CN106827689A - A kind of high reflectance reflectance coating - Google Patents
A kind of high reflectance reflectance coating Download PDFInfo
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- CN106827689A CN106827689A CN201611206909.8A CN201611206909A CN106827689A CN 106827689 A CN106827689 A CN 106827689A CN 201611206909 A CN201611206909 A CN 201611206909A CN 106827689 A CN106827689 A CN 106827689A
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- reflectance coating
- reflectance
- layer
- conversion
- rare earth
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- 239000011248 coating agent Substances 0.000 title claims abstract description 62
- 238000000576 coating method Methods 0.000 title claims abstract description 62
- 238000006243 chemical reaction Methods 0.000 claims abstract description 85
- 238000001125 extrusion Methods 0.000 claims abstract description 54
- 239000002245 particle Substances 0.000 claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 59
- VQCBHWLJZDBHOS-UHFFFAOYSA-N erbium(III) oxide Inorganic materials O=[Er]O[Er]=O VQCBHWLJZDBHOS-UHFFFAOYSA-N 0.000 claims description 51
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 43
- FIXNOXLJNSSSLJ-UHFFFAOYSA-N ytterbium(III) oxide Inorganic materials O=[Yb]O[Yb]=O FIXNOXLJNSSSLJ-UHFFFAOYSA-N 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 25
- 238000010532 solid phase synthesis reaction Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 3
- 238000002310 reflectometry Methods 0.000 abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 2
- 230000000116 mitigating effect Effects 0.000 abstract 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 46
- 239000000463 material Substances 0.000 description 38
- 229920000728 polyester Polymers 0.000 description 29
- 239000011347 resin Substances 0.000 description 24
- 229920005989 resin Polymers 0.000 description 24
- 238000005266 casting Methods 0.000 description 23
- 238000001816 cooling Methods 0.000 description 22
- 238000002844 melting Methods 0.000 description 22
- 230000008018 melting Effects 0.000 description 22
- 239000000843 powder Substances 0.000 description 22
- 239000002002 slurry Substances 0.000 description 22
- 238000012360 testing method Methods 0.000 description 18
- -1 polyethylene terephthalate Polymers 0.000 description 14
- 238000003836 solid-state method Methods 0.000 description 14
- 229920000139 polyethylene terephthalate Polymers 0.000 description 12
- 239000005020 polyethylene terephthalate Substances 0.000 description 12
- 229910052769 Ytterbium Inorganic materials 0.000 description 11
- JSLMNNPQKHONFW-UHFFFAOYSA-N benzene naphthalene-1-carboxylic acid Chemical compound C1(=CC=CC2=CC=CC=C12)C(=O)O.C1=CC=CC=C1 JSLMNNPQKHONFW-UHFFFAOYSA-N 0.000 description 11
- 239000012153 distilled water Substances 0.000 description 11
- 229920006254 polymer film Polymers 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- 238000000967 suction filtration Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- MMEDJBFVJUFIDD-UHFFFAOYSA-N 2-[2-(carboxymethyl)phenyl]acetic acid Chemical compound OC(=O)CC1=CC=CC=C1CC(O)=O MMEDJBFVJUFIDD-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- XVZBIIBOLKHMNP-UHFFFAOYSA-N OC(=O)C(O)=O.c1ccc2ccccc2c1 Chemical compound OC(=O)C(O)=O.c1ccc2ccccc2c1 XVZBIIBOLKHMNP-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical compound [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 235000012216 bentonite Nutrition 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 229910052903 pyrophyllite Inorganic materials 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229940082569 selenite Drugs 0.000 description 1
- MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer 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 characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/102—Oxide or hydroxide
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
-
- 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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/416—Reflective
Landscapes
- Luminescent Compositions (AREA)
Abstract
The present invention relates to a kind of high reflectance reflectance coating, contain reflecting layer and optical waveguide layer, optical waveguide layer is coated with the upper surface in reflecting layer, contain up-conversion particle in the optical waveguide layer, the reflectance coating is that at least two-layer co-extrusion is formed, sheet is extruded from die head, through slab, biaxial tension, thermal finalization and winding, are obtained high reflectance reflectance coating.Reflectance coating of the invention has good reflectivity, effectively increases the utilization ratio to light, while mitigating reflectance coating because of caused deformation and the aging phenomenon of being heated, product is applied to liquid crystal display industry.
Description
Used the present invention relates to a kind of reflectance coating that can be used for backlight source module that image shows and lamp reflector, illumination
The reflectance coating of utensil, more particularly to a kind of reflectance coating of high reflectance.
Background technology
With developing rapidly for national economy, substantial amounts of electronic product is widely applied to industry-by-industry, liquid crystal
Display (LCD) is exactly a wherein particularly important class product.Because LCD has, energy consumption is low, radiate that low picture is soft, and volume is light
Just many advantages, such as, so LCD has become current most common Display Technique.
LCD is non-luminescent display device, it is necessary to can be only achieved display function by backlight.The performance of backlight will
The imaging quality of LCD is directly affected, the main member of backlight includes：Light source, light guide plate and all kinds of blooming pieces.
Reflectance coating is widely used in LCD backlight due to the characteristic such as its uniform, high brightness, cheap.The master of reflectance coating
It is that will be expeditiously reflected back in LCD by a part of light in light guide plate to act on, so as to reduce light consume, reduces electricity consumption
Amount, improves the light saturation degree of LCD.Backlight mainly sends white composite, wherein containing part near infrared light.
During although this part IR can return to LCD by reflectance coating, because it is not in the visible wavelength range of human eye,
So the display surface light saturation degree of LCD can not be effectively increased.Inner heat is serious when backlight works simultaneously, each heat generating components
Infra-red radiation can be distributed, this part infrared ray can cause reflectance coating to be integrally heated in addition to it can not be utilized, also, long-term use is held
Easily there is diaphragm because of caused deformation and the aging phenomenon of being heated, influence the display effect of LCD.Existing reflectance coating is mainly for visible
Light and black light carry out reflection utilization, have the shortcomings that underutilization to backlight mid-infrared light line part.
The content of the invention
The deficiency that the present invention exists for existing reflectance coating, there is provided a kind of high reflectance reflectance coating, it can be projected onto
Near infrared light on reflectance coating is converted into visible ray, is effectively increased the light quantity of reflectance coating reflection, increases the display picture light of LCD
Saturation degree.
The present invention is adopted the following technical scheme that：
A kind of high reflectance reflectance coating, containing reflecting layer of the inside containing space, also including being covered on the reflecting layer
The optical waveguide layer on surface.The optical waveguide layer contains up-conversion particle, and the up-conversion particle is to use high temperature solid-state method
What is synthesized contains Yb3+And Er3+Up-conversion phosphor.
Above-mentioned reflectance coating, its up-conversion particle is comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide.
Above-mentioned reflectance coating, Yb in its up-conversion phosphor2O3Rare earth oxide and Er2O3The part by weight of rare earth oxide
It is 1:4~4:1.
Above-mentioned reflectance coating, optical waveguide layer thickness accounts for the 1%~20% of reflectance coating gross thickness, and reflector thickness accounts for reflectance coating total thickness
The 80%~99% of degree.
Above-mentioned reflectance coating, optical waveguide layer thickness accounts for the 5%~15% of reflectance coating gross thickness, and reflector thickness accounts for reflectance coating total thickness
The 85%~95% of degree.
Above-mentioned reflectance coating, up-conversion particle weight accounts for the 1%~30% of guide-lighting layer weight in optical waveguide layer.
Above-mentioned reflectance coating, up-conversion particle weight accounts for the 5%~10% of guide-lighting layer weight in optical waveguide layer.
Above-mentioned reflectance coating, the gross thickness of the reflectance coating is 75 μm~300 μm.
Above-mentioned reflectance coating, the reflectance coating extrudes sheet using two-layer and the method for two-layer above co-extrusion by die head, through casting
Piece, biaxial tension, thermal finalization and winding are obtained.
The advantage of the invention is that：
1. the upper surface in reflecting layer adds one layer of optical waveguide layer by way of co-extrusion, and Yb is contained in the optical waveguide layer3+And Er3 +Up-conversion phosphor, preferably comprise Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide, can pass through LED light source
The near infrared light in light on light guide plate Journalistic to reflectance coating is converted into visible ray, is effectively increased reflectance coating reflection
Light quantity, increases the display surface light saturation degree of LCD.
2. the upper surface in reflecting layer adds one layer of optical waveguide layer by way of co-extrusion, and Yb is contained in the optical waveguide layer3+And Er3 +Up-conversion phosphor, preferably comprise Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide, when can backlight be worked
The infra-red radiation that inner heat generating components are distributed, is converted into visible ray, is effectively increased the light quantity of reflectance coating reflection, increases the aobvious of LCD
Show face light saturation degree.The up-conversion particle is to be synthesized using high temperature solid-state method, and the method is molten relative to hydrothermal synthesis method
Glue-gel method, coprecipitation is ripe with process is simple, and chemical cost is cheap, and material property is outstanding, is adapted to industrial development
Advantage.
3. the upper surface in reflecting layer adds one layer of optical waveguide layer by way of co-extrusion, and Yb is contained in the optical waveguide layer3+And Er3 +Up-conversion phosphor, preferably comprise Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide, when can backlight be worked
The infra-red radiation that inner heat generating components are distributed, is converted into visible ray, effectively reduces heat radiation to reflectance coating, reduce reflectance coating because
It is heated caused deformation and aging phenomenon.
Brief description of the drawings
Fig. 1 is the structural representation of high reflectance reflectance coating of the present invention
Each label is expressed as in Fig. 1：1:Optical waveguide layer, 2：Reflecting layer, 3：Up-conversion particle.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, high reflectance reflectance coating is by optical waveguide layer 1, reflecting layer 2 is total to according to the combination of at least two-layer co-extrusion
Squeeze and formed.
In the present invention, the clear polyester in the optical waveguide layer and reflecting layer for binary acid and dihydroxylic alcohols by polycondensation obtain it is poly-
Compound, wherein binary acid including terephthalic acid (TPA), to phenylenediacetic Acid, to naphthalene oxalic acid, M-phthalic acid, phthalic acid etc.,
It is preferred that terephthalic acid (TPA), can also add a small amount of M-phthalic acid class modified copolyester；Dihydroxylic alcohols is fat that carbon number is 2~4
Fat race glycol, including ethylene glycol, propane diols, butanediol, 1,3-PD etc., preferred ethylene glycol.It is adapted to of the invention pure poly-
Ester is polyethylene terephthalate.
In the present invention, the optical waveguide layer 1 is made up of up-conversion particle 3 and clear polyester (PET).The upper conversion material
Material particle can contain Yb3+、Er3+Deng the compound of rare earth ion, mainly there are fluoride, oxide, sulfur-containing compound, fluorine
Oxide, halide etc..The up-conversion particle be using high temperature solid-state method synthesize, the method have process is simple into
Ripe, chemical cost is cheap, and material property is outstanding, is adapted to the advantage of industrial development.Preferably comprise Yb2O3And Er2O3Rare earth oxide
Up-conversion phosphor.Visual demand addition various additives, such as：SiO2Slipping agent, anti-UV, age-inhibiting addition etc..It is upper to turn
It is 1%~30%, more preferably 5%~10% to change fluorescent material weight and account for optical waveguide layer percentage by weight.The up-conversion phosphor
Obvious changing effect is not had when content is too low, the printing opacity of optical waveguide layer can be influenceed during the up-conversion phosphor too high levels
Rate, overall reflective effect of the influence reflectance coating to light.
In the present invention, the reflecting layer 2 is made up of inorganic particulate, incompatible resin and clear polyester (PET).Inorganic particulate
Iron oxide, magnesia, cerium oxide, zinc oxide, barium carbonate, barium titanate, barium chloride, barium hydroxide, barium monoxide, oxidation can be used
Aluminium, selenite, silica, calcium carbonate, titanium dioxide, zirconium oxide, alumina silicate, mica, pearl mica, pyrophyllite clay,
Burn till clay, bentonite, talcum, kaolin, calcium phosphate, mica titanium, lithium fluoride, calcirm-fluoride, other composite oxides etc..From can
To obtain inexpensively and from the viewpoint of the white reflection film of high reflectance, titanium dioxide, barium sulfate, calcium carbonate are preferably used.
In the present invention, the reflectance coating, optical waveguide layer thickness accounts for the 1%~20% of reflectance coating gross thickness, and reflector thickness is accounted for
The 80%~99% of reflectance coating gross thickness.It is preferred that optical waveguide layer thickness accounts for the 5%~15% of reflectance coating gross thickness, reflector thickness is accounted for
The 85%~95% of reflectance coating gross thickness.
In the present invention, the high reflectance reflectance coating can be prepared by known method, as described below method：
According to percentage by weight, up-conversion phosphor is added in A extruders：5 percentage by weight~10 weight percents
Than, SiO2 particles：1 percentage by weight, PET：89 percentage by weight~94 percentage by weights；Added in B extruders inorganic
Particle：20 percentage by weight~60 percentage by weights, incompatible resin：2 percentage by weight~15 percentage by weights, PET：25 weights
Amount percentage~78 percentage by weight.By the die head of A/B structures, using the method for two-layer co-extrusion, sheet, warp are extruded from die head
Slab, biaxial tension, thermal finalization and winding, are obtained high reflectance reflectance coating.
Method described in the present invention uses two-layer co-extrusion method, but be not limited to that two-layer co-extrusion method, can basis
Actual demand uses three layers or multi-layer co-extruded method.
Preferred explanation is done to the present invention with reference to embodiment, but implementation of the invention is not limited to these implementations
Example.
Embodiment 1
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 0.2%, is contained
Er2O3The concentration of up-conversion phosphor is 0.8%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 5/ with B thickness degree ratio
95.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Embodiment 2
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 0.75%, is contained
Er2O3The concentration of up-conversion phosphor is 2.25%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 15/ with B thickness degree ratio
85.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Embodiment 3
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 1.75%, is contained
Er2O3The concentration of up-conversion phosphor is 3.25%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 10/ with B thickness degree ratio
90.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Embodiment 4
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 3.2%, is contained
Er2O3The concentration of up-conversion phosphor is 4.8%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 5/ with B thickness degree ratio
95.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Embodiment 5
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 5%, is contained
Er2O3The concentration of up-conversion phosphor is 5%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 15/ with B thickness degree ratio
85.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Embodiment 6
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 7.5%, is contained
Er2O3The concentration of up-conversion phosphor is 7.5%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 5/ with B thickness degree ratio
95.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Embodiment 7
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 12%, is contained
Er2O3The concentration of up-conversion phosphor is 8%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 1/ with B thickness degree ratio
99.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Embodiment 8
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 24%, is contained
Er2O3The concentration of up-conversion phosphor is 6%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 1/ with B thickness degree ratio
99.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Comparative example 1
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes the concentration of final up-conversion phosphor be 0%, adds A layers of twin-screw to squeeze
Go out machine melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 15/ with B thickness degree ratio
85.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Comparative example 2
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 24.5%, is contained
Er2O3The concentration of up-conversion phosphor is 10.5%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 10/ with B thickness degree ratio
90.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Comparative example 3
Respectively by Y2O3And Er2O3Slurry is made by medium of distilled water, slurry suction filtration is dried to obtain powder after stirring, ground
It is heat-treated after mill, rises to 600 DEG C from room temperature and be incubated, is obtained comprising Yb after cooling2O3The upper conversion of rare earth oxide is glimmering
Light powder and comprising Er2O3The up-conversion phosphor of rare earth oxide.
To be synthesized using high temperature solid-state method comprising Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide is with poly- to benzene
Naphthalate polyester slice is well mixed, and makes finally to contain Yb2O3The concentration of up-conversion phosphor is 36%, is contained
Er2O3The concentration of up-conversion phosphor is 4%, adds A layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By polyethylene terephthalate polyester section, TPO incompatible resin and mother containing barium sulfate particles
Material section is well mixed, makes the concentration of final incompatible resin be 5%, and the concentration of barium sulfate particles is 40%, by what is mixed
Material adds B layers of double screw extruder melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, the respective extrusion capacity of A/B extruders is adjusted, melt is cast
Onto a chill roll for rotating, the casting sheet of unformed A/B double-layer structures is formed so that A layers is 5/ with B thickness degree ratio
95.After this casting sheet is preheated, carrying out longitudinal stretching multiple with 3.2 multiplying power successively carries out longitudinal stretching, with 3.7 multiplying power
Carry out cross directional stretch, by biaxial tension be orientated polymer film thermal finalization under 225 DEG C of temperature conditionss, eventually pass through cooling,
The processes such as winding, obtain high reflectance antireflection film sample, test its performance.
Table 1：The performance of each embodiment
Thickness testing method is as follows：
Take that 20cm is long, print 2cm wide uses desk-top THICKNESS GAUGE FOR THE MEASUREMENT OF THIN FOILS to measure 10 thickness of point, calculates average value.
A layers of thickness testing method is as follows：
Make under print cross section sample is placed in electron microscope and observe, the length testing work carried using electron microscope
Tool, the thickness of A layers of measurement, takes 3 groups of average values of test data.
Reflectivity test method is as follows：
Reflectance coating print is flat in spectral photometric colour measuring meter (KONICA MINOLTA CM-5) and tests 400~700nm wavelength
Under the conditions of reflectivity, every 10nm record one group of data, calculate each group of data average value be a test data.Each reflectance coating
Print parallel testing 3 times, the average value for calculating 3 times is final result.
Claims (7)
1. a kind of high reflectance reflectance coating, it is characterised in that also described including being covered in including reflecting layer of the inside containing hole
The optical waveguide layer of reflecting layer upper surface, the optical waveguide layer contains up-conversion particle, and the up-conversion particle is using height
Warm Solid phase synthesis contain Yb3+And Er3+Up-conversion phosphor.
2. high reflectance reflectance coating according to claim 1, it is characterised in that the up-conversion particle is to include
Yb2O3And Er2O3The up-conversion phosphor of rare earth oxide.
3. high reflectance reflectance coating according to claim 2, it is characterised in that Yb in the up-conversion phosphor2O3Rare earth
Oxide and Er2O3The part by weight of rare earth oxide is 1:4~4:1.
4. high reflectance reflectance coating according to claim 3, it is characterised in that the optical waveguide layer thickness accounts for reflectance coating total thickness
The 1%~20% of degree, reflector thickness accounts for the 80%~99% of reflectance coating gross thickness.
5. high reflectance reflectance coating according to claim 4, it is characterised in that the up-conversion particle weight is accounted for leads
The 1%~30% of light layer weight.
6. high reflectance reflectance coating according to claim 5, it is characterised in that the gross thickness for leading reflectance coating is 75 μm
~300 μm.
7. high reflectance reflectance coating according to claim 6, it is characterised in that the reflectance coating using two-layer and two-layer with
The method of upper co-extrusion, sheet is extruded by die head, is obtained through slab, biaxial tension, thermal finalization and winding.
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Application publication date: 20170613 |