JP6066054B2 - Organic EL sealing device, sealing roll film manufacturing device, and organic EL sealing system - Google Patents

Description

  The present invention relates to an organic EL sealing device, a sealing roll film manufacturing device, and an organic EL sealing system for attaching a sealing film to an organic EL (Electro Luminescence) panel.

  Conventionally, there is a technique described in Patent Document 1 as a technique for attaching a sealing substrate to a panel of an organic EL, a so-called organic light-emitting diode (OLED). When manufacturing an organic EL panel used in an organic EL lighting device or the like, this technology attaches a sealing mother substrate having a plurality of sealing substrates to an element mother substrate having a plurality of element substrates which are OLED substrates. After attaching, it divides | segments for every pair of element substrate and sealing substrate, and obtains one organic EL panel.

  The organic EL panel is characterized in that an organic EL element and a terminal region are formed, an element substrate based on a glass substrate, a sealing member that covers the organic EL element, and an element substrate that is attached to the element substrate via the sealing member. And a first spacer disposed only in a region between the organic EL element and the terminal region. The first spacer suppresses deformation of the organic EL panel due to external stress such as stress concentration in the cutting process and changes in environmental temperature, and suppresses the occurrence of peeling of the sealing member. Furthermore, a decrease in the airtightness of the sealing member due to the peeling is suppressed.

  In addition, by using a roll-to-roll method in which a film wound on a roll is wound on another roll and conveyed, a plurality of sheet-like sealing materials are pasted on a sealing mother substrate, thereby forming a sheet-like sealing material Can be pasted simultaneously in a plurality of rows, and the tact time required for this pasting can be shortened.

WO2010 / 024006

  By the way, in the organic EL panel of Patent Document 1, a roll-to-roll method is used to affix a plurality of sheet-like sealing materials on a sealing mother substrate to improve manufacturing efficiency. However, this is a manufacturing of a sealing substrate, and in order to manufacture an organic EL panel, after sealing the sealing mother substrate to the element mother substrate, it is necessary to divide and obtain one organic EL panel at a time. There is. Therefore, there exists a problem that an organic electroluminescent panel cannot be manufactured efficiently.

  Furthermore, the external stress at the time of division for making a single organic EL panel is absorbed by the first spacer, but as long as the division is necessary, some trouble occurs in the organic EL panel due to the stress due to the division operation. there is a possibility. Therefore, there is a problem that the sealing state in which the sealing substrate is bonded to the element substrate which is an OLED substrate with high accuracy cannot be maintained.

  The present invention has been made in view of such circumstances, and an organic EL sealing device, a sealing device capable of bonding a sealing substrate to an OLED substrate with high accuracy and performing this manufacturing work efficiently. It aims at providing a stop roll film manufacturing apparatus and an organic electroluminescent sealing system.

In order to solve the above problems, the present invention provides a first transport means for transporting an OLED substrate film in which a plurality of OLED substrates are bonded to a long first film by roll-to-roll, and the transport. A first holding means for holding the OLED substrate film in a stopped state; a second conveying means for conveying a sealing roll film in which a plurality of sealing substrates are attached to a long second film by roll-to-roll; The second holding means for holding the conveyed sealing roll film in a stopped state, and the sealing means for sealing the OLED substrate together with the sealing substrate, and the first holding means When the OLED substrate film is held, the OLED substrate bonded to the OLED substrate film is opposed to the sealing substrate bonded to the sealing roll film. Holding the sealing roll film by the second holding means, said by the sealing means, an organic EL sealing apparatus for sealing by bonding OLED substrate and a sealing substrate facing each other, further, the sealing The stopping means includes a voltage applying means and a dielectric plate. The OLED substrate is brought into contact with the sealing substrate while pressing the dielectric plate against the OLED substrate, and the contacted dielectric plate, the OLED substrate and the sealing plate are brought into contact with each other. A voltage is applied between the fixed substrate and the stationary substrate by the voltage applying means, and the electrostatic force generated between the applied substrate and the pressing force in the pressing generates the OLED substrate film to which the OLED substrate is attached. The OLED substrate and the sealing substrate were bonded together with a resultant force of the tension force .

  According to the present invention, an organic EL sealing device, a sealing roll film manufacturing device, and an organic EL sealing system that can attach a sealing substrate to an OLED substrate with high accuracy and can efficiently perform this manufacturing operation. Can be provided.

It is a block diagram which shows the structure of the organic electroluminescent sealing system which concerns on embodiment of this invention. It is a top view of an elongate sealing roll film. It is A1-A1 sectional drawing shown to FIG. 2A. It is a top view of an elongate OLED base film. It is sectional drawing of the organic EL element corresponded to the A2-A2 cross section shown to FIG. 3A. It is a block diagram which shows the main structures which looked at the sealing roll film manufacturing apparatus of this embodiment from the side surface direction. It is a figure which shows the cross-sectional structure of a roll film. It is a block diagram which shows the structure of the control apparatus which performs operation | movement control of the sealing roll film manufacturing apparatus or organic electroluminescent sealing apparatus of this embodiment. It is a block diagram which shows the main structures which looked at the organic electroluminescent sealing device of this embodiment from the side surface direction. It is a figure which shows the start state of sealing substrate bonding operation | movement to the OLED board | substrate by an organic electroluminescent sealing apparatus. It is a figure which shows the completion | finish state of sealing substrate bonding operation | movement to the OLED board | substrate by an organic electroluminescent sealing device. It is a figure which shows the state of peeling operation | movement of the carrier film from the sealing substrate by an organic EL sealing device. It is a flowchart for demonstrating the production operation of the sealing roll film by a sealing roll film manufacturing apparatus. It is a flowchart for demonstrating sealing operation by bonding of the sealing substrate to the OLED substrate by the organic EL sealing device.

Embodiments of the present invention will be described below with reference to the drawings.
<Configuration of organic EL sealing system 10>
FIG. 1 is a block diagram showing a configuration of an organic EL sealing system 10 according to an embodiment of the present invention.
The organic EL sealing system 10 includes a sealing roll film manufacturing device 11, an organic EL sealing device 12, and a heat treatment device 13. The sealing roll film manufacturing apparatus 11 produces the sealing roll film 19 by which the sealing substrate 17 (refer FIG. 2A and FIG. 2B) was affixed on the film base material by roll-to-roll. The organic EL sealing device 12 rolls the sealing substrate 17 of the sealing roll film 19 on the OLED substrate 22 (see FIGS. 3A and 3B) attached to the OLED base film 21 conveyed by roll-to-roll. The OLED sealing film 23 is produced by bonding and sealing while transporting by two rolls. The heat treatment apparatus 13 heats the OLED sealing film 23 and cures it in a state where the sealing substrate 17 seals the OLED substrate 22, thereby producing a product film 24.

  The product film 24 is used for electrical products such as an organic EL lighting device. Accordingly, the sealing substrate 17 is a transparent film colored transparent or with a predetermined color, and is formed by being cut out from the long sealing substrate film 17a (see FIG. 5) as described later.

  2A is a plan view of the elongated sealing roll film 19, and FIG. 2B is a cross-sectional view taken along line A1-A1 shown in FIG. 2A. In the sealing roll film 19, a rectangular sealing substrate 17 is attached to a separator 15, which is a long film, via a pressure-sensitive adhesive layer 16 at a predetermined interval L 1, and further on the sealing substrate 17. A carrier film 18 is affixed to cover the entire surface of the separator 15. The interval L1 is the length from the center of the sealing substrate 17 to the center of the adjacent sealing substrate 17.

FIG. 3A is a plan view of the elongated OLED substrate film 21, and FIG. 3B is a cross-sectional view of an organic EL element corresponding to the A2-A2 cross section shown in FIG. 3A.
As shown in FIG. 3B, the OLED substrate film 21 includes a plurality of OLED substrates 22 formed by laminating each layer of an anode 22a, an organic film 22b, and a cathode 22c on a long substrate film 21a at predetermined intervals. It is pasted. In addition, a low potential voltage is applied between the cathode 22c and the anode 22a by the power source Va, whereby light is emitted as indicated by an arrow Y10. The sealing substrate 17 is bonded from the cathode 22c side of the OLED substrate 22 having such a configuration, and the OLED substrate 22 is sealed so as not to come into contact with moisture or oxygen. However, the sealing substrate 17 is affixed via the adhesive layer 16 as shown in FIG.

Further, it is assumed that the distance between the OLED substrate 22 and the substrate film 21a is a length L1 from the center of the OLED substrate 22 to the center of the adjacent OLED substrate 22, as shown in FIG. 3A. Furthermore, the film width of the OLED substrate film 21 is slightly wider than the film width of the carrier film 18 of the sealing roll film 19 shown in FIG. 2A.
2A, the bonding interval of the sealing substrate 17 to the carrier film 18 in the sealing roll film 19 shown in FIG. 2A is the same as the bonding interval L1 of the OLED substrate 22 to the substrate film 21a of FIG. 3A. It is said.
However, the OLED substrate 22 and the sealing substrate 17 are similar in shape, and the sealing substrate 17 has a larger size that can completely cover the OLED substrate 22 as shown in FIG. 3B.

<Configuration of sealing roll film production apparatus 11>
The sealing roll film manufacturing apparatus 11 is demonstrated with reference to FIG. FIG. 4 is a configuration diagram showing a main configuration of the sealing roll film manufacturing apparatus 11 viewed from the side surface direction.
The sealing roll film production apparatus 11 includes a roll mounting portion 31 on the most upstream side for rotatably setting a roll film 19a wound in a roll shape, and a sealing roll film 19 produced as described later from the roll film 19a. The most downstream film take-up part 32 for taking up the roll in the form of a roll, and guide rollers 33a, 33b, 33c, 33d, 33e, 33f arranged horizontally between the roll attaching part 31 and the film take-up part 32 , 33g, 33h, and guide rollers 33i, 33j, 33k disposed above the guide rollers 33e-33h.

  Further, the sealing roll film manufacturing apparatus 11 seals the nip roller 34a sandwiching the roll film 19a vertically with respect to the horizontal direction and the downstream guide roller 33g together with the upstream guide roller 33b. A nip roller 34b that sandwiches the roll film 19, a dancer roller 35a disposed below the guide rollers 33b and 33c, a dancer roller 35b disposed below the guide rollers 33d and 33e, and a lower portion between the guide rollers 33f and 33g. A dancer roller 35c disposed and a dancer roller 35d disposed below between the guide rollers 33i and 33j.

  Furthermore, the sealing roll film production apparatus 11 includes a roll attachment portion 36 that rotatably sets the carrier film 18 wound in a roll shape, and a pressure-sensitive adhesive tape 38 wound in a roll shape that is attached to one surface of the carrier film 18. And a roll mounting portion 39 for rotatably setting, and laminating rollers 37a and 37b that sandwich and heat both the roll film 19a and the carrier film 18 at a predetermined temperature.

The adhesive tape 38 attached to one side of the carrier film 18 has a property of being attached to the roll film 19a by being heated by the laminating rollers 37a and 37b.
As shown in the sectional configuration of FIG. 5, the roll film 19 a is configured by attaching a sealing substrate film 17 a having the same shape as the separator 15 to the separator 15, which is a long film, via an adhesive layer 16. .

The guide rollers 33a to 33k, the nip rollers 34a and 34b, the dancer rollers 35a to 35d, and the laminate rollers 37a and 37b are also simply referred to as rollers 33a to 33k, 34a, 34b, 35a to 35d, 37a, and 37b.
The carrier film 18, roll film 19a, sealing roll film 19, OLED substrate film 21, OLED sealing film 23, and product film 24 are also simply referred to as films 18, 19a, 19, 21, 23, 24.

  The roll film 19a set on the roll attachment portion 31 is inserted into contact with or between the guide rollers 33a to 33h, dancer rollers 35a to 35c, and nip rollers 34a and 34b, and is set to the roll attachment portion 36. The carrier film 18 is inserted in contact with or sandwiched between the guide rollers 33i to 33k and 33f to 33h, the dancer rollers 35d and 35c, and the laminating rollers 37a and 37b while the adhesive tape 38 is attached to one side. In the passing process by these insertions, both the films 19a and 18 are bonded together by the adhesive tape 38 by heating by the laminating rollers 37a and 37b, and this is wound up by the film winding unit 32 as the sealing roll film 19. Yes.

As described above, the dancer rollers 35a to 35d play a role of applying tension so that the films 19a, 18 and 19 pass up and down and do not sag.
Further, the sealing roll film manufacturing apparatus 11 includes a meandering detection sensor 40a disposed between the upstream guide rollers 33a and 33b and a meandering detection sensor 40b disposed between the downstream guide rollers 33g and 33h. Further, a half-cut mechanism 41, an unnecessary part removing mechanism 42, and a feeder 43 are sequentially provided between the guide rollers 33c and 33d from the upstream side toward the downstream side.

The meandering detection sensors 40a and 40b are meandering detection and correction means that detect meandering of the films 19a and 19 and provide meandering correction units (not shown) to correct meandering.
The half-cut mechanism 41 includes a Thomson blade 41a that is a punching blade on the upper side of the film 19a, and a pedestal 41b on the lower side. 17a and the adhesive layer 16 are configured to be punched into a rectangular shape indicated by a broken line in FIG. 2A. At this time, a positioning mark (to be described later) may be attached to both ends in the transport direction of the sealing substrate 17 punched into a rectangular shape. In the present embodiment, both end edges of the sealing substrate 17 are applied as the mark.

  In addition, although the shape of the sealing substrate 17 punched out by the Thomson blade 41a is a rectangular shape in this embodiment, it may be an arbitrary shape such as a square, a circle, a triangle, or a star. These shapes are the same as the shape of the substrate to which the sealing substrate 17 is bonded (the shape of the OLED substrate 22). Further, a rotary cutter (not shown) may be used in place of the Thomson blade 41a.

  The unnecessary portion removing mechanism 42 includes an adhesive tape portion 42a that can move up and down on the upper side of the film 19a and a pedestal 42b on the lower side, and the adhesive tape portion 42a descends in the direction of the pedestal 42b to form a rectangular shape of the sealing substrate film 17a. It is configured to adhere to unnecessary portions other than, and lift and peel off the adhesive portion. The sealing substrate 17 is produced on the separator 15 by the peeling.

  The feeder 43 is disposed on the upper and lower sides with the film 19a interposed therebetween, and feeds the film 19a by a frame feed in a downstream direction indicated by a predetermined length arrow Y1. In this embodiment, the predetermined length is assumed to be a length L1 shown in FIG. 2A.

However, the conveying operation of each film 19a, 18, 19; the meandering correction operation by meandering detection by the meandering detection sensors 40a, 40b; the operations of the half-cut mechanism 41, the unnecessary part removing mechanism 42 and the feeder 43; the laminating rollers 37a, 37b The operation control related to the sealing roll film manufacturing apparatus 11 such as the temperature adjustment operation is performed by the control apparatus 101 shown in FIG.
That is, the control device 101 includes a CPU (Central Processing Unit) 101a, a ROM (Read Only Memory) 101b, a RAM (Random Access Memory) 101c, and a storage device (HDD: Hard Disk Drive or the like) 101d. The general configuration is connected to the bus 102. In such a configuration, for example, the CPU 101a executes the program 101f written in the ROM 101b to realize the control of the control device 101.

<Configuration of Organic EL Sealing Device 12>
FIG. 7 is a configuration diagram showing a main configuration of the organic EL sealing device 12 as viewed from the side.
The organic EL sealing device 12 is arranged in a vacuum environment, and the most upstream roll mounting portion 51 for rotatably setting the sealing roll film 19 manufactured by the sealing roll film manufacturing device 11. As will be described later, the most downstream film take-up part 52 for taking up the carrier film 18 remaining after the separator 15 and the sealing substrate 17 are peeled from the sealing roll film 19 in a roll shape, the roll attaching part 51 and the film A separator peeling roller 53, a film winding portion 54 for winding the peeled separator 15 in a roll shape, guide rollers 55, 57, 58, a dancer roller 56, which are arranged between the winding portion 52, A sticking roller 61 a of the sealing substrate sticking mechanism 61, peeling rollers 63 a and 63 b of the carrier peeling mechanism 63, and a nip roller 64 are provided.

  However, the organic EL sealing device 12 is disposed in a vacuum environment. This is because the OLED substrate 22 described later deteriorates due to moisture or oxygen, and when the sealing substrate 17 is bonded to the OLED substrate 22. One object is to improve the adhesion. The organic EL sealing device 12 may be disposed in a nitrogen (N 2) environment other than in a vacuum environment. That is, it is sufficient if the OLED substrate 22 and the sealing substrate 17 are in an environment where they do not come into contact with air and moisture. However, when the arrangement environment of the organic EL sealing device 12 is in a vacuum, a configuration in which the OLED substrate film 21 is transported as it is from the previous step of the vacuum environment in which the OLED substrate film 21 is transported (a transport configuration from vacuum to vacuum) Therefore, the conveyance and sealing work environment can be easily configured.

  The guide rollers 55, 57, 58, the dancer roller 56, the sticking roller 61a, the peeling rollers 63a, 63b, and the nip roller 64 are also simply referred to as rollers 55-58, 61a, 63a, 63b, 64.

  The separator peeling roller 53 is disposed adjacent to the guide roller 55 above the roll mounting portion 51, and the sealing roll film 19 is passed between the rollers 53, 55, and the separator 15 of the sealing roll film 19 is moved to the roller 53. The film is taken up by the film take-up section 54 along the arc. Further, the carrier film 18 and the sealing substrate 17 attached to the carrier film 18 with the adhesive tape 38 are sent to the downstream side in the arrow Y2 direction via the guide roller 55.

  The carrier film 18 to which the sealing substrate 17 to be fed is attached passes through the rollers 56 and 57 to the application roller 61a, and the carrier is applied to the OLED substrate 22 as will be described later. The film 18 is transferred from the film 18 to the OLED substrate 22, and the remaining carrier film 18 is wound around the film winding section 52 through the rollers 61 a, 63 a, 63 b, 58 and 64.

  The sealing substrate sticking mechanism 61 and the carrier peeling mechanism 63 are attached to the upper surface of the lower table 66 disposed horizontally on the lower side of the organic EL sealing device 12, as indicated by the bidirectional arrow Y3. Attached so as to be movable along the attached carrier film 18 from the downstream side to the upstream side or from the upstream side to the downstream side, and also in the vertical direction.

In addition, the organic EL sealing device 12 includes an electrostatic chuck plate 68 fixed to the upper table 67 at a position facing the upper OLED substrate film 21 as viewed from the lower table 66. The upper table 67 can move up and down.
The electrostatic chuck plate 68 is a dielectric plate provided with a voltage applying means, and a voltage is applied between the dielectric plate and the OLED substrate 22 and the sealing substrate 17 which are the objects to be attracted by the voltage applying means. The OLED substrate 22 is adsorbed by the electrostatic force generated between the two.

  On both upstream and downstream sides of the electrostatic chuck plate 68, film clampers 69a and 69b for holding (clamping) the OLED base film 21 in a stationary state are provided. Furthermore, on the upstream side of the guide roller 57 above the lower table 66, a film clamper 71a for holding (holding) the carrier film 18 with the sealing substrate 17 attached to the roller 57 in a stationary state in a pair with the roller 57, and A film clamper 71b is provided on the downstream side of the peeling roller 63a so as to be gripped (held) in a stationary state as a pair with the peeling roller 63a. However, the upstream film clamper 71 a has a structure for holding a position avoiding the sealing substrate 17 attached to the carrier film 18.

  Further, when the sealing substrate 17 is disposed at a position opposite to the electrostatic chuck plate 68, the organic EL sealing device 12 has marks (in this case, both sides as marks) provided in advance on both sides of the sealing substrate 17 in the transport direction. Edge) and positioning cameras 72a and 72b for photographing a pre-marked mark (here, both edges as a mark) of the OLED substrate 22.

  That is, the positioning cameras 72 a and 72 b photograph both side edges of the sealing substrate 17 and also photograph both side edges of the OLED substrate 22 through the sealing substrate 17. This is to confirm whether or not both side edges (marks) of the sealing substrate 17 coincide with both side edges (marks) of the OLED substrate 22 by this photographing.

The lower table 66 moves XYθ that rotates by a predetermined angle θ clockwise or counterclockwise about the both-side direction X indicated by the bidirectional arrow Y3 and the direction Y orthogonal to the direction X and the horizontal plane center of the lower table 66. It has a function.
With this XYθ moving function, as shown in FIG. 8, the sealing substrate 17 on the carrier film 18 held by the film clamper 71a and the guide roller 57 and the peeling roller 63a and the film clamper 71b is moved XYθ. It has become.

  At the time of this XYθ movement, as shown in FIG. 8, the OLED base film 21 is also held by the film clampers 69a and 69b, the upper table 67 moves downward as indicated by the arrow Y5, and the electrostatic chuck plate 68 is moved. By pushing down the OLED substrate film 21, the OLED substrate film 21 is held and fixed in a state of being pulled with a predetermined tension in the reverse directions indicated by arrows Y6 and Y7. However, the film clampers 69a and 69b are configured to grip portions other than the OLED substrate 22 when gripping the OLED base film 21.

  That is, when a mismatch between the marks of both the sealing substrate 17 and the OLED substrate 22 is photographed by the positioning cameras 72a and 72b shown in FIG. 7, the lower table 66 moves the sealing substrate 17 by the XYθ moving function, Both side edges of the sealing substrate 17 are made to coincide with both side edges of the OLED substrate 22 shown in FIG. That is, the sealing substrate 17 is made to coincide with a predetermined position of the OLED substrate 22.

After this coincidence, while the sealing substrate sticking mechanism 61 is moved in the upward direction indicated by the arrow Y8, the sticking roller 61a is brought into contact with and pressed against the carrier film 18, and the downstream end portion of the sealing substrate 17 surface is the surface of the OLED substrate 22 Press against the opposite end of the plate with a predetermined force.
Thereafter, the sealing substrate pasting mechanism 61 is moved in the upstream direction indicated by the arrow Y9 in a state where the end of the sealing substrate 17 presses the end of the OLED substrate 22 with the pasting roller 61a. As a result, as shown in FIG. 9, when the sealing substrate pasting mechanism 61 moves to the upstream side of the upper table 67, the sealing substrate 17 is stuck to the OLED substrate 22 by the electrostatic force of the electrostatic chuck plate 68. It becomes a state.

  At this time, the sticking roller 61a gradually moves to the opposite end while pressing the end portion of the sealing substrate 17 against the OLED substrate 22, and bonds the sealing substrate 17 to the OLED substrate 22 with electrostatic force. As shown in FIG. 4, the gaps between the bonding surfaces do not occur, and the bonding surfaces are completely bonded together. At this time, the upper table 67 shown in FIG. 9 pushes down the OLED substrate film 21 via the electrostatic chuck plate 68 in the downward direction of the arrow Y5, and the holding and fixing force pulled in the reverse direction indicated by the arrows Y6 and Y7 is Add to electrostatic force. This resultant force F0 is stronger than the adhesive force F1 of the adhesive layer 16 that bonds the sealing substrate 17 and the OLED substrate 22 together. Moreover, the adhesive force F1 is stronger than the adhesive force F2 of the adhesive tape 38 (see FIG. 4) that bonds the carrier film 18 and the sealing substrate 17 together. Therefore, the relationship is F0> F1> F2.

  Therefore, after bonding, as shown in FIG. 10, the carrier peeling mechanism 63 is moved to the upstream side indicated by the arrow Y9, so that the carrier film 18 is pulled by the peeling rollers 63a and 63b while being indicated by the solid line 18 from the broken line 18. Thus, it can peel from the sealing substrate 17. However, the bonding of the sealing substrate 17 by the sealing substrate bonding mechanism 61 and the peeling of the carrier film 18 by the carrier peeling mechanism 63 may be performed in the direction opposite to the arrow Y9.

  Also, the conveying operation of the films 19 and 18, the gripping operation of the film clampers 69a, 69b, 71a and 71b, the photographing operation of the positioning cameras 72a and 72b, the operation of the XYθ moving function of the lower table 66, and the moving operation of the upper table 67 The operation control related to the organic EL sealing device 12 such as the moving operation of the sealing substrate pasting mechanism 61 and the carrier peeling mechanism 63 is performed by the control device 101 shown in FIG. 6 described above. That is, the control device 101 in FIG. 6 represents both the control device of the organic EL sealing device 12 and the control device of the sealing roll film manufacturing device 11 as a representative.

<Operation of Sealing Roll Film Manufacturing Device 11>
Next, the production | generation operation | movement of the sealing roll film 19 by the sealing roll film manufacturing apparatus 11 mentioned above is demonstrated with reference to the flowchart shown in FIG. In addition, each operation control in description shall be performed by the control apparatus 101. FIG.

  In step S1, the carrier film 18 is set together with the roll film 19a and the adhesive tape 38 in the sealing roll film production apparatus 11 shown in FIG. That is, the roll film 19a is set on the most upstream side roll mounting portion 31, and this roll film 19a is connected to the guide rollers 33a to 33h, the dancer rollers 35a to 35c, the nip rollers 34a and 34b, and the meander detection sensors 40a and 40b, The film is passed through the half-cut mechanism 41, the unnecessary part removing mechanism 42, and the feeder 43 in order from the upstream side, and wound and set by the film winding unit 32 on the most downstream side.

  At the same time, while affixing the adhesive tape 38 set on the roll mounting portion 39 to one side of the carrier film 18 set on the roll mounting portion 36, the guide rollers 33i to 33k and 33f to 33h, the dancer rollers 35d and 35c, The film is passed through the laminating rollers 37a and 37b in order from the upstream side, and wound and set by the film winding unit 32.

  When the films 19a, 18, and 19 pass during the setting, the films 19a, 18, and 19 are conveyed so as not to meander while detecting the meandering of the film by the meander detection sensors 40a and 40b in step S2. That is, it is conveyed while meandering correction is performed. Further, tension is applied by the dancer rollers 35a to 35d so that the films 19a, 18 and 19 do not sag. The meandering correction described above is always performed even in film conveyance by the formation operation of the sealing substrate 17 described later.

Next, in step S3, the Thomson blade 41a of the half-cut mechanism 41 is pressed against the pedestal 41b with the roll film 19a being stopped. By this pressing, the upper two layers of the sealing substrate film 17a and the adhesive layer 16 of the film 19a are punched out into a form of the rectangular sealing substrate 17 shown by a broken line in FIG.
Thereafter, in step S4, the roll film 19a is fed to the downstream side indicated by the arrow Y1 by the length 43 (see FIG. 2A) by the feeder 43 shown in FIG.

  Next, in step S5, the adhesive tape portion 42a of the unnecessary portion removing mechanism 42 is lowered in the direction of the base 42b and is adhered to unnecessary portions other than the sealing substrate 17 of the sealing substrate film 17a. Thereafter, the pressure-sensitive adhesive tape portion 42 a is raised, and the unnecessary portion thus adhered is lifted and peeled off, and the sealing substrate 17 is produced on the separator 15. Note that the removed unnecessary portion is recovered by a recovery mechanism (not shown).

Such operations of steps S4 and S5 are sequentially repeated, whereby the sealing substrate 17 adhered with the adhesive layer 16 is formed on the separator 15, and is conveyed to the palator 15 downstream in an adhesive state.
At the time of this conveyance, in step S6, the laminating rollers 37a and 37b are heated in a state where the carrier film 18 is put on the sealing substrate 17 adhered to the separator 15 via the adhesive tape 38. By this heating, the carrier film 18 is stuck on the sealing substrate 17 with the adhesive tape 38. As a result, the sealing roll film 19 is produced and wound around the roll attachment portion 32.

<Operation of Organic EL Sealing Device 12>
Next, a sealing operation by bonding the sealing substrate 17 to the OLED substrate 22 by the organic EL sealing device 12 shown in FIG. 7 will be described with reference to a flowchart shown in FIG. Note that each operation control in the description is performed by the control device 101 shown in FIG.

  In step S11 shown in FIG. 12, the sealing roll film 19 manufactured by the above-described sealing roll film manufacturing apparatus 11 is divided into the most upstream roll mounting portion 51 and the most downstream film winding portion 52 shown in FIG. Set while including. At this time, the sealing roll film 19 is passed between the separator peeling roller 53 and the guide roller 55, and the separator 15 in the sealing roll film 19 is wound around the arc of the roller 53 by the film winding portion 54. set. Further, the OLED base film 21 is inserted and set in each of the film clampers 69a and 69b.

  Next, in step S12, the OLED substrate film 21 moved in the arrow Y4 direction is clamped by the film clampers 69a and 69b, and the OLED substrate 22 attached to the OLED substrate film 21 is replaced with the electrostatic chuck plate 68. Is set at a predetermined position on the front surface of. Further, the carrier film 18 to which the sealing substrate 17 after the separator 15 is peeled off is moved in the direction of the arrow Y2, and clamped by the film clampers 71a and 71b and the rollers 57 and 63a. It is set at a position facing the OLED substrate 22.

  Next, in step S13, as shown in FIG. 8, the upper table 67 moves in the downward direction indicated by the arrow Y5, and the electrostatic chuck plate 68 pushes down the OLED substrate film 21, whereby the OLED substrate film 21 is moved. It is held and fixed while being pulled with a predetermined tension in the reverse direction indicated by arrows Y6 and Y7.

  Thereafter, in step S14, both side edges of the sealing substrate 17 are photographed by the positioning cameras 72a and 72b, and both side edges of the OLED substrate 22 are photographed through the sealing substrate 17.

In step S <b> 15, it is determined whether or not both side edges of the sealing substrate 17 coincide with both side edges of the OLED substrate 22 by the photographing. However, the coincidence of the both side edges is because the sealing substrate 17 is larger than the OLED substrate 22 as described above, and the sticking cost is taken into consideration. In other words, it is determined whether or not the sealing substrate 17 coincides with a predetermined position of the OLED substrate 22.
If it is determined that the results do not match (No), in step S16, the sealing substrate 17 on the carrier film 18 clipped by the film clampers 71a and 71b is moved by the XYθ moving function of the lower table 66. , XYθ is moved to coincide with a predetermined position of the OLED substrate 22.

  After that, again, in step S14, both side edges of the sealing substrate 17 and the OLED substrate 22 are photographed. In step S15, it is determined whether or not the sealing substrate 17 coincides with a predetermined position of the OLED substrate 22. .

  If the result of this determination is that they match (Yes), in step S17, as shown in FIG. 8, while the sealing substrate sticking mechanism 61 moves in the upward direction indicated by the arrow Y8, the sticking roller 61a is moved. The downstream end portion of the sealing substrate 17 surface is pressed against the opposite end portion of the OLED substrate 22 surface with a predetermined force.

  Thereafter, in step S18, the sealing substrate pasting mechanism 61 is moved in the upstream direction indicated by the arrow Y9 together with the pasting roller 61a in the above-described pressing state, and as shown in FIG. It is moved to the upstream side of the upper table 67 together with 61a. During this movement, the sealing substrate 17 is pressed against the OLED substrate 22 by the pressing force of the sticking roller 61a. At this time, the sealing substrate 17 is bonded to the OLED substrate 22 by the electrostatic force of the electrostatic chuck plate 68.

  Next, in step S19, as shown in FIG. 10, the carrier peeling mechanism 63 is moved to the upstream side indicated by the arrow Y9, whereby the carrier film 18 is peeled from the sealing substrate 17 while being pulled by the peeling rollers 63a and 63b. Is done. At this time, the resultant film F9 that bonds the OLED substrate 22 to the electrostatic chuck plate 68 and the adhesive force F1 that bonds the sealing substrate 17 to the OLED substrate 22 bond the carrier film 18 and the sealing substrate 17 together. The carrier film 18 is peeled off from the sealing substrate 17 because it is stronger than the adhesive force F2 of the adhesive tape 38 that is being applied.

Thereby, in step S20, the OLED sealing film 23 on which the OLED substrate 22 whose surface is sealed with the sealing substrate 17 is mounted by adhesion is manufactured.
Thereafter, the OLED sealing film 23 is heated by the heat treatment apparatus 13 shown in FIG. 1, whereby the sealing substrate 17 is cured with the OLED substrate 22 sealed, and the product film 24 is produced.

<Effect of the organic EL sealing device 12>
According to the organic EL sealing device 12 shown in FIG. 7 of the present embodiment, the following effects can be obtained.
The organic EL sealing device 12 includes a first transport unit that transports an OLED substrate film 21 in which a plurality of OLED substrates 22 are attached to a substrate film 21a as a long first film, by roll-to-roll, A plurality of sealing substrates 17 are affixed to first holding means that are film clampers 69a and 69b that hold the OLED base film 21 to be conveyed in a stopped state and a carrier film 18 as a long second film. A second transport unit that transports the sealing roll film 19 by roll-to-roll, a film clamper 71a and a guide roller 57 that hold the sealing roll film 19 transported by the second transport unit in a stopped state, and a peeling roller. The second holding means by 63a and the film clamper 71b and the sealing substrate 17 are bonded to the OLED substrate 22 and sealed. And a Rufutome means.

However, the first transport means is constituted by a roller mechanism (not shown) arranged on both sides of the film clampers 69a and 69b.
The second conveying means includes a roll mounting portion 51, a separator peeling roller 53, a film winding portion 54, guide rollers 55, 57, 58, a dancer roller 56, a pasting roller 61a, and peeling rollers 63a, 63b. The nip roller 64 and the film take-up portion 52 are included.
The sealing means includes a lower table 66, a sealing substrate sticking mechanism 61, a carrier peeling mechanism 63, an upper table 67, and an electrostatic chuck plate 68.

  The organic EL sealing device 12 is bonded to the sealing roll film 19 on the OLED substrate 22 bonded to the OLED substrate film 21 when the OLED substrate film 21 is held by the first holding means. The sealing roll film 19 is held by the second holding unit in a state where the sealing substrate 17 faces, and the OLED substrate 22 and the sealing substrate 17 facing each other are bonded and sealed by the sealing unit. It is configured.

According to this configuration, since the manufacturing operation for bonding the sealing substrate 17 to the OLED substrate 22 and sealing it can be performed continuously by roll-to-roll, the tact time of the manufacturing operation can be shortened. . Therefore, the manufacturing operation can be performed efficiently.
Further, the organic EL sealing device 12 includes positioning cameras 72a and 72b as photographing means for photographing the positions of the OLED substrate 22 and the sealing substrate 17 facing each other, and a sealing roll film held by a second holding means. 19 and the OLED substrate 22 photographed by the positioning cameras 72a and 72b, and the lower table 66 as a moving means for moving the sealing substrate 17 bonded to 19 in the horizontal and vertical directions and the rotation direction (XYθ movement) on the horizontal plane. A configuration further comprising a control device 101 as a control means for controlling the lower table 66 to perform XYθ movement to make the sealing substrate 17 coincide with a predetermined position when the mutual position with the substrate 17 does not coincide with the predetermined position. It was.
According to this configuration, since the sealing substrate 17 can be aligned with the OLED substrate 22 with high accuracy, it can be bonded with high accuracy.

Moreover, it was set as the structure which matches the affixing space | interval of the some OLED board | substrate 22 in the OLED base film 21, and the affixing space | interval of the some sealing substrate 17 in the sealing roll film 19. FIG.
Although it is not limited to the structure matched, according to the structure matched, the OLED substrate 22 and the sealing substrate 17 can be easily opposed to each other in the roll-to-roll mechanism.

Further, the shapes of the OLED substrate 22 and the sealing substrate 17 are similar to those of the sealing substrate 17 as described above.
As a result, when both the OLED substrate 22 and the sealing substrate 17 are opposed to each other, since both are similar to each other, alignment can be performed with high accuracy if both centers are aligned.

The sealing means includes an electrostatic chuck plate 68 having a voltage applying means and a dielectric plate. The OLED substrate 22 is brought into contact with the sealing substrate 17 while pressing the dielectric plate against the OLED substrate 22. A voltage is applied by the voltage applying means in between, and the resultant force F0 of the electrostatic force generated between the two by this application and the tension force generated in the OLED substrate film 21 to which the OLED substrate 22 is attached by the pressing force. Thus, the OLED substrate 22 and the sealing substrate 17 are bonded together.
According to this configuration, the sealing substrate 17 can be easily and accurately bonded to the OLED substrate 22 with the resultant force F0 of static electricity and tension.

The sealing means includes a sticking roller, and moves the sticking roller while pressing the sticking roller from one end to the other end of the sealing substrate 17 when the OLED substrate 22 and the sealing substrate 17 are attracted by electrostatic force. By doing so, both the sealing substrate 17 and the OLED substrate 22 are bonded together.
According to this configuration, a partial gap or the like is not generated on the bonding surface between the OLED substrate 22 and the sealing substrate 17, and the OLED substrate 22 and the sealing substrate 17 can be completely bonded together.

  Further, the force for attaching both the sealing substrate 17 and the OLED substrate 22 is set to be stronger than the force for attaching the sealing substrate 17 to the carrier film 18. Further, the sealing means includes a carrier peeling mechanism 63 as a peeling means for peeling the carrier film 18 from the sealing substrate 17. After both the sealing substrate 17 and the OLED substrate 22 are bonded, the carrier peeling mechanism 63 The carrier film 18 is peeled from the sealing substrate 17.

  According to these configurations, when the carrier film 18 attached to the sealing substrate 17 is peeled off after the sealing substrate 17 is bonded to the OLED substrate 22, only the carrier film 18 can be easily peeled off.

<Effect of sealing roll film production apparatus 11>
The sealing roll film production apparatus 11 shown in FIG. 4 of the present embodiment includes a roll film 19a in which a long sealing substrate film 17a is attached to a separator 15 as a long first film. Only the sealing substrate film 17a affixed to the roll film 19a at the time of stop in the frame transport of the roll film 19a to be transported and the third transport means for transporting by roll-to-roll for frame advance at predetermined intervals ( Half-cut mechanism 41 serving as a cutting means for cutting a predetermined frame shape (except for the separator 15), and a removing means for removing unnecessary portions other than the cut frame shape in the sealing substrate film 17a from the roll film 19a The unnecessary part removing mechanism 42 as a long distance from the top of the sealing substrate 17 by the frame mold that remains after the removal of the roll film And configured to include a fourth conveying means for producing a sealing roll film 19 to the carrier film 18 as a second film of Jo by sticking a roll-to-roll.

  However, the third transport means includes guide rollers 33 a, 33 b, and a guide roller 33 a, 33 b, between the most upstream roll mounting portion 31 and the most downstream film winding portion 32, and between the roll mounting portion 31 and the film winding portion 32. 33c, 33d, 33e, 33f, 33g, 33h, nip rollers 34a, 34b, dancer rollers 35a, 35b, 35c, and laminating rollers 37a, 37b.

  The fourth transport means includes roll mounting portions 36, 39, guide rollers 33i, 33j, 33k, dancer rollers 35d, 35c, laminating rollers 37a, 37b, guide rollers 33f, 33g, 33h, nip rollers 34b, And a film winding unit 32.

  According to this configuration, the sealing roll film 19 in which these sealing substrates 17 are attached to the carrier film 18 can be efficiently manufactured while continuously manufacturing the sealing substrate 17 by roll-to-roll. .

The shape of the frame shape is the same as the shape of the substrate on which the sealing substrate 17 is bonded.
As a result, the sealing substrate 17 can be easily made to face the bonding destination substrate, and both substrates can be easily aligned with high accuracy.

Further, the meandering detection correcting means including meandering detection sensors 40a and 40b for detecting meandering of the roll film 19a conveyed by the third conveying means of the sealing roll film manufacturing apparatus 11 and correcting meandering is provided.
According to this configuration, when the roll film 19a is conveyed by roll-to-roll, it does not meander, so that the roll film 19a can be properly conveyed, and also properly produced when the sealing substrate 17 is continuously produced. be able to.

<Effect of organic EL sealing system>
The organic EL sealing system 10 shown in FIG. 1 of the present embodiment includes the organic EL sealing device 12 and the sealing roll film manufacturing device 11 described above, and the organic EL sealing device 12 and the sealing substrate 17 on the OLED substrate 22. And a heat treatment apparatus 13 for heating and curing in a state of being bonded and sealed.
According to this configuration, since the sealing substrate 17 is bonded to the OLED substrate 22 and sealed, it is heated and cured, so that the product film 24 can be appropriately manufactured.
However, instead of thermal curing in the heat treatment apparatus 13, the product film 24 may be formed by UV curing with ultraviolet rays (UV). In this case, it is necessary to apply the UV coating agent uniformly between the OLED substrate 22 and the sealing substrate 17.

  In addition, this invention is not limited to above-described embodiment, Various modifications are included. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

Each of the above-described configurations, functions, processing units (control units), processing means, and the like may be realized in hardware by designing a part or all of them, for example, with an integrated circuit. Further, each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function is stored in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), an IC (Integrated Circuit) card, an SD (Secure Digital memory) card, a DVD ( Digital Versatile Disc) can be placed on a recording medium.
Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

DESCRIPTION OF SYMBOLS 10 Organic EL sealing system 11 Sealing roll film production apparatus 12 Organic EL sealing apparatus 13 Heat processing apparatus 15 Separator 16 Adhesive layer 17 Sealing substrate 18 Carrier film 19 Sealing roll film 19a Roll film 21 OLED base film 21a Substrate film 22 OLED substrate 22a Anode 22b Organic film 22c Cathode 23 OLED sealing film 24 Product film 31, 36, 39, 51 Roll mounting portion (second to fourth conveying means)
32, 52 Film winding unit (second to fourth conveying means)
33a, 33b, 33c, 33d, 33e, 33f, 33g, 33h, 33i, 33j, 33k, 55, 57, 58 Guide rollers (second to fourth conveying means)
34a, 34b, 64 Nip roller (second to fourth conveying means)
35a, 35b, 35c, 35d, 56 Dancer rollers (second to fourth conveying means)
37a, 37b Laminating roller 38 Adhesive tape 40a, 40b Meander detection sensor (meander detection correction means)
41 Half-cut mechanism 41a Thomson blade 41b, 42b Base 42 Unnecessary part removing mechanism (removing means)
42a Adhesive tape part 43 Feeder 53 Separator peeling roller 54 Film winding part 61 Sealing substrate sticking mechanism (sealing means)
61a Affixing roller 63 Carrier peeling mechanism (sealing means)
63a, 63b Peeling roller 66 Lower table (sealing means) (moving means)
67 Upper table (sealing means)
68 Electrostatic chuck plate (sealing means)
69a, 69b, 71a, 71b Film clamper (first and second holding means)
72a, 72b Positioning camera (photographing means)
101 Control device (control means)

Claims (11)

A first transport means for transporting an OLED substrate film in which a plurality of OLED substrates are bonded to a long first film by roll-to-roll;
First holding means for holding the conveyed OLED substrate film in a stopped state;
A second transport means for transporting a sealing roll film in which a plurality of sealing substrates are attached to a long second film by roll-to-roll;
A second holding means for holding the conveyed sealing roll film in a stopped state;
A sealing means for sealing the OLED substrate by bonding the sealing substrate;
When the OLED substrate film is held by the first holding unit, the sealing substrate bonded to the sealing roll film faces the OLED substrate bonded to the OLED substrate film. , An organic EL sealing device that holds the sealing roll film with the second holding means and seals the OLED substrate and the sealing substrate facing each other by the sealing means ,
Further, the sealing means includes a voltage applying means and a dielectric plate, and the OLED substrate is brought into contact with the sealing substrate while pressing the dielectric plate against the OLED substrate. The contacted dielectric plate and the OLED A voltage is applied between the substrate and the sealing substrate by the voltage applying means, and the OLED substrate on which the OLED substrate is attached by the electrostatic force generated by the application and the pressing force in the pressing. An organic EL sealing device , wherein the OLED substrate and the sealing substrate are bonded together with a resultant force of a tension force generated in the material film . The organic EL sealing device according to claim 1,
Imaging means for imaging the positions of the OLED substrate and the sealing substrate facing each other;
A moving means for moving the sealing substrate bonded to the sealing roll film in a state where the sealing roll film is held by the second holding means in the vertical and horizontal directions and the rotation direction on a horizontal plane;
Control for controlling the moving means to move the sealing substrate to the predetermined position when the mutual position of the OLED substrate photographed by the photographing means and the sealing substrate does not match the predetermined position. And an organic EL sealing device. The organic EL sealing device according to claim 1 or 2,
The organic EL sealing device according to claim 1, wherein the interval between the plurality of OLED substrates in the OLED base film is equal to the interval between the plurality of sealing substrates in the sealing roll film. The organic EL sealing device according to claim 1 or 2,
The organic EL sealing device, wherein the OLED substrate and the sealing substrate are similar in shape to the sealing substrate. The organic EL sealing device according to any one of claims 1 to 4 ,
The sealing means includes an application roller, and moves the OLED substrate and the sealing substrate while pressing the application roller from one end to the other end of the sealing substrate when the OLED substrate and the sealing substrate are bonded together by the electrostatic force. The organic EL sealing device, wherein both the sealing substrate and the OLED substrate are bonded together. The organic EL sealing device according to claim 5 ,
The organic EL sealing device, wherein a force for bonding both the sealing substrate and the OLED substrate is stronger than a force for bonding the sealing substrate to the second film. The organic EL sealing device according to claim 6 ,
The sealing unit includes a peeling unit that peels the second film from the sealing substrate, and after the sealing substrate is bonded to the OLED substrate, the second film is peeled from the sealing substrate by the peeling unit. Organic EL sealing device characterized by peeling. A third transporting means for transporting a roll film in which a long sealing substrate film is bonded to a long first film by roll-to-roll to a frame feed at a predetermined interval;
A cutting means for cutting only the sealing substrate film attached to the roll film into a predetermined frame shape of the sealing substrate at the time of stopping in the frame feed of the roll film being conveyed,
Removal means for removing unnecessary portions other than the cut frame shape in the sealing substrate film from the roll film;
And a fourth conveying means for producing a sealing roll film by laminating a long second film by roll-to-roll from the frame-shaped sealing substrate remaining on the roll film after the removal. An apparatus for producing a sealing roll film. It is a sealing roll film manufacturing apparatus of Claim 8 , Comprising:
The shape of the said frame type is the same as the board | substrate shape which bonds the sealing substrate by the said frame type. The sealing roll film manufacturing apparatus characterized by the above-mentioned. The sealing roll film manufacturing apparatus according to claim 8 or 9 ,
An encapsulating roll film manufacturing apparatus, further comprising meandering detection correcting means for detecting meandering of the roll film conveyed by the third conveying means and correcting meandering. The organic EL sealing device according to any one of claims 1 to 7 ,
A sealing roll film manufacturing apparatus according to any one of claims 8-10,
An organic EL sealing system, comprising: a heat treatment device that heats and cures the OLED substrate while the sealing substrate is bonded to the OLED substrate and sealed by the organic EL sealing device.

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