TW201111176A - Luminance improving film having adhesive layer, polarizing plate, and liquid crystal display device comprising the luminance improving film and the polarizing plate - Google Patents

Abstract

Disclosed is a luminance improving film wherein a transparent film is provided on at least one surface of a resin layer that has cholesteric regularity, while having an active energy ray-cured adhesive layer interposed between the transparent film and the surface of the resin layer. The active energy ray-cured adhesive layer is obtained by curing an active energy ray-curable adhesive composition, and the adhesive composition contains, in an uncured state, at least (A) an oligomer type polyfunctional (meth)acrylate having 3 or less functional groups, and (B) a mono(meth)acrylate which contains at least one hydroxy group in each molecule and has a viscosity of 10 mPas or more but less than 500 mPas at a temperature of 20 ± 1.0 DEG C. As a result, the resin layer that has cholesteric regularity becomes less susceptible to deformation and damage in the luminance improving film having the resin layer that has cholesteric regularity. Consequently, the luminance improving film enables a liquid crystal display device to have excellent thinness, luminance and display characteristics when used therein.

Description

201111176 VI. Description of the Invention: [Technical Field] The present invention relates to a luminance enhancement film, a method of manufacturing the same, a board, and a liquid crystal display device. [Prior Art] It is known that display devices such as liquid crystal display devices are provided with various optical members in order to enhance their performance. For example, it is known that in the liquid crystal display, a method for enhancing the luminance and improving the luminous efficiency for effectively utilizing light from the backlight panel is to provide a luminance enhancement thin film. As the luminance-enhancing film, for example, a resin layer having a color-changing property (hereinafter, referred to as a "color-changing resin layer" as appropriate) and a 1/4 wavelength plate are laminated (for example, through an adhesive layer) (Patent Document 1). In the formation of the color-changing resin layer, it is proposed to peel off the color-changing resin layer formed on the coated substrate having the alignment film and transfer it to the other light-transmitting substrate. Such a brightness enhancement film can separate the alignment substrate and the light-transmissive substrate, and the number of films can be reduced. It can be directly laminated on the polarizing plate, which is advantageous for thinning or cost. [PRIOR ART DOCUMENT] [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei 7-36025 (Patent Document 2) Japanese Patent Application Laid-Open No. Hei No. Hei. However, the brightness-promoting film produced by the transfer is exposed to the other optical element in a state in which the ruthenium sheet or the like is directly laminated, so that the surface of the color-changing resin layer is not easily damaged, and The color-changing resin layer is easily deformed, and in a state in which it is used as a member of a liquid crystal display device, there is a problem that an optical defect is likely to occur. Further, when the color-changing resin layer formed on the coated substrate having the alignment film is peeled off and transferred onto another light-transmitting substrate, the resin layer is likely to be generated due to the stress applied to the color-changing resin layer. The problem of rupture occurs. Further, by using an adhesive at the time of bonding the substrate supporting the color-changing resin layer and the color-changing resin layer, there is a problem that the self-supporting property is insufficient and the deformation is seen by heat or environmental test when the backlight is turned on. occur. The present invention is a liquid crystal display device which is excellent in thinness, brightness or display characteristics when used as a liquid crystal display device in a brightness-enhancing film having a color-changing resin layer, which is less likely to cause deformation and scratches of the resin layer which is discolored. The development of polarizing members is a problem. [Means for Solving the Problem] In order to solve the above problems, the inventors of the present invention conducted a review and found that a specific active energy ray-curable adhesive layer can be transmitted through at least one side of the color-changing resin layer. The present invention has been completed by providing a transparent film to solve the aforementioned problems. In other words, if the present invention is provided, the following [丄] to [9] are provided. 201111176 [1]· A brightness enhancement film is provided with a brightness enhancement thin film of a translucent film through an active energy ray-curable adhesive layer on at least the side of the resin layer having a regularity of discoloration, characterized in that activation The ray-curable adhesive layer-curable active energy ray-curable adhesive composition, the adhesive composition is in an unhardened state, and at least (A) an oligomer having a functional group number of 3 or less, 里g旎(meth)acrylic acid The ester and (B) a mono(meth)acrylate having at least one hydroxyl group in a molecule having a viscosity of 10 μm·s or more at a temperature of 〇mPa·s or less than 5 〇〇mPa·s. [2] The luminance-promoting film according to [1], wherein the content of (B) is in the range of 35 to 85 in 100 parts by weight of the (meth) acrylate contained in the uncured adhesive composition. The range of parts by weight. [3]: A brightness enhancement film as described in [1] or [2], (a) consisting of ethyl urethane (meth) acrylate, epoxy (meth) acrylate, and poly (methyl) An oligomer type (mercapto) acrylate selected from the group consisting of acrylates. [4] The brightness enhancement film according to [1] to [3], characterized in that the adhesive composition in an unrefined state further comprises (.C) a glass transition temperature of ~1 〇C or more, 8 〇. It is an inert polymer below. [5] The brightness enhancement film according to any one of [1] to [4], wherein the transparent film is /4 plates. [6] : A polarizing plate characterized in that a transparent protective film is provided on both sides of the polarizer, and the brightness enhancement film according to any one of [1] to [5] is bonded to one side of the polarizing film. . [7] : A polarizing plate characterized in that: on one side of the polarizer, a transparent protective film is provided in 201111176, and on the other side, a brightness enhancement film as described in any one of (1) to (5) is bonded. [8]: A liquid crystal display device comprising a luminance enhancement film as described in any one of L L J L ΰ. [9] : A liquid crystal display device, such as the polarizing plate contained in [6] and L 〖, is attached to the side of the illumination device of the liquid crystal cell. [Effect of the Invention] The brightness-promoting film-based color-changing resin layer of the present invention has less scratches and deformations, and the thickness of the polarizing plate is improved, and the thickness and brightness are improved. , can be a lightweight and low-cost device. [Embodiment] 1. Brightness-enhancing film of the present invention The brightness-enhancing film of the present invention comprises a color-changing resin layer. Further, the brightness enhancement film of the present month includes a transparent film on the surface of at least one side of the color-changing resin layer, through the tongue-forming i-ray-curable adhesive layer. Further, the transparent film may be provided on both sides of the color-changing resin layer. 1 - 1 · Transparent film As the transparent film, a quarter-wave plate (also referred to as "Λ / 4 plate"), a protective sheet, or the like can be exemplified. (1/4 wavelength plate) As an 1/4, 'from e', · and long-plate type, it is possible to use, for example, an extended film-like polymer to form an extended amine; and as a polymer system, it is preferable to use a transparent tree. 6 201111176 Grease, the above-mentioned transparent resin can be used, for example, with a 1 mm thick plate and a total light transmittance of 80% or more. It can be listed as a polyether methacrylate, polystyrene, polycarbonate, polyether hard. 'Amorphous polyethylene, triethyl fluorenyl cellulose, and a tree having an alicyclic structure. As a preferred example, a 1/4 composition of a film containing a styrene resin screen is used. A wavelength plate and a quarter-wave plate which is formed by extending a resin film having an alicyclic structure and re-formed. More preferably, it is a prior art element described in the following. 1 / 4 wavelength plate system It is possible to make the ruler have a positive retardation in the front direction (hereinafter referred to as "Re I." for me, to learn, to prove, "to become a 1/4 wavelength of light through light" here,

The wavelength range of the transmitted light can be a desired range of the A-horse composite component, specifically, for example, _nm. Further, the hysteresis in the front direction Re is a 1/4 wavelength of the transmitted light, and the Re value is a value of the center value of the wavelength range of the transmitted light, and starts from ±10 nm of the center value to ±65 nm, preferably ±30 nm. More ideally, it is within the range of ±i〇nm. By having such a hysteresis value, it is possible to find that the polarization conversion function, that is, the circular polarization conversion function becomes a linear polarization. Further, it is preferable that the 1/4 wavelength plate is delayed in the thickness direction (hereinafter referred to as "Rth" for short). The value of the retardation r 厚度 in the thickness direction may be a central value in the wavelength range of the transmitted light, and is preferably - (10) coffee to 1000 nm, more preferably - 5 〇 nm 〜 3 〇〇 nm. By adopting an optical anisotropic element having such a Re value and Rth, the luminance can be improved, the luminance unevenness can be reduced, and the color unevenness of the emitted light can be reduced. Here, the hysteresis Re in the front direction is by the public martial arts T. D fw . Re == ( η χ ny ) xd (in the formula, η χ is expressed in the direction perpendicular to the thickness direction 201111176 (in-plane direction, two _ The refractive index imparted to the direction of the maximum refractive index, nv Sun forgets the refractive index perpendicular to the direction of the direction of the yueshi y-series (in-plane direction) and intersects in the direction of nx, d grandchild - πηχ The square hysteresis batch system ° ^ indicates the value 'thickness direction' (in the formula η :; - (一 " 2-... direction) and the early county in the direction perpendicular to the thickness direction (inside: large refractive index) The refractive index of the direction is 6+ ny in the thickness direction, not in the vertical rate, and in the nz direction (the in-plane illusion and the value of the refraction in the direction of nx. ', the refractive index in the direction of the twist, d is the expression Film thickness.) The retardation Re in the front direction and the retardation batch in the thickness direction, and the phase difference measuring device from the sale, in the longitudinal direction and the width of the square::/° 〇 间隔 (in the long side direction or The length in the horizontal direction is less than 200ΙΠΠ1, and the lower one is specified at three equal intervals for the direction.), right The 1 ^ wave plate ' covers the entire surface and is measured in a lattice shape to have an average value. The material of the optical anisotropic element of the 2 - 1 / 4 wavelength plate is not special: the limit 'but' is preferably A layer having a composition composed of a stupid ethylene resin: a so-called stupid vinyl resin having a styrene structure as a polymer resin partially or wholly as one of two repeating units, may be suitably used, or may be suitably used. a copolymer of styrene and maleic anhydride. The molecular weight of the styrene resin used in photonic anisotropy is 1 = 1 for the purpose of use, and θ, 仁疋' is used by using the ring The weight average molecular weight (Mw) of the polyisoprene dilute measured by gel permeation chromatography as a solvent is usually 1 〇, _ or more, 3 〇〇, _ or less, and 201111176 is more preferably 20,000. 5,000 or more, 250,000 or more, and 200,000 or less. The optically pure element described above is preferably a laminated structure having a layer composed of the above-described styrene-based resin and a layer containing another thermoplastic resin. the The laminated structure has an optical property due to a styrene-based resin and an electrical strength due to other thermoplastic resins. As another thermoplastic resin, an alicyclic structure can be appropriately used. Resin or mercapto propylene resin. As a series of resins having an alicyclic structure, for example, an alicyclic olefin polymer, the alicyclic olefin polymer has a cycloalkane structure or a cycloalkenyl structure in a main chain and/or a side chain. The non-crystalline olefin polymer. The methacryl resin is a polymer containing methacrylate as a main component, and examples thereof include a homopolymer of methacrylate or a copolymer of methacrylate and another monomer. As the thioglycolic acid oxime, methacrylic acid vinegar is usually used. In the state of being a copolymer, an acrylate or an aromatic vinyl compound, a vinyl cyanide compound or the like is used as another single system copolymerized with mercapto acrylate. The specific form of the 1/4 wavelength plate is exemplified by a film (layer b) composed of a thermoplastic resin composed of a film (layer a) composed of a polystyrene resin. A plurality of layers of film are stretched to form an extended plurality of layers of film. The following description will be made on the specific form. As the polystyrene resin constituting the a layer, the above-mentioned "stupid vinyl resin" can be used. 201111176 The product of the aforesaid material of the a layer of material is the ant, the vinyl resin and the system (4):::: f-type Γ and formed into a plurality of layers of thin two: _ blow molding, "wedge method, shape method , the old swelling plant such as dry lamination, the method of extrusion, the method of forming the feathers, the β-forming method, and the conventional method of coating. ▲ The fabric is formed in the film - The so-called manufacturing efficiency or words' is best achieved by co-extrusion; the point: the kind of resin in the point =: stupid women's resin and the other thermoplastics mentioned above, moderately selected The plurality of layers are composed of the above-mentioned eight layers. The layers of the layer can be described as a layer of b layers, but the layers of the layers are directly layered. However, it is preferable to form a layer of 4 layers (that is, to become b). The layer/a layer/b layer and the reed=layered body. Further, in the plurality of layers of the film, the a layer is not particularly limited in thickness of the layer b which is hoarded on the two sides, but the final layer can be separately It is 1G (four) or more, 30 (^ or less and ...^ or more, and 4 υ 〇V m or less. The above-mentioned extended plural film system extends the aforementioned complex A plurality of layers of film are combined. The extension is preferably capable of being stapled by an axial extension or oblique extension. More preferably, it can be performed by one or more axial extension or oblique extension of the tenter. The thickness of the anisotropic element is preferably 5 〇 (four) or more, _ - from below, more preferably 50 // m or more '600 # m or less. The 1/4 wavelength plate itself may also have an optical compensation layer. Gong 10 201111176 Yes, however, in addition to the 1/4 wavelength plate, it is also possible to additionally have an optical compensation layer. As such an optical compensation layer, in addition to the optical anisotropic elements as described above, it can also be used: A vertical liquid crystal alignment film which is hardened by vertical alignment of liquid crystal molecules on a substrate (Japanese Patent No. 3992969), and a nematic hybrid liquid crystal alignment which is hardened in a state of nematic hybrid alignment on liquid crystal molecules on a substrate Film (U.S. Patent No. 6,294,229). (Protective film) A transparent resin film can be used as the protective film for protecting the color-changing resin layer. It is preferable to use the same material as the 丨/4 wavelength plate. It is particularly preferable to use a resin film of an unstretched alicyclic structure having good heat resistance and transparency. It is possible to protect the film in the opposite direction. On the surface of the color changing resin layer

The shape of the transfer is specified by the dip coating method. It is possible to prevent scratches by setting the unevenness and improving the slidability of the film which is the brightness of the backlight. A method of heating a surface of a transparent resin film; a method of squeezing a mold having a predetermined shape by a solvent such as a solvent dissolved in the resin, and transferring the surface of the thin enamel; and dissolving the light-transmitting particles in the resin Further, the solution is applied by a transparent resin thin, a gravure coating method, a die coating method, a method, a red transfer coating method, and dried, hardened, and irregularly formed in 201111176. Among these, it is preferable to apply a solution having a good suitability and a light-transmitting particle dispersed in a resin solution to a surface of a transparent resin film in a long length. The rough surface of the surface of the protective enamel that recognizes the unevenness on the surface can be advanced according to JIS Β0601 - 1994: sweet 丨々 For 10 points in the plane, you can measure the length of 5 # m, measure + it ·+/Ιί h ,, , ^ 千 point thousand mean roughness, the length of the flat curve element of the contour curve is measured at 10 points The average value of the ten points of the object to be measured, Rz, and the average length Sm of the contour elements are calculated by the average value. The ratio of the ten-point average roughness Rz to the average length S in the surface of the concave and convex surface is set to be 4 r>, which is the range of 2x1 〇~7x1 〇-3, more preferably 3xl〇-4~ 5xl〇-3, even 啬 曰 琅 琅 琅 x 5xl〇-4~4.5χ1 (Γ3〇1~~2. Color changing resin layer (transfer film transfer) (color changing resin layer) system m so-called color changing resin layer (that is, a resin layer having a cured coating film formed on a substrate for forming a resin layer. A resin layer having a discoloration regularity is a color-changing liquid crystal composition). The so-called discoloration regularity is in a flat direction on the next plane. a molecular axis, and a structure in which the next plane angle advances (twisted) in a plane arranged in a certain direction. Thus, the twisted portion becomes an optically active structure. The molecular axis is arranged in a certain direction to form a slight angle. The state in which the partial deviation is more deviated, and the structure of the molecular-molecule wheel is also optically deviated from the sub-axis direction. The brightness-enhancing film of the present invention preferably includes the entire 201111176 wavelength region covering visible light. The color-changing resin layer of the circular polarization separation function is preferably, for example, any of blue (wavelength 410 to 47 〇 nm), green (wavelength 52 〇 to 580 nm), and red (wavelength 6 〇〇 to β 6 〇 η π). The color-changing resin layer has a color-changing resin layer having a circular polarization-separating function. The color-changing resin layer can be obtained by, for example, a curing treatment described later, and polymerizing a color-changing liquid crystal composition (X) containing a polymerizable liquid crystal compound. A non-liquid crystalline resin layer which is still cured by molecular alignment of a liquid crystal compound. Further, the material which is expediently referred to as a liquid crystal composition is not only a mixture of two or more substances but also a single substance. The color-changing liquid crystal composition (X) contains a compound represented by the following formula (j) and a rod-like liquid crystal compound as a polymerizable liquid crystal compound. R1X- Alx- Z- A2X- R2x (1) In the general formula (1) 'RIX and Rn are each independently a linear or branched chain alkyl group having 1 to 20 carbon atoms, and a linear number of carbon atoms i 2 to 2 Branch chain Selected from the group consisting of an alkylene oxide group, a hydrogen atom, a dentate atom, a hydroxyl group, a carboxyl group, a (fluorenyl)propenyl group, an epoxy group, a decyl group, an isocyanate group, an amine group, and a cyano group. Here, the meaning of (meth) propylene-based propylene and decyl propylene is not limited, or the sulfide atom may be substituted. The above dentate atom, carpet group, carboxyl group, (mercapto)propenyl group, epoxy group, mercapto group, isocyanate group, amine group and cyano group may be bonded to the number of carbon atoms 丨~2 Alkyl, sub 13 201111176 alkyl oxide group. Suitable as R1X and R2X (fluorenyl) propylene group, epoxy group, and group. The halogen atom, the hydroxyl group, the carboxyl group, the sulfhydryl group, the isocyanate group, the amine group, and the cyanide are represented by the compound represented by the formula (1) by a reactive group, and a more stable film is formed into a carboxyl group. (Meth)propenyl and amine groups. R and/or R2 x are fixed to the liquid crystal composition at the time of hardening as described above. Here, the reactive group may be an epoxy group, a decyl group, an isocyanate group, a "q W;; 衣不田1, 4 — ί phenyl, 1,4-cyclohexenyl, 1,4-volume Pa# ^ ', a hexyl group, a 4, 4' phenyl group, a 4,4'-dicyclohexenyl group, and a group of 6 一 丞 are selected to form a d group. The aforementioned 1,4-stupylene, i 4 — « , ,, hexyl, 1,4-cyclohexyl; fc, 4, 4 -biphenyl, 4, 4, ~ 2 $ p @ #一衣己己烯和2,6—Sub-specialty system may not be substituted, or it is also a group, a cyano group, an amine group, a carbon atom number i~(10) atom, a silk 1 7 number 1~I 0 The alkyl group is substituted for one or more. In the state of each Λ 2 Χ alkyl group, these lines may be: two:::: TM is particularly preferred as = unequal U 胄 撑 base and 2, 6 - arylene group. This is a fragrant net ij., and is selected - the square 杳 月 格 比 比 比 后面 ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω ω Yuan 'additional land to improve the uniformity of alignment. , 5 sex change, more 14 201111176 In the general formula (1), z is a single bond, ~ 〇 -, a Co-, -CS- no s -, -0C0-, -CH2 -, -

-N=CH-, - NHC0-, _〇c〇〇-, 2, -CH=N

Selected by the group of members. Particularly preferably, the Z system is a single bond CH-. ~ and ~~ CH ~cihcoo—and —CH2〇c〇

The compound of the formula (1) is preferably at least - and preferably has a hand micro. Further, 曰/, has liquid crystality' and is preferably a mixture containing a plurality of optical anisotropic bodies, and the product (1) is the most suitable compound. For example, a mixture of a plurality of kinds of mirror image isomers (1) may be contained. The compound of the formula (1) has a small-- or a stereoisomeric point of 5 (TC~150〇C). The germline is preferably in a state in which the compound of the formula (1) has liquid crystallinity. Good = Γ Δη becomes high. It is possible to prevent the effect of hindering the liquid crystal compound by selecting a material of high quality. The compound of the formula (1) is up to > an An system is preferably 疋U.20 or more, more The ideal is 〇22 疋 'When Δη becomes high, the necessary color-changing resin layer...the tendency of the member to become smaller occurs, because &;; when Λη is higher than 0.4, the film thickness is less than 1 The possibility occurs. The deviation from the film thickness below one time sensitively affects the optical characteristics, and there is a tendency that manufacturing becomes difficult because of the enthalpy. Therefore, in this state, the upper limit of Δη is preferably. A particularly preferable specific example of the compound of the formula (1) is, for example, the following compounds (Α1) to (Α9). 15 201111176

201111176 In the aforementioned compound (A3), "*" indicates a chelation center. The color-changing liquid crystal composition (X) is preferably a rod-like liquid crystalline compound containing at least two or more reactive groups per molecule. The above-mentioned rod-like liquid crystal compound is exemplified by the compound represented by the formula (2). In the formula (2)' R and the R-reactive group, each independently represents a (fluorenyl)propenyl group, a (thio) epoxy group, an oxetanyl group, a propyl sulfide group, a propylene group Pyridyl, pyrrolyl, vinyl, allyl, decyl fumarate, cinnamyl, oxazolyl 'indenyl, iso(thio)cyanate, amine, hydroxy, carboxy and alkane The group selected by the group consisting of oxyalkylene groups. In the formula (2), D3X and D4X represent a divalent saturated hydrocarbon group such as a single bond, a carbon atom number [~20 linear or branched chain fluorenylene group and a mercapto group, and carbon A group selected from the group consisting of a linear or branched chain alkylene oxide group having an atomic number of 丨2.

In the general formula (2), C3X to C6X are represented by a single bond, -〇_, _s_, S-S-, -C0-, -cs-, -0C0-, -CH2-, -0CH2 CH-NN= CH-, -NHCO-'-0C00-, -CH2COO-, and a dOCO--group selected. In the formula (2), the lanthanoid group represents an internal group, and specifically, may have a non-substituent or a substituent, and is represented by -〇_, a s-, -s_s-,

—C0 —, -N= CH

CS 0C0 CH2- OCHi

CH= N

NHCO

0C00--, -CfhCOO-, and -CH2〇CO 17 201111176—bonding and forming of a bond such as a quinone imine, an azo azo group, a stupid group, a biphenyl group, a terphenyl group, a naphthalene Class, anthraquinone, benzoic acid vinegar, cyclohexanecarboxylic acid phenol vinegar, cyanyl cyclohexane, cyano substituted phenyl pyrimidine, alkoxy substituted phenyl pyrimidine, phenyl dioxane A group of 2 to 4 skeletons selected from the group consisting of diphenylacetylenes and alkenylcyclohexyl benzoquinones. Here, it is preferable that the rod-like liquid crystal compound is an asymmetrical structure called p 4 X r»4X « - C - R having a structure centered on the internal element Μ. By using an asymmetric structure

The asymmetric structure is expressed in the general formula (2), R3X-C3X-D3X-C5X_ and -C6X~D as the rod-like liquid crystalline compound. The above rod-like liquid crystal compound may have up to 2 or more reactive groups in the ruthenium molecule. Specific examples of the above reactive group include an epoxy group, a thioepoxy group, an oxetan group, and a propylene sulfide group.丫propyl=yl, fluorenyl, fumaric acid, cinnamyl, isocyanate, iso-di: oxime, amine, hydroxy, carboxyl, alkoxymethyl, alkyl Base, vinyl, allyl, methacryl and propenyl. It is preferable that the liquid crystal composition (X) described above (the compound of the compound of the above formula (1) is externally added) / (the total weight of the rod-like liquid crystal compound) is preferably G.G5 to 1, more preferably It is U~U5, even to the mean-sex 〇_15~〇·45. When the aforementioned weight ratio is less than 0.05, there is a state in which the alignment is insufficient. Further, when it is higher than 1, the properties of the composition are lowered or the stability of the liquid crystal property is lowered or the state in which the liquid crystal Mn is not obtained and the required optical properties (e.g., the circular polarization index 18 201111176 is out of the characteristics) is lowered. In addition, the total weight is the weight in the state in which the seed is used, and the total weight is used in the state in which two or more types are used. The color changing liquid crystal composition may optionally contain an optically active agent. As an example of the optically active agent of the I form, a compound having a divalent bis-sorbitol skeleton having an optically active group and represented by the following (C1) and (C2) can be used. Further, as an optically active agent sold in the market, for example, LC756 of PALI0C0L0R of BASF Corporation can be obtained.

The octagonal crystal structure may further contain any other two agents as needed. Examples of the other components may include, for example, a solvent, a photopolymer, a surfactant, a crosslinking agent, and an aggregation for pot life improvement. Forbidden 19 201111176 7〇 Preparation, oxidation preventive agent for durability improvement, UV absorber _ 定化剂, etc. These optional components can be included without departing from the required optical properties. The method for producing the color-changing liquid crystal composition is not particularly limited, and it can be produced by mixing the above-described respective components. As a method of producing the color-changing resin layer, for example, the color-changing liquid crystal composition described above can be applied to the substrate layer directly or through the alignment film to obtain a coating film, and then light irradiation and/or light irradiation can be performed and/or The coating film is cured by heating to obtain a color changing resin layer. More specifically, the color-changing resin layer can be produced by the following methods (M1) and (M2). (7)) As the substrate layer described above, a translucent film such as a quarter-wave plate or the like may be used, and a color-changing resin layer may be directly provided thereon. For example, a layered structure of a quarter-wave plate and a color-changing resin layer can be obtained by forming a color-changing resin layer on a top surface of a 1⁄4 wavelength plate as a base material layer. (M2) Any substrate layer may be used, a color-changing resin layer is formed thereon, a color-changing resin layer is transferred to the transparent film through the adhesive composition, and the base material layer is peeled off, and a color-changing resin layer is provided on the transparent film. . In this manner, for example, through the adhesive layer, a laminated structure of the wavelength plate and the color-changing resin layer without the substrate can be obtained. The above-mentioned base (four) is preferably a (iv) transparent resin substrate. The transparent resin substrate just described can be used in the same manner as the one used in the 1/4 wavelength plate. Even in the case where it is preferably an alicyclic olefin polymer or a chain olefin polymer, from the viewpoints of transparency, low hygroscopicity, etc., it is particularly light. Know the % olefin polymer. 20 201111176 An alignment film can be provided on the above-mentioned substrate layer in accordance with the need. The color-changing liquid crystal composition coated thereon can be aligned in a desired direction by providing an alignment film. The alignment film system may be subjected to corona discharge treatment or the like by blending on the surface of the substrate layer, and then using reverse gravure coating, direct gravure coating, die coating, bar coating, and the like. In the method, the material of the alignment film is dissolved in a solution such as water or a solvent, and dried, and then the coating film is dried and subjected to a rubbing polishing treatment to form an alignment film. The material of the alignment film is preferably a denatured polyimine from the viewpoint of durability and the like. On the other hand, from the viewpoint of the ease of transfer of the above-mentioned method (M2), polyvinyl alcohol is particularly preferable. As the above-mentioned denatured polyamidene, it may be mentioned that it is added to an aromatic polyamine or an aliphatic polyimine, and is denatured, preferably in an aliphatic polyamine. Before the coating film obtained by the above-described coating is hardened, the alignment treatment may be carried out as needed. The alignment treatment is performed by, for example, 纟5Q to i5"c, and the coating film is heated for 5 minutes to 1 minute. It is possible to obtain a process in which the discoloration liquid crystal phase in the coating film can be favorably aligned to the treatment. The curing process is performed by, for example, light irradiation, heating, or a combination thereof. get on. The heating condition is, for example, temperature 4. ~ Saki, preferably 50~ Xia, more ideally 5. ~峨, time clock ~3 minutes, preferably 5~12. Seconds. In addition, the so-called 'H light system is not only visible light' but also contains ultraviolet rays and its electromagnetic wave. The light of the light irradiation system is carried out for 1 second to 3 minutes. The wavelength of the emission is 2°°~, and the weight of the ground is two: for the treatment of wide-band, for example, the faint ultraviolet rays of the 仃〇·01~5〇mJ/cm2 can be mixed in multiple times, and the gentry is c: The external light is irradiated and heated to form a circularly polarized light separating element having a wide reflection band. It can be said that the weak ultraviolet ray is shining and the "reverse stalk is caused by the expansion of the reflection band caused by private and shooting 4, and the so-called 50~l〇,000mJ/ 2 > H flat culvert square, outer line, completely The polymerizable liquid crystal compound, the _A i nt a color tree moon layer, the expansion of the reflection band and the irradiation of the strong rabbit outside line can be carried out, a Γ A test can also be controlled in the atmosphere of oxygen (For example, jI, Yamazawa (for example, under nitrogen emulsion), part or all of the process is carried out. The dry film thickness of the color-changing resin layer may preferably be 10" or less, more preferably 2 #m or more, 7 // m is τ s ... (four) below, and even more ideally 3 (four) is in the oblique direction... It can be made 1 by the film thickness. In the following, the hue change when viewed from the oblique direction is reduced. On the other hand, it is possible to obtain a sufficient value of 2 5m or more, and a sufficient ratio of . The thickness of each layer in the state in which the color-changing resin layer is two or more layers is the thickness of the color-changing resin layer in the state of the j-layer. The transfer system of the method (M2) can be formed by The coloring resin layer on the base material or the alignment film is formed on the resin layer and transferred onto the transfer target layer. This transfer-transfer target layer and the color-changing resin layer can be attached and then attached. The transfer target layer may be a transparent film, specifically, for example, a 1/4 wavelength plate. The test layer may be previously disposed on the opposite sides of the transfer target layer 22 201111176 and the color-changing resin layer before transfer. Either side or both sides of the surface. In the state in which the color-changing resin layer is formed on the alignment film, only the color-changing tree layer may be transferred, but the color-changing resin layer and the alignment film may be transferred together. Easiness and misalignment of the color changing resin layer From the viewpoint of prevention, it is preferable to transfer the color-changing resin layer and the alignment film together. 1-3. The adhesive layer is used in the adhesive layer of the present invention (activated energy ray-curable adhesive layer). An adhesive layer composed of a type of adhesive composition (also referred to as an adhesive layer composition). The above-mentioned adhesive composition is in an unhardened state, and comprises an oligomer-type polyfunctional group having (A) a functional group number of 3 or less (A) And (B) a mono(meth)acrylate having at least one hydroxyl group having a temperature of 2 Pa± and a viscosity of 1 OmPa·s or more and 500 mPa·s or less. The meaning of acrylate acrylate and / or mercapto acrylate.

The active energy ray-curable adhesive composition refers to an adhesive composition which is hardened when irradiated with an active energy ray such as ultraviolet rays, X-rays, and electron rays. An inexpensive device can be used, and therefore, it is preferable to use an adhesive composition which is hardened by the outer wire. The light source used for illuminating the ultraviolet ray is not particularly limited, and examples thereof include a low pressure mercury lamp, a medium pressure mercury lamp, a high pressure mercury lamp, an ultrahigh pressure mercury lamp, a chemical lamp black lamp, a microwave excitation mercury lamp, and a metal hydride lamp. The irradiation intensity is not particularly limited. However, the irradiation intensity in the wavelength region effective for activation of the polymerization initiator is preferably 50 to 5000 mW/cm2. More preferably, it is 1 〇〇 ~ 3 〇〇〇 mW / cm 2 , and even more preferably 300 〜 2000 mW / cm 2 . The intensity of light irradiation is less than 23 201111176 The reaction time is too long 'while' hardening. When it exceeds 5000 niW/cra2, there is a fear that the adhesive composition may be yellowed due to heat generation, polymerization reaction, or the like, or the adhesive layer of the adhesive layer may become large and the adhesive force may be lowered. The light irradiation intensity is appropriately selected in accordance with the curing condition, and is not particularly limited. However, it is preferable that the cumulative light amount which is the product of the irradiation intensity and the irradiation time is set to Μ5 to 5, and _ to -2. More ideal is 10. ~J/Clfl2, even better is 5. . ~ 2000 mJ/cm2 〇 Each component is described below. (A) an oligomer-type polyfunctional (meth)acrylic acid having a functional group number of 3 or less and an oligomeric type polyfunctional (:) acrylic acid having a functional group number of 3 or less Preferably, the number of functional groups is 2 & Examples of the oligomer-type polyfunctional (meth)acrylic acid vinegar described above include, for example, poly(methyl)acrylic acid vinegar, epoxy (mercapto)acrylic acid, and amino citrate (methyl). A propylene-based oligomer having various functional groups of 3 or less which exhibits radical polymerizability such as acrylate, polyether (meth) acrylate or fluorenone (fluorenyl) acrylate, or a mixture thereof. Further, the term "functional" as used herein refers to a group having an unsaturated bond. Examples of the functional group include, for example, the following (r_i) to (r _ 8 )', and it is preferable to contain (r- υ to (1__5) (meth) acryl fluorenyl group, etc. The functional group may be used alone or in combination of two or more kinds in any ratio. Further, Et means that ethyl ' η - Pr means propyl. 8 24 201111176

(4) (r-6) The molecular weight of the polymer-polymerizable polyfunctional (methyl (r-7) (r-8) acrylate is less than or equal to the weight average molecular weight in terms of pectin. The poly(Mw) is 500 or more, and the poly(indolene) (meth)acrylic acid can be obtained by the end of (4) obtained by the polyvalent acid and the polyhydric alcohol, and reacted with the (meth)acrylic material. As a multi-pot acid series, it can be used as a polybasic acid, adipic acid, maleic acid, itaconic acid, succinic acid, p-dicarboxylic acid, etc. As a polyol series, ethylene glycol, U4_butane II The alcohol, h 6 monohexane monohydric alcohol, diethylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, etc., for example, EBECRYL 85, 852, 853, 884, 885 (manufactured by DAICEL • CYTEC), 〇LESTER (Mitsui Chemical Co., Ltd.), AR〇NIX Μ — 6100, 6200, 6250, 6500 (manufactured by Toagosei Co., Ltd.), etc. Epoxy (fluorenyl) acrylate is used in epoxy resin to open (meth)acrylic acid. The reactants of the reaction. 25 201111176 Phenol type A:: Oxygen knows that "the lanthanide is composed of bisphenol A and epoxide propane. Double. & age and epoxy propylene & to form a variety of roads, fat Wanya * 3 ^, Yue King King · · one or two coats 1. As an aliphatic epoxy resin can be used Ethylene glycol-private, aerobic, propylene, dipropylene glycol diepoxypropyl ether, neodecanediol diepoxypropyl hydrazine, 1 4__ _ s, butane diol 70 diepoxypropyl Ether, 1, θ-hexane binary production • oxypropyl ether, dimethylolpropane diepoxypropyl ether, polyethylene glycol-leopropyl propyl, etc. '1 and ' can also use dibutyl Epoxy resin, unsaturated fatty acid epoxy resin such as olefinic epoxy resin. Ethylene cyclohexene monooxide, 1,2-epoxy 4 vinyl Cyclohexane, I 2 :8,9-diepoxylimene, 3,4-epoxycyclohexenylmethyl- 3', 4, monoepoxycyclohexenecarboxylate, etc. EBECRYL 600, 860, 3105, 3420, 3700, 370, 3702' 3703, 3708, 6040 (made by DAICEL CYTEC), Neopor 81 (H' 8250, 8260, 8270, 8355, 835, 8335, 8414, 8190, 8195) , 8316, 83 17, 8318, 8319, 8371 (made by U-PiCA, Japan), Denacol-Aery late DA212, 250, 314, 721, 722, DM201 (made by Nagase ChemteX), BANBEAM (made by Harima Chemical Co., Ltd.), Miramer PE210, PE230 , EA2280 (made by Toyo Chemical Co., Ltd.), etc. Ethyl decanoic acid (meth) acrylate is a reactant having a hydroxy (indenyl) propylene monomer, a polyfunctional isocyanate, and a polyhydric alcohol to react with a urethane backbone at the center. Examples of the (meth) propylene single system having a hydroxyl group include 2-hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, and hydroxybutyl (decyl) acrylate. 26 201111176 As a polyfunctional isocyanate series, phenylene diisocyanate, hexamethylene diisocyanate, tetramethylene diisocyanate, trihydroxy hydrazine propane oxime diisocyanate, diphenyl decane triisocyanate, etc. Even in the case, it is suitable to use hexamethylene diisocyanate which is excellent in weather resistance. As the polyol, those which can be used for polyester (meth)acrylate can be used. For example, EBECRYL 204, 210, 220, 230, 270, 4858, 8200, 82 (Π, 8402, 8804, 8807, 9260, 9270, KRM8098, 7735, 8296 (manufactured by DAICEL CYTEC), UX2201, 2301, 3204) 3301, 4101, 6101, 7101, 8101, 0937 (manufactured by Nippon Kayaku Co., Ltd.), UV6640B, 6100Β, 3700Β, 3500BA, 3520TL, 3200B, 3000B, 3310B, 3210EA, 7000B, 6630B, 7461TE (manufactured by Nippon Synthetic Pharmaceutical Co., Ltd.) ), U-PiCA 892, 8932, 8940, 8936, 8937, 8980, 89 75, 8976 (manufactured by U-PiCA Co., Ltd.), Miramer PU240, PU340 (manufactured by Toyo Chemical Co., Ltd.), etc. Poly-bonded (fluorenyl) acrylate The reaction product of a polyether polyol and a (meth)acrylic acid, for example, ethoxylated trihydroxymercaptopropane triacrylate, propoxylated trihydroxymercaptopropane triacrylate, EBECRYL8l (manufactured by DAICEL CYTEC Co., Ltd.) Among these propylene oligomers, polyester (meth) acrylate, epoxy (meth) acrylate, and ethyl urethane (meth) acrylate are preferably used. The base is 3 or less. The hardening shrinkage of the hardened material when the adhesive composition is hardened by the active energy ray is reduced, and this is enough to lower the glass transition temperature of the cured product, and the adhesion between the color changing resin layer and the transparent film can be favorably maintained. 27 201111176 ( B) The viscosity at a temperature of 20±1.0t is more than the above, 5_pa•s is not full and has a viscosity of at least one basis of mono (meth)acrylic acid vinegar so-called temperature 2〇±1.rc The above, 5〇〇inpa • S is less than at least 1 point within the range of temperature conditions, the measured value of the viscosity satisfies 10mPa*s or more, gofimP. -l ^ . 5UUmPa · s is not full. As used in the present invention The specific example series of the single (indenyl) acrylate having a viscosity of 20±1. 0 C and having a viscosity of i〇mPa · s or more and 5〇〇mPa · s and having at least one hydroxyl group is 2 - hydroxypropyl Acrylate (i 〇. 9mPa · s ) ' 4 monohydroxybutyl acrylate (17mPa· s), 2-hydroxy-3-methoxypropyl acrylate (373mPa · 5), glycerol monodecyl Acrylate: Blemmer_ glm (1 50mPa · s, manufactured by Nippon Oil Co., Ltd.), polyethylene glycol monomethacrylate:

Blemmer PE - 90 (15mPa · s, manufactured by Nippon Oil Co., Ltd.), pe - 2〇〇 (30mPa • s, manufactured by Nippon Oil Co., Ltd.), PE-350 (4 5mPa · s, manufactured by Nippon Oil Co., Ltd.), polypropylene glycol Propionate: BlemmerPP — 1000 (5〇mPa· s, manufactured by Nippon Oil Co., Ltd.), PE — 500 (75mPa·s, manufactured by Nippon Oil Co., Ltd.), poly(ethylene propylene glycol) monodecyl acrylate: B1 Emmer 50PEP — 300 (55mPa • s, manufactured by Nippon Oil Co., Ltd.), polyethylene glycol • polypropylene glycol monomethacrylate:

Blemmer 70PEP-350B (79mPa·s, manufactured by Nippon Oil Co., Ltd.), propylene glycol • polybutylene glycol monodecyl acrylate: Ble_er 10PPB-500B (48mPa • s, manufactured by Nippon Oil Co., Ltd.), polyethylene glycol monoacrylic acid Self-purpose: Blemmer AE —200 (1 5mPa · s, manufactured by Nippon Oil Co., Ltd.), polypropylene glycol monoacrylate: Blemmer AP — 40 0 (48mPa · s, manufactured by Nippon Oil Co., Ltd.), aliphatic epoxy acrylate vinegar: EBECRYL 112 (55mPa · s, DAICEL · CYTEC), PA500 (71. 8mPa · s, manufactured by Toho Chemical Co., Ltd.), etc. 28 8 201111176 The coating suitability of the adhesive composition is good by using a single (meth) acrylate having a viscosity of 10 mPa·s or more and 500 mPa·s or less and having at least one warp group, and the subsequent layer Shows a stronger reinforcement of the 'so that' becomes ideal. The viscosity range is more preferably 50 mPa · s or more, 400 mPa * s or less or even more preferably 70 mPa · s or more and 35 〇 mPa s or less. The mono(indenyl) acrylate of (B) is preferably 35 parts by weight or more and 85 parts by weight or less based on 1 part by weight of the (fluorenyl) acrylate contained in the adhesive composition in an uncured state. . A stronger bond is achieved by being within this range. (Other components) The binder composition may contain a polymerization initiator, a crosslinking agent, an inorganic filler, a polymerization inhibitor, a coloring pigment, a dye, and a defoaming agent in a range which does not impair the effects of the present invention. Agent, fluffing agent, dispersing agent, light diffusing agent, plasticizer, || polymer (inert polymer) adhesion imparting agent, and the like. The charge preventive agent, the surfactant, and the non-reactive property, the viscosity adjuster, the near-infrared ray absorbing material, and the polymerization initiator can be appropriately selected in accordance with the type of the active energy ray. One type or more of photopolymerizers can be used in a state where photohardening is carried out. Further, a photosensitizer can be used arbitrarily. As a series of photopolymerization initiators, 1-hydroxycyclohexyl phenyl ketone, 2 —

Propane-propan-1-one, 1-(4-isopropyl-methylpropan-1-one, thioxanthone, 2-gas 29 201111176 thioxanthone, 2-mercaptothioxanthone, 2, 4 Diethyl thioxanthone, methyl benzoate, 2, 2-diethoxyethyl benzene, /3 - ionone, /5 - bromostyrene, diazolyl benzene, —-amyl cinnamaldehyde, p-didecylamino acetyl hydrazine, ρ-dimethylamino phenyl ketone, 2- gas benzophenone, ρ, ρ'-diox benzophenone, ρ, Ρ'-diethylaminobenzophenone, benzoin ethyl ether, styrene isopropyl ether, benzoin η-propyl ether, benzoin η-butyl fluorene, diphenyl Sulphur shout., bis (2,6-decyloxybenzene) a 2,4,4-trisyl-pentyl squamous oxide, 2,4,6-trimethylbenzene benzene diphenyl squama Oxide, bis(2,4,6-trimethyl alum)-phenylphosphine oxide, 2~ mercapto-1[4-(indolylthio)phenyl]-2 1 - copper, 2 - nodal group - 2 - dimercaptoamino group - 1 _ (4 _ 淋 phenyl) _ Dingyuan 1 - 嗣, 蒽 笨 笨 ketone, α - chlorohydrazine, diphenyl two Ether, hexa-butadiene, penta-butadiene, octabutene, 1-chloromethylnaphthalene, 1,2-octanedione, 1-[4-(phenylthio)- 2-(〇-benzoquinone)]肟, 1一[9-ethyl-6-(2-methylbenzene-brewed)--9Η-leaf.. sit a 3-brewed] 酉 酉 with 1 — (〇—乙醯(肟), (4 monomethylphenyl) [4-(2-mercaptopropyl) phenyl] iodine hexafluorophosphate, 3-mercapto- 2 -butyltetramethylphosphonium hexafluoroate Salt, diphenyl-(p-phenyl-phenylthio)phosphonium hexafluoroantimonate, etc. The amount of the photopolymerization initiator (addition portion) is relative to the composition of the adhesive contained in the uncured state ( The thiol acrylate is preferably used in an amount of from 1 part by weight to 1 part by weight, more preferably from 1 part by weight to 5 parts by weight, based on 1 part by weight of the acrylate. For example, η-butylamine, triethylamine, poly-n-butylphosphine, or the like may be added to control the curability. 30 201111176 As a defoamer series, BYK051, 052, 055, 057, 1 manufactured by BYK Corporation of Japan 790, 〇65, 0 70 ' 088, 354 392, LR-20R, 〇p-8 〇R, 〇p — 83RAT, 〇p-85R, pp_4〇R, SO-80R, SP-60R, BP-70R, CP- 08R, DS made by Nippon Oil & Fats Co., Ltd. — 60HN, etc. / The blistering agent can be added with a solid component of the adhesive composition relative to the uncured state, preferably 〇. 1 part by weight or more, 1 〇 by weight, without reducing the adhesion of the adhesive layer. 5重量份以下。 The weight is more preferably 1 part by weight or more, 0.5 parts by weight or less. As the crosslinking agent, a bifunctional or higher functional (meth) acrylate monomer having a molecular weight of less than 5 Å can be mixed. Specific examples thereof include ethylene glycol dimercapto acrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, and glycerol dimercapto acrylic acid. Ester, 2-hydroxy-3 propylene oxide propyl methacrylate, tetraethylene diacrylate, polyethylene glycol # 4 〇〇 diacrylate, tricyclodecane dinonyl bis (indenyl) acrylate , pentaerythritol hexapropyl acrylate, 1,6-hexyl diol di(methyl) acrylate, hydroxytrimethyl acetic acid neopentyl glycol diacrylate, hydrazine, 9-decane diol Di(meth)acrylate, neopentyl glycol di(meth)acrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, trimethylpropane tri(meth)acrylate, ditrimethylolpropane IV Acrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, 1,4-dinden diol dimethacrylate, 1,3-butane diol dimethacrylate, ethoxylated double Phenol A dimethacrylate and the like. The amount of the crosslinking agent (addition portion) is 1 part by weight or more, and more preferably 5 parts by weight or more, based on the (f-based) acrylic acid acrylate composition of the 201111176 adapter composition contained in the uncured state. Jinsong ιν π s ^ , the following is more preferably, more preferably 1 part by weight or more and 5 parts by weight or less. When the mixing was carried out in an amount of more than 1 G by weight, the hardening of the subsequent layer was excessively carried out, and the effect of the crosslinking agent was not found in the case where the coloring resin layer and the transmissive film were further reduced by less than 0.5 part by weight. As a viscosity modifier, it can be w/ by Tian #^ You have used a few nanometers to hundreds of nm of metal oxide nanoparticles to disperse the solvent in the corpus callosum. Antimony is used as a metal oxide system for dioxo, hydrogen (IV), oxidized, emulsified titanium, zinc oxide, barium sulfate, spirulina / alpha-manuscript, and a mixture of some. May: enumerate, for example, organic sulphur dioxide sputum oxime, methanol dioxosol, iPA-ST, n Hn::ST, NPC-ST-30, following c-ST, job-ST, bribe —ST, ST PMA—ST, PGM—ST, and the range of PL-1-ideal (additions) manufactured by Fuso Chemical Co., Ltd. are based on the composition of the uncured state I. (A, A, methyl), propionate, acid, and

The amount of solid content of the emulsion is 'H ~ 10 #I. The amount of injury is more ideal. 5 υ υ 里 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Then the force is reduced. The light diffusing agent has particles that diffuse light, and can be roughly divided into..., machine fillers and organic fillers such as glassy items and organic true fillings. Examples of the inorganic filler series are sulfuric acid locks, (tetra) acid salts, and the like: emulsified titanium, zinc oxide, and materials #歹']$"y" - such D substances. As an organic filler, "yes, less", for example, propylene resin 曰 "glycol acetal resin, polyvinyl chloride 32 201111176 resin, polystyrene resin, stone & acrylonitrile resin, polyamide resin, polyoxygen Alkane resin, melamine resin, guanamine resin, gas resin, arm carbonate resin, lintelone resin, flat sinter vinyl resin, ethylene-acetic acid ethylene ruthenium polymer, acrylonitrile, and these six', _ - 义 联 联 联. Even in these, from the perspective of high dispersibility, high heat resistance, the color of the helmet without forming (yellowing), it is also best to be propylene A vinyl resin, a polyoxyalkylene resin, and fine particles composed of these burial materials are used as an organic filler. Even in these cases, the result is better in terms of transparency. It is also more desirable to be a microparticle composed of a cross-linking material of a propylene resin. As a light-diffusing agent, it is possible to use an environment of two or more kinds of materials, and it is also possible to mix light diffusion of more than one type. The amount of the light diffusing agent (additional A, ', and force injury) is based on the solid content of the composition contained in the uncured composition of the test agent, and the amount of the light diffusing agent is X1: weight. And the most .... 5~2. The value of the film thickness of the layer is determined by the required turbidity value and the so-called inert polymer system for the Φ human hardening caused by the activation energy ray. In the case of the turbidity value of the meaning of inertness m, in order to achieve the requirement of adding a light diffusing agent, the dryness becomes a state of 5 #m or more, and the brightness of the building is increased by m and the film thickness is made to be more than ^. The shape of the factory is lower, and the layer of the tenth layer can be added for the 薅1. Even in the unpolymerized state, the material is broken. The film thickness of the layer is maintained. The ideal for inert polymerization is the best--grab The above, _ below, and more (4) cutting 彳 ^ ^ downward force to become the surface transfer temperature 33 201111176 as a specific example of the emotional polymer series copolymerization of two or more kinds of urethane resin, A Ethyl acrylate polymer, stupid vinyl polymer, polyacrylonitrile , random copolymers, block copolymers of polyvinyl carbides, polyvinyl acetate 'polyesters, polycarbonate resins, triethyl fluorenyl cellulose resins and butyral resins, in the side chain for carboxylic acid An acid, a sulfonic acid, an ester of these, a graft copolymer obtained by grafting a molecule having a hydroxyl group or a mercapto group, etc. The amount (addition part) of the inert polymer is in an adhesive composition contained in an uncured state. 100 parts by weight of the solid content is preferably 2 parts by weight or more and 70 parts by weight or less, more preferably 3 parts by weight or more and 60 parts by weight or less. When the amount is less than 2 parts by weight, the adhesive layer is designed. When the film thickness is 5 // m or more, the viscosity of the subsequent layer is lowered in the unhardened state. Therefore, the film thickness is unstable, the unevenness of the thickness becomes large, and the haze value is mixed in the state of the mixed diffusing agent. Unstable. When the amount is more than 6 parts by weight, the hardness of the adhesive film in the unhardened state becomes high, and when it is bonded, the incorporation of air bubbles frequently occurs. As the adhesion imparting agent, a monomer in a double-cure form can be suitably used. For example, Laroraer (manufactured by BASF Japan), Karenz®, A0I, ΒΕΙ (made by Showa Denko), and the like can be used. The amount (addition portion) of the Φ a-imparting agent is preferably 1 part by weight or more and 30 parts by weight or less, more preferably 5 parts by weight or more, based on 100 parts by weight of the solid content of the adhesive composition contained in the uncured state. 2 parts by weight or less. As the color-changing resin layer used in the composition of the adhesive of the present invention or the coating method on the transparent film, a roll coating method which is a coating means for the continuous film of the conventional film of 201111,176, and The die coating method, the spray coating method, and the like, such as a transfer coating method and a trench coating method, are not particularly limited. The thickness of the applied adhesive composition is usually 〇.5#m or more, 100# claw or less, preferably more than 50 丨丨 ,, and the hardening speed of the adhesive composition is reduced when the thickness is more than necessary. Therefore, the hardening is not sufficient. When the thickness is too thin, the subsequent force is insufficient, and the household is not ideal. The color-changing resin layer after the application of the adhesive composition can be carried out by a lamination method which is generally carried out, but when it is bonded, the bubbles which are mixed are thoroughly removed. It is possible to reduce the processing speed of the layer by increasing the clamping force between the laminating roll and the pair of rolling rolls in the continuous layer dust treatment, and in the intermittent lamination process, the surface dust is used for vacuum pressing, etc. The method of suppressing the incorporation of the milk foam when the .0^$$%^ σ is pasted. The hardening of the adhesive layer after coating and pasting 5 can be uniformly irradiated with ultraviolet rays by the suitable conditions, in the width-width direction of the long-sized adhesive film composition. The electronic line is coming. 2. Polarizing Plate and Liquid Crystal Display Device of the Present Invention The polarizing plate, the liquid elk deer, and the guanamine 1 device of the present invention include the above-described luminance enhancement bonding film of the present invention. The liquid of the present invention is an ideal form, and has a brightness enhancement thin film comprising the above-described present invention. The polarizing plate in the state of the polarizing plate of the present invention is also a transparent protective film which can be used as a transparent protective film. As the same kind of wax used for protecting the protective film, even if it is methyl methacrylic acid, it is preferable to improve the display by the viewpoint of the durability or display performance of the polymerization. When it is equipped with 5 words, it is particularly preferable to use poly 35 2〇1111176 r, which is a transparent protective thin methyl methacrylate transparent material. It is preferably a thermoplastic resin as a polydecyl methacrylate vinegar. a homopolymer of methyl methacrylate, such as methyl acetonate or methyl acetonate; or alkyl methacrylate and stupid ethylene, vinyl acetate, U-monoethylenically unsaturated carboxylic acid A copolymer of a vinyl monomer having an unsaturated bond such as a vinyl group or an alpha methyl group. 7 Among them, only one type can be used, and two or more types can be combined. The polymethylmethacrylate vinegar is preferably in the range of a glass transition temperature of from 8 Torr to 12 Torr. In addition, • Polymethylmethacrylate vinegar has a high surface hardness when formed into a film, specifically, it is preferably a hard pen (^ 7 q ° 萆 ( (except the test load becomes 5 In addition to 〇〇g, the resin which constitutes the transparent protective film in accordance with JIS K5600 - 5 - 4 is the same as the protective film which constitutes the coloring resin layer for protecting the coloring resin layer, for example, 1 Mm thick plate and full light transmittance of more than 80%, can be used in Putian screen is preferably 85", more preferably more than 90%. The above transparent protective film is in the thickness of 100# m thick thickness, usually It is 20~500g/m2·24h, preferably 5〇~ 疋Μ~200g/m2 · 24h, more preferably 120~1 70g/m2 · 24h. The aforementioned transparent protective film is thick and preferably 100# m or less, more preferably Ιβηι or more, 60//m or less, even more preferably 疋5#]}] or more, 40 #m or less. It is possible to achieve polarization by a thickness of a bottle... Thinning of the board or the display device. The polarizing plate and the aforementioned transparent fork/film are formed. Japanese Patent Application No. 201111176 2, for example, a method of performing plasma treatment on these surfaces, followed by pressure S, a method of laminating through an adhesive layer or an adhesive layer, etc. In this state, an adhesive and The subsequent agent may be applied directly at the time of lamination. However, the adhesive may be applied by laminating the adhesive or the adhesive on the separation portion, and the separation portion may be peeled off to form an adhesive layer. The polarizing plate may be provided on both sides of the polarizer, and the transparent protective film may be disposed on one side of the surface to conform to the brightness enhancement film of the present invention (refer to the embodiment of FIG. 3), or the transparent protection may be provided on one side of the polarizer. The film is bonded to the brightness enhancement film of the present invention on the other side (refer to the embodiment of Fig. 4). The embodiment in which the transparent protective film is provided on one side of the polarizer and the brightness enhancement film is provided on one side can be borrowed. The polarizer can be protected by the number of films of ruthenium and iridium, and the thickness of the display device can be reduced. The preferred embodiment of the liquid crystal display device of the present invention is included in the aforementioned A polarizing plate of a laminated body (also referred to as a composite body) is formed by a laminated structure of a so-called polarizing plate-liquid crystal cell-polarizing plate by a polarizing plate combined with a liquid crystal cell and another layer, thereby controlling an image. Specifically, for example, the polarizing plate included in the composite body is a first polarizing plate, and the first polarizing plate and the second liquid crystal cell of the other layer are held. Thus, the ith polarized light can be used. On the side of the board (that is, on the side of the illuminating device), the second polarizing plate is placed on the display surface side and attached to the liquid crystal cell, and is assembled to the display device. The second polarizing plate includes a material of a polarizer (second polarizer). The system is not particularly limited, and the polarized light 37 201111176 (the first polarized photo #) which is the same as the second polarizing plate may be used. The liquid crystal cell system is not particularly limited, and may be suitable for the liquid crystal display device of the conventional art. Specifically, in the transmission 屮, the eclipse of the seventh ray can pass through the second polarizer and the book surface is written by the display surface. The three are controlled by the liquid crystal cell, and as a result, various modes of the display surface can be used. Liquid crystal cells and polarizers. As a series of driving methods of the liquid 4, for example, TN (Twisted Nematic) type, (j uper Twisted Nematic) type N (Hybrid A1 lgnment Nematic) type,

Plane Switching: Planar Switching), VA (Vertical

Ali chest ent: vertical row (one) type, MVA (Multiple Vertical

Allgnment: Wide-area vertical alignment type, 0CB (Opticai Compensated Bend) type. The liquid crystal display device of the present invention may further include a backlight as the structure, and the moon device may have a structure in which a luminance enhancement film is disposed between the backlight and the liquid crystal cell. More specifically, T is configured such that the luminance enhancement film of the present invention is disposed between the backlight of the liquid crystal display device and the liquid crystal cell, so that the color-changing layer of the moon-shaped layer is reversed and further reduced to the side of the backlight. , to achieve the increase in brightness. The use of the liquid crystal display device of the present invention is not particularly limited, and can be used as a display device for televisions, computers, and other display devices for electronic devices. In particular, it can be used in a wide viewing angle and is suitable for applications requiring high display quality. [Embodiment] In the following, the present invention will be described in more detail based on the embodiments. 38 201111176 The present invention is not limited to the examples of the m columns. In the following ratios of the components, the "weight is from the bottom" means weight and weight "%" is not particularly limited, and the method and subsequent evaluation of the brightness enhancement film produced =! The viscosity measurement method is as follows . (Evaluation method of the brightness enhancement film) (丨_. Application of the adhesive) The coating of the substrate for coating was observed by visual observation, and the coating was applied after the wetting of the dry film The five-stage evaluation was carried out in the event of the occurrence of the opening and the scattering of the surface due to insufficient viscosity. Evaluation 5 : Evaluation of good applicability 4 Evaluation 3 Evaluation 2 Evaluation 1 Applicability is slightly good Applicability General application property is slightly poor Coating property is poor 1 'Measurement of surface hardness of the brightness enhancement film> ” The street weight is 500 g, The scanning distance was 3 〇, and the printing speed was 2 〇 mm/, and the others were measured in accordance with the JIS K56() 〇 -5_4 scratch hardness test method. The hardness of the surface of the color change resin layer of the brightness enhancement film was measured. - The adhesion of the color-changing resin layer and the λ / 4 plate) The incision was made on the surface of the color-changing resin layer of the luminance-enhancing film in accordance with the JIS Κ 5 6 0 0 6 cross-cut method. Evaluation 5: Cutting intersection Small peeling of the coating film. °Pricum 4 ·The film is applied along the edge of the cut and/or peeled off at the intersection. 'The film is partially or fully produced along the edge of the cut. 39 201111176 From and/or the hole The various parts were partially or completely peeled off. Evaluation 2: The film was partially or completely produced along the edge of the cut to partially or completely produce a large peel and/or several parts of the hole partially or completely peeled off. Evaluation 1: The degree of peeling exceeded Evaluation of the state of 2 (measure of viscosity (Measured by A&D company, tuning-fork type vibrating viscosity by vibrating viscometer meter SV-1 0)<Example 1> (i. Manufacture of laminate of substrate color-changing resin layer) Corona discharge treatment was performed on one side of a sheet-like substrate (trade name "ZE〇N〇R ZFl4 - 1", manufactured by 曰本2_株式会社) so that the wetting index became 56 mN/m. On the corona discharge treatment surface, polyvinyl alcohol (trade name "p〇VAL pvA2〇3", manufactured by Kuraray Co., Ltd.) was applied by coating #2, and dried at 5 〇t: 5 minutes. A dry film having a film thickness of 22/m was produced. The substrate having the alignment film is obtained by subjecting the dry film to a rubbing treatment in a certain direction. The rod-like liquid crystalline compound (the compound represented by the following chemical formula (C3)) is mixed in an amount of 29 parts by weight, 7.28 parts by weight of the compound represented by the following chemical formula (C4), and a photopolymerization initiator (CibaSpecialty)

Chemicals company, product name "IRG907") 1. 20 parts by weight, optically active agent (manufactured by BASF Corporation, trade name r LC756) 2.22 parts by weight, surfactant KH40 (manufactured by SEIMI Chemical Co., Ltd.) 〇.〇4 The color-changing liquid crystal composition was prepared in parts by weight and 2-butanone (solvent) 6 〇. 00 parts by weight. 8 40 201111176

ο

CN (C4) The color-changing liquid crystal composition is applied by a die coater on the surface of the alignment film comprising the substrate of the alignment film prepared as described above. At 1001, the coating film was subjected to an alignment treatment for 5 minutes, and the viscous ultraviolet irradiation treatment of 〜. 1 to 45 mJ/cm 2 was repeated twice for the coating film and 100 ° C following the ultraviolet irradiation treatment. After the process of heating for 1 minute, the ultraviolet light of 800 mJ/cm 2 was irradiated under a nitrogen atmosphere to form a color-changing resin layer having a dry film thickness of 5. 3 // m to obtain a laminate of a substrate-color-changing resin layer. body. (ii. Production of 1/4 wavelength plate) A monomer composition composed of 97.8 wt% of methyl methacrylate and 2.2 wt% of decyl acrylate was polymerized by bulk polymerization to obtain resin particles. Rubber particles were produced in accordance with Example 3 of Japanese Patent Publication No. Sho 55-27576. The «particle system, a spherical 3-layer structure, & intramolecular methyl methacrylate and a small amount of cross-linked polymer of allyl methacrylate, inner layer ir, butyl styrene as a main component And a small amount of 41 201111176 allylic acrylate to crosslink the common methyl methacrylate methyl vinegar and a small amount of the 'inner layer average particle size system 〇. 1 9 // m. The soft elastic copolymer, the hard polymer of ethyl enoate, also contains the outer layer of the outer layer of m '. 〇. 22 Mixing the aforementioned resin granules 7 〇 θ 八 1 1 Λ $ 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 伤 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶 橡胶The methyl propionate polymer composition A was obtained (the glass transition temperature was 1 〇 5. 〇.

It consists of a thiol polymer composition A (b layer) and a styrene-butadiene succinic anhydride copolymer (glass transition temperature) at a temperature of 2 80 ° C for &, +, 13 0 °C) (a layer) to escape; 4 4 less r to order co-extrusion' to obtain a three-layer structure of b-layer-a-b-layer and each screen has a 45-70-45 ( Ym) a multilayer film of average thickness. To extend the temperature of 128. . The stretching ratio I 4 times the extension speed of 10 m/min, for the lapped film, the tenter axis extension is obtained, and the extension is made; the basket gift; # / d, 士e上上τ1 layer of the 浔 film Wavelength board. In addition, for the single side of the 1⁄4 wavelength plate, the initial +-field, ^ early face-to-face electric discharge treatment made the wetting index 56dyne/cm. The hysteresis value of the wavelength of 55 〇 nm of the 1/4 wavelength plate is the hysteresis Rth of the thickness direction of -118 nm, and the retardation Re of the in-plane direction is 14 〇 nm. (iii) Production of a laminate of a substrate color-changing resin layer and an adhesive layer) A color-changing resin layer made of the #6 rods in the above (i. production of a laminate of a substrate-color-changing resin layer) Corona discharge treatment surface coating on the surface for corona discharge treatment (treatment conditions: 150 W · min / m 2 ) will be used as an oligomeric type of poly(methyl) acrylate urethane S (the product name "uv-7 〇〇〇B" 'Nippon Synthetic Chemistry (shared by 42 201111176 company, functional base 2 to 3) 54 · 5 parts by weight, as (meth) propylene 曰 曰 曰 2 - 36.4 parts by weight of the base 3-benzophenoxypropyl acrylate (trade name "DA141", manufactured by Nagase ChemteX Co., Ltd., viscosity 373 mPa · s), 4 hydroxybutyl acrylate as other acrylates 9 1 part by weight, methyl ethyl ketone 1 7.8 parts by weight, and a photopolymerization initiator 〇. 9 weight injury (trade name "IRGACURE 651 _|, manufactured by Ciba Specialty Chemicals Co., Ltd.) is mixed and dissolved in an adhesive solution, Drying at 65 ° C for 1 minute to produce a substrate having a film thickness of 3.4 / / m - discoloration Lipid layer-layered layer of the subsequent layer. (iv. Fabrication of luminance enhancement film) Overlapping the corona discharge treatment surface of the 1/4 wavelength plate obtained by the above (manufacturing of a 1/4 wavelength plate) and in the foregoing ( (1). Substrate—color-changing resin layer—manufacturing of the layered body of the subsequent layer) The surface of the obtained laminate on the side of the layer of the layer, at a speed of 0.5 m/min, a narrow pressure of 33 to 4.4 MPa, by layer The press is applied to the press, and the UV is irradiated from the side of the 1⁄4 wavelength plate of the laminate (a large UV irradiation device, a metallization lamp, a irradiation time of 12 s, and a laminated light amount (10)) / (4)., hardening the subsequent layer. Next, the substrate is peeled off by the laminate to obtain an evaluation result of the luminance enhancement thin film having the layer structure of the 丨/4 wavelength plate--the layer-color-changing resin layer, and the luminance is increased into the film 1. Further, it is shown in Table 1. Further <Example 2 > In addition to changing the polyfunctional (meth)acrylic acid ethyl urethane acrylate as a polymer-polymer type (trade name "UV_ 7〇〇〇β" (1), the weight of the product is (1) )Acrylate 43 201111176 of 2 - by base 3 - phenyloxypropyl acrylate (trade name "DA14i",

The luminance enhancement film 2 was obtained in the same manner as in Example 1 except that 72.7 parts by weight and a ratio of 373 mPa·s) manufactured by Nagase ChemteX Co., Ltd. were used. The evaluation results of the luminance enhancement film 2 are shown in Table 1. <Example 3 > In addition to changing the (meth) acrylate to be a monohydroxyalkyl acrylate (trade name "PA500", manufactured by Toho Chemical Co., Ltd., viscosity 718 mPa • s), 7 2, 7 parts by weight, the rest The luminance enhancement film 3 was obtained in the same manner as in Example 2. The evaluation results of the luminance enhancement film 3 are shown in Table 1 () <Example 4 >

In addition to the modification of the oligomer-type polyfunctional (meth) acrylate, the epoxy acrylate (trade name "EBECRYL EB37 〇 8", DAICEL CYTEC company's s energy base 2) 54. 5 parts by weight, The rest is the same as in the first embodiment and the luminance enhancement thin film 4 is applied. The evaluation results of the luminance enhancement thin layer 4 are shown in Table 1. <Example 5 > In the above (manufactured by a laminate of a substrate-color-changing resin layer)

8 44 201111176 酉 酉 曰 曰 曰 9.1 parts by weight, methyl ethyl fluorenone 7 ι 9 parts by weight, photopolymerization initiator (trade name r DAR0CURE Tp 〇), Ciba SpecUity als Amine based on acetal resin (trade name "Urearnou 5242", manufactured by Arakawa Chemical Industries Co., Ltd.) 3 3 2. 2 parts by weight and crosslinked polystyrene particles (trade name), "τ" Research Chemical Co., Ltd. 1), 3 parts by weight of an adhesive solution mixed and dissolved and dispersed, and dried at 65 ° C for 2 minutes to produce a substrate having a film thickness of 1 〇·5 - a color-changing resin layer - followed by lamination of layers The latter is obtained in the same manner as in the example, and the luminance enhancement film 5 is obtained. The evaluation result of the luminance enhancement film 5 is shown in the table. <Example 6 &gt; (v. Manufacture of a diffusion agent mixed adhesive layer The polyethylene terephthalate separation unit (trade name "pET5〇AL", manufactured by Lingteck Co., Ltd.) is coated with a base resin (trade name r SK_Dyne2〇94) using a die coater. Synthetic Chemical Co., Ltd., acrylate Copolymer, solid content rate 25%, solvent: ethyl acetate -2-butanone = 93/7) 4 〇 () parts by weight, multifunctional epoxy crosslinker (trade name "E-AX", comprehensive research chemical shares Co., Ltd.) 1. The adhesive composition of the composition of the weight component and the fine powder (trade name: r Chemisn〇w Μχ3〇〇), manufactured by Synthetic Chemical Co., Ltd.), 3.4 parts by weight, in l〇 The coating was dried at 〇 ° C for 2 minutes to form an adhesive layer having a thickness of 2 Gym, and a laminate having a layer structure of a diffusion-adhesive layer of a separation portion was obtained. (vi. Production of Liquid Crystal Display Device) On the 1⁄4 wavelength plate side of the luminance enhancement film 制造 manufactured in Example 1, 45 201111176, - diffusion of the laminate of the diffusion adhesive layer in the separation portion manufactured by the introduction of (v) The adhesive layer is peeled off, and the ZE0N0R film (trade name "ZF14-1", manufactured by Nippon Paint Co., Ltd.) is bonded to the surface of the color-changing tree, which is bonded to the above (ν). The produced separation part diffuses the diffusion adhesive layer of the laminate of the adhesive layer, peels off the separation part, and bonds the ze〇n〇r film (trade name "ZF14-1", manufactured by Japan ZE〇N Co., Ltd.) ), a brightness enhancement film 6 is produced. The luminance enhancement film 6 was placed on a prism sheet of a liquid crystal monitor of the DATA company, DTV191X (sheet structure: diffusion sheet ^/稜鏡 sheet), and was observed in white. It was not seen that the flash of the sheet was caused by the flashing of the sheet, and the floating of the coloring resin layer was not observed, and the display was uniform in brightness. &lt;Example 7&gt; (vii. Method for producing transparent adhesive layer) The base resin (product name "SK_Dyne2〇94" was applied using a die coater in the same separation portion as that used in the above (v). ) 4〇. Parts by weight and cross-linking agent (trade name "Ε- Αγ ^ ^ ^ AX", multi-functional epoxy cross-linking by Synthetic Chemical Co., Ltd.) 1 1 part by weight of the mixture, dried at 100 C 2 minutes, a film of 9 Å wind film thickness of 20 Å was formed to obtain a layered structure having a layer structure of a separation portion. (viii. Production of Liquid Crystal Display Device) For the brightness enhancement film wavelength manufactured in Example 1 The plate side is subjected to corona treatment to obtain a wetting index - &gt;, adhered to the adhesive layer of the laminated body of the separation layer of the (ν&quot;) manufactured, and is peeled off and separated 46 201111176, and is bonded to both sides of the polarizer. A laminated body (a polarizing plate laminate) is produced by bonding one surface of a polarizing plate for a protective film. The light source side polarizing plate of the liquid crystal panel of the liquid crystal monitor LCD-DTV191X manufactured by 10 DATA Corporation is bonded, and the polarizing plate manufactured as described above is bonded. The luminance of the laminate 1 is increased toward the side of the light source toward the light source side, and is again displayed in white display. In the in-plane, the dot-free defect and the non-color-changing resin layer float, and the brightness is uniform. ; Example 8 &gt; (Manufacture of Liquid Crystal Display Device) Corona treatment was performed on the surface of the 1/4 wavelength plate side of the luminance enhancement film 1 manufactured in Example 1, and the wetting index was 5 6 dyne/cm. #8bars and coated with PVA (product name "G〇hsefimer Z2〇〇", manufactured by Nippon Synthetic Chemical Co., Ltd.) 3. 〇 by weight, glyoxal (trade name "Glyoxal", manufactured by Nippon Synthetic Chemical Co., Ltd.) 5 parts by weight and 97.0 parts by weight of pure water to form a PVA adhesive liquid, which is bonded to the other side of the polarizing plate of the single-sided bonding protective film of the polarizer, and is dried at 2 〇〇t: 2 minutes. The light source side polarizing plate of the liquid crystal panel of the LCD monitor LCD_DTV191X manufactured by DATA Co., Ltd. is bonded to the light source side of the laminated body manufactured as described above, and is placed toward the light source side, and is again displayed in white. Observation was carried out. In the surface, the dot-free defect and the colorless resin layer floated, and the brightness was uniform. 47 201111176 &lt;Example 9 &gt; (χ. Production of luminance enhancement film) Corona treatment was performed Make the (π) system Made a 1/4 surface wetting index of 56dyne/cm, early in the board

-D 0 peels off the separation portion in the (v)-produced layer, and corona treatment (for &lt;&quot; nt a _ for the color-changing layer of the laminate produced in (|) . 1 dry. 1 50W · min / m2), attached to the diffusion adhesive layer to peel off the substrate. σ is corona treated on the opposite side of the surface of the diffusion adhesive layer that is in contact with the color-changing resin layer (processing conditions: i5〇w· is applied in the same manner as in the case of the same example i 4) Example ^: ^ Solution liquid, dried and dried, to obtain a laminate of a back layer - a color changing resin layer - a diffusion adhesive layer - a quarter wave plate. - For a transparent film of ZE0N0K film (trade name "ZFu 1 00" , manufactured by Nippon Co., Ltd., to achieve a wet index of 56 dyne/cm, which is bonded to the adhesive layer of the (X)-served laminate in the same manner as in Example ,, and is cured by UV irradiation. In addition, on the 1/4 wavelength plate side, the diffusion adhesive layer of the laminate of the diffusion-adhesive layer of the separation portion manufactured in the above (v) is bonded, and the separation portion 2 is peeled off, and the ZE0N0R film is bonded (trade name). r ZF14_ 1〇〇", manufactured by ZE〇n Co., Ltd., Japan, manufactures ZE0N0R film-diffusion adhesive layer_1/4 wavelength plate-diffusion adhesive layer-color changing resin layer-adhesive layer-ze〇n〇r film Brightness enhancement film 7. (X丨. Manufacturing of liquid crystal display device) The film 7 is placed on a mirror sheet of a liquid crystal monitor 48 201111176, which is manufactured by I 〇 DATA Co., Ltd. (sheet structure: diffusion sheet/sheet), and is observed in white. The text is not seen because of the edge. The flash of the mirror sheet, and the brightness caused by the heat of the back wire, enhances the bending of the film 2, and becomes a display state in which the brightness of the film is uniform. (Others, the use of the brightness enhancement film for comparison) &lt;Comparative Example 1 &gt; In addition to changing (M-acrylic acid vinegar to become 2: system, viscosity WS, no in-molecular:: externally, the rest is the same as in Example 2 to obtain a luminance-enhancing film weight-increase = degree-enhancing film 8 As a result of the evaluation, it was shown that the single (meth)acrylic acid having no warp group in the proton was used as the adhesion force, and in the color changing resin layer, the damage was observed only by lowering the surface hardness of the fat layer. Color change tree &lt;Comparative Example 2 &gt; In addition to the modification of the oligomer-type polyfunctional (methyl thioglycolate s propyl acrylate) (trade name "UV · · (Sb became an amine chemistry company), Functional group number 6 or more B" Tian Wei The rest of the synthesis was the same as in Example 2, and the results of the evaluation of the film 9 were obtained in the same manner as in Example 2. The film was shown in Table i. 膜^ Film 9. The luminance-enhancing functional (meth) acrylate was used. The number of functional groups is ^ using the concentrating polymer type. When b is above, lowering the connection &lt;Comparative Example 3 &gt; 49 201111176 In addition to changing (meth) acrylate, it becomes a ship (2 hydroxyethyl acrylate vinegar, Toho The brightness enhancement film 10 was obtained in the same manner as in Example 2 except that 72.7 parts by weight of the chemical company, viscosity UmPa·s). It was judged that when the viscosity of (meth) (four) was lowered, the appropriateness of coating was deteriorated, and the production of the brightness-promoting film was hindered. &lt;Comparative Example 4 &gt; In addition to changing (mercapto) acrylate, it became a 16-hexane diol diepoxypropyl succinic acid denatured product (trade name "DA212", Nagase -..., viscosity, viscosity The glow enhancement film U was obtained in the same manner as in Example 2 except for 72 parts by weight of the service pa.s). The evaluation results of the luminance enhancement film 11 are shown in Table 1. When it is judged that the viscosity of the mono(meth)acrylic acid having a thiol group in the molecule is at least the upper limit, the odor and the coating suitability are also deteriorated. (X(1)·Production of Liquid Crystal Display Device for Comparison) &lt;Comparative Example 5 &gt; In addition to changing the luminance enhancement Μ 8 ^ π , ^ 専 film was produced in the same manner as in Comparative Example 1, and the rest was the same as the implementation of " Prepare the LCD TV and observe it in white. Nothing was caused by the floating of the lipid layer of the crucible. &lt;Comparative Example 6 &gt; Flash, however, it was observed that the color-changing tree was changed to the luminance-enhanced thin amine to form a film, and the other was produced in the same manner as in Comparative Example 1, and the other was the same as in Example 7 The device is viewed in white for observation. 50 201111176 In the face, I saw a point defect or a scratch, and the floating layer of the color changing resin. &lt;Comparative Example 7 &gt; The liquid crystal age was prepared in the same manner as in Example 8 except that the luminance enhancement film was changed to be produced in Comparative Example i. . The two Xin Ri Ri wares are observed in white. In the plane, a point defect or a flaw is observed, and the coloring resin layer floats. <Comparative Example 8 &gt; (xi v . Manufacture of brightness enhancement film for comparison)

In addition to being used in the X-ray method and the soil-based method, on the color-changing resin layer, it is coated and dried by the same method as the one of the first embodiment of the present invention. In the adhesive liquid of the first embodiment, the transparent adhesive layer of the adhesive layer (v丨丨) is attached and the separation layer is peeled off, and the rest is the same as that of the separation unit, 丨Q ^, live 1 θ丁丨丨jy prepared a layered body, prepared a ZE0N0R film-diffusion adhesive layer-1/4 wavelength plate-(four) adhesive layer_color changing resin layer-transparent adhesive layer-Z_R 帛 film brightness enhancement film 12 ° (X ν.Comparison of optical display device for comparison) The brightness enhancement film 12 is disposed between the LCD monitor LCD-DTV191X manufactured by Radisson Blu-ray Co., Ltd. (the nickname of the sheet structure, the diffusion film/sheet) On the sheet, it was observed in white. No flash was seen from the sheet, but the brightness of the sheet 3 was observed due to the heat of the backlight being illuminated, and the in-plane distribution of the chromaticity was observed. [Table 1] 51 201111176 I &lt; Comparative Example 4 UV7000B 2~3 18.2 DA212 (NI 1400 CO crj CSJ 卜 c^i 1 1 1 1 1 LO 1-—two CO 1 〇 Comparative Example 3 UV7000B 2~3 : 18.2 2 〇σΐ 05 〇eg 卜 cvi 1 1 1 1 1 〇CO 〇) CQ CO Comparison Example 2 UV7640B 6 or more 18.2 DA141 CO CO oo s eb 1 1 1 1 t Cvl LO 05 GO LO Comparative Example 1 UV7000B 2~3 (N1 〇〇: EA5120 inch C5 LO esa 卜 c^i 1 1 1 1 1 〇 〇cd CO OO less than 6B Example 5 UV7000B CO 1 (Ν1 CNI 00* DA141 CO oo o CN3 卜 5242 ο 332.2 SX130H 〇〇CO LO c&gt; LO CO CD Implementation 4 EB3708 CM LO s DA141 CO CO OO s inch Cd CO 1 1 1 I 1 LO CD ς〇 Example 3 UV7000B 2~3 (N1 od ΡΛ500 oo 20.5 Bu 1 1 1 1 1 CO CO CO CQ ς〇Example 2 UV7000B CO i &lt;N1 OJ od DA141 CO CO Oo Bu 1 1 1 1 1 oo CO Inch CM LO CQ CD Example 1 UV7000B CO l (SI ΙΛ LO | DA141 CO CO oo cd CO 1 1 1 1 1 呀 CO LO 1—^ CQ LO Product Name: Functional Group ii Weight part compound name, product name functional group viscosity (mPa · s) Liquid temperature at the time of viscosity measurement (°c) Weight part product name glass Transfer temperature (°C) parts by weight product name parts by weight «I *ίτ ιττ* ^ 5 5 &- (B) (fluorenyl) acrylate (c) inert polymer diffusing agent color changing resin layer and λ/4 plate Subsequent fiff i lean &lt; composition of the subsequent layer film thickness of the subsequent layer (/nn) evaluation of the appropriate coating brightness enhancement film of the subsequent agent 8 201111176 [Simple description of the figure] The implementation of the brightness enhancement film is shown in Figure 1 A longitudinal sectional view of the present invention is conceptually shown.曰2 is a longitudinal sectional view showing the state before peeling in the manufacture of the coating of the present invention. Fig. 3 is a longitudinal sectional view conceptually showing an embodiment of a polarizing plate of the present invention. Fig. 4 is a view showing another embodiment of the polarizing plate of the present invention. Fig. 4 is a longitudinal sectional view showing a case in which the protective film of the polarizing plate can be replaced by a luminance-increasing film in comparison with the embodiment of Fig. 3. [Main component symbol description] 1~transparent film; 2~adhesive layer; 3~color changing resin layer; 4~coated substrate; 5~polarizer protective film; 6~polarizer; 7~adhesive layer. 53

Claims (1)

201111176 VII. Patent application scope: 1. A brightness enhancement film, which is provided on at least one side of a resin having a color-changing regularity through an active energy ray-curable adhesive layer, and is characterized in that: active energy ray hardening Type of adhesive layer hardening active energy ray hardening type adhesive composition 'Binder composition is uncured state, and at least (A) oligotype polyfunctional (meth) olefinic vinegar 3 having 3 or less functional groups And (B) having a viscosity of 20±1.0 ° C at a temperature of i〇mpa·5 or more ς '500 mPa·s of less than one molecule having at least one mesogenic (meth)acrylic acid. 2. The brightness enhancement thinner according to item 1 of the patent application, wherein the content of (B) is at 35 parts by weight relative to 100 parts by weight of the (meth) acrylate contained in the uncured state. ~85 parts by weight of the standard 3. As claimed in the scope of the patent! The brightness enhancement film of the item, wherein (selected from the group consisting of urethane (meth) acrylate, epoxy (A, I 6 曰 and poly fluorenyl) acrylates Concentrate-type (meth)acrylic acid vinegar. 4, as in the application of the patent (4), the brightness enhancement thinner, the hardening state of the adhesive composition also contains u) (10) grasping the above, the following inert polymerization ^ ^ dish The degree is 5. For example, the brightness enhancement film of the scope of the patent application, the thin film system; the I / 4 plate. The middle 6 · a polarizing plate, A. It is characterized by: on both sides of the polarizer, set 8 54 201111176 A transparent protective film on the side surface, in a certain brightness enhancement film L, a polarizing plate characterized by a transparent protective film, and a brightness enhancement film described on the other side. On one side of the polarizer, the photo-sensing film is attached to the liquid crystal display device of the first application of the patent application. Liquid crystal cell Illumination belt 10. A kind of liquid crystal_display device, the light board is attached to the illumination of the liquid crystal. The patent application scope is set on the side. The patent application scope is set on the side.