CN110105606A - Barrier film and preparation method thereof, quantum dot film and preparation method thereof, electronic device - Google Patents
Barrier film and preparation method thereof, quantum dot film and preparation method thereof, electronic device Download PDFInfo
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- CN110105606A CN110105606A CN201910328344.8A CN201910328344A CN110105606A CN 110105606 A CN110105606 A CN 110105606A CN 201910328344 A CN201910328344 A CN 201910328344A CN 110105606 A CN110105606 A CN 110105606A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7244—Oxygen barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Laminated Bodies (AREA)
Abstract
The invention discloses barrier films and preparation method thereof, quantum dot film and preparation method thereof, electronic device.Wherein, barrier film includes base and the network-like priming coat set on substrate surface, priming coat forms multiple grids with opening, and the barrier resins for obstructing steam or oxygen are filled in each grid, and at least part at the top of priming coat is not blocked resin covering.Network-like priming coat is introduced in the base of barrier film, barrier resins are filled in the grid of priming coat formation, to obtain the strong and weak alternate barrier layer of peeling force in base, the peel strength of barrier film greatly improved.
Description
Technical field
The present invention relates to quantum dot film and for the barrier film of quantum dot film.
Background technique
The partial size of quantum dot is typically in the range of between 1~10nm, since electrons and holes are by quantum confinement, continuous energy band knot
Structure becomes the discrete energy level structure with molecular characterization, and fluorescence can be emitted after being excited.Quantum dot has exciting light spectrum width and company
Continuous distribution, emission spectrum be narrow and the superior fluorescent characteristics such as symmetrical, Color tunable, photochemical stability are high, fluorescence lifetime is grown.It can
The size of quantum dot is controlled by chemically synthesized method, and then obtains the spectrum of different wave length, and can be equal by Control granularity
The method of even property controls half-peak breadth size, obtains the monochromatic light of pure color.
In being concentrated mainly on luminescence generated by light back light model setting technology, which can significantly mention the commercial applications of quantum dot at present
High colour gamut and color saturation, more and more display terminal product selections use technology of quantum dots.Current main product shape
Formula is Quantum Dot Glass pipe and quantum dot film, it is extremely sensitive to aqueous vapor and oxygen to be primarily due to quantum dot, and quantum dot size is got over
Small, specific surface area is bigger, higher to the sensibility of aqueous vapor and oxygen.Glass tube can effectively obstruct water oxygen, but process and transport
Defeated process is frangible, needs to increase independent die sinking expense, and as display technology develops towards Rimless direction, application increasingly by
Limitation.And quantum dot film has many advantages, such as the choosing of simple production process, bent, strong applicability as more and more display terminals
It selects.For quantum dot film mainly using upper and lower barrier film, the intermediate sandwich structure for quantum dot glue-line, traditional barrier film is poly-
Be deposited on the substrate of ester film, magnetron sputtering or vacuum chemistry deposition the methods of be laid with inorganic layer (generally silica or
Aluminium oxide), then in one layer of top coating of inorganic layer applied atop, on the one hand protect inorganic layer, on the other hand reduce barrier film
Surface roughness improves the adhesive force with glue.But obstruct that there is also following disadvantages using inorganic layer: (1) in order to guarantee
The bendable folding endurance of barrier film, inorganic layer are normally controlled in tens nanometer hereinafter, causing barriering effect poor；(2) using vapor deposition, magnetic
Control sputtering or vacuum chemistry deposition the methods of be laid with inorganic layer, equipment input cost is big, and the process is more complicated, and manufacturing cost compared with
It is high；(3) inorganic layer is likely to occur pin hole, causes Partial obturation to be deteriorated, and then lead to quantum point failure, causes bad point；4) with
The higher top coat material range of choice of inorganic material binding force is limited, and with most of quantum dispensing water poor adhesive force, need
It is coated with one layer of easy following layer, increases cost, and producing line yield is caused to decline；(5) there are peel strengths for traditional barrier film
Poor hidden danger, once peel strength weakens, water oxygen may penetrate into quantum dot layer from edge, lead to quantum point failure, invalid edges
Increase.
The shortcomings that in order to overcome inorganic barrier layer, also has replace inorganic barrier layer using organic barrier layer in the prior art,
But organic barrier layer is usually weak with the adhesion strength of substrate, under the conditions of high temperature and humidity, there is also easily peelable for organic barrier film
Hidden danger, while the water oxygen barriering effect of barrier film is influenced, quantum dot film side invalid edges increase, and then quantum dot film is caused to lose
Effect.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of barrier film that peel strength is high and its
Preparation method.
It is another object of the present invention to provide a kind of quantum dot films and preparation method thereof that peel strength is high.
According to an aspect of the present invention, a kind of barrier film for quantum dot film is provided, including base and is set to institute
The network-like priming coat of substrate surface is stated, the priming coat forms multiple grids with opening, is filled in each grid
For obstructing the barrier resins of steam or oxygen, at least part at the top of the priming coat is not covered by the barrier resins
Lid.
Each grid includes the restriction side wall for defining its own, the restriction in one of the embodiments,
The opening of the grid is defined at the top of side wall, the height at the barrier resins edge in at least partly described grid is no more than
The height of the adjacent restriction side wall.
The material of the priming coat is in polyurethane, polyacrylate, silane coupling agent in one of the embodiments,
It is one or more, it is preferable that the surface hardness of the priming coat be Shao A30~Shao D70.
The barrier resins are resistance oxygen resin in one of the embodiments, are selected from one or more of: polyethylene
Alcohol, ethylene-vinyl alcohol copolymer, cellulose acetate, polyvinylpyrrolidone, nitrocellulose；Or the barrier resins are
Material water-proof material is selected from one or more of: Vingon, polytrifluorochloroethylene, cyclic olefine copolymer, fluoride, second
Alkene-acetate ethylene copolymer.
According to another aspect of the present invention, a kind of preparation method of barrier film is also provided, comprising the following steps:
The first resin is arranged in A network-likely in a base, and being formed after first resin solidification has multiple grids
Network-like priming coat；
The second resin is arranged in B on the priming coat；
C enters second resin in each grid, and at least partly top of the priming coat is exposed；
D solidifies second resin, to form barrier resins.
In one of the embodiments, in the step A, the mode that first resin is arranged is silk-screen, prints or scrape
It applies；In the step B, the mode that second resin is arranged is silk-screen, printing or blade coating.
In one of the embodiments, in the step A, the viscosity of first resin is 10~10000cps, preferably
Ground, the viscosity of first resin are 30~1500cps.
In one of the embodiments, in the step B, the viscosity of second resin is 100~1500cps.
In one of the embodiments, in the step B, second resin, institute is arranged in whole face on the priming coat
Stating step C includes:
C1, second resin opposite with each grid enter in each grid；
C2 removes second resin extra at the top of the priming coat, so that at least partly top of the priming coat
Expose in portion.
According to another aspect of the present invention, a kind of quantum dot film is provided, including quantum dot layer and is set to the quantum
The film layer of point layer two sides, the quantum dot layer include quantum dot and the resin matrix for carrying the quantum dot, at least one film
Layer is present invention barrier film above-mentioned or is the barrier film that present invention method above-mentioned is prepared, the quantum dot layer and institute
State the top of the priming coat of barrier film at least part connection, the quantum dot layer also with the resistance in the grid
It is connected every resin.
According to another aspect of the present invention, a kind of preparation method of quantum dot film is provided, comprising the following steps:
S1 provides present invention barrier film above-mentioned；
Quantum dispensing water is set in the barrier film that S2, Yu Suoshu step S1 are provided, then in the quantum dispensing
The barrier film waterborne that a step S1 is set again and is provided；
S3 solidifies the quantum dot glue, forms quantum dot film.
According to another aspect of the present invention, a kind of electronic device, including present invention quantum dot film above-mentioned are provided.
Compared with prior art, the beneficial effects of the present invention are:
(1) network-like priming coat is introduced in the base of barrier film, and barrier resins are filled in the net of priming coat formation
In lattice, to obtain the strong and weak alternate barrier layer of peeling force in base, the peel strength of barrier film greatly improved；
(2) when the barrier film being applied to quantum dot film, the top of priming coat is also connect with quantum dot layer namely quantum dot
Strong and weak alternate joint face is formed between layer and barrier film, but also the peel strength of quantum dot film obtained is substantially improved；
(3) barrier resins in barrier film or quantum dot film can according to need the tree that selection blocks water or oxygen barrier effect is good
The strong applicability of rouge namely barrier film of the invention or quantum dot film；
(4) technique that priming coat of the invention such as can scrape at the technology maturations using silk-screen, printing, painting is formed, and is prepared into
This is cheap, and technique is relatively easy；
(5) stability of quantum dot film of the invention is good, and invalid edges are smaller after aging.
Detailed description of the invention
Figure 1A is the diagrammatic cross-section of one embodiment of barrier film of the invention；
Figure 1B is the diagrammatic cross-section of second embodiment of barrier film of the invention；
Fig. 1 C is the diagrammatic cross-section of the third embodiment of barrier film of the invention；
Fig. 1 D is the diagrammatic cross-section of the 4th embodiment of barrier film of the invention；
Fig. 2 is the top view of one embodiment of barrier film of the invention；
Fig. 3 A, which is shown, is provided with priming coat in base；
The schematic diagram of one embodiment of Fig. 3 B, 3C, 3D display as shown in Fig. 3 A semi-finished product preparation barrier films；
Fig. 3 E, 3F, 3G show the schematic diagram of another embodiment of the preparation barrier film of the semi-finished product as shown in Fig. 3 A；
Fig. 3 H, 3I show the schematic diagram of another embodiment of the preparation barrier film of the semi-finished product as shown in Fig. 3 A；
Fig. 4 is the diagrammatic cross-section of one embodiment of quantum dot film of the invention.
In figure: 10, barrier film；11, base；121, priming coat；120, grid；122, barrier resins；1201, side is limited
Wall；2, quantum dot layer.
Specific embodiment
In the following, being described further in conjunction with specific embodiment to the present invention, it should be noted that is do not collided
Under the premise of, new embodiment can be formed between various embodiments described below or between each technical characteristic in any combination.
In the description of the present invention, it should be noted that " transverse direction ", " vertical if any term " center " for the noun of locality
To ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top",
The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship are orientation based on the figure or position
Relationship is set, the narration present invention is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It constructs and operates with specific orientation, with particular orientation, should not be understood as limiting specific protection scope of the invention.
It should be noted that the term " first ", " second " etc. in the description and claims of this application are to be used for
Similar object is distinguished, without being used to describe a particular order or precedence order.It should be understood that the data used in this way are suitable
It can be interchanged in the case of, so as to embodiments herein described herein.In addition, term " includes " and " having " and they
Any deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, being
System, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or
For the intrinsic other step or units of these process, methods, product or equipment.
The present invention provides a kind of barrier film for quantum dot film, which has good peel strength, the barrier
When film is applied to quantum dot film, play the role of obstructing steam or oxygen.
As shown in fig. 1 a-2, barrier film 10 includes base 11 and the network-like priming coat 121 set on 11 surface of base, bottom
Coating 121 forms multiple grids 120 with opening, and the barrier resins for obstructing steam or oxygen are filled in each grid 120
122, at least part at the top of priming coat 121 is not blocked the covering of resin 122.Priming coat 121 and the formation of barrier resins 122
Barrier layer.
Priming coat 121 is typically employed in the material in base 11 with preferable adhesive force, so that priming coat 121 and base
Strong ties are formed between 11.Barrier resins 122 primarily serve the effect of barrier steam or oxygen, with the adhesive force between base 11
May be poor, just because of the presence of priming coat 121, so that the face between barrier layer and base 11 is connected as power alternately
Mode, in this way, being conducive to improve the peel strength of barrier film 10.
Barrier film 10 provided by the invention can obtain higher peel strength in the case where thinner thickness.
Further, since at least part at the top of priming coat 121 is not blocked the covering of resin 122, therefore, in barrier film
When other layers being arranged on 10, priming coat 121 can be with other layers then, to be conducive to make between the barrier film 10 and other layers
Peel strength with higher.
Base 11 can be but not limited to polyester film.
Priming coat 121 can be but not limited to polyurethane, acrylate, silane coupling agent.Preferably, priming coat 121
Surface hardness is between Shao A30 to Shao D70.
In some embodiments, barrier resins 122 are the preferable material of block-water performance, it is preferable that barrier resins 122 are non-
Polar polymer can be but not limited to Vingon, polytrifluorochloroethylene, cyclic olefine copolymer, fluoride and ethylene-vinegar
Sour ethylene copolymer.
In further embodiments, barrier resins 122 are the preferable material of oxygen resistance, it is preferable that barrier resins 122 are
Polar polymer can be but not limited to polyvinyl alcohol, ethylene-vinyl alcohol copolymer, cellulose acetate, polyvinylpyrrolidone
And nitrocellulose.
The embodiment that the cross section of grid 120 is square is shown in Fig. 2, grid 120 of the invention is not limited to figure
Shown in shape, the cross section of grid 120 can also be the shapes such as diamond shape, regular hexagon, circle, irregular polygon, respectively
The shape or size of grid 120 can be the same or different.
Further, each grid 120 includes the restriction side wall 1201 for defining its own, limits the top of side wall 1201
Define the opening of grid 120 in portion.
Further, the height at 122 edge of barrier resins at least partly in grid 120 is no more than adjacent restriction side wall
1201 height.The height at 122 edge of barrier resins is no more than the height of adjacent restriction side wall 1201, so that the restriction
The top of side wall 1201 is exposed, later when being arranged other layers in the barrier film 10, it is ensured that the top of the restriction side wall 1201
Portion is connect with other layers, to improve the peeling force of barrier film 10 Yu other layers.
In some embodiments, as shown in Figure 1A, the height of the upper surface of barrier resins 122 is lower than restriction side wall 1201
Highly namely the top of priming coat 121 protrudes from barrier resins 122.
In further embodiments, such as Figure 1B, the height of 122 upper surface of barrier resins and the height base for limiting side wall 1201
This identical namely priming coat 121 top and the upper surface of barrier resins 122 form substantially smooth plane.
In further embodiments, the upper surface of the barrier resins 122 in each grid 120 is in and raises upward (such as Fig. 1 C institute
Show) or to recessed (not shown) arcwall face, the height at 122 edge of barrier resins in grid 120, which is no more than, limits side
The height of wall 1201.Preferably, the height at 122 middle part of barrier resins in grid 120 is also no more than the height for limiting side wall 1201
Degree.
In further embodiments, barrier resins 122 are also covered on a part of restriction in addition to being filled in each grid 120
The top of side wall 1201, as shown in figure iD namely the atop part of priming coat 121 is blocked the covering of resin 122.
The present invention also provides a kind of preparation methods of barrier film 10, comprising the following steps:
The first resin is arranged in A network-likely in a base, and being formed after the first resin solidification has multiple grids 120
Network-like priming coat 121, as shown in Figure 3A；
The second resin is arranged in B on priming coat 121, as shown in Fig. 3 B or 3E or 3H；
C enters the second resin in each grid 120, and at least partly top of priming coat 121 is exposed, such as Fig. 3 D
Or shown in 3G or 3I；
D solidifies the second resin, to form barrier resins 122.
In step A, the mode of the first resin of setting can be but not limited to: silk-screen, printing or blade coating.In step B, setting
The mode of second resin can be but not limited to: silk-screen, printing or blade coating.The curing mode of first resin and the second resin can
To be but not limited to: heat cure, photocuring.
It is noted that above-mentioned first resin and the second resin may each be resin compound, it can in resin compound
It may include solvent to include one or more resins, in resin compound can not also include solvent.First resin and
The viscosity of two resins should not be too large, and otherwise its levelability is poor, and the viscosity of the first resin and the second resin is also unsuitable too small, no
Then its curing time is longer.
In some embodiments, in step A, the viscosity of the first resin is 10~10000cps, it is preferable that the first resin
Viscosity is 30~1500cps.
In some embodiments, in step B, the viscosity of the second resin is 100~1500cps.
In some embodiments, as shown in Fig. 3 B, 3C, 3D, in step B, the second tree is arranged in whole face on priming coat 121
Rouge in step C, is made it into each grid 120, thus at least partly top of priming coat 121 using the mobility of the second resin
Expose in portion.In this embodiment, the dosage of the second resin is less, and second resin opposite with grid 120 directly falls into grid 120
Interior, second resin opposite with 121 top surface of priming coat then utilizes the mobility of its own, flows into grid 120, such as Fig. 3 C
It is shown, so that at least partly top of priming coat 121 is exposed.
In further embodiments, in step B, as shown in FIGURE 3 E, the second resin, step is arranged in whole face on priming coat 121
Suddenly C includes:
C1, second resin opposite with each grid 120 enter in each grid 120, as illustrated in Figure 3 F；
C2 removes the second extra resin of 121 top of priming coat, so that at least partly top of priming coat 121 is exposed,
As shown in Figure 3 G.
In further embodiments, as shown in Fig. 3 H, 3I, in step B, the second resin is directly printed into grid 120.
As shown in figure 4, the present invention also provides a kind of quantum dot film, including quantum dot layer 2 and it is set to 2 two sides of quantum dot layer
Film layer, an at least film layer is above-mentioned barrier film 10, and barrier film 10 includes base 11 and set on the network-like of 11 surface of base
Priming coat 121, priming coat 121 form multiple grids 120 with opening, in each grid 120 filled with for obstruct steam or
The barrier resins 122 of oxygen, at least part at the top of priming coat 121 are not blocked the covering of resin 122, quantum dot layer 2 and resistance
At least part at the top of the priming coat 121 of diaphragm 10 connects, and quantum dot layer 2 also connects with the barrier resins 122 in grid 120
It connects.
Quantum dot layer 2 is usually made by the glue for being dispersed with quantum dot, and the glue and priming coat 121 are usually strong ties,
It is Weak link with barrier resins 122, therefore the face connection between quantum dot layer 2 and barrier film 10 also forms strong and weak alternate side
Formula, so that the peel strength between quantum dot layer 2 and barrier film 10 is high.
In some embodiments, the film layer of 2 two sides of quantum dot layer is barrier film 10.
The present invention also provides a kind of preparation methods of quantum dot film, comprising the following steps:
S1 provides aforementioned barrier film 10；
S2, in quantum dispensing water is arranged in a barrier film 10, then in a barrier film 10 is arranged on quantum dot glue again；
S3 solidifies quantum dispensing water, forms quantum dot film.
It is noted that quantum dot glue is the glue for being dispersed with quantum dot, curing mode can be but not limited to heat
Solidification, photocuring.
Quantum dot glue is firstly provided in a barrier film 10, due to the mobility of quantum dot glue, it is ensured that quantum
Point glue and the barrier layer 12 of barrier film 10 come into full contact with, on the one hand, the top surface of quantum dot glue and priming coat 121 then, separately
On the one hand, quantum dot glue and 122 surface of barrier resins be then.It is noted that if barrier resins 122 are not filled by netful lattice
120, then part quantum dispensing water enters in grid 120, then with barrier resins 122.
Then before quantum dot glue curing, another barrier film 10 is set on quantum dot glue, is applied certain
After pressure, it is ensured that quantum dot glue also comes into full contact with the barrier film 10 above it.It is formed after quantum dot glue curing
Quantum dot layer is respectively formed strong and weak alternate face with the barrier film 10 of its two sides and connect, so that the stripping of quantum dot film of the invention
The quantum dot film more traditional from intensity is substantially improved.
The present invention also provides a kind of electronic devices comprising above-mentioned quantum dot film.The electronic device can be but not limited to
Liquid crystal display, OLED display, QLED display, electroluminescent or photic illuminating device etc..
[embodiment 1]
Prepare barrier film:
The first resin that network-like setting viscosity is 1500cps on a base (PET), the first resin includes poly- ammonia
Other auxiliary agents such as ester, ethyl acetate solvent and levelling agent are formed with a thickness of 5 μm of priming coats, priming coat after the first resin solidification
Grid with multiple size uniformities, the cross section of grid are in regular hexagon；
With a thickness of 4 μm of the second resin after whole face setting solidify on priming coat, the viscosity of the second resin is 100cps, the
Two resins include other auxiliary agents such as polyvinyl alcohol, ethyl acetate solvent and levelling agent；
After second resin enters each grid, the second resin extra above priming coat is scraped off, the second resin is then solidified, made
Obtain barrier film.
Prepare quantum dot film:
Quantum dispensing water is set in barrier film obtained above, it is above-mentioned obtained to be then arranged one again on quantum dot glue
Barrier film, then solidify quantum dispensing water, obtain quantum dot film.
Above-mentioned quantum dot glue is the UV glue based on acrylate copolymer, and wherein red quantum dot and green quantum dot contain
Amount about 0.5%~3%, acrylic monomer content 20%, acrylate copolymer content is 70%, other auxiliary agent contents are about
7%~9.5%.
The shore hardness for measuring the priming coat of the barrier film of embodiment 1 is Shao A30.Measure the quantum dot film of embodiment 1
Peel strength > 15N/cm, invalid hem width degree < 0.6mm after aging under the conditions of 60 DEG C and 90%RH.
[embodiment 2]
Prepare barrier film:
The first resin that network-like setting viscosity is 30cps on a base (PET), the first resin includes polyacrylic acid
Ester, dimethylbenzene and butanol solvent and other auxiliary agents are formed with a thickness of 3 μm of priming coats after the first resin solidification, and priming coat has
The cross section of the grid of multiple size uniformities, grid assumes diamond in shape；
With a thickness of 2.5 μm of the second resin after whole face setting solidifies on priming coat, the viscosity of the second resin is
1500cps, the second resin include polyvinyl alcohol, ethyl acetate solvent and other auxiliary agents；
After second resin enters each grid, the second resin extra above priming coat is scraped off, the second resin is then solidified, made
Obtain barrier film.
Prepare quantum dot film:
Quantum dispensing water is set in barrier film obtained above, it is above-mentioned obtained to be then arranged one again on quantum dot glue
Barrier film, then solidify quantum dispensing water, obtain quantum dot film.Quantum dot glue of the quantum dot glue with embodiment 1.
The shore hardness for measuring the priming coat of the barrier film of embodiment 1 is Shao D70.Measure the quantum dot film of embodiment 2
Peel strength > 15N/cm, invalid hem width degree < 0.5mm after aging under the conditions of 60 DEG C and 90%RH.
[comparative example 1]
Be commercialized barrier film: it is 0.2~1 μm of polyester priming coat that a layer thickness is coated i.e. on a base (PET), passes through steaming
Plating obtains SiOxInorganic barrier layer, thickness about 40~60nm, is coated the urethane topcoat of one layer of 0.5~5 μ m thick, is made
Barrier film.
Prepare quantum dot film:
Quantum dispensing water is set in above-mentioned barrier film, then a barrier obtained above is set again on quantum dot glue
Then film solidifies quantum dispensing water, obtains quantum dot film.Quantum dot glue of the quantum dot glue with embodiment 1.
The peel strength for measuring the quantum dot film of comparative example 1 is 3N/cm, invalid hem width degree about 0.8mm after aging.
[comparative example 2]
Prepare barrier film:
With a thickness of 5.5 μm of the second resin after whole face setting solidifies on a base (PET), the viscosity of the second resin is
500cps, the second resin include polyvinyl alcohol, ethyl acetate solvent and other auxiliary agents, solidify the second resin, barrier film is made.
Prepare quantum dot film:
Quantum dispensing water is set in barrier film obtained above, it is above-mentioned obtained to be then arranged one again on quantum dot glue
Barrier film, then solidify quantum dispensing water, obtain quantum dot film.Quantum dot glue of the quantum dot glue with embodiment 1.
The peel strength for measuring the quantum dot film of comparative example 2 is 0.3N/cm, invalid after aging under the conditions of 60 DEG C and 90%RH
Hem width degree is 2mm.
[comparative example 3]
Prepare barrier film:
With a thickness of 5 μm of the first resin after whole face setting solidifies on a base (PET), the first resin include polyurethane,
Solvent and other auxiliary agents；
With a thickness of 4 μm of the second resin after whole face setting solidify on priming coat, the viscosity of the second resin is 600cps, the
Two resins include polyvinyl alcohol, ethyl acetate solvent and other auxiliary agents, solidify the second resin, and barrier film is made；
Prepare quantum dot film:
Quantum dispensing water is set in barrier film obtained above, it is above-mentioned obtained to be then arranged one again on quantum dot glue
Barrier film, then solidify quantum dispensing water, obtain quantum dot film.Quantum dot glue of the quantum dot glue with embodiment 1.
The peel strength for measuring the quantum dot film of comparative example 3 is 1N/cm, invalid edges after aging under the conditions of 60 DEG C and 90%RH
For 1.5mm.
In the above various embodiments and comparative example, the test method of peel strength refers to GB/T2792-1998, pressure-sensitive adhesive
180 ° of peeling strength test methods of band.
The test method of degradation are as follows: the detection method of ageing stability be mainly included in the illumination of high temperature blue light (70 DEG C,
0.3 W/cm2), under the aging conditions such as high temperature and humidity (65 DEG C/95%RH) and high-temperature storage (85 DEG C), detect the stripping of quantum dot film
From power, high temperature and humidity (65 DEG C/95%RH) invalid edges situation afterwards.
Table 1 lists the peeling force of the above various embodiments and comparative example and the invalid hem width degree after aging.
Table 1
| It removes force value (N/cm) | Invalid edges (mm) (after 65 DEG C/95%RH aging 1000h) | |
| Embodiment 1 | >15 | <0.6 |
| Embodiment 2 | >15 | <0.5 |
| Comparative example 1 | 2 | >1 |
| Comparative example 2 | 0.3 | 2 |
| Comparative example 3 | 1 | 1.5 |
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (12)
1. a kind of barrier film for quantum dot film, which is characterized in that including base and set on the network of the substrate surface
Shape priming coat, the priming coat form multiple grids with opening, are filled in each grid for obstructing steam or oxygen
The barrier resins of gas, at least part at the top of the priming coat are not covered by the barrier resins.
2. the barrier film according to claim 1 for quantum dot film, which is characterized in that each grid includes being used for
Define the restriction side wall of its own, it is described to limit the opening that the grid is defined at the top of side wall, in at least partly described grid
The barrier resins edge height be no more than the adjacent restriction side wall height.
3. the barrier film according to claim 1 or 2 for quantum dot film, which is characterized in that the material of the priming coat
Selected from one of polyurethane, polyacrylate, silane coupling agent or a variety of, it is preferable that the surface hardness of the priming coat is
Shao A30~Shao D70.
4. the barrier film according to claim 1 or 2 for quantum dot film, which is characterized in that the barrier resins are resistance
Oxygen resin is selected from one or more of: polyvinyl alcohol, ethylene-vinyl alcohol copolymer, cellulose acetate, polyvinyl pyrrole
Alkanone, nitrocellulose；Or the barrier resins are material water-proof material, be selected from one or more of: Vingon gathers
Chlorotrifluoroethylene, cyclic olefine copolymer, fluoride, ethylene-vinyl acetate copolymer.
5. a kind of preparation method of barrier film, which comprises the following steps:
A is arranged the first resin network-likely in a base, forms the net with multiple grids after first resin solidification
Network shape priming coat；
The second resin is arranged in B on the priming coat；
C enters second resin in each grid, and at least partly top of the priming coat is exposed；
D solidifies second resin, to form barrier resins.
6. the preparation method of barrier film according to claim 5, which is characterized in that in the step A, setting described first
The mode of resin is silk-screen, printing or blade coating；In the step B, the mode that second resin is arranged is silk-screen, prints or scrape
It applies.
7. the preparation method of barrier film according to claim 5, which is characterized in that in the step A, first resin
Viscosity be 10~10000cps, it is preferable that the viscosity of first resin be 30~1500cps.
8. the preparation method of barrier film according to claim 5, which is characterized in that in the step B, second resin
Viscosity be 100~1500cps.
9. the preparation method of barrier film according to claim 5, which is characterized in that in the step B, in the priming coat
Second resin is arranged in upper whole face, and the step C includes:
C1, second resin opposite with each grid enter in each grid；
C2 removes second resin extra at the top of the priming coat, so that at least partly top dew of the priming coat
Out.
10. a kind of quantum dot film, the film layer including quantum dot layer and set on the quantum dot layer two sides, the quantum dot layer packet
It includes quantum dot and carries the resin matrix of the quantum dot, which is characterized in that at least one film layer is that claim 1-4 is any
The barrier film or the barrier film being prepared for any method of claim 5-9, the quantum dot layer and institute
State the top of the priming coat of barrier film at least part connection, the quantum dot layer also with the resistance in the grid
It is connected every resin.
11. a kind of preparation method of quantum dot film, which comprises the following steps:
S1 provides the barrier film as described in claim 1-4 is any, or provides by any method of claim 5-9
The barrier film of preparation；
Quantum dispensing water is set in the barrier film that S2, Yu Suoshu step S1 are provided, then on the quantum dot glue
The barrier film that the one step S1 is provided is set again；
S3 solidifies the quantum dot glue, forms quantum dot film.
12. a kind of electronic device, which is characterized in that including quantum dot film as claimed in claim 10 or by claim 11 institute
The quantum dot film for the method preparation stated.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046005A (en) * | 2019-12-26 | 2021-06-29 | 致晶科技（北京）有限公司 | Composite material and preparation method and application thereof |
| CN113448120A (en) * | 2020-03-27 | 2021-09-28 | 拓米(成都)应用技术研究院有限公司 | Color-changing film and method for producing same |
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|---|---|---|---|---|
| JP2017040834A (en) * | 2015-08-21 | 2017-02-23 | コニカミノルタ株式会社 | Optical sheet and method for producing optical sheet |
| CN106842702A (en) * | 2017-01-23 | 2017-06-13 | 厦门天马微电子有限公司 | Quantum dot diaphragm, its preparation method and its backlight module and liquid crystal display |
| CN107861181A (en) * | 2017-12-04 | 2018-03-30 | 福州大学 | A kind of quantum dot color filter and preparation method thereof |
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|---|---|---|---|---|
| JP2017040834A (en) * | 2015-08-21 | 2017-02-23 | コニカミノルタ株式会社 | Optical sheet and method for producing optical sheet |
| CN106842702A (en) * | 2017-01-23 | 2017-06-13 | 厦门天马微电子有限公司 | Quantum dot diaphragm, its preparation method and its backlight module and liquid crystal display |
| CN107861181A (en) * | 2017-12-04 | 2018-03-30 | 福州大学 | A kind of quantum dot color filter and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113046005A (en) * | 2019-12-26 | 2021-06-29 | 致晶科技（北京）有限公司 | Composite material and preparation method and application thereof |
| CN113448120A (en) * | 2020-03-27 | 2021-09-28 | 拓米(成都)应用技术研究院有限公司 | Color-changing film and method for producing same |
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