CN105511006B - Polaroid, display base plate, liquid crystal display panel and preparation method thereof - Google Patents
Polaroid, display base plate, liquid crystal display panel and preparation method thereof Download PDFInfo
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- CN105511006B CN105511006B CN201610077903.9A CN201610077903A CN105511006B CN 105511006 B CN105511006 B CN 105511006B CN 201610077903 A CN201610077903 A CN 201610077903A CN 105511006 B CN105511006 B CN 105511006B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, 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
- G02B5/3041—Polarisers, 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
- G02B5/305—Polarisers, 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
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- 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
-
- 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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- 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 present invention provides a kind of polaroid, display base plate, liquid crystal display panel and preparation method thereof, belongs to display technology field, can solve that existing polaroid orientation effect is poor, light transmittance and the relatively low problem of degree of polarization.The preparation method of the polaroid of the present invention includes the steps that forming oriented layer and polarizing layer, forms the polarizing layer and include the following steps：The application of mixture in the oriented layer, the mixture include the material that can be orientated under the force effect of magnetic field；The mixture is orientated by uniform magnetic field；Cure the mixture, forms the polarizing layer.Polaroid made from the preparation method of the polaroid of the present invention has consistent orientation, improves light transmittance and degree of polarization, has preferable display effect.
Description
Technical field
The invention belongs to display technology fields, and in particular to a kind of polaroid, display base plate, liquid crystal display panel and its system
Preparation Method.
Background technology
The mainstream of existing display device is liquid crystal display (Liquid Crystal Display, abbreviation LCD).LCD
Generally use liquid crystal molecule coordinate polaroid realize light by whether control, to realize the display of image.
The preparation method of existing polaroid is：First, it is coated with oriented layer on the glass substrate；Then, in oriented layer
Coating forms the mixture of polarizing layer, and mixture is orientated along the groove in oriented layer automatically；Finally, solidification mixture shape
At polarizing layer.
The inventor finds that the existing technology has at least the following problems：The mixture of formation polarizing layer orientation side in oriented layer
To the depth of parallelism it is relatively low, orientation effect is poor, cause made of polaroid light transmittance and degree of polarization it is also not high, make the good of product
Rate is in reduced levels.
As it can be seen that designing, a kind of differently- oriented directivity depth of parallelism is higher, and orientation effect is preferable, with higher light transmittance and degree of polarization
Polaroid becomes a technical problem to be solved urgently.
Invention content
The present invention is directed to existing above-mentioned technical problem, provide a kind of polaroid, display base plate, liquid crystal display panel and its
Preparation method.Above-mentioned display base plate and liquid crystal display panel include above-mentioned polaroid, and the polaroid orientation effect is good, have compared with
High transparency and degree of polarization can significantly improve display quality.
It solves specific technical solution used by above-mentioned technical problem and is to provide a kind of preparation method of polaroid, including
The step of forming oriented layer and polarizing layer, forms the polarizing layer and includes the following steps：The application of mixture in the oriented layer,
The mixture includes the material that can be orientated under the force effect of magnetic field；The mixture is orientated by uniform magnetic field；Solidification institute
Mixture is stated, the polarizing layer is formed.
Preferably, the mixture includes dichroic dye, UV reactive liquid crystals, curing agent and solvent, to passing through
The step of mixture described in uniform magnetic field is orientated, including：It is powered to forming magnetic field to solenoid, is coated with the institute of the mixture
It states to be orientated and be placed in the uniform magnetic field that the solenoid is formed, and keep the differently- oriented directivity of the oriented layer and the solenoid
The magnetic line of force direction of the uniform magnetic field formed is consistent.
Preferably, before the step of being orientated to the mixture by uniform magnetic field, further include：First by the mixture
It is heated to isotropic state, then it is liquid crystal that the mixture, which is cooled to room temperature, and keeps the UV reactive liquid crystals
State.
Preferably, the solenoidal cross sectional shape be square, any one of rectangle, circle, ellipse.
Preferably, the solenoidal length is at least twice or more of the oriented layer length.
Preferably, the magnitude range of the solenoidal electrical current is 1A~100A.
Preferably, proportional region of the dichroic dye in the mixture is 0.5wt%~5wt%；Institute
It is 90wt%~98wt% to state proportional region of the UV reactive liquid crystals in the mixture；The curing agent is in the mixture
In proportional region be 1wt%~5wt%.
Preferably, the dichroic dye is anthraquinone dyes or azo dyes；The UV reactive liquid crystals are
LC242 or RM257.
Preferably, the curing agent is photoinitiator, and the photoinitiator uses trimethylbenzoy-dipheny oxygen
Change phosphine or trimethylbenzoyl phenyl phosphinic acid ethyl ester；The step of curing the mixture, forming the polarizing layer, including：Profit
The mixture is irradiated with UV light, so that the photoinitiator is cured the mixture, forms the polarizing layer.
Preferably, the curing agent is thermal curing agents；The step of curing the mixture, forming the polarizing layer, packet
It includes：In the way of heat cure, so that the thermal curing agents is cured the mixture, form the polarizing layer, wherein heat cure temperature
Ranging from 80 DEG C~400 DEG C of degree.
Preferably, the mixture further includes the exhausted agent of thermal resistance, ratio model of the exhausted agent of thermal resistance in the mixture
It encloses for 0.5wt%~2wt%.
Preferably, the oriented layer is formed using polyimide material, and is orientated using friction mode.
Another technical solution provided by the invention is：A kind of preparation method of display base plate, this method is in above-mentioned polaroid
Preparation method on the basis of, the oriented layer and the polarizing layer are sequentially formed on bottom plate, formed display base plate.
Preferably, the bottom plate uses array base plate, and the display base plate of formation is array substrate；Alternatively, described
For bottom plate using color film bottom plate, the display base plate of formation is color membrane substrates.
Another technical solution provided by the invention is：A kind of preparation method of liquid crystal display panel, includes the following steps：Shape
At array substrate, and the incident side of the array substrate forms down polaroid；Color membrane substrates are formed, and the color membrane substrates go out
Light side forms upper polaroid；By the array substrate and the color membrane substrates to box, and in the array substrate and the color film
Filling liquid crystal between substrate；The down polaroid and/or the upper polaroid are formed using the preparation method of above-mentioned polaroid.
Another technical solution provided by the invention is：A kind of polaroid, including oriented layer and polarizing layer, the polarizing layer are adopted
It is formed with the mixture including dichroic dye, UV reactive liquid crystals, curing agent and solvent, wherein the UV response types liquid
Crystalline substance can be orientated under the force effect of magnetic field.
Preferably, proportional region of the dichroic dye in the mixture is 0.5wt%~5wt%；Institute
It is 90wt%~98wt% to state proportional region of the UV reactive liquid crystals in the mixture；The curing agent is in the mixture
In proportional region be 1wt%~5wt%.
Preferably, the dichroic dye is anthraquinone dyes or azo dyes；The UV reactive liquid crystals are
LC242 or RM257；The curing agent is thermal curing agents or photoinitiator, wherein the photoinitiator uses trimethylbenzoyl
Base-diphenyl phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester.
Preferably, the mixture further includes the exhausted agent of thermal resistance, ratio model of the exhausted agent of thermal resistance in the mixture
It encloses for 0.5wt%~2wt%.
Another technical solution provided by the invention is：A kind of display base plate, including bottom plate and polaroid, the bottom plate are battle array
Row bottom plate or color film bottom plate, the polaroid are above-mentioned polaroid.
Another technical solution provided by the invention is：A kind of liquid crystal display panel, include the array substrate that box is arranged and
Color membrane substrates, and the liquid crystal that is filled between the array substrate and the color membrane substrates, the incident side of the array substrate
It is provided with down polaroid, the light emission side of the color membrane substrates is provided with upper polaroid, the down polaroid and/or the upper polarisation
Piece is above-mentioned polaroid.
Polaroid provided by the invention and preparation method thereof, using mixed including dichroic dye and UV reactive liquid crystals
It closes object and forms polarizing layer, and mixture is made to complete to be orientated in uniform magnetic field, dichroic dye and UV reactive liquid crystals are even
Consistent differently- oriented directivity can be obtained in high-intensity magnetic field, orientation effect is excellent, significantly improves the light transmittance and degree of polarization of polaroid,
The yield of product is set to be in higher level.The polaroid is applied in display device, the aobvious of display device can be significantly improved
Show quality.
Display base plate provided by the invention, liquid crystal display panel and preparation method thereof include above-mentioned polaroid or polaroid
Preparation method makes display base plate, liquid crystal display panel have all advantageous effects for bringing of above-mentioned polaroid, make display base plate,
Liquid crystal display panel has higher display quality.
Description of the drawings
Fig. 1 is the flow diagram of the preparation method of the polaroid of embodiment 1；
Fig. 2 is the schematic diagram to form oriented layer；
Fig. 3 is the schematic diagram for the mixture that coating forms polarizing layer in oriented layer；
Fig. 4 is the schematic diagram being orientated to the mixture coated in oriented layer；
Fig. 5 is the side view of structure in Fig. 4；
Fig. 6 is the schematic diagram of the mixture coated in UV illumination curing oriented layer.
Wherein, reference numeral is：
1, carrier substrate；2, oriented layer；3, polarizing layer；4, solenoid；5, UV light sources.
Specific implementation mode
To make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings and specific embodiment party
Present invention is further described in detail for formula.
Embodiment 1：
The present embodiment provides a kind of preparation methods of polaroid, utilize the polaroid orientation effect obtained by the preparation method
It is good, there is higher light transmittance and degree of polarization, display quality can be significantly improved.
The preparation method of the polaroid includes the steps that forming oriented layer and polarizing layer.Fig. 1 is the polaroid of the present embodiment
Preparation method flow diagram, as shown in Figure 1, the preparation method includes the following steps：
S1：Form oriented layer.
Fig. 2 is the schematic diagram to form oriented layer, as shown in Fig. 2, in this step, in conjunction with the preparation work of existing maturation
Skill forms oriented layer 2 on carrier substrate 1, and oriented layer 2 is formed using polyimide material, and is taken using friction mode
To.Specifically preparation process is：First, the coating polyimide material on carrier substrate 1, and dry；Secondly, it is rubbed using friction pulley
The upper surface for wiping polyimide material on carrier substrate 1 makes the upper surface of material form the consistent elongated channels in direction, that is, obtains
It is orientated, to form oriented layer 2 on carrier substrate 1.
It is the step of forming polarizing layer on the basis of oriented layer below：
S2：The application of mixture in oriented layer 2, mixture include the material that can be orientated under the force effect of magnetic field.
Fig. 3 is the schematic diagram for the mixture that coating forms polarizing layer in oriented layer 2, as shown in figure 3, in this step,
The mixture for forming polarizing layer 3 includes dichroic dye, UV (Ultra Violet) reactive liquid crystals, curing agent and solvent.
Measured through overtesting, each constituent combined in following ratios, can make the polaroid to be formed have preferable orientation effect with
And higher degree of polarization and light transmittance, i.e.,：The proportional region of dichroic dye in the mixture is 0.5wt%~5wt%
(wt% refers to weight ratio)；The proportional region of UV reactive liquid crystals in the mixture is 90wt%~98wt%；Curing agent exists
Proportional region in mixture is 1wt%~5wt%.In addition, mixture need not be consolidated during following process in order to prevent
It is heating and curing in the case of change, further includes the exhausted agent of thermal resistance in mixture, the proportional region of the exhausted agent of thermal resistance in the mixture is
0.5wt%~2wt%.
Specifically, the dichroic dye in mixture is preferably anthraquinone dyes or azo dyes；Currently on the market,
UV reactive liquid crystals mainly have RM (Reactive Mesogen) series of United States Merck company (merck) such as：RM257 etc.；Also
There is the Paliocolor series of BASF Aktiengesellschaft (BASF), such as：LC242 etc., UV reactive liquid crystals be preferably LC242 or
RM257, including the mixture cost of above-mentioned material is relatively low, acquisition is easy.It is in crystal state under UV reactive liquid crystals room temperature, but will
It is placed in solvent, you can is dissolved as liquid, and liquid crystal molecule is evenly distributed in the liquid.Here solvent can select
Any one of cyclopentanone, acetone, propylene glycol methyl ether acetate, toluene, chloroform or their composition.In this way, mixture
The whole state that is also in a liquid state, you can easily apply to subsequent coating and orientation procedure, and above-mentioned UV reactive liquid crystals energy
Under the action of a magnetic force, extend along the direction of magnetic field force and be orientated, and dichroic dye is mixed in UV reactive liquid crystals
Molecule between, during being orientated to UV reactive liquid crystals, dichroic dye also just complete be orientated.
S3：Mixture is orientated by uniform magnetic field.
In this step, the mixture coated in oriented layer 2 is orientated, is completed by uniform magnetic field.Fig. 4 is to oriented layer
The schematic diagram that the mixture coated on 2 is orientated, Fig. 5 are the side view of structure in Fig. 4, and as shown in Figure 4, Figure 5, detailed process is：
The oriented layer 2 for being coated with mixture is put into the uniform magnetic field of the formation of solenoid 4 of energization, and keeps the orientation of oriented layer 2
Direction is consistent with the magnetic line of force direction of uniform magnetic field that the solenoid 4 of energization is formed, in this way, under the action of the magnetic line of force, UV is anti-
Answer the differently- oriented directivity of type liquid crystal then consistent with the differently- oriented directivity of oriented layer 2.
For the uniform magnetic field for enabling the solenoid 4 of energization to form wide-range and stablizing, the preferably section of solenoid 4
Shape is square, any one of rectangle, circle, ellipse, using cross sectional shape as the spiral shell of rectangular shape in Fig. 4, Fig. 5
For spool 4, the solenoid 4 of energization is formed in the interior thereof uniform magnetic field, and the magnetic line of force direction of uniform magnetic field is vertical paper in Fig. 4
The direction in face, the magnetic line of force direction in Fig. 5 in uniform magnetic field are as shown by arrows.Be coated with mixture oriented layer 2 be put into it is even
In high-intensity magnetic field, meanwhile, keep the differently- oriented directivity of oriented layer 2 consistent with the magnetic line of force direction of uniform magnetic field, wherein oriented layer 2
Differently- oriented directivity is the frictional direction in its manufacturing process, and the magnetic line of force direction of uniform magnetic field is according to the energization direction of solenoid 4
It can determine with the winding direction of coil, keep the differently- oriented directivity of oriented layer 2 consistent with the magnetic line of force direction of uniform magnetic field, then mix
UV reactive liquid crystals in object are by by the magnetic field force effect along magnetic line of force direction, and therefore, UV reactive liquid crystals will be along magnetic force
The direction of line, that is, be orientated along the differently- oriented directivity extension of oriented layer 2, meanwhile, the dichroic dye in mixture will press from both sides
It is miscellaneous that the orientation consistent with UV reactive liquid crystals will be also obtained between UV reactive liquid crystals.Therefore, it under the force effect of magnetic field, is formed
The mixture of polarizing layer can also obtain the consistent orientation in direction.
In order to ensure that the oriented layer 2 coated with mixture can be completely in uniform magnetic field, the preferred length of solenoid 4
H is twice or more of oriented layer length h, to obtain larger uniform magnetic field range, in this way, being coated with the oriented layer of mixture
2 are placed on the centre position inside solenoid 4, it is ensured that are completely in uniform magnetic field, avoid in 4 both ends of solenoid
In nonuniform magnetic fields.
In addition, in the magnetic field that the solenoid being powered is formed, magnetic induction is：B=μ nI；Wherein, μ is that space permeability is (normal
Number)；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
It is directly proportional.Theoretically, apply bigger electric current to solenoid, the magnetic field force that UV reactive liquid crystals are subject to is bigger, correspondingly, two
The orientation efficiency and orientation effect of chromotropism dyestuff and UV reactive liquid crystals are better, still, consider and apply larger electricity
The effect of the influence and actually required orientation to production cost is flowed, is preferably 1A to the magnitude range of solenoidal electrical current
~100A to obtain preferably orientation effect relatively, while controlling the increase of production cost, meanwhile, to ensure dichroism dye
Material and UV reactive liquid crystals are orientated completely, and solenoidal energization period ranges preferably from 0.5s~60s.
It is good to have in order to ensure that UV reactive liquid crystals are completely in liquid crystal state before carrying out S3 steps
Mobility, with obtained in uniform magnetic field it is preferable be orientated, the oriented layer 2 for being preferably first coated with mixture whole is added
Heat makes the UV reactive liquid crystals in mixture be heated on its phase transition temperature, makes up to isotropic state, then by UV
Reactive liquid crystals are cooled to room temperature and keep liquid crystal state.Later, be coated with mixture be put into uniform magnetic field into
Row is orientated, and can be further increased and is orientated efficiency and orientation effect.
S4：Solidification mixture forms polarizing layer 3.
The present embodiment forms polaroid by the way of UV illumination curings.Correspondingly, curing agent is photoinitiator, it is light-initiated
Agent uses trimethylbenzoy-dipheny phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester；Fig. 6 is UV illumination curings
The schematic diagram of the mixture coated in oriented layer 2, as shown in fig. 6, solidification mixture, during forming polarizing layer, including：Profit
Mixture is irradiated with the UV light that UV light sources 5 are sent out, makes photoinitiator solidification mixture, forms polarizing layer 3.Above-mentioned photoinitiator exists
In the case that UV light irradiates, polymerisation occurs, generates the compound of crosslinking curing, to make mixture cure, obtains packet
Polaroid containing oriented layer 2 and polarizing layer 3.
In addition, the present embodiment can also form polaroid by the way of heat cure, meanwhile, in order to ensure the effect of heat cure
Rate can not add the exhausted agent of thermal resistance in the mixture for forming polarizing layer.Correspondingly, curing agent is thermal curing agents；Solidification mixture,
During forming polarizing layer, including：In the way of heat cure, make thermal curing agents solidification mixture, form polarizing layer,
In, ranging from 80 DEG C~400 DEG C of heat curing temperature.Above-mentioned thermal curing agents in case of heating, similarly generate crosslinking curing
Compound, to make mixture cure.
The preparation method of polaroid provided in this embodiment, using mixed comprising dichroic dye and UV reactive liquid crystals
Object is closed the polarizing layer in polaroid is made, and be orientated to UV reactive liquid crystals using uniform magnetic field, two in mixture
Chromotropism dyestuff can obtain the orientation consistent with UV reactive liquid crystals between being mixed in UV reactive liquid crystals, can significantly carry
The light transmittance and degree of polarization of high polaroid make the yield of product be in higher level.
The present embodiment also provides a kind of polaroid, which is using polaroid made from above-mentioned preparation method.It should
Polaroid includes oriented layer and polarizing layer, wherein the material of polarizing layer be include dichroic dye, it is UV reactive liquid crystals, solid
The mixture of agent and solvent.
Specifically, the proportional region of dichroic dye in the mixture is 0.5wt%~5wt%；UV reactive liquid crystals
Proportional region in the mixture is 90wt%~98wt%；The proportional region of curing agent in the mixture be 1wt%~
5wt%.Dichroic dye is anthraquinone dyes or azo dyes；UV reactive liquid crystals are LC242 or RM257；Curing agent
For thermal curing agents or photoinitiator, wherein photoinitiator uses trimethylbenzoy-dipheny phosphine oxide or trimethylbenzene first
Aminosulfonylphenyl phosphinic acid ethyl ester.
In addition, mixture can also include the exhausted agent of thermal resistance, the proportional region of the exhausted agent of thermal resistance in the mixture be 0.5wt%~
2wt%, the exhausted agent of thermal resistance can prevent mixture from not needing cured be cured during following process.
Polaroid provided in this embodiment, by using the formation such as dichroic dye and UV reactive liquid crystals, Neng Gouti
The light transmittance and degree of polarization of high polaroid, and the orientation of UV reactive liquid crystals can be completed by uniform magnetic field, in mixture
Dichroic dye will be mixed between UV reactive liquid crystals and obtain the orientation consistent with UV reactive liquid crystals, orientation effect is excellent
It is good, improve the yield of product.
Embodiment 2：
The present embodiment provides a kind of preparation method of display base plate, the preparation method of the display base plate, in embodiment 1
On the basis of the preparation method of polaroid, oriented layer and polarizing layer are sequentially formed on bottom plate, form display base plate.
Bottom plate mentioned here can be array base plate or color film bottom plate.If using array base plate, the display base of formation
Plate is then array substrate；If bottom plate, using color film bottom plate, the display base plate of formation if is color membrane substrates.
The preparation method of above-mentioned array substrate or the preparation method of color membrane substrates include the system of the polaroid in embodiment 1
Preparation Method, make the polaroid in array substrate obtained or color membrane substrates have consistent orientation and higher light transmittance and
Degree of polarization, correspondingly, array substrate or color membrane substrates obtain better display effect.
The present embodiment also provides a kind of display base plate, the display base plate, including bottom plate and polaroid, and bottom plate is array base plate
Or color film bottom plate, it is preferred that emphasis is, the polaroid included by the display base plate is the polaroid in embodiment 1, makes the display base plate
All technique effects with polaroid in embodiment 1 have better display effect.
Embodiment 3：
The present embodiment provides a kind of preparation method of liquid crystal display panel, the preparation method of the liquid crystal display panel, including
Following steps：
S1：Array substrate is formed, and the incident side of array substrate forms down polaroid；
S2：Color membrane substrates are formed, and the light emission side of color membrane substrates forms upper polaroid；
S3：By array substrate and color membrane substrates to box, and the filling liquid crystal between array substrate and color membrane substrates；
Wherein, the down polaroid in S1 steps and/or the upper polaroid in S2 steps are using the polaroid in embodiment 1
Preparation method is formed.
It is easily understood that the step of the step of forming array substrate in this method and formation color membrane substrates, there is no specific
Sequencing requirement, that is to say, that the sequencing of above-mentioned S1 steps and S2 steps can be exchanged, this implementation can be equally made
Liquid crystal display panel made from example preparation method has all technique effects of polaroid in embodiment 1, has preferably display
Effect.
The present embodiment also provides a kind of liquid crystal display panel, the liquid crystal display panel, includes the array substrate that box is arranged
And color membrane substrates, and the liquid crystal that is filled between array substrate and color membrane substrates, the incident side of array substrate be provided with it is lower partially
The light emission side of mating plate, color membrane substrates is provided with upper polaroid, it is important that down polaroid and/or upper polaroid is in embodiments 1
Polaroid.The liquid crystal display panel has all technique effects of polaroid in embodiment 1, has better display effect.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (20)
1. a kind of preparation method of polaroid includes the steps that forming oriented layer and polarizing layer, which is characterized in that formed described inclined
Photosphere includes the following steps：
The application of mixture in the oriented layer, the mixture include the material that can be orientated under the force effect of magnetic field；
The mixture is orientated by uniform magnetic field；Including：
It is powered to forming magnetic field to solenoid, the orientation for being coated with the mixture is placed on the even of the solenoid formation
In high-intensity magnetic field, and keep the magnetic line of force direction of the differently- oriented directivity and the uniform magnetic field of solenoid formation of the oriented layer
Unanimously；
Wherein：The mixture includes dichroic dye, UV reactive liquid crystals, curing agent and solvent；The curing agent is light
Initiator；
Cure the mixture, forms the polarizing layer；Including：
The mixture is irradiated using UV light, so that the photoinitiator is cured the mixture, forms the polarizing layer.
2. the preparation method of polaroid according to claim 1, which is characterized in that by uniform magnetic field to the mixing
Before the step of object is orientated, further include：
The mixture is first heated to isotropic state, then the mixture is cooled to room temperature and keeps the UV anti-
It is liquid crystal state to answer type liquid crystal.
3. the preparation method of polaroid according to claim 1, which is characterized in that the solenoidal cross sectional shape is just
Any one of rectangular, rectangle, circle, ellipse.
4. the preparation method of polaroid according to claim 1, which is characterized in that the solenoidal length is at least institute
State oriented layer length twice or more.
5. the preparation method of polaroid according to claim 1, which is characterized in that the solenoidal electrical current it is big
Small range is 1A~100A.
6. the preparation method of polaroid according to claim 1, which is characterized in that the dichroic dye is described mixed
It is 0.5wt%~5wt% to close the proportional region in object；Proportional region of the UV reactive liquid crystals in the mixture be
90wt%~98wt%；Proportional region of the curing agent in the mixture is 1wt%~5wt%.
7. the preparation method of polaroid according to claim 1, which is characterized in that
The dichroic dye is anthraquinone dyes or azo dyes；
The UV reactive liquid crystals are LC242 or RM257.
8. the preparation method of polaroid according to claim 1, which is characterized in that the photoinitiator uses trimethylbenzene
Formoxyl-diphenyl phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester.
9. the preparation method of polaroid according to claim 1, which is characterized in that the curing agent is thermal curing agents；Institute
The step of stating the solidification mixture, forming the polarizing layer, including：
In the way of heat cure, so that the thermal curing agents is cured the mixture, form the polarizing layer, wherein heat cure
Ranging from 80 DEG C~400 DEG C of temperature.
10. according to the preparation method of any polaroid of claim 1~9, which is characterized in that the mixture further includes
The exhausted agent of thermal resistance, proportional region of the exhausted agent of thermal resistance in the mixture are 0.5wt%~2wt%.
11. according to the preparation method of any polaroid of claim 1~9, which is characterized in that the oriented layer is using poly-
Acid imide material is formed, and is orientated using friction mode.
12. a kind of preparation method of display base plate, which is characterized in that in the system of any polaroid of claim 1~11
On the basis of Preparation Method, the oriented layer and the polarizing layer are sequentially formed on bottom plate, form display base plate.
13. the preparation method of display base plate according to claim 12, which is characterized in that the bottom plate uses array bottom
The display base plate of plate, formation is array substrate；Alternatively, the bottom plate is using color film bottom plate, the display base plate of formation
For color membrane substrates.
14. a kind of preparation method of liquid crystal display panel, includes the following steps：
Array substrate is formed, and the incident side of the array substrate forms down polaroid；
Color membrane substrates are formed, and the light emission side of the color membrane substrates forms upper polaroid；
By the array substrate and the color membrane substrates to box, and the filling liquid between the array substrate and the color membrane substrates
It is brilliant；
It is characterized in that,
The down polaroid and/or the upper polaroid use the preparation method of any polaroid of claim 1~11
It is formed.
15. a kind of polaroid, including oriented layer and polarizing layer, which is characterized in that it includes dichroism dye that the polarizing layer, which uses,
The mixture of material, UV reactive liquid crystals, curing agent and solvent is formed, wherein the UV reactive liquid crystals can be in magnetic field force effect
Lower orientation.
16. polaroid according to claim 15, which is characterized in that
Proportional region of the dichroic dye in the mixture is 0.5wt%~5wt%；
Proportional region of the UV reactive liquid crystals in the mixture is 90wt%~98wt%；
Proportional region of the curing agent in the mixture is 1wt%~5wt%.
17. polaroid according to claim 15, which is characterized in that
The dichroic dye is anthraquinone dyes or azo dyes；
The UV reactive liquid crystals are LC242 or RM257；
The curing agent is thermal curing agents or photoinitiator, wherein the photoinitiator uses trimethylbenzoy-dipheny
Phosphine oxide or trimethylbenzoyl phenyl phosphinic acid ethyl ester.
18. polaroid according to claim 15, which is characterized in that the mixture further includes the exhausted agent of thermal resistance, the heat
It is 0.5wt%~2wt% to block proportional region of the agent in the mixture.
19. a kind of display base plate, including bottom plate and polaroid, the bottom plate is array base plate or color film bottom plate, which is characterized in that
The polaroid is any polaroid of claim 15~18.
20. a kind of liquid crystal display panel includes the array substrate that box is arranged and color membrane substrates, and is filled in the array base
The incident side of liquid crystal between plate and the color membrane substrates, the array substrate is provided with down polaroid, the color membrane substrates
Light emission side is provided with upper polaroid, which is characterized in that the down polaroid and/or the upper polaroid are claim 15~18
Any polaroid.
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| CN105807359B (en) * | 2016-05-30 | 2017-04-05 | 京东方科技集团股份有限公司 | Line polarisation layer, rotatory polarization layer, flexible display apparatus and preparation method thereof |
| CN110441933A (en) * | 2019-07-19 | 2019-11-12 | 武汉华星光电技术有限公司 | Display panel manufactured by the manufacturing method and use this method of display panel |
| JP7492813B2 (en) * | 2019-07-31 | 2024-05-30 | 住友化学株式会社 | Polarizing film and method for producing same |
| CN114690477A (en) * | 2022-03-31 | 2022-07-01 | Tcl华星光电技术有限公司 | Coating type polarizer, preparation method thereof and display module |
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