CN109655950A - A kind of dirty high silver lustre reflectance coating of slim anti-finger of high reliability - Google Patents
A kind of dirty high silver lustre reflectance coating of slim anti-finger of high reliability Download PDFInfo
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- CN109655950A CN109655950A CN201811541745.3A CN201811541745A CN109655950A CN 109655950 A CN109655950 A CN 109655950A CN 201811541745 A CN201811541745 A CN 201811541745A CN 109655950 A CN109655950 A CN 109655950A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/0808—Mirrors having a single reflecting layer
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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
- G02B1/14—Protective coatings, e.g. hard coatings
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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
- G02B1/18—Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
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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 the reflective film material technical fields of backlight LCD, and in particular to a kind of dirty high silver lustre reflectance coating of slim anti-finger of high reliability.In order to solve the problems, such as that warpage is serious after existing high silver lustre reflectance coating reliability, the present invention provides a kind of reflectance coating.The reflectance coating successively includes the first hardening coat, the first priming coat, protection against oxidation layer, Ag layers, transition zone, substrate layer, barrier layer, the second priming coat and the second hardening coat.Compared to existing product at present on the market, the surface of reflectance coating provided by the invention has high rigidity, excellent wearability, excellent soil resistance, it solves existing high silver lustre reflectance coating easily to be scratched by light guide plate, silver layer is caused to be oxidized, so that backlight luminance be caused to reduce even completely black problem；Reflectance coating provided by the invention is prepared using individual substrate simultaneously, and warpage is serious after solving the problems, such as finished product reliability, and machine demanding for reliability has the adaptability more reinforced.
Description
Technical field
The present invention relates to the reflective film material technical fields of backlight LCD, while being also covered by the neck for needing similar reflectance coating
Domain is specifically related to a kind of dirty high silver lustre reflectance coating of slim anti-finger of high reliability.
Background technique
LCD liquid crystal display is non-luminescent property display technology device, it is necessary to could show image using backlight.Therefore,
The development of backlight module plays the role of the development of display vital.Present liquid crystal display is towards the side of ultrathin
Formula is developed, backlight module similarly towards light, thin, low-power consumption, high brightness, low cost on developed.
Backlight module mainly by LED light source, lampshade, reflectance coating, light guide plate, diffusion barrier, brightness enhancement film and outline border etc. assemble and
At.The main function of reflectance coating is will to leak out the light high efficiency of light guide plate bottom and reflect without loss, to drop low optical loss
Damage reduces electricity consumption, improves the light saturation degree of liquid crystal display.Backlight module develops on direction towards light, thinning, reduces reflection
The thickness of film will become following trend.Warpage after reliability will will affect entire backlight to a certain extent
Luminescence Uniformity.The assembling yield of warpage and raising reflectance coating after reducing reflectance coating reliability will become following and need urgently
Problem to be solved.
The silver-colored reflectance coating used on the market at present, belongs to composite membrane substantially, and the shrinking percentage of two layers of substrate layer material exists
Biggish difference (double silver reflectance coatings are relatively good, but apply machine limited), will largely will affect silver-colored reflectance coating and trust
Warpage after property.It is existing with a thickness of 80 or 75 μm on the market meanwhile as the following machine is towards slim development, it is subsequent by nothing
Method meets the needs of client, and attaching process will be made there are biggish technological challenges by continuing to be thinned.Therefore, it prepares a kind of highly reliable
Property the slim dirty high silver lustre reflectance coating of anti-finger there are its necessity.
Summary of the invention
In order to solve the problems, such as that warpage is serious after existing high silver lustre reflectance coating reliability, the present invention provides a kind of reflectance coating.
The outer surface of reflectance coating provided by the invention has high rigidity, excellent wearability, excellent soil resistance, solves existing height
Silver lustre reflectance coating functional surfaces are easily scratched by light guide plate, and silver layer is caused to be oxidized, so that it is even completely black to cause backlight luminance to reduce
Problem；Reflectance coating provided by the invention is prepared using individual substrate simultaneously, and warpage is serious after solving the problems, such as finished product reliability,
Machine demanding for reliability has the adaptability more reinforced.
In order to solve the above technical problem, the present invention provides following technical solutions:
The present invention provides a kind of reflectance coating, and the reflectance coating successively includes the first hardening coat, the first priming coat, anti-oxidation
Protective layer (abbreviation antioxidation coating), Ag layers, transition zone, substrate layer, barrier layer, the second priming coat and the second hardening coat.
The reflectance coating is also known as the dirty high silver lustre reflectance coating of the slim anti-finger of high reliability.
The reflectance coating by the first hardening coat, the first priming coat, protection against oxidation layer, Ag layers, transition zone, substrate layer,
Barrier layer, the second priming coat and the second hardening coat composition.
The hardening coat is also known as the dirty hardening coat of anti-finger, the dirty hardened layer of anti-finger.It is reflected compared to other compound silvers
Film, reflectance coating provided by the invention belong to individual silver-colored reflectance coating.
Further, during the preparation process, first hardening coat and the second hardening coat are referred to as hardening coat, institute
It states hardening coat and is first configured to coating fluid.
The coating fluid is also known as hardening bath.
Further, the coating fluid of the hardening coat includes acrylic ester prepolymer, and acrylate monomer is light-initiated
Agent, fluorine element additive and organic solvent.
Fluorine element additive is also referred to as fluorine auxiliary agent.
Further, the coating fluid of the hardening coat includes six official's polyurethane acrylic resin prepolymers, the poly- ammonia of three officials
Ester acrylic resin prepolymer, three official's acrylate monomers, photoinitiator, fluorine element additive and organic solvent.
Under UV lamp irradiation rapid polymerization occurs for the coating fluid of the anti-finger dirt hardening coat, so that fluoride (fluorine element
Additive) matrix resin surface is floated on, to provide the anti-smoothness and soil resistance for referring to dirty hardening coat surface, acrylate is pre-
Functional group content can have a major impact the hardness of coating surface in polymers and monomer, and then influence the resistance to of the dirty hardening coat of anti-finger
Grind characteristic.
Further, first priming coat and the second priming coat are referred to as priming coat, and the material of the priming coat is selected from
One of acrylic resin or polyurethane or combination of the two.
Further, the material of the priming coat in aqueous polyurethane, solvent borne polyurethane, acrylic system one
Kind or at least two combination.
Further, the material of the protection against oxidation layer is selected from acrylate polymer.
Further, the protection against oxidation layer choosing is from one of acrylic system.
Further, it is prepared by the way of physical vapour deposition (PVD) for described Ag layers.
Further, the material of the substrate layer is selected from polyethylene terephthalate, polymethyl methacrylate, gathers
One of carbonic ester, polyamide, polyimides or polystyrene or at least two combination.
Further, the material of the substrate layer is selected from the derivative of above-mentioned material, for example aluminizes (aluminizer), adulterates
TiO2/BaSO4The material (white PET) of coextrusion.
Further, the material of the substrate layer preferably adulterates TiO2/BaSO4The polyethylene terephthalate of coextrusion
Ester (white PET).
Further, the PET base material, using low-shrinkage transparent substrate.
Further, the transition zone, one in the acrylic resin or polyurethane relatively good with Ag binding force
Kind or combination of the two.
Further, the barrier layer material is a kind of in silica, aluminium oxide or silicon nitride or at least two
Combination.
Further, Ag layers with a thickness of 30-80nm, substrate layer (such as white pet layer) with a thickness of 25-75 μm, mistake
Layer 1-2 μm is crossed, barrier layer 10-100nm.
Hardening coat with a thickness of 0.5-2 μm, priming coat with a thickness of 0.1-0.5 μm, protection against oxidation layer with a thickness of
0.2-1μm。
Further, the hardening coat with a thickness of 2 μm, priming coat with a thickness of 0.1 μm, the thickness of protection against oxidation layer
Degree is 0.2 μm.
Further, Ag layers with a thickness of 40-60nm, substrate layer with a thickness of 50-75 μm, transition zone with a thickness of 1-
1.5 μm, barrier layer with a thickness of 40-60nm.
By the dirty hardening coat of above-mentioned anti-finger, priming coat, protection against oxidation layer, Ag layers, white pet layer, barrier layer, priming coat
And the anti-thickness limit for referring to dirty hardening coat is within the above range, to after final high silver lustre reflectance coating reliability warpage,
The yield of assembling, which has, more preferably manages property.
Further, Ag layers of thickness is preferably 40-60nm.
Further, Ag layers of thickness is preferably 50nm.
Further, the thickness of transition zone is preferably 1-1.5 μm.
Further, the thickness of PET base material layer is preferably 50-75 μm.
Further, the thickness of barrier layer is preferably 40-60nm.
Further, the thickness of barrier layer is preferably 50nm.
Further, the anti-coating fluid for referring to dirty hardening coat includes six official's polyurethane acrylic resins of 30 parts by weight
Prepolymer, 18 parts by weight, three official's polyurethane acrylic resin prepolymer, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight
Photoinitiator (photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is second
Acetoacetic ester.
The present invention also provides a kind of methods for preparing reflectance coating, the described method comprises the following steps:
(1) it uses and mixes TiO2/BaSO4The substrate of coextrusion is first pre-processed, then in one layer of mistake of the coated on one side of substrate
Layer is crossed, the flatness for improving substrate simultaneously, enhances the subsequent binding force with Ag atom；
(2) Ag layers are deposited on processed substrate；
(3) protection against oxidation layer is coated in Ag layer surface；
(4) it is coated with one layer of first priming coat in protection against oxidation layer surface, the coating for subsequent curing liquid；
(5) it is coated with hardening bath on the first priming coat, the first hardening coat is obtained after solidification；
(6) barrier layer is deposited in the another side of substrate；
(7) it is coated with one layer of second priming coat on the surface of barrier layer, the coating for subsequent reverse side hardening bath；
(8) it is coated with hardening bath on the second priming coat, the second hardening coat is obtained after solidification；
(9) slitting is carried out, shipment is packed.
Compared with the existing high black reflectance coating of silver lustre, the surface of reflectance coating provided by the invention has high rigidity, excellent
Wearability, excellent soil resistance, simultaneously because this product is non-composite film, angularity≤2mm after material reliability, reflectivity
> 96.0%.
Reflectance coating provided by the invention realizes following technical effect:
1, after silver layer face is coated with the dirty hardened layer (i.e. the first hardening coat) of anti-finger, high-wearing feature, high rigidity may be implemented
The characteristics of, it can be avoided scuffing, scratch of the light guide plate to reflector plate surface, play the role of protecting silver-colored reflectance coating, while also not
It scratches, scratch light guide plate, there is high reliability；
2, the mode of barrier material is deposited in white PET base material layer, can be effectively reduced in high temperature and humidity reliability
Water oxygen while after the dirty hardened layer (i.e. the second hardening coat) of the anti-finger of backsize, has high anti-the corrosiveness of Ag material
The characteristics of dirt, high protection, the influence for material yield such as finger pollution in assembling process can be reduced；
3, the method for preparing reflectance coating using individual substrate reduces material and produces the warpage after offline and reliability, keeps away
Exempted from present on the market the difficult to govern control of composite material warpage the problem of, to further increase the yield of complete machine assembling.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing common high silver lustre reflectance coating；
Fig. 2 is a kind of slim anti-structural schematic diagram for referring to dirty high silver lustre reflectance coating of high reliability provided by the invention；
Wherein:
10: antioxidation coating,
20:Ag layers,
30:PET substrate layer,
40: hot dry glue composite layer,
50:PET substrate layer,
60: the dirty hardening coat of anti-finger plays wear-resisting, anti scuffing,
70: priming coat,
80: transition zone,
90: barrier layer.
Specific embodiment
In order to make the personnel of correlative technology field better understand the invention patent, below in conjunction with the embodiment of the present invention and
Attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention can be combined with each other.
As shown in Figure 1, existing high silver lustre reflectance coating includes antioxidation coating 10, Ag layer 20, PET base material layer 30, hot dry glue is multiple
Close glue-line 40, PET base material layer 50.Existing high silver lustre reflectance coating has 2 substrate layers.
As shown in Fig. 2, reflectance coating provided by the invention includes: the first hardening coat 60, the first priming coat 70, antioxidation coating
10, Ag layer 20, transition zone 80, PET base material layer 30, barrier layer 90, the second priming coat 70, the second hardening coat 60.First hardening
Coating and the second trueization coating are referred to as hardening coat, the also referred to as anti-dirty hardening coat of finger.First priming coat and the second primary coat
Layer is referred to as priming coat.
Reflectance coating provided by the invention is tested for the property in accordance with the following methods:
Silver-colored face reflectivity: according to the standard of NIST 2054, light is divided using Agilent Cary5000 UV, visible light near-infrared
Reflectivity of each silver-colored reflectance coating of degree measurement examination at 550nm.Silver face reflectivity refers to that surface layer is that anti-finger is dirty hard in reflectance coating
Change the reflectivity of layer (i.e. the first hardening coat) one side.
Adhesive force: according to the standard of GB 1720-1979 " paint film adhesion measuring method ", the adhesive force of test oil layer of ink,
In 100/100 represent not demoulding, 90/100 represents and falls off 10%.
Wearability: each hardened layer is tested according to HG/T 4303-2012 " Surface hardened layer polyester film wearability measuring method "
It is wear-resisting lossy, using 0000# steel wool, 1000gf/cm2Weight bearing, by detecting abrasion resistance of the membrane surface without scuffing
The limit, to judge the abrasion resistant effect of film.
Water contact angle: according to the standard of GB/T 30693-2014 " measurement of plastic film and water contact angle ", anti-finger is tested
The surface water contact angle of dirty hardened layer.Water contact angle is bigger, and the dirty ability of anti-finger is stronger.
Warpage is tested after reliability: in temperature being 70 DEG C by reflectance coating, the high temperature and humidity condition of humidity 95% places 500h
After tested, warpage test specification be 10cm × 10cm, depth of camber test tested using feeler gauge.
Silver layer corrosion condition judges after reliability: mainly observation silver layer material falls situation, goes to sentence using light-illuminating
It is disconnected whether light transmission, judgment criteria is that the general > difference > of the good > of outstanding > is very poor.Wherein, outstanding is 100% without light transmission, well
For there are a small amount of light transmission, for generally edge 2mm there are light transmission, it is saturating that difference is that edge 2mm or more has large area in edge 2mm
Light, very poor is substantially all light transmission.
Fold judges after reliability: carrying out assembling backlight after reflectance coating is cut corresponding size, backlight is 70 in temperature
DEG C, the high temperature and humidity condition of humidity 95% carries out lighting test after placing 500h, and specification is 5.5 cun.Judgment criteria is normal >
Slight > is serious.It is normally corrugationless phenomenon, slightly for edge, there are waves to stick up, and seriously runs through whole diaphragm for fold.
Assembling yield: it is accounted in total quantity according to the non-defective unit that the silver-colored reflectance coating that 1000 specifications are 5.5 cun is assembled into backlight
Ratio.
Pencil hardness: according to the standard of GB 1720-1979 " paint film adhesion measuring method ".
Warpage test: the specification of test is 10cm × 10cm, tests depth of camber using feeler gauge.
The present invention provides a kind of reflectance coating, and the reflectance coating successively includes the first hardening coat, the first priming coat, anti-oxidation
Protective layer, Ag layers, transition zone, substrate layer, barrier layer, the second priming coat and the second hardening coat.
The coating fluid of hardening coat used in embodiment includes that six official's polyurethane acrylic resins of 30 parts by weight are pre-
Polymers, 18 parts by weight, three official's polyurethane acrylic resin prepolymer, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight light
Initiator (photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is acetic acid
Ethyl ester.
The material of the priming coat is acrylic.
The material of the protection against oxidation layer is acrylic.
Embodiment 1
A kind of reflectance coating provided by the invention, the reflectance coating successively include the first hardening coat, the first priming coat, oxygen
Change protective layer (abbreviation antioxidation coating), Ag layers, transition zone, substrate layer, barrier layer, the second priming coat and the second hardening coat.
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 30nm, and transition zone 80 is with a thickness of 1 μm, and white PET base material layer 30 is with a thickness of 75 μm, barrier
Layer 90 is with a thickness of 10nm.
Embodiment 2
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 30nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 10nm.
Embodiment 3
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 30nm, and transition zone 80 is with a thickness of 2 μm, and white PET base material layer 30 is with a thickness of 75 μm, barrier
Layer 90 is with a thickness of 10nm.
Embodiment 4
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 40nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 10nm.
Embodiment 5
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 10nm.
Embodiment 6
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 60nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 10nm.
Embodiment 7
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 80nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 10nm.
Embodiment 8
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 20nm.
Embodiment 9
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 40nm.
Embodiment 10
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 50nm.
Embodiment 11
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 60nm.
Embodiment 12
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 100nm.
Embodiment 13
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 50 μm, resistance
Interlayer 90 is with a thickness of 50nm.
Embodiment 14
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 38 μm, resistance
Interlayer 90 is with a thickness of 50nm.
Embodiment 15
The dirty hardening coat 60 of the anti-finger of the present embodiment is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 25 μm, resistance
Interlayer 90 is with a thickness of 50nm.
In order to compare individual silver-colored reflectance coating (reflectance coating provided by the invention) and composite silver reflectance coating (comparative example offer it is anti-
Penetrate film) performance, the warpage situation especially after reliability, we select shrinking percentage to be relatively close to, the different PET base of thickness
Material (MD≤- 0.20%, TD≤- 0.04%) and PET tunica albuginea (contain TiO2And BaSO4) substrate.
Comparative example 1
The dirty hardening coat 60 of the anti-finger of this comparative example is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, nothing
Barrier layer and the dirty hardening coat of priming coat thereon and anti-finger.
Comparative example 2
The dirty hardening coat 60 of the anti-finger of this comparative example is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 50nm, and transition zone 80 is with a thickness of 1.5 μm, and white PET base material layer 30 is with a thickness of 75 μm, resistance
Interlayer 90 is with a thickness of 50nm, base coat and the dirty hardening coat of anti-finger on barrier layer.
Comparative example 3
The dirty hardening coat 60 of the anti-finger of this comparative example is with a thickness of 2 μm, and priming coat 70 is with a thickness of 0.1 μm, protection against oxidation layer 10
With a thickness of 0.2 μm, Ag layer 20 is with a thickness of 30nm, and transition zone 80 is with a thickness of 0 μm, and white PET base material layer 30 is with a thickness of 75 μm, barrier
Layer 90 is with a thickness of 10nm.
Comparative example 4-6 is conventional high silver lustre reflectance coating visible on the market, belongs to composite material, comprising antioxidation coating 10,
Ag layer 20, PET base material layer 30, hot dry glue composite layer 40 and white PET base material layer 50.
Comparative example 4
This comparative example protection against oxidation layer 10 with a thickness of 0.2 μm, Ag layer 20 with a thickness of 50nm, PET base material layer 30 with a thickness of
50 μm, hot dry glue composite layer 40 is with a thickness of 4 μm, and white PET base material layer 50 is with a thickness of 25 μm.
Comparative example 5
This comparative example protection against oxidation layer 10 with a thickness of 0.2 μm, Ag layer 20 with a thickness of 50nm, PET base material layer 30 with a thickness of
25 μm, hot dry glue composite layer 40 is with a thickness of 4 μm, and white PET base material layer 50 is with a thickness of 50 μm.
Comparative example 6
This comparative example protection against oxidation layer 10 with a thickness of 0.2 μm, Ag layer 20 with a thickness of 50nm, PET base material layer 30 with a thickness of
38 μm, hot dry glue composite layer 40 is with a thickness of 4 μm, and white PET base material layer 50 is with a thickness of 38 μm.
1 comparative example 3 of table, the reflecting properties testing result for the reflectance coating that embodiment 1-3 is provided
| Performance | Silver-colored face reflectivity | The test of silver layer adhesive force |
| Comparative example 3 | 87.53% | 80/100 |
| Embodiment 1 | 93.32% | 90/100 |
| Embodiment 2 | 95.41% | 100/100 |
| Embodiment 3 | 95.39% | 100/100 |
From the comparing result in table 1 it can be found that the reflectivity of silver layer can be with mistake in the case where silver thickness is fixed
It crosses the increase of layer material material thickness and is promoted, but after the thickness of transition zone reaches certain value, reflectivity will not
It will continue to rise, the flatness of substrate can be increased by essentially consisting in transition zone；Secondly, the adhesive force of silver layer is related with transition zone,
Without transition zone, adhesive force is relatively poor, and as the thickness of transition zone increases, adhesive force is promoted more obvious.Embodiment 2 has reached
To an opposite optimum value.
The main performance testing result for the reflectance coating that 2 embodiment 2,4-7 of table is provided
| Performance | Silver-colored face reflectivity |
| Embodiment 2 | 95.41% |
| Embodiment 4 | 95.92% |
| Embodiment 5 | 96.57% |
| Embodiment 6 | 96.59% |
| Embodiment 7 | 96.58% |
From the comparing result in table 2 it can be found that thickness of the silver-colored face reflectivity mainly with Ag layers is closely bound up, with Ag layers
The promotion of thickness, silver-colored face reflectivity are gradually promoted, and after Ag thickness degree reaches certain value, reflectivity will not be continued growing.It is real
For Ag layers in example 5 of thickness is applied from the angle of cost and performance, an optimum value is had reached.The barrier of embodiment 5-7
Layer is thin, and silver layer corrosion condition is general after reliability.
The main performance testing result for the reflectance coating that 3 embodiment 5 of table, embodiment 8-12 are provided
From the comparing result in table 3 it can be found that the presence of barrier layer, is substantially not present shadow for the reflectivity in silver-colored face
It rings, but the corrosion condition after silver layer reliability is influenced bigger.Corrosion condition subtracts as the thickness of barrier layer increases
Few even to disappear, adhesive force gradually improves as the thickness of barrier layer increases.12 higher cost of embodiment, overall cost because
Element, embodiment 9,10 and 11 belong to preferably embodiment.
4 embodiment 10,13-15 of table provide reflectance coating and comparative example 1-2,4-6 provide high silver lustre reflectance coating it is main
Performance test results
Comparing result from table 4, embodiment 10, it is thinner that 13-15 can be seen that white PET base material layer thickness, subsequent letter
Lai Xinghou backlight is easy to appear fold, individual optimal substrate selection is with a thickness of 50 and 75 μm.Embodiment 10 and comparative example 1-2 can
To find out, the corrosion condition of silver layer is mainly related with barrier layer presence or absence after reliability.Meanwhile fine flour (barrier layer that
Face) if the dirty hardening coat of not anti-finger, it will yield is assembled to it a large effect.Embodiment 10 and comparative example 4-
6 can be seen that optimum embodiment provided by the invention in the case where not reducing reflectivity as far as possible, can be to the offline warpage of material
And warpage has preferable control after reliability, can effectively improve the yield of assembling, while can be improved the wear-resisting of silver-colored face
Property, to reduce light guide plate and silver-colored face friction, lead to the risk of subsequent vapour corrosion.
The above is only the preferred embodiments of the invention patent, are not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of reflectance coating, which is characterized in that the reflectance coating successively includes the first hardening coat, the first priming coat, anti-oxidation
Protective layer, Ag layers, transition zone, substrate layer, barrier layer, the second priming coat and the second hardening coat.
2. reflectance coating according to claim 1, which is characterized in that during the preparation process, first hardening coat and
Two hardening coats are referred to as hardening coat, and the material of the hardening coat is first configured to coating fluid, the coating of the hardening coat
Liquid includes acrylic ester prepolymer, acrylate monomer, photoinitiator, fluorine element additive and organic solvent.
3. reflectance coating according to claim 2, which is characterized in that the coating fluid of the hardening coat includes six official's polyurethane
Acrylic resin prepolymer, three official's polyurethane acrylic resin prepolymers, three official's acrylate monomers, photoinitiator, fluorine element add
Add agent and organic solvent.
4. reflectance coating according to claim 1, which is characterized in that first priming coat and the second priming coat are referred to as bottom
The material of coating, the priming coat is selected from one of acrylic resin or polyurethane or combination of the two.
5. reflectance coating according to claim 1, which is characterized in that the material of the protection against oxidation layer is selected from acrylic acid
Ester polymer.
6. reflectance coating according to claim 2, which is characterized in that the coating fluid of the hardening coat includes 30 parts by weight
Six official's polyurethane acrylic resin prepolymers, 18 parts by weight, three official's polyurethane acrylic resin prepolymer, 12 parts by weight, three official third
Olefin(e) acid ester monomer, 3.6 parts by weight photoinitiators (photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and 40 weight parts organic solvents are mixed
It closes.
7. reflectance coating according to claim 1, which is characterized in that the barrier layer material is selected from silica, aluminium oxide
In silicon nitride it is a kind of or at least two combination.
8. reflectance coating according to claim 1, which is characterized in that the substrate layer material is selected from poly terephthalic acid second
One of diol ester, polymethyl methacrylate, polycarbonate, polyamide, polyimides or polystyrene or at least two
Combination.
9. reflectance coating according to claim 1, which is characterized in that Ag layers with a thickness of 30-80nm, substrate layer with a thickness of
25-75 μm, transition zone with a thickness of 1-2 μm, barrier layer with a thickness of 10-100nm.
10. reflectance coating according to claim 1, which is characterized in that Ag layers with a thickness of 40-60nm, substrate layer with a thickness of
50-75 μm, transition zone with a thickness of 1-1.5 μm, barrier layer with a thickness of 40-60nm.
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| CN201811541745.3A CN109655950A (en) | 2018-12-17 | 2018-12-17 | A kind of dirty high silver lustre reflectance coating of slim anti-finger of high reliability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878189A (en) * | 2019-11-27 | 2020-03-13 | 东莞市赛越新材料科技有限公司 | Screen protective film with nail print resistance and nail print self-repairing function and preparation method thereof |
| CN111708227A (en) * | 2020-07-01 | 2020-09-25 | 东莞市光志光电有限公司 | Reflector plate for reducing abrasion of light guide plate, preparation method thereof and backlight module |
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| CN106707385A (en) * | 2015-11-13 | 2017-05-24 | 宁波长阳科技股份有限公司 | Silver-plated reflection film and preparation method thereof |
| CN107964350A (en) * | 2017-12-06 | 2018-04-27 | 宁波激智科技股份有限公司 | One kind hardening coating fluid and a kind of high reliability high brightness silver reflectance coating and preparation method thereof |
| CN108152871A (en) * | 2017-12-08 | 2018-06-12 | 中国乐凯集团有限公司 | A kind of silvered reflective film |
| CN108178839A (en) * | 2018-01-09 | 2018-06-19 | 宁波激智科技股份有限公司 | A kind of reflectance coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106707385A (en) * | 2015-11-13 | 2017-05-24 | 宁波长阳科技股份有限公司 | Silver-plated reflection film and preparation method thereof |
| CN107964350A (en) * | 2017-12-06 | 2018-04-27 | 宁波激智科技股份有限公司 | One kind hardening coating fluid and a kind of high reliability high brightness silver reflectance coating and preparation method thereof |
| CN108152871A (en) * | 2017-12-08 | 2018-06-12 | 中国乐凯集团有限公司 | A kind of silvered reflective film |
| CN108178839A (en) * | 2018-01-09 | 2018-06-19 | 宁波激智科技股份有限公司 | A kind of reflectance coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110878189A (en) * | 2019-11-27 | 2020-03-13 | 东莞市赛越新材料科技有限公司 | Screen protective film with nail print resistance and nail print self-repairing function and preparation method thereof |
| CN111708227A (en) * | 2020-07-01 | 2020-09-25 | 东莞市光志光电有限公司 | Reflector plate for reducing abrasion of light guide plate, preparation method thereof and backlight module |
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Application publication date: 20190419 |