CN2810105Y - Light filter plate for plasma display with functions of electromagnetic radiation prevention and light filtration - Google Patents
Light filter plate for plasma display with functions of electromagnetic radiation prevention and light filtration Download PDFInfo
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- CN2810105Y CN2810105Y CN 200520034826 CN200520034826U CN2810105Y CN 2810105 Y CN2810105 Y CN 2810105Y CN 200520034826 CN200520034826 CN 200520034826 CN 200520034826 U CN200520034826 U CN 200520034826U CN 2810105 Y CN2810105 Y CN 2810105Y
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- filter
- electromagnetic radiation
- tio
- coatings
- filtering functions
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Abstract
The utility model provides a light filter plate for a plasma (PDP) display with functions of electromagnetic radiation prevention and light filtration, which comprises a transparent resin base sheet or a glass base sheet, a plated film layer, a plastic film layer and a metal foil piece. The plated film layer with functions of electromagnetic radiation prevention and light filtration is plated on one surface of the base sheet by adopting a continuous magnetron sputtering method. The plastic film layer is compounded with the plated film layer for inhibiting the plated film layer from oxidation or erosion. The metal foil piece is in contact with the plated film layer and is regarded as an extraction electrode. The plated film layer adopts a structure with 13 layers or 17 layers, which is composed of a film series repeated plated layer of TiO 2/ZnO (SnO 2) /Ag/NiCrOx (NiCrOx) /TiO 2. The utility model has the advantages of cost reduction, high productive efficiency, high strength, high light transmittance, electromagnetic radiation prevention, good light filtering effect and long service life.
Description
Technical field:
The utility model is relevant with the filter in the display device, and is special relevant with the filter with anti-electromagnetic radiation and filtering functions in the plasma scope (PDP).
Background technology:
The antireflection of present PDP filter and anti-electromagnetic radiation and filtering functions are to form like this: the outer 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 woven wire 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 orange-colored light decay plastic film.Because lamination lamination composite methods, various functional membranes are on one deck diaphragm, attaching process and combination process require high, be difficult for mechanization and produce continuously, and the cost height, rate of finished products is low, production efficiency is low, and light transmittance is low.
Also have the patent documentation name of publication number CN1509490A to be called the plasma display panel filter and disclose 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 filter needs, they are that the difference plated film is on plastic basis material or plastic film, 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 manufacture method of lamination does not still have the essence progress with preceding method again, and still efficient is low, rate of finished products is low, cost is high.Particularly multi-level lamination lamination, the residual volatile matter of the solvent that steam bubble between the lamination and binding agent may exist greatly reduces rate of finished products.
The patent documentation that also has number of patent application 200410069275.7; name is called laminated body and uses the filter of display of this laminated body to disclose; 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 filter needs most is called erosion the cohesion of the silver atoms of silver-colored thin layer in the literature; the silver-colored thin layer that shows as that corrodes produces " white point "; document is said is also promptly increasing by a protective layer 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 silver thin layer, and this protective layer 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 oxide, indium oxide, antimonous oxide, aluminium oxide, zirconia etc., more preferential selective oxidation antimony tin monoxide composite oxides, antimony oxide one zinc oxide composite oxides.
Adhesive 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 layer, document claims to forming " white point " obviously surprised inhibitory action is arranged.
This metal oxide of solvent or solution coat formation and the thin layer of binding agent combination of utilizing; say with regard to technical 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; in protection aspect uper side surface resistivity, because of being arranged, macromolecule resin participates in combination, and surface resistivity is higher than not increasing this protective layer 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.The document has been talked about the method for controlling that suppresses silver-colored thin layer is corroded or claims to reduce " point certainly "; but be coated with this layer protective layer 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/; also do not reach the standard of household electrical appliance less than 1.5 Ω/; document 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 NiCrOx film and with all the other ZnO/Ag/TiO
2Film organically combines and improves the EMI screening ability, simultaneously the infrared light ultraviolet light has been stopped the report and the prompting of filtering functions.
The utility model content:
The purpose of this utility model is in order to overcome above deficiency, but adopt the method for the continuous magnetically controlled sputter method plated film of large tracts of land, providing a kind of can reduce cost greatly, the production efficiency height, the intensity height, the light transmittance height, anti-electromagnetic radiation and filter effect are good, the filter with anti-electromagnetic radiation and filtering functions of long service life.
The purpose of this utility model is achieved in that
The utility model filter, comprise transparent resin substrate or glass substrate, the coatings that anti-electromagnetic radiation and filtering functions are arranged (EMI layer) that the method that adopts continuous magnetron sputtering plates in the one side of transparent resin substrate or glass substrate, with the compound prevention coatings oxidation of coatings or the plastic membranous layer of erosion, the pieces of metallic foil as extraction electrode that contacts with coatings, coatings are by TiO three layers or four layers
2/ ZnO/Ag/NiCrOx/TiO
2Or TiO
2/ ZnO/Ag/NiCrNx/TiO
2Or TiO
2/ SnO
2/ Ag/NiCrOx/TiO
2Or TiO
2/ SnO
2/ Ag/NiCrNx/TiO
213 layers or 17 layers of structure that the rete that such film structure repeats to form is formed; wherein the X among NiCrOx or the NiCrNx is 1～6; plastic film can adopt light 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; can also be used to preventing the glass fragmentation; adopt high-intensity plastic film the glass impact resistance can be improved; make it to become safety glass; be not only a good filter of performance; and may and then replace the PDP display protection, particularly use the continuous magnetron sputtering method at Ag coating and TiO
2Plated layer of Ni CrOx between the coating, make Ag coating increase anti-oxidant and erosiveness, solve so-called " white point " problem, or not on the contrary coatings surface resistivity≤1.5 Ω/ is not had contribution because of this layer plated film that repeats three layers or four layers reduces the filter overall light transmittance requirement.And the production efficiency height, coating process is unified, convenient, and cost is low.
Above-mentioned pieces of metallic foil coats around the substrate and bonds compound by conducting resinl and coatings, tinsel not only can be contacted EMI shielding coatings but also be the U type and coat the substrate edge or only be the U type in EMI shielding plated film face surrounding along stickup and coat the substrate edge, tinsel shields the electromagnetic radiation of coatings shielding under stopping as extraction electrode with EMI and passes to display until ground connection.
Above-mentioned plastic membranous layer is pasted compound by adhesive layer and coatings, plastic film self also can become adhesive layer because of needs and PDP display panel bonding.
Above-mentioned plastic membranous layer is the polyester film (BOPET) of biaxial tension, also can be polycarbonate membrane (PC film), polyvinyl butyral resin (PVB) film or polyester film (PET film).Add blueness or orange or red pigment in the binding agent to regulate the colour temperature of display.Also can in binding agent, add ultra-violet absorber and antioxidant increase ageing resistance because of needs.
Be coated with anti-reflection function rete (AR rete) on the above-mentioned plastic film, this anti-reflection function rete is at least by two layers of SiO
2/ Nb
2O
5Or SiO
2/ TiO
2Form, paste the plastic film that is coated with the AR film on EMI shielding plated film face, the visible light that filter is seen through has higher transmitance, improves the brightness of display.
The anti-reflection function rete that adopts the continuous magnetron sputtering method to plate is arranged on the above-mentioned transparent resin substrate or the another side of glass substrate, in the anti-reflection function rete at least by two layers of SiO
2/ Nb
2O
5Or SiO
2/ TiO
2Form, 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: by learning reflectivity＜0.5% in its reflectivity curve in the visible light section; the more important thing is can be with the AR face directly facing to the people; reduce the reflection of substrate face to surrounding environment; improve picture quality; solving present many PDP displays, to watch face be the serious problem of protection screen reflection; also be about to a filter and replace finishing the function that existing display needs filter and protection screen two boards to finish jointly; saved material and cost, made display thinner.
This above-mentioned filter by with the compound prevention coatings oxidation of coatings or the plastic layer of erosion, as adhesive and add pigment and the ultra-violet absorber of regulating colour temperature, directly pasting with plasma display panel is one with this plastic layer.
The surface resistivity of above-mentioned coatings≤1.5 Ω/.
Above-mentioned filter is half tempered glass or the toughened glass that adopts chemical method or physical method to handle; increase its intensity; add and paste compound with high-intensity plastic film; add the anti-electromagnetic radiation and the filtering functions of existing EMI coatings, have ready conditions the fully filter of the present PDP display of replacement and the function of top protection screen piece plate thereof.
Above-mentioned filter is the substrate that adopts polymethyl methacrylate (PMMA) or polyester (PET) or Merlon (PC) material; the filter substrate adopts the transparent resin substrate; can alleviate display weight; improve filter intensity and the PDP display panel is shielded; if watch face plating AR film or utilize organosilicon immersion plating hardened layer at the transparent resin substrate; use the also high function that can replace the filter and the top protection screen piece plate thereof of present PDP display fully of intensity not only in light weight as protection screen.
Above-mentioned display is watched planar survey, the visible light transmittance rate of filter 〉=65%.
The utility model filter can only be pasted with the metal forming as extraction electrode that has the plastic film that stops coatings oxidation and erosion and contact with the EMI coatings by coated glass that plates EMI shielding coatings or transparent resin substrate and be composited, and becomes the most basic filter of PDP display.Also can utilize the plastic film that pastes to plate the AR film thereon, increase the filter visible light transmissivity, and make glass become safety glass.Can also also plate the AR film at the another side of substrate EMI shielding coatings; it is faced watches the face also can antireflection; particularly anti-environment improves the picture quality of watching to the light reflection of screen, makes the function of this filter expand the function that also may replace the above-mentioned two boards of existing PDP display; save cost; reduce display thickness, and make protection screen brighter safer, make filter more perfect than original technology; performance is better, and the life-span is longer.
The utility model filter cost is low, the production efficiency height, and the intensity height, the light transmittance height, anti-electromagnetic radiation and filter effect are good, long service life.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is three layers of multiple complex structure schematic diagram of anti-electromagnetic radiation coatings.
Fig. 3 for electromagnetism is involved infrared, ultraviolet wave-wave shielding and filtration and visible light transmittance rate curve chart.
Fig. 4 is the anti-reflection film structure schematic diagram.
Fig. 5 is another structural representation of the utility model.
Fig. 6 is the utility model structural representation again.
Fig. 7 does not have the utility model structural representation of anti-reflection function for one side.
Fig. 8 does not have the utility model structural representation of anti-reflection function for another side.
Fig. 9 is the utility model structural representation again.
Embodiment:
Embodiment 1:
Fig. 1 has provided present embodiment 1 figure.Referring to Fig. 1, substrate 1 adopts the thick optical grade float glass (but tempering) of 3mm or adopts thick polymethyl methacrylate (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/ ZnO (or SnO
2)/Ag/NiCrO
x(or NiCrNx)/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
2, ZnO adopts the method preparation of twin intermediate frequency reaction magnetocontrol sputtering, and Ag and NiCrO
x(be to adopt plane direct current magnetron sputtering to be equipped with.If at three layers of TiO
2/ ZnO (or SnO
2)/Ag/NiCrO
x(or NiCrNx)/TiO
2Repetitive structure rete (i.e. three silver medals) is gone up increases TiO
2/ ZnO (or SnO
2)/Ag/NiCrO
x(or NiCrNx)/TiO
2Rete i.e. four layers of composite construction (i.e. four silver medals), becomes 17 layers at last, the X=1 or 2 among the NiCrOx (or NiCrNx), and various performance index are more guaranteed, and particularly surface resistivity can be dropped to by≤1.5 Ω/ ≤1.3 Ω/below the.The performance of the EMI barrier film layer of producing as shown in Figure 3, the transmitance of visible light should be greater than 70%, and should descend rapidly in the near-infrared section.Surface resistance R=1.3 ± 0.02 Ω/, sheet resistance is more little, and the ability of anti-electromagnetic radiation is strong more.Paste the last layer light 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 biaxial tension that stops coatings oxidation and erosion is made.Paste with conducting resinl 4 and EMI shields that coatings contacts and as the tinsel 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 filter EMI film whether towards display or will not replace the function of existing display filter and two blocks of plates of protection screen, tinsel 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 filter only as anti-electromagnetic radiation and filtering functions use the time, the filter two sides can make things convenient for installed surface to the PDP display.Another side at plastic film 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 are as shown in Figure 5 at reflectivity R＜0.5% of visible light section.This embodiment has utilized TiO
2/ ZnO (or SiO
2)/Ag/NiCrO
2(or NiCrNx)/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, satisfy household electrical appliances anti-electromagnetic radiation standard, surface resistivity is less than 1.5 Ω/, and production efficiency height, rate of finished products height, cost are low, also because of watching face to increase the antireflection coatings, improved picture quality, more important is the useful life of having improved EMI shielding coatings.
Embodiment 2:
Fig. 6 has provided present embodiment 2 structure charts.This example 2 basic with embodiment 1 with, not existing together is that BMI shields no AR rete on the plastic membranous layer of coatings.
Embodiment 3:
Fig. 7 has provided present embodiment 3 structure charts.Present embodiment 3 is basic same with embodiment 1, and not existing together is no AR rete on the another side of substrate.
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 but not have the AR rete on the another side of plastic membranous layer and substrate.
Embodiment 5:
Fig. 9 has provided the structural representation of present embodiment 5.
This embodiment will be coated with the PMMA substrate of EMI shielding coatings, utilize acrylate adhesives and PDP display panel 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 film to PDP display panel one side of the foregoing description has been changed to binding agent, the function that prevents oxidation of EMI screened film and erosion has still been arranged.This embodiment can not watch face to paste the plastic film that is coated with the AR film yet, and the protection screen that is coated with AR in setting before is better.
The various embodiments described above are that foregoing of the present utility model is further described, but this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to the foregoing description.All technology that realizes based on foregoing all belong to scope of the present utility model.
Claims (11)
1, a kind of filter of plasma scope with anti-electromagnetic radiation and filtering functions, it is characterized in that comprising transparent resin substrate or glass 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 or glass substrate, with the compound prevention coatings oxidation of coatings or the plastic membranous layer of erosion, the pieces of metallic foil that contacts with coatings, coatings as extraction electrode be by three layers or four layers of TiO
2/ ZnO/Ag/NiCrOx/TiO
2Or TiO
2/ ZnO/Ag/NiCrNx/TiO
2Or TiO
2/ SnO
2/ Ag/NiCrOx/TiO
2Or TiO
2/ SnO
2/ Ag/NiCrNx/TiO
213 layers or 17 layers of structure that the rete that repeats to form of such film system is formed, wherein the X among NiCrOx or the NiCrNx is 1～6.
2, the filter with anti-electromagnetic radiation and filtering functions of plasma scope as claimed in claim 1 is characterized in that pieces of metallic foil coats around the substrate and bonds compound by conducting resinl and coatings.
3, the filter with anti-electromagnetic radiation and filtering functions of plasma scope as claimed in claim 1 is characterized in that plastic film is compound by adhesive layer and coatings stickup.
4, the filter with anti-electromagnetic radiation and filtering functions of gas ions display as claimed in claim 3, it is characterized in that plastic membranous layer is polyester film or the polycarbonate membrane or the polyvinyl butyral film of biaxial tension, add blueness or orange or red pigment in the binding agent to regulate the colour temperature of display.
5, as the filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～4, it is characterized in that being coated with on the plastic film anti-reflection function rete, its anti-reflection function rete is at least by two layers of SiO
2/ Nb
2O
5Or SiO
2/ TiO
2Form.
6, as the filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～4, 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 or glass substrate, in the anti-reflection function rete at least by two layers of SiO
2/ Nb
2O
5Or SiO
2/ TiO
2Form.
7, as the filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～4, it is characterized in that this filter by with the compound prevention coatings oxidation of coatings or the plastic layer of erosion, this plastic layer is regulated the pigment and the ultra-violet absorber of colour temperature as adhesive and adding, and direct and plasma display panel is pasted and is one.
8,, it is characterized in that the surface resistivity≤1.5 Ω/ of coatings as the filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～4.
9,, it is characterized in that filter is half tempered glass or the toughened glass that adopts chemical method or physical method to handle as the filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of claim 1～5.
10,, it is characterized in that filter is the substrate that adopts polymethyl methacrylate or polyester or makrolon material as the filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～5.
11, as the filter with anti-electromagnetic radiation and filtering functions of the described plasma scope of one of claim 1～5, it is characterized in that watching planar survey the visible light transmittance rate of filter 〉=65% at display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034826 CN2810105Y (en) | 2005-07-14 | 2005-07-14 | Light filter plate for plasma display with functions of electromagnetic radiation prevention and light filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034826 CN2810105Y (en) | 2005-07-14 | 2005-07-14 | Light filter plate for plasma display with functions of electromagnetic radiation prevention and light filtration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2810105Y true CN2810105Y (en) | 2006-08-23 |
Family
ID=36926287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520034826 Expired - Fee Related CN2810105Y (en) | 2005-07-14 | 2005-07-14 | Light filter plate for plasma display with functions of electromagnetic radiation prevention and light filtration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2810105Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419473C (en) * | 2005-07-14 | 2008-09-17 | 甘国工 | Light filter of plasma display device with anti-electromagnetic radiation and light-filtering functions |
| CN101154544B (en) * | 2006-09-27 | 2011-04-13 | 甘国工 | Filter plate with anti-electromagnetic radiation and optical filtering function of plasma display |
-
2005
- 2005-07-14 CN CN 200520034826 patent/CN2810105Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419473C (en) * | 2005-07-14 | 2008-09-17 | 甘国工 | Light filter of plasma display device with anti-electromagnetic radiation and light-filtering functions |
| CN101154544B (en) * | 2006-09-27 | 2011-04-13 | 甘国工 | Filter plate with anti-electromagnetic radiation and optical filtering function of plasma display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060823 |