CN101162275A - High-fine surface material for display, high-fine display and high-fine touch screen having the same - Google Patents

High-fine surface material for display, high-fine display and high-fine touch screen having the same Download PDF

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Publication number
CN101162275A
CN101162275A CNA2007101822906A CN200710182290A CN101162275A CN 101162275 A CN101162275 A CN 101162275A CN A2007101822906 A CNA2007101822906 A CN A2007101822906A CN 200710182290 A CN200710182290 A CN 200710182290A CN 101162275 A CN101162275 A CN 101162275A
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display
antiglare layer
layer
mentioned
surperficial material
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CNA2007101822906A
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CN101162275B (en
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疋田真也
益子真司
中村哲也
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Higashiyama Film Co Ltd
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NOF Corp
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0294—Diffusing elements; Afocal elements characterized by the use adapted to provide an additional optical effect, e.g. anti-reflection or filter
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133502—Antiglare, refractive index matching layers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Position Input By Displaying (AREA)

Abstract

The present invention relates to a surface material which is arranged on the surface of the display and is used by the high-precision display, and the surface material includes an anti-dazzle layer which is directly arranged on the transparent base material or indirectly arranged with a functional layer. The anti-dazzle layer has concave-convex formed on the whole surface and the average distance of the concave-convex ranges from 20 to 300mu m, the surface energy of the anti-dazzle layer is from 30 to 70mN/m and the haze value of the display used surface material is from 3 to 50%.

Description

Surperficial material and high meticulous display that possesses this surperficial material and high meticulous touch-screen that high meticulous display is used
Technical field
The present invention relates to a kind of display that is arranged on display surface with surperficial material and the high meticulous display and the high meticulous touch-screen that possess above-mentioned surperficial material.Described display comprises: be used for the image display of PC, televisor, mobile phone etc. and be used for the display of the touch-screen of automotive electronics navigating instrument, ATM (automatic teller machine) (ATM) etc.; And the display that is used for the exhibition of glass case, plastics cabinet etc.
Background technology
In aforementioned display device, if from the light of outside, in its surface (display surface) diffusion and the words of reflection, then can shine upon image herein, make to be difficult to see clearly inner image, so, the general antiglare film that all is provided for spreading extraneous light on the surface of display.
Yet, if display surface when being touched by the skin of hand and finger etc., at display surface, will adhere to by coming from skin vestiges (hereinafter to be referred as " fingerprint trace ") such as impression of the hand that biological component (particularly lipid) forms and fingerprint trace.Fingerprint trace tends to influence the visibility of display.Therefore, the someone has proposed to preventing the countermeasure of fingerprint trace attached to display surface.For example, existing bulletin (for example, with reference to patent documentation 1) disclosed a kind of antiglare film, this antiglare film is to go up the lamination resin bed at transparent base (hyaline membrane), had formed the antiglare layer that one deck has antifouling properties on this resin bed.Antiglare layer with this soil resistance contains the fluorine modified compound, surpasses 43 degree with respect to the contact angle of the triacetin (triacetin) on antiglare layer surface.
Patent documentation 1 Jap.P. spy opens 2000-194272 communique (the 2nd page and the 4th page)
Patent documentation 1 stain-proofing layer tails off so have the fingerprint trace adhesion amount owing to have lower surface free energy, the advantage that the fingerprint trace that has adhered to is simultaneously wiped easily.On the contrary, because antiglare layer contains the fluorine modified compound, surpass 43 degree with respect to the contact angle of the triacetin on antiglare layer surface, so, form fine droplet easily attached to the lipid components that comes from biosome on the antiglare layer.The fine droplet that comes from the lipid components of biosome can cause the diffuse reflection of light, makes that the fingerprint trace at display surface becomes showy.Therefore, the patent documentation 1 display image visibility that can not improve display this problem that descends.
Summary of the invention
The object of the present invention is to provide a kind of surperficial material that is used for high meticulous display, this surperficial material has anti-dazzle function concurrently and makes and invests the function that surperficial fingerprint trace is difficult for appearing, and can improve the visibility of display; The present invention also provides a kind of high meticulous display and high meticulous touch-screen that possesses above-mentioned surperficial material.
The present inventor notices: the fingerprint trace that is attached to display surface is to be made of the fine droplet that comes from the biosome lipid components, and got clear since light by the random reflection of this fine droplet, fingerprint trace just is identified by the human eye.The application's inventor, carried out the conversion of following idea: become the state that does not generate fine droplet if promptly come from the lipid components of biosome, that is to say, if the surface of display becomes the wetting state of lipid components that is come from biosome, detect by an unaided eye, fingerprint trace just can be showy hardly.So, the present application person finds following two facts: a fact is, in order to realize anti-dazzle property, concavo-convex reservation that forms on the surface, make the adhesion amount that comes from the biosome lipid components reduce, adopting simultaneously and coming from the biosome lipid components has the material of better compatibility to constitute above-mentioned surface, utilizes capillarity, the lipid components that comes from biosome is absorbed above-mentioned surface, and it is showy whereby fingerprint trace to be difficult for; Another fact is by the haze value of control table plane materiel, can obtain to make the fingerprint trace that adapts to the surface to become and more be difficult for showy effect.The present invention just is based on that above two facts finish.
First embodiment of the present invention provides a kind of display surface material that display surface uses that is configured in.This surface material comprises direct setting or is arranged on antiglare layer on the transparent base indirectly by functional layer.Above-mentioned antiglare layer all has concavo-convex on whole surface, and above-mentioned concavo-convex equispaced is 20～300 μ m.The surface energy of above-mentioned antiglare layer is 30～70mN/m.The haze value of the used surperficial material of display is 3～50%.Adopt this formation, because the concavo-convex equispaced on antiglare layer surface is 20～300 μ m, so can obtain the good antiglare effect that diffusion brings by light, the surperficial material that is arranged on the high meticulous display can not produce twinkling phenomenon yet, its result, this surface material can improve the visibility of meticulous display.In addition, because the surface energy of antiglare layer is 30～70mN/m.So antiglare layer becomes better with the compatibility that constitutes the fingerprint trace composition.In addition, because display is 3～50% with the haze value of surperficial material, so it is showy that established fingerprint trace is difficult for more.Therefore, have anti-dazzle function concurrently and make the fingerprint trace that invests the surface be difficult for showy function, can improve the visibility of display.
In one embodiment, above-mentioned antiglare layer forms in resin glue by microparticulate, and the mean grain size of above-mentioned particulate is 0.1～10 μ m, and the content of above-mentioned particulate with respect to above-mentioned resin glue, is 0.5～30 quality %.Adopt under the situation of this formation, because form the particulate of antiglare layer, have and be controlled at the less mean grain size of numerical value, and the content of particulate also control in more a spot of scope, so can not form too much concavo-convex, can realize antiglare effect, also can efficiently realize suppressing the twinkling of surface and prevent the effect that image shines upon.
In another embodiment, the above-mentioned functions layer is a light diffusion layer.Under this formation situation, because functional layer is a light diffusion layer, so can improve anti-dazzle function.
The present invention also provides a kind of its outmost surface to dispose high meticulous display and the high meticulous touch-screen of the meticulous display of above-mentioned height with surperficial material.Under this formation situation, the phenomenon of not dazzling, fingerprint trace is difficult for showy, can obtain exporting high display of resolution and touch-screen.
Concrete implementation content
Below describe embodiments of the present invention in detail.In addition, statement as used in this specification " with respect to the compatibility height that comes from the biosome lipid components " and " with respect to the wellability height that comes from the biosome lipid components " and " being difficult to repel the lipid components that comes from biosome " is equivalent in meaning.
The surperficial material that the high meticulous display of present embodiment is used (the surperficial material of using hereinafter referred to as display, or abbreviate surperficial material as), be a kind of surperficial material that display surfaces such as touch-screen, liquid crystal panel use that is configured in.The surperficial material that this display is used comprises direct setting or is arranged on antiglare layer on the transparent base indirectly by functional layer.The concavo-convex equispaced on antiglare layer surface is set in 20～300 μ m, and surface energy is set in 30～70mN/m, and the haze value of surperficial material (haze value) is set between 3～50%.Be set between 20～300 μ m by concavo-convex equispaced, because of reflected light is spread, so anti-dazzle performance is brought into play the antiglare layer surface.In addition, be set between 30～70mN/m by surface energy the antiglare layer surface, antiglare layer is improved with respect to the compatibility that comes from the biosome lipid components, the lipid components that the comes from biosome recess on easier importing antiglare layer surface that becomes, and it is showy to make that fingerprint trace is difficult for more.In addition,, adjust blur level (brightness turbidity), can make the lipid components that comes from biosome on antiglare layer surface more be difficult for showy by haze value is set in 3～50%.Thereby, can improve the visibility of high-fineness display.
Above-mentioned antiglare layer is set directly on the transparent base usually, but at least an one functional layer can be set between transparent base and antiglare layer.In addition, the overlayer that also can on antiglare layer, form one deck and have compatibility with respect to the lipid components that comes from biosome that forms fingerprint trace etc.In addition, at the back side of the surperficial material that display is used (in the middle of two main faces of transparent base, do not establish the main face of that side of antiglare layer, overlayer or functional layer) be provided with adhesive layer, by this adhesive layer, surperficial material is secured at as the front of the touch-screen of display or liquid crystal display and is used.
At this, describe with regard to high meticulous display.High meticulous display means the high high image quality display of image resolution-ratio.That is be, so that the more clear display of image (reflection) for purpose, raising picture element density.In common display, picture element density is about 50～100dpi (dots per inch), and picture element density is about 100～300dpi in the meticulous display of height.
If the film with existing antiglare layer (the surperficial material that display is used) is configured on the high meticulous display, then the light of high meticulous display (reflection light) seems twinkling, and the visibility of literal and lines etc. is obviously influenced.The generation of the phenomenon of dazzling is relevant with the size of antiglare layer concaveconvex structure.The concaveconvex structure of antiglare layer under than the also big situation of the aperture portion of the black matrix that is in each pixel boundary of display (black matrix), works based on the lens effect of this concaveconvex structure, the scattering on antiglare layer surface concavo-convex of reflection light.This phenomenon is also referred to as flicker (scintillation) phenomenon.In this manual, " dazzling " is meant the term of the phenomenon that is produced by display interior light, follows by outside display light to shine upon " dazzle (the glare) " difference that is produced.
Secondly, each inscape of the surperficial material that display is used is described.
As transparent base, generally adopt transparent resin film, transparent resin sheet, transparency glass plate etc., be not particularly limited.As the resin material that forms transparent base, specifically, can list: the polymethacrylic acid resin, the polymethyl nitrile resin, polystyrene resins, the polysulfones resin, polyester sulfone resinoid, the polyethers resin, the polymethylpentene resinoid, Triafol T (TAC) resinoid, polyethylene terephthalate (PET) resinoid, the polyurethanes resin, the regenerated cellulose resinoid, the diacetyl cellulose resinoid, acetate fourth cellulosic resin, polyester resin, acrylonitrile-styrene-butadiene tri-component copolymerization resinoid, the polycarbonate resinoid, the polyetherketone resinoid, polyvinyl chloride resin, the inferior vinyl resins of polychlorostyrene, polyvinyl alcohol resin, nylon-based resin, polythylene resin, polypropylene-based resin, polyamide-based resin, polyimide based resin, norbornane resinoid etc.In above-mentioned resin, from viewpoints such as versatility and practical effects, be good especially: polymethacrylic acid resin, polystyrene resin, Triafol T (TAC) resinoid, polyethylene terephthalate (PET) resinoid, polycarbonate resinoid with following resin.When using polarized light piece, adopt Triafol T (TAC) resinoid usually as functional layer.
The thickness of transparent base is generally 10～5000 μ m, is good with 25～1000 μ m, with 35～500 μ m for better.When this thickness during, the operation variation is arranged, the tendency of transparent base strength degradation less than 10 μ m.In addition, when this thickness surpasses 5000 μ m, be unnecessary thickening, nonsensical.
Secondly, antiglare layer is illustrated.
It is concavo-convex that antiglare layer is that a kind of its surface has, and is reflected and spreads (surface diffusion) at this concavo-convex glazing, can promote to realize the layer of anti-dazzle sexual function.Realize surface diffusion, can be by concavo-convex the finishing on control antiglare layer surface.Relevant this antiglare layer surface concavo-convex, according to the regulation of Japanese Industrial Standards JIS B 0601-1994, as concavo-convex equispaced (Sm), need be between 20～300 μ m, and be good with 30～200 μ m, with 30～100 μ m for better.If above-mentioned Sm is between 20～300 μ m, under situation about surperficial material being arranged on the high meticulous display, twinkling phenomenon can be inhibited, and can guarantee that well looking of display recognize characteristic.Furtherly, by the Sm value is set between 30～100 μ m, twinkling phenomenon can be suppressed better, can guarantee that also better looking recognize characteristic.Specifically, as described later shown in the embodiment, with Sm is that the situation (embodiment 1 and 2) of 230 μ m or 150 μ m is compared, at Sm is under the situation (embodiment 3～8) of 55～90 μ m, the salient of fingerprint trace and display visibility can be all fine, simultaneously, twinkling phenomenon has also obtained suppressing especially effectively.
In addition, press the regulation of JIS B 0601-1994, the arithmetic average roughness on antiglare layer surface (Ra) to be being good below the 0.3 μ m, and 10 mean roughness (Rz) are being good below 2.0 μ m.This Ra with 0.01～0.2 μ m for better, Rz with 0.1～1.5 μ m for better.Ra is the best with 0.05～0.15 μ m, and Rz is the best with 0.5～1.3 μ m.Be set within this range by Ra and Rz with the antiglare layer concave-convex surface, when surperficial material being configured on the high meticulous display, the phenomenon of not only can guaranteeing not dazzle takes place, but also can guarantee that display has good looking and recognizes characteristic.
Twinkling phenomenon is that the concavo-convex lensing that plays because of the antiglare layer surface produces.The size of these lens is relevant with the Sm value.If the Sm value is within above-mentioned scope, then when being arranged at so-called high meticulous display surface, twinkling phenomenon can be suppressed.And if pixel between relation stipulate that clearly then with respect to the size of a pixel, Sm to be being within 1～80% the scope for good, being within 1～65% the scope, be the best to be within 1～50% the scope for better.
In addition, presentation surface gloss, in measured gloss (gloss) value under the angles of 60 degree (below be referred to as 60 degree gloss numbers) being good below 100%, with below 90% for better, with 10～90% for further good, be the best with 50～90%.Here, 60 degree gloss numbers are abideed by JIS K7105 and are measured, and are to allow light from standard sources, shine on the test portion with the incident angle of regulation, measure its normal reflection light with light-receiving device then and obtain.Gloss number when reference field is the smooth glass face is decided to be 100%.The regulation gloss number surpasses 100% surperficial material, is anti-dazzle property deficiency, and the effect (reducing the effect of dazzle) that preventing when this surface material is arranged on display surface shone upon is also not enough.Gloss number is concavo-convex relevant with the antiglare layer surface also, and gloss number is below 100%, expression concavo-convex finer and close when surpassing this value.
As previously mentioned, be formed with concavo-convexly on the surface of antiglare layer, in order to improve the compatibility that comes from the antiglare layer of biosome lipid components with respect to fingerprint trace etc., its surface energy need be between 30～70mN/m, and be good with 35～70mN/m, with 37～70mN/m for better.Can infer, by this surface energy is set between 30～70mN/m, can improve compatibility with respect to the antiglare layer that comes from the biosome lipid components, the lipid components that comes from biosome is guided to the recess on antiglare layer surface fast, thereby realizes looking the function of recognizing by coming from of having adhered to the fingerprint trace that the biosome lipid components the forms more difficult quilt that becomes.And be lower than at surface energy under the situation of 30mN/m, the lipid components that comes from biosome becomes fine droplet easily, thereby make that light is irregularly reflected, meanwhile, also become difficult based on absorption capillarity, that come from the biosome lipid components that produces by concave-convex surface, so thereby the visibility variation that causes display image etc. is improper.In addition, surpass under the situation of 70mN/m, then be difficult to form above-mentioned antiglare layer at above-mentioned surface energy.Assay method for surface energy is not particularly limited, no matter adopt what method all can, but, abide by JIS K6768 " wetting tension test method(s) " and measure better.
Antiglare layer is if having the material of above-mentioned surface energy, the restriction that then has nothing special, use what resin (resin glue) all can, but all transparent resin is made as constituent usually.As such transparent resin, for example, can use active energy ray-curable resin, thermoset resin, thermoplastic resin etc.Wherein, considering from the viewpoint of throughput rate and various rerum naturas, is good to adopt active energy ray-curable resin or thermoplastic resin then.
Under the situation of using the active energy ray-curable resin, the polymerism composition must be arranged as its constituent.As this polymerism composition; can be from monofunctional monomer, polyfunctional monomer, have the oligomer (below be referred to as polyreactive oligomers) of vinyl or methacryl and have the polymkeric substance (below be referred to as polymerizable polymer) of vinyl or methacryl, select one or more for use.In addition; also can allocate following various adjuvant as required into, as: the polymerization initiator of photolysis type or thermal decomposition type etc., the oligomer (below be referred to as the non-polymerization oligomer) that does not contain vinyl or methacryl, the polymkeric substance (below be referred to as polymerizable polymer) that does not contain vinyl or first (base) acryloyl group, metal oxide, interfacial agent, diluting solvent, photosensitizer, stabilizing agent, ultraviolet light absorber, infrared absorbent, antioxidant etc.
Above-mentioned surface energy is to control by the kind and the content thereof of for example monofunctional monomer and metal oxide.In addition, under the situation of using polyreactive oligomers, polymerizable polymer, non-polymerization oligomer or non-polymerization polymkeric substance (these two kinds of oligomer and two kinds of polymkeric substance are generically and collectively referred to as " each oligomer or each polymkeric substance "), to constituting the monofunctional monomer of " each oligomer or each polymkeric substance ", consider that with the monofunctional monomer level its kind and quantity get final product.
For example, in the combination of monofunctional monomer that does not use " each oligomer or each polymkeric substance " and metal oxide and polyfunctional monomer, the amount of monofunctional monomer can form this condition of resin surface that surface energy is 30～70mN/m as long as possess, the restriction that just has nothing special.Just reach under the situation of the used effective constituent of this surface energy of above-mentioned 30～70mN/m at monofunctional monomer only, the amount of monofunctional monomer, in the polymerism composition, usually more than 10 quality %, and being good more than the 30 quality %, with more than the 50 quality % for better, being the best more than the 75 quality %.Be lower than in this ratio under the situation of 30 quality %, overlayer the tendency of variation can occur aspect the compatibility that comes from the biosome lipid components.Under the situation that is lower than 10 quality %, almost completely lose with respect to the tectal compatibility that comes from the biosome lipid components.
In addition, about the adjuvant that adds as required, as long as it is just no problem in normally used scope, but, with respect to the active energy ray-curable resin, the polymerization initiator of photolysis type or thermal decomposition type etc. is wished preferably with respect to polymerism composition 100 mass parts, and 0.01～20 mass parts is arranged.Be lower than in this proportioning under the situation of 0.01 mass parts owing to film from the constituent that is used to form antiglare layer is resulting, all be difficult to solidify or solidify insufficient, so bad.On the other hand, said ratio surpasses under the situation of 20 mass parts, though then solidify fully, can not get other what effects, and just consumption unnecessarily increases, and causes waste.In addition, the kind for polymerization initiators such as employed photolysis type or thermal decomposition types is not particularly limited, and can arbitrarily use.
In addition, in the combination of above-mentioned monofunctional monomer and polyfunctional monomer, under the situation of adding " each oligomer or each polymkeric substance ", reach the used monofunctional monomer of this surface energy of above-mentioned 30～70mN/m, in the total amount of monofunctional monomer and polyfunctional monomer and " each oligomer or each polymkeric substance ", usually all more than 10 quality %, especially being good more than the 30 quality %, with more than the 50 quality % for better, being the best more than the 75 quality %.Be lower than when this ratio under the situation of 30 quality %, antiglare layer is in the tendency that shows variation aspect the compatibility that comes from the biosome lipid components.When being lower than 10 quality %, almost completely lose with respect to the compatibility that comes from the biosome lipid components.In addition, about the addition of non-polymerization oligomer and non-polymerization polymkeric substance,, usually below 100 mass parts, and be good with 10～80 mass parts with respect to polymerism composition 100 mass parts.When this addition under the situation of 10～80 mass parts, with respect to the compatibility that comes from the biosome lipid components and all very good as the intensity of the speciality of filming of active energy ray-curable resin.
With thermoplastic resin as the situation that is used to form the antiglare layer constituent under, be used to form the constituent of antiglare layer constituent, must have the monofunctional monomer that under above-mentioned active energy ray-curable resin situation, to be adopted to carry out polymerization and polymkeric substance that obtains and the polymkeric substance that does not contain propylene base class functional group.As other thing, also can add interfacial agent, diluting solvent, stabilizing agent, ultraviolet light absorber, infrared absorbent and antioxidant etc. as required.
As monofunctional monomer, can form the condition that surface energy is the resin surface of 30～70mN/m so long as possess, the restriction that just has nothing special.As the monofunctional monomer that can improve surface energy effectively, for example, be good with following monofunctional monomer, that is to say, as carbon number is 1～20 pure and mild ester compounds, and the compound of contain fluorine atoms not, can list methacrylate, itaconate or fumarate.In addition, also can list: carbon number is 1～10 amine and amide compound, does not contain the Methacrylamide of fluorine atom.Can also list styrene and reach the not substituted phenylethylene of contain fluorine atoms.Other can also list the replacement N-ethene-2-Pyrrolidone that does not contain N-ethene-2-Pyrrolidone and fluorine atom.
As monofunctional monomer, specifically, preferably contain: methyl methacrylate, Jia Jibingxisuanyizhi, isopropyl methacrylate, methacrylic acid n-butyl ester, methacrylic acid t-butyl ester, isobutyl methacrylate, the own ester of methacrylic acid n-, methacrylic acid 2-Octyl Nitrite, isodecyl methacrylate, lauryl methacrylate, the methacrylic acid stearyl, the basic ester of methacrylic acid 16 (alkane), isobornyl methacrylate, cyclohexyl methacrylate, methacrylic acid three ring esters in the last of the ten Heavenly stems, the methacrylic acid benzene methyl, the methacrylic acid tetrahydro furfuryl ester, methacrylic acid two cyclopentene hydroxyl ethyl esters, methacrylic acid two ring pentyl esters, methacrylic acid pentamethyl piperidines ester, methacrylic acid hexahydrophthalic acid ethyl ester, methacrylic acid-2-hydroxypropyl ethyl phthalate, methacrylic acid-2-hydroxy butyl ester, methacrylic acid butoxy ethyl ester, the methacrylic acid ethyl phenoxy, methacrylic acid methoxy base diglycol ester, methacrylic acid methoxy base triethyleneglycol ester, methyl acrylic esters such as methacrylic acid methoxy base macrogol ester, styrene, α-Jia Jibenyixi, p (m)-methoxy styrene, fumaric acid two t-butyl, fumaric acid two n-butyl, the fumaric acid diethyl, itaconic acid list (two) methyl, itaconic acid list (two) ethyl, the N-N-isopropylacrylamide, N-ethene-2-Pyrrolidone.
Because surface energy is high more, can more effectively prevent the salient of the fingerprint trace that adhered to more, so the compound that comprises following monofunctional monomer is for better.As this monofunctional monomer, can be listed below: methyl methacrylate, Jia Jibingxisuanyizhi, isopropyl methacrylate, methacrylic acid n-butyl ester, methacrylic acid t-butyl ester, isobutyl methacrylate, isodecyl methacrylate, the methacrylic acid stearyl, the methacrylic acid cetyl ester, cyclohexyl methacrylate, methacrylic acid three ring esters in the last of the ten Heavenly stems, the methacrylic acid benzyl, the methacrylic acid tetrahydro furfuryl ester, methacrylic acid two ring pentyl esters, methacrylic acid pentamethyl piperidines ester, methacrylic acid hexahydrophthalic acid ethyl ester, methacrylic acid-2-hydroxypropyl ethyl phthalate, methacrylic acid fourth 2-ethoxyethyl acetate, the methacrylic acid ethyl phenoxy, methacrylic acid methoxy diglycol ester, the methyl acrylic ester of methacrylic acid methoxy base triethylene glycol etc., styrene, the N-N-isopropylacrylamide.
Above-mentioned desired monofunctional monomer can use one or more, but, shared ratio in active energy ray-curable resin or thermoplastic resin, being good more than the 30 quality %, with more than the 50 quality % for better, being the best more than the 75 quality %.This ratio is lower than under the situation of 30 quality %, and the tendency that its surface institute must the surface energy effect can appear bringing into play in antiglare layer.
As polyfunctional monomer, can list the plural multifunctional polymerization compound of methacryls such as the carboxylate that contains polyvalent alcohol and methacrylic acid, urethane-modified acrylate etc.As polyvalent alcohol, for example can list: ethylene glycol, diethylene glycol, triethylene glycol, TEG, polyglycol, propandiols (propylene glycol), dipropylene glycol, tripropylene glycol, four propylene glycol, polypropylene glycol, propylene glycol (propanediol), butylene glycol, pentanediol, hexanediol, neopentyl glycol, 2-ethyl-1,3-hexanediol, 2,2 '-sulphur support diethanol, 1, the dibasic alcohol of 4-cyclohexylamine dimethanol etc.; The polyvalent alcohol that trihydroxy alcohols such as trihydroxymethyl propane, glycerine, pentaerythrite, two glycerine, dipentaerythritol, two trihydroxymethyl propanes are above etc.
Urethane-modified acrylate can make by the urethane reaction that contains the organic isocyanate of a plurality of isocyanate group and have between the methacrylic acid derivative of hydroxyl in a molecule.Can list as the organic isocyanate that contains a plurality of isocyanate group in the molecule: the hexamethylene diisocyanate, the isophorone diisocyanate, the toluylene group diisocyanate, naphthalene diisocyanate, methyl diphenylene diisocyanate, Xylene Diisocyanate, the organic isocyanate that has two isocyanate group in molecule such as double-hexyl methane diisocyanate, carry out above-mentioned organic isocyanate isocyanate-modified, the adduct modification, has the organic isocyanate of three isocyanate group etc. in the molecule after biuret modified.
In above-claimed cpd, aspect from improving coating strength or obtaining easily preferably adopts following compound: the dimethacrylate hexanediol, the dimethacrylate neopentyl glycol, the dimethacrylate diglycol, dimethacrylate tripropylene alcohol, trimethyl acrylic acid gathers hydroxymethyl-propane, trimethyl acrylic acid pentaerythrite, the methyl acrylic ester of hexamethyl acrylic acid dipentaerythritol etc., hexamethylene diisocyanate and methacrylic acid 2-hydroxyethyl add adult (Fu Jiati), isophorone diisocyanate and methacrylic acid 2-hydroxyethyl add adult, cresylene diisocyanate and methacrylic acid 2-hydroxyethyl add adult, the adult that adds that adds adult and biuret modified isophorone diisocyanate and methacrylic acid 2-hydroxyethyl of adduct modification isophorone diisocyanate and methacrylic acid 2-hydroxyethyl.
As the oligomer that does not contain vinyl and methacryl, can list: the various oligomer of propenyl oligomer, polyester oligomer, epoxy oligomer, oligourethane, polyether oligomers, pure acid oligomer, polybutadiene oligomer, poly-sulfo-polyenoid (hydrocarbon) oligomer and helix poly formaldehyde oligomer, the oligomer that constitutes by the multifunctional methacrylate of polyvalent alcohol.
As the oligomer that comprises vinyl and methacryl, can list the oligomer that vinyl and methacryl is added to above-mentioned oligomer and generate.As the polymkeric substance that does not comprise vinyl and methacryl, can list the polymer-type of the oligomer that does not comprise above-mentioned vinyl and methacryl.As polymkeric substance, can list the polymer-type of oligomer with above-mentioned vinyl and methacryl with vinyl and methacryl.
About these oligomer and polymkeric substance, preferably select to bring into play various functions, maybe can improve and adjacent layer between adhering.For example, at adhesiveness, preferably select the resin that has compatibility with the resin that forms adjacent layer.That is to say, select following multipolymer better: by the polymkeric substance that has compatibility with active energy ray-curable resin or thermoplastic resin with have segmentation multipolymers such as segmented copolymer that two kinds of polymkeric substance such as polymkeric substance of compatibility form and graft copolymer with active energy ray-curable resin or the layer adjacent with thermoplastic resin.
As polymerization initiator, can list the known compound that begins polymerization by ultraviolet ray and the irradiation of light isoreactivity energy line, for example: Benzophenone class, acetophenones, α-amyl group oxime ester, Mi Xile benzene (first) acyl benzoate, tetramethylthiuram monosulfide, thioxanthones.Specifically, can list: 1-hydroxy-cyclohexyl benzene (Ji Jia) ketone, 2-hydroxy-2-methyl-1-phenyl-propane-1-ketone, 2-methyl isophthalic acid-[4-(methyl sulfo-) phenyl]-2-fen base propane-1-ketone, 1-[4-(2-hydroxyl-oxethyl) phenyl]-2-hydroxy-2-methyl-1-propane-1-ketone, benzoin, 2,2-dimethoxy-1,2-diphenylethane-1-ketone, Benzophenone, [4-(aminomethyl phenyl sulfo-) phenyl] phenyl ketone, the 4-Viosorb 110,4-phenyl Benzophenone, 3,3 ', 4,4 '-four (the t-butyl is crossed carbonyl) Benzophenone, 2-chloro-thioxanthones, 2, the 4-diethyl thioxanthone, α-amyl group oxime ester, Mi Xile benzene (first) acyl benzoate, tetramethylthiuram monosulfide etc.
Above-mentioned interfacial agent generally adopts as required, its objective is to promote dissolving mutually and improve the flatness on antiglare layer surface when cooperating various raw material.As such interfacial agent, important being kept surface energy between 30～70mN/m, for this reason, preferably uses levelling agent that propenyl based copolymer (ionization series, nonionic system), metering system base co-polymer, solvent based coating use etc.
Commercially available product as interfacial agent can list: " BYK-361 ", " BYK380 ", " BYK-390 ", " BYKetol-WS ", " BYK-OK ", " NANOBYK-3601 ", (production of Bi Ke chemical company) etc.Interfacial agent shared proportioning in being used to form the constituent of antiglare layer is generally with respect to solid constituent 100 mass parts that are used to form the antiglare layer constituent, is good with 0.01～10 mass parts, with 0.01～5 mass parts for better.When this proportioning surpasses under the situation of 10 mass parts, be the above amount of flatness aequum that realizes dissolving mutually or antiglare layer, there is not any meaning.On the other hand, under the situation that is lower than 0.01 mass parts, so the tendency that exists the effect of interfacial agent fully not obtain is not so good.In addition, as interfacial agent, also can use the polysiloxane compounds, but, because the difference of addition and kind, surface energy drops to sometimes and is lower than 30mN/m, so its addition must suitably be adjusted.
As the polysiloxane compounds, be good with straight chain shape or the polyglycols brightness siloxane compound that contains chain, the multipolymer that contains polyalcohols brightness siloxane also can.The representation example of polyglycols brightness siloxane is a dimethyl silicone polymer.In addition, at the end of main chain and side chain, vinyl or methacryl isoreactivity base can be arranged also.The part of this methyl even the structure that can be replaced by other organic groups all (the substituted position of only above-mentioned methyl both can be endways, also can in chain).As above-mentioned other organic group, for example can be to have the chain etc. of unit repeatedly such as alkyl, aryl, naphthenic base and polyoxyalkylene chain except that methyl and polyester chain.And above-mentioned organic group also can have hydroxyl, amino, epoxy radicals, acyl group, acyloxy, carboxyl, other functional groups.
As chain with above-mentioned unit repeatedly, for example, can list: polyoxy alkylene chain, polycaprolactone chain and polyester chains such as tygon sebacate chain, polyethylene adipate chain such as polyoxyethylene chain, polyoxypropylene chains, polyoxy tetramethylene chain, poly-(ethylene oxide propylene oxide) chain.The end of these chains both can be hydroxyl, carboxyl, methacryl and vinyl, and its end also can be blocked by organic group.For example, also can adopt the alkyl etherificate, methods such as alkyl esterification are blocked.In addition, this chain is all followed the silicon atom combination by alkylene such as dimethylene, trimethylenes usually, but also is not limited to this.
As the polysiloxane based compound, with the ether modified dimethyl polysiloxane is good, as its commercially available product, can list: " BYK-306 " " BYK330 ", " BYK-341 ", " BYK-344 ", " BYK-307 ", " BYK-333 " (production of Bi Ke chemical company), " VXL4930 " (German Vianova Resins AG company produce) etc.
Diluting solvent is when the constituent of antiglare layer is formed, is used to form to coating by active energy ray-curable resin or thermoplastic resin, for the viscosity of adjusting this coating liquid is used, so long as the non-polymerization material, and the restriction that just has nothing special.As diluting solvent, for example, can list: toluene, dimethylbenzene, ethyl acetate, propyl acetate, butyl acetate, methylcellulose solvent, ethyl cellulose solvent, ethyl cellulose solvent acetate, methyl alcohol, ethanol, isopropyl alcohol, butanols, acetone, MEK, methylisobutylketone, cyclohexanone, hexane, heptane, octane, decane, dodecane, propylene glycol monomethyl ether, 3-methoxybutanol etc.
As photosensitizer, can adopt the used known compound of above-mentioned polymerization initiator, for example the tertiary amine of tri-n-butylamine, triethylamine, polyethyleneimine, poly--n-butyl phosphoric acid salt (poly-n-butyl phosphate), p-dimethylamino ethyl benzoate, p-dimethylamino benzoic acid isopentyl ester etc. etc.
In addition, in above-mentioned active energy ray-curable resin or thermoplastic resin, the shared ratio of fluorine atom to be being good below 0.05 quality %, with below the 0.01 quality % for better, not contain promising the best fully.In other words, active energy ray-curable resin or thermoplastic resin preferably by the atomic building except that fluorine atom, perhaps are made of more than 99.95 quality % the atom content except that fluorine atom, and be better to constitute more than the 99.99 quality %.Surpass under the situation of 0.05 quality % in the fluorine atom ratio, because fluorine atom becomes the low surface free energy composition, on the outmost surface of surperficial material, the lipid components that comes from biosome has the tendency that becomes fine droplet, so it is showy that fingerprint trace becomes easily, the visibility of the display image that is attached with fingerprint trace etc. is descended, so bad.
Forming in the middle of the resin of above-mentioned antiglare layer, showy for the fingerprint trace that comes from the biosome lipid components attached to its surface is difficult for, preferably contain metal oxide (particulate).Kind as this metal oxide, can list many, be not particularly limited, but general so that be good with following metal oxide: monox (silica), hollow monox, aluminium oxide, titanium dioxide, antimony oxide, zinc paste, tin oxide, zirconia etc.These metal oxides can suitably be selected one or more for use.The form of adding metal oxide is had no particular limits, but, still be advisable with forms such as powder, colloidal sols.
Though the mean grain size to metal oxide is not particularly limited, consider the dispersiveness of metal oxide and the transparency of filming, be good still with 1～200nm, for better, be the best with 1～150nm with 1～80nm.Mean grain size by selected metal oxide is in optimum range, and filming is improved with respect to the compatibility that comes from the biosome lipid components, attached to the film coated surface fingerprint trace become be difficult for showy.Mean grain size at metal oxide is lower than under the situation of 1nm, makes and go smoothly all to be difficult to, and the fingerprint trace that is formed by the lipid components that comes from biosome attached to film coated surface becomes showy easily, so bad.On the other hand, if greater than 200nm, then the dispersiveness of metal oxide all can reduce with the transparency of filming.
Contain under the situation of above-mentioned metal oxide in the constituent that is used to form antiglare layer allowing, in order not reduce the dispersion stabilization in the constituent that is used to form antiglare layer and the adhesiveness of resin glue etc., preferably with in advance in organic dispersing agent scattered organosol form use.In addition, in being used to form the constituent of antiglare layer,, can adopt various coupling agents, the surface of metal oxide microparticle is modified in advance for the dispersion stabilization that improves metal oxide microparticle and the adhesiveness in resin glue etc.As various coupling agents, for example, can list: by the silicon compound of organic replacement; The metal alkoxide of aluminium, titanium, zirconium and antimony or its potpourri etc.; Acylate; Coordination compound that combines with the coordination compound etc.In order to improve the adhesion property of employed metal oxide surface, preferably carry out finishing in advance with polymerism functional groups such as propenyl, acryloyl groups with resin glue.The ratio of shared metal oxide in the polymerism composition is good with 5～95 quality %, for better, is the best with 35～70 quality % with 20～80 quality %.Be lower than in this ratio under the situation of 5 quality %, make the fingerprint trace that comes from the formation of biosome lipid components be difficult for showy function meeting variation attached to the surface.On the other hand, surpass under the situation of 95 quality %,, also can become not enough, so bad as the intensity of active energy ray-curable resin coating film speciality at aforementioned proportion.
In being used to form the constituent of antiglare layer, use under the situation of thermoplastic resin, form the condition that surface energy reaches the resin surface of 30～70mN/m, just have no particular limits as long as have.It mainly uses following two kinds of polymkeric substance, and a kind of is the polymkeric substance that is obtained through polymerization by the monofunctional monomer that is used under the above-mentioned active energy ray-curable resin situation, and another kind is the polymkeric substance that does not comprise propylene base class functional group.As required, also can add other adjuvants, as diluting solvent, stabilizing agent, ultraviolet light absorber, infrared absorbent and antioxidant etc.Thermoplastic resin can use one or more, is using under the two or more situations, and its ratio can be set arbitrarily., can in usual range, use according to the adjuvant that needs add as for other, no problem.
In being used to form the constituent of antiglare layer, use under the situation of heat-curing resin,, just have no particular limits as long as can obtain the resin surface that surface energy is 30～70mN/m.As heat-curing resin, for example can adopt: phenolics, urea resin, diaryl phthalic ester resin, melamine resin, guanamine resin, unsaturated polyester resin, polyurethane resin, epoxy resin, amino-alkyd resin, melamine-urea cocondensation resin, silicones, polyorganosiloxane resin etc.These heat-curing resins can use one or more, and under situation about being used in combination of two or more, aforementioned proportion can be set arbitrarily.As required, also can in heat-curing resin, add adjuvants such as polymerization initiator, metal oxide, interfacial agent, diluting solvent, stabilizing agent, ultraviolet light absorber, outer light absorbers, antioxidant by well-established law.
Be used to form the method for antiglare layer constituent as coating on transparent base, can adopt following any known method: roller coat (roll coat) method, spin coating (spin coat) method, dip-coating (dip coat) method, (brush coat) method of brushing, spraying (spray coat) method, rod is coated with (bar coat) method, blade coating (knife coat) method, die is coated with (die coat) method, gravure is coated with (photogravure coating) method, curtain coating (curtaincoating) method, reverse roller coat (reverse roll coating) method, moistening roller coat (kiss roll coating) method, funny spot printing (comma coat) method.When applying,, also can carry out corona discharge (corona discharge) processing in advance at laminar surface and wait certain pretreatment process as required in order to improve interlayer adhesion.
As being used for the active-energy line source that active energy ray (energy line) curable resin solidifies, for example generally use the line source of high-pressure mercury-vapor lamp, Halogen lamp LED, xenon lamp, nitrogen molecular laser, electronics line accelerator, radioelement etc. etc.The exposure of energy line source is as the accumulative total light quantity under the ultraviolet wavelength 365nm, being good in 50～5000mJ/cm2 scope.When exposure is less than 50mJ/cm2, owing to the curing of the constituent that is used to form antiglare layer is insufficient, so bad.On the other hand, when exposure surpasses 5000mJ/cm2, because painted tendency can appear in the active energy ray-curable resin, so also bad.
In addition, antiglare layer preferably selects a kind of energy to improve and the adhering structure of adjacent layer.Therefore preferably select a kind of resin that the resin that forms adjacent layer is had compatibility.That is to say, preferably select sections (segment) such as the segmented copolymer that constitutes by following two kinds of polymkeric substance and graft polymer to change multipolymer, a kind of is the polymkeric substance that above-mentioned active energy ray-curable resin or thermoplastic resin are had compatibility, and another kind is the polymkeric substance that the layer adjacent with active energy ray-curable resin or thermoplastic resin had compatibility.
As form concavo-convex method on antiglare layer surface, can from known method, suitably select, have no particular limits, but, for example, can list following method: particulate is added to the method in the resin material of antiglare layer; Employing has the clone method that corresponding institute wants the masterplate (for example die) that concavo-convex egative film constructs.Concrete grammar to duplicating is not particularly limited, and for example, can list that metal pattern duplicates, thin slice duplicates and methods such as film duplicates.
In the particulate additive process, can list the example of making particulate of inorganic particles and plastics microballon (resin particle), still, when needs adjust the transparency and and transparent resin between refringence the time, from optional this viewpoint of the refractive index of wanting, be good with the plastics microballon.As the material of this plastics microballon, can list: vestolit, methacrylic resin, propylene-styrene multipolymer, polystyrene resin, melamine formaldehyde resin, polyvinyl resin, polycarbonate resin etc.In addition, the mean grain size of these particulates, to be good between 0.1～10 μ m, with 0.5～5 μ m for better.Be lower than in this mean grain size under the situation of 0.1 μ m, the tendency of anti-dazzle performance deficiency can occur, if surpass 10 μ m, then haze value becomes too high, transparent affected tendency can occur.These particulates also can be used as the particulate that the aftermentioned light diffusion layer is used.
As the use level of particulate, usually, be good with respect to 0.5～30 quality % of transparent resin, with 2～25 quality %, for better, be the best with 3～20 quality % with 5～15 quality %.When the use level of particulate is less than under the situation of 0.5 quality %, often can not get enough anti-dazzle property, and be difficult to form absorb and come from the concavo-convex of biosome lipid components institute q.s by capillarity.The use level of particulate is as surpassing 30 quality %, and then haze value becomes excessive, is arranged on the surperficial material of display surface, seems to turn white the identification of meeting failure pattern picture.
Next, according to the method for by copying formation antiglare layer, for example, can use the constituent that is used to form antiglare layer that has added transparent resin or above-mentioned particulate to make.Specifically, under the situation of active energy line curing resin, coating is used to form the constituent of antiglare layer on masterplate, carries out precuring by active energy ray, can keep the flexibility or the thermoplasticity of the degree of can duplicating on demand.After this, be pressed onto masterplate on the transparent base after, by taking off masterplate, perhaps not demoulding version, it is constant to maintain the original state, the irradiation active energy ray is cured, and just can make.In addition, when extruding, also can heat as required.In addition, under the situation of thermoplastic resin, coating and dry be used to form the constituent of antiglare layer after, by under the temperature more than the softening point, push established filming, can duplicate.As the example of masterplate, for example can list excipient film, excipient cylinder, excipient and publish press with flat plate mold etc., in the excipient film, also can use commercially available AG (anti-dazzle) film.
About the thickness of antiglare layer, as long as more than the concavo-convex difference of height of want, but, usually all between 0.1～1000 μ m, and be good with 0.1～200 μ m, with 0.1～100 μ m for better.This thickness is difficult to form the concavo-convex of desired height than under the thinner situation of 0.1 μ m, and when surpassing 1000 μ m, then except thickening of there is no need, not meaningless.As the design of the meticulous antiglare layer of corresponding height, preferably to prevent to dazzle and descend by the contrast that whiting causes.As previously mentioned, dazzle and to solve by making the concave-convex surface optimization.In addition, the image whiting then can depend on that the haze value of internal divergence solves by control.Thus, necessary surface diffusion and the internal divergence balance between the two that keeps based on concave-convex surface.
In order to realize above-mentioned internal divergence, preferably use to have than the antiglare layer thickness particulate of small particle diameter more, at film inner filling particulate.As its index, applicable haze value.Be used for the surperficial material of high meticulous display, haze value (turbidity, blur level) is abideed by JIS K7136 and is recorded, and is to remove ghost line transmissivity gained quotient with the full light transmittance of usefulness that percent is represented.This haze value and is good with 3～30% between 3～50%, with 3～25% for better, is the best with 3～20%.Haze value less than 3% situation under, antiglare effect is not good, surperficial material is being configured under the situation of display surface the effect deficiency that prevents to video and shine upon.Haze value greater than 50% situation under because reduce or be configured under the situation of display surface in contrast, so the picture strip adularescent tone of display is improper.
Secondly, the overlayer that is arranged on the above-mentioned antiglare layer is described.
Because fingerprint trace is coming from the biosome lipid components, promptly oil component is main, so overlayer is the oil component affine layer good with respect to the compatibility that comes from the biosome lipid components.Good with respect to the compatibility that comes from the biosome lipid components for making, tectal surface energy need be identical with above-mentioned antiglare layer, is 30～70mN/m.And for improving with respect to the compatibility that comes from the biosome lipid components, the ratio in the shared formation overlayer of the fluorine atom resin will be being controlled at below the 0.05 quality % to good, with below the 0.01 quality % for better, with fully not contain fluorine atoms be the best.That is to say, form tectal resin,, perhaps more than 99.95 quality %, constitute by the atom content except that fluorine atom preferably by the atomic building except that fluorine atom, wherein better with constituting more than the 99.99 quality %.Form tectal other compositions, should select to form the composition of above-mentioned antiglare layer, its formation method also should adopt the method that forms antiglare layer.
Tectal thickness is so long as in the degree of the concavo-convex disappearance that does not make antiglare layer, with regard to the problem that has nothing special.Specifically, tectal thickness is good with 1～1000nm, wherein with 5～500mn for better, be the best with 10～300nm.This thickness is during less than 1nm, the tendency that existence can not evenly apply.On the other hand,,, and concavo-convex landfill can be fallen, the tendency that " making fingerprint trace be difficult for showy function " reduces occurs just overlayer can not be followed the concavo-convex of antiglare layer if surpass 1000nm.But, adopting condition in the coating of antiglare layer male and fomale(M﹠F), the thickness during coating on even surface is regarded above-mentioned thickness as.
For improving the adhesiveness of overlayer,, be good with the monomer that contains band carboxyl, hydroxyl, epoxy radicals, amino isopolarity base as the active energy ray-curable resin to antiglare layer.As the monomer that contains polar group, will good this point from improving adhering function, be good with the monomer that contains carboxyl or hydroxyl.Monomer as band carboxyl or hydroxyl can list methacrylate, itaconate and fumarate etc.
Monomer as band carboxyl or hydroxyl; specifically; can list: methacrylic acid 2-hydroxyl ethyl ester; methacrylic acid 2-hydroxypropyl acrylate; methacrylic acid 2-hydroxy butyl ester; methacrylic acid 2-hydroxyl-3-phenoxy group propyl ester; 2-acryloyl group hydroxyethyl-2-hydroxyethyl phthalic acid; pentaerythrite three acrylates; 2-acryloyl group hydroxyethyl acid phosphate; 2-acryloyl group hydroxyethyl succinic acid; 2-acryloyl group hydroxyethyl hexahydrophthalic acid; 2-acryloyl group hydroxyethyl phthalic acid; as commercially available product, can list: the epoxy-ester 70PA that Kyoeisha Chemical Co., Ltd. produces; the epoxy-ester 200PA that Kyoeisha Chemical Co., Ltd. produces; the epoxy-ester 80MFA that Kyoeisha Chemical Co., Ltd. produces; the epoxy-ester 3000A that Kyoeisha Chemical Co., Ltd. produces; the epoxy-ester 3002A that Kyoeisha Chemical Co., Ltd. produces; the V#540 that Osaka Organic Chemical Industry Co., Ltd. produces; the V#2100 that Osaka Organic Chemical Industry Co., Ltd. produces; the V#2323 that Osaka Organic Chemical Industry Co., Ltd. produces.In order to improve adhesiveness more, it is better to contain following monofunctional monomer.As this monofunctional monomer, can list: 2-acryloyl group hydroxyethyl-2-hydroxyethyl phthalic acid, pentaerythrite three acrylates.As commercially available product; can list: the epoxy-ester 3000A that the epoxy-ester 80MFA that Kyoeisha Chemical Co., Ltd. produces, Kyoeisha Chemical Co., Ltd. produce, the NK ester CBX-1N that the NK ester CBX-0 that the epoxy-ester 3002A that Kyoeisha Chemical Co., Ltd. produces, 2-acryloyl group hydroxyethyl phthalic acid, Xin Zhong village chemical industry Co., Ltd. produce, Xin Zhong village chemical industry Co., Ltd. produce.
In the active energy ray-curable resin, have the content of the monomer of carboxyl or hydroxyl, be good with 0.1～20 quality %, with 0.3～10 quality % for better, with 0.5～5 quality % for good especially.Be lower than at this content under the situation of 0.1 quality %, can not fully improve the adhesiveness of overlayer, so bad antiglare layer.On the other hand, under the situation more than 20 quality %, overlayer is to the adhesiveness of antiglare layer, can not get the effect that matches with content, and causes waste, and meanwhile, the rerum natura of antiglare layer also reduces.
Secondly explanation is arranged on the functional layer between above-mentioned transparent base and the antiglare layer.
The surperficial material that is used for display, between transparent base and antiglare layer, as required, can the one or more functional layers of lamination.As this functional layer, for example can list light diffusion layer, polarized light piece, UV-absorbing layer, infrared ray absorbing layer, anti-reflection layer, soft (shock-resistant) layer, hard overlayer, conductive layer, anti-charged layer, heat insulation layer, reflection horizon, the end (primer) layer etc.
Functional layer is being made as under the situation of light diffusion layer, when the aggregate value of the two-layer haze value of antiglare layer and light diffusion layer the time as haze value, result from the haze value (haze value before antiglare layer is formed at top) of light diffusion layer, with respect to the haze value (full haze value) that has formed after the antiglare layer, being good below 50%.When the ratio of this haze value surpassed 50%, because the display image whiting, contrast descended, so bad.
Light diffusion layer, in surperficial material, by diffusion in layer from the light of display, can realize increasing in the antiglare layer, with respect to the function of ratio ratio, non-normal direction light of antiglare layer normal direction light.In order to realize this function, light diffusion layer is made a particulate (light transmission particulate) and is dispersed in the transparent resin, for keeping the light diffusion layer transparency, transparent resin and particulate are poor to optical index, preferably be set in 0.01～0.5 scope, in addition, for guaranteeing scattering property, the mean grain size of particulate preferably is set in 0.1～7.5 mu m range.
If above-mentioned refringence is lower than 0.01, owing to will play the light diffusion effect, just must allocate a large amount of light transmission particulates into, so between light diffusion layer and the transparent base, perhaps the adhesion between light diffusion layer and the antiglare layer can reduce, and, when forming light diffusion layer, contain the light diffusion layer constituent of a large amount of light transmission particulates, the conformability of its coating also can descend, its result just causes being difficult to form uniform light diffusion layer.Otherwise,, will cause the transparency to descend, and when surperficial material was applied to display, the distinctiveness of its image and contrast all can descend if above-mentioned refringence surpasses 0.5.
In addition, if above-mentioned mean grain size is less than 0.1 μ m, then when forming light diffusion layer in the constituent of used formation light diffusion layer, the light transmission particulate is reunited easily, the coating conformability that is used for light diffusion layer formation constituent will descend, and its result is difficult to form uniform light diffusion layer.Otherwise,, then can begin to occur dazzling, so bad if mean grain size surpasses 7.5 μ m.The thickness of light diffusion layer is generally 0.1～1000 μ m, and is good with 0.1～200 μ m, with 0.1～100 μ m for better.During less than 0.1 μ m, the diffusion effect of light is not enough at this thickness, and when surpassing 1000 μ m, diffusion effect is excessive, can cause the vividness of display image to descend, so bad.
Functional layer is being made as under the situation of polarization film, can adopting anti-dazzling polarizing light film.In addition, in LCD,, but, because of its actual form is exactly the thicker film of thickness, perhaps be exactly the appearance of thin slice, so referred to herein as polarization film although use this term of polarized light piece always.Polarization film has following structure: with two overlays (being generally the TAC film), and will be by in polyvinyl alcohol (PVA) (PVA) film, adding the polariscope that film that iodine and dyestuff after stretching form etc. constitutes, the sandwich construction that is clipped in the middle.Except polyvinyl alcohol film, also can adopt polyvinyl formal film, Pioloform, polyvinyl acetal film, ethylene-vinyl acetate copolymer is the material starting material as polariscope such as saponification film.Therefore, on making, with an overlay of polarization film, handle as transparent base, light diffusion layer and antiglare layer etc. on the lamination, and as required, form aforesaid various functional layer, give function perhaps for each layer, make the surperficial material that display is used.
Such functional layer, available inorganics, organism or its potpourri form.Its thickness is good with 0.005～100 μ m.In addition, the formation method of functional layer is not particularly limited, can adopts dry-coated method or the wet method that is coated with.Functional layer preferably has the function that can improve hardness, adhesiveness and mar resistance.
For example, in order to improve mar resistance, can adopt the method and the softening method that improve functional layer hardness between transparent base and the antiglare layer.As the material that forms the above-mentioned functions layer, only otherwise destroy effect of the present invention, just there is no particular limitation, can use existing known method.For example, can adopt organism, inorganics or its potpourri.For example, for the material that hard overlayer is used, in order to improve hardness, it is good containing the curable monomer of being with bridging property with use.As the curable monomer of band bridging property, to adopt by heating or to pass through ultraviolet ray, the irradiation of electronics line isoreactivity energy line, the short time is that curable monomer is good.As the curable monomer, for example, can list: silicon compounds such as simple function group or polyfunctional group methacrylate, tetraethoxysilane.
As the polyfunctional group methacrylate; for example; can list: two five erythritols, six acrylates, tetramethylol methane tetrapropylene acid fat (five erythritol tetrapropylenes acid fat), tetramethylol methane three acrylates (five erythritols, three acrylates), trimethylolpropane triacrylate, 1; 6-hexanediyl fat, 1, polyfunctional group 01 derivatives, polyglycol diacrylate, polyurethane acrylates etc. such as two (the 3-acryloyl group hydroxy-2-hydroxypropyl hydroxy) hexanes of 6-.In addition, as inorganics, can list the ultramicron of silicon gel.
Secondly, be arranged on the adhesive layer on the surperficial material that display uses, be used for surperficial material paste display surface layer.As the cementing agent that forms this adhesive layer, for example, can list propylene base system cementing agent, rubber is cementing agent and silicone-based cementing agent etc., but, considering from transparent this point, is good with propylene base system cementing agent, in addition, considering from this this point of releasable, is good with the silicone-based cementing agent then.In the middle of these cementing agents, except the cementability component of polymer, can also comprise plasticizer with give adhesive property become to grade, but, be that prerequisite is determined proportioning preferably not damage the transparency.As the cohesiveness polymkeric substance of propylene base class cementing agent major component, with carbon number be 1～10, the multipolymer that has the alkyl methacrylate of alkyl and contain the unsaturated monomer of functional group is good.Be 1～10, have the alkyl methacrylate of alkyl as carbon number, can list: 2-EHA, butyl acrylate, Isooctyl acrylate monomer, butyl methacrylate, propyl methacrylate etc.As the unsaturated monomer that contains functional group, can list: acrylic acid, methacrylic acid, maleic acid, fumaric acid, hydroxy-ethyl acrylate, hydroxyethyl methylacrylate etc.As the cohesiveness polymkeric substance of rubber-like cementing agent principal ingredient, be good with styrene butadiene random copolymer, styrene-isoprene based block copolymer and natural rubber etc.The thickness of adhesive layer is good with 5～100 μ m.
The surperficial material that display is used, be configured in touch with hand after, the outmost surface of the display that its surface may be polluted by fingerprint trace is comparatively effective.Specifically, as PC, word processor, TV, mobile phone, portable terminal, game machine, automatic cash access device, Automatic Teller Machine, automatic vending machine, guider, as the outmost surface of the touch-screen (toner class display of usefulness such as CRT, plasma scope, LCD, electroluminescent display, field-emitter display, emission (projection) display, Electronic Paper or the like) of the display of the image that shows security system terminal etc.In addition, as the glass cabinet of the showcase that puts on display display, show window etc. and the outmost surface of plastics cabinet.
For example, under situation, the one-piece type situation that is assembled in above-mentioned various displays is arranged and be configured in divergence type on the display surface of various display equipments as the touch-screen of display.As the mode of touch-screen, can adopt any way of known manner, be not particularly limited.Specifically, for example can list any ways such as ultrasound wave mode, resistive film mode, static capacity mode, electric distortion mode, magnetostriction mode, infrared mode and way of electromagnetic induction.Considering from consumed power and price viewpoint, is good with the touch-screen of resistive film mode, considers that from the viewpoint of resolution then the touch-screen with way of electromagnetic induction is good.
The below effect of explanation present embodiment.The surperficial material that display is used is formed by making surperficial irregular antiglare layer with resin on transparent base and its.For example, under the situation that the touch screen surface that above-mentioned surperficial material is configured in the resistive film mode is used, press...with one's finger and press the surface of surperficial material, can carry out the operation of touch-screen.At this moment,, just be attached with the lipid components that comes from biosome that forms fingerprint trace, make the image visibility of touch-screen reduce on the surface of surperficial material.In addition, when touch-screen is under the situation of way of electromagnetic induction, since operate with input pen, thus not to touch the operation of being done with finger, still, in with the input pen operation, can touch display surface by useful palm, adhere to and come from the situation of biosome lipid components, even if also have inoperation, also still touch display picture, adhere to the situation that comes from the biosome lipid components with finger tip.In these cases, situation is same during with the resistive film mode, also can cause touch-screen image visibility to reduce.
In the case, the antiglare layer of surperficial material is lip-deep concavo-convex, and its equispaced Sm is made as 20～300 μ m, especially Sm and is located between 30～100 μ m, so the phenomenon of dazzling reduces.And, concavo-convex because of the surface, capillarity is achieved, and can make the lipid components that comes from biosome that forms fingerprint trace, is introduced to the recess on surface.And, because the surface energy of antiglare layer is set between 30～70mN/m,, come from the lipid components of biosome so antiglare layer is improved with respect to the compatibility that comes from the biosome lipid components, can be guided to the recess on surface apace, allow fingerprint trace become and to look and recognize.And, being set between 3～50% by haze value surperficial material, blur level (brightness turbidity) is adjusted, and it is showy that the fingerprint trace that sticks to the antiglare layer surface is difficult for.Thereby above-mentioned effect synergy is worked, and the image of touch-screen just can clearly be looked and recognize.
According to present embodiment, can obtain following advantage.
The surperficial material that the high meticulous display of employing present embodiment is used by the equispaced Sm of antiglare layer concave-convex surface is made as 20～300 μ m, can obtain effective anti-dazzle property; Be made as 30～70mN/m by surface energy, can improve compatibility with respect to the lipid components that comes from biosome that causes by fingerprint trace antiglare layer.In addition, be made as 3～50% by the haze value surperficial material, it is showy that fingerprint trace more is difficult for.Its result, surperficial material has anti-dazzle function concurrently and makes the fingerprint trace of attaching surface be difficult for showy function, thereby can improve the visibility of display.
The mean grain size that forms above-mentioned antiglare layer particulate is set in the little scope, and the content of particulate also is set within a spot of scope.So can not form superfluous concavo-convexly on the surface, and can realize anti-dazzle function, and effect such as can efficiently realize suppressing to dazzle, prevent to shine upon.
By the above-mentioned functions layer is made light diffusion layer, both can suppress twinkling, can improve anti-dazzle function again.
Under the situation of meticulous display of height and high meticulous touch-screen, because in its outmost surface, all dispose the surperficial material that the meticulous display of above-mentioned height is used, so even very high display and the touch-screen of output resolution, do not have situation such as twinkling and take place, fingerprint trace can become be difficult for showy.
Below, enumerate embodiment and comparative example, above-mentioned embodiment is made more specific description.The showy difficulty of fingerprint trace, surfaceness, haze value and twinkling degree etc. in relevant each example are measured respectively by the following method.
(1) the showy difficulty of fingerprint trace
For attached to the showy difficulty of display with the fingerprint trace on the surperficial material, divide following four grades, carried out functional evaluation with visual.
4: fingerprint trace loses fully; 3: fingerprint trace slightly as seen;
2: fingerprint trace is shallow but clearly visible; 1: fingerprint trace is clearly visible.
(2) surfaceness
The commodity that use little slope research institute of Co., Ltd. to produce are called the roughness tester of SURFCORDER S E 4000 types, in sweep limit is that 1.5mm, sweep velocity are under the condition of 0.1mm/s, abide by the regulation of JIS B 0601-1994, measured arithmetic average roughness Ra (μ m), 10 mean roughness Rz (μ m) and concavo-convex equispaced Sm (μ m).
(3) 60 degree gloss numbers
Abide by JIS K7105, use and to congratulate the portable gloss meter of HG-268 type that testing machine Co., Ltd. produces, measured 60 degree gloss numbers (%).
(4) surface energy
Measure according to the described method of JIS K6768 " wetting tension test method(s) ".
(5) haze value
Use direct-reading haze value analyzer (the smart mechanism of Toyo Co., Ltd. do produce direct-reading haze value analyzer (No.206)), measured haze value (%) as optical characteristics.
(6) the visibility evaluation of display image
The surperficial material that display is used is installed on display,, is divided following four grades, carried out functional evaluation with visual to the visibility of display image.
4: distinctness; 3: relatively distincter; 2: owe distinct slightly; 1: the difficult identification of image
(7) dimming performance
On the surface of meticulous display of height or high meticulous touch-screen, the surperficial material that display is used is set, with the twinkling situation of visualization, divide following Three Estate, estimated the dimming performance.
3: non-dazzing; 2: more or less twinkling; 1: have twinkling;
(Production Example 1)
(preparation of polycyclohexyl methacrylate)
In the 300ml of three belt stirrers flask, add the 75g methylisobutylketone, under with the nitrogen purge condition, be warming up to 70 ℃.After arriving 70 ℃, with 25g cyclohexyl methacrylate and 0.81g polymerization initiator PERBUTYLPV (NOF Corp produces, 71% Shellsol dilution product), each minute, three parts of usefulness dripped in one hour.After dropwising, under 70 ℃, carry out polyase 13 hour again, then be warmed up to 80 ℃, continue polyase 13 hour.After this cooling finishes polymerization.Then, be added drop-wise in the methyl alcohol, precipitation obtains polycyclohexyl methacrylate again.Press the result that gel permeation chromatography (GPC) method is measured, its quality mean molecular weight is 26,000, and number average molecular weight is 9,000.
(embodiment 1)
(being used to form the constituent of antiglare layer)
Six functional acrylic carbamates
(The Nippon Synthetic Chemical Industry Co., Ltd produces, purple light UV-7600B) 60 mass parts
Trimethylolpropane triacrylate 10 mass parts
Cyclohexyl methacrylate 30 mass parts of Production Example 1
The crosslinked polystyrene particulate
(Soken Chemical ﹠ Engineering Co., Ltd. produces, SX-130H; Mean grain size 1.3 μ m) 3 mass parts
1-hydroxy-cyclohexyl phenyl ketone 3 mass parts
Methylisobutylketone 150 mass parts
To be used to form the constituent of antiglare layer, be coated on the PET film that thickness is 100 μ m with roll coater (roll coater) as transparent base, drying is 2 minutes under 80 ℃, so that its dry film thickness is 5 μ m.After this,, make it to solidify, form the individual layer antiglare layer good with respect to the compatibility that comes from the biosome lipid components with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation (accumulative total light quantity 400mJ/cm2).So make the surperficial material that display is used.The Sm of this antiglare layer is 230 μ m, and Ra is 0.20 μ m, and Rz is 1.3 μ m, and 60 degree gloss numbers are 90%, and the haze value of the surperficial material that display is used is 5.8%.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, it is on 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot) that display is pasted resolution with surperficial material, makes touch-screen.The surface energy of this touch-screen antiglare layer is 38mN/m, and the showy difficulty of fingerprint trace is evaluated as 3.In addition, the visibility of display image is evaluated as 3, and the dimming performance is 2.
(embodiment 2)
As the constituent that is used to form antiglare layer, except using 5 mass parts crosslinked polystyrenes, other steps similarly to Example 1 make the surperficial material that display is used.The Sm of gained antiglare layer is 150 μ m, and Ra is 0.16 μ m, and Rz is 1.2 μ m, and 60 degree gloss numbers are 89%, and the haze value of the surperficial material that display is used is 9.0%.
(embodiment 3)
(being used to form the constituent of antiglare layer)
Six functional acrylic carbamates
(The Nippon Synthetic Chemical Industry Co., Ltd produces, purple light UV-7600B) 70 mass parts
Trimethylolpropane triacrylate 10 mass parts
Polycyclohexyl methacrylate 20 mass parts
The crosslinked polystyrene particulate
(Soken Chemical ﹠ Engineering Co., Ltd. produces, SX-130H; Mean grain size 1.3 μ m) 5 mass parts
1-hydroxy-cyclohexyl phenyl ketone 3 mass parts
Methylisobutylketone 150 mass parts
To be used to form the constituent of antiglare layer, be coated on the PET film that thickness is 100 μ m with roll coater as transparent base, drying is 2 minutes under 80 ℃, so that its dry film thickness is 5 μ m.After this,, make it to solidify, form the individual layer antiglare layer good with respect to the compatibility that comes from the biosome lipid components with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation (accumulative total light quantity 400mJ/cm2).So make the surperficial material that display is used.The Sm of this antiglare layer is that 90 μ m, Ra are 0.17 μ m, and Rz is 1.2 μ m, and 60 degree gloss numbers are 80%, and the haze value of the surperficial material that display is used is 10.0%.
Then, on the male and fomale(M﹠F) of PET film and the surface of an opposite side, form the adhesive layer of propylene base system cementing agent.Then, to paste resolution be on 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot), to make touch-screen to the surperficial material that display is used.The surface energy of this touch-screen antiglare layer is 34mN/m, and the showy difficulty of fingerprint trace is evaluated as 3.In addition, the visibility of display image is evaluated as 4, and the dimming performance is 3.
(embodiment 4)
(being used to form the resin combination of light diffusion layer)
Six functional acrylic carbamates
(The Nippon Synthetic Chemical Industry Co., Ltd produces, purple light UV-7600B) 60 mass parts
Trimethylolpropane triacrylate 10 mass parts
Polymethylmethacrylate 30 mass parts
The crosslinked polystyrene particulate
(Soken Chemical ﹠ Engineering Co., Ltd. produces, SX-130H; Mean grain size 1.3 μ m) 1 mass parts
1-hydroxy-cyclohexyl phenyl ketone 3 mass parts
Methylisobutylketone 150 mass parts
(being used to form the constituent of antiglare layer)
Six functional acrylic carbamates
(The Nippon Synthetic Chemical Industry Co., Ltd produces, purple light UV-7600B) 60 mass parts
Trimethylolpropane triacrylate 10 mass parts
Polycyclohexyl methacrylate 30 mass parts
The crosslinked polystyrene particulate
(Soken Chemical ﹠ Engineering Co., Ltd. produces, SX-130H; Mean grain size 1.3 μ m) 5 mass parts
1-hydroxy-cyclohexyl phenyl ketone 3 mass parts
Methylisobutylketone 150 mass parts
To be used to form the resin combination of above-mentioned light diffusion layer, be coated on the PET film that thickness is 100 μ m with roll coater, drying is 2 minutes under 80 ℃, so that its dry film thickness is 5 μ m.After this,, make it to solidify, formed light diffusion layer with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation (accumulative total light quantity 400mJ/cm2).
Then, on light diffusion layer, with the above-mentioned resin combination that is used to form antiglare layer, be coated on the PET film that thickness is 100 μ m with roll coater, drying is 2 minutes under 80 ℃, so that its dry film thickness is 2.5 μ m.After this,, make it to solidify, formed light diffusion layer with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation (accumulative total light quantity 400mJ/cm2).After this, form antiglare layer with same condition, making dry film thickness is 2.5 μ m.So make the surperficial material that display is used.The Sm of resulting antiglare layer is 80 μ m, and Ra is 0.15 μ m, and Rz is 1.2 μ m, and 60 degree gloss numbers are 73%, and display is 30.0% with the haze value of surperficial material.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, it is on 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot) that display is pasted resolution with surperficial material, makes touch-screen.The surface energy of antiglare layer is 37mN/m in this touch-screen, and the showy difficulty of fingerprint trace is evaluated as 4.In addition, the visibility of display image is evaluated as 3, and the dimming performance is 3.
(embodiment 5)
As the constituent that is used to form antiglare layer, except using crosslinked polystyrene particulate 5 mass parts, dry film thickness is made as beyond the 3.5 μ m, other make the surperficial material that display is used by similarly to Example 1 step.The Sm of this antiglare layer is 60 μ m, and Ra is 0.16 μ m, and Rz is 1.2 μ m, and 60 degree glossiness are 60%, and display is 10.1% with the haze value of surperficial material.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, it is that 15 inches, general designation WU * GA of 160dpi (150 μ m/dot) show on the front face of LCD body that the surperficial material that display is used pastes resolution, makes LCD.The surface energy of the antiglare layer in this LCD is 38mN/m, and the showy difficulty of fingerprint trace is evaluated as 4.In addition, the visibility of display image is evaluated as 4, and the dimming performance is 3.
(embodiment 6)
As the constituent that is used to form antiglare layer, except using crosslinked polystyrene particulate 20 mass parts, dry film thickness is made as beyond the 3.5 μ m, other make the surperficial material that display is used by similarly to Example 1 step.The Sm of this antiglare layer is 55 μ m, and Ra is 0.17 μ m, and Rz is 1.3 μ m, and 60 degree glossiness are 56%, and display is 20.0% with the haze value of surperficial material.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, the surperficial material that display is used pastes resolution and shows on the front face of LCD body as 15 inches, general designation WU * GA of 160dpi (150 μ m/dot), makes LCD.The surface energy of the antiglare layer in this LCD is 38mN/m, and the showy difficulty of fingerprint trace is evaluated as 4.In addition, the visibility of display image is evaluated as 4, and the dimming performance is 3.
(embodiment 7)
As the constituent that is used to form antiglare layer, except that the film (TAC film) that has adopted thick Triafol T (TAC) resinoid of 80 μ m to produce, other make the surperficial material that display is used by method similarly to Example 5.The Sm of this antiglare layer is 65 μ m, and Ra is 0.15 μ m, and Rz is 1.2 μ m, and 60 degree glossiness are 63%, and display is 12.0% with the haze value of surperficial material.
Then, on the surface of the antiglare layer and an opposite side of TAC film, form the adhesive layer of propylene base system cementing agent, and it is sticked on the light polarizing film.Then, to paste resolution be that 15 inches, general designation WU * GA of 160dpi (150 μ m/dot) show and make LCD in the front of LCD body to the surperficial material that display is used.The surface energy of the antiglare layer in this LCD is 37mN/m, and the showy difficulty of fingerprint trace is evaluated as 4.In addition, the visibility of display image is evaluated as 4, and the dimming performance is 3.
(embodiment 8)
Six functional acrylic carbamates
(The Nippon Synthetic Chemical Industry Co., Ltd produces, purple light UV-7600B) 0.6 mass parts
Trimethylolpropane triacrylate 0.1 mass parts
Polycyclohexyl methacrylate 0.3 mass parts
1-hydroxy-cyclohexyl phenyl ketone 0.03 mass parts
Methylisobutylketone 100 mass parts
Mix above-mentioned raw materials, making formation molten with fingerprint trace is the tectal paint of one.On the other hand, on commercially available AG film (Janpanese Printing Co., Ltd's production), adopt dip coating to apply above-mentioned paint, 70 ℃ of following dry 60 seconds.After this, with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation under stream of nitrogen gas (accumulative total light quantity 400mJ/cm2), form buckle layer and antiglare layer, antiglare layer is provided with respect to the lipid components compatibility good overburden that comes from biosome.So make the surperficial material that display is used.The Sm of resulting antiglare layer is 80 μ m, and Ra is 0.15 μ m, and Rz is 1.1 μ m, and 60 degree gloss numbers are 91%, and the haze value of the surperficial material that display is used is 6.0%.To apply the identical condition of condition with buckle layer, apply, solidify at level and smooth PET, the thickness that gained is filmed, the reflection beam splitting film thickness gauge FE-3000 that Shi Yong Otsuka Electronics Co., Ltd. produces measures, and its result is thickness 60nm.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, to paste resolution be on 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot), to make touch-screen to the surperficial material that display is used.The surface energy of this touch-screen antiglare layer is 37mN/m, and the showy difficulty of fingerprint trace is evaluated as 4.In addition, the visibility of display image is evaluated as 4, and the dimming performance is 3.
(embodiment 9)
Trimethylolpropane triacrylate 0.8 mass parts
Polycyclohexyl methacrylate 0.2 mass parts
2-acryloyl group ethoxy-2-hydroxyethyl phthalic acid 0.03 mass parts
1-hydroxy-cyclohexyl phenyl ketone 0.02 mass parts
Methylisobutylketone 150 mass parts
Mix above-mentioned raw materials, making formation molten with fingerprint trace is the overlayer agent of the clad of one.On the other hand, on commercially available AG film (Janpanese Printing Co., Ltd's production), adopt rolling method to apply above-mentioned overlayer agent, 70 ℃ of following dry 60 seconds, after this, with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation under stream of nitrogen gas (accumulative total light quantity 400mJ/cm2), form buckle layer and antiglare layer, antiglare layer is provided with respect to coming from biosome lipid components compatibility good overburden.So make the surperficial material that display is used.The Sm of gained antiglare layer is 91 μ m, and Ra is 0.14 μ m, and Rz is 1.1 μ m, and 60 degree gloss numbers are 90%, and display is 6.0% with the haze value of surperficial material.To apply the identical condition of condition with buckle layer, on level and smooth PET film, apply, solidify, the thickness that gained is filmed uses the FE-3000 type reflection beam splitting film thickness gauge of chiseling Electronics Co., Ltd's production greatly to measure, and its result is thickness 62nm.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, to paste resolution be on 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot), to make touch-screen to the surperficial material that display is used.The surface energy of antiglare layer is 37mN/m in this touch-screen, and the showy difficulty of fingerprint trace is evaluated as 4.In addition, the visibility of display image is evaluated as 4, and the dimming performance is 3.
As mentioned above, in embodiment 1～9, because the concavo-convex equispaced on antiglare layer surface is set at 20～300 μ m, the surface energy of antiglare layer is set at 30～70mN/m, display is set at 3～50% with the haze value of surperficial material, so the showy difficulty of fingerprint trace and the visibility of display are improved.And dazzling of display surface also can fully suppress.In addition, except touch-screen, the visibility of high meticulous liquid crystal panel also can fully improve.
(comparative example 1)
Pentaerythritol triacrylate 50 mass parts
Acrylic acid two cyclopentene esters 50 mass parts
1-hydroxy-cyclohexyl phenyl ketone 2 mass parts
Methyl ethyl ketone 150 mass parts
Mix above-mentioned raw materials, be coated in dip coating on the PET film of 100 μ m, drying is 2 minutes under 80 ℃, so that dry film thickness is 5 μ m.After this,, make it to solidify with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's productions) irradiation ultraviolet radiation (accumulative total light quantity 400mJ/cm2), make with respect to come from biosome lipid components compatibility well, do not have a concavo-convex planar film.So make the surperficial material that display is used.The Sm of this planar film is 12 μ m, and Ra is 0.01 μ m, and Rz is 0.1 μ m, and 60 degree glossiness are 135%, and display is 0.3% with the haze value of surperficial material.
Then, on the surface of the planar film and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, it is 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot) that the surperficial material that display is used pastes resolution, makes touch-screen.The showy difficulty of fingerprint trace is evaluated as 1 in this touch-screen.In addition, the visibility of display image is evaluated as 3, and the surface energy of gained planar film is 32mN/m, and the dimming performance is 3.
(comparative example 2)
(being used to form the constituent of antiglare layer)
Six functional acrylic carbamates
(The Nippon Synthetic Chemical Industry Co., Ltd produces, purple light UV-7600B) 85 mass parts
Trimethylolpropane triacrylate 15 mass parts
The crosslinked polystyrene particulate
(Soken Chemical ﹠ Engineering Co., Ltd. produces, SX-130H; Mean grain size 3.5 μ m) 3 mass parts
1-hydroxy-cyclohexyl phenyl ketone 3 mass parts
Methylisobutylketone 150 mass parts
To be used to form the constituent of antiglare layer, be coated on the PET film that thickness is 100 μ m with roll coater, drying is 2 minutes under 80 ℃, so that its dry film thickness is 5 μ m.After this,, make it to solidify, form with respect to coming from the good individual layer antiglare layer of biosome lipid components compatibility with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation (accumulative total light quantity 400mJ/cm2).So make the surperficial material that display is used.The Sm of this antiglare layer is 401 μ m, and Ra is 0.18 μ m, and Rz is 1.3 μ m, and 60 degree gloss numbers are 101%, and the haze value of the surperficial material that display is used is 7.5%.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, to paste resolution be on 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot), to make touch-screen to the surperficial material that display is used.The surface energy of antiglare layer is 32mN/m in this touch-screen, and the showy difficulty of fingerprint trace is evaluated as 2.In addition, the visibility of display image is evaluated as 2, and the dimming performance is 1.
(comparative example 3)
(being used to form the constituent of antiglare layer)
The six functional groups propenoic methyl carbamate
(The Nippon Synthetic Chemical Industry Co., Ltd produces, purple light UV-7600B) 85 mass parts
Trimethylolpropane triacrylate 15 mass parts
Methyl ethyl ketone 1 mass parts
The crosslinked polystyrene particulate
(Soken Chemical ﹠ Engineering Co., Ltd. produces, SX-350H; Mean grain size 3.5 μ m) 3 mass parts
1-hydroxy-cyclohexyl phenyl ketone 3 mass parts
Methylisobutylketone 150 mass parts
To be used to form the constituent of antiglare layer, be coated on the PET film that thickness is 100 μ m with roll coater, drying is 2 minutes under 80 ℃, so that its dry film thickness is 5 μ m.After this,, make it to solidify, formed with respect to coming from the good individual layer antiglare layer of biosome lipid components compatibility with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation (accumulative total light quantity 400mJ/cm2).So make the surperficial material that display is used.The Sm of this antiglare layer is 430 μ m, and Ra is 0.22 μ m, and Rz is 1.5 μ m, and 60 degree gloss numbers are 98%, and the haze value of the surperficial material that display is used is 8.3%.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, to paste resolution be on 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot), to make touch-screen to the surperficial material that display is used.The surface energy of antiglare layer is 25mN/m in this touch-screen, and the showy difficulty of fingerprint trace is evaluated as 1.In addition, the visibility of display image is evaluated as 2, and the dimming performance is 1.
(comparative example 4)
(being used to form the constituent of antiglare layer)
Six functional acrylic carbamates
(The Nippon Synthetic Chemical Industry Co., Ltd produces, purple light UV-7600B) 85 mass parts
Trimethylolpropane triacrylate 15 mass parts
The crosslinked polystyrene particulate
(Soken Chemical ﹠ Engineering Co., Ltd. produces, SX-350H; Mean grain size 3.5 μ m) 20 mass parts
1-hydroxy-cyclohexyl phenyl ketone 3 mass parts
Methylisobutylketone 150 mass parts
To be used to form the constituent of antiglare layer, be coated on the PET film that thickness is 100 μ m with roll coater, drying is 2 minutes under 80 ℃, so that its dry film thickness is 5 μ m.After this,, make it to solidify, form with respect to coming from the good individual layer antiglare layer of biosome lipid components compatibility with 120W high-pressure mercury-vapor lamp (Nippon Storage Battery Co., Ltd's production) irradiation ultraviolet radiation (accumulative total light quantity 400mJ/cm2).So make the surperficial material that display is used.The Sm of this antiglare layer is 200 μ m, and Ra is 0.45 μ m, and Rz is 3.5 μ m, and 60 degree gloss numbers are 80%, and the haze value of the surperficial material that display is used is 65%.
Then, on the surface of the antiglare layer and an opposite side of PET film, form the adhesive layer of propylene base system cementing agent.Then, to paste resolution be on 7 inches, the front face of the touch screen body of 160dpi (150 μ m/dot), to make touch-screen to the surperficial material that display is used.The surface energy of antiglare layer is 32mN/m in this touch-screen, and the showy difficulty of fingerprint trace is evaluated as 2.In addition, the visibility of display image is evaluated as 1, and the dimming performance is 1.
Because in comparative example 1～4, the concavo-convex equispaced on antiglare layer surface, antiglare layer surface energy and display are outside scope of the present invention with in the haze value of surperficial material certain, so the visibility of the showy difficulty of fingerprint trace and display has at least one not obtain effect.And that obtain is the situation result in the majority that can not suppress the twinkling phenomenon of display surface.
To present embodiment, also can do following change.
Also can constitute antiglare layer with a plurality of antiglare layer according to adjacent layer.
Also can be in embodiment 1～9, a plurality of functional layers of lamination are to bring into play different functions.
Can on the surperficial material that display is used, adhesive layer be set, and the surperficial material that adopts cementing agent etc. that display is used yet, be installed to the surface of display and constitute.
Also can consider the oil content except that fingerprint trace etc. comes from the lipid components of biosome, make the structure of the visibility that can improve display.
Following technological thought discloses in the above-described embodiment.
The concavo-convex equispaced (Sm) on above-mentioned antiglare layer surface is the surperficial material that the high meticulous display of 30～100 μ m is used.Adopt this formation, can effectively suppress twinkling, be applicable to high meticulous display.
Above-mentioned particulate is the surperficial material of using as the high meticulous display of plastics microballon.Adopt this formation, when being necessary to adjust the transparency and the refringence between the resin glue of antiglare layer, can be easy to set refractive index.
The 60 degree gloss numbers of representing above-mentioned antiglare layer surface gloss are the surperficial material that 50～80% high meticulous display is used.Adopt this formation, can improve anti-dazzle property, and improve and to prevent the effect of shining upon.
The arithmetic average roughness (Ra) on above-mentioned antiglare layer surface is the surperficial material that the high meticulous display of 0.01～0.2 μ m is used.Adopt this formation, can on the basis of the invention effect that claim 1 to 3 relates to, further suppress the phenomenon of dazzling, improve the visibility of display.
10 mean roughness (Rz) on above-mentioned antiglare layer surface are the surperficial material that the high meticulous display of 0.1～1.5 μ m is used.Adopt this formation, can on the basis of the invention effect that claim 1 to 3 relates to, further suppress to dazzle, improve the visibility of display.
Also comprise the surperficial material that the high meticulous display of the adhesive layer of being located at the above-mentioned transparent base back side is used.Adopt this formation, can be easy to display is pasted with surperficial material the surface of display.
Also comprise the surperficial material that the meticulous display of tectal height is used, above-mentioned overlayer is located on the above-mentioned antiglare layer, and has compatibility with respect to the lipid components that comes from biosome.Adopt this formation, can improve the compatibility that fingerprint trace etc. is come from the lipid components of biosome, and improve the visibility of display.

Claims (6)

1. one kind is configured in the surperficial material that high meticulous display that display surface uses is used, and it is characterized in that, comprises direct setting or is arranged on antiglare layer on the transparent base by functional layer; Above-mentioned antiglare layer possesses form concavo-convex on whole surface; Above-mentioned concavo-convex equispaced (Sm) is 20～300 μ m; The surface energy of above-mentioned antiglare layer is 30～70mN/m; Aforementioned display device is 3～50% with the haze value of surperficial material.
2. the surperficial material of using according to the high meticulous display of claim 1 record, it is characterized in that, above-mentioned antiglare layer by microparticulate in resin glue and form, the mean grain size of above-mentioned particulate is 0.1～10 μ m, the content of above-mentioned particulate is 0.5～30 quality % with respect to above-mentioned resin glue.
3. the surperficial material of using according to the high meticulous display of claim 1 record is characterized in that the above-mentioned functions layer is a light diffusion layer.
4. the surperficial material of using according to the high meticulous display of claim 2 record is characterized in that the above-mentioned functions layer is a light diffusion layer.
5. one kind high meticulous display is characterized in that, in the outmost surface of display, disposes the surperficial material of using to any one high meticulous display of putting down in writing of claim 4 according to claim 1.
6. one kind high meticulous touch-screen is characterized in that, in the outmost surface of touch-screen, disposes the surperficial material of using to any one high meticulous display of putting down in writing of claim 4 according to claim 1.
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TW200829961A (en) 2008-07-16

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