CN101498859A - Multifunctional optical thin slab and manufacturing method thereof - Google Patents
Multifunctional optical thin slab and manufacturing method thereof Download PDFInfo
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- CN101498859A CN101498859A CNA2008100066412A CN200810006641A CN101498859A CN 101498859 A CN101498859 A CN 101498859A CN A2008100066412 A CNA2008100066412 A CN A2008100066412A CN 200810006641 A CN200810006641 A CN 200810006641A CN 101498859 A CN101498859 A CN 101498859A
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Abstract
The present invention discloses a multifunctional optical thin plate and a manufacturing method thereof. Wherein, a preset substrate is respectively provided with a light input face for receiving light and a light output face for reflecting light in the surface; agglutinant is smeared in the light input face and the light output face of the substrate to form a coating layer; tridimensional patterns in a metal or nonmetal forming die are reprinted and copied to the substrate surface by means of rolling or pressing; meanwhile irradiation devices of ultraviolet or other light are employed to irradiate the coating layer, or the coating layer is dried, solidified and molded quickly by means of heating and pressing in heating and pressing devices; the forming die is removed after the coating layer is solidified or vice verse; and then an optical thin plate is produced.
Description
Technical field
A kind of multifunctional optical thin slab and manufacture method thereof have been the present invention relates to, belong to electronic apparatus, computing machine, information and communication field, belong to specifically and relate to the technical field that backlight backlight module display mode is provided in electronic apparatus, computing machine, information and the communication field.
Background technology
Backlight module (Backlight module) is the module that general reference can provide electronic product back side light source, mainly be used in various information at present, on communication and the consumer products, as: LCD, negative film scanner, lantern slide viewbox and advertising lamp box etc., and the traditional lighting light fixture of can arranging in pairs or groups, equipment uses, and make that the light in more weak zone can be more sufficient, yet, because the liquid crystal itself in the panel of LCD is not had a characteristics of luminescence, therefore for reaching display effect, must supply with panel of LCD has a backlight module, and its function is to provide the area source that briliancy is abundant and be evenly distributed to panel of LCD.
And the composition of general employed backlight modular structure, mainly by light source, light guide plate, the reflecting type polarizing plate, diffuser plate, and layers of prisms etc., wherein each light source can be the vertical bar formula, the fluorescent tube of U type or other continuous bending shape, and with the light-guide plate guides incident light through light guide plate scattering and reflection and convert area source to, be the briliancy homogenising distribution more that makes this area source, usually be provided with diffuser plate in light guide plate exiting surface one side, and the light that the display effect of panel of LCD is promptly shed by each light source forms diffusion, use improvement and produce because of dull thread at the position at interval, then can on Liquid Crystal Module, form bright over against each light source, the phenomenon in blanking bar district.
From the above, because diffuser plate system is made up of a substrate, and in substrate, contain a plurality of diffusion particles, each diffusion particle is for interspersing among in the substrate, so the energy refracted ray is to produce the effect of diffusion, and substrate is by polycarbonate (PC), acryl or polymethyl methacrylate (PMMA) material is made, it has incidence surface and exiting surface, and make and be formed with certain thickness between incidence surface and the exiting surface, and during the diffusion particle in light passes through this substrate, then generation is had the refraction effect of suitable angle, its diffuser plate thickness is higher, make material cost improve relatively, and assembling process complexity, expend man-hour and human cost, and because the existence of diffuser plate can produce optical loss between light guide plate and layers of prisms, to cause briliancy to reduce, influence whole optical property.
Secondly, in order to solve the disappearance of above-mentioned diffuser plate, just there is the dealer of manufacturer to develop the light guide plate of this kind tool diffusion function, utilize the particulate rubbing method that diffusion particle is attached to the exiting surface on the substrate with adhesive (as: UV glue or resin), use the formation optical scattering structure, make light source reach the purpose of light source homogenising via the scattering of diffusion particle, and the exiting surface of this optical scattering structure and substrate forms one, its optical loss is decreased, and can save diffuser plate thereby cost also is minimized; In addition, also can use material to carry out screen painting, or the mode that directly sees through ejection formation produces the diffusion point, make light refraction go out substrate surface with the total reflection that destroys light with light diffusion, utilize the density or the size of point again, can reach initially homogenized effect; The mode that also can use grinding is one-body molded on the exiting surface of substrate a diffusion layer, on making, and grinds the exiting surface of substrate and forms diffusion layer by abrasive material and grindstone; Perhaps, the light guide plate that can utilize the mechanical stamping mode to make combined type replaces the optical module of additionally setting up, as: optical film sheet or prismatic lens etc., be pressed with space pattern and prolong in substrate surface, as: triangle, square, semicircle or rhombus etc., system will delineate in advance in the space pattern that prolongs on the pressing roller, mode with impression is transferred on the surface, can cooperate arrangement, the adjustment of light source, and have the effectiveness of focusing, astigmatism or polarisation, and effectively reduce the use of optical module and to the absorption of light source; Moreover, also can select to see through strong acid or highly basic material and carry out the wet etching processing procedure, lie in substrate surface coating photoresist layer, adopt light shield to the photoresist layer exposure, developing forms the photoresistance pattern, and behind wet etching the exiting surface of its substrate, then can be formed with diffusion layer.
But the shortcoming of the above particulate rubbing method is factors such as gravity or static, make that diffusion particle can't be evenly distributed in the adhesive (as: UV glue or resin) in the diffusion barrier, so that the light diffusion effect of made diffusion layer is bad, and the particulate rubbing method needs careful intricately to select the distribution of particle size, use the degree of control light diffusion, and this kind adds the practice of diffusion particle, can reduce its light service efficiency because of absorbing light source also; Yet, use screen painting system to utilize the mould that has space pattern on the roller, imprinting moulding on the roll extrusion substrate surface after being stained with the viscose mixture, be easy to generate the uneven situation of printing when causing printing, and if will need other die sinking, cost to be taken the not corner of the eyes, also can cause and short and disappearances such as volumetric contraction that cooling curing has, distortion with injection molding method; In addition, grind mode with mechanical stamping, then need directly or through after warming deliquescing carry out machining again on the exiting surface of substrate, use and finish diffusion layer, but, be easy to produce defectiveness because of in the various machining processing procedures, and the structural strength of damage or reduction substrate, so substrate must have certain thickness, just be enough to strengthen unitary construction, make material and the cost of making effectively to reduce; Again, adopt the wet etching mode to make the substrate surface pattern, can be wayward because of the directivity of carrying out chemical etching in substrate surface, and the degree of accuracy that causes the substrate surface pattern is not high, resolution is also not good, the time consumption of its making is long and cost of equipment is high, and then cause the degree of difficulty processed on the processing procedure to increase, and quality and yield can't promote effectively.
Be with, how to solve above-mentioned problem of commonly using and disappearance, be the relevant manufacturer that is engaged in the industry and desire most ardently the direction place person that research improves.
Summary of the invention
The invention provides a kind of multifunctional optical thin slab and manufacture method thereof, he makes after the anaclasis or diffraction of light via space pattern on the optical texture film that substrate casts out, can and condense light with equalizing light rays and produce the uniform area light source of upwards concentrating, with effective reduction optical loss, improve the luminous energy service efficiency, increase the effective brightness of light emitting source, and can reach the elimination bright band that light emitting source generated and the effect of shade.
Fundamental purpose of the present invention is to be formed with coating layer with adhesive (as: UV glue or resin) coating on the incidence surface of this substrate or the exiting surface, and by the mould of metal material with space pattern or non-metallic material, mode with compacting or rolling is transferred on the substrate surface, carry out duplicating of space pattern shape, utilize ultraviolet simultaneously or be not limited to the ultraviolet illumination injection device and shone coating layer, or see through heating or pressurized equipment heats, make its rapid draing, curing molding, and behind the layer curing molding to be coated, again mould is removed, or after mould removes, make coating layer give curing molding, can produce the finished product of this optical sheet.
Secondary objective of the present invention is that this optical texture film mainly can diffuse out the exiting surface of light by substrate uniformly, after making light that substrate casts out via space pattern anaclasis effect on the optical texture film, can and condense light with equalizing light rays and produce the uniform area light source of upwards concentrating, in order to reduce or to replace the use of additionally setting up optical module and to the absorption of light source, and can effectively reduce optical loss, improve the light service efficiency by this, increase the briliancy of backlight module, and can reach the elimination bright band that light source generated and the effect of shade.
Another object of the present invention is that to be that this substrate and optical texture film material can be two materials identical or inequality made, has different medium in the time that light penetration can being supplied, and make its anaclasis reaction, polarizing coefficient effect also inequality, and the structural change that can utilize the optical texture film strengthens the effect of anaclasis, also do not need to set up other optical module again.
A further object of the present invention is the design that is this optical texture film surface space pattern, system can make in a large number according to actual conditions, and can cooperate outgoing scattering of light situation, briliancy demand, and the position of light source configuration, in addition the modularized elastic manufacturing is used, so, just can have the function of diffusion, optically focused or polarisation, in order to do purpose that can reach the different optical performance and effectiveness.
For the technical scheme of achieve the above object multifunctional optical thin slab of the present invention and manufacture method thereof as described below:
A kind of manufacture method of multifunctional optical thin slab comprises that substrate and optical texture film form implementation step:
(A) at default substrate surface, be respectively equipped with at least one or more than one in order to the incidence surface that receives light and the exiting surface of refracted ray;
(B) adhesive is coated on the incidence surface or exiting surface of substrate, be formed with coating layer;
(C) by mould with space pattern, be transferred on the substrate surface with compacting or rolling mode, carry out duplicating of space pattern shape;
(D) utilize ultraviolet UV irradiation unit, shone coating layer, or seeing through firing equipment heats, and makes its rapid draing, curing molding that the optical texture film be arranged;
(E) behind the layer curing molding to be coated, again mould is removed, or after mould removes, make coating layer give curing molding, can produce the finished product of optical sheet.
The substrate that it is characterized in that this step (A) can be the made material with printing opacity, semi-transparent or local printing opacity of glass, plastics, rubber, polyalkenes compound, polyesters compound or organic polymer.
It is made that this substrate can be materials such as polymetylmethacrylate, polycarbonate, polythene PE, methyl methacrylate one styrol copolymer MS, poly terephthalic acid ethane diacid ester PET, Triafol T TAC, polystyrene PS, cyclenes copolymer COC or cyclic olefin polymer COP.
The adhesive of this step (B) is coated the mode of substrate surface, and is rotary for utilizing, soak processing coating methods such as glutinous formula, drum-type, scraper type, jet printing type or squash type and be formed with coating layer.
The adhesive of this step (B) can be ultraviolet photo-curing materials such as ultraviolet photo-curing gum resin UVCure Resin, ultraviolet photo-curing glue UV glue, or thermosetting material, polymkeric substance, resin etc. have the curable polymeric fluid material of optical property.
This step (C) mould can be metal material or non-metallic material is made, and space pattern thereon can be triangle, square, semicircle or rhombus etc., and section morphology can be space patterns such as wavy, zigzag, the square shaped teeth of symmetrical or asymmetric, rule or irregular alignment be wavy.
Optical sheet behind this step (E) institute curing molding can further be installed to arrange in pairs or groups and use in lighting, equipment, with the light that substrate was projected, is the area source of single sensing and perpendicular projection.
The thickness of structure scope is between 0.1mm～5mm behind this substrate and the optical texture film integral curing molding.
This adhesive can be ultraviolet photo-curing materials such as ultraviolet photo-curing gum resin UV Cure Resin, ultraviolet photo-curing glue UV glue, or thermosetting material, polymkeric substance, resin etc. have the curable polymeric fluid material of optical property.
A kind of multifunctional optical thin slab structure comprises that substrate and optical texture film form, wherein:
This substrate surface is respectively equipped with one or more in order to the incidence surface of reception light and the exiting surface of refracted ray;
This optical texture film utilizes the adhesive coating, and cooperates mould with the transfer printing space pattern, and curing molding is on substrate surface.
This substrate can be the made material with printing opacity, semi-transparent or local printing opacity of glass, plastics, rubber, polyalkenes compound, polyesters compound or organic polymer.
It is made that this substrate can be materials such as polymetylmethacrylate, polycarbonate, polythene PE, methyl methacrylate one styrol copolymer MS, poly terephthalic acid ethane diacid ester PET, Triafol T TAC, polystyrene PS, cyclenes copolymer COC or cyclic olefin polymer COP.
This adhesive can be ultraviolet photo-curing materials such as ultraviolet photo-curing gum resin UV Cure Resin, ultraviolet photo-curing glue UV glue, also or curable polymeric fluid material with optical property such as thermosetting material, polymkeric substance, resin.
Space pattern on this optical texture film can be triangle, square, semicircle or rhombus, and section morphology can be space patterns such as wavy, zigzag, the square shaped teeth of symmetrical or asymmetric, rule or irregular alignment be wavy.
The optical sheet that this substrate and optical texture film are formed uses in lighting, equipment for can further installing to arrange in pairs or groups, and with the light that substrate was projected, is the area source of single sensing and perpendicular projection.
The thickness range of this substrate and optical texture film integral is between 0.1mm～5mm.
Multifunctional optical thin slab of the present invention and manufacture method thereof have following advantage:
1, the present invention coats on the substrate surface for utilizing adhesive, be formed with coating layer, and by the space pattern of delineating in advance on mould, be transferred on the substrate surface with pressing mode, carry out duplicating of space pattern shape, utilize the ultraviolet illumination injection device to be shone coating layer simultaneously, make its rapid draing, curing molding, can produce the structure of optical sheet after again mould being removed.
2, the light that substrate cast out via space pattern anaclasis effect on the optical texture film after, can externally carry out scattering and reflection and convert area source to, and the briliancy that can make this area source more homogenising distribute, in order to reducing or to replace the use of additionally setting up optical module (as: convex lens, concavees lens or prismatic lens) and, and can effectively reduce optical loss to the absorption of light source.
3, to can be two materials identical or inequality made for substrate and the material of optical texture film, has different media in the time that light penetration can being supplied, and make its anaclasis reaction, polarizing coefficient effect also inequality, and the structural change that can utilize the optical texture film strengthens the effect of anaclasis and diffraction, also do not need to set up other optical module again.
4, the design of optical texture film surface space pattern, can make in a large number according to actual conditions, and can cooperate outgoing scattering of light situation, briliancy demand, and the position of light source configuration, in addition the modularized elastic manufacturing is used, so, just can have the function of diffusion, optically focused or polarisation, in order to do purpose that can reach the different optical performance and effectiveness.
5, the structure of optical texture film need not added any diffusion particle, can with light that substrate cast out via space pattern anaclasis effect on the optical texture film after, can condense light and produce the uniform area light source of upwards concentrating, improve the light service efficiency by this, increase the briliancy of backlight module, and can reach elimination bright band and hatching effect that light source generated.
6, the optical texture film by mould with pressing mode, utilize the ultraviolet illumination injection device to be shone coating layer simultaneously, make produced structure behind its curing molding, can't cause printing inhomogeneous just like screen painting, or with injection molding method, and need other die sinking, cost to take the not corner of the eyes, and have because of short, disappearances such as cooling curing has caused volumetric contraction, distortion.
7, in manufacture process, also do not need in the mode of grinding with mechanical stamping, with on the exiting surface of substrate directly or seeing through to warm carries out machining again after the deliquescing and finish diffusion layer, can avoid damage or reduce the original structural strength of substrate, and the optical sheet structural thickness after this moulding is thinner, the demand that not only can meet slimming, and then the cost that also can reduce material relatively and make.
8, compared to adopting the wet etching mode to make the substrate surface pattern, can cause disappearance and problem because of the wayward institute of the directivity of carrying out chemical etching in substrate surface, space pattern on the optical texture film of the present invention has the also good advantage of degree of accuracy height, resolution, and in the time of can simplifying operation steps when using, shortening worker, and reduce the process apparatus use cost, and then can effectively promote output quality and yield.
9, the optical texture film can be single or sandwich construction, also can be directly in substrate one side incidence surface or exiting surface, or form pattern optical modules such as convex lens, concavees lens or prism respectively in the incidence surface and the exiting surface of substrate both sides, also can in the multiple tracks homonymy or not homonymy all can make the optical texture film of different types.
Description of drawings
Fig. 1 is the stereo appearance figure of optical sheet structure of the present invention.
Fig. 2 is an optical sheet manufacture method process flow diagram of the present invention.
Fig. 3 is the processing and manufacturing process flow diagram () of optical sheet of the present invention.
Fig. 4 is the processing and manufacturing process flow diagram (two) of optical sheet of the present invention.
Fig. 5 is the schematic side view () of optical sheet preferred embodiment of the present invention.
Fig. 6 is the schematic side view (two) of optical sheet preferred embodiment of the present invention.
Fig. 7 is the schematic side view (three) of optical sheet preferred embodiment of the present invention.
The main element symbol description
1 substrate
11 incidence surfaces, 12 exiting surfaces
2 optical texture films
21 space patterns
3 moulds
31 space patterns
Embodiment
For reaching above-mentioned purpose and effect, the technology used in the present invention means and structure thereof, drawing now illustrates in detail that with regard to preferred embodiment of the present invention its feature and function are as follows, understand fully in order to do profit.
See also shown in Figure 1ly, be the stereo appearance figure of optical sheet structure of the present invention, find out by knowing shown in the figure, multifunctional optical thin slab of the present invention and manufacture method thereof are to include substrate 1 and optical texture film 2 is formed, wherein:
This substrate 1 can be glass, plastics, rubber, the polyalkenes compound, polyesters compound or organic polymer be made to have printing opacity, the material of semi-transparent or local printing opacity, and substrate 1 also can be polymethylmethacrylate (Polymethyl methacrylate, PMMA), polycarbonate (Polycarbonate, PC), tygon (Polyethylene, PE), methyl methacrylate one styrol copolymer (Methylmethacrylate-styrene copolymer, MS), poly terephthalic acid ethane diacid ester (Polyethylene terephthalate, PET), Triafol T (Triacetyl cellulose, TAC), polystyrene (Polystyrene, PS), cyclenes copolymer (Cyclo olefin copolymer, COC) or cyclic olefin polymer (Cyclo olefin polymer, COP) etc. material is made, and is formed with one or more respectively in substrate 1 surface in order to the incidence surface 11 that receives light and the exiting surface 12 of refracted ray.
This optical texture film 2 can be arranged at substrate 1 one side incidence surfaces 11 earlier, and then is arranged on other the side exiting surface 12; Perhaps, also can be arranged at substrate 1 one side exiting surfaces 12 earlier after, be arranged at again on other the side incidence surface 11; In addition, also can be carried out the processing and manufacturing flow process of optical texture film 2 at both sides incidence surface 11 and exiting surface 12 simultaneously, and the thickness of structure scope is between 0.1mm～5mm after making substrate 1 and optical texture film 2 integral solidifyings, and optical texture film 2 can be the structure with different space patterns 21, as: triangle, square, semicircle or rhombus etc., only the aforementioned structure shape only is the preferred embodiment of this creation, non-so promptly limit to the claim of this creation, and the simple and easy modification and the equivalent structure that use this creation instructions and graphic content to do such as change, all should in like manner be contained in the claim of this creation, but be not limited to shape described above, and make its section morphology can be symmetry or asymmetric, rule or irregular alignment wavy, zigzag, the wavy space pattern 21 that waits of square shaped teeth (is please consulted Fig. 5 simultaneously, Fig. 6, shown in Figure 7), then can be for incidence surface 11 incidents of light that light source sent from substrate 1, after the anaclasis effect via optical texture film 2, exiting surface 12 in substrate 1 externally carries out scattering and reflection and converts area source to again, and can make the briliancy homogenising distribution more of this area source.
See also Fig. 2, Fig. 3, shown in Figure 4, be the processing and manufacturing process flow diagram () and the processing and manufacturing process flow diagram (two) of optical sheet manufacture method process flow diagram of the present invention, optical sheet, find out by knowing shown in the figure, when multifunctional optical thin slab that utilizes the present invention to make and method thereof, be to carry out according to following implementation step:
Step (101) is on default substrate 1 surface, can be respectively equipped with at least one or more than one in order to the incidence surface 11 that receives light and the exiting surface 12 of refracted ray.
Step (102) is coated adhesive on the incidence surface 11 or exiting surface 12 of substrate 1, and is rotary for utilizing, soak processing such as glutinous formula, scraper type, drum-type, jet printing type or squash type coating methods, is formed with coating layer; And this adhesive can be the ultraviolet photo-curing material or the thermosetting material of paste or filminess.
Step (103) is by the mould 3 of metal material with space pattern 31 or non-metallic material, is transferred on substrate 1 surface in the mode of compacting or rolling, carries out duplicating of space pattern 31 shapes.
Step (104) is utilized ultraviolet (UV) irradiation unit, is shone coating layer, or seeing through firing equipment heats, and makes its rapid draing, curing molding that optical texture film 2 be arranged.
Behind step (105) the layer to be coated curing molding, again mould 3 is removed, or after mould 3 removes, make coating layer give curing molding, can produce the finished product of optical sheet 2.
And utilize the resulting optical sheet structure of this manufacture method, after light source produces light, its light can be injected in the substrate 1 by incidence surface 11, the optical texture film 2 that sees through again on the exiting surface 12 penetrates, and this optical texture film 2 mainly is that light is diffused out uniformly by substrate 1 other side exiting surface 12, after making light that substrate 1 cast out via the 21 anaclasis effects of space pattern on the optical texture film 2, can and condense light with equalizing light rays and produce the uniform area light source of upwards concentrating, in order to reduce or to replace the use of additionally setting up optical module (as: optical film sheet or prismatic lens) and to the absorption of light source, and can effectively reduce optical loss, improve the light service efficiency by this, increase the effective brightness of light emitting source, and can reach the elimination bright band that light source generated and the effect of shade, and the optical sheet structural thickness after this moulding is thinner, the demand that not only can meet slimming, and then the cost that also can reduce material relatively and make.
Secondly, to carry out the usefulness of anaclasis polarisation that effect is caused with single medium limited compared to only commonly using, it is made that substrate 1 of the present invention and optical texture film 2 materials can be two materials identical or inequality, has different medium in the time that light penetration can being supplied, and its anaclasis is reacted, the polarizing coefficient effect is also inequality, and the effect of anaclasis is strengthened in the structural change that can utilize optical texture film 2, also do not need to set up again other optical module, because the design department of space pattern 21 can be made in a large number according to actual conditions, and can cooperate outgoing scattering of light situation, the briliancy demand, and the position of light source configuration, in addition the modularized elastic manufacturing is used, so, just can have diffusion, the function of optically focused or polarisation, in order to do purpose that can reach the different optical performance and effectiveness, and make the space pattern 21 on the optical texture film 2 have the degree of accuracy height, the advantage that resolution is also good, and can simplify the operation steps when using, when shortening worker, and reduce the cost that process apparatus uses, and then can effectively promote the quality and the yield of output.
On the other hand, above-mentioned adhesive (as: UV glue or resin) is can coat substrate 1 surface to be formed with coating layer, and shone by the ultraviolet illumination injection device, or seeing through firing equipment heats, and the space pattern 31 of cooperation mould 3 is in the mode of transfer printing, photocurable or heat curing form the structure of optical sheet, and this optical sheet can be and has single or multilayered optical structures film 2, also can be directly in substrate 1 one side incidence surfaces 11 or exiting surface 12, or form convex lens respectively with exiting surface 12 in the incidence surface 11 of substrate 1 both sides, the optical module of pattern such as concavees lens or prismatic lens, also can in the multiple tracks homonymy or not homonymy all can make the optical texture film 2 of different types.
Again, its adhesive is coated substrate 1 lip-deep mode, rotary except utilizing, soak glutinous formula, scraper type, drum-type, beyond processing such as jet printing type or the squash type coating method, also can be formed with coating layer by modes such as sputter or printings, and the present invention mainly is example with using of coating method of processing, but when practical application, then be not to be to exceed with the processing coating method, and this adhesive also can be the ultraviolet photo-curing material, as: ultraviolet photo-curing gum resin (UV Cure Resin) and ultraviolet photo-curing glue (UV glue) or thermosetting material, polymkeric substance, resins etc. have the curable polymeric fluid material of optical property, so can reach the method for aforementioned effect such as, step, flow process is contained by the present invention all should, simple and easy modification of this kind and equivalent structure change, all should in like manner be contained in the claim of the present invention, close and give Chen Ming.
Moreover, optical sheet structure of the present invention is arranged in pairs or groups in the traditional lighting light fixture for can further directly installing, equipment uses, as: daylight lamp holder, lamp stand, projecting lamp, automobile-used lamp socket or traffic lights etc., only this is partly because of non-emphasis of the present invention place, so only one underdraw in this manual, for understanding, be that light is diffused out uniformly by substrate 1 exiting surface 12, in order to solve the traditional lighting light fixture, the light of equipment is the diffusion type irradiation, can reach the light that substrate 1 is projected, area source for single sensing and perpendicular projection, and the time can not produce the situation of dazzle and multi shadow in irradiation, and light source can be plural light emitting diode, bulb, fluorescent tube or the various luminescence component that can externally show light, then can allocate required color and briliancy by this, so the simple and easy modification and the equivalent structure that use instructions of the present invention and graphic content to do such as change, and all should in like manner be contained in the claim of the present invention, close and give Chen Ming.
Multifunctional optical thin slab of the invention described above and manufacture method thereof are when reality is used, and cording has following advantage, as:
1, the present invention coats on substrate 1 surface for utilizing adhesive, be formed with coating layer, and by the space pattern of delineating in advance on mould 3 31, be transferred on substrate 1 surface with pressing mode, carry out duplicating of space pattern 31 shapes, utilize the ultraviolet illumination injection device to be shone coating layer simultaneously, make its rapid draing, curing molding, can produce the structure of optical sheet after again mould 3 being removed.
2, from the above, the light that substrate 1 is cast out via the 21 anaclasis effects of space pattern on the optical texture film 2 after, can externally carry out scattering and reflection and convert area source to, and the briliancy that can make this area source more homogenising distribute, in order to reducing or to replace the use of additionally setting up optical module (as: convex lens, concavees lens or prismatic lens) and, and can effectively reduce optical loss to the absorption of light source.
3, secondly, it is made that substrate 1 and the material of optical texture film 2 can be two materials identical or inequality, has different media in the time that light penetration can being supplied, and make its anaclasis reaction, polarizing coefficient effect also inequality, and the structural change that can utilize optical texture film 2 strengthens the effect of anaclasis and diffraction, also do not need to set up other optical module again.
4, the design of optical texture film 2 surface three-dimensional patterns 21, system can make in a large number according to actual conditions, and can cooperate outgoing scattering of light situation, briliancy demand, and the position of light source configuration, in addition the modularized elastic manufacturing is used, so, just can have the function of diffusion, optically focused or polarisation, in order to do purpose that can reach the different optical performance and effectiveness.
5 and the structure of optical texture film 2 need not added any diffusion particle, the light that substrate 1 can be cast out via the 21 anaclasis effects of space pattern on the optical texture film 2 after, can condense light and produce the uniform area light source of upwards concentrating, improve the light service efficiency by this, increase the briliancy of backlight module, and can reach elimination bright band and hatching effect that light source generated.
6, in addition, optical texture film 2 is with pressing mode by mould 3, utilize the ultraviolet illumination injection device to be shone coating layer simultaneously, make produced structure behind its curing molding, can't cause printing inhomogeneous just like screen painting, or with injection molding method, and need other die sinking, cost to take the not corner of the eyes, and have because of short, disappearances such as cooling curing has caused volumetric contraction, distortion.
7, on the other hand, in manufacture process, also do not need in the mode of grinding with mechanical stamping, with on the exiting surface 12 of substrate 1 directly or seeing through to warm carries out machining again after the deliquescing and finish diffusion layer, can avoid damage or reduce substrate 1 original structural strength, and the optical sheet structural thickness after this moulding is thinner, not only can meet the demand of slimming, and then the cost that also can reduce material relatively and make.
8, again, make the substrate surface pattern compared to adopting the wet etching mode, can cause disappearance and problem because of the wayward institute of the directivity of carrying out chemical etching in substrate surface, space pattern 21 on the optical texture film 2 of the present invention has the also good advantage of degree of accuracy height, resolution, and in the time of can simplifying operation steps when using, shortening worker, and reduce the process apparatus use cost, and then can effectively promote output quality and yield.
9 moreover, optical texture film 2 can be single or sandwich construction, also can be directly in substrate 1 one side incidence surfaces 11 or exiting surface 12, or form pattern optical modules such as convex lens, concavees lens or prism in the incidence surface 11 of substrate 1 both sides respectively with exiting surface 12, also can in the multiple tracks homonymy or not homonymy all can make the optical texture film 2 of different types.
Above-mentioned detailed description is at a kind of preferable possible embodiments explanation of the present invention, only this embodiment is not in order to limit claim of the present invention, all other do not break away from the equalization finished under the disclosed skill spirit to be changed and modifies change, all should be contained in the claim that the present invention contains.
Claims (15)
1, a kind of manufacture method of multifunctional optical thin slab comprises that substrate and optical texture film form, and it is characterized in that implementation step:
(A) at default substrate surface, be respectively equipped with at least one or more than one in order to the incidence surface that receives light and the exiting surface of refracted ray;
(B) adhesive is coated on the incidence surface or exiting surface of substrate, be formed with coating layer;
(C) by mould with space pattern, be transferred on the substrate surface with compacting or rolling mode, carry out duplicating of space pattern shape;
(D) utilize ultraviolet UV irradiation unit, shone coating layer, or seeing through firing equipment heats, and makes its rapid draing, curing molding that the optical texture film be arranged;
(E) behind the layer curing molding to be coated, again mould is removed, or after mould removes, make coating layer give curing molding, can produce the finished product of optical sheet.
2, the manufacture method of multifunctional optical thin slab as claimed in claim 1, the substrate that it is characterized in that this step (A) can be the made material with printing opacity, semi-transparent or local printing opacity of glass, plastics, rubber, polyalkenes compound, polyesters compound or organic polymer.
3, the manufacture method of multifunctional optical thin slab as claimed in claim 1, it is made to it is characterized in that this substrate can be materials such as polymetylmethacrylate, polycarbonate, polythene PE, methyl methacrylate one styrol copolymer MS, poly terephthalic acid ethane diacid ester PET, Triafol T TAC, polystyrene PS, cyclenes copolymer COC or cyclic olefin polymer COP.
4, the manufacture method of multifunctional optical thin slab as claimed in claim 1, it is characterized in that the adhesive of this step (B) coats the mode of substrate surface, rotary for utilizing, soak processing coating methods such as glutinous formula, drum-type, scraper type, jet printing type or squash type and be formed with coating layer.
5, the manufacture method of multifunctional optical thin slab as claimed in claim 1, the adhesive that it is characterized in that this step (B) can be ultraviolet photo-curing materials such as ultraviolet photo-curing gum resin UV Cure Resin, ultraviolet photo-curing glue UV glue, or thermosetting material, polymkeric substance, resin etc. have the curable polymeric fluid material of optical property.
6, the manufacture method of multifunctional optical thin slab as claimed in claim 1, it is characterized in that this step (C) mould can be metal material or non-metallic material is made, and space pattern thereon can be triangle, square, semicircle or rhombus etc., and section morphology can be space patterns such as wavy, zigzag, the square shaped teeth of symmetrical or asymmetric, rule or irregular alignment be wavy.
7, the manufacture method of multifunctional optical thin slab as claimed in claim 1, it is characterized in that optical sheet behind this step (E) institute curing molding can further be installed to arrange in pairs or groups uses in lighting, equipment, with the light that substrate was projected, be the area source of single sensing and perpendicular projection.
8, the manufacture method of multifunctional optical thin slab as claimed in claim 1 is characterized in that the thickness of structure scope is between 0.1mm～5mm behind this substrate and the optical texture film integral curing molding.
9, a kind of multifunctional optical thin slab structure comprises that substrate and optical texture film form, and it is characterized in that:
This substrate surface is respectively equipped with one or more in order to the incidence surface of reception light and the exiting surface of refracted ray;
This optical texture film utilizes the adhesive coating, and cooperates mould with the transfer printing space pattern, and curing molding is on substrate surface.
10, multifunctional optical thin slab structure as claimed in claim 9 is characterized in that this substrate can be the made material with printing opacity, semi-transparent or local printing opacity of glass, plastics, rubber, polyalkenes compound, polyesters compound or organic polymer.
11, multifunctional optical thin slab structure as claimed in claim 9, it is made to it is characterized in that this substrate can be materials such as polymetylmethacrylate, polycarbonate, polythene PE, methyl methacrylate one styrol copolymer MS, poly terephthalic acid ethane diacid ester PET, Triafol T TAC, polystyrene PS, cyclenes copolymer COC or cyclic olefin polymer COP.
12, the manufacture method of multifunctional optical thin slab as claimed in claim 1, it is characterized in that this adhesive can be ultraviolet photo-curing materials such as ultraviolet photo-curing gum resin UV Cure Resin, ultraviolet photo-curing glue UV glue, also or curable polymeric fluid material with optical property such as thermosetting material, polymkeric substance, resin.
13, multifunctional optical thin slab structure as claimed in claim 9, it is characterized in that space pattern on this optical texture film can be triangle, square, semicircle or rhombus, and section morphology can be space patterns such as wavy, zigzag, the square shaped teeth of symmetrical or asymmetric, rule or irregular alignment be wavy.
14, multifunctional optical thin slab structure as claimed in claim 9, it is characterized in that the optical sheet that this substrate and optical texture film are formed uses in lighting, equipment for can further installing to arrange in pairs or groups, with the light that substrate was projected, be the area source of single sensing and perpendicular projection.
15, multifunctional optical thin slab structure as claimed in claim 9, the thickness range that it is characterized in that this substrate and optical texture film integral is between 0.1mm～5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100066412A CN101498859A (en) | 2008-01-30 | 2008-01-30 | Multifunctional optical thin slab and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100066412A CN101498859A (en) | 2008-01-30 | 2008-01-30 | Multifunctional optical thin slab and manufacturing method thereof |
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