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CN105511006A - Polaroid, display substrate, liquid crystal display panel and making method thereof - Google Patents

Polaroid, display substrate, liquid crystal display panel and making method thereof Download PDF

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Publication number
CN105511006A
CN105511006A CN201610077903.9A CN201610077903A CN105511006A CN 105511006 A CN105511006 A CN 105511006A CN 201610077903 A CN201610077903 A CN 201610077903A CN 105511006 A CN105511006 A CN 105511006A
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China
Prior art keywords
polaroid
potpourri
preparation
orientation
base plate
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Granted
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CN201610077903.9A
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Chinese (zh)
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CN105511006B (en
Inventor
马新利
林允植
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/30Polarising elements
    • G02B5/3025Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)

Abstract

The invention provides a polaroid, a display substrate, a liquid crystal display panel and a making method thereof and belongs to the technical field of display. The problems of poorer orientation effect, lower light transmittance and lower polarization degree of an existing polaroid can be solved. The making method of the polaroid comprises the steps of orientation layer forming and polarization layer forming. The polarization layer forming step comprises the sub-steps that a polarization layer is coated with a mixture, wherein the mixture includes a material capable of performing orientation under the effect of a magnetic field force; orientation is conducted on the mixture through a uniform magnetic field; the mixture is cured to form a polarization layer. The polaroid made by means of the making method has consistent orientation, the light transmittance and lower polarization degree are improved, and the polaroid has better display effect.

Description

Polaroid, display base plate, display panels and preparation method thereof
Technical field
The invention belongs to display technique field, be specifically related to a kind of polaroid, display base plate, display panels and preparation method thereof.
Background technology
The main flow of existing display device is liquid crystal display (LiquidCrystalDisplay is called for short LCD).LCD adopts liquid crystal molecule to coordinate polaroid to realize the control whether light pass through usually, thus realizes the display of image.
The preparation method of existing polaroid is: first, is coated with oriented layer on the glass substrate; Then, in oriented layer, coating forms the potpourri of polarizing layer, and potpourri carries out orientation along the groove in oriented layer automatically; Finally, curing mixture forms polarizing layer.
Inventor finds that prior art at least exists following problem: the potpourri depth of parallelism of direction of orientation in oriented layer forming polarizing layer is lower, orientation effect is poor, cause the transmittance of the polaroid made and degree of polarization also not high, make the yield of product be in reduced levels.
Visible, design a kind of direction of orientation depth of parallelism higher, orientation effect is better, and the polaroid with higher light transmittance and degree of polarization becomes technical matters urgently to be resolved hurrily at present.
Summary of the invention
The present invention is directed to existing above-mentioned technical matters, a kind of polaroid, display base plate, display panels and preparation method thereof are provided.Above-mentioned display base plate and display panels include above-mentioned polaroid, and this polaroid orientation effect is good, has higher light transmittance and degree of polarization, can significantly improve display quality.
Solve the problems of the technologies described above the preparation method that adopted concrete technical scheme is to provide a kind of polaroid, comprise the step forming oriented layer and polarizing layer, form described polarizing layer to comprise the following steps: application of mixture in described oriented layer, described potpourri comprise can under magnetic field force effect the material of orientation; By uniform magnetic field to described potpourri orientation; Solidify described potpourri, form described polarizing layer.
Preferably, described potpourri comprises dichroic dye, UV reactive liquid crystals, hardening agent and solvent, to the step by potpourri orientation described in uniform magnetic field, comprise: to solenoid link electric forming magnetic field, the described oriented layer being coated with described potpourri is placed in the uniform magnetic field that described solenoid is formed, and the magnetic line of force direction of the described uniform magnetic field keeping the direction of orientation of described oriented layer and described solenoid to be formed is consistent.
Preferably, by uniform magnetic field to before the step of described potpourri orientation, also comprise: first described potpourri is heated to isotropic state, more described potpourri is cooled to normal temperature and keeps described UV reactive liquid crystals to be liquid crystal state.
Preferably, described solenoidal cross sectional shape is any one in square, rectangle, circle, ellipse.
Preferably, described solenoidal length is at least more than the twice of described oriented layer length.
Preferably, the magnitude range of described solenoidal electrical current is 1A ~ 100A.
Preferably, the proportional range of described dichroic dye in described potpourri is 0.5wt% ~ 5wt%; The proportional range of described UV reactive liquid crystals in described potpourri is 90wt% ~ 98wt%; The proportional range of described hardening agent in described potpourri is 1wt% ~ 5wt%.
Preferably, described dichroic dye is anthraquinone dyes or azo dyes; Described UV reactive liquid crystals is LC242 or RM257.
Preferably, described hardening agent is light trigger, and described light trigger adopts trimethylbenzoy-dipheny phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester; Solidify described potpourri, form the step of described polarizing layer, comprising: utilize UV illumination to penetrate described potpourri, make described light trigger solidify described potpourri, form described polarizing layer.
Preferably, described hardening agent is thermal curing agents; Solidify described potpourri, form the step of described polarizing layer, comprising: the mode utilizing heat curing, make described thermal curing agents solidify described potpourri, form described polarizing layer, wherein, the scope of heat curing temperature is 80 DEG C ~ 400 DEG C.
Preferably, described potpourri also comprises the exhausted agent of thermal resistance, and the proportional range of the exhausted agent of described thermal resistance in described potpourri is 0.5wt% ~ 2wt%.
Preferably, described oriented layer adopts polyimide material to be formed, and adopts friction mode to obtain orientation.
Another technical scheme provided by the invention is: a kind of preparation method of display base plate, and described oriented layer and described polarizing layer, on the basis of the preparation method of above-mentioned polaroid, are formed on base plate by the method successively, forms display base plate.
Preferably, described base plate adopts array base plate, and the described display base plate of formation is array base palte; Or described base plate adopts color film base plate, the described display base plate of formation is color membrane substrates.
Another technical scheme provided by the invention is: a kind of preparation method of display panels, comprises the following steps: form array base palte, and the incident side of described array base palte forms lower polaroid; Form color membrane substrates, and the light emission side of described color membrane substrates forms polaroid; By described array base palte and described color membrane substrates to box, and between described array base palte and described color membrane substrates filling liquid crystal; Described lower polaroid and/or described upper polaroid adopt the preparation method of above-mentioned polaroid to be formed.
Another technical scheme provided by the invention is: a kind of polaroid, comprise oriented layer and polarizing layer, described polarizing layer adopts the potpourri comprising dichroic dye, UV reactive liquid crystals, hardening agent and solvent to be formed, wherein, described UV reactive liquid crystals can under magnetic field force effect orientation.
Preferably, the proportional range of described dichroic dye in described potpourri is 0.5wt% ~ 5wt%; The proportional range of described UV reactive liquid crystals in described potpourri is 90wt% ~ 98wt%; The proportional range of described hardening agent in described potpourri is 1wt% ~ 5wt%.
Preferably, described dichroic dye is anthraquinone dyes or azo dyes; Described UV reactive liquid crystals is LC242 or RM257; Described hardening agent is thermal curing agents or light trigger, and wherein, described light trigger adopts trimethylbenzoy-dipheny phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester.
Preferably, described potpourri also comprises the exhausted agent of thermal resistance, and the proportional range of the exhausted agent of described thermal resistance in described potpourri is 0.5wt% ~ 2wt%.
Another technical scheme provided by the invention is: a kind of display base plate, comprises base plate and polaroid, and described base plate is array base plate or color film base plate, and described polaroid is above-mentioned polaroid.
Another technical scheme provided by the invention is: a kind of display panels, comprise the array base palte to box setting and color membrane substrates, and the liquid crystal be filled between described array base palte and described color membrane substrates, the incident side of described array base palte is provided with lower polaroid, the light emission side of described color membrane substrates is provided with polaroid, and described lower polaroid and/or described upper polaroid are above-mentioned polaroid.
Polaroid provided by the invention and preparation method thereof, the potpourri comprising dichroic dye and UV reactive liquid crystals is adopted to form polarizing layer, and make potpourri complete orientation in uniform magnetic field, dichroic dye can obtain consistent direction of orientation with UV reactive liquid crystals in uniform magnetic field, orientation effect is excellent, significantly improve transmittance and the degree of polarization of polaroid, make the yield of product be in higher level.This polaroid is applied in display device, the display quality of display device can be significantly improved.
Display base plate provided by the invention, display panels and preparation method thereof comprise the preparation method of above-mentioned polaroid or polaroid, make display base plate, display panels has all beneficial effects that above-mentioned polaroid brings, make display base plate, display panels has higher display quality.
Accompanying drawing explanation
Fig. 1 is the FB(flow block) of the preparation method of the polaroid of embodiment 1;
Fig. 2 is the schematic diagram forming oriented layer;
Fig. 3 is the schematic diagram that coating forms the potpourri of polarizing layer in oriented layer;
Fig. 4 is the schematic diagram to the potpourri orientation that oriented layer applies;
Fig. 5 is the side view of structure in Fig. 4;
Fig. 6 is the schematic diagram of the potpourri that UV illumination curing oriented layer applies.
Wherein, Reference numeral is:
1, carrier substrate; 2, oriented layer; 3, polarizing layer; 4, solenoid; 5, UV light source.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1:
The present embodiment provides a kind of preparation method of polaroid, utilizes the polaroid orientation effect of this preparation method's gained good, has higher light transmittance and degree of polarization, can significantly improve display quality.
The preparation method of this polaroid, comprises the step forming oriented layer and polarizing layer.Fig. 1 is the FB(flow block) of the preparation method of the polaroid of the present embodiment, and as shown in Figure 1, this preparation method comprises the following steps:
S1: form oriented layer.
Fig. 2 is the schematic diagram forming oriented layer, and as shown in Figure 2, in this step, in conjunction with the preparation technology of existing maturation, carrier substrate 1 forms oriented layer 2, oriented layer 2 adopts polyimide material to be formed, and adopts friction mode to obtain orientation.Concrete preparation process is: first, coating polyimide material on carrier substrate 1, and dries; Secondly, adopt the upper surface of polyimide material on friction pulley friction carrier substrate 1, make the upper surface of material form the consistent elongated channels in direction, namely obtain orientation, thus form oriented layer 2 on carrier substrate 1.
Below for forming the step of polarizing layer on the basis of oriented layer:
S2: application of mixture in oriented layer 2, potpourri comprise can under magnetic field force effect the material of orientation.
Fig. 3 is the schematic diagram that coating forms the potpourri of polarizing layer in oriented layer 2, and as shown in Figure 3, in this step, the potpourri forming polarizing layer 3 comprises dichroic dye, UV (UltraViolet) reactive liquid crystals, hardening agent and solvent.Through test determination, by each constituent by following ratio combination, the polaroid of formation can be made to have good orientation effect and higher degree of polarization and transmittance, that is: dichroic dye proportional range is in the mixture 0.5wt% ~ 5wt% (wt% refers to part by weight); UV reactive liquid crystals proportional range is in the mixture 90wt% ~ 98wt%; Hardening agent proportional range is in the mixture 1wt% ~ 5wt%.In addition, do not need in following process process to prevent potpourri to be heating and curing when solidification, also comprise the exhausted agent of thermal resistance in potpourri, the exhausted agent of thermal resistance proportional range is in the mixture 0.5wt% ~ 2wt%.
Concrete, the dichroic dye in potpourri is preferably anthraquinone dyes or azo dyes; In the market, UV reactive liquid crystals mainly contains RM (ReactiveMesogen) series of Merck company (merck) as RM257 etc.; Also have the Paliocolor series of BASF Aktiengesellschaft (BASF), as: LC242 etc., UV reactive liquid crystals is preferably LC242 or RM257, and the potpourri cost comprising above-mentioned material is lower, obtain easily.In crystal state under UV reactive liquid crystals normal temperature, but be placed in solvent, can liquid state be dissolved as, and liquid crystal molecule be evenly distributed in this liquid state.Here solvent can select the composition of any one or they in cyclopentanone, acetone, 1-Methoxy-2-propyl acetate, toluene, chloroform.Like this, potpourri entirety is also in a liquid state state, follow-up coating and orientation procedure can be applied to easily, and above-mentioned UV reactive liquid crystals can be under the action of a magnetic force, direction along magnetic field force extends orientation, and dichroic dye is mixed between the molecule of UV reactive liquid crystals, carrying out in the process of orientation UV reactive liquid crystals, dichroic dye also just completes orientation.
S3: by uniform magnetic field to potpourri orientation.
In this step, to the potpourri orientation of coating in oriented layer 2, completed by uniform magnetic field.Fig. 4 is the schematic diagram to the potpourri orientation of coating in oriented layer 2, Fig. 5 is the side view of structure in Fig. 4, as shown in Figure 4, Figure 5, detailed process is: the uniform magnetic field formed by the solenoid 4 that the oriented layer 2 being coated with potpourri puts into energising, and keep the direction of orientation of oriented layer 2 consistent with the magnetic line of force direction of the uniform magnetic field that the solenoid 4 of energising is formed, like this, under the effect of the magnetic line of force, the direction of orientation of UV reactive liquid crystals is then consistent with the direction of orientation of oriented layer 2.
Wide-range can be formed and stable uniform magnetic field to make the solenoid 4 of energising, the cross sectional shape of preferred solenoid 4 is any one in square, rectangle, circle, ellipse, be the solenoid 4 of rectangular shape with cross sectional shape in Fig. 4, Fig. 5 be example, the solenoid 4 of energising forms uniform magnetic field therein, in Fig. 4, the magnetic line of force direction of uniform magnetic field is the direction of vertical paper, and the magnetic line of force direction in Fig. 5 in uniform magnetic field as shown by arrows.The oriented layer 2 being coated with potpourri is put into uniform magnetic field, simultaneously, keep the direction of orientation of oriented layer 2 consistent with the magnetic line of force direction of uniform magnetic field, wherein, the direction of orientation of oriented layer 2 is the frictional direction in its manufacturing process, the magnetic line of force direction of uniform magnetic field can be determined according to the energising direction of solenoid 4 and the winding direction of coil, make the direction of orientation of oriented layer 2 consistent with the magnetic line of force direction of uniform magnetic field, the magnetic field force effect that UV reactive liquid crystals then in potpourri will be subject to along magnetic line of force direction, therefore, UV reactive liquid crystals is by the direction along the magnetic line of force, direction of orientation namely along oriented layer 2 extends orientation, simultaneously, dichroic dye in potpourri also will obtain the orientation consistent with UV reactive liquid crystals by being mixed between UV reactive liquid crystals.Therefore, under magnetic field force effect, the potpourri forming polarizing layer also just can obtain the consistent orientation in direction.
In order to ensure that the oriented layer 2 being coated with potpourri can be in uniform magnetic field completely, the length H of preferred solenoid 4 is more than twices of oriented layer length h, to obtain larger uniform magnetic field scope, like this, the oriented layer 2 being coated with potpourri is placed on the centre position of solenoid 4 inside, can ensure to be in completely in uniform magnetic field, avoid being in the nonuniform magnetic fields at solenoid 4 two ends.
In addition, in the magnetic field of the solenoid formation of energising, magnetic induction is: B=μ nI; Wherein, μ is permeability of vacuum (constant); N is coil turn; I is electrical current; The magnetic field force that magnetic induction B is subject to dichroic dye and UV reactive liquid crystals is directly proportional.In theory, larger electric current is applied to solenoid, the magnetic field force that UV reactive liquid crystals is subject to is larger, accordingly, the orientation efficiency of dichroic dye and UV reactive liquid crystals and orientation effect better, but, consider and apply the effect of larger current on the impact of production cost and actual required orientation, be preferably 1A ~ 100A to the magnitude range of solenoidal electrical current, to obtain relatively preferably orientation effect, the increase of production control cost simultaneously, simultaneously, for ensure dichroic dye and UV reactive liquid crystals orientation complete, solenoidal energising duration ranges preferably from 0.5s ~ 60s.
Before carrying out S3 step, in order to ensure that UV reactive liquid crystals is in liquid crystal state completely, to have good mobility, to obtain good orientation in uniform magnetic field, preferably first oriented layer 2 entirety being coated with potpourri is heated, UV reactive liquid crystals in potpourri is heated on its phase transition temperature, makes it to reach isotropic state, then UV reactive liquid crystals is cooled to normal temperature and keeps liquid crystal state.Afterwards, the uniform magnetic field of putting into being coated with potpourri is carried out orientation, orientation efficiency and orientation effect can be improved further.
S4: curing mixture, forms polarizing layer 3.
The present embodiment adopts the mode of UV illumination curing to form polaroid.Accordingly, hardening agent is light trigger, and light trigger adopts trimethylbenzoy-dipheny phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester; Fig. 6 is the schematic diagram of the potpourri of coating in UV illumination curing oriented layer 2, and as shown in Figure 6, curing mixture, is formed in the process of polarizing layer, comprising: potpourri is penetrated in the UV illumination utilizing UV light source 5 to send, and makes light trigger curing mixture, forms polarizing layer 3.Above-mentioned light trigger is in the light-struck situation of UV, and polymerization reaction take place, generates the compound of crosslinking curing, thus make mixture solidified, i.e. the obtained polaroid comprising oriented layer 2 and polarizing layer 3.
In addition, the present embodiment can also adopt the mode of heat curing to form polaroid, meanwhile, in order to ensure the efficiency of heat curing, can not add the exhausted agent of thermal resistance in the potpourri forming polarizing layer.Accordingly, hardening agent is thermal curing agents; Curing mixture, is formed in the process of polarizing layer, comprising: the mode utilizing heat curing, make thermal curing agents curing mixture, and form polarizing layer, wherein, the scope of heat curing temperature is 80 DEG C ~ 400 DEG C.Above-mentioned thermal curing agents in case of heating, generates the compound of crosslinking curing equally, thus makes mixture solidified.
The preparation method of the polaroid that the present embodiment provides, adopt the potpourri comprising dichroic dye and UV reactive liquid crystals to make the polarizing layer in polaroid, and adopt uniform magnetic field to carry out orientation to UV reactive liquid crystals, dichroic dye in potpourri can obtain the orientation consistent with UV reactive liquid crystals by being mixed between UV reactive liquid crystals, transmittance and the degree of polarization of polaroid can be significantly improved, make the yield of product be in higher level.
The present embodiment also provides a kind of polaroid, and this polaroid is the polaroid adopting above-mentioned preparation method to obtain.This polaroid comprises oriented layer and polarizing layer, and wherein, the material of polarizing layer is the potpourri comprising dichroic dye, UV reactive liquid crystals, hardening agent and solvent.
Concrete, dichroic dye proportional range is in the mixture 0.5wt% ~ 5wt%; UV reactive liquid crystals proportional range is in the mixture 90wt% ~ 98wt%; Hardening agent proportional range is in the mixture 1wt% ~ 5wt%.Dichroic dye is anthraquinone dyes or azo dyes; UV reactive liquid crystals is LC242 or RM257; Hardening agent is thermal curing agents or light trigger, and wherein, light trigger adopts trimethylbenzoy-dipheny phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester.
In addition, potpourri can also comprise the exhausted agent of thermal resistance, and the exhausted agent of thermal resistance proportional range is in the mixture 0.5wt% ~ 2wt%, and the exhausted agent of thermal resistance can prevent potpourri from not needing to solidify when solidification in following process process.
The polaroid that the present embodiment provides, by adopting the formation such as dichroic dye and UV reactive liquid crystals, transmittance and the degree of polarization of polaroid can be improved, and the orientation of UV reactive liquid crystals can be completed by uniform magnetic field, dichroic dye in potpourri will be mixed in the orientation that between UV reactive liquid crystals, acquisition is consistent with UV reactive liquid crystals, orientation effect is excellent, improves the yield of product.
Embodiment 2:
The present embodiment provides a kind of preparation method of display base plate, the preparation method of this display base plate, on the basis of the preparation method of polaroid in embodiment 1, oriented layer and polarizing layer is formed in successively on base plate, forms display base plate.
Base plate mentioned here can be array base plate or color film base plate.If employing array base plate, the display base plate of formation is then array base palte; If base plate adopts color film base plate, the display base plate of formation is then color membrane substrates.
The preparation method of above-mentioned array base palte or the preparation method of color membrane substrates include the preparation method of the polaroid in embodiment 1, the polaroid in the array base palte that obtains or color membrane substrates is made to have consistent orientation, and higher transmittance and degree of polarization, accordingly, array base palte or color membrane substrates obtain better display effect.
The present embodiment also provides a kind of display base plate, this display base plate, comprise base plate and polaroid, base plate is array base plate or color film base plate, focus on, polaroid included by this display base plate is the polaroid in embodiment 1, makes this display base plate have all technique effects of polaroid in embodiment 1, has better display effect.
Embodiment 3:
The present embodiment provides a kind of preparation method of display panels, and the preparation method of this display panels, comprises the following steps:
S1: form array base palte, and the incident side of array base palte forms lower polaroid;
S2: form color membrane substrates, and the light emission side of color membrane substrates forms polaroid;
S3: by array base palte and color membrane substrates to box, and between array base palte and color membrane substrates filling liquid crystal;
Wherein, the upper polaroid in the lower polaroid in S1 step and/or S2 step adopts the preparation method of the polaroid in embodiment 1 to be formed.
It is easily understood that, the step forming array base palte in the method and the step not specific sequencing requirement forming color membrane substrates, that is, the sequencing of above-mentioned S1 step and S2 step can be exchanged, the display panels that the present embodiment preparation method can be made to obtain equally has all technique effects of polaroid in embodiment 1, has better display effect.
The present embodiment also provides a kind of display panels, this display panels, comprise the array base palte to box setting and color membrane substrates, and the liquid crystal be filled between array base palte and color membrane substrates, the incident side of array base palte is provided with lower polaroid, the light emission side of color membrane substrates is provided with polaroid, and importantly, lower polaroid and/or upper polaroid are the polaroid in embodiment 1.This display panels has all technique effects of polaroid in embodiment 1, has better display effect.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.

Claims (21)

1. a preparation method for polaroid, comprises the step forming oriented layer and polarizing layer, it is characterized in that, form described polarizing layer and comprise the following steps:
Application of mixture in described oriented layer, described potpourri comprise can under magnetic field force effect the material of orientation;
By uniform magnetic field to described potpourri orientation;
Solidify described potpourri, form described polarizing layer.
2. the preparation method of polaroid according to claim 1, is characterized in that, described potpourri comprises dichroic dye, UV reactive liquid crystals, hardening agent and solvent, described by the step of uniform magnetic field to described potpourri orientation, comprising:
To solenoid link electric forming magnetic field, the described oriented layer being coated with described potpourri is placed in the uniform magnetic field that described solenoid is formed, and the magnetic line of force direction of the described uniform magnetic field keeping the direction of orientation of described oriented layer and described solenoid to be formed is consistent.
3. the preparation method of polaroid according to claim 2, is characterized in that, by uniform magnetic field to the step of described potpourri orientation before, also comprise:
First described potpourri is heated to isotropic state, more described potpourri is cooled to normal temperature and keeps described UV reactive liquid crystals to be liquid crystal state.
4. the preparation method of polaroid according to claim 2, is characterized in that, described solenoidal cross sectional shape is any one in square, rectangle, circle, ellipse.
5. the preparation method of polaroid according to claim 2, is characterized in that, described solenoidal length is at least more than the twice of described oriented layer length.
6. the preparation method of polaroid according to claim 2, is characterized in that, the magnitude range of described solenoidal electrical current is 1A ~ 100A.
7. the preparation method of polaroid according to claim 2, is characterized in that, the proportional range of described dichroic dye in described potpourri is 0.5wt% ~ 5wt%; The proportional range of described UV reactive liquid crystals in described potpourri is 90wt% ~ 98wt%; The proportional range of described hardening agent in described potpourri is 1wt% ~ 5wt%.
8. the preparation method of polaroid according to claim 2, is characterized in that,
Described dichroic dye is anthraquinone dyes or azo dyes;
Described UV reactive liquid crystals is LC242 or RM257.
9. the preparation method of polaroid according to claim 2, is characterized in that, described hardening agent is light trigger, and described light trigger adopts trimethylbenzoy-dipheny phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester;
The described potpourri of described solidification, forms the step of described polarizing layer, comprising:
Utilize UV illumination to penetrate described potpourri, make described light trigger solidify described potpourri, form described polarizing layer.
10. the preparation method of polaroid according to claim 2, is characterized in that, described hardening agent is thermal curing agents; The described potpourri of described solidification, forms the step of described polarizing layer, comprising:
Utilize the mode of heat curing, make described thermal curing agents solidify described potpourri, form described polarizing layer, wherein, the scope of heat curing temperature is 80 DEG C ~ 400 DEG C.
11. according to the preparation method of the arbitrary described polaroid of claim 2 ~ 9, and it is characterized in that, described potpourri also comprises the exhausted agent of thermal resistance, and the proportional range of the exhausted agent of described thermal resistance in described potpourri is 0.5wt% ~ 2wt%.
12. according to the preparation method of the arbitrary described polaroid of claim 1 ~ 10, and it is characterized in that, described oriented layer adopts polyimide material to be formed, and adopts friction mode to obtain orientation.
The preparation method of 13. 1 kinds of display base plates, is characterized in that, on the basis of the preparation method of the arbitrary described polaroid of claim 1 ~ 12, described oriented layer and described polarizing layer is formed in successively on base plate, forms display base plate.
The preparation method of 14. display base plates according to claim 13, is characterized in that, described base plate adopts array base plate, and the described display base plate of formation is array base palte; Or described base plate adopts color film base plate, the described display base plate of formation is color membrane substrates.
The preparation method of 15. 1 kinds of display panels, comprises the following steps:
Form array base palte, and the incident side of described array base palte forms lower polaroid;
Form color membrane substrates, and the light emission side of described color membrane substrates forms polaroid;
By described array base palte and described color membrane substrates to box, and between described array base palte and described color membrane substrates filling liquid crystal;
It is characterized in that,
Described lower polaroid and/or described upper polaroid adopt the preparation method of the arbitrary described polaroid of claim 1 ~ 12 to be formed.
16. 1 kinds of polaroids, comprise oriented layer and polarizing layer, it is characterized in that, described polarizing layer adopts the potpourri comprising dichroic dye, UV reactive liquid crystals, hardening agent and solvent to be formed, wherein, described UV reactive liquid crystals can under magnetic field force effect orientation.
17. polaroids according to claim 16, is characterized in that,
The proportional range of described dichroic dye in described potpourri is 0.5wt% ~ 5wt%;
The proportional range of described UV reactive liquid crystals in described potpourri is 90wt% ~ 98wt%;
The proportional range of described hardening agent in described potpourri is 1wt% ~ 5wt%.
18. polaroids according to claim 16, is characterized in that,
Described dichroic dye is anthraquinone dyes or azo dyes;
Described UV reactive liquid crystals is LC242 or RM257;
Described hardening agent is thermal curing agents or light trigger, and wherein, described light trigger adopts trimethylbenzoy-dipheny phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester.
19. polaroids according to claim 16, is characterized in that, described potpourri also comprises the exhausted agent of thermal resistance, and the proportional range of the exhausted agent of described thermal resistance in described potpourri is 0.5wt% ~ 2wt%.
20. 1 kinds of display base plates, comprise base plate and polaroid, and described base plate is array base plate or color film base plate, it is characterized in that, described polaroid is the arbitrary described polaroid of claim 16 ~ 19.
21. 1 kinds of display panels, comprise the array base palte to box setting and color membrane substrates, and the liquid crystal be filled between described array base palte and described color membrane substrates, the incident side of described array base palte is provided with lower polaroid, the light emission side of described color membrane substrates is provided with polaroid, it is characterized in that, described lower polaroid and/or described upper polaroid are the arbitrary described polaroid of claim 16 ~ 19.
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