TWI271222B - Manufacturing method of optical film and manufacturing device used in method - Google Patents

Abstract

The present invention consists of a method for manufacturing an optical film, a paper-threading method for the film, a manufacturing device used in the manufacturing method, an optical film made by the manufacturing method, and an image-displaying device provided with the optical film. The manufacturing method for the optical film can stretch the film without breaking it; hence, the productivity rate is increased. The manufacturing method for the optical film is a method in which the film is immersed in a solution. The manufacturing method for the optical film is as follows: when the film is not yet in contact with the solution, the film is disposed on at least one pair of transmitting rollers that revolve in a specific transmitting direction, stretching the film tight and immersing it in the solution.

Description

12713⁄4 pif.doc IX. Description of the Invention: [Technical Field] The present invention relates to a manufacturing apparatus having a method for at least 涔 & a method of manufacturing, a film, and a use thereof Image display device.焱柃之光学 [Prior Art] A liquid crystal display device using an optical film is used in various uses of televisions. In recent years, as liquid crystal display devices, such as computers, have to have a large area, the large-area size of the liquid crystal display device has been increasing, and the above-mentioned optical film, such as liquid crystal, has been continuously enlarged. The display device is said to be at least through the process of dyeing, cross-linking and stretching, and the like: a longer film of the knife. For example, the following specializing method for the manufacture of the slick film. There are the following partial polymer and -Α ·:, the direction of the axis, the film is formed from a mixture containing a hydrophilic high-concentration from the I-color dye, and then the use of an aqueous solution containing an acid is carried out. 1中亦姐-上上>合仃仃处理. In the case of the reason, the example ^: The (four) acid aqueous solution is treated at a temperature of 55 C or more. Song He = above the temperature ^ pit In the bath, if the film is used, it will be excessively swollen and softened when it is stored. In this film, the film is sized to be broken from the softened portion. Producing a crack in the replacement of a film or film I27l?? 2 pif.doc: The film is made thinner by the operation of the longer film. The length of the film is so long. Therefore, the film is moisturized (secret. n). The softening will become more noticeable, which may cause the film to break. ^Before starting the manufacturing, etc. In order to solve the above problems, the long film is placed in the bath through the (4) words in the bath. The purpose is to raise the light of the bird's stretch material to cause _ rupture, and to increase the output rate of the two borrowing όΓ = method and thin paper pass method. Moreover, its purpose is to mention two, operation (four) and production efficiency of optical manufacturing The purpose of the film m is to provide an optical display having high transmittance and high polarization and an image display device excellent in display characteristics. The inventor of the present invention has determined the above-mentioned _ point, and The method of making, the method of thinning, the method of using this method, the optical film obtained by the method of manufacturing, the method of using the figure, and the study of reading it. The result is found to be By structuring the composition to achieve the above purpose, thereby completing In order to solve the above problems, a method for producing an optical film of the present invention, a method for producing an optical film having a process of immersing a film in a solution, and a second method, wherein the film is not in contact with a solution , at least in a specific direction - after the transfer of the film is turned over, the film becomes 7

Pif.doc 1271222 1〇4ΦΓ| The state of tension and not age, and in the «lower series of crushing solution according to the above method, due to the lowering of the sputum - collapsed in the solution towel, ^ 防 ^ ^ ^ In the relaxed sorrow immersion solution, nwm is accompanied by a paper-passing operation and is immersed in a long-term immersion in the case of excessive swelling and softening. In addition, since the middle (four) Lin has passed the manual use of the guide wire, it is possible to improve the complexity and the production efficiency. membrane. It is preferable that the film is made of a hydrophilic polymer and is thin: the above-mentioned material towel preferably has a linear shape between the pair of transfer rolls. ^ #2好岐, using the inclusion of the solution as the above solution, and performing the crosslinking treatment by dipping the lye into the solution. In the state in which the film is stretched, it is stretched from the state by rvr liter in a state of being immersed in the above solution, in the method of the test, and in the state of being stretched without being slack. Therefore, it is possible to prevent the film from being broken. This can produce an optical film excellent in heat resistance and water resistance. The film is stretched in a solution to achieve 5 to 7 times the initial state. 5H, in the above method, is to stretch the film until it is in the initial state °, but is not excluded from the solution before stretching, after the pre-formation (4), to achieve the stretching ratio The square I27im pif.doc is stretched in the yoke of the first 5 times before the threat is applied. After that, the square ΐ 'will stretch the thin _ to the initial state 3 times to 5 times the pool, so < 2 can be immersed in the state of tension and not loose, and the heat resistance of the bow • Water resistance, and it is possible to suppress cracking during stretching due to over-manufacturing, and to make the optical film: The film is a polyvinyl alcohol film. Conduct; J workers. The attack method can be easily used for the alignment of the hydrazine or the dichroic dye. It is preferred that the above crosslinking agent is er or sand. The optical lens can be manufactured by easily improving the water resistance and polarizing properties of the film. . The following 疋心贝 has a solution temperature of 50 for the above film. . Above • 2: Easy: optical film with transmittance, high polarization and high polarization. The lower side is convex = the film is impregnated, so that the film is immersed in the solution toward the solution, and it is surely immersed in the solution without generating a space, and it is also possible to make _° =. In the case of the dip material, the secret method is in the special paper. The method is 9 127 pif.doc 2, which supports the above film from the lower side, and is erected by pressing the thin to the bottom. 'When the film is immersed in a bath solution located below the chamber, the above-mentioned pressing member = the object is pressed down to the lower side, and is preferably dipped in a state of being tight and not slack. The above-mentioned film is mounted on the above-mentioned film, and the film for manufacturing the optical film of the present invention is a film made of a water-based polymer, which is characterized by _transfer to a specific direction; one or holding member 'between the above-mentioned pair of conveying rollers, and in the multiplexing ξ: ϊ: when supporting the transfer roller, the film is supported from the lower side; the bath, the two pairs of transfer immersion Crushing into the solution; according to the human component, it is located in the above film press = and when the thin material is broken in the solution towel, the film will be impregnated in a state of being tight and not loose. In the solution, 由于ί," is not softened by the fact that the film is not immersed in a relaxed state due to excessive swelling of the wadding. Moreover, the impregnation of the film does not require the movement of the supporting member and the pressing member in the state of the film below the lower side; In this way, before the start of manufacturing, etc., dissolution = production efficiency. χ, the film can be evenly immersed in the collapse, so thin; on the side of the member, the film is pressed down to the surface to make the film immersed;;; = and becomes convex on the lower side. As a result, it is possible to make the film thin and free from air accumulation. 10 127 Tensioning 'The above---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- under,! (4) The optical film can be produced by suppressing the film from being excessively swollen and softening, and stretching the film with a difference in the circumferential speed of the film. Thus, an optical film excellent in heat resistance and water resistance can be produced. ^

(pas^Ltf- between the feed rollers, the working height guiding member guiding member for adjusting the film, the working height can be viewed from the inside of the bath, and is located in the bath and with the upper support member Or at least the height of any one of the members (four). The above configuration can be immersed by the fact that the guiding member is located at a height different from at least one of the upper member and the pressing member in the bathtub. The height or process distance of the solution in the solution. The film; the above-mentioned support structure of the above-mentioned support structure, the surface of the human component or the guide member and the contact with the moon fruit have a curved surface.

According to the above configuration, the film can be smoothly conveyed by reducing the resistance between the film and the supporting member, the pressing member or the guiding member. Further, in order to solve the above problems, the optical film of the present invention is obtained by a method in which a hydrophilic polymer is used to form a thin brain in a state of being stretched and not slack, and In this state, the film is immersed in a solution, and the film is stretched in the range of 5 to 7 times of the initial state in the solution. The optical material contains a hydrophilic polymer, and the film is immersed in a solution in a state of being stretched and not slack, and is stretched in a solution to obtain a film. Therefore, the optical film of the above composition is not prematurely swelled, and the body is excellent in water quality. Further, since the initial state: the state is 5 to 7 times, the film is formed at a high magnification, so that an optical film having a transmittance and a 咼-polarity can be obtained. Further, in order to solve the above problems, an image display device of the present invention is characterized in that it is provided with the above-described optical film. It is excellent in display characteristics due to the high transmittance and high optical film of the optical film.

[Effect of the Invention] The present invention can achieve the following effects according to the method described above, according to the present invention, in addition to the state in which the film is stretched and not slack: impregnated in the solution towel, which can prevent In the long day, immersing in the solution 1 can reduce the excessive swelling of the film to soften and rupture during stretching. As a result, the yield can be increased, and an optical film having high transmittance and high polarization can be produced. Moreover, since it is not necessary to pass the film through the guide roller or the like in the bath

The use of manual work or guides by the first month of LY can improve workability and productivity. Furthermore, the danger of manual work in the bath liquid can be avoided. Further, an optical film obtained by the production method of the present invention can be provided, which is excellent in heat resistance and water resistance, and has high transmittance and high degree of polarization. Further, an image display device of the present invention can be provided which is excellent in display characteristics. [Embodiment] An embodiment of the present invention will be described below with reference to the drawings. The 12 I271222fd〇c order omits unnecessary parts in the description, and is easy to explain, and there is a partial enlargement or reduction. (Method for Producing Optical Film) First, a method for producing an optical lining will be described with a polarizing plate (four). However, the method of manufacturing the optical film is simply limited to this. As a method for producing an optical film according to an embodiment of the present invention, three sides or an early surface of a polarizer manufactured by a dyeing process, a cross-linking process, a stretching process, and a drying process of a long film are attached to three sides. The material is turned over and the polarizing plate is formed. The above-mentioned film is not particularly limited, and examples thereof include a polyvinyl alcohol-based film, a one-part demylopected polyvinyl alcohol-based thin film, a poly-p-methyl group, a red-antimony film, and an ethylene-vinyl acetate copolymer film. , such as m::, a polymer film such as a cellulose-based film, a polyvinyl alcohol-based polyethylene, a polyethylene-based alignment film, and the like, and a polyethylene-based alignment film, which absorbs the impregnated solution and In the case of the affinity diol-based film - the dichroicity is due to the iodine or film in the dyeing process described below. 4 is better in alignment, and generally uses polyvinyl alcohol thin

In the material of the Kmrty4^^^ film, VF-9P75RS ethylene, which is manufactured by K-ray (for example, etc.) A (Kuraray C〇., Ltd.), is used. As the derivative of the poly(10) alcohol, in addition to polyalkylene:,: di: group c, an unsaturated carboxylic acid such as ethylene, propylene or the like which is ruthenium, mercaptoacrylic acid or crotonic acid, 12713⁄43⁄4 pif. Doc $alkyl ester, the degree of denaturation of acrylamide and the like is about 1000~10000, : more preferably 2_=.; good: =: = 1 degree of 80~100 mol%. ° Using a base to a polydecene-based film, it may contain additives such as a plasticizer. As the plasticizer, a polyhydric alcohol (tetra) triol, a diglycerin, a triglyceride, and a wide range of substances can be cited, and for example, the use amount of the propylene plasticizer can be cited. Second, alcohol, polyethylene glycol and the like. Resin thin thin 2G wt%. It is good to set the impregnation of the above-mentioned bond film of polyethylidene alcohol, and at least 6 m" in the state of not being contacted with Luo liquid, at least in the specific direction, the conveyance is conveyed at least - after the transfer roller It is carried out without being in a state of relaxation. Secret, 3 ^ _ tightened on the solution surface, and then set to straight (10): = 疋 The film is roughly parallel. Thereby, it is possible to prevent tempering (for example, "about 3 times or more of the initial state of the film" to cause excessive softening. In order to make the film to be stretched, it is not necessary to apply a tensile force in the longitudinal direction of the film. ~, 歹 ^ film material, temperature, draw ratio, etc. are appropriately set. The root-bonding dyeing process is a process of unstretching or stretching to a dichroic material. In this process, for example, Mining, H with water or pure water for the unstretched _ pull = lower method. The film is immersed in the hole where the dyeing solution is placed, and the film stretched in winter is also immersed in the release The dyeing solution 'the pool two will be unstretched ^ or the unstretched film in the method of releasing the dyeing solution === _, the stretching ratio is 15^=丁14 I271224^pifd^ In the case of using an unstretched film, the thickness of the film is used, which is about 30 to ΙΙΟμηι. Further, the thickness of the film after stretching is preferably about 5 to 70 μm. Further, the stretching can also be performed. In multiple stages. As for dichroic materials, use hydrazine or dichroic dyes. In addition to the use of iodine in the case of hai, etc., as a dyeing solution, it is generally a hard aqueous solution. As for the aqueous solution of the dish, in addition to the use of moths, for example, moths, etc., containing the secret agent as a dissolution aid, etc. The concentration of the gorge is 〇~〇·5 wt% left 曰 right, preferably 0·02~〇·4% by weight; the hardening word concentration is 〇〇ι ～1〇% by weight, and further preferably 〇 〇 2 to 8 wt% used. When performing (four) color treatment, the temperature of the moth solution is usually about 20 to 50 C. It is preferably 25 to 4 (rc. The immersion time is usually about ~ sec. It is in the range of 2 〇 to 240 seconds. 曰 As for the dichroic dye, dyes such as azo, sage, and antraquinone can be exemplified. These dyes can be used as mixed dyes and the like. A dye such as ruthenium, for example, is disclosed in Japanese Laid-Open Patent Publication No. Hei No. 54-76171. The parent process is a process in which a film is impregnated with a solution containing boric acid or borax: and the process can be carried out by a stretching process. _ is divided into work or multi-person, and improves the durability and stability of longer films. In the embodiment, the case where the cross-linking process is carried out in two stages is described as an example. If the cross-linking process is divided into two times, the first cross-linking process can be carried out in the dyed towel. The degree of cross-linking, therefore: the strong inhibition of stretching, so high polarizing can be used to manufacture a polarizer of I. 15 12713⁄4 pif.doc The first cross-linking process is by impregnation with a cross-linking agent. The solution is carried out in such a manner that a certain degree of crosslinking can be carried out in the film. The treatment temperature of the second crosslinking process is preferably ~ 50 ° C in terms of the degree of crosslinking, preferably It is 25 to 451. The processing time is usually 1 〇 to 3 〇〇 seconds, preferably about 20 to 240 seconds. Preferably, the processing temperature of the second crosslinking process is higher than that of the second crosslinking process. The treatment temperature of the second crosslinking process is preferably from 50 to 80 ° C, more preferably from 55 to 70 ° C, in view of the improvement of the degree of polarization. When the treatment temperature is less than 50t, sometimes the film may not have sufficient transmittance to be polarized. Further, if the swelling of the film is insufficient, the film is stretched at a high rate of 5 times or more, and the film may be easily broken. On the other hand, when the entanglement = more than 80 °C, the film will be excessively swollen, and after stretching, tensile stone = crack may appear. The processing time is usually 10 to 8 seconds, preferably about 3 to (10) seconds. Moreover, if the processing temperature of the second crosslinking process is higher than that of the i-th cross-linking, the temperature is not particularly limited, and it is preferably higher than the processing temperature step, and more preferably higher than the pit. 'The second cross-linking process can also be combined with the film in this case, the better county 丨; private from your * r at the mouth and only know 〇 #右之方% t 伸面面秘 state 5~7 = If the skin is at a rate of 5.5 to 65 that is less than 5 times the initial state, then sometimes the total stretch is doubled, and when the total stretch is only a sufficient degree of polarization. Stretching causes the stage to break. & 7 «情科' will be pulled

1271222 18444pif.doc Acid to hydrazine: ! Well known, hobby, or combination: The above crosslinking agent can be used in the dissolution of the solution, for example, water can be used. Further, the organic solvent is further dissolved. Two of the above-mentioned first and second cross-linking processes with common aqueous bathing properties are not particularly good, but generally better:::::: I such as: water) 100 f!% 'for 2 ~1〇% by mass range. It is better to adjust the concentration to more than 30% of the concentration of the stone and the dissolved concentration in the dish. For example, when the temperature of the aqueous solution is treated as a warm sound, the concentration of the aqueous solution of boric acid and the dissolved concentration of j3% are the same as the concentration of the acid water, which is equivalent to 3 G%, preferably adjusted to be 3.9%. If the concentration of the water-soluble solution is within the above range, the swelling degree of the film can be adjusted, so it is more county. In order to set the shouting concentration of the second cross-linking process to be higher than that of the second cross-linking process, it is preferable to make the brother 2 cross-linking process two-temperature. In an aqueous solution of boric acid or the like, iodine ions may be contained by calcium iodide. An aqueous solution of boric acid containing calcium iodide or the like can obtain a polarizer having less coloration, and a polarizer having a substantially uniform absorbance in a substantially full-wavelength region of visible light, that is, a so-called neutral gray polarizer can be obtained. - After the above second crosslinking process, the film can be subjected to a water washing treatment and a drying treatment according to a conventional method and by pure water. Alternatively, iodide ion soaking I271^p, doc can be performed. Thereby, precipitation of boric acid or the like is prevented, so that a polarizer having a good appearance can be obtained. In the iodide ion soaking treatment, for example, an aqueous solution containing iodide ions by calcium iodide or the like is used. Preferably, the calcium iodide concentration is from about 0.5 to about 10% by weight, more preferably from 1 to 8% by weight. In the iodide ion soaking treatment, the temperature of the aqueous solution is usually about 15 to 6 〇, which is relatively rare. The dipping time is usually about 12 seconds, which is in the range of ~ second. 〇 As described above, according to the present embodiment, the optical film is not immersed in a solution in a loose state, and the film is softened by excessive swelling of +1. As a result, a polarizer was produced in the case where _ = stopper was broken. In the present invention, in addition to the second cross-linking process, the f-crosslinking process, and the like, the dipping object is in a state where the dye film is not stretched and is not slackened. Into the stretch tl, can also be thin stretch and other processes, or do not have to separate the color, cross-linking, the scales of each f is not __. _ Implementation. Also, the extension process can be carried out more than twice. In addition to the % of the machine, the pull (the optical film manufacturing device) is in the initial stage of the collapse. Figure 1 1 (a) shows the state after the film is erected, Figure 一h^明图, Figure 1-1 (4) shows the U-r film immersion in the film, and the shape of the shell The optical film manufacturing apparatus 18 pif.doc of the present embodiment is an arrow paste uploading object including an exit side conveying roller 2, a cymbal 5, a guiding member 6, a person-specific delivery 3, a bath 4, and a support structure. 3 = 拉伸 (4) is applied with a tensile force in the direction, so that the bath 4 in the parallel conveying direction is in a state of being relatively thin and thin. Large bath trough. In the bath 4, it is also a solution 8 of a dose of 10 m or more in the direction of the person. 3 - The coloring material or the cross-linking support member 5, in the Luochi 4 μ & 丨丄 7 丨丄 member 5, has the freedom to support the thin 臈1. Further, the support member 5 can be supported by the bearings (8) and 1 (seven), and the support member 5 can be placed thereon, and the supporting member 5 can be borrowed when the film i is immersed in the bath 4 as shown in Fig. 1. It is not a hindrance that the guiding members 6 are respectively disposed on the support member 5 at the side of the outlet, and the mouth is set to 1 and the guide member 6 has a free; ==, and the V member 6 is Figure 1 (b), 1 (c) is moved upwards, thereby adjusting the two-way: separation in the bath 4 of the film. Back again, the clothing is pressed into the member 7, and is placed on the holding film. 1 and the position opposite to the support member 5. Further, the press-in member 7 has a freely rotatable and further as shown in Fig. 1 (w, the push-in member 7 can be in the upper 7 to the second =. When the bathtub 4 is broken, the film 丨 is pressed. To the private movement, the support member 5, the guiding member 6, or the pressing member 7 19 1271^2P, d〇c is known, and there is no particular limitation. In addition, the φ la: illusion can be a jackup method, and the oil pressure is not limited to the above, the product, the bow guide member 6 and the push-in member 7 and support the tree-turning type. Λ, ::Do not limit 'if the surface of the film 2 is in contact with the film 2: By making these shapes, the shape of the film, the fan shape, etc. can be reduced. The member 6 is pressed into the member 7 The human support member 5 and the guide 1 can be smoothly conveyed. ^ The frictional resistance of the ^, and the thinness is followed by the description of the present embodiment. First, as shown in Fig. i (the operation of the device is fed to the roller 2 and the population side) The conveying roller H_1 is placed on the side of the outlet side 4, and the support member 5 is placed in the solution 8 of the bath film 1 which is not immersed in the bath 4, and is in a state of being tightened. The film member 7 in the state in which it is not loose is pressed to be inside and tightened. Thereby, the member 5 that moves below the bath 2 to the bath 4 is also moved downward to the bath 4 = part 1 At this time, the support structure is convex and pressed, so that it is immersed in the solution 8 and the day 11 is formed as air accumulation on the lower side. As a result, the film can be made two real = the lower side does not shape and then the lower side becomes The convex thin shell is in the solution 8. After the liquid 8 is used, the guiding member 6 is lowered at a speed at which the human-end is started to be immersed in the melt or below, and the descending speed is the same to cause the member 6 to be drawn. Further, respectively, pif.doc 1271222 18444r is lowered to a position lower than the support member 5. The pieces 6 are at the same height. As a result, the "solid guide member 5 and the guide 椹=: set, in the up and down direction of the bath 4, the relative part 5 and the guide member 6 are fulcrums and the upper and lower sides are made. The working surface degree can be soaked for a long time. In addition, the scorpion pancreas 1 can be immersed in the widest extent within the bath 4. Further, the film 1 is impregnated and becomes convex at the lower side = cavity end After the first immersion in the solution 8, the lower side of the front member 6 of the supporting member 5 1 is made, and the pressing member 7 is placed at the guiding guide structure, whereby the jade of the film 1 can be made higher than the bath. 4 = not bent more (refer to Figure 2 (a)). Further, as shown in Fig. 2, the direction holding member 5 and the push-in member 7 are moved to the more guide member 6: the working height of the film 1 can be guided lower in the bath 4 and pressed into the member 7. k 丨 ό ό 通 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The optical film of this embodiment is not limited. The film i is pre-arranged on the exit side to transfer the sacred Kun 2 and the immersion into the bath 4, so that the support member 5, the bow guide member 6, and the human member can be made without the bath* In the following, the "filming of only the film 1" is carried out, so that the workability and the apparatus for manufacturing the film of the embodiment can be realized, and the process of '^又' can be used. , the color parent association, etc., before the manual work such as guiding the egg or 1 21 I2712^pifd〇c, the case where the support member 5 is provided in the above-mentioned optical film manufacturing apparatus, but the present invention does not In addition to this configuration, a plurality of support members may be provided. For example, the description of the manufacturing apparatus for the optical film provided with the rain support member 5 is as follows. 3(a) to 3(b) are diagrams schematically showing an apparatus for manufacturing another optical film of the embodiment, and Fig. 3(a) shows a state after the film is erected, and Fig. 3(b) and Fig. 3 ( c) shows the process of stretching the film. Further, Fig. 4 (a) and Fig. 4 (b) also show other processes for stretching the film. First, as shown in Fig. 3 (a), the film 1 is placed between the exit side transfer roller 2 and the inlet side transfer roller 3. At this time, the film bundle is supported by the two support members 5 located outside the bath 4. The impregnation of the film 1 is carried out as follows, and the film 1 which is in a state of being stretched and not slack is pressed against the surface of the member 7 so as to be lowered to the inside of the bath 4, whereby the film 1 and the lower side are convex. At this time, the two support members 5 are also lowered. The impregnation of the film 1, for example, as shown in Fig. 3(b), the two support members 5 are located relatively higher than the guiding member 6 and the pressing member 7, and the guiding member 6 and the pressing member 7 are located at the same height. . Thereby, the film i is formed with the working height of the supporting member 5, the guiding member 6, and the pressing member 7 as fulcrums and staggered in the upper and lower directions, so that the impregnation can be performed for a long time. Further, as shown in FIG. 3(c), the position of the two guiding members 6 can be made horizontal between the lowermost supporting member 5 and the uppermost pressing member 7, so that it can be guided. The member 6 is impregnated and stretched in a manner that the member 6 is a fulcrum. Further, as shown in FIG. 4(a), the pressing member 7 is located at the lowermost supporting member 5 and the uppermost guiding member 22 »if.doc 6 is passed through the material member 6 and the buckling manner. Dip and stretch film workers. Further, the member 7 is a fulcrum, and the support member 5 can be positioned at the lowermost position as shown in Fig. 4 (1), and also in the middle of the member 7, by bucking in a manner of buckling with the support member 526 and the uppermost press. Stretch the film i. The bow guide member 6 is a fulcrum (optical film and image display device), which is obtained by the above-mentioned manufacturing method, and is provided as a transparent method on at least one side thereof; A polarizing plate designed as a coating layer of a polymer. It is formed through a transparent layer or the like which forms a transparent protective layer. The transparent material to ί is preferably excellent in transparency or water-repellent use. As for the formation of the above-mentioned transparency = degree of thermal stability, for example, polyethylene terephthalate or polycondensation, ethylene glycol, polymer, cellulose diacetate or triacetic acid, "s. Poly 系 夂 四 四 四 四 四 四 四 四 四 四 四 四 四 四 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 For example, a polymer, a vinyl chloride: ^ ^ ' _ polymer, a polymethine polymer, a mixture of the above polymers, or a mixture of the above polymers may also be used to form the above-mentioned day or 23 1271 ^ 8 4 4 p P if. doc is exemplified. On the surface of the above-mentioned coating layer which is not in contact with the polarizer of the above transparent protective film, it is also possible to carry out a hard film shoulder, /, and to prevent persuasion, or spread or even anti-glare For the purpose = anti-reflection treatment 'hard boat treatment is on the surface of the polarizer to prevent it from being applied, and can pass, for example, a B-based system, a stone stalker =, and a poor: =: film or smooth characteristics, etc. Excellent hardened leather two =: The anti-reflection film of the standard is realized, and the anti-c is known as the layer For the purpose of the purpose of the treatment. 'Processing 疋 to prevent the adjacent and anti-glare treatment is to prevent the surface of the polarizing plate, the polarizing plate through the visibility of J, etc., can be implemented in 5 2 or embossing The roughening method of the method: the microparticles are provided on the surface of the protective film of the shell, and the particles contained in the formation of the fine uneven structure of the surface are also used to have an average particle diameter of 0.5 to 50 _ ::, such as titanium, zirconia, tin oxide, indium oxide, ί, such as organic fine particles, such as organic fine particles, the surface of the fine concavo-convex structure can be reset. The anti-glare layer can be used to diffuse polarized light. The plate transmits 24 i27im through the light, 〇c a diffusion layer with a large viewing angle, etc. (the viewing angle expansion function, etc.) 2. The diffusion r anti-glare layer is transparent to the protection layer and can also be used as a separate light. In the subsequent treatment of the polarizer and the transparent protective film, the adhesive is used, the ethylene-based latex = water two = 糸 = test agent, usually used as an adhesive containing an aqueous solution, usually containing 〇 5 〜 60 reset % solid content. · Membrane fish' The transparent protective film is bonded by using the above-mentioned adhesive. The application of the adhesive can be carried out in a transparent protective film and both. After bonding, an adhesive layer of: = J dry layer is applied. The transparent guarantee (10) can be made up of a simple scale, which is usually about 0.05 to 5 mm. The layer is the same as the R optical film, and the optical film is laminated on the actual residual layer and other optical layers. _1, two-pass system, but can be used, for example, to the right special limit. ^, two or more layers are sometimes used to form reflectors or core plates, phase difference plates (including HiU/4 wave plates), visual compensation An optical layer such as a liquid crystal display device such as a film. In particular, it is preferable that the polarizing plate of the present invention and the anti-pure or semi-transmissive reflector have a semi-transparent polarizing plate. Further, a polarizing plate or a circular polarizing plate having a phase difference plate is laminated thereon, and a wide (four) wire having a viewing angle compensation film is laminated on the polarizing plate, or a brightness enhancement film is laminated on the polarizing plate 25 1271222. 18444 pif.doc Polarized plate. The reflective polarizing plate is provided on the polarizing plate with reflection of incident light, and is therefore easy to illuminate: etc., and has a light source that can be omitted from the backlight, and is easy to be thinned. The advantages of etc. The reflected light may be attached to the early surface of the offset = the surface of the polarized layer, or the like, or the reflective layer of the metal or the like, as appropriate, and the specific example of the reflective type may be transparent. One side of the protective film, such as a reflective layer. Further, a reflective layer having a fine uneven structure may be listed. The above-mentioned fine dipole or flicker is diffusely reflected! The incident light is diffused to prevent the wood from suppressing the advantages of light and dark spots. In addition, it also contains an iltir film, which has the advantages of being able to illuminate the human light and to reflect the unevenness of the light and dark. The base plate of the fine concavo-convex structure, which reflects the transmissive layer structure, and the base plate, such as the base two-port Hit, the ion-electric money method, and the transparent protective layer, may be directly applied to the transparent protective film instead of the polarizing plate. Therefore: = ΓΤ 透明 transparent film on the appropriate film is provided with a reflective layer. In addition, the 'reflective layer usually contains metal, so the reverse 26 pif.doc = face hunting covered by the through film or polarizing plate In the state of the state = because it can prevent the oxidation of the limbs from casting low, into (4) to avoid the long-term persistence of the initial reflectivity, or the surface, etc., so the _ want to ^ Bao Yun need to be attached separately a semi-transmissive polarizing plate which is formed in the above-mentioned medium and which is made into a transflective mirror such as a half mirror which is transmitted through, and is usually provided in a liquid crystal display device or the like in a liquid crystal display device. Let the moon = the incident light reflect and display the image, : No, the environment can also save the backlight and other light: Yu Ming: == inside the code to get two: = light, the ellipsic polarization or the circular polarization Polarized or circularly polarized light direction 4: First: use =^ for Line polarized light is changed to circular polarized light, or the eye-shaped plate temple is especially used as a difference plate, and a so-called 1/4 wave ♦ 柘 y 2 is used to change the phase plate (also called λ/2 plate) with linear polarization. Pass ^ is also known as λ / 4 board). In the case of 1/2 wave. The eccentric polarizing plate used to change the linear polarization is compensated (the color of the liquid crystal display device is super-twisted (4) (sm) ~ the color produced by the pound (blue or pif.doc 1271222 ΐδ^κΡφ yellow), and In the case of storing the coloring black-and-white display, etc., and then making a two-dimensional refractive index, it is possible to compensate (prevent) the coloring caused by the tendency to observe the surface of the liquid crystal display device, and the polarizing plate is preferably adjusted, for example. The image becomes a reflective liquid crystal display of color display: when it is used in the case of image color tone, it also has an anti-reflection = function. As for the specific example of the above-mentioned difference plate, the scale may include acid vinegar and polyethylene. Alcohol, polystyrene, polymethyl methacrylate, poly:: or other suitable polymer for poly riding, poly-polymerization, poly-polymerization, or polyhedral film or liquid crystal polymerization The object = the boat, the thin ruthenium support liquid, the alignment layer of the compound, etc. The phase difference plate can be used for the purpose of compensating for compensation such as coloring or viewing angle of various wavelength plates or liquid crystal layers. Appropriate use purpose ^ poor In addition, the elliptically polarizing plate or the reflective elliptically polarizing plate may be a combination of a polarizing plate or a reflective partial plate and a phase difference plate as appropriate. ^ A polarizing plate or the like, a combination of a (reflective) polarizing plate and a phase difference plate, which is equal to the manufacturing process of the liquid crystal display device, and sequentially layered into a layer of _ into a 'but as above The board and other academics have the advantage of being excellent in the manufacturing efficiency of the mosquito-like display device, etc. The night-view supplement (4) film is used to make the film slightly tilted rather than perpendicular to the surface. When the liquid crystal display shows the surface of the cracked surface (4), ^ is relatively clearly visible and expands the angle of view _. to (4) 视^28 if.doc 1271222 I8444p uses a phase difference plate, a film, which is usually in the plane direction. On the other hand, in the direction of the plane, the amount of polycondensation is used to extend the film, or the film in the direction of the plane is in the direction of the degree of polymerization of the upper two ships. On the axis and also Stretching a polymer that is thicker than a slanted alignment film, or causing the (four) force of the scented T towel to be heated and shrinked, or by stretching or sizing Material material aggregation. Phase difference: the change of the visual angle of the phase difference of the polymer described in the difference plate. According to the realization of better visual sound, the film is made of triethyl cellulose-based cellulose; holding ==, preferably, the layer, especially the liquid crystal polymer containing disc-shaped liquid crystal, has an anisotropy (1) —^ The crystal plate has a polarizing plate and a polarizing plate for the brightness-enhancing film, which is used on the inner side of the liquid TL piece. —+ 夂通吊汉上液: It is shown by liquid crystal display & When the following characteristic light is used, the polarized light in the super-reflective direction is reflected, and other light is transmitted, so that the polarizing plate which is thinned by the thin film and the polarizing plate is formed, and the light from the light source such as the backlight is incident. Transmitted light in a specific polarization state, and the above specific polarization state Light outside the reflection can not be transmitted through. The brightness is increased by the light reflected on the film surface, and the reflection layer provided on the rear side is reversed to re-enter the brightness enhancement film, and a part or all of the light is made to be a specific light. The brightness of the liquid crystal display or the like can be increased by increasing the amount of light which is hard to absorb by increasing the light intensity of the film by the transmission brightness, thereby increasing the light amount of the liquid crystal display or the like. In other words, when light is incident from the inner polarizer of the liquid crystal element without using a film m light having an increased brightness, light having a polarization direction that does not coincide with the polarization axis of the polarizer is absorbed by the polarizer. Therefore, it will not pass through the polarizer. That is, although the characteristics of the polarizer used are different: roughly ===Optical absorption ‘this portion makes it available for the liquid crystal image to be reduced first, resulting in darkening of the image. The brightness is increased, and the light is absorbed, and the light having the polarization direction is incident on the polarizer, and the light is incident on the brightness enhancement film =, and then the light is reflected and inverted only between the two. The polarization of the polarizer in the polarizing direction is increased by the brightness of the polarizer = the supply of the polarizer. Therefore, the light such as the backlight can be effectively used in the image display of the heart-shaped device, so that the face can be bright. Acoustic thinness = 2, improved film ' For example, it is possible to use as many dielectrics as possible: to make a specific partial layer... flat, and the spring is transmitted through polarized light and the other light is reflected. 30 1271 1271

Pif.doc ^ supports the aligning film of the cholesteric liquid crystal polymer or the eclipse layer on the thin lining material. It has the characteristics of reflecting the left-handed or right-handed circular light and the other light will pass through. Therefore, it is better to suppress the absorption loss of the eccentricity (10) by making the linear deviation of the specific polarization axis = in the film by making the light beam aligns to the eccentricity. And make it _5 through the f $ aspect 'such as the cholesteric liquid crystal layer to cast a circular polarization to improve the film' can directly make it two, according to the inhibition of absorption loss, through the phase 2 polarized linear polarization It is incident on the polarizing plate. In addition, the light can be borrowed. The 1⁄4 wavelength plate is used as the phase difference plate to convert the circularly polarized light into a straight line ^ in the visible light area, the wider wavelength can be obtained by the wave...= A phase difference layer of a difference characteristic, for example, a disk which functions as a wavelength plate having other phase difference acoustic crystals is obtained in a phase which is suitable for the weight. Therefore, the phase difference plate disposed between the films may contain 1 Layer or 2 layers with = =, liquid crystal layer, the combination of different lengths of the domain Two or three layers are overlapped to obtain a wider wave _ _ _ _ structure such as a visible ship field, which is based on a wider range of wavelengths. The plate may have a 偏31 mnzi if. doc layer having a polarizing plate and two or more optical layers, as in the above-described polarizing-separating polarizing plate. Therefore, / is a combination of the above-mentioned reflective polarizing plate or semi-transmissive type. The polarizing plate and the reflective elliptically polarizing plate or the semi-transmissive elliptically polarizing plate, etc., which are opposite to the polarizing plate, may be laminated in the manufacturing process of the display device, etc. When it is made of an optical film, it is excellent in quality stability or group work, and it can improve the liquid crystal display device, etc. It is possible to make a suitable layer (4) in the laminate. The polarizing plate or other optical film is connected to the substrate as a target phase difference characteristic, etc., and the other components such as a liquid crystal element, such as a liquid crystal element, are disposed, and the polarizing plate is laminated on at least one layer. sticky Layer τ system or rubber system: it, 酉 、, 聚 胺 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The liquid crystal display adhesive layer which is excellent in quality and durability due to the formation of the optical property-reducing device, and the surface layer is preferably an adhesive layer having a low moisture absorption rate and excellent heat resistance, and may be contained in, for example, added. Natural or synthetic tree 32 27 pif.doc Metal powder, other lying, or the adhesion of lang fibers, glass beads, preventive agents, etc., special fillers or pigments, colorants, oxidized light diffusing! It may also be an additive, or may be an adhesive layer containing microparticles and having a single side or both sides of a square plate, and may be exemplified by a suitable one or the like. For example, it may be prepared by using a terpene-containing polymer or a pure substance. Or, in the solvent of the mixture, about 10 to 40% by weight of the base / /, and 5 substances are dissolved or dispersed == the manner in which it is appropriately spread on the plate or the optical film by a casting method or a coating method Or according to the light of the upper one And moving and attaching to the polarizing plate or the light plate or the light 'film 3$=3353 layer: when the bias can also be used as a polarizing plate or an optical film, the towering, ^, ^ sub-degree can be The purpose of use or the force of the application is specific and appropriate, in general, 〖μιη, μιη, especially good is 1〇~1〇〇μιη. J疋) 200 Temporarily mask the spacer for the purpose of contamination of the exposed surface of the adhesive layer for practical use. Thereby, the processing state of 0 cases prevents contact with the adhesive layer. As for the spacer, in addition to the above-mentioned conditions, it is possible to use a suitable thin film such as a plastic film, a rubber sheet, a paper, a cloth, a cloth, a mesh, a foamed sheet or a metal falling, and the like. Shishi or long-chain base, fluorine or vulcanization, etc. when peeling 33 12712; +pif.doc agent for coating treatment, etc. based on the previous appropriate. Further, in the present invention, in the polarizer or the transparent protective film or the optical film or the like for forming the above polarizing plate, in each layer of the adhesive layer or the like, by, for example, a salicylate compound or diphenyl A ketone-based compound, a benzoquinone-based compound, a cyanoacrylate-based compound, a nickel-salted salt-based compound, and the like, and a purple-absorbent-like material (4) having a purple-heart absorption energy, a polarizing plate or an optical body of the present invention The film can be preferably used for liquid crystal display devices, etc. The formation of the liquid crystal display device can be performed on a previous basis. That is, the liquid crystal display device can be assembled by appropriately assembling the liquid crystal cell 1 polarizing plate or the optical film. _f wants the lighting line and other components, Ya will be the person, the crane circuit towel #_成, in the present invention, in addition to the use of Shifa-day polarized money optical ❹, there is no mosquito, and can be液晶Based on the liquid crystal element ', any type such as tn type, stn type, and π type can be used. Also, a polarizing plate or a display device is disposed on one side or both sides of the liquid crystal element, or Used in lighting systems Suitable liquid crystal light reflecting plate or the like by the display device. When in this case, ϊϊϊ the present invention, "an optical film may be provided on one side or both sides of the liquid crystal element S. In the case of a two-sided or optical film on both sides, these may be the same or different. Further, when the liquid crystal display I is formed, the upper plate, the anti-glare layer, the anti-reflection film, and the protective plate are arranged such that the ribs, the light diffusing plate, the f-light, and the like are disposed at the normal position. 34 I27!^, doc Next, an electroluminescent device (organic EL display device) will be described. In general, in an organic EL display device, a transparent electrode organic light-emitting layer and a metal electrode are sequentially laminated on a transparent substrate to form an illuminant (organic electroluminescence). Here, the organic light-emitting layer is a laminate of various organic thin films, and it is known that, for example, a laminate layer containing a triphenylamine derivative or the like and a light-emitting layer containing a fluorescent organic solid such as ruthenium or the like, or such a light-emitting layer A laminate of an electron injecting layer containing an anthracene derivative or the like, or a combination of the hole implanting layer, the light emitting layer, and the electron injecting layer. + organic EL display device, by applying a voltage to the transparent electrode and the metal: electrode, a hole and an electron are implanted in the organic light-emitting layer, and the energy generated by the recombination of the hole and the electron will excite the fluorescent light The substance, and the principle of the emitted light when the fluorescent (4) is returned to the base state: the mechanism of the recombination of the cat's scorpion is the same as that of the bismuth, since then, the current With luminous intensity for applying electricity

Strong non-linearity. ^/;,L Another-side, for easy planting of electronics and raising the month. The cathode uses the work wheel seed hoe, and the door is especially efficient. It is important to use π to work with a small number of things.

Metal electrode such as Li. , Mg~Ag for hanging, - Organic EL display device constructed in this way. The thickness of the organic EL display device is about □ Onm. The luminescent layer is formed by a film that is extremely bound by left and right. For this reason, the organic light-emitting layer 35 I271?^if.doc f and the electrode _ can be used to transmit all of the light. As a result, when the surface is turned off, the surface of the substrate is irradiated by the transparent f-pole and the organic light is reflected by the gold electrode, and the light is reflected again toward the surface of the substrate, so that when viewed from the outside, the organic el The display surface of the display device looks like a mirror. The donor side 1 has a transparent electrode on the surface side of the organic light-emitting layer that emits light by applying electricity M and has gold on the inner side of the organic light-emitting layer.

^In the a-age device of the organic electroluminescent body, in the transparency of the difference plate and the polarizing plate, due to the effect of light from the external = reflected light, it has the effect of the polarization: ? The L method visually observes the effect of the mirror surface of the metal electrode. In particular, if the phase difference plate is formed by the (eight) wavelength plate and the angle between the polarizing plate and the phase difference is adjusted to π/4, the first direction can be completely shielded.

That is, it enters the mirror plate of the organic EL display device and transmits only the linearly polarized light component. The money will be elliptically polarized, especially for the direction of polarization of the phase-anti-synchronous plate and the phase difference plate, and it will be polarized. When the angle is π/4, the circularly polarized light will be transmitted through the transparent substrate, transparent to the metal electrode towel, and again transmitted through the surface _, the transparent film and the substrate, and will become straight in the phase difference plate again. Because of the linear line with the polarizing plate of the polarizing plate, the stomach, and the light line, it is impossible to transmit the polarized light 36 I271^, doc 22, . The mirror surface of the metal electrode can be completely shielded. [Examples] The description of the appropriate embodiment of the method of _, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The scope of the invention is not limited to the foregoing and is merely illustrative.寻(Example 1) From alkene = a polyvinyl alcohol film having a thickness of 2 Å and a thickness of 75 μm, and subjected to a broad film, a color, a first crosslink, a second crosslink, a stretch, and further, at 3 The longer film is dipped in the water, and the word is stretched to 3 times of the initial state (swelling process). Secondly, the dyeing solution is prepared by the transmittance of the polarizing plate as the final product of 43 5% = mode. Add 3% to 8% of the water in the water, and then add a high concentration iodine solution to prepare a dyeing solution. High concentration: the solution is water 4: _ 1G 〇: 2G: 丨 ratio Angle ^ = solution for adjusting the iodine concentration of the dye solution. The film is immersed in the dye solution, and then stretched to 4 times the initial state (dyeing process). Then, 4 wt of water is added in 30 ° C water. Preparing a first crosslinking solution with a boric acid of 2% and a calcium iodide of 2% by weight. The film is impregnated into the second crosslinking solution, and further stretched to 4.3 times the initial state (the third crosslinking) Process). Further, 4 wt% of boric acid and 2 wt% of iodide are added to 50 ° C water to prepare a second cross-linking solution. In the second crosslinking solution, the film is impregnated in a state of being stretched and not slack, and stretched (second crosslinking process). Further, 'in this case, private use' is used in the above embodiment. Light 37 127 is called - a unique manufacturing device (refer to Figure D. That is, the same as Figure Ua), the binding film is placed on the outlet side to convey the eccentric side to transmit light.

Support for support components, minus it is not (I) is not evil. Then, as shown in Fig. 1(b), the film is pressed into the member to make the film in the state of being stretched and not relaxed, and the film is formed into a convex shape on the lower side, and the surface is immersed in the second cross-section by the P surface. In solution. χ, the guide roller is lowered to a position lower than the support member at the same speed as the falling speed of the push-in. After the impregnation, the film was stretched to six times the initial state by the circumferential speed difference between the outlet (four) feed roller and the population side. The film after the second crosslinking process was immersed in 3 Å. 4% of the iodized calcium in the aqueous solution, and then stretched to 6 〇 5 times of the initial state / ('washing process). Thereafter, the film was taken out from a 4 wt% aqueous solution of calcium iodide, and dried for 3 minutes at 30 C (drying process). Thereby, the optical film of Example 1 was produced. (Example 2) In the second embodiment, the same procedure as in Example 1 was carried out except that the temperature of the second crosslinked liquid used in Example 1 was changed from 50 C to 60 °C. The optical film of Example 2. (Example 3) In the present Example 3, the boric acid concentration of the second crosslinking solution used in Example 1 was changed from 4 wt% to 8 wt%, and the temperature was changed from 50 ° C to 70 ° C. An optical film of this Example 3 was produced in the same manner as in Example 1 except for the above. (Example 4) 38 4pif.doc 1271222 18444pi In the present Example 4, the boronic acid concentration of the second crosslinking solution used in the Example was changed from 4 wt% to 10 wt%, and the temperature was changed from %. An optical film of Example 4 was produced in the same manner as in Example 1 except that c was changed to 80 °C. ' (Comparative example 1)

In the first comparative example, in the second cross-linking process, when the long film is placed between the transfer rolls, the long film is immersed in the bath to manually pass the guide through the bath. The film of Comparative Example 1 was prepared in the same manner as in Example 1 except that the film was immersed between the rolls. (Comparative Example 2) In Comparative Example 2, except that Comparative Example 1 was used. The optical film of Comparative Example 2 was prepared in the same manner as in Comparative Example 1 except that the temperature of the second liquid was changed from 50 C to 60 C. (Comparative Example 3) In Comparative Example 3, The boric acid concentration of the second crosslinking solution used by the household in the second crosslinking process of Comparative Example 1 was changed from 4 wt% to gwt%, and the temperature was changed from 5 (TC to 7 ° C, and compared with In the same manner as in Example 1, the optical film of Comparative Example 3 was produced. (Comparative Example 4) In Comparative Example 4, the boric acid concentration of the second crosslinking solution used in the second crosslinking process of Comparative Example 1 was used. The optical film of Comparative Example 4 was prepared in the same manner as in Comparative Example 1 except that the temperature was changed from 4% by weight to 10% by weight and the temperature was changed from 50 ° C to 80 ° C. 39 I271222, 〇c (Evaluation) The optical film prepared in each of the above examples and comparative examples was subjected to tensile cracking, that is, 10 times of optical film was produced, and the number of times of breaking of the optical film was counted, and the crack rate was calculated. The results are shown in Table i below.

[Table 1] ι 温度 temperature rc) rupture limit % Γ Example 1 50 0 Implementation ® 60 ..................... ...0 —·. Implementing your j” 70 20 Implementing 80 30 Comparative Example 1 50 One 80 i 卓 卓 60 60 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 .........................100 —... 80 100 It can be seen from Table 1 that after the optical film is formed under the same temperature conditions, Example 1~ 4 shows the value of the crack rate from 〇% to very low. On the other hand, in Comparative Example 1, the breaking rate was 8 〇〇/〇, and the production efficiency was extremely low. Further, in the six cases of 2 to 4, the breaking rate was 1%, so that an optical film could not be produced. Take this

The manufacturing method of the optical film has a significant anti-cutting order = an improvement in productivity and production efficiency.囷a) to Fig. 1(c) are diagrams schematically showing the present invention, Fig. 1(a) 2;:: ΐΐ2^(b) indicates the initial stage of film impregnation, Fig. 1' (: The table is not subjected to the state of impregnation and stretching. ... Pack 2: ((:= SU) ^®2(b) is an explanatory diagram showing other examples of impregnation and pulling 127 ^^. Fig. 3 (a) to Fig. 3 (4) are explanatory views schematically showing an apparatus for manufacturing another optical film of the present invention, Fig. 3 = ^, the state after erection, Fig. 3 (8) and Fig. 3 (7) film = stretching The process of the pancreas is shown in Fig. 4(a) and Fig. 4(b). FIG. 4(a) and FIG. 4(b) are diagrams schematically showing the above-mentioned optical film.

Stretch other processes. The material is pulled in. [Main component symbol description] 1 : Film 2: Outlet side conveying roller 3: Inlet conveying roller 4 : Bath 5 : Supporting member 6 : Guide member

7 : Press in the component 8 : solution 41

Claims (1)

X. Patent application scope: 1. A method for manufacturing an optical film, which is characterized by a step in the 苴β-liquid, in which the ruthenium film is immersed in a solution state, and is transmitted to a specific side. After the film is not in contact with the film, the film is stretched and not loosened. The film is immersed in the solution. Forgiveness, in the state of Z, such as the application of the special Wei Wei h bean in the upper 3 people such as, the heart of the amine production method, m疋 contains a hydrophilic polymer _ into the _. 3. The optical film described in item i of the scope of the patent application is in the above-mentioned - the transmission is linear. The method for producing an optical film according to the above-mentioned item 1 is used, and the use of 3 is used as the above-mentioned solution in the solution. The method for producing an optical film according to the first aspect of the invention, wherein the stretching is carried out in a state of being impregnated in the solution. 6. The method for producing an optical film according to claim 3, wherein the film is stretched in a solution to achieve an initial state of 5 to 7 times. The method for producing an optical film according to claim 1, wherein the film is stretched in an amount of from 3 to 5 times in an initial state before the film is immersed in the solution. 8. The method of producing an optical film according to claim 1, wherein the film is a polyvinyl alcohol film. 9. The method for producing an optical film according to claim 2, wherein the crosslinking agent is boric acid or cerium. 10. The method for producing an optical film according to the above aspect, wherein the method for producing the optical film described above is performed in a convex manner. The film is oriented downward, and the film is supported by the lower side of the lower side, and the second or second holding member supports the film from the lower side, and is made from the lower side. When the pressing member of the thin sheet i is placed on the upper side, the method is ashamed, and the above-mentioned pressing member presses the two: = square bath; when the solution is in the state, the film is impregnated. Below, the Asian scorpion is not loose in the middle of the Γ. Γ, 10 application of the film of the scope of the film of the film of the method of the 12th, 八一1上1 peach erection, in the above - between the transfer roller becomes eight sub = ^ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Between the rolls 'and the film is placed between the transfer rolls, the film; (3) the fork and the bath 'is set to immerse the film in the solution; to 43 71 ^, doc and component / It is a pressing member between the pair of conveying rollers, and when the film is immersed in the solution, the film is pressed down, and the film is immersed in a state of being stretched without being slack. 2, the manufacturing process of the optical crucible described in claim 14 of the patent application is taught, and the transfer roller is stretched by the film which is impregnated in the above-mentioned solution by the peripheral speed difference. . The manufacturing degree of the optical film described in item 14 of the patent scope is as described above - the transfer unit is provided with a working member for the working height of the film, and the working height is adjusted by the following The middle of the bath is guided by the above baths and moved to different locations. 〇X/, at least one of the above-mentioned supporting member or the pressing member, wherein the mask of the optical film of the above-mentioned claim 14 is in contact with the manufacturing device, or the member is _ The structure is immersed in the solution and the film is immersed in the solution ":; = state" and maintains the state of the state 5 to 7 times the range /. (10) In the reading of the table, _ stretched to the initial stage.