TWI629674B - Apparatus and method for continuously manufacturing optical display device - Google Patents

Abstract

Provided are an apparatus and method for continuously manufacturing an optical display device capable of bonding an optical function film to a rectangular panel with higher accuracy.

The device includes: a film detection means that detects the posture of the sheet-shaped optical functional film; a panel detection means that detects the posture of the rectangular panel; a deviation determination method that determines the deviation between the posture of the sheet-shaped optical functional film and the posture of the rectangular panel According to the deviation amount, the posture of the rectangular panel is adapted to the posture of the sheet-shaped optical function film, and the rectangular panel is moved so that a predetermined range of the tip portion of the rectangular panel is disposed between the pair of bonding rollers. The moving means fixes and moves the rectangular panel in a state where the predetermined range is protruded.

Description

Device and method for continuously manufacturing optical display device

The present invention relates to the manufacture of an optical display device, and more specifically, to an optical device capable of moving a rectangular panel in a fixed state from a position where it is aligned with an optical function film to a bonding device, and bonding the optical function film Device and method for continuous manufacturing of display device.

In the manufacture of optical display devices such as liquid crystal display devices, individual pasting methods have been used in the past, that is, in addition to the manufacturing process of optical display devices, a large number of optical function films cut in advance from a strip-shaped optical function film have been used. The sheet is brought into the manufacturing process of the optical display device, and is sequentially bonded to a rectangular panel which is brought into the manufacturing process in order. In contrast to such individual attachment methods, in the manufacturing process of optical display devices, it has been proposed that a strip-shaped optical film formed by supporting a plurality of sheet-shaped optical functional films through an adhesive layer on a strip-shaped release film. Laminates are manufactured continuously by only stripping the normal sheet-shaped optical function film and the adhesive layer from the release film together without defects, and bonding the rectangular panel through the adhesive layer. Optical display device. A continuous manufacturing system for an optical display device that realizes such a method is distinguished from the above-mentioned system that implements an individual attachment method, and is called a "Roll to Panel (RTP)" system.

In the RTP system, the band-shaped optical film layered body is ideally fed at a side edge portion parallel to the original feeding direction set in the device, but is snaked or obliquely fed due to various factors. Situation. As a result of the meandering or oblique movement of the optical film laminate, when the sheet-shaped optical function film is fed to the bonding position with the rectangular panel in a state where its posture deviates from the ideal posture, the sheet-shaped optical function film must be adapted to the After deviating from the state to correct the posture of the rectangular panel (also referred to as "alignment" in this specification), the rectangular panel and the sheet-shaped optical function film are bonded together.

Correction (alignment) of the posture of the rectangular panel, and bonding to the optical function film after the correction are performed, for example, in the following manner. First, the rectangular panel is fed to a position where the posture of the rectangular panel is corrected by a conveying method of the rectangular panel. The conveyance means generally adopts a roller conveyor in which a rectangular panel and a plurality of small-diameter rollers having a rotation axis extending in a direction orthogonal to the direction of travel are brought into contact with each other. At the position where the posture of the rectangular panel is corrected, the rectangular panel is fixed in a state where it is not in contact with the conveyance means, for example, by suction or the like, and the posture is detected in this state. The posture of the rectangular panel is maintained fixed without being in contact with the conveying means, and is corrected in accordance with the posture of the sheet-shaped optical functional film detected separately. After the posture was corrected, the rectangular panel was returned to the conveying means, and the fixation was released. The rectangular panel is again fed to the laminating position by the carrying means, and by the laminating hand having a pair of laminating rollers It is bonded to the sheet-shaped optical function film which is fed to the bonding position separately. The conveying means of the rectangular panel and the bonding means of the rectangular panel and the optical function film are usually arranged in series on a straight line. As for the technique of conveying such a rectangular panel, correcting an attitude | position, and bonding with an optical function film, it is disclosed by patent document 1, for example.

For example, in the technology described in Patent Document 1, the rectangular panel is returned to the conveyance means after the posture is detected and corrected, and is fixed and released, and is fed to the bonding position by the conveyance means. In this case, the rectangular panel is transported to the position of the bonding means without being fixed in the state of contact with the transport means after correction. Therefore, the rectangular panel has been corrected to conform to the posture of the optical function film to be transported separately. Posture may change due to contact with the conveying means or uneven conveying speed. On the other hand, the sheet-shaped optical functional film is fed to the bonding means while maintaining the same posture when the posture of the rectangular panel is maintained. Therefore, if it is bonded to the rectangular panel in this way, it will be deviated from being bonded. Laminated to the rectangular panel in its original position.

Such a deviation of the adhesion between the rectangular panel and the sheet-shaped optical functional film has become a problem for maintaining the quality of products in optical display devices in which miniaturization, thinning, and narrow frame have been progressing in recent years. In particular, due to the tendency to attach importance to design in recent years, higher bonding accuracy between rectangular panels and optical functional films has been required.

In this regard, Patent Document 2 proposes a manufacturing apparatus for an optical member bonded body, which is capable of bonding an optical axis of an optical display part to an optical member when the optical display part is bonded to the optical member. The accuracy of the direction is improved. In this device, the optical display parts are aligned while the optical display parts are held by the panel holding part. The aligned optical display parts are carried and held by the panel holding part while being held and sucked. Press the roller in front of you. Considering FIG. 1 or FIG. 6 of Patent Document 2, the optical display part is desorbed and held in front of the pinch roller, and then moved on the roller conveyor. The tip end is inserted between the pinch rollers, and then pinched. Roller grip. Therefore, in the device of Patent Document 2, similarly, the posture of the optical display part that has been corrected to match the posture of the optical member may be affected by the transportation means during the period from the release of the suction to the clamping by the pinch roller. The contact friction or uneven conveying speed changes during the conveying process.

In addition, when the device is configured as a rectangular panel, it is returned to the conveying means after its posture is detected and corrected, and in the case where the plurality of small-diameter rollers are moved while being fed to the bonding position, the plurality of small-diameter rollers are driven from The pair of lamination rollers of the alignment means to the lamination means are arranged on a straight line before. Therefore, a certain amount of space is required for the arrangement, and the alignment means and the lamination means have to be arranged in a tandem manner. For this reason, in recent RTP systems, such a conventional device has been required to be small in terms of improving the production efficiency per unit installation area and the viewpoint of the degree of freedom of replacement in some unit units of the conventional device. There are limits to the degree of freedom of equipment or device layout.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 4644755

[Patent Document 2] Japanese Patent Laid-Open No. 2015-40914

An object of the present invention is to provide a rectangular panel that can be moved to a bonding position with an optical functional film without changing its posture after posture correction, thereby bonding the optical functional film to the rectangular panel with higher accuracy. , Continuity manufacturing device and method for optical display device.

In addition, another object of the present invention is to provide a position where the position of the rectangular panel and the bonding position of the rectangular panel and the optical function film need not be aligned in series, so that the entire device can be miniaturized and free. Of the device layout, the continuous manufacturing device and method of the optical display device.

In order to solve the above-mentioned problem, the present invention provides, in one aspect thereof, a sheet-shaped optical function film capable of being peelably laminated on a strip-shaped release film from the release film and peeling off the sheet-shaped optical film. The functional film and the rectangular panel are bonded together using a pair of bonding rollers, thereby continuously manufacturing an optical display device. This device includes: a film detection means that detects the posture of the sheet-shaped optical functional film; a panel detection means that detects the posture of the rectangular panel; a deviation determination method based on the detected position of the sheet-shaped optical functional film and the posture of the rectangular panel, Calculate the posture of the sheet-shaped optical function film and A deviation amount between the postures of the rectangular panels; and a moving means, according to the deviation amount, the posture of the rectangular panel matches the posture of the sheet-shaped optical function film, and the rectangular panel is moved so that a predetermined range of the front end portion of the rectangular panel is arranged in a Pair of fit rollers. The moving means is configured such that the rectangular panel is placed in a state where at least the predetermined range is protruded while the posture of the rectangular panel matches the posture of the sheet-shaped optical film and a predetermined range is arranged between a pair of bonding rollers. Pin and move it.

In a preferred embodiment, the device further includes support means for supporting at least a part of the rectangular panel in response to the release of the fixing of the rectangular panel by the moving means when the fixing is released. In another preferred embodiment, the moving means includes suction fixing means for fixing the rectangular panel by suction.

The moving means can be configured to move the rectangular panel from a direction orthogonal to the rotation axis of the pair of bonding rollers, and the predetermined range can be arranged between the pair of bonding rollers. The rotation axes of the bonding rollers move in a parallel direction, and a predetermined range is arranged between the pair of bonding rollers.

In another aspect, the present invention provides a sheet-shaped optical function film capable of being peelably laminated on a strip-shaped release film from the release film, and the peeled sheet-shaped optical function film and a rectangular panel are provided. A method of continuously manufacturing an optical display device by bonding using a pair of bonding rollers. This method includes: a process of detecting the posture of the sheet-shaped optical function film; a process of detecting the posture of the rectangular panel; based on the detected position of the sheet-shaped optical function film and the posture of the rectangular panel; A project of a deviation from the posture of the rectangular panel; a project of adapting the posture of the rectangular panel to the posture of the sheet-shaped optical function film according to the deviation; and moving the rectangular panel to arrange a predetermined range of the tip portion on a pair of stickers Works between rollers. The rectangular panel is fixed between the process of matching the posture of the rectangular panel with the posture of the sheet-shaped optical film and the process of arranging a predetermined range between a pair of bonding rollers in a state where at least the predetermined range protrudes. mobile.

In a preferred embodiment, the method further includes: supporting at least a part of the rectangular panel in response to the fixation of the rectangular panel. In another preferred embodiment, the fixing of the rectangular panel is performed by suction.

The rectangular panel can be designed to move from a direction orthogonal to the rotation axis of a pair of bonding rollers, and the predetermined range is arranged between the pair of bonding rollers. It moves in a parallel direction, and a predetermined range is arrange | positioned between a pair of bonding rollers.

1‧‧‧ continuous manufacturing equipment

F, F’‧‧‧ Optical film laminate

F1‧‧‧sheet optical film

F2‧‧‧Adhesive layer

F3‧‧‧ release film

W‧‧‧ rectangular panel

110‧‧‧ roll of optical film laminate

150‧‧‧cut-off section

200‧‧‧ Laminating Department

202‧‧‧ Stripping means

206‧‧‧Fit roller

220‧‧‧membrane detection means

222‧‧‧Straight forward position detection method

224‧‧‧Edge detection means

300‧‧‧ Handling means

302‧‧‧roller

320‧‧‧ Counterpart

322‧‧‧ Panel Inspection Means

400‧‧‧ Means of movement

402‧‧‧Adsorption and fixing means

404‧‧‧Adsorption Department

406‧‧‧ first tip

410‧‧‧Support means at the time of release

500‧‧‧control device

510‧‧‧Information Processing Department

512‧‧‧ Deviation Amount Determination Method

520‧‧‧Memory Department

[Fig. 1] A schematic overview of the overall configuration of a continuous manufacturing apparatus according to an embodiment of the present invention.

[Fig. 2] An enlarged schematic conceptual view of an alignment portion where the sheet-shaped optical function film is aligned with a rectangular panel and a bonding portion where the bonding is performed.

[Fig. 3] A model diagram for explaining the operation of the moving means until the rectangular panel is aligned and moved to the bonding section, and the rectangular panel is shown from below. In the form of support.

[Fig. 4] The adsorption fixing means shown in Fig. 3 are schematic conceptual diagrams of examples of adsorption fixing means of different shapes.

[Fig. 5] A model diagram for explaining the operation of introducing a rectangular panel into a bonding portion from a direction different from that shown in Fig. 3. [Fig.

[Fig. 6] A model diagram for explaining the operation of the moving means for aligning the rectangular panel and moving it to the bonding portion, revealing a form of supporting the rectangular panel from above.

[Fig. 7] Reveal the engineering flow chart of alignment and bonding.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to these embodiments.

FIG. 1 is a conceptual diagram of the overall configuration of a device 1 for continuously manufacturing an optical display device according to the present invention. In the continuous manufacturing apparatus 1, the sheet-shaped optical functional film F1 laminated on the strip-shaped release film F3 through the adhesive layer F2 is peeled off from the release film F3, and the sheet-shaped optical functional film F1 is peeled off. By bonding the rectangular panel W with a pair of bonding rollers 206, the optical display device P can be continuously manufactured. The operation of each part of the continuous manufacturing apparatus 1 can be controlled by the control device 500. In the present invention, the sheet-shaped optical function film F1 can be made into a polarizing film, an antireflection film, a retardation film, a light diffusion film, a brightness enhancement film, and the like, and the rectangular panel W can be made into a liquid crystal panel, an organic EL panel, or the like.

Several sheet-shaped optical functional films F1 are continuous in the longitudinal direction The optical film laminated body F laminated | stacked on the strip-shaped release film F3 can be formed as follows. First, the optical film layered body F 'is rolled out from the roll 110 of the optical film layered body F' formed by laminating the tape-shaped optical function film F1 'through the adhesive layer F2 on the tape-shaped release film F3, and the optical film layered body F' is released and carried. . Next, during the transportation, the optical film laminate F 'is cut into the cutting line CL (also referred to as the adhesive layer F2) deep in the width direction of the optical film laminate F' in the cutting portion 150 including the cutter. "Half cut"). In another embodiment, an optical film laminate having a cut line CL formed in advance can also be used. In this case, the cutting portion 150 may be dispensed with.

The optical film layered bodies F and F ', if necessary, adjust the film feed speed of the tension rollers 140 and 180 through the feed rollers 130 and 170 of the feed film to exclude the sheet-shaped optical function film exclusion section (not present) that has defects. (Illustrated) and the like, and are fed to the bonding section 200.

On the other hand, the adhered body of the sheet-shaped optical function film F1, that is, the rectangular panel W, is released one by one from the box 280 containing the plurality of rectangular panels W, for example, by a plurality of small-diameter rollers 302. It is conveyed by a conveyance means 300 such as a roller conveyor.

The rectangular panel W is detected at the registration portion 320, and is corrected (aligned) according to the deviation state of the sheet-shaped optical function film F1, and then fed to the bonding portion 200. In the bonding section 200, the sheet-shaped optical function film F1 that is peeled off from the release film F3 and the adhesive layer F2 by the peeling means 202 is bonded to the rectangular panel W by a pair of bonding rollers 206. The release film F3 after the sheet-shaped optical functional film F1 has been peeled off is taken up by a take-up roller 210.

FIG. 2 is a conceptual enlarged view of a part of the device 1 including the bonding part 200 and the positioning part 320 in FIG. 1, and is a diagram for explaining a method for positioning the sheet-shaped optical function film F1 and the rectangular panel W. FIG. In addition, FIG. 3 is a moving means 400 that expands and reveals the portions of the bonding portion 200 and the positioning portion 320 in FIG. 2, and aligns the rectangular panel W at the positioning portion 320 and moves the rectangular panel W to the bonding portion 200. The model description is used for the description of the operation. In FIG. 3, according to the expressions of FIG. 1 and FIG. 2, it is revealed that processing is performed from (a) to the right (e) to the left of the figure. In addition, FIG. 7 is an engineering flow chart of the alignment and bonding of the sheet-shaped optical functional film and the rectangular panel. The step number of the project shown in FIG. 7 will be marked at the place described below.

As shown in FIG. 2, the sheet-shaped optical function film F1 on the optical film layered body F fed toward the bonding portion 200 is, for example, a film detection means 220 including a straight-in position detection means 222 and an edge detection means 224. , And its posture is detected. In the continuous manufacturing apparatus 1, the side edge portion of the optical film laminate F is preferably in the original feeding direction (hereinafter referred to as the "film feeding direction") of the optical film laminate F, and this direction is defined as the x direction In addition, the direction orthogonal to the x direction in the plane of the film is defined as the y direction.) It is fed in a parallel state, but it may be fed in a meandering or oblique manner due to various factors. The film detecting means 220 can detect the posture of the sheet-shaped optical functional film F1 fed in a meandering or oblique state.

The posture of the sheet-shaped optical functional film F1 is, for example, the image of the leading end and side edges of the sheet-shaped optical functional film F1 by the film detection means 220 such as the straight-in position detection means 222 and the edge detection means 224 (FIG. 7 S10, the same below), and as the flake optical in the acquired image The amount of deviation of the distance and angle between the position of the functional film F1 and the reference position of the tip end and the film feeding direction is determined (S12). The image data obtained by the film detection means 220 is transmitted to the control device 500, and the amount of deviation is obtained by the information processing unit 510 of the control device 500. The calculated deviation amount is stored in the storage unit 520 of the control device 500. The configuration and arrangement of the film detection means 220 are not limited to the configuration and position shown in FIG. 2 as long as the configuration and position can accurately determine the posture of the optical film laminate F1. After the deviation amount of the sheet-shaped optical functional film F1 is obtained, the sheet-shaped optical functional film F1 is peeled from the release film F3 by the peeling means 202, and the tip end portion is pried out and disposed between the pair of bonding rollers 206 (S14).

On the other hand, the rectangular panel W fed from the cassette, like the optical film laminate F, may deviate from the original feeding direction of the rectangular panel W (hereinafter referred to as the "panel feeding direction". The direction is the x direction. In addition, the direction orthogonal to the x direction in the plane of the panel is defined as the y direction.) (See FIG. 3 (a)). The alignment portion 320 including, for example, the panel detection means 322 can detect the posture of the rectangular panel W fed in a deviated state. The posture of the rectangular panel W can be performed using, for example, an alignment mark that is a formalized pattern arranged on the rectangular panel W in order to easily align the rectangular panel W with other members. The posture of the rectangular panel W is obtained by the panel detection means 322. The image of the calibration mark attached to the rectangular panel W is obtained (S18), and the position of the acquired calibration mark is calibrated when the rectangular panel W is fed in the panel feeding direction. The distance between the reference position where the mark exists and the amount of angular deviation are calculated (S20). The acquired image data of the calibration mark is transmitted to the control device 500, and the amount of deviation is obtained by the information processing unit 510 of the control device 500. The calculated deviation amount is stored in the storage unit 520 of the control device 500. In one embodiment, the calibration mark is used as a reference for detecting the posture of the rectangular panel W, but it is not limited to this. For example, as in the optical film laminate F1, the distance between the end position and the panel feeding direction may be used. And angle to detect posture.

In order to accurately adhere the sheet-shaped optical function film F1 and the rectangular panel W in the bonding device 200, after detecting the posture of the sheet-shaped optical function film F1 and the posture of the rectangular panel W, it is necessary to make the postures of the two. For this reason, in the continuous manufacturing apparatus 1, preferably, first, based on the detected posture of the sheet-shaped optical functional film F1 and the posture of the rectangular panel W, the posture of the sheet-shaped optical functional film F1 and the rectangular panel W are obtained. The amount of deviation between the postures (S22), and based on the amount of deviation, the posture of the rectangular panel W is adapted to the posture of the optical function film F1 (S24).

The continuous manufacturing apparatus 1 has a deviation amount determining means 512 in the information processing unit 510, which is used to obtain the posture and the posture of the sheet optical functional film F1 based on the detected posture of the sheet optical functional film F1 and the posture of the rectangular panel W. The amount of deviation between the postures of the rectangular panel W. The deviation amount determination means 512 can obtain the deviation amount as an example (S22) as follows. First, from the image of the sheet-shaped optical functional film F1 detected by the film detection means 220, the x-direction distance (x1, x2) between two points in the tip portion and the reference position to which the tip portion should be obtained is obtained. , And find the distance in the y direction between two points in one of the side edges and the film feeding direction (y1, y2). Next, using (y1, y2) and a distance between two points in one of the side edge portions, an angle θ1 that is different from the film feeding direction of the optical film laminate F1 is obtained. On the other hand, from the image of the calibration mark of the rectangular panel W detected by the panel detection means 322, the x and y distances (x3, 2) between the two points of the calibration mark and the two reference positions at which the calibration mark should reach (x3, y3) (x4, y4). Next, the angle θ2 between the line connecting the two points of the detected calibration mark and the line connecting the two points of the reference position is obtained. Finally, using x1 to x4, y1 to y4, θ1, and θ2, the amount of deviation between the posture of the optical film laminate F1 and the posture of the rectangular panel W is obtained.

The posture of the rectangular panel W is the posture in which the sheet-shaped optical functional film F1 is aligned based on the deviation amount obtained by the deviation amount determination means 512 (S24). The continuous manufacturing apparatus 1 includes a moving means 400. The moving means 400 is controlled by the control device 500 to move the rectangular panel W in a direction (z direction orthogonal to the x direction and the y direction) away from the panel conveying means 300 while the rectangular panel W is fixed (S16). The rectangular panel W can be aligned (S24) by changing the posture of the rectangular panel W while the rectangular panel W is not in contact with the roller 302 of the panel conveyance means 300 (see FIG. 3 (b)). The moving means 400 is configured to move the rectangular panel W toward the upstream or downstream side (x direction) of the panel feeding direction, or in a direction (y direction) orthogonal to the panel feeding direction, or relative to the feeding direction Rotate the necessary angle (θ). In addition, as described later, the moving means 400 is disposed at a position between the pair of bonding rollers 206 so that the rectangular panel W can be conveyed from the alignment portion 320 to the leading end of the rectangular panel W (S26). Tracks and motors. Should As the mechanism, a mechanism known to those skilled in the art can be appropriately used.

The alignment of the rectangular panel W and the sheet-shaped optical functional film F1 is not limited to the above method. For example, the rectangular panel W may be extended in the direction of travel as proposed by the applicant of this application in Patent Document 1. The center line and the center line extending in the direction of travel of the optical function film fed to the bonding portion are set as a reference.

The moving means 400 includes fixing means for fixing the rectangular panel W. In one embodiment, the fixing means is preferably a suction fixing means 402 capable of fixing the rectangular panel W in a suction state. The suction and fixing means 402 can control and fix the lower surface or the upper surface of the rectangular panel W by the vacuum suction of the suction portion 404 under the control of the control device 500.

As shown in FIG. 3 (b), the rectangular panel W is fixed in a predetermined range P at a tip end portion of the rectangular panel W so as to protrude forward from a tip end portion 406 of the suction fixing means 402. The position where the suction and fixing means 402 suctions the rectangular panel W may be rearward of the rectangular panel W in order to ensure the predetermined range P. This predetermined range P is, as will be described later, a portion of the optical film laminate F1 and the rectangular panel W arranged between the bonding rollers 206 before being subjected to bonding by a pair of bonding rollers 206, at least a part of this portion, It is clamped by a pair of bonding rollers 206. The predetermined range P is 50 mm to 150 mm from the tip of the rectangular panel W, and preferably 60 mm to 100 mm. If the prescribed range P is larger than 150 mm, the rectangular panel W will sag due to its own weight, and may collide with or break inside the device during transportation. If the specified range P is smaller than 50mm, The rectangular panel W is reliably clamped by the bonding roller 206 described later.

The shape of the suction surface of the suction and fixing means 402 that is in contact with the rectangular panel W is not limited to a rectangle as shown in FIG. 3, and can be shaped into a truss shape as shown in FIG. 4, for example. Fig. 4 (a) shows the adsorption fixing means 402 used when the rectangular panel W is carried with the short side as the head, and Fig. 4 (b) shows the situation when the rectangular panel W is carried with the long side as the head. The adsorption fixing means 402 used below.

Each of the suction fixing means 402 has a central portion extending in the conveying direction and a plurality of wrist portions protruding from the central portion in a direction crossing the conveying direction. A plurality of suction portions 404 are provided at appropriate positions of the central portion and the wrist portion. This suction fixing means 402 can rise from below the small-diameter roller 302 so that the wrist part passes between the small-diameter rollers 302 to suck the rectangular panel W. By using such an adsorption fixing means that can adsorb the entire surface of the rectangular panel W over a wide range, the rectangular panel W can be more stably supported. In the adsorption fixing means 402 having such a shape, as in the case of the adsorption fixing means 402 shown in FIG. 3, the rectangular panel W is a predetermined range P of the tip end portion of the rectangular panel W from the foremost end of the adsorption fixing means 402. The manner in which 406 protrudes forward is fixed.

The fixing means for fixing the rectangular panel W is not limited to the suction fixing means 402. For example, it is also possible to use an upper and lower clamping means to clamp the upper and lower sides of the rectangular panel W, or a lateral clamping means to clamp the side of the rectangular panel W from the opposite direction. Even when the fixing means such as the upper and lower clamping means or the side clamping means are used, the rectangular panel W is projected forward from the foremost end of the fixing means in a predetermined range P. The way out was fixed.

The rectangular panel W after being aligned (S24) in a manner consistent with the posture of the optical film laminate F1, and then controlled by the control device 500 to maintain the fixed to the moving means 400, and after being maintained to be aligned In the postured state, it is carried (S26) to the bonding section 200 (see FIG. 3 (c)). It should be noted that in the present embodiment, the orientation of the rectangular panel W will be described after the alignment portion 320 is detected. However, the alignment of the rectangular panel W may be designed to be performed while the rectangular panel W is being transported to the bonding section 200 by the moving means 400 after the posture is detected.

The rectangular panel W carried to the bonding section 200 by the moving means 400 (S26), and maintained in a fixed state by the moving means 400, and controlled by the control device 500, the predetermined range P of the leading end portion is arranged ( S28) between a pair of bonding rollers 206 (see FIG. 3 (d)). The predetermined range P of the front end portion of the rectangular panel W is not limited as it is the direction of movement when the predetermined range P is disposed between the pair of bonding rollers 206. In the embodiment of FIG. 3, the moving means 400 can move the rectangular panel W from a direction orthogonal to the rotation axes of the pair of bonding rollers 206 and arrange a predetermined range P between the pair of bonding rollers 206.

In another embodiment, as shown in FIG. 5, the movement means 400 can detect and align the rectangular panel W (see FIG. 5 (a)), and then move the rectangular panel W from a pair of bonding rollers 206. The rotation axis is moved in a parallel direction (see FIG. 5 (b)), and the predetermined range P is arranged between a pair of bonding rollers (see FIG. 5 (c)). If a structure in which the rectangular panel W is moved parallel to the rotation axis of the pair of bonding rollers 206 is adopted As compared with a configuration in which it is moved from a direction orthogonal to the rotation axes of the pair of bonding rollers 206, the overall length of the continuous manufacturing apparatus 1 can be shortened, and a more free device layout can be adopted.

The predetermined range P of the leading end portion is arranged between the pair of bonding rollers 206 by the moving means 400, and one of the pair of bonding rollers 206 is actuated by the control based on the control device 500, and the sheet optics The front end portions of the functional film F1 are held together from above and below (S30) (see FIGS. 3 (d) and (e)). Once the rectangular panel W is clamped, the suction fixing means 402 releases the suction of the rectangular panel W (S32). The releasing and fixing by the suction fixing means 402 may also be performed before the rectangular panel W is clamped by a pair of bonding rollers 206. In this case, the suction fixing means 402 is released after the fixing of the rectangular panel W is released to a pair. Until the bonding roller 206 is clamped, the rectangular panel W can be supported in an unfixed state. The time point at which the fixation by the suction fixing means 402 is released is not particularly limited as long as the posture of the rectangular panel W does not change during the period from the release to the clamping by the bonding roller 206. .

Preferably, at a position corresponding to at least the rear end portion of the rectangular panel W disposed between the pair of bonding rollers 206 in a predetermined range P, a support release means 410 is disposed. The support means 410 when the fixation is released is a rectangular panel W that is held by a pair of bonding rollers 206 and adsorbs the disengaged fixing means 402, and is supported from below, thereby preventing when only one pair of bonding rollers 206 is used. Damage to the rectangular panel W may occur when the clamping is supported. When the fixing is released, a plurality of supporting means 410 may be arranged in the feeding direction of the rectangular panel W. In order to support not only the rear end portion of the rectangular panel W, but also the entire lower surface except for the predetermined range P of the front end portion, it may be configured to support only the middle portion in the feeding direction of the rectangular panel W.

When the support means 410 is provided when the fixation is released, the rectangular panel W can be supported by the pair of lower rollers of the bonding roller 206 and the support means 410 when the fixation is released, so that the rectangular panel W can also be bonded. Before the roller 206 is clamped, the suction fixing means 402 is detached from the rectangular panel W. After the fixing of the rectangular panel W by the suction fixing means 402 is released and before being clamped by a pair of bonding rollers 206, when the suction fixing means 402 supports the rectangular panel W in a non-fixed state The suction fixing means 402 acts as a support means 410 when the fixing is released.

As the support means 410 at the time of releasing the fixation, for example, a small-diameter roller similar to that used by the conveyance means 300 can be used, but it is not limited to this. For example, the support means 410 can be arranged so as to project from the width direction of the rectangular panel W in the opposite direction. A pair of supporting rods supporting the lower surface of the rectangular panel W, or a plurality of wheels juxtaposed in the width direction so as to contact the lower surface of the rectangular panel W.

The support means 410 when the fixing is released can be arranged in advance in a fixed position, or it can also be configured to appear below the rectangular panel W only when it is necessary to support the rectangular panel W, and retreat to any position when no support is needed. .

The rectangular panel W and the rectangular panel W are conveyed to the bonding section 200 and separated from the release film F3 by the peeling means 202. The sheet-shaped optical functional film F1 is bonded through the adhesive layer F2 (S36) (see FIG. 3 (e)). The bonding is performed in a state where the tip of the sheet-shaped optical film F1 is superimposed on a predetermined position of the front portion of the rectangular panel W, and is sandwiched from above and below by a pair of bonding rollers 206 (S30). Each of the combining rollers 206 is rotated in the opposite direction to the direction shown by the arrow in FIG. 3 (e) (S34), thereby sequentially proceeding from the front of the rectangular panel W to the rear. The optical display device PU whose bonding has been completed is fed by the conveying means 300 away from the bonding portion 200.

In FIG. 3, it is revealed that the rectangular panel W is adsorbed from below by the adsorption fixing means 402, and the sheet-shaped optical function film F1 is attached to the upper surface of the rectangular panel W at the bonding portion 200. However, as shown in FIG. 6, the rectangular panel W may be configured to be sucked from above by the adsorption fixing means 402, and the sheet-shaped optical function film F1 may be bonded to the lower surface of the rectangular panel W at the bonding portion 200. In addition, FIG. 6 only shows a model diagram when viewed from the side.

In this embodiment, the rectangular panel W (refer to FIG. 6 (a)) carried to the positioning portion 320 can be lifted from the top by the suction fixing means 402 (refer to FIG. 6 (b)). The rectangular panel W after the posture is detected and aligned in the lifted state is transported toward the bonding portion 200 while being lifted while being held fixed by the suction fixing means 402 (see FIG. 6 (c)). . The leading end portion P of the rectangular panel W is disposed between the pair of bonding rollers 206, the rectangular panel W is held by the pair of bonding rollers 206, and the fixing by the suction fixing means 402 is released (see FIG. 6 (d)). ), Held by a pair of conforming rollers 206 from above and below The rectangular panel W and the sheet-shaped optical function film F1 are sequentially bonded from the front to the rear by a pair of bonding rollers 206 (see FIG. 6 (e)).

In still another embodiment, the rectangular panel W can be configured to be suction-fixed from above, and as shown in FIG. 4, it can be moved from a direction parallel to the rotation axis of the pair of bonding rollers 206 to arrange the predetermined range P. Between a pair of conforming rollers.

Claims (6)

A device for continuously manufacturing an optical display device is a method for peeling a sheet-shaped optical function film laminated on a strip-shaped release film from the aforementioned release film, and peeling off the aforementioned sheet-shaped optical function film. A device for continuously manufacturing an optical display device by bonding a rectangular panel with a pair of bonding rollers, comprising: a film detecting means for detecting the posture of the sheet-shaped optical functional film; and a panel detecting means. Detecting the posture of the rectangular panel; a deviation amount determining means, based on the detected posture of the sheet-shaped optical functional film and the posture of the rectangular panel, determining a deviation amount between the posture of the sheet-shaped optical functional film and the posture of the rectangular panel And a moving means, according to the deviation, the posture of the rectangular panel is adapted to the posture of the sheet-shaped optical function film, and the rectangular panel is moved so that a predetermined range of a tip portion of the rectangular panel is disposed on the pair of laminations. Between the rollers; the moving means is adapted to adapt the posture of the rectangular panel to the posture of the sheet-shaped optical function film The predetermined range is arranged between the pair of bonding rollers, the rectangular panel is fixed and moved while at least the predetermined range is protruding, and the rectangular panel is moved from the pair of bonding rollers. The rotation axis of the moving parallel direction moves so that the predetermined range moves from the side of the pair of bonding rollers and is arranged between the pair of bonding rollers. The device according to item 1 of the scope of patent application, further comprising: a support means at the time of releasing the fixing, supporting at least a part of the rectangular panel in response to the release of the fixing of the rectangular panel by the moving means. The device according to item 1 or item 2 of the scope of patent application, wherein the moving means includes an adsorption fixing means for fixing the rectangular panel by adsorption. A method for continuously manufacturing an optical display device is to peel off a sheet-shaped optical function film laminated on a strip-shaped release film from the aforementioned release film, and peel the aforementioned sheet-shaped optical function film. A method for continuously manufacturing an optical display device by using a pair of bonding rollers to be bonded to a rectangular panel, comprising: a process of detecting the posture of the sheet-shaped optical function film; and detecting the posture of the rectangular panel. Engineering; based on the detected posture of the sheet-shaped optical function film and the posture of the rectangular panel, calculating the deviation between the position of the sheet-shaped optical function film and the posture of the rectangular panel; A project in which the posture of the rectangular panel matches the posture of the sheet-shaped optical function film; and a project in which the rectangular panel is moved and a predetermined range of the leading end portion is disposed between the pair of bonding rollers; the rectangular panel is The posture of the rectangular panel fits the posture of the sheet-shaped optical function film, and the predetermined range is arranged on the pair of bonding rollers. Between the projects, it is fixed and moved in a state that at least the aforementioned predetermined range protrudes, and moves from a direction parallel to the rotation axis of the pair of bonding rollers, so that the aforementioned predetermined range is from the pair of bonding. The roller moves sideways and is arranged between the pair of bonding rollers. The method according to item 4 of the scope of patent application, further comprising: supporting at least a part of the rectangular panel in response to the fixation of the rectangular panel. The method according to item 4 or item 5 of the scope of patent application, wherein the fixing of the rectangular panel is performed by adsorption.