CN102798913B - PDP (Plasma Display Panel) light filtering membrane and method for preparing same - Google Patents
PDP (Plasma Display Panel) light filtering membrane and method for preparing same Download PDFInfo
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- CN102798913B CN102798913B CN201210250044.0A CN201210250044A CN102798913B CN 102798913 B CN102798913 B CN 102798913B CN 201210250044 A CN201210250044 A CN 201210250044A CN 102798913 B CN102798913 B CN 102798913B
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Abstract
The invention discloses a PDP (Plasma Display Panel) light filtering membrane capable of realizing low newton ring, static resistance, rigidity addition and antireflection functions simultaneously with only one single coating, and a method for preparing the PDP light filtering membrane, belonging to the field of light filtering devices of the PDP television. The light filtering membrane comprises a transparent plastic basement membrane with precoatings easy to stick on the two surfaces, a functional coating and a light filtering layer; (n2)2=n1*n3 and n2 is greater than n3 and smaller than n1, wherein n1 refers to the refractive index of the plastic basement membrane, while n2 refers to the refractive index of the precoating easy to stick between the plastic basement membrane and the functional coating, and n3 refers to the refractive index of the functional coating and n3 is greater than 1.47 and smaller than 1.60; and the functional coating is prepared from the following raw materials: 5-20% of antistatic particles, 5-40% of rigidity adding particles, 20-40% of a cross-linking agent, 2-8% of a photosensitizer and 30-45% of an organic solvent. The PDP light filtering membrane is capable of realizing low newton ring, static resistance, rigidity addition and antireflection functions simultaneously with only one single coating; and unexpected technical effects are achieved.
Description
Technical field
The invention belongs to the filtering device field of PDP TV, be specifically related to the PDP filter coating and preparation method thereof that a kind of single coating realizes low rainbow line, antistatic, Hardening, antireflection function simultaneously.
Background technology
PDP display technique uses the mode of on-load voltage that the working gas such as neon, xenon of display interior is discharged, thus send the ultraviolet light of specific band, and the ultraviolet excitation luminescent coating of this specific band is utilized to send the display technique of Red Green Blue light.But in the process of PDP display lighting, except producing the visible ray of Red Green Blue, also can produce the near infrared ray to TV remote controller and shutter type 3 D spectacles severe jamming; Secondly the neon of PDP display interior, can produce gold-tinted, have a strong impact on the excitation of picture in PDP discharge process.
Therefore PDP display needs a kind of filtering device being assemblied in display front to shield near infrared ray, reduce neon gold-tinted transmitance, to compensate color.PDP industry uses thick, heavy filter glass to solve optical filtering problem always before, but along with the development of PDP display slimming, on transparent plastic basement membrane, the PDP filter coating of processing and fabricating has replaced filter glass widespread use in PDP display.
If the filter coating be applied on PDP display has obviously rainbow line and scratch, cut, the viewing quality of PDP display can be had a strong impact on; Meanwhile, for avoiding the electronic component of the complex precise in PDP display to be damaged by static electricity, PDP filter coating needs to have anti-static function; Moreover when PDP display application in normal circumstances time, reflected light is comparatively strong, has a strong impact on the bright room contrast of display, and image definition is deteriorated.Therefore there is low rainbow line, antistatic, Hardening, antireflection function the application of filter coating on PDP display is extremely important.
For anti-static function, be at present by by conducting metal, metal oxide particle or conduction organic polymer in conjunction with crosslinking chemical, be coated on PDP filter coating basement membrane, PDP filter coating basement membrane is made to have anti-static function, if but antistatic coating formula is improper, PDP filter coating basement membrane transmittance can be caused to reduce and rainbow line phenomenon obvious, and then cause the transmittance of PDP filter coating to reduce and rainbow line phenomenon obviously, PDP display viewing quality is declined.For Hardening function, be at present by by metal oxide, nonmetal oxide or fluoride particle in conjunction with crosslinking chemical, be coated on PDP filter coating basement membrane, PDP filter coating basement membrane is made to have Hardening function, if but rigidity-increasing dope formula is improper, the transmittance of PDP filter coating basement membrane can be caused to reduce and rainbow line phenomenon obvious, and then cause PDP filter coating transmittance to reduce and rainbow line phenomenon obviously, PDP display viewing quality is declined.In addition, also fewer to the patent of PDP filter coating low rainbow line research at present, the main mode of multilayered optical structures that adopts improves rainbow line usually, but adopts the mode of multilayered optical structures, complex process, and cost is higher; Also patented claim is had to mention only need to add nanoscale bifluoride magnesium, silicon dioxide, titania just can solve rainbow line.
Be in 201010102010.8 at number of patent application, refer to and formulation for coating material improvement is carried out to existing cured film, by adding nano level bifluoride magnesium, silicon dioxide, titania, reduce film surface reflection, and can obviously improve rainbow line, but this patented claim is not mentioned this cured film and whether is had anti-static function.
Be in 200580009509.1 at number of patent application, refer to by Hardening particle, antistatic particle, crosslinking chemical and the photosensitizing agents in adjustment hardening thing Coating material composition, that cured film is possessed is antistatic, Hardening and antireflecting function, but this patented claim is not mentioned this cured film and whether had low rainbow line function.
Be in 200710307601.7 at number of patent application, refer to the principle of rainbow line generation and the principle of solution and antireflection function, in Fig. 1, the optical path difference of the second reflected light in two transparent mediums and the 3rd reflected light, the interference produced is the basic reason that rainbow line occurs, optical path difference must be utilized to solve the interference of above-mentioned two reflected light so rainbow line will be eliminated, according to Fresnel formula, interfere when optical path difference is π even-multiple and strengthen, rainbow line strengthens, when optical path difference is the odd-multiple of π, two light waves are cancelled out each other, rainbow line reduces, in film industry, the shortest optical path difference is selected to carry out optical design, namely when the optical path difference of the second reflected light and the 3rd reflected light is λ/2, rainbow line reduces, reflected light reduces simultaneously, transmitted light increases.This patented claim is the functional layer that stacked refractive index is different successively on base material, and rainbow line is solved to each layer refractive index mode of having certain requirements, but this patented claim realizes Hardening and anti-static function respectively by two functional layers, antistatic, Hardening function cannot be realized on a Rotating fields, and complicated process of preparation, control difficulty is high, and yield is low.
The sandwich construction formed by vacuum coating mode at film surface is refer in patented claim 02147181.9, as long as and have one deck to be mixed by inorganics and organism to form in this sandwich construction, this film just has antireflection function, but this patented claim is not mentioned this film and whether is had low rainbow line, antistatic, Hardening function, and the technical scheme that this patented claim is mentioned is produced under vacuo, working condition is harsh, complicated process of preparation, control difficulty is high, and yield is low.
PDP display needs a kind of PDP filter coating with low rainbow line, antistatic, Hardening, antireflection function, and more need a kind of preparation technology simple, control that difficulty is low, product percent of pass is high, use single coating to realize the PDP filter coating of low rainbow line, antistatic, Hardening, antireflection function.
Summary of the invention
Technical matters to be solved by this invention is to provide the PDP filter coating and preparation method thereof that a kind of single coating realizes low rainbow line, antistatic, Hardening, antireflection function simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: a kind of PDP filter coating, and comprise the two-sided transparent plastic basement membrane being attached with easily adhesion precoated shet, the side of plastic-based film is coated with functional coating, and opposite side is coated with filter layer, (n
2)
2=n
1× n
3and n
1> n
2> n
3, wherein, n
1for the refractive index of transparent plastic basement membrane, n
2for the refractive index of the easy adhesion precoated shet between plastic-based film and functional coating, n
3for the refractive index of functional coating, 1.47 < n
3< 1.60;
Described functional coating is obtained by following raw material by weight ratio: antistatic particle 5 ~ 20%, Hardening particle 5 ~ 40%, crosslinking chemical 20 ~ 40%, photosensitizing agents 2 ~ 8%, organic solvent 30 ~ 45%.
The refractive index of certain material refers to the ratio of light speed in a vacuum and the speed of light in this kind of material.
Wherein, the composition of above-mentioned antistatic particle is the oxide of at least one element in zinc, titanium, tin, indium or antimony.
Wherein, above-mentioned photosensitizing agents is at least one in thiocyanic acid gold ammonium, sodium thiosulfate, 2-chloro thioxanthone, phenyl 2,4,6-trimethylbenzophenone, phenyl 4-methylbenzophenone or 2,4-dialkyl group thioxanthone.
Wherein, in said method, described functional coating is obtained by following raw material by weight ratio: antistatic particle 15 ~ 20%, Hardening particle 8 ~ 17%, crosslinking chemical 22 ~ 35%, photosensitizing agents 2 ~ 8%, organic solvent 33 ~ 42%.
Wherein, in said method, the material of described transparent plastic basement membrane is polyethylene terephthalate.
Wherein, in said method, the composition of described Hardening particle can be at least one in silicon dioxide, aluminium oxide or magnesium fluoride.
Further, the composition of described Hardening particle is silicon dioxide and magnesium fluoride.
Wherein, in said method, the granularity of described antistatic particle and Hardening particle is 0.001 ~ 2um.
Further, the granularity of described antistatic particle and Hardening particle is 0.001 ~ 0.1um.
Wherein, in said method, described crosslinking chemical can be polyisocyanates, propane diamine, MOCA, polyglycol, polypropylene glycol, trimethylolpropane, polypropylene glycol glycidol ether, styrene, a-methyl styrene, vinyl cyanide, acrylic acid, methacrylic acid, glyoxal, aziridine, ethyl orthosilicate, methyl silicate, trimethoxy silane, p-toluenesulfonic acid, paratoluensulfonyl chloride, diacrylate-1, 4-butanediol ester, Ethylene glycol dimethacrylate, TAC, butyl acrylate, HEA, HPA, HEMA, HPMA, MMA, cumyl peroxide, peroxidating two 2, 4-dichloro-benzoyl, aluminium isopropoxide, zinc acetate, titanium acetylacetone, aziridine crosslinker SAC-100, multi-functional polycarbodiimide class crosslinking chemical UN-557, at least one in blocked crosslinkers UN-125F or isocyanates crosslinking chemical UN-820.
Further, described crosslinking chemical is butyl acrylate or diacrylate-BDO ester.
Wherein, in said method, described organic solvent can be at least one in benzene,toluene,xylene, pentane, hexane, octane, cyclohexane, cyclohexanone, toluene cyclohexanone, chlorobenzene, dichloro-benzenes, methylene chloride, methyl alcohol, ethanol, isopropyl alcohol, ether, epoxypropane, methyl acetate, ethyl acetate, propyl acetate, acetone, espeleton, methylisobutylketone, glycol monoethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, acetonitrile, pyridine or phenol.
Further, described organic solvent is at least one in ether, ethyl acetate, cyclohexane or cyclohexanone.
The preparation method of above-mentioned PDP filter coating, be uniformly coated on after antistatic particle, Hardening particle, crosslinking chemical, photosensitizing agents and organic solvent are allocated by weight ratio in the two-sided one side being all attached with the transparent plastic basement membrane of easily adhesion precoated shet, control coating thickness between 1 ~ 6um; Send into evaporation of organic solvent in oven heat after coating, then shoot away into solidification with UV illumination, form functional coating; Then at the another side coating filter layer of transparent plastic basement membrane, obtained PDP filter coating.
The invention has the beneficial effects as follows: the present invention is by limiting transparent plastic basement membrane, the index of refraction relationship of easy adhesion precoated shet and functional coating, reduce to greatest extent according to the rainbow line that interference of light principle utilizes the light that the wavelength of naked eyes visual acuity is 500-600nm by optical path difference to produce, and then realize low rainbow line and the antireflection function of PDP filter coating, simultaneously, the antistatic of PDP filter coating and Hardening function is realized by the composition of attributive function coating compound and proportioning, therefore, the invention provides one simple function coating and realize low rainbow line simultaneously, antistatic, Hardening, PDP filter coating of antireflection function and preparation method thereof, achieve unexpected technique effect.
Accompanying drawing explanation
Fig. 1 is the film layer structure schematic diagram of low rainbow line film;
Fig. 2 is the film layer structure schematic diagram of the PDP filter coating that the present invention relates to;
Fig. 3 is that the present invention reduces rainbow line principle schematic.
Be labeled as in figure: 1 is incident light, and 21 is the first reflected light, and 22 is the second reflected light, 23 is the 3rd reflected light, 24 is coherent light beam, and 110 is antireflection layer, and 120 is conductive layer, 130 is Hardening layer, 140 is plastic-based film, and 210 is functional coating, and 220 is precoated shet of easily adhering, 230 is transparent plastic basement membrane, and 240 is filter layer.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
A kind of PDP filter coating, comprise the two-sided transparent plastic basement membrane being attached with easily adhesion precoated shet, the side of plastic-based film is coated with functional coating, and opposite side is coated with filter layer, (n
2)
2=n
1× n
3and n
1> n
2> n
3, wherein, n
1for the refractive index of transparent plastic basement membrane, n
2for the refractive index of the easy adhesion precoated shet between plastic-based film and functional coating, n
3for the refractive index of functional coating, 1.47 < n
3< 1.60;
Described functional coating 210 is obtained by following raw material by weight ratio: antistatic particle 5 ~ 20%, Hardening particle 5 ~ 40%, crosslinking chemical 20 ~ 40%, photosensitizing agents 2 ~ 8%, organic solvent 30 ~ 45%.
Wherein, the composition of described antistatic particle can be the oxide of at least one element in zinc, titanium, tin, indium or antimony.
Wherein, the composition of described Hardening particle can be at least one in silicon dioxide, aluminium oxide or magnesium fluoride.
Wherein, described crosslinking chemical can be polyisocyanates, propane diamine, MOCA, polyglycol, polypropylene glycol, trimethylolpropane, polypropylene glycol glycidol ether, styrene, a-methyl styrene, vinyl cyanide, acrylic acid, methacrylic acid, glyoxal, aziridine, ethyl orthosilicate, methyl silicate, trimethoxy silane, p-toluenesulfonic acid, paratoluensulfonyl chloride, diacrylate-1, 4-butanediol ester, Ethylene glycol dimethacrylate, TAC, butyl acrylate, HEA, HPA, HEMA, HPMA, MMA, cumyl peroxide, peroxidating two 2, 4-dichloro-benzoyl, aluminium isopropoxide, zinc acetate, titanium acetylacetone, aziridine crosslinker SAC-100, multi-functional polycarbodiimide class crosslinking chemical UN-557, at least one in blocked crosslinkers UN-125F or isocyanates crosslinking chemical UN-820.
Wherein, described photosensitizing agents can be at least one in thiocyanic acid gold ammonium, sodium thiosulfate, 2-chloro thioxanthone, phenyl 2,4,6-trimethylbenzophenone, phenyl 4-methylbenzophenone or 2,4-dialkyl group thioxanthone.
Wherein, described organic solvent can be at least one in benzene,toluene,xylene, pentane, hexane, octane, cyclohexane, cyclohexanone, toluene cyclohexanone, chlorobenzene, dichloro-benzenes, methylene chloride, methyl alcohol, ethanol, isopropyl alcohol, ether, epoxypropane, methyl acetate, ethyl acetate, propyl acetate, acetone, espeleton, methylisobutylketone, glycol monoethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, acetonitrile, pyridine or phenol.
Of the present inventionly realize low rainbow line, technical know-how that antireflection function adopts is: (n
2)
2=n
1× n
3and n
1> n
2> n
3time, interfere dark line phenomenon the strongest, rainbow line phenomenon is the most weak, and anti-reflective effect is best; The present invention utilizes optical path difference to eliminate rainbow line (as Fig. 2) according to interference of light principle; PDP filter coating utilizes reflection and the refraction of functional coating 210 and easy adhesion precoated shet 220 pairs of incident lights, obtain coherent light beam at reflection direction, thus produce coherent light beam 24, eliminate specific wavelength second reflected light 22 and the 3rd reflected light 23, and then reduce rainbow line, reduce reflected light.In production application, the rainbow line that visible ray produces thoroughly can not be eliminated, rainbow line can only be reduced.The present invention, according to optical principle, draws coating optimum index, is that the rainbow line of the light generation of 500-600nm reduces to greatest extent, and then realizes low rainbow line and the antireflection function of PDP filter coating by the wavelength of naked eyes visual acuity.
The content of antistatic particle is between 5% to 20%, if lower than 5%, coating anti-static function is too weak; If higher than 20%, the formability of coating is not enough.The content of Hardening particle is lower than 5%, and coating does not have enough hardness, and film rainbow line is obvious; When content higher than 40% time, the formability of coating is not enough; Cause coating top layer to occur serious uneven, light is irradiated to top layer, causes birefringent phenomenon, increases the weight of rete rainbow line simultaneously.The content of photosensitizing agents is lower than 2%, and curing dose is inadequate, can not fully solidify; Higher than 8%, under-exposed in processing pitch time, coating can not fully solidify.Organic solvent content lower than 30% time, dope viscosity is excessive, and coating homogeneity not easily ensures.If when organic solvent content is greater than 45%, after drying, wet film and build deviation are comparatively large, cause coating precision wayward, affect the low rainbow line of PDP filter coating, antistatic, Hardening, antireflection function for coating.
The oxide particle good conductivity of zinc, titanium, tin, indium or antimony, and sull transmitance is high, therefore, the composition of the antistatic particle of the present invention is the oxide of at least one element in zinc, titanium, tin, indium or antimony.
Preferably, in order to fully ensure the low rainbow line of PDP filter coating, antistatic, Hardening, antireflection function, in said method, described functional coating is obtained by following raw material by weight ratio: antistatic particle 15 ~ 20%, Hardening particle 8 ~ 17%, crosslinking chemical 22 ~ 35%, photosensitizing agents 2 ~ 8%, organic solvent 33 ~ 42%.
The material of transparent plastic basement membrane 230 of the present invention can be polymethylmethacrylate (PMMA), polyethylene terephthalate (PET), polycarbonate (PC), Triafol T (TAC) or polyethersulfone (PES), the PDP filter coating better quality obtained to make the present invention, in said method, the material of described transparent plastic basement membrane is preferably polyethylene terephthalate.
The hardness of silicon dioxide and magnesium fluoride Hardening particle is better, and refractive index is lower, and also has good light transmission, can not affect the transmittance of coating, and therefore, in said method, the composition of described Hardening particle is preferably silicon dioxide and magnesium fluoride.
Preferably, in said method, the granularity of described antistatic particle and Hardening particle is 0.001 ~ 2um.If granularity is more than 2um, the transmittance decline of gained PDP filter coating or the surface condition of film can be caused to be deteriorated, to increase the weight of rainbow line, reduce hardness.
Further, the granularity of described antistatic particle and Hardening particle is 0.001 ~ 0.1um.
Preferably, in said method, described crosslinking chemical is butyl acrylate or diacrylate-BDO ester.
Preferably, in said method, described organic solvent is at least one in ether, ethyl acetate, cyclohexane or cyclohexanone.
The preparation method of above-mentioned PDP filter coating, be uniformly coated on after antistatic particle, Hardening particle, crosslinking chemical, photosensitizing agents and organic solvent are allocated by weight ratio in the two-sided one side being all attached with the transparent plastic basement membrane of easily adhesion precoated shet, control coating thickness between 1 ~ 6um; Send into evaporation of organic solvent in oven heat after coating, then shoot away into solidification with UV illumination, form functional coating; Then at the another side coating filter layer of transparent plastic basement membrane, obtained PDP filter coating.
Below by embodiment, the specific embodiment of the present invention is further described, but therefore protection scope of the present invention is not limited among enforcement.
Embodiment one
Adopt the commercially available optics PET basement membrane A with two-sided easy adhesion precoated shet, its two-sided easy adhesion precoated shet refractive index is all 1.57, PET basement membrane refractive index is 1.63.According to formula (n
2)
2=n
1× n
3, there is needed for drawing low rainbow line, antistatic, Hardening, antireflection functional coating optimum index be 1.51.
By adjustment coated coating material proportioning, make coat refractive index be 1.51, it is as follows that massfraction proportioning pressed by coating:
Hardening particle silica 1 0%, crosslinking chemical butyl acrylate 30%, photosensitizing agents phenyl 4-methylbenzene first 3%, antistatic particle indium oxide is 15%, solvent ether 30%, dimethylbenzene 12%.
Coating thickness controls at 5um ± 10%.
First silicon dioxide and tin-doped indium oxide are fully dissolved in ether; Then butyl acrylate and phenyl 4-methylbenzene first are fully mixed in the closed container of isolated illumination; Again by front two groups of potpourris, fully mix with dimethylbenzene together in closed container, be configured to the coating needed.Deployed coating is added accurate coating apparatus, and adjustment coating thickness is 5um, is coated on by coating in the one side of optics PET basement membrane equably, ensures that coating thickness trueness error is within 10%.After accurate coating apparatus completes coating, this optics PET film enters tunnel type baking oven immediately, because of ether and dimethylbenzene fusing point gap larger, in tunnel type baking oven, both evaporation rates are different, during for lowering organic solvent volatilization, surface tension is on the impact of coating surface planarization, need baking oven first with low-temperature bake optics PET basement membrane, high-temperature baking optics PET basement membrane is being used again after one is cut off, after completing the volatilization of organic solvent in an oven, re-use the solidification that mercury high-pressure lamp completes this optics PET film.Finally at the filter layer containing near infrared absorbing dyestuff, neon yellow light absorbing dye, color compensating functional dye that the another side coating 25um of this optics PET film is thick, complete the preparation of PDP filter coating.
Through lot of experiment validation, when this filter coating is applied on PDP display, by visual inspection, do not observe obvious rainbow line; Adopt Hiresta MCP-HT450 high impedance analyser, according to JIS K 6911-1995 testing standard, recording sheet resistivity is 2.56 × 10
10; Adopt Heidon 18L cut measuring instrument, according to JIS K5400 testing standard, skin hardness reaches 3H; Adopt Varian Cary 5000 ultraviolet-visible spectrophotometer, according to GB/T 5317.2 testing standard, recording reflectivity is 4.0%, meets the technical requirement of PDP display.
Embodiment two
Adopt the commercially available optics PET basement membrane B with two-sided easy adhesion precoated shet, its two-sided easy adhesion precoated shet refractive index is all 1.55, PET refractive index is 1.61.According to theory calculate, there is needed for drawing low rainbow line, antistatic, Hardening, antireflection functional coating optimum index is 1.49.
By adjustment coated coating material proportioning, make coat refractive index be 1.49, coating formula is as follows:
Hardening particle magnesium fluoride 17%; Crosslinking chemical diacrylate-BDO ester 22%; Photosensitizing agents thiocyanic acid gold ammonium 5%; Antistatic particle indium oxide is 18%; Solvent ethyl acetate 28%, butanone 10%.
Coating thickness controls at 5um ± 10%.
First silicon dioxide and indium oxide are fully dissolved in ethyl acetate; Then diacrylate-BDO ester and thiocyanic acid gold ammonium are fully mixed in the closed container of isolated illumination; Finally again by front two groups of potpourris, fully mix with butanone together in closed container, be configured to the coating needed.Deployed coating is added accurate coating apparatus, and adjustment coating thickness is 5um, is coated on by coating in the one side of optics PET basement membrane equably, ensures that coating thickness trueness error is within 10%.After accurate coating apparatus completes coating, this optics PET basement membrane enters tunnel type baking oven immediately, because of butanone and ethyl acetate boiling point close, in tunnel type baking oven, two kind organic solvent evaporation rates are close, so optics PET basement membrane can be toasted with same temperature, after completing the volatilization of organic solvent in an oven, re-use the solidification that mercury high-pressure lamp completes this optics PET basement membrane.Finally at the filter layer containing near infrared absorbing dyestuff, neon yellow light absorbing dye, color compensating functional dye that the another side coating 25um of this optics PET film is thick, complete the preparation of PDP filter coating.
Through lot of experiment validation, when this PDP filter coating is applied on PDP display, by visual inspection, do not observe obvious rainbow line; Adopt Hiresta MCP-HT450 high impedance analyser, according to JIS K 6911-1995 testing standard, recording sheet resistivity is 1.36 × 10
10; Adopt Heidon 18L cut measuring instrument, according to JIS K5400 testing standard, skin hardness reaches 2H; Adopt Varian Cary 5000 ultraviolet-visible spectrophotometer, according to GB/T 5317.2 testing standard, recording reflectivity is 2.9%, meets the technical requirement of PDP display.
Embodiment three
Adopt the commercially available optics PET basement membrane C with two-sided easy adhesion precoated shet, its two-sided easy adhesion precoated shet refractive index is all 1.60, PET refractive index is 1.66.According to theory calculate, there is needed for drawing low rainbow line, antistatic, Hardening, antireflection functional coating optimum index is 1.54.
By adjustment coated coating material proportioning, make coat refractive index be 1.54, coating formula is as follows:
Hardening particle magnesium fluoride 10%, silicon dioxide is 5%; Crosslinking chemical acrylic acid is 25%; Photosensitizing agents 2-chloro thioxanthone is 5%; Antistatic particle zinc paste is 10%, and indium oxide is 8%; Solvent ethyl acetate is 37%.
Preparation process is with embodiment two.
Through lot of experiment validation, when this PDP filter coating is applied on PDP display, by visual inspection, do not observe obvious rainbow line; Adopt Hiresta MCP-HT450 high impedance analyser, according to JIS K 6911-1995 testing standard, recording sheet resistivity is 2.89 × 10
10; Adopt Heidon 18L cut measuring instrument, according to JIS K5400 testing standard, skin hardness reaches 2H; Adopt Varian Cary 5000 ultraviolet-visible spectrophotometer, according to GB/T 5317.2 testing standard, recording reflectivity is 3.8%, meets the technical requirement of PDP display.
Embodiment four
Adopt the commercially available optics PET basement membrane D with two-sided easy adhesion precoated shet, its two-sided easy adhesion precoated shet refractive index is all 1.62, PET refractive index is 1.66.According to theory calculate, there is needed for drawing low rainbow line, antistatic, Hardening, antireflection functional coating optimum index is 1.58.
By adjustment coated coating material proportioning, make coat refractive index be 1.58, coating formula is as follows:
Hardening particle magnesium fluoride 5%, silicon dioxide is 8%; Crosslinking chemical acrylic acid is 30%; Photosensitizing agents 2-chloro thioxanthone is 6%; Antistatic particle zinc paste is 20%; Solvent ethyl acetate is 34%.
Preparation process is with embodiment two.
Through lot of experiment validation, when this PDP filter coating is applied on PDP display, by visual inspection, do not observe obvious rainbow line; Adopt Hiresta MCP-HT450 high impedance analyser, according to JIS K 6911-1995 testing standard, recording sheet resistivity is 3.18 × 10
10; Adopt Heidon 18L cut measuring instrument, according to JIS K5400 testing standard, skin hardness reaches 2H; Adopt Varian Cary 5000 ultraviolet-visible spectrophotometer, according to GB/T 5317.2 testing standard, recording reflectivity is 3.2%, meets the technical requirement of PDP display.
Embodiment five
Adopt the commercially available optics PET basement membrane E with two-sided easy adhesion precoated shet, its two-sided easy adhesion precoated shet refractive index is all 1.61, PET refractive index is 1.66.According to theory calculate, there is needed for drawing low rainbow line, antistatic, Hardening, antireflection functional coating optimum index is 1.57.
By adjustment coated coating material proportioning, make coat refractive index be 1.57, coating formula is as follows:
Hardening particle alumina is 9%; Crosslinking chemical butyl acrylate is 35%; Photosensitizing agents phenyl 4-methylbenzophenone 8%; Antistatic particle tin indium oxide is 15%; Solvent ethyl acetate is 33%.
Preparation process is with embodiment two.
Through lot of experiment validation, when this PDP filter coating is applied on PDP display, by visual inspection, do not observe obvious rainbow line; Adopt Hiresta MCP-HT450 high impedance analyser, according to JIS K 6911-1995 testing standard, recording sheet resistivity is 3.02 × 10
10; Adopt Heidon 18L cut measuring instrument, according to JIS K5400 testing standard, skin hardness reaches 2H; Adopt Varian Cary 5000 ultraviolet-visible spectrophotometer, according to GB/T 5317.2 testing standard, recording reflectivity is 3.5%, meets the technical requirement of PDP display.
Claims (9)
1. a PDP filter coating, comprise the two-sided transparent plastic basement membrane being attached with easily adhesion precoated shet, the side of plastic-based film is coated with functional coating, and opposite side is coated with filter layer, it is characterized in that: (n
2)
2=n
1× n
3and n
1> n
2> n
3, wherein, n
1for the refractive index of transparent plastic basement membrane, n
2for the refractive index of the easy adhesion precoated shet between plastic-based film and functional coating, n
3for the refractive index of functional coating, 1.47 < n
3< 1.60;
Described functional coating is obtained by following raw material by weight ratio: antistatic particle 5 ~ 20%, Hardening particle 5 ~ 40%, crosslinking chemical 20 ~ 40%, photosensitizing agents 2 ~ 8%, organic solvent 30 ~ 45%.
2. PDP filter coating according to claim 1, is characterized in that: described functional coating is obtained by following raw material by weight ratio: antistatic particle 15 ~ 20%, Hardening particle 8 ~ 17%, crosslinking chemical 22 ~ 35%, photosensitizing agents 2 ~ 8%, organic solvent 33 ~ 42%.
3. PDP filter coating according to claim 1 and 2, is characterized in that: the material of described transparent plastic basement membrane is polyethylene terephthalate.
4. PDP filter coating according to claim 1 and 2, is characterized in that: the composition of described Hardening particle is silicon dioxide and magnesium fluoride.
5. PDP filter coating according to claim 1 and 2, is characterized in that: the granularity of described antistatic particle and Hardening particle is 0.001 ~ 2um.
6. PDP filter coating according to claim 5, is characterized in that: the granularity of described antistatic particle and Hardening particle is 0.001 ~ 0.1um.
7. PDP filter coating according to claim 1 and 2, is characterized in that: described crosslinking chemical is butyl acrylate or diacrylate-BDO ester.
8. PDP filter coating according to claim 1 and 2, is characterized in that: described organic solvent is at least one in ether, ethyl acetate, cyclohexane or cyclohexanone.
9. the preparation method of the PDP filter coating according to any one of claim 1 to 8, it is characterized in that: be uniformly coated on after antistatic particle, Hardening particle, crosslinking chemical, photosensitizing agents and organic solvent are allocated by weight ratio in the two-sided one side being all attached with the transparent plastic basement membrane of easily adhesion precoated shet, control coating thickness between 1 ~ 6um; Send into evaporation of organic solvent in oven heat after coating, then shoot away into solidification with UV illumination, form functional coating; Then at the another side coating filter layer of transparent plastic basement membrane, obtained PDP filter coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250044.0A CN102798913B (en) | 2012-07-19 | 2012-07-19 | PDP (Plasma Display Panel) light filtering membrane and method for preparing same |
Applications Claiming Priority (1)
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| CN109421334A (en) * | 2017-08-30 | 2019-03-05 | 张家港康得新光电材料有限公司 | Barrier material |
| CN110542940B (en) * | 2019-09-30 | 2024-05-17 | 东莞市光志光电有限公司 | High-brightness optical reflector |
| CN117377571A (en) * | 2022-05-07 | 2024-01-09 | 京东方科技集团股份有限公司 | Anti-reflection laminated structure, manufacturing method thereof, display panel and display device |
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| CN101900841A (en) * | 2009-05-27 | 2010-12-01 | 东丽先端素材株式会社 | Anti-reflection film and polarization plate containing the same |
| CN201866552U (en) * | 2010-09-02 | 2011-06-15 | 吴明番 | Light emitting apparatus covered by optical film layer for LED (light-emitting diode) surface light source |
| CN201974541U (en) * | 2010-11-23 | 2011-09-14 | 吴明番 | Light guide body coated with optical film layers |
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| JP2007326357A (en) * | 2006-05-10 | 2007-12-20 | Fujifilm Corp | Laminated film and image display device |
| TWI406014B (en) * | 2008-10-02 | 2013-08-21 | Eternal Chemical Co Ltd | Composite optical film |
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| CN101900841A (en) * | 2009-05-27 | 2010-12-01 | 东丽先端素材株式会社 | Anti-reflection film and polarization plate containing the same |
| CN201866552U (en) * | 2010-09-02 | 2011-06-15 | 吴明番 | Light emitting apparatus covered by optical film layer for LED (light-emitting diode) surface light source |
| CN201974541U (en) * | 2010-11-23 | 2011-09-14 | 吴明番 | Light guide body coated with optical film layers |
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