TW473619B - Method for producing an optical film chip and optical film chip intermediate - Google Patents

Abstract

A method for producing an optical film chip is provided which comprises the steps of (i) cutting an optical strip film into an optical film chip intermediate and (ii) cutting the optical film chip intermediate into a plurality of optical film chip, wherein the optical strip film is cut into the optical film chip intermediate having a shape of trapezoid so that the cutting is conducted along the first standard direction at a predetermined angle from an optic axis of the strip film as well as along the second standard direction perpendicular to the first standard direction. The optical film chip intermediate is also provided.

Description

473619 A7 B7 V. Description of the invention Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs [Technical Field of the Invention] The present invention relates to a method for manufacturing an optical thin film wafer suitable for a liquid crystal display device and an optical thin film wafer intermediate. [Prior art] · Generally, an optical film including a polarizing film or a phase film is used in, for example, a liquid crystal display device (hereinafter, referred to as L C D). The optical film must be incorporated into the L C D in a state where the optical axis is correctly aligned with the design of the L C D for which it is intended. Here, the optical axis refers to an absorption axis in the case of a polarizing film, and a retardation axis or a phase advancement axis in the case of a retardation film. For example, a polarizing film is a light source that vibrates in 360 degrees in all directions. Only the light that vibrates in a certain direction passes, and the light that vibrates in other directions blocks the light. In the example of using the polarizing film, the L C D system uses a combination of a polarizing film and molecules of a liquid crystal material to control the passage and blocking of light. In the LC CD where the liquid crystal molecules are distorted, when the color of the screen becomes black and white when no voltage is applied thereto, it is divided into standard black and standard white. The standard black color is shown in (a) of FIG. 5. For example, when the twist angle of the liquid crystal molecule 51 is 90 degrees, two polarizing films 5 2 a and 5 2 b are provided on both sides of the liquid crystal molecule 5 1. The direction of the absorption axis (hereinafter, the direction of this absorption axis of the polarizing film, and the direction of the retardation axis or the rough axis of the retardation film are described as the direction of the optical axis). The size of the paper for binding and binding is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) -4- 473619 A7 B7 5. The description of the invention. Therefore, after passing through the polarizing film 5 2 a at one end, the molecules along the liquid crystal are blocked by the other polarizing film 5 2 b. Therefore, the screen becomes black on the side. The twisted traveling light will polarize the thin film 5 2 b. In addition, the two light directions of the standard white liquid crystal molecules 51 are orthogonal. Due to the distortion of liquid crystal molecules 5 3 a. Therefore, it will become white. In this case, in the above case, it is necessary to make the color system on the side like two polarizing films 5 3 on the side. Therefore, as shown in (b) of the traveling light polarizing film, it is set at 5 3 b. After the polarizing film 5 3 a on one end is polarized along the line, it will pass through another polarizing film 3 b to form the screen side. Please read the precautions on the back first.

The Ministry of Economic Affairs, Central Bureau of Standards, Consumer Cooperative Co., Ltd. prints the polarized thin film. The optical film led by the liquid crystal optical film is used in the LCD. The twist direction is set. The axial direction must correspond to some optical films such as rectangles of liquid crystal molecules. Direction (direction of extension), tilted to a certain-specific angle 0. Only. Therefore, after the .., @, direction, the optical film facing the opposite direction at this time, the direction (the above formula breaks the above film 3 strip-shaped thin, optical film is shown in Figure 6, first manufactured into After the strip-shaped film (the first strip-shaped film 3 1), the first strip 31 is cut to form an optical film wafer and used in the L CD. The axial direction SD0 corresponds to the first strip-shaped film. For example, the direction of the film 31 is a rectangular extension direction. For the sake of facing the axial direction SD ^ to obtain an optical film wafer having an orientation, as shown in the same figure, first, the first strip-shaped film 3 1 is cut. Then, a second rectangular strip 2 is obtained as an intermediate of the optical film wafer. Then, after cutting this second film 32, a plurality of paper sheets having a desired size and shape are obtained. The Chinese paper standard (CNS) M specification (210X29? Mm) is applied. 5- Order 619619 Central Standard of the Ministry of Economic Affairs A7 ________B7_ printed by the Bureau ’s consumer cooperative. V. Description of the invention G) Optical film wafer (for example, rectangular optical film wafer). At this time, in order to obtain the rectangular second strip film 3 2 indicated by Al, B 1, Cl, D1 in the figure, the first strip film 3 1 except for the first strip film 3 1 The rectangular direction is cut (divided into two parts), and is cut to a predetermined length along a direction perpendicular to the rectangular direction (hereinafter, described as a narrow direction). At the same time, both ends of the first strip-shaped film 31 in the narrow direction are cut along the rectangular direction of the first strip-shaped film 31 in order to consolidate the properties of the obtained optical film wafer. Break into a predetermined width. For example, in the case where the second strip film 3 2 uses 1 2 00 mm and the angle multiplier 11 (see FIG. 7) (however, the effective cutting size of the cutting blade is 1 1 4 0 mm) When the effective width of the first strip-shaped film 31 (the usable width in the narrow direction of the first strip-shaped film 31) is 100 mm, for example, it can be cut into lAiBil (that is, between A1B1 The meaning of length is the same below) = I CiDi | = 500mm. | A i C i | = | B! D i | = 1 mm. Next, in order to obtain the optical thin film wafer, the second strip-shaped film 32, as shown in FIG. 7, is mounted on the loading platform 1 1 and along the opposite axis direction SD0, and has a specific direction. When the first reference direction S DiT is cut to a predetermined width, the second reference direction 302 perpendicular to the first reference direction SDi is cut to a predetermined width. As a result, you can get the paper size of the first reference paper in parallel to the Chinese National Standard (CNS) A4 specification (210X297 mm) · 6---- ^ ------- install-(Please read the back first Note for re-filling | ^ page) Order V. Description of the invention 4) Opposite sides to one of SD i. For example, a rectangular optical film wafer (rectangular film) formed on one of the opposite sides parallel to the second reference direction SD2. Here, each side of the second strip-shaped film 32 and the axial direction SD will be described. The first reference direction SD: The f-degree of the second reference direction 30 and the second reference direction 30 lies in the first strip film 3 1, and the axial direction SD0 is a rectangular direction with the first strip film 31. Parallel. At right angles to the narrow direction. Therefore, the side AiC: and the side BiD! Of the second strip film 32 are parallel to the axial direction SD, and the side AxB: and the side CiD! Are perpendicular to the axial direction SD0. Furthermore, when the axial direction S Do is oriented toward the first reference direction S D and is inclined at an angle of 0 degrees, the sides A i C: and B i D i form only an angle of 0 toward the first reference direction. Therefore, in order to cut the second strip-shaped film 32, when the second strip-shaped film 32 is loaded on the stage 11, the orientation of the second strip-shaped film 32 is not shown in the figure. The cutting blade of the cutting device is formed so that the first reference direction SDi or the second reference direction SD2 is parallel to the first reference direction SDi or the second reference direction SD2, and the angle β of each side of the second strip-shaped film 32 is tilted and loaded. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Therefore, if the second strip-shaped film 3 2 of the above size is loaded on the above-mentioned 12 mm rectangular loading platform 1 1 and cut off, if 1 When two overlapping optical film wafer intermediate bodies (second strip film) can be cut at a time, for example, a single cutting process (using a single cutting process for the optical load on the carriage 11) The thin film wafer intermediate is cut along the i-th reference direction s D 1 to a predetermined width and along the second reference. This paper size applies Chinese National Standard (CNS) A4 (210X 297 mm) 473619 A7 ____B7 V. Description of the invention (operation of cutting S2 in the direction S D2 to a predetermined width) to form a second strip-shaped film capable of cutting 50 mm × 1000 × 2 (piece) = 1.0 mm

3 2. However, after the first strip-shaped film 31 is cut along the rectangular direction and narrow direction of the first strip-shaped film 31, once the second strip-shaped film 32 is obtained in a rectangular shape, 2 Strip-shaped film 3 2 When manufacturing a rectangular film 33 of a desired size (Method 1), as shown in FIG. 7, a rectangular film of a predetermined size 3 can not be formed. Part), all edges of the outer peripheral portion of the second band-shaped film 32 are jagged due to the θ angle described above. For this reason, waste of the end material 34 is formed. For this reason, how to reduce the end material 34 of the above-mentioned optical film, etc., and order the manufacturing method of the optical thin film wafer to improve the efficiency of the cut surface is a very urgent issue. Therefore, the present inventor has proposed a manufacturing method for improving the efficiency of the above-mentioned cut surface of the optical thin film wafer, that is, after cutting the first strip film, it is printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs and obtained as an optical thin film wafer A method of manufacturing an optical film of a desired size and shape from the second strip-shaped film having a parallelogram shape in the intermediate body, from the second strip-shaped film (method 2). In this case, as shown in FIG. 8, first, the first strip-shaped film 41 is cut (divided into two parts) along the rectangular direction (axial direction SD) of the first strip-shaped film 41, In addition, after cutting to a predetermined width along the first reference direction 5 D facing the above-mentioned axial direction S DQ and having a certain directivity, the parallel-axis direction SD in the figure is created. One pair of opposite sides A2C2; B2D2, and the i-th reference direction parallel to this paper standard General Chinese National Standard (CNS) A4 specification (210X 297 mm) -8-473619 A7! -------- B7 V. Description of the invention $) A second parallel strip-shaped film 4 2 formed by A 2 B 2; C 2 D 2 of one pair of SD 1 opposite sides. In addition, in general, in order to make the performance of the optical film wafer obtained at both ends of the rectangular direction of the first strip-shaped film 41 consistent with each other, follow the rectangular direction of the first strip-shaped film 41 toward Cut in a narrow direction to a certain width. When the second strip film 4 2 is used in the above-mentioned 12 Omm right-angle loading platform 11 (however, the effective length that can be cut by a cutter is 1 1 4 0 mm) 'As long as the first strip film If the effective width of 41 (the usable width in the narrow direction of the first strip film 41) is 1000 mm, it can be cut into, for example, | A 2 C 2 丨 = | B2D2 | = 6.5 0mm, The distance between the side A2B2 and the side C2D2 is 460 mm, and the distance between the side A2C2 and the side B2D2 is 560 mm. < A2C2D2 (the angle formed by edges A2C2 and D2) and < A2B2D2 (the angle formed by edges A2B2 and B2D2) ', that is, 0 is cut to 45 degrees. Printed by the Central Government Department of the Ministry of Economic Affairs and the Consumer Consumption Cooperative. Next, the second strip-shaped film 4 2 is mounted on the loading platform 1 1 as shown in FIG. 9 in order to obtain an optical film wafer. While the reference direction SDi is cut to a predetermined width, the reference direction SDi is cut to a predetermined width along a second reference direction 302 that is perpendicular to the first reference direction SDi. As a result, the opposite sides of one pair of parallel first reference directions S Di can be obtained. For example, a rectangular optical film wafer (rectangular film 4 3) formed by the pair of opposite sides parallel to the second reference direction s 〇2. Here, each side of the second strip-shaped film 42 will be described. Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) 7〇 ~. 473619 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention <) SD〇, the first reference direction SDi and the first The relationship between 2 reference directions SD2. In the first strip-shaped film 41, the axial direction SD0 is parallel to the rectangular direction of the first strip-shaped film 41. Therefore, A2C2 and B2D.2 of the second strip-shaped film 42 are parallel to the axial direction S Do. At the same time, the sides A2B2 and C2D2 which are parallel to the reference direction SD! Form an oblique β angle with respect to the axial direction S D6. Furthermore, from the argument that the second reference direction S D2 and the first reference direction S Di form a right angle, a vertical side A2B2 and a side C2D2 are formed. Therefore, in order to cut the second strip-shaped film 42, when the second film 42 is loaded on the loading table 11, the side A2B2 and the side C2D2 are loaded in parallel toward the cutting blade to be formed. The first reference direction SD i is oriented parallel to a cutting blade of a cutting device (not shown). At the same time, the side A2B2 and the side C2D2 are vertically loaded toward the cutting blade to make the second reference direction SD 2 parallel to the cutting blade. As shown in FIG. 9, when the above-mentioned method 2 is used, in the surrounding portion of the second strip film 4 2, the end material 4 4 of the rectangular film 4 3 of a predetermined size cannot be obtained (the mesh shape in the figure). Part) Only the two opposite sides (side AsC2 'BzD2) will be affected by the angle Θ described above and will be jagged. Therefore, the method 2 described above is less wasteful than the method 1 in which the end material 32 is generated on all sides of the peripheral portion of the second band-shaped film 32. Although the above method 2 wastes less end material than the method 1, the Chinese national standard (CNS) A4 specification (210X297 mm) is applied to this paper size. -10- IJ ------- installation—— (please Please read the notes on the back first and then this page) '11 Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 473619 A7 ___B7 V. Description of the invention <) The second strip film 3 2 will still produce end materials on both sides 4 4 and so on, are not very ideal methods. Furthermore, "in the case of the above method 2, when the second strip-shaped film 4 2 of the above-mentioned size is loaded on the above-mentioned right-angled loading platform 1 1 of 120 mm, and it is cut off" If the optical film crystal gold sheet intermediate body (second strip film 4 2) is superimposed, it can be formed on the aforementioned stage 1 1 to load the second strip film 4 2.2, and only one processing operation can cut The second strip film 4 2 of 500mm / 460mx4 (piece) = 0.92 m2 was broken. At the same time, as a result of further review by the proponent of the present invention, it was found that the above-mentioned methods 1 and 2 have the following problems. That is, any of the above-mentioned methods 1 and 2 is to cut the second strip-shaped film 32 or the second strip-shaped film 4 2 to obtain a rectangular film 3 3 or a rectangular film 43. From which position, it is most effective to cut the film. To improve the efficiency of the cutting plane, or after responding to the angle Θ or the size of the rectangular thin film 3 3, 4 3, etc., each time a simulated cut is performed by, for example, a computer, and based on the result, a reference position for starting the cut is set. Therefore, it cannot be said that the operation efficiency of the above-mentioned methods 1 and 2 will be good. At the same time, when the second strip film 32, 42 of either the second strip film 32 or the second strip film 4 2 produced by the above-mentioned method 1 or method 2 is cut, or when these are bundled, At the time of shipment, a problem occurred that it was easy to mix the front and back sides. In this way, when the front and back sides of the second strip film 3 2, 4 2 are adjusted relative to each other 'because the axial direction is reversed', the rectangular film obtained from the second strip film 3 2 '42 is used. China National Standard (CNS) A4 specification (21 〇X 297 mm) -11-(Please read the precautions on the back and then this page)

1T 473619 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the Invention 0) 33, 43 For example, LCDs may not function properly and display problems. Therefore, in order to prevent the front and back sides of the second strip-shaped films 32 and 42 from being mixed together, it is necessary to pay careful attention to and confirm the front and back sides, which also causes the problem of lowering workability. At the same time, when the two strip-shaped films 3 2 and 4 2 are packed, as shown in FIG. 10 and FIG. 1, at the center of the container 21 formed by a cardboard box having a predetermined size, the second tape After the front-side films 3 2 and 4 2 are made to face up, for example, they are separated and stacked into a plurality of sections by a partition not shown in the figure. Further, at the end side in the container 21, there is provided a space (not shown) for preventing these optical films from coming into contact with the container 21 or moving. However, in the case where the second strip film 3 2, 42 obtained by the above method is packed by the above methods 1 and 2, the center of gravity is only 1 point (the midpoint of the diagonal line of the intermediate of the optical film wafer). Naturally, the number of stacked second strip-shaped films 32, 42 is limited. That is, when the second strip film 3 2, 4 2 is packed in a container 21 such as a cardboard box, if the center of gravity is only a little, the stability is poor, and it will be at the end of the second strip film 3 2, 4 2. After the part sags, there is a possibility that the second band-shaped film 3 2, 4 2 may be damaged. Therefore, from this phenomenon, it cannot be said that the workability of the above method and the second strip films 3 2 and 4 2 obtained by this method is good. The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a method for manufacturing an optical thin film wafer having excellent cut surface efficiency and workability. At the same time, the other object of the present invention is to provide a paper with excellent cutting efficiency and paper size applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) _ 12 _

473619 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 _____B7_____ V. Description of the invention) Industrial optical film wafer intermediates. [Effects of the Invention] First, the present invention provides a manufacturing method for cutting an optical film wafer as an optical film wafer intermediate, and then cutting the optical film wafer intermediate to produce an optical film wafer, and The method includes cutting the strip-shaped optical film by a first reference direction having a predetermined directivity along the direction of the optical axis facing the optical film, and forming a vertical first direction along the direction facing the first reference direction. 2 The reference direction is used to cut a strip-shaped optical sheet, and provides an optical film crystal manufacturing method including a process for manufacturing a trapezoid optical film wafer intermediate. At the same time, the second aspect of the present invention provides a method of cutting the optical film wafer intermediate body along the second reference direction by using a side parallel to the second reference direction as a reference position, and cutting the optical film wafer intermediate body in parallel with the first reference direction. An optical film wafer manufacturing method for cutting the optical film wafer intermediate process along the first reference direction after the edge in the reference direction is used as the reference position. According to the first configuration described above, the first reference direction having a predetermined directivity in the direction of the optical axis facing the optical film is used to cut the optical strip-shaped optical film while cutting the optical reference film along the first reference direction. The strip-shaped optical film is formed by cutting the second reference direction that is perpendicular to the direction to form a trapezoidal optical film wafer intermediate body having a pair of opposite sides parallel to the first reference direction and a second reference direction that is parallel to the second reference direction. The reason for this is to cut the above-mentioned optical film wafer intermediates. The paper size applies the Chinese national standard (cns) a4 size (210x297 mm) -13- (Please read the precautions on the back before this page) Order 473619 A7 B7 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention) >> It is not necessary to respond to the directivity of the optical axis direction toward the above-mentioned first reference direction or the optical film wafer demon after the simulation is set to start cutting. M. 1 can form a relationship that can often be cut off from a predetermined reference position. Therefore, the workability is good. 0 According to the first or second of the present invention Because the optical film wafer intermediate body is trapezoidal, the optical film wafer intermediate body can prevent the light when the optical film wafer intermediate body is obtained. The front side and the back side of the thin film wafer intermediate are mixed together, and even if they occur, the front side and the back side can be simply integrated into one. * Because of this, the above structure can improve the workability better than before. Then according to the present invention The 1st or 2nd configuration has less wasteful end material than that obtained when the optical film wafer was obtained from the optical film wafer intermediate Π2Z .. Therefore, its cut surface efficiency is better than before. 0 Further, the third aspect of the present invention Provides a trapezoid having a pair of opposite sides parallel to a first reference direction having a predetermined directivity toward the optical axis and a side parallel to a second reference direction perpendicular to the first reference direction. In the middle of the optical film wafer, the με% body 0, in particular, the present invention provides a There is a pair of opposite sides parallel to the first reference direction which has a predetermined directivity to the direction of the optical axis, and a pair of opposite legs which are at right angles to the opposite side, and other feet parallel to the direction of the optical axis. Trapezoidal optical film wafer intermediate 〇Based on the above 3rd composition. Because the above optical film wafer intermediate is formed, it has the first directivity in the direction opposite to the optical axis. This paper size applies the Chinese National Standard (CNS) A4 specification ( 210X297 mm) -14 · 473619 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention ❹ 2) The reference direction is parallel— * Opposite side > and it is perpendicular to the first reference direction The side with the second reference direction parallel to that is > towards the above-the trapezoidal shape of the foot forming a right angle to the opposite side > Time »It is not necessary to respond to the directivity of the optical axis in the direction of the first reference direction or the size of the optical film wafer as in the past by jfiru m, and the formation of the reference position at which the cutting starts can be performed every time by simulation. The cutting starts at a predetermined position. Also, because the front and back surfaces of the above-mentioned optical film wafer intermediate body are not the same shape, it is for example when storing or manufacturing an optical film. When a wafer is used, the front side and the back side can be prevented from being mixed even if, for example, — It is also easy to integrate the front and the back into — * 〇 〇 Furthermore, because the above-mentioned optical film wafer intermediate body is formed into the above-mentioned trapezoid, the load center point is eccentric. By placing the bottom side in the opposite direction for packing or shipping Packing can divide the center of gravity into 2 (It can be stably packed to prevent sagging.) It can also increase the amount of packing (the number of stacks) without increasing the packaging container. ○ Therefore, the above-mentioned optical film wafer intermediate is larger than the conventional one. It has better workability. 0 At the same time, because the above-mentioned optical film wafer intermediate system can reduce the wasteful end material that is generated when the optical film wafer is obtained from the optical film wafer intermediate, it is also very good in section efficiency. ) The following figures 1 to 4 illustrate the embodiment of the present invention. 0 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm). 15-473619 A7 B7 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Fifth, the description of the invention ¢ 3) In this embodiment > The optical film system is for example the first As shown in the figure, first, after the first strip film 1 is manufactured into a strip-shaped optical film, the first strip film 1 is cut to be used as an intermediate of the optical film wafer, and then the optical film wafer is cut. After the intermediate is used as an optical film wafer, the direction of the optical axis (axial direction) of the first strip-shaped film 1 described above (axis direction) SD 〇 is formed with the rectangular direction of the first strip-shaped film 1 such as the extending direction 0 or less. 1 Fabrication of the strip-shaped film 1 is used to explain the basic structure of the optical film wafer. 0 When the first strip-shaped film 1 is a polarizing film, as shown in FIG. 2, for example, the polarizer of the first strip-shaped film 1 PVA (Polyvinyl alcohol) film 1 a TAC (—. Cellulose acetate) film 1 b sandwiched between 2 cellulose-based films 1 b and T AC film 1 b at the other end is provided with an adhesive layer 1 d 0 Also PYA (Polyethylene Enol) film 1 a contains a pigment to block light other than light that vibrates in a certain direction. At the same time, when the first strip film 1 has a retardation film, the first strip film 1 is made of, for example, polycarbonate. The film 0 formed of an ester-based resin or a polyether salt may be provided with an adhesive layer on one or both sides of the first strip-shaped film 1, and a peelable film may be pasted on the same. Attach a protective film to prevent scratches on one or both sides. The reason is to use this Itb optical film wafer in applications such as LCD. The axis direction SD 0 must be set due to the twist direction of m liquid crystal molecules. The axis of the optical film wafer The direction SD 0 is necessary to respond to the twist of the molecules of the liquid E i. The direction of the molecules E, etc., must be oriented toward the optical film wafer, such as a rectangular direction. Chinese National Standard (CNS) A4 size (210X 297 mm) -16- please first read the CAUTIONS on the back of the re-fill this page Ministry of Economic Affairs Bureau of Standards employees consumer cooperatives printed 473619 A7 _______B7 V. invention will be described μ) direction. In this embodiment, in order to obtain an optical film wafer having a predetermined orientation in the axial direction S Do, as shown in FIG. 1, first, the first strip film 1 is cut to obtain a ladder-shaped first film. 2 The strip film is used as the intermediate of the optical film wafer. Next, after cutting this second strip-shaped film 2 ', a plurality of rectangular films 3 and the like (see Fig. 3) are used as optical films of the final product, that is, optical film wafers (shaped films) can be obtained. At this time, in order to obtain the second strip-shaped film 2, the first strip-shaped film 1 is along the axial direction SD facing the first strip-shaped film. After the first reference direction having a predetermined directivity (that is, a predetermined 0 angle) is cut to a predetermined width, the second reference direction S D2 perpendicular to the first reference direction is formed after the first reference direction is cut. Was cut off. At the same time, in order to make the performance of the optical film wafer obtained at both ends of the rectangular direction of the first strip-shaped film 1 constant, it may be cut along the rectangular direction of the first strip-shaped film 1 and narrowed to a predetermined direction. width. As a result, the first strip-shaped film 1 is cut to have sides parallel to the first reference direction SDii-opposite sides, and sides parallel to the second reference direction SD2 (right-angled feet facing the pair of sides). ), And parallel to the above-mentioned optical axis SD. The trapezoidal shape of the side (the other leg parallel to the optical axis direction). In this embodiment, the first strip-shaped film 1 passes through the center of the area A 3 F 3 F 3 C 3 surrounded by the cutting line in the first reference direction SD t in the first figure (taken by A 3 E 3 F 3 C 3 (the midpoint of the diagonal of the parallelogram represented by the parallelogram) and is divided by 2 'formed that the above paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm)- 17-(Please read the precautions on the back of this page and then on this page) Order 473619 Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention 彳 5) 1 The area surrounded by the cutting line of the SD 1 reference direction A 3 E 3 F 3 C 3 forms two trapezoids of the same shape. Thereby, since the second strip-shaped film 2 having the same shape can be obtained, for example, when the second strip-shaped film 2 is cut to obtain a plurality of rectangular films 3, etc., the second strip-shaped film 2 can be overlapped. Cut into multiple pieces. At the same time, since the second band-shaped film 2 is stored or packed, it is not necessary to distinguish between sizes, and thus the work efficiency is excellent. In this embodiment, the order of cutting the first strip-shaped film 1 is cutting along the first reference direction SD i (cutting 1) and cutting along the second reference direction SD 2 (cutting 2 ), The order of cutting (cutting 3) along the rectangular direction (axial direction SD0) of the first strip film 1 is not particularly limited. For example, ① you can process cut 1 first, then cut 2 in order of cut 3; ② you can process cut 2 first, then cut in order 3; cut 1 in order, ③ After processing cut 3 first, then processing in the order of cutting 1; cutting 2; ④ You can also process cutting 3 first, and then processing in the order of cutting 2; cutting 1. Alternatively, the above-mentioned cuts 1 to 3 may be appropriately combined or processed in combination. The order in which the first strip-shaped film 1 is cut depends on the performance of the cutting machine. Or the number of cuts, etc., can be set appropriately to obtain the best efficiency. At the same time, in the case of processing cutting 1 and processing cutting 2, it is also possible to cut, for example, a plurality of overlapping strip-shaped films obtained by cutting 1 (for example, a parallelogram optical film represented by A3E3F3C3 in the figure). ). Furthermore, in the case of processing cutting 2 and processing cutting 1, the paper size applies the Chinese National Standard (CNS). A4 size (210X297 mm) · 18-(Please read the precautions on the back first ^^ (This page) — installed 'wood, -b 473619 A7 _____B7 _ ^ _ 5. Description of the invention 彳 6) After cutting 2 and cutting 1 are linked, a plurality of slits formed by cutting 2 are placed in the first After the band-shaped film 1 is aligned, both ends of the slit formed by the one cut 2 are aligned to perform the cut 1 to form a second band-shaped film 2 which can efficiently produce a plurality of sheets. The size of the second strip-shaped film 2 is matched with the size of the carriage 1 1 (see FIG. 3) that is used to cut the second strip-shaped film 2 into a plurality of rectangular films 3. In short, The second tape film is set in accordance with the size of a cutting blade of a cutting device (not shown) in which a rectangular film 3 is cut into a plurality of pieces. Next, it is considered that it is better to set a desired size of the optical thin film wafer. For example, when using a right-angled loading platform 11 of 120 mm (however, the effective size that can be cut by a cutting blade is 1 1 40), as long as the effective width of the first strip-shaped film 1 (which lies in the first belt) If the usable width of the thin film 1 in the narrow direction is 1000 mm, it will of course be affected by the desired size of the rectangular film 3, but when this rectangular film is used to obtain an optical film wafer, The second strip-shaped film 2 can be cut into, for example, I A3B3 | = 457mm, | C3D3 | = 957mm, | B 3 D 3 | = Consumer Consumers Cooperative Press of the Central Standard Bureau of the Ministry of Economics, 500mm, < A3C3D3 (The angle formed by the side A3C3 and the side C3D3), that is, the 0 angle is approximately 45 degrees (condition 1). At the same time, if the effective width of the first band-shaped film 1 is 1 200 mm, the second band-shaped film 2 can be cut into, for example, | A3B3 | = 634inm, I C. 3D3 丨 = ii34mm, I B3D3 I = 500 mm, < A3C3D3, that is, the 0 angle is approximately 45 degrees (condition 2). ^ The paper applies the fil national standard (CNS) A4 specification (210X ^ 97 mm). 19- 473619 A7 B7 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention 〇7) Then, in order to obtain a rectangular film 3 ′ As shown in Fig. 3, "the second strip is thin and the film 2 is loaded on the loading platform 1 1" while being cut along the first reference direction SDi to a predetermined width, and along the first 2 The strip-shaped film S D2 is cut to a predetermined width. As a result of this result, a rectangular thin film 3 formed from a pair of opposite sides parallel to the i-th reference direction SD and a pair of opposite sides parallel to the second reference direction SD2 can be obtained. In addition, the size of the rectangular thin film 3 can be set to a desired size according to a desired application. Here, each side of the second strip-shaped film 2 and the axial direction SD0 will be described. The first strip film SDi. And the relationship between the second reference direction SD2. In the first band-shaped film 1, the axial direction SD0 is parallel to the rectangular direction of the first band-shaped film 1, and is parallel to the side A3C3 of the second band-shaped film 2. The sides A 3 B 3 and C 3 D 3 of the second strip-shaped film 2 parallel to the first reference direction SD: face the axial direction SD. Tilt 0 degrees. Therefore, in order to cut the second strip-shaped film 2, when the second strip-shaped film 2 is loaded on the loading platform 11, a cut parallel to the first reference direction SD 1 is not shown in the figure. The cutting blade of the cutting device rides side A3B3 and side C3D3 parallel to the cutting blade. At the same time, in order to make the second reference direction S D2 parallel to the cutting blade, the side B3D3 is loaded in parallel with the cutting blade. In this case, the order of cutting in the first reference direction S D i and the cutting process in the second reference direction S D2 are not particularly limited. In this way, in order to obtain the rectangular thin film 3, the first reference is to the above-mentioned first reference.

Fill in I1 ¾ pages I i Ding m This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -20- 473619 A7 B7 V. Description of the invention) When cutting the second strip film 2 in the direction S Di, you can The side parallel to the first reference direction SD: of the second strip-shaped film 2, that is, the side α3E) 3 or the side C 3 D 3 is used as a reference position for starting the cutting, and cutting is started. For this reason, according to the above method of the present invention, a trapezoid having a pair of opposite sides parallel to the first, reference direction s 〇1 and a side parallel to the second reference direction SD2 is formed from the second strip film 2. The “shape-view” is formed when cutting the second strip-shaped film 2 without cutting the second strip-shaped film 2 in order to improve the efficiency of the cutting surface. It is conventionally set to start cutting according to the size of the rectangular film 3 or the angle of Θ. The position can often be cut off from a certain position. As a result, operational efficiency has been greatly improved. At the same time, according to the above method of the present invention, since the side A3B3 and the side CjjD3 parallel to the first reference direction SD: of the second strip-shaped film 2 or the side B3D3 parallel to the second reference direction SD2 are not generated, The end material of the rectangular thin film 3 of a predetermined size is formed, so the edge system generated by the end material 4 and the like (the meshed portion in the figure) is only a single side of the side A3C 3. Therefore, compared with the prior art, the present invention can reduce waste caused by the end material 4 and the like, and can improve the efficiency of the cut surface. Furthermore, according to the above-mentioned method of the present invention, the second strip-shaped film 2 obtained by the first strip-shaped film 1 with an effective width of 100 mm is loaded on the above-mentioned right-angled loading platform When cutting after 1 1 ', as long as two overlapping optical film wafer intermediate bodies (second strip film 2) can be cut at a time, it is formed that the second strip can be carried on the above-mentioned loading platform 1 1 The film has 2 places, so according to the aforementioned condition 1, the Chinese national standard (CNS) A4 specification (210X297 mm) is applied from the paper size. Please read the note on the back page printed by the Central Consumers Bureau of the Ministry of Economic Affairs, printed by the Consumer Cooperative -21- 473619 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the Invention (19) The first strip-shaped film 1 with an effective width of 100 mm is made into the above-mentioned second strip-shaped film 2 It can be cut once (4 5 7 mm + 9 5 7 mm) / 2 X 50 0 mm X 4 (pieces) — 1 4 1 Ί1 3 的 2 The second strip film 2. At the same time 5 According to the condition 2 described above, when the second strip-shaped film 2 is formed from the first strip-shaped film having an effective width of 12 00 mm, the cutting age m (6 3.4 mm + 11 3 4 Μ) / 2 X 5 0 0 mm X 4 (pieces) = 1.76 8 I η 6! 1 2nd band film 2 0 Therefore, it can be formed more efficiently using the loading platform 1 1 The formation of the area can increase the area of the optical film wafer intermediate body that is carried on the stage 11. Therefore, the area of the second strip film 2 that can be cut in one processing operation will be larger than in the past. Therefore, each unit can be increased. Therefore, the productivity can be improved. In addition, the so-called processing operation once refers to the optical film wafer intermediate Π.Ί ?. which is carried on the carriage 1 1 and then follows the first reference direction SD: The operation and cutting to a predetermined width In the second reference direction SD, the operation is cut to a predetermined width. 0 In this embodiment, although the optical film is cut along the first reference direction that has a predetermined directivity after facing the optical axis, but this —- Directivity is subject to the above θ angle regulation. The 0 angle refers to the angle at which the second strip-shaped film 2 forms a trapezoidal shape, preferably at 4 ◦ 8 9 .5 degrees or 9 0 5 degrees • s ». 1 4 0 荽 焦 范 丨 1, and further: If set: When set within the range of 40 degrees, 89 degrees or 91 degrees, 1 40 degrees, the paper size of the optical axis of the paper is applied to the Chinese National Standard (CNS) A4 specification (21 OX 297 mm) · 22 · 473619 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Inventive deduction) A 3 C 3 can be easily identified by visual inspection. The comparison of the methods can get more significant cut surface efficiency or workability improvement effect. When the above-mentioned 0-angle is 90 degrees, the second strip-shaped film 2 does not form a trapezoid, and in comparison with the conventional ones, it is not possible to improve the efficiency of cut surface efficiency or workability. Generally, when a polarizing film is used in an LCD or the like, the β angle is set according to the twist direction of the liquid crystal molecules. For example, the TN (Twisted Nematic) method and the TF Τ (Thiro Film Transistor) method are generally used for the LCD. It is in the range of 4 2 to 48 degrees, and the LCD in the STN (Swper Twisted Nematie) method is generally set in the range of 30 to 150 degrees. At the same time, it is in the case of a retardation film. Below, regardless of whether it is TN, TFT, or STN, any CD is generally set within a range of 30 degrees to 150 degrees. Even in this embodiment, it is in the second band shape. In a state where the film 2 is formed in a ladder shape, an angle of 0 within this range can be adopted. As described above, in this embodiment, after cutting the strip-shaped optical film to manufacture an optical film wafer intermediate, and then cutting the optical film wafer intermediate to manufacture a plurality of optical film wafers, It faces the axial direction SD of this 1st strip-shaped optical film. The first reference direction SD i having a predetermined directivity is then used to cut the first strip-shaped film as the above-mentioned strip-shaped optical film, and to form a vertical along the opposite direction to the first reference direction S Di The second reference direction S D2 is cut to produce a second strip-shaped film 2 in a ladder shape. Next, using the side parallel to the second reference direction S 〇2 of the second strip-shaped film 2 as a reference position and applying the Chinese National Standard (CNS) A4 specification (210X297 mm) along this paper scale, -23- ~ ( (Please read the notes on the back before filling out this page)

473619 A7 B7 Consumption Cooperation by Employees of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of Invention ¢ 1) The second reference direction S D2 is used to cut the second strip-shaped film 2 and parallel to the first reference direction. After the side of SD 1 is used as the reference position), it is cut parallel to the first reference direction SD i to obtain a rectangular film 3 (optical film). According to the above method of the present invention, by following the first reference direction SD 1st and 2nd reference: The direction SD2 is used to cut the first strip-shaped film and form a pair of opposite sides that can be parallel to the first reference direction S 〇1 having a predetermined direction opposite to the axial direction S Do. That is, a pair of opposite sides with a predetermined θ angle toward the optical axis), and an edge parallel to the second reference direction s D2 forming a perpendicular second reference direction SD 1 (that is, facing the-'pair Ladder-shaped optical film wafer intermediate body with opposite legs forming vertical feet). In the above-mentioned optical film wafer intermediate body, the other legs are parallel to the above-mentioned optical axis direction. This is because when the second strip-shaped film 2 of the optical film wafer intermediate body is cut, it is not necessary to cope with the directivity (θ angle) of the optical axis direction toward the first reference direction SD 1 as in the past. 'Or the size of the rectangular film 3, etc., it is often possible to start cutting from a certain reference position by simulating a reference position for setting the cutting start. Furthermore, the above method is based on the fact that the end material 4 produced when the rectangular thin film 3 is obtained from the second strip-shaped film 2 can be reduced more than before. The section efficiency is also better than in the past. At the same time, the second strip-shaped film 2 has a pair of opposite sides parallel to the first reference direction s D 1 with a predetermined directivity and a pair of opposite sides facing the above-mentioned first reference direction. SD: Form the standard of the paper. Applicable to China National Standard (CNS) A4 specification (210X297 mm) · 24-473473 A7 B7 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. The invention description buckle) Straight second reference direction SD2 The shape of the side of the foot (foot) has a shape with different front and back sides. This is because, when the second strip-shaped film 2 obtains the rectangular film 3 from the second strip-shaped film, the front and back sides of the second strip-shaped film 2 can be prevented from being mixed together, and even if they are mixed, it can be easily achieved. Regions have their pros and cons. At the same time, since the other leg portions of the second strip-shaped film 2 are parallel to the optical axis direction S D 0, the direction of the optical axis can be easily confirmed by visual inspection. In addition, since the other leg portions of the second strip-shaped film 2 are parallel to the axial direction S D Q, the axial direction S D 0 can be easily confirmed by visual inspection. At the same time, this is because in the present invention, because the second strip-shaped film 2 has different shapes of front and back surfaces, it is not only in the manufacturing process of the rectangular film 3 that the second strip-shaped film is cut in order to obtain the rectangular film 3 In the case of 2, it is possible to prevent the front side and the back side from being mixed even when it is stored or shipped, for example. Furthermore, in the present invention, since the second strip-shaped film 2 is formed in the above-mentioned ladder shape, the load center point is shifted from the center position. This is because the second strip-shaped film 2 can be stored in a pack, and the center of gravity can be made into two by stacking. Therefore, the end portion can be prevented from sagging and stacked more stably than before. For example, when the second strip-shaped film is packed, as shown in FIG. 4, the second strip-shaped film 2 is in a container 21 formed by a box or the like having a certain size, and the second strip-shaped film 2 After the front side of the film 2 faces upward, for example, it is divided into a plurality of sections by a partition plate (not shown). This (please read the notes on the back before filling in this page) b,-'° This paper size applies to China National Standard (CNS) A4 (210X297 mm) -25- Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 473619 A7 B7 V. Description of the invention ㈡) The outer side is located on the inner side of the container 2 1 above, and 3 is provided to prevent the optical film from contacting the container 2 1 or the space not shown in the figure is moved to form the second strip-shaped film 2. It does not come into direct contact with the container 21. In this case, in order to form the sides A3 to C, 3D3 of the second strip-shaped film 2 parallel to the first reference direction SDi and the sides B3C3 of the second reference direction SD2 and the sides of the container 21 The two sides are opposite to each other so that the direction of the bottom edge of the film 2 can be reversed every other segment (that is, the position of the edge C 3 D 3 is changed every other segment), and it is not necessary to pack. The second strip-shaped film 2 is reversed, and at the same time, the space in the container 21 can be effectively used to stack the second strip-shaped film 2 without increasing the size of the container 21. Moreover, in this case, since the position of the center of gravity can be changed every one step, the center of gravity of the second strip-shaped film 2 to be stacked can be made to be two. For this reason, the formation can be prevented from sagging and can be stably stacked. Since it is packed, the number of stages capable of stacking the second strip film 2 can be increased. Therefore, it is possible to increase the packing amount (the number of stacks) without increasing the size of the container 21. In addition, in the above-mentioned container 21, although the number of sheets of the second band-shaped film 2 that can be stacked in each section will vary depending on the strength of the container 21, for example, if the conventional optical film can be stacked in each section If the fragment of the wafer intermediate is about 20 pieces, it is possible to stack, for example, 25 pieces of N 30 pieces. As described above, the method for manufacturing an optical film according to the present invention has improved cutting efficiency and workability as compared with the past. At the same time, according to the composition of the optical film wafer intermediate of the present invention for obtaining the above-mentioned optical film wafer, the paper size can be adapted to the Chinese National Standard (CNS) A4 specification (210X297 mm) -26-(Please read the note on the back first (Fill in this page again)

1T 473619 A7 B7______ V. Description of the invention) To provide an optical thin film wafer intermediate with better cutting efficiency and workability than before. In addition, in this embodiment, although a rectangular optical thin film wafer is used as the optical thin film wafer, the shape of the optical thin film wafer of the present invention is not limited to this, and it may be opposed by one of the parallel L-th reference directions SD i. And a square parallel to one of the opposite sides parallel to the second reference direction S 〇 2. In the following, Fig. 3, Fig. 7, and Fig. 9 are used, and a polarizing film is used as the optical film wafer as an example to explain the case where the optical film wafer intermediate body of this embodiment is used, and the method 1 described above is used. In the case of an optical thin film wafer intermediate, and in the case of using the optical thin film intermediate of the method 2 described above, the results of section efficiency and work efficiency when using these optical thin film intermediates for manufacturing an optical thin film wafer are compared. In addition, the above-mentioned cross-sectional efficiency is evaluated based on the occupation ratio (yield%) of the total area of the polarizing film wafer per unit area of the polarizing film wafer intermediate. At the same time, the above method 1 and method 2 are made by cutting and calculating the cut surface by simulation to obtain the best yield. Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs At the same time, the above-mentioned operability is evaluated by the number of finished polarized film wafers (quantity) obtained in one processing operation. In addition, in the container 21 described above, although the segments of the second strip-shaped film 2 that can be stacked per one stage are different depending on the strength of the container 21, etc., for example, if the optical films that can be stacked in the previous stage are stacked, If the fragment of the wafer intermediate is about 20 pieces, it can be stacked, for example, from 2 to 30 pieces. -27- This paper size is in accordance with Chinese National Standard (CNS) A4 specification (21〇 × 297 mm) 473619 A7 B7 V. Description of the invention 咋) Thus, according to the manufacturing method of the optical thin film wafer of the present invention, the cutting surface efficiency and operation are formed. Sex can be better than ever. At the same time, according to the constitution of the optical film wafer intermediate of the present invention for obtaining the above-mentioned optical film wafer, an optical film wafer intermediate capable of providing better cutting efficiency and workability than in the past is formed. In addition, in this embodiment, although a rectangular thin film wafer is used as the optical thin film wafer, the shape of the optical thin film wafer of the present invention is not limited to this, and it may be formed by paralleling the first reference direction s D i A pair of opposite sides. And a square parallel to one of the opposite sides parallel to the second reference direction SD2. In the following, referring to FIG. 3, FIG. 7 and FIG. 9, and using a polarizing film as the optical film wafer as an example, the case where the optical film wafer intermediate body of this embodiment is used, and the aforementioned method 7 will be described. In the case of optical film intermediates' and in the case of using the optical film intermediates of the previous method 2, compare the results of section efficiency and operating efficiency in the case of using these optical film wafer intermediates to manufacture optical film wafers. . In addition, the above-mentioned cross-sectional efficiency is evaluated based on the occupation rate (yield (%)) of the total area of the polarizing film wafer per unit area of the polarizing film wafer intermediate. At the same time, the above-mentioned method 1 and method 2 are made by cutting and calculating the cut surface by simulation to obtain the best yield. At the same time, the above workability was evaluated by the number of finished polarized film wafers (quantity) obtained in one operation. The cutting device is NS-1200 type manufactured by Susono. This paper size is applicable to Chinese National Standard (CNS) A4 (210X29? Mm) Please read the "fir I" item first and then the page of the staff of the Central Standards Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperative -28- 473619 A7 B7 V. Description of the invention) Please read the precautions before reading the size of the loading platform 1 1 2 0 Ommx 1 2 0 Omm, effective size 1 1 4 Omm. In this case, when the polarizing film wafer intermediate body is loaded on the above-mentioned loading platform 11, it can be processed once due to the effective size of the scale that can be cut by the cutting blade of the cutting device. The polarizing film wafer intermediate is as follows. In addition, it is cut once to make it possible to process two overlapping polarizing film wafers. At the same time, the 0 angle (tilt angle) formed by the first reference direction S D i. Facing the axial direction S D Q is set to 45 degrees. In the case where a strip-shaped polarizing film (first strip-shaped film) having an effective width of 100 mm is used, the intermediate system of the polarizing film wafer that can be processed by the method 1 is A i B i I = IC i D i | = 500 mm, and I AiCi I = I BiDi I = 100 mm (see Fig. 7), a two-piece polarizing film wafer intermediate body (hereinafter referred to as intermediate body A). Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs in the case where a strip-shaped polarizing film (first strip-shaped film) with an effective width of 100 mm is used, the intermediate system of the polarizing film wafer that can be processed by method 2 is IA 2 C 2 | = | B 2 D 2 丨 = 6 5 0 mm. And the distance between the side A2D2 and the side C2D2 is 4 6 Omm, the distance between the side A2C2 and the side B2D2 is 50 Omm, < A2C2D2 = < A2B2D2 = 4 5 degrees (refer to figure 9) Four polarizing film wafer intermediates (hereinafter referred to as intermediate B). When using a strip-shaped polarizing film (first strip-shaped film) with an effective width of 100 mm, the method of this embodiment can be used. 29- This paper size applies the Chinese National Standard (CNS) Α4 specification ( 210x297 mm) 473619 A7 B7 V. Description of the invention p) The intermediate system of the polarizing film wafer treated is 丨 A3B2 丨 = 4 5 7 mm '| C3D3. | = 957mm. IB3D3 1 = 500 mm, < A3C3D3 = 4 4 polarizing film wafer intermediates (referred to as 'intermediate c' below) in the size of 5 degrees (see Figure 3) ° At the same time, the effective width is 1 2 Q In the case of a strip-shaped polarizing film (the first strip-shaped film) of 0 mm, the intermediate system of the polarizing film wafer that can be processed by the method of this embodiment is A 3 B 3 1 = 634 mm, | C3D3 | = ll34nim , IB 3 D 3 | 50 0mm, < A3C3D3 = 4 5 degrees (please refer to Figure 3) size of 4 pieces of polarizing film wafer intermediate (hereinafter 'intermediate D'). Table 1 shows the yields, the area of one polarizing film wafer, and the number of polarizing film wafers (sections) of polarizing film intermediates corresponding to the polarizing wafer intermediate when the above methods are used. The sizes of the manufactured polarizing film wafers are shown below. (Please read the notes on the back before filling out this page) Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs

Sample N Sample N Sample N Sample N Sample N 1 2 3 4 5 99mmxl4mm 105mmx27mm 62mmxl7-5nin 341mmXl4-5 79.0mmXl5'3 m -30- This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) 473619 five The invention description) Table 1 Types of intermediates used in polarized thin film crystals Intermediate A Intermediate B Intermediate C Intermediate D Sample area Number of tablets Yield Number of tablets Yield Number of tablets Yield W 1) ( Finland 2) (%) W 2) (%) ⑽2) (%) W 2) (%) 1 13.9 276 76.5 124 74.7 223 87.4 290 90.9 2 28.4 128 72.6 56 69.0. 108 8 6.6 140 89.7 3 10.9 379 82.2 168 79.3 293 89.9 376 92.3 4 4.9 893 88.3 407 8 7.5. 673 94.1 851 95.2 5 12.2 324 78.8 148 78.2 264 90.8 329 90.5 ^ 7 ※ 1 The area of the polarizing film wafer (in cm2). (Notes on this page, please fill in this page again) ※ Number of sliced polarized film wafers (units) At the same time, the number of finished products and the number of cuts in the case of using the above-mentioned methods are shown in Table 2. In addition, the number of times of cutting refers to the total number of times of cutting in the first reference direction SD2 and the number of times of cutting in the second reference direction SD 2 in one processing operation. Printed by Zhengong Consumer Cooperative, Central Standards Bureau, Ministry of Economic Affairs -31-This paper size is applicable to China National Wax Standard (CNS) A4 (210X 297 mm) 473619 A7 ____ B7 V. Description of Invention 纟 9) Table 2 Sample (※ 3 ) Processed intermediate intermediates AX 2 pieces of intermediates BX 4 pieces of intermediates c X 4 pieces of intermediates E) X 4 pieces of cut-off products Number of cut-off products Number of cut-off products Number of cut-off products Number of cut-off products (Piece) number (piece) number (piece) number (piece) 1 74 552 75 496-82 892 84 1160 2 43 256 42 224 47 432 49 560 3 72 758 67 672 73 1172 76 1504 4 100 1786 91 1628 98 2692 194 3404 5 74 648 70 592 82 1056 83 1316 (Please read the precautions on the back before filling out this page) ※ 3 Polarizing film wafer sample No. (corresponding to Table I) Further 'Table 3 shows the method used in this embodiment In the case, the improvement efficiency and workability of the cut surface compared with the above methods 1 and 2 are used. That is, when the intermediate C or the intermediate D is used, the cut surface improvement rate and workability of the intermediate A or the intermediate B are used. Improvement rate. In addition, the improvement rate of the cut surface and the improvement rate of workability are calculated by the following formulas. Section improvement rate = (yield when using the method of this embodiment)-(yield when using method 1 or method 2) workability improvement rate = (finished product when using the method of this embodiment) Number) one (number of finished products when using method 1 or method 2) X 1 〇0-100

, 1T Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs

R V. Description of the invention) Table 3 ----- The ζ good rate (%) of the cut surface The improvement rate (%) of the operation & the intermediate body of the intermediate body, the middle body, the middle body, the middle body, and the middle body C-body D-body 'C-body D-body C-body D In contrast, Intermediate A Intermediate B Intermediate A Intermediate 1 Type of B Intermediate 1 + 10.9 + 14.4 + 12.7 + 16.2 + 62 + 80 + 80 + 134 W 3) 2 + 14.0 + 17.1 + 17.6 + 20.7 + 69 + 119 + 93 + 150 3 + 7.7 + 10.1 + 10.6 + 13.0 + 55 + 98 + 74 + 124 4 + 5.8 + 6.9 + 6.6 + 7.7 + 5 1 + 91 + 65 + 109 5 + 12.0 + 11.7 + 12.6 + 12.3 + 63 + 103 + 78 + 122 ※ 3 Polarizing film wafer sample No. (corresponding to Table 1) You can clearly understand from Table 1 to Table 3, just use In the method of the present invention, the cutting rate and operation efficiency are improved compared to the above method (the conventional method) and the method 2. '' Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs At the same time, the effect of the present invention is more significant as the effective area of the first strip film or the desired area of the optical film wafer becomes larger. For example, although the cutting improvement rate of ultra-small optical film wafers with an area of less than 5 cm2 is within + (positive) 10%, the cutting improvement rate of small optical film wafers with an area exceeding 10 cm2 is about 10% to 20%. 'Significantly improve section efficiency. At the same time, the productivity of each cut (one cut) can be increased by +50 to + 100%. -33- This paper size is in accordance with Chinese National Standard (CNS) A4 (210X297 mm) 473619 A7 B7 V. Description of the invention) Furthermore, when the method of this embodiment is used, because the cutting position is constant, Therefore, it is not necessary to calculate the cutting planes by simulating cutting. At the same time, the number of cutting planes can be calculated by using an equation. In addition, the results of Tables 1 to 3 above are the results of using the same size intermediates (the above-mentioned intermediates A to D) without being restricted by the size of the polarizing film wafer. Therefore, the original (set the interval between the sides parallel to the first reference direction at an appropriate interval (that is, the interval between the side A .2 B 2 and the side C 2 D 2) or I B3D3 | About the above-mentioned intermediate B ~ D series Although the side parallel to the first reference direction S Di can be obtained without generating an end material, the result is that the side parallel to the first reference direction will be generated with the same width according to the size of the polarizing wafer. Band-shaped end material. The reason is that the above-mentioned intermediates B to D are the efficiency of the cutting surface efficiency, work efficiency, cutting surface improvement rate, and workability improvement rate of the end material generated by the side parallel to the first reference direction. Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs, but 'actually sets the interval of each side parallel to the first reference direction according to the size of the polarizing film wafer (that is, the interval of side A2B2 and side C2D2, or 1 B3D3 |), Therefore, the end material will not be generated on the side parallel to the first reference direction SDi of the intermediates B to D, or even if there is only one point. For this reason, the above intermediates B to D are cut. Efficiency, work efficiency, cut improvement rate, and workability improvement rate will be greatly improved. Therefore, as long as the above points are considered, the cut efficiency and work efficiency of Intermediate A are the worst. Then follow Intermediate B, Intermediate C , The order of intermediate D, its sectioning efficiency and operating efficiency become larger in order. The standard ^^ is suitable for wealth, close to the family (€ 4, 8 specifications (21 () / 297 mm) Γ3ΓΙ 473619 A7 B7 Central Bureau of Standards, Ministry of Economic Affairs Printed by Employee Consumer Cooperatives 5. Description of the invention 02) The above shows the results when the optical film is a polarizing film 9 but the same operation can be performed when the optical film is a retardation film as described above »In the present invention The first method for manufacturing an optical thin film wafer belongs to a method of manufacturing a plurality of optical thin film wafers after cutting a strip-shaped optical film to form an optical thin film wafer intermediate body and then cutting the optical thin film wafer intermediate body. A method for manufacturing a thin film wafer includes cutting a mz strip-shaped optical film along a first reference direction with a predetermined directivity after facing the optical axis of the optical film. The above-mentioned first reference direction forms a vertical second reference direction for cutting a band-shaped optical film and manufacturing a ladder-shaped optical film wafer intermediate. The method of manufacturing the second optical film wafer of the present invention is as described above. > Including the side parallel to the second reference direction as the reference position, and cutting the optical film wafer intermediate along the second reference direction along with the side parallel to the first reference direction as the reference position It is then used to cut along the first reference direction—the above-mentioned project of the optical film wafer intermediate. When the optical film wafer intermediate body is cut, it is not necessary to set the start of the formation each time by simulation in response to the directivity of the optical direction toward the first reference direction or the size of the optical film wafer. The reference position for cutting can often be cut from a certain reference position. At the same time, because the optical film wafer intermediate is in the shape of a ladder, the optical film wafer is obtained from the optical film wafer intermediate. The paper size is applicable to China Standard (CNS) A4 specification (2 丨 〇 < 297 mm) -35- Please read the precautions of the back A before reading 473619 A7 B7 V. Description of the invention 03), the formation can prevent the optical film wafer The front and back sides of the intermediate are mixed together, and even if they are mixed together, they can be easily distinguished into consistent ones. Furthermore, fewer end materials are generated when an optical thin film wafer is obtained from the optical thin film wafer intermediate body than in the past. Therefore, according to the present invention, it is possible to achieve better cutting efficiency and workability than before. Meanwhile, as described above, the optical film wafer intermediate system of the present invention is formed to have a pair of opposite sides parallel to the first reference direction having a predetermined directivity after facing the optical axis direction, and to face the first reference direction Ladder shape of the side parallel to the right angle in the second reference direction. Furthermore, the optical film wafer intermediate body of the present invention may be formed to have a pair of opposite sides parallel to the first reference direction having a predetermined directivity toward the direction of the optical axis, and form a right angle to the pair of opposite sides. Ladder shape of other feet and other feet parallel to the optical axis direction. Based on these structures, printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, when the optical film wafer is obtained in the middle of the optical film wafer, it is not necessary to respond to the directivity of the optical axis direction toward the first reference direction or the optical film as before The size of the wafer and the like can be set at a reference position at which cutting is started each time by simulation, and the cutting can often be started from a certain reference position. Moreover, because the shape of the front and back surfaces of the above-mentioned optical film wafer intermediate is different, it is possible to prevent the front and back sides from being mixed together, for example, during storage, at the time of shipment, or during the manufacture of the optical film wafer, even if they are mixed together. Be positive and negative. Furthermore, because the above-mentioned optical film wafer intermediate system is formed into the above-mentioned ladder shape, the load center point is eccentric 'and because it is in storage or out -36- (Please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) 473619 A7 _____B7 V. Description of the invention 04) When packing the goods, the direction of the bottom edge is reversed and the packing is performed, so that the center of gravity can be made into two The formation can be stably stacked and packed, and it can prevent sagging. At the same time, the amount of packing (stacking number) can be increased without increasing the packaging container. At the same time, it is possible to reduce the end material generated when the optical film wafer intermediate is obtained from the optical film wafer intermediate. Therefore, the above-mentioned optical film wafer intermediate can achieve better workability and cutting efficiency than before. [Brief Description of Drawings] Fig. 1 is a method for manufacturing an optical film wafer according to an embodiment of the present invention, and illustrates cutting of a strip-shaped optical film from the production of a strip-shaped optical film to an optical film wafer intermediate. Image of method. Fig. 2 is a schematic front view of the structure of a polarizing film according to an embodiment of the present invention. Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. Figure 3 is an image illustrating a method for cutting an optical film intermediate from the optical film wafer intermediate according to an embodiment of the present invention to the production of the optical film intermediate. Fig. 4 is a schematic plan view of a packing form when an optical film wafer intermediate body is packed according to an embodiment of the present invention. (A) of FIG. 5 is a schematic perspective view of a TN mode standard black liquid crystal display device, and (b) is a schematic view of a TN mode standard white liquid crystal display device. Figure 6 is related to the previous manufacturing method of optical film wafers, explanation -37- This paper size applies Chinese National Standard (CNS) A4 specification (210X297mm) 473619 A7 B7 V. Inventive Lang) & Ribbon Optical Film Image of cutting method to optical film wafer intermediate. Fig. 7 is an image illustrating a method for cutting the optical film wafer intermediate body from the optical film wafer intermediate body shown in Fig. 6 to the optical film wafer intermediate body during the manufacture of the optical wafer. Fig. 8 is an image illustrating a method for manufacturing an optical film wafer for comparison, from a band-shaped optical film to a method for cutting a band-shaped optical film in the manufacture of an optical film wafer intermediate. Fig. 9 is an image illustrating a method for cutting the optical film wafer intermediate from the optical film wafer intermediate of Fig. 8 to the production of the optical film wafer intermediate. FIG. 10 is a schematic plan view of a packaging form when the optical film wafer intermediate body of FIG. 6 is packaged. Fig. 11 is a schematic plan view of a packing form when the optical film wafer intermediate body of Fig. 8 is packaged. [Notation] '' Printed by the Consumer Cooperatives of the Central Bureau of Standards, Ministry of Economic Affairs 1 The first strip film (optical film film) 2 The second strip film (optical film wafer intermediate) 3 Rectangular film (optical film wafer) 4 End material 11 Carrying platform 2 1 Container The paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) -38-

Claims (1)

473619 Supplementary application for application 1%%) ^^ Amendment Supplementary Annex 1: Patent Application No. 87 1 05297 Amendment to Chinese Patent Application Amendment April 1990 Amendment 1. A method for manufacturing optical film wafers An optical film is used to make an optical film wafer intermediate, and then the optical film intermediate is cut to produce a plurality of optical film wafers. The method of manufacturing an optical film wafer includes: The optical axis direction of the film is cut in a first reference direction having a predetermined directivity, and the strip-shaped optical film is cut along a second reference direction forming a right angle to the first reference direction to produce a ladder. Process (manufacturing process) of the shape of the optical film wafer intermediate. 2. The method for manufacturing an optical film wafer according to item 1 of the scope of the patent application, which includes cutting the optical film wafer intermediate body along the second reference direction while using the side that is parallel to the second reference direction as a reference position. 'The process of cutting the optical film wafer intermediate body along the first reference direction with 2 ^ rows of edges in the first reference direction as reference positions. -I. 3. An optical film wafer intermediate formed to have a parallel / opposite side to a first reference direction having a predetermined directivity with respect to the direction of the absorption axis, and a right angle to the first reference direction A polarizing film having a ladder shape with parallel sides in the second reference direction. 4. An optical film wafer intermediate, which is formed to have a # opposite edge parallel to a first reference / direction having a predetermined directivity for the direction of the absorption axis, and a leg forming a right angle to the opposite edge 'And ladder-shaped polarizing film of other feet parallel to the direction of the absorption axis ° 473619 A8 B8 C8 D8 VI. Application for patent scope 5. An optical film wafer intermediate is formed to have A polarizing film having a ladder shape having a pair of opposite sides parallel to a first reference direction having a predetermined directivity in the axial direction, and a side parallel to a second reference direction forming a right angle to the first reference direction. 6. An optical thin film wafer intermediate body formed to have a pair of opposite sides parallel to a first reference direction having a predetermined directivity with respect to a slow axis or a forward axis direction, and to the pair of opposite edges Ladder-shaped retardation film sheet with feet at right angles and other feet parallel to the direction of the slow axis or phase axis. --------------------- Order --------- ^^ 1 (Please read the notes on the back before filling in this page) Ministry of Economy Wisdom The paper size printed by the Property Cooperative Consumer Cooperative is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm)