CN101135741A - Optical filter having electromagnetic radiation prevention and light filtering function of plasma display - Google Patents
Optical filter having electromagnetic radiation prevention and light filtering function of plasma display Download PDFInfo
- Publication number
- CN101135741A CN101135741A CNA200610021717XA CN200610021717A CN101135741A CN 101135741 A CN101135741 A CN 101135741A CN A200610021717X A CNA200610021717X A CN A200610021717XA CN 200610021717 A CN200610021717 A CN 200610021717A CN 101135741 A CN101135741 A CN 101135741A
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- layer
- ito
- azoy
- tio
- rete
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
- G02B5/285—Interference filters comprising deposited thin solid films
- G02B5/287—Interference filters comprising deposited thin solid films comprising at least one layer of organic material
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
- H01J11/44—Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0094—Shielding materials being light-transmitting, e.g. transparent, translucent
- H05K9/0096—Shielding materials being light-transmitting, e.g. transparent, translucent for television displays, e.g. plasma display panel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
- H01J2211/20—Constructional details
- H01J2211/34—Vessels, containers or parts thereof, e.g. substrates
- H01J2211/44—Optical arrangements or shielding arrangements, e.g. filters or lenses
- H01J2211/442—Light reflecting means; Anti-reflection means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
- H01J2211/20—Constructional details
- H01J2211/34—Vessels, containers or parts thereof, e.g. substrates
- H01J2211/44—Optical arrangements or shielding arrangements, e.g. filters or lenses
- H01J2211/446—Electromagnetic shielding means; Antistatic means
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Optical Filters (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
The filter comprises a transparent resin substrate; a filming layer, with anti-electromagnet and light filtering function, coated by using continuous magnetron sputtering approach; a plastic film layer used for preventing the filming layer from oxidation or corrosion; a metal layer used as the extraction electrode; the filming layer is a structure in 13 layers or 17 layers and made of TiO2/AZOY or ITO/Ag/AZOY or ITO/TiO2.
Description
Technical field:
The present invention is relevant with the optical filter in the display device, and is special relevant with the optical filter with anti-electromagnetic radiation and filtering functions in the plasma scope (PDP).
Background technology:
The antireflection of present PDP optical filter and anti-electromagnetic radiation and filtering functions are to form like this: the outside surface at a sheet glass is pasted the plastic film that is coated with the antireflection rete, pastes the anti-electromagnetic radiation that formed by two layers of plastics and the diaphragm of filtering functions at another side.Wherein one deck is to adopt photoetch method or wire gauze wiring method to make the metallic conduction grid on diaphragm to form the anti-electromagnetic radiation function.Have the method that adopts brushing pigment film to form rete or paste on the film of metal wire or wire mesh grid at this layer, form the function of anti-electromagnetic radiation and optical filtering by this two membranes with infrared light optical attenuation plastic foil.Because lamination lamination composite methods, various functional membranes are on each tunic sheet, attaching process and combination process require high, be difficult for mechanization and produce continuously, and the cost height, yield rate is low, production efficiency is low, and transmittance is low.
The name of publication number CN1509490A is called the plasma display panel optical filter and discloses lamination and the various antireflections of lamination (AR) film on transparent substrate, near infrared (NIR) screened film and electromagnetic interference (EMI) screened film, this functional membrane is the crux film that optical filter needs, they are that the difference plated film is on plastic basis material or plastic foil, need lamination in layer by function again and be stacked on the transparent substrate, transparent substrate is to place being overrided to form of adhesive layer between the resin bed by at least two transparent resin layers and at least one.
This plated film respectively, the shaping method for making of lamination does not still have the essence progress with preceding method again, and still efficient is low, yield rate is low, cost is high.Particularly multi-level lamination lamination, the residual volatile matter of the solvent that steam bubble between the lamination and cementing agent may exist greatly reduces yield rate.
The name of number of patent application 200410069275.7 is called laminated body and uses the filter of display of this laminated body; anti-oxidant or the erosion problem that how to solve silver film in the EMI screened film in the screened film of the crux functional membrane electromagnetic interference (EMI) that light filter needs most is disclosed; in the literature erosion is called the cohesion of the silver atoms of silver-colored thin layer; the silver-colored thin layer that shows as that corrodes produces " white point "; this application is also promptly increasing by a protective seam on the superficial layer at three layers of silver-colored thin layer on for the film of the anti-reflection transparent high index of refraction that must have on the crux thin layer of the anti-electromagnetic interference (EMI) silver thin layer, and this protective seam is made up of the adhesive material and the inorganic fine particles of polymer.
Inorganic fine particles is to adopt the silicon dioxide of metal oxide such as its recommendation, tin oxide, zinc paste, indium oxide, antimony oxide, aluminium oxide, zirconia etc., more preferential selective oxidation antimony tin monoxide composite oxides, antimony oxide one zinc paste composite oxides.
Bonding agent and inorganic fine particles are by solvent or solution dissolved adhesive; and dispersion inorganic fine particles; be coated on the rete of forming by silver-colored thin layer and anti-reflection high refractive index film layer with rubbing method; be actually and be coated on the high refractive index film layer; and finally forming protective seam, document claims to forming " white point " obviously surprised inhibiting effect is arranged.
This metal oxide of solvent or solution coat formation and the thin layer of cementing agent combination of utilizing; say with regard to technological process and to relate to environmental issue and pollution; wayward with regard to film forming thickness and visible light transmissivity; and can't the testing product qualification rate on production line; can not control and qualification rate low; the rete fastness is not enough; and rete is the most surperficial; survey surface resistivity on the protection aspect, participate in combination because of macromolecule resin is arranged, surface resistivity is higher than not increasing this protective seam on the contrary; the EMI function of shielding is descended; for the film layer structure of three layers of silver, solved so-called " white point " problem, but reduced the EMI screening ability of three layers of silver.This application has proposed to suppress silver-colored thin layer is corroded or claims to reduce the method for controlling of " white point "; but be coated with this layer protective seam owing to only adopt on the transparent high refractive index film layer of the superficial layer of three layers of silver-colored structural film layer; to the effect of EMI screened film not enough, surface resistivity preferably can only reach 2 Ω/cm
2, also do not reach household electrical appliance less than 1.5 Ω/cm
2Standard, this application does not have method or scheme being divided into report or the prompting that increases the metal-oxide film layer between three layers (if four layers of silver-colored film layer structure should have four layers) between every layer of silver-colored thin layer and the transparent high refractive index film layer, more do not utilize the continuous magnetron sputtering method plate these three layers or four layers of metal oxide such as ITO (indium tin oxide) or AZOY (aluminium, zinc oxide) film and with all the other ITO or AZOY/Ag/TiO
2Film organically combines and improves visible light transmittance rate, improves the anti-oxidant corrosion resistance of coatings and improves the EMI screening ability, simultaneously near infrared light, far red light, ultraviolet light has been stopped the report and the prompting of filtering functions.
The patent documentation of number of patent application 01804419.0, a kind of display filter is disclosed, this optical filter is a lamination transparency conducting layer (D) on the one or both sides of macromolecule membrane (B), transparency conducting layer is that combination (Dt)/(DM) with high refractive index transparent thin layer (Dt) and metal film layer (MD) is as repetitive, carry out lamination 2-4 time repeatedly, lamination high refractive index transparent thin layer (Dt) and constituting thereon more also discloses one deck at least in this high refractive index transparent thin layer (Dt) by with indium, more than one of tin and zinc are that the oxide of principal ingredient forms.The one deck at least that also discloses in a plurality of metal film layers (DM) is formed by silver or silver alloy.Also disclosing in the close air side of macromolecule membrane (B) also promptly watches face to be shaped on the scheme of individual layer antireflection film layer.Also open and clear conductive layer (D) has the surface resistance of 0.01-30 Ω/, even but film 7 tunics of 2-4 repetition of the Dt/DM film of in fact disclosed lamination, so long as adopt the mode of plated film lamination to form transparent conductive film, its surface resistance is all at 2.2 Ω/more than the, most at 5 Ω/more than the, do not reach the standard that domestic TV is lower than 1.5 Ω/, be actually and come into operation.Even the method by its patent disclosure can be used, in fact this so-called transparency conducting layer (D) EM1 interfere wave shielding net of remaining the compound copper coin of the disclosed etching of front several patents of employing or adopting the wire cloth network method to form, this layer net do not possess the function of absorption or block ultraviolet, near infrared light, far red light simultaneously.The scheme of this patent disclosure is to be exclusively used in the macromolecule membrane that sticks on the scope face.
This patent does not have open and enlightenment is main rete with silver, TiO of lamination one deck high index of refraction on it
2Rete is at silver layer and TiO
2Between the metal oxide rete of special lamination layer of transparent, utilize this one deck metal oxide self anti-aging capability to stablize the protection that increases silver layer, utilizing this tunic simultaneously is that the nanoscale film has special receptivity to infrared waves, with silver layer and TiO
2Common absorption and the blocking capability that improves ultraviolet light, near infrared light, far red light in rete combination back.This patent is not open based on silver layer yet, at the symmetrical lamination metal oxide film layer/TiO of its both sides difference
25 layers of structure, by these 5 layers of structures can form cleverly 3 to 4 groups repetition and form 13 layers or 17 tunic structures, finally realize that by 13 layers and 17 tunics the surface resistance of 1.5 Ω/below the reaches the filtering functions to ultraviolet light, near infrared light.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency, but provide the method for the continuous magnetically controlled sputter method plated film of a kind of employing large tracts of land, can reduce cost greatly, the production efficiency height, the intensity height, the transmittance height, anti-electromagnetic radiation and filter effect are good, the optical filter with anti-electromagnetic radiation and filtering functions of long service life.
The object of the present invention is achieved like this:
Optical filter of the present invention, comprise the transparent resin substrate, the coatings that anti-electromagnetic radiation and filtering functions are arranged that the method that adopts continuous magnetron sputtering plates in the one side of transparent resin substrate, with the compound prevention coatings oxidation of coatings or the plastic membranous layer of erosion, the metallic film as extraction electrode that contacts with coatings, coatings are by three groups or four groups of TiO
2/ AZOY/Ag/AZOY/TiO
2Or TiO
2/ ITO/Ag/AZOY/TiO
2Or TiO
2/ ITO/Ag/ITO/TiO
2Or TiO
2/ AZOY/Ag/ITO/TiO
213 layers or 17 layers of structure that the rete that repeats to form of such film system is formed, wherein AZOY is that zinc paste and aluminium oxide mix the oxide membranous layer that material is formed, ITO is the rete that ginseng tin indium oxide material is formed, and the structure of plating 13 tunic layers is on the transparent resin substrate: the ground floor rete is TiO
2, second layer rete is AZOY or ITO, and the trilamellar membrane layer is Ag, and the 4th tunic layer is AZOY or ITO, and the layer 5 rete is TiO
2, the layer 6 rete is AZOY or ITO, and the layer 7 rete is Ag, and the 8th tunic layer is AZOY or ITO, and the 9th tunic layer is TiO
2, the tenth tunic layer is AZOY or ITO, and the eleventh floor rete is Ag, and the Floor 12 rete is AZOY or ITO, and the tenth trilamellar membrane layer is TiO
2, the structure of plating 17 tunic layers is on glass substrate: the ground floor rete is TiO
2, second layer rete is AZOY or ITO, and the trilamellar membrane layer is Ag, and the 4th tunic layer is AZOY or ITO, and the layer 5 rete is TiO
2, the layer 6 rete is AZOY or ITO, and the layer 7 rete is Ag, and the 8th tunic layer is AZOY or ITO, and the 9th tunic layer is TiO
2, the tenth tunic layer is AZOY or ITO, and the eleventh floor rete is Ag, and the Floor 12 rete is AZOY or ITO, and the tenth trilamellar membrane layer is TiO
2, the 14 tunic layer is AZOY or ITO, and the 15 tunic layer is Ag, and the 16 tunic layer is AZOY or ITO, and the 17 tunic layer is TiO
2Plastic membranous layer can adopt transmittance to be higher than 85% even 90% the plastic film that can stop coatings oxidation or erosion; this diaphragm not only can prevent and delay the erosion and the performance degradation of electromagnetic interference (EMI) shielding coatings; it is a good optical filter of performance; become the PDP display protection simultaneously, particularly use the continuous magnetron sputtering method at Ag coating and TiO
2One deck ITO or AZOY metal oxide layer have been plated between the coating, make Ag coating increase anti-oxidant and erosional competency, solve so-called " white point " problem, not because of this layer plated film that repeats three groups or four groups reduces the optical filter overall light transmittance requirement, on the contrary to coatings surface resistivity≤1.5 Ω/cm
2Contribution is arranged, and the production efficiency height, coating process is unified, convenient, and cost is low.
Each tunic layer thickness in the above-mentioned coatings with 13 layers or 17 layers structure is followed successively by following thickness range: TiO by substrate to outermost layer
2Be 10～150nm (nanometer), AZOY or ITO are 1.0～30nm (nanometer), and Ag is 5～30nm (nanometer), and AZOY or ITO are 1.0～30nm (nanometer), TiO
2Be 10～200nm (nanometer), AZOY or ITO are 1.0～30nm (nanometer), and Ag is 5～30nm (nanometer), and AZOY or ITO are 1.0～30nm (nanometer), TiO
2Be 10～200nm (nanometer), AZOY or ITO are 1.0～30nm (nanometer), and Ag is 5～30nm (nanometer), and AZOY or ITO are 1.0～30nm (nanometer), TiO
2Be 10～200nm (nanometer), AZOY or ITO are 1.0～30nm (nanometer), and Ag is 5～30nm (nanometer), and AZOY or ITO are 1.0～30nm (nanometer), TiO
2Be 10～15Onm (nanometer).
Above-mentioned metallic film is to coat around the transparent resin substrate and by conducting resinl on the metallic film and coatings bonding to be composited, or the metallic conduction cementing agent is by being composited with the coatings bonding around the printing curing coating transparent resin substrate, metallic film not only can be contacted EMI shielding coatings and be the U type coat the substrate edge or only in EMI shielding plated film face surrounding along stickup, metallic film shields the electromagnetic radiation of coatings shielding under stopping as extraction electrode with EMI and passes to display until ground connection.Metallic film also can be with solidifying to form after the printing of conducting metal cementing agent, with compound the comparing that bond with metallic film higher robotization efficient is arranged, can reducing cost bonding and more firm to the sealing of EMI coating.
The prevention coatings oxidation that above-mentioned and coatings are compound or the plastic membranous layer of erosion are pasted compound by adhesive layer and coatings.Plastic membranous layer is pasted compound by adhesive layer and coatings, plastic foil self also can bond compoundly for one becomes optical filter because of needs become adhesive layer and other substrate, also can be bonded as one with the PDP display board and makes display thinner.
Above-mentioned plastic membranous layer is polyester film or the polycarbonate membrane or the polyvinyl butyral film of two-way stretch, add blue pigment in the cementing agent to regulate and the yellow characteristic light of the 596nm (nanometer) that the decay display sends, add at least a in purple, redness, the black pigment to regulate the colour temperature and the transmittance of display.Plastic membranous layer is the polyester film (BOPET) of two-way stretch, also can be polycarbonate membrane (PC film), polyvinyl butyral (PVB) film or polyester film (PET film).Add blueness in the cementing agent and can regulate and decay the 596nm yellow characteristic light and make redness more bright-coloured, also can add other pigment such as purple and/or redness and/or black pigment to regulate the colour temperature and the visible light transmissivity of display.Also can in cementing agent, add ultraviolet light absorber and antioxidant increase ageing resistance because of needs.
Be coated with anti-reflection function rete (AR rete) on the above-mentioned plastic membranous layer, its anti-reflection function rete is at least by SiO
2With Nb
2O
5Or TiO
2Two layers of composition.Also can be by SiO
2/ Nb
2O
5Or TiO
2/ SiO
2/ Nb
2O
5Or TiO
2Four tunics are formed, and paste the plastic film that is coated with the AR film on EMI shielding plated film face, and the visible light that optical filter is seen through has higher transmitance, improves the brightness of display.Also can be coated with anti-electromagnetic radiation and filtering functions coating and paste thereon be coated with the AR film this one side of plastic film as watching face, not only play EMI shielding action and filter action, can also resist reflection of ambient light, the raising viewing quality.
The anti-reflection function rete that adopts the continuous magnetron sputtering method to plate is arranged on the another side of above-mentioned transparent resin substrate, in the anti-reflection function rete at least by SiO
2With Nb
2O
5Or TiO
2Two layers of composition.Also can form by four layers as previously mentioned, wherein SiO
2/ Nb
2O
5(or TiO
2) all adopt the method for twin intermediate frequency reaction magnetocontrol sputtering to prepare, the performance of the AR rete of producing: to plate four layers is example, by learning reflectivity＜0.5% in its reflectivity curve in the visible light section, two sides stack back reflection rate is also less than 3%, the more important thing is can be with the AR face directly facing to the people, reduce the reflection of substrate face, improve picture quality, solve present many PDP displays and watch the serious problem of face reflection surrounding environment.
Above-mentioned optical filter compound prevention coatings oxidation or plastic membranous layer of erosion on the coatings of transparent resin substrate are adhesive layers, at least the blue pigment that has added the yellow characteristic light of the colour temperature of adjusting display and the 596nm (nanometer) that the decay display sends therein, this substrate and the other substrate formation optical filter that is bonded to one. utilizing plastic membranous layer is adhesive layer, can the plastic substrate of EMI function of shielding and filtering functions and other glass substrate will be had easily, plastic substrate is fitted, has multi-purpose optical filter and become, special for the reeled plastic tab that utilizes the continuous magnetron sputtering winding film coating machine to be plated with EMI screened film and filtering functions film, higher plated film efficient and lower cost are arranged, but utilizing on this winding film plating thin slice the compound plastic membranous layer of coatings is cementing agent, can make things convenient for and various substrates are fitted and become the more optical filters of function.
Above-mentioned optical filter by with the compound prevention coatings oxidation of coatings or the plastic membranous layer of erosion, this plastic layer is regulated the pigment and the ultraviolet light absorber of colour temperature as adhesive and adding, direct and plasma display panel is pasted and is one, and the attenuate display thickness improves side wide-angle viewing quality more.
The surface resistivity of above-mentioned coatings≤1.5 Ω/cm
2(also together with Ω/ unit representation).
The transparent resin substrate of above-mentioned optical filter is the substrate of reeling that adopts polymethylmethacrylate (PMMA) or polyester (PET) or polycarbonate (PC) material, the optical filter substrate adopts the transparent resin substrate that can reel, can alleviate display weight, can be compound with other substrate easily, because of winding film coating machine can the continuous magnetron sputtering plated film, make coating process more reliable, efficient is higher, thereby optical filter goods cost is lower.
Above-mentioned optical filter is watched planar survey at display, and less than 75%, the transmittance during infrared light 850nm is less than 18% greater than 30% for the transmittance during the visible light 380～780nm of optical filter, and the transmittance during 950nm is less than 10%.
Above-mentioned optical filter does not have the optical filter of the another side of coating anti reflection functional film layer at the transparent resin substrate, and the reflectivity when measuring optical filter visible light 380～780nm is lower than 6%.
Be coated with the anti-reflection function rete on the another side of above-mentioned transparent resin substrate, the reflectivity when this planar survey optical filter visible light 380～780nm is lower than 4%.
The present invention is ITO rete or AZOY rete at the bottom of heart layer; topped on the face of Ag layer also is ITO rete or AZOY rete; the easier control on coating process of ITO rete of the present invention or AZOY rete; so the present invention not only technology controls easily; the yield rate height; optical index is also stable; transmittance is better; rete can be thicker; protection and oxygen barrier ability to the Ag layer are higher; the more important thing is on the two sides of Ag layer it is ITO and/or AZOY; that is to say symmetrical rete; this optical filter two sides can be assembled with the PDP display; and play EMI shielding and ultraviolet light wave, and near infrared light involves the filtering function of far infrared light wave, and thickness is designed to symmetry in addition; equipment during plated film is as long as satisfy four layers of coating process that can carry out single Ag; just can obtain the repetition film layer structure of 3Ag or 4Ag easily, and make things convenient for plated film, save equipment investment by repeating the plated film mode.
Optical filter of the present invention can be only be composited with the metallic film stickup as extraction electrode that has the plastic foil that stops coatings oxidation and erosion or adhesive layer and contact with the EMI coatings by the transparent resin substrate of plating EMI shielding coatings, becomes the most basic optical filter of PDP display.Also can utilize the plastic foil that pastes to plate the AR film thereon, increase the optical filter visible light transmissivity, reduce visible reflectance, and the pad pasting face is assembled use in the face of spectators in the face of spectators; Can also also plate the AR film at the another side of substrate EMI shielding coatings, it be faced watch the face also can antireflection, particularly anti-environment improves the picture quality of watching to the light reflection of screen; Can also utilize this to be coated with the thin substrate of reeling of EMI screened film; utilize on it to intercept plastic layer (or become adhesive layer with it) that the EMI coatings prevents its oxidation or erosion and other substrate and fit and become function more comprehensively and have an optical filter of safety protection function, perhaps itself and PDP display are directly fitted into one and alleviate display weight and attenuate PDP TV thickness.This coatings has solved the filtration difficult problem of EMI shielding that the lamination of multilayer functional membrane stack in the past could solve and ultraviolet light, near infrared light, far red light, and the production efficiency height, cost is low, the life-span is long, performance is more perfect.
Optical filter cost of the present invention is low, the production efficiency height, and the intensity height, the transmittance height, anti-electromagnetic radiation and filter effect are good, long service life.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is three layers of repetitive structure synoptic diagram of anti-electromagnetic radiation coatings.
Fig. 3 is for involving near infrared, far infrared, ultraviolet shielding and filtration and visible light transmittance rate curve map to electromagnetism.
Fig. 4 is the anti-reflection film structure synoptic diagram.
Fig. 5 is reflectivity (R%) curve map of anti-reflective film (AR film).
Fig. 6 is the present invention's structural representation again.
Fig. 7 does not have the structural representation of the present invention of anti-reflection function for one side.
Fig. 8 does not have the structural representation of the present invention of anti-reflection function for another side.
Fig. 9 is for watching the present invention that face is pasted with AR film structural representation again at substrate.
Figure 10 is the structural representation of the present invention that glass substrate is arranged.
Embodiment:
Embodiment 1:
Fig. 1 has provided present embodiment 1 figure.Referring to Fig. 1, transparent resin substrate 1 adopts thick polymethylmethacrylate (PMMA) plastic substrate of 2mm, after washed with de-ionized water, enter continuous magnetron sputtering film production line and adopt the method for continuous magnetron sputtering to plate as shown in Figure 2 three silverskin system (also can be four silverskin systems), promptly by TiO
2/ ITO or AZOY/Ag/ITO or AZOY/TiO
213 tunics (the adjacent TiO of adjacent structure layer that repetitive structure is formed
2Layer coincidence) the anti-electromagnetic radiation and the coatings of filtering functions (being EMI shielding coatings) 2, TiO wherein
2Adopt the method preparation of twin intermediate frequency reaction magnetocontrol sputtering, and Ag and ITO or AZOY adopt plane direct current magnetron sputtering to be equipped with.AZOY is that zinc oxide and aluminum oxide mix the oxide membranous layer that material is formed, this ZnO and Al
2O
3The target that material is formed is the open and ripe target that uses of Germany " GfE Metalle undMaterralien GmbH " company, ZnO and Al
2O
3Account for 99.95% of material, it and ITO rete relatively have similar performance, and higher transmittance is arranged under the same thickness situation.With the DC pulse magnetron sputtering convenient controlled film lamination process conditions are arranged, material cost saves 3/4 than ITO, and using value is preferably arranged.If at three layers of TiO
2/ ITO or AZOY/Ag/ITO or AZOY/TiO
2: repetitive structure rete (i.e. three silver medals) is gone up increases TiO
2/ ITO or AZOY/Ag/ITO or AZOY/TiO
2Rete i.e. four layers of composite structure (i.e. four silver medals), becomes 17 layers at last, and various performance index are more guaranteed, and particularly surface resistivity can be by≤1.5 Ω/cm
2Drop to≤1.3 Ω/cm
2Below.The performance of the EMI barrier film layer of producing as shown in Figure 3, the transmittance of visible light should be greater than 75%, and should descend rapidly in the near infrared section, in 596 nanometers also is that the yellow characteristic light section that the display neon sends produces absorption because of adding blue pigment, transmittance has a low peak valley, has only 30% transmittance approximately.Ω/the cm of surface resistance R=1.3 ± O.02
2, surface resistance is more little, and the ability of anti-electromagnetic radiation is strong more.Paste the last layer transmittances on the surface of EMI shielding coatings 2 by acrylate adhesives layer 3 and be higher than the plastic film 4 that 85% the polyester film (BOPET film) with the two-way stretch that stops coatings oxidation and erosion is made.After sticking plastic membranous layer and adding blue pigment and regulate the pigment of colour temperature, can satisfy transmittance greater than 30% less than 75% index.Paste with conducting resinl 7 and EMI shields that coatings contacts and as the metallic film 5 of extraction electrode in the about 10mm part of the substrate face that is coated with EMI barrier film layer hem width around it.According to this optical filter EMI film whether towards PDP display 10, metallic film (paillon foil) not only can be contacted EMI shielding coatings and be the U type coat the substrate edge or only in EMI shielding plated film aspect surrounding along stickup.Be the U type and coat the substrate edge, can make this optical filter only as anti-electromagnetic radiation and filtering functions use the time, the optical filter two sides can make things convenient for installed surface to the PDP display.Another side at plastic foil and substrate adopts twin intermediate frequency reaction magnetocontrol sputtering method to plate anti-reflection function (AR) rete 6 respectively.The structure of anti-reflection function rete as shown in Figure 4, by SiO
2/ Nb
2O
5Or TiO
2The four-layer structure of forming.The performance of the AR rete of producing, its reflectivity curve superpose the back reflection rate also less than 3% in reflectivity R＜0.5%, two aspect of visible light section as shown in Figure 5, and this embodiment has utilized TiO
2/ ITO or AZOY/Ag/ITO or AZOY/TiO
2The rete of continuous magnetron sputtering method plating of three layers or four layers repetitive structure, not only rete is firm, the visible light transmissivity height satisfies household electrical appliances anti-electromagnetic radiation standard, surface resistivity is less than 1.5 Ω/cm
2, production efficiency height, yield rate height, cost are low, also because of watching face to increase the antireflection coatings, improved picture quality, and more important is to have improved the serviceable life that EMI shields coatings.
The thickness parameter such as the following table of 13 layers or 17 layers EMI shielding coatings in the present embodiment 1:
| Film material (13 layers) | Thickness (nm) | Film material (17 layers) | Thickness (nm) |
| Substrate | Substrate | ||
| TiO 2 | 25 | |
30 |
| ITO or AZOY | 5 | ITO or AZOY | 4 |
| Ag | 18 | Ag | 15 |
| ITO or AZOY | 5 | ITO or AZOY | 4 |
| TiO 2 | 50 | TiO 2 | 60 |
| ITO or AZOY | 5 | ITO or AZOY | 4 |
| Ag | 18 | Ag | 15 |
| ITO or AZOY | 5 | ITO or AZOY | 4 |
| TiO 2 | 50 | TiO 2 | 60 |
| ITO or AZOY | 5 | ITO or AZOY | 4 |
| Ag | 20 | Ag | 17 |
| ITO or AZOY | 5 | ITO or AZOY | 4 |
| TiO 2 | 25 | TiO 2 | 6O |
| ITO or AZOY | 4 | ||
| Ag | 17 | ||
| ITO or AZOY | 4 | ||
| |
30 |
Embodiment 2:
Fig. 6 has provided present embodiment 2 structural drawing.This example 2 basic with embodiment 1 with, not existing together is that EMI shields no AR rete on the plastic membranous layer of coatings.
Embodiment 3:
Fig. 7 has provided present embodiment 3 structural drawing.Present embodiment 3 is basic same with embodiment 1, and not existing together is no AR rete on the another side of substrate.At no this planar survey of AR rete, reflectivity is less than 5%, if four silver medal structures, reflectivity can satisfy the request for utilization of optical filter less than 4%, and transmitance and reflectivity all refer to visible light mean value.This optical filter can this simultaneously use the subsides plastic foil and install in the face of spectators.If like this, watch the face reflectivity less than 3%, transmittance also can satisfy greater than 30%, the requirement less than 75%.
Embodiment 4:
Fig. 8 has provided present embodiment 4 structural representations.Present embodiment 4 is basic same with embodiment 1, and not existing together is all not have the AR rete on the another side of plastic membranous layer and substrate.This optical filter will not paste this face of AR plastic foil and will install and use in the face of spectators, visible light transmissivity can satisfy greater than 30% less than 75%, reflectivity is less than 6% requirement (if four silver medal structures, reflectivity is less than 5%), and transmitance and reflectivity all refer to visible light section mean value.
Embodiment 5:
Fig. 9 has provided the structural representation of present embodiment 5.
Present embodiment will be coated with the PMMA substrate of EMI shielding coatings, utilize acrylate adhesives and PDP display board to be bonded as one, the face of watching at substrate is pasted the BOPET plastic film 8 that is coated with the AR film, attenuate display thickness, the plastic foil to PDP display board one side of the foregoing description has been changed to cementing agent, the function that prevents oxidation of EMI screened film and erosion has still been arranged.If reflectivity requires below 6%, this embodiment can not watch the face subsides to be coated with the plastic foil 8 of AR film and more to save cost yet.
Embodiment 6:
Figure 10 has provided the structural representation of present embodiment 6.
Present embodiment utilizes winding film coating machine will be coated with EMI barrier film layer 2 and another side is coated with the thin substrate 1 of the BOPET of AR rete 6 and utilizes photo curable acrylate adhesives 3 that EMI coatings 2 and glass substrate 9 (or polymethacrylate PMMA plate) bonding are combined with each other and become optical filter, this method obtains is coated with the EMI screened film soft substrate of BOPET of can reeling, because of coiling plating speed fast, make continuous production and compound optical filter cost lower, and can use at the plate face of different sizes and fit, and the optical filter two sides all can be installed in the face of spectators as required.
The various embodiments described above are that foregoing of the present invention is further described, but this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to the foregoing description.All technology that realizes based on foregoing all belong to scope of the present invention.
Claims (14)
1. the optical filter with anti-electromagnetic radiation and filtering functions of a plasma scope, it is characterized in that comprising the transparent resin substrate, the coatings that anti-electromagnetic radiation and filtering functions are arranged that the method that adopts continuous magnetron sputtering plates in the one side of transparent resin substrate, with the compound prevention coatings oxidation of coatings or the plastic membranous layer of erosion, the metallic film as extraction electrode that contacts with coatings, coatings are by three groups or four groups of TiO
2/ AZOY/Ag/AZOY/TiO
2Or TiO
2/ ITO/Ag/AZOY/TiO
2Or TiO
2/ ITO/Ag/ITO/TiO
2Or TiO
2/ AZOY/Ag/ITO/TiO
213 layers of the retes that repeats to form or the 17 tunic layer structure of such film system, wherein AZOY is that zinc paste and aluminium oxide mix the oxide membranous layer that material is formed, ITO is the rete that ginseng tin indium oxide material is formed, and the structure of plating 13 tunic layers is on the transparent resin substrate: the ground floor rete is TiO
2, second layer rete is AZOY or ITO, and the trilamellar membrane layer is Ag, and the 4th tunic layer is AZOY or ITO, and the layer 5 rete is TiO
2, the layer 6 rete is AZOY or ITO, and the layer 7 rete is Ag, and the 8th tunic layer is AZOY or ITO, and the 9th tunic layer is TiO
2, the tenth tunic layer is AZOY or ITO, and the eleventh floor rete is Ag, and the Floor 12 rete is AZOY or ITO, and the tenth trilamellar membrane layer is TiO
2, the structure of plating 17 tunic layers is on glass substrate: the ground floor rete is TiO
2, second layer rete is AZOY or ITO, and the trilamellar membrane layer is Ag, and the 4th tunic layer is AZOY or ITO, and the layer 5 rete is TiO
2, the layer 6 rete is AZOY or ITO, and the layer 7 rete is Ag, and the 8th tunic layer is AZOY or ITO, and the 9th tunic layer is TiO
2, the tenth tunic layer is AZOY or ITO, and the eleventh floor rete is Ag, and the Floor 12 rete is AZOY or ITO, and the tenth trilamellar membrane layer is TiO
2, the 14 tunic layer is AZOY or ITO, and the 15 tunic layer is Ag, and the 16 tunic layer is AZOY or ITO, and the 17 tunic layer is TiO
2
2. the optical filter with anti-electromagnetic radiation and filtering functions of plasma scope as claimed in claim 1, each the tunic layer thickness that it is characterized in that having in 13 layers or the 17 layers of structure coatings is followed successively by following thickness range: TiO by substrate to outermost layer
2Be 1.0～150nm, AZOY or ITO are 10～30nm, and Ag is 5～30nm, and AZOY or ITO are 1.0～30nm, TiO
2Be 10～200nm, AZOY or ITO are 1.0～30nm, and Ag is 5～30nm, and AZOY or ITO are 1.0～30nm, TiO
2Be 10～200nm, AZOY or ITO are 1.0～30nm, and Ag is 5～30nm, and AZOY or ITO are 1.0～30nm, TiO
2Be 10～200nm, AZOY or ITO are 1.0～30nm, and Ag is 5～30nm, and AZOY or ITO are 1.0～30nm, TiO
2Be 10～150nm.
3. the optical filter with anti-electromagnetic radiation and filtering functions of plasma scope as claimed in claim 1, it is characterized in that metallic film is to be composited around the coating transparent resin substrate and by conducting resinl on the metallic film and coatings bonding, or the metallic conduction cementing agent is by being composited with the coatings bonding around the printing curing coating transparent resin substrate.
4. the optical filter with anti-electromagnetic radiation and filtering functions of plasma scope as claimed in claim 1 is characterized in that pasting compound with the compound prevention coatings oxidation of coatings or the plastic membranous layer of erosion by adhesive layer and coatings.
5. the optical filter with anti-electromagnetic radiation and filtering functions of gas ions display as claimed in claim 1, it is characterized in that plastic membranous layer is to add blue pigment in the polyester film of two-way stretch or the polycarbonate film adhesive to regulate and the yellow characteristic light of the 596nm that the decay display sends, add at least a in purple, redness, the black pigment to regulate the colour temperature and the transmittance of display.
6. as the optical filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～5, it is characterized in that being coated with on the plastic membranous layer anti-reflection function rete, its anti-reflection function rete is at least by SiO
2With Nb
2O
5Or TiO
2Two layers of composition.
7. as the optical filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～5, it is characterized in that the anti-reflection function rete that adopts the continuous magnetron sputtering method to plate is arranged on the another side of transparent resin substrate, in the anti-reflection function rete at least by SiO
2With Nb
2O
5Or TiO
2Two layers of composition.
8. as the optical filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～5, the plastic membranous layer that it is characterized in that prevention coatings oxidation compound on the coatings of transparent resin substrate or erosion is an adhesive layer, has added the blue pigment of the yellow characteristic light of the colour temperature of regulating display and the pigment of transmittance and the 596nm that the decay display sends therein at least.
9. as the optical filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～5, it is characterized in that this optical filter by with the compound prevention coatings oxidation of coatings or the plastic membranous layer of erosion, with pigment and the ultraviolet light absorber of this plastic layer as adhesive layer and adding adjusting colour temperature and transmittance, direct and plasma display panel is pasted and is one.
10. as the optical filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～5, it is characterized in that the surface resistivity≤1.5 Ω/cm of coatings
2
11. optical filter with anti-electromagnetic radiation and filtering functions as the described plasma scope of one of claim 1～5, the transparent resin substrate that it is characterized in that optical filter is the substrate of reeling that adopts polymethylmethacrylate or polyester or makrolon material, and its thickness is less than 0.3mm.
12. optical filter with anti-electromagnetic radiation and filtering functions as the described plasma scope of one of claim 1～5, it is characterized in that watching planar survey at display, transmittance during the visible light 380～780nm of optical filter greater than 30% less than 75%, transmittance during infrared light 850nm is less than 18%, and the transmittance during 950nm is less than 10%.
13., it is characterized in that the reflectivity of measuring optical filter visible light 380～780nm at the transparent resin substrate another side that the coating anti reflection functional film layer is arranged is lower than 6% as the optical filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～5.
14. optical filter with anti-electromagnetic radiation and filtering functions as the described plasma scope of one of claim 1～5, it is characterized in that being coated with on the another side for the transparent resin substrate anti-reflection function rete, the reflectivity when this planar survey optical filter visible light 380～780nm is lower than 4%.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610021717XA CN100487499C (en) | 2006-08-31 | 2006-08-31 | Optical filter having electromagnetic radiation prevention and light filtering function of plasma display |
| KR1020070086025A KR100924900B1 (en) | 2006-08-31 | 2007-08-27 | Light filter plate for plasma display panel with anti-electromagnetic radiation light-filtering functions |
| JP2007223782A JP2008058973A (en) | 2006-08-31 | 2007-08-30 | Optical filter member having functions of preventing electromagnetic waves and of filtering light for plasma display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610021717XA CN100487499C (en) | 2006-08-31 | 2006-08-31 | Optical filter having electromagnetic radiation prevention and light filtering function of plasma display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101135741A true CN101135741A (en) | 2008-03-05 |
| CN100487499C CN100487499C (en) | 2009-05-13 |
Family
ID=39159918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610021717XA Expired - Fee Related CN100487499C (en) | 2006-08-31 | 2006-08-31 | Optical filter having electromagnetic radiation prevention and light filtering function of plasma display |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2008058973A (en) |
| KR (1) | KR100924900B1 (en) |
| CN (1) | CN100487499C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101833125A (en) * | 2010-05-27 | 2010-09-15 | 四川长虹电器股份有限公司 | Light filtering sheet with electromagnetic shielding function and display using same |
| CN101847554A (en) * | 2010-06-01 | 2010-09-29 | 四川长虹电器股份有限公司 | Light filter electromagnetic shielding membrane extraction electrode manufacturing method |
| CN101881850A (en) * | 2010-06-24 | 2010-11-10 | 四川长虹电器股份有限公司 | Display optical filter with anti-electromagnetic radiation and filtering functions and display using same |
| CN101935169A (en) * | 2010-09-19 | 2011-01-05 | 天津耀皮工程玻璃有限公司 | Film glass structure adopting TiO2 ceramic target magnetron sputtering and method thereof |
| CN101996528A (en) * | 2009-08-04 | 2011-03-30 | 三星电子株式会社 | Display apparatus for preventing electromagnetic interference (emi) |
| CN104210199A (en) * | 2013-05-30 | 2014-12-17 | 三星显示有限公司 | Window for display device and display device including the window |
| CN104409446A (en) * | 2014-10-24 | 2015-03-11 | 苏州日月新半导体有限公司 | Conformal shielding structure applying lead bonding, and manufacture process thereof |
| CN105738995A (en) * | 2016-04-27 | 2016-07-06 | 深圳力合光电传感股份有限公司 | Cutoff filter |
| CN112902751A (en) * | 2021-01-14 | 2021-06-04 | 中国电子科技集团公司第三十三研究所 | High-shielding-effect high-light-transmission temperature-resistant pressure-resistant shielding aiming glass with transparent ceramic substrate |
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| KR20100069798A (en) * | 2008-12-17 | 2010-06-25 | 삼성코닝정밀소재 주식회사 | Display filter and display device for removing indoor air pollutant |
| CN102924990A (en) * | 2012-10-16 | 2013-02-13 | 上海瑞冕新材料科技有限公司 | Transparent antireflection coating liquid and preparation method and application thereof |
| CN102981199A (en) * | 2012-11-13 | 2013-03-20 | 东北大学秦皇岛分校 | Surface plasma nanometer ring light filter |
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| DE69739716D1 (en) * | 1996-09-26 | 2010-02-04 | Asahi Glass Co Ltd | Protective plate for a plasma display and method of making the same |
| JP2006058896A (en) * | 2000-02-01 | 2006-03-02 | Mitsui Chemicals Inc | Filter for plasma display, and display device and method for manufacturing the same |
| EP1659845B1 (en) * | 2003-08-25 | 2011-04-13 | Asahi Glass Company Ltd. | Electromagnetic shielding multilayer body and display using same |
| EP1849594B1 (en) * | 2005-02-17 | 2011-09-28 | Asahi Glass Company, Limited | Conductive laminated body, electromagnetic wave shielding film for plasma display and protection plate for plasma display |
-
2006
- 2006-08-31 CN CNB200610021717XA patent/CN100487499C/en not_active Expired - Fee Related
-
2007
- 2007-08-27 KR KR1020070086025A patent/KR100924900B1/en not_active IP Right Cessation
- 2007-08-30 JP JP2007223782A patent/JP2008058973A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101996528A (en) * | 2009-08-04 | 2011-03-30 | 三星电子株式会社 | Display apparatus for preventing electromagnetic interference (emi) |
| CN101833125A (en) * | 2010-05-27 | 2010-09-15 | 四川长虹电器股份有限公司 | Light filtering sheet with electromagnetic shielding function and display using same |
| CN101847554A (en) * | 2010-06-01 | 2010-09-29 | 四川长虹电器股份有限公司 | Light filter electromagnetic shielding membrane extraction electrode manufacturing method |
| CN101847554B (en) * | 2010-06-01 | 2011-12-07 | 四川长虹电器股份有限公司 | Light filter electromagnetic shielding membrane extraction electrode manufacturing method |
| CN101881850A (en) * | 2010-06-24 | 2010-11-10 | 四川长虹电器股份有限公司 | Display optical filter with anti-electromagnetic radiation and filtering functions and display using same |
| CN101935169A (en) * | 2010-09-19 | 2011-01-05 | 天津耀皮工程玻璃有限公司 | Film glass structure adopting TiO2 ceramic target magnetron sputtering and method thereof |
| CN104210199A (en) * | 2013-05-30 | 2014-12-17 | 三星显示有限公司 | Window for display device and display device including the window |
| CN104409446A (en) * | 2014-10-24 | 2015-03-11 | 苏州日月新半导体有限公司 | Conformal shielding structure applying lead bonding, and manufacture process thereof |
| CN105738995A (en) * | 2016-04-27 | 2016-07-06 | 深圳力合光电传感股份有限公司 | Cutoff filter |
| CN112902751A (en) * | 2021-01-14 | 2021-06-04 | 中国电子科技集团公司第三十三研究所 | High-shielding-effect high-light-transmission temperature-resistant pressure-resistant shielding aiming glass with transparent ceramic substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100487499C (en) | 2009-05-13 |
| KR20080020504A (en) | 2008-03-05 |
| JP2008058973A (en) | 2008-03-13 |
| KR100924900B1 (en) | 2009-11-02 |
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