KR20170033803A - Method For Applying Optical Film To Optical Display Cell - Google Patents

Abstract

The present invention relates to a cell aggregate motherboard (B) having a configuration in which a plurality of optical display cells are arranged in the longitudinal direction on a substrate in a state in which the sides having terminal portions are disposed in the lateral direction, The optical film laminate roll 22 in which the optical film laminate obtained by laminating the carrier film 21e via the pressure-sensitive adhesive layer is wound on the optical film having the width corresponding to the lateral width excepting. The method comprises the steps of transporting a cell aggregate motherboard to a fusing position, feeding the optical film laminate out of the roll and transferring it to a fusing position, and, with respect to the optical film and its adhesive layer of the stretched optical film laminate, Forming a plurality of optical film sheets supported on the carrier film in such a manner that the optical film sheets are sequentially cut in the transverse direction at intervals in the longitudinal direction corresponding to the longitudinal dimensions of the optical display cells, The optical film sheet is peeled from the carrier film in a state in which the pressure-sensitive adhesive layer is left on the side surface of the cell assembly motherboard, and then sequentially bonded to the optical display surface except for the terminal portions of the individual optical display cells on the cell aggregate mother board.

Description

[0001] The present invention relates to a method for attaching an optical film to an optical display cell,

The present invention relates to a method of bonding an optical film sheet to an optical display cell such as an organic EL display cell or a liquid crystal display cell. Particularly, the present invention relates to a method of successively joining optical film sheets to a plurality of rectangular optical display cells each having terminal portions provided with electrical terminals for electrical connection formed on one side.

An optical film comprising a polarizer formed in a continuous web of a predetermined width in a predetermined width is cut out to a predetermined length while being fed out from the roll of the optical film and the cut sheet of the optical film is conveyed to a liquid crystal display A system and method of a roll-to-panel (RTP) system in which cells are sequentially stacked on a cell is known, for example, from International Publication WO2009 / 128241 A1 (Patent Document 1).

This known method is suitable for use in an optical display cell having a relatively large size and rigidity such as a liquid crystal display cell for a TV or a liquid crystal display cell for a personal computer, The advantage of being able to achieve a higher efficiency of the manufacturing process than the method of bonding the film sheets to the display cells one sheet at a time is recognized and widely used. However, this method is inconvenient for application to optical film joining to a comparatively small-sized optical display panel such as a smart phone or a small tablet, and there is room for improvement in practical use. Further, in the case of an optical display cell which can be made thin and flexible like the organic EL display cell, it is difficult to perform the fusion of the optical film by employing the method described in Patent Document 1 for its flexibility, not. Particularly, in the case where the organic EL display cell is of a relatively small size such as for a smart phone or a small tablet, it is not easy to apply the method described in the above-mentioned Patent Document 1 to perform bonding of the optical film sheet.

As a document describing a method for industrially manufacturing an organic EL display cell having a relatively small screen size, Korean Patent Application Laid-Open No. 10-1174834 (Patent Document 2) is known. According to the method described in Patent Document 2, a resin film is formed on a glass substrate, and the resin film is used as a substrate for forming a film-type display cell. Then, a large number of display cells arranged in a plurality of rows and columns are formed on the substrate, the entire surface thereof is covered with a process film, and then the substrate on which the display cells are formed is peeled off from the glass substrate. Thereafter, the individual film-type display cells are divided in a state in which the process films are bonded, so that the terminal portions provided with electrical terminals for electrical connection formed on one side of each film-type display cell are peeled off, The film of the process film is peeled off to form individual film-type display cells.

Patent Document 2 discloses a method of manufacturing a film-shaped optical display cell having a rectangular shape in which a terminal portion provided with electrical terminals for electrical connection is formed on one side. However, in the case where the optical film is bonded to the optical display cell, As to the conjugation of the optical film including the polarizer, nothing is taught. However, in the case of a liquid crystal display cell, it is essential to adhere an optical film including a polarizer to the cell because of image display. Even in the case of an organic EL display cell, a retardation film laminated on a polarizer It is necessary to attach the polarizing plate to the cell.

International Publication No. WO2009 / 128241 A1 Korean Patent Application Publication No. 10-1174834 Japanese Patent Application Laid-Open No. 2007-157501 Japanese Patent Laid-Open Publication No. 2013-63892 Japanese Patent Laid-Open No. 2010-13250 Japanese Patent Application Laid-Open No. 2013-35158 International Publication No. WO2009 / 104371A1 Japan Special Promotion 2013-070787 Japan Special Issue 2013-070789 Japanese Patent No. 5204200 Japanese Patent No. 5448264

It is an object of the present invention to provide a method which can be easily applied to optical film joining to a relatively small-sized optical display panel such as a smart phone or a small tablet, and capable of high- .

Another object of the present invention is to provide a method for easily bonding an optical film sheet to a roll-to-panel (RTP) system even if the optical display cell is a flexible flexible sheet structure.

According to one aspect of the present invention, in an optical display cell having a rectangular shape in which a terminal portion having an electrical terminal for electrical connection is formed on one side, a terminal having an electrical terminal for electrical connection, A plurality of optical display cells each having a rectangular shape on one side and a plurality of rectangular optical display cells formed on one side are arranged in a row in the longitudinal direction with the optical display surface located in the lateral direction At least a layer of a polarizer having a width corresponding to the lateral width excluding the terminal portion in the arrangement state of the optical display cells arranged in the longitudinal direction on the aggregate mother board and the cell aggregate motherboard An optical film laminate roll in which a continuous web-shaped optical film laminate, in which a carrier film is adhered to an optical film through a pressure-sensitive adhesive layer, is wound in a roll form is used It provides the law.

The method comprises: transferring a plurality of cell aggregate motherboards sequentially to an fusing position; feeding the optical film laminate from the optical film laminate roll to the fusing position; With respect to the optical film of the sieve body and the pressure-sensitive adhesive layer, in the longitudinal direction interval corresponding to the longitudinal dimension in the arrangement state of the optical display cells arranged in the longitudinal direction on the cell aggregate motherboard, A step of forming a plurality of optical film sheets supported on the carrier film through a pressure-sensitive adhesive layer by sequentially forming a plurality of optical film sheets on the optical film side, The peeled and peeled optical film sheet is peeled off from the terminals of individual optical display cells arranged in the longitudinal direction on the cell aggregate mother board moving in the transport direction And the section of the optical display surface except for an adhesive preparation containing minute summing steps in sequence.

Further, in this method, before the optical film sheet is bonded to the leading optical display cell in the longitudinal direction of the optical display cells arranged in the longitudinal direction on the cell aggregate mother board, The lateral position and the azimuth angle of the cell aggregate motherboard are adjusted so that the optical display cells are aligned with respect to the lateral direction and the azimuth angle with respect to the optical film sheet fed to the kneading position, So that the front end of the sheet of the individual optical film and the front end of the corresponding optical display cell on the cell aggregate motherboard are aligned.

According to another aspect of the present invention, in place of forming the transversal infiltration to form the optical film sheet, the optical film is peeled off from the carrier film in a state in which the pressure-sensitive adhesive layer remains on the optical film side at the bonding position, The film is continuously juxtaposed to the region of the optical display surface except for the terminal portions of the plurality of optical display cells arranged in the longitudinal direction on the cell aggregate mother board moving in the transport direction. Then, a plurality of optical display cells on the cell aggregate mother board to which the optical films are continuously bonded are separated into individual cells, and at the same time, at the longitudinal end of the optical display cells, the optical films bonded to the individual cells are cut do.

In any of the embodiments, a plurality of longitudinal rows of the plurality of optical display cells are arranged in parallel on the cell aggregate motherboard, and the optical film sheet can be bonded to the optical display cells included in each column have. In this case, the joining of the optical film sheets to the optical display cells included in the respective rows arranged in parallel can be performed sequentially for each column.

Further, in the case of pasting the optical film sheet cut to a predetermined size in advance into the optical display cell, the plurality of optical display cells on the cell aggregate motherboard are arranged such that the longitudinal rows of the plurality of optical display cells are arranged in a plurality of rows After the optical film sheet is bonded to the optical display cell at the head of the transport direction in the first row of the right or left longitudinal direction in the conveying direction in the conveying direction, The optical film sheet is moved in the horizontal direction and the backward direction to align the front end of the optical display cell at the head of the transport direction of the second longitudinal row adjacent to the longitudinal first row to the front end of the optical film sheet, The optical film sheet is bonded to the optical display cell and sequentially subjected to the same bonding to obtain the optical display cell of the first row of all the columns When the optical film sheet is bonded, the cell aggregate motherboard is advanced in the transport direction, and the optical film sheet is bonded to the optical display cell located in the second row of each column by the same operation. So that the optical film sheet can be bonded to all of the optical display cells on the cell aggregate motherboard.

In any of the above-described aspects of the present invention, the base material may be flexible, and in this case, the base material is preferably formed of a heat-resistant resin material. In general, the substrate may be a flexible ceramic sheet or a flexible glass sheet. By forming the base material with a heat resistant material, there is no fear that the base material will be damaged by the high temperature at the time of manufacturing the optical display cell. The display cell may be an organic EL display cell or a liquid crystal display cell.

Further, in any of the above aspects of the present invention, the optical film can be composed of a polarizer and a retardation film bonded to the polarizer. In this case, the optical film is configured such that the retardation film is positioned on the side in contact with the pressure-sensitive adhesive layer, and the retardation film is adhered to the optical display surface of the optical display cell. It is also preferable that the absorption axis of the polarizer and the slow axis of the retardation film are arranged so as to intersect at an angle within a range of 45 占 占. It is also preferable that the absorption axis of the polarizer is arranged parallel to the longitudinal direction of the optical film, and the slow axis of the retardation film is arranged to be inclined obliquely with respect to the longitudinal direction of the optical film. In this case, the retardation film can be a reverse dispersion film in which the retardation with respect to the short wavelength light is smaller than the retardation with respect to the long wavelength light.

In another aspect of the present invention, in order to adhere an optical film sheet to an optical display cell having a flexible flexible sheet structure in a rectangular shape in which a terminal portion provided with electrical terminals for electrical connection is formed on one side, An optical display cell having a flexible flexible sheet structure in a rectangular shape in which a terminal portion having an electric terminal is formed on one side is arranged on a resin substrate in such a state that an optical display surface with its terminal portion positioned in the lateral direction An optical film including at least a polarizer layer having a width corresponding to a lateral width excluding a terminal portion in an arrangement state of a cell motherboard having a configuration and optical display cells arranged on the cell motherboard, A method of using an optical film laminate roll in which a continuous web-shaped optical film laminate, in which a carrier film is adhered via a pressure-sensitive adhesive layer, Is provided.

The method comprises the steps of transferring a plurality of cell motherboards sequentially to the fusing position, feeding the optical film laminate from the optical film laminate roll and transferring the film to the fusing position, The optical film and the pressure-sensitive adhesive layer of the pressure-sensitive adhesive layer are successively formed in the transverse direction at intervals in the longitudinal direction corresponding to the longitudinal dimension in the arrangement state of the optical display cells on the cell motherboard, Forming an optical film sheet supported on the carrier film; peeling the optical film sheet from the carrier film in a state in which the pressure-sensitive adhesive layer remains on the optical film side in the bonding position, moving the peeled optical film sheet in the transport direction To the region of the optical display surface except for the terminal portion of the optical display cell on the cell motherboard. Then, before the optical film sheet is bonded to the optical display cell on the cell motherboard, adjustment of the lateral position and azimuth angle of the cell motherboard with respect to the transport direction is performed so that the optical display cell is moved to the bonding position By aligning the position of the optical film sheet with respect to the transverse direction and the azimuth angle with respect to the conveyed optical film sheet and adjusting the feed of the cell motherboard, the leading end of the sheet of the individual optical film and the corresponding optical display cell Allow the tip to be aligned.

In another aspect of the present invention, the optical film is bonded to the display cell in the transverse direction instead of in the longitudinal direction of the display cell. In this aspect, a method of bonding an optical film sheet to an optical display cell having a rectangular shape in which a terminal portion having an electrical terminal for electrical connection is formed on one side is characterized in that a terminal portion having an electrical terminal for electrical connection is formed on one side A plurality of optical display cells of a rectangular shape formed on the substrate are arranged on a substrate in such a manner that the optical display surfaces located in the lateral direction with the terminal portions are oriented upwardly and at least in the longitudinal direction are arranged on the substrate, And a polarizer layer having a width corresponding to a longitudinal dimension of a row of the plurality of optical display cells arranged in a columnar longitudinal direction on the cell aggregate motherboard, An optical film laminate roll in which an optical film laminate of a continuous web in an integrated state is wound in a roll form is used.

The method includes: transferring a plurality of cell aggregate motherboards sequentially to a fusing position; feeding the optical film laminate from the optical film laminate roll to the fusing position; The optical film and the pressure-sensitive adhesive layer of the optical film of the present invention are sequentially formed in the longitudinal direction at intervals in the longitudinal direction corresponding to the lateral direction excluding the terminal portions of the optical display cells, A step of forming an optical film sheet supported on a carrier film through a pressure-sensitive adhesive layer; and a step of peeling the optical film sheet from the carrier film in a state where a pressure-sensitive adhesive layer remains on the optical film side, , Continuing to a section of the optical display surface except for the terminal portion of the column of thermally arranged optical display cells arranged in the longitudinal direction on the cell aggregate motherboard moving in the transverse direction And separating a plurality of optical display cells on the mother board of the cell aggregated with the optical film sheet into individual cells, and simultaneously, at the longitudinal end of the optical display cell, .

In this method, similarly to the above-described method, the optical film sheet is aligned with the leading optical display cell in the longitudinal direction of the optical display cells arranged in the longitudinal direction on the cell aggregate motherboard The longitudinal position and azimuth angle of the cell aggregate motherboard are adjusted so that the optical display cells are aligned with respect to the longitudinal direction and the azimuth angle with respect to the optical film sheet being transported to the collation position, The leading end of the sheet of the individual optical film and the leading end of the region of the optical surface of the corresponding optical display cell on the cell aggregate motherboard are aligned.

In another aspect of the present invention, after a plurality of optical films are bonded to an optical display cell, longitudinal cutting is performed. According to the aspect of the invention, there is provided a method of manufacturing an optical film laminate, comprising the steps of: transferring a plurality of cell aggregate motherboards sequentially to a fusing position; feeding the optical film laminate from the optical film laminate roll to the fusing position; The optical film is peeled off from the carrier film in a state in which the pressure-sensitive adhesive layer remains on the film side, and the peeled optical film is peeled off from the carrier film except for the terminal portions of the columns of the plurality of optical display cells arranged in the longitudinal direction on the cell aggregate mother board, A step of successively joining a region of the optical display surface to the region of the optical display surface; cutting the optical film in alignment with the transverse end of the row of the optical display cells on the cell aggregate motherboard to which the optical film is bonded; A plurality of optical display cells on a mother board of a cell assembly in which a film sheet is successively joined are separated into individual cells, In the longitudinal ends of the optical display cell, and a step of cutting the optical film cheophap the individual cells. In this method, it is particularly preferable that the terminal portion is located on the side of the optical film on the lateral direction.

Further, in another aspect of the present invention, a plurality of optical film laminated bodies are used. The aspect is a plurality of optical film laminate rolls each having a width corresponding to a longitudinal dimension of a plurality of partial columns of an optical display cell constituting a row of a plurality of optical display cells, A plurality of optical film laminate rolls in which a plurality of optical film laminate bodies of a continuous web shape obtained by bonding a carrier film to a film through a pressure-sensitive adhesive layer are wound in a roll form is used.

Each of the aspects includes a step of sequentially transferring a plurality of cell aggregate motherboards to a fusing position, feeding the plurality of optical film stacks from the plurality of optical film stack rolls to the fusing position, The optical film of the plurality of optical film stacks and the pressure-sensitive adhesive layer thereof are sequentially formed in the longitudinal direction at intervals in the longitudinal direction corresponding to the lateral direction excluding the terminal portions of the optical display cells, A step of forming an optical film sheet supported on a carrier film through a pressure-sensitive adhesive layer between the two infeeds, and a step of forming a plurality of optical film sheets on the carrier film And a plurality of peeled optical film sheets are respectively disposed on a plurality of portions of the optical display cells arranged in the longitudinal direction on the cell aggregate mother board which moves in the lateral direction, A plurality of optical display cells on a mother board of the cell aggregated with the optical film sheet are separated into individual cells, and at the same time, the longitudinal direction of the optical display cells And cutting the optical film bonded to the individual cells at the end. In this method, it is preferable that at least a portion of the plurality of optical film laminate rolls is different from the transverse direction, and that the positions of the plurality of optical film laminate rolls adjacent to each other in the longitudinal direction are different from each other in the transverse direction desirable.

Further, in another aspect of the present invention, the optical film laminate roll having a width corresponding to the longitudinal dimension of the partial row is used to perform sequential bonding for each partial row. The present invention relates to an optical film comprising at least a layer of a polarizer constituting a row of a plurality of optical display cells and having a width corresponding to one longitudinal dimension in a plurality of partial rows of optical display cells, An optical film laminate roll in which an optical film laminate of a continuous web shape in which a carrier film is laminated is wound in a roll form is used.

The method comprises the steps of transferring a plurality of cell aggregate motherboards sequentially to a fusing position, feeding the optical film laminate from the optical film laminate roll to the fusing position, The optical film and the pressure-sensitive adhesive layer of the optical film of the present invention are formed in the longitudinal direction at intervals in the longitudinal direction corresponding to the lateral direction excluding the terminal portions of the optical display cells, A step of forming an optical film sheet supported on a carrier film via a pressure-sensitive adhesive layer; and a step of peeling the optical film sheet from the carrier film in a state where a pressure-sensitive adhesive layer remains on the optical film side, To the region of the optical display surface excluding the terminal portions of the optical display cells arranged in the longitudinal direction on the longitudinal direction on the cell aggregate mother board moving in the < RTI ID = 0.0 > Sequentially joining the optical film sheet and the cell aggregate motherboard by changing the relative position in the longitudinal direction between the optical film sheet and the cell aggregate motherboard; and separating the plurality of optical display cells on the cell aggregate motherboard, And at the same time, cutting the optical film adhering to the individual cells at the longitudinal end of the optical display cell.

In such a case, the optical film and the cell aggregate motherboard may be relatively moved in the longitudinal direction by moving the cell aggregate motherboard. By moving the optical film sheet, the optical film sheet and the cell aggregate motherboard are relatively moved in the longitudinal direction It may be moved.

According to the above aspect of the present invention using the cell aggregation motherboard, it is possible to provide a method of manufacturing an optical film including a polarizer in a plurality of optical display cells thermally arranged in the longitudinal direction on a base material, It is possible to efficiently apply the roll-to-panel (RTP) method to the optical display cell of a relatively small size. In addition, since the alignment of the cell and the optical film sheet is performed by adjusting the cell aggregate motherboard, the position adjustment is facilitated and the adjustment accuracy is improved, as compared with the case where the cell positions are individually adjusted.

Further, in the aspect of the present invention in which the optical film sheet is bonded to the optical display cell having the flexible flexible sheet structure, the optical display cells are arranged on the hard resin base material and the position of the base material is adjusted, And the optical film can be aligned with each other, and high precision can be achieved.

In any of these modes, the optical display cell is transferred to the knocking position in a state in which the terminal portion is transverse to the conveying direction, so that the optical film can be attached to avoid the terminal portion. For this reason, as shown in Fig. 7 of Patent Document 2, it is not necessary to peel off the film at the portion where the terminal portion is covered after the optical film is joined.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an overall configuration of an optical film conjugation system according to one embodiment for carrying out an optical film conjugation method according to the present invention. Fig.
2 is a plan view showing an example of an optical display cell usable in the method of the embodiment of the present invention.
3 is a perspective view schematically showing an example of a manufacturing process of an organic EL display cell.
Fig. 4 shows an example of a cell aggregate motherboard used in the method of the present invention, wherein (a) is a plan view and (b) is a sectional view.
Fig. 5 shows the operation of the position adjusting station. Fig. 5 (a) and Fig. 5 (b) show the operation in which the cell aggregate mother board is transferred from the mother board conveyance to the mother board position adjusting board, The operation of the position adjustment of the first embodiment is shown.
Fig. 6 is a schematic view showing the operation at the motherboard transfer position. Fig.
7 is a plan view showing the reference position of the cell aggregate motherboard on the suction holding and holding plate.
8 (a) and 8 (b) are views showing the operation of transferring the motherboard from the motherboard position adjusting plate to the sucking holding plate.
9 (a), 9 (b), 9 (c) and 9 (d) are views showing respective steps of the surface protective film peeling operation.
10 is a perspective view showing a surface protective film peeling mechanism.
11 is a schematic view of an optical film fusing apparatus.
12 is a cross-sectional view of a film laminate obtained by laminating a carrier film on an optical film.
Figs. 13 (a), 13 (b), 13 (c), 13 (d), and 13 (e) are schematic views showing the order of fusion of optical films in a cell aggregate motherboard according to an embodiment of the present invention.
14 is a perspective view showing an example of a cutting apparatus used in a cutting station.
Fig. 15 schematically shows a transport mechanism for transporting cut display cells.
16 (a), (b) and (c) are schematic views showing the order of fusion of optical films in a cell aggregate motherboard according to another embodiment of the present invention.
Fig. 17 is a perspective view showing an example of a stacking of an optical film in an embodiment in which display cells are arranged in a row. Fig.
18 is a plan view showing an example of a cell motherboard used for bonding an optical film to a display cell having a flexible sheet structure of a large size.
19 is a perspective view showing the operation of bonding the optical film to the cell motherboard shown in Fig.
20 is a schematic view of an optical film fusing apparatus according to another embodiment of the present invention.
Figs. 21 (a), (b) and (c) are schematic views showing the order of fusion of the optical films in the cell aggregate motherboard according to the embodiment shown in Fig.
22 is a schematic view of an optical film fusing apparatus according to another embodiment of the present invention.
23 (a), (b), (c), and (d) are schematic views showing the order of fusion of the optical films on the cell aggregate motherboard according to the embodiment shown in FIG.
24 is a schematic view of an optical film fusing apparatus according to another embodiment of the present invention.
Figs. 25 (a), 25 (b), 25 (c), 25 (d) and 25 (e) are schematic views showing the order of the optical films in the cell aggregate motherboard according to the embodiment shown in Fig.
26 is a schematic view of an optical film fusing apparatus according to another embodiment of the present invention.
27 (a), (b), (c), (d), and (e) are schematic views showing the order of the optical films in the cell aggregate motherboard according to the embodiment shown in FIG.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an overall configuration of an optical film conjugation system according to one embodiment for carrying out an optical film conjugation method according to the present invention. Fig. The optical film binding system according to this embodiment comprises a position adjusting station I, a surface protective film peeling station II, a first surface inspection station III, a polarizer laminate fusing station IV, 2 surface inspection station (V), and cutting station (VI) in this order. The optical display cell 1 is sequentially transported from the station I to the station VI and to each station by a guide having a frequent function running along the guide rail as described later.

Fig. 2 shows an example of the optical display cell 1 usable in the method of the embodiment of the present invention. The optical display cell 1 has a rectangular shape with a short side 1a and a long side 1b and a terminal portion 1c with a predetermined width is formed along one short side 1a. In this terminal portion 1c, a plurality of electrical terminals 2 for electrical connection are arranged. The region excluding the terminal portion 2 of the optical display cell 1 becomes the display region 1d. The display area 1d has a width W in the lateral direction and a length L in the longitudinal direction. In order to implement the method of the present invention, the optical display cell 1 is preferably an organic EL display cell. However, if the terminal portion is formed only on one side of the rectangular shape, the liquid crystal display cell can be applied to the method of the present invention have.

3 is a perspective view schematically showing an example of a manufacturing process of an organic EL display cell. In this step, a glass substrate 3 is first prepared, and a heat-resistant resin material, The polyimide resin is applied to a predetermined thickness and dried, whereby the resin base material 4 is formed. As the heat resistant resin material, besides polyimide resin, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC) and the like can be used. In addition, examples of the material of the substrate include a flexible ceramic sheet as described in Japanese Patent Application Laid-Open No. 2007-157501 (Patent Document 3), Japanese Laid-Open Patent Application No. 2013-63892 (Patent Document 4), Japanese Laid- It is also possible to use a flexible glass as described in JP-A-13250 (Patent Document 5) and JP-A-2013-35158 (Patent Document 6). When the flexible ceramic sheet or the flexible glass is used as a substrate, it is not necessary to use the glass substrate 3.

A plurality of organic EL display cells 1 are formed on the resin base material 4 in a state in which they are arrayed in a vertical and horizontal matrix by a well-known manufacturing method. Thereafter, the surface protective film 5 is bonded so as to cover the organic EL display cell 1 formed on the resin base material 4. Then, Then, the glass substrate 3 is peeled from the resin base material 4 by a known method such as laser irradiation. Techniques for stripping a glass substrate from a resin substrate by laser irradiation are described, for example, in International Publication WO2009 / 104371 (Patent Document 7). The back side protective film 6 is bonded to the resin base material 4 after the glass substrate 3 is peeled off. In the description of the present embodiment, the term "cell aggregate motherboard (B)" refers to a cell aggregate motherboard (B), except for the surface protection film, the resin substrate 4, the display cell 1 formed thereon, Is used as a reference to the laminated structure.

4 (a) is a plan view showing a cell aggregate motherboard B in which the surface protection film 5 is not adhered, and Fig. 4 (b) is a cross-sectional view taken along the line bb in Fig. And the cell assembly motherboard B in a state in which the protective film 5 is bonded. As shown in Fig. 4A, in the cell aggregate motherboard B, a plurality of optical display cells 1 are arranged in a state in which the terminal portion 1a is oriented in the lateral direction, Are arranged in a matrix so as to constitute a row of the direction. As shown in Fig. 4 (a), the cell aggregate mother board B has a rectangular shape having a short side B-1 and a long side B-2, and is provided in the vicinity of both ends of one short side B- The reference mark m as a reference point of the motherboard B is attached by a suitable method such as factoring, stamping or the like. At the time of bonding the optical film, the cell aggregate motherboard B is transported in the direction indicated by the arrow A in Fig. 4 (a), that is, in the longitudinal direction.

5 and 6 show the configuration of the position adjusting station I. As shown in Fig. 5 is a schematic view showing the mother board position adjusting step before the bonding in the position adjusting station I; The cell aggregate motherboard B shown in Fig. 4A is placed on the motherboard transport platform 7 in a state in which the surface protective film 5 is adhered and is transported in the transport direction indicated by the arrow A, And reaches the downward position of the board position adjusting plate 8. The motherboard position control plate 8 is constituted as a vacuum suction plate having a plurality of suction holes (not shown) on its lower surface and the inside thereof connected to a vacuum suction device (not shown) . Further, the motherboard position adjustment plate 8 is supported movably in the horizontal and vertical directions with respect to the conveyance direction, and is also adjustable in the rotational position, i.e., the azimuth direction.

When the cell aggregate motherboard B placed on the motherboard transport platform 7 reaches the downward position of the motherboard position control plate 8, The lower surface thereof is moved downward until it contacts the surface protective film 5 of the cell aggregate motherboard B on the motherboard transport platform 7 and the vacuum suction device operates at that position, The mother board B of the cell assembly is sucked. In this state, the motherboard position adjustment plate 8 ascends upward from the motherboard transport platform 7 and is transported to the motherboard position detection unit shown in Fig. 5 (b). An optical reading device 9 for reading the reference mark m on the mother board B is disposed in the mother board position detecting section and the device 9 reads the reference mark m on the mother board B And the position of the mother board B is determined.

5C is a schematic view exemplarily showing a position AP where the cell assembly motherboard B is read and a reference position RP of the mother board B. The lateral displacement amounts d1 and d2 and the longitudinal displacement amounts d3 and d4 at the positions of the left and right reference signs m are calculated by the comparison between the reading position AP and the reference position RP , And stores the computed displacement amount in a storage means (not shown). Then, the motherboard position adjusting plate 8 is transferred to the transfer position where the sucking and holding plate 10 is waiting.

Fig. 6 is a schematic view showing the operation in the power transmission position. The motherboard position control panel 8 calculates the amount of displacement of the motherboard position control plate 8 based on the amounts of displacement d1, d2, d3 and d4 calculated and stored in the storage means, The vertical and horizontal position and the rotational direction are adjusted. As shown in the plan view in Fig. 7, the coaptive suction holding plate 10 has a rectangular shape having a short side 10a and a long side 10b. In the vicinity of both ends of one short side, a pair (N) is formed by printing, engraving, or other appropriate means. An optical reading device 11 for reading the reference mark n of the sucking and holding plate 10 and detecting the position of the sucking and holding plate 10 is disposed in the transfer position.

As shown in Fig. 7, a large number of suction holes 10a are formed on the upper surface of the suction holding plate 10 in the form of longitudinal and transverse matrices, and these suction holes 10a are formed by a suction suction storage And is connected to a vacuum suction device (not shown) through the inner cavity of the holding plate 10. Shown by the broken line 12 in Fig. 7 is the reference position of the cell aggregate motherboard B on the sucking and holding plate 10. As in the case of the motherboard position adjusting plate 8, the suction holding and holding plate 10 for coaptive suction holding plate 1 is also supported so as to adjust the lateral and longitudinal positions and adjust the azimuth angle in the rotational direction. The position of the reference mark n is read by the optical reading device 11 and is related to the position adjustment of the cell aggregate motherboard B in the replenishment suction holding plate 10 The position is adjusted to the reference position. In this state, the cell aggregate motherboard B adjusted to the reference position at the transfer position is in the state of being aligned in the upward direction with respect to the broken line 12 of the sucking and holding plate 10 adjusted to the reference position .

In this state, the motherboard position adjusting plate 8 for holding the cell aggregate motherboard B is held in the state in which the lower surface of the cell aggregate motherboard B contacts the upper surface of the sucking holding plate 10 Down direction. Then, the vacuum suction apparatus connected to the suction holding plate 10 is operated, and at the same time, the operation of the vacuum suction apparatus connected to the motherboard position control plate 8 is stopped. As a result, the cell aggregate mother board B is positioned at the reference position indicated by the broken line 12 on the sucking and holding plate 10, and the sucking and holding plate 10 is vacuum-sucked It becomes a state to be kept. In other words, the cell aggregate motherboard B is transferred from the motherboard position regulating plate 8 to the sucking holding plate 10 for confluence. Thereafter, the mother substrate position adjusting plate 8 is moved away from the sucking and holding plate 10 to move the cell aggregate motherboard B upward, and the same operation is repeated.

The sucking and holding plate 10 for holding the cell aggregate motherboard B at a predetermined position is then transferred to the surface protective film peeling station II. Fig. 9 is a schematic view showing a configuration of the peeling apparatus in the surface protective film peeling station II. Fig. The sucking and holding plate 10 is supported by a supporting mechanism 13 so as to be able to adjust the position and the rotational direction in the lateral and longitudinal directions as described above, A lifting mechanism (not shown) is provided so that the holding plate 10 can be lifted up and down. The support mechanism 13 is supported by a guide 15 that runs along the guide rail 14 and the guide 15 can be configured as a self-propelled device having a linear motor (not shown).

In the surface protective film peeling station (II), the peeling adhesive tape drive device (16) is arranged in the upward direction of the guide rail (14). The peeling adhesive tape driving apparatus 16 is provided with a tape feeding roll 16a, a tape winding roll 16b and a pair of pressure rolls 16c, The tape 16d is fed out from the tape feeding roll 16a and arranged so as to reach the winding roll 16b through the lower side of the pair of pressing rolls 16c with the adhesive surface downward. The pair of pressing rolls 16c are arranged in the direction in which the guide rails 14 are stretched, that is, in the feeding direction of the cell aggregate motherboard B, at a predetermined height lower than the feeding roll 16a and the winding roll 16b Respectively. Although not shown in the drawing, it is preferable that these pressing rolls 16 are laid down by elastic means such as a spring.

The cell aggregate motherboard B on the sucking and holding plate 10 supported by the guide 15 and the support mechanism 13 is transferred to the surface protective film peeling position at the position shown in Figure 9 (a) And is lifted up to a predetermined height by the lifting mechanism at the position shown in Fig. 9 (b). The predetermined height is a height at which the upper surface of the surface protective film 5 of the cell aggregate motherboard B can contact the adhesive tape 16d located between the pair of pressing rolls 16c at a predetermined contact pressure .

The cell aggregate motherboard B lifted to a predetermined height by the lifting mechanism is conveyed to the lower position of the peeling adhesive tape driving apparatus 16 as it is. Here, the upper surface of the surface protective film 5 of the mother board B comes into contact with the pressure-sensitive adhesive surface of the adhesive tape 16d between the pair of pressure rolls 16c. The adhesive force of the adhesive tape 16d to the surface protective film 5 is larger than the adhesive force of the surface protective film 5 to the optical display cell 1 and therefore the surface protective film 5 is adhered to the adhesive tape 16d And is peeled off from the optical display cell 1 disposed on the resin base material 4. [ The peeled surface protective film 5 is wound together with the adhesive tape 16d by the winding roll 16b. The motherboard B on which the surface protective film 5 has been peeled is lowered to the height at the time of conveyance at the position shown in Fig. 9A by the lifting mechanism at the position shown in Fig. 9 (d) Process.

10 is a perspective view showing an example of a specific configuration of the peeling adhesive tape drive apparatus 16, and two tape drive apparatuses 16 shown in side view in Fig. 9 are arranged in parallel. In order not to complicate the display of the drawings, only elements required for display are shown in Fig. 10, and display cells and the like are omitted. The peeling of the surface protective film 5 is not limited to the mode using the peeling adhesive tape as shown in Figs. 9 and 10, but may be carried out by, for example, It is also possible to adopt another peeling mechanism, such as peeling off a little by pulling the peeled corner portion, for example, by sandwiching it with a clamp, and pulling it backward diagonally.

The process subsequent to the surface protective film peeling process is a surface inspection process. The cell aggregate mother board B on the suction holding storage plate 10 fed out from the surface protective film stripping station II is guided by the guide 15 running along the guide rail 14, And is transported to station III. At this time, the cell assembly motherboard B is in a state in which the display cell 1 formed on the resin substrate 4 is exposed. For this display cell 1, surface inspection is optically performed. 1, the first surface inspection station III is provided with a light source 17 for irradiating light for surface inspection and a light source 17 for receiving light reflected by the display cell 1, A device 18 is provided. The cell aggregate motherboard B that has been inspected is supported on the suction holding plate 10 and transferred to the polarizer laminate body IV for the next process.

Fig. 11 shows an example of the fusing station IV. The sucking and holding plate 10 on which the aggregate motherboard B is mounted is moved from the first surface inspection station III to the bonding station IV by the guide 15 running along the guide rail 14. [ . A mother board position detecting device 19 is provided in the kneading station IV and the mother board position detecting device 19 detects the reference mark mn of the mother board B fed to the kneading station IV, The position information of the motherboard B which has been optically read. This positional information is stored in a storage unit of the control device not shown in Fig. Then, the sucking and holding plate 10 on which the aggregate motherboard B is placed is moved to the knocking position, and is lifted up to a predetermined height by the lifting mechanism of the supporting mechanism 13. [ The control device controls the operation of the indicating device 13 and the guide 15 of the sucking and holding plate 10.

The kneading station (IV) is equipped with a kneading mechanism (20). The biasing mechanism 20 is equipped with an optical film roll 22 in which a long optical film 21 is wound in a roll shape. The optical film 21 is fed out from the optical film roll 22 at a constant speed by a pair of drive rolls 23. In the present embodiment, the optical film 21 is bonded to the polarizing film via a polarizing film of an elongated web type in which a protective film 21b such as a TAC film is bonded to both sides of the polarizer 21a and the pressure-sensitive adhesive layer 21d, And a 1/4 wavelength (?) Retardation film 21c of a long web type. On the outer side of the retardation film 21c, the carrier film 21e is bonded via another pressure-sensitive adhesive layer 21d. The polarizer 21a and the retardation film 21c are arranged so that the absorption axis of the polarizer 21a and the slow axis of the retardation film 21c cross each other at an angle in the range of 45 ° ± 5 °. This optical film 21 is a continuous continuous web shape, but its width is a dimension corresponding to the lateral width W of each display cell disposed on the motherboard B.

The absorption axis of the polarizer 21a is parallel to the longitudinal direction of the polarizer 21a and the slow axis of the retardation polarizer 21a is inclined at 45 ° to the longitudinal direction of the retardation polarizer 21a 5 DEG. For this reason, it is necessary to obliquely stretch the film in the production step of the retardation polarizer 21a. This oblique stretching is described in detail in Japanese Patent Application No. 2013-070787 (Patent Document 8) and Japanese Patent Application No. 2013-070789 (Patent Document 9), and a retardation film stretched by the method described in these documents can be used have. Further, as the retardation film 21c, a film having a reverse dispersion characteristic in which the retardation becomes smaller as the wavelength becomes shorter along the wavelength can be used. The retardation film having the inverse dispersion property is described in Japanese Patent No. 5204200 (Patent Document 10), Japanese Patent No. 5448264 (Patent Document 11), etc. In the method of the present embodiment, the retardation film described in these patent applications A retardation film of the characteristic can be used.

11, the optical film 21 fed from the optical film roll 22 by the pair of drive rolls 23 is guided by the guide roll 24, the dancer roll 25 which moves in the vertical direction, Is fed to the slit forming mechanism 28 via the guide roll 26 and the guide roll 27. The plunge forming mechanism 28 is composed of a cutting cutter 29 and a pair of drive rolls 30 for delivery. The notch forming mechanism 28 stops the driving roll 30 at the infeed forming position and operates the cutting cutter 29 in a state in which the feeding of the optical film 21 is stopped so that the carrier film 21e, And a notch 28a is formed only in the width direction by the optical film 21 alone. The interval of the notches 28a is a distance corresponding to the longitudinal length L of each display cell 1 on the motherboard B. Therefore, the optical film is cut in the width direction by the notches 28a to become the optical film sheet 21f having the lateral width W and the longitudinal length L of the display cell. In this manner, a plurality of optical film sheets 21a are continuously formed on the carrier film 21e, and these optical film sheets 21a are supported on the carrier film 21e and transported to the kneading position.

The dancer roll 25 includes a pair of driving rolls 23 elastically attached upward and continuously driving the optical film 21 in the feeding direction and a pair of driving rolls 23 for feeding the optical film 21 at the time of cutting And a pair of drive rolls 30 for performing driving by a predetermined distance after the end of the cutting operation. That is, in the stop period of the drive roll 30, the dancer roll 25 moves upward as it absorbs the transported portion of the drive roll 23 by the biasing force, and the operation of the drive roll 30 It moves downward against the biasing force by the tensile force added to the optical film 21 by the drive roll 30. [

The series of optical film sheets 21f formed by the infeed 28a are guided by the guide roll 31 and the guide roll 32 in the state of being supported by the carrier film 21e Passes through the dancer roll 33 of the configuration, and is guided by the guide rolls 34, 35, 36, 37 to be transported to the kneading position.

A fusing roll 38 and a carrier film peeling mechanism 39 are provided at the fusing position. The kneading roll 38 is arranged between the upward pulling position and the downward pressing position so as to be movable between the upward pulling position and the downward pushing position and among the continuous optical film sheets 21f supported on the carrier film 21e, When the front end of the sheet 21f is brought into a state of being aligned with the front end of the display cell 1 to be knitted, the optical sheet 21f is lowered from the upward position to the downward pressing position, B on the display cell 1 to perform the fusion.

The carrier film peeling mechanism 39 is provided with a peeling blade that folds the carrier film 21e at an acute angle to peel the leading optical film sheet 21f from the carrier film 21e at the fused position. A carrier film winding roll 40 is disposed to pull the carrier film 21e folded at an acute angle. The carrier film 21e peeled off from the optical film sheet 21f is conveyed to the winding roll 40 via the guide roll 41 and the pair of winding rolls 42, Is wound.

The operation of the drive roll 30 and the cutting cutter 29 is controlled by the above-described control device not shown in Fig. That is, the claim device stores information on the dimension and position of the display cell 1 on the motherboard B, and based on the information of the longitudinal length L of the display cell 1, The drive of the roll 30 and the operation of the cutting cutter 29 are controlled to form a notch 28a in the optical film 21 in the longitudinal direction interval corresponding to the longitudinal length L of the display cell 1 do. A film detecting device 43 for detecting the leading end of the optical film sheet 21f is provided on the upstream side of the fusing position and controls information about the leading end position of the optical film sheet 21f fed to the fusing position Device. This optical film sheet front end positional information is stored in the control device and based on this optical film sheet front end positional information and the positional information of the motherboard B acquired from the suction holding and holding plate 10 The operation of the driving roll 30 and the winding roll 42 is controlled in accordance with the movement of the suction holding plate 10 and the tip of the optical film sheet 21f peeled off from the carrier film 21e Is aligned with the tip end of the display cell 1 on which the bonding on the mother board B at the fused position is performed. When the position alignment is achieved, the optical film sheet 21f and the mother board B are conveyed at a synchronized speed. The kneading roll 38 is lowered to the downward pressing position and the optical film sheet 21f is pressed against the display surface of the display cell 1. [ In this way, the optical film sheet 21f is bonded to the display cell 1.

Fig. 13 is a schematic view showing an example of a procedure in which the optical film sheets 21f are sequentially stacked on the display cells 1 arranged on the motherboard B in a matrix of longitudinal and transverse directions. In this example, the overlapping mechanism 20 is fixed in the transverse direction with respect to the conveying direction, and the sucking and holding plate 10 for holding the mother board B is supported by the support mechanism 13 So as to be movable in the lateral direction. As shown in Fig. 13 (a), the position of the mother board B is controlled such that the display cell 1 at the head of the leftmost display cell row is first positioned at the fused position. In this state, as described above with reference to Fig. 11, the optical film sheet 21f is bonded to the display portion 1d of the display cell 1 of the left adiabatic head.

Subsequently, the motherboard B is displaced in the left and right directions with respect to the conveying direction by a distance corresponding to the lateral spacing of the row of display cells by moving the sucking and holding plate 10 in the lateral direction. By this lateral displacement, as shown in Fig. 13 (b), the display cell 1 at the head of the second column from the left is positioned to the fused position. Then, the optical film sheet 21f is stuck to the display portion 1d of the display cell 1 by the above-described operation. Thereafter, the motherboard B is displaced in the left and right directions by the same operation, and the optical film sheet 21f is bonded. In the case of the example shown in which the display cells 1 are arranged in three columns, the fusion of the optical film sheet 21f to the leading display cell is completed. This state is shown in Fig. 13 (c).

Next, the suction holding plate 10 is driven in the conveying direction by a distance corresponding to the interval between the display cells 1 in each column, and the second display cell 1 from the head of the row at the right end is driven The optical film sheet 21f is stuck to the display portion 1d of the cell 1 as shown in Fig. 13 (d). Thereafter, as shown in Fig. 13 (e), the motherboard B is driven in the transport direction, and the optical film sheet 21f is bonded by the same operation.

When the optical film sheet 21f is completely bonded to all the display cells 1, the motherboard B is held on the suction holding plate 10 at the second surface inspection station V . The configuration of the second surface inspection station V is the same as that of the first surface inspection station III and has a light source 44 for inspection and a light receiving element 45 for receiving reflected light. The mother board B which has undergone the surface inspection in the second surface inspection station V is transferred from the second surface inspection station V to the cutting station VI.

14 is a perspective view showing an example of a cutting apparatus used in the cutting station VI. The cutting apparatus has a vacuum suction table 46 whose inside is connected to a vacuum suction source 49 and a cutting template 47 which is removably mounted on the vacuum suction table 46. And cutting grooves 47a formed at intervals corresponding to the dimensions of the display cells 1 and the arrangement intervals of the display cells 1 on the mother board B. [ Further, the cutting template 47 has a plurality of vacuum suction holes 47b as in the case of the suction holding plate 10 for coalescence. Further, a cutting cutter 48 for cutting the object placed on the cutting template 47 to a predetermined vertical and horizontal dimensions is provided by moving along the cut groove 47a. A plurality of pieces suitable for the dimensions of the display cell 1 are prepared for the cutting template 47 and an appropriate one may be selected according to the size of the display cell to be cut and mounted on the vacuum suction table 45 .

The mother board B transferred to the cutting station VI is transferred from the sucking suction holding plate 10 onto the cutting die plate 47a on the vacuum suction table 45. [ This transfer can be carried out by the same method as the transfer described above with respect to the position adjusting station (I). The motherboard B positioned and vacuum-held on the cutting template 47 moves the cutting cutter 48 along the cut groove 47a of the cutting template 47, (1). In this way, a display cell in which the optical film sheet 21f is adhered to the display portion 1d can be obtained.

The cutting is not limited to the cutting by the cutting cutter 48 as shown in Fig. 14, but may be performed by, for example, a laser cutting mechanism 50 exemplified by the cutting station VI of Fig. 1 or a plurality of cutting cutters The cutting may be performed by a punching mechanism 51 equipped with a punching mechanism. The individual display cells 1 thus cut can be transported to the next step by means of, for example, a vacuum suction and reception conveying mechanism 52 as shown in Fig.

In the above-described embodiment, the optical film having the laminated structure supported by the carrier film 21e is cut into a predetermined length by the cutting mechanism 28 in advance and becomes in the form of the optical film sheet 21f, In the other embodiment of the present invention, the optical film is not cut on the sheet in advance, but the optical film is formed in the form of a continuous strip film, It is transmitted to the whole of the cell and is bonded. In this embodiment, the notch formation mechanism 28 in the biasing mechanism 20 shown in Fig. 11 is not necessary. The coupling according to this embodiment is shown in Fig. As shown in Fig. 16 (a), the mother board B is positioned at a predetermined position in the kneading position at the front end of the display cell 1 at the head of the row at the left end in the feeding direction. The carrier film 21e is peeled off from the optical film 21 and the optical film is successively bonded to the display cell 1 having the left adiabatic heat as described above with reference to Fig. Subsequently, the motherboard B is moved to the left and right in the horizontal and vertical directions to bring the display cell 1 at the head of the second row to the alignment position as shown in Fig. 16 (b), and the same bonding is performed . Likewise, the motherboard B is moved in the left-and-right direction and backward to make the state in which the display cells 1 at the right edge of the first row are aligned with the fused positions as shown in Fig. 16 (b), and the same fusion is performed. The motherboard B thus subjected to the bonding is cut by a cutting mechanism shown in Fig. 14 to obtain individual display cells 1. Fig. By this cutting, the optical film 21 continuously bonded is cut to dimensions corresponding to the dimensions of the display surface 1d of the display cell.

The method of the present invention is also applicable to the fusion of an optical film to the display cell 1 disposed on the first row on the motherboard B. An example thereof is shown in Fig. In this case, the display cell 1 is arranged on the mother board B such that the terminal portion 1c is transverse to the direction of the column. The bonding can be performed by bonding the optical film sheet 21f cut in advance to the display portion 1d of the display cell 1 in the order from the top of the row by the same operation as described with reference to Fig. Alternatively, the optical film 21 may be stuck to the display portion 1d over the entire column display cell 1, and the surplus portion of the optical film 21 may be cut off in a subsequent cutting step.

18 and 19 show an embodiment in which the method of the present invention is applied to the fusion of an optical film to a display cell of a relatively large size flexible sheet structure. When the display cell is an organic EL cell, the cell itself can be formed into a thin flexible sheet structure. In the case of such an optical display cell having a flexible sheet structure, it is difficult to perform the optical film fusion by the ordinary roll-to-panel (RTP) technique because of its thinness and flexibility. According to this embodiment of the present invention, the optical film can be bonded to the optical display cell having the relatively large-size flexible sheet structure by using the above-described method.

18, the optical display cell 60 of a flexible sheet structure is a rectangular shape having a short side 60a and a long side 60b and has a terminal portion 60c located along the short side 60a, And a display portion 60d having a length L and a width W in the lateral direction. This display cell 60 is formed on a base material 61 made of a heat-resistant resin material such as polyimide in the manufacturing step. The manufacturing process is the same as the process described with reference to Fig. 3, in which a resin substrate 61 is formed in a film form on a glass substrate, and an optical display cell 60 such as an organic EL display cell is formed thereon . 3, one display cell is formed on the substrate 61 in the present embodiment. 3, an optical display cell 60 is formed on a substrate 61, a surface protective film is bonded to the upper surface of the display cell 60, and then a substrate (e.g., 61 are peeled off from the glass substrate. Thereafter, a protective film is also applied to the back surface of the substrate 61 to form the cell motherboard B. The cell motherboard B is held in the suction holding and holding plate 10 through the same processes as those described with reference to Figs. 5, 6, 7, 8, 9, And is transferred to the kneading station IV.

In this embodiment, a mechanism similar to the coupling mechanism 20 shown in Fig. 11 can be adopted. In this case, the optical film 21 fed out from the optical film roll 22 has a width corresponding to the width W of the display cell 60 shown in Fig. Fig. 19 schematically shows the structure of the mating portion. The action in the mating portion is the same as that described above with reference to Fig.

In the embodiment described with reference to Fig. 16, the optical film is longitudinally bonded to the display cell, but in another aspect of the present invention, the optical film sheet is stuck in the transverse direction. Fig. 20 shows a schematic view of the assembly according to this embodiment. As shown in Fig. 20, in this embodiment, the display cells are arranged in a matrix so that the terminal portions are positioned in the transport direction 72. Fig. That is, in the present embodiment, the transport direction 72 is the transverse direction of the display cell, and the direction perpendicular to the transport direction 72 is the longitudinal direction of the display cell. In this embodiment, in order to adhere the optical film sheet 21f in the transverse direction with respect to the entire column 70 of the display cells arranged in the longitudinal direction, the width of the optical film 21 is set to be a width Corresponds to the longitudinal dimension of the column 70 of cells. Here, the term " corresponding " to the longitudinal dimension of the column 70 of display cells does not mean strictly coincidence, but includes the longitudinal dimension of the columns 70 of the display cells, For example, the width of the optical film may be determined on the basis of the longitudinal dimension. In this embodiment, the optical film 21 is cut by leaving the carrier film 21e by the notch forming mechanism 28, and the optical film sheet 21f is formed. The interval of cutting corresponds to the lateral width W of the display surface 1d of the display cell 1. The optical film 21 is cut in the width direction by the notches 28a so that the width W of the display surface 1d of the display cell 1 and the width 70 of the column 70 of the display cell 1, The optical film sheet 21f has a length corresponding to the entire longitudinal length of the optical film sheet 21f.

Fig. 21 is a schematic diagram showing an example of the sequence of the sequence relating to the embodiment shown in Fig. 21 (a), the tip of the display surface 1d of the display cell in the first row is moved to the bonding position at the tip of the optical film sheet 21f . The carrier film 21e is peeled off from the optical film sheet 21f so that the adhesive layer 21d is left on the optical film sheet 21f side so that the optical film sheet 21f is placed on the display surface (1d) in the transverse direction. Then, the motherboard B is moved forward to bring the display cells 1 of the second row to be matched to the fused positions as shown in Fig. 21 (b), and the same fusion is performed. Likewise, the motherboard B is moved forward to bring the display cells 1 in the third row to be matched to the bonding positions as shown in Fig. 21 (c), and the same bonding is performed. The motherboard B thus subjected to the bonding is cut by a cutting mechanism shown in Fig. 14 to obtain individual display cells 1. Fig. By this cutting, the continuously adhered optical film sheet 21f is cut to dimensions corresponding to the dimensions of the display surface 1d of the display cell. In the present embodiment, since the motherboard B only moves forward and there is no need to move the motherboard B back and forth, a plurality of display cells arranged in a matrix on the motherboard can be joined in a short time . It is possible to perform bonding to all the display cells on the motherboard only by forward movement by using a plurality of fusion mechanisms for bonding the optical films in the longitudinal direction. However, when a plurality of fusion mechanisms are used, And if any one of the coupling mechanisms fails, the entire coupling device is stopped, so that the operation becomes unstable. Further, the plurality of fusion mechanisms increase the cost of the production apparatus. Incidentally, the embodiment shown in Fig. 21 is the same as the embodiment shown in Fig.

In the embodiment shown in Fig. 20, the optical film 21 is cut by the lateral width of the display surface 1d to form the optical film sheet 21f before the bonding, In another embodiment, after the optical film 21 is continuously bonded to the display surface 1d of the display cell 1 in the transverse direction, the optical film 21 is cut, and the optical film sheet 21f is cut . The optical film 21 may be cut in alignment with the rear end of the display cell 1 in the transverse direction, but the surplus portion of the optical film sheet 21f may be cut off in the cutting step in the subsequent cutting station VI The excess portion of the optical film 21 may be left and cut off near the rear end of the display surface 1d. The presence of the terminal portion 1c behind the transverse direction cuts the optical film 21 on the terminal portion 1c and tends to damage the terminal portion 1c, It is preferable to dispose it so as to be located at the tip side.

In another aspect of the present invention, the optical film sheet is the same as the embodiment shown in Fig. 20 in that the optical film sheet is adhered to the lateral direction of the display cell, but differs in that a plurality of optical film rolls are used. Fig. 22 shows a schematic view of the assembly according to this embodiment. In this embodiment, the widths of the two optical film rolls 22-1 and 22-2 correspond to the two partial columns 70-1 and 70-2 of the display cells constituting the columns 70 of the display cells, And the entire width of the two optical film rolls 22-1 and 22-2 corresponds to the longitudinal dimension of the row 70 of display cells. The optical films 21-1 and 21-2 are also cut by leaving the carrier films 21e-1 and 21e-2 by the infeed forming mechanism 28 so that the optical film sheets 21f- 21f-2 are formed. The interval of cutting corresponds to the lateral width W of the display surface 1d of the display cell 1. Therefore, the optical films 21-1 and 21-2 are cut by the lateral width W of the display surface 1d of the display cell 1 and the partial width 70-1 of the display cell 1 1 and 21f-2 having sides corresponding to the longitudinal lengths of the optical film sheets 21f-1 and 21f-2. In this embodiment, two identical optical film rolls are used, but a different number of film rolls such as three may be used, or optical film rolls of different widths may be used. Further, as in the case of using one optical film roll, the optical film may be cut after the optical film is attached to the display cell.

Fig. 23 is a schematic view showing an example of a sequence of the association in the sun shown in Fig. 22. Fig. The fusion is performed by the fusion method as shown in Fig. 20. 23 (a), the front end of the optical film sheet 28-1 is moved to the front of the display screen 1 of the first row of display cells 1, The display cell 1 belonging to the partial column 70-1 is subjected to the bonding. 1, the carrier film 21e-1 is peeled off from the optical film sheet 21f-1, and the optical film sheet 21f-1 is peeled off from the optical film sheet 21f- Are successively joined to the display surface 1d of the first row of display cells 1 in the horizontal direction. At this time, since the bonding position of the optical film sheet 28-2 is located on the sending side of the two-row optical film sheet 28-1 in the lateral direction (conveying direction) No fusion of the optical film sheet 21f-2 is performed on the display cell 1. 23 (b), the display cell 1 of the second column of partial columns 70-1 is moved in the direction of the optical film sheet 28-1 ), And the same bonding is performed. Further, the motherboard B is moved forward so that the display cell 1 of the third row is aligned with the knocking position as shown in Fig. 23 (c). At this time, since the tip of the optical film sheet 28-2 is aligned with the tip of the display surface 1d of the first-row display cell of the partial column 70-2, the third column of partial columns 70- 1) and the display cell in the first column of the partial column 70-2 are simultaneously subjected to the bonding. 23 (d), the display cell 1 of the fourth column of partial columns 70-1 is moved in the direction of the optical axis of the optical film sheet 28-1 And the display cell 1 of the second column of partial columns 70-2 is matched to the bonding position of the optical film sheet 28-2 and the same bonding is performed. The motherboard B to which the optical film sheet is bonded to all the display cells in this way is cut by the cutting mechanism shown in Fig. 14 to obtain individual display cells 1. Unlike the above embodiment, the coupling mechanism may be arranged at the same position with respect to the lateral direction. 22, there is a coupling mechanism having a peeling means, a support member of a kneading roll, or the like around the actual kneading position. Therefore, by disposing the optical film at a different position from the lateral direction for each optical film roll, it becomes easy to secure the arrangement space of such a joining mechanism. Particularly, since adjacent joining mechanisms are problematic for securing the arrangement space, it is preferable that only the joining position corresponding to the adjacent optical film roll is different from the lateral direction. In this embodiment, although the positions of the optical film rolls 22-1 and 22-2 are different by two lines in the lateral direction, the present invention is not limited to this. For example, Maybe.

According to another aspect of the present invention, an optical film roll having a width corresponding to the partial column of the display cell is used, but the bonding position of the optical film sheet and the motherboard are relatively moved in the longitudinal direction, So that the optical film sheet is bonded to the display cells in a row. That is, after the optical film sheet is stuck to the partial column of the display cell, the display cell (mother board) and the optical film sheet are relatively moved in the longitudinal direction by a distance corresponding to the partial column of the display cell, The front end of the display surface of the display cell constituting the non-conjugated partial row is matched to the bonding position of the optical film sheet. Fig. 24 shows an embodiment in which the optical film sheet 28f and the motherboard B are moved relative to each other by moving the motherboard B in the longitudinal direction. In the embodiment shown in Fig. 24, the optical film roll 22 corresponds to the longitudinal dimension of the partial row 70-1 (70-2). The optical film 21 is cut by leaving the carrier film 21e by the notch forming mechanism 28 to form the optical film sheet 21f. The interval of cutting corresponds to the lateral width W of the display surface 1d of the display cell 1. Therefore, the optical film 21 is cut in the width direction by the notches 28a, and the longitudinal direction lengths of the lateral width W and the partial columns 70-1 (70-2) of the display cell 1 And the optical film sheet 21f has sides corresponding to the optical film sheet 21f.

Fig. 25 is a schematic view showing an example of the order of association in the sun shown in Fig. 24. Fig. As shown in Fig. 25 (a), by moving the suction holding retention plate 10, the mother board B is moved so that the first row of display cells arranged in a matrix on the mother board B And the optical film sheet 21f is aligned with the bonding position. Then, as shown in Fig. 25 (b), the partial column 70-1 on the left side seen from the feeding direction of the first column of the display cell is aligned with the bonding position of the optical film sheet 21f. That is, the front end of the display surface 1d of the display cell 1 belonging to the partial column 70-1 is aligned with the front end of the optical film sheet 28f. Then, the optical film sheet 28f is successively bonded to the display surface 1d of the display cell 1 belonging to the partial column 70-1 in the transverse direction. After this assembly, the motherboard B is moved in the longitudinal direction (leftward in the conveying direction) by the longitudinal dimension of the partial row, and as shown in Fig. 25 (c), the right- The display cell belonging to the column 70-2 is aligned with the optical film sheet at the bonding position. The motherboard B is moved rearwardly in the longitudinal direction by the lateral width W of the display surface 1d as well as in the longitudinal direction because the motherboard B moves in the lateral direction for the sake of fusion. In the opposite direction). Then, the optical film sheet 21f is bonded to the display cell 1 belonging to the partial column 70-2. When the optical film sheet 28f is attached to all the display cells in the first row, the motherboard B is moved in the longitudinal direction (rightward in the conveyance direction) and forward in Fig. 25 (d) ) To the conjugate position, and the optical film is bonded to the display cell 1 belonging to the second column of partial columns 70-1. The motherboard B is moved similarly to the first column so that the optical film sheet 28f is bonded to the display cell belonging to the second column of partial columns 70-2 as shown in Fig. 25 (e). The fact that the motherboard B in which the optical film sheet 28f is bonded to all the display cells 1 is cut by the cutting mechanism shown in Fig. 14 to obtain the individual display cells 1, Other forms are the same.

Fig. 26 shows an embodiment in which the optical film sheet is moved to perform the relative movement in the longitudinal direction. In this embodiment, the fusion mechanism 20 is designed to be movable in the longitudinal direction, and the fusion mechanism 20 is moved in the longitudinal direction so that the fusion position of the optical film is positioned at the position of the tip side of the display cell to be fusion- 24 < / RTI > < RTI ID = 0.0 > 25 < / RTI >

Fig. 27 is a schematic view showing an example of the sequence of the sequence relating to the embodiment shown in Fig. 26; Fig. The motherboard B is moved so that the display surface 1d of the first row of display cells 1 of the display cell 1 arranged in a matrix on the mother board B And the front end of the optical film sheet 28f are aligned with each other in the transverse direction. 27 (b), by moving the optical film sheet 28f in the longitudinal direction by the movement of the biasing mechanism 20, the tip of the optical film sheet is moved to the first row of partial rows (70-1) in the longitudinal direction. That is, the display surface 1d of the display cell belonging to the partial column 70-1 is aligned with the tip of the optical film sheet 28f. Then, the optical film sheet is successively joined in the transverse direction to the partial row 70-1 positioned on the left side in the feeding direction of the first row. After this assembly, the optical film sheet 21f is moved in the longitudinal direction (rightward in the conveyance direction) by the longitudinal dimension of the partial row by the movement of the coupling mechanism 20, and as shown in Fig. 27 (c) The alignment position is matched to the display cell 1 belonging to the partial column 70-2 on the right side in the conveying direction of the first column. The motherboard B is moved rearward (in a direction opposite to the coupling direction) by the lateral width W of the display surface 1d because the motherboard B is moved in the lateral direction for the purpose of coupling . Then, the optical film sheet 28f is bonded to the display cell 1 belonging to the partial column 70-2. The optical film sheet 28f is placed on all the display cells in the first row to move the joining mechanism 20 in the longitudinal direction (leftward in the conveying direction) and move the motherboard B forward, d, the second column of partial columns 70-1 is aligned with the bonding position, and the optical films are bonded to the display cells belonging to the second column of partial columns 70-1. The motherboard B is moved in the same manner as the first column so that the optical film sheet 28f is placed on the display cell 1 belonging to the second column of partial columns 70-2, . In the present embodiment, since the motherboard B is not moved in the longitudinal direction, the size of the longitudinal direction of the kneading station IV can be reduced, and space can be saved.

25 and Fig. 27, the respective columns are combined from the display cell 1 belonging to the partial column 70-1, but the columns may be subjected to other sequence bonding. For example, the second column is subjected to the bonding from the display cells belonging to the partial column 70-2 to move the motherboard B or the optical film sheet in the longitudinal direction when the column moves from the first column to the second column There is no need. That is, longitudinal alignment of the optical display film and the display cell between the rows can be omitted. In the embodiment shown in Figs. 25 and 27, the columns of six display cells 1 per column are subjected to two times of bonding with respect to the three display cells 1, so that one column of display cells 1 ), The optical film sheet 28f may be bonded to the two display cells three times. It is also possible to perform the bonding to one display cell six times, and when there is no surplus optical film remaining on the display surface 1d, it is not necessary to cut the optical film in the cutting station VI . Incidentally, in any form, the number of display cells per row may be plural, and is not limited to six.

Incidentally, in the embodiment shown in Figs. 20 to 26, the configuration other than the fusing station IV is the same as the embodiment described with reference to Fig. 1 to Fig.

While the present invention has been shown and described with reference to specific embodiments thereof, the present invention is not limited to the illustrated embodiments, but the scope of the present invention is defined solely by the claims of the claims.

I. Positioning Station II. Surface protective film peeling station
III. First Surface Inspection Station IV. Polarizer laminate bonding station
V. Second Surface Inspection Station VI. Cutting station
W. Width in the lateral direction L. Length in the longitudinal direction
B. Cell assembly motherboard 1. Optical display cell
1a. Short side 1b. Long side
1c. Terminal part 1d. Display portion
3. Glass Substrate 4. Substrate
5. Surface protection film 6. Back protection film
7. Motherboard transport platform 8. Motherboard position control panel
10. Attachment suction holding plate 10a. Suction hole
12. Reference position of the cell assembly motherboard 20. The fusion mechanism
21. Optical film 21a. Polarizer
21c. 1/4 wavelength retardation film 21e. Carrier film
21f. Optical Film Sheet 22. Optical Film Roll
28. Inserting mechanism 28a. Infeed
29. Cutting cutter 38. Kneading roll
39. Carrier film peeling mechanism 46. Vacuum suction unit
47. Cutting template 47a. Cutting groove
47b. Vacuum suction ball 48. Cutting cutter
49. Vacuum suction source

Claims (34)

As a method of bonding an optical film sheet to a rectangular optical display cell having a terminal portion provided with electrical terminals for electrical connection formed on one side,
A plurality of rectangular optical display cells each having a terminal portion provided with an electrical terminal for electrical connection are formed on one side and a plurality of optical display cells each having a rectangular shape in a longitudinal direction in a state in which the optical display surface, An array of motherboards arranged in parallel on the substrate,
An optical film comprising at least a polarizer layer having a width corresponding to a transverse width except for the terminal portion in an arrangement state of the optical display cells arranged in a longitudinal direction on the cell aggregate motherboard , An optical film laminate roll in which a continuous web-shaped optical film laminate in which a carrier film is adhered via a pressure-sensitive adhesive layer is wound in a roll form is used,
Sequentially transferring a plurality of the cell aggregate motherboards to an adhesion position,
Feeding the optical film laminate from the optical film laminate roll to the bonding position,
The optical film laminate having the optical film laminated body and the pressure-sensitive adhesive layer of the optical film laminate are laminated in a longitudinal direction corresponding to the longitudinal dimension in the arrangement state of the optical display cells arranged in the longitudinal direction on the cell aggregate motherboard Forming an optical film sheet supported on the carrier film through a pressure-sensitive adhesive layer between two infeeds adjacent to each other in the longitudinal direction;
The optical film sheet is peeled off from the carrier film in a state in which the pressure sensitive adhesive layer remains on the optical film side at the bonding position and the peeled optical film sheet is peeled off from the carrier film in the longitudinal direction on the cell aggregate motherboard Sequentially joining the regions of the optical display surface excluding the terminal portions of the individual optical display cells arranged in rows of the plurality of optical display cells,
Before the bonding of the optical film sheets to the leading optical display cells in the longitudinal direction of the optical display cells arranged in the longitudinal direction on the cell aggregate mother board is performed, So that the optical display cell is positionally aligned with respect to the lateral direction and the azimuth angle with respect to the optical film sheet fed to the kneading position, and the feeding of the cell aggregate motherboard And the front end of the sheet of the individual optical film is aligned with the front end of the corresponding optical display cell on the cell aggregate motherboard by controlling the feeding of the optical film sheet. As a method of bonding an optical film sheet to a rectangular optical display cell having a terminal portion provided with electrical terminals for electrical connection formed on one side,
A plurality of rectangular optical display cells each having a terminal portion provided with an electrical terminal for electrical connection are formed on one side and a plurality of optical display cells each having a rectangular shape in a longitudinal direction in a state in which the optical display surface, An array of motherboards arranged in parallel on the substrate,
An optical film comprising at least a polarizer layer having a width corresponding to a transverse width except for the terminal portion in an arrangement state of the optical display cells arranged in a longitudinal direction on the cell aggregate motherboard , An optical film laminate roll in which a continuous web-shaped optical film laminate in which a carrier film is adhered via a pressure-sensitive adhesive layer is wound in a roll form is used,
Sequentially transferring a plurality of the cell aggregate motherboards to an adhesion position,
Feeding the optical film laminate from the optical film laminate roll to the bonding position,
The optical film is peeled from the carrier film in a state in which the pressure-sensitive adhesive layer remains on the optical film side at the fused position, and the peeled optical film is moved in the longitudinal direction on the cell aggregate motherboard Continuously joining a region of the optical display surface except the terminal portions of the plurality of optical display cells arranged;
A plurality of optical display cells on the cell aggregate mother board to which the optical film is continuously bonded is divided into individual cells and at the same time the optical films bonded to the individual cells are cut at the longitudinal end of the optical display cells , ≪ / RTI >
Before the bonding of the optical film sheets to the leading optical display cells in the longitudinal direction of the optical display cells arranged in the longitudinal direction on the cell aggregate mother board is performed, So that the optical display cell is positionally aligned with respect to the lateral direction and the azimuth angle with respect to the optical film sheet fed to the kneading position, and the feeding of the cell aggregate motherboard And the front end of the sheet of the individual optical film is aligned with the front end of the corresponding optical display cell on the cell aggregate motherboard by controlling the feeding of the optical film sheet. 3. The method according to claim 1 or 2,
Wherein a plurality of longitudinal rows of the plurality of optical display cells are arranged in parallel on the cell aggregate motherboard and the optical film sheet is bonded to the optical display cells included in each column . The method of claim 3,
Characterized in that the joining of the optical film sheets to the optical display cells included in the respective rows arranged in parallel is performed sequentially for each column. The method according to claim 1,
Wherein a plurality of optical display cells on the cell aggregate motherboard are arranged in a matrix arrangement in which a plurality of rows of longitudinal rows of the optical display cells are arranged in parallel on a plurality of rows, After the fusion of the optical film sheet with respect to the optical display cell at the head in the conveying direction in the first row of the first row is performed, the cell aggregate motherboard is moved in the lateral direction and the rearward direction, The front end of the optical display cell at the head of the transport direction of the longitudinal second row is aligned with the front end of the optical film sheet to be fed to the fused position to perform the fusion of the optical film sheet with respect to the optical display cell, When the bonding of the optical film sheets to the optical display cells in the head row of all the columns is completed, the cell aggregate motherboard The optical film sheet is advanced to the transporting direction and the optical film sheet is bonded to the optical display cell located in the second row of each column by the same operation and the same operation is repeated in turn to obtain an optical film for all the optical display cells And the sheet is subjected to the bonding. 6. The method according to any one of claims 1 to 5,
Wherein the substrate is flexible. The method according to claim 6,
Wherein the base material is formed by a heat-resistant resin material. The method according to claim 6,
Wherein the substrate is a flexible ceramic sheet or a flexible glass sheet. 9. The method according to any one of claims 1 to 8,
Wherein the optical display cell is an organic EL display cell. 9. The method according to any one of claims 1 to 8,
Wherein the optical display cell is a liquid crystal display cell. 9. The method according to any one of claims 1 to 8,
Wherein the optical film is composed of a polarizer and a retardation film bonded to the polarizer, wherein the optical film is positioned on a side of the retardation film in contact with the pressure-sensitive adhesive layer, Wherein the display surface is bonded to the display surface. 12. The method of claim 11,
Wherein an absorption axis of the polarizer and a slow axis of the retardation film intersect at an angle within a range of 45 占 占. 13. The method of claim 12,
Wherein the absorption axis of the polarizer is parallel to the longitudinal direction of the optical film, and the slow axis of the retardation film is inclined at an angle to the longitudinal direction of the optical film. 14. The method according to any one of claims 10 to 13,
Wherein the retardation film is a reverse dispersion film whose retardation with respect to short wavelength light is smaller than the retardation with respect to long wavelength light. A method of bonding an optical film sheet to an optical display cell having a flexible flexible sheet structure in a rectangular shape having terminal portions provided with electrical terminals for electrical connection formed on one side,
An optical display cell having a flexible flexible sheet structure in a rectangular shape having terminal portions provided with electrical terminals for electrical connection is formed on one side of the resin substrate in such a state that the optical display surface, A cell motherboard having a configuration arranged on the substrate,
And a polarizer layer having a width corresponding to a transverse width in the arrangement state of the optical display cells arranged on the cell motherboard except for the terminal portion, An optical film laminate roll in which a film of an optical film laminate of a continuous web shape in which a film is laminated is wound in a roll form,
Transferring a plurality of the cell mother boards sequentially to a bonding position,
Feeding the optical film laminate from the optical film laminate roll to the bonding position,
With respect to the optical film laminated body and the pressure-sensitive adhesive layer of the optical film laminate thus fed, a gap in the longitudinal direction corresponding to the longitudinal dimension in the arrangement state of the optical display cells on the cell motherboard, Sequentially forming an optical film sheet supported on the carrier film through a pressure-sensitive adhesive layer,
The optical film sheet is peeled from the carrier film in a state in which the pressure-sensitive adhesive layer remains on the optical film side at the fused position, and the optical film sheet peeled off is transported in the transport direction, To a region of the optical display surface excluding the terminal portion of the optical display surface,
The lateral position and the azimuth angle of the cell motherboard with respect to the transport direction are adjusted before the optical film sheet is bonded onto the cell motherboard with respect to the optical display cell, Position of the optical film sheet to be transported to the position of the optical film sheet to be aligned with respect to the transverse direction and azimuth angle of the optical film sheet to be transported to the position, So that the tip of the optical display cell is aligned. As a method of bonding an optical film sheet to a rectangular optical display cell having a terminal portion provided with electrical terminals for electrical connection formed on one side,
A plurality of rectangular optical display cells each having a terminal portion provided with an electrical terminal for electrical connection are formed on one side and a plurality of optical display cells each having a rectangular shape in a longitudinal direction in a state in which the optical display surface, An array of motherboards arranged in parallel on the substrate,
The optical film comprising at least a polarizer layer having a width corresponding to a longitudinal dimension of a row of the plurality of optical display cells arranged in a longitudinal direction on the cell aggregate motherboard, An optical film laminate roll in which a laminated optical film laminate of the continuous web in the form of a laminate is rolled,
Sequentially transferring a plurality of the cell aggregate motherboards to an adhesion position,
Feeding the optical film laminate from the optical film laminate roll to the bonding position,
The optical film laminate having the extruded optical film laminate and the pressure-sensitive adhesive layer thereof are sequentially formed in the longitudinal direction at intervals in the longitudinal direction corresponding to the lateral direction excluding the terminal portions of the optical display cells, Forming an optical film sheet supported on the carrier film through a pressure-sensitive adhesive layer between two infeeds adjacent to the direction of the pressure;
The optical film sheet is peeled from the carrier film in a state in which the pressure-sensitive adhesive layer remains on the optical film side, and the peeled optical film sheet is peeled off from the carrier film in the longitudinal direction on the cell aggregate motherboard Continuously joining the region of the optical display surface except for the terminal portion of the row of the optical display cells arranged in the columnar form of the optical display cell,
A plurality of optical display cells on the cell aggregate mother board to which the optical film sheet is adhered is separated into individual cells and at the same time the optical film adhered to the individual cells is cut at the longitudinal end of the optical display cell ≪ / RTI >
Wherein before the bonding of the optical film sheet to the leading optical display cell in the longitudinal direction of the optical display cells arranged in the longitudinal direction on the cell aggregate motherboard, So that the optical display cell is positionally aligned with respect to the longitudinal direction and the azimuth angle with respect to the optical film sheet fed to the kneading position, The leading edge of the sheet of the individual optical film and the leading edge of the area of the optical surface of the corresponding optical display cell on the cell aggregate motherboard are aligned by controlling the transport of the optical film sheet. As a method of bonding an optical film sheet to a rectangular optical display cell having a terminal portion provided with electrical terminals for electrical connection formed on one side,
A plurality of rectangular optical display cells each having a terminal portion provided with an electrical terminal for electrical connection are formed on one side and a plurality of optical display cells each having a rectangular shape in a longitudinal direction in a state in which the optical display surface, An array of motherboards arranged in parallel on the substrate,
The optical film laminate having a continuous web shape in which a carrier film is adhered to an optical film including at least a layer of a polarizer having a width corresponding to a longitudinal dimension of a row of the plurality of optical display cells, Using an optical film laminate roll,
Sequentially transferring a plurality of the cell aggregate motherboards to an adhesion position,
Feeding the optical film laminate from the optical film laminate roll to the bonding position,
The optical film is peeled from the carrier film in a state in which the pressure-sensitive adhesive layer remains on the optical film side at the fused position, and the peeled optical film is moved in the longitudinal direction on the cell aggregate motherboard Continuously joining a region of the optical display surface except for the terminal portion of the array of the plurality of optical display cells arranged;
Forming an optical film sheet by cutting the optical film in correspondence with a transverse end portion of the row of the optical display cells except the terminal portion on the cell aggregate motherboard to which the optical film is bonded,
A plurality of optical display cells on the cell aggregate motherboard to which the optical film sheets are continuously bonded are separated into individual cells and at the same time the optical films bonded to the individual cells at the longitudinal ends of the optical display cells And cutting,
Wherein before the bonding of the optical film sheet to the leading optical display cell in the longitudinal direction of the optical display cells arranged in the longitudinal direction on the cell aggregate motherboard, So that the optical display cell is positionally aligned with respect to the longitudinal direction and the azimuth angle with respect to the optical film sheet fed to the kneading position, So that the leading end of the sheet of the individual optical film and the leading end of the corresponding optical display cell on the cell aggregate motherboard are aligned by controlling the feeding of the optical film sheet. 18. The method of claim 17,
Characterized in that the terminal portion is located on the transverse side of the optical film. As a method of bonding an optical film sheet to a rectangular optical display cell having a terminal portion provided with electrical terminals for electrical connection formed on one side,
A plurality of rectangular optical display cells each having a terminal portion provided with an electrical terminal for electrical connection are formed on one side and a plurality of optical display cells each having a rectangular shape in a longitudinal direction in a state in which the optical display surface, An array of motherboards arranged in parallel on the substrate,
A plurality of optical film laminate rolls each having a width corresponding to a longitudinal dimension of a plurality of partial columns of optical display cells constituting a row of the plurality of optical display cells, A plurality of optical film laminate rolls in which a plurality of optical film laminate bodies of a continuous web shape in which a carrier film is adhered via a pressure-
Sequentially transferring a plurality of the cell aggregate motherboards to an adhesion position,
Feeding the plurality of optical film stacks from the plurality of optical film stack rolls to the fusing position,
The optical film and the pressure-sensitive adhesive layer of the plurality of optical film laminate layers being fed out are successively formed in the longitudinal direction at intervals in the longitudinal direction corresponding to the lateral direction excluding the terminal portions of the optical display cells Forming an optical film sheet supported on the carrier film through a pressure-sensitive adhesive layer between two infeeds adjacent to each other in the transverse direction;
The plurality of optical film sheets are peeled from the carrier film in a state in which the pressure sensitive adhesive layer remains on the optical film side at the fused position, Continuously joining to a region of the optical display surface excluding the terminal portions of the plurality of partial rows of optical display cells arranged in the longitudinal direction on the mother board,
A plurality of optical display cells on the cell aggregate mother board to which the optical film sheet is adhered is separated into individual cells and at the same time the optical film adhered to the individual cells is cut at the longitudinal end of the optical display cell ≪ / RTI >
Wherein before the bonding of the optical film sheet to the leading optical display cell in the longitudinal direction of the optical display cells arranged in the longitudinal direction on the cell aggregate motherboard, So that the optical display cell is positionally aligned with respect to the longitudinal direction and the azimuth angle with respect to the optical film sheet fed to the kneading position, The leading edge of the sheet of the individual optical film and the leading edge of the area of the optical surface of the corresponding optical display cell on the cell aggregate motherboard are aligned by controlling the transport of the optical film sheet. 20. The method of claim 19,
Wherein the plurality of optical film stacks adjacent to each other in the longitudinal direction are at different positions from each other in the transverse direction. As a method of bonding an optical film sheet to a rectangular optical display cell having a terminal portion provided with electrical terminals for electrical connection formed on one side,
A plurality of rectangular optical display cells each having a terminal portion provided with an electrical terminal for electrical connection are formed on one side and a plurality of optical display cells each having a rectangular shape in a longitudinal direction in a state in which the optical display surface, An array of motherboards arranged in parallel on the substrate,
The optical film comprising at least a layer of a polarizer having a width corresponding to one longitudinal dimension in a plurality of partial rows of optical display cells constituting a row of the plurality of optical display cells, Is laminated on a roll of an optical film laminate of a continuous web shape,
Sequentially transferring a plurality of the cell aggregate motherboards to an adhesion position,
Feeding the optical film laminate from the optical film laminate roll to the bonding position,
The optical film laminate having the extruded optical film laminate and the pressure-sensitive adhesive layer thereof are provided with a gap in the longitudinal direction at intervals in the longitudinal direction corresponding to the lateral direction excluding the terminal portions of the optical display cells, Forming an optical film sheet supported on the carrier film through a pressure-sensitive adhesive layer between two adjacent incisions;
The optical film sheet is peeled from the carrier film in a state in which the pressure-sensitive adhesive layer remains on the optical film side, and the peeled optical film sheet is peeled off from the carrier film in the longitudinal direction on the cell aggregate motherboard To the region of the optical display surface excluding the terminal portion of the thermally arranged optical display cells, wherein the optical film sheet and the cell aggregate motherboard move relative to each other in the longitudinal direction, Sequentially joining columns sequentially,
A plurality of optical display cells on the cell aggregate motherboard to which the optical film sheet is bonded are separated into individual cells, and when a surplus optical film is present, at the longitudinal end of the optical display cell, And cutting the optical film bonded to the optical film,
Wherein before the bonding of the optical film sheet to the leading optical display cell in the longitudinal direction of the optical display cells arranged in the longitudinal direction on the cell aggregate motherboard, So that the optical display cell is positionally aligned with respect to the longitudinal direction and the azimuth angle with respect to the optical film sheet fed to the kneading position, The leading edge of the sheet of the individual optical film and the leading edge of the area of the optical surface of the corresponding optical display cell on the cell aggregate motherboard are aligned by controlling the transport of the optical film sheet. 22. The method of claim 21,
And moving the cell aggregate motherboard such that the optical film sheet and the cell aggregate motherboard move relative to each other in the longitudinal direction. 22. The method of claim 21,
Wherein the optical film sheet and the cell aggregate motherboard are moved in the longitudinal direction by movement of the optical film. 24. The method according to any one of claims 16 to 23,
Wherein a plurality of longitudinal rows of the plurality of optical display cells are arranged in parallel on the cell aggregate motherboard and the optical film sheet is bonded to the optical display cells included in each column . 25. The method of claim 24,
Characterized in that the joining of the optical film sheets to the optical display cells included in the respective rows arranged in parallel is performed sequentially for each column. 26. The method according to any one of claims 16 to 25,
Wherein the substrate is flexible. 27. The method of claim 26,
Wherein the base material is formed by a heat-resistant resin material. 27. The method of claim 26,
Wherein the substrate is a flexible ceramic sheet or a flexible glass sheet. 29. The method according to any one of claims 16 to 28,
Wherein the optical display cell is an organic EL display cell. 29. The method according to any one of claims 16 to 28,
Wherein the optical display cell is a liquid crystal display cell. 31. The method according to any one of claims 16 to 30,
Wherein the optical film is composed of a polarizer and a retardation film bonded to the polarizer, wherein the optical film is positioned on a side of the retardation film in contact with the pressure-sensitive adhesive layer, Wherein the display surface is bonded to the display surface. 32. The method of claim 31,
Wherein an absorption axis of the polarizer and a slow axis of the retardation film intersect at an angle within a range of 45 占 占. 33. The method of claim 32,
Wherein the absorption axis of the polarizer is parallel to the longitudinal direction of the optical film, and the slow axis of the retardation film is inclined at an angle to the longitudinal direction of the optical film. 34. The method according to any one of claims 30 to 33,
Wherein the retardation film is a reverse dispersion film whose retardation with respect to short wavelength light is smaller than the retardation with respect to long wavelength light.

Images