CN107402416A - quantum diffusion film and preparation method thereof - Google Patents
quantum diffusion film and preparation method thereof Download PDFInfo
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- CN107402416A CN107402416A CN201710773043.7A CN201710773043A CN107402416A CN 107402416 A CN107402416 A CN 107402416A CN 201710773043 A CN201710773043 A CN 201710773043A CN 107402416 A CN107402416 A CN 107402416A
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 169
- 229920000642 polymer Polymers 0.000 claims abstract description 52
- 238000005191 phase separation Methods 0.000 claims abstract description 6
- 239000000178 monomer Substances 0.000 claims description 22
- 229920005573 silicon-containing polymer Polymers 0.000 claims description 17
- 239000006185 dispersion Substances 0.000 claims description 13
- 229920002313 fluoropolymer Polymers 0.000 claims description 12
- 239000004811 fluoropolymer Substances 0.000 claims description 12
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 11
- -1 Radical siloxane Chemical class 0.000 claims description 9
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 claims description 8
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 238000003682 fluorination reaction Methods 0.000 claims description 6
- 238000004020 luminiscence type Methods 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- 239000002096 quantum dot Substances 0.000 claims description 6
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000003999 initiator Substances 0.000 claims 1
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 45
- 238000000034 method Methods 0.000 abstract description 21
- 230000004888 barrier function Effects 0.000 abstract description 20
- 230000000007 visual effect Effects 0.000 abstract description 10
- 201000009310 astigmatism Diseases 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000005142 aphototropism Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0215—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having a regular structure
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of quantum diffusion film and preparation method thereof.Traditional quantum material film and diffusion barrier are integrated on a film by the preparation method of the quantum diffusion film of the present invention, advantageously reduce the package count of liquid crystal display, simplify the assembling processing procedure of liquid crystal display；Quantum material is scattered in highdensity polymer, protection is packaged to quantum material using the characteristic of highdensity polymer barrier water oxygen, improves the service life of quantum material；The projection on quantum diffusion barrier surface is formed using the method for polymer phase separation, the projection plays a part of astigmatism particle, the uniform light that the light of backlight and quantum material can be sent is dispersed to all angles, plays a part of expanding visual angle of liquid crystal display.The quantum diffusion film of the present invention is made using the above method, it is possible to increase the colour gamut and color saturation of liquid crystal display, and have the function that to expand visual angle of liquid crystal display.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of quantum diffusion film and preparation method thereof.
Background technology
Liquid crystal display device (Liquid Crystal Display, LCD) has thin fuselage, power saving, radiationless etc. numerous
Advantage, it is widely used, such as：Mobile phone, personal digital assistant (PDA), digital camera, computer screen or notes
This computer screen etc..
Liquid crystal display device major part on existing market is backlight liquid crystal display device, and it includes backlight module
(Backlight Module), the liquid crystal panel being incorporated on backlight module and before fixing the liquid crystal panel and backlight module
Frame.
The operation principle of liquid crystal panel is that liquid crystal molecule, two panels glass substrate are placed among the parallel glass substrate of two panels
There are many tiny electric wires vertically and horizontally centre, controls liquid crystal molecule to change direction by whether being powered, by backlight module
Light reflect generation picture.Liquid crystal panel is not luminous in itself, it is necessary to normally show by the light source of backlight module offer
Show image, backlight module is divided into two kinds of down straight aphototropism mode set and side entrance back module according to the difference of light source incidence position.
Down straight aphototropism mode set is by illuminating source (such as cathodouminescence fluorescent tube (Cold Cathode Fluorescent
Lamp, CCFL)) or light emitting diode (Light Emitting Diode, LED)) liquid crystal panel rear is arranged on, directly formed
Area source is supplied to liquid crystal panel.And side entrance back module is that backlight LED lamp bar (Light bar) is located at into liquid crystal panel
At the back plate edges at side rear, the light that LED light bar is sent enters light from light guide plate (Light Guide Plate, LGP) side
Face enters light guide plate, is projected after reflection and diffusion from light guide plate exiting surface, then carried via optical diaphragm group with forming area source
Supply liquid crystal panel.
Under normal circumstances, down straight aphototropism mode set in side entrance back module with being equipped with diffusion barrier, and diffusion barrier is in backlight
Play a part of correcting diffusion angle in module, increase light radiation area, while reduce the luminous intensity of unit area, that is, reduce
Briliancy；Illuminating source after spreading membrane diffusion, become area is bigger, the uniformity preferably, the area source of chroma stability.
Quantum material is capable of the nano material of luminescence generated by light for one kind, and it can control transmitted wave by changing its size
It is long, there is high color purity, spontaneous emission characteristic, the color scalability carried out is adjusted easily by size, therefore be usually used in
In photoelectric device such as liquid crystal display, a kind of application of quantum material in a liquid crystal display at present is：Making includes feux rouges amount
The quantum material film of sub- material and green quantum material, the quantum material film is applied in liquid crystal display, with blueness
Backlight, which is used in combination, obtains white light, due to red quantum material and the feux rouges that green quantum material is sent with green glow with higher
Purity, therefore the colour gamut and color saturation of liquid crystal display can be improved.
The content of the invention
It is an object of the invention to provide a kind of preparation method of quantum diffusion film, by traditional quantum material film with expanding
Scattered film is integrated on a film, and quantum material is scattered in highdensity polymer, utilizes highdensity polymer
The characteristic of barrier water oxygen is packaged protection to quantum material, improves the service life of quantum material.
The present invention also aims to provide a kind of quantum diffusion film, it is possible to increase the colour gamut of liquid crystal display is satisfied with color
And degree, and have the function that to expand visual angle of liquid crystal display.
To achieve the above object, the present invention provides a kind of preparation method of quantum diffusion film, including：
Substrate and quantum material dispersion soln are provided；
The quantum material dispersion soln include low surface energy polymeric molecule, solvent, polymerisable monomer, quantum material,
And auxiliary agent；
The quantum material dispersion soln is coated uniformly on substrate surface, heating obtains quantum material point after removing solvent
Dissipate film；
Ultraviolet light is carried out to the quantum material dispersed film, made polymerizable in the quantum material dispersed film
Monomer fully reacts, and forms the polymer of high crosslink density, and the polymer of the high crosslink density gets up quantum material cladding；
The quantum material dispersed film is heated, the low surface energy polymeric molecule divides from the quantum material
Dissipate film in high crosslink density polymer in be expelled from come, occur polymer phase separation, formed quantum material membrane body and
Multiple projections in the quantum material membrane body surface face are uniformly distributed in, the material of the quantum material film body includes high crosslink density
Polymer and the quantum material that is coated in the polymer of the high crosslink density, the multiple raised material include low table
Face can polymer molecule, the quantum material film body and the multiple raised compositions for being uniformly distributed in the quantum material membrane body surface face
Quantum diffusion film；
The quantum diffusion film is peeled off from the substrate, that is, obtains quantum diffusion film.
In the quantum material dispersion soln, the mass percent of the low surface energy polymeric molecule for 10%~
30%, the mass percent of the polymerisable monomer is 10%~30%, and the mass percent of the solvent is 30%~60%,
The mass percent of the quantum material is 0.01%~10%, and the mass percent of the auxiliary agent is 0.1%~5%, described
Auxiliary agent includes dispersant and light trigger.
The low surface energy polymeric molecule includes one in fluoropolymer, silicon-containing polymer and fluorine silicon contained polymer
Kind is a variety of；The fluoropolymer includes polyfluoroacrylate, fluorination polystyrene and one kind or more in PFPE
Kind；The silicon-containing polymer includes dimethyl silicone polymer；The fluorine silicon contained polymer includes trifluompropyl methyl polysiloxane；
The polymerisable monomer includes trimethylolpropane trimethacrylate.
The quantum material is luminescence generated by light quantum material；The quantum dot of the quantum material including zero-dimension structural with it is one-dimensional
One or more in the quantum rod of structure；The quantum material includes red quantum material and green quantum material.
The temperature heated to the quantum material dispersed film be 50 DEG C~300 DEG C, the heat time be 10min~
300min。
The multiple projection be top surface be arcwall face cylinder, a diameter of 0.1 μm of the cross section of the cylinder
~1 μm, the multiple raised height is 50nm~500nm.
The present invention also provides a kind of quantum diffusion film, including：Quantum material film body and it is uniformly distributed in the quantum material
Multiple projections on film body surface；Wherein, the material of the quantum material film body includes the polymer of high crosslink density and is coated on
Quantum material in the polymer of the high crosslink density, the polymer of the high crosslink density polymerize by polymerisable monomer and
Into；The multiple raised material includes low surface energy polymeric molecule.
The low surface energy polymeric molecule includes one in fluoropolymer, silicon-containing polymer and fluorine silicon contained polymer
Kind is a variety of；The fluoropolymer includes polyfluoroacrylate, fluorination polystyrene and one kind or more in PFPE
Kind；The silicon-containing polymer includes dimethyl silicone polymer；The fluorine silicon contained polymer includes trifluompropyl methyl polysiloxane；
The polymerisable monomer includes trimethylolpropane trimethacrylate.
The quantum material is luminescence generated by light quantum material；The quantum dot of the quantum material including zero-dimension structural with it is one-dimensional
One or more in the quantum rod of structure；The quantum material includes red quantum material and green quantum material.
The multiple projection be top surface be arcwall face cylinder, a diameter of 0.1 μm of the cross section of the cylinder
~1 μm, the multiple raised height is 50nm~500nm.
Beneficial effects of the present invention：The preparation method of the quantum diffusion film of the present invention is by traditional quantum material film with expanding
Scattered film is integrated on a film, advantageously reduces the package count of liquid crystal display, simplifies the assembling processing procedure of liquid crystal display；Will
Quantum material is scattered in highdensity polymer, and quantum material is carried out using the characteristic of highdensity polymer barrier water oxygen
Packaging protection, improve the service life of quantum material；The convex of quantum diffusion barrier surface is formed using the method for polymer phase separation
Rise, the projection plays a part of astigmatism particle, point for the uniform light that can send the light of backlight and quantum material
All angles are dissipated to, play a part of expanding visual angle of liquid crystal display；In addition, the preparation method system of the quantum diffusion film of the present invention
Journey is simple, and production cost is low.The quantum diffusion film of the present invention is made using the above method, it is possible to increase the colour gamut of liquid crystal display
With color saturation, and have the function that expand visual angle of liquid crystal display.
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
Brief description of the drawings
Below in conjunction with the accompanying drawings, by the way that the embodiment of the present invention is described in detail, technical scheme will be made
And other beneficial effects are apparent.
In accompanying drawing,
Fig. 1 is the flow chart of the preparation method of the quantum diffusion film of the present invention；
Fig. 2 is the schematic diagram of the step 1 of the preparation method of the quantum diffusion film of the present invention；
Fig. 3 is the schematic diagram of the step 2 of the preparation method of the quantum diffusion film of the present invention；
Fig. 4 is the schematic diagram of the step 3 of the preparation method of the quantum diffusion film of the present invention；
Fig. 5 is the schematic diagram of the step 4 of the preparation method of the quantum diffusion film of the present invention；
Fig. 6 is the structural representation of the quantum diffusion film of the present invention.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
Referring to Fig. 1, the present invention provides a kind of preparation method of quantum diffusion film, comprise the following steps：
Step 1, as shown in Figure 2, there is provided substrate 10 and quantum material dispersion soln；
The quantum material dispersion soln includes low surface energy polymeric molecule 21, solvent, polymerisable monomer 22, quantum material
Material 23 and auxiliary agent；
The quantum material dispersion soln is coated uniformly on the surface of substrate 10, heating obtains quantum material after removing solvent
Dispersed film 20.
Specifically, in the quantum material dispersion soln, the mass percent of the low surface energy polymeric molecule 21 is
10%~30%, the mass percent of the polymerisable monomer 22 is 10%~30%, and the mass percent of the solvent is
30%~60%, the mass percent of the quantum material 23 is 0.01%~10%, and the mass percent of the auxiliary agent is
0.1%~5%, the auxiliary agent includes dispersant and light trigger.
Specifically, the low surface energy polymeric molecule 21 includes fluoropolymer, silicon-containing polymer and fluorine silicon polymerization
One or more in thing.
Preferably, the fluoropolymer includes one in polyfluoroacrylate, fluorination polystyrene and PFPE
Kind is a variety of；The silicon-containing polymer includes dimethyl silicone polymer；The fluorine silicon contained polymer includes poly- trifluoro propyl methyl
Siloxanes (TFPMS).
Specifically, the polymerisable monomer 22, which includes one or more, contains two or more reactive functional groups
Small molecule monomer.Preferably, the polymerisable monomer 22 includes trimethylolpropane trimethacrylate (TMPTA).
Specifically, the quantum material 23 is luminescence generated by light quantum material.
Specifically, the quantum dot of the quantum material 23 including zero-dimension structural and one kind in the quantum rod of one-dimentional structure or
It is a variety of.
Further, to improve the dispersiveness of quantum material 23 in the solution, surface can be carried out to quantum material 23 and repaiied
Decorations.
Specifically, the quantum material 23 includes red quantum material and green quantum material, measured so as to subsequently obtained
When sub- diffusion barrier 60 is used cooperatively with Blue backlight, red quantum material and green quantum material in the quantum diffusion film 60
Feux rouges and green glow are sent under the exciting of Blue backlight, the feux rouges forms white after being mixed with green glow and unabsorbed Blue backlight
Light projects.
Specifically, the solvent is organic solvent, it is preferred that the solvent includes toluene, tetrahydrofuran, acetone and second
One or more in glycol.
Step 2, as shown in figure 3, to the quantum material dispersed film 20 carry out ultraviolet light (UV) irradiation, make the quantum
Polymerisable monomer 22 in material dispersed film 20 fully reacts, and forms the polymer 30 of high crosslink density, and the high crosslinking is close
The polymer 30 of degree gets up the cladding of quantum material 23, plays a part of packaging protection to quantum material 23.
Step 3, as shown in figure 4, heated to the quantum material dispersed film 20, the low surface energy polymeric point
Son 21 is expelled from coming from the polymer 30 of the high crosslink density in the quantum material dispersed film 20, and polymer phase occurs
Separation, form quantum material membrane body 40 and be uniformly distributed in multiple raised the 50 of the surface of quantum material film body 40, the amount
The material of sub- material film body 40 includes the polymer 30 of high crosslink density and is coated in the polymer 30 of the high crosslink density
Quantum material 23, the multiple raised 50 material includes low surface energy polymeric molecule 21, the quantum material film body 40
And it is uniformly distributed in multiple raised the 50 of the surface of quantum material film body 40 and forms quantum diffusion film 60.
Specifically, in the step 3, the temperature heated to the quantum material dispersed film 20 is 50 DEG C~300
DEG C, the heat time is 10min~300min.
Step 4, as shown in figure 5, the quantum diffusion film 60 is peeled off from the substrate 10, that is, obtain quantum diffusion film
60。
Specifically, the multiple raised 50 play scattering process, can be to injecting light and amount in quantum diffusion film 60
The light that sub- material 23 is sent is scattered, and light is uniformly dissipated into all angles, expands the visual angle of liquid crystal display.
Generally on membrane material surface, coating astigmatism particle plays astigmatism effect, and quantum produced by the present invention to existing diffusion barrier
Diffusion barrier 60 then plays astigmatism effect, compared with the preparation method of existing diffusion barrier, this hair using multiple raised the 50 of surface
Bright diffusion barrier need not be separately provided the step of coating astigmatism particle, the multiple raised 50 sides based on polymer phase separation
Method is formed, and processing procedure is more simple, and obtained multiple raised 50 distributions are more uniform, have more excellent light-dispersing effect.
Specifically, the multiple raised 50 particle diameter can be by controlling in the quantum material dispersion soln with distribution density
The heating-up temperature of the ratio of each component and the step 3 is adjusted with the heat time.
Specifically, the multiple raised 50 be top surface be arcwall face cylinder, the cross section of the cylinder it is straight
Footpath is 0.1 μm~1 μm, and the multiple raised 50 height is 50nm~500nm.
Traditional quantum material film is integrated in one thin by the preparation method of the quantum diffusion film of the present invention with diffusion barrier
On film, the package count of liquid crystal display is advantageously reduced, simplifies the assembling processing procedure of liquid crystal display；Quantum material 23 is scattered in
In the polymer 30 of high crosslink density, the characteristic that water oxygen is obstructed using the polymer 30 of high crosslink density is carried out to quantum material 23
Packaging protection, improve the service life of quantum material 23；Quantum diffusion barrier surface is formed using the method for polymer phase separation
Projection 50, described raised 50 plays a part of astigmatism particle, the light that can send the light of backlight and quantum material 23
All angles uniformly are dispersed to, play a part of expanding visual angle of liquid crystal display；In addition, the system of the quantum diffusion film of the present invention
Make that method processing procedure is simple, and production cost is low.
Referring to Fig. 6, the preparation method based on above-mentioned quantum diffusion film, the present invention also provides a kind of quantum diffusion film 60,
Including：Quantum material film body 40 and it is uniformly distributed in multiple raised the 50 of the surface of quantum material film body 40；Wherein, the amount
The material of sub- material film body 40 includes the polymer 30 of high crosslink density and is coated in the polymer 30 of the high crosslink density
Quantum material 23, the polymer 30 of the high crosslink density is polymerized by polymerisable monomer 22；The multiple raised 50
Material includes low surface energy polymeric molecule 21.
Specifically, the low surface energy polymeric molecule 21 includes fluoropolymer, silicon-containing polymer and fluorine silicon polymerization
One or more in thing.
Preferably, the fluoropolymer includes one in polyfluoroacrylate, fluorination polystyrene and PFPE
Kind is a variety of；The silicon-containing polymer includes dimethyl silicone polymer；The fluorine silicon contained polymer includes poly- trifluoro propyl methyl
Siloxanes (TFPMS).
Specifically, the polymerisable monomer 22, which includes one or more, contains two or more reactive functional groups
Small molecule monomer.Preferably, the polymerisable monomer 22 includes trimethylolpropane trimethacrylate (TMPTA).
Specifically, the quantum material 23 is luminescence generated by light quantum material.
Specifically, the quantum dot of the quantum material 23 including zero-dimension structural and one kind in the quantum rod of one-dimentional structure or
It is a variety of.
Specifically, the quantum material 23 includes red quantum material and green quantum material, so as to the quantum of the present invention
When diffusion barrier 60 is used cooperatively with Blue backlight, the red quantum material in the quantum diffusion film 60 exists with green quantum material
Feux rouges and green glow are sent under the exciting of Blue backlight, the feux rouges forms white light after being mixed with green glow and unabsorbed Blue backlight
Project.
Specifically, the multiple raised 50 be top surface be arcwall face cylinder, the cross section of the cylinder it is straight
Footpath is 0.1 μm~1 μm, and the multiple raised 50 height is 50nm~500nm.
Specifically, the quantum diffusion film 60 of the present invention can apply in liquid crystal display：It is arranged in backlight module, pastes
Invest liquid crystal display panel (Cell) surface, or in the film layer structure applied to LCD intralamellar part.
Traditional quantum material film and diffusion barrier are integrated on a film by the quantum diffusion film of the present invention, are advantageous to
The package count of liquid crystal display is reduced, simplifies the assembling processing procedure of liquid crystal display；Liquid crystal can be improved containing quantum material 23
Show the colour gamut and color saturation of device；Quantum material 23 is scattered in the polymer 30 of high crosslink density, it is close using height crosslinking
The characteristic that the polymer 30 of degree obstructs water oxygen is packaged protection to quantum material 23, it is possible to increase quantum material 23 uses the longevity
Life；In addition, the quantum diffusion film surface of the present invention be provided with multiple raised 50, described raised 50 with the one of quantum material film body 40 into
Type, processing procedure is simple, and described raised 50 play a part of astigmatism particle, can send the light of backlight and quantum material 23
Uniform light is dispersed to all angles, so as to play a part of expanding visual angle of liquid crystal display.
In summary, the present invention provides a kind of quantum diffusion film and preparation method thereof.The system of the quantum diffusion film of the present invention
Make method traditional quantum material film and diffusion barrier are integrated on a film, advantageously reduce the component of liquid crystal display
Number, simplify the assembling processing procedure of liquid crystal display；Quantum material is scattered in highdensity polymer, utilizes highdensity polymerization
The characteristic of thing barrier water oxygen is packaged protection to quantum material, improves the service life of quantum material；Utilize polymer phase point
From method form the projection on quantum diffusion barrier surface, the projection plays a part of astigmatism particle, can be by the light of backlight
The uniform light that line and quantum material are sent is dispersed to all angles, plays a part of expanding visual angle of liquid crystal display；In addition,
The preparation method processing procedure of the quantum diffusion film of the present invention is simple, and production cost is low.The quantum diffusion film of the present invention uses above-mentioned side
Method is made, it is possible to increase the colour gamut and color saturation of liquid crystal display, and have the function that to expand visual angle of liquid crystal display.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the claims in the present invention
Protection domain.
Claims (10)
- A kind of 1. preparation method of quantum diffusion film, it is characterised in that including：Substrate (10) and quantum material dispersion soln are provided；The quantum material dispersion soln includes low surface energy polymeric molecule (21), solvent, polymerisable monomer (22), quantum material Expect (23) and auxiliary agent；The quantum material dispersion soln is coated uniformly on substrate (10) surface, heating obtains quantum material point after removing solvent Dissipate film (20)；To the quantum material dispersed film (20) carry out ultraviolet light, make in the quantum material dispersed film (20) can Polymerized monomer (22) is fully reacted, and forms the polymer (30) of high crosslink density, the polymer (30) of the high crosslink density will Quantum material (23) cladding is got up；The quantum material dispersed film (20) is heated, the low surface energy polymeric molecule (21) is from the quantum material It is expelled from coming in the polymer (30) of high crosslink density in material dispersed film (20), polymer phase separation, forming amount occurs Sub- material film body (40) and multiple raised (50) for being uniformly distributed in quantum material film body (40) surface, the quantum material The material of film body (40) includes the polymer (30) of high crosslink density and is coated in the polymer (30) of the high crosslink density Quantum material (23), it is the multiple projection (50) material include low surface energy polymeric molecule (21), the quantum material Film body (40) and multiple raised (50) the composition quantum diffusion films (60) for being uniformly distributed in quantum material film body (40) surface；The quantum diffusion film (60) is peeled off from the substrate (10), that is, obtains quantum diffusion film (60).
- 2. the preparation method of quantum diffusion film as claimed in claim 1, it is characterised in that the quantum material dispersion soln In, the mass percent of the low surface energy polymeric molecule (21) is 10%~30%, the matter of the polymerisable monomer (22) It is 10%~30% to measure percentage, and the mass percent of the solvent is 30%~60%, the quality of the quantum material (23) Percentage is 0.01%~10%, and the mass percent of the auxiliary agent is 0.1%~5%, and the auxiliary agent includes dispersant and light Initiator.
- 3. the preparation method of quantum diffusion film as claimed in claim 1, it is characterised in that the low surface energy polymeric molecule (21) one or more in fluoropolymer, silicon-containing polymer and fluorine silicon contained polymer are included；The fluoropolymer includes One or more in polyfluoroacrylate, fluorination polystyrene and PFPE；The silicon-containing polymer includes poly- diformazan Radical siloxane；The fluorine silicon contained polymer includes trifluompropyl methyl polysiloxane；The polymerisable monomer (22) includes trimethylolpropane trimethacrylate.
- 4. the preparation method of quantum diffusion film as claimed in claim 1, it is characterised in that the quantum material (23) is photic Luminescent quantum material；The quantum dot of the quantum material (23) including zero-dimension structural and one kind in the quantum rod of one-dimentional structure or It is a variety of；The quantum material (23) includes red quantum material and green quantum material.
- 5. the preparation method of quantum diffusion film as claimed in claim 1, it is characterised in that to the quantum material dispersed film (20) temperature heated is 50 DEG C~300 DEG C, and the heat time is 10min~300min.
- 6. the preparation method of quantum diffusion film as claimed in claim 1, it is characterised in that the multiple projection (50) is top Face be arcwall face cylinder, a diameter of 0.1 μm~1 μm of the cross section of the cylinder, it is the multiple projection (50) height Spend for 50nm~500nm.
- A kind of 7. quantum diffusion film, it is characterised in that including：Quantum material film body (40) and it is uniformly distributed in the quantum material Multiple raised (50) on film body (40) surface；Wherein, the material of the quantum material film body (40) includes the poly- of high crosslink density Compound (30) and the quantum material (23) being coated in the polymer (30) of the high crosslink density, the high crosslink density gather Compound (30) is polymerized by polymerisable monomer (22)；The material of the multiple projection (50) includes low surface energy polymeric molecule (21)。
- 8. quantum diffusion film as claimed in claim 7, it is characterised in that the low surface energy polymeric molecule (21) includes containing One or more in fluoropolymer, silicon-containing polymer and fluorine silicon contained polymer；The fluoropolymer includes poly- fluoropropenes One or more in acid esters, fluorination polystyrene and PFPE；The silicon-containing polymer includes dimethyl silicone polymer； The fluorine silicon contained polymer includes trifluompropyl methyl polysiloxane；The polymerisable monomer (22) includes trimethylolpropane trimethacrylate.
- 9. quantum diffusion film as claimed in claim 7, it is characterised in that the quantum material (23) is luminescence generated by light quantum material Material；The quantum material (23) includes the one or more in the quantum dot of zero-dimension structural and the quantum rod of one-dimentional structure；It is described Quantum material (23) includes red quantum material and green quantum material.
- 10. quantum diffusion film as claimed in claim 7, it is characterised in that the multiple projection (50) is that top surface is arc The cylinder in face, a diameter of 0.1 μm~1 μm of the cross section of the cylinder, the height of the multiple projection (50) is 50nm ~500nm.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948816A (en) * | 2018-06-27 | 2018-12-07 | 深圳市华星光电技术有限公司 | A kind of coating fluid, diffusion barrier and preparation method thereof |
| CN109694518A (en) * | 2018-12-27 | 2019-04-30 | 四川东方绝缘材料股份有限公司 | A kind of double-bond polymerization object quantum dot film and preparation method thereof |
| WO2020001612A1 (en) * | 2018-06-29 | 2020-01-02 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display apparatus |
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| CN112433278A (en) * | 2020-11-27 | 2021-03-02 | 宁波东旭成新材料科技有限公司 | Preparation method of novel light diffusion film |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW574110B (en) * | 2001-10-25 | 2004-02-01 | Matsushita Electric Works Ltd | Composite thin film holding substrate, transparent conductive film holding substrate, and panel light emitting body |
| CN101052902A (en) * | 2004-10-29 | 2007-10-10 | 3M创新有限公司 | Optical bodies and methods for making optical bodies |
| US20120156436A1 (en) * | 2010-12-15 | 2012-06-21 | Korea Institute Of Science And Technology | Color conversion luminescent sheet and fabrication method for the same |
| CN102736146A (en) * | 2012-06-30 | 2012-10-17 | 合肥乐凯科技产业有限公司 | Optical diffusion film and backlight module for liquid crystal display |
| CN103852817A (en) * | 2014-03-14 | 2014-06-11 | 宁波激智科技股份有限公司 | Quantum dot film applied to backlight module |
| CN104777669A (en) * | 2015-04-24 | 2015-07-15 | 张家港康得新光电材料有限公司 | Quantum dot film and backlight module |
| JP2017138558A (en) * | 2016-02-05 | 2017-08-10 | 大日本印刷株式会社 | Picture display unit |
| CN107089039A (en) * | 2017-04-24 | 2017-08-25 | 宁波东旭成新材料科技有限公司 | A kind of multi-functional quantum dot film and preparation method thereof |
-
2017
- 2017-08-31 CN CN201710773043.7A patent/CN107402416B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW574110B (en) * | 2001-10-25 | 2004-02-01 | Matsushita Electric Works Ltd | Composite thin film holding substrate, transparent conductive film holding substrate, and panel light emitting body |
| CN101052902A (en) * | 2004-10-29 | 2007-10-10 | 3M创新有限公司 | Optical bodies and methods for making optical bodies |
| US20120156436A1 (en) * | 2010-12-15 | 2012-06-21 | Korea Institute Of Science And Technology | Color conversion luminescent sheet and fabrication method for the same |
| CN102736146A (en) * | 2012-06-30 | 2012-10-17 | 合肥乐凯科技产业有限公司 | Optical diffusion film and backlight module for liquid crystal display |
| CN103852817A (en) * | 2014-03-14 | 2014-06-11 | 宁波激智科技股份有限公司 | Quantum dot film applied to backlight module |
| CN104777669A (en) * | 2015-04-24 | 2015-07-15 | 张家港康得新光电材料有限公司 | Quantum dot film and backlight module |
| JP2017138558A (en) * | 2016-02-05 | 2017-08-10 | 大日本印刷株式会社 | Picture display unit |
| CN107089039A (en) * | 2017-04-24 | 2017-08-25 | 宁波东旭成新材料科技有限公司 | A kind of multi-functional quantum dot film and preparation method thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI710832B (en) * | 2018-06-22 | 2020-11-21 | 友達光電股份有限公司 | Quantum dot display panel |
| CN108948816A (en) * | 2018-06-27 | 2018-12-07 | 深圳市华星光电技术有限公司 | A kind of coating fluid, diffusion barrier and preparation method thereof |
| US11294220B2 (en) | 2018-06-29 | 2022-04-05 | Boe Technology Group Co., Ltd. | Display panel and method for manufacturing same, and display device |
| WO2020001612A1 (en) * | 2018-06-29 | 2020-01-02 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display apparatus |
| CN110780486A (en) * | 2018-07-24 | 2020-02-11 | 纳米系统公司 | Method for improving display efficiency using quantum dots with integrated optics |
| CN110780486B (en) * | 2018-07-24 | 2024-08-20 | 昭荣化学工业株式会社 | Method for improving display efficiency using quantum dots with integrated optical elements |
| CN109694518B (en) * | 2018-12-27 | 2022-01-28 | 四川东方绝缘材料股份有限公司 | Double-bond polymer quantum dot film and preparation method thereof |
| CN109694518A (en) * | 2018-12-27 | 2019-04-30 | 四川东方绝缘材料股份有限公司 | A kind of double-bond polymerization object quantum dot film and preparation method thereof |
| CN112799247A (en) * | 2019-11-14 | 2021-05-14 | 京东方科技集团股份有限公司 | Liquid crystal display assembly, preparation method thereof and liquid crystal display |
| CN112799247B (en) * | 2019-11-14 | 2023-02-07 | 京东方科技集团股份有限公司 | Liquid crystal display assembly, preparation method thereof and liquid crystal display |
| CN110922963A (en) * | 2019-12-12 | 2020-03-27 | 泉州装备制造研究所 | A kind of quantum dot phosphor for visible light communication and preparation method thereof |
| CN112433278A (en) * | 2020-11-27 | 2021-03-02 | 宁波东旭成新材料科技有限公司 | Preparation method of novel light diffusion film |
| CN112433278B (en) * | 2020-11-27 | 2022-07-29 | 宁波东旭成新材料科技有限公司 | Preparation method of light diffusion film |
| CN114755859A (en) * | 2022-04-21 | 2022-07-15 | 深圳市兆纪光电有限公司 | MiniLED blue light prevention structure and assembling process thereof |
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