CN100476414C - Inspection method and system for sheet products - Google Patents
Inspection method and system for sheet products Download PDFInfo
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- CN100476414C CN100476414C CNB2004100587110A CN200410058711A CN100476414C CN 100476414 C CN100476414 C CN 100476414C CN B2004100587110 A CNB2004100587110 A CN B2004100587110A CN 200410058711 A CN200410058711 A CN 200410058711A CN 100476414 C CN100476414 C CN 100476414C
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- lamellar product
- positional information
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8901—Optical details; Scanning details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
- G01N21/5907—Densitometers
- G01N2021/5957—Densitometers using an image detector type detector, e.g. CCD
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00722—Communications; Identification
- G01N35/00732—Identification of carriers, materials or components in automatic analysers
- G01N2035/00742—Type of codes
- G01N2035/00752—Type of codes bar codes
Abstract
Provided is an inspection method for a rolled material for a polarizing plate capable of recording a result existing on a rolled material for a strip-shaped polarizing plate without greatening a defect unnecessarily. This inspection method comprises the steps of: detecting the defect of the rolled material N for strip-shaped polarizing plate; printing the positional information of the detected defect at the end part of the width direction of the rolled material N for the polarizing plate in the form of a bar code B; and rolling up the rolled material N for the strip-shaped polarizing plate on which the bar code B is recorded on a roll 10. The inspection method further comprises the steps of: pulling out the rolled material N for the strip-shaped polarizing plate from the roll 10; detecting the bar code B printed at the end part of the width direction of the rolled material N for the polarizing plate; marking at a defective part based on the detected positional information; and punching out each polarizing plate from the rolled material N for the polarizing plate after marking.
Description
Technical field
The present invention relates to write down inspection method and the check system of defective that exists in the banded lamellar product and the lamellar product that carries out mark at defective locations.
Background technology
As the lamellar product of band shape, the polaroid starting material that use in the liquid crystal indicator are for example arranged.Begin to carry out as follows from the polaroid starting material of band shape to the operation of each polaroid being carried out stamping-out.At first, detect the defectives such as damage that exist on the raw-material surface of polaroid.When detecting defective, this defective locations is carried out mark, the polaroid starting material are wound into reel and take care of.Though according to specification from the user, polaroid as end article has all size, but because the polaroid starting material can be shared, therefore can make the polaroid starting material in advance in a large number, (require) that stamping-out goes out the polaroid goods of required size from the polaroid starting material in the future afterwards as required again according to order from each user.
Also have,, for example be published in the spy and opened (with reference to claim, Fig. 1, Fig. 2) in the 2002-303580 communique as the method for carrying out mark at defective locations.In the prior art, utilize mark mechanism to add the damage mark in the position that detects defective.Specifically, utilize, add the damage mark along a plurality of trace members that add of the Width configuration of lamellar product.
Under the situation that obtains the polaroid goods, the polaroid starting material that are wound into reel to be pulled out, stamping-out goes out the polaroid goods of required size.On the polaroid goods, do markd goods owing to can not will be removed as end article.
But, following problem is arranged in the inspection method of the enterprising row labels of described defective locations.That is, as previously mentioned, after putting on mark, though lamellar product wound up forms reel, when carrying out mark, owing on the position of having carried out mark, can produce slight expansion, therefore when being wound into reel, might on other normal position, produce new defective.Owing on the defective locations of this new generation, do not carry out mark, therefore might will exist the goods of defective to offer the user.In addition, owing to produced new defective, therefore also have the problem that stock utilization descends.The method that serves as a mark, except the foregoing method that adds the damage mark, the method for the shape that also useful ink print is specific etc. still, because the mark that utilizes printing ink to form also has thickness, are therefore producing still not change aspect the new defective.
Summary of the invention
In view of described situation, the objective of the invention is to, provide and can write down defective that exists in the banded lamellar product and the inspection method and the check system that can bootlessly not enlarge the lamellar product of defective.
In order to solve described problem, the feature of the inspection method of lamellar product of the present invention is to have:
Detect the defective of banded lamellar product operation,
With the positional information of the described defective that is detected be recorded in the Width end of lamellar product operation,
The lamellar product that has write down the band shape of described positional information is wound into the operation of reel.
Action effect by this inspection method that constitutes the lamellar product that is produced is as follows.At first, detect the defective of banded lamellar product, the positional information of this defective that is detected is recorded on the Width end of lamellar product.Reel banded lamellar product and form reel thereafter.Here, the positional information of defective is recorded in the Width end of lamellar product, and this Width end is the zone of not using as goods.So, even in this Width end with mode record position information arbitrarily, and lamellar product is wound into reel, also can on the zone of using, not produce new defective as end article.Consequently, can provide defective that exists on the lamellar product that can write down band shape and the inspection method that can bootlessly not enlarge the lamellar product of defective.
As suitable embodiment of the present invention, can enumerate have from described reel pull out banded lamellar product operation, detect the described positional information of the Width end that is recorded in lamellar product operation, according to the described positional information that is detected come in the enterprising row labels of defective locations operation, go out the embodiment of the operation of each lamellar product from the lamellar product stamping-out of band shape after carrying out this mark.
When adopting this to constitute, pull out banded lamellar product from reel, and detect the positional information that is recorded in the Width end.According to this positional information that is detected, in the enterprising row labels of defective locations.Then, determine each lamellar product from the lamellar product upper punch of band shape.Owing to carrying out behind the mark, can obtain each lamellar product immediately, therefore can defective not enlarged because of mark.
As other suitable embodiment of the present invention, can enumerate the embodiment that the range information between defective and Width end is write down as described positional information.
Though the defective of lamellar product is present in the somewhere of Width, positional information is recorded on the Width end.By as the range information between positional information recording defect and Width end, can determine defective locations at an easy rate.
As other suitable embodiment of the present invention, can enumerate the embodiment that writes down described positional information with the form of bar code (bar code).Owing to, can when reading bar code, use commercially available bar code sensor, aspect cost, be favourable therefore by carrying out record with bar code.
As another suitable embodiment of the present invention, can enumerate as the embodiment of described positional information with the range information between bar code and two kinds of form recording defects of numeral and Width end.
With numeral and bar code record range information, can also easily with the naked eye finish affirmation by simultaneously to defective locations.
In order to solve described problem, the feature of the check system of lamellar product of the present invention is to possess:
Detect the defective of banded lamellar product defects detection mechanism,
With the positional information of the described defective that is detected be recorded in the Width end of lamellar product defect record mechanism,
The lamellar product that has write down the band shape of described positional information is wound into the mechanism of reel.
As suitable embodiment of the present invention, can enumerate following mode, that is, possess:
From described reel pull out banded lamellar product mechanism,
Detect the described positional information of the Width end that is recorded in lamellar product positional information testing agency,
According to the described positional information that is detected defective locations carry out mark mark mechanism,
After carrying out this mark, determine the stamping-out mechanism of each lamellar product from the lamellar product upper punch of band shape.
As other embodiment of the present invention, can enumerate that described positional information is recorded in the mode of bar code and described positional information testing agency is the embodiment of bar code reader.
The action effect of this check system is as aforementioned.
Description of drawings
Fig. 1 is the synoptic diagram (printing bar code) of formation of the check system of expression lamellar product.
Fig. 2 is the synoptic diagram (bar code reads) of formation of the check system of expression lamellar product.
Fig. 3 is the process flow diagram of the action of expression system.
Fig. 4 is the figure that expression utilizes the defect record method of other modes.
Embodiment
As the lamellar product of handling in the native system can be that example describes with the polaroid starting material.The polaroid starting material are made into long band shape, thereby can go out the polaroid of different sizes from the polaroid starting material stamping-out of film like.The polaroid material N can the TAC film makes by for example pasting on the tow sides of the PVA film of making in advance.Be necessary to detect the surface or the inner existing defective (damage or foreign matter etc.) of this polaroid material N that is made into multi-ply construction.
The polaroid material N is to utilize the manufacture method that comprises following operation to make; promptly (A) to implemented dyeing, polyvinyl alcohol film crosslinked and stretch processing carries out drying and obtains polariscopic operation; (B) operation of pasting protective seam in these polariscopic one-sided or both sides (C) is carried out the operation of heat treated after stickup.
Each handles the dyeing of polyvinyl alcohol film, crosslinked, stretching etc. and does not need to carry out respectively, also can carry out simultaneously, and in addition, each order of handling also can be arbitrarily.And, as the polyvinyl alcohol film, also can use the polyvinyl alcohol film of having implemented swelling treatment.In general, polyvinyl alcohol is thin film dipped in the solution that contains iodine or bitintability pigment, make it to adsorb iodine or bitintability pigment and after dyeing, cleaning, after in the solution that contains boric acid or borax etc., carrying out unilateral stretching, carry out dried with 3 times～7 times stretching ratio.After in the solution that contains iodine or bitintability pigment, stretching, in the solution that contains boric acid or borax etc., stretch (secondary drawing) again, carry out drying afterwards again, can improve the orientation of iodine, improve the degree of polarization characteristic, therefore desirable especially.
As described polyvinyl alcohol based polymer, for example can enumerate make the vinyl acetate polyisocyanate polyaddition laggard gone material that saponification handles, on vinyl acetate copolymerization a spot of unsaturated carboxylic acid, unsaturated sulfonic acid, anionic property monomer etc. can copolymerization the material etc. of monomer.Though the average degree of polymerization of polyvinyl alcohol based polymer is not particularly limited, can use the material of any degree of polymerization, preferred more than 1000, more preferably 2000～5000.In addition, the saponification degree of polyvinyl alcohol based polymer preferably more than 85mol%, more preferably 98～100mol%.
Though the polariscopic thickness of manufacturing is generally 5～80 μ m, be not limited thereto, in addition,, also be not particularly limited about adjusting the method for polariscopic thickness, can use usual ways such as stenter, cylinder stretching or calendering.
Polariscope is not particularly limited with bonding processing as the transparent protective film of protective seam, for example can be undertaken by the bonding agent of being made by vinyl alcohol polymer or the bonding agent of being made by the water-soluble cross-linker of vinyl alcohol polymers such as boric acid or borax, glutaraldehyde or melamine, oxalic acid at least etc.This adhesive linkage forms as the coating drying layer of aqueous solution etc., when this aqueous solution of modulation, can cooperate other adjuvant or catalyzer such as acid as required.
Diaphragm as being located at polariscopic one-sided or both sides can use the suitable transparent film.Wherein, the preferred film of making by good polymkeric substance such as the transparency or physical strength, thermal stability or moisture shieldings that uses.As this polymkeric substance, can enumerate as acetate esters resins such as cellulose triacetates, polyester resins such as polycarbonate resin, polyarylate, polyethylene terephthalate, polyolefin resin, polyvinyl alcohol resin, polyvinyl chloride resinoid, polynorbornene resinoid, polymethylmethacrylate resinoid, liquid crystal polymers etc. such as poly-imines resinoid, polysulfones resin, polyether sulfone resin, polystyrene resins, tygon, polypropylene.Film also can be used any means manufacturing in casting, rolling process, the extrusion molding.
In addition, can enumerate the spy and open the thin polymer film of recording and narrating in the 2001-343529 communique (WO01/37007), for example contain (A) and replace or/and the thermoplastic resin of substituted imido and (B) on side chain, have and replace not having on the side chain or/and the resin combination of the thermoplastic resin of unsubstituted phenyl and itrile group.As concrete example, can enumerate and contain by the contract film of resin combination of alternating copolymer that imines constitutes and acrylonitrile styrene copolymer of isobutylene and N-methyl maleic anhydride.The film that can use mixing extrusion pin by resin combination etc. to make as film.Therefore these films are because phase differential is little, photoelastic coefficient is little, can eliminate the unequal problem that the distortion by polaroid causes, in addition because moisture permeability is little, thereby also very good aspect the humidification permanance.
In addition, diaphragm does not preferably have painted.So; preferably use with Rth=[(nx+ny)/2-nz] d is (wherein; 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) phase difference value of the film thickness direction of expression for-90nm～+ diaphragm of 75nm.Phase difference value (Rth) by using this thickness direction for-90nm～+ diaphragm of 75nm, can eliminate painted (optical clouration) of the polaroid that causes by diaphragm basically.The phase difference value of thickness direction (Rth) more preferably-80nm～+ 60nm, preferred especially-70nm～+ 45nm.
Consider from aspects such as polarized light property or permanance,, especially preferably the cellulose triacetate film that saponification is handled has been carried out with alkali in the surface preferably as acetate esters resins such as cellulose triacetates.And, when the both sides at polarizing film are provided with transparent protective film, also can use the transparent protective film of making by different polymkeric substance at its tow sides.
Though the thickness of diaphragm is arbitrary value, in general,, be made as below the 500 μ m preferred 1～300 μ m, preferred especially 5～200 μ m for the purposes such as slimming of polaroid.And, when the both sides at polarizing film are provided with transparent protective film, also can use the transparent protective film of making by different polymkeric substance at its tow sides.
Only otherwise damage purpose of the present invention, transparent protective film also can be implemented that dura mater (hard-coat) is handled or antireflection is handled, with diffusion or prevent to adhere to or anti-dazzle etc. is the material of the processing of purpose.Dura mater handle to be for what prevent from the damage on polaroid surface etc. is implemented, for example can utilize that additional the grade by suitable ultraviolet curing resin modes that form, that have the sclerosis diaphragm of good hardness and slickness etc. such as silicon classes forms on the surface of transparent protective film.
On the other hand, prevent to reflect to handle and implement in order to prevent the lip-deep external reflection of light of polaroid, can be by forming preventing that reflectance coating from waiting and realize purpose in the past.In addition; prevent that adhesion process from being to implement with the bonding of adjacent layer in order to prevent; it is to implement because of ambient light hinders the identification etc. that polaroid is seen through light in the surface reflection of polaroid in order to prevent that anti-dazzle is handled; suitable modes such as the roughening mode that for example can be by utilizing sandblast mode or embossing processing mode etc. or the fit system of transparent particulate are constructed at the additional micro concavo-convex in the surface of transparent protective film and to be formed.
As described transparent particulate, for example can enumerate monox or aluminium oxide, titanium dioxide or zirconia, tin oxide or indium oxide, cadmium oxide or antimony oxide etc. that mean grain size is 0.5～20 μ m, also can use inorganic particles with electric conductivity, in addition, also can use the organic based fine particles that constitutes by crosslinked or uncrosslinked granular thing of polymkeric substance etc.The use amount of transparent particulate is generally, and per 100 mass parts transparent resins use 2～70 mass parts, preferred especially 5～50 mass parts.
In addition, the anti-glare layer as cooperating transparent particulate can adopt protective clear layer itself, perhaps can be at transparency protected laminar surface as settings such as coating layers.Anti-glare layer also can be held concurrently when being used for diffusion polarizing piece enlarges the visual angle through light diffusion layer (viewing angle compensation function etc.).And, describedly prevent the reflection horizon or prevent that adhesion layer, diffusion layer or anti-glare layer etc. also can be used as the optical layers that is made of thin slice that is provided with these layers etc., are arranged with the protective clear layer branch.
Lamellar product of the present invention can be stacked and use as blooming with various optical layers when reality is used.For this optical layers; be not particularly limited; for example can enumerate on polariscopic (face of described bonding agent coating layer is not set) of bonding described transparent protective film not; implement dura mater handle or prevent to reflect processings, spreading or to prevent to adhere to or anti-dazzle is the surface treatment of purpose, perhaps stacked is the method for the aligned liquid-crystal layer of purpose with viewing angle compensation etc.In addition, can also enumerate and paste reflector plate more than 1 layer or 2 layers or semi-transparently cross the method for optical thin film that sheet, polarizer (comprising 1/2 or 1/4 equiwavelength's sheet (λ sheet)), viewing angle compensation film etc. are used for the formation of liquid crystal indicator etc.Particularly, if lamellar product is a polaroid, then be suitable as stacked reflector plate or semi-penetration sheet and the reflection type polarizer that forms or semi-transmission type polaroid, laminated phase-difference plate and the ellipsoidal polarizing plate that forms or circular polarizing disk, stacked viewing angle compensation layer or viewing angle compensation film and polaroid that the wide-angle polaroid that forms or stacked brightness improving form with film.
Reflection type polarizer is the member that is provided with the reflection horizon on polaroid, be to be used to form the member of recognizing the liquid crystal indicator etc. of the type that the incident light reflection of side (demonstration side) shows from knowledge by making, can omit the built-in of light sources such as backlight, thereby have the advantages such as slimming of easy realization liquid crystal indicator.The formation of reflection type polarizer can utilize the suitable modes such as mode of setting up the reflection horizon of being made by metal etc. as required on the single faces at polaroid such as protective clear layer to carry out.
As the concrete example of reflection type polarizer, can enumerate on the single face that has carried out the transparent protective film that delustring (matte) handles as required, set up the paper tinsel made by reflective metal such as aluminium or vapor-deposited film and form the polaroid in reflection horizon.In addition, can also enumerate by making described transparent protective film contain particulate and form surperficial micro concavo-convex structure, and have the polaroid in the reflection horizon of micro concavo-convex structure thereon.The reflection horizon of described micro concavo-convex structure has following advantage, that is, can utilize diffuse reflection to make the incident light diffusion and prevent that directivity or outward appearance are shinny, and can suppress the inequality of light and shade.In addition, the transparent protective film that contains particulate also has following advantage, that is, spread when incident light and reflected light thereof see through it, thereby can further suppress the light and shade inequality.When formation has reflected the reflection horizon of the micro concavo-convex structure that the surperficial micro concavo-convex of transparent protective film is constructed; can utilize following method etc. to finish; for example utilize suitable mode such as evaporation mode such as vacuum evaporation mode, ion plating mode, sputter mode or plated film mode, directly set up metal on the surface of protective clear layer.
Reflector plate also can not adopt the mode on the transparent protective film that directly is attached to described polaroid, and make on the suitable film that with this transparent membrane is benchmark the uses such as reflection sheet that the reflection horizon forms is set.And; because the reflection horizon is made of metal usually; therefore from the viewpoint of the decline of the reflectivity that prevents to cause and then long term maintenance initial stage reflectivity or avoid setting up in addition the viewpoint etc. of protective seam, the more preferably mode of under the state that this reflecting surface is covered by transparent protective film or polaroid etc., using because of oxidation.
Also have, in above-mentioned, the semi-transmission type polaroid can obtain the reflection horizon of the semi-transmission types such as semi-transparent semi-reflecting lens of light transmission when making with reflective layer reflects light.The semi-transmission type polaroid is located at the rear side of liquid crystal cells usually, can form the liquid crystal indicator of following type etc., promptly, in brighter environment, use under the situation of liquid crystal indicator etc., reflection comes from knows the incident light recognize side (demonstration side) and display image, in darker environment, use the built-in light sources such as backlight at the back side that is built in the semi-transmission type polaroid to come display image.Promptly, the semi-transmission type polaroid is very useful in the formation of liquid crystal indicator of following type etc., promptly, under bright environment, can save the energy that uses light sources such as backlight, under darker environment, also can use in the formation of liquid crystal indicator of type of built-in light source very useful.
Ellipsoidal polarizing plate or the circular polarizing disk that constitutes going back the laminated phase-difference plate on the polaroid describes below.Rectilinearly polarized light being changed into elliptically polarized light or circularly polarized light, perhaps elliptically polarized light or circularly polarized light are changed into rectilinearly polarized light, perhaps change under the situation of polarization direction of rectilinearly polarized light, can use polarizer.Particularly, as rectilinearly polarized light being changed into circularly polarized light or circularly polarized light being changed into the polarizer of rectilinearly polarized light, can use so-called 1/4 wavelength sheet (being also referred to as λ/4 plates).1/2 wavelength plate (being also referred to as λ/2 plates) is generally used for changing the situation of the polarization direction of rectilinearly polarized light.
Ellipsoidal polarizing plate can be used for following situation effectively, i.e. the liquid crystal layer of compensation (preventing) supertwist nematic phase (STN) type liquid crystal indicator painted (blue or yellow) that produce because of birefringence, thus carry out the described painted white black situation that shows that do not have.In addition, it is painted that the polaroid of control three-dimensional refractive index produces in the time of can also compensating (preventing) from the picture of oblique observation liquid crystal indicator, thereby very good.Circularly polarizing plate can be used for the situation adjusted with the tone of the image of the reflection-type liquid-crystal display device of color display image effectively, but also has the function of reflecting of preventing.
As polarizer, can enumerate to macromolecular material carry out that unidirectional or two-way stretch is handled and the alignment films of the birefringent film that forms, liquid crystal polymer, with the member of the oriented layer of film support liquid crystal polymer etc.Stretch processing for example can utilize the cylinder pulling method, carry out along long gap pulling method, stenter pulling method, tubular type pulling method etc.Stretching ratio is generally about 1.1～3 times under the situation of unilateral stretching.Thickness to polarizer also is not particularly limited, and is generally 10～200 μ m, preferred 20～100 μ m.
As described macromolecular material, for example can enumerate polyvinyl alcohol (PVA), polyvinyl butyral, poly-ethylene methacrylic ether, poly-hydroxyethylmethacry,ate, hydroxyethyl cellulose, hydroxypropyl cellulose, methylcellulose, polycarbonate, polyarylate, polysulfones, polyethylene terephthalate, PEN, polyethersulfone, polyphenylene sulfide, polyphenylene oxide, polyene propyl group sulfone, polyvinyl alcohol (PVA), polyamide, polyimide, polyolefin, polyvinyl chloride, cellulosic polymer or their two metaclass, the various multipolymers of three metaclass, graft copolymer, mix polymers etc.These macromolecular materials can wait by stretching becomes orientation thing (oriented film).
As described liquid crystal polymer, for example can enumerate the backbone chain type or the various polymkeric substance of side chain type that on the main chain of polymkeric substance or side chain, have imported the linearity atomic group (mesogene) of the conjugacy of giving liquid crystal aligning.Concrete example as the backbone chain type liquid crystal polymkeric substance, can enumerate and have the polymkeric substance that combines the structure of above-mentioned linearity atomic group on the spacer portion of bendability giving, for example to the polyesters liquid-crystalline polymer of row orientation, discoid polymkeric substance or cholesteric polymers etc.Concrete example as the side chain type liquid crystal polymkeric substance, can enumerate following compound etc., promptly, with polysiloxane, polyacrylate, polymethacrylate or poly-malonate is main chain backbone, the spacer portion that constitutes across the atomic group by conjugacy as side chain and having by the above-mentioned straight line atom regiment headquarters that gives that para-oriented ring shape compound unit to the row orientation constitutes.These liquid crystal polymers are handled by the following method, promptly, material after carrying out friction treatment, oblique evaporation for the surface that is formed on films such as polyimide on the glass plate or polyvinyl alcohol (PVA) on the orientation process face of oxide materials etc., sprawl the solution of liquid-crystalline polymer and heat-treat.
Polarizer can be that for example various wavelength plates or the be used to material that compensates the painted or visual angle that the birefringence by liquid crystal layer causes etc. etc. has the material corresponding to the suitable phase differential of application target, also can be stacked more than 2 kinds polarizer and controlled the material of optical characteristics such as phase differential.
Compensation visual angle film is also to make image seem more clearly, be used to enlarge the film at visual angle under the situation of the direction that tilts a little observation liquid crystal display picture that is not orthogonal to picture.As this kind viewing angle compensation polarizer, for example by the oriented film of phase-contrast film, liquid crystal polymer etc. or transparent base upper support the material etc. of oriented layer such as liquid crystal polymer constitute.Usually unilateral stretching, birefringent polymer film have been implemented as what polarizer used along its face direction, relative therewith, as the polarizer that is used as the viewing angle compensation film, can use along its face direction be implemented the birefringent thin polymer film of having of two-way stretch, the refractive index of the control thickness direction that also has been stretched by unidirectional stretching and along its thickness direction along its face direction have biaxially oriented films such as birefringent polymkeric substance or picture tilted alignment film etc.As the tilted alignment film, for example can enumerate behind the bonding heat shrink films on the thin polymer film under effect because of the convergent force that adds thermosetting, thin polymer film has been carried out stretch processing or/and the material of shrink process, make material that the liquid crystal polymer tilted alignment forms etc.As the starting material polymkeric substance of polarizer can use with above-mentioned polarizer in the polymer phase that illustrates with polymkeric substance, can use to prevent that the knowledge that forms based on the phase differential that is caused by liquid crystal cells from recognizing the painted grade that variation was brought at angle or enlarging and know the suitable polymer blend as purpose such as the good visual angle of degree of recognizing.
In addition, from realize knowing the viewpoint at the good wide visual angle of degree of recognizing, can preferably use the optical compensation polarizer of the optical anisotropic layer that constitutes by the tilted alignment layer of the oriented layer of liquid crystal polymer, particularly discoid liquid crystal polymer with the cellulose triacetate film support.
Polaroid and the film adhered polaroid that together forms of brightness improving are located at usually the back side one side of liquid crystal cells.The brightness improving film is the film that shows below characteristic, that is, when because of the backlight of liquid crystal indicator etc. or from reflection of rear side etc., when natural light incident is arranged, reflect the rectilinearly polarized light of specific polarizing axis or the circularly polarized light of specific direction, and make other light transmissions.Therefore brightness improving film and the stacked polaroid that forms of polaroid can be made the light incident from light sources such as backlights, and obtain the light that sees through of specific polarization light state, simultaneously, the light beyond the described specific polarization light state can not see through, and quilt is reflected.Be reversed in the light that reflects on this brightness improving pellicular front once more by reflection horizon of being located at its rear side etc., make it to incide once more on the brightness improving film, make its part or all light transmission as the specific polarization light state, thereby increase the light that sees through the brightness improving film, simultaneously provide the polarized light that is difficult to absorb to polariscope, can be thereby increase in the light quantity of utilization in the demonstration of liquid crystal display image etc., and can improve brightness thus.Promptly, pass polariscope and make under the situation of light incident from the rear side of liquid crystal cells with backlight etc. not using the brightness improving film, the light that has with the inconsistent polarization direction of polarizing axis of polariscope is absorbed by polariscope basically, thereby can't see through polariscope.That is, though can be different because of the characteristic of employed polariscope, about 50% light can be sponged by polariscope, and therefore, the light quantity that can utilize in the liquid crystal image demonstration etc. will reduce, and cause the image deepening.Because the brightness improving film carries out following operation repeatedly, promptly, making the light with the polarization direction that can be absorbed by polariscope is not to incide on the polariscope, but such light is reflected on the brightness improving film, and then finish counter-rotating by reflection horizon of being located at its rear side etc., light is incided on the brightness improving film once more, like this, the brightness improving film only makes in the light of the two reflection and counter-rotating, the polarized light that its polarization direction becomes polarization direction that can be by polariscope sees through, provide it to polariscope simultaneously, therefore can in the demonstration of the image of liquid crystal indicator, use the light of backlight effectively, thereby can make picture bright.
Also can between brightness improving film and described reflection horizon etc., diffuser plate be set.Towards described reflection horizon etc., set diffuser plate can spread the light that passes through equably by the light of the polarized light state of brightness improving film reflection, eliminates polarized light state simultaneously and becomes the nonpolarized light state.That is, diffuser plate makes polarized light return to original natural light state.Carry out following operation repeatedly, that is, and with this nonpolarized light state light directive reflection horizon that is the natural light state etc., through reflection horizon etc. and after the reflection, once more by diffuser plate and incide on the brightness improving film.Make polarized light return to the diffuser plate of original natural light state by between brightness improving film and described reflection horizon, being provided with, can be in the brightness of keeping display frame, reduce the inequality of the brightness of display frame, thereby even and bright picture can be provided.By this diffuser plate is set, can suitably increase the repeated reflection number of times of first incident light, and utilize the diffusion function of diffuser plate, bright uniformly display frame can be provided.
As described brightness improving film, for example can use: the demonstration of thin-film multilayer laminated body that dielectric multilayer film or refractive index anisotropy are different and so on send as an envoy to the rectilinearly polarized light of specific polarizing axis see through and reflect the characteristic of other light film, cholesteric liquid crystal polymer alignment films or in the film substrate upper support the demonstrating any circularly polarized light reflection that will be in left-handed or the dextrorotation of film and so on of this aligned liquid-crystal layer and film that the film etc. of the characteristic of other light transmissions is suited.
Therefore, make the brightness improving film of the type that the rectilinearly polarized light of described specific polarizing axis sees through by utilization, make this see through light and directly incide on the polaroid, can when suppressing the absorption loss that causes by polaroid, see through with being effective along the direction consistent with polarizing axis.On the other hand, utilize the brightness improving film that makes the type that circularly polarized light sees through of cholesteric and so on, though light is incided on the polariscope, but, consider from suppressing the absorption loss this point, preferably this circularly polarized light carry out rectilinearly polarized lightization, reenter and be mapped on the polaroid by polarizer.And, by using 1/4 wavelength sheet, circularly polarized light can be transformed to rectilinearly polarized light as this polarizer.
In broad wavelength coverages such as visible region, can play the polarizer of 1/4 wavelength sheet effect, for example can utilize following mode to obtain, that is, the phase separation layer that will play the phase separation layer of 1/4 wavelength sheet effect with respect to the light luminous energy of wavelength 550nm and show other phase difference characteristics for example can play the overlapping mode of the phase separation layer of 1/2 wavelength sheet effect etc.So the polarizer that is disposed between polaroid and the brightness improving film can be to be made of the phase separation layer more than 1 layer or 2 layers.
Also have, with regard to cholesteric, also can make up the material of different reflection wavelengths, constitute overlapping arrangement more than 2 layers or 3 layers, obtain member thus, thereby can obtain the circularly polarized light that sees through of broad wavelength coverage based on this at the scope internal reflection circularly polarized light of broads such as visible region.
In addition, lamellar product of the present invention (for example polaroid) is as described polarized light divergence type polaroid, can be made of the member of stacked polaroid and the optical layers more than 2 layers or 3 layers.So, also can be the reflection-type ellipsoidal polarizing plate that forms of combination described reflection type polarizer or semi-transmission type polaroid and polarizer or semi-transmission type ellipsoidal polarizing plate etc.
Can utilize at the blooming of stacked described optical layers on the polaroid that independent successively stacked mode forms in the manufacture process at liquid crystal indicator etc., but good through being laminated in advance at aspects such as quality of stability or assembly operations to the polaroid of blooming, therefore have the advantage of the manufacturing process that can improve liquid crystal indicator etc.In stacked, can use suitable adhesion means such as bond layer.When bonding described polaroid and other optical layers, their optic axis can adopt the arrangement angles that suits according to target phase difference characteristic etc.
In polaroid of the present invention or the described lamination optical component, also can be provided for and the bonding adhesive linkages of other members such as liquid crystal cells.Be not particularly limited for this adhesive linkage, can form with identical in the past suitable bonding agent with acrylic compounds etc.From preventing the foamed phenomenon that causes by moisture absorption or peel off phenomenon, prevent the warpage of the reduction of the optical characteristics that causes by thermal expansion difference etc. or liquid crystal cells and form high-quality and the aspects such as character of permanance excellent images display device are considered, the adhesive linkage of the low and excellent heat resistance of preferred hydroscopicity.In addition, can adopt by containing particulate and demonstrate adhesive linkage of light diffusing etc.Adhesive linkage is arranged on needed as required and upward gets final product, and for example, concerning the polaroid that is made of polariscope and diaphragm, on the single or double of diaphragm adhesive linkage is set as required and gets final product.
For the exposure of described adhesive linkage, contaminated in order before being provided in practicality, to prevent it, can paste barrier film and with its covering temporarily.Like this, just can prevent that it from contacting with adhesive linkage under common treatment state.As barrier film, except described thickness condition, for example can use following with identical in the past suitable material, that is, with the suitable remover of silicon class or chain alkyl class, fluorine class or molybdenum sulfide etc. plastic sheeting, rubber sheet, paper, cloth, nonwoven fabrics, net, foaming thin sheet or metal forming, their suitable thin slice bodies such as layered product have been carried out the material of coating processing as required.
Also have; in the present invention; in the polariscope or transparent protective film or blooming etc. that form above-mentioned polaroid; in addition in each layers such as adhesive linkage; also can utilize the mode of for example handling, make it to have ultraviolet absorption ability etc. with ultraviolet light absorbers such as bigcatkin willow acid esters compound or benzo phenol compound, benzotriazole compound or cyanoacrylate compound, nickel complex salt compounds.
In the formation of lamellar product of the present invention applicable to image display devices such as liquid crystal indicator, organic EL display, PDP.
Polaroid of the present invention or blooming are applicable in formation of various devices such as liquid crystal indicator etc.The formation of liquid crystal indicator can be carried out according to mode in the past.Promptly, in general, liquid crystal indicator can form by the component parts such as combination of liquid crystals unit and polaroid and blooming aptly and the illuminator that adds as required and the driving circuit of packing into, but, among the present invention, except using polaroid of the present invention or blooming this point, be not particularly limited, can carry out according to mode in the past.For liquid crystal cells, also can use for example liquid crystal cells of any type such as TN type or STN type, π type.
Can be formed on liquid crystal cells one-sided or double sided arrangements the liquid crystal indicator of polaroid or blooming, in illuminator, used the suitable liquid crystal indicators such as device of backlight or reflector plate.At this moment, polaroid of the present invention or blooming can be arranged on the one-sided or bilateral of liquid crystal cells.When polaroid or blooming were arranged on bilateral, they both can be identical materials, also can be different materials.In addition, when forming liquid crystal indicator, can be on suitable position configuration more than 1 layer or 2 layers for example diffuser plate, anti-glare layer, prevent the parts that reflectance coating, fender, prism array, lens arra thin slice, light diffusing sheet, backlight etc. are suitable.
Below Organnic electroluminescent device (organic El device) is described.In general, on transparency carrier, stack gradually transparency electrode, organic luminous layer and metal electrode in the organic El device and form luminophor (organic electroluminescent body).Here, organic luminous layer is the laminated body of various organic films, and known have: the laminated body of the laminated body of hole injection layer that is made of triphenylamine derivant etc. and the luminescent layer that is made of epipolic organic solids such as anthracenes or this kind luminescent layer and the electron injecting layer that is made of perylene derivant etc. or have the various combinations such as laminated body of these hole injection layers, luminescent layer and electron injecting layer for example.
Organic EL display carries out luminous according to following principle, promptly, by on transparency electrode and metal electrode, adding voltage, injected hole and electronics in organic luminous layer, the energy excitation fluorescent material that produces by the compound of these holes and electronics, when the fluorescent material that is excited is got back to ground state, will radiate bright dipping.Middle recombination mechanism is identical with general diode, also can infer thus, and electric current and luminous intensity demonstrate with respect to impressed voltage and follow the stronger non-linear of rectification.
In organic EL display, in order to take out the light that produces in the organic luminous layer, at least one side's electrode must be transparent, will be used as anode by the transparency electrode that tin indium oxide transparent conductive bodies such as (ITO) is made usually.On the other hand, improve luminescence efficiency in order to carry out the injection of electronics easily, it is crucial using the less material of work function in negative electrode, uses metal electrodes such as Mg-Ag, Al-Li usually.
In the organic EL display with this kind formation, organic luminous layer is that film as thin as a wafer about 10nm constitutes by thickness.So organic luminous layer is also the same with transparency electrode, light is fully seen through basically.Consequently, when not luminous from the surperficial incident of transparency carrier and see through transparency electrode and organic luminous layer and can be once more penetrating to the face side of transparency carrier at the light of metal electrode reflection, therefore, when knowing from the outside when recognizing, the display surface of organic El device is as minute surface.
In the organic EL display that comprises organic electroluminescent body as described below, can polaroid be set in the face side of transparency electrode, simultaneously between these transparency electrodes and polaroid, polarizer is set, in the above-mentioned organic electroluminescent body, be provided with transparency electrode by applying the face side that voltage carries out luminous organic luminous layer, the rear side at organic luminous layer is provided with metal electrode simultaneously.
Become the effect of polarized light because polarizer and polaroid have to make from outside incident and at the next light of metal electrode reflection, so utilize this polarized light effect to have the feasible effect that can't know the minute surface of recognizing metal electrode from the outside.Particularly, adopt 1/4 wavelength sheet to constitute polarizer, and the angle of the direction of polarized light of polaroid and polarizer is adjusted into π/4 o'clock, can cover the minute surface of metal electrode fully.
That is, the exterior light that is incident in this organic EL display has only the rectilinearly polarized light composition because of the existence of polaroid and sees through.This rectilinearly polarized light generally can be converted to elliptically polarized light by polarizer, and when polarizer be the angle of the polarization direction of 1/4 wavelength sheet and polaroid and polarizer when being π/4, will become circularly polarized light.
This circularly polarized light sees through transparency carrier, transparency electrode, organic film, reflects on metal electrode, sees through organic film, transparency electrode, transparency carrier once more, converts rectilinearly polarized light once more to by polarizer.Because therefore the direction of polarized light quadrature of this rectilinearly polarized light and polaroid can't see through polaroid.Consequently, the minute surface of metal electrode fully can be covered.
Lamellar product of the present invention (for example polaroid) goes in formation of various devices such as liquid crystal indicator etc.Liquid crystal indicator can form the device with identical in the past suitable structure of having that lamellar product of the present invention (for example polaroid) is configured in the one-sided of liquid crystal cells or infiltration type that bilateral forms or reflection-type or penetration dual-purpose type.So the liquid crystal cells that forms liquid crystal indicator can be arbitrarily, for example also can use with the liquid crystal cells of film transistor type as the driving suitable types such as liquid crystal cells of the simple matrix of representative.
In addition, when in the both sides of liquid crystal cells polaroid or optics being set, these both can be identical members, also can be mutually different members.And then, when forming liquid crystal indicator, prism array thin slice or suitable parts such as lens arra thin slice, light diffusing sheet or backlight more than 1 layer or 2 layers are set on can be in position.
The formation of＜check system 〉
With reference to the accompanying drawings the suitable embodiment of the check system of lamellar product of the present invention is described below.Fig. 1 is the figure of the mechanism of the central type slug font code of the check system of expression lamellar product.Fig. 2 is that expression is read the go forward side by side figure of mechanism of row labels of bar code in the middle of the check system.
In order to detect the surface imperfection of polaroid material N, dispose the 1st video camera row 1 and the 2nd video camera row 2.In the 1st video camera row 1, be provided with 3 ccd video camera 1a along the Width of polaroid material N, in the 2nd video camera row 2, be provided with 6 ccd video camera 2a along Width equally.The 2nd video camera row 2 are configured in the downstream side of the 1st video camera row 1, in order to carry out defects detection reliably, adopt 2 row to arrange.
The image of being obtained by these the 1 2nd video camera row 1,2 is sent to image processing part 3, and the use image processing techniques detects surface or the inner defective that is present in the polaroid material N.Image processing part 3 can be made of softwares such as image processing programs.Can certainly be with hardware structure diagram as handling part 3.Also obtain defective locations when utilizing image processing part 3 to judge whether to defective.As mentioned above, the 1 2nd video camera row 1,2 and image processing part 3 can be brought into play the function of the defects detection mechanism of the defective that can detect belt flake shape goods.Determining defects algorithm when in addition, utilizing image processing program to carry out can adopt known algorithm.
Printer 6 (being equivalent to defect record mechanism) is an ink-jet printer, when finding to have defective after being handled by image processing part 3, at the Width end of polaroid material N (on the sheet plane) type slug font code B.And printer 6 also can use the equipment beyond the ink jet type.Printer driver section 5 drives printer 6 according to the instruction from systems control division 4.That is, when detecting defective, the positional information of this defective is printed (record) with the shape of bar code when handling by image processing part 3.
Among Fig. 1, represent defective, utilize the information of the distance L of bar code B record from the Width end to defective locations with K.Though bar code B is amplified demonstration, also printing with numerical value (0815) at the downside of bar code B has range information.This numerical value is the distance L value with the mm unit representation.Among Fig. 1, though draw defective K bigger,, be the defective of the size that can't with the naked eye confirm mostly in the reality.By bar code B and numeral are printed together, can with the naked eye confirm defective locations.Bar code B is printed on the Width end, but with regard to the print position of the bar code B on the throughput direction, the phase place of its print position on throughput direction is identical with defective locations.So,, just can find to be present in the defective on the distance and position that is write down if search from the printing front position broad ways of bar code B.
The polaroid material N of having printed bar code B is wound into the form of reel 10 and keeping.The printing of bar code B is to carry out in the Width end, is printed on the final not position as the goods use.So, be wound into reel 10 even will print the polaroid material N of bar code B, can defective be extended to other normal zone because of the expansion of bar code B print position yet.
The conveying of polaroid material N utilizes conveying cylinder to carry out, and can dispose conveying cylinder on suitable position along transport path.Utilize this conveying cylinder etc., can constitute the mechanism that the polaroid material N is wound into reel 10.In addition, also be provided with the rotary encoder (not shown) of interlock in the conveying of polaroid material N, thus can be so that obtain the time of image and by the time synchronized of printer 6 type slug font codes by each video camera row 1,2.
Utilize Fig. 2 that the formation of the system that reads bar code is described below.Utilize conveying cylinder 11 exhaustion mechanisms such as grade, successively the polaroid material N is pulled out from reel 10.Bar code reader 7 (being equivalent to positional information testing agency) reads the bar code B of the Width end that is printed on the polaroid material N.The bar code signal that is read by bar code reader 7 is sent to bar code analysis unit 12.Concentrator marker 8 (being equivalent to mark mechanism) carries out mark M according to the positional information that is recorded on the bar code B at defective locations.Width along the polaroid material N disposes a plurality of concentrator markers 8, only makes and 8 actions of defective locations corresponding identification device.Concentrator marker drive division 9 drives the concentrator marker 8 that is positioned at selecteed position according to the instruction of systems control division 4, makes it to carry out mark.Mark M is the processing that defective locations K is carried out, with regard to the shape of mark M, so long as no matter the shape that can discern with the naked eye is that what kind of shape size can adopt.Mark also can utilize by cutter and add that the suitable labeling methods such as method of scar mark carry out except the printing that utilizes printing ink and carry out.
Though not expression also is provided with one group of bar code reader on the end of a raw-material opposite side in Fig. 2.This is because when these starting material were rolled odd number time on the way, bar code will be moved into an opposite side.And, at this moment because defective is not the front end that is present in bar code, but from end on the position of Width, therefore should cut the laggard row labels of amount of the length that equals bar code in advance.
At the downstream side of concentrator marker 8, be provided with not shown blanking apparatus (mechanism), determine each polaroid 20 of the form with end article from the polaroid material N upper punch of band shape.In the middle of the polaroid 20 that is punched out,,, therefore in checking operation, remove owing to can't use as goods for the part of having stamped mark M.By changing the blanking die of blanking apparatus, polaroid 20 that can the stamping-out all size.That is, can obtain the polaroid 20 of all size from identical polaroid material N.So, shown in explanation among Fig. 1, after in advance the polaroid material N being checked, just can be wound into reel 10 and take care of.
The present invention adopts following formation,, utilizes the rotary encoder with the conveying action interlock of polaroid material N that is, makes to be read the time of bar code and carried out the time synchronized of mark by concentrator marker 8 by bar code reader 7.
The action of＜system 〉
The process flow diagram that utilizes Fig. 3 below describes the action of the system shown in Fig. 1,2.At first, by on the two sides of PVA thin slice, pasting the TAC film, produce polaroid starting material (#1) continuously.The polaroid material N is carried with certain speed along the conveying cylinder of transport path configuration.Utilize the 1st video camera row 1 and the 2nd video camera row 2 to obtain the image of polaroid material N, be sent to image processing part 3 (#3).3 pairs of view data that obtained of image processing part are carried out Flame Image Process and parsing, judge whether to have defective (#5).When detecting defective, drive printer 6, carry out the printing (#7,9,11) of bar code.In addition, in type slug font code B, also print numeral.After the printing of having carried out bar code B, the polaroid material N is wound into reel 10 and takes care of (#13).
When stamping-out on the polaroid material N during, carry out with following order as the polaroid of goods.At first, pull out and carry the polaroid material N successively from reel 10.Utilize bar code reader 7 to detect whether printed bar code B (#17).Print when bar code is arranged when detecting, it is read, bar code signal is delivered to bar code analysis unit 12 (#19).Bar code analysis unit 12 is resolved bar code, reads defective locations.Make concentrator marker 8 actions, carry out mark (#23) at defective locations corresponding to this defective locations.When by behind the position of concentrator marker 8, utilize the blanking apparatus stamping-out to go out each polaroid 20 (#25).In the middle of the polaroid 20 that is punched, will carry out the part of mark and remove from production line.
For the time of removing bad polaroid 20, can set aptly from production line.For example, on the position that each polaroid 20 is taken out, bar code reader is set also, when detecting bar code, utilizes hummer or LED to show, machine is temporarily stopped.But LED broad ways configuration side by side is a plurality of, and only lights the locational LED that has defective.The operator only will be positioned at the locational polaroid taking-up that LED lights, and start machine once more.So just can only make normal polaroid flow to subsequent processing.
In addition, also can adopt the structure of utilizing machine only bad polaroid automatically to be discharged outside production line.In addition, also can have under the situation of defective, this polaroid not carried out the stamping-out operation of blanking apparatus.
＜with other the comparison of mode
Defect record method of the present invention and other method are compared.Fig. 4 is the figure that other method is carried out simple declaration.(A) be to make the method that on paper, shows by the detected defective locations of ccd video camera with the ground diagram form.(B) be that positional information with defective is recorded in the method on the pen recorders such as paper or flexible disk.(C) be method at the raw-material end of polaroid adhesive label.(D) be method at the raw-material defective locations adhesive label of polaroid.(E) be the method for the raw-material defective locations of polaroid being carried out mark.And described any one method all is wound into reel and keeping with the polaroid starting material after having write down defect information.Evaluation result is illustrated in the table 1.
[table 1]
| Assessment item | The present invention | (A) | (B) | (C) | (D) | (E) |
| Because of playing the damage that trace causes to the certified products part | ○ | ○ | ○ | ○ | × | × |
| Reduce because of excessively detecting the stock utilization that causes | ○ | ○ | ○ | ○ | ○ | × |
| The mark position precision | ○ | × | × | △ | ○ | ○ |
| Mechanical fault/maintenance | ○ | ○ | ○ | × | × | ○ |
By table 1 as seen, method of the present invention is better than other method.Method (A) is represented with the ground diagram form on the paper of medium as other, is difficult to know where defective locations is positioned at.Method (B) also is like this.In addition, in the time of on being recorded in the medium different, be easy to produce error (error of throughput direction) with the polaroid starting material.This is because the polaroid starting material are easy to take place to stretch etc. during being transferred.So, just having problem aspect the precision of the defective locations that is recorded.Method (C) can't know defective is present on which position on the Width.In addition, might produce the stickup mistake of label.Method (D) can produce on the normal region and beat trace after being wound into reel.Method (E) also is like this.Method of the present invention all is excellent in whole assessment items.
＜other embodiment 〉
(1) in the present embodiment, being made as 2 row though will be used to obtain the video camera row of the raw-material image of polaroid, being not limited thereto, both can be 1 row, also can be 3 be listed as more than.In addition, can also suitably set the platform number of the ccd video camera of broad ways configuration.In addition, defects detection mechanism can not be a ccd video camera also, can adopt the sensor of other types.The image of being taken by ccd video camera both can be a reflected light image, also can be transmitted light images.When adopting transmitted light images, at the rear side configuration light source of thin slice, at the face side configuration ccd video camera of thin slice.
(2) in the present embodiment,, be not limited thereto though use the bar code record position information.Also can print with the form beyond the bar code.When writing down, also can not carry out the printing of numeral with bar code.Bar code also can not be 1 dimension, and adopts 2 dimension bar codes.In addition, as the information that is recorded in the bar code, also record position information not only, also other any information such as date made in the combination record.When writing down with range information, the unit of distance also can use the unit beyond the mm.
(3) in the present embodiment, though enumerated polaroid as the example of lamellar product,, be not limited thereto.
Claims (17)
1. the inspection method of a lamellar product is characterized in that, has:
Detect the defective in the banded lamellar product operation,
With the positional information of the described defective that is detected be recorded in the Width end of lamellar product operation,
With the lamellar product that records the band shape of described positional information be wound into reel operation,
From described reel pull out banded lamellar product operation,
Detect the described positional information of the Width end that is recorded in lamellar product operation,
According to the described positional information that is detected the operation of the enterprising row labels of defective locations and
After carrying out this mark, go out the operation of each lamellar product from the lamellar product stamping-out of band shape.
2. the inspection method of lamellar product according to claim 1 is characterized in that, as described positional information, and the range information between record Width end and defective locations.
3. the inspection method of lamellar product according to claim 1 is characterized in that, described positional information is by the form record with bar code.
4. the inspection method of lamellar product according to claim 1 is characterized in that, as described positional information, with the range information between bar code and two kinds of form record Width ends of numeral and defective locations.
5. the inspection method of a lamellar product is characterized in that, has:
The operation that the lamellar product that is wound into the band shape of reel is pulled out; Detect the operation of positional information of the defective of the Width end that is recorded in lamellar product; According to the described positional information that is detected, in the operation of the enterprising row labels of defective locations; And the operation that after carrying out this mark, goes out each lamellar product from the lamellar product stamping-out of band shape.
6. the inspection method of lamellar product according to claim 5 is characterized in that, as described positional information, and the range information between record Width end and defective locations.
7. the inspection method of lamellar product according to claim 5 is characterized in that, described positional information is by the form record with bar code.
8. the inspection method of lamellar product according to claim 5 is characterized in that, as described positional information, with the range information between bar code and two kinds of form record Width ends of numeral and defective locations.
9. the check system of a lamellar product is characterized in that, has:
Detect the defects detection mechanism of the defective of banded lamellar product;
The positional information of the described defective that is detected is recorded in the defect record mechanism of the Width end of lamellar product;
The lamellar product that records the band shape of described positional information is wound into the mechanism of reel;
Pull out the mechanism of banded lamellar product from described reel;
Detect the positional information testing agency of the described positional information of the Width end that is recorded in lamellar product;
According to the described positional information that is detected, carry out the mark mechanism of mark at defective locations; And
After carrying out this mark, go out the stamping-out mechanism of each lamellar product from the lamellar product stamping-out of band shape.
10. the check system of lamellar product according to claim 9 is characterized in that, described positional information is by the form record with bar code, and described positional information testing agency is a bar code reader.
11. the check system of a lamellar product is characterized in that, has
The mechanism that the lamellar product that is wound into the band shape of reel is pulled out;
Detect the positional information testing agency of positional information of the defective of the Width end that is recorded in lamellar product;
According to the described positional information that is detected, carry out the mark mechanism of mark at defective locations; And
After carrying out this mark, go out the stamping-out mechanism of each lamellar product from the lamellar product stamping-out of band shape.
12. the check system of lamellar product according to claim 11 is characterized in that, described positional information is by the form record with bar code, and described positional information testing agency is a bar code reader.
13. the lamellar product of a band shape is characterized in that, is the lamellar product of the band shape checked with the described inspection method of claim 1, and is after the positional information of the defective that will be detected is recorded on the Width end, is wound into reel and forms.
14. lamellar product, it is characterized in that, it is the lamellar product of checking with the described inspection method of claim 1, and be according to the positional information of the Width end that is recorded in banded lamellar product after defective locations carries out mark, from described belt flake shape goods respectively stamping-out go out to form.
15. a lamellar product is characterized in that, stacked at least 1 layer of optical layers forms on the described lamellar product of claim 14.
16. an image display device is characterized in that, has the described lamellar product of claim 14.
17. an image display device is characterized in that, has the described lamellar product of claim 15.
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| CN109540797A (en) * | 2018-12-21 | 2019-03-29 | 东华大学 | The reflective measuring device and method of fibre bundle arrangement uniformity and breaking morphology |
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| JP2007093411A (en) * | 2005-09-29 | 2007-04-12 | Olympus Corp | Substrate inspection apparatus |
| KR100788734B1 (en) * | 2005-12-05 | 2008-01-02 | 에버테크노 주식회사 | Polarizing Film Inspecting Apparatus and Method |
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2004
- 2004-06-30 KR KR1020040050014A patent/KR20050013491A/en active Search and Examination
- 2004-07-26 TW TW093122272A patent/TW200510710A/en not_active IP Right Cessation
- 2004-07-28 CN CNB2004100587110A patent/CN100476414C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540797A (en) * | 2018-12-21 | 2019-03-29 | 东华大学 | The reflective measuring device and method of fibre bundle arrangement uniformity and breaking morphology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1576828A (en) | 2005-02-09 |
| KR20050013491A (en) | 2005-02-04 |
| TW200510710A (en) | 2005-03-16 |
| TWI328112B (en) | 2010-08-01 |
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