CN101441285A - Reflection sheet - Google Patents
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- CN101441285A CN101441285A CNA2007101876997A CN200710187699A CN101441285A CN 101441285 A CN101441285 A CN 101441285A CN A2007101876997 A CNA2007101876997 A CN A2007101876997A CN 200710187699 A CN200710187699 A CN 200710187699A CN 101441285 A CN101441285 A CN 101441285A
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- reflector plate
- reflector
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- diffusion layer
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Abstract
The invention relates to a reflective film, which mainly comprises a substrate, a metal layer, a multi-layer reflector and a diffusion layer; wherein the multi-layer reflector is provided with more than two layers of reflective layers with different indexes of refraction; the multi-layer reflector is arranged on the upper surface of the metal layer, or the substrate can be arranged between the multi-layer reflector and the metal layer; the diffusion layer which is arranged on the lower surface of the substrate or the metal layer can acquire favorable reflectivity (as high as 95-98 percent) in a broad wavelength scope (about 380-780nm) by means of the metal layer and the multi-layer reflector; furthermore, the diffusion layer can further be used for leading the passed light to achieve the effect of light diffusion.
Description
Technical field
The manufacture method and the application thereof of the relevant a kind of reflector plate of the present invention, reflecting body, purpose is providing preferable reflectivity, when being applied to reflecting body under lamp reflector, the light guide plate, back lighting device and liquid crystal indicator, can obtain the reflector plate of higher brightness.
Background technology
Press, generally be applied in the LCD of massaging device, can be according to the demand of actual design, and select to utilize the back lighting device framework of straight-down negative or side-light type; Shown in Figure 1A, be the basic structure synoptic diagram of a side-light type back lighting device framework, it mainly is provided with light source 12 in a carrier 11, and a light guide plate 13 plate ends are set in the opening part of carrier 11, light guide plate 13 tops then are provided with several pieces of blooming pieces 14 and liquid crystal panel 15 in regular turn, with the plate face ejaculation that allows light source 12 light go into light guide plate 13 and to expect, to reach the effect that liquid crystal panel 15 shows towards light guide plate 13 from the plate end-fire; Wherein, diffusion sheet 141, brightening piece 142 and last diffusion sheet 143 are arranged at light guide plate 13 tops in regular turn under each blooming piece 14 general using, to increase the diffusion effect of light sources to reach equal light effect by each blooming piece 14.
In addition, be provided with a reflector plate 16, under the effect of reflector plate 16, allow light source 12 light penetrate towards light source outgoing plane direction as far as possible, to increase the brightness expression effect of light source outgoing plane in light guide plate 13 belows; Only, the reflex of individual reflection sheet 16 though part light can be penetrated towards light source outgoing plane direction, can be omitted the light of small part, and can't reach the most effective utilization of light source.
So promptly occur as TaiWan, China patent announcement number CN1791810 number and CN1745317 number, it all is to include metal level 17, high refractive index layer 18 and low-index layer 19, shown in Figure 1B, and order from top to bottom is high refractive index layer 18, low-index layer 19 and metal level 17, to form a reflecting body with high reflectance, and this reflecting body is when being applied in the back lighting device, the light that its light-emitting area is sent is uneven light, the for example residual light that lamp shadow is arranged, then can on the picture of liquid crystal indicator, produce luminance difference, the infringement picture quality.Therefore, in this lighting device, require to have the good luminous quality that is evenly distributed in the light-emitting area integral brightness.
So, can further on this reflecting body, be formed with the structure of waveform or chevron, with the effect that light is spread in order to reach the luminescent quality that integral brightness is evenly distributed; Yet, utilizing under the above-mentioned reflecting body situation, reflecting body complex-shaped, and be difficult to set the optimum shape that luminescent quality is improved, also exist reflecting body to need to process, need set the problem of the position relation of light source and reflector shape in addition with high precision.
Summary of the invention
Fundamental purpose of the present invention is promptly in manufacture method that a kind of reflector plate, reflecting body are provided and application thereof, purpose is the reflectivity that cremasteric reflex sheet one is preferable, when being applied to lamp reflector, back lighting device and liquid crystal indicator, can obtain the reflector plate of higher brightness.
Take off purpose on reaching, reflector plate of the present invention consists predominantly of base material, metal level, multilayer reflector and diffusion layer, this multilayer reflector is provided with the different reflection horizon of refractive index more than two layers, wherein, this multilayer reflector is located at the upper surface of metal level, perhaps this multilayer reflector and metal interlevel can be provided with base material, and this diffusion layer can be located at the lower surface of base material or metal level, can (have preferable reflectivity (can reach 95～98%) in about 380～780nm), and more can utilize this diffusion layer to make the light that passes through reach the effect of light diffusion simultaneously in the wavelength coverage of broadness by metal level and multilayer reflector.
Description of drawings
Fig. 1 is for practising the structural representation that side light type back light module is arranged;
Fig. 2 is the structural representation of the first embodiment reflector plate among the present invention;
Fig. 3 is the schematic flow sheet of the first embodiment reflector plate manufacturing step among the present invention;
Fig. 4 is the structural representation of the second embodiment reflector plate among the present invention;
Fig. 5 is the schematic flow sheet of the second embodiment reflector plate manufacturing step among the present invention;
Fig. 6 is the structural representation of the 3rd embodiment reflector plate among the present invention;
Fig. 7 is the schematic flow sheet of the 3rd embodiment reflector plate manufacturing step among the present invention;
Fig. 8 A, B are the structural representation of fourth, fifth embodiment reflector plate among the present invention;
Fig. 9 A, B, C are the 6th, seven, eight embodiment reflector plate structure synoptic diagram among the present invention;
Figure 10 A, B are applied to the structural representation of lamp reflector for reflector plate among the present invention;
Figure 11 A, B are applied to side-light type back lighting device structural representation for reflector plate among the present invention;
Figure 12 A, B are applied to the structural representation of downward back electro-optical device for reflector plate among the present invention.
[figure number explanation]
Carrier 11 light sources 12 light guide plate 13
14 times diffusion sheets of blooming piece, 141 brightening pieces 142
Metal level 17 high refractive index layers 18 low-index layers 19
231 second reflection horizon 232, multilayer reflector 23 first reflection horizon
The 3rd reflection horizon 233 N reflection horizon N diffusion layers 24
Macromolecule resin 241 diffusion particles 242 hard conatings 25
Carrier 41 light supply apparatuses 42 light guide plate 43
Diffuser plate 44
Embodiment
Characteristics of the present invention can be consulted the detailed description of the graphic and embodiment of this case and obtained to be well understood to.
Reflector plate of the present invention, the structure of this reflector plate 2 includes as shown in Figure 2 at least:
One base material 21, this base material 21 can be transparent resin material.
One metal level 22, this metal level 22 is located at a side surface of this base material 21, and among the embodiment as shown in the figure, this metal level 22 is located at the upper surface of base material 21, and this metal level 22 can be metal materials such as aluminium or silver.
One multilayer reflector 23, this multilayer reflector 23 is located at the in addition side surface of metal level 22 with respect to base material 21, this multilayer reflector 23 can be located at the upper surface of metal level 22, this multilayer reflector 23 is provided with the different reflection horizon of refractive index more than two layers, this multilayer reflector 23 includes first reflection horizon 231 in regular turn by metal level 22 tops, second reflection horizon 232, the 3rd reflection horizon 233～the N reflection horizon N, wherein N is less than or equal to 50, the refractive index in this first reflection horizon 231 is less than second reflection horizon 232, and on, refractive index difference is greater than 0.4 between adjacent down reflection horizon, that is first, second reflection horizon 231,232, and second, the 3rd reflection horizon 233,233 refractive index difference is all greater than 0.4, and the refractive index in the 3rd reflection horizon 233 can less than or greater than second reflection horizon 232.
One diffusion layer 24, this diffusion layer 24 is located at the in addition side surface of base material 21 with respect to metal level 22, among this embodiment, this diffusion layer 24 is located at the lower surface of base material 21, include macromolecule resin 241 and plural diffusion particle 242 in this diffusion layer 24, this diffusion particle 242 can be whiteness or its potpourri of titania, barium sulphate, lime carbonate; Certainly, this diffusion layer can also be white or light tight macromolecule resin.
Moreover the manufacture method of reflector plate in the foregoing description as shown in Figure 3, includes the following step:
A, provide a base material, this base material can be transparent resin material, for example polyethylene terephthalate (PET), cellulose triacetate (TAC), poly-how dioctyl phthalate glycol ester (PEN), poly-propylene diester, polyimide, polyethers, polycarbonate, polyamine, tygon, polypropylene or polyvinyl alcohol (PVA), polystyrene, polymethylmethacrylate, Polyvinylchloride, epoxy resin, phenolics etc. or its equivalent.
B, in this base material one side surface, utilize physical vapour deposition (PVD) processing procedure moulding one metal level, and this physical vapour deposition (PVD) processing procedure can be sputter or evaporation coating technique, and this metal level can be made up of metallic element or metal derivative or metal oxide, for example can be aluminium or silver.
C, in the in addition side surface of this metal level with respect to base material, utilize physical vapour deposition (PVD) processing procedure or coating method moulding one multilayer reflector.
D, in the in addition side surface of this base material with respect to metal level, utilize coating method (can be wet coating) moulding one diffusion layer, to finish reflector plate 2 structures shown in first embodiment among Fig. 2.
Among second embodiment as shown in Figure 4, this reflector plate 2 includes equally: base material 21, metal level 22, multilayer reflector 23 and diffusion layer 24, this diffusion layer 24 is located at a side surface (can be upper surface) of base material 21, this metal level 22 is located at the in addition side surface (can be upper surface) of this diffusion layer 24 with respect to base material 21, and this multilayer reflector 23 is located at the in addition side surface (can be upper surface) of metal level 22 with respect to diffusion layer 24, make this reflector plate 2 from top to bottom be in regular turn: multilayer reflector 23, metal level 22, diffusion layer 24 and base material 21, and this multilayer reflector 23 includes first reflection horizon 231 equally in regular turn by metal level 22 tops, second reflection horizon 232, the 3rd reflection horizon 233～the N reflection horizon N, wherein N is less than or equal to 50, the refractive index in this first reflection horizon 231 is less than second reflection horizon 232, and on, refractive index difference is greater than 0.4 between adjacent down reflection horizon.
Moreover the manufacture method of reflector plate among above-mentioned second embodiment as shown in Figure 5, includes the following step:
A, provide a base material, this base material can be transparent resin material, for example polyethylene terephthalate (PET), cellulose triacetate (TAC), poly-how dioctyl phthalate glycol ester (PEN), poly-propylene diester, polyimide, polyethers, polycarbonate, polyamine, tygon, polypropylene or polyvinyl alcohol (PVA), polystyrene, polymethylmethacrylate, Polyvinylchloride, epoxy resin, phenolics etc. or its equivalent.
B, in this base material one side surface, utilize coating method moulding one diffusion layer.
C, in the in addition side surface of this diffusion layer phase for base material, utilize physical vapour deposition (PVD) processing procedure moulding one metal level, and this physical vapour deposition (PVD) processing procedure can be sputter or evaporation coating technique, and this metal level can be made up of metallic element or metal derivative or metal oxide, for example can be aluminium or silver.
D, in the in addition side surface of this metal level with respect to diffusion layer, utilize physical vapour deposition (PVD) processing procedure or coating method moulding one multilayer reflector, and this physical vapour deposition (PVD) processing procedure can be sputter or evaporation coating technique, to finish reflector plate 2 structures shown in second embodiment among Fig. 4.
Among the 3rd embodiment as shown in Figure 6, this reflector plate 2 includes equally: base material 21, metal level 22, multilayer reflector 23 and diffusion layer 24, this metal level 22 is located at a side surface (can be lower surface) of this base material 21, this multilayer reflector 23 is located at the in addition side surface (can be upper surface) of base material 21 with respect to metal level 22, this diffusion layer 24 is located at the in addition side surface (can be lower surface) of metal level 22 with respect to base material 21, make this reflector plate 2 from top to bottom be in regular turn: multilayer reflector 23, base material 21, metal level 22 and diffusion layer 24, and this multilayer reflector 23 includes first reflection horizon 231 equally in regular turn by base material 21 tops, second reflection horizon 232, the 3rd reflection horizon 233～the N reflection horizon N, wherein N is less than or equal to 50, the refractive index in this first reflection horizon 231 is less than second reflection horizon 232, and on, refractive index difference is greater than 0.4 between adjacent down reflection horizon.
Moreover the manufacture method of reflector plate among above-mentioned the 3rd embodiment as shown in Figure 7, includes the following step:
A, provide a base material, this base material can be transparent resin material, for example polyethylene terephthalate (PET), cellulose triacetate (TAC), poly-how dioctyl phthalate glycol ester (PEN), poly-propylene diester, polyimide, polyethers, polycarbonate, polyamine, tygon, polypropylene or polyvinyl alcohol (PVA), polystyrene, polymethylmethacrylate, Polyvinylchloride, epoxy resin, phenolics etc. or its equivalent.
B, in this base material one side surface, utilize physical vapour deposition (PVD) processing procedure moulding one metal level, and this physical vapour deposition (PVD) processing procedure can be sputter or evaporation coating technique, and this metal level can be made up of metallic element or metal derivative or metal oxide, for example can be aluminium or silver.
C, in the in addition side surface of this base material with respect to metal level, utilize physical vapour deposition (PVD) processing procedure or coating method moulding one multilayer reflector, and this physical vapour deposition (PVD) processing procedure can be sputter or evaporation coating technique.
D, in the in addition side surface of this metal level with respect to base material, utilize coating method moulding one diffusion layer, to finish reflector plate 2 structures shown in the 3rd embodiment among Fig. 6.
And multilayer reflector 23 upper surfaces of the various embodiments described above reflector plate further are provided with hard conating 25; shown in the 4th embodiment of Fig. 8 A; also can be provided with plural printing opacity particle 251 (particle) in this hard conating 25; make this hard conating 25 except the multilayer reflector 23 that can protect the below; also can utilize plural printing opacity particle 251 and have the function of diffusion; also can further be provided with protective seam 26 in these hard conating 25 upper surfaces; shown in the 5th embodiment of Fig. 8 B; this protective seam 26 is detachable being arranged on this hard conating 25; for example can utilize release mode to be arranged on this hard conating; when making this reflector plate buckling be processed into difformity; can prevent the stress generation and make the reflector plate distortion by this protective seam 26, then this protective seam can be removed after the moulding of overall reflective sheet.
In addition, more can further be provided with metal base and form the structure of reflecting body in the bottom of the various embodiments described above reflector plate, shown in the 6th embodiment of Fig. 9 A, this reflector plate 2 from top to bottom is in regular turn: multilayer reflector 23, metal level 22, base material 21 and diffusion layer 24, these diffusion layer 24 lower surfaces can be by adhesion layer 27 metal substrate combinings 28, perhaps shown in the 7th embodiment of Fig. 9 B, this reflector plate 2 from top to bottom is in regular turn: multilayer reflector 23, metal level 22, diffusion layer 24 and base material 21, these base material 21 lower surfaces can be by adhesion layer 27 metal substrate combinings 28, and these multilayer reflector 23 upper surfaces also can be provided with hard conating 25, also or shown in the 8th embodiment of Fig. 9 C, this reflector plate 2 from top to bottom is in regular turn: multilayer reflector 23, base material 21, metal level 22 and diffusion layer 24, these diffusion layer 24 lower surfaces can be by adhesion layer 27 metal substrate combinings 28, wherein in the various embodiments described above, combine stress greater than 0.1kN/m between the bottom of this reflector plate (base material or diffusion layer) and metal base
2
The overall reflective sheet is because of being provided with metal level and multilayer reflector, this multilayer reflector is provided with more than two layers (at most can to 50 layers) different reflection horizon of refractive index, make light by the time light can be carried out repeatedly reflection, and the two piece patent cases mentioned with above-mentioned prior art compare, this patent case only has the different reflection horizon of two-layer refractive index, what its reflectivity increased is limited in scope, and the present invention utilizes more than two layers the effect of (at most can to 50 layers) mutual storehouse of reflection multilayer layer, this light can (be had in about 380～780nm) outside the preferable reflectivity (can reach 95～98%) in the wavelength coverage of broadness, make simultaneously the light of reflection form Brewster angle (Brewster ' s angle) easily, can increase the polarization of light light source to improve the light briliancy, and more can further utilize the printing opacity particle (particle) that is had in this diffusion layer or the hard conating, further light is formed reflection again, also can make the light that passes through reach the effect of light diffusion simultaneously.
In addition, reflector plate of the present invention can be applicable to the preferably of liquid crystal indicator, and is the preferably applicable to the side light type planar light source device of the planar light source device (being also referred to as back lighting device) of LCD TV and mobile computer etc.More specifically, can be used as reflecting body use under lamp reflector or the light guide plate.Be depicted as the lamp reflector embodiment that reflector plate of the present invention is applied to as Figure 10 A.This lamp reflector 3, be configured as the shape person that the light source 31 with fluorescent lamp etc. covers with the reflector plate of the present invention 2 of sheet, this reflector plate 2 can form arc shape as shown in the figure certainly, can also be the ㄈ shape, shown in Figure 10 B, perhaps be processed into other required external form.
Also reflector plate of the present invention can be installed in the back lighting device of straight-down negative or side-light type, shown in Figure 11 A, be reflector plate of the present invention and be installed in the basic structure synoptic diagram of side-light type back lighting device, it mainly is provided with light supply apparatus 42 and plural blooming piece in a carrier 41, this plural number blooming piece can be made of reflector plate 2 and light guide plate 43 at least, and the plate end of this light guide plate 43 is set in the opening part of carrier 41, its light supply apparatus 42 also is arranged at the side of carrier 41, in light guide plate 43 belows reflector plate 2 is set, to allow the light of light supply apparatus 42 go into light guide plate 43 and penetrate, to reach the effect that light source shows towards the plate face of light guide plate 43 expection from the plate end-fire; Certainly, light guide plate also can be arranged at the light supply apparatus top, and reflector plate is located between carrier and the light supply apparatus, to form direct type backlight module; But and this reflector plate 2 also one be bent into the external form of carrier, shown in Figure 11 B.
Shown in Figure 12 A, be reflector plate of the present invention and be installed in the basic structure synoptic diagram of downward back electro-optical device, it mainly is provided with light supply apparatus 42 and blooming piece above a carrier 41, this blooming piece can be made of reflector plate 2 and diffuser plate 44, and this diffuser plate 44 is arranged at light supply apparatus 42 tops, 2 of its reflector plates be located at carrier 41 and light supply apparatus 42 between, to allow the light of light supply apparatus 42 inject diffuser plate 44 and penetrate, to reach the effect that light source shows towards the plate face of diffuser plate 44 expections; But and this reflector plate 2 also one be bent into the external form of carrier, shown in Figure 12 B.
In addition, also applicable to the lamp reflector of type display device under LED-backlit, projection TV, headlight and PDA or the mobile phone etc.Again, because the reflectivity height, so can be used as the condensing body material use of solar cell.In addition, also can be used in and require pay attention to light weight, the strobe of resistance to impact (strobe), signal display, auto lamp, fluorescent lamp, electric torch, with require high-grade fine arts illumination with reverberator and curved mirror, back mirror.
Technology contents of the present invention and technical characterstic the sixth of the twelve Earthly Branches disclose as above, yet the personage who is familiar with this technology still may do various replacement and the modifications that do not deviate from this case invention spirit based on announcement of the present invention.Therefore, protection scope of the present invention should be not limited to those disclosed embodiments, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by following claim.
Claims (13)
1, a kind of reflector plate, this reflector plate includes at least:
One base material, this base material are transparent resin material;
One metal level;
One multilayer reflector, this multilayer reflector is included in regular turn by the metal level top: first reflection horizon, second reflection horizon～N reflection horizon, wherein N is less than or equal to 50, and the refractive index in this first reflection horizon is less than second reflection horizon, and between upper and lower adjacent reflection horizon refractive index difference greater than 0.4;
One diffusion layer.
2, reflector plate according to claim 1, wherein, this metal level is located at the upper surface of base material, and this multilayer reflector then is located at the upper surface of metal level, and diffusion layer is located at the lower surface of base material.
3, reflector plate according to claim 1, wherein, this multilayer reflector is located at the upper surface of base material, and this metal level then is located at the lower surface of base material, and this diffusion layer then is located at the lower surface of metal level.
4, reflector plate according to claim 1, wherein, this diffusion layer is located at the upper surface of base material, and this metal level then is located at the upper surface of diffusion layer, and this multilayer reflector then is located at the upper surface of metal level.
5, as reflector plate as described in claim 2 or 3 or 4, wherein in the reflector plate below further combined with a metal base is arranged.
6, as reflector plate as described in the claim 5, wherein between this reflector plate and metal base, further be provided with adhesion layer.
7, as reflector plate as described in the claim 5, wherein this multilayer reflector upper surface further is provided with hard conating.
8, as reflector plate as described in the claim 7, wherein be provided with plural printing opacity particle in this hard conating.
9,, wherein combine stress greater than 0.1kN/m between this reflector plate and metal base as reflector plate as described in the claim 5
2
10, as reflector plate as described in the claim 1,2,3 or 4, wherein this diffusion layer includes macromolecule resin and diffusion particle, perhaps can be white or light tight macromolecule resin.
11, as reflector plate as described in the claim 10, wherein this diffusion particle can be whiteness or its potpourri of titania, barium sulphate, lime carbonate.
12, as reflector plate as described in the claim 1,2,3 or 4, wherein this metal level or multilayer reflector can utilize the moulding of physical vapour deposition (PVD) processing procedure, and wherein this physical vapour deposition (PVD) processing procedure can be sputter or evaporation coating technique.
13, as reflector plate as described in the claim 1,2,3 or 4, wherein this multilayer reflector or diffusion layer can utilize the coating method moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101876997A CN101441285A (en) | 2007-11-22 | 2007-11-22 | Reflection sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101876997A CN101441285A (en) | 2007-11-22 | 2007-11-22 | Reflection sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101441285A true CN101441285A (en) | 2009-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101876997A Pending CN101441285A (en) | 2007-11-22 | 2007-11-22 | Reflection sheet |
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| Country | Link |
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| CN (1) | CN101441285A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477250A (en) * | 2010-11-26 | 2012-05-30 | 力科有限公司 | Reflecting coating component and reflector plate using same |
| CN103943643A (en) * | 2014-04-25 | 2014-07-23 | 武汉新芯集成电路制造有限公司 | Multi-layer piled metal shading thin film and preparation method thereof |
| CN104169749A (en) * | 2012-02-13 | 2014-11-26 | 东丽株式会社 | Reflective film |
| CN107132600A (en) * | 2017-06-27 | 2017-09-05 | 宁波长阳科技股份有限公司 | A kind of extrusion type diffusion barrier and preparation method thereof |
| CN108954053A (en) * | 2017-05-22 | 2018-12-07 | 南昌欧菲显示科技有限公司 | Backlight module, display device and terminal |
-
2007
- 2007-11-22 CN CNA2007101876997A patent/CN101441285A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477250A (en) * | 2010-11-26 | 2012-05-30 | 力科有限公司 | Reflecting coating component and reflector plate using same |
| CN104169749A (en) * | 2012-02-13 | 2014-11-26 | 东丽株式会社 | Reflective film |
| CN104169749B (en) * | 2012-02-13 | 2017-04-12 | 东丽株式会社 | Reflective film |
| CN103943643A (en) * | 2014-04-25 | 2014-07-23 | 武汉新芯集成电路制造有限公司 | Multi-layer piled metal shading thin film and preparation method thereof |
| CN103943643B (en) * | 2014-04-25 | 2017-03-15 | 武汉新芯集成电路制造有限公司 | Metal shading film that a kind of multilamellar is piled up and preparation method thereof |
| CN108954053A (en) * | 2017-05-22 | 2018-12-07 | 南昌欧菲显示科技有限公司 | Backlight module, display device and terminal |
| CN107132600A (en) * | 2017-06-27 | 2017-09-05 | 宁波长阳科技股份有限公司 | A kind of extrusion type diffusion barrier and preparation method thereof |
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Open date: 20090527 |