CN101524907A - Lamination sheet for optical uses and image display device - Google Patents
Lamination sheet for optical uses and image display device Download PDFInfo
- Publication number
- CN101524907A CN101524907A CN200910118579A CN200910118579A CN101524907A CN 101524907 A CN101524907 A CN 101524907A CN 200910118579 A CN200910118579 A CN 200910118579A CN 200910118579 A CN200910118579 A CN 200910118579A CN 101524907 A CN101524907 A CN 101524907A
- Authority
- CN
- China
- Prior art keywords
- layer
- mass parts
- strain
- lamination sheet
- particulate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Manufacturing & Machinery (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Laminated Bodies (AREA)
- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
The invention provides a lamination sheet, which is highly transparent, excellent in damage resistance and can prevent dust and other foreign matters from adhering to the lamination sheet for optical uses. In the lamination sheet, an easy-bonding layer (12) is formed on one side of a support body (11) constituted by polyester after biaxial extension; a protection layer (13) is formed on the other side of the support body (11); the protection layer (13) contains a polymer adhesion agent which has water solubility or water dispersibility, organic particulates, and an anstatic agent with betaine imidazolium skeleton and a sliding agent. So that the lamination sheet, which is highly transparent, excellent in damage resistance and can prevent dust and other foreign matters from adhering to the lamination sheet, is obtained. In addition, the uneven brightness is fewer by using the lamination sheet in diffusion sheet. In addition, the rate of positive brightness increases by using the lamination sheet in prism.
Description
Technical field
The present invention relates to a kind of lamination sheet for optical uses, relate in particular to the lamination sheet for optical uses that in optical functional components such as diffusion sheet, prismatic lens, uses with high permeability and outstanding optical characteristics, and with LCD, plasma display, OLED display or the image display devices such as surface field display (SED) and CRT monitor of this optical functional component as member of formation.
Background technology
As realizing the images with high image quality display unit, liquid crystal indicator (LCD), plasma display system (PDP), organic EL display etc. receive publicity.Wherein, LCD compares with other image display devices, and is thin and light, so obviously enlarge in big frame TV machine, portable demand with the use in the electronic instrument etc.LCD by will between glass plate, enclosing special liquid liquid crystal cells and polarization plates as the main composition member, change the direction of liquid crystal molecule to the liquid crystal cells applied voltage, increase and decrease the transmitance of light, and then show picture.In addition; in order to guarantee high image quality; to prevent that reflection of light or scattering etc. or protection polarization plates from being purpose, in LCD, use prismatic lens (prismsheet) or light diffusing sheet, antireflection sheet, hard smear (hard coat sheet) etc. to have the optical sheet of optical function.For example, in patent documentation 1, at length put down in writing light diffusing sheet.
Usually optical sheet is a main flow to be provided with stacked that optical functional layers such as light diffusion layer with light diffusing or optically focused, anti-reflection layer, hard conating form on the surface of the supporter that is made of transparent resin, forms the material of usefulness and its drying is made by coating optical functional layer on the surface of the supporter of carrying.
Stacked needs like this have high permeability.In addition, if adhere to foreign matter, damage etc. such as small dust from the teeth outwards, then the contrast of display degree descends, perhaps, brightness disproportionation takes place, and then image quality decrease, so, be preferably in lip-deep foreign matter, scar is less, perhaps, is difficult to adhere to from the teeth outwards foreign matter, damage.But when making stacked, coating material or transfer layer lamination or aggregation are finished on the surface of supporter stacked the time, on the surface of supporter foreign matter, scratches such as dust take place easily.In this case, thus known have in optical functional layer add particulate and improve the method that sliding suppresses the generation of damage.
For example, in patent documentation 2, proposed by following scheme, that is, the optical functional layer that is made of the polymer composition that includes the pure and mild small inorganic particles of polyester polyol or acrylic acid multielement is set, realizes stacked of generation of transparency height and dimming inequality.In addition, in patent documentation 3, proposed to include coating layer organic or that inorganic particles, adhesive and antiseize paste form fully, realized the transparency height, be difficult to stacked of damaged by at least one mask at supporter.
Patent documentation 1: TOHKEMY 2006-095980 communique
Patent documentation 2: TOHKEMY 2004-004598 communique
Patent documentation 3: Japanese Patent Application 2005-354908 communique
But, in patent documentation 2, although thereby can lower under the effect of heat or ultraviolet ray etc. the brightness disproportionation that deflection or variable color produce takes place, the damage that takes place in can not lowering when carrying etc.In addition, owing to add excessive particulate,, may damage sometimes so floating of the decline of transparency or particulate etc. takes place.Then, in patent documentation 3,, stayed the problem of the anti-wound property of the another side that improves supporter owing to can only improve the anti-wound property of the side that optical functional layer is set.
In addition, two inventions all can not be lowered the damage that the scratch of the adhering to of foreign matter such as dust, foreign matter causes.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of transmitance high and be difficult at foreign matters such as surface attachment dust, be difficult to injured and outstanding lamination sheet for optical uses and the image display devices of optical characteristics such as transmitance, brightness raising.
Lamination sheet for optical uses of the present invention is characterised in that, the optical functional layer on the one side that have supporter that the polyester through biaxial tension constitutes, is configured in described supporter and be configured in protective layer on the another side of described supporter; Protective layer wherein contains as the adhesive of water-soluble or aqueous dispersion polymers, organic fine particles and has the antistatic additive of the betaine system of imidazoles skeleton.
Described organic fine particles preferably is made of at least a in polystyrene, the polymethyl methacrylate.And then also the average grain diameter of preferred described organic fine particles is more than the 0.05 μ m, below the 20.0 μ m.
Preferably constitute as the adhesive of water-soluble or aqueous dispersion polymers by at least a in mylar, polyurethane resin, the acrylic resin.
In addition; described protective layer is preferably by particulate and contains layer and contain 2 layer laminates that the superficial layer on the layer constitutes at this particulate; particulate wherein contains layer and includes adhesive and organic fine particles as water-soluble or aqueous dispersion polymers, and superficial layer wherein includes as the adhesive of water-soluble or aqueous dispersion polymers and has the antistatic additive of the betaine system of imidazoles skeleton.
Image display device of the present invention is characterised in that to have described any one stacked.
If utilize stacked of the present invention; then will possess on the another side of the supporter that constitutes by polyester of biaxial tension, being provided with of easy adhesive linkage include as adhesive, the organic fine particles of water-soluble or aqueous dispersion polymers and have that the protective layer of antistatic additive of the betaine system of imidazoles skeleton forms stacked as optical sheet; if so for example be provided as the light diffusion layer of optical functional layer on easy adhesive linkage, the outstanding diffusion sheet of anti-wound property of lamp (light) side that then can be used as the main composition member of backlight (back light) mode at LCD uses.And then, owing to can utilize antistatic additive to improve static electricity resistance, adhering to of foreign matter becoming possibility so reduce dust etc., can realize simultaneously that anti-wound property and foreign matter adhere to prevent.In addition,, on easy adhesive linkage, be provided as the layers of prisms of optical functional layer, transmitance, prismatic lens that front face brightness is outstanding then can be provided if by adding the particulate of appropriate particle diameter.Like this, the transparency height can be provided, anti-wound property is outstanding stacked, can also provide the images with high image quality display unit by utilizing this stacked simultaneously.
Description of drawings
Fig. 1 is the summary sectional view of an example of stacked among expression the present invention.
Fig. 2 is that expression is with easy adhesive linkage and the protective layer summary sectional view as an example of stacked of 2 layers of structure.
Fig. 3 is the summary sectional view of an example that expression has the diffusion sheet of light diffusion layer.
Fig. 4 is that expression is with the approximate three-dimensional map of diffusion sheet as the backlight unit (unit) of member of formation.
Fig. 5 is the summary sectional view of an example of expression prismatic lens.
Fig. 6 is the schematic diagram of the summary of expression dandy roll (emboss roll).
Fig. 7 is the schematic diagram of formation of the manufacturing installation of expression prismatic lens.
Among the figure, 10, stacked of 17-, 11, the 21-supporter; 12, the easy adhesive linkage of 24-, 13,16, the 23-protective layer, the 14-particulate contains layer; the 15-superficial layer, the easy bonding ground floor of 18-, the easy bonding second layer of 19-; the 20-diffusion sheet; the 30-backlight unit, 40-prismatic lens manufacturing installation, 41-feeding sheet materials machine; the 42-apparatus for coating; the 43-dandy roll, 44-niproll (nip roll), 45-resin solidification device; the 46-stripper roll; 47-diaphragm feedway, 48-sheet material coiler device, 49-drying device; the H-diaphragm, the W-sheet material.
The specific embodiment
Below enumerate embodiment to stacked detailed description among the present invention.But, present embodiment is the preferred example that is suitable for of among the present invention, does not limit the present invention.
Fig. 1 is the summary sectional view of an example of stacked 10 among expression the present invention.Easy adhesive linkage 12 that has the supporter 11 that constitutes by polyester for stacked 10, is provided with in the one side of this supporter 11 and the protective layer 13 that is provided with at the another side of supporter 11.In addition; except formation shown in Figure 1; as shown in Figure 2; replace the protective layer 13 of 1 layer of structure; also can become and have stacked 17 of protective layer 16 that particulate contains layer 14 and 2 layers of structure of superficial layer 15; in addition, replace the easy adhesive linkage 12 of 1 layer of structure, also can become the easy adhesive linkage of the stepped construction of the easy bonding ground floor 18 and the easy bonding second layer 19.
[supporter]
The polyester that uses in the formation of supporter 11 is not particularly limited, can uses the known polyester that can in optical applications, use.Can specifically enumerate PETG, PEN, polybutylene terephthalate (PBT), PBN etc., from the viewpoint of cost or mechanical strength, preferred especially PETG.
Preferred control stretching ratio becomes more than the 30 μ m, below the 400 μ m thickness t 1 (μ m) of supporter 11.T1 more preferably 35 μ m above, below the 350 μ m.When such supporter 11 has the high grade of transparency also for light-duty and operability is outstanding.But, then blocked up if t1 surpasses 400 μ m on the contrary if t1 less than 30 μ m, then crosses thin and is difficult to operation, the difficulty thereby the miniaturization of image display device or lightness become, but also can cause the increase of manufacturing cost, so be not suitable for.
[easily adhesive linkage]
Easily thereby adhesive linkage 12 has the function that the cementability that improves surface of polyester improves the adhesive force of the optical functional layer that is provided with and supporter 11 thereon.The coating fluid that easy adhesive linkage 12 can be made of adhesive, curing agent, surfactant by the one side coating at the polyester supporter usually forms.Also can in easy adhesive linkage 12, add the antiseize pastes such as particulate, paraffin of organic or inorganic where necessary.
As long as the adhesive that uses in easy adhesive linkage 12 can improve the adhesive force with the polyester supporter, be not particularly limited, from the viewpoint of easy-adhesion, preferably use more than one of mylar, polyurethane resin, acrylic resin, styrene-butadiene resin.In addition, from the viewpoint of carrying capacity of environment, the adhesive of special preferred water dissolubility or water dispersible.
The formation method of commute adhesive linkage 12 is not particularly limited, and can suitably select known coating process according to purpose.For example can enumerate spin coater (spin coater), roll coater (roll coater), rod and be coated with machine (bar coater), curtain formula coating machine (curtain coater) etc.All methods all can make its drying form layer by be coated with the solution that includes the material that forms easy adhesive linkage on the face of needs after.At this, drying means is not particularly limited, can suitably select normally used method.At this moment, be more than 90 ℃, below 210 ℃ if make baking temperature, then can be not do not bring to add fire damage and carry out drying at short notice, so preferred to optical functional layer etc.More preferably more than 110 ℃, below 200 ℃.Baking temperature less than 90 ℃ situation under, insufficient with adhering to of supporter 11, drying time may be elongated.On the contrary, if surpass 210 ℃, then the distortion of polyester supporter may become greatly, so not preferred.In addition, in order not bring fire damage (damage) and to promote dryly at short notice, preferably under the temperature conditions of appropriateness, making drying time is more than 10 seconds, below 5 minutes, more preferably more than 20 seconds, below 3 minutes.
Easily the thickness t 2 (μ m) of adhesive linkage 12 can be controlled by adjusting coating weight.In order to make its transparency height and to have outstanding easy-adhesion, t2 is preferably more than the 0.01 μ m, below the 5 μ m.T2 more preferably 0.02 μ m above, below the 3 μ m.At this, if t2 is then thin excessively less than 0.01 μ m,, on the contrary,, then be difficult to keep the face matter of the coating thickness of homogeneous if t2 surpasses 5 μ m so be difficult to manifest easy-adhesion, and then, also cause the increase of manufacturing cost, so be not suitable for.In addition, easily adhesive linkage 12 can be individual layer, also can be the multilayer more than 2 layers.At this, under the situation that is multilayer, the thickness that whole layer thicknesses are added together is considered as t2.
[protective layer]
Protective layer 13 contains adhesive, organic fine particles and antistatic additive.The adhesive that uses in protective layer 13 uses water-soluble or aqueous dispersion polymers.As increasing the film auxiliary agent, also can contain the organic solvent below 20% of whole solvents.But, surpassing under the situation of 20% organic solvent containing, the quantitative change of splashing in atmosphere is many, on the environment and all not preferred on explosion-proof.The kind of polymer is not particularly limited so long as water-soluble or water dispersible gets final product, but preferably is made of at least a in mylar, polyurethane resin, the acrylic resin.Special preferred glass temperature is the polymer more than 40 ℃.Vitrification point less than 40 ℃ situation under because at room temperature softening, so be difficult to guarantee to have anti-wound property fully.In described polymer,, then can improve the adhesive strength with the interface of supporter 11, so preferred especially if use the polymer in molecule, have carboxyl.In addition, the polymer that uses as adhesive can use a kind separately, also can be mixed with two or more.For example, if the polymer of the acrylic resin that has carboxyl in molecule and the polymer of polyester system are used in mixing, then can obtain the protective layer 13 that anti-wound property is outstanding and adhesive strength is high.In addition, the molecular weight of polymer is not particularly limited, can uses the molecular weight that is used as adhesive usually.
Raw material to the particulate that can use in protective layer 13 are not particularly limited, preferred organic fine particles.If the use inorganic particles is then because its high rigidity and may damage the surface of other optical sheets of stack.As the raw material of organic fine particles, for example can enumerate polystyrene, polymethyl methacrylate, nylon resin, polyvinyl resin, acrylic resin, mylar, organic siliconresin, benzoguanamine resin etc.Wherein, polystyrene, polymethyl methacrylate are because to improve the effect of sliding outstanding and be low-cost, so preferably.
Which kind of raw material no matter, the average grain diameter of particulate all be preferably 0.05 μ m above, below the 20 μ m.More preferably 0.5 μ m above, below the 18 μ m, be preferably especially 1 μ m above, below the 15 μ m.Like this, thereby particulate disperses to guarantee high permeability equably, and the while can also be improved sliding.At this, if use average grain diameter to surpass the particulate of 20 μ m, then particulate becomes greatly from the possibility that coated film comes off, and is not suitable for.In addition, the addition of particulate is different because of average grain diameter, but is preferably 0.1mg/m
2More than, 1000mg/m
2Below, 0.5mg/m more preferably
2More than, 800mg/m
2Below.At this, if the addition of particulate is less than 0.1mg/m
2, then improve a little less than the effect of sliding, on the contrary, if surpass 1000mg/m
2, then light diffusing becomes big, may cause the function reduction of optical functional layer.The particle diameter of the particulate among the present invention is when utilizing SEM that particulate is taken and particulate is a diameter of a circle of the same area.So, average grain diameter is meant the mean value of the particle diameter that any 50 particulates are tried to achieve.
In addition, if use the particulate of the monodispersity of narrow diameter distribution, the particulate of the big particle diameter that the possibility that then comes off is high tails off, so preferred on quality is kept.In addition, if use the particle of monodispersity, then under lens (lens) effect of homogeneous, can realize improving the effect of optical property of the optical function sheet of use.
Antistatic additive among the present invention is meant the material of the sheet resistance of the protective layer that reduces stacked.Antistatic additive is preferably the compound of the betaine system with imidazoles skeleton.The antistatic additive of the anionic property of soap system, phosphoric acid system is because the effect of reduction sheet resistance is little, so essential adhesive relatively adds more measuring, thereby can cause the decline of film-strength.Equally, the effect of the reduction sheet resistance of the nonionic antistatic additive of fatty acid series, aliphatic amide system is also little.In addition, though the antistatic additive of cationic such as quaternary ammonium salt reduces the respond well of sheet resistance, show acidity usually, so the aqueous dispersion adhesive that mixes is generally nonionic, therefore the reduction of the stability of coating fluid takes place sometimes, thereby adhesive can condense when mixing.For example, if mix imidazolium chloride and have the acrylic resin latex (latex) of acrylic acid ammonium, thereby then can destroy the cohesion that disperses to take place adhesive most probably.
The addition of the antistatic additive of Shi Yonging is preferably 1～50 weight % of the solid constituent amount in the protective layer in the present invention, is preferably 3～40 weight % especially.Addition less than 1% situation under, do not see Table the abundant decline of face resistance, thereby can not realize anti-static effect.If addition surpasses 50 weight %, then the film hardness of adhesive layer reduces, thus anti-wound property reduction.
In addition, of the present invention is to use stacked or utilize temperature, the humidity of functional optical member of the present invention stacked to design as prerequisite of the present invention by adding sheet resistance that antistatic additive obtains, and for example under 23 ℃, 40%RH, surface resistivity is preferably 10
13Below/the, be preferably 10 especially
12Below/the.If surface resistivity surpasses 10
13/, the then charged dust that causes adheres to increase.
Protective layer 13 of the present invention contains as adhesive, the organic fine particles of water-soluble or aqueous dispersion polymers and the antistatic additive of betaine system with imidazoles skeleton as must composition; and in addition, also can add crosslinking agent, surfactant etc. where necessary.
As crosslinking agent, can use crosslinking agents such as epoxy system, melamine system, isocyanate-based, carbodiimides system.All solids composition in the relative protective layer of addition, preferred scope more than 1%, below 50%, the preferred especially scope more than 5%, below 40%.If addition less than 1%, then utilizes the improvement of film rerum natura of cross-linking effect insufficient, if surpass 50%, the deterioration of film rerum natura such as then take place that film becomes fragile.
As surfactant, can use the surfactant that known anion is, nonionic is, cation is.For example in " surfactant brief guide " (western youth, modern well is happy knows that a youth, large bamboo hat with a conical crown and broad brim well are just hiding volume industry books (strain) nineteen sixty distribution), surfactant is put down in writing.
The thickness t 3 of protective layer 13 is preferably more than the 0.02 μ m, below the 20 μ m, is preferably especially more than the 0.05 μ m, below the 15 μ m.If t3 is less than 0.02 μ m, then the confining force of static electricity resistance, anti-wound property, particulate may become insufficient, on the contrary, if t3 surpasses 20 μ m, then planar may the deterioration.In addition, protective layer 13 can be 1 layer, also can be stacked more than 2 layers.Under stacked situation more than 2 layers, the thickness summation of preferred holostrome satisfies described scope.
As shown in Figure 2; protective layer 16 also can be for being contained layer 14 and containing 2 layer laminates that the superficial layer 15 on the layer constitutes at this particulate by particulate; particulate wherein contains layer 14 adhesive and an organic fine particles that includes as water-soluble or aqueous dispersion polymers, and superficial layer 15 wherein includes as the adhesive of water-soluble or aqueous dispersion polymers and has the antistatic additive of the betaine system of imidazoles skeleton.Contain layer 14 and protective layer 15 by protective layer 16 being separated into particulate, compare, can further suppress the coming off of particulate, in addition, can also reduce the use amount of the antistatic additive that is used to obtain identical sheet resistance with the situation that is 1 layer.
Coating process to protective layer 13 of the present invention is not particularly limited.As coating process, can use rod to be coated with the machine coating, slide known method such as being coated with machine (slide coater) coating.As with the described coating solvent that uses that must composition mix, the water that the preferred ambient load is little, and, can mix the solvent of system such as the organic solvents that use methyl alcohol, isopropyl alcohol, methyl ethyl ketone for the improvement that realizes the coated face situation, the stability of coating fluid.
Coating can carried out after unidirectional direction has stretched supporter 12, also can carry out after biaxial tension.But,, preferably after biaxial tension, be coated with for the recovery that makes matrix (base) ear after the horizontal stretching becomes possibility.
[optical functional layer]
By on stacked 10 easy adhesive linkage 12, optical functional layer being set, form optical functional component with perfect optics function.With regard to optical functional layer, can be according to application target suitably selective light diffusion layer, anti-reflection layer, layers of prisms, antiglare layer etc.Except LCD, this optical functional component also can use in other display unit such as PDP, OLED display, CRT monitor.In addition, by outstanding optical functional layers of mechanical strength such as formation hard conatings, can give hardness with not destroying optical function or make dirt be difficult to adhere to.
If utilize the present invention,, can easily form diffusion sheet 20 as shown in Figure 3 as an example of optical component.This diffusion sheet 20 have the supporter 21 that constitutes by polyester, the light diffusion layer 22 that on the easy adhesive linkage 24 of the one side that is disposed at supporter 21, forms and with these light diffusion layer 22 opposed protective layers that on the another side of supporter 21, dispose 23.The Thickness Design of each layer is become to satisfy scope illustrated in fig. 1.
Light diffusion layer 22 contains adhesive and particulate.At this, since in addition the anti-wound property when operating, be used to wipe away the solvent resistance that is attached to lip-deep dust or dirt and will this stacked 11 punching be processed into the situation of the form of regulation, so, preferably contain crosslinking agent in order to guarantee and the high-adhesive-strength of supporter 11.In addition, light diffusion layer 22 can be 1 layer, also can become the stepped construction more than 2 layers as required.Under situation about becoming more than 2 layers, needn't form have same optical function the layer and can suitably select.
The adhesive that uses in light diffusion layer 22 is not particularly limited, can suitably selects according to purpose.As preference, can use known polymer such as acrylic acid series, polyester system, polyurethane series.Wherein, if use the homopolymers or the copolymer of at least a composition as monomer include acrylate and methacrylate, then can guarantee the outstanding optical characteristics and the high level of transparency, so preferred.
As described homopolymers or copolymer, for example can enumerate (methyl) acrylic resin, vinyl acetate resin, ethane-acetic acid ethyenyl ester copolymer resin, vinyl chloride resin, vinyl chloride-vinylidene chloride copolymer resin, butyral resin, organic siliconresin, mylar, pvdf resin, nitrocellulose resin, styrene resin, styrene-acrylonitrile resin, polyurethane resin, polyethylene, polypropylene, haloflex, rosin derivative etc.They can be used singly or in combination of two or more.Wherein, the possibility of dissolving of (methyl) acrylic resin or swelling organic filler is little, so preferred especially.And then, also preferred use can with the polymer of described crosslinking agent reaction.Be under the situation of isocyanate-based crosslinking agent for example, can use polymer with hydroxyl, amino, carboxyl etc. at crosslinking agent.In addition, these adhesives can be used alone, but also also mix together.
The particulate that in light diffusion layer 22, has contained the effect of the light diffusing agent that makes the light diffusion that sees through.Particulate is not particularly limited, can suitably selects,, can enumerate organic fillers such as plexiglass particle, melamine resin particle, styrene resin beads, organic siliconresin particle as preferred concrete example according to purpose.These can be used alone or two or more kinds may be used.This organic filler preferably has cross-linked structure, especially preferably has the plexiglass particle of cross-linked structure.
The average grain diameter of particulate be preferably 3 μ m above, below the 100 μ m, more preferably 5 μ m above, below the 25 μ m.If average grain diameter is less than 3 μ m, then the light diffusion energy becomes insufficient.On the contrary, then excessive if average grain diameter surpasses 100 μ m, so can hinder seeing through of light on the contrary, in addition, also be difficult to bring into play function as light diffusing agent.In addition, the settling velocity of particulate becomes big in coating fluid, so the precipitation of particulate takes place in pipe arrangement that uses in liquor charging or the surge tank (buffer tank).In addition, the method for trying to achieve of average grain diameter is same as described above, so omit explanation.
The adhesive of relative 100 mass parts, the addition of particulate be preferably 100 mass parts above, below 500 mass parts, more preferably 200 mass parts above, below 400 mass parts.If the addition of particulate less than 100 mass parts, then can not be brought into play the function as light diffusing agent sometimes, on the contrary, if surpass 500 mass parts, then particulate may become and be difficult to disperse.In addition, in the present invention, except described particulate, also can and use other particulates.For example, the plexiglass particle that described relatively 10 μ m are above, 25 μ m are following, preferred is silica, calcium carbonate, aluminium oxide, the zirconia that 1 μ m is above, 5 μ m are following with average grain diameter also.As and the addition of the particulate of usefulness, the 1 quality % of particulate that preferably becomes main component is above, below the 20 quality %.
Light diffusion layer 22 preferably contains the crosslinking agent in order to give solvent resistance or to add with the adhesive force of supporter.Crosslinking agent can use epoxy system, isocyanate-based, melamine Xi, oxazoline system, carbodiimides system etc.Wherein, from described purpose, preferably use the isocyanate-based crosslinking agent.The adhesive of relative 100 mass parts, the content of the crosslinking agent in the light diffusion layer 22 are preferably more than 10 mass parts, more preferably 30 mass parts above, below 400 mass parts.If the content of crosslinking agent is less than 10 mass parts, the light diffusion layer 22 easy damaged that may become then.In addition, be made as a in the quality with crosslinking agent, when the quality of adhesive is made as b, the mass ratio a/b of crosslinking agent in the light diffusion layer 22 and adhesive is preferably more than 1, below 20, more preferably more than 3, below 15, be preferably especially more than 5, below 10.
Forming under the situation of light diffusion layer 22, the solvent that mixes with material such as adhesive is being not particularly limited.As the preference of solvent, can enumerate (a) ketone, (b) ethers, (c) alcohols, (d) ester class, (e) polyol derivative class, (f) carboxylic acids etc.About their preference, below with proportion (g/cm
3) enumerate together.The quality that proportion is meant the object material with its ratio with the quality of the water of volume, at this,, omit the record unit at the back of compound name bracket mark.
As (a) ketone, for example can enumerate acetylacetone,2,4-pentanedione (0.975), cyclohexanone (0.945), methyl cyclohexanone (0.921), acetone (0.791), diethyl ketone (0.816), methyl ethyl ketone (0.805), methyl normal-butyl ketone (0.821) methyl n-pro-pyl ketone (0.806) etc.
As (b) ethers, for example can enumerate 1,4-diox (1.039), oxolane (0.889) etc.
As (c) alcohols, for example can enumerate cyclohexanol (0.949), 3-amylalcohol (1.046), 2 methyl cyclohexanol (0.925), isopropyl alcohol (0.785), ethanol (0.791), n-butanol (0.810), the tert-butyl alcohol (0.787), 1-propyl alcohol (0.804), methyl alcohol (0.792) etc.
As (d) ester class, for example can enumerate isoamyl formate (0.877), iso-butyl formate (0.885), Ethyl formate (0.917), butyl formate (0.892), propyl formate (0.901), hexyl formate (0.990), benzyl formate (1.081), methyl formate (0.987), allyl acetate (0.927), isoamyl acetate (0.871), isobutyl acetate (0.873), isopropyl acetate (0.877), ethyl acetate (0.901), acetate 2-Octyl Nitrite (0.827), cyclohexyl acetate (0.97), n-butyl acetate (0.876), tert-butyl acetate (0.875), propyl acetate (0.887), methyl acetate (0.934), ethyl propionate (0.896), butyl propionate (0.877), methyl propionate (0.916) etc.
As (e) polyol derivative class, for example can enumerate ethoxyethyl acetate(EA) (0.975), glycol monomethyl ether (0.964), ethylene glycol monomethyl ether acetate (1.009), ethylene glycol one methoxymethyl ether (1.04), propylene glycol monoethyl ether (0.898), propane diols monomethyl ether (0.923) etc.
As (f) carboxylic acids, for example can enumerate isobutyric acid (0.948), caproic acid (1.049) etc.
Wherein, from being coated with the dry easily viewpoint in back, preferred boiling point is the organic solvent below 150 ℃, special preferable methyl ethyl ketone, cyclohexanone, 1,4-diox, methyl glycol acetate.
The main composition member of the backlight unit of preferably conduct formation of VELOCITY DIFFUSION sheet 20 LCD utilizes as described later.Fig. 4 is the approximate three-dimensional map of the common backlight unit 30 of expression.Wherein, numerous and diverse for fear of drawing only illustrates the main composition member, and in fact, also has a plurality of members in addition.In the member that constitutes backlight unit 30, post a plurality of lamps of internal configurations (lamp) 35 of the frame 33 of reflector plate 32 in the inboard, it becomes the light source that illuminates liquid crystal cells.Configuration diffuser plate 36 is being pasted in tight top at this lamp (lamp) 35, and then, dispose diffusion sheet 20, prismatic lens 38 thereon successively.Each member is fixed under the state that is sandwiched by after-frame 33 and preceding frame 39.Utilize the diffusion sheet 20 that the present invention obtains since have outstanding light diffusion function and the anti-wound property of simultaneously opposite support dignity with light diffusion layer outstanding, so the high quality images that does not have decrease of contrast or brightness disproportionation can be provided.
In addition, also can replace described light diffusion layer and on easy adhesive linkage 24, layers of prisms is set and makes prismatic lens.Manufacture method to prismatic lens is not particularly limited; for example can utilize by on stacked 10 the coated face that is coated with liquid radiation curing composition on the easy adhesive linkage 24, adhering to male and female mold; from the protective layer side ultraviolet isoradial that exposes; the radiation curing composition is solidified, thereby the method for the surface configuration on this male and female mold surface of transfer printing is made on the surface of easy adhesive linkage 24.
[embodiment]
Below in order to describe the present invention in detail, as embodiment, carry out the experiment among the present invention.But, the present invention is not limited to form shown here.Wherein, experiment 1～6th, the embodiment among the present invention, experiment 7～10th, comparative example.
[experiment 1]
In experiment 1; one side at the supporter that is made of polyester forms easy bonding ground floor; form the easy bonding second layer thereon; as easy adhesive linkage; and then; form particulate at another side and contain layer and the superficial layer on it,, thereby make stacked as protective layer with the opposed supporter of easy adhesive linkage.
[supporter]
The PETG of the Ge inherent viscosity that polycondensation forms as catalyst 0.66 (below be recited as PET) resin drying to moisture content is become 50ppm, make its fusion in the inside that heater (heater) temperature is adjusted into extruder roughly certain in 280～300 ℃ scope then.Then, from die head (die) to by this PET resin of fusion of the chilled roll of applied voltage (chill roll) ejection, after becoming amorphous film, throughput direction to film is stretched to 3.1 times with it, then be stretched to 3.9 times, obtain the supporter that thickness is 188 μ m to its width.
[easy bonding ground floor]
During the condition of dividing with transporting velocity 80m/ is carried described supporter, at 403J/m
2Condition under Corona discharge Treatment is carried out on its surface.Then, utilize rod to be coated with the method coating, form easy bonding ground floor by the following coating fluid that constitutes of forming.At this, coating weight is 7.4cc/m
2, drying is 1 minute under 185 ℃.
[easy bonding ground floor coating fluid]
Vestopal binder 164.23 mass parts
(mutual induction chemical industry (strain) system, Plus coat Z687, solid constituent 25%)
Crosslinking agent 20.17 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.13 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, solid constituent 100%)
Surfactant 20.16 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Distilled water is added into to amount to becomes 1000 mass parts
[the easy bonding second layer]
During the condition of dividing with transporting velocity 80m/ is carried the described supporter that is coated with easy bonding ground floor, at 70.3J/m
2Under the condition Corona discharge Treatment is carried out on its surface.Then, on treated side, utilize rod to be coated with the method coating, form the easy bonding second layer, obtain the easy adhesive linkage of thickness 0.4 μ m by the following coating fluid that constitutes of forming.At this, coating weight is 7.1cc/m
2, drying is 1 minute under 1455 ℃.
[easy bonding second layer coating fluid]
Polyurethane resin adhesive 24.29 mass parts
(Mitsui Chemicals (strain) system, OLESTER UD350, solid constituent 38%)
Acrylic resin adhesive 3.36 mass parts
(Daicel chemical industry (strain) system, EM-48D, solid constituent 27.5%)
Crosslinking agent 4.61 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.12 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, nonionic, solid constituent 100%)
Surfactant 2 0.15 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Additive (filler) 1.54 mass parts
(Japanese Aerosil (strain) system, Aerosil OX-50, solid constituent 10%)
Additive (filler) 3.80 mass parts
(daily output chemistry (strain) system, ス ノ-テ Star Network ス XL, solid constituent 40%)
Additive (antiseize paste) 1.54 mass parts
(Zhong jing grease (strain) system, Serozol 524, solid constituent 30%)
Distilled water is added into to amount to becomes 1000 mass parts
[particulate contains layer]
Then, the condition of dividing with transporting velocity 80m/ carries this supporter and while at 403J/m
2Condition under to carrying out Corona discharge Treatment with the face of the opposite supporter of the face that is formed with easy adhesive linkage.Then, utilize rod to be coated with the method coating by the following coating fluid that constitutes of forming, coating weight is 8.9cc/m
2, under 185 ℃ dry 1 minute to it.
[particulate contains layer coating fluid]
Vestopal binder 134.03 mass parts
(mutual induction chemical industry (strain) system, Plus coat Z687, solid constituent 25%)
Crosslinking agent 16.46 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.11 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, solid constituent 100%)
Surfactant 2 0.27 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Acrylic acid particulate 0.92 mass parts
(ancestor grinds chemistry (strain) system, MX-501, average grain diameter 5.4 μ m, CV value 9.0)
Distilled water is added into to amount to becomes 1000 mass parts
[superficial layer]
Carry in the condition of dividing to be coated with during described particulate contains the supporter of layer, at 70.3J/m with transporting velocity 80m/
2Condition under to particulate contain the layer the surface carry out Corona discharge Treatment.Then, utilize rod to be coated with method and be coated with on this treated side by the following coating fluid that constitutes of forming, form superficial layer, the thickness that obtains except the particulate part is the protective layer of 0.6 μ m.At this, coating weight is 8.7cc/m
2, drying is 1 minute under 145 ℃, obtains stacked.
[superficial layer coating fluid]
Acrylic resin adhesive 7.82 mass parts
(Daicel chemical industry (strain) system, EM-48D, solid constituent 27.5%)
Vestopal binder 71.64 mass parts
((strain) system, Bironal MD-1245, solid constituent 30% spin in Japan)
Crosslinking agent 10.77 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.29 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, nonionic, solid constituent 100%)
Surfactant 2 0.36 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Additive (antiseize paste) 5.95 mass parts
(Zhong jing grease (strain) system, Serozol 524, solid constituent 30%)
Antistatic additive 12.41 mass parts
(ラ イ オ Application (strain) system, エ Na ジ コ-Le CNS, beet alkalescence, solid constituent 38%)
Additive 0.04 mass parts
(SHIN-ETSU HANTOTAI's chemical industry (strain) system, TC-5, solid constituent 100%)
Distilled water is added into to amount to becomes 1000 mass parts
Utilize following mensuration, stacked of finishing measured total light transmittance, surface resistivity and anti-wound property.
[total light transmittance mensuration]
Use nephelometer (haze meter) (NDH-1001P, Japanese electric look industry (strain)), the method for putting down in writing in the turbidity value based on JIS-K-6714-1977 is measured the total light transmittance as the index of the stacked transmitance of finishing.
[anti-wound property]
Under 25 ℃, the atmosphere of 60%RH, stacked of finishing carried out damping in 24 hours, then as sample, profit is measured its scratching intensity in the following method.At first, utilize the sapphire pin of 0.5mmR, make to load in 0～100g to change, and the surface of while protective layer of scratching sample under the speed 1cm/ condition of second.At this moment, having or not of scar detected on its surface, with utilize visual original observed to the load of scar as minimum load, with the index of this value as scratching intensity.At this moment, the scratching intensity that satisfies the goods level is zero, can not satisfy the goods level to be *.
[surface resistivity mensuration]
Under 23 ℃, the atmosphere of 40%RH; as determinator; use and be connected the device that Resistivity Chamber R12704A ((strain) Ai Dewan system) forms with Digital ElectrometerR8252 ((strain) Ai Dewan system); based on JIS K 6911, to the stacked surface resistivity of finishing of measuring protective layer.
[experiment 2]
In experiment 2, the coating fluid of superficial layer is changed as described below, in addition, all with test 1 making layer lamination similarly.The thickness except the particulate part of the protective layer that wherein, obtains is 0.6 μ m.
[superficial layer coating fluid]
Acrylic resin adhesive 7.82 mass parts
(Daicel chemical industry (strain) system, EM-48D, solid constituent 27.5%)
Polyurethane resin adhesive 56.56 mass parts
(Mitsui Chemicals (strain) system, OLESTER UD350, solid constituent 38%)
Crosslinking agent 10.77 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.29 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, nonionic, solid constituent 100%)
Surfactant 2 0.36 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Additive (antiseize paste) 5.95 mass parts
(Zhong jing grease (strain) system, Serozol 524, solid constituent 30%)
Antistatic additive 15.51 mass parts
(ラ イ オ Application (strain) system, エ Na ジ コ-Le CNS, beet alkalescence, solid constituent 38%)
Additive 0.04 mass parts
(SHIN-ETSU HANTOTAI's chemical industry (strain) system, TC-5, solid constituent 100%)
Distilled water is added into to amount to becomes 1000 mass parts
[experiment 3]
In experiment 3, the coating fluid of superficial layer is changed as described below, in addition, all with test 1 making layer lamination similarly.The thickness except the particulate part of the protective layer that wherein, obtains is 0.6 μ m.
[superficial layer coating fluid]
Acrylic resin adhesive 78.16 mass parts
(Daicel chemical industry (strain) system, EM-48D, solid constituent 27.5%)
Crosslinking agent 10.77 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.29 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, nonionic, solid constituent 100%)
Surfactant 2 0.36 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Additive (antiseize paste) 5.95 mass parts
(Zhong jing grease (strain) system, Serozol 524, solid constituent 30%)
Antistatic additive 15.51 mass parts
(ラ イ オ Application (strain) system, エ Na ジ コ-Le CNS, beet alkalescence, solid constituent 38%)
Additive 0.04 mass parts
(SHIN-ETSU HANTOTAI's chemical industry (strain) system, TC-5, solid constituent 100%)
Distilled water is added into to amount to becomes 1000 mass parts
[experiment 4]
In experiment 4, the coating fluid of superficial layer is changed as described below, in addition, all with test 1 making layer lamination similarly.The thickness except the particulate part of the protective layer that wherein, obtains is 1.3 μ m.
[superficial layer coating fluid]
Acrylic resin adhesive 23.25 mass parts
(Daicel chemical industry (strain) system, EM-48D, solid constituent 27.5%)
Vestopal binder 213.09 mass parts
((strain) system, Bironal MD-1245, solid constituent 30% spin in Japan)
Crosslinking agent 32.03 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.85 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, nonionic, solid constituent 100%)
Surfactant 2 1.07 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Additive (antiseize paste) 17.71 mass parts
(Zhong jing grease (strain) system, Serozol 524, solid constituent 30%)
Antistatic additive 46.14 mass parts
(ラ イ オ Application (strain) system, エ Na ジ コ-Le CNS, beet alkalescence, solid constituent 38%)
Distilled water is added into to amount to becomes 1000 mass parts
[experiment 5]
In experiment 5, the coating fluid that particulate is contained layer changes as described below, in addition, all with test 1 making layer lamination similarly.The thickness except the particulate part of the protective layer that wherein, obtains is 0.6 μ m.
[particulate contains layer coating fluid]
Vestopal binder 134.03 mass parts
(mutual induction chemical industry (strain) system, Plus coat Z687, solid constituent 25%)
Crosslinking agent 16.46 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.11 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, solid constituent 100%)
Surfactant 2 0.27 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Ps particle dispersion liquid 3.59 mass parts
(Japanese Zeon (strain) system, UNF1008, average grain diameter 1.8 μ m, solid constituent 20%)
Distilled water is added into to amount to becomes 1000 mass parts
[experiment 6]
In experiment 6, the coating fluid that particulate is contained layer changes as described below, in addition, all with test 1 making layer lamination similarly.The thickness except the particulate part of the protective layer that wherein, obtains is 0.6 μ m.
[particulate contains layer coating fluid]
Vestopal binder 134.03 mass parts
(mutual induction chemical industry (strain) system, Plus coat Z687, solid constituent 25%)
Crosslinking agent 16.46 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.11 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, solid constituent 100%)
Surfactant 2 0.27 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Acrylic acid particulate 18.4 mass parts
(ancestor grinds chemistry (strain) system, MX-501, average grain diameter 5.4 μ m, CV value 9.0)
Distilled water is added into to amount to becomes 1000 mass parts
[experiment 7]
In experiment 7, the coating fluid of superficial layer is changed as described below, in addition, all with test 1 making layer lamination similarly.The thickness of the protective layer that wherein, obtains is 0.6 μ m.
[superficial layer coating fluid]
Polyurethane resin adhesive 56.56 mass parts
(Mitsui Chemicals (strain) system, OLESTER UD350, solid constituent 38%)
Crosslinking agent 10.77 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.29 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, nonionic, solid constituent 100%)
Surfactant 2 0.36 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Additive (antiseize paste) 5.96 mass parts
(Zhong jing grease (strain) system, Serozol 524, solid constituent 30%)
Antistatic additive 11.82 mass parts
((strain) ADEKA system, ADEKACOL CC-36, cationic, solid constituent 100%)
Distilled water is added into to amount to becomes 1000 mass parts
[experiment 8]
In experiment 8, the coating fluid of superficial layer is changed as described below, in addition, all with test 1 making layer lamination similarly.The thickness except the particulate part of the protective layer that wherein, obtains is 0.6 μ m.
[superficial layer coating fluid]
Polyurethane resin adhesive 56.56 mass parts
(Mitsui Chemicals (strain) system, OLESTER UD350, solid constituent 38%)
Crosslinking agent 10.77 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.29 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, nonionic, solid constituent 100%)
Surfactant 2 0.36 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Additive (antiseize paste) 5.96 mass parts
(Zhong jing grease (strain) system, Serozol 524, solid constituent 30%)
Antistatic additive 7.82 mass parts
(flower king (strain) system, レ オ De one Le TWL120, nonionic, solid constituent 100%)
Distilled water is added into to amount to becomes 1000 mass parts
[experiment 9]
In experiment 9, the coating fluid that particulate is contained layer changes as described below, in addition, all with test 1 making layer lamination similarly.The thickness except the particulate part of the protective layer that wherein, obtains is 0.6 μ m.
[particulate contains layer coating fluid]
Vestopal binder 134.03 mass parts
(mutual induction chemical industry (strain) system, Plus coat Z687, solid constituent 25%)
Crosslinking agent 16.46 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.11 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, solid constituent 100%)
Surfactant 2 0.27 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Distilled water is added into to amount to becomes 1000 mass parts
[experiment 10]
In experiment 10, the coating fluid of superficial layer is changed as described below, in addition, all with test 1 making layer lamination similarly.The thickness except the particulate part of the protective layer that wherein, obtains is 0.6 μ m.
[particulate contains layer coating fluid]
Vestopal binder 134.03 mass parts
(mutual induction chemical industry (strain) system, Plus coat Z687, solid constituent 25%)
Crosslinking agent 16.46 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.11 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, solid constituent 100%)
Surfactant 2 0.27 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Distilled water is added into to amount to becomes 1000 mass parts
[superficial layer coating fluid]
Polyurethane resin adhesive 24.29 mass parts
(Mitsui Chemicals (strain) system, OLESTER UD350, solid constituent 38%)
Acrylic resin adhesive 3.36 mass parts
(Daicel chemical industry (strain) system, EM-48D, solid constituent 27.5%)
Crosslinking agent 4.61 mass parts
(spinning (strain) system day clearly, カ Le ボ ジ ラ イ ト V-02-L2, solid constituent 40%)
Surfactant 1 0.12 mass parts
(Japanese grease (strain) system, ラ ピ ゾ-Le B-90, nonionic, solid constituent 100%)
Surfactant 2 0.15 mass parts
(Sanyo changes into industry (strain) system, NAROACTY CL-95, nonionic, solid constituent 100%)
Additive (antiseize paste) 1.54 mass parts
(Zhong jing grease (strain) system, Serozol 524, solid constituent 30%)
Distilled water is added into to amount to becomes 1000 mass parts
With each experiment mainly create conditions and described each evaluation result gathers and is shown in table 1.
Wherein, the symbol in the table 1 is as described below.
A-1:Bironal MD-1245 ((strain) system, mylar spin in Japan)
A-2:OLESTER UD350 (Mitsui Chemicals (strain) system, polyurethane resin)
A-3:EM-480 (Daicel chemical industry (strain) system, acrylic resin)
B-1: エ Na ジ コ-Le CNS (ラ イ オ Application (strain) system, beet alkalescence)
B-2:ADEKACOL CC-36 ((strain) ADEKA system, cationic)
B-3: レ オ De one Le TWL120 (flower king (strain) system, nonionic)
C-1:MX-501 (ancestor grinds chemistry (strain) system, crosslinked PMMA particulate)
C-2:UNF1008 (Japanese Zeon (strain) system, ps particle)
From above result as can be known, utilize experiment 1～10 stacked transmitance that obtains all high.In addition, surface resistivity to the index of the easy degree of adhering to as foreign matters such as dust is measured, the result is using based on the experiment 1～6 of the antistatic additive of the betaine system of imidazoles skeleton and is testing in 9, outstanding antistatic performance is shown, and in experiment 7,8,10, do not see sufficient static electricity resistance.And then, the minimum load as the index of scratching intensity is measured, the result is in experiment 1～8, from the size of minimum load as can be known, scratching intensity all illustrates higher value, and on the other hand, in experiment 9～10, it is very little that minimum load becomes, and scratching intensity illustrates lower value.
By using following coating fluid, on stacked easy adhesive linkage of the experiment 1～6 that can obtain outstanding evaluation result, light diffusion layer is set, make diffusion sheet as shown in Figure 3.Then, each diffusion sheet as sample, is utilized method described later, measure the ratio and the brightness of light diffusion, estimate optical characteristics.
[light diffusion layer]
Utilize pump (pump), the light diffusion layer coating fluid of the following composition of liquor charging and crosslinking agent liquid, the relative light diffusion layer coating fluid of each flow 100g, become crosslinking agent liquid 9.98g, and utilize static(al) blender (static mixer) (φ 3.4-N60S-523-F simultaneously, Noritake Co., Limited's system) mix the two.Then, make this mixed liquor, after 3 minutes, on stacked easy adhesive linkage side, be coated with, make coating weight become 64.4cc/m
2,, form light diffusion layer by under 120 ℃, making its dry 2 minutes.
[light diffusion layer coating fluid]
Methyl ethyl ketone 1.130g
Acrylic resin 501.6g
(Acrydic A811BE, big Japanese ink chemical industry (strain) system, 50 quality % solution (hydroxyl value 17, acid number 3))
·ジユリマ-MB-20X 421.3g
(organic fine particles of polymethyl methacrylate crosslink type, Japanese pure medicine (strain) system, the spheroidal particle of average grain diameter 18 μ m)
·F780F 0.97g
(big Japanese ink chemical industry (strain) system, 30 quality % solution of methyl ethyl ketone)
[crosslinking agent liquid]
Methyl ethyl ketone 1039g
Isocyanate compound 352g
(Takenate D110N, the military field chemistry of Mitsui (strain) system)
[mensuration of light diffusing]
Utilize the turbidity value (%) under nephelometer (SUGA testing machine corporate system) the mensuration illuminant-C.Wherein, this value is big more shows more that then light diffusing is outstanding.
[evaluation of front face brightness climbing]
The backlight unit of type under the LCD usefulness shown in Figure 4 is used as light source, and on the diffuser plate of this backlight unit, the described diffuser plate of mounting utilizes luminance meter (MB-7 opens up the Pu Kang system), measures front face brightness (K
1).Front face brightness (K when in addition, similarly mensuration does not have stacked
0), with K
1/ K
0Try to achieve as the front face brightness climbing.Wherein, as the lamp (lamp) 35 of Fig. 4, use cold-cathode tube.
Described each result who measures is: at first, be followed successively by 89.4%, 89.3%, 89.5%, 89.1%, 89.0%, 95.8% from the turbidity of testing 1～6 stacked diffusion sheet that obtains, outstanding light diffusing all is shown.In addition, the front face brightness climbing becomes 1.32,1.32,1.32,1.32,1.31,1.41 successively, is the level that high image quality can be provided.Can confirm from above result,, then can obtain the high and outstanding optical sheet of anti-wound property of transparency if form the optical functional layer of diffusion layer and so on surface as the supporter of the opposition side of the face that is formed with the protective layer that includes predetermined component.
[layers of prisms]
By using following resin liquid on the easy adhesive linkage of stacked W of the experiment 1～6 that can obtain outstanding evaluation result, layers of prisms F to be set, make prismatic lens as shown in Figure 5.Then, as sample, utilize method described later to measure front face brightness each prismatic lens, estimate optical characteristics.
[adjustment of resin liquid]
Mix the compound shown in following with the weight ratio of record, be heated to 50 ℃, stirring and dissolving obtains resin liquid.
[resin liquid]
BrBPA 35.0 mass parts
(epoxy acrylate that contains the tetrabromobisphenol A skeleton)
BPE200 35.0 mass parts
(NK ester BPE-200, Xin Zhong village chemistry (strain) system, oxirane addition bisphenol-A methacrylate, (viscosity: 590mPas/25 ℃))
BR-31 30.0 mass parts
(New Frontier BR-31, the first industrial pharmaceuticals industry (strain) system, acrylic acid tribromophenoxy ethyl ester, (be solid at normal temperatures, fusing point is more than 50 ℃))
LR8893X 2.0 mass parts
(Lucirin LR8893X, the optical free radical initator of BASF (strain) system, ethyl-2,4,6-trimethylbenzoyl ethoxyl phenenyl phosphine oxygen)
MEK 43.7 mass parts
[making of prismatic lens]
As shown in Figure 7, use stacked W of the present invention, utilize prismatic lens manufacturing installation 40 to make prismatic lens (with reference to Fig. 5).That utilizes wide 500mm, thick 188 μ m is testing stacked that makes in 1～6.
Prismatic lens manufacturing installation 40 possesses that feeding sheet materials machine 41, apparatus for coating 42, resin solidification device do 45, diaphragm feedway 47, sheet material coiler device 48, drying device 49.Feeding sheet materials machine 41 is delivered to apparatus for coating 42 with stacked W of the present invention.Apparatus for coating 42 is made of the chill coating machine (die coater) of the dispense tip 42C with exclusion type (exclusion type).Utilize pump 42,42A delivers to dispense tip 42C with the radiation curing resin.Drying device 49 is the heat-sealing endless form, for example utilizes the hot blast of setting 100 ℃ for to come drying coating film.
As radiation curing resin 42A, use described " resin liquid ".Utilize pump 42B, radiation curing resin 42A is become the dried thickness 20 μ m of organic solvent to the thickness that the quantity delivered of dispense tip 42C is controlled to the moisture state of resin liquid.
Under stacked W is winding to state on the dandy roll 43, utilize UV irradiation unit 50 to coated face irradiation ultraviolet radiation 45, the relief pattern that forms on coated face is solidified.Utilize stripper roll 46, peel off relief pattern from dandy roll 43 and solidify the stacked W that forms,, utilize sheet material coiler device 48, it is wound up on the core as prismatic lens (with reference to Fig. 5).At this moment, carry diaphragm H, reel with prismatic lens from diaphragm feedway 47.
As dandy roll 43, use length (width of sheet material W) to be the Facing material of the S45C system of 300mm roller as nickel as 700mm, diameter.In the full week of the roughly 500mm width on the surface of roller, utilize the machining of using diamond blade (diamond point), the spacing (pitch) that forms roll axial direction is the ditch of 50 μ m.The cross sectional shape of ditch is the triangle of drift angle 90 degree, and the bottom of ditch is not for there being 90 triangles of spending of flat yet.That is, the ditch width is that 50 μ m, ditch depth are about 25 μ m.This ditch becomes the seamless ring (endless) that does not have seam at the circumferencial direction of roller, so utilize this seamless ring 43, can be formed on sheet material W upper section is leg-of-mutton biconvex lens (lenticular lens) (prismatic lens (with reference to Fig. 5)).After ditch processing, implement nickel plating to the surface of roller.The summary sectional view of dandy roll 43 is shown in Fig. 6.
As niproll 44, use diameter to be formed with the roller that rubber hardness is the layer of 90 silicon rubber as 200mm, on the surface.Utilize dandy roll 43 and the clamping of niproll 44 extruded sheet W to press (effectively clamping is pressed) to be 0.5Pa.
As UV irradiation unit 50, use metal halide lamp (metal halide lamp), with 1000mJ/cm
2Energy carry out ultraviolet ray 45 irradiation.
[evaluation of front face brightness climbing]
The backlight unit of type under the LCD usefulness shown in Figure 4 is used as light source, and on the diffuser plate of this backlight unit, the described prismatic lens of mounting utilizes luminance meter (MB-7 opens up the Pu Kang system), measures front face brightness (K
1).Front face brightness (K when in addition, similarly mensuration does not have stacked
0), with K
1/ K
0Try to achieve as the front face brightness climbing.Wherein, as the lamp (lamp) 35 of Fig. 4, use cold-cathode tube.
Described each result who measures is: the front face brightness climbing becomes 1.45,1.44,1.45,1.44,1.44,1.35 successively, is the level that high image quality can be provided.Can confirm from above result,, then can obtain the high and outstanding optical sheet of anti-wound property of transparency if form the optical functional layer of diffusion layer and so on surface as the supporter of the opposition side of the face that is formed with the protective layer that includes predetermined component.
Claims (6)
1. a lamination sheet for optical uses is characterized in that,
The easy adhesive linkage of the one side that have the supporter that is made of polyester through biaxial tension, is disposed at described supporter and be disposed at the protective layer of the another side of described supporter, described protective layer contain as the adhesive of water-soluble or aqueous dispersion polymers, organic fine particles and have the antistatic additive of the betaine system of imidazoles skeleton.
2. lamination sheet for optical uses according to claim 1 is characterized in that,
Described organic fine particles is by at least a formation the in polystyrene, the polymethyl methacrylate.
3. lamination sheet for optical uses according to claim 1 and 2 is characterized in that,
The average grain diameter of described organic fine particles is more than the 0.05 μ m, below the 20.0 μ m.
4. according to each described lamination sheet for optical uses in the claim 1～3, it is characterized in that,
As the adhesive of water-soluble or aqueous dispersion polymers by at least a formation the in mylar, polyurethane resin, the acrylic resin.
5. according to each described lamination sheet for optical uses in the claim 1～4, it is characterized in that,
Described protective layer is for being contained layer and containing 2 layer laminates that the superficial layer on the layer constitutes at described particulate by particulate; described particulate contains layer and contains adhesive and organic fine particles as water-soluble or aqueous dispersion polymers, and described superficial layer contains as the adhesive of water-soluble or aqueous dispersion polymers and antistatic additive with beet alkalescence of imidazoles skeleton.
6. an image display device is characterized in that,
Has the optical functional component that is provided with optical functional layer on the easy adhesive linkage of each described lamination sheet for optical uses in claim 1～5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008055200A JP2009210911A (en) | 2008-03-05 | 2008-03-05 | Optical laminated sheet and image display device |
| JP2008055200 | 2008-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101524907A true CN101524907A (en) | 2009-09-09 |
Family
ID=41093046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910118579A Pending CN101524907A (en) | 2008-03-05 | 2009-03-04 | Lamination sheet for optical uses and image display device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2009210911A (en) |
| KR (1) | KR20090095461A (en) |
| CN (1) | CN101524907A (en) |
| TW (1) | TW200944831A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650705A (en) * | 2011-02-23 | 2012-08-29 | 富士胶片株式会社 | Optical laminate film and display device |
| CN106526718A (en) * | 2016-12-23 | 2017-03-22 | 合肥乐凯科技产业有限公司 | Aqueous system anti-scratch diffusion film and backlight module used for liquid crystal display |
| CN106707378A (en) * | 2016-12-23 | 2017-05-24 | 合肥乐凯科技产业有限公司 | Anti-scratch diffusion film and backlight module |
| WO2017186006A1 (en) * | 2016-04-26 | 2017-11-02 | 京东方科技集团股份有限公司 | Prismatic lens, preparation method therefor, backlight module, and vr display device |
| CN109461870A (en) * | 2018-08-30 | 2019-03-12 | 上海顶皓新材料科技有限公司 | One kind being used for lithium ion battery ceramic diaphragm, ceramic slurry and preparation method thereof |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5441583B2 (en) | 2009-09-18 | 2014-03-12 | 三菱樹脂株式会社 | Double-sided laminated polyester film |
| JP2012086363A (en) * | 2010-10-15 | 2012-05-10 | Techno Polymer Co Ltd | Laminate |
| JP2013010278A (en) * | 2011-06-30 | 2013-01-17 | Mitsubishi Plastics Inc | Laminated polyester film |
| JP5542253B2 (en) * | 2011-06-28 | 2014-07-09 | 三菱樹脂株式会社 | Laminated polyester film |
| WO2013001938A1 (en) * | 2011-06-28 | 2013-01-03 | 三菱樹脂株式会社 | Coating film |
| US9199420B2 (en) | 2012-01-17 | 2015-12-01 | Mitsui Chemicals, Inc. | Flexible film with surface relief and use thereof in electro-active optical systems |
| JP5608198B2 (en) * | 2012-08-20 | 2014-10-15 | 三菱樹脂株式会社 | Laminated polyester film |
| JP5793552B2 (en) * | 2013-04-05 | 2015-10-14 | 三菱樹脂株式会社 | Laminated polyester film |
| JP5959476B2 (en) * | 2013-05-18 | 2016-08-02 | 三菱樹脂株式会社 | Laminated polyester film |
| JP6200777B2 (en) * | 2013-10-30 | 2017-09-20 | 富士フイルム株式会社 | Light extraction member and organic electroluminescence device |
| JP6326816B2 (en) * | 2013-12-29 | 2018-05-23 | 三菱ケミカル株式会社 | Biaxially stretched laminated polyester film |
| JP5970093B2 (en) * | 2015-01-29 | 2016-08-17 | 三菱樹脂株式会社 | Laminated polyester film |
| CN106291794A (en) * | 2015-06-05 | 2017-01-04 | 象山激智新材料有限公司 | A kind of anti-blue light preventing ultraviolet light-transmissive film or plate and application thereof |
| CN104965246B (en) * | 2015-06-24 | 2017-10-03 | 杭州星华反光材料股份有限公司 | A kind of antistatic reflective fabric and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06121102A (en) * | 1992-10-05 | 1994-04-28 | Ricoh Co Ltd | Multimedia server device |
| JP2007148334A (en) * | 2005-11-02 | 2007-06-14 | Nippon Shokubai Co Ltd | Light diffusing plate for liquid crystal display apparatus and its manufacturing method |
| JP2007249057A (en) * | 2006-03-17 | 2007-09-27 | Fujifilm Corp | Lens sheet and its manufacturing method |
| JP2007264281A (en) * | 2006-03-28 | 2007-10-11 | Dainippon Printing Co Ltd | Hard coat layer provided with antifouling property |
-
2008
- 2008-03-05 JP JP2008055200A patent/JP2009210911A/en not_active Abandoned
-
2009
- 2009-01-20 KR KR1020090004678A patent/KR20090095461A/en not_active Application Discontinuation
- 2009-03-04 TW TW098106920A patent/TW200944831A/en unknown
- 2009-03-04 CN CN200910118579A patent/CN101524907A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650705A (en) * | 2011-02-23 | 2012-08-29 | 富士胶片株式会社 | Optical laminate film and display device |
| CN102650705B (en) * | 2011-02-23 | 2016-01-20 | 富士胶片株式会社 | Optical multilayer film and display device |
| WO2017186006A1 (en) * | 2016-04-26 | 2017-11-02 | 京东方科技集团股份有限公司 | Prismatic lens, preparation method therefor, backlight module, and vr display device |
| CN106526718A (en) * | 2016-12-23 | 2017-03-22 | 合肥乐凯科技产业有限公司 | Aqueous system anti-scratch diffusion film and backlight module used for liquid crystal display |
| CN106707378A (en) * | 2016-12-23 | 2017-05-24 | 合肥乐凯科技产业有限公司 | Anti-scratch diffusion film and backlight module |
| CN106526718B (en) * | 2016-12-23 | 2018-08-28 | 合肥乐凯科技产业有限公司 | A kind of water-based system anti scuffing diffusion barrier and backlight for liquid crystal display module |
| CN106707378B (en) * | 2016-12-23 | 2019-05-07 | 合肥乐凯科技产业有限公司 | A kind of anti scuffing diffusion barrier and backlight module |
| CN109461870A (en) * | 2018-08-30 | 2019-03-12 | 上海顶皓新材料科技有限公司 | One kind being used for lithium ion battery ceramic diaphragm, ceramic slurry and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200944831A (en) | 2009-11-01 |
| KR20090095461A (en) | 2009-09-09 |
| JP2009210911A (en) | 2009-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101524907A (en) | Lamination sheet for optical uses and image display device | |
| EP3133441B1 (en) | Film for transparent screen, method for manufacture thereof, and transparent screen comprising same | |
| CN1922509B (en) | Diffuser for flat panel display | |
| KR101589883B1 (en) | Display device with touch panel | |
| TWI406014B (en) | Composite optical film | |
| EP3309611A1 (en) | Transparent screen and image projection system provided with same | |
| CN101470214A (en) | Glare-proof film, glare-proof polarizing sheet and image display device | |
| CN101408637A (en) | Polarizing sheet combination, and liquid crystal display device and liquid crystal panel using the same | |
| WO2016093181A1 (en) | Transparent sheet, transparent screen comprising same, and image projector including same | |
| CN101320100A (en) | Production method of antireflection film, antireflection film, polarizing plate and image display device | |
| KR20130049202A (en) | Antiglare film, antiglare film manufacturing method, polarizing plate and liquid crystal display device | |
| TW201736135A (en) | Hard coat film and application of same | |
| KR20130122964A (en) | Anti-glare film, method for producing anti-glare film, anti-glare anti-reflection film, polarizing plate, and image display device | |
| JP2017015824A (en) | Sheet-like transparent laminate, transparent screen having the same, and image projection device having the same | |
| CN102834742A (en) | Light-diffusing film for led lamp | |
| CN102449542A (en) | Liquid crystal display device | |
| JP5971121B2 (en) | Manufacturing method of optical film | |
| JPWO2017104623A1 (en) | Deformed display device | |
| CN102736143A (en) | Light diffusion film and producing method thereof, coating liquid used therefore, polarizing film using the same, and liquid crystal display device | |
| US20210132663A1 (en) | Folding-type display and portable terminal device | |
| CN102449543A (en) | Liquid crystal display device | |
| CN102472912A (en) | Liquid crystal display device and light diffusion film | |
| JP5382118B2 (en) | Polarizing plate and liquid crystal display device | |
| CN109073963B (en) | Transparent light diffuser, reflective transparent screen and image projection system | |
| JP2011048050A (en) | Polarizing plate and liquid crystal display device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090909 |