CN100494257C - Production method of film laminates and production apparatus used therein - Google Patents
Production method of film laminates and production apparatus used therein Download PDFInfo
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- CN100494257C CN100494257C CNB2005101068271A CN200510106827A CN100494257C CN 100494257 C CN100494257 C CN 100494257C CN B2005101068271 A CNB2005101068271 A CN B2005101068271A CN 200510106827 A CN200510106827 A CN 200510106827A CN 100494257 C CN100494257 C CN 100494257C
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- film
- glue mucus
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- polaroid
- mucus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Fluid Mechanics (AREA)
- Polarising Elements (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The manufacturing process relates to a manufacturing of a film laminate in which at least one side of the film 1 is provided with another film 2. The process comprises the steps of arranging the film 2 on at least one side of the film 1, feeding an adhesive liquid to the laminating part of the film 1 and film 2, at the same time feeding a liquid countering the adhesive liquid flowing toward at least one end of the film 1 from at least one end of the film 1 and laminating the film 1 and film 2 by pressing them. To provide a manufacturing process of film laminates by which the leakage of an adhesive liquid from the edge of the laminates in laminating one film to the other is prevented without solidifying the adhesive, a manufacturing apparatus used for the manufacturing process, a film laminate obtained by the manufacturing process and an optical film and an image display device provided with the film.
Description
Technical field
The present invention relates to a kind of by glue mucus the manufacture method of the film laminates of other film, the manufacturing installation that uses in the method are set at least one face of film, the film laminates that obtains by this manufacture method, the polaroid, the optical thin film that possesses this polaroid and the image display device that obtain by this manufacture method.
Background technology
Past, in applying method by the film of the glue mucus that is called tackiness agent or tackiness agent, the method (for example with reference to patent documentation 1) that is usually included in the method for fitting after the coating glue mucus on the film or glue mucus is provided between a pair of film and fits by press-connection machine structure such as between pair of rolls.When carrying out such applying, under the situation of using the low glue mucus of viscosity, exist glue mucus from the film end overflow or the inner face of outflow, glue mucus spreads and the film that causes and the pollution problems of device.
Relative therewith; in above-mentioned patent documentation 1; under the situation of the feed rate surplus of the tackiness agent liquid that provides between polariscope and the protective film, point out that tackiness agent liquid unnecessary under the effect of roller pressure flows out from the left and right sides of protective film and pollutes roller or protective film.So; in following patent documentation 1; following method is disclosed: by from least one end of the width of protective film to width central part injection air, thereby form the air weir in the width end of protective film, assemble tackiness agent liquid by this weir to the width central part.
But in aforesaid method, owing to be to make particularly tackiness agent liquid drying, the curing of end by injection air, also there are the uneven problem points that becomes easily on this basis in can not be adhesively fixed fully polariscope and protective film.
In addition, also disclose with the attraction mouth that is arranged on the protective film end and attract to remove by the weir of air in the method for the unnecessary tackiness agent liquid of width central part accumulative.Attract inner setting of mouth to give water nozzle at this, the attraction atretostomia that the curing of tackiness agent liquid is caused from the water that provides to water nozzle can not take place.
But, attract in the mouth owing to being arranged on to water nozzle, so its complex structure when clearing up or repairing to water nozzle, need be put into cleaning tool the attraction mouth, perhaps need to be retracted to the outside that attracts mouth to water nozzle.Therefore, operation is loaded down with trivial details.
In addition, give water nozzle, the attraction interval that attracts in the mouth also can occur dwindling and the problem that magnetism reduces by in the attraction mouth, being provided with.And then, can not successfully attract from disturbing attracting the inner tackiness agent liquid that attracts of mouth for the effusive water of water nozzle.
In addition, as mentioned above, the problem that produces during from the end injection air is not only limited to the method at the above-mentioned patent documentation 1 of polariscopic two sides applying protective film, can produce under the situation of each face of fitting by previous methods yet.
Patent documentation 1: the spy opens flat 11-No. 179871 communiques
Summary of the invention
The present invention's in view of the above problems invention just; its purpose is to provide a kind of manufacture method of film laminates, it is characterized in that, when attaching film; for example when applying polariscope and protective film, can prevent that glue mucus from spilling from binding face not making under the glue mucus solidified situation.In addition, its purpose also is to provide a kind of and is easy to clear up or repair and can be at the manufacturing installation that does not make the film laminates that prevents under the glue mucus solidified situation that glue mucus from spilling from binding face.And then its purpose also is to provide the film laminates that obtains by above-mentioned manufacture method, can utilizes the polaroid to the end, the optical thin film that possesses this polaroid and image display device.
The inventor etc. are in order to solve above-mentioned problem points in the past, and the film laminates that obtains to the manufacture method of film laminates, the manufacturing installation that uses in the method, by this manufacture method, the polaroid, the optical thin film that possesses this polaroid and the image display device that obtain by this manufacture method are concentrated on studies.It found that by following structure can solve above-mentioned problem, thereby has finished the present invention.
Promptly, in order to solve above-mentioned problem, the manufacture method of the film laminates among the present invention, it is the manufacture method that the film laminates of other film is set at least one face of film, it is characterized in that, other film of configuration at least one face of above-mentioned film, fitting part to above-mentioned film and other film provides glue mucus, and, on one side provide liquid, on one side by crimping fit above-mentioned film and other film to putting up a resistance at least one end mobile glue mucus of film from least one end of film.
If be aforesaid method, for will owing to provide the flowing fluid that it is put up a resistance, spilling from the end of film to the effusive glue mucus of at least one end of film so can prevent glue mucus.Consequently, for example can prevent to be used for the fit body such as roller of attaching film and other film or other film etc. is polluted by glue mucus.In addition, owing to prevent spilling of glue mucus, so make glue mucus dry and solidify can be the time as injection air by liquid.Like this, can make be adhesively fixed film and other film infalliblely film laminates.
Before fit above-mentioned film and other film, preferred attraction is removed will be to the effusive glue mucus of at least one end of film or the glue mucus that is diluted by aforesaid liquid.
By aforesaid method, attract to remove the unnecessary glue mucus that does not offer applying, so can fit the two with the glue mucus of the required optimal dose of attaching film and other film.Consequently, can make uniform film laminates in the face.In addition, the attraction of glue mucus is removed and can be carried out on liquid dilution limit, limit, and glue mucus can not solidify in this case.Therefore, attract to remove to become easy.
As above-mentioned other film, using greatlyyer and have at width under the situation of film of surplus long portion than above-mentioned thin-film width, preferably in the formation scope of surplus long portion, carry out providing of aforesaid liquid.
If be aforesaid method, by providing of liquid is provided in the scope of surplus long portion, the glue mucus of applying that can prevent to offer film and other film is by liquid diluting.
As above-mentioned other film, using greatlyyer and have at width under the situation of film of surplus long portion than above-mentioned thin-film width, preferably in the formation scope of surplus long portion, carry out above-mentioned glue mucus or the attraction of the glue mucus that diluted by aforesaid liquid is removed.
If be aforesaid method, with liquid the unnecessary glue mucus that does not offer applying is diluted, in the scope of surplus long portion, attract to remove simultaneously, so even also can be adhesively fixed with other film infalliblely in the end of film.
As aforesaid liquid, preferably make above-mentioned glue mucus dissolved liquid.
When preventing that the liquid that glue mucus spills from being when dissolving the liquid of glue mucus, can dilute the glue mucus that does not offer applying by liquid.Consequently, when removing unnecessary glue mucus, can suppress this glue mucus and solidify and easily remove.
Preferably use polariscope as above-mentioned film, and preferably use protective film as above-mentioned other film.
Can be manufactured on the cementability aspect does not like this have inhomogeneous and the interior polaroid uniformly of face.
In addition, in order to solve above-mentioned problem, the manufacturing installation of the film laminates among the present invention, be used to be manufactured on the film laminates that is provided with other film at least one face of film, it is characterized in that, have: the fitting part of other film that disposes on above-mentioned film and at least one face at this film provides the glue mucus feed mechanism of glue mucus, provide liquid feed mechanism from least one end of film, by the fit fit body of above-mentioned film and other film of crimping to the liquid that will put up a resistance to the effusive glue mucus of at least one end from the central part of above-mentioned film.
If be above-mentioned formation, for will because the liquid feed mechanism that provides its liquid of putting up a resistance is provided, spilling from the end of other film to the effusive glue mucus of at least one end of other film so can prevent glue mucus.Consequently, for example for example can reduce as roller fit body and that be used for attaching film and other film or other film etc. and polluted by glue mucus.In addition, can prevent spilling of glue mucus,, consequently can make the film laminates that not have fluctuating so make glue mucus dry and solidify during unlike injection air by liquid.
Preferably has the attraction mechanism of removing to attracting to the effusive glue mucus of at least one end of above-mentioned film or by the glue mucus that aforesaid liquid dilutes.
By above-mentioned formation, with liquid the unnecessary glue mucus that does not offer applying is diluted, attract simultaneously to remove, so can prevent to attract mechanism can not use because of the curing of glue mucus.Therefore, as mentioned above, need in attracting mechanism, not be provided for yet the periphery of the part that attracts or inner to glue mucus dilute to water nozzle etc., remove so can improve magnetism and attract effectively.In addition, attract mechanism to be and liquid feed mechanism formation independent of each other, thus do not need complicated structure, outstanding aspect operability such as cleaning or repairing.
As above-mentioned other film, using than above-mentioned thin-film width is big and under the situation of the film that has surplus long portion on the width, the delivery section of aforesaid liquid feed mechanism is preferably placed in the formation scope of surplus long portion.
If be said structure, in the scope of surplus long portion, the glue mucus of applying that can prevent to be provided to film and other film is by liquid diluting by the delivery section being arranged to make the liquid feed mechanism.
As above-mentioned other film, using greatlyyer and have at width under the situation of film of surplus long portion than above-mentioned thin-film width, the attraction portion of preferred above-mentioned attraction mechanism is positioned at the formation scope of surplus long portion.
If be said structure, owing to be arranged to attract the attraction portion of mechanism to be positioned at the formation scope of surplus long portion, its result in the unnecessary glue mucus of liquid dilution, removes, even also can be adhesively fixed with other film in the end of film infalliblely.
Opening portion in above-mentioned attraction portion is a flat pattern in prescribed direction, and is preferred so that the approximately parallel mode of width of the flat direction of this opening direction and film is provided with attraction portion.
If be said structure, can make the fitting part of attraction portion near film and other film, can more effectively attract glue mucus and liquid.
Preferably use polariscope as above-mentioned film, and preferably use protective film as above-mentioned other film.
By said structure, can provide and to make the manufacturing installation that aspect cementability, does not have the polaroid of homogeneous in inhomogeneous and the face as film laminates.
In addition, in order to solve above-mentioned problem, film laminates among the present invention is the film laminates that is provided with other film on the one side at least of film, it is characterized in that, other film of configuration on the one side at least of above-mentioned film provides glue mucus to the fitting part of above-mentioned film and other film, and, provide liquid from least one end of other film, obtain by fit above-mentioned film and other film of crimping simultaneously putting up a resistance at least one end mobile glue mucus of other film.
The film laminates of said structure is with respect to will the flowing fluid that it is put up a resistance being provided, thereby preventing to spill and obtain from the end of other film of glue mucus at least one end mobile glue mucus of other film.That is, then be that other film etc. is not polluted by glue mucus and the film laminates that obtains, if be said structure.In addition owing to be not but prevent spilling of glue mucus by liquid by air, so in the applying of film and other film also less than the part of fitting by drying and solidified glue mucus.Thereby the film laminates of said structure does not have inhomogeneous aspect cementability, homogeneous and not fluctuating in the face.
In addition; in order to solve above-mentioned problem; polaroid among the present invention is the polaroid that protective film is set on polariscopic one side at least; it is characterized in that; configuration protection film on above-mentioned polariscopic one side at least provides glue mucus to the fitting part of above-mentioned polariscope and protective film, and; provide liquid from least one end of protective film, obtain by fit above-mentioned polariscope and protective film of extruding simultaneously putting up a resistance at least one end mobile glue mucus of protective film.
The polaroid of said structure is with respect to will providing the flowing fluid that it is put up a resistance to the effusive glue mucus of at least one end of protective film, thereby prevents that glue mucus from spilling and obtaining from the end of protective film.That is, be that protective film etc. is not polluted by glue mucus and the polaroid that obtains, if be said structure.In addition owing to be not but prevent spilling of glue mucus by liquid by air, so in the applying of film and other film also less than the part of fitting by drying and solidified glue mucus.Thereby the polaroid of said structure does not have inhomogeneous aspect cementability, homogeneous and not fluctuating in the face.
In addition; in order to solve above-mentioned problem; optical thin film among the present invention is to be laminated with 1 at least to be provided with the optical thin film that the polaroid of protective film forms on polariscopic one side at least; it is characterized in that; configuration protection film on above-mentioned polariscopic one side at least; fitting part to above-mentioned polariscope and protective film provides glue mucus; and; provide liquid from least one end of protective film, obtain by fit above-mentioned polariscope and protective film of extruding simultaneously putting up a resistance at least one end mobile glue mucus of protective film.
In addition; in order to solve above-mentioned problem; image display device among the present invention is to have the polaroid that is provided with protective film on polariscopic one side at least; perhaps be laminated with the image display device of the optical thin film that 1 this polaroid forms at least; it is characterized in that; configuration protection film on above-mentioned polariscopic one side at least; fitting part to above-mentioned polariscope and protective film provides glue mucus; and; provide liquid from least one end of protective film, obtain by fit above-mentioned polariscope and protective film of extruding simultaneously putting up a resistance at least one end mobile glue mucus of protective film.
By the mechanism of above-mentioned explanation, the present invention brings into play effect described below.
That is, the manufacture method of the film laminates in according to the present invention, owing to can prevent the glue mucus that will spill by liquid, so glue mucus can dry solidification.Consequently, being manufactured on the cementability aspect does not have the film laminates of homogeneous in inhomogeneous and the face to become possibility.
In addition, the manufacturing installation of the film laminates in according to the present invention owing to can prevent spilling of glue mucus by liquid, can not polluted by glue mucus so for example be used for the roller of attaching film and other film or other film etc.In addition, attract mechanism when liquid dilution offers the unnecessary glue mucus of applying, not attract to remove, so can prevent to attract mechanism can not use owing to the curing of glue mucus.And then, attract mechanism to be and liquid feed mechanism structure independent of each other, thus do not need complicated structure, outstanding aspect operability such as cleaning or repairing.In addition, in attracting mechanism, there is no need to be provided for the periphery of the part of this attraction or inner dilution glue mucus to water nozzle etc., remove so can improve magnetism and attract effectively.
In addition, the film laminates in according to the present invention is to prevent spilling of glue mucus by liquid on one side, the glue mucus of appropriate amount is provided to the end of film on one side, thereby with other film adhered forming, thus aspect cementability, do not have inhomogeneous, homogeneous and not rising and falling in the face.
In addition, the polaroid in according to the present invention is to prevent spilling of glue mucus by liquid on one side; glue mucus with appropriate amount is provided to polariscopic end on one side; thereby fitting with protective film forms, thus aspect cementability, do not have inhomogeneous, homogeneous and not rising and falling in the face.
In addition, the optical thin film in according to the present invention, owing to possess homogeneous in the face and not have the polaroid of fluctuating, so can be provided in optical thin film outstanding on the optical characteristics.
In addition, image display device in according to the present invention, because possess homogeneous in the face and not have fluctuating, on optical characteristics outstanding polaroid, perhaps outstanding optical thin film on optical characteristics is so can be provided in image display device outstanding on the display characteristic.
Description of drawings
Fig. 1 is the stereographic map of the manufacture method of the expression polaroid that is used to illustrate an embodiment of the invention.
Fig. 2 is the side-view that expression is used to illustrate the manufacture method of above-mentioned polaroid.
Fig. 3 is the enlarged view that the major portion of above-mentioned Fig. 2 is amplified in expression.
Fig. 4 is the mode chart of shape of the opening portion of the attraction mouth in the attraction mouth that is illustrated in the manufacturing installation of above-mentioned polaroid.
Fig. 5 is a cross section mode chart of representing the polaroid in an embodiment of the invention briefly.
Among the figure: 1-polariscope (film), 2-protective film (other film), 3-tackiness agent liquid (glue mucus); 4-roller (fit body); 5-supply mouth (liquid feed mechanism), 6-liquid, 7-supplying opening; 8-attraction mouth (attracting mechanism); 9-surplus long portion, 10-attracting mouth, 11-tackiness agent liquid is supplied with mouth (tackiness agent liquid feed mechanism); 13-tackiness agent liquid (glue mucus), 21-polaroid (film laminates).
Embodiment
Following one side is with reference to Fig. 1～Fig. 5, and one side describes an embodiment of the invention.But, omitted unwanted part in explanation, in addition, also had in order illustrated part such as explanation to be become amplify easily or dwindle.
At first, about the manufacture method of the film laminates among the present invention, be that example is carried out following explanation with the polaroid.Fig. 1 is the stereographic map of the manufacture method of the expression polaroid that is used for illustrating embodiments of the present invention.Fig. 2 is the side-view that expression is used to illustrate the manufacture method of above-mentioned polaroid.Fig. 3 is the enlarged view of the major portion of expression enlarged view 2.Fig. 4 is the mode chart of the shape of the opening portion that attracts in the attraction mouth that is illustrated in the manufacturing installation of above-mentioned polaroid mouthful.Fig. 5 is a cross section mode chart of representing the polaroid in the present embodiment briefly.
As depicted in figs. 1 and 2, at first protective film (other film) 2 is disposed at the both sides of polariscope (film) 1 respectively, becomes state with protective film 2 clamping polariscopes 1.Under this state, also transport polariscope 1 in vertical direction towards the below together with protective film 2 from the top of this figure.But, in the present invention, be not limited to the situation of conveyance polariscope 1 and protective film 2 in vertical direction, the situation of conveyance in the horizontal direction also can be used, and can change aptly as required.
Above-mentioned protective film 2 has surplus long portion 9 at width, is the big structure of width ratio polarization mirror 1.But the present invention is not limited thereto, and also can use the protective film with polariscope 1 same size.To the detailed description of polariscope 1 and protective film 2 as described later.
In the fitting part of polariscope 1 and protective film 2, supply with mouth (tackiness agent liquid feed mechanism) 11 by tackiness agent liquid glue mucus 3 is provided.Tackiness agent liquid is supplied with the two sides side that mouth 11 is disposed at polariscope 1 respectively.Supply method as glue mucus 3 is not particularly limited, and can adopt the method etc. of for example dripping.Supply position to glue mucus 3 is not particularly limited, and can suitably determine as required.For example, can be near the fitting part, glue mucus 3 drips near can central authorities from the width direction.In addition, the isolated position glue mucus 3 that drips with predetermined distance only from the fitting part that also can be on protective film 2 makes glue mucus 3 flow into fitting parts then.But in this case, protective film 2 need tilt with predetermined angular upward from horizontal direction.And then the position of dripping also can be a several position.
The glue mucus 3 that is provided to the fitting part forms liquid hold-up 12 the going up of width of polariscope 1 (perhaps protective film 2) comprehensively.Can on polariscope 1 by this liquid hold-up 12 and protective film 2, be coated with glue mucus 3 equably.
The feed rate of glue mucus 3 and feed speed etc. can be set at optimum value aptly according to the kind of the glue mucus 3 that uses or viscosity etc.
The tackiness agent that constitutes glue mucus 3 is not particularly limited, can adopts known in the past various tackiness agent.The tackiness agent that can be exemplified as polyethenol series tackiness agent, polyurethane series tackiness agent, isocyanate-based tackiness agent or constitute by above-mentioned polyethenol series tackiness agent and water-soluble cross-linkers such as boric acid, borax, glutaraldehyde, trimeric cyanamide and oxalic acid.From the viewpoint consideration best, especially preferably use polyvinyl alcohol with the cementability of polariscope 1.Here, the mean polymerisation degree of polyvinyl alcohol is preferably 1000～5000, and more preferably 1500～4000.In addition, saponification deg is preferably 90～100 moles of %.As the solvent that constitutes glue mucus 3, usually can illustration water etc.In addition, also can cooperate catalyzer such as other additive or acid as required.
In addition, as the constituent material of above-mentioned glue mucus 3, also can use tackiness agent.Tackiness agent is not particularly limited, can adopts known in the past various tackiness agents.
In addition, the viscosity of above-mentioned glue mucus is preferably the scope of 1～1000mPas, more preferably the scope of 1～100mPas.If in above-mentioned scope, glue mucus is easy to flow out to the end of protective film 2, is easy to obtain effect of the present invention.
Here, with respect to providing liquid 6 with both end sides towards the mode of the middle body of width to the both end sides mobile glue mucus 3 of protective film 2 from protective film 2.Providing of liquid 6 can use supply mouth (liquid feed mechanism) 5 to carry out.Supply with mouth 5 be disposed at respectively protective film 2 about.This is by to allow the parallel in the horizontal direction mode of polariscope 1 and protective film 2 be configured, and the fitting part is also almost parallel, thus unnecessary glue mucus 3 respectively to the left and right direction flow and carry out.But, under the situation of lopsidedness configuration, corresponding with it and the fitting part tilts perhaps under the situation of pair of rolls 4 (aftermentioned tilted configuration) at polariscope 1 and protective film 2, so glue mucus 3 is to a side flow.Thereby, in this case, only will supply with downstream side that mouth is disposed at glue mucus 3 just enough.By liquid 6 is provided, be stopped in the scope of surplus long portion 9 to the unnecessary glue mucus 3 of the both end sides mobile of protective film 2, can prevent spilling of glue mucus 3.
Need make spray volume, the ejection of liquid 6 be pressed with necessity and be limited in the mobile scope that can stop glue mucus 3.This is because when the spray volume of liquid 6 surpasses the amount that needs, and glue mucus 3 is diluted and cause the cementability reduction.In addition,, be not limited to direction, can in stoping glue mucus 3 effusive scopes, carry out various changes towards the middle body of width as the emission direction of liquid 6.
Supplying with mouth 5 here, is that to be positioned at the width inboard with its supplying opening 7 from the left and right sides end of protective film 2 be that the mode in the formation zone of surplus long portion 9 is provided with.Like this, can prevent that liquid 6 from spilling from the left and right sides of protective film 2.In addition, can prevent from liquid 6 is provided to the fitting part, prevent at the glue mucus 3 of fitting part diluted.Consequently, also can provide the glue mucus 3 of sufficient quantity at the both ends of polariscope 1, protective film 2 also can be adhesively fixed in the end of polariscope 1 infalliblely.
As aforesaid liquid 6,, just be not particularly limited so long as dissolve the material of above-mentioned tackiness agent.Specifically, can illustration methyl alcohol, alcohols such as ethanol, propyl alcohol, ketones such as acetone, ethyl methyl ketone, benzene,toluene,xylenes etc. are aromatic hydrocarbon based, organic solvent or water such as halogenated hydrocarbons such as methylene dichloride, chloroform.
In addition, as shown in Figure 3, in the manufacturing installation of present embodiment, be provided with and be used to attract to remove the attraction mouth (attracting mechanism) 8 that is helpless to polariscope 1 and the unnecessary glue mucus 3 of the applying of protective film 2.Like this, the tackiness agent liquid that can comprehensively be provided for the optimal dose of fitting equably consequently, obtains not having aspect the cementability polaroid of homogeneous in inhomogeneous and the face up to the two ends, the left and right sides of polariscope 1 in face.In addition, in more detail, attracting mouth 8 is not to attract unnecessary glue mucus 3 own, but attracts to be in the glue mucus 3 by the state after liquid 6 dilutions.This is because if attract glue mucus 3 itself, can disturb carrying out smoothly of attraction, and glue mucus 3 will solidify soon and stops up and attract mouthfuls 10.
Attracting mouth 8 to be set as it here, attracts mouth 10 to be positioned at the scope of surplus long portion 9.This is in order to attract under the state that is diluted by liquid 6 at glue mucus 3.In addition, if will attract mouth 10 to be located at the inboard of the end of polariscope 1, owing to glue mucus 3 is diluted by liquid 6 in the end, so become insufficient in the end at least with the bonding of protective film 2.In addition, owing to attract mouth 8 and supply with mouth 5 separate configuration, so can make its simple structureization.Thereby cleaning or repairing become easy.
As the shape of the opening portion of above-mentioned attraction mouth 10, preferably on prescribed direction flat shape.As such shape of opening portion, for example shown in Fig. 4 (a)～4 (j), can the illustration ellipse, semicircle, rectangle, across corner carry out the rectangle of the edging processing of R shape, the rhombus of flats, the different shapes such as cloud shape of flats.In addition, preferably dispose attraction mouth 10 with the flat direction of opening portion and the mode of width almost parallel.Thus, can make to attract mouthful 10 fitting parts, can attract to remove unnecessary tackiness agent liquid 13 and liquid 6 effectively near polariscope 1 and protective film 2.
Then, polariscope 1 and protective film 2 are being introduced between the pair of rolls (fit body) 4 under the synergetic state continuously.And then, be adhesively fixed under roller pressure by polariscope between the roller 41 and protective film 2 infalliblely.Here, pair roller 4 is not particularly limited, and can adopt known in the past various rollers.But, for the outward appearance of the polaroid that makes manufacturing good, the preferred high roller of surface accuracy.In addition, the material of pair roller 4 is not particularly limited, and can be illustrated as metal or rubber etc.In addition, as fit body, except roller 4, can also use plane compression joint mechanism.
As shown in Figure 5, the polaroid (film laminates) 21 in the present embodiment that obtains by aforesaid method is stacked guard films 2 and constituting respectively on the two sides of polariscope 1.In addition, both ends have protective film 2 each other at the bonding structure of surplus long portion 9.
Under the situation of above-mentioned hydrophilic macromolecule that stretches, preferably total stretching ratio is set at 3 times～7 times scope, more preferably be set at 4 times～6 times scope.This be because total stretching ratio less than 3 times situation under, be difficult to obtain the polaroid of high degree of polarization, surpassing under 7 times the situation, film has the trend of easy generation fracture.Here, hydrophilic macromolecule can all stretch up to the scope of total stretching ratio at 3 times to 7 times in the operations lentamente in swelling, dyeing, stretching, crosslinked etc., also can only in any 1 operation, stretch, can also in same operation, stretch several times.In addition, the thickness to polariscope 1 is not particularly limited.But, be generally about 5～80 μ m.
As the material that forms above-mentioned protective film 2, the preferred outstanding polymeric films such as the transparency, physical strength, thermostability, isotropy that use.Specifically, can be exemplified as polyester based polymers such as polyethylene terephthalate or PEN; Polystyrene or vinyl cyanide-styrol copolymer styrenics such as (AS resins); Cellulose-based polymkeric substance such as diacetyl cellulose or triacetyl cellulose; The polyethersulfone based polymer; The polycarbonate based polymer; Polyamide-based polymkeric substance; The polyimide based polymer; The polyolefin polymkeric substance; Perhaps acrylic acid polymer such as polymethylmethacrylate etc.In addition, can also be exemplified as the polyolefin polymkeric substance of polyethylene, polypropylene, polyolefine, ethene-propylene copolymer and so on ring-type or norbornylene structure; Vinyl chloride-based polymer; Acid amides such as nylon or aromatic polyamide based polymer; The imide series polymkeric substance; The sulfone based polymer; The polyethersulfone based polymer; The polyether-ether-ketone based polymer; The polyphenylene sulfide based polymer; The vinyl alcohol based polymer, the vinylidene chloride based polymer; The polyvinyl butyral acetal based polymer; Arylide (the based polymer of ア リ レ-ト); The polyoxymethylene based polymer; The epoxy based polymer; Perhaps above-mentioned mixture of polymers etc.Can also enumerate the resin of thermohardening type such as acrylic acid series, carbamate system, propenoic methyl carbamate system, epoxy system or silicone-based or ultraviolet hardening etc.
In addition, can enumerate the spy and open the polymeric film described in 2001-No. 343529 communiques (WO01/37007), as contain have on (A) side chain replace and/or not substituted imido thermoplastic resin and (B) have the resin combination of the thermoplastic resin of replacement and/or unsubstituted phenyl and itrile group on the side chain.As concrete example, can enumerate the film that contains by iso-butylene and the N-alternating copolymer of methyl maleimide formation and the resin combination of vinyl cyanide-styrol copolymer.The film that can use extrusion product by resin combination etc. to constitute as film.The phase differential of these films is little, and the photoelasticity modulus is little, so the unfavorable condition such as inhomogeneous that can eliminate that polaroid distortion causes, rate of perviousness is little in addition, so the humidification weather resistance is outstanding.
As protective film 2, phase differential is preferably as much as possible little.In addition, consider this viewpoint and polarized light characteristic and weather resistance etc., preferably use cellulose-based polymkeric substance.And then, preferred triacetyl cellulose in cellulose-based polymkeric substance.In addition, also can use the protective film 2 that contains particulate and make its surface formation micro concavo-convex structure.
In addition, the thickness of protective film 2 is preferably below the 100 μ m, more preferably below the 60 μ m.For example, under the situation that is slim polaroid, the triacetyl cellulose (TAC) about can used thickness 40 μ m.In this case, the inhibition of the present invention effect of curling is than common polaroid (TAC of thickness 80 μ m) height.This is because total thickness (thickness of polaroid) approaches, do not have elasticity, and the easier influence of moisture change to curling that is subjected to polaroid.The rate of perviousness of the preferred protective film 2 that uses is in the scope of 400～1000g/m24h.Even rate of perviousness beyond above-mentioned scope, when use has the polaroid of protective film of higher rate of perviousness, the effect height that inhibition of the present invention is curled.Rate of perviousness is be benchmark with the rate of perviousness of JIS Z0208 test (cup envelope method), and is poor with 40 ℃, 90% relative humidity, passes through area 1m in 24 hours
2The g number of water vapour of sample.
In addition, be arranged on each protective film 2 on the two sides of polariscope 1, the film that can use each free same polymer material to constitute also can use the film that is made of different polymer materialss etc.
In addition, on the face that 2 of protective films is fitted in polariscope 1 and do not fit under the situation on other face, on this other face, also can implement to form the operation of hard coat or antireflection processing, anti or with diffusion or anti-dazzle be the processing of purpose.
Implement purpose that hard coat handles and be to prevent the surface distress of polaroid etc., mode that for example can be by the curing tunicle that the additional hardness that is made of suitable uv curing resin such as acrylic acid series, silicone-based, sliding properties etc. are good on the surface of transparent protective film 2 etc. forms.In addition, implementing the purpose that antireflection handles is the outer reflection of light that prevents on the polaroid surface, can finish by forming to wait based in the past antireflective film.In addition, implementing purpose that anti handles is the adhesion that prevents with adjacent layers.
In addition; the purpose of implementing non-glare treated is to prevent that outer light from disturbing polaroid to see through the identification etc. of light in the polaroid surface reflection; for example; can give the micro concavo-convex structure to the surface of protective film 2 and form by adopting sandblast mode or the asperities mode of embossing processing mode and the suitable modes such as mode that cooperate transparent particulate.As the particulate that in the formation of above-mentioned surperficial micro concavo-convex structure, contains, for example, can use median size is that the had electroconductibility that is made of silicon-dioxide, aluminum oxide, titanium oxide, zirconium white, stannic oxide, Indium sesquioxide, Cadmium oxide, weisspiessglanz etc. inorganic of 0.5～20 μ m is particulate, the transparent particulates such as organic system particulate be made up of crosslinked or uncrosslinked polymkeric substance etc.When forming surperficial micro concavo-convex structure, the usage quantity of particulate is typically about about 2～70 weight parts preferred 5～50 weight parts with respect to the transparent resin of the formation surface micro concavo-convex structure of 100 weight parts.Antiglare layer also can be also used as the diffusion layer (visual angle expanded functionality etc.) that polaroid transmitted light diffusion is enlarged visual angle etc.
Also have, above-mentioned anti-reflection layer, antiblocking layers, hard coat, diffusion layer and antiglare layer etc. except can being set to protective film 2 self, can also as other optical functional layer and be arranged in 2 minutes with protective film.
Above-mentioned optical functional layer is not particularly limited.For example under situation about using at bonding optical functional layer on the polaroid 21, can be illustrated as phase-contrast film (comprising 1/2 or 1/4 wavelength film etc.) etc. by binder layer.These films can use more than 1 layer or 2 layers as required.For example, also can be on polaroid 21 of the present invention laminated phase-difference film, use as ellipsoidal polarizing plate or circular polarizing disk.
In addition, using the visual angle to enlarge under the situation of film as optical functional layer, thereby for example by by binder layer stacked polaroid that obtains wide visual angle on polariscope 1.
Reflection type polarizer is the polaroid that the reflecting layer is set on polaroid 21, is applied to make from the incident light reflection of identification side (demonstration side) and the reflection-type liquid-crystal display device that shows.The formation of reflection type polarizer can be by on the protective film 2 of the side opposite with a side of stacked birefringent layers, and the suitable way such as mode of setting up the reflecting layer that is made of metal etc. carry out.For example, can enumerate as required, set up the paper tinsel that constitutes by reflective metal such as aluminium or vapor-deposited film and formed the polaroid etc. in reflecting layer by on the one side of the protective film of handling through delustring etc.In addition, can also be exemplified as by suitable mode such as evaporation mode or plating mode above-mentioned protective film 2 because of containing the polaroid of setting up metallic reflector on the surperficial micro concavo-convex structure that particulate forms etc.The reflecting layer of above-mentioned micro concavo-convex structure makes incident light diffusion by diffuse-reflectance, prevents from thus to appear before one's eyes or diffuse-reflectance, has the advantage that can suppress the light and shade inequality etc.In addition, the protective film 2 that contains particulate also has when incident light and reflected light thereof see through it the advantage etc. that can further suppress the light and shade inequality by diffusion.The formation in reflecting layer of the micro concavo-convex structure of the surperficial micro concavo-convex structure of reflection protective film 2, method that for example can be by directly setting up metal on the surface of protective film 2 with suitable modes such as evaporation mode such as vacuum evaporation mode, ion plating mode and sputter mode or plating modes etc. is carried out.
In addition, the method that reflection type polarizer is directly formed on the protective film 2 of above-mentioned polaroid 21 can also be provided with the reflecting layer and form uses such as reflection sheet on the suitable film that is benchmark with this protective film 2.Also have, because the reflecting layer is made up of metal usually, so with the type of service under the state of its plane of reflection of covering such as protective film 2 or polaroid, can prevent the decline of the reflectivity that causes owing to oxidation.And then can keep initial reflectance for a long time, also can avoid with respect to the other stacked guard film 2 in reflecting layer.
In above-mentioned, the semi-transmission type polaroid can come the catoptrical reflecting layer of the semi-transmission types such as semi-transparent semi-reflecting lens of light transmission that makes simultaneously to obtain by making with the reflecting layer.The semi-transmission type polaroid is located at the rear side of liquid crystal cells usually.When in brighter environment, using this semitransparent liquid crystal display that possesses the semi-transmission type polaroid, will be outside identification side (display surface side) incident light as the display light utilization, when using in darker environment at present, the light that will come from backlight etc. uses as display light.Thereby, can reduce the consumption of electric power.
Ellipsoidal polarizing plate or the circular polarizing disk that further laminated phase-difference film on polaroid 21 is constituted describes below.Method as laminated phase-difference film on polaroid 21; can suitably use by binder layer and on polaroid 21, carry out stacked method; perhaps on the face of peeling off protective film 2, form adhesive layer again and stacked method, perhaps do not peel off protective film 2 and be provided with or adhesive layer is not set and adheres to stacked method etc.Rectilinearly polarized light being changed into elliptically polarized light or circularly polarized light, elliptically polarized light or circularly polarized light being changed into rectilinearly polarized light or changed under the situation of polarization direction of rectilinearly polarized light, can use phase-contrast film etc.Particularly, as rectilinearly polarized light being changed into circularly polarized light, circularly polarized light being changed into the phase-contrast film of rectilinearly polarized light, can use so-called 1/4 wavelength film (being also referred to as λ/4 plates).1/2 wavelength film (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 etc. effectively, the i.e. liquid crystal indicator of compensation (preventing) STN (Super Twisted Nematic) pattern painted (blue or yellow) that produce because of the double refraction of liquid crystal layer for example, thus carry out the above-mentioned painted white black situation that shows etc. 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 preferred.Circularly polarizing plate for example can be used for effectively to situation of adjusting with the tone of the image of the reflection-type liquid-crystal display device of color display image etc., but also has the function of reflecting of preventing.As the object lesson of above-mentioned phase-contrast film, can enumerate to polycarbonate, polyvinyl alcohol, polystyrene, polymethylmethacrylate, polypropylene or other polyolefine, polyarylate (film formed of the suitable polymer blend of Port リ ア リ レ-ト), polymeric amide and so on implements the oriented film of birefringent film that stretch processing forms or liquid crystalline polymers, with the film of the oriented layer of film support liquid crystalline polymers etc.Phase-contrast film can be that for example various wavelength films or the be used to material that compensates the painted or visual angle that the double refraction 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 phase-contrast film and controlled the material etc. of optical characteristics such as phase differential.
Above-mentioned in addition ellipsoidal polarizing plate or reflection-type ellipsoidal polarizing plate are by suitably combination and laminated polarizing sheet 21 or reflection type polarizer and phase-contrast film form.This class ellipsoidal polarizing plate etc. also can form by stacked respectively successively (reflection-type) polaroid and phase-contrast film in the manufacturing processed of liquid crystal indicator, to constitute the combination of (reflection-type) polaroid and phase-contrast film, and as mentioned above, be pre-formed member for optical thin films such as ellipsoidal polarizing plates, because outstanding, therefore has the advantage of the manufacturing efficient that can improve liquid crystal indicator etc. at aspects such as quality of stability and lamination operation.
Polaroid 21 and the film adhered polaroid that together forms of brightness improving being located at usually the back side one side of liquid crystal cells uses.The brightness improving film is the film that shows below characteristic, promptly, when by the backlight of liquid crystal indicator etc. or from reflection of rear side etc., when natural light incident is arranged, the rectilinearly polarized light of reflection regulation polarization axle or the circularly polarized light of prescribed direction, and make other light transmissions, therefore the polaroid that brightness improving film and polaroid 21 are laminated can make the light incident from light sources such as backlights, and the light that sees through of polarization state is stipulated in acquisition, simultaneously, light beyond the described regulation polarization state can not see through, and is reflected.And then, be reversed in the light that reflects on this brightness improving pellicular front once more by reflecting layer of being located at its rear side etc., make it to incide once more on the brightness improving film, make its part or all as the light of regulation polarization state and see through, thereby increase the light that sees through the brightness improving film, simultaneously provide the polarized light that is difficult to absorb to polariscope 1, can be thereby increase in the light quantity of utilization in the demonstration of liquid crystal image etc., and can improve brightness thus.For example, pass polariscope 1 and make under the light incident situation from the rear side of liquid crystal cells with backlight etc. not using the brightness improving film, have light with the inconsistent polarization direction of polarization axle of polariscope 1 and be polarized mirror 1 basically and absorb, thereby can't see through polariscope 1.Therefore specifically, though depend on the characteristic of employed polariscope 1, about 50% light can be polarized mirror 1 and sponge, and utilizable light quantity reduces in liquid crystal image demonstration etc., causes the image deepening.Because the brightness improving film carries out following operation repeatedly, promptly, light with the polarization direction that can be polarized mirror 1 absorption is not incided on the polariscope 1, but such light is reflected on the brightness improving film, and then make its counter-rotating by reflecting layer 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 polarized light in the light of the two reflection and counter-rotating, that its polarization direction becomes polarization direction that can be by polariscope 1 see through, and provides it to polariscope 1 simultaneously.Therefore can in the demonstration of the image of liquid crystal indicator, use the light of backlight etc. effectively, thereby can make display frame bright.
Between brightness improving film and above-mentioned reflecting layer etc., also diffuser plate can be set.Light by the polarization state of brightness improving film reflection advances to described reflecting layer etc., and set diffuser plate can spread the light that passes through equably, eliminates polarization state simultaneously and becomes unpolarized state.That is, diffuser plate makes polarized light return to original natural light state.With this unpolarized state light directive reflecting layer that is the natural light state etc., after reflections such as reflecting layer,, carry out so repeatedly 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 above-mentioned reflecting layer etc., being provided with thus, can be in the brightness of keeping display frame, reduce the demonstration inequality 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 above-mentioned brightness improving film, for example can use: the demonstration of multi-layer laminate of the film that dielectric multilayer film or specific refractory power anisotropy are different and so on send as an envoy to the rectilinearly polarized light of regulation polarization axle see through and reflect the characteristic of other light film, cholesteric liquid crystal polymer oriented film 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 above-mentioned regulation polarization axle sees through, directly incide on the polaroid 21 by making this see through light, can when suppressing the absorption loss that causes by polaroid 21, light be seen through effectively along the direction consistent with polarization axle.On the other hand, utilize the brightness improving film as cholesteric, make the type that circularly polarized light sees through.And then, suppress preferably this circularly polarized light carry out rectilinearly polarized lightization under the situation of absorption loss wanting by polarizer, reenter afterwards and be mapped on the polaroid 21.And, by using 1/4 wavelength plate, circularly polarized light can be transformed to rectilinearly polarized light as this polarizer.
In broad wavelength regions such as visible region, can play the phase-contrast film of 1/4 wavelength membrane action, 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 membrane action with respect to the light luminous energy of wavelength 550nm and show other the phase difference characteristics phase separation layer that for example can play 1/2 wavelength membrane action carries out eclipsed mode etc.
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, can obtain member thus, consequently can obtain the circularly polarized light that sees through of wide wavelength region at the wavelength region internal reflection circularly polarized light of broads such as visible region.
In addition, polaroid 21 is as above-mentioned polarized light divergence type polaroid, can be made of the member of stacked polaroid 21 and the optical functional layer more than 2 layers or 3 layers.Therefore, also can be to have made up reflection-type ellipsoidal polarizing plate that above-mentioned reflection type polarizer or semi-transmission type polaroid and phase-contrast film form or semi-transmission type ellipsoidal polarizing plate etc.
For example, when being used for transmission type liquid crystal display device, this liquid crystal indicator is between a pair of infiltration type polaroid (perhaps optical thin film) liquid crystal cells to be set and to constitute.Infiltration type polaroid and liquid crystal cells provide in the past known tackiness agent etc. by bonding.The preceding polaroid of display surface side can be identical with the rear polarizer of the rear side of liquid crystal cells, also can be different.And, when making liquid crystal indicator, can be on suitable position suitable parts such as for example diffuser plate of configuration more than 1 layer or 2 layers, antiglare layer, antireflection film, protecting sheet, prism array, lens arra thin slice, light diffusing sheet, backlight.
As the display format of liquid crystal indicator, can use TN (Twisted Nematic) pattern, STN pattern, VA (Vertical Aligned) pattern or OCB (Optically self-Compensated Birefringence) pattern etc.
In addition, polaroid 21 of the present invention or optical thin film also can be used for organic EL display.In general, organic EL display is to stack gradually transparency electrode, organic luminous layer and metal electrode and form twinkler (organic EL twinkler) on transparency carrier.Here, organic luminous layer is the duplexer of various organic films, and known have: for example duplexer of the duplexer of hole injection layer that is made of triphenylamine derivative 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 derivative etc. or the various combinations such as duplexer of these hole injection layers, luminescent layer and electron injecting layer.
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 substance that produces by the compound of these holes and electronics, when the fluorescent substance that is excited is got back to ground state, will radiate bright dipping.Recombination mechanism wherein 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, as long as at least one side's electrode is transparent just enough.Usually will use as anode by the transparency electrode that tin indium oxide (ITO) etc. is made.On the other hand, for the injection that makes electronics easily and improve luminous efficiency, it is crucial using the less material of work function on negative electrode, uses metal electrodes such as Mg-Ag, Al-Li usually.
In having the organic EL display of this formation, organic luminous layer is that film as thin as a wafer about 10nm constitutes by thickness.Therefore, organic luminous layer is also the same with transparency electrode, and light is fully seen through basically.Its result, 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 carrying out identification from the outside, the display surface of organic El device is as minute surface.
In the organic EL display that comprises organic electroluminescent body as described below, polaroid 21 can be set in the face side of transparency electrode, simultaneously between these transparency electrodes and polaroid 21, phase-contrast film 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 phase-contrast film and polaroid 21 have to make from outside incident and at the light of metal electrode reflection, so, have the feasible effect that can't pick out the minute surface of metal electrode from the outside by this polarized light effect.Particularly, adopt 1/4 wavelength film to constitute phase-contrast film and the angle of the polarization direction of polaroid 21 and phase-contrast film is adjusted into π/4 o'clock, can cover the minute surface of metal electrode fully.
That is, the exterior light that incides this organic EL display has only the rectilinearly polarized light composition because of the existence of polaroid 21 and sees through.This rectilinearly polarized light generally can be converted to elliptically polarized light by phase-contrast film, particularly when phase-contrast film be the angle of the polarization direction of 1/4 wavelength film and polaroid 21 and phase-contrast film 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 afterwards once more, converts rectilinearly polarized light once more to by phase-contrast film.Because therefore the polarization direction quadrature of this rectilinearly polarized light and polaroid 21 can't see through polaroid 21.Its result can be covered the minute surface of metal electrode fully.
(other item)
In the above description, preferred forms of the present invention is illustrated.But the present invention is not limited to this embodiment, can with the scope of technical scheme of the present invention in carry out various changes in the consistent in fact scope of the technological thought put down in writing.
That is, in the present embodiment, as Fig. 1～shown in Figure 3, to about respectively configuration supply with mouth 5 and attract mouth 8 each mode of 1 to be illustrated.But, in the present invention, to supplying with mouth 5 and attracting the number of mouth 8 to be not limited to this.For example, also can be at protective film 2 each side dispose 2 or a plurality of more than it.
Claims (11)
1. the manufacture method of a film laminates is the manufacture method that the film laminates of other film is set at least one face of film, it is characterized in that,
Other film of configuration at least one face of described film,
Fitting part to described film and other film provides glue mucus, and, provide will putting up a resistance and make glue mucus dissolved liquid from least one end of film at least one end mobile glue mucus of film,
Simultaneously by crimping fit described film and described other film, the width of described other film is bigger and have surplus long portion at width than described thin-film width.
2. the manufacture method of film laminates according to claim 1 is characterized in that,
Before fit described film and other film, attracting to remove will be to the effusive glue mucus of at least one end of film or by the glue mucus of described liquid diluting.
3. the manufacture method of film laminates according to claim 1 is characterized in that,
The supply of described liquid is carried out in the formation scope of surplus long portion.
4. the manufacture method of film laminates according to claim 2 is characterized in that,
In the formation scope of surplus long portion, carry out described glue mucus or removed by the attraction of the glue mucus of described liquid diluting.
5. the manufacture method of film laminates according to claim 1 is characterized in that,
As described film, use polariscope; And, use protective film as described other film.
6. the manufacturing installation of a film laminates is to be used to be manufactured on the manufacturing installation that the film laminates of other films is set at least one face of film, it is characterized in that having:
The fitting part of other film that disposes on described film and at least one face at this film provides the glue mucus feed mechanism of glue mucus,
From at least one end of film provide to will from the central part of described film to the effusive glue mucus of at least one end put up a resistance and make glue mucus dissolved liquid the liquid feed mechanism and
By the crimping described film and bigger and have a fit body of other film of surplus long portion at width of fitting than described thin-film width.
7. the manufacturing installation of film laminates according to claim 6 is characterized in that,
Have that attract to remove will be to the effusive glue mucus of at least one end of described film or by the attraction mechanism of the glue mucus of described liquid diluting.
8. the manufacturing installation of film laminates according to claim 6 is characterized in that,
The delivery site of described liquid feed mechanism is in the formation scope of surplus long portion.
9. the manufacturing installation of film laminates according to claim 7 is characterized in that,
The attraction portion of described attraction mechanism is positioned at the formation scope of surplus long portion.
10. the manufacturing installation of film laminates according to claim 9 is characterized in that,
Opening portion in described attraction portion is a flat pattern on prescribed direction, attraction portion is set and makes the flat direction of this opening portion and the width almost parallel of film.
11. the manufacturing installation of film laminates according to claim 6 is characterized in that,
As described film, use polariscope; And, use protective film as described other film.
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| JP2004279883A JP4335773B2 (en) | 2004-09-27 | 2004-09-27 | Film laminate manufacturing method and manufacturing apparatus used therefor |
| JP2004279883 | 2004-09-27 |
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| JP2019133049A (en) | 2018-02-01 | 2019-08-08 | 日東電工株式会社 | Optical laminate with surface protective film |
| JP7273472B2 (en) * | 2018-08-27 | 2023-05-15 | 日東電工株式会社 | laminate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3681343B2 (en) * | 2001-06-07 | 2005-08-10 | 日東電工株式会社 | LAMINATED OPTICAL FILM, ITS MANUFACTURING METHOD, AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME |
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2004
- 2004-09-27 JP JP2004279883A patent/JP4335773B2/en active Active
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2005
- 2005-08-11 TW TW094127266A patent/TWI311574B/en not_active IP Right Cessation
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108349232A (en) * | 2015-10-22 | 2018-07-31 | 住友化学株式会社 | The manufacturing method of laminated optical film |
| CN108349232B (en) * | 2015-10-22 | 2020-09-25 | 住友化学株式会社 | Method for manufacturing laminated optical film |
| CN108700695A (en) * | 2016-02-25 | 2018-10-23 | 住友化学株式会社 | The manufacturing method of laminated optical film |
| CN108700695B (en) * | 2016-02-25 | 2020-12-25 | 住友化学株式会社 | Method for manufacturing laminated optical film |
| CN107436459A (en) * | 2016-05-26 | 2017-12-05 | 住友化学株式会社 | Polarization plates and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100732899B1 (en) | 2007-06-27 |
| JP2006088651A (en) | 2006-04-06 |
| TWI311574B (en) | 2009-07-01 |
| CN1754902A (en) | 2006-04-05 |
| KR20060051683A (en) | 2006-05-19 |
| JP4335773B2 (en) | 2009-09-30 |
| TW200610777A (en) | 2006-04-01 |
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