碳原子数为1~3的烷基、碳原子数为1~3的烷氧基、碳原子数为1~3的含氟烷基、碳原子数为1~3的含氟烷氧基或F原子取代;
A 2表示由苯环、环基环和杂环组成的组中的2价环状基团,其中任意一个或多个H原子任选被碳原子数为1~3的烷基、碳原子数为1~3的烷氧基、碳原子数为1~3的含氟烷基、碳原子数为1~3的含氟烷氧基或F原子取代;
T 2表示碳原子数为1~15的烷基、碳原子数为1~15的烷氧基、碳原子数为1~15的含氟烷基或碳原子数为1~15的含氟烷氧基;
r表示0、1、2、3或4;s表示1、2、3或4;
Y表示选自下述式a至式d所示化合物组成的组,
Figure PCTCN2021080329-appb-000024
其中,
a1、a2各自独立地表示0、1、2、3或4;
Y 1、Y 2各自独立地表示碳原子数为1~12的烷基、碳原子数为2~12的烯基或碳原子数为2~12的炔基;
Y 3表示碳原子数为1~5的烷基;
t表示1、2、3或4;
Figure PCTCN2021080329-appb-000025
其中,
A 1表示选自下列四价基团组成的组:
Figure PCTCN2021080329-appb-000026
T 1、T 2、T 3、T 4各自独立地表示H原子、Cl原子、甲基或苯环;
T 5、T 6各自独立地表示H原子或甲基。
本发明的有益效果如下:
本发明提供一种反式聚合物分散液晶材料,包含其的反式聚合物分散液晶显示器件,与现有技术相比,在较低的驱动电压下具有对比度高的优点,显著提升产品品质。
附图说明
下面结合附图对本发明的具体实施方式作进一步详细的说明。
图1示出反式PDLC器件的结构示意图;
附图标记说明,1:第一基板层;2:第一导电层;3:第一取向层;4:PDLC层;5:第二取向层;6:第二导电层;7:第二基板层。
具体实施方式
为了更清楚地说明本发明,下面结合优选实施例和附图对本发明做进一步的说明。附图中相似的部件以相同的附图标记进行表示。本领域技术人员应当理解,下面所具体描述的内容是说明性的而非限制性的,不应以此限制本发明的保护范围。
本实施方式公开了一种反式聚合物分散液晶材料,所述反式聚合物分散液晶材料包含负性向列相液晶组合物、可聚合单体以及可紫外固化或可热固化的胶水,所述负性向列相液晶组合物包含一种或多种式Ⅰ所示化合物,
Figure PCTCN2021080329-appb-000027
其中,
R 1表示
Figure PCTCN2021080329-appb-000028
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 2表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
n表示0或1,当n为0时,R 1表示
Figure PCTCN2021080329-appb-000029
Z 1表示-C≡C-、-CH 2-、-CH 2CH 2-、-CH 2CF 2-、-COO-、-CH=CH-、-CF=CF-或-CH 2O-;
L 1、L 2各自独立地表示H、Cl、F;
一种或多种式Ⅱ所示化合物,以及一种或多种式Ⅲ所示化合物,
Figure PCTCN2021080329-appb-000030
其中,
R 3、R 3'各自独立地表示
Figure PCTCN2021080329-appb-000031
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 4、R 4'各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
Z 2、Z 3、Z 2'、Z 3'各自独立地表示-C≡C-、-CH 2-、-CH 2CH 2-、-CH 2CF 2-、-COO-、-CH=CH-、-CF=CF-、-CH 2O-或单键,且Z 2、Z 3中至少一个表示-C≡C-。
本实施方式公开的负性向列相液晶组合物中,优选地,所述式Ⅰ所示化合物选自下述式Ⅰ-1至式Ⅰ-4所示化合物组成的组,
Figure PCTCN2021080329-appb-000032
本实施方式公开的负性向列相液晶组合物中,优选地,所述式Ⅱ所示化合物选自下述式Ⅱ-1至式Ⅱ-5所示化合物组成的组,
Figure PCTCN2021080329-appb-000033
本实施方式公开的负性向列相液晶组合物中,优选地,所述式Ⅲ所示化合物选自下述式Ⅲ-1至式Ⅲ-5所示化合物组成的组,
Figure PCTCN2021080329-appb-000034
其中,
R 11表示
Figure PCTCN2021080329-appb-000035
R 12表示
Figure PCTCN2021080329-appb-000036
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 21表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯 基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 31、R 31'表示
Figure PCTCN2021080329-appb-000037
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
R 41、R 41'表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代。
本实施方式公开的反式聚合物分散液晶材料中,可选地,上述负性向列相液晶组合物还包含一种或多种式Ⅳ所示化合物,
Figure PCTCN2021080329-appb-000038
其中,
R 5、R 6各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基或碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
m表示0或1;
Z 4表示单键或-C≡C-。
本实施方式公开的负性向列相液晶组合物中,优选地,所述式Ⅳ所示化合物选自下述式Ⅳ-1至式Ⅳ-2所示化合物组成的组,
Figure PCTCN2021080329-appb-000039
其中,
R 51、R 61各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基或碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代。
本实施方式公开的反式聚合物分散液晶材料中,可选地,所述负性向列相液晶组合物还包含一种或多种式Ⅴ所示化合物,
Figure PCTCN2021080329-appb-000040
其中,
R 7、R 8各自独立地表示
Figure PCTCN2021080329-appb-000041
碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
n表示0、1或2;
Figure PCTCN2021080329-appb-000042
表示
Figure PCTCN2021080329-appb-000043
Figure PCTCN2021080329-appb-000044
本发明公开的反式聚合物分散液晶材料中,优选地,所述可聚合单体包含一种或多种式Ⅵ所示化合物,
Figure PCTCN2021080329-appb-000045
其中,
R 9、R 10各自独立地表示H原子、碳原子数为1~5的直链烷基、碳原子数为3~6的环烷基或-CF 3
Sp 1、Sp 2各自独立地表示单键、碳原子数为1~6的直链烷基,其中任意一个或多个-CH 2-任选被-O-、-COO-或-C=C-取代;
L 3表示F、Cl、碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~6链烯基、碳原子数为2~6链烯氧基或碳原子数为3~6的环烷基;
p表示1、2、3、4或5;q表示0、1、2、3或4;
本发明公开的可聚合单体中,更优选地,所述式Ⅵ所示化合物选自下述式Ⅵ-1至式Ⅵ-4所示化合物组成的组,
Figure PCTCN2021080329-appb-000046
其中,
R 91、R 101各自独立地表示H原子、-CH 3或-CF 3
Sp 11、Sp 21各自独立地表示碳原子数为1~6的直链烷基,其中任意一个或多个-CH 2-任选被-O-、-COO-或-C=C-取代;
L 31、L 32各自独立地表示F原子、Cl原子、碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~6链烯基、碳原子数为2~6链烯氧基或碳原子数为3~6的环烷基;
q'、q”各自独立地表示0、1、2、3或4。
本实施方式公开的可聚合单体中,最优选地,所述式Ⅵ所示化合物选自下述式Ⅵ-1-1至式Ⅵ-4-2所示化合物组成的组,
Figure PCTCN2021080329-appb-000047
Figure PCTCN2021080329-appb-000048
本实施方式公开的反式聚合物分散液晶材料中,可选地,所述可紫外固化或可热固化的胶水选自选自聚氨酯丙烯酸树脂体系、环氧丙烯酸酯体系、聚酯丙烯酸酯体系、聚醚丙烯酸酯体系或纯丙烯酸酯体系。
本实施方式公开的反式聚合物分散液晶材料中,可选地,所述负性向列相液晶占所述 反式聚合物分散液晶层总重量的50~85%;所述可紫外固化或可热固化的胶水占所述反式聚合物分散液晶层总重量的10~40%;所述液晶性可聚合单体占所述反式聚合物分散液晶层总重量的3~10%。
本实施方式公开了一种反式聚合物分散液晶显示器件,包括由上至下依次设置的第一基板层1、第一导电层2、第一取向层3、反式聚合物分散液晶材料4、第二取向层5、第二导电层6、第二基板层7,如图1所示,其中所述反式聚合物分散液晶材料如上文所述。
本实施方式公开的反式聚合物分散液晶显示器件中,可选地,所述基板层为玻璃及聚合物,所述聚合物为聚对苯二甲酸乙二醇酯(PET)、聚酰亚胺(PI)或透明聚酰亚胺(CPI);所述导电层材料可以是ITO或金属电极材料,所述金属电极材料为Ag、Cu或Al。
本实施方式公开的反式聚合物分散液晶显示器件中,所述第一基板、第二基板中至少一个具有使液晶垂直取向的液晶取向膜,所述液晶取向膜是由液晶取向处理剂得到的,所述液晶取向处理剂包含丙烯酸类聚合物、甲基丙烯酸类聚合物、酚醛清漆树脂、聚羟基苯乙烯、聚酰亚胺前体、聚酰亚胺、聚酰胺、聚酯、纤维素和聚硅氧烷中的一种或多种聚合物。
本实施方式公开的反式聚合物分散液晶显示器件中,优选地,所述聚酰亚胺前体或聚酰亚胺是由下述一种或多种式1a-1和/或式1a-2所示的二胺化合物和一种或多种式1b所示的四羧酸二酐化合物用于原料的一部分而得到的聚合物,
Figure PCTCN2021080329-appb-000049
其中,
T 1表示单键或碳原子数为1~15的亚烷基,其中一个或多个不相邻的-CH 2-任选被-O-、-CO-、
Figure PCTCN2021080329-appb-000050
取代;
A 1表示由苯环、环基环和杂环组成的组中的2价环状基团或者具有类固醇骨架的碳原子数为17~51的2价有机基团,其中任意一个或多个H原子任选被碳原子数为1~3的烷基、碳原子数为1~3的烷氧基、碳原子数为1~3的含氟烷基、碳原子数为1~3的含氟烷氧基或F原子取代;
A 2表示由苯环、环基环和杂环组成的组中的2价环状基团,其中任意一个或多个H原子任选被碳原子数为1~3的烷基、碳原子数为1~3的烷氧基、碳原子数为1~3的含氟烷基、碳原子数为1~3的含氟烷氧基或F原子取代;
T 2表示碳原子数为1~15的烷基、碳原子数为1~15的烷氧基、碳原子数为1~15的含氟烷基或碳原子数为1~15的含氟烷氧基;
r表示0、1、2、3或4;s表示1、2、3或4;
Y表示选自下述式a至式d所示化合物组成的组,
Figure PCTCN2021080329-appb-000051
其中,
a1、a2各自独立地表示0、1、2、3或4;
Y 1、Y 2各自独立地表示碳原子数为1~12的烷基、碳原子数为2~12的烯基或碳原子数为2~12的炔基;
Y 3表示碳原子数为1~5的烷基;
t表示1、2、3或4;
Figure PCTCN2021080329-appb-000052
其中,
A 1表示选自下列四价基团组成的组:
Figure PCTCN2021080329-appb-000053
T 1、T 2、T 3、T 4各自独立地表示H原子、Cl原子、甲基或苯环;
T 5、T 6各自独立地表示H原子或甲基。
本发明公开的的反式聚合物分散液晶显示器件中,优选地,式1a-1所示二胺化合物选自下述式1a-1-1至1a-1-11所示化合物组成的组,
Figure PCTCN2021080329-appb-000054
Figure PCTCN2021080329-appb-000055
本实施方式公开的的反式聚合物分散液晶显示器件中,优选地,四羧酸二酐化合物选自下述式1b-1至1b-9所示化合物组成的组,
Figure PCTCN2021080329-appb-000056
Figure PCTCN2021080329-appb-000057
合成聚酰亚胺系聚合物的方法没有特别限定。通常使二胺成分与四羧酸二酐成分反应而得到。一般而言,使选自由四羧酸及其衍生物组成的组中的至少1种四羧酸二酐成分与包含1种或多种二胺化合物的二胺成分反应而得到聚酰胺酸。具体而言,可以使用:使四羧酸二酐化合物与伯二胺化合物或仲二胺化合物缩聚而得到聚酰亚胺的方法。
使二胺化合物与四羧酸二酐化合物在溶剂中反应时,可列举出如下方法:搅拌使二胺成分分散或溶解于溶剂而成的溶液,直接添加四羧酸二酐成分或者使其分散或溶解于溶剂来添加的方法;反之,向使四羧酸二酐成分分散或溶解于溶剂的溶液中添加二胺成分的方法;交替地添加二胺成分和四羧酸二酐成分的方法等,可以使用这些之中的任一方法。另外,二胺成分或四羧酸二酐成分分别使用多种并使其反应时,可以在预先混合了的状态下发生反应,也可以分别依次反应,还可以是单独反应而成的低分子量体发生混合反应而制成聚合物。
液晶取向处理剂中使用的溶剂只要是溶解特定聚合物的溶剂,就没有特别限定。例如为N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、N-甲基-2-吡咯烷酮、N-乙基-2-吡咯烷酮、二甲基亚砜、γ-丁内酯、1,3-二甲基-咪唑啉酮、甲乙酮、环己酮、环戊酮或4-羟基-4-甲基-2- 戊酮等。其中,优选使用N-甲基-2-吡咯烷酮、N-乙基-2-吡咯烷酮或γ-丁内酯。它们可以单独使用,也可以混合使用。
从液晶取向处理剂的涂布方法、获得目标膜厚的观点出发,液晶取向处理剂中的溶剂含量可以适当选择。其中,从利用涂布而形成均匀的垂直液晶取向膜这一观点出发,液晶取向处理剂中的溶剂含量优选为50~99.9质量%。其中,优选为60~99质量%、特别优选为65~99质量%。
本发明公开的的反式聚合物分散液晶显示器件,其制作方法可列举出:将液晶取向处理剂涂布在基板上并烧成后,通过刷磨处理、光照射等进行取向处理而得到。其中,在本发明的垂直液晶取向膜的情况下,不进行这些取向处理也能够用作垂直液晶取向膜。
液晶取向处理剂的涂布方法没有特别限定,工业上有丝网印刷、胶版印刷、柔性印刷、喷墨法、浸涂法、辊涂法、狭缝涂布法、旋涂法或喷涂法等,可根据基板的种类、垂直液晶取向膜的目标膜厚来适当选择。
将液晶取向处理剂涂布在基板上后,利用热板、热循环型烘箱或IR(红外线)型烘箱等的加热手段,根据基板的种类、液晶取向处理剂中使用的溶剂,以30~300℃、优选以30~250℃的温度使溶剂蒸发,从而能够制成垂直液晶取向膜。尤其是,基板使用塑料基板时,优选以30~150℃的温度进行处理。
烧成后的垂直液晶取向膜的厚度过厚时,在液晶表示元件的耗电方面是不利的,厚度过薄时,元件的可靠性有时会降低,因此优选为5~500nm。更优选为10~300nm,特别优选为10~250nm。
本发明所使用的液晶组合物之中也可以导入用于控制液晶显示期间的电极间隙(也称为间隙。)、即液晶层厚度的间隔物。液晶组合物的注入方法没有特别限定,例如可列举出如下方法。即,基板使用玻璃基板时,可列举出如下方法:准备形成有垂直液晶取向膜的一对基板,将单侧的基板4块除了一部分之外均涂布密封剂,其后,以垂直液晶取向膜的表面朝向内侧的方式粘贴于另一侧的基板,由此制作空单元。并且,从未涂布密封剂的部位减压注入液晶组合物,从而得到注入有液晶组合物的单元。进而,基板使用塑料基板、薄膜时,可列举出如下方法:准备形成有垂直液晶取向膜的一对基板,在单侧的基板上利用ODF(液晶滴下式注入,One Drop Filling)法、喷墨法等滴加液晶组合物,其后粘贴另一侧的基板,从而得到注入有液晶组合物的单元。
液晶显示器件的间隙可以用前述间隔物等控制。该方法可列举出:如上所述地向液晶组合物中导入目标大小的间隔物的方法、使用具有目标大小的柱间隔物的基板的方法等。另外,基板使用塑料、薄膜基板且通过层压进行基板的贴合时,可以不导入间隔物地控制间隙。
本发明中的液晶显示器件可适合地用于汽车、火车和飞机等运输机器和运输机械中使用的液晶显示器件,具体而言,用于控制光的透射和遮断的调光窗、后视镜中使用的光闸元件等。
为了更清楚地说明本发明,下面结合优选实施例和附图对本发明做进一步的说明。附图中相似的部件以相同的附图标记进行表示。本领域技术人员应当理解,下面所具体描述的内容是说明性的而非限制性的,不应以此限制本发明的保护范围。
本发明中,制备方法如无特殊说明则均为常规方法,所用的原料如无特别说明均可从公开的商业途径获得,百分比均是指质量百分比,温度为摄氏度(℃),液晶化合物也称为为液晶单体,液晶组合物也称为液晶介质。
下文“雾度”利用WGT-S透光率/雾度测定仪测试。
液晶组合物的制备方法如下:将各液晶单体按照一定配比称量后放入不锈钢烧杯中,将装有各液晶单体的不锈钢烧杯置于磁力搅拌仪器上加热融化,待不锈钢烧杯中的液晶单体大部份融化后,往不锈钢烧杯中加入磁力转子,将混合物搅拌均匀,冷却到室温后即得液晶组合物。
本公开实施例液晶单体结构用代码表示,液晶环结构、端基、连接基团的代码表示方法见下表1、表2。
表1 环结构的对应代码
Figure PCTCN2021080329-appb-000058
表2:端基与链接基团的对应代码
Figure PCTCN2021080329-appb-000059
Figure PCTCN2021080329-appb-000060
举例:
Figure PCTCN2021080329-appb-000061
其代码为PWY--3-O2;
Figure PCTCN2021080329-appb-000062
其代码为PPWY-3-O2;
Figure PCTCN2021080329-appb-000063
其代码为PGWP-3-2;
Figure PCTCN2021080329-appb-000064
其代码为PPXY-3-O2;
Figure PCTCN2021080329-appb-000065
其代码为PWYWP-3-2;
Figure PCTCN2021080329-appb-000066
其代码为PWGWP-3-2;
Figure PCTCN2021080329-appb-000067
其代码为PWY-Cp-O2;
Figure PCTCN2021080329-appb-000068
其代码为PYWP-Cpr1-O2;
实施例1:
液晶组合物Mix1配方如下表3所示。
表3
类别 液晶单体代码 含量(%)
PPWY-3-O2 10
PGWP-3-O2 15
PWYP-3-O2 10
PWYWP-3-2 5
PWYWP-4-2 5
PWYWP-Cp-3 5
PXYWP-5-3 5
PY-3-O2 15
PWY3-O2 10
PWY4-O3 10
PWY5-O2 10
可聚合单体:
Figure PCTCN2021080329-appb-000069
胶水:
聚氨酯丙烯酸酯;
液晶取向处理剂:
式1a-1所示二胺化合物为1a-1-1,式1a-2所示二胺化合物为
Figure PCTCN2021080329-appb-000070
四羧酸二酐化合物为1b-2、1b-6,投料比例为1:1:1:1,溶剂为NMP(N-甲基-2-吡咯烷酮),40℃反应8h,得到一定浓度的聚酰亚胺溶液。
将Mix1、可聚合单体、胶水按质量比69:8:23在黄光条件下混合均匀,得到反向PDLC材料。
在镀有ITO的玻璃上涂布液晶取向处理剂,烘干后得到液晶取向膜,均匀喷洒直径10um的Spacer控制盒厚,在边框均匀涂布框胶,进行对盒,使用UV照射使框胶固化,制作成空盒。
将PDLC材料真空灌入空盒中,将液晶盒置于UV灯下,照射10min,使聚合物充分聚合,即得反式PDLC器件。
使用WGT-S透光率/雾度测定仪测试雾度及透过率,不加电时,雾度为5,透过率为89;加40V电压时,雾度为86,透过率为58。本发明实施例中制备的反式PDLC器件的对比度为10.4。
实施例2:
液晶组合物Mix2配方如下表4所示。
表4
类别 液晶单体代码 含量(%)
PPWY-Cp-O2 4
PGWP-3-2 10
PWGP-4-2 10
PWGP-Cpr-3 10
PWYP-3-O2 7
PWYP-4-O2 7
PWYP-5-O3 8
PWYWP-3-2 5
PWYWP-5-2 4
PY-3-O2 15
PY-5-O3 10
PWY-4-O3 6
CCP 4
可聚合单体:
Figure PCTCN2021080329-appb-000071
胶水:
聚氨酯丙烯酸酯;
液晶取向处理剂:
式1a-1所示二胺化合物为1a-1-3,式1a-2所示二胺化合物为
Figure PCTCN2021080329-appb-000072
Figure PCTCN2021080329-appb-000073
四羧酸二酐化合物为1b-2,投料比例为10:5:1:4,溶剂为NMP(N-甲基-2-吡咯烷酮),40℃反应8h,得到一定浓度的聚酰亚胺溶液。
将Mix2、可聚合单体、胶水按质量比65:9:26在黄光条件下混合均匀,得到反向PDLC材料。
制盒过程与实施例1类似。
使用WGT-S透光率/雾度测定仪测试雾度及透过率,不加电时,雾度为6,透过率为91;加40V电压时,雾度为88,透过率为67。本发明实施例中制备的反式PDLC器件的 对比度为10.6。
实施例3:
液晶组合物Mix3配方如下表5所示。
表5
类别 液晶单体代码 含量(%)
PWY-Cpr-O3 5
PWY-Cp-O3 5
PPXY-3-O2 10
PGWP-3-O2 8
PGWP-Cp-O2 8
PXGWP-3-2 5
PWYP-3-O2 8
PYWP-3-O2 8
PYWP-4-O3 8
PWYWP-5-2 5
PY-3-O2 12
PY-4-O3 8
PWY-3-O2 10
可聚合单体:
Figure PCTCN2021080329-appb-000074
胶水:
聚氨酯丙烯酸酯;
液晶取向处理剂:
式1a-1所示二胺化合物为1a-1-10,式1a-2所示二胺化合物为
Figure PCTCN2021080329-appb-000075
Figure PCTCN2021080329-appb-000076
四羧酸二酐化合物为1b-6,投料比例为8:5:1:4,溶剂为NMP(N-甲基-2-吡咯烷酮),60℃反应8h,得到一定浓度的聚酰亚胺溶液。
将Mix3、可聚合单体、胶水按质量比70:8:22在黄光条件下混合均匀,得到反向PDLC材料。
制盒过程与实施例1类似。
使用WGT-S透光率/雾度测定仪测试雾度及透过率,不加电时,雾度为7,透过率为 92;加40V电压时,雾度为88,透过率为66。本发明实施例中制备的反式PDLC器件的对比度为10.5。
对比例1
液晶组合物Mix4配方如下表6所示。
表6
类别 液晶单体代码 含量(%)
PWYP-3-O2 12
PWYP-5-O3 9
PWYWP-3-2 5
PWYWP-5-2 10
PY-3-O2 10
PWY-3-O2 9
PWY-4-O3 9
PWY-5-O2 10
CPWY-3-O2 10
CPWY-4-O2 8
CPWY-5-O2 8
可聚合单体:
Figure PCTCN2021080329-appb-000077
胶水:
聚氨酯丙烯酸酯;
液晶取向处理剂:
式1a-1所示二胺化合物为1a-1-1,式1a-2所示二胺化合物为
Figure PCTCN2021080329-appb-000078
四羧酸二酐化合物为1b-2、1b-6,投料比例为1:1:1:1,溶剂为NMP(N-甲基-2-吡咯烷酮),40℃反应8h,得到一定浓度的聚酰亚胺溶液。
将Mix4、可聚合单体、胶水按质量比70:9:21在黄光条件下混合均匀,得到反向PDLC材料。
制盒过程与实施例1类似。
使用WGT-S透光率/雾度测定仪测试雾度及透过率,不加电时,雾度为8,透态透光率为72;加40V电压时,雾态雾度为76,透过率为52。本发明实施例中制备的反式PDLC器件的对比度为5.2。
由实施例与对比例可知,本发明实施例中制备的反式PDLC器件可以大幅度提高对比度。
显然,本发明的上述实施例仅仅是为清楚地说明本发明所作的举例,而并非是对本发明的实施方式的限定,对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动,这里无法对所有的实施方式予以穷举,凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。

Claims (11)

  1. 一种反式聚合物分散液晶材料,其特征在于,所述反式聚合物分散液晶材料包含负性向列相液晶组合物、可聚合单体以及可紫外固化或可热固化的胶水,所述负性向列相液晶组合物包含一种或多种式Ⅰ所示化合物,
    Figure PCTCN2021080329-appb-100001
    其中,
    R 1表示
    Figure PCTCN2021080329-appb-100002
    碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    R 2表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    n表示0或1,当n为0时,R 1表示
    Figure PCTCN2021080329-appb-100003
    Z 1表示-C≡C-、-CH 2-、-CH 2CH 2-、-CH 2CF 2-、-COO-、-CH=CH-、-CF=CF-或-CH 2O-;
    L 1、L 2各自独立地表示H、Cl、F;
    一种或多种式Ⅱ所示化合物,以及一种或多种式Ⅲ所示化合物,
    Figure PCTCN2021080329-appb-100004
    其中,
    R 3、R 3'各自独立地表示
    Figure PCTCN2021080329-appb-100005
    碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    R 4、R 4'各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    Z 2、Z 3、Z 2'、Z 3'各自独立地表示-C≡C-、-CH 2-、-CH 2CH 2-、-CH 2CF 2-、-COO-、-CH=CH-、-CF=CF-、-CH 2O-或单键,且Z 2、Z 3中至少一个表示-C≡C-。
  2. 根据权利要求1所述的反式聚合物分散液晶材料,其特征在于,所述负性向列相液晶组合物还包含一种或多种式Ⅳ所示化合物,
    Figure PCTCN2021080329-appb-100006
    其中,
    R 5、R 6各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基或碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    m表示0或1;
    Z 4表示单键或-C≡C-。
  3. 根据权利要求1或2所述的反式聚合物分散液晶材料,其特征在于,所述负性向列相液晶组合物还包含一种或多种式Ⅴ所示化合物,
    Figure PCTCN2021080329-appb-100007
    其中,
    R 7、R 8各自独立地表示
    Figure PCTCN2021080329-appb-100008
    碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    n表示0、1或2;
    Figure PCTCN2021080329-appb-100009
    表示
    Figure PCTCN2021080329-appb-100010
    Figure PCTCN2021080329-appb-100011
  4. 根据权利要求1所述的反式聚合物分散液晶材料,其特征在于,所述可聚合单体包含一种或多种式Ⅵ所示化合物,
    Figure PCTCN2021080329-appb-100012
    其中,
    R 9、R 10各自独立地表示H原子、碳原子数为1~5的直链烷基、碳原子数为3~6的环烷基或-CF 3
    Sp 1、Sp 2各自独立地表示单键、碳原子数为1~6的直链烷基,其中任意一个或多个-CH 2-任选被-O-、-COO-或-C=C-取代;
    L 3表示F、Cl、碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~6链烯基、碳原子数为2~6链烯氧基或碳原子数为3~6的环烷基;
    p表示1、2、3、4或5;q表示0、1、2、3或4。
  5. 根据权利要求1所述的反式聚合物分散液晶材料,其特征在于,所述式Ⅰ所示化合物选自下述式Ⅰ-1至式Ⅰ-4所示化合物组成的组,
    Figure PCTCN2021080329-appb-100013
    所述式Ⅱ所示化合物选自下述式Ⅱ-1至式Ⅱ-5所示化合物组成的组,
    Figure PCTCN2021080329-appb-100014
    以及所述式Ⅲ所示化合物选自下述式Ⅲ-1至式Ⅲ-5所示化合物组成的组,
    Figure PCTCN2021080329-appb-100015
    Figure PCTCN2021080329-appb-100016
    其中,
    R 11表示
    Figure PCTCN2021080329-appb-100017
    R 12表示
    Figure PCTCN2021080329-appb-100018
    碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    R 21表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    R 31、R 31'表示
    Figure PCTCN2021080329-appb-100019
    碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
    R 41、R 41'表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基、碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代;
  6. 根据权利要求2所述的反式聚合物分散液晶材料,其特征在于,所述式Ⅳ所示化合物选自下述式Ⅳ-1至式Ⅳ-2所示化合物组成的组,
    Figure PCTCN2021080329-appb-100020
    其中,
    R 51、R 61各自独立地表示碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~7的链烯基或碳原子数为3~7的链烯氧基,其中任意一个或多个H原子任选被F原子取代。
  7. 根据权利要求4所述的反式聚合物分散液晶材料,其特征在于,所述式Ⅵ所示化合物选自下述式Ⅵ-1至式Ⅵ-4所示化合物组成的组,
    Figure PCTCN2021080329-appb-100021
    Figure PCTCN2021080329-appb-100022
    其中,
    R 91、R 101各自独立地表示H原子、-CH 3或-CF 3
    Sp 11、Sp 21各自独立地表示碳原子数为1~6的直链烷基,其中任意一个或多个-CH 2-任选被-O-、-COO-或-C=C-取代;
    L 31、L 32各自独立地表示F原子、Cl原子、碳原子数为1~7的烷基、碳原子数为1~7的烷氧基、碳原子数为2~6链烯基、碳原子数为2~6链烯氧基或碳原子数为3~6的环烷基;
    q'、q”各自独立地表示0、1、2、3或4。
  8. 根据权利要求1所述的反式聚合物分散液晶材料,其特征在于,所述负性向列相液晶组合物占所述反式聚合物分散液晶材料总重量的50~85%;所述可紫外固化或可热固化的胶水占所述反式聚合物分散液晶材料总重量的10~40%;所述可聚合单体占所述反式聚合物分散液晶材料总重量的3~10%。
  9. 一种反式聚合物分散液晶显示器件,其特征在于,包括由上至下依次设置的第一基板层、第一导电层、第一取向层、权利要求1~8任一项所述的反式聚合物分散液晶材料、第二取向层、第二导电层和第二基板层。
  10. 根据权利要求9所述的反式聚合物分散液晶显示器件,其特征在于,所述第一基板层、第二基板层中至少一个具有使液晶垂直取向的液晶取向膜,所述液晶取向膜是由液晶取向处理剂得到的,所述液晶取向处理剂包含丙烯酸类聚合物、甲基丙烯酸类聚合物、酚醛清漆树脂、聚羟基苯乙烯、聚酰亚胺前体、聚酰亚胺、聚酰胺、聚酯、纤维素和聚硅氧烷中的一种或多种聚合物。
  11. 根据权利要求10所述的反式聚合物分散液晶显示器件,其特征在于,所述聚酰亚胺前体或聚酰亚胺是由下述一种或多种式1a-1和/或式1a-2所示的二胺化合物和一种或多种式1b所示的四羧酸二酐化合物用于原料的一部分而得到的聚合物,
    Figure PCTCN2021080329-appb-100023
    Figure PCTCN2021080329-appb-100024
    其中,
    T 1表示单键或碳原子数为1~15的亚烷基,其中一个或多个不相邻的-CH 2-任选被-O-、-CO-、
    Figure PCTCN2021080329-appb-100025
    取代;
    A 1表示由苯环、环基环和杂环组成的组中的2价环状基团或者具有类固醇骨架的碳原子数为17~51的2价有机基团,其中任意一个或多个H原子任选被碳原子数为1~3的烷基、碳原子数为1~3的烷氧基、碳原子数为1~3的含氟烷基、碳原子数为1~3的含氟烷氧基或F原子取代;
    A 2表示由苯环、环基环和杂环组成的组中的2价环状基团,其中任意一个或多个H原子任选被碳原子数为1~3的烷基、碳原子数为1~3的烷氧基、碳原子数为1~3的含氟烷基、碳原子数为1~3的含氟烷氧基或F原子取代;
    T 2表示碳原子数为1~15的烷基、碳原子数为1~15的烷氧基、碳原子数为1~15的含氟烷基或碳原子数为1~15的含氟烷氧基;
    r表示0、1、2、3或4;s表示1、2、3或4;
    Y表示选自下述式a至式d所示化合物组成的组,
    Figure PCTCN2021080329-appb-100026
    其中,
    a1、a2各自独立地表示0、1、2、3或4;
    Y 1、Y 2各自独立地表示碳原子数为1~12的烷基、碳原子数为2~12的烯基或碳原子数为2~12的炔基;
    Y 3表示碳原子数为1~5的烷基;
    t表示1、2、3或4;
    Figure PCTCN2021080329-appb-100027
    其中,
    A 1表示选自下列四价基团组成的组:
    Figure PCTCN2021080329-appb-100028
    T 1、T 2、T 3、T 4各自独立地表示H原子、Cl原子、甲基或苯环;
    T 5、T 6各自独立地表示H原子或甲基。
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