JP6737536B2 - Cutout type, cutout device and cutout method using the same - Google Patents

Description

The present invention relates to a cutting-out die, a cutting-out device and a cutting-out method using the same, and more particularly to a cutting-out die in which a plurality of cutters are arranged, a cutting-out device and a cutting-out method using the same.

In the conventional cutting method, after the optical film is cut from the wound optical film every time, the edge and the interval waste are also cut. If the number of times of cutting is large, the amount of waste also increases, which leads to waste of the material of the wound optical film. Therefore, a new cutting method that can reduce waste is needed.

For example, as shown in Taiwan Patent Publication No. I566909, the mechanism for collecting waste and the module for cutting off the protective film are protected. The process of recovering the protective film waste can be greatly simplified. However, the mechanism for collecting the waste and the module for cutting off the protective film cannot effectively reduce the amount of waste.

Therefore, the present invention provides a cutting-out die, a cutting-out device and a cutting-out method using the same so as to solve the conventional problems.

One embodiment of the present invention provides a cutout mold. The cutout type is used to cut out the optical film. The cut-out die includes a mounting member, a first cutter and a second cutter. The first cutter is attached to the mounting member and extends along the first direction. The second cutter is attached to the mounting member and extends along the second direction. The first direction is substantially perpendicular to the second direction. The first cutter and the second cutter form an opening so as to connect and surround each other. The opening is cut corresponding to one side of the optical film.

Another embodiment of the present invention provides a cutout mold. The cutout die is used to cut out the optical film. A plurality of optical film sheets are arranged on the optical film, and there is a second gap between two adjacent optical film sheets. The cutout die includes a mounting member, a first cutter, a second cutter, and an edge cutting cutter. The first cutter is attached to the mounting member and extends along the first direction. The second cutter is attached to the mounting member and extends along the second direction. The first direction is substantially perpendicular to the second direction. The first cutter and the second cutter form an opening so as to connect and surround each other. The opening corresponds to the side of the cut optical film. The edge cutting cutter and the first cutter are arranged along the second direction, and the first cutter and the edge cutting cutter have a first gap. The first gap is larger than the second gap.

Another embodiment of the present invention provides a cutout mold. The cutout type is used to cut out the optical film. The cutout mold includes a mounting member and an open type cutter. The open cutter includes an open opening. The open aperture cuts corresponding to at least one side of the optical film.

Another embodiment of the invention provides a cutting device. The cutting device includes a feeding mechanism, a conveying mechanism, the cutting die and the controller described above. The controller controls the feeding mechanism to release or fix the wound optical film, controls the conveying mechanism to convey the wound optical film, and controls the cutout die to wind the wound optical film. Used to cut out the optical film.

Another embodiment of the invention provides a cutting method. The cutting method includes the following steps. The transport mechanism transports the wound optical film and advances it in the transport direction until the wound optical film reaches below the above-mentioned cut-out type open-type cutter; The film is cut out, and an open-type cutout cutter cuts out the optical film. The optical film has an alignment cut, and the alignment cut and the opening position of the open-type cutter substantially coincide with each other.

Another embodiment of the invention provides a cutting method. The cutting method includes the following steps. A rolled optical film is provided. Among them, the wound optical film has smooth sides. The open-type cutter cuts the wound optical film to form an optical film. Among them, the opening of the open-type cutter is aligned with the smooth side of the wound optical film.

Another embodiment of the invention provides a cutting method. The cutting method includes the following steps. The transport mechanism transports the wound optical film and advances in the transport direction until the wound optical film reaches below the first cutter of the cutout die described above; the cutout die was wound. The first cutting of the optical film is performed, and the cut-out type first cutter makes the alignment cut of the wound optical film; the transport mechanism pulls the wound optical film, The optical film is continuously advanced in the conveying direction until it reaches below the first cutter and the second cutter; and the optical film around which the cutting die is wound is cut a second time, The optical film is cut out from the optical film wound by the cut-out type first cutter and the second cutter. The optical film has a first side and a second side that face each other, and the first side and the alignment cut are the same side.

Another embodiment of the invention provides a cutting method. The cutting method includes the following steps. A transport mechanism transports the wound optical film and advances it in the transport direction until the wound optical film and one of the optical film sheets in the wound optical film reach below the cut-out type edge cutting cutter; The first cutting is performed on the optical film on which the die is wound, and the cut edge for cutting the optical film is wound by the edge cutting cutter and the cut for aligning one of the optical film sheets. A transport mechanism pulls the wound optical film and continuously advances in the transport direction until the second gap reaches below the first gap; and the cutout die is wound. The optical film is cut a second time, and the optical film is cut from the optical film wound with the cut-out type first cutter and the second cutter and one of the optical film sheets. The optical film and the second gap are completely separated, the optical film has opposing first and second sides, and the first side and the alignment cut are the same side. In the step of making a second cut on the wound optical film by the cutting die, an edge cutting cutter makes a new alignment cut in the wound optical film.

One embodiment according to the present invention provides a cutting device. The cutting device is used for cutting the optical film. The cutting device includes a transport mechanism, a cutting means, and a first edge material recovery device. The transport mechanism is used to transport the optical film along the transport direction. The cutting means is used to cut the optical film. The optical film after being cut forms a first edge material. The first edge material recovery device is used for winding the first edge material along the first recovery direction. Among them, the first collecting direction and the conveying direction are not parallel.

Hereinafter, the technical invention according to the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention.

FIG. 1A is a view showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 1B is a diagram showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 2A is a diagram showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 2B is a diagram showing a process of cutting an optical film wound by a cutting device in one embodiment according to the present invention. FIG. 3A is a diagram showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 3B is a diagram showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 4A is a diagram showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 4B is a diagram showing a process of cutting an optical film wound by a cutting device in one embodiment according to the present invention. FIG. 5A is a diagram showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 5B is a diagram showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 6A is a diagram showing a process of cutting an optical film wound by a cutting device according to an embodiment of the present invention. FIG. 6B is a view showing a process of cutting the wound optical film by the cutting device in one embodiment according to the present invention. FIG. 7 is a cut-out type top view in the second embodiment according to the present invention. FIG. 8 is a top view of a cut-out type according to another embodiment of the present invention. FIG. 9 is a top view of a cut-out type according to another embodiment of the present invention. FIG. 10 is a top view of a cutout type in another embodiment according to the present invention. FIG. 11 is a cut-away type top view in another embodiment according to the present invention. FIG. 12 is a top view of a cutout type in another embodiment according to the present invention. FIG. 13 is a top view of a cutout type in another embodiment according to the present invention. FIG. 14A is a cutaway bottom view of another embodiment of the present invention. FIG. 14B is a side view of the cutout mold shown in FIG. 14A. FIG. 15 is a cut-out type bottom view according to another embodiment of the present invention. FIG. 16 is a cut-out type bottom view according to another embodiment of the present invention. FIG. 17 is a cut-away type top view in another embodiment according to the present invention. FIG. 18 is a top view of a cutout type in another embodiment according to the present invention. FIG. 19 is a top view of a cutout type in another embodiment according to the present invention. FIG. 20 is a schematic diagram of a supply mechanism in another embodiment according to the present invention. FIG. 21 is a view showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 22A is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 22B is a diagram showing a process of cutting an optical film wound by a cutting device in another embodiment according to the present invention. FIG. 23A is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 23B is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 24A is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 24B is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 25A is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 25B is a view showing a process of cutting an optical film wound by a cutting device in another embodiment according to the present invention. FIG. 26A is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 26B is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 27A is a cutaway bottom view of another embodiment of the present invention. FIG. 27B is a side view of the cutout die shown in FIG. 27A. FIG. 28 is a cut-away type top view in another embodiment according to the present invention. FIG. 29A is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 29B is a diagram showing a process of cutting an optical film wound by a cutting device in another embodiment of the present invention. FIG. 30A is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 30B is a diagram showing a process of cutting an optical film wound by a cutting device according to another embodiment of the present invention. FIG. 31 is a schematic view of cutting out an optical film wound by a cutting device in another embodiment according to the present invention. FIG. 32 is a schematic view of a second edge material recovery device according to another embodiment of the present invention.

1A to 6B are views showing a process of cutting an optical film 10 wound by a cutting device 100 in one embodiment according to the present invention.

As shown in FIGS. 1A and 1B, FIG. 1A is a schematic view of a cutting device 100 according to one embodiment of the present invention, and FIG. 1B is a top view of the cutting die 140 shown in FIG. 1A. The cutting device 100 includes a supply mechanism 110, a transport mechanism 120, a controller 130, and a cutting die 140.

The supply mechanism 110 includes a coil wheel 111. The wound optical film 10 is wound around the coil wheel 111. The feeding mechanism 110 further includes two first nip rolls 112 arranged in pairs. The first nip roll 112 is adjacent to the coil wheel 111, and the optical film 10 around which the first nip roll 112 is wound can be fixed or released. By this, the length of advance of the wound optical film 10 can be controlled. Further, in another embodiment, the rolled optical film 10 may be carried out from below the coil wheel 111 (as indicated by the dotted line in FIG. 1A).

In one embodiment, as shown in the enlarged view of the portion A′ in FIG. 1A (showing the cross section of the rolled optical film 10 ), the rolled optical film 10 includes a release film 10 a and a polarizing film 10 b. And a surface protective film 10c. Among them, the polarizing film 10b is located between the release film 10a and the surface protection film 10c. The polarizing film 10b is formed of a polyvinyl alcohol (Polyvinyl Alcohol, PVA) film. The material of the polyvinyl alcohol-based film may be, for example, polyvinyl alcohol or its derivative. Derivatives of polyvinyl alcohol include polyvinyl formal, polyvinyl acetal, and the like, as well as olefins such as ethylene and propylene, unsaturated carboxylic acids such as acrylic acid, methacrylic acid, and butyric acid, or their alkyl esters, and modified ones such as acrylamide. May be included.

In one embodiment, a protective layer (not shown) is disposed on at least one side of the polarizing film 10b. The protective layer may have a single-layer structure or a multi-layer structure. The material of the protective layer may be a cellulose resin, an acrylic resin, a polyester resin, an olefin resin, a polycarbonate resin, a cyclic olefin resin, oriented stretched polypropylene, polyethylene, polypropylene, a cycloolefin polymer, a cycloolefin copolymer, or the above. It may include any combination.

The surface protective film 10c and the release film 10a may each have a single-layer structure or a multi-layer structure. The material is a cellulosic resin, acrylic resin, polyester resin, olefin resin, polycarbonate resin, cyclic olefin resin, oriented polypropylene, polyethylene, polypropylene, cycloolefin polymer, cycloolefin copolymer, or any of the above. May be included.

The transport mechanism 120 can operate continuously. Accordingly, when the supply mechanism 110 releases the wound optical film 10, the supply mechanism 110 keeps the wound optical film 10 fixed and the wound optical film positioned above the transport mechanism 120. 10 is driven by the transport mechanism 120 to move in the transport direction S1. The transport mechanism 120 is, for example, a belt transport mechanism, but the embodiment according to the present invention is not limited to this. In one embodiment, the speed at which the transport mechanism 120 transports the optical film 11 to be subsequently cut may be different from the speed at which the supply mechanism 110 transports the wound optical film 10.

The cutting die 140 is located above the wound optical film 10 and can cut the optical film 10 wound downward. The cut-out die 140 includes a punch 141, a mounting member 142, and an open type cutter 140a. The mounting member 142 is attached to the punch 141 so as to move up and down along with the punch 141. The material of the mounting member 142 may be, for example, wood, plastic, metal, or any other suitable material.

As shown in FIGS. 1A and 1B, the open-type cutter 140 a may be attached to the mounting member 142. The open-type cutter 140a includes a first cutter 143 and two second cutters 144. The mounting member 142 has a first holder 142r1 and two second holders 142r2. The first cutter 143 is mounted in the first holder 142r1 of the mounting member 142 and extends along the first direction S2. Each of the second cutters 144 is mounted in the corresponding second holder 142r2 and extends along the second direction S3. The two second cutters 144 are arranged along the first direction S2. The first direction S2 and the second direction S3 are substantially perpendicular to each other. In the present embodiment, the second direction S3 and the transport direction S1 may be substantially the same.

The open type cutter 140a has at least one open type opening. The open aperture 140b corresponds to or aligns with one side (eg, side) of the optical film that is later cut. For example, the first cutter 143 and the two second cutters 144 are stretched to have a U-shape. The U-shaped opening corresponds or aligns with one side (eg, the side) of the optical film that is later cut. In one embodiment, the ends of the first cutter 143 and the second cutter 144 are connected. That is, the cutter connected to the first cutter 143 is connected to the first cutter 143 at its end portion, but does not intersect with the first cutter 143.

As shown in FIG. 1A, a part of the first cutter 143 is fixed (for example, tight fit) in the first holder 142r1 and the other part projects from the first holder 142r1. In one embodiment, the length L1 of the first cutter 143 protruding from the mounting member 142 is about 6 mm to about 10 mm. The relationship between the second cutter 144 and the second notch 142r2 is similar to the relationship between the first cutter 143 and the first notch 142r1 and will not be repeated here.

As shown in FIGS. 1A and 1B, when the supply mechanism 110 releases the wound optical film 10, the transport mechanism 120 pulls the wound optical film 10 located above it and advances in the transport direction S1. Can be made. The feeding mechanism 110 fixes the wound optical film 10 by the time the wound optical film 10 reaches below the first cutter 143 of the cutout die 140. As shown in FIG. 1B, the length L2 of the first cutter 143 in the first direction S2 is larger than the width L3 of the wound optical film 10 in the first direction S2. Accordingly, after the cutting die 140 cuts the wound optical film 10, the first cutter 143 can completely cut the wound optical film 10 along the first direction S2.

In one embodiment, the cutting die 140 cuts off the release film 10a, the polarizing film 10b, and the surface protective film 10c of the optical film 10 which are wound in order. That is, in this embodiment, in the mold release film 10a, the polarizing film 10b, and the surface protection film 10c, the mold release film 10a is closest to the cutout mold 140, and therefore the cutout mold 140 cuts out the mold release film 10a first. In another embodiment, the surface protection film 10c, the polarizing film 10b, and the release film 10a of the optical film 10 on which the cutting die 140 is sequentially wound may be cut off.

Subsequently, as shown in FIGS. 2A and 2B, the cutting die 140 moves in the cutting direction S4, and the first cutting is performed on the wound optical film 10. Among them, the first cutter 143 of the cut-out die 140 cuts the wound optical film 10 and cuts the alignment cut 10e1 of the wound optical film 10. The alignment cut 10e1 is the first side 11e1 (the first side 11e1 is shown in FIG. 4B) of the optical film 11 (the optical film 11 is shown in FIG. 4B) that is cut off later. That is, the alignment cut 10e1 and the first side 11e1 are the same side. As shown in FIG. 2B, a finished product intermediate waste 10′ may be generated after the first cutting. In the present embodiment, the cutting by the cutting die 140 according to the present invention may simultaneously generate the waste 10″ of two sapwood. In another embodiment, the first cutting (i.e., omitting the procedure shown in FIGS. 1A-2B) may be omitted. This makes it possible to avoid the generation of wastes 10' and 10''.

Subsequently, as shown in FIGS. 3A and 3B, after the cutting die 140 moves upward and separates from the wound optical film 10, the supply mechanism 110 releases the wound optical film 10 and the transport mechanism. The optical film 10 on which 120 is wound is pulled and continuously advanced in the transport direction S1. The feeding mechanism 110 fixes the wound optical film 10 until the wound optical film 10 reaches below the first cutter 143 and the second cutter 144.

Subsequently, as shown in FIGS. 4A and 4B, the cutting die 140 moves in the cutting direction S4, and the optical film 10 wound so as to form the optical film 11 is cut a second time. Among them, the optical film 11 has a first side 11e1 and a second side 11e2 that face each other. The first side 11e1 is the alignment cut formed in the previous cutting (that is, the alignment cut 10e1 shown in FIG. 2B), and the second side 11e2 is formed in the current cutting. It is a thing. In this step, the first cutter 143 of the cutting die 140 cut out the second side 11e2 of the optical film 11 and cut out a new alignment cut 10e1 of the wound optical film 10. The new alignment cut 10e1 is one side of the optical film 12 (optical film 12 is shown in FIG. 6B) to be cut next time. In other words, the positioning cut 10e1 of the wound optical film 10 cut this time and one side of the optical film cut next time are the same side.

Further, as shown in FIG. 4B, the length L4 of each second cutter 144 in the second direction S3 determines the length of the side of the cut optical film 11. For example, as the length L4 of the second cutter 144 is longer, the optical film 11 having longer sides can be cut off. As shown in FIG. 4B, the cut optical film 11 has a third side 11e3 and a fourth side 11e4 that face each other. The length L5 of the third side 11e3 and the fourth side 11e4 is substantially equal to the length L4 of the second cutter 144. In another embodiment, the distance between the alignment cut 10e1 and the end of the second cutter 144 shown in FIG. 3B depends on the length of the cut third side 11e3 and fourth side 11e4. The length L5 may be smaller than the length L4 of the second cutter 144. In other words, the length L4 of the second cutter 144 in the second direction S3 is greater than or substantially equal to the length of the side of the cut optical film 11 in the second direction S3.

Subsequently, as shown in FIGS. 5A and 5B, after the cutting die 140 moves upward and separates from the wound optical film 10, the supply mechanism 110 releases the wound optical film 10 and conveys it. The mechanism 120 pulls the wound optical film 10 to continuously advance it in the transport direction S1. The feeding mechanism 110 fixes the wound optical film 10 by the time the wound optical film 10 reaches below the first cutter 143 and the second cutter 144.

Subsequently, as shown in FIGS. 6A and 6B, the cutting die 140 moves in the cutting direction S4 and performs the third cutting on the wound optical film 10 so as to form the optical film 12. The optical film 12 has a first side 12e1 and a second side 12e2 that face each other. The first side 12e1 is a positioning cut (that is, the positioning cut 10e1 shown in FIG. 4B) formed during the previous cutting, and the second side 12e2 is formed by this cutting. In this step, the first cutter 143 of the cutting die 140 cuts the second side 12e2 of the optical film 12 and the new alignment cut 10e1 of the wound optical film 10. The new alignment cut 10e1 is the same side as one side of the optical film to be cut next time.

As can be seen from FIGS. 4B and 6B, in the two cutting processes, the alignment cut of the wound optical film that was cut last time is one side of the optical film that is cut next time. Waste can be reduced. As can be seen from FIGS. 2B, 4B, and 6B, in the cutting method in the embodiment according to the present invention, all the cuts thereafter except a large amount of waste 10′ due to the first cutting are performed by a plurality of optical plates. It reduces the amount of waste between films, or even produces no waste between multiple optical films. Compared to the conventional cutting method, in the cutting method according to the embodiment of the present invention, if the number of times of cutting is large, the amount of waste between the optical films generated is small, or the waste is not generated at all. In another example, before the first cutting, if the starting side 10e′ of the rolled optical film 10 (shown in FIG. 1B) meets the geometrical requirements of the subsequently cut optical film, FIG. The cutting steps shown in FIGS. 1A-2B may be omitted and the cutting steps shown in FIGS.

In another embodiment, after the step shown in FIG. 6B, subsequently, the wound optical film 10 is cut more times in a similar or similar manner (step shown in FIGS. 5A to 6B). May be. You can get more optical film, reduce waste, and reduce waste generation as you protect the environment.

FIG. 7 is a top view of a cutting die 140' according to another embodiment of the present invention. The cut-out die 140' includes a punch 141 (not shown), a mounting member 142 and an open type cutter 140a'. The open type cutter 140a' has a structure similar to that of the open type cutter 140a. The difference is that the length L2 of the first cutter 143 of the open type cutter 140a′ in the first direction S2 is smaller than the width L3 of the wound optical film 10 in the first direction S2. Therefore, the sap waste 10'' is not completely cut. The recovery of the sap waste 10'' is convenient because the sap waste 10'' cut by the second cutter 144 can maintain one continuous strip in multiple cuts. As shown, the clipping device 100 further includes two recovery wheels 150. The two collection wheels 150 respectively wind and collect the waste 10″ of the two sapwood so as to contribute to later disposal or reuse. Similar to the cutting method of the above-described embodiment, in the cutting method according to the present embodiment, except for a large amount of waste 10′ from the first cutting, all subsequent cutting is performed between a plurality of optical films. It reduces the amount of waste, or even produces no waste between multiple optical films.

In the cutting method according to the above-described embodiment, one optical film is cut every time, but an open type cutter having a different design may cut a plurality of optical films every time. An example is given below.

FIG. 8 is a top view of a cutout mold 240 according to another embodiment of the present invention. The cut-out die 240 includes a punch 141 (not shown), a mounting member 142, and an open type cutter 240a. The open-type cutter 240a includes a first cutter 143, two second cutters 244 and a third cutter 245. Of these, the third cutter 245 and the first cutter 143 are arranged along the second direction S3. The second cutters 244 extend along the second direction S3 and are arranged along the first direction S2. As shown in the figure, the open type cutter 240a is formed so as to surround the opening 240b. The opening 240b corresponds to or is aligned with one side of the cut optical film 11.

Each second cutter 244 may include multiple cutters. For example, each of the second cutters 244 includes a plurality of first sub cutters 2441 and second sub cutters 2442 arranged in a straight line along the second direction S3. Among them, the first sub-cutter 2441 extends between the first cutter 143 and the third cutter 245, and the second sub-cutter 2442 extends from the third cutter 245 in a direction away from the first cutter 143. It extends and protrudes from the third cutter 245.

Depending on the arrangement of the first cutter 143, the two second cutters 244, and the third cutter 245, it is possible to cut out the two optical films 11 arranged along the second direction S3 by cutting once. You can

As described in the above embodiment, one side 10e1 of the wound optical film 10 cut this time is used as a positioning cut for the next cutting, so that two optical films 11 are cut each time thereafter. Continuous cuts can be made. In this embodiment, two optical films 11 are cut out at once at the same time, and no waste is generated between the two optical films 11 and the next cutting of the two optical films 11. .. As in the above-described embodiment, the length of the first cutter 143 and the third cutter 245 in the first direction S2 is larger than the width of the wound optical film 10 in the first direction S2, or May be smaller.

In one embodiment, the length of the second sub-cutter 2442 in the second direction S3 is greater than or substantially equal to the side length of the cut optical film 11 in the second direction S3, and/or The length of the first sub-cutter 2441 in the second direction S3 is substantially equal to the length of the side of the cut optical film 11 in the second direction S3.

FIG. 9 is a top view of the cut-out die 340 according to another embodiment of the present invention. The cut-out die 340 includes a punch 141 (not shown), a mounting member 142, and an open type cutter 340a. The open-type cutter 340a includes a first cutter 143 and a plurality of second cutters 144. The second cutters 144 extend from the first cutter 143 along the second direction S3 and are arranged along the first direction S2. Depending on the arrangement of the first cutter 143 and the second cutters 144, the plurality of optical films 11 arranged along the first direction S2 can be cut out by one cutting. As shown in the figure, the open-type cutter 340a is formed so as to surround the plurality of openings 340b. Each opening 340b corresponds to or is aligned with one side of the cut optical film 11.

As described in the above embodiment, one side 10e1 of the wound optical film 10 cut this time is used as a positioning cut for the next cutting, and therefore, a plurality of optical films 11 are continuously cut every time after that. It can be cut. In this embodiment, the plurality of optical films 11 are cut out at once at the same time, and no waste is generated between the plurality of optical films 11 and before the next cutting of the plurality of optical films 11. Note that, as in the above-described embodiment, the length of the first cutter 143 in the first direction S2 may be larger or smaller than the width of the wound optical film 10 in the first direction S2.

In one embodiment, the length of the second cutter 144 in the second direction S3 is greater than or substantially equal to the length of the side of the cut optical film 11 in the second direction S3.

FIG. 10 is a top view of the cut-out die 440 according to another embodiment of the present invention. The cut-out die 440 includes a punch 141 (not shown), a mounting member 142, and an open-type cutter 440a. The open-type cutter 440a includes a first cutter 143, a plurality of second cutters 244 and a plurality of third cutters 245. The first cutters 143 and the third cutters 245 thereof extend along the first direction S2 and are arranged along the second direction S3. The second cutters 244 extend along the second direction S3 and are arranged along the first direction S2.

In one embodiment, the lengths of the first cutter 143 and the third cutter 245 in the first direction S2 are greater than or substantially equal to the width of the rolled optical film 10 in the first direction S2. May be. In another embodiment, the length of the first cutter 143 and the third cutter 245 in the first direction S2 may be smaller than the width of the wound optical film 10 in the first direction S2. In another embodiment, the lengths of the first cutter 143 and the third cutter 245 in the first direction S2 may be different. For example, the length of the first cutter 143 in the first direction S2 is greater than the width of the wound optical film 10 in the first direction S2, but the length of the third cutter 245 in the first direction S2. The width is smaller than the width of the wound optical film 10 in the first direction S2.

Each second cutter 244 may include multiple cutters. For example, each of the second cutters 244 includes a plurality of first sub cutters 2441, second sub cutters 2442 and third sub cutters 2443 which are arranged in a straight line along the second direction S3. Among them, the first sub cutter 2441 extends between the first cutter 143 and the third cutter 245, and the third sub cutter 2443 extends between the two third cutters 245. The second sub-cutter 2442 extends from the leftmost third cutter 245 in a direction away from the first cutter 143.

Depending on the arrangement of the first cutters 143, the second cutters 244, and the third cutters 245, it is possible to cut out the plurality of optical films 11 arranged in the array by one cutting.

As described in the above embodiment, one side 10e1 of the optical film 10 that is cut and wound this time is used as a positioning cut for the next cutting, and therefore, a plurality of continuous optical films 11 are continuously used. It can be cut. In this embodiment, the plurality of optical films 11 are cut out at once at the same time, and no waste is generated between the plurality of optical films 11 and before the next cutting of the plurality of optical films 11.

In one embodiment, the length of the second sub-cutter 2442 in the second direction S3 is greater than or substantially equal to the length of the side of the cut optical film 11 in the second direction S3. The length of the first sub cutter 2441 in the second direction S3 is substantially equal to the length of the side of the cut optical film 11 in the second direction S3. And/or the length of the third sub-cutter 2443 in the second direction S3 is substantially equal to the length of the side of the cut optical film 11 in the second direction S3.

FIG. 11 is a top view of a cut-out die 440' according to another embodiment of the present invention. The cutting die 440' includes a punch 141 (not shown), a mounting member 142, and an open type cutter 440a'. The open-type cutter 440a′ includes a first cutter 143, a plurality of second cutters 244, a plurality of third cutters 245 and a plurality of fourth cutters 446. The difference from the cutting die 440 according to the above-described embodiment is that the cutting die 440 ′ according to the present embodiment further includes a fourth cutter 446. The fourth cutter 446 extends along the second direction S3. As shown, the first cutters 143, their second cutters 244, their third cutters 245 are aligned with their fourth cutters 446 in an array. In this embodiment, the cutting die 440' can be designed to simultaneously cut a plurality of optical films having at least two different areas and/or different shapes, depending on the actual needs.

As described in the above-mentioned embodiment, one side 10e1 of the wound optical film 10 cut this time is used as a positioning cut for the next cutting, and therefore a plurality of optical films 11 are continued each time thereafter. You can make a targeted cut. In this embodiment, a plurality of optical films 11 are cut out at once at the same time, and no waste is generated between the plurality of optical films 11 and before cutting out the plurality of optical films 11 next time.

In short, the plurality of cutters of cut-out die 440 can be arranged to form at least one closed shape and at least one open opening. After cutting the rolled optical film 10, at least two optical films are formed in the area corresponding to the at least one closed shape and the at least one open opening. Of which, the open aperture corresponds or is aligned with the corresponding optical film. The at least one closed shape and the at least one open aperture can be arranged in an nxm array so as to cut an nxm array of optical film in a single cut. Here, n and m are positive integers greater than 1, and the values of n and m may be the same or different. In one embodiment, the area area and/or shape of the at least one closed shape and the at least one open opening may be the same or different. In one embodiment, in a cutter that encloses a closed shape, the length of the cutter that extends along the second direction S3 is approximately equal to the length of the corresponding side of the cut optical film 11 that encloses the open aperture. In the cutter, the length of the cutter extending along the second direction S3 may be approximately equal to or longer than the length of the corresponding side of the cut optical film 11.

FIG. 12 is a top view of a cutting die 540 according to another embodiment of the present invention. The cut-out die 540 includes a punch 141 (not shown), a mounting member 142 and an open type cutter 340a. Compared with the cut-out die 340 shown in FIG. 9, the open-type cutter 340a according to the present embodiment is arranged along the inclination direction. Therefore, it is possible to cut out a plurality of optical films 11 arranged in the tilt direction by cutting once. As the inclination direction here, for example, an acute angle such as 45 degrees may be formed between the first cutter 143 and the first direction S2 or the second direction S3, but it is not limited thereto. In one embodiment, both ends of the first cutter 143 project from the optical film 11. As described in the above embodiment, one side 10e1 of the wound optical film 10 that is cut this time is used as a positioning cut for the next cutting, and therefore a plurality of optical films 11 are continued each time thereafter. You can make a targeted cut. In this embodiment, the plurality of optical films 11 are cut out at once at the same time, and no waste is generated between the plurality of optical films 11 and before the next cutting of the plurality of optical films 11.

FIG. 13 is a top view of a cutting die 640 according to another embodiment of the present invention. The cut-out die 640 includes a punch 141 (not shown), a mounting member 142, and an open-type cutter 640a. The open-type cutter 640a includes a first cutter 143, a plurality of second cutters 244 and a plurality of third cutters 245. Compared to the cut-out die 440 shown in FIG. 10, the first cutter 143, the second cutters 244 and the third cutters 245 according to the present embodiment are arranged along the inclination direction. Therefore, it is possible to cut out the optical films 11 arranged in a plurality of tilt directions by cutting once. As the inclination direction, for example, an acute angle such as 45 degrees may be formed between the first cutter 143 and the first direction S2 or the second direction S3, but the invention is not limited to this. In one embodiment, both ends of the first cutter 143 project from the optical film 11.

As described in the above embodiment, one side 10e1 of the wound optical film 10 that is cut this time is used as a positioning cut for the next cutting, and therefore, a plurality of optical films 11 are continuously cut each time thereafter. It can be cut. In this embodiment, the plurality of optical films 11 are cut out at once at the same time, and no waste is generated between the plurality of optical films 11 and before the next cutting of the plurality of optical films 11. As can be seen from FIGS. 8 to 13, the open type cutter according to the embodiment of the present invention includes a plurality of cutters. The cutters may be enclosed or lined up to form at least one closed shape and at least one open opening. After cutting the rolled optical film 10, at least one optical film is formed in the areas corresponding to the closed and open openings. Of which, the open aperture corresponds or is aligned with the corresponding optical film.

As shown in FIGS. 14A and 14B, FIG. 14A is a bottom view of a cutting die 740 according to another embodiment of the present invention, and FIG. 14B is a side view of the cutting die 740 shown in FIG. 14A.

The cut-out die 740 includes a punch 141 (not shown), a mounting member 742 and an open type cutter 140a. The open-type cutter 140a includes a first cutter 143 and a second cutter 144. The mounting member 742 has at least one air flow channel 742c. The airflow channel 742c extends from the side surface 742s of the mounting member 742 into the mounting member 742, and extends to the lower surface 742b of the mounting member 742. The airflow channel 742c exposes the airflow inlet 742p1 at the side surface 742s and exposes the airflow outlet 742p2 at the lower surface 742b. The direction of the airflow outlet 742p2 is substantially the same as the cutting direction S4 (the cutting direction S4 is shown in FIG. 2B), and the direction of the airflow inlet 742p1 is substantially perpendicular to the direction of the airflow outlet 742p2. In the cutting process, an air flow (not shown) enters from the air flow inlet 742p1 and flows out from the air flow outlet 742p2. Since the airflow that has flowed out presses the wound optical film 10, warping of the wound optical film 10 can be avoided, and the dimensional accuracy of the cut optical film 11 is improved.

As shown in FIG. 14A, the closer the airflow outlet 742p2 is to the end portion of the second cutter 144, the better the effect of pressing the wound optical film 10 is. As shown in the figure, since the holder is not opened and the cutter is not arranged in the portion between the side surface 742s of the mounting member 742 and the first cutter 143, the airflow channel 742c is not obstructed by the cutter or the holder, It can be freely stretched between the 742s and the first cutter 143.

FIG. 15 is a bottom view of a cut-out die 840 according to another embodiment of the present invention. The cut-out die 840 includes a punch 141 (not shown), a mounting member 842, and an open-type cutter 140a. The mounting member 842 includes at least one lubrication passage 842c, a first holder 842r1, two second holders 842r2, and a lubricating liquid storage portion 8421. The first cutter 143 and the second cutter 144 of the open-type cutter 140a are arranged in the first holder 842r1 and the second holder 842r2 of the mounting member 842, respectively. Each lubricating passage 842c connects the corresponding holder (first holder 842r1 or second holder 842r2) and the lubricating liquid storage portion 8421. The lubricating liquid storage portion 8421 is used to store a lubricating liquid (not shown). The lubricating liquid lubricates the first cutter 143 and the second cutter 144 through the lubrication passage 842c, the first holder 842r1 and the second holder 842r2. Lubricate the cutting edge of the cutter to better separate the cut optical film from the cutter.

It should be noted that in another embodiment, the cutout mold 840 further includes an airflow channel 742c of the cutout mold 740. It should be noted that in another embodiment, the cutting die 840 may include a die design according to other embodiments of the present invention.

FIG. 16 is a bottom view of a cutout mold 940 according to another embodiment of the present invention. The cut-out die 940 includes a punch 141 (not shown), a mounting member 942 and an open type cutter 140a. The mounting member 942 has at least a lubrication passage 842c, a first holder 842r1 and two second holders 842r2. The difference from the mounting member 842 is that the lubricating passage 842c of the mounting member 942 in this embodiment extends to the outer surface (eg, the side surface 942s) of the mounting member 942, and the inlet 942p1 is exposed at the outer surface. Is. The inlet 942p1 can be connected to an external lubricating liquid supplier 941. The lubricating liquid supplier 941 supplies a lubricating liquid (not shown), and passes through an inlet 942p1, a lubricating passage 842c, and a holder (first holder 842r1 and two second holders 842r2) and a cutter (first holder). The cutting edges of the first cutter 143 and the second cutter 144) can be lubricated.

In another embodiment, the cutting die 940 may further include the airflow channel 742c of the cutting die 740.

In one embodiment, the lubricating fluid material may include water, alcohols, ketones, ethers, esters, aliphatics, aromatic hydrocarbons, halogenated hydrocarbons, amides, cellosolves, silicon oxides, and the like. Good. For example, 2-butanol, isopropanol, glycerol, ethylene glycol, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, diethyl ether, tetrahydrofuran, dioxane, anisole, ethyl acetate, butyl acetate, toluene, xylene, methylene chloride, dichloroethane, dimethylformamide, etc. It may be methyl cellosolve or silicone. These materials may be used alone or in combination of two or more kinds.

Although the open type cutter according to the above-described embodiment has been described by taking the one including three or more cutters as an example, the embodiment of the present invention is not limited to this. The cutter of the open cutter is exemplified below as an open aperture that is L-shaped or of continuous extension.

FIG. 17 is a top view of a cutting die 1040 according to another embodiment of the present invention. The cut-out die 1040 includes a punch 141 (not shown), a mounting member 142 and an open type cutter 1040a. Unlike the open-type cutter 140a, the open-type cutter 1040a according to the present embodiment has two cutters, for example, the first cutter 143 and one second cutter 144. The first cutter 143 and the second cutter 144 are connected so as to form an L shape. The first cutter 143 and the second cutter 144 form two sides of a quadrangle. The two openings 1040b of the open-type cutter 1040a form the other two sides of the quadrangle, respectively. After being designed as such, the wound optical film 10 is cut out to form the optical film 11, and two sides of the cut optical film 11 correspond to the two openings 1040b of the open-type cutter 1040a, respectively. Aligned. As shown in the figure, after cutting, one side of the optical film 11 (for example, the first side 11e1) and the alignment cut 10e1 of the wound optical film 10 before cutting (for example, as shown in FIG. 4B, ) Are the same side. The other side (for example, the third side 11e3) of the optical film 11 and the second side 10e2 of the wound optical film 10 are the same side.

The second side 10e2 and the alignment cut 10e1 of the wound optical film 10 may be substantially vertical. In one embodiment, the cutting method can be applied to the second side 10e2 of the wound optical film 10 before the first cutting. For example, the third side 11e3 of the optical film 11 that is cut later is flattened by a cutter or a laser so that the side is smooth. In the present embodiment, the cutting method for cutting the wound optical film 10 to form the optical film 11 is similar to or similar to that in the above-described embodiment, and therefore, it will not be repeated here.

FIG. 18 is a top view of the cut-out die 1140 according to another embodiment of the present invention. The cut-out die 1140 includes a punch 141 (not shown), a mounting member 142, and an open-type cutter 1140a. The open type cutter 1140a forms a pentagon, and the opening 1140b of the open type cutter 1140a and its five sides are combined to form a hexagon. The opening 1140b of the open-type cutter 1140a corresponds to or is aligned with the third side 11e3 of the cut optical film 11. In one embodiment, the cutting method can be applied to the second side 10e2 of the wound optical film 10 before the first cutting. For example, the third side 11e3 of the optical film 11 that is cut later is flattened by a cutter or a laser so that the side is smooth.

FIG. 19 is a top view of a cutout die 1240 according to another embodiment of the present invention. The cutout die 1240 includes a punch 141 (not shown), a mounting member 142, and an open type cutter 1240a. The open type cutter 1240a is a notched circle. The side of the cutout is the opening 1240b. The opening 1240b corresponds to or is aligned with the third side 11e3 of the cut optical film 11. In one embodiment, before the first cutting, the second side 10e2 of the wound optical film 10 is flattened by a cutting method, and the third side 11e3 of the optical film 11 to be cut later is smooth. Make it the edge. In one embodiment, open cutter 1240a is a non-rectangular cutter with notches or straight sides. The shape is, for example, an elliptical shape, a fan shape, a barrel shape, a heart shape, or the like.

FIG. 20 is a schematic view of a supply mechanism 110′ according to another embodiment of the present invention. The feeding mechanism 110 ′ may include or further include a first nip roll 112, a dancer roll 113, and a second nip roll 114. Among them, the first nip roll 112 and the second nip roll 114 are arranged in pairs. The dancer roll 113 and the second nip roll 114 are sequentially located between the first nip roll 112 and the coil wheel 111. In this embodiment, the traveling length of the wound optical film 10 can be adjusted by the first nip roll 112. For example, in the process of releasing the optical film 10 in which the coil wheel 111 is continuously wound by driving the second nip roll 114, the position of the dancer roll 113 is lowered and the rotation of the first nip roll 112 is stopped. In this case, the length of the stock of the wound optical film 10 can be increased. By driving the second nip roll 114, the coil wheel 111 releases the continuously wound optical film 10 to rotate the first nip roll 112. Therefore, the wound optical film 10 advances in the transport direction S1 and raises the position of the dancer roll 113. Therefore, due to the design of the dancer roll 113, since there is a buffer region in the progress of the wound optical film 10, it is possible to adjust the progress length of the flexible wound optical film 10.

In one embodiment, the dancer roll 113 can adjust the tension of the wound optical film 10. Although not shown in the drawing, the control of the roll can be realized by the controller 130. In a kind of exercise system, as shown in FIG. 20, the dancer roll 113 can be vertically and vertically moved so as to adjust the tension of the wound optical film 10. The supply mechanism 110′ may further include a tension detector (not shown). The tension value of the wound optical film 10 is detected by arranging it on any roll that is in contact with the wound optical film 10 and fed back to the controller 130, and the controller 130 causes the dancer roll 113 (drive Control the movement of the).

In another type of exercise method, the dancer roll 113 can change its position by rotating left and right. Similarly, the tension of the wound optical film 10 can be adjusted. For the control mechanism, the feeding mechanism 110' may further include a rocker arm (not shown) and a driver (not shown). The rocker arm connects the dancer roll 113 and the driver. The controller 130 controls the driver to drive the rocker arm to swing and to drive the dancer roll 113 to swing left and right to change position.

The cutting method according to each of the above-described embodiments can be realized by the supply mechanism 110′ for controlling the wound optical film 10.

21 to 26B are views showing a cutting process of cutting the wound optical film 40 by the cutting device 200 according to another embodiment of the present invention.

First, as shown in FIG. 21, at least one optical film sheet 30 is provided. The optical film sheet 30 is formed by cutting out the wound optical film using any one of the above-mentioned cutout molds or other kinds of cutout molds (straight knife, circular knife, laser, etc.). As shown in the figure, the optical film sheet 30 includes a first release film 30a, a polarizing film 30b, and a second release film 30c, of which the polarizing film 30b includes the first release film 30a and the first release film 30a. It is located between the two release films 30d. Since the materials of the first release film 30a and the second release film 30c are similar to or similar to the release film 10a, the description thereof will not be repeated here. Since the material of the polarizing film 30b is similar or similar to that of the polarizing film 10b, it will not be repeated here.

Next, as shown in FIGS. 22A and 22B, FIG. 22A is a diagram in which the optical film sheet 30 shown in FIG. 21 is attached to the side surface of the wound optical film 40. 22B is a top view of FIG. 22A. As shown in the figure, a plurality of optical film sheets 30 can be attached onto the wound optical film 40. The second gap H2 between two adjacent optical film sheets 30 is 0 to 2 mm, but may be larger. After laminating, the axial angle of the optical film sheet 30 and the axial angle of the wound optical film 40 are not parallel or perpendicular to each other, but the embodiment of the present invention is not limited to this.

Before bonding, the release film (for example, the release film 30c) in the optical film sheet 30 can be removed so that the adhesive layer (not shown) of the polarizing film 30b is exposed. Then, the polarizing film 30b is bonded onto the wound optical film 40. The wound optical film 40 includes a functional layer 40a and a surface protective layer 40b. The polarizing film 30b of the optical film sheet 30 is attached, for example, on the functional layer 40a. The functional layer 40a has optical adjustment properties such as a brightness enhancement film, a reflection brightness enhancement film (Dual Brightness Enhancement Film, DBEF), an advanced polarizing film (Advanced Polarizer Film, APF), a retardation film, and a prism film. It may be a film layer that has. Since the material of the surface protective layer 40b is similar to or similar to that of the surface protective film 10c, it will not be repeated here.

Next, as shown in FIGS. 23A and 23B, FIG. 23A is a schematic diagram showing a cutting device 200 according to another embodiment of the present invention, and FIG. 23B is a top view of the cutting die 440″ shown in FIG. 23A. Is. The cutting device 200 includes a supply mechanism 110, a transport mechanism 120, a controller 130, and a cutting die 440″. The cutting die 440' includes a punch 141 (not shown), a mounting member 142, and an open type cutter 440a''. The open cutter 440 a ″ includes a first cutter 143, at least one second cutter 244, at least one third cutter 245 and an edge cutting cutter 443. The open type cutter 440a″ according to this embodiment is similar to the open type cutter 440a. The difference is that the open cutter 440a″ further includes an edge cutting cutter 443. The edge cutting cutter 443 extends along the first direction S2 and is arranged with the first cutter 143 along the second direction S3. For example, they are arranged adjacent to each other.

Since the first gap H1 between the edge cutting cutter 443 and the first cutter 143 is larger than the second gap H2, the second gap H2 between two adjacent optical film sheets 30 is completely the first gap H2. It comes to be located in the gap H1 (as shown in FIG. 25B). Then, in the subsequent cutting, the second gap H2 is completely cut off, that is, the second gap H2 cannot be left in the cut optical film 41. In one embodiment, the first gap H1 is about 2 mm to about 10 mm.

As shown in the figure, the supply mechanism 110 releases the wound optical film 40, and the transport mechanism 120 pulls the wound optical film 40 located above it to advance it in the transport direction S1. The feeding mechanism 110 fixes the wound optical film 40 until the wound optical film 40 and the optical film sheet 30 reach below the edge cutting cutter 443 of the cutout die 440″. As shown in FIG. 23B, the length L6 of the edge cutting cutter 443 in the first direction S2 is larger than the width L7 of the wound optical film 40 in the first direction S2. Therefore, after cutting the optical film 40 and the optical film sheet 30 around which the cutout die 440″ is wound, the edge cutting cutter 443 is configured to rotate the optical film 40 and the optical film sheet along the first direction S2. 30 can be cut completely.

Subsequently, as shown in FIGS. 24A and 24B, the cutting die 440″ moves in the cutting direction S4, and performs the first cutting on the wound optical film 40 and the optical film sheet 30. Among them, the edge cutting cutter 443 of the cut-out die 440 ″ cuts the wound optical film 40 and the optical film sheet 30, and positions the cut 40 e 1 for alignment of the wound optical film 40 and the optical film sheet 30. Cut out the cut 30e1 for alignment. The positioning cut 40e1 and the positioning cut 30e1 are the first side 41e1 (the first side 41e1 shown in FIG. 26B) of the cut optical film 41 (the optical film 41 is shown in FIG. 26B). is there. That is, the alignment cut 40e1 and the alignment cut 30e1 are the same sides as the first side 41e1.

Note that, as shown in FIG. 24B, the wound optical film 40 and the optical film sheet 30 that have been cut for the first time form intermediate wastes 40′ and 30′ between finished products, respectively. In another embodiment, the start side 40e′ of the wound optical film 40 shown in FIG. 22B and the start side 30e′ of the optical film sheet 30 are aligned, so the cutting step shown in FIGS. 23A to 24B is omitted. it can.

Subsequently, as shown in FIGS. 25A and 25B, after the cutting die 440 ″ moves upward and separates from the wound optical film 40, the supply mechanism 110 releases the wound optical film 40, The transport mechanism 120 pulls the wound optical film 40 to continuously advance it in the transport direction S1. By the time the wound optical film 40 reaches below the first cutter 143, the second cutter 244, the third cutter 245 and the edge cutting cutter 443, the feeding mechanism 110 moves the wound optical film 40. Fix it.

As shown, the second gap H2 between the two optical sheets 30 is located between the first cutter 143 and the first gap H1 of the edge cutting cutter 443. Therefore, at the time of subsequent cutting, the second gap H2 is completely cut off, or the optical film 41 (shown in FIG. 26B) where the second gap H2 is cut off and the cut wound optical film 40. Can not remain in.

Subsequently, as shown in FIGS. 26A and 26B, the cutting die 440″ moves in the cutting direction S4, and performs the second cutting on the wound optical film 40 and optical film sheet 30. Therefore, a plurality of optical films 41 are formed. Among them, the optical film 41 has the first side 41e1. The first side 41e1 is a positioning cut (that is, the positioning cut 40e1 shown in FIG. 24B) formed during the previous cutting.

In this step, the first cutter 143 of the cutout die 440″ cuts off the second side 41e2 of the optical film 41, and the edge cutting cutter 443 cuts the new alignment cut 40e1 and the new optical film 40. A new alignment cut 30e1 of the optical film sheet 30 was also cut out. The new alignment cuts 40e1 and 30e1 are one side of the optical film 41 to be cut next time. In other words, the positioning cuts 40e1 and 30e1 of the wound optical film 40 cut by the edge cutting cutter 443 this time are the same sides as one side of the optical film 41 cut next time.

Subsequently, by using the steps shown in FIGS. 25A to 26B, it is possible to continuously cut out more optical films 41 from the wound optical film 40 and optical film sheet 30.

The open type cutter 440a″ according to the present embodiment has been described by taking the combination of the open type cutter 440a and the edge cutting cutter 443 according to the above example as an example. The formula cutter 440a″ may be a combination of any one of the open cutters and the edge cutting cutter 443 described above.

As shown in FIG. 26B, the first cutter 143 may have the same length L6 as the edge cutting cutter 443 in the first direction S2, but may have a different length. In one embodiment, the length L6 of the edge cutting cutter 443 in the first direction S2 is greater than the distance L8 between the uppermost second cutter 244 and the lowermost second cutter 244, so that the next time It is possible to form the optical film 41 which is completely separated at the time of cutting. In one embodiment, the edge cutting cutter 443 and the first cutter 143 may be shorter than the width L7 of the wound optical film 40 in the first direction S2. Thus, similar to the embodiment shown in FIG. 7, waste material at the edges of the wrapped optical film 40 is continuously maintained after each cut. 27A and 27B, FIG. 27A is a bottom view of a cutting die 440′″ according to another embodiment of the present invention, and FIG. 27B is a side view of the cutting die 440″′ shown in FIG. 27A. Is.

The cut-out die 440′″ includes a punch 141 (not shown), a mounting member 442 and an open type cutter 440a″. The mounting member 442 includes at least one air flow channel 742c. The airflow channel 742c extends from the side surface 442s of the mounting member 442 to the inside of the mounting member 442, and extends to the lower surface 442b of the mounting member 442. The airflow channel 742c exposes the airflow inlet 742p1 at the side surface 442s and exposes the airflow outlet 742p2 at the lower surface 442b. Among them, the airflow outlet 742p2 is located between the first cutter 143 and the edge cutting cutter 443. The direction of the air flow outlet 742p2 is substantially the same as the cutting direction S4 (the cutting direction S4 is shown in FIG. 24A), and the direction of the air flow inlet 742p1 is substantially perpendicular to the direction of the air flow outlet 742p2.

In the process of cutting, the airflow G1 can enter from the airflow inlet 742p1 and flow out from the airflow outlet 742p2. Since the airflow outlet 742p2 is located between the first cutter 143 and the edge cutting cutter 443, the outflowing airflow presses the wound optical film 40 and the optical sheet 30 on both sides of the second gap H2. You can Therefore, the precision of cutting is improved. The airflow G1 may be provided by an airflow provider (not shown).

FIG. 28 is a top view of a cutting die 1340 according to another embodiment of the present invention. The cut-out die 1340 includes a punch 141 (not shown), a mounting member 142 and an open type cutter 1340a. The open type cutter 1340a has a configuration similar to that of the open type cutter 140a. The difference is that the open cutter 1340a further includes at least one cutting cutter 146 for cutting the waste 10''. As shown in the drawing, the two cutting cutters 146 extend along the first direction S2, and each of the two cutting cutters 146 of the optical film wound in a direction leaving the second cutter 144 from the two second cutters 144. Stretch to exceed the sides. Then, when the wound optical film 10 is cut out, the waste 10 ″ having a large area edge can be cut into a plurality of wastes having a small area. It will be easier to collect.

29A to 30B, there is shown a process of cutting the wound optical film 10 by the cutting device 300 according to another embodiment of the present invention. 29A is a schematic view of a cutting device 300 according to another embodiment of the present invention, and FIG. 29B is a top view of the cutting die 140′ shown in FIG. 29A. 30A and 30B are schematic diagrams of cutting out the optical film 10 around which the cutting-out die 140′ is wound.

The cutting device 300 includes a supply mechanism 110, a transport mechanism 120, a controller 130, a cutting die 140′, a first edge material collecting device 310, and a second edge material collecting device 320. The cutting die 140' includes a punch 141, a mounting member 142, and an open type cutter 140a'.

The first edge material recovery device 310 applies the first edge F10 along the first recovery direction S5 so as to apply the first tensile force F1 to the first edge material 10A along the first recovery direction S5. The material 10A is wound. The second edge material recovery device 320 applies a second tensile force F2 to the second edge material 10B along the second recovery direction S6 so as to apply a second edge along the second recovery direction S6. Wind material 10B. Since the first recovery direction S5 and the second recovery direction S6 are not parallel, the first pulling force F1 in the first recovery direction S5 generates the first component force F11 (side component force), The second pulling force F2 in the second collecting direction S6 generates the second component force F21 (side face component force). The first component force F11 and the second component force F21 can flatten the alignment cut 10e1 of the wound optical film 10n. For example, the first component force F11 and the second component force F21 cause the alignment cut 10e1 to have two long sides (for example, the second side 10e2) facing each other that are substantially perpendicular to the wound optical film 10. And flatten to the opposite side 10e3).

In the present embodiment, between the first collecting direction S5 and the second collecting direction S6 (or the first collecting direction S5) so as to achieve the effect of flattening the alignment cut 10e1 of the wound optical film 10. The included angle A1 between the edge material 10A and the second edge material 10B) is approximately between 1 and 80 degrees, preferably the included angle A1 is between 45 and 65 degrees.

In the present embodiment, the included angle A11 between the first collecting direction S5 and the carrying direction S1 is between about 1 degree and about 40 degrees, and/or the included angle A12 between the second collecting direction S6 and the carrying direction S1. May be between about 1 degree and about 40 degrees. In one embodiment, the included angle A11 and the included angle A12 may be the same or different.

In this embodiment, the first pulling force F1 and the second pulling force F2 may be the same or different. In this example, the first pulling force F1 and/or the second pulling force F2 is between about 2 kilograms and about 7 kilograms.

As shown in FIG. 29B, according to the design of the first edge material recovery device 310 and the second edge material recovery device 320, the originally not flat alignment cut 10e1′ is flattened, for example. can do. Among them, the reason why the alignment cut 10e1′ is not flat is, for example, when the wound optical film 10 is a wound flexible film and therefore there is no action due to the pulling force to the outside, it is wound. In addition, the tip of the optical film 10 may be deformed like a protrusion, a wrinkle, or a wave, and an uneven alignment cut 10e1' is formed, which affects the subsequent cutting operation.

As shown in FIG. 29B, the first edge material recovery device 310 includes a first recovery wheel 150A and a first driver 311. The first driver 311 is connected to the first recovery wheel 150A, drives the first recovery wheel 150A to rotate, and thus winds the first edge material 10A. Similarly, the second edge material recovery device 320 includes a second recovery wheel 150B and a second driver 321. The second driver 321 is connected to the second recovery wheel 150B and drives the second recovery wheel 150B to rotate, thus winding the second edge material 10B. The first pulling force F1 and the second pulling force F2 may be forces exerted on the wound optical film 10 while the recovery wheel 150 is rotating. Alternatively, the first driver 311 itself and the second driver 321 themselves are displaced in the first recovery direction S5 and the second recovery direction S6, respectively, and the first edge material 10A and the second edge, respectively. A first tensile force F1 and a second tensile force F2 are applied to the material 10B. Alternatively, the first driver 311 drives the first recovery wheel 150A so as to be displaced along the first recovery direction S5, applies the first pulling force F1 to the first recovery wheel 150A, Further, the second driver 321 drives the second recovery wheel 150B so as to be displaced along the second recovery direction S6, and applies the second pulling force F2 to the second recovery wheel 150B.

In another embodiment, the first recovery wheel 150A and the first driver 311 simultaneously apply the first pulling force F1 to the first edge material 10A and/or the second recovery wheel 150B. And the second driver 321 simultaneously applies a second pulling force F2 to the second edge material 10B. Adjusting the magnitude of the pulling force by controlling the rotation speed of the recovery wheel and/or controlling the displacement of the driver, for alignment with a flattened alignment cut 10e1 or an expected profile The break 10e1 can be acquired.

As shown in FIGS. 30A and 30B, the cut-out die 140′ is displaced in the cutting direction S4 and cuts the wound optical film 10 to form the optical film 11. Among them, the optical film 11 has a first side 11e1 and a second side 11e2 that face each other. The first side 11e1 is the flattened alignment cut 10e1 shown in FIG. 29B, and the second side 11e2 is the one formed by this cutting. As shown in the figure, since the alignment cut 10e1 has already been flattened, the alignment cut 10e1 may be used as the first side 11e1 of the optical film 11 to be subsequently cut, and it is not necessary to separately flatten it. Absent. This can reduce the amount of waste generated.

The cutting device 300 can cut the wound optical film 40 shown in FIG. 22B. Similar to the principle described above, the first edge material recovery device 310 and the second edge material recovery device 320 can flatten the alignment cut of the wound optical film 40. As described above, the second gap H2 between the two adjacent optical film sheets 30 attached to the wound optical film 40 may be smaller than 2 mm, and may be 0. Good. In this way, more optical film 41 can be cut from the same length of wound optical film 40, or the amount of waste of wound optical film 40 can be reduced.

With reference to FIG. 31, it is a schematic diagram which cuts off the optical film 10 by which the cutting device 300' was wound in another Example which concerns on this invention. The cutting device 300′ includes a supply mechanism 110 (not shown), a transport mechanism 120 (not shown), a controller 130 (not shown), a cutting die 140″, a first edge material recovery device 310, and a second edge material recovery device 310. An edge material recovery device 320 is included. The cut-out die 140 ″ includes a punch 141, a mounting member 142, and a closing cutter 20. The closing cutter 20 may be a known cutout type.

In the present embodiment, similar to or similar to the above principle, the first edge material recovery device 310 and the second edge material recovery device 320 may be used in a well-known cutout mold. That is, it may be used in a cut-out mold having no notch. In one embodiment, except for controlling the travel distance of the wound optical film 10 by fixing or releasing the wound optical film 10 using the first nip roll 112 of the supply mechanism 110, Using the first edge material recovery device 310 and the second edge material recovery device 320, the leading edge of the optical film 11 is controlled at the same time to more accurately control the quality of cutting, or the wound optical film 40. It is also possible to reduce the amount of waste.

32 is a schematic diagram showing a second edge material recovery device 320 in one example according to the present invention with reference to FIG. 32. In the present embodiment, the second edge material recovery device 320 further includes a first position adjusting member 322 and a second position adjusting member 323 which are arranged on the second recovery wheel 150B so as to face each other. The first position adjusting member 322 and/or the second position adjusting member 323 may be, for example, a circular plate, but may be a square or other geometric board. The second edge material 10B (not shown) may be restricted between the first position adjusting member 322 and the second position adjusting member 323. Therefore, the wound multiple layers of the second edge material 10B are locked by the first position adjusting member 322 and the second position adjusting member 323, and along the axial direction of the second recovery wheel 150B. Avoid shifting. As such, the stackability between the plurality of layers of the wound second edge material 10B is excellent, and in detail, the plurality of layers of the wound second edge material 10B is the same as the second collection wheel 150B. The layers are almost completely laminated in the radial direction.

In another embodiment, either the first position adjusting member 322 or the second position adjusting member 323 may be omitted. Note that the first edge material recovery device 310 may have a structure similar to or similar to the structure of the second edge material recovery device 320, and therefore will not be repeated here.

In short, the cut-out open cutter according to the embodiment of the present invention may include a plurality of cutters. In one embodiment, the cutters may be enclosed or lined up to provide an open aperture. After cutting the wound optical film, the optical film is cut in the area corresponding to the open aperture. The open aperture and one side of the optical film are corresponding or aligned. In another embodiment, the cutters may be enclosed or lined up so that they are at least one closed and at least one open aperture. After cutting the rolled optical film, a plurality of optical films are cut in the areas corresponding to the closed and open openings. The open aperture and the corresponding one side of the optical film are corresponding or aligned. It should be noted that the open aperture can have one or more than one aperture. Regarding the shape, the open-ended opening may be a cutter having an opening such as a polygonal cutter, a notched circular cutter, and an L-shaped cutter. For L-shaped cutters, open cutters have two side openings, each corresponding or aligned with two sides of the cut optical film. In another embodiment, one of the open cutters can make an alignment cut in the wrapped optical film. This alignment cut is the same side as one side of the optical film to be cut next time. Therefore, the amount of optical film waste can be reduced.

Thus, the above embodiments have disclosed the present invention as described above, but do not limit the present invention. A person having ordinary skill in the art to which the present invention belongs may make various changes and modifications without departing from the idea of the present invention. Accordingly, the protection scope of the present invention should be determined by the claims that follow.

10', 10'', 30', 40': Waste 10, 40: Wound optical film 10A: First edge material 10B: Second edge material 10a, 30a, 30c: Release film 10b, 30b: Polarizing films 10c, 40b: Surface protective films 10e', 40e', 30e': Starting sides 10e1, 10e1', 30e1, 40e1: Positioning cuts 10e3: Opposite sides 11, 12, 41: Optical films 11e1, 12e1. , 41e1: first side 11e2, 12e2, 10e2, 41e2: second side 11e3: third side 11e4: fourth side 20: closed cutter 30: optical film sheet 40a: functional layer 100, 200, 300 , 300′: cutting device 110, 110′: supply mechanism 111: coil wheel 112: first nip roll 113: dancer roll 114: second nip roll 120: transport mechanism 130: controller 140, 140′, 140″, 240 340, 440, 440', 440'', 440''', 540, 640, 740, 840, 940, 1040, 1140, 1240, 1340: Cutting dies 140a, 140a', 240a, 340a, 440a, 440a'. 440a'', 640a, 1040a, 1140a, 1240a, 1340a: open type cutters 140b, 240b, 340b, 440b, 1040b, 1140b, 1240b: openings 141: punches 142, 442, 742, 842, 942: mounting member 142r1. , 842r1: first holder 142r2, 842r2: second holder 143: first cutter 144, 244: second cutter 146: cutting cutters 150, 150A, 150B: recovery wheel 2441: first sub-cutter 2442: Second sub-cutter 2443: Third sub-cutter 245: Third cutter 310: First edge material recovery device 311: First driver 320: Second edge material recovery device 321: Second driver 322: 1st position adjusting member 323: 2nd position adjusting member 442b, 742b: Lower surface 442s, 742s, 942s: Side surface 443: Edge cutting cutter 446: 4th cutter 742c: Airflow channel 742p1: Airflow inlet 742p2: Airflow outlet 842c: Lubricating passage 8421: Lubricating liquid storage portion 941: Lubricating liquid supply device 942p1: Inlet A1, A11, A12: Inclusion angle F1: First pulling force F11: First component force F2: First pulling force F21 : Second component force G1 : Airflow L1, L2, L4, L5, L6, L8: Length L3, L7: Widths H1, H2: Gap S1: Conveying direction S2: First direction S3: Second direction S4: Cutting direction S5: First Collection direction S6: second collection direction

Claims (34)

A cut-out type for cutting the optical film,
A mounting member,
A first cutter mounted in the mounting member and extending along a first direction;
A second cutter mounted in the mounting member and extending along a second direction;
The first direction is perpendicular to the second direction,
The first cutter and the second cutter form at least one closed shape and at least one open-type opening so as to connect and surround each other;
The at least one closed form and the at least one open aperture are arranged to form an n×m array, where n and m are positive integers greater than 1 and n is the value of m. And/or the at least one closed shape and the at least one open aperture differ in area or shape,
A cut-out die that cuts the opening corresponding to one side of the optical film. The cutout according to claim 1, comprising a plurality of the second cutters, the plurality of second cutters being spaced apart from each other and being arranged along the first direction, each of which is connected to the first cutter. Die-cut. A cut-out type for cutting the optical film,
A mounting member,
A first cutter mounted in the mounting member and extending along a first direction;
A second cutter mounted in the mounting member and extending along a second direction;
Including
The first direction is perpendicular to the second direction,
The first cutter and the second cutter are connected to each other to form an opening to surround them,
The opening is cut corresponding to one side of the optical film,
Wherein the length in the first direction of the first cutter, the first direction definitive width larger than the optical film wound, switching preparative cutting die. The cutout according to any one of claims 1 to 3, wherein a length of the second cutter in the second direction is greater than or equal to a length of a side of the cut optical film in the second direction. Die-cut. Two of the second cutters arranged in the first direction,
A first cutter and a third cutter spaced apart from each other and arranged along the second direction,
The cutout according to any one of claims 1 to 3, wherein the two second cutters extend from the first cutter in a direction of the third cutter and protrude so as to extend beyond the third cutter. Die-cut. Each of the second cutters includes a first sub-cutter and a second sub-cutter arranged in a straight line along the second direction,
The first sub-cutter extends between the first cutter and the third cutter,
The second sub-cutter extends in a direction away from the first cutter from the third cutter,
The length of the second sub cutter in the second direction is greater than or equal to the length of the side of the cut optical film in the second direction, and/or the second length of the first sub cutter. The cutout die according to claim 5, wherein the length in the direction is equal to the length of the side of the cut optical film in the second direction. A cutout die for cutting out an optical film, wherein a plurality of optical film sheets are arranged in the optical film, and there is a second gap between two adjacent optical film sheets, and the cutout die is
A mounting member,
A first cutter attached to the mounting member and extending along a first direction;
A second cutter attached to the mounting member and extending along a second direction perpendicular to the first direction;
An edge cutting cutter arranged with the first cutter along the second direction, the first cutter and the edge cutting cutter having a first gap;
The first gap is larger than the second gap,
The first cutter and the second cutter are connected to each other to form an opening so as to surround the opening. The opening is a cutout die corresponding to a side of the cut optical film. The mounting member has an air flow channel,
The air flow channel exposes the air flow outlet from the bottom surface of the mounting member,
The direction of the airflow outlet, said coring coring cutting die according to any one of claims 1 to 7 which is the same direction as the cutting direction of the cutting die. The airflow channel exposes the airflow inlet from the side surface of the mounting member,
The cutout die according to claim 8 , wherein the direction of the airflow inlet is perpendicular to the direction of the airflow outlet. The mounting member has a lubricating passage and a holder that allow passage of a lubricating liquid,
The first cutter is arranged in the holder,
The lubricant passage cut according to any one of claims 1 to 9, wherein the holder and communicating cutting die. The lubricating passage extends to the outer surface of the placing member, and/or, so as to connect the lubricating liquid feeder.
The cutout mold according to claim 10 , wherein the cutout mold further includes a lubricant liquid storage portion, and the lubrication passage connects the holder and the lubricant liquid storage portion. Material of the lubricating liquid is water, alcohols, ketones, ethers, esters, aliphatic, aromatic hydrocarbons, halogenated hydrocarbons, amides, according to claim 10 including the cellosolves, or silicon oxides Cutout type. A cut-out type for cutting the optical film,
A mounting member,
Including at least one closed shape and an open cutter forming at least one open opening,
The at least one closed form and the at least one open aperture are arranged to form an n×m array, where n and m are positive integers greater than 1 and n is the value of m. And/or the at least one closed shape and the at least one open aperture differ in area or shape,
The open-type opening is a cut-out die that cuts corresponding to at least one side of the optical film. 14. The cutting die according to claim 13 , wherein the open-type cutter is a polygonal cutter or a non-rectangular cutter having a notch. Supply mechanism,
A transport mechanism,
The cut-out mold according to any one of claims 1, 3 , 7, and 13 ,
Including a controller that performs the following control,
Controlling the supply mechanism to release or fix the wound optical film,
Control the transport mechanism to transport the wound optical film,
A cutting device that cuts the wound optical film by controlling the cutting die. The cutting device according to claim 15 , wherein a speed at which the transport mechanism transports the optical film is different from a speed at which the supply mechanism transports the wound optical film. The cutting device according to claim 15 , wherein the supply mechanism further includes a dancer roll. A step of transporting the wound optical film by a transport mechanism and advancing it in the transport direction until the wound optical film reaches below the cut-out type open-type cutter according to claim 13 ; ,
The cut-out die cuts the wound optical film, and the open-type cutter of the cut-out die cuts out the optical film,
The optical film has a positioning cut, and the positioning cut and the opening position of the open-type cutter match. The cutting method according to claim 18 , wherein, before the cutting step, the cutting method further includes a step of flattening the cut line of the wound optical film. Providing a rolled optical film having smooth sides,
Cutting the wrapped optical film with an open cutter to form the optical film,
Including
The opening of the open cutter is aligned with the smooth side of the wrapped optical film,
Cutting method. Before the step of cutting the wound optical film by the open-type cutter, further comprising the step of using the open-type cutter, a cutter or a laser to form the smooth side,
The cutting method according to claim 20 . The wound optical film includes a release film, a polarizing film and a surface protective film,
In the step of performing the first cutting of the wound optical film by a cutting die, the cutting die sequentially cuts the release film of the wound optical film, the polarizing film and the surface protective film,
The cutting method according to claim 20 . The cutting method according to claim 20 , wherein the stretching direction of the first cutter forms an included angle with the advancing direction of the wound optical film. A transport mechanism transports the wound optical film, and the wound optical film reaches below the first cutter of the cutout type according to any one of claims 1, 3 and 7. Until it does, a step of advancing in the transport direction,
A step in which the cutting die performs a first cutting on the wound optical film, and the first cutter of the cutting die makes a positioning cut of the wound optical film;
The transport mechanism pulls the wound optical film and continuously advances in the transport direction until the wound optical film reaches below the first cutter and the second cutter. Steps,
A step in which the cutting die performs a second cutting on the wound optical film, and the first cutter and the second cutter of the cutting die cut an optical film from the wound optical film; Including and
The cutting method, wherein the optical film has a first side and a second side facing each other, and the first side and the alignment cut are the same side. In the step of performing the second cutting on the wound optical film by the cutting die, the first cutter makes a new alignment cut in the wound optical film,
The cutting method is
The transport mechanism pulls the wound optical film and continuously advances in the transport direction until the wound optical film reaches below the first cutter and the second cutter. Steps,
The cut-out die cuts the wound optical film a third time, and the cut-out die first cutter and second cutter cut the wound optical film from another wound optical film. Further comprising the step of cutting the film,
The other optical film has the first side and the second side facing each other, and the first side and the new alignment cut of the other optical film have the same side. The cutting method according to claim 24 . The wound optical film includes a release film, a polarizing film and a surface protective film,
In the step of performing the first cutting with respect to the wound optical film by the cutting die, the cutting die is the release film of the wound optical film in order, the polarizing film and the surface protective film. The cutting method according to claim 24 , wherein the cutting is performed. The cutting method according to claim 24 , wherein the stretching direction of the first cutter forms an included angle with the advancing direction of the wound optical film. The transport mechanism transports the wound optical film, and in the transport direction until the wound optical film and the optical film sheet reach below the edge-cutting cutter of the cutout type according to claim 7 . The steps to proceed,
The cutting die performs a first cutting on the wound optical film, and the edge cutting cutter of the cutting die positions the cut for alignment of the wound optical film and the alignment of the optical film sheet. A step to make a break,
A step of pulling the wound optical film by the transport mechanism and continuously advancing in the transport direction until the second gap reaches below the first gap;
From the optical film and the optical film sheet, the cutting die performs a second cutting on the wound optical film, and the first cutter and the second cutter of the cutting die are wound. Cutting the optical film,
The optical film and the second gap are completely separated, the optical film has a first side and a second side facing each other, and the first side and the alignment cut are: Are the same side,
In the step of the cutting die cutting the wound optical film a second time, the edge cutting cutter makes a new alignment cut in the wound optical film. A cutting device for cutting an optical film,
A transport mechanism for transporting the optical film along the transport direction,
The cutting die according to any one of claims 1, 3, 7 and 13 for cutting the optical film, the optical film after being cut forming a first edge material.
A first edge material recovery device for winding the first edge material along a first recovery direction;
Including the first collection direction and the transport direction are not parallel,
Cutting device. The optical film after being cut forms a second edge material, and the cutting device further includes a second edge for winding the second edge material along a second recovery direction. 30. The cutting device according to claim 29 , comprising a material recovery device. The first edge material recovery device or the second edge material recovery device may further include the first edge material or the second edge material along the first recovery direction and/or the second recovery direction. 31. The cutting device according to claim 30 , which is used to apply a first pulling force or a second pulling force to the edge material of. 32. The cutting device according to claim 31 , wherein at least one of the first pulling force and the second pulling force is between 2 and 7 kilograms. The included angle between the first collecting direction and the carrying direction is between 1 degree and 40 degrees, and/or the included angle between the second collecting direction and the carrying direction is between 1 degree and 40 degrees. 32. The cutting device according to claim 31 , wherein 30. The cutting device according to claim 29 , wherein the first edge material recovery device includes a position adjusting member for locking the first edge material.