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WO2020124801A1 - Cellule à cristaux liquides, procédé de fabrication associé, et composition photopolymérisable - Google Patents

Cellule à cristaux liquides, procédé de fabrication associé, et composition photopolymérisable Download PDF

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Publication number
WO2020124801A1
WO2020124801A1 PCT/CN2019/077597 CN2019077597W WO2020124801A1 WO 2020124801 A1 WO2020124801 A1 WO 2020124801A1 CN 2019077597 W CN2019077597 W CN 2019077597W WO 2020124801 A1 WO2020124801 A1 WO 2020124801A1
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Prior art keywords
polymer
liquid crystal
photoinitiator
crystal cell
wavelength
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Chinese (zh)
Inventor
石钰
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F120/10—Esters
    • C08F120/12—Esters of monohydric alcohols or phenols
    • C08F120/14—Methyl esters, e.g. methyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/02—Coumarine dyes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F122/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
    • C08F122/10—Esters
    • C08F122/1006—Esters of polyhydric alcohols or polyhydric phenols, e.g. ethylene glycol dimethacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/46—Polymerisation initiated by wave energy or particle radiation
    • C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals

Definitions

  • the present application relates to the field of display technology, in particular to a liquid crystal cell, a manufacturing method thereof, and a photopolymerizable composition.
  • polymer monomers to liquid crystals
  • Initiating polymerization of polymer monomers under certain conditions can enable liquid crystal displays to achieve many interesting display modes, such as Polymer Dispersed Liquid Crystal (PDLC).
  • PDLC Polymer Dispersed Liquid Crystal
  • PSVA polymer stable vertical alignment system
  • the polymer stable vertical alignment system is to add polymer monomers and photoinitiators to the liquid crystal
  • polymer monomers and photoinitiators After UV irradiation, polymer bumps are formed, which are used to fix the liquid crystal to form a pre-tilt angle.
  • the liquid crystal polymer barrier (PolymerWall Liquid Crystal) (PWLC) technology adjusts the chemical structure and composition ratio of liquid crystal and polymer monomers so that the polymer monomers can be exposed to collimated ultraviolet light after exposure
  • a polymer barrier wall of appropriate width is formed between the two substrates constituting the liquid crystal display.
  • the position of the polymer barrier wall is related to the area irradiated by the ultraviolet light, and the area irradiated by the ultraviolet light can be controlled by the design of the photomask.
  • the polymer formed by the polymer barrier technology can play an adhesion role between the two substrates constituting the liquid crystal display, and can better play a role in maintaining the cell thickness of the liquid crystal display.
  • the formed polymer barrier can effectively control the flow of liquid crystal, and can also eliminate the phenomenon of uneven brightness display caused by external forces and gravity (Mura).
  • the polymer stable vertical alignment system and liquid crystal polymer barrier wall technology are mainly based on free radical polymerization to form a polymer, that is, the photoinitiator generates free radicals through violet light irradiation, and the formed free radicals initiate the free radicals of the polymer monomer. Reaction to form a polymer. As the chain length of the polymer increases, the polymer and the liquid crystal phase separate to produce a functional structure. At the same time, free radical polymerization is used to form a liquid crystal polymer barrier and polymer protrusion. The formation process of the object retaining wall and the polymer protrusion will interfere with each other.
  • the purpose of the present application is to provide a liquid crystal cell and a method for manufacturing the same.
  • the formation process of the polymer barrier wall and the polymer protrusion of the liquid crystal cell will not interfere with each other.
  • Another object of the present application is to provide a photopolymerizable composition.
  • a method for manufacturing a liquid crystal cell includes the following steps:
  • the liquid crystal cell with the mixture is irradiated with light of the first wavelength to initiate anionic polymerization of the photoinitiator A1, the polymer monomer B1 and the polymer monomer B2 to empty the liquid crystal cell
  • the first polymer is formed on the inner wall of the cavity;
  • the liquid crystal cell having the first polymer is irradiated with light of a second wavelength to initiate radical polymerization of the photoinitiator A2 and the polymer monomer B1 to be on the inner wall of the liquid crystal cell containing cavity Forming a second polymer;
  • the photoinitiator A1 is an anionic photoinitiator
  • the photoinitiator A2 is a radical polymerization photoinitiator
  • the polymer monomer B1 is an acrylate, an acrylate derivative, methacrylate, a At least one of acryl acrylate derivative, epoxy resin and styrene
  • the polymer monomer B2 is a mercapto compound
  • the first polymer and the second polymer are different and are respectively polymer barriers Or one of the polymer bumps.
  • the first wavelength is 400 nm-500 nm
  • the second wavelength is 280 nm-370 nm.
  • the photoinitiator A1 is selected from at least one of the following compounds:
  • R1, R2 each independently represent H, a hydrocarbon group or a substituted hydrocarbon group
  • R3 represents a hydrocarbon group or a substituted hydrocarbon group.
  • the photoinitiator A2 is selected from at least one of the following compounds:
  • the first polymer is a polymer barrier
  • the second polymer is a polymer bump
  • the mercapto compound is selected from at least one of the following compounds:
  • a liquid crystal cell having a receiving cavity and a first polymer and a second polymer disposed on the inner wall of the receiving cavity,
  • the first polymer is injected into the accommodating cavity of the liquid crystal cell by mixing photoinitiator A1, photoinitiator A2, polymer monomer B1 and polymer monomer B2, and irradiating with light of the first wavelength
  • the liquid crystal cell with a mixture is formed by initiating anion polymerization of the photoinitiator A1, the polymer monomer B1 and the polymer monomer B2,
  • the second polymer is formed by irradiating a liquid crystal cell having the first polymer with light of a second wavelength to initiate radical polymerization of the photoinitiator A2 and the polymer monomer B1;
  • the photoinitiator A1 is an anionic photoinitiator
  • the photoinitiator A2 is a radical polymerization photoinitiator
  • the polymer monomer B1 is an acrylate, an acrylate derivative, methacrylate, a At least one of acryl acrylate derivative, epoxy resin and styrene
  • the polymer monomer B2 is a mercapto compound
  • the first polymer and the second polymer are different and are respectively polymer barriers Or one of the polymer bumps.
  • the first wavelength is 400 nm-500 nm
  • the second wavelength is 280 nm-370 nm.
  • the photoinitiator A1 is selected from at least one of the following compounds:
  • R1, R2 each independently represent H, a hydrocarbon group or a substituted hydrocarbon group
  • R3 represents a hydrocarbon group or a substituted hydrocarbon group.
  • the photoinitiator A2 is selected from at least one of the following compounds:
  • the first polymer is a polymer barrier
  • the second polymer is a polymer bump
  • the mercapto compound is selected from at least one of the following compounds:
  • the liquid crystal cell further includes liquid crystal, and the liquid crystal is filled in the accommodating cavity of the liquid crystal cell.
  • a photopolymerizable composition comprising a photoinitiator A1, a photoinitiator A2, a polymer monomer B1 and a polymer monomer B2,
  • the photoinitiator A1, the polymer monomer B1, and the polymer monomer B2 are used to perform anionic polymerization under the irradiation of light of a first wavelength to form a first polymer;
  • the photoinitiator A2 and the polymer monomer B1 are used to perform a radical polymer under the irradiation of light of a second wavelength to form a second polymer;
  • the photoinitiator A1 is an anionic photoinitiator
  • the photoinitiator A2 is a radical polymerization photoinitiator
  • the polymer monomer B1 is an acrylate, an acrylate derivative, methacrylate, a At least one of a acrylate derivative, an epoxy resin, and styrene
  • the polymer monomer B2 is a mercapto compound.
  • the first wavelength is 400 nm-500 nm
  • the second wavelength is 280 nm-370 nm.
  • the photoinitiator A1 is selected from at least one of the following compounds:
  • the R1, R2 each independently represent H, a hydrocarbon group or a substituted hydrocarbon group
  • the R3 represents a hydrocarbon group or a substituted hydrocarbon group.
  • the photoinitiator A2 is selected from at least one of the following compounds:
  • the mercapto compound is selected from at least one of the following compounds:
  • the present application provides a liquid crystal cell, a method for manufacturing the same, and a photopolymerizable composition.
  • the first polymer and the second polymer are formed by anionic polymerization and radical polymerization, respectively.
  • the formation process of the first polymer and the second polymer is not Will interfere with each other.
  • FIG. 1 is a flowchart of a method for manufacturing a liquid crystal cell of the present application
  • FIG. 1 A-2E are schematic process diagrams of the flowchart shown in FIG. 1.
  • the present application provides a photopolymerizable composition.
  • the photopolymerizable composition includes a photoinitiator A1, a photoinitiator A2, a polymer monomer B1, and a polymer monomer B2.
  • the photoinitiator A1, the polymer monomer B1 and the polymer monomer B2 are used to perform anionic polymerization under the irradiation of light of the first wavelength to form a first polymer;
  • the photoinitiator A2 and the polymer monomer B1 are used to perform a radical polymer under the irradiation of light of a second wavelength to form a second polymer;
  • the photoinitiator A1 is an anionic photoinitiator
  • the photoinitiator A2 is a radical polymerization photoinitiator
  • the polymer monomer B1 is an acrylate, acrylate derivative, methacrylate, methacrylate derivative, At least one of epoxy resin and styrene
  • the polymer monomer B2 is a mercapto compound.
  • the light of the first wavelength may be ultraviolet light or visible light. When the light of the first wavelength is visible light, the first wavelength is 400-500 nm, for example, the first wavelength is 410 nm, 430 nm, and 480 nm.
  • the light irradiation time of the first wavelength is 15-60min, for example, the irradiation time is 15min, 30min or 45min;
  • the light irradiation intensity of the first wavelength is 1-50mW/cm 2 , for example the irradiation intensity It is 10mW/cm 2 , 25mW/cm 2 or 45mW/cm 2 .
  • the photoinitiator A1 is selected from at least one of the following compounds:
  • R1, R2 each independently represent H, a hydrocarbon group or a substituted hydrocarbon group
  • R3 represents a hydrocarbon group or a substituted hydrocarbon group.
  • Hydrocarbon groups include, but are not limited to, alkyl groups, cycloalkyl groups, and aryl groups.
  • Substituted hydrocarbon groups include, but are not limited to, halogen atom-substituted hydrocarbon groups, and hetero atom (eg, oxygen, nitrogen, sulfur) substituted hydrocarbon groups.
  • R1 and R2 both represent ethyl, or, R1 represents a hydrogen atom, R2 represents n-hexyl; R3 represents -C[N(CH 3 ) 2 ] 2 .
  • the light of the second wavelength may be ultraviolet light or visible light.
  • the second wavelength is 280-370 nm, for example, the second wavelength is 280 nm, 320 nm, or 360 nm.
  • the irradiation time of the second wavelength light is 5-60min, for example, the irradiation time is 8min, 25min and 40min; the irradiation intensity of the second wavelength light is 0.1-10mW/cm 2 , for example the irradiation intensity of 0.2mW / cm 2, 4mW / cm 2, 8mW / cm 2.
  • the photoinitiator A2 is selected from at least one of the following compounds:
  • the photopolymerizable composition will be described below with reference to specific examples.
  • the composition of the photopolymerizable composition and the conditions for forming the first polymer and the second polymer from the photopolymerizable composition are shown in Table 1.
  • Table 1 Composition of the first example photopolymerizable composition and conditions for forming the first polymer and the second polymer from the photopolymerizable composition
  • the composition of the photopolymerizable composition and the conditions for forming the first polymer and the second polymer from the photopolymerizable composition are shown in Table 2.
  • Table 2 Composition of the second example photopolymerizable composition and conditions for forming the first polymer and the second polymer from the photopolymerizable composition
  • the composition of the photopolymerizable composition and the conditions for forming the first polymer and the second polymer from the photopolymerizable composition are shown in Table 3.
  • Table 3 The composition of the third example photopolymerizable composition and the conditions for forming the first polymer and the second polymer from the photopolymerizable composition
  • the photoinitiator A1, the polymer monomer B1, and the polymer monomer B2 are subjected to anion polymerization under light irradiation of the first wavelength to form a first polymerization Substances, photoinitiator A2 and polymer monomer B1 undergo free radical polymerization under the light of the second wavelength to form a second polymer, the formation mechanism of the first polymer and the second polymer are different, the activity in the formation process The centers are different, and the process of forming the first polymer and the process of forming the second polymer do not interfere with each other, so when the photopolymerizable composition of the present application is used to form two different polymers, the formation of the two polymers The process does not interfere with each other.
  • This application uses the above photopolymerizable composition to form the polymer barrier and polymer bumps of the liquid crystal cell respectively.
  • the polymer barrier is used to control the flow of liquid crystal and also to control the thickness of the liquid crystal cell; Used to fix the liquid crystal in the liquid crystal cell to form a pre-tilt angle. It can be understood that the photopolymerizable composition can also be applied to the manufacture of other polymer functional structures, which is not specifically limited in this application.
  • a method for manufacturing a liquid crystal cell A flowchart of the manufacturing method is shown in FIG. 1.
  • the manufacturing method includes the following steps:
  • Photoinitiator A1 101 is an anionic photoinitiator, also known as a photobase generator, which generates an anion active center under light irradiation of a certain wavelength to initiate an anionic polymerization reaction.
  • the photoinitiator A2 102 is a free radical initiator, which generates free radical active centers to initiate free radical polymerization under the irradiation of light of a certain wavelength.
  • the polymer monomer B1 104 is formed by the addition of a carbon-carbon double bond or the ring-opening addition of an epoxy group to form a polymer.
  • the polymer monomer B1 104 is at least one of acrylate, acrylate derivative, methacrylate, methacrylate derivative, epoxy resin, and styrene.
  • the polymer monomer B2 103 is a mercapto compound, which may be a compound containing one mercapto group or a compound containing multiple mercapto groups.
  • the mixture is injected into the accommodating cavity of the liquid crystal cell to obtain the liquid crystal cell with the mixture.
  • the photoinitiator A1 101, the photoinitiator A2 102, the polymer monomer B1 104 and the polymer monomer B2 103 constituting the mixture are uniformly dispersed in the accommodating cavity in.
  • Methods of injecting the mixture into the liquid crystal cell include, but are not limited to, perfusion method and drop injection method (One Drop Filling, ODF).
  • the liquid crystal cell includes a first substrate 105, a second substrate 106, and a frame sealant connecting the first substrate 105 and the second substrate 106.
  • the inner surface of the first substrate 105, the inner surface of the second substrate 106, and the frame sealant surround the synthesized liquid crystal The accommodating cavity of the box.
  • the light of the first wavelength may be ultraviolet light or visible light. Depending on the wavelength of the irradiated light, different photoinitiators need to be selected to initiate anionic polymerization.
  • the first polymer 107 may be a polymer retaining wall or a polymer bump.
  • the light of the first wavelength is visible light, and the first wavelength is 400 nm-500 nm, for example, the first wavelength is 410 nm, 430 nm, or 480 nm.
  • the first polymer 107 is a polymer barrier formed between the first substrate 105 and the second substrate 106.
  • the photoinitiator A1 101 is selected from at least one of the following compounds:
  • R1, R2 each independently represent H, a hydrocarbon group or a substituted hydrocarbon group
  • R3 represents a hydrocarbon group or a substituted hydrocarbon group.
  • Hydrocarbon groups include, but are not limited to, alkyl groups, cycloalkyl groups, and aryl groups.
  • Substituted hydrocarbon groups include, but are not limited to, halogen atom-substituted hydrocarbon groups, and hetero atom (eg, oxygen, nitrogen, sulfur) substituted hydrocarbon groups.
  • R1 and R2 both represent ethyl, or, R1 represents a hydrogen atom, R2 represents n-hexyl; R3 represents -C[N(CH3) 2 ] 2 .
  • a photomask is placed on one side of the liquid crystal cell, and the photomask is irradiated with light of the first wavelength (400 nm-500 nm) for an irradiation time of 15-60 min and an irradiation intensity of 1-50 mW /cm 2 , the first wavelength of light passing through the gap between the photomasks irradiates the liquid crystal cell to initiate photoinitiator A1 101, polymer monomer B1 104, and polymer monomer B2 103 to perform anionic polymerization on the first substrate 105 and the second Polymer barriers are formed between the substrates 106.
  • the reaction between the polymer monomer B1 104 and the polymer monomer B2 103 belongs to the thiol-Michael addition reaction.
  • the light of the second wavelength may be ultraviolet light or visible light; the second polymer 108 may be a polymer barrier or a polymer bump.
  • the first polymer 107 and the second polymer 108 are different and are respectively one of polymer barriers or polymer bumps, that is, when the first polymer 107 is a polymer barrier, the second polymer 108 is a polymer Bumps; when the first polymer 107 is a polymer bump, the second polymer 108 is a polymer barrier.
  • the second wavelength is 280 nm-370 nm, for example, the second wavelength is 280 nm, 320 nm, or 360 nm.
  • the second polymer 108 is a polymer bump.
  • the photoinitiator A2 is selected from at least one of the following compounds:
  • the liquid crystal cell having the first polymer is irradiated with light of the second wavelength (280 nm-370 nm), the light irradiation time of the second wavelength is 5-60 min, and the light of the second wavelength
  • the light irradiation intensity is 0.1-10 mW/cm 2.
  • the photoinitiator A2 102 and the polymer monomer B1 104 undergo free radical polymerization on the inner walls of the first substrate 105 and the second substrate 106 Form polymer bumps.
  • the present application irradiates the liquid crystal cell with light of the first wavelength to anionically polymerize the photoinitiator A1, polymer monomer B1 and polymer monomer B2 to form a polymer barrier between the two substrates constituting the liquid crystal cell.
  • the two-wavelength light irradiates the liquid crystal cell to radically polymerize the photoinitiator A2 and the polymer monomer B1 to form polymer bumps on the inner walls of the two substrates constituting the liquid crystal cell.
  • the anion active center in the process of forming the first polymer and the free radical active center in the process of forming the second polymer will not interfere with each other, so the process of forming the first polymer and the process of forming the second polymer will not interfere with each other Interference.
  • the second polymer may be formed as a polymer barrier
  • the first polymer may be formed as a polymer bump, that is, only the irradiation order of the light of the first wavelength and the light of the second wavelength need to be adjusted.
  • the present application also provides a liquid crystal cell having a receiving cavity and a first polymer and a second polymer disposed on the inner wall of the receiving cavity,
  • the first polymer is injected into the accommodating cavity of the liquid crystal cell by mixing the photoinitiator A1, the photoinitiator A2, the polymer monomer B1 and the polymer monomer B2, and irradiates the liquid crystal cell with the mixture with light of the first wavelength ,
  • the photoinitiator A1, polymer monomer B1 and polymer monomer B2 are formed by anionic polymerization,
  • the second polymer is formed by irradiating the liquid crystal cell with the first polymer with light of the second wavelength to initiate free radical polymerization of the photoinitiator A2 and the polymer monomer B1;
  • photoinitiator A1 is an anionic photoinitiator
  • photoinitiator A2 is a radical polymerization initiator
  • polymer monomer B1 acrylate, acrylate derivative, methacrylate, methacrylate derivative
  • epoxy At least one of resin and styrene
  • the polymer monomer B2 is a mercapto compound
  • the first polymer and the second polymer are different and are respectively one of a polymer barrier or a polymer bump.
  • the light of the first wavelength may be ultraviolet light or visible light.
  • the light of the second wavelength may be ultraviolet light or visible light.
  • the first wavelength is 400 nm-500 nm
  • the second wavelength is 280 nm-370 nm.
  • the photoinitiator A1 is selected from at least one of the following compounds:
  • R1, R2 each independently represent H, a hydrocarbon group or a substituted hydrocarbon group
  • R3 represents a hydrocarbon group or a substituted hydrocarbon group.
  • Hydrocarbon groups include, but are not limited to, alkyl groups, cycloalkyl groups, and aryl groups.
  • Substituted hydrocarbon groups include, but are not limited to, halogen atom-substituted hydrocarbon groups, and hetero atom (eg, oxygen, nitrogen, sulfur) substituted hydrocarbon groups.
  • R1 and R2 both represent ethyl, or, R1 represents a hydrogen atom, R2 represents n-hexyl; R3 represents -C[N(CH3) 2 ] 2 .
  • the photoinitiator A2 is selected from at least one of the following compounds:
  • the liquid crystal cell further includes liquid crystal (not shown), and the liquid crystal is filled in the accommodating cavity of the liquid crystal cell.
  • the liquid crystal is a vertical alignment liquid crystal (Vertical Alignment Liquid).
  • the first polymer and the second polymer in the liquid crystal cell of this application are formed by anionic polymerization and cationic polymerization, respectively, and the anionic active center in the process of forming the first polymer and the free radical active center in the process of forming the second polymer will not Mutual interference, so the process of forming the first polymer and the process of forming the second polymer will not interfere with each other.

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Abstract

L'invention concerne une cellule à cristaux liquides, un procédé de fabrication associé, et une composition photopolymérisable, un premier polymère et un second polymère étant formés par polymérisation anionique et polymérisation radicalaire libre, les processus de formation du premier polymère et du second polymère n'interfèrent pas l'un avec l'autre.
PCT/CN2019/077597 2018-12-21 2019-03-11 Cellule à cristaux liquides, procédé de fabrication associé, et composition photopolymérisable Ceased WO2020124801A1 (fr)

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CN201811573535.2A CN109651543B (zh) 2018-12-21 2018-12-21 液晶盒及其制造方法、光聚合性组合物

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CN109976020B (zh) * 2019-04-24 2020-08-11 深圳市华星光电半导体显示技术有限公司 柔性液晶显示面板的制备方法
CN111983866A (zh) * 2019-05-24 2020-11-24 京东方科技集团股份有限公司 调光玻璃及其制备方法
CN110806662B (zh) * 2019-10-28 2023-03-17 武汉华星光电技术有限公司 显示面板及其制作方法
US11422411B2 (en) 2020-03-10 2022-08-23 Tcl China Star Optoelectronics Technology Co., Ltd. Liquid crystal material, liquid crystal display panel, and manufacturing method thereof
CN111258122B (zh) * 2020-03-10 2021-11-02 Tcl华星光电技术有限公司 液晶材料、液晶显示面板的制作方法及液晶显示面板
CN117683545A (zh) * 2023-12-07 2024-03-12 西京学院 一种基于光可聚合单体和负性向列型液晶体系的反式电控调光膜及其制备方法

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