CN1498718A - Cutting working method of laminates and laminates and optical component and image displaying device - Google Patents
Cutting working method of laminates and laminates and optical component and image displaying device Download PDFInfo
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- CN1498718A CN1498718A CNA2003101044460A CN200310104446A CN1498718A CN 1498718 A CN1498718 A CN 1498718A CN A2003101044460 A CNA2003101044460 A CN A2003101044460A CN 200310104446 A CN200310104446 A CN 200310104446A CN 1498718 A CN1498718 A CN 1498718A
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Abstract
To provide a cutting method for a laminated sheet to have excellent accuracy and an excellent surface state when cutting and finishing a cutting surface of the laminated sheet. In this cutting method for the laminated sheet 1, the cutting surface of the laminated sheet 1 cut into a rectangular shape is cut and finished. A control system for the cutting is performed by a copying system using a copying mold 3 and a copying roller 4. Preferably, the cutting surfaces of a plurality of laminated sheets 1 are cut together in an overlapped state of the plurality of laminated sheets 1. (C)2004,JPO.
Description
Technical field
The present invention relates to a kind ofly cut stacked cutting working method of the stacked section that finishing is cut to rectangle and stacked of utilizing this method to be cut, and be mounted with image display device by this stacked optical thin film that obtains or optical element.
Background technology
With stacked (for example, form, be also referred to as laminate film sometimes) when being cut to the rectangular dimension of regulation, use and die-cutly cut off with the negative to stacked of elongate such as cutter by optical thin film layer and adhesive linkage.This stacked, under situation about using as polaroid, along single shaft to or biaxial stretching processing and when being cut to rectangular dimension, the parallel or almost parallel ground cut-out along draw direction.In this case, section produces fibrous (palpus shape) split pieces.In addition, when including adhesive linkage, the situation that the pressure when having because of cut-out causes bonding agent to overflow.Like this, because the overflowing in subsequent handling, to become quality is reduced of the generation of split pieces or bonding agent, so must remove.
Therefore, known spy opens the cut-out job operation of the anisotropic films that discloses in the clear 61-136746 communique.In this job operation, has implemented along the tensile axis with anisotropic film and to have cut off after the processing, carry out cut to cutting off the processing mouth.Thus, can carry out the operation of removing of fibrous fracture sheet etc.
Yet, in above-mentioned look-ahead technique, do not mention the good and face of tool of precision and carry out accurately machined situation in shapely.That is, stacked is cut to after the rectangle, though carry out finishing by the cutting face, this accurately machined size must precision be processed goodly.That is after cut, must finishing be the rectangle of given size.In addition, must carry out finishing in the face of tool in shapely.
Summary of the invention
The present invention makes in view of above-mentioned truth, it is a kind of when the section of stacked of cutting finishing that its purpose is to provide, stacked cutting working method can processing in the mode that becomes good precision and good surface state, and stacked of utilizing this method to be cut, and be mounted with image display device by this stacked optical thin film that obtains.
In order to solve above-mentioned problem, cutting working method of the present invention stacked, be a kind of cutting working method of stacked that finishing has been cut to stacked section of regulation shape that cuts, it is characterized in that, utilize the profiling mode to carry out the control of cut.
The application's inventors, the result that the method when carrying out cut studies intensively finds by carrying out cut in the profiling mode, can obtain good precision and good surface state situations such as (adhesive-free) overflowing.
As preferred implementation of the present invention, be set forth under the overlapping many pieces stacked state, concentrate the section of many pieces stacked of cutting.
Thus, can efficient preferably carry out cut.
Description of drawings
Fig. 1 is the figure that expression utilizes the cutting process of profiling mode.
Fig. 2 is the figure of the cutting process of representing not to be the profiling mode (wherein 1).
Fig. 3 is the figure of the cutting process of representing not to be the profiling mode (wherein 2).
Embodiment
Utilize the preferred implementation of description of drawings cutting working method of the present invention stacked.The concrete grammar of cutting process at first, is described according to Fig. 1,2,3.What Fig. 1 represented is the cutting process that utilizes the profiling mode, and Fig. 2, the 3rd represents not to be to utilize the figure of 1 example of the cutting process of profiling mode.
(cutting process)
The synoptic diagram of the formation of the cutting mechanism when Fig. 1 is the section (end face) of expression cutting lay lamination.Rotary cutter 5 as cutting mechanism is provided with 1, is provided with profiling roller 4 with one heart with this rotary cutter 5.On the other hand, stacked 1 is installed on the profiling mould 3 by suitable mechanism.Profiling mould 3 can rotate mobile along the θ direction on every side with stacked 1 axis of rotation that constitutes in regulation.
Profiling roller 4 is fixed with respect to profiling mould 3 and pushes.Pressing force can be paid by elastic devices such as springs.Profiling roller 4 does not move with the rotation center of rotary cutter 5.Therefore, pushing with respect to profiling mould 3 under the state of profiling roller 4, by making profiling mould rotation, section that can cutting lay lamination 1.Stacked 1 is rectangle, is rectangle or square.
Then, the cutting process that does not use profiling mould 3 is described.Fig. 2 possesses the example of 1 rotary cutter 2 (being equivalent to cutting mechanism) when being the section (end face) of cutting lay lamination 1.Rotary cutter 2 does not move though be driven in rotation rotation center.On the other hand, stacked 1 to be driven control along the transportable mode of X (horizontal stroke) Y (indulging) θ (rotation) direction.Move complete cycle that can the cutting face to above-mentioned all directions by making stacked 1.
Fig. 3 represents other embodiment, is provided with two rotary cutters.Rotary cutter is only to be driven control along the transportable mode of Y direction.In addition, stacked 1 is driven control along X θ direction.According to this formation, at first, can cut stacked 1 relative long limit 1a of rectangle simultaneously, then cut relative minor face 1b simultaneously.When the long limit of cutting, during with the cutting minor face, can change the interval of 2 rotary cutters.
According to Fig. 2,3 cutting process, the Control Shaft relevant with stacked 1 and rotary cutter is necessary for 3 of X, Y, θ, and processing unit (plant) is very complicated and large-scale, becomes the device of high price.Particularly,, then need more complicated control,, become expensive as stacked cutting apparatus if comprise the processing of circular arc class.
Relative therewith, under the situation of the cutting mechanism that utilizes the profiling mode shown in Figure 1, owing to can be the Control Shaft of Y, θ diaxon, control gear be oversimplified.In addition, owing to can be the operation of only pushing rotary cutter 5 and profiling roller 4, the necessity that does not position accurately be so just can carry out cut with simple control.The precision of cut, though decided by the dimensional accuracy of profiling mould 3, profiling mould 3 generally can be made of metal material, uses the machining precision of the general NC processing equipment that uses just can obtain sufficient precision.Have, owing to be the localization method of the physics that processing dimension is determined on the position when profiling mould 3 is pushed profiling roller 4, the repeatability of processing is superior again.For the change in size that causes by the wearing and tearing of profiling mould 3 etc., owing to compare the level of fully being allowed with stacked machining precision, so be not problem.
When carrying out stacked 1 section cutting, under stacked many pieces stacked 1 state, carry out.Under stacked 1 stacked situation, be in the state of neat section.Thus, owing to can process many pieces stacked 1 simultaneously, so working (machining) efficiency is good.And when carrying out cut, stacked 1 is cut to rectangle isotactic setting shape by shearing device in advance in last operation.
(stacked concrete example)
As stacked,, preferably be applicable to the material of optics in the present invention though not restriction especially can be used the material that utilizes the stacked various parts of bonding agent.
As optics, for example, enumerate be on polariscopic one or both sides across bond layer, the polaroid of stacked transparent protective film.
Polariscope does not limit especially, can use various materials.As polariscope, for example can enumerate dichroic substance such as absorption iodine or dichroic dye on the hydrophilic macromolecule films such as polyvinyl alcohol film, part dimethoxym ethane polyvinyl alcohol film, the partly-hydrolysed film of ethylene vinyl acetate copolymer class, the material of unilateral stretching, polyenoid based oriented films such as the desalination acid treatment thing of the processed thing of polyvinyl alcohol (PVA) or Polyvinylchloride etc.The preferred in these polariscope that constitutes by dichroic substance such as polyvinyl alcohol film and iodine.Though these polariscopic thickness do not limit especially, are generally about 5～80 μ m.
Of the polariscope of iodine, for example can make for 3～7 times that be stretched as former length by dyeing in the aqueous solution that polyvinyl alcohol (PVA) is immersed in iodine with dyeing of polyvinyl alcohol film and unilateral stretching.As required, also can be immersed in the aqueous solution of boric acid or potassium iodide etc.And then, as required, also can be before dyeing that polyvinyl alcohol is thin film dipped in water, wash.By washing polyvinyl alcohol film, except dirt or the anticlogging agent that can clean the polyvinyl alcohol film surface, expand by making the polyvinyl alcohol film, prevent that also the spot that dyes etc. is inhomogeneous.Stretching can be carried out after with iodine staining, also can stretch on the Edge Coloring limit, or use iodine staining again after stretching.Also can or stretch in the water-bath in the aqueous solution of boric acid or potassium iodide etc.
Be arranged on the transparent protective film of above-mentioned polariscopic one or both sides, superior materials such as preferably clear, physical strength, thermal stability, covering property of moisture, isotropy.As the material of transparent protective film, for example enumerate the styrenic polymer, polycarbonate polymer etc. of acronal, polystyrene or acrylonitrile styrene resin (AS resin) etc. of the cellulosic polymer, polymethylmethacrylate etc. of polyester polymer, diacetyl cellulose or the triacetyl cellulose etc. of polyethylene terephthalate or PEN etc.In addition, enumerate and use tygon; polypropylene; lopps and polyolefin with norborene structure; the polyolefin polymers of ethylene propylene copolymerization thing class; the polyvinyl chloride-base polymkeric substance; the acylamide polymer of nylon or aromatic polyamide etc.; the imines base polymer; the sulphur base polymer; the polyether sulphur base polymer; polyether-ether-ketone polymer; polyhenylene sulfuration thing base polymer; vinyl alcohol polymer; the vinylidene chloride base polymer; the polyvinyl butyral base polymer; the arylide base polymer; the polyoxymethylene base polymer; epoxide polymer or above-mentioned mixture of polymers etc. also are examples that forms the polymkeric substance of above-mentioned transparent protective film.Enumerate material with filmings such as thermohardening types such as acrylic compounds or urethanes class, acrylic-amino ethyl formate class or epoxies, silicon class and ultraviolet curing resins.
The thickness of transparent protective film is generally below the 500 μ m, is preferably 1～300 μ m.Particularly preferred 5～200 μ m's.
As transparent protective film, according to polarization characteristic or permanance etc., cellulosic polymers such as preferred triacetyl cellulose.Particularly preferred triacetylcellulose film.And, be provided with in polariscopic both sides under the situation of transparent protective film, outer can use the transparent protective film that constitutes by the same polymer material within it, the transparent protective film that also can use different polymeric materials etc. to constitute.
In addition, the spy opens the thin polymer film of record in the 2001-343529 communique (WO01/37007), for example, enumerates and contains the thermoplastic resin that has replacement and non-substituted imine base at (A) side chain; Resin combination with the thermoplastic resin that has replacement and non-phenyl and itrile group at (B) side chain.As a specific example, enumerate and contain by the contract film of resin combination of alternating copolymer that imines constitutes and acrylonitrile styrene copolymer of isoprene and N-methyl-maleic anhydride.Film can use the mixing of resin combination to be pressed into the film that product etc. constitute.
Have again, transparent protective film, preferred not painted as far as possible.Therefore, preferably uses and use Rth=[(nx+ny)/2-nz] phase difference value of the film thickness direction represented of d (nx, ny are the principal refractive index in the thin film planar, and nz is the refractive index of film thickness direction, and d is a film thickness) is-90nm～+ protective film of 75nm.Phase difference value (Rth) by using these thickness directions for-90nm～+ film of 75nm, can eliminate painted (optical clouration) of the polaroid that causes because of protective film substantially.The phase difference value of thickness direction (Rth), be more preferably-80nm～+ 60nm, especially preferably-70nm～+ 45nm.
Make above-mentioned transparent protective film not with the bonding face of polariscope on, also can implement with hard coat (hard coat) or antireflection handle, anti-adhesion (sticking) or diffusion and anti-dazzle (antiglare) be the processing of purpose.
Hard coat handle be with the polaroid surface to prevent impaired be the processing that purpose is carried out, for example can form in the lip-deep mode that good hardening coats such as the hardness of the ultraviolet curing resin that acrylic compounds, silicon class etc. are suitable or sliding properties are attached to transparent protective film.It is preventing that the lip-deep outer reflection of light of polaroid from being the processing that purpose is implemented that antireflection is handled, can be by being that the formation of the antireflection film etc. of standard achieves the goal with existing.In addition, anti-adhesion is handled to prevent that itself and connecting airtight of adjacent layer from being that purpose is implemented.
Also have; it is to prevent external light reflection on the surface of polaroid that anti-dazzle is handled; the processing that the visual grade that hinders polaroid to see through light is implemented for purpose; for example, the surface roughening mode that can be by utilizing sandblast mode or embossing processing mode or the suitable modes such as fit system of transparent particulate are paid the micro concavo-convex structure and are formed on transparent protective film.The particulate that is contained in the formation as above-mentioned surperficial micro concavo-convex structure, the transparent particulates such as organic based fine particles that for example can to use average particle diameter be the mineral-type particulate that also has electric conductivity of the formation such as silicon dioxide, aluminium oxide, titania, zirconia, tin oxide, indium oxide, cadmium oxide, antimony oxide of 0.5～50 μ m, be made of crosslinked or uncrosslinked polymkeric substance etc.Under the situation that forms surperficial micro concavo-convex structure, the use amount of particulate, transparent resin 100 weight portions with respect to forming surperficial micro concavo-convex structure are generally about 2～50 weight portions, are preferably 5～25 weight portions.Anti-dazzle photosphere also can be to have the part that diffusion polarizing piece sees through light and enlarges the diffusion layer (enlarging viewing function etc.) of usefulness such as visual angle concurrently.
And above-mentioned anti-reflection layer, anti-adhesive linkage, diffusion layer or anti-dazzle photosphere etc. except being arranged on the transparent protective film, as other purposes optical layers, also can be used as the part different with protective clear layer and are provided with.
In the bonding processing of above-mentioned polariscope and transparent protective film, can use various water class bonding agents.As water class bonding agent, can enumerate polyvinyl alcohol bonding agent, gelatin class bonding agent, vinyl latex, water class polyurethane, water kind polyester etc.Above-mentioned bonding agent uses the bonding agent that is made of aqueous solution usually.
By in above-mentioned bonding agent, containing water-soluble cross-linker, can increase gel strength, cementability is improved.In the polyvinyl alcohol bonding agent, can contain water-soluble cross-linkers such as boric acid, borax, glutaraldehyde, melamine, oxalic acid.Though the addition of water-soluble cross-linker does not limit especially, with respect to solid constituent 100 weight portions of main materials such as polyvinyl alcohol (PVA), be below 40 weight portions usually.Be preferably 0.5～30 weight portion.In addition, above-mentioned bonding agent also can make PH change in order to make crosslinked carrying out.And then, in above-mentioned bonding agent, in modulation during its aqueous solution, as required, can cooperate the adjuvant of antiseptics such as formic acid, phenol, salicylic acid, benzaldehyde etc.
The applying of polariscope and transparent protective film can utilize the roll-type laminating machine to carry out.The thickness of adhesive linkage though do not limit especially, is generally about 0.05～5 μ m.
Above-mentioned polaroid, in use, the optical thin film that can be used as with other optical layers after stacked uses.About this optical layers, limit especially, for example can use certain optical layers in the formation of liquid crystal indicators such as reflecting plate or half transmitting plate, polarizer (comprise 1/2 or 1/4 etc. wavelength plate), viewing angle compensation film etc., used more than 1 layer or 2 layers.Particularly, in polaroid of the present invention, reflection type polarizer that preferred further stacked reflecting plate or semi-penetration plate form or semi-transmission type polaroid, at the wide viewing angle polaroid of further stacked viewing angle compensation film on the polaroid or the further polaroid of stacked raising brightness film on polaroid.
Reflection type polarizer, be that the reflection horizon is set on polaroid, be to form the polaroid that the liquid crystal indicator make the type that shows from the reflected light reflection of visual side etc. uses, have and to omit the built-in of light sources such as back lighting device, reach the advantages such as purpose of thinness of liquid crystal indicator simply.The formation of reflection type polarizer as required, can utilize across protective clear layer etc., and the mode etc. of setting up the reflection horizon that is made of metal etc. on the single face of polaroid suitably mode is carried out.
As the concrete example of reflection type polarizer, enumerate when being necessary, set up paper tinsel or the vapor-deposited film that constitutes by reflective metal such as aluminium on the single face of the transparent protective film after delustring is handled, thus the polaroid in formation reflection horizon etc.In addition, also enumerate to make in the above-mentioned transparent protective film and contain particulate, make surperficial micro concavo-convex structure, have the polaroid etc. in the reflection horizon of micro concavo-convex structure thereon.The reflection horizon of above-mentioned micro concavo-convex structure has by irregular reference and makes incident light diffusion, prevents directionality or twinkling outward appearance, suppresses the uneven advantage of light and shade etc.Have again, contain the transparent protective film of particulate, also have when incident light and reflected light thereof see through film and spread, further suppress the uneven advantage of light and shade etc.Make the formation in reflection horizon of micro concavo-convex structure of the surperficial micro concavo-convex structure reflection of transparent protective film; for example; can utilize in suitable modes such as evaporation modes such as vacuum evaporation mode, ion plating mode, cathodic sputtering mode or plating modes, the lip-deep method that metal directly is attached to protective clear layer waits carries out.
Reflecting plate replaces the mode directly pay on the transparent protective film of above-mentioned polaroid, and also can be used as with the transparent membrane is the reflector plate that the reflection horizon forms to be set on the suitable film of standard use.And; because the reflection horizon is made of metal usually; so its reflecting surface by the use-pattern under the lining states such as transparent protective film or polaroid, more preferably reduces at the reflectivity that prevents to be caused by oxidation, also has the long-term avoidance aspect of setting up in addition that continues aspect or protective seam of initial reflectance.
And the semi-transmission type polaroid can be by using reflective layer reflects light in above-mentioned, and the semi-transmission type reflection horizon of making the half-mirror that sees through etc. obtains.The semi-transmission type polaroid, usually be arranged on the inboard of liquid crystal cells, can be formed in the brighter environment under the situation of using liquid crystal indicator etc., make incident light reflection from visual side (demonstration side), display image, in more dim environment, use the built-in light sources such as back lighting device that are built in the semi-transmission type polaroid back side, the liquid crystal indicator of the type of display image etc.That is, the semi-transmission type polaroid, under bright environment, can the save on backlight device etc. the energy that uses of light source, be useful even under more dim environment, utilize the formation of liquid crystal indicator that built-in light source also can type of service etc.
Ellipsoidal polarizing plate or circular polarizing disk that further laminated phase-difference plate on polaroid is formed describe.Rectilinearly polarized light being become elliptically polarized light or circularly polarized light, perhaps elliptically polarized light or circularly polarized light are become rectilinearly polarized light, or under the situation of the polarization direction of change rectilinearly polarized light, use polarizer etc.Particularly, as rectilinearly polarized light being become circularly polarized light or circularly polarized light being become the polarizer of rectilinearly polarized light, use so-called 1/4 wavelength plate (being also referred to as λ/4 plates).1/2 wavelength plate (being also referred to as λ/2 plates) uses under the situation of the polarization direction that changes rectilinearly polarized light usually.
Ellipsoidal polarizing plate by STN Super TN (super twist nematic) (STN) birefringence of the liquid crystal layer of type liquid crystal indicator and painted (blue or yellow) that produce, shows that the situation etc. of above-mentioned uncoloured black and white is used effectively down in compensation (preventing).Have, the refractive index that control is three-dimensional preferably also can compensate painted that (preventing) produced when vergence direction is seen the drawing of liquid crystal indicator again.Circular polarizing disk for example uses down effectively in the situation of the tone of the image of the reflection-type liquid-crystal display device of adjusting color display image etc., in addition, also has the function of reflecting of preventing.As the concrete example of above-mentioned polarizer, enumerate the polarizer of oriented layer of alignment films, the liquid crystal polymer of birefringent film that the film that is made of the polymkeric substance that is fit to of polycarbonate, polyvinyl alcohol (PVA), polystyrene, polymethylmethacrylate, polypropylene or other polyolefin, polyarylate, polyamide with the film support stretch processing forms or liquid crystal polymer.Polarizer, for example can be to have and parts with the corresponding phase differential that is fit to such as the application target of the polarizer that is compensated for as purpose at the painted or visual angle that birefringence was caused of various wavelength plates or liquid crystal layer etc., also can be that stacked polarizer more than 2 kinds comes the parts of optical characteristics such as control phase difference.
In addition, above-mentioned ellipsoidal polarizing plate or reflection-type ellipsoidal polarizing plate are to form with the stacked polaroid of suitable combination or reflection type polarizer and polarizer.So-called ellipsoidal polarizing plate etc., though can be by mode with combination (reflection-type) polaroid and polarizer, in turn that these are stacked respectively and form in the manufacture process of liquid crystal indicator, but as optical thin films such as aforesaid ellipsoidal polarizing plates, superior at aspects such as the stability of quality or lamination operation, have and can make liquid crystal indicator etc. make the advantage that efficient improves.
The viewing angle compensation film even be never vertical with drawing, when almost the direction of Qing Xieing is seen the drawing of liquid crystal indicator, can see more brightly that also image ground enlarges the film that the visual angle is used.As this viewing angle compensation polarizer, for example, constitute by material in the oriented layer of alignment films such as phase-contrast film, liquid crystal polymer or transparent material upper support liquid crystal polymer etc.Common polarizer, relative by the birefringent thin polymer film of having of unidirectional stretching with use along its face direction, in the polarizer that uses as the viewing angle compensation film, what use is the birefringent thin polymer film that has along face direction biaxial stretching, perhaps the polymkeric substance of the multiple refraction with control thickness direction refractive index that also stretches along the uniaxial tension of face direction and thickness direction or the biaxially oriented film of tilted alignment film class etc.As the tilted alignment film, be set forth in bonding heat-shrinkable film on the thin polymer film, under the effect of the convergent force that produces because of heating,, perhaps make the film of liquid crystal polymer tilted alignment with the film of thin polymer film stretch processing and/or shrink process.The starting material polymkeric substance of polarizer, use with the polymer phase that in polarizer before, illustrates with material, can use to prevent by the painted grade that variation was caused at the visual angle of the phase differential of liquid crystal cells or to have enlarged the suitable material of the visual angle of eyesight as purpose.
In addition, reach the purpose of the wide viewing angle of eyesight, preferably can use the optical compensation polarizer that supports the optical anisotropic layer that the tilted alignment layer by the oriented layer of liquid crystal polymer, particularly karaoke machine liquid crystal polymer constitutes with triacetylcellulose film.
The polaroid of the polaroid and the raising brightness film of having fitted, the inner side surface that is set at liquid crystal cells usually uses.Improve the brightness film and be and be used to from the back lighting device of liquid crystal indicator etc. or inboard reflection etc., if natural light incident, the rectilinearly polarized light of then reflection regulation polarization axle or the circularly polarized light of prescribed direction, the film of other light transmission characteristics, the stacked polaroid that improves brightness film and polaroid, make light incident from light sources such as back lighting devices, obtain the regulation polarization state see through light the time, the light beyond the afore mentioned rules polarization state does not see through and is reflected.Be by obtaining utilizing reflection horizon of further being located at its rear side etc., make the light counter-rotating of on this raising brightness pellicular front, reflecting, reenter to be mapped to and improve on the brightness film, make its part or all light transmission as the regulation polarization state, see through the increment of the light that improves the brightness film, simultaneously, supply with the polarized light that makes polariscope absorb difficulty, and obtain the increase of utilizable light quantity in the liquid crystal display image demonstration etc., the film that brightness is improved.That is, improve the brightness film not using, in back lighting device etc. from the inboard of liquid crystal cells by under the situation of polariscope incident light, have wide part with the inconsistent polarization direction of polariscopic polarization axle and be polarized mirror and absorb, do not see through polariscope.That is, though according to using polariscopic characteristic difference and different, almost 50% light is polarized the mirror absorption, and like this, utilizable light quantity such as liquid crystal image demonstration reduces the image deepening.Do not make light incide polariscope repeatedly owing to improve the brightness film with the polarization direction that is polarized the mirror absorption, in case on raising brightness film, make its reflection, the reflection horizon of being located at rear side by other makes its counter-rotating, reenter and be mapped to the operation that improves on the brightness film, only becoming in this polarisation of light direction that reflects between the two, reverses can be by the polarized light of polariscopic polarization direction, improving the brightness film sees through it, supply with to polariscope, so can be effectively in the image of liquid crystal indicator shows, use the light of back lighting device etc., can illuminate drawing.
Also can between raising brightness film and above-mentioned reflection horizon etc., diffuser plate be set.Though by the above-mentioned reflection horizon of light directive of the polarization state that improves the reflection of brightness film etc., the diffuser plate that is provided with is removed polarization state in the light that evenly diffuses through, become unpolarized state.That is, diffuser plate makes polarized light recover original natural light state.Carry out this unpolarized state repeatedly, promptly the light directive reflection horizon of natural light state etc. by reflections such as reflection horizon, reenters by diffuser plate and is mapped to the action that improves on the brightness film.Like this, by the diffuser plate that polarized light is returned to the natural light state being set improving between brightness film and the above-mentioned reflection horizon etc., can be when keeping the brightness that shows drawing, reduce brightness inhomogeneous of demonstration drawing, bright drawing is provided equably.Like this, by diffuser plate is set, first incident light increases the number of occurrence of reflection, adds the diffusion function of diffuser plate, and the bright uniformly drawing that shows can be provided.
As above-mentioned raising brightness film, for example, can use the multi-layer laminate of the different film of the multilayer film of display medium or refractive index isotropy, see through the rectilinearly polarized light of regulation polarization axle, reflect the film of the characteristic of other light, with at the alignment films of film substrate upper support variable color liquid crystal polymer or its aligned liquid-crystal layer, reflect in left-handed or the dextrorotation either party circularly polarized light, and see through the suitable films such as film of the characteristic of other light.
Therefore, see through on the raising brightness film of type, concentrate polarization axle to be directly incident on polaroid, can in the absorption loss that suppresses polaroid, it be seen through by making it see through light at the rectilinearly polarized light that makes the afore mentioned rules polarization axle.On the other hand, on the raising brightness film of other circular polarization types that see through the variable color liquid crystal layer, though it is directly incident in the polariscope, by suppressing the absorption loss aspect, preferably by polarizer with this circularly polarized light rectilinearly polarized lightization, make it incide polaroid.And, as this polarizer,, circularly polarized light can be transformed to rectilinearly polarized light by using 1/4 wavelength plate.
In the wide wavelength coverage of visible region etc. as the polarizer of 1/4 wavelength plate performance function, for example, can be with respect to the light color light of wavelength 550nm the phase separation layer and the phase separation layer of other demonstration phase difference characteristics as 1/4 wavelength plate performance function, for example bring into play the phase separation layer of function overlapping mode as 1/2 wavelength plate.Therefore, be disposed at the polarizer between polaroid and the raising brightness film, can constitute by the phase separation layer more than 1 layer or 2 layers.
And, for the variable color liquid crystal layer, it is the combination that is shaped as the different material of reflection wavelength by doing, the overlapping configuration structure that forms more than 2 layers or 3 layers, can in the wide wavelength coverage of visible region etc., obtain the parts of reflection circle polarized light, based on this, can obtain the circularly polarized light that sees through in the wide wavelength coverage.
In addition, polaroid can be above-mentioned polarized light divergence type polaroid, by polaroid and the stacked parts that constitute of the optical layers more than 2 layers or 3 layers.Therefore, can be reflection-type ellipsoidal polarizing plate or the semi-transmission type ellipsoidal polarizing plate that above-mentioned reflection type polarizer of combination or semi-transmission type polaroid and polarizer form.
Above-mentionedly can use suitable bonding way such as adhesive linkage on stacked.When above-mentioned polaroid or other optical thin film bonding, these optic axises can form suitable arrangement angles corresponding to phase difference characteristics that becomes purpose etc.
On the optical thin film of above-mentioned polaroid or stacked at least 1 layer of polaroid, the adhesive linkage with bonding usefulness of miscellaneous part such as liquid crystal cells can be set also.Though forming the bonding agent of adhesive linkage does not limit especially, but for example, can suitably select polymkeric substance with acrylic polymers, silicon base polymer, polyester, polyurethane, polyamide, polyethers, fluorine class or rubber-like etc. serves as that the material of basic polymkeric substance uses.Particularly, preferably can use other optical transparences of acrylic-based adhesives good, show the adhesiveness of wettability, coherency and the cementability of appropriateness, the material that weatherability or thermotolerance are good.
In addition, on above-mentioned basis, from the foaming phenomenon that prevents to cause or peel off phenomenon because of moisture absorption, prevent that the optical characteristics that is caused by thermal expansion difference etc. from reducing or the burr of liquid crystal cells prevents, even the preferred adhesive linkage that hydroscopicity is low and thermotolerance is good is said in the aspects such as formation of the good liquid crystal indicator of high-quality, permanance.
Adhesive linkage, for example, can contain the resene that is added to natural goods or complex, particularly pay formations such as adhesive resin or glass fibre, beaded glass, metal powder, other inorganic powders filling agent or pigment, colorant, prevent the adjuvant in the adhesive linkages such as oxygenant.Also can be to contain particulate and the diffusible adhesive linkage of display light in addition.
On the single or double of polaroid or optical thin film, set up adhesive linkage, can carry out by rights.As this example, enumerating modulation makes basic polymkeric substance or its composition dissolves or is dispersed in adhesive solution by 10～40 weight % sizes in the independent thing of the appropriate solvent of toluene or ethyl acetate etc. or the solvent that potpourri constitutes, with suitable expansion mode such as casting mode or application pattern it directly is attached to mode on the polaroid or on the optical thin film, or on above-mentioned standard separator(-ter), form adhesive linkage, again it is transplanted on mode on the polaroid or on the optical thin film etc.
Adhesive linkage, also can be used as different form or the overlapping layer of materials such as kind be arranged on polaroid or optical thin film one side or two-sided on.In addition, under situation about being arranged on two-sided, also can inside and outside polaroid or optical thin film, make the adhesive linkage of different compositions or kind or thickness etc.The thickness of adhesive linkage can corresponding application target or suitably decision such as bonding force, generally is preferably 1～500 μ m, particularly preferred 10～100 μ m.
For the face that exposes of adhesive linkage, up to provide use during, in order to prevent purposes such as its pollution, by the temporary transient bonding covering of separator(-ter).Thus, under common treatment state, can prevent to contact with adhesive linkage.As separator(-ter), except above-mentioned thickness condition, for example, can use in requisition for silicon class or suitable removers such as chain alkyl class, fluorine class or molybdenum sulfide, with plastic sheeting, sheet rubber, paper, cloth, nonwoven fabrics, net, foaming sheet or metal forming, these suitable slender lobule bodies such as lamination plate body, the parts etc. that are coated with processing are the suitable parts of standard with existing.
Have again; in the present invention; at polariscope, transparent protective film or the optical thin film etc. that form above-mentioned polaroid; also have in each layer such as adhesive linkage; for example, can be to utilize mode such as the mode handled with ultraviolet light absorbers such as salicylate compounds or phenol compound, benzotriazole compound or alpha-cyanoacrylate ester compounds, nickel coordination salt compounds and make it have the parts of UVA function.
Above-mentioned optics (polaroid, optical thin film) can preferably use in the formation of various devices such as liquid crystal indicator.The formation of liquid crystal indicator can be carried out according to standard in the past.Promptly, liquid crystal indicator, though generally by suitably assemble liquid crystal cells and polaroid or optical thin film reach in requisition for component parts such as illuminator, group is gone into driving circuit and is waited and form, but in the present invention, except using polaroid of the present invention or optical thin film aspect, do not limit especially, can be according to standard in the past.Even for liquid crystal cells, for example also can use the material of TN type or any types such as STN type, π type.
One-sided or the double sided arrangements that can be formed on liquid crystal cells has the liquid crystal indicator of polaroid or optical thin film, or uses the suitable liquid crystal indicator of back lighting device or reflecting plate etc. in illuminator.In this case, polaroid of the present invention or optical thin film can be arranged on the one-sided or bilateral of liquid crystal cells.Under the situation that polaroid or optical thin film are set on the bilateral, these can be identical materials, also can be different materials.Have again, when forming liquid crystal indicator, for example, suitable parts such as diffuser plate, anti-dazzle photosphere, antireflection film, fender, prism array, lens array sheet, light diffusing sheet, back lighting device can be disposed more than 1 layer or 2 layers and go up in position.
Then, Organnic electroluminescent device (organic EL display) is described.Generally, organic EL display is to stack gradually transparency electrode, organic luminous layer and metal electrode on transparency carrier, forms luminophor (organic electroluminescent body).Here, organic luminous layer, it is the duplexer of various organic films, for example, know the duplexer of the luminescent layer that has the hole input horizon that constitutes by triphenylamine derivative etc. and constitute by fluorescence organic solids such as anthracenes, or the duplexer of the electron injecting layer of formations such as this luminescent layer and perylene derivant, or the formation of the various combinations such as duplexer of these hole input horizons, luminescent layer and electron injecting layer.
Organic EL display, with by on transparency electrode and metal electrode, applying voltage, inject hole and electronics to organic luminous layer, the energy activating fluorescent material that utilizes these holes to generate with combining again of electronics, the fluorescent material that is energized principle of radiating light when being returned to basic status is luminous.The mechanism that wherein is called combination again is identical with general diode, can envision from these, and the relative voltage that applies with luminous intensity of electric current shows the strong non-linear property that is attended by rectification.
In organic EL display, in order to take out luminous in the organic luminous layer, electrode that must at least one side is transparent, will use as anode with the transparency electrode that indium oxide transparent conductive bodies such as (ITO) forms usually.On the other hand, aspect electronics being injected easily and improve luminescence efficiency, it is important using the little material of working function on negative electrode, uses metal electrodes such as Mg-Ag, Al-Li usually.
In the organic EL display of this formation, organic luminous layer is that as thin as a wafer film forms about 10nm with thickness.Therefore, organic luminous layer is also identical with transparency electrode, and light almost completely sees through.Consequently, non-when luminous from the surperficial incident of transparency carrier, see through transparency electrode and organic luminous layer, light by the metal electrode reflection, owing to penetrate to the face side of transparency carrier once more, so from the outside when visual, the display surface of organic EL display can be seen as minute surface ground.
Utilizing voltage application and have transparency electrode on the face side of luminous organic luminous layer containing, have in the organic EL display of organic electroluminescent body of metal electrode simultaneously in the inner face side of organic luminous layer, when can polaroid be set, between this transparency electrode and polaroid, polarizer is set in the face side of transparency electrode.
Polarizer and polaroid are owing to have the effect of the light polarization that will come from outside incident and by metal electrode reflection, so have the effect of minute surface that can not visual metal electrode from the outside according to this polarization.Particularly, constitute polarizer, and, then can cover the minute surface of metal electrode fully if polaroid is adjusted into π/4 with the angle that the polarization direction became of polarizer by 1/4 wavelength plate.
That is, incide the exterior light of this organic EL display, only see through rectilinearly polarized light by polaroid.Though it be 1/4 wavelength plate and polaroid with the angle that the polarization direction became of polarizer is π/4 o'clock that this rectilinearly polarized light utilizes polarizer generally to become elliptically polarized light, particularly polarizer, becomes circularly polarized light.
This circularly polarized light sees through transparency carrier, transparency electrode, organic film, by the metal electrode reflection, sees through organic film, transparency electrode, transparency carrier once more, becomes rectilinearly polarized light on polarizer once more.And, this rectilinearly polarized light, since vertical with the polarization direction of polaroid, so can not see through polaroid.Consequently, can cover the minute surface of metal electrode fully.
(embodiment)
Below, embodiment and comparative example are described.As stacked, prepare to require employed polarization film in the liquid crystal indicator of machining precision or finishing precision, carry out following processing and evaluation.
As embodiment 1, be stacked 20 pieces of polaroids, utilize the cutting mechanism of profiling mode as shown in Figure 1, be the size of 250mm * 190mm with the product finishing of 255mm * 195mm.Carry out 3 these operations repeatedly, estimate the size of each sample and the outward appearance of machined surface.
As being embodiment 2, be stacked 50 pieces of polaroids, carry out processing and the evaluation identical with embodiment 1.
As a comparative example, be the Punching Technology of 50 pieces of polaroids being implemented cutters, carry out the evaluation identical with embodiment 1,2.And, in comparative example, in the cutting mechanism of Fig. 2 or Fig. 3 etc., do not carry out the cut of section.In table 1, represent evaluation result.
(table 1)
| Machining precision σ (mm) | Machined surface state (observing) with * 100 | ||
| Long side direction | Short side direction | ||
| Embodiment 1 | 0.041 | 0.036 | ◎ |
| Embodiment 2 | 0.044 | 0.041 | ◎ |
| Comparative example | 0.042 | 0.038 | △ (having bonding agent to overflow on the part) |
Understand from the result of table 1,, can carry out processing with existing mode par for machining precision.In addition, in comparative example, though find have bonding agent to overflow on the part, the state of machined surface is good in an embodiment.
Claims (7)
1. the stacked section that will be cut to the regulation shape cuts accurately machined stacked cutting working method, it is characterized in that, utilizes the profiling mode to carry out the control of cut.
2, cutting working method according to claim 1 stacked wherein, under overlapping many pieces stacked state, is concentrated the section of many pieces stacked of cutting.
3, a kind of stacked of utilizing the described stacked cutting working method cutting of claim 1.
4, stacked according to claim 3, wherein, above-mentioned stacked is the optical thin film material.
5, a kind of optical element is characterized in that, is provided with the described optical thin film material of claim 4 on the single or double of optical element.
6, a kind of image display device wherein, is mounted with the described optical thin film material of claim 4.
7, a kind of image display device wherein, is mounted with the described optical element of claim 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002314082 | 2002-10-29 | ||
| JP2002314082A JP2004148419A (en) | 2002-10-29 | 2002-10-29 | Cutting method for laminated sheet, laminated sheet, optical element, and image display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1498718A true CN1498718A (en) | 2004-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101044460A Pending CN1498718A (en) | 2002-10-29 | 2003-10-29 | Cutting working method of laminates and laminates and optical component and image displaying device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2004148419A (en) |
| CN (1) | CN1498718A (en) |
| TW (1) | TW200410785A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328190A (en) * | 2011-10-14 | 2012-01-25 | 株洲南车时代电气股份有限公司 | Metal gasket processing method |
| CN106182145A (en) * | 2015-03-26 | 2016-12-07 | 中尾技术有限公司 | Processing unit (plant) |
| CN109277613A (en) * | 2017-07-20 | 2019-01-29 | 住友化学株式会社 | The manufacturing method of cutting apparatus and polarization plates |
| CN112442882A (en) * | 2020-09-29 | 2021-03-05 | 江苏爱护佳健康科技有限公司 | Physiotherapy pad production device with tailor and sew up integrative mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4954662B2 (en) | 2006-01-27 | 2012-06-20 | 日東電工株式会社 | Cutting method and manufacturing method of sheet-like member |
| JP5876990B2 (en) * | 2011-03-25 | 2016-03-02 | 住友化学株式会社 | Manufacturing method of end-face processed polarizing plate |
| JP2012203210A (en) * | 2011-03-25 | 2012-10-22 | Sumitomo Chemical Co Ltd | Method for manufacturing end face processed polarizing plate |
| JP5267719B1 (en) * | 2012-11-05 | 2013-08-21 | オムロン株式会社 | A resin sheet manufacturing method, an optical member manufactured using the resin sheet, a surface light source device using the optical member, a liquid crystal display device, and a mobile device. |
| JP6899721B2 (en) | 2016-07-22 | 2021-07-07 | 日東電工株式会社 | Polarizing plate manufacturing method and its manufacturing equipment |
| JP2018012182A (en) | 2016-07-22 | 2018-01-25 | 日東電工株式会社 | Method and apparatus for manufacturing polarization plate |
| JP7107734B2 (en) * | 2018-04-27 | 2022-07-27 | 住友化学株式会社 | Manufacturing method of polarizing plate |
| JP7335126B2 (en) * | 2019-10-15 | 2023-08-29 | 住友化学株式会社 | Method for manufacturing optical member |
| CN115167025B (en) * | 2022-07-15 | 2023-08-22 | 苏州华星光电技术有限公司 | Preparation method of display device |
-
2002
- 2002-10-29 JP JP2002314082A patent/JP2004148419A/en active Pending
-
2003
- 2003-10-28 TW TW92129943A patent/TW200410785A/en unknown
- 2003-10-29 CN CNA2003101044460A patent/CN1498718A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328190A (en) * | 2011-10-14 | 2012-01-25 | 株洲南车时代电气股份有限公司 | Metal gasket processing method |
| CN106182145A (en) * | 2015-03-26 | 2016-12-07 | 中尾技术有限公司 | Processing unit (plant) |
| CN106182145B (en) * | 2015-03-26 | 2019-07-09 | 中尾技术有限公司 | Processing unit (plant) |
| CN109277613A (en) * | 2017-07-20 | 2019-01-29 | 住友化学株式会社 | The manufacturing method of cutting apparatus and polarization plates |
| CN109277613B (en) * | 2017-07-20 | 2022-12-06 | 住友化学株式会社 | Cutting device and method for manufacturing polarizing plate |
| CN112442882A (en) * | 2020-09-29 | 2021-03-05 | 江苏爱护佳健康科技有限公司 | Physiotherapy pad production device with tailor and sew up integrative mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200410785A (en) | 2004-07-01 |
| JP2004148419A (en) | 2004-05-27 |
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