TW201234059A - Method for producing polarizing plate - Google Patents

Abstract

This invention provides a method for a polarizing plate comprising: (A) a raw-film-conveying step of conveying a polarizing film, an acrylic resin film and a transparent resin film with the polarizing film being sandwiched between the acrylic resin film and the transparent resin film; (B) a sticking step of sticking the films by sandwiching a laminated body of the films between a first sticking roll being in contact with the acrylic resin film and rotating, and a second sticking roll being in contact with the transparent resin film and rotating; and (C) a curing step of curing the adhesive. In the sticking step (B), the transparent resin film and the acrylic resin film are stuck to the polarizing film in a state that the transparent resin film and the acrylic resin film are tensioned so that the contraction stress on the acrylic resin film side of the laminated body is greater than the contraction stress on the transparent resin film side of the laminated body.

Description

201234059 VI. Description of the invention: [Technical field to which the invention pertains] [_] The present invention relates to a method for manufacturing a polarizing plate, and more particularly to a method of adhering an acrylic resin film on one side of a polarizing film and pasting on the other side of the polarizing film. A method of producing a polarizing plate of a transparent resin film. [Prior Art] [0002] A polarizing plate is used as a constituent member of a liquid crystal display device, and its demand is rapidly increasing with the spread of liquid crystal display devices. Further, with the application of a liquid crystal display device to a large-sized television set or the like, it is required for the polarizing plate to be thinner and cheaper when maintaining or improving its performance. [0003] The structure of the slab is such that at least one side of the polarizing film formed by the polychromatic dye adsorbed and oriented by the dichroic dye is usually on both sides, and the adhesive film is mostly used with triethylene fluorene. Cellulose is represented by the vitamin olerite _, and its thick fabric is m~12_. In this case, the adhesion of the film to the polarizing film is mostly made of a polyvinyl alcohol film. However, the case of the polarizing plate under the polarized light by the water-soluble adhesive is long under the wet parts. The problem of leaving. It is attached to the resin other than the resin to form a paste which is relatively inexpensive to use at least. As such a resin, there is known a technique of using a resin containing a ring of 24 (for example, a resin). For example, a protective film of the acrylic resin of the Japanese Patent Laid-Open No. 2009-122663 (referred to as a bicycle in the range of 曰By or ^ and 'developed a protective film of acrylic resin in a stretch ratio of 50% to 200% 曰本特开 2008-216586 and stretched (refer to the bulletin). By using such stretched acrylic 201234059 The resin can be made into an optical film excellent in mechanical strength and heat shrinkability. [0005] A polarizing plate in which a long protective film is laminated on a long polarizing film can be lightly applied by sticking Light (r〇ll-1〇-r〇U) is applied by means of adhesive bonding. The light-to-roller bonding method a is to laminate a long protective film on a long polarizing film by an adhesive, in this state. A method of adhering a polarizing film and a protective film by sandwiching two adhesive rollers. In the pasting method, an adhesive which is hardened by an active energy ray or the like is often used as the adhesive. Such a hardening adhesive The hardening speed is fast, and it is difficult to bring the film to the moisture [Effects of the Invention] [Invention] The inventors of the present invention have the object of making the polarizing plate more expensive and thinner. A mask f-acrylic resin film on a polarizing film and a polarizing plate having a transparent resin film on the other surface were produced by a roll-to-roll adhesion method. As a result, it was found that there was a tendency to perform roll-to-roll adhesion under normal conditions. When the acrylic resin film and the transparent resin film have different shrinkage stresses, the acrylic resin film side of the polarizing plate protrudes, and the transparent resin film side or the surface agent layer side thereof is concave, that is, it exhibits anti-curling. [0007] - When the polarizing plate is adhered to the liquid crystal cell, an adhesive layer is provided on the outer side of the transparent resin film, and the polarizing plate is adhered to the liquid crystal cell by the adhesive layer. At this time, for the anti-crimping polarizing plate, Since the side of the adhesive layer is concave, there is no problem if it is a small roll, but in the case of curling, there is no bubble in the liquid crystal unit, and bubbles are contained in the center of the adhesive layer. Therefore, there is a problem that the optical characteristics of the bubble are deteriorated or the adhesive strength is lowered. [0008] A may also have a state of so-called positive curl which is convex on the side of the adhesive layer. The positively curled polarizing plate Since the central portion of the adhesive layer is convex, it is possible to press the central portion of the adhesive contact 201234059 to the liquid crystal cell so that the air escapes around and adheres, so if a slight curl is applied, the polarizing plate is adhered to the liquid crystal cell. However, when the positive curl becomes too large, since the polarizing plate and the bending force are large at this time, the adhesive peels off from the end of the polarizing plate bonded to the surface of the liquid crystal cell. On the other hand, it is easy to cause a problem that the polarizing plate is easily peeled off from the liquid crystal cell. [0009] An object of the present invention is to provide a method for producing a polarizing plate which is less likely to cause excessive back curling and which has excellent optical properties or adhesive strength. [Technical means for solving the problem] [0010] The above problem can be solved by the method for producing a polarizing plate of the present invention, which is characterized in that it has a polyvinyl alcohol-based resin film and is adsorbed to the polyethylene. One side of the polarizing film of the dichroic dye which is oriented with the alcohol resin film is adhered by an adhesive, and an acrylic resin film is adhered to the transparent tree moon film by the adhesive on the other side of the polarizing film: The manufacturing method of the present invention includes: (Α) a raw material film transporting step of transporting the polarizing film, the acrylic resin film, and the transparent resin film by sandwiching the polarizing film with the acrylic resin film and the transparent resin film; a step of laminating the acrylic resin film on one surface of the polarizing film by a curing adhesive, stacking the transparent resin film on the other surface of the polarizing film, and then contacting the acrylic resin film a second adhesive roller that rotates in the conveying direction of the acrylic resin film and a second adhesive roller that is in contact with the transparent resin film and rotates in the conveying direction of the transparent resin film sandwiches the acrylic tree a film of the polarizing film/the polarizing film/the transparent resin film to perform the above-mentioned pasting; and (C) a hardening step of 'hardening the adhesive' after the pasting step (β) to make the acrylic resin film And the transparent resin film is bonded to the polarizing film. In the pasting step (Β), the shrinkage stress in the transport direction of the acrylic resin film side of the laminate is higher than the transport of the laminate, and the transport side of the resin film is upward. In a state in which the shrinkage stress is large, the transparent resin film and the acrylic resin film are adhered to the polarizing film while the tension of the transparent tree menis film and the acrylic resin film are applied. 201234059 [0011] In this case, the ratio of the first paste to the circle = degree of contact with the second paste _ circumferential speed side of the adhesive step (B), the contact of the outer layer of the onu_ resin film) is 1.0105 or more. , 1.0141 or less. [0012] Alternatively, the adhesive step (B) is preferably applied to the tension of the eccentricity (miscelling force) of the polarizing area per unit sectional area (pre-adhesive tension). [0013] The manufacturing method according to the present invention The method further includes: a protective film sticking step, in which the acryl resin is attached to the opposite side of the thin surface, the protective film is adhered to the surface 0 [0014] In addition, the transparent resin film is preferably not pulled. A stretched film or a film that has been subjected to uniaxial or biaxial stretching. Further, in addition, the manufacturing method according to the present invention further includes an adhesive coating step of adhering the acrylic resin film to the side of the polarizing film during the raw material film transporting step (Α). (Adhesive surface) The adhesive is applied, and the adhesive is applied to a surface (adhesive surface) of the transparent resin film adhered to the polarizing film. The adhesive preferably contains an active energy ray-curable resin, and the hardening step (C) is preferably carried out by irradiating the active energy ray to harden the active energy ray-hardening resin. [Comparative to the effects of the prior art] [0017] According to the method for producing a polarizing plate of the present invention, an inexpensive and thin-walled polarizing plate can be produced by using an acrylic resin. In addition, in 201234059 on the side of the acrylic resin film, the shrinkage stress in the feed direction is larger than the stress in the direction of the transfer in the transparent resin film side, and the two counties are attached to the polarizing film in the state of shooting two counts. on,',. When the g 2 field is transparent to the resin film side, the acrylic resin film side has a stronger shrinkage stress, and the polarizing plate acts to deflect the acrylic resin film side. Thus, there is a difference in film contraction stress, thereby correcting the excessively convex curl of the convex deformation of the C-side grease due to the difference in the (iv) stress of the two films, the amount of curling becoming small, or the polarizing plate being slightly positively curled. Thus, it is possible to suppress excessive back curling, and to have excellent optical characteristics or adhesion strength (4) polarizing plate. Embodiments [0019] Several embodiments of the present invention will be described below with reference to the accompanying drawings. This is not limited by the members or configurations described below, and these constitutions b are appropriately changed in accordance with the gist of the present invention. [0020] The method of manufacturing the polarizing plate will be described in detail below. The first object is a schematic cross-sectional view showing the steps of the propylene-based resin film and the transparent resin film. If the = surface of the polyvinyl alcohol-based resin having a color-fixing dye is adhered to the transparent resin film 23 by an adhesive. The manufacturing method of the polarizing plate 20 of the present embodiment includes the original wheel feeding step (Α), the no-and-hardening step (C). Further, 'the protective film attaching step is carried out in the present embodiment.】 [0021] In the original "transporting step (4), the polarizing film is transported in a fixed direction and the acrylic resin film 25 is supplied to the surface thereof, and the other is intended to be In the process of the raw material film transporting step (4), the adhesive layer of the olefinic resin film 25 is adhered to one side of the polarizing film 21 by the adhesive, and the adhesive film 21 is applied to the transparent resin by the other adhesive applying device 13. Adhesive is applied to one side (adhesive surface). Polarized light 201234059 [0022] A second adhesive roller 16/clip that is in contact with one surface of the outer side of the acrylic resin film 25 and a surface that is in contact with the outer side of the transparent resin film 23 The laminate of the acid-based resin film 25/polarizing film 21/transparent resin film 23 is rotated by the step 2 (the BV first adhesive light 15 and the second adhesive report 16 are rotated in the direction of the respective g's). The curved arrow in the middle indicates the direction of rotation. [0023] The hardening step (C) is to supply energy from the hardening device 18 to the laminate transferred in the pasting step (8) to harden the adhesive so that the polarizing film 21 Between 25, polarizing film 21 and transparent Japanese film 2 The steps of the adhesive sizing between the three steps are as follows. [0024] [Material film transporting step (Α)] In the 蜱 makeup delivery step (Α), the polarized light is rolled into a roll shape. The film 21 sends out the surface of the polarizing film 21 which is sent at a predetermined speed, and the supply of the strip-shaped acrylic viscous viscous film from the Si t resin film 25 is limited to the manufacturing apparatus, and No special loss reverse sound can be ... ... rabbit, production between the day, the delivery speed should be larger. Specifically, tS about im / minute ~ minutes minutes. With a: C: acid resin film set 'as long as in the delivery step Finally, the film may be conveyed. The film may be held in the fixed direction of the polarizing film 21 or the direction of the transport of the polarizing film 21, for example, in the direction in which the polarizing film 21 is transported. 23' may have a portion that is oriented perpendicular to the direction of the figure to have a parallel rotation. In addition, in the presence of 201234059

In the case where the restriction of the stagnation is carried out, the direction opposite to the direction in which the acrylic resin film 25 or the transparent resin polarizing film 21 is transported may be performed by the direction of the age of the field to the surface of the polarizing film 21. And 彳t'fiiiH2; the age of 'fused with the appropriate direction of the vertical direction sent out ^^,, and the prepared roller to switch direction to the side facing the polarizing film 21, and the input is ordered. [0027] <Protective Film Adhesion Step (D) > Membrane, but the acrylic acid-based resin 25 can be adhered to the polarizing light (A). The material m is rich in health, and is supplied to the film transport step. It is applied to the film or has its partial (four) suppression volume (four) effect. In this case, the steps necessary in the description are arbitrary steps. ^(9) 不疋本发 [0028] Machine. : Adhesive can be adhered using a pro-bonding machine, etc. Micro-resin resin film in this adhesion step (9)

The tension before the adhesion of the protective film can be the same or the same. * 'Month| 【0029】 J There are no special restrictions on the method of adjusting the tension before the adhesion: the torque applied to the adhesion of the film applied to the adhesive device, and the method of using the torque on the roller or the pinch roller. The adhesion speed of the adhesive roller ° = two T Kun is generated to produce a sheet < adhesive coating step > the adhesion between the polarizing film 21 and the acrylic resin film 25 is read, and the adhesion between the resin film 23 is observed, It is carried out by means of an adhesive. Adhesive film can be used at any stage in the film transporting step (A), and is applied to at least one of the adhesive surface of the y-flat film 21 and the adhesive surface of the acrylic resin film 25, and the adhesive film of the polarizing film. And at least one of the adhesive faces of the transparent resin film 23. In the figure, the adhesive is applied to the adhesive surface of the acrylic resin film 25 by using the adhesive coating device 12, and the adhesive is applied to the adhesive surface of the transparent resin film 23 by the adhesive application device 13, but the surface of the adhesive is applied. It is not limited to this. For example, the adhesive may be applied to the adhesive surface of the polarizing film 21 instead of the acrylic resin film 25 or the transparent resin film 23, or all the adhesive surfaces of the acrylic resin film 25, the transparent resin film 23, and the polarizing film 21 may be used. Apply adhesive. However, it is preferable that the adhesive is applied to the surface of the polarizing film 21 in which the acrylic resin film 25 and the transparent resin film 23 are adhered to each other from the viewpoint of operability and the like. In other words, in the raw material film transporting step (A), the portion to be transferred in such a manner that the polarizing film 21 is sandwiched by the acrylic resin film 25 and the transparent resin film 23 is present for the subsequent pasting step (B). This part is pre-coated with an adhesive. Therefore, it is preferable to carry out the adhesive application step in the middle of the raw material film transporting step (A). In the adhesive application step, an adhesive is applied to the surface of the acrylic resin film 25 and the transparent resin film 23 which are adhered to the polarizing film 21, respectively. [0033] Before the application of the adhesive to the bonding surface of the acrylic resin film 25 and the transparent resin film 23, it is also possible to perform a process such as corona treatment, plasma treatment, or ultraviolet 2 beam irradiation treatment. In addition, each side, 仃 cleaning and drying treatment, can also be carried out (4) to treat the dirty surface to change the k cloth and then the drying process. [0034] 结构 ί ί ί ί 12 、 、 、 、 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 结构 结构For example, 201234059 [0035] <Adhesive Step (B) > In the raw material film transporting step (A), the acrylic resin film 25 and the transparent resin g supplied from both sides of the inflammatory side are applied to the subsequent pasting step (8). In the pasting step (8), m3 is supplied to the second adhesive roller 16 which is in contact with each other, and these films are adhered. - The outer side of the coffee pot 23. [0036] 'Selling on the head ^^:' In the usual pasting condition, that is, the circumference of the first sticking roller 15 is fluted. Therefore, in the state where the present embodiment is liable to become excessive, the formula "is imparted tension to the two films 23, 25. 37] The films 23, 25 are adhered to the polarizing film 21. There are various methods for how to apply the tension of the two films 23 and 25, and for example, the following two embodiments are given. The circumference (2)/the ratio of the circumferential speed of the first adhesive roller which is in contact with the outer side of the acrylic resin crucible 25 in the south of the second adhesive roller 16 15 which is in contact with the outer side of the transparent resin film 23 is 丨_5 Above, below the surface. Force, phase film / per unit sectional area of the paste before the top. The ratio of the pre-adhesive tension of the mother's early cross-sectional area of the transparent tree decidua is 1 "the above-mentioned (Β-1) and (Β~~2) embodiments are sequentially described. (β - Ό 1st Embodiment _ ίί 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施Adhesion is performed in a manner of 1.0141 or less. It is assumed that the peripheral speed of the first bonding roller 15 is

Ri and the circumferential speed of the second applicator roller 16 are r2, which means that the relationship of the peripheral speed satisfies the following formula (1). 1.0105^^/^^1.0141 (1) [0039] By the ratio of the peripheral speeds, the acrylic resin film 25 is fed out in a conveying direction with a large force, and the transparent resin film 23 is sent out in a conveying direction with a smaller force. membrane. Therefore, the acrylic resin film 25 is in a state in which a larger tension is applied than the transparent resin film 23. Thus, the acrylic resin film 25 is supplied to the next curing step (c) in a state where the relative shrinkage stress and the transparent resin film 23 are relatively subjected to the tensile stress, respectively, and the adhesive is cured. As a result, the polarizing plate 20 is in a state of being nearly flat due to the difference in shrinkage stress between the acrylic resin film 25 and the transparent resin film. [0040] The ratio of the peripheral speed of the second adhesive roller 16 to the peripheral speed of the second adhesive roller 15 becomes small. The polarizing plate easily becomes reversely curled as shown in FIG. 2(a), and conversely, the circumferential speed is When it is too big, the polarizing plate tends to become the positive curl shown in Fig. 2(b). When the ratio of the peripheral speed of the second adhesive roller 16 to the peripheral speed of the i-th adhesive roller 15 is less than 1.0105, the curl amount of the reverse curl becomes excessively large, and it is likely to be easily inhaled when the adhesive to the liquid helium unit 40 is performed. bubble. When the ratio of the circumferential speed becomes large, the amount of curling of the reverse curl becomes small and is nearly flat, and when it exceeds a certain fixed value, the side of the transparent resin film 23 becomes a convex positive curl. In the case of a slight positive curl having a small amount of curling, since the adhesive layer is convex, it is preferable that the bubble is hard to enter when the polarizing plate 2 is adhered to the single crystal 40. However, when the ratio of the circumferential speed of the second light 16 to the peripheral speed of the second adhesive roller 15 exceeds ^(4) 犄, the curl amount of the positive curl becomes excessively large, and is adhered to the liquid crystal cell. The problem that the liquid crystal cell 4 is peeled off. In the assumption that the curl is positive (+) and the reverse curl is negative (-), the curl amount is about -~·mm, and the circumferential speed in the range of the car according to the embodiment described later, 13 201234059 Than the above, work. just

under. In the k-like manner, by making the peripheral speed R1 of the circumferential speed R 15 of the second adhesive roller 16 slightly larger, the reverse curl or the positive curl of the polarizing plate 20 obtained by setting the ratio of the two is not controlled. . w Ai, the accuracy is more appropriate. [0043] Further, the amount of curl of the polarizing plate 2 is measured as follows. , , and the direction of the f (10)) cut the polarizing plate 2G to be appropriate 'small. In the case of a big cockroach, in the case of a convex-side down, or in an environment where no ί1ΐ2〇=,% is left (the other side of the dotted line is 'in the imaginary plane represented by the quadrilateral if it is added; (4)) to show. In the case where the curl is not observed at the beginning, the ^ is turned on for 1 hour and then becomes convex, and the method of 丨 & μ 7 measures curl 1 but if it is still The amount of change after 1 hour was set. In the method shown in the J-side, the curl is observed in the roll, and the _-transformed polarizing plate is still in the initial state of being placed, and the curl is not observed, and if the curl is observed in the state where the reverse side is reversed, the following is used. The method shown measures the amount of crimp. The amount of curling. As shown in the figure, the side which is convex is turned downward, and the side of the [0044] side is Lia, the side of the fat f 23 is concave, and the side of the acrylic resin film 25 is the acid resin film 25 side. In the face of the datum. In the anti-crimping polarizing plate 20

The positions of additional angles B, C, and D D1 at positions B1 and C1 ^ at A1, respectively. That is, in the figure, 201234059 of the polarizing plate 2 is shown: four: t: two C: and D1, fully floating t state 'but there is also curling of the polarizing plate 20, then four & two or two A situation that has not risen. Of course, if it is not at all. In the joint energy, then, C1, D1 and the imaginary plane quadrilateral ABCD, the height H of the partial filaments A1, B1, C1 and Di, with the maximum value as the curl ^ treeFig. 3 (b The material of the surface of the transparent resin film 23 is convex, and the surface of the acrylic [0046] 杂 ΐΐΖΖ 16 is exemplified by stainless steel, copper alloy, i.e., polyurethane, polyethylene, and rubber; The Tao Jing class counts. Dioxin 2: 1 or 2 types of thermal spraying and 16 is the total consumption; the factory 2 should make the first adhesive roller 15 as a rubber roller, and the second adhesive roller tb as a rubber In addition, the metal is lightly abutted against the resin film 23 side of the acrylic resin film 25, and the stress due to the difference in the circumference tf between the two can be efficiently and uniformly supplied to the film. [0047] In the second embodiment, the viscosity ratio per unit cross-sectional area of the acrylic resin film 25 is in the case of the β-thickness ff sample: the pre-adhesive tension per unit sectional area of the U 2 transparent-resin film 23 (Adhesive is applied. That is, by applying a resin film 25 to the acrylic resin film 25, the shape of the resin = 25 = = paste = the shrinking stress of the acrylic dream from the oxime, to suppress excessive reversal Here, the film before the adhesion can be stretched in the direction of the adhesive film, and the film can be attached thereto, for example, such that the winding force of the correction plate 2G is wound into a roll shape, which is not shown, is larger than the delivery roller. Acrylic resin film 25

iteJI 15 201234059 The rotation speed of the roll has a method of sending out the winding force of 轺* (not shown), making the difference between the two methods. [0048] The pre-adhesive tension per unit sectional area refers to the pre-adhesive tension applied to the film in the width direction of the film. Specifically, it can be expressed by the formula (2). /2 before the adhesion of the membrane section area (N/mm2) = pre-adhesive tension of the film (N) / sectional area of the film width direction (mm) (2). For example, the _^ front tension is the surface N' film When the cross-sectional area in the width direction is n^m, the pre-adhesive tension per unit sectional area is (4) (10) Chi [0049] In this embodiment, the ratio of the pre-adhesive tension per unit area is satisfied in the following formula (3). . The ratio of pre-adhesive tension per unit sectional area = per _ of the acrylic resin film Μ, 黏 刖ϋΐΓ 刖ϋΐΓ pre-adhesive tension / transparent tree ray 23 per unit sectional area of the paste, ~ (3) [0050] The ratio of the front tension should be above 丨. When the ratio of the tension before the adhesion is lower than i j , there is a possibility that the excessively reversed curvature of the side of the acrylic resin film 25 is likely to occur. The upper limit of the ratio of the tension before the adhesion is not particularly limited, but is preferably 2 or less. When the ratio of the tension before the adhesion exceeds 2, the opposite is easy to become excessively positive curl. Further, the circumferential speed ratio of the first embodiment (B-丨) and the _secret force ratio of the second embodiment j to 2) can suppress the effect of the anti-crimp even if it has a gamma arbitrary value. However, by satisfying both the circumferential speed ratio and the pre-adhesive tension ratio, a rainier effect can be obtained. In other words, the ratio of the circumferential speed of the second adhesive shaft 16 to the peripheral speed of the first adhesive roller 15 is 1〇1〇5 or more and 1〇414 or less, and the area per unit area of the olefinic resin film 25 is made. The ratio of the pre-adhesive tension per unit sectional area of the transparent resin film 23 before the adhesion is 1 or more. Thereby, the propylene 16 201234059 acid resin film 25 is caused to have a larger contraction stress than the transparent resin film 23, so that excessive back curling can be more reliably suppressed. [0052] <hardening step (C) > An acrylic resin film 25/adhesive (not shown) conveyed from the pasting step (B), a black film 21/adhesive (not shown) The laminate of the transparent resin film 23 in the order of adhesion is cured in the curing step (C), and the acrylic resin film 25 and the transparent resin film 23 are bonded to the polarizing film 21, respectively, to become polarized light. Board 20. In the figure, the laminate adhered by the bonding rollers 15, 16 is fed into the curing device 18 where it is subjected to a hardening treatment. The hardening treatment can be carried out by irradiation with an active energy ray, heating, drying, or the like in accordance with the type of the binder. As the binder, an active energy ray-curable adhesive which is cured by irradiation with an active energy ray is preferably used. In this case, the hardening step (C) is carried out by irradiation of an active energy ray. The active energy ray for curing the adhesive may be, for example, an X-ray having a wavelength of 1 to 10 nm, an ultraviolet ray having a wavelength of 10 nm to 4 mn, a visible ray having a wavelength of 400 nm to 800 nm, or the like. Among them, the test of the shore-to-county tiger's modulation of the hardenability adhesive composition and its stability, as well as its hard & performance, should use ultraviolet light. The ultraviolet light source can use, for example, a low-pressure mercury lamp having a light-emitting distribution at a wavelength of 4 〇〇 nm or less, a medium-pressure mercury lamp, a high-pressure mercury lamp, an ultra-high pressure silver, a chemical lamp, a black light, a microwave-excited mercury lamp, a metal halide lamp, or the like. [0054] The irradiation intensity of ultraviolet rays is determined by the type of the adhesive or the irradiation time, and is not particularly limited. For example, it is preferable to set the intensity of the effective length of the initiation-activation to G.lmW/em2 to 3G. () mW/em2, £ slave is lmW/cm2~200mW/cm2. When the light irradiation intensity of the curable adhesive composition is less than 0.1 mW/cm, the hardening reaction time becomes long, and if the irradiation time is not prolonged, the hardening does not occur, which is disadvantageous in terms of production efficiency. On the other hand, when the light irradiation intensity exceeds 300 mW/cm 2 , the yellowing of the hardenable condensable compound may be caused by the heat generated during the polymerization of the adhesive composition which is emitted from the lamp wheel. Change 17 201234059 or deterioration of the polarizing film 21. [0055] The irradiation time of ultraviolet rays is also determined by the type of the adhesive or the intensity of the irradiation, and it is not limited. However, for example, it is preferable to set the cumulative light intensity expressed by the product of the irradiation intensity and the irradiation time to 10 mJ/ Cm 2 to 5000 mJ/cm 2 is more preferably set to 50 mJ/cm 2 to 1000 mJ/cm 2 . When the cumulative light amount to the curable adhesive composition is less than 1 〇 mJ/cm 2 , the generation of the active species by the initiator is difficult to be sufficient, and the curing of the obtained adhesive layer is likely to be insufficient. On the other hand, when the accumulated light amount exceeds 5 〇〇〇 mJ/cm 2 , the irradiation time is very long, and thus it is likely to become disadvantageous in terms of production efficiency. [0056] In the case where the hardening step (C) is performed by irradiation of an active energy ray, the thickness of the cured adhesive layer is usually Ιμηι or more, 5 〇μηι or less, but from maintaining a moderate adhesive force and making the polarizing plate In consideration of 20 thinning, it is preferably 2 〇 μηη or less, and more preferably ΙΟμιη or less. [0057] An embodiment of the method of manufacturing the polarizing plate 20 has been described above. Further, in the above-described embodiment, the protective film pasting step (〇) of adhering the protective film to the mother's mother resin film 25 is performed while the raw material film transporting step (Α) is performed, and then the pasting step (Β) and Hardening step (C). However, the timing of performing the protective film sticking step (D) is not limited to the period of the above-described raw material film transporting step (Α). For example, after the raw material film transporting step (Α), the pasting step (Β), the hardening step (C), and the production of the acrylic resin film 25/polarizing film 21/transparent resin film 23, it is possible to perform the maintenance. The protective film is adhered to the surface of the acrylic resin film μ by the enamel adhesion step (D). (Polarizing Plate 20) Next, the polarizing plate 20 will be described. As shown in Fig. 4, the polarizing plate 2A has a layer structure in the order of the acrylic resin film 25, the polarizing film 21, and the transparent resin film 23. Hereinafter, each layer constituting the polarizing plate 20 will be described. Further, [0059] 201234059 (1) Polarizing film 21 The polarizing film 21 is a member having a function of converting natural light into linear polarized light. As the polarizing film 21, a member which adsorbs and orients a monochromatic dye on a polyvinyl alcohol-based resin film which has been subjected to uniaxial stretching can be used. As the polyvinyl alcohol-based resin, a resin obtained by saponifying a polyvinyl acetate-based resin can be used. As the polyvinyl acetate-based resin, vinyl acetate and ruthenium can be exemplified in addition to polyvinyl acetate which is a homopolymer of vinyl acetate. Copolymers of other monomers copolymerized, and the like. Examples of the other monomer copolymerizable with vinyl acetate include unsaturated carboxylic acids, olefins, vinyl ethers, non-amp; and sulfonic acids, and acrylamides having an ammonium group. The degree of saponification of the polyvinyl alcohol-based resin is usually about 8 S mol% to 1% by weight, preferably 98% by mole or more. Polyvinyl alcohol resins can be denatured, for example, can be used to disc Ϊ ί ί ί 或 or polyethylene secrets. The degree of polymerization of the polyethylene __ is about 1000 to 10,000, preferably 15 〇〇 to 5 〇〇〇 left. [0061] A ruthenium film formed by forming such a polyvinyl alcohol-based resin. The thickness of the polystyrene starting material film is not particularly limited, but is, for example, about 5 μm to 150 μm. The alcohol is produced by the following steps: for the polyethylene as described above, the axial stretching can be carried out under the condition of dyeing with a dichroic dye, and the ratio = the axial stretching Love is going on. In addition, you can also make a single order in multiple stages.

SS 19 201234059 Axial stretching method, or using hot fresh shaft pulling: External 'soap shaft stretching can be dry stretching in the atmosphere, or you can use a solvent such as water to push down the work. The wet stretching of stretching is carried out in the state of swelling. Stretching ratio Normally [_4] Stone Dyeing of the dichroic dye contained in the stone can be, for example, by hydrazine. - A method of impregnating a polyvinyl alcohol-based resin film into a heart and a water solution, a color f-dye, specifically, a _ or a dichroic dye. In addition, Yi Shu Lai 'implemented in the water towel before the dyeing New Zealand to make it swell [0065] ~ In the case of the use of the dichroic pigment, usually in the presence of broken potassium, water; A method of dyeing a medium-sized crushed polyethylene resin film to perform dyeing. 8. The iodine content in the aqueous solution is usually about 1 to 1 part by weight per 1 part by weight of water; the potassium telluride content is usually about 5 to 2 parts by weight per [8) parts by weight of water. . The temperature of the aqueous solution used for dyeing is usually about 2 〇〇 c 4 4 〇〇 c. In addition, ^ the time of the water (staining time) is usually about 2 〜 to 18 〇〇 seconds. On the other hand, when a dichroic dye is used as the dichroic dye, the polyvinyl alcohol-based resin film is impregnated into an aqueous solution of a water-soluble dichroic dye to impart a color. The content of the dichroic dye in the aqueous solution is usually about 1 x 10 Torr to 4 Torr, preferably about 1 part by weight, per 1 liter of water. The aqueous solution may contain an inorganic salt such as sodium sulfate as a dyeing assistant. The temperature of the aqueous solution of the dichroic dye used for dyeing is usually from about 20 ° C to 80 ° C. Further, the impregnation time (dyeing time) of the aqueous solution is usually about 1 sec to 18 sec. The boric acid treatment after dyeing with the dichroic dye can be carried out by dipping the dyed polyvinyl alcohol resin film in an aqueous solution containing boric acid. The boric acid content in the aqueous solution containing boric acid is usually from about 2 to 15 parts by weight, preferably from about 5 to 12 parts by weight, per 1 part by weight of water. In the case of using as a dichroic dye, 201234059, the aqueous solution containing the cyanic acid preferably contains potassium peroxide. The content of potassium iodide in the aqueous solution containing boric acid is usually from about 0.1 part by weight to about 15 parts by weight, preferably from about 5 parts by weight to about 12 parts by weight, per 100 parts by weight of water. The impregnation time of the aqueous solution containing boric acid is usually from about 60 seconds to 1200 seconds, preferably from about 15 seconds to about 6 seconds, more preferably from about 200 seconds to about 400 seconds. The temperature of the aqueous solution containing boric acid is usually 5 Torr. 〇 Above 'It is preferably 50 ° C ~ 85 ° C ' is more suitable for 6 〇 QC ~ 8 〇〇 C. The polyvinyl alcohol-based resin film after the boric acid treatment is usually subjected to a water washing treatment. The washing treatment can be carried out, for example, by immersing a boric acid-treated polyvinyl alcohol resin film in a water drier. The temperature of the water in the water washing treatment is usually about yC 4 〇〇 c, and the immersion time is about 1 second to 120 seconds. [0069] After the water washing, drying treatment is performed to obtain a polarizing film 21. Drying treatment can be used. The air is dry, or the far infrared ray is added. The drying treatment temperature is usually about 0 C to 100 C ', preferably 50 ° c to ohm. The drying treatment time is usually from about 6 seconds to about 600 seconds, preferably from 120 seconds to 600 seconds. [0070] Thus, the uniaxially stretched coloring of the polyvinyl alcohol-based resin film was carried out, and the polarizing film 21 was obtained. The film 21 = 2 2μιη~40μιη. [0071] The polarizing film thus obtained is directly supplied to the starting material film of the raw material film and the second alcohol resin, and the polarizing plate is produced. [0072] (2) Acrylic resin film 25 The acrylic resin film 25 is A member having the function of a pseudo-boiler u y t, etc., (4) an anti-f1 and a reinforcing of the oleic acid-based surface; a 甲, a 细 细 细 细 匕 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 Xie Yueri, 疋 疋 丙 丙 丙 疋 疋 疋 丙 丙 丙 丙 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 (Meth)acrylic resin means a polymer of acryl vinegar or methacrylate. A polymer of methacrylate, for example, is preferably composed of a polymer mainly composed of an alkyl methacrylate. The monomer composition of the alkyl vinegar is preferably 70% by weight or more, more preferably 8 Å by weight or more, based on the total monomer total of 10% by weight. 90% by weight or more and the alkyl methacrylate is 9 9.9% by weight or less. Further, the acrylic resin may be a homopolymer of an alkyl methacrylate, or may be 50% by weight or more of methacrylic acid alkyl acrylate and 50% by weight or less of decyl propyl acrylate. A copolymer other than dilute acid ester. Alkyl methacrylate having an alkyl group having a carbon number of 1 to 4 is usually used, and methyl methacrylate is used. [0074] In addition to 'alkyl methacrylate The monomer may be a monofunctional monomer having one polymerizable carbon-carbon double bond in the molecule, or a polyfunctional monomer having two or more polymerizable carbon-carbon double bonds in the molecule. The monofunctional monomer is used, and examples thereof include acrylic acid-based vinegar such as acrylic acid or acrylic acid, styrene monomer such as styrene or alkylstyrene, such as acrylonitrile or fluorenyl. An unsaturated nitrile of acrylonitrile. When a acrylate acrylate is used as a copolymerization component, the carbon number is usually from 1 to 8. In addition, the acrylic resin preferably has no glutarylene imide derivative. Glutaric anhydride derivative, lactone ring structure In the acrylic resin film 25, sufficient mechanical strength and moist heat resistance cannot be obtained. (2-2) Rubber elastomer particles In order to improve flexibility and improve workability, acrylic resin The film may comprise rubber elastomer particles. The rubber elastomer particles are particles containing a rubber elastomer, may be particles composed only of a rubber elastomer, or may be particles having a multilayer structure of a layer having a rubber elastomer. For example, an olefin-based elastic polymer, 22 201234059 diene-based elastic polymer, a styrene-diene-based elastic copolymer, or an acrylic elastic polymer can be exemplified, wherein 'the surface hardness or light resistance of the acrylic resin film 25 is In terms of transparency, an acrylic elastomeric polymer should be used. [0077] The acrylic elastomeric polymer, preferably a polymer based on an alkyl acrylate, may also be a homopolymer of acryloyl acrylate, or may be an alkyl acrylate of 5% by weight or more. And a copolymer other than 50% by weight or less of an alkyl acrylate. A benzoic acid ester ester having a carbon number of 4 to 8 is usually used. Further, examples of the monomer other than the alkyl acrylate may, for example, be an alkyl methacrylate such as a mercapto propylene, a methyl ester or an ethyl methacrylate, a stupid vinyl such as styrene or an alkyl group. a mono-g-monomer such as an unsaturated nitrile such as acrylonitrile or mercapto-acrylonitrile, or an olefin of an unsaturated carboxylic acid such as (mercapto)acrylic acid or methyl propyl (meth) acrylate An ester, such as a dialkyl I hydrazine of a dibasic acid of diallyl maleate, an unsaturated carboxylic acid diester of a diol such as a propylene glycol di(meth) acrylate, and the like Functional monomer. [0078] The rubber elastomer particles containing an acrylic elastic polymer are preferably a multi-layered tumbling particles having a layer of an acryl polymer; or the outer side of the oleic acid type elastomer may have a fluorenyl propylene group. The layer of the polymer intended as the main body = the particle of the two-layer structure; or the particle of the three-layer structure of the layer of the polymer of the main body of the methylene acrylate group on the inner side of the acrylic elastomer polymer. The monomer domain of the polymer as the main component is the same as the polymer which is exemplified by the methacrylic wire. It is produced by the method described in the publication of Japanese Laid-Open Patent Publication No. 55-27576. The number average particle diameter of the rubber elastomer contained in the 10 nm rubber 14-body particles may be i (Jnm to 300 nm 〇 丄 丄 91 P*, and the acrylic resin film 25 may be laminated on the use of an adhesive, and may be used. It is difficult for the acrylic resin film 25 to be peeled off from the adhesive layer. 23 201234059 The number average particle diameter of the rubber is preferably 5 〇 nm or more and 25 〇 nm or less. The acrylic polymer is mainly composed of acrylic acid. The rubber elastomer particles having HZ are mixed with the outermost layer of the acrylic bismuth particles of the matrix and the acrylic resin of the matrix. The body, the radiant: the outermost layer === er = and the bisacrylic acid The main component of the polymer is methyl ester-based polymer, the middle layer is acrylic acid, the middle layer is acrylic acid, and the outermost layer is polymerized with methyl methacrylate In the case of the three-body particle of the object, the inner layer of the innermost layer of the inner layer (4) the two layers of the olefinic transpolymerization (four) color are observed [0081] In addition, in the specification, the number average particle diameter of the rubber elastomer particles will be The rubber elastomer particles are mixed to the parent resin, and the oxygen is biased against the cross-cut color. The average value of the number of parts of the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _体 nm [0083] The group is manufactured by the following method: Acrylic resin which is obtained by obtaining 7% of the precursor; or after the rubber and the resin are obtained, Mixing the two to prepare the body particles 24 201234059 The acrylic resin composition may contain, as needed, a pigment or a coloring agent, a fluorescent whitening agent, a dispersing agent, a heat stabilizer, a light stabilizer, a red agent, Ultraviolet absorber, charge inhibitor, oxidation inhibitor, and lubricant-soluble admixture. W Shou [0085] UV absorber is added to absorb the ultraviolet rays of 4 〇〇 nm or less to improve the long-term properties. It can be used as a benzophenone ultraviolet absorber: ^ and a triazole ultraviolet absorber, an acrylonitrile ultraviolet absorber, etc., which are known to be a double (4·(!,!,3,3,methylbutyl) )_6-(5)- Benzo-azol-2-yl) phenol), 2-(2,-trans-based _3, _tert-butyl-5,-nonylbenzene) _5_ 素 拍 二 二 二, 2, 4--di-tert-butyl-6·(5-chlorobenzotris-2-yl)phenol, 2, 2, Diterpene -4,4'-dimethoxydibenzoquinone_, 2,2',4,4,-tetramethylenedibenzoquinone g is equivalent. Among the two, 2, 2, · Azulene (4_(l i 3, 3_tetraf-based t-g-triazol-2-yl)phenol) is suitable. The concentration of the external absorbent can be selected in a range in which the transmittance of the acrylic facial grease 25 is preferably 10% or less, more preferably 5% or less, below the wavelength of the lung. The method of containing ultraviolet ray absorption is exemplified as a method of tying up the olefinic noodle cream (4), and a method of supplying the method or the like may be employed. When the ground soil is smashed, the outer absorbent ' can be exemplified by a hetero compound, a metal salt thereof, a cyanine compound, a compound, a nickel compound,

δ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, . The amount of the infrared absorbing agent 25 3 201234059 can be appropriately adjusted so that, for example, the light transmittance of the acrylic resin film 25 at a wavelength of 800 nm or more is 10% or less. The glass transition temperature Tg of the acrylic resin composition is preferably in the range of 80 °C to 120 °C. Further, the 'acrylic resin composition is preferably a composition having a high surface hardness when molded into a film. Specifically, it is preferably a composition having a pencil hardness (load: 500 g, based on JIS K5600-5-4) and B or higher. In addition, the flexural modulus (JISK7171) of the acrylic resin composition is preferably 1,500 MPa or less from the viewpoint of flexibility of the acrylic resin film 25. The bay modulus of elasticity is more preferably 1300 MPa or less, and most preferably i2 〇〇 MPa or less. The flexural modulus varies depending on the type or amount of the acrylic resin or the rubber elastomer particles in the acrylic resin composition. For example, the higher the content of the rubber elastomer particles, the smaller the general flexural modulus. Further, as the acrylic resin, a copolymer having a mercaptoalkyl acrylate and an alkyl acrylate is generally used in comparison with a homopolymer using an alkyl methacrylate, and the bending elastic modulus is generally small. [0090] In addition, as the nano-heteroparticles, the acryl-transfer polymerization using the above-mentioned layer structure has a smaller modulus of elasticity than the elastic-like polymer particles having the three-layer structure described above; The smaller the average particle diameter of the acrylic rubber elastomer or the number of rubber elastomers = Therefore, it is preferable that the above-mentioned both of the above-mentioned formulas = acid = [0091] acid 5 ==== 25 is a multilayer structure, and may exist in The composition of the outer layers of the two layers is not particularly limited. For example, the thickness of the rubber elastomer particles or the rubber elastomer particles may be 2012 细 2012 2012 2012 26 201234059 may be the content of rubber elastomer particles or rubber elastomer particles The rubber elastic body of the medium has an average particle diameter of the layer composed of the acrylic resin composition as defined above. [0092] It is typically a two-layer or three-layer structure, for example, a two-layer structure of a layer composed of an acrylic resin composition/acrylic resin containing no rubber elastomer particles or a combination thereof, It may be a three-layer structure composed of a layer of an acrylic resin composition, a layer of an acrylic resin or a composition thereof containing no rubber elastomer particles, or a layer of an acrylic resin composition. In the acrylic resin film 25 having a multilayer structure, the surface of the layer of the acrylic resin composition may be a surface to be adhered to the polarizing film 21. In the case where the acrylic resin film 25 has a multilayer structure, the content of each layer of the rubber elastomer particles or the above-mentioned mixture may be different from each other. For example, a layer containing an ultraviolet absorber and/or an infrared absorber may be layered, and a layer containing the ultraviolet absorber and/or the infrared absorber may be interposed therebetween. Further, the content of each external absorbent of the layer of the acrylic tree and the five layers may be higher than that of the layer containing no rubber elastomer particles, or the composition of the composition, σ The latter should be 〇5 wt% to 10 wt%, more suitably 1 wt 〇 / 〇 ~ 'the latter should be 〇 weight % ~! The weight %, more preferably the 〇 weight of 5 ° t ' does not deteriorate the color tone of the polarizing plate 2G, and can effectively isolate the outer line, which is sufficient to prevent a decrease in the degree of polarization during long-term use. [0094] p. B 4. , j 的 的 的 的 的 , , 进行 进行 进行 进行 进行 拉伸 拉伸 拉伸 拉伸 拉伸 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. 4. The lipid film 25 may be a non-oriented film which is not stretched, or the film thickness of the polarizing plate 20 may be easily increased. However, in addition, the operation of the sapphire is good. Such a propylene is thick, thick, and has a advantage that the film of the acrylic resin film 25 is thinned and has a daily rigidity by stretching. Laraco brain stretches unstretched by any method

S 27 201234059 [0095] The propylene surface _ can be formed by any method to form a film as an unstretched film = the stretch film is preferably transparent and practically not. For example, I have known a solvent scale method in which a melt-leaked surface method is used to reduce the melting of a resin in a solvent on a flat plate. [0096] The method of forming a film in the state of the resin composition is exemplified by the case of the pressure molding die (4). The metal report in this case should be = face. Thus, an unstretched film excellent in surface flatness can be obtained. Further, in the case of the acrylic resin film 25 of the structure, the acrylic resin should not be combined with other acrylic resin compositions, and the refractive index of the acrylic resin should not be (four), preferably one to one, and more = [0097] by an acrylic machine. The method of forming the unstretched film is carried out by stretching. The stretching method can be exemplified by the use of the pull type = extension, or the direction of the stretch, and the successive stretching of the financial direction. [0098] The haze value of the film 25 will be described. Fog = value 'Reading light transmittance is the total light fog when illuminating visible light. The L example is assumed to be such that the smaller the haze value, the better the transparency of the film. In addition, 'internal [0099] the haze value of the acrylic resin film 25, such as Ι %, +, & μ # # below, more generally A 05% or less, the internal haze value is U% i should be lower than the M value of 5% or less. If the internal efficiency value exceeds the value and the external haze value exceeds the execution time, the light of the transmission film is 28 201234059 and the liquid crystal display device is turned off. Further, by the acrylic resin film 25, the six parts of the pure acrylic resin film 25 are not provided, and the surface is scratched in the early step. For example, a hard coating process is performed from a group of liquid crystal modules. It can also be used to cure the surface treatment of bismuth. 20 Ϊ production, %, r ΐτίΐΪ 25 as a protective film of the polarizing film to form a polarizing plate Τ upper handle check surface 25 silk surface treatment material film: light plate 2 〇 1i outside 'can also be said to be adhesive, equipped The base material is part of it. For the surface treatment of the C-based resin film 25, the anti-glare treatment can be carried out in consideration of the moiré on the lens and the fine film. (3) Transparent resin film 23 The film 23 is preferably made of a resin having excellent transparency. Such a resin, a cellulose resin, a polycarbonate resin, a polyvinyl alcohol resin, a B resin, a (meth)acrylic resin, and a cyclic olefinic resin f polypropylene. A simple olefinic resin, a poly-aromatic resin, a polyamidene resin, and a polyamine. The uniaxially or biaxially stretched stretched film was subjected to the unstretched film of the yam (23). a [0102] When the transparent resin film 23 is a stretched film, a a phase difference is imparted by stretching. The film to which the retardation is applied may be a wavelength plate such as a 1M wave plate or a 1/2 wavelength plate, or may be a viewing angle compensation film or the like. The film thickness of the retardation film is usually from about ΙΟμπι to 200 μm, preferably from 2 μm to 12 μm. , [0103]. . In the case where the viewing angle compensation film is used as the retardation film, it is necessary to consider the mode adopted in the liquid crystal cell 40. For example, in the case of the liquid crystal cell 40 of the Vertical Alignment (VA) mode, the field of view compensation film can be used: having a positive inherent birefringence

S 29 201234059 The polymer film shot is uniaxially stretched, and the index ellipsoid has ηχ>η positive A-plate; the transverse stretch or the money axis ^ ζ = system => ζ ζ a biaxial film; or a Negative C-plate with a relationship of 16% > η 。. , ηχ is the in-plane retardation axis of the film (χ axis' ^ 射率, ny is the in-plane phase axis (y-axis: orthogonal to the in-plane and the late-phase axis, and nz is the thickness (z-axis) The refractive index of the direction. [0104] As the transparent resin film 23, it is particularly suitable to use biaxial stretching ==== coffee reading, silk standard = coefficient using the following formula (4) ' meaning 'and 'film Phase of _ when thickness is d

Nz= (nx—nz/ (nx—ny) (4) R〇= (nx— ny) xd (5) Rth=[ (nx+ny) /2—NJ xd (6) [0105] In addition, based on the above Equations (4) to (4), N: R〇 and the phase difference Rth in the thickness direction are respectively given by the following formulas (5) and (6) ΧΓ = rr, / 0 ° , , / \ ^ / 丄, Z 卜丁, demon The relationship between the R 〇 and the phase difference in the thickness direction can be expressed by the following formula (7): Nz = Rth / R 〇 + 0.5 (7) [0106] In the case where the viewing angle compensation film is used as the transparent resin film 23 The in-plane phase = difference R is preferably in the range of 30 nm to 300 nm, especially in the range of 50 nm to 26 〇 nm. Further, the Nz coefficient is preferably in the range of 1.1 to 7, especially in the range of 1 4 to 5. From these ranges, the value of the optical characteristic can be appropriately selected in accordance with the viewing angle characteristics required for the liquid crystal display device to be applied. 13 [0107] In the case where the transparent resin film 23 is a retardation film, the polarizing film is pasted. In the case of the retardation film 21 and the phase difference film, the angle formed by the absorption axis of the polarizing film 21 and the retardation axis of the retardation film may be appropriately selected depending on the application. For example, in the case where the retardation film is a viewing angle compensation film, The angle formed by the absorption axis of the polarizing film 21 and the slow axis of the viewing angle compensation film is substantially 0 or 90. 201234059 [_] On the other hand, in the case where the transparent resin film 23 is an unstretched film The phase difference 'is hardly found to function as the fineness 21 _ protects. The resin film 23 as the unstretched film can be applied to the mode adopted by the liquid crystal cell 40, for example, lps (In Plane Switching, horizontal direction) (4) Adhesive (not shown) The adhesive is used for the adhesion of the polarizing film 21 and the acrylic resin film 25, the polarizing film 21, and the transparent resin film 23 The adhesive is hardened by irradiation, heating, drying, or the like of an active energy ray, and is capable of bonding the polarizing film 21 and the acrylic resin film 25, the polarizing film 21, and the transparent resin film with sufficient practical strength. Specifically, for example, the following adhesive composition may be mentioned. A cationically polymerizable compound such as a glycidyl ether epoxy compound, an alicyclic epoxy compound, and a propylene oxide compound, in admixture Photocationic polymerization initiator A cationically polymerizable photocurable adhesive composition; a radically polymerizable photocurable adhesive composition obtained by blending a photoradical polymerization initiator with a radically polymerizable compound such as an acrylic compound a rail-curable adhesive composition obtained by blending a cationically polymerizable or radically polymerizable compound as described above with a thermal polymerization initiator, that is, a thermal cation generator or a thermal radical generator; A water-soluble or hydrophilic cross-linking epoxy compound or an urethane compound is blended with water or a water-dispersing liquid of a water-soluble resin having a reactive group such as a polyvinyl alcohol-based resin, as needed. Type of adhesive composition. [0110] Commercially available products can be easily obtained for the epoxy compound. As an example of a commercial item, the trade names are: rEpik〇te sold by Japan Epoxy Resins, "EPid〇n" sold by DIC (share), and "Ep〇t" sold by Dongdu Chemical (share) ADEt〇", "ADEKA resin" sold by ADEKA, "Denacol" sold by NAGASECHEMTEX (shares), "D〇w ep〇xy" sold by Dow Chemical Company, and Nissan Chemical Industry (shares) "Tepic" and so on. 31 201234059 [0111] Further, an alicyclic epoxy compound in which an epoxy group is directly bonded to a saturated carbocyclic ring can be easily obtained as a commercially available product. Examples of commercial products include "Cell〇xide" and "Cycl_r" sold by DAICEL Chemical Industry Co., Ltd., and "Cyracure" sold by The Dow Chemical Company. The curable adhesive composition containing an epoxy compound may further contain a first-line curable compound other than epoxidation. The active energy other than the epoxy compound and the curable compound 'e" are, for example, an epoxy secret compound or a (IV) compound. In the middle of the & ionic polymerization, it is preferable to use an epoxy propylene compound. [0113] ^Oxygen and propylene complex can also easily obtain materials. (4) The sales name of the product is: "ETERNACOLL·, etc. sold by the East Asia Synthetic Co., Ltd." ("Earth_〇财, 邠邠兴(股)". [0114] ^入^有裱氧The curable compound of the compound or the propylene oxide compound is preferably used in order to make the curable adhesive composition of the second compound solvent-free. It is also used in the composition of the sensitizing agent. Compared with the powder of the dissolution alone, 11 the compound which has been subjected to the organic solvent and dried, [0115], the initiation of the strength and the hardening rate; the wrong salt of the aromatic sulfonium salt or the aromatic salt; the iron- The propylene dimer complex μ, the ionic polymerization initiator can be used alone or in combination. The product is 'receiving an active energy ray such as ultraviolet ray ΐ ΐϊ丨 ΐϊ丨 ' ' 只要 只要 只要 只要 只要 只要 只要 只要 只要A variety of [0116] 32 201234059 Photocationic polymerization initiators can be easily obtained as a commercial product. Examples of commercial products are given. The respective trade names are: Uni〇n sold by Nippon Kayaku Co., Ltd. Carbide Sales of "cyracure", San-apro (shares) sales of photoacid generator "CM", green chemical (shares) sales of photoacid generators "taz", "bbi", "DTS", (shares) ADEKA sales ^ADEKA OPTOMER", "RHODORSIL" sold by Rhodia Corporation. The amount of the cationic polymerization initiator to be added is usually from 5 to 20 parts by weight, preferably from 1 to 15 parts by weight, per 100 parts by weight of the photohardenable binder composition. When the amount of the photocationic polymerization initiator is less than 0.5 part by weight, the hardening becomes insufficient, and the mechanical strength or the bonding strength of the adhesive layer is lowered. In addition, when the amount of the photocationic polymerization initiator exceeds 20 parts by weight, the ionic substance in the adhesive layer increases, and the moisture absorption property of the adhesive layer becomes high, and the durability of the obtained polarizing plate 2〇 is lowered. [0118] A photocurable adhesive composition may contain a photosensitizer as needed. By using a photosensitive agent, the reactivity is improved, and the mechanical strength or the bonding strength of the adhesive layer can be further improved. Examples of the photosensitizer include a carbonyl compound, an organic sulfur compound, a persulfide compound, a redox compound, an azo compound, a diazo compound, a dentate compound, and a photoreductive dye. An example of a carbonyl compound capable of becoming a photosensitizer for the month b is exemplified by benzoin, such as benzoin = benzoin, and α,α-dimethoxy-α-phenylacetophenone. Such as 9 '.10-dibutoxy oxime ruthenium compound; such as benzophenone, 2, 4 - di- ketone ketone, o-benz benzoic acid methyl vinegar, 4, 4 ' _ two (two Methylamino)diphenyl ketone and j:4'-di(diethylamino)triphenylhydrazine-dibenzimidone and its derivatives; such as 2-chloroindene and 2-mercaptopurine Stuffed derivatives; such as N_methyl hydrazine, 10,000 N: ri ten (four) steel derivatives; such as α, ° " diethoxy silk _ benzene _ derived Ϊ; and _ derivatives. It can be photo-sensitized, such as 2_chloro 9_oxysulfide ♦ star and 2-isopropyl 9-oxo-sulfur, 4 喔 derivative. In addition, the compound or uranium-brewed compound can also

S 33 201234059 is used as. These photosensitizers may be used singly or in combination of two or more. The compound = yttrium group [0121] and in the range of 0.1 to 2 parts by weight.

For the photocurable adhesive composition, it can be used in various additives. The additive may, for example, be a blending agent, a tackifier, a second brand agent, an oxidation preventive agent, a chain defoaming agent, or the like in the range of (4)^/,^. True filling agent, flow regulating agent, plasticizer, [0122] ΐΐΐ ΐΐΐ ΐΐΐ 组合 , , , , 只要 只要 只要 只要 只要 只要 只要 只要 只要 只要 只要 只要 只要 只要 只要 只要 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但The range is more suitable for the range of 5 () mpa = 2, its viscosity is less than 10 pools _, can be coated as filial =. f is coated with f, and there is also difficulty in making the spotless direction = that the coating operation is limited, and it is difficult to obtain the temperature, and the composition is adjusted to be hungry with the u-degree juice measured by 6 〇.

[0123J (5) Adhesive layer (not shown), which is used for the purpose of bonding the polarizing plate 2 to the liquid crystals, and the like, for example, the polymerization of the acrylic acid Transparency is only 姑, ώώ; = also take the zero-type acrylic adhesive, or heat resistance, etc., even if the addition of binary = weather resistance or peeling separation problems, it is suitable, wet "Under the case, it is also difficult to produce floating [0124] For the acrylic base polymer constituting the acrylic hybrid, the vinegar portion is suitable for use. 34 201234059 Use: having a mercapto group, an ethyl group, a butyl group, or a 2-ethylhexyl group An alkyl acrylate having a carbon number of 2 Å or less and an acrylic copolymer copolymerized with a (fluorenyl) acryl monomer having a functional group such as (meth)acrylic acid or 2-hydroxyethyl (meth) acrylate In the case where the adhesive layer containing such an acrylic copolymer needs to be peeled off due to some defects after being adhered to the liquid crystal cell 40, residual adhesive or the like is not generated on the glass substrate, and the adhesive layer can be relatively easily Peeling. Used to adhere to dilute acid copolymers The temperature change is preferably the following, more preferably ^Glc ^. In addition, the acrylic copolymer usually has a weight average molecular weight of more than 100,000. [0125] ^ Adhesive layer adhesive, can be dispersed with a light diffusing agent The diffusion adhesive is used to impart a green color to the adhesive layer. The light-diffusing agent may be a fine particle or a compound (polymer) which can be formed as long as it has a refractive index of a base compound having a bis-adhesion. The light-diffusing agent having a refractive index of about 1 to 2 is formed by the acrylic base polymer as described above, and the light diffusing agent having a refractive index of about 1 to 2 is selected as a material. The brightness or the testability should be considered. It should be a near-monodisperse side 峨 (4) recorder, which is a spherical and connected = knife-discharged recording. It is suitable for the horizontal diameter of 2μιη~6μιη left [0126] composed of inorganic compounds. Microparticles 1.76), oxidized stone eve (refractive index 145 exemplified by oxidation (refractively composed of microparticles, for example, by organic compound (polymer...diluted acid as beads (refractive index resin beads (refractive index 15 〇夂S曰/Benzene The rate of polymerization is 1.46), and the resin beads are folded ([^(/) (4), polyvinyl chloride beads ([0127]. 35 201234059 The amount of light diffusing agent is mixed, considering the adhesion of the light diffusing agent. The agent layer is appropriately determined depending on the desired fog f value or the brightness of the liquid crystal display device to which it is applied, but is usually about 3 to 30 parts by weight based on 1 part by weight of the base polymer constituting the pressure-sensitive adhesive layer. [0128] The haze value measured according to jjS K7361 of the adhesive layer in which the light diffusing agent is dispersed is considered from the viewpoint of ensuring the brightness of the liquid crystal display device and the blurring or glare of the display image. The range of 2%% to 8〇%. [0129] Each component (base complex, photocrosslinking agent, etc.) constituting a transparent slag-dispersing agent is dissolved in a suitable solvent such as ethyl acetate to form an adhesive. The agent is a state in which the solvent-insoluble component such as a smashing agent is dispersed. The tiif agent composition is applied onto a transparent resin film 23 or a release enamel (not shown) and dried to form an adhesive layer. [0130] Sex. The electrostatic "adhesive layer" to be carried is preferably provided with electrification prevention, etc., when the release film on the hemispherical agent layer is adhered to the liquid crystal cell 40, ί ί ΐ Λ Λ Λ ' ' 若 若 若 若 若 若 若 若 若 若 若 若 ' ' ' 4()_Electrical riding_帛, [0131] A method of imparting charge prevention property to an adhesive layer, for example, a method of coating an ion conductive composition of particles, metal oxide fine particles, and the like; The manufacturing, distribution and uppering of the polarizing plate; the minimum retention time of the desired property is about 6 months. Consider what you want

condition. Measured line _ 纟 层 layer of the layer Therefore, the surface of the active moon 罝 line should have high transmittance. The two H 36 201234059 changes the secret 3 to 20 after the reaction of the crosslinking agent, and the properties of the liquid crystal cell 40 are not adhered to the adhesive layer by the irradiation of the liquid crystal unit 40, for example, at a temperature of 23. Mature around the day, in the charge of money to pay ... material secret 65 /. (4) Brothers paste. [0134] The thickness of the adhesive layer is appropriately determined depending on the bonding strength, etc., but the polarizing light does not impair the properties such as workability and durability, and the thickness of the layer is preferably about 3 to about ¥. In addition: ίΐϊίίί ί 5 5S can make the LCD display I ensure that when viewed from the front or from the oblique direction, it is not easy to produce blur or glare of the displayed image. (6) Protective film (not shown) Among the acrylic tree lamellas 25, the protective film can be laminated on the opposite side of the surface to be adhered to the polarizing film 21. The protective film is a peelable film and is a member for avoiding damage, abrasion, and the like of the surface of the propylene film 25. The protective film is formed, for example, by a base material of a transparent lining, and a thief-coating layer laminated on the surface of the base film. When the surface of the light-retaining plate is 2 Å, it is adhered to the acrylic resin film, and is peeled off from the acrylic resin film 25 at the time of use. [0136] The protective film can be easily obtained as a commercial product. Examples of commercial products include Fujimori ("Mastac" sold by the company, SUN-TEC, which is sold by Sun Yat-Sen, and "Shen", which is sold by the company. "Toretec", etc., which is sold by Toray Film Processing Co., Ltd. [6137] (6-1) The base material film base material film is not particularly limited as long as it is composed of a transparent resin. Such a transparent resin can be, for example, Illustrative: C37, represented by polymethyl methacrylate 2012 20125959 olefinic resin, olefin resin represented by polypropylene or polyethylene, poly(p-phenylene sulfonate) or polyethylene terephthalate The polyester resin represented by the company is excellent in transparency and uniformity, and has high viscosity and low cost. Therefore, it is preferable to obtain ethylene diformate. [01381 In addition, in order to improve rigidity and enhance viscosity, The film formed into the film of the base material has the effect of blending the film of the core material material which becomes crystal in the polymer molecule to increase the crystallinity of the polymer and increase the base species. The inorganic nucleating agent' For example, talc, clay, Examples of the carbonic acid ίί / / 'organic nucleating agent' include, for example, a metal compound such as an aromatic acid-reducing metal ruthenium or a ruthenium-polyethylene hexanolate. The above material is suitable for the above-mentioned metal salt. Density polyethylene. In addition, the content of the base weight ϋ ΐ ΐ 宜 宜 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 The appearance of the second 15μΠ1~75μΐη. When the thickness is lower than 15, the surface, the original surface protection performance is reduced. When the other degree becomes higher, it is difficult to be strong, and there is also a strong tilting and peeling [0140] The above base ratio is preferably in the long direction (md). The above-mentioned tensile modulus is too small, and the operation is also caused by the tension of the resin film 25. Hard coating; The anti-sweat treatment and the anti-reflection treatment are carried out, and the adhesive layer of the adhesive layer of (014-2) (6 to 2) is used, and a known adhesive for re-peeling such as an acrylic adhesive can be used. In terms of viscosity strength, it should be high in elasticity and have In addition, from the viewpoint of the viscous strength, the adhesive layer is preferably thicker, and the adhesive layer may contain a charge preventing agent or the like in order to prevent static electricity from being generated during peeling. [0142] The acrylic adhesive' may be exemplified by a propylene such as butyl acrylate, ethyl acrylate, or octadecyl acrylate, or a polymer of 2 - ethyl acrylate. And an adhesive composed of a polymer copolymerized with a polar monomer. The polarity of the single [, for example, (曱) acrylic acid, (mercapto) acrylic acid 2-hydroxyethyl, ^ methyl) acrylic acid 2- Base propyl, (meth) acrylamide, hydrazine, hydrazine 曱: hydrazine ammonia $ ethyl (曱,) acrylate, glycidyl (meth) acrylate having carboxylate & base gas, epoxy A monomer such as a base. Further, the present invention can be further specifically exemplified by the following examples in which an adhesive is blended with a polyisocyanate-based compound, an epoxy compound, a nitro-propargyl compound, etc., but the present invention is swiftly Limited to some examples in court. In the following examples, the part indicating the usage amount, such as the requirement of the thief!1, is the weight basis. In addition, the measurement of the physical property value in each example was carried out by the following method. [0144] <Measurement of Curl Amount of Film> (4) A method based on the description of Fig. 4, which is a method of adhering a _ resin film, a polarizing plate, and a polarizing plate with an adhesive layer. The state of the film and the state of the lion's film are such that the side of the ridge is convex downward to determine the amount of curl. Let _Yishu Lai fiber read the condition as positive curl. [0145] <Measurement of tensile modulus of film><1>, elastic modulus, using an automatic plotter (model number) by the method specified in the 7161 "Test method for plastics_tensile properties" AG-i, (shared by Shimadzu Corporation) "measured at a temperature of 22. 〇 relative humidity of 53%" into 39 201234059. Example 1> (a) Production of Acrylic Resin Film (Acrylic Resin and Acrylic Elastic Polymer Particles) The methacrylic acid ruthenium methacrylate/acrylic acid-weight ratio %/4 Acid resin. In addition, it is a three-layer structure of elastomer particles, the innermost layer of which contains a hard polymer, that is, a mixture of mercaptopropionate and a small amount of mercaptoacrylic acid, and the intermediate layer contains a soft elastomer, that is, the main layer. a copolymer of acrylic acid butyl vinegar, a plate of ethylene and a small amount of methacrylic acid acrylonitrile; the outermost layer comprises a hard poly-man, a copolymer of acrylic acid §1 and a small amount of acrylic acid; The average particle diameter of the elastomer which is the intermediate layer of i is MOnjn; 弹性 elastic polymer particles. It is only a pull of the genus (10) and is used as an acrylic acid [0147] (Production of an acrylic resin film) The above (4) face is reversed with the above (4) acid-polymerized age-old former / L-J3: reset ratio The combined pellets were melt-kneaded by a twin-screw extruder to form pellets of the resin-like composition. The pellets are cast into a small surface. The mask of the t4t=5°+C is used for the temperature of the slave. The temperature is slaved to 45°C. The sacrifice of 2 J is reduced by the person who is squeezed (4) and the female is melted to produce an acrylic resin film. Am, order [0148] (b) The adhesion of the acrylic resin film to the thickness of the double-layer layer of the adhesive layer is used as a protective film. The tensile modulus of the polyparaphenylene SC to (10)) was 3,500 Å. In order to make the adhesive layer and the acrylic tree overlap the machine, the acrylic resin film and the enamel film j are attached to the resin film, and the 250_300 surface is curled. . The curl value at this time is a minimum of 7.0 faces, and the maximum value of 201234059 is 31.0 mm, which is a positive curl. [0149] (c) Production of a polarizing plate is adhered to a surface of a polarizing film having a polyvinyl alcohol film and iodine adsorbed on polyvinyl alcohol, and a protective film made of the above (b) is adhered to an acrylic resin film. a biaxially stretched film of a cyclic olefin resin (transparent resin film) obtained from ZeZn (Japanese), which is a thickness of 5 〇μηι, to the other side of the polarizing film. "Zeonor Film" (phase difference in the in-plane phase, phase difference in the thickness direction ί^=124ηιη), to produce a polarizing plate. [0150] When the adhesive film is adhered, the protective film is adhered to the acrylic resin film and the cyclic olefinic ruthenium film is coated on the polarizing surface I (four) surface, and the wire-curable adhesive composition is applied as an adhesive. After the respective coated surfaces were overlapped with both surfaces of the polarizing film, they were passed between two adhesive members 15'16 to integrate the films. Here, the first adhesive roller 15 uses a rubber knee having a rubber surface, and the second adhesive roller 16 uses a metal roller having a chrome plating on its surface. In addition, the circumferential speed of the second adhesive roller 16 disposed on the side of the cyclic olefin resin and the ratio of the peripheral speed of the first adhesive sheet 15 disposed on the acrylic resin film side (ratio of the peripheral speed) Sighed 1.0113. By setting the ratio of the peripheral speeds in this way, the shrinkage stress in the transport direction on the acrylic resin film side is made larger than the shrinkage stress in the transport direction on the side of the cyclic olefin resin film. In addition, at the time of pasting, the adhesive film is adhered to the acrylic film and the ring-shaped thin resin film, respectively, and the pre-adhesive tension is applied in the direction along the transport direction (longitudinal direction of the film), and Adhered to the polarizing film in the state. The pre-adhesive tension is generated by the difference in the rotational speed of the delivery roller that feeds the film and the winding roller that winds the laminated polarizing plate. The measurement of the tension before the bonding was carried out using a tension sensor provided in front of the bonding roller. Further, the area of each of the acrylic resin film and the cyclic olefin resin film was calculated, and the pre-adhesion tension per unit sectional area was calculated by dividing the pre-adhesive tension obtained as described above by the cross-sectional area. When the acrylic resin film per unit section 201234059

Product = pre-adhesive tension is L, and the tension per unit cross-sectional area of the cyclic olefin resin film is set to Ty Temple, and the pre-adhesive tension per unit cross-sectional area of the acrylic resin film is relative to the ring shape. The ratio of the pre-adhesive tension per unit sectional area of the olefin-transferred resin film (pre-adhesive tension ratio) IVT^0.94. [0152] After the adhesion, an ultraviolet irradiation device using a metal halide lamp as a light source is used so that the cumulative amount of light in a wavelength of 320 nm to 400 nm is 2 μm/cm 2 from the side of the cyclic olefin resin film. Ultraviolet irradiation was performed to bond and the obtained polarizing plate was wound on a roll. (d) The evaluation of the curl of the polarizing plate was carried out by placing the above-mentioned (polarized plate obtained by 〇) at 25 C of 250 mm×300 mm for 1 hour. Thereafter, the amount of curling was measured according to the above method in a state where the protective film was peeled off. It was found that the large value of the anti-crimp of the ring-faced resin turned into a concave was 39.0 mm. The results are shown in Table 1. [0154] <Example 2> In the (e) towel of Example 1, the closing speed The ratio (10) 35 is 丨 _, and a polarizing plate is produced in the same manner as in Example 1. The amount of curl of the same plate as in (4) is obtained by the amount of crimping of the olefin woven (four) concave, and the maximum value is 79.0 mm. The results are shown in Table 。. [Example 3] In (e) of the first embodiment, the ratio per unit sectional area is 1. 1. Others are the same as in the first embodiment. A polarizing plate was produced, and the amount of fn of (d ^ was found to be a concave back curl of the side of the cyclic olefin resin film, and the maximum value was 4.0 mm. The result is shown in the table [0156] ° <Comparative Example 1> In (4) of Example 1, the ® circumferential speed ratio (10) 35 is 丨. surface, and the other 42 201234059 ί light plate. Under this condition, The ene-resin film i) was measured by the same method. The curl of the polarizing plate was changed to the concave side of the thin resin film side, and the large value was -107.0 mm. The results are shown in Table 1. [0157] <Table 1> Experimental peripheral speed ratio Example 1 1.0113 Example 2 1.0107 Example 3 1.0113 Comparative Example 1 1.0098 [0158] (e) The outer illustration of the data 5 is the ratio of the tension before the use of the phase Enter

盥 Curly is curling. As shown in the figure, it can be seen that when the peripheral speed ratio is the ratio of the peripheral speed and the vertical axis y is the amount of curl, it is returned to _ y-44i / ϋ:. In addition, the correlation coefficient at this time is R2 = 0.9539. Y-4421 lx—44754 (8) [0159] In addition, an experiment in which the ratio of the same peripheral speed (1.〇113) is used] 43 201234059 When compared with 歹'9, the sectional area per unit is known. The ratio of the pre-adhesive tension is u = 3', and the amount of curl is greatly changed and the anti-curl is suppressed as compared with the example in which the ratio is 〇94. _, it can be seen that the pre-sheet t and the i.eux on each unit sectional area are more preferably u or more as in the embodiment 3. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a step of attaching an acrylic resin film and a transparent resin film to a polarizing film. 2(a) and 2(b) are perspective views showing a state in which the polarizing plate is positively curled and reversely curled. 3(a) and 3(b) are perspective views schematically showing a method of measuring the amount of curl. 4 is a schematic cross-sectional view of a polarizing plate. Fig. 5 is a graph showing the results of the examples and comparative examples. [Main component symbol description] 12 Adhesive coating device 13 Adhesive coating inspection 15 First adhesive roller 16 Second adhesive pro 18 hardening device 2 Polarizing plate polarizing film 23 Transparent resin film 25 Acrylic resin film 40 Liquid crystal cell The four corners of the AB, C, and D polarizing plates 20 are not curled. The four corners of the Al Bl, C1, and D1 polarizing plates 20 are the four corners of the anti-crimping.

Claims (1)

201234059 VII. Patent application scope: 1. A method for manufacturing a polarizing plate, which is provided on one side of a polarizing film having a polyvinyl alcohol resin film and a dichroic dye adsorbed to the polyvinyl alcohol resin film. The adhesive is adhered to the acrylic resin film; on the other side of the polarizing film, the transparent resin film is adhered by an adhesive, and the manufacturing method of the polarizing plate comprises: \A) a raw material film transporting step to use the acrylic resin film and The transparent resin film transports the polarizing film, the acrylic resin film and the transparent resin film sandwiching the bismuth polarizing film; and the field (B) bonding step is performed on one side of the polarizing film by a curable adhesive The acrylic resin film is deposited, and the transparent resin film is laminated on the other surface of the polarizing film, and then the first adhesive roller that is in contact with the acrylic resin film and rotates in the transport direction of the acrylic resin film, and The second adhesive roller that is in contact with the transparent resin film and that rotates in the transport direction of the transparent resin film is sandwiched between the acrylic resin film/the polarizing film/the transparent resin film. Adhesively bonding the acrylic resin film and the transparent resin film to the polarizing film; and (C) a hardening step of hardening the adhesive after the bonding step (B) to cause the acrylic resin film and the a transparent resin film is adhered to the polarizing film; and in the pasting step (B), the shrinkage stress in the transport direction of the acrylic resin film side of the laminate is greater than the transparency of the laminate The transparent resin film and the acrylic film are adhered to the polarizing film in a state where the shrinkage stress in the transport direction on the resin film side is large, and the transparent resin film and the acrylic resin film are applied under tension. 2. The method of manufacturing a polarizing plate according to claim 1, wherein the bonding step (B) is based on a ratio of a peripheral speed of the second adhesive roller to a peripheral speed of the first adhesive roller. 〇1〇5 or more and 1〇141 or less. 3. The method for manufacturing a polarizing plate according to the invention of claim i or 2, wherein the step (8) is to apply a tension per unit sectional area of the acrylic resin film before the polarizing film to the polarizing film. The ratio of the unit per unit of brittle force of the transparent 45 201234059 resin film before the polarizing film is 丨 or more. 4. The method for manufacturing a polarizing plate according to any one of claims 1 to 3, which is further adhered to the opposite side of the surface of the polarizing film protective film. Face, paste the protective film. In the method for manufacturing a polarizing plate according to any one of the above-mentioned claims, the transparent resin film which is stretched is a film which is not stretched, or is subjected to uniaxial or biaxial drawing 6, such as The method for manufacturing a polarizing plate according to any one of the items 1 to 5 of the patent, further comprising: an adhesive coating step, in which the acrylic film is mixed during the step of conveying the raw material film (A) The fine surface is coated with a dopant, and the adhesive film is adhered to the surface of the polarizing film to apply the adhesive. The method for producing a polarizing plate according to any one of the above claims, wherein the adhesive comprises an active energy ray-hardening resin, and the hardening step (c) is performed by the irradiation activity. The active energy ray-hardening resin is cured in such a manner. 46