CN112592420B - Polarizing material, preparation method thereof, polarizer and display panel - Google Patents

Polarizing material, preparation method thereof, polarizer and display panel Download PDF

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CN112592420B
CN112592420B CN202011458967.6A CN202011458967A CN112592420B CN 112592420 B CN112592420 B CN 112592420B CN 202011458967 A CN202011458967 A CN 202011458967A CN 112592420 B CN112592420 B CN 112592420B
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liquid crystal
polarizing material
polymerizable monomer
polarizer
iodine bond
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CN112592420A (en
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陈梅
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TCL Huaxing Photoelectric Technology Co Ltd
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TCL Huaxing Photoelectric Technology Co Ltd
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    • 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
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    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
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    • C08F2/00—Processes of polymerisation
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3432—Six-membered rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/16—Solid spheres
    • C08K7/18—Solid spheres inorganic
    • C08K7/20—Glass
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/38—Polymers
    • C09K19/3833—Polymers with mesogenic groups in the side chain
    • C09K19/3842—Polyvinyl derivatives
    • C09K19/3852—Poly(meth)acrylate derivatives
    • C09K19/3857—Poly(meth)acrylate derivatives containing at least one asymmetric carbon atom
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
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    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/868—Arrangements for polarized light emission
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2335/00—Characterised by the use of homopolymers or copolymers 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, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Derivatives of such polymers
    • C08J2335/02—Characterised by the use of homopolymers or copolymers of esters

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  • Polarising Elements (AREA)

Abstract

The application discloses a polarizing material, a preparation method thereof, a polarizer and a display panel. The polarizing material comprises an iodine bond liquid crystal, wherein the iodine bond liquid crystal contains iodine molecules, and the orientation of the iodine bond liquid crystal can absorb light vibrating in a specific direction to realize a polarizing function. The orientation of the iodine bond liquid crystal is easy to control, uniaxial stretching treatment is not needed, and upper and lower TAC plates are not needed, so that the polaroid manufactured by adopting the polarizing material can simplify the process and the polaroid film structure, and the manufacturing cost of the display panel is reduced.

Description

Polarizing material, preparation method thereof, polarizer and display panel
Technical Field
The application relates to the technical field of display, in particular to a polarizing material, a preparation method thereof, a polarizer and a display panel.
Background
The main panels in the market are mainly OLED (Organic Light-Emitting Diode) and LCD (Liquid Crystal Display ). Polarizers are an essential part of LCD and OLED displays. The polarizer can absorb light in the direction perpendicular to the polarizing axis and only allows light in the direction of the polarizing axis to pass through. Currently, polarizers mainly comprise both high molecular iodine polyvinyl alcohol type (I-PVA) and dichroic organic dye type. The principle is that the macromolecular matrix is stretched along a single axis direction, so that iodine molecules or dyes are arranged along the stretching direction, and light vibrating along the stretching direction is absorbed by the iodine molecules or the dyes and light vibrating perpendicular to the stretching direction is transmitted.
The functional film layers of the existing polaroid all need to be subjected to stretching treatment on matrix macromolecules, and the stretching process directly determines the polarization degree of the polaroid, so that the process is complex and the requirement is high. On the other hand, in order to maintain the stretched state of the polarizer in the polarizer, prevent the water loss of the polarizer and protect the polarizer from the external environment, two transparent TAC plates, an adhesive material adhered to the display panel, a protective film for preventing the polarizer from being scratched and the like are adhered on the PVA functional layer. Referring to fig. 1, a schematic structure of an I-PVA type polarizer is shown in fig. 1, in which a release film (release protective film) 110, a PSA pressure-sensitive adhesive layer (adhesive layer) 120, a lower TAC layer 130, a PVA polarizing film 140, an upper TAC layer 150, and a surface protective film 160 are sequentially stacked from bottom to top. The polarizer film layer with the structure is complex in structure, and the cost of the TAC plate is high, so that the cost of the whole polarizer is increased.
Disclosure of Invention
The embodiment of the application provides a polarizing material, a preparation method thereof, a polarizer and a display panel, and aims to solve the problems that the existing polarizer needs to be subjected to uniaxial stretching treatment and a TAC plate needs to be used, so that the cost is increased.
To solve the above problems, in a first aspect, the present application provides a polarizing material comprising: the structural general formula of the iodine bond liquid crystal is shown as follows:
the R1 is straight-chain or branched-chain alkyl or alkoxy. The iodine molecules in the iodine bond liquid crystal can absorb light vibrating in a specific direction, so that a polarization function is realized.
Further, in the structural general formula of the iodine bond liquid crystal, R1 is a straight-chain or branched-chain alkyl or alkoxy of C5-C20.
Further, the polarizing material further includes: a liquid crystal ultraviolet polymerizable monomer, a photoinitiator and a spacer.
Further, the mass percentage of the liquid crystal ultraviolet polymerizable monomer is 5-40%, the mass percentage of the iodine bond liquid crystal is 55-94.9%, the mass percentage of the photoinitiator is 0.05-3%, and the mass percentage of the spacer is 0.05-2%.
Further, the iodine bond liquid crystal is nematic liquid crystal, smectic liquid crystal or cholesteric liquid crystal.
Further, the iodine bond liquid crystal is positive liquid crystal or negative liquid crystal.
Further, the polarizing material comprises a polymer, wherein a branched chain of the polymer is the iodine bond liquid crystal, and a main chain of the polymer is one or more high molecular compounds.
Further, the high molecular compound is siloxane or/and acrylic resin.
In a second aspect, the present application provides a method for preparing a polarizing material, the method comprising:
mixing a liquid crystal ultraviolet polymerizable monomer, an iodine bond liquid crystal, a photoinitiator and spacer particles to obtain a mixture;
sandwiching the mixture between two flexible transparent conductive base films by a roll-to-roll processing mode, and rolling to form a film;
subjecting the mixture in the film to an orientation treatment; a kind of electronic device with high-pressure air-conditioning system
Initiating the polymerization of polymerizable monomers in the mixture by ultraviolet light to obtain an oriented high-molecular stable polarizing material;
the structural general formula of the iodine bond liquid crystal is shown as follows:
the R1 is straight-chain or branched-chain alkyl or alkoxy.
Further, in the structural general formula of the iodine bond liquid crystal, R1 is a straight-chain or branched-chain alkyl or alkoxy of C5-C20.
Further, in the mixture, the mass percentage of the liquid crystal ultraviolet polymerizable monomer is 5-40%, the mass percentage of the iodine bond liquid crystal is 55-94.9%, the mass percentage of the photoinitiator is 0.05-3%, and the mass percentage of the spacer particles is 0.05-2%.
Further, the orientation treatment method may employ: one or more of friction orientation, electric field orientation, magnetic field orientation, optical field orientation, stress orientation, and stretching orientation.
Further, the flexible transparent conductive base film is a conductive PET film.
In a third aspect, the present application provides a polarizer, including, in order from bottom to top: and peeling the protective film, the adhesive layer, the functional layer and the surface protective film, wherein the functional layer adopts the polarizing material in the first aspect.
In a fourth aspect, the present application also provides a display panel, including the polarizer of the third aspect.
The beneficial effects are that: the application provides a polarizing material, a preparation method thereof, a polarizer and a display panel, wherein the polarizing material comprises iodine bond liquid crystal, the iodine bond liquid crystal contains iodine molecules, and the orientation of the iodine molecules can absorb light vibrating in a specific direction to realize a polarizing function. The orientation of the iodine bond liquid crystal is easy to control, uniaxial stretching treatment is not needed, and upper and lower TAC plates are not needed, so that the polaroid manufactured by adopting the polarizing material can simplify the process and the polaroid film structure, and the manufacturing cost of the display panel is reduced. According to the preparation method of the polarizing material, under the condition of electrification, ultraviolet liquid crystal and polymerizable monomers are aligned parallel to a substrate, and then ultraviolet light is utilized to initiate polymerization of the polymerizable monomers, so that the aligned stable high-molecular polarizing material is obtained. The method provided by the application is simple to operate, and provides a new idea for preparing a novel polarizing material.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art I-PVA polarizer;
FIG. 2 is a schematic diagram of a polarizing material according to an embodiment of the present application;
FIG. 3 is a schematic diagram of another polarizing material according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an intermediate structure in the process of preparing a polarizing material according to an embodiment of the present application;
FIG. 5 is a schematic diagram of another intermediate structure in the process of preparing a polarizing material according to an embodiment of the present application;
FIG. 6 is a schematic view of a polarizer according to an embodiment of the present application.
Wherein the reference numerals designate:
(110, 210) -peeling the protective film; (120, 220) -an adhesive layer; 130-lower TAC layer; 140-PVA polarizing film; 150-an upper TAC layer; (160, 260) -a surface protective film; 240-polarizing material; (241, 244) -a conductive base film; 242-a liquid crystalline uv polymerizable monomer; 243-iodine bond liquid crystal; 245-high molecular compound.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The existing polaroid film layer has a complex structure, and the cost of the TAC plate is high, so that the cost of the whole polaroid is increased.
Based on the above, the embodiment of the application provides a polarizing material, a preparation method thereof, a polarizer and a display panel, and the polarizing material, the polarizer and the display panel are respectively described in detail below.
Referring to fig. 2 to 6, first, in an embodiment of the present application, a polarizing material is provided, where the polarizing material includes: the iodine bond liquid crystal 243 is an azo pyridine derivative iodine bond compound, and the structural general formula is shown as follows:
the R1 is straight-chain or branched-chain alkyl or alkoxy. The iodine molecules in the iodine-bonded liquid crystal 243 can absorb light vibrating in a specific direction, thereby realizing a polarizing function.
Specifically, in the structural general formula of the iodine bond liquid crystal 243, R1 may be a linear or branched alkyl or alkoxy group of C5 to C20.
According to the polarizing material comprising the iodine bond liquid crystal 243, the iodine bond liquid crystal 243 contains iodine molecules, and the orientation of the iodine bond liquid crystal 243 can absorb light vibrating in a specific direction, so that a polarizing function is realized. The orientation of the iodine bond liquid crystal 243 is easily controlled, a uniaxial stretching process is not required, and upper and lower TAC plates are not required, so that the process can be simplified and the manufacturing cost can be reduced.
In another embodiment of the present application, referring to fig. 2, the polarizing material further includes, in addition to the iodine-bond liquid crystal 243, the following components: a liquid crystalline uv polymerizable monomer 242, a photoinitiator (not shown) and spacer particles (not shown).
The mass percentage of the liquid crystal ultraviolet polymerizable monomer 242 is 5-40%, the mass percentage of the iodine bond liquid crystal 243 is 55-94.9%, the mass percentage of the photoinitiator is 0.05-3%, and the mass percentage of the spacer particles is 0.05-2%.
The ultraviolet polymerizable monomer 242 may be 4-bis (4- (6-propenoxyhexyloxy) benzoyloxy) -2-toluene having the structural formula:
wherein n is 3, 4, 5, 6, 7 or 8.
The photoinitiator can be benzil compounds, benzophenone compounds and the like.
The spacer mainly plays a supporting role in the polarizing material, and materials with a supporting role such as glass beads can be adopted.
In one embodiment, the iodine bond liquid crystal 243 may be a nematic liquid crystal, a smectic liquid crystal, or a cholesteric liquid crystal, or may be a positive liquid crystal or a negative liquid crystal.
In the polarizing material provided in the above embodiment, one or more of rubbing, electric field, magnetic field, optical field, stress and stretching may be adopted to align the iodine-bonded liquid crystals 243 in a regular direction. The liquid crystal uv polymerizable monomer 242 in the polarizing material may provide a network structure, so that the molecules of the iodine bond liquid crystal 243 can maintain stable alignment. Together with the photoinitiator and the spacer particles, an oriented high-molecular stable iodine bond liquid crystal 243 composite film is formed.
Referring to fig. 3, in another embodiment of the present application, unlike the above embodiment, the polarizing material includes a polymer, the branched chain of the polymer is the iodine bond liquid crystal 243, and the main chain of the polymer is one or more polymer compounds 245.
Specifically, the polymer compound 245 may be a siloxane or/and an acrylic resin. It is to be understood that the polymer compound 245 is not limited in the present application, as long as the main chain can be arranged in a network, and the present application is specific to the actual situation.
In the polarizing material provided in the foregoing embodiment, one or more of rubbing, electric field, magnetic field, optical field, stress and stretching may be adopted to enable the iodine bond liquid crystal 243 to be regularly arranged in one direction, and the crosslinked polymer main chain may enable the iodine bond liquid crystal 243 molecules to maintain stable alignment. The above embodiments thus also improve the stability of the polarizing material without requiring a uniaxial stretching treatment.
The embodiment of the application also provides a preparation method of the polarizing material, which comprises the following steps:
s10, mixing a liquid crystal ultraviolet polymerizable monomer 242, an iodine bond liquid crystal 243 and a photoinitiator, and adding spacer particles to obtain a mixture;
s20 referring to fig. 4, the mixture is sandwiched between two flexible transparent conductive base films 241, 244, such as conductive PET film, by roll-to-roll processing, roll-formed;
s30 referring to fig. 5, the mixture in the two flexible transparent conductive base films 241, 244 is subjected to an orientation treatment to obtain an intermediate of the polarizing material as shown in fig. 5;
and S40, initiating the polymerization of the polymerizable monomer 242 in the mixture by utilizing ultraviolet light, and ending the curing to obtain the oriented high-molecular stable iodine bond liquid crystal 243 composite film shown in fig. 2, namely the polarizing material. The cured polarizing material can be taken out of the two flexible transparent conductive base films 241, 244 for standby.
The structural general formula of the iodine bond liquid crystal 243 is as follows:
the R1 is straight-chain or branched-chain alkyl or alkoxy.
Specifically, R1 is a C5-C20 linear or branched alkyl or alkoxy.
Specifically, in the mixture, the mass percentage of the liquid crystal uv-polymerizable monomer 242 is 5-40%, the mass percentage of the iodine bond liquid crystal 243 is 55-94.9%, the mass percentage of the photoinitiator is 0.05-3%, and the mass percentage of the spacer particles is 0.05-2%.
The orientation treatment method can adopt: one or more of friction orientation, electric field orientation, magnetic field orientation, optical field orientation, stress orientation, and stretching orientation.
According to the preparation method of the polarizing material provided by the embodiment, under the condition that the two flexible transparent conductive base films 241 and 244 are electrified, the ultraviolet liquid crystal and the polymerizable monomer 242 are aligned parallel to the substrate, and then the ultraviolet light is utilized to initiate polymerization of the polymerizable monomer, so that the aligned stable high polymer polarizing material is obtained. The method is simple, and provides a new idea for preparing a novel polarized material.
Referring to fig. 6, an embodiment of the present application further provides a polarizer, where the polarizer includes: the protective film 210, the adhesive layer 220, the functional layer 240 and the surface protective film 260 are peeled off, and the functional layer 240 is manufactured by using the polarizing material or the manufacturing method of the polarizing material according to any of the above embodiments.
The polarizer of the present application may be manufactured by attaching the surface protective film 260, the adhesive layer 220, and the peeling protective film 210 to both sides of the functional layer 240, respectively, to obtain the polarizer to be manufactured.
The polarizer made of the polarizing material in the embodiment of the present application only needs to attach the surface protection film 260, the adhesion layer 220 and the peeling protection film 210 on two sides of the functional layer 240, respectively, so as to obtain the polarizer to be prepared. The TAC plate, the PVA material and the like are not needed, so that the process and the polarizer film structure can be simplified, and the manufacturing cost of the display panel is reduced.
The embodiment of the application also provides a display panel which comprises a lower polaroid, a TFT substrate, a liquid crystal layer, a CF substrate and an upper polaroid. The upper and lower polarizers are made of the polarizing materials in the above embodiments.
It should be noted that, in the above display panel embodiment, only the above structure is described, and it should be understood that, in addition to the above structure, the display panel of the embodiment of the present application may further include any other necessary structure, for example, a TFT array substrate, a backlight module, a color filter, etc., which is not limited herein.
By adopting the display panel described in the above embodiments, the process can be saved and the manufacturing cost of the display panel can be reduced.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the portions of one embodiment that are not described in detail in the foregoing embodiments may be referred to in the detailed description of other embodiments, which are not described herein again.
In the implementation, each unit or structure may be implemented as an independent entity, or may be implemented as the same entity or several entities in any combination, and the implementation of each unit or structure may be referred to the foregoing method embodiments and will not be repeated herein.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
The polarizing material, the preparation method thereof, the polarizer and the display panel provided by the embodiment of the application are described in detail, and specific examples are applied to illustrate the principle and the implementation mode of the application, and the description of the above examples is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.

Claims (9)

1. The polarizing material is characterized by comprising a liquid crystal ultraviolet polymerizable monomer and an iodine bond liquid crystal, wherein the liquid crystal ultraviolet polymerizable monomer has a net structure after polymerization;
the structural general formula of the iodine bond liquid crystal is shown as follows:
the R is 1 Is a straight or branched alkyl or alkoxy group.
2. The polarizing material according to claim 1, wherein R 1 Is a C5-C20 linear or branched alkyl or alkoxy group.
3. The polarizing material according to claim 1, further comprising: a photoinitiator and a spacer.
4. A polarizing material according to claim 3, wherein the polarizing material comprises a liquid crystal ultraviolet polymerizable monomer, an iodine bond liquid crystal, a photoinitiator and spacer particles, the liquid crystal ultraviolet polymerizable monomer is 5 to 40% by mass, the iodine bond liquid crystal is 55 to 94.9% by mass, the photoinitiator is 0.05 to 3% by mass, and the spacer particles are 0.05 to 2% by mass.
5. A method for preparing a polarizing material, the method comprising:
mixing a liquid crystal ultraviolet polymerizable monomer, an iodine bond liquid crystal, a photoinitiator and spacer particles to obtain a mixture;
sandwiching the mixture between two flexible transparent conductive base films by a roll-to-roll processing mode, and rolling to form a film;
subjecting the mixture in the film to an orientation treatment; a kind of electronic device with high-pressure air-conditioning system
Initiating the polymerization of the liquid crystal ultraviolet polymerizable monomer in the mixture by ultraviolet light to obtain an oriented high-molecular stable polarizing material, wherein the liquid crystal ultraviolet polymerizable monomer has a net structure after polymerization;
the structural general formula of the iodine bond liquid crystal is shown as follows:
the R is 1 Is a straight or branched alkyl or alkoxy group.
6. The method according to claim 5, wherein the liquid crystalline uv-polymerizable monomer is 5 to 40% by mass, the iodine bond liquid crystal is 55 to 94.9% by mass, the photoinitiator is 0.05 to 3% by mass, and the spacer is 0.05 to 2% by mass.
7. The method for producing a polarizing material according to claim 5, wherein the orientation treatment method employs: one or more of friction orientation, electric field orientation, magnetic field orientation, optical field orientation and stress orientation.
8. A polarizer, wherein the polarizer comprises: a release protective film, an adhesive layer, a functional layer, and a surface protective film, wherein the functional layer is made of the polarizing material according to any one of claims 1 to 4.
9. A display panel comprising the polarizer of claim 8.
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CN115294875A (en) * 2022-08-30 2022-11-04 京东方科技集团股份有限公司 Display device, display module thereof and manufacturing method of display module
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JP2007072203A (en) * 2005-09-07 2007-03-22 Nitto Denko Corp Manufacturing method of polarizer, manufacturing method of polarizing plate, polarizer, polarizing plate, optical film and image display device
CN104031652A (en) * 2014-06-25 2014-09-10 北京大学 Iodine bond liquid crystal with reversible photoinduced phase transition behavior and preparation method thereof

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2007072203A (en) * 2005-09-07 2007-03-22 Nitto Denko Corp Manufacturing method of polarizer, manufacturing method of polarizing plate, polarizer, polarizing plate, optical film and image display device
CN104031652A (en) * 2014-06-25 2014-09-10 北京大学 Iodine bond liquid crystal with reversible photoinduced phase transition behavior and preparation method thereof

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