CN114265234A - Optical high-transmittance diffusion film for liquid crystal display backlight module - Google Patents
Optical high-transmittance diffusion film for liquid crystal display backlight module Download PDFInfo
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- CN114265234A CN114265234A CN202111380796.4A CN202111380796A CN114265234A CN 114265234 A CN114265234 A CN 114265234A CN 202111380796 A CN202111380796 A CN 202111380796A CN 114265234 A CN114265234 A CN 114265234A
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 178
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 title claims abstract description 22
- 238000002834 transmittance Methods 0.000 title claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 126
- 238000000576 coating method Methods 0.000 claims abstract description 126
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000843 powder Substances 0.000 claims abstract description 38
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000010453 quartz Substances 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 28
- 239000000661 sodium alginate Substances 0.000 claims abstract description 28
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 28
- 239000011787 zinc oxide Substances 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 100
- 238000005507 spraying Methods 0.000 claims description 65
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 54
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 50
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 50
- 229910052710 silicon Inorganic materials 0.000 claims description 50
- 239000010703 silicon Substances 0.000 claims description 50
- 239000004408 titanium dioxide Substances 0.000 claims description 50
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 239000002202 Polyethylene glycol Substances 0.000 claims description 27
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 27
- 229920001223 polyethylene glycol Polymers 0.000 claims description 27
- 239000011592 zinc chloride Substances 0.000 claims description 27
- 235000005074 zinc chloride Nutrition 0.000 claims description 27
- 239000011230 binding agent Substances 0.000 claims description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 25
- 239000004115 Sodium Silicate Substances 0.000 claims description 25
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 25
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 25
- 239000007822 coupling agent Substances 0.000 claims description 25
- 239000000835 fiber Substances 0.000 claims description 25
- 239000000395 magnesium oxide Substances 0.000 claims description 25
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 25
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 25
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 25
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 25
- 239000004800 polyvinyl chloride Substances 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 25
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 25
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 25
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 25
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 25
- 238000005303 weighing Methods 0.000 claims description 25
- 239000000853 adhesive Substances 0.000 claims description 19
- 230000001070 adhesive effect Effects 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000011049 filling Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 10
- 239000010426 asphalt Substances 0.000 claims description 10
- 239000001913 cellulose Substances 0.000 claims description 10
- 229920002678 cellulose Polymers 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000011118 polyvinyl acetate Substances 0.000 claims description 10
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000011269 tar Substances 0.000 claims description 10
- 239000003973 paint Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Application Of Or Painting With Fluid Materials (AREA)
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Abstract
The invention discloses an optical high-transmittance diffusion film for a liquid crystal display backlight module, which comprises a diffusion film substrate, a high-temperature-resistant coating and a shielding coating, wherein the high-temperature-resistant coating and the shielding coating uniformly cover the surface of the diffusion film substrate. The high-temperature-resistant coating is covered on the diffusion film substrate, so that the high-temperature-resistant performance of the diffusion film is effectively enhanced, the diffusion film can be quickly adapted to a long-time high-temperature environment for use, the defect of damage to the diffusion film in the high-temperature environment is avoided, the high-temperature-resistant coating improves the corrosion resistance while considering the high-temperature resistance under the condition of mixing quartz powder, zinc oxide, sodium alginate and aluminum powder, the diffusion film is kept in a good working state, the diffusion film can be externally protected by overlapping the shielding coating on the diffusion film, external electromagnetic interference and signal interference can be shielded, the diffusion film is prevented from being influenced by external signals and the like, and the stability of the diffusion film is enhanced.
Description
Technical Field
The invention relates to the technical field of diffusion films, in particular to an optical high-transmittance diffusion film for a liquid crystal display backlight module.
Background
The diffusion barrier mainly refers to the backlight source part who is applied to the LCD module, and light sees through the diffusion barrier who uses PET as the substrate, can pass in the medium different with the refracting index for light takes place many refraction, reflection and scattering's phenomenon, and correctable light becomes even area source so that reach the effect of optical diffusion, but current diffusion barrier high temperature resistance performance is not good, very easily causes the damage ageing of diffusion barrier.
The prior art has the following defects: the existing diffusion film is poor in high-temperature resistance, damage and aging of the diffusion film are easily caused when the existing diffusion film works in a long-time high-temperature state, the service life of the diffusion film is shortened, the overall display effect is influenced, the overall use cost is high, the existing diffusion film is poor in shielding effect, and interference of external electromagnetic signals and the like cannot be shielded, so that the use effect of the diffusion film is influenced, and the existing diffusion film cannot effectively shield ultraviolet rays.
Disclosure of Invention
The invention aims to solve the problems that the existing diffusion film has poor high-temperature resistance, is easy to damage and age when working under a long-time high-temperature state, shortens the service life of the diffusion film, influences the overall display effect, has high overall use cost, has poor shielding effect and cannot shield the interference of external electromagnetic signals and the like.
In order to achieve the purpose, the invention provides the following technical scheme: the optical high-transmittance diffusion film for the liquid crystal display backlight module comprises a diffusion film substrate, a high-temperature-resistant coating and a shielding coating, wherein the high-temperature-resistant coating and the shielding coating uniformly cover the surface of the diffusion film substrate;
the composition comprises the following components in parts by mass:
the high-temperature resistant coating consists of 15-25 parts of silicon carbide, 5-7 parts of magnesium oxide, 10-15 parts of aluminum oxide, 3-5 parts of polyvinyl chloride, 8-11 parts of sodium silicate, 8-10 parts of silicon micropowder, 6-8 parts of calcium carbonate and a binder;
the shielding coating is composed of 5-10 parts of titanium dioxide, 50-65 parts of organic silicon resin, 5-8 parts of copper powder, 3-6 parts of graphite powder, 5-8 parts of coupling agent and 4-7 parts of aluminum silicate fiber.
Preferably, the composition also comprises the following components in parts by mass: 25-40 parts of quartz powder, 3-5 parts of zinc oxide, 6-8 parts of sodium alginate, 8-13 parts of aluminum powder and 1-3 parts of titanium dioxide.
Preferably, the composition comprises the following components in parts by mass: the high-temperature-resistant coating consists of 15-25 parts of silicon carbide, 5-7 parts of magnesium oxide, 10-15 parts of aluminum oxide, 3-5 parts of polyvinyl chloride, 8-11 parts of sodium silicate, 8-10 parts of silicon micropowder, 6-8 parts of calcium carbonate, a binder, 25-40 parts of quartz powder, 3-5 parts of zinc oxide, 6-8 parts of sodium alginate, 8-13 parts of aluminum powder and 1-3 parts of titanium dioxide.
Preferably, the composition comprises the following components in parts by mass: the high-temperature-resistant coating is composed of 15-25 parts of silicon carbide, 5-7 parts of magnesium oxide, 10-15 parts of aluminum oxide, 3-5 parts of polyvinyl chloride, 8-11 parts of sodium silicate, 8-10 parts of silicon micropowder, 6-8 parts of calcium carbonate, a binder, 25-40 parts of quartz powder, 3-5 parts of zinc oxide, 6-8 parts of sodium alginate, 8 parts of aluminum powder and 1 part of titanium dioxide.
Preferably, the composition also comprises the following components in parts by mass: 3-6 parts of polyethylene glycol, 2-3 parts of zinc chloride and 0.5-1 part of siloxane.
Preferably, the composition comprises the following components in parts by mass: the shielding coating is composed of 5-10 parts of titanium dioxide, 50-65 parts of organic silicon resin, 5-8 parts of copper powder, 3-6 parts of graphite powder, 5-8 parts of coupling agent, 4-7 parts of aluminum silicate fiber, 3 parts of polyethylene glycol, 2 parts of zinc chloride and 0.5-1 part of siloxane.
Preferably, the composition comprises the following components in parts by mass: the shielding coating is composed of 5-10 parts of titanium dioxide, 50-65 parts of organic silicon resin, 5-8 parts of copper powder, 3-6 parts of graphite powder, 5-8 parts of coupling agent, 4-7 parts of aluminum silicate fiber, 5 parts of polyethylene glycol, 2.5 parts of zinc chloride and 0.5-1 part of siloxane.
Preferably, the composition comprises the following components in parts by mass: the shielding coating is composed of 5-10 parts of titanium dioxide, 50-65 parts of organic silicon resin, 5-8 parts of copper powder, 3-6 parts of graphite powder, 5-8 parts of coupling agent, 4-7 parts of aluminum silicate fiber, 6 parts of polyethylene glycol, 3 parts of zinc chloride and 0.5-1 part of siloxane.
Preferably, the binder comprises the following components in parts by mass: 0.5-1 part of ammonium polyvinyl acetate, 0.8-1.4 parts of cellulose, 8-13 parts of asphalt powder, 8-12 parts of tar and 3-6 parts of sodium hydroxide.
A preparation method of an optical high-transmittance diffusion film for a liquid crystal display backlight module comprises the following steps:
s1, preparing a high-temperature resistant coating: weighing silicon carbide, magnesium oxide, aluminum oxide, polyvinyl chloride, sodium silicate, silicon micropowder and calcium carbonate according to parts by weight for later use, then correspondingly weighing quartz powder, zinc oxide, sodium alginate, aluminum powder and titanium dioxide according to parts by weight for later use, placing the silicon carbide, the magnesium oxide, the aluminum oxide, the polyvinyl chloride, the sodium silicate, the silicon micropowder and the calcium carbonate in a beaker, weighing 80ml of distilled water by using a 100ml measuring cup, heating the beaker to 60-80 ℃ in a water bath heating tank, continuously stirring the mixture in the beaker by using a stirrer, sequentially adding the quartz powder, the zinc oxide, the sodium alginate, the aluminum powder and the titanium dioxide in the subsequent stirring process, and then standing the mixture for 30-40min for later use.
S2, preparing a binder: weighing ammonium polyvinyl acetate, cellulose, asphalt powder, tar and sodium hydroxide in parts by weight for later use, synchronously conveying the materials into a mixing device, adding a proper amount of distilled water, fully mixing the internal components, heating the raw materials in the mixing process to raise the temperature, ensuring the uniform mixing of the materials, and finally preparing the binder for later use.
S3, spraying of the high-temperature-resistant coating: preheating a diffusion film substrate, conveying the diffusion film substrate to a spraying machine, firstly, filling the adhesive prepared in S2 into the spraying machine, spraying the adhesive on the surface of the diffusion film by using a first unit nozzle of the spraying machine, simultaneously filling a proper amount of high-temperature-resistant coating into the spraying machine, spraying the high-temperature-resistant coating to cover the surface of the diffusion film by using a second unit nozzle of the spraying machine, improving the bonding strength of the high-temperature-resistant coating and the diffusion film under the holding of the adhesive, and then, curing the diffusion film sprayed with the high-temperature-resistant coating by using an ultraviolet instrument, so that the bonding precision of the diffusion film and the diffusion film is enhanced, and the obtained diffusion film is prepared for later use.
S4, preparing a shielding coating: weighing titanium dioxide, organic silicon resin, copper powder, graphite powder, a coupling agent, aluminum silicate fiber, polyethylene glycol, zinc chloride and siloxane in parts by weight for later use, then conveying the raw materials of the components into a stirrer to stir and mix at the speed of 200-.
S5, spraying of the shielding coating: and (3) conveying the diffusion film obtained in the step (S3) to a spraying machine again, filling the shielding coating obtained in the step (S4) into the spraying machine, uniformly and repeatedly spraying the shielding coating on the surface of the diffusion film by using a third unit spray head of the spraying machine, and curing the diffusion film by using an ultraviolet instrument again to enable the shielding coating to be cured on the surface of the diffusion film to prepare the diffusion film.
S6, finished product detection: and (4) detecting the thickness of the diffusion film prepared in the step S5, detecting the flatness of the surface of the diffusion film by using an instrument, and rolling and warehousing the diffusion film after detection.
The invention has the technical effects and advantages that:
1. according to the invention, the high-temperature-resistant coating is covered on the diffusion film substrate, so that the high-temperature-resistant performance of the diffusion film is effectively enhanced, the diffusion film can be quickly adapted to a long-time high-temperature environment for use, the defect of damage of the diffusion film in the high-temperature environment is avoided, the bonding effect of the high-temperature-resistant layer is enhanced through the cooperation of the bonding agent, the falling-off condition of the high-temperature-resistant coating is avoided, and the high-temperature-resistant coating improves the corrosion resistance while considering the high-temperature resistance under the mixing of quartz powder, zinc oxide, sodium alginate and aluminum powder, keeps the diffusion film in a good working state, and improves the overall display effect.
2. According to the invention, the shielding coating is overlaid on the diffusion film, so that the diffusion film can be externally protected, external electromagnetic interference and signal interference can be shielded, external signals and the like are prevented from affecting the diffusion film, the stability of the diffusion film is enhanced, the diffusion film is not easily interfered by the external, the functionality of the shielding coating is enriched under the assistance of the mixing of polyethylene glycol, zinc chloride and siloxane, the ultraviolet shielding function is added on the basis of ensuring the original shielding performance, the damage of the diffusion film is reduced, and the external ultraviolet can be shielded and blocked.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The optical high-transmittance diffusion film for the liquid crystal display backlight module comprises a diffusion film substrate, a high-temperature-resistant coating and a shielding coating, wherein the high-temperature-resistant coating and the shielding coating uniformly cover the surface of the diffusion film substrate;
the composition comprises the following components in parts by mass:
the high-temperature-resistant coating consists of 15 parts of silicon carbide, 5 parts of magnesium oxide, 10 parts of aluminum oxide, 3 parts of polyvinyl chloride, 8 parts of sodium silicate, 8 parts of silicon micropowder, 6 parts of calcium carbonate and a binder;
the shielding coating is composed of 5 parts of titanium dioxide, 50 parts of organic silicon resin, 5 parts of copper powder, 3 parts of graphite powder, 5 parts of coupling agent and 4 parts of aluminum silicate fiber.
The paint also comprises the following components in parts by mass: 25 parts of quartz powder, 3 parts of zinc oxide, 6 parts of sodium alginate, 8 parts of aluminum powder and 1 part of titanium dioxide.
Comprises the following components in parts by mass: the high-temperature-resistant coating consists of 15 parts of silicon carbide, 5 parts of magnesium oxide, 10 parts of aluminum oxide, 3 parts of polyvinyl chloride, 8 parts of sodium silicate, 8 parts of silicon micropowder, 6 parts of calcium carbonate, a binder, 25 parts of quartz powder, 3 parts of zinc oxide, 6 parts of sodium alginate, 8 parts of aluminum powder and 1 part of titanium dioxide.
Comprises the following components in parts by mass: the high-temperature-resistant coating consists of 15 parts of silicon carbide, 5 parts of magnesium oxide, 10 parts of aluminum oxide, 3 parts of polyvinyl chloride, 8 parts of sodium silicate, 8 parts of silicon micropowder, 6 parts of calcium carbonate, a binder, 25 parts of quartz powder, 3 parts of zinc oxide, 6 parts of sodium alginate, 8 parts of aluminum powder and 1 part of titanium dioxide.
The paint also comprises the following components in parts by mass: 3 parts of polyethylene glycol, 2 parts of zinc chloride and 0.5 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 5 parts of titanium dioxide, 50 parts of organic silicon resin, 5 parts of copper powder, 3 parts of graphite powder, 5 parts of coupling agent, 4 parts of aluminum silicate fiber, 3 parts of polyethylene glycol, 2 parts of zinc chloride and 0.5 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 5 parts of titanium dioxide, 50 parts of organic silicon resin, 5 parts of copper powder, 3 parts of graphite powder, 5 parts of coupling agent, 4 parts of aluminum silicate fiber, 5 parts of polyethylene glycol, 2.5 parts of zinc chloride and 0.5 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 5 parts of titanium dioxide, 50 parts of organic silicon resin, 5 parts of copper powder, 3 parts of graphite powder, 5 parts of coupling agent, 4 parts of aluminum silicate fiber, 6 parts of polyethylene glycol, 3 parts of zinc chloride and 0.5 part of siloxane.
The adhesive comprises the following components in parts by mass: 0.5 part of ammonium polyvinyl acetate, 0.8 part of cellulose, 8 parts of asphalt powder, 8 parts of tar and 3 parts of sodium hydroxide.
A preparation method of an optical high-transmittance diffusion film for a liquid crystal display backlight module comprises the following steps:
s1, preparing a high-temperature resistant coating: weighing silicon carbide, magnesium oxide, aluminum oxide, polyvinyl chloride, sodium silicate, silicon micropowder and calcium carbonate according to parts by weight for later use, then correspondingly weighing quartz powder, zinc oxide, sodium alginate, aluminum powder and titanium dioxide according to parts by weight for later use, placing the silicon carbide, the magnesium oxide, the aluminum oxide, the polyvinyl chloride, the sodium silicate, the silicon micropowder and the calcium carbonate in a beaker, weighing 80ml of distilled water by using a 100ml measuring cup, heating the beaker to 60-80 ℃ in a water bath heating tank, continuously stirring the mixture in the beaker by using a stirrer, sequentially adding the quartz powder, the zinc oxide, the sodium alginate, the aluminum powder and the titanium dioxide in the subsequent stirring process, and then standing the mixture for 30-40min for later use.
S2, preparing a binder: weighing ammonium polyvinyl acetate, cellulose, asphalt powder, tar and sodium hydroxide in parts by weight for later use, synchronously conveying the materials into a mixing device, adding a proper amount of distilled water, fully mixing the internal components, heating the raw materials in the mixing process to raise the temperature, ensuring the uniform mixing of the materials, and finally preparing the binder for later use.
S3, spraying of the high-temperature-resistant coating: preheating a diffusion film substrate, conveying the diffusion film substrate to a spraying machine, firstly, filling the adhesive prepared in S2 into the spraying machine, spraying the adhesive on the surface of the diffusion film by using a first unit nozzle of the spraying machine, simultaneously filling a proper amount of high-temperature-resistant coating into the spraying machine, spraying the high-temperature-resistant coating to cover the surface of the diffusion film by using a second unit nozzle of the spraying machine, improving the bonding strength of the high-temperature-resistant coating and the diffusion film under the holding of the adhesive, and then, curing the diffusion film sprayed with the high-temperature-resistant coating by using an ultraviolet instrument, so that the bonding precision of the diffusion film and the diffusion film is enhanced, and the obtained diffusion film is prepared for later use.
S4, preparing a shielding coating: weighing titanium dioxide, organic silicon resin, copper powder, graphite powder, a coupling agent, aluminum silicate fiber, polyethylene glycol, zinc chloride and siloxane in parts by weight for later use, then conveying the raw materials of the components into a stirrer to stir and mix at the speed of 200-.
S5, spraying of the shielding coating: and (3) conveying the diffusion film obtained in the step (S3) to a spraying machine again, filling the shielding coating obtained in the step (S4) into the spraying machine, uniformly and repeatedly spraying the shielding coating on the surface of the diffusion film by using a third unit spray head of the spraying machine, and curing the diffusion film by using an ultraviolet instrument again to enable the shielding coating to be cured on the surface of the diffusion film to prepare the diffusion film.
S6, finished product detection: and (4) detecting the thickness of the diffusion film prepared in the step S5, detecting the flatness of the surface of the diffusion film by using an instrument, and rolling and warehousing the diffusion film after detection.
Example 2
The optical high-transmittance diffusion film for the liquid crystal display backlight module comprises a diffusion film substrate, a high-temperature-resistant coating and a shielding coating, wherein the high-temperature-resistant coating and the shielding coating uniformly cover the surface of the diffusion film substrate;
the composition comprises the following components in parts by mass:
the high-temperature-resistant coating consists of 20 parts of silicon carbide, 6 parts of magnesium oxide, 12 parts of aluminum oxide, 4 parts of polyvinyl chloride, 9 parts of sodium silicate, 9 parts of silicon micropowder, 7 parts of calcium carbonate and a binder;
the shielding coating is composed of 8 parts of titanium dioxide, 60 parts of organic silicon resin, 7 parts of copper powder, 5 parts of graphite powder, 7 parts of coupling agent and 6 parts of aluminum silicate fiber.
The paint also comprises the following components in parts by mass: 35 parts of quartz powder, 4 parts of zinc oxide, 7 parts of sodium alginate, 10 parts of aluminum powder and 2 parts of titanium dioxide.
Comprises the following components in parts by mass: the high-temperature-resistant coating is composed of 20 parts of silicon carbide, 6 parts of magnesium oxide, 12 parts of aluminum oxide, 4 parts of polyvinyl chloride, 9 parts of sodium silicate, 9 parts of silicon micropowder, 7 parts of calcium carbonate, a binder, 30 parts of quartz powder, 4 parts of zinc oxide, 7 parts of sodium alginate, 10 parts of aluminum powder and 2 parts of titanium dioxide.
Comprises the following components in parts by mass: the high-temperature-resistant coating is composed of 20 parts of silicon carbide, 6 parts of magnesium oxide, 12 parts of aluminum oxide, 4 parts of polyvinyl chloride, 9 parts of sodium silicate, 9 parts of silicon micropowder, 7 parts of calcium carbonate, a binder, 30 parts of quartz powder, 4 parts of zinc oxide, 7 parts of sodium alginate, 8 parts of aluminum powder and 1 part of titanium dioxide.
The paint also comprises the following components in parts by mass: 5 parts of polyethylene glycol, 2.5 parts of zinc chloride and 0.8 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 8 parts of titanium dioxide, 60 parts of organic silicon resin, 7 parts of copper powder, 5 parts of graphite powder, 6 parts of coupling agent, 6 parts of aluminum silicate fiber, 3 parts of polyethylene glycol, 2 parts of zinc chloride and 0.8 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 8 parts of titanium dioxide, 60 parts of organic silicon resin, 7 parts of copper powder, 5 parts of graphite powder, 7 parts of coupling agent, 6 parts of aluminum silicate fiber, 5 parts of polyethylene glycol, 2.5 parts of zinc chloride and 0.8 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 8 parts of titanium dioxide, 60 parts of organic silicon resin, 7 parts of copper powder, 5 parts of graphite powder, 6 parts of coupling agent, 6 parts of aluminum silicate fiber, 6 parts of polyethylene glycol, 3 parts of zinc chloride and 0.8 part of siloxane.
The adhesive comprises the following components in parts by mass: 0.8 part of ammonium polyvinyl acetate, 1 part of cellulose, 10 parts of asphalt powder, 10 parts of tar and 5 parts of sodium hydroxide.
A preparation method of an optical high-transmittance diffusion film for a liquid crystal display backlight module comprises the following steps:
s1, preparing a high-temperature resistant coating: weighing silicon carbide, magnesium oxide, aluminum oxide, polyvinyl chloride, sodium silicate, silicon micropowder and calcium carbonate according to parts by weight for later use, then correspondingly weighing quartz powder, zinc oxide, sodium alginate, aluminum powder and titanium dioxide according to parts by weight for later use, placing the silicon carbide, the magnesium oxide, the aluminum oxide, the polyvinyl chloride, the sodium silicate, the silicon micropowder and the calcium carbonate in a beaker, weighing 80ml of distilled water by using a 100ml measuring cup, heating the beaker to 60-80 ℃ in a water bath heating tank, continuously stirring the mixture in the beaker by using a stirrer, sequentially adding the quartz powder, the zinc oxide, the sodium alginate, the aluminum powder and the titanium dioxide in the subsequent stirring process, and then standing the mixture for 30-40min for later use.
S2, preparing a binder: weighing ammonium polyvinyl acetate, cellulose, asphalt powder, tar and sodium hydroxide in parts by weight for later use, synchronously conveying the materials into a mixing device, adding a proper amount of distilled water, fully mixing the internal components, heating the raw materials in the mixing process to raise the temperature, ensuring the uniform mixing of the materials, and finally preparing the binder for later use.
S3, spraying of the high-temperature-resistant coating: preheating a diffusion film substrate, conveying the diffusion film substrate to a spraying machine, firstly, filling the adhesive prepared in S2 into the spraying machine, spraying the adhesive on the surface of the diffusion film by using a first unit nozzle of the spraying machine, simultaneously filling a proper amount of high-temperature-resistant coating into the spraying machine, spraying the high-temperature-resistant coating to cover the surface of the diffusion film by using a second unit nozzle of the spraying machine, improving the bonding strength of the high-temperature-resistant coating and the diffusion film under the holding of the adhesive, and then, curing the diffusion film sprayed with the high-temperature-resistant coating by using an ultraviolet instrument, so that the bonding precision of the diffusion film and the diffusion film is enhanced, and the obtained diffusion film is prepared for later use.
S4, preparing a shielding coating: weighing titanium dioxide, organic silicon resin, copper powder, graphite powder, a coupling agent, aluminum silicate fiber, polyethylene glycol, zinc chloride and siloxane in parts by weight for later use, then conveying the raw materials of the components into a stirrer to stir and mix at the speed of 200-.
S5, spraying of the shielding coating: and (3) conveying the diffusion film obtained in the step (S3) to a spraying machine again, filling the shielding coating obtained in the step (S4) into the spraying machine, uniformly and repeatedly spraying the shielding coating on the surface of the diffusion film by using a third unit spray head of the spraying machine, and curing the diffusion film by using an ultraviolet instrument again to enable the shielding coating to be cured on the surface of the diffusion film to prepare the diffusion film.
S6, finished product detection: and (4) detecting the thickness of the diffusion film prepared in the step S5, detecting the flatness of the surface of the diffusion film by using an instrument, and rolling and warehousing the diffusion film after detection.
Example 3
The optical high-transmittance diffusion film for the liquid crystal display backlight module comprises a diffusion film substrate, a high-temperature-resistant coating and a shielding coating, wherein the high-temperature-resistant coating and the shielding coating uniformly cover the surface of the diffusion film substrate;
the composition comprises the following components in parts by mass:
the high-temperature-resistant coating consists of 25 parts of silicon carbide, 7 parts of magnesium oxide, 15 parts of aluminum oxide, 5 parts of polyvinyl chloride, 11 parts of sodium silicate, 10 parts of silicon micropowder, 8 parts of calcium carbonate and a binder;
the shielding coating is composed of 10 parts of titanium dioxide, 65 parts of organic silicon resin, 8 parts of copper powder, 6 parts of graphite powder, 8 parts of coupling agent and 7 parts of aluminum silicate fiber.
The paint also comprises the following components in parts by mass: 40 parts of quartz powder, 5 parts of zinc oxide, 8 parts of sodium alginate, 13 parts of aluminum powder and 3 parts of titanium dioxide.
Comprises the following components in parts by mass: the high-temperature-resistant coating comprises 25 parts of silicon carbide, 7 parts of magnesium oxide, 15 parts of aluminum oxide, 5 parts of polyvinyl chloride, 11 parts of sodium silicate, 10 parts of silicon micropowder, 8 parts of calcium carbonate, a binder, 40 parts of quartz powder, 5 parts of zinc oxide, 8 parts of sodium alginate, 13 parts of aluminum powder and 3 parts of titanium dioxide.
Comprises the following components in parts by mass: the high-temperature-resistant coating comprises 25 parts of silicon carbide, 7 parts of magnesium oxide, 15 parts of aluminum oxide, 5 parts of polyvinyl chloride, 11 parts of sodium silicate, 10 parts of silicon micropowder, 8 parts of calcium carbonate, a binder, 40 parts of quartz powder, 5 parts of zinc oxide, 8 parts of sodium alginate, 8 parts of aluminum powder and 1 part of titanium dioxide.
The paint also comprises the following components in parts by mass: 6 parts of polyethylene glycol, 3 parts of zinc chloride and 1 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 10 parts of titanium dioxide, 65 parts of organic silicon resin, 8 parts of copper powder, 6 parts of graphite powder, 8 parts of coupling agent, 7 parts of aluminum silicate fiber, 3 parts of polyethylene glycol, 2 parts of zinc chloride and 1 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 10 parts of titanium dioxide, 65 parts of organic silicon resin, 8 parts of copper powder, 6 parts of graphite powder, 8 parts of coupling agent, 7 parts of aluminum silicate fiber, 5 parts of polyethylene glycol, 2.5 parts of zinc chloride and 1 part of siloxane.
Comprises the following components in parts by mass: the shielding coating is composed of 10 parts of titanium dioxide, 65 parts of organic silicon resin, 8 parts of copper powder, 6 parts of graphite powder, 8 parts of coupling agent, 7 parts of aluminum silicate fiber, 6 parts of polyethylene glycol, 3 parts of zinc chloride and 1 part of siloxane.
The adhesive comprises the following components in parts by mass: 1 part of ammonium polyvinyl acetate, 1.4 parts of cellulose, 13 parts of asphalt powder, 12 parts of tar and 6 parts of sodium hydroxide.
A preparation method of an optical high-transmittance diffusion film for a liquid crystal display backlight module comprises the following steps:
s1, preparing a high-temperature resistant coating: weighing silicon carbide, magnesium oxide, aluminum oxide, polyvinyl chloride, sodium silicate, silicon micropowder and calcium carbonate according to parts by weight for later use, then correspondingly weighing quartz powder, zinc oxide, sodium alginate, aluminum powder and titanium dioxide according to parts by weight for later use, placing the silicon carbide, the magnesium oxide, the aluminum oxide, the polyvinyl chloride, the sodium silicate, the silicon micropowder and the calcium carbonate in a beaker, weighing 80ml of distilled water by using a 100ml measuring cup, heating the beaker to 60-80 ℃ in a water bath heating tank, continuously stirring the mixture in the beaker by using a stirrer, sequentially adding the quartz powder, the zinc oxide, the sodium alginate, the aluminum powder and the titanium dioxide in the subsequent stirring process, and then standing the mixture for 30-40min for later use.
S2, preparing a binder: weighing ammonium polyvinyl acetate, cellulose, asphalt powder, tar and sodium hydroxide in parts by weight for later use, synchronously conveying the materials into a mixing device, adding a proper amount of distilled water, fully mixing the internal components, heating the raw materials in the mixing process to raise the temperature, ensuring the uniform mixing of the materials, and finally preparing the binder for later use.
S3, spraying of the high-temperature-resistant coating: preheating a diffusion film substrate, conveying the diffusion film substrate to a spraying machine, firstly, filling the adhesive prepared in S2 into the spraying machine, spraying the adhesive on the surface of the diffusion film by using a first unit nozzle of the spraying machine, simultaneously filling a proper amount of high-temperature-resistant coating into the spraying machine, spraying the high-temperature-resistant coating to cover the surface of the diffusion film by using a second unit nozzle of the spraying machine, improving the bonding strength of the high-temperature-resistant coating and the diffusion film under the holding of the adhesive, and then, curing the diffusion film sprayed with the high-temperature-resistant coating by using an ultraviolet instrument, so that the bonding precision of the diffusion film and the diffusion film is enhanced, and the obtained diffusion film is prepared for later use.
S4, preparing a shielding coating: weighing titanium dioxide, organic silicon resin, copper powder, graphite powder, a coupling agent, aluminum silicate fiber, polyethylene glycol, zinc chloride and siloxane in parts by weight for later use, then conveying the raw materials of the components into a stirrer to stir and mix at the speed of 200-.
S5, spraying of the shielding coating: and (3) conveying the diffusion film obtained in the step (S3) to a spraying machine again, filling the shielding coating obtained in the step (S4) into the spraying machine, uniformly and repeatedly spraying the shielding coating on the surface of the diffusion film by using a third unit spray head of the spraying machine, and curing the diffusion film by using an ultraviolet instrument again to enable the shielding coating to be cured on the surface of the diffusion film to prepare the diffusion film.
S6, finished product detection: and (4) detecting the thickness of the diffusion film prepared in the step S5, detecting the flatness of the surface of the diffusion film by using an instrument, and rolling and warehousing the diffusion film after detection.
EXAMPLE 4
The performance of a common diffusion film on the market and the diffusion films prepared in the embodiments 1, 2 and 3 of the present invention were tested, and the test performance includes high temperature resistance test and shielding effect test.
The test method is as follows:
(1) the common diffusion films and the diffusion films prepared in the embodiments 1, 2 and 3 are respectively conveyed into a heating box, the heating in the heating box is synchronously carried out, and the temperature difference of the states of the diffusion films is synchronously collected and recorded through a detection device, so that the high temperature resistance of the diffusion films prepared in the embodiments 1, 2 and 3 is obviously better than that of the common diffusion films.
(2) The common diffusion films and the diffusion films prepared in the embodiments 1, 2 and 3 are respectively conveyed to an electromagnetic interference environment, and the shielding performance of each diffusion film is synchronously collected and recorded through detection equipment, so that the shielding performance of the diffusion films prepared in the embodiments 1, 2 and 3 is obviously better than that of the common diffusion films.
The result shows that the high-temperature-resistant coating covers the diffusion film substrate prepared by the invention, so that the high-temperature-resistant performance of the diffusion film is effectively enhanced, the diffusion film can be quickly adapted to a long-time high-temperature environment for use, the defect of damage to the diffusion film in the high-temperature environment is avoided, and the high-temperature-resistant coating improves the corrosion resistance while considering the high-temperature resistance under the mixing of quartz powder, zinc oxide, sodium alginate and aluminum powder, so that the diffusion film is kept in a good working state.
The diffusion film prepared by the invention is overlaid with the shielding coating, so that the diffusion film can be externally protected, external electromagnetic interference and signal interference can be shielded, external signals and the like are prevented from influencing the diffusion film, the stability of the diffusion film is enhanced, the diffusion film is not easily interfered by the external, the functionality of the shielding coating is enriched under the assistance of the mixing of polyethylene glycol, zinc chloride and siloxane, the ultraviolet shielding function is added on the basis of ensuring the original shielding performance, the damage of the diffusion film is reduced, and the external ultraviolet can be shielded and blocked.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a be used for liquid crystal display backlight unit optics height to pass through diffusion barrier which characterized in that: the diffusion film consists of a diffusion film substrate, a high-temperature-resistant coating and a shielding coating, wherein the high-temperature-resistant coating and the shielding coating uniformly cover the surface of the diffusion film substrate;
the composition comprises the following components in parts by mass:
the high-temperature resistant coating consists of 15-25 parts of silicon carbide, 5-7 parts of magnesium oxide, 10-15 parts of aluminum oxide, 3-5 parts of polyvinyl chloride, 8-11 parts of sodium silicate, 8-10 parts of silicon micropowder, 6-8 parts of calcium carbonate and a binder;
the shielding coating is composed of 5-10 parts of titanium dioxide, 50-65 parts of organic silicon resin, 5-8 parts of copper powder, 3-6 parts of graphite powder, 5-8 parts of coupling agent and 4-7 parts of aluminum silicate fiber.
2. The optical high-transmittance diffusion film for the liquid crystal display backlight module according to claim 1, wherein: the paint also comprises the following components in parts by mass: 25-40 parts of quartz powder, 3-5 parts of zinc oxide, 6-8 parts of sodium alginate, 8-13 parts of aluminum powder and 1-3 parts of titanium dioxide.
3. The optical high-transmittance diffusion film for the liquid crystal display backlight module according to claim 2, wherein: comprises the following components in parts by mass: the high-temperature-resistant coating consists of 15-25 parts of silicon carbide, 5-7 parts of magnesium oxide, 10-15 parts of aluminum oxide, 3-5 parts of polyvinyl chloride, 8-11 parts of sodium silicate, 8-10 parts of silicon micropowder, 6-8 parts of calcium carbonate, a binder, 25-40 parts of quartz powder, 3-5 parts of zinc oxide, 6-8 parts of sodium alginate, 8-13 parts of aluminum powder and 1-3 parts of titanium dioxide.
4. The optical high-transmittance diffusion film for the liquid crystal display backlight module according to claim 2, wherein: comprises the following components in parts by mass: the high-temperature-resistant coating is composed of 15-25 parts of silicon carbide, 5-7 parts of magnesium oxide, 10-15 parts of aluminum oxide, 3-5 parts of polyvinyl chloride, 8-11 parts of sodium silicate, 8-10 parts of silicon micropowder, 6-8 parts of calcium carbonate, a binder, 25-40 parts of quartz powder, 3-5 parts of zinc oxide, 6-8 parts of sodium alginate, 8 parts of aluminum powder and 1 part of titanium dioxide.
5. The optical high-transmittance diffusion film for the liquid crystal display backlight module according to claim 1, wherein: the paint also comprises the following components in parts by mass: 3-6 parts of polyethylene glycol, 2-3 parts of zinc chloride and 0.5-1 part of siloxane.
6. The optical high-transmittance diffusion film for the liquid crystal display backlight module according to claim 5, wherein: comprises the following components in parts by mass: the shielding coating is composed of 5-10 parts of titanium dioxide, 50-65 parts of organic silicon resin, 5-8 parts of copper powder, 3-6 parts of graphite powder, 5-8 parts of coupling agent, 4-7 parts of aluminum silicate fiber, 3 parts of polyethylene glycol, 2 parts of zinc chloride and 0.5-1 part of siloxane.
7. The optical high-transmittance diffusion film for the liquid crystal display backlight module according to claim 5, wherein: comprises the following components in parts by mass: the shielding coating is composed of 5-10 parts of titanium dioxide, 50-65 parts of organic silicon resin, 5-8 parts of copper powder, 3-6 parts of graphite powder, 5-8 parts of coupling agent, 4-7 parts of aluminum silicate fiber, 5 parts of polyethylene glycol, 2.5 parts of zinc chloride and 0.5-1 part of siloxane.
8. The optical high-transmittance diffusion film for the liquid crystal display backlight module according to claim 5, wherein: comprises the following components in parts by mass: the shielding coating is composed of 5-10 parts of titanium dioxide, 50-65 parts of organic silicon resin, 5-8 parts of copper powder, 3-6 parts of graphite powder, 5-8 parts of coupling agent, 4-7 parts of aluminum silicate fiber, 6 parts of polyethylene glycol, 3 parts of zinc chloride and 0.5-1 part of siloxane.
9. The optical high-transmittance diffusion film for the liquid crystal display backlight module according to claim 1, wherein: the adhesive comprises the following components in parts by mass: 0.5-1 part of ammonium polyvinyl acetate, 0.8-1.4 parts of cellulose, 8-13 parts of asphalt powder, 8-12 parts of tar and 3-6 parts of sodium hydroxide.
10. The method for preparing the optical high-transmittance diffusion film for the liquid crystal display backlight module according to any one of claims 1 to 9, wherein the method comprises the following steps: the method comprises the following steps:
s1, preparing a high-temperature resistant coating: weighing silicon carbide, magnesium oxide, aluminum oxide, polyvinyl chloride, sodium silicate, silicon micropowder and calcium carbonate according to parts by weight for later use, then correspondingly weighing quartz powder, zinc oxide, sodium alginate, aluminum powder and titanium dioxide according to parts by weight for later use, placing the silicon carbide, the magnesium oxide, the aluminum oxide, the polyvinyl chloride, the sodium silicate, the silicon micropowder and the calcium carbonate in a beaker, weighing 80ml of distilled water by using a 100ml measuring cup, heating the beaker to 60-80 ℃ in a water bath heating tank, continuously stirring the mixture in the beaker by using a stirrer, sequentially adding the quartz powder, the zinc oxide, the sodium alginate, the aluminum powder and the titanium dioxide in the subsequent stirring process, and then standing the mixture for 30-40min for later use.
S2, preparing a binder: weighing ammonium polyvinyl acetate, cellulose, asphalt powder, tar and sodium hydroxide in parts by weight for later use, synchronously conveying the materials into a mixing device, adding a proper amount of distilled water, fully mixing the internal components, heating the raw materials in the mixing process to raise the temperature, ensuring the uniform mixing of the materials, and finally preparing the binder for later use.
S3, spraying of the high-temperature-resistant coating: preheating a diffusion film substrate, conveying the diffusion film substrate to a spraying machine, firstly, filling the adhesive prepared in S2 into the spraying machine, spraying the adhesive on the surface of the diffusion film by using a first unit nozzle of the spraying machine, simultaneously filling a proper amount of high-temperature-resistant coating into the spraying machine, spraying the high-temperature-resistant coating to cover the surface of the diffusion film by using a second unit nozzle of the spraying machine, improving the bonding strength of the high-temperature-resistant coating and the diffusion film under the holding of the adhesive, and then, curing the diffusion film sprayed with the high-temperature-resistant coating by using an ultraviolet instrument, so that the bonding precision of the diffusion film and the diffusion film is enhanced, and the obtained diffusion film is prepared for later use.
S4, preparing a shielding coating: weighing titanium dioxide, organic silicon resin, copper powder, graphite powder, a coupling agent, aluminum silicate fiber, polyethylene glycol, zinc chloride and siloxane in parts by weight for later use, then conveying the raw materials of the components into a stirrer to stir and mix at the speed of 200-.
S5, spraying of the shielding coating: and (3) conveying the diffusion film obtained in the step (S3) to a spraying machine again, filling the shielding coating obtained in the step (S4) into the spraying machine, uniformly and repeatedly spraying the shielding coating on the surface of the diffusion film by using a third unit spray head of the spraying machine, and curing the diffusion film by using an ultraviolet instrument again to enable the shielding coating to be cured on the surface of the diffusion film to prepare the diffusion film.
S6, finished product detection: and (4) detecting the thickness of the diffusion film prepared in the step S5, detecting the flatness of the surface of the diffusion film by using an instrument, and rolling and warehousing the diffusion film after detection.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5333073A (en) * | 1992-01-09 | 1994-07-26 | Nec Corporation | Backlight device and liquid crystal display having conductive film on electromagnetic shield or diffuser between fluorescent tubes and display |
| US6200680B1 (en) * | 1994-06-06 | 2001-03-13 | Nippon Shokubai Co., Ltd. | Fine zinc oxide particles, process for producing the same, and use thereof |
| CN1781034A (en) * | 2003-04-28 | 2006-05-31 | 多喜兰株式会社 | Electromagnetic-shielding light diffusion sheet |
| US20100177397A1 (en) * | 2006-08-18 | 2010-07-15 | Hironori Kamiyama | Front filter for plasma display and plasma display |
| CN103773233A (en) * | 2014-01-20 | 2014-05-07 | 南通耀华机电有限公司 | Shielding coating for low-frequency transformer |
| CN104550997A (en) * | 2014-11-10 | 2015-04-29 | 华玉叶 | Method for binding zinc chloride to colloidal material |
| CN104862973A (en) * | 2015-04-27 | 2015-08-26 | 南通安博力户外用品有限公司 | Fabric ultraviolet shielding coating material and preparation method |
| CN111435181A (en) * | 2019-05-24 | 2020-07-21 | 宁波激智科技股份有限公司 | Dimming sheet and preparation method thereof |
-
2021
- 2021-11-20 CN CN202111380796.4A patent/CN114265234A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5333073A (en) * | 1992-01-09 | 1994-07-26 | Nec Corporation | Backlight device and liquid crystal display having conductive film on electromagnetic shield or diffuser between fluorescent tubes and display |
| US6200680B1 (en) * | 1994-06-06 | 2001-03-13 | Nippon Shokubai Co., Ltd. | Fine zinc oxide particles, process for producing the same, and use thereof |
| CN1781034A (en) * | 2003-04-28 | 2006-05-31 | 多喜兰株式会社 | Electromagnetic-shielding light diffusion sheet |
| US20100177397A1 (en) * | 2006-08-18 | 2010-07-15 | Hironori Kamiyama | Front filter for plasma display and plasma display |
| CN103773233A (en) * | 2014-01-20 | 2014-05-07 | 南通耀华机电有限公司 | Shielding coating for low-frequency transformer |
| CN104550997A (en) * | 2014-11-10 | 2015-04-29 | 华玉叶 | Method for binding zinc chloride to colloidal material |
| CN104862973A (en) * | 2015-04-27 | 2015-08-26 | 南通安博力户外用品有限公司 | Fabric ultraviolet shielding coating material and preparation method |
| CN111435181A (en) * | 2019-05-24 | 2020-07-21 | 宁波激智科技股份有限公司 | Dimming sheet and preparation method thereof |
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