CN106707373B - A kind of high briliancy high-stiffness reflectance coating and preparation method thereof - Google Patents
A kind of high briliancy high-stiffness reflectance coating and preparation method thereof Download PDFInfo
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- CN106707373B CN106707373B CN201510790204.4A CN201510790204A CN106707373B CN 106707373 B CN106707373 B CN 106707373B CN 201510790204 A CN201510790204 A CN 201510790204A CN 106707373 B CN106707373 B CN 106707373B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
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Abstract
The present invention relates to optical film technology field more particularly to a kind of backlight module high briliancy high-stiffness reflectance coatings and preparation method thereof.Light guide plate can be scratched in use in order to solve the problem of in existing display that reflectance coating deflection is not high, and the present invention provides a kind of high briliancy high-stiffness reflectance coating and preparation method thereof.The high briliancy high-stiffness reflectance coating is made of reflecting layer, hardened layer, coated particle layer；The upper surface in the reflecting layer is coated with coated particle layer, and the lower surface in the reflecting layer is coated with hardened layer；The coated particle layer includes binder resin and diffusion particle, and the diffusion particle is bonded in the surface in reflecting layer by binder resin；The diffusion particle includes bulky grain and little particle, and the short grained grain size is 1 10 μm；The grain size of the bulky grain is 30 60 μm.Reflectance coating provided by the invention has higher deflection, and does not adhere to light guide plate, will not generate scratch to light guide plate.
Description
Technical field
The present invention relates to optical film technology field more particularly to a kind of high briliancy high-stiffness reflectance coating of backlight module and
Preparation method.
Background technology
Display backlight module includes light source, light guide plate, reflectance coating, brightness enhancement film, diffusion barrier etc., the wherein work of reflectance coating
With being efficiently to be reflected back the light that light guide plate bottom leaks out in system as far as possible, to improve the utilization rate of light, energy is reduced
Consumption.
For fast-developing liquid crystal display reflectance coating, it is desirable that improve the reflection of reflectance coating while cost effective
Characteristic.If the brightness of backlight can be improved by improving the reflection characteristic of reflectance coating, so that it may to reduce cost.It is traditional anti-
Film is penetrated due to internal foaming structure, mechanical performance is not ideal enough, using easily collapsing in Large-Sized Backlight System, especially
It is that the field placed vertically in needs such as television set, liquid crystal displays is particularly acute.
In addition, due to reflectance coating product surface all smoothers of existing market mainstream, process meeting is used in backlight module
Light guide plate is adhered to, and scratch can be generated to light guide plate.
Invention content
Light guide plate can be scratched in use in order to solve the problem of in existing display that reflectance coating deflection is not high, this
A kind of high briliancy high-stiffness reflectance coating of invention offer and preparation method thereof.Reflectance coating provided by the invention has higher deflection,
It is not collapsed when being used in large-sized monitor backlight module, and does not adhere to light guide plate, scratch will not be generated to light guide plate.
Also, the reflected light briliancy of reflectance coating provided by the invention is evenly, further improves the briliancy and its uniformity of reflectance coating.
In order to solve the above-mentioned technical problem, the present invention uses following technical proposals：
The present invention provides a kind of high briliancy high-stiffness reflectance coating, and the high briliancy high-stiffness reflectance coating is by reflecting layer, hardening
Layer, coated particle layer composition；The upper surface in the reflecting layer is coated with coated particle layer, and the lower surface in the reflecting layer is coated with
Hardened layer；The coated particle layer includes binder resin and diffusion particle, and the diffusion particle is bonded in instead by binder resin
Penetrate the surface of layer；The diffusion particle includes bulky grain and little particle, and the short grained grain size is 1-10 μm；The bulky grain
Grain size be 30-60 μm.
Further, the reflecting layer is ABA three-deckers.Wherein, A layers of thickness accounts for the 10- of reflecting layer overall thickness
20%, B layers of thickness accounts for the 80-90% of reflecting layer overall thickness.
Further, in the reflecting layer, A layers of the thickness accounts for the 10% of reflecting layer overall thickness, B layers of the thickness
Account for the 90% of reflecting layer overall thickness.
Further, the reflecting layer has abscess.Further, the thickness in the reflecting layer is 170 μm.
Further, in the high briliancy high-stiffness reflectance coating, the reflecting layer includes following components：Polyester resin
60-80%, incompatible vector resin 10-20% and inorganic particulate 10-20%, the percentage are weight percentage.
Further, in the high briliancy high-stiffness reflectance coating, the reflecting layer includes following components：
Polyester resin 66-74%,
Inorganic particulate 13-17%,
Incompatible vector resin 13-17%, the percentage are weight percentage.
Further, in the reflecting layer, the polyester resin is selected from polyethylene terephthalate, is poly- to benzene two
One kind in formic acid butanediol ester, polyethylene naphthalate.
Further, in the reflecting layer, the polyester resin is preferably PET.Polyester resin is cut using film-grade polyester
Piece.
Further, in the reflecting layer, the inherent viscosity of the polyester resin is 0.68-0.80dL/g.
Further, in the reflecting layer, the inorganic particulate is selected from SiO2Particle, TiO2Particle, BaSO4Particle, Al2O3
One kind in particle or at least two combination, the grain size of the inorganic particulate is 0.1-2.0 μm.
Further, the inorganic particulate is by surface treatment.
Further, in the high briliancy high-stiffness reflectance coating, the inorganic particulate is selected from barium sulfate, rutile
The combination of one or both in type titanium dioxide.
Further, in the high briliancy high-stiffness reflectance coating, the hardening layer material includes ultraviolet-curing resin
Glue and ultra-violet curing agent.
Further, in the high briliancy high-stiffness reflectance coating, the thin hardened layer is 10-18 μm.
Further, in preparation process, the material of the hardened layer is first configured to hardened layer coating fluid, the hardened layer
Coating fluid includes following components：
Ultraviolet-curing resin glue (UV glue) 45%,
Ultra-violet curing agent (UV curing agent) 15%,
Solvent 40%；The percentage is weight percentage.
The ultraviolet-curing resin glue selects acrylic resin, the ultra-violet curing agent to select epoxy resin cure
Agent, the solvent are acetone and n-butyl acetate mixed solvent, and the mass ratio of acetone and butyl acetate is 1:2.
Further, in the hardened layer, the ultraviolet-curing resin glue selects acrylic resin.
Further, in the coated particle layer, the diffusion particle is selected from polymethyl methacrylate particle, polyester grain
Son, makrolon particle or one kind in polystyrene particle or at least two combination.
Further, the diffusion particle is polymer particle, and the optical index of the polymer particle material is 1.3-
1.7。
Further, in the high briliancy high-stiffness reflectance coating, the bulky grain grain size is 30-40 μm, little particle grain
Diameter is 4-8 μm.
Further, in the high briliancy high-stiffness reflectance coating, the bulky grain grain size is 30-35 μm, little particle grain
Diameter is 6-8 μm.
Further, in the high briliancy high-stiffness reflectance coating, the coated particle layer includes following components：
Binder resin 50%,
Bulky grain 10%-40%,
Little particle 10%-40%；The percentage is weight percentage.
Further, the coated particle layer includes following components：
Binder resin 50%, bulky grain 15%-25%, little particle 25-35%.
Further, in preparation process, the raw material of the coated particle layer is first configured to diffusion coating fluid, the diffusion
Coating fluid includes following components：
Binder resin 25%,
Bulky grain 5%-20%,
Little particle 5%-20%,
Solvent 50%；The percentage is weight percentage.
Further, the binder resin selects polyacrylic resin.
Further, in the coated particle layer of the high briliancy high-stiffness reflectance coating, the coated particle layer includes
Following components：Binder resin 50%, bulky grain 15%-25%, little particle 25-35%；Bulky grain grain size is 30-35 μm, small
Grain grain size is 6-8 μm；The thin hardened layer is 10-18 μm.
Further, in the high briliancy high-stiffness reflectance coating, the reflector thickness accounts for the 70%- of overall film thickness
85%；The thin hardened layer accounts for the 5%-10% of overall film thickness, and the coating thickness accounts for the 10%- of overall film thickness
20%.
Further, the thin hardened layer accounts for the 7% of overall film thickness, and the reflecting layer accounts for overall film thickness
75%；The coating layer accounts for the 18% of overall film thickness.
Further, the overall thickness of the reflectance coating is 100-300 μm.
Further, in the high briliancy high-stiffness reflectance coating, polyester resin is PET in the reflecting layer, and content is
66-74%, incompatible vector resin select polyolefin, content 13-17%, inorganic particulate to select rutile type titanium white, contain
Amount is 13-17%.The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for the 10- of reflecting layer overall thickness
20%, B layers of thickness accounts for the 80-90% of reflecting layer overall thickness.The hardened layer includes ultraviolet-curing resin glue and ultraviolet solid
Agent, the ultraviolet-curing resin glue select acrylic resin, content 70-80%, the ultra-violet curing agent to select epoxy
Resin curing agent, content 20-30%；The percentage is weight percentage.
Further, in the high briliancy high-stiffness reflectance coating, polyester resin is PET in the reflecting layer, and content is
70%, incompatible vector resin selects polyolefin, content 15%, and inorganic particulate selects the rutile type titanium white, content to be
15%；The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for the thickness of 10%, the B layers of reflecting layer overall thickness
Account for the 90% of reflecting layer overall thickness.The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, the ultra-violet curing
Resin glue selects acrylic resin, content 75%, the ultra-violet curing agent to select epoxy curing agent, content 25%.
The present invention also provides a kind of preparation method of the high briliancy high-stiffness reflectance coating, the preparation method includes such as
Lower step：
(1) reflecting layer is prepared, inorganic particulate masterbatch resin is first prepared, inorganic particulate is mixed with some polyesters resin material
It is granulated, inorganic particulate masterbatch resin is made；Later, by the raw material in reflecting layer using three-layer co-extruded carry out slab, longitudinal stretching is horizontal
To stretching, thermal finalization is cooling, draws, and winds, and cutting obtains the reflecting layer；
(2) it is coated with one layer of hardened layer online in the one side in reflecting layer, is placed in 100 DEG C -120 DEG C dry 1min- in baking oven
2min；
(3) use wet coating mode, by the coating solution containing diffusion particle prepared reflectance coating another side,
Use high-pressure sodium lamp with 700-900mj/cm2Irradiation solidification, forms coated particle layer.
Further, in above-mentioned steps (2), esters of acrylic acid glue, curing agent are weighed according to the ratio, and solvent uses blender
It is coated onto in the one side of reflectance coating after mixing；Reflectance coating after coating hardened layer is placed in 100 DEG C of -120 DEG C of dryings in baking oven
1min-2min then uses high-pressure sodium lamp with 700-900mj/cm2Irradiation solidification.Further, high-pressure sodium lamp is with 800mj/cm2
Irradiation solidification.
Further, it in above-mentioned steps (3), is uniformly mixed diffusion particle to form diffusion coating, gained with binder resin
Diffusion coating is uniformly mixed with diluent is made coating fluid.
Compared with the reflectance coating being currently used in display backlight module, high briliancy high-stiffness reflectance coating provided by the invention
There is higher reflectivity, briliancy and deflection simultaneously.The protrusion structure that bulky grain particle is formed has focusing light effect, and does not adhere to
Light guide plate will not generate scraping to light guide plate；Little particle particle plays scattering process, and being used cooperatively for size particles effectively improves
The uniformity of the brightness and reflected light briliancy of backlight.The addition of hardened layer improves the deflection of reflectance coating, for big ruler
It is not easy to collapse when very little display screen, comprehensive performance is preferable, applied widely.
Description of the drawings
Fig. 1 is the structural schematic diagram of high briliancy high-stiffness reflectance coating provided by the invention.
In figure：1 is little particle, and 2 be bulky grain, and 3 be inorganic particulate, and 4 be abscess, and 5 be hardened layer, and 6 be reflecting layer, and 7 are
Coated particle layer.
Specific implementation mode
As shown in Figure 1, the present invention provides a kind of high briliancy high-stiffness reflectance coating, the reflectance coating is by reflecting layer 6, hardened layer
5, coated particle layer 7 forms；The upper surface in the reflecting layer 6 is coated with coated particle layer 7, and the lower surface in the reflecting layer 6 applies
It is furnished with hardened layer 5；The coated particle layer 7 includes binder resin and diffusion particle, and the diffusion particle is viscous by binder resin
It ties on the surface in reflecting layer 6；The diffusion particle includes bulky grain 2 and little particle 1.The reflecting layer 6 is ABA three-deckers.
The reflecting layer has abscess 4.The reflecting layer includes polyester resin and inorganic particulate 3.
A kind of preparation method of high briliancy high-stiffness reflectance coating provided by the invention includes the following steps：
(1) inorganic particulate masterbatch resin is prepared, by inorganic particulate and vector resin material mixing granulation, inorganic particulate is made
Masterbatch resin；Using three-layer co-extruded carry out slab, longitudinal stretching, cross directional stretch, thermal finalization is cooling, draws, and winds, and cutting obtains
To the reflecting surface thin layer.
(2) it is coated with one layer of hardened layer online in the one side in reflecting layer, is placed in 100 DEG C -120 DEG C dry 1min- in baking oven
2min。
(3) using wet coating mode, the another side by the coating solution containing scattering particles prepared in reflecting layer,
Use high-pressure sodium lamp with 700-900mj/cm2Irradiation solidification.
The reflectance coating that the present invention is prepared is tested by the following method：
Reflectivity：According to GB/T3979-2008 standards, using ColorQuest XE spectrophotometric color measurement instruments, (Hunterlab is public
Department's system), under D65 light conditions, by its reflectivity of d/8 ° of structured testing of integrating sphere, reflectivity data is that 400-700nm is every
Every the weighted average of the reflectivity of 10nm wavelength, weights correspond to the energy distribution curve of D65 light sources.
Deflection：Reflectance coating long 40cm, wide 5cm are taken, 5kg counterweights are pushed down to one end of reflectance coating, other end stretches out desktop
Side 30cm, the horizontal distance for measuring film end and vertical table surface is deflection.It is longer to measure obtained horizontal distance, i.e. numerical value
It is higher, illustrate that the deflection of reflectance coating is better.
Briliancy：The BM-7 brightness photometers that general health Topcon is opened up using Japan test briliancy.
Scraping to light guide plate：Multi-ply paper or hard object simulation backlight module bottom backboard are pasted on marble countertop, it will be anti-
It penetrates piece to be placed on table top, the light guide plate of ink printing is covered on reflector plate.It is placed on above light guide plate with load 3kg weights, uses glue
The fixed weight of band and light guide plate, keep reflector plate motionless, and transverse reciprocating pulls weight 10 times, observes the ink site of light guide plate,
Define rank 1：The ink site of light guide plate is almost without being scraped；2：Ink site has to be scraped on a small quantity；3：Ink site is several
All it is scraped.
Embodiment 1
High briliancy high-stiffness reflectance coating provided by the invention, the high briliancy high-stiffness reflectance coating by reflecting layer, hardened layer,
Coated particle layer forms；The upper surface in the reflecting layer is coated with coated particle layer, and the lower surface in the reflecting layer is coated with firmly
Change layer；The coated particle layer includes binder resin and diffusion particle, and the diffusion particle is bonded in reflection by binder resin
The surface of layer；The diffusion particle includes bulky grain and little particle.Wherein, the thin hardened layer is 15 μm, the reflecting layer
Thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%, bulky grain 10%, 40 μm of grain size,
Little particle 40%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 2
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 15%, 40 μm of grain size,
Little particle 35%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 3
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 20%, 40 μm of grain size,
Little particle 30%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 4
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 25%, 40 μm of grain size,
Little particle 25%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 5
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 30%, 40 μm of grain size,
Little particle 20%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 6
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 10%, 30 μm of grain size,
Little particle 40%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 7
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 15%, 30 μm of grain size,
Little particle 35%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 8
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 20%, 30 μm of grain size,
Little particle 30%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 9
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 25%, 30 μm of grain size,
Little particle 25%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 10
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 30%, 30 μm of grain size,
Little particle 20%, 4 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 11
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 25%, 30 μm of grain size,
Little particle 25%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 12
The high briliancy high-stiffness reflectance coating provided such as embodiment 1, wherein
The thin hardened layer is 15 μm, and the reflector thickness is 170 μm, and the overall thickness of the reflectance coating is 225 μm.
Polyester resin is PET in the reflecting layer, content 70%, and incompatible vector resin selects the polyolefin, content to be
15%, inorganic particulate selects rutile type titanium white, content 15%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 10%, the B layers of reflecting layer overall thickness
Thickness accounts for the 90% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 25% are selected in olefin(e) acid resinoid, content 75%, the ultra-violet curing agent；
The coated particle layer includes following components：
Binder resin 50%,
Bulky grain 25%, 30 μm of grain size,
Little particle 25%, 8 μm of grain size.
The binder resin is acrylate, and diffusion particle is polymethyl methacrylate (PMMA) particle.Correlated performance
It is shown in Table 1.
Embodiment 13
The high briliancy high-stiffness reflectance coating provided such as embodiment 12, wherein
Polyester resin is PET in the reflecting layer, content 66%, and incompatible vector resin selects the polyolefin, content to be
17%, inorganic particulate selects rutile type titanium white, content 17%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 20%, the B layers of reflecting layer overall thickness
Thickness accounts for the 80% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 30% are selected in olefin(e) acid resinoid, content 70%, the ultra-violet curing agent.
Bulky grain 25%, 33 μm of grain size,
Little particle 25%, 6 μm of grain size.
Embodiment 14
The high briliancy high-stiffness reflectance coating provided such as embodiment 9, wherein
Polyester resin is PET in the reflecting layer, content 74%, and incompatible vector resin selects the polyolefin, content to be
13%, inorganic particulate selects rutile type titanium white, content 13%；
The reflecting layer is the three-layer co-extruded structures of ABA, wherein A layers of thickness accounts for 14%, the B layers of reflecting layer overall thickness
Thickness accounts for the 86% of reflecting layer overall thickness.
The hardened layer includes ultraviolet-curing resin glue and ultra-violet curing agent, and the ultraviolet-curing resin glue selects third
Epoxy curing agent, content 20% are selected in olefin(e) acid resinoid, content 80%, the ultra-violet curing agent.
Bulky grain 25%, 35 μm of grain size,
Little particle 25%, 7 μm of grain size.
Embodiment 15
The high briliancy high-stiffness reflectance coating provided such as embodiment 12, wherein
Polyester resin is PET in the reflecting layer, content 80%, and incompatible vector resin selects the polyolefin, content to be
10%, inorganic particulate selects rutile type titanium white, content 10%；
Bulky grain 40%, 50 μm of grain size,
Little particle 10%, 1-2 μm of grain size.
Embodiment 16
The high briliancy high-stiffness reflectance coating provided such as embodiment 9, wherein
Polyester resin is PET in the reflecting layer, content 60%, and incompatible vector resin selects the polyolefin, content to be
20%, inorganic particulate selects rutile type titanium white, content 20%；
Bulky grain 35%, 60 μm of grain size,
Little particle 15%, 10 μm of grain size.
High briliancy high-stiffness reflectance coating performance test table obtained by 1 embodiment 1-16 of table
The data shown in above-mentioned table 1 can obtain, high briliancy high-stiffness reflectance coating provided by the invention have simultaneously compared with
High briliancy and deflection, and scratch-resistant play certain protective role to light guide plate, and comprehensive performance is preferable, applied widely.Especially
, the comprehensive performance for the high briliancy high-stiffness reflectance coating that embodiment 7-9,11-14 provides is preferable：Reflectivity is higher than 97%, briliancy
Higher than 5860cd/cm2, for neat degree higher than 81%, deflection is higher than 21cm, and anti scuffing rank is 1 grade.Wherein, embodiment 9 provides
The comprehensive performance of high briliancy high-stiffness reflectance coating is best.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is every
The equivalent changes and modifications done according to the content of present invention are encompassed by the scope of the claims of the present invention.
Claims (7)
1. a kind of high briliancy high-stiffness reflectance coating, which is characterized in that the high briliancy high-stiffness reflectance coating is by reflecting layer, hardening
Layer, coated particle layer composition；The upper surface in the reflecting layer is coated with coated particle layer, and the lower surface in the reflecting layer is coated with
Hardened layer；The coated particle layer includes binder resin and diffusion particle, and the diffusion particle is bonded in instead by binder resin
Penetrate the surface of layer；The diffusion particle includes bulky grain and little particle；The reflector thickness accounts for the 70%- of overall film thickness
85%；The thin hardened layer accounts for the 5%-10% of overall film thickness, and the coating thickness accounts for the 10%- of overall film thickness
20%；The coated particle layer includes following components：Binder resin 50%, bulky grain 15%-25%, little particle 25-35%；Greatly
Grain diameter is 30-35 μm, and little particle grain size is 6-8 μm；The thin hardened layer is 10-18 μm.
2. high briliancy high-stiffness reflectance coating according to claim 1, which is characterized in that the reflecting layer includes following groups
Part：Polyester resin 60-80%, incompatible vector resin 10-20% and inorganic particulate 10-20%, the percentage are weight hundred
Divide content.
3. high briliancy high-stiffness reflectance coating according to claim 2, which is characterized in that the reflecting layer includes following groups
Part：
Polyester resin 66-74%,
Inorganic particulate 13-17%,
Incompatible vector resin 13-17%.
4. high briliancy high-stiffness reflectance coating according to claim 2, which is characterized in that the inorganic particulate is selected from SiO2Grain
Son, TiO2Particle, BaSO4Particle, Al2O3One kind in particle or at least two combination, the grain size of the inorganic particulate is
0.1-2.0μm。
5. high briliancy high-stiffness reflectance coating according to claim 1, which is characterized in that the raw material of the hardened layer includes purple
Outer solidified resin glue；The ultraviolet-curing resin glue selects acrylic resin.
6. high briliancy high-stiffness reflectance coating according to claim 1, which is characterized in that the hardened layer includes ultra-violet curing
Resin glue and ultra-violet curing agent, the ultraviolet-curing resin glue select acrylic resin, content 70-80%, the purple
Coated sand intensifier selects epoxy curing agent, content 20-30%；The percentage is weight percentage.
7. the preparation method of high briliancy high-stiffness reflectance coating according to claim 1, which is characterized in that the preparation method
Include the following steps：
(1) reflecting layer is prepared, inorganic particulate masterbatch resin is first prepared, inorganic particulate is mixed with some polyesters resin material and is made
Inorganic particulate masterbatch resin is made in grain；Later, by the raw material in reflecting layer using three-layer co-extruded carry out slab, longitudinal stretching is lateral
It stretches, thermal finalization, it is cooling, it draws, winds, cutting obtains the reflecting layer；
(2) it is coated with one layer of hardened layer online in the one side in reflecting layer, is placed in 100 DEG C -120 DEG C dry 1min-2min in baking oven；
(3) wet coating mode is used, by the coating solution containing diffusion particle prepared in the another side of reflectance coating, is used
High-pressure sodium lamp is with 700-900mj/cm2Irradiation solidification, forms coated particle layer.
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| CN108873132A (en) * | 2017-12-27 | 2018-11-23 | 宁波长阳科技股份有限公司 | A kind of complex reflex plate and its application |
| CN108710168B (en) * | 2018-05-22 | 2023-08-22 | 广州市虹烨光电有限公司 | Preparation method of coating type reflecting film |
| CN108761591B (en) * | 2018-05-22 | 2021-08-24 | 四川京龙光电科技有限公司 | Coating type reflecting film for side-entry backlight module |
| CN110261952A (en) * | 2019-08-02 | 2019-09-20 | 广州希恩朋克光电产品股份有限公司 | A kind of light guide plate and preparation method thereof |
| CN113174079B (en) * | 2021-05-06 | 2022-10-21 | 深圳市壹鑫光学电子有限公司 | Scratch-resistant optical reflection film and preparation method thereof, backlight module and liquid crystal display panel |
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| US5714247A (en) * | 1996-06-14 | 1998-02-03 | Industrial Technology Research Institute | Reflective surface for LCD and method for forming it |
| CN101241207A (en) * | 2008-03-13 | 2008-08-13 | 长兴光学材料（苏州）有限公司 | Reflecting film |
| CN102508326A (en) * | 2011-11-24 | 2012-06-20 | 合肥乐凯科技产业有限公司 | Optical diffusion barrier with high haze and high brightness and liquid crystal display backlight source using optical diffusion barrier |
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| US5714247A (en) * | 1996-06-14 | 1998-02-03 | Industrial Technology Research Institute | Reflective surface for LCD and method for forming it |
| CN101241207A (en) * | 2008-03-13 | 2008-08-13 | 长兴光学材料（苏州）有限公司 | Reflecting film |
| CN102508326A (en) * | 2011-11-24 | 2012-06-20 | 合肥乐凯科技产业有限公司 | Optical diffusion barrier with high haze and high brightness and liquid crystal display backlight source using optical diffusion barrier |
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