TWI539638B - Organic electroluminescent light sealing device - Google Patents

Description

Organic electroluminescent sealing device

The present invention relates to an organic EL sealing device for attaching a sealing film to an organic EL (Electrically Excited Light) panel.

In the related art, the technique of attaching a sealing substrate to a panel of an organic EL, that is, an organic light-emitting diode (OLED), is described in Patent Document 1. In the case of manufacturing an organic EL panel for use in an organic EL illumination device or the like, after a sealed main substrate having a plurality of sealing substrates is attached to an element main substrate having a plurality of element substrates which are OLED substrates, One element of the element substrate and the sealing substrate were separated to obtain one organic EL panel.

The organic EL panel is characterized in that it includes an element substrate in which an organic EL element and a terminal range are formed, a glass substrate is used as a base, a sealing member that covers the organic EL element, and a device that is bonded to the element substrate via a sealing member. The substrate is sealed, and a first spacer which is disposed only in a range between the organic EL element and the terminal range is provided. Then, the first spacer is used to suppress deformation of the organic EL panel due to external stress such as stress concentration of the breaking process or change in ambient temperature, and to suppress peeling of the sealing member. occur. Further, the decrease in the airtightness of the sealing member due to the peeling is suppressed.

Further, by using a roll-to-roll process in which a film wound around a roll is wound around another roll, a plurality of sheet-shaped sealing materials are attached to the sealed main substrate. In the manner of attaching the sheet-like sealing material to the plurality of rows at the same time, the production time required for the attachment can be shortened.

[Previous Technical Literature] [Patent Document]

[Patent Document 1] International Publication No. 2010/024006

By the way, in the organic EL panel of the patent document 1, the winding type method is attached, and a plurality of sheet-like sealing materials are attached to the sealing main substrate, and the manufacturing efficiency is improved. However, this is a production of a sealing substrate. In order to manufacture an organic EL panel, it is necessary to attach the sealing main substrate to the element main substrate, and then to obtain one organic EL panel. Therefore, there is a problem that the organic EL panel cannot be manufactured efficiently.

Further, the first spacer absorbs the external stress at the time of breaking the organic EL panel, but if it is necessary to break, it is impossible to deny the stress caused by the breaking action in the organic EL. There is any fault in the panel. Therefore, there is a seal shape in which the sealing substrate cannot be bonded to the element substrate of the OLED substrate with high precision. State problem.

The present invention has been made in view of such circumstances, and an object of the invention is to provide an organic EL sealing device capable of bonding a sealing substrate to an OLED substrate with high precision and performing the manufacturing operation with high efficiency.

In order to solve the problem, the present invention provides an organic EL sealing device which is provided with a first substrate to a long film which is formed by attaching a plurality of organic EL elements at a predetermined interval in the transport direction. The base film is conveyed by winding; the transfer roller is attached to the second substrate of the plurality of organic EL elements produced by using the film material at the same interval from the roller in the direction around the roller. And a rotational movement means for freely rotating and moving the transfer roller in a vertical direction perpendicular to the transport direction; and moving the transfer roller by the rotational movement means to attach the transfer roller to the transfer The second substrate of the roller abuts against the first substrate attached to the base film, and the rotation operation of the transfer roller by the rotational movement means and the substrate film by the transfer means The transport means is synchronized, and the second substrate is bonded to the first substrate, and the other is sealed by the other.

According to the present invention, it is possible to provide an organic EL sealing device which can apply a sealing substrate to an OLED substrate with high precision and perform the manufacturing operation with high efficiency.

10, 60‧‧‧Organic EL sealing device

17‧‧‧Seal substrate (2nd substrate)

21‧‧‧OLED substrate film

22‧‧‧OLED substrate (first substrate)

24‧‧‧Product film

48‧‧‧ Film winding department

30, 31, 32, 33, 34, 35, 35a, 35b, 36, 37‧‧‧ guide rollers (transport means)

38, 39‧‧‧Floating roller (transport means)

41~43‧‧‧Clamping roller (transport means)

45a, 45b‧‧‧heating rollers (heating means)

52‧‧‧Transfer roller

40‧‧‧Snake detection sensor (snake correction method)

51‧‧‧Seal substrate attachment mechanism (rotary movement means)

53‧‧‧Support (rotary movement means)

62‧‧‧Vacuum pressure sealing mechanism

63‧‧‧Get out of bed

63a‧‧‧Outer frame bed

63b‧‧‧Platform bed

63c, 64a‧‧‧heater

63d‧‧‧XYZθ moving mechanism

64‧‧‧Going to the table

65‧‧‧Distribution Department (Coating means)

66‧‧‧Photography Department

66a, 66b‧‧‧ lens section

66c‧‧‧ polarizing mechanism

71‧‧‧UV illuminator (UV irradiation means)

101‧‧‧Control device

[Fig. 1] is a configuration diagram showing the main configuration of the organic EL sealing device 10 according to the first embodiment of the present invention as seen from the side surface direction.

FIG. 2A is a plan view of a long OLED substrate film.

FIG. 2B is a cross-sectional view of the organic EL element corresponding to the A1-A1 cross section shown in FIG. 2A.

FIG. 3 is a view showing a configuration in which the OLED base film is cut in the width direction orthogonal to the conveyance direction, and the cut surface and the upper and lower rollers are viewed from the conveyance direction.

[Fig. 4] is a block diagram showing a configuration of a control device that performs operation control of the organic EL sealing device of the present embodiment.

FIG. 5 is a flow chart for explaining an operation of sealing the OLED substrate by sealing the substrate by the organic EL sealing device of the first embodiment.

[Fig. 6] is a configuration diagram showing a main configuration of an organic EL sealing device according to a second embodiment of the present invention as seen from the side surface direction.

FIG. 7 is a first flow chart for explaining an operation of sealing the OLED substrate by sealing the substrate by the organic EL sealing device of the second embodiment.

FIG. 8 is a second flow for explaining an operation of sealing the OLED substrate by sealing the substrate by the organic EL sealing device of the second embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Configuration of the first embodiment>

Fig. 1 is a configuration diagram showing a main configuration of an organic EL sealing device 10 according to a first embodiment of the present invention as seen from the side surface direction. In the following description, the first substrate is the OLED substrate 22, and the second substrate is the sealing substrate 17.

The organic EL sealing device 10 is disposed in a nitrogen (N ₂ ) environment, and is attached to an OLED substrate that is attached to a roll to roll conveyance from a front process (not shown) indicated by an arrow Y1. The OLED substrate (first substrate) 22 of the film (base material film) 21 is bonded to the sealing substrate (second substrate) 17 and sealed. Thus, the product film 24 of the electrical product used in the organic EL illumination device or the like is produced.

However, the organic EL sealing device 10 is disposed in a nitrogen atmosphere because the OLED substrate film 21 and the sealing substrate 17 are in contact with air and moisture without being damaged to maintain high quality. Further, the sealing substrate 17 and the surface of the OLED substrate 22 are formed of a film material. Further, the OLED substrate film 21 is a film having flexibility.

2A is a plan view of the elongated OLED substrate film 21; and FIG. 2B is a cross-sectional view of the organic EL element corresponding to the A1-A1 cross section shown in FIG. 2A. As shown in FIG. 2A, the OLED substrate film 21 is attached to the OLED substrate 22 at a predetermined interval L1 in the elongated substrate film 21a. The interval L1 is a length from the center of the OLED substrate 22 to the center of the adjacent OLED substrate 22.

The OLED substrate 22, as shown in FIG. 2B, is attached to the substrate film 21a with the laminated anode 22a, the organic film 22b, and the cathode 22c. An OLED substrate (organic EL element) 22 each formed of layers. Further, a voltage having a predetermined low potential is applied between the cathode 22c and the anode 22a via the power source Va, and the light is emitted as indicated by an arrow Y10. The sealing substrate 17 is bonded to the cathode 22c side of the OLED substrate 22 having such a configuration, and the sealed OLED substrate 22 is not exposed to moisture or oxygen. However, the OLED substrate 22 and the sealing substrate 17 have a similar shape, and one of the sealing substrates 17 is as shown in FIG. 2B, and is formed to have a large size in which the OLED substrate 22 can be entirely coated. Therefore, in FIG. 1 or FIG. 6 described later, the OLED substrate 22 and the sealing substrate 17 are identical, but actually have the dimensional relationship shown in FIG. 2B.

The organic EL sealing device 10 shown in FIG. 1 includes guide rollers 30, 31, 32, 33, 34, 35, 36, 37 that convey the OLED base film 21 in the horizontal direction indicated by an arrow Y1. A floating roller 38 disposed below the guide rollers 31 and 32, and a floating roller 39 disposed below the guide rollers 36 and 37. Furthermore, the OLED substrate 22 of the OLED substrate film 21 is pressed from below by the nip roller 41 which sandwiches the OLED substrate film 21 in a pair with the guide roller 30, and the transfer roller 52 which will be described later. The pinch roller 42 sandwiched between the sealing substrate 17 and the pinch roller 43 that sandwiches the OLED base film 21 in pairs with the guide roller 37.

The floating roller 38 has a function of applying tension to the upper and lower sides of the OLED substrate film 21 so as not to cause slack; the floating roller 39 has a tension applied to the upper and lower sides of the product film 24 when the product film 24 passes. Will produce slack function.

Further, the organic EL sealing device 10 is disposed between the guide rollers 33 and 34, and includes heating rollers 45a and 45b that are heated by sandwiching the OLED substrate 22 and the sealing substrate 17 on the OLED substrate film 21 up and down, and The product film 24 sealed by the sealing substrate 17a which is cured by heating the OLED substrate 22 on the OLED substrate film 21 is wound into the film winding portion 48 on the most downstream side in the form of a roll. However, the above hardening is hardening with flexibility. Incidentally, almost all materials are flexible due to thinning, and in this case, they are flexible by being thin.

Further, the guide rollers 30 to 37, the floating rollers 38 and 39, the pinch rollers 41 to 43, the heating rollers 45a and 45b, and the transfer roller 52 are simply referred to as rollers 30 to 37, 38, and 39. 41~43, 45a, 45b, 52. The OLED base film 21 and the product film 24 are simply referred to as films 21 and 24. The sealing substrate 17 and the OLED substrate 22 are simply referred to as substrates 17 and 22.

Further, the rollers 30 to 37 disposed on the lower side of the OLED base film 21 and the product film 24 are shown as being representative of the roller 30 in Fig. 3 . FIG. 3 is a view showing a configuration in which the OLED base film 21 is cut in the width direction orthogonal to the conveyance direction, and the cut surface and the upper and lower rollers 41 and 30 are viewed from the conveyance direction.

As shown in FIG. 3, the roller 30 is configured such that rollers 30a and 30b having a diameter r1 are disposed on the film 21 on both sides of the OLED substrate 22 at intervals longer than the width of the OLED substrate 22. The centers of the rollers 30a, 30b are fixed by an elongated cylindrical rod-shaped shaft 30c.

A concave portion spanning the OLED substrate 22 is formed between the shaft 30c and each of the rollers 30a and 30b, and the convex portion formed by the OLED substrate 22 is formed in the concave portion. It is made into a size that can be passed without contact.

The concave portion is also formed in the downstream side roller after the guide roller 33 of Fig. 1, and the convex portion formed by the OLED substrate 22 and the sealing substrate 17 (or 17a) is formed.

Further, the organic EL sealing device 10 includes a meandering detecting sensor 40 disposed between the guide rollers 30 and 31, and a sealing substrate attaching mechanism 51 disposed between the guide rollers 32 and 33.

The meandering detecting sensor 40 is a serpentine detecting and correcting means for correcting the meandering of the OLED substrate 21 when it is conveyed, and is provided with a meandering correction unit (not shown).

The sealing substrate attaching mechanism 51 is configured to support the transfer roller 52 to rotate freely by the rotation shaft 54 of the support portion 53, and the support portion 53 is freely perpendicular to the horizontal conveyance direction of the OLED base film 21. A mechanism in which the vertical direction Y2 and Y3 can be moved.

The transfer roller 52 is formed by an elastic member such as a rubber having flexibility, and a plurality of sealing substrates 17 are attached to the surrounding surface at predetermined intervals in the circumferential direction. The attachment is performed by using a suction jig, an electrostatic jig, or a viscous substance. In this example, the attachment interval of each of the sealing substrates 17 of the transfer roller 52 is the same as the attachment interval L1 of the OLED substrate 22 of the OLED substrate film 21 shown in FIG. 2A; for the transfer roller 52 Attachment is carried out by people. Further, the shape of the sealing substrate 17 is the same shape as that of the OLED substrate 22. In the present embodiment, the shape of the sealing substrate 17 is a rectangular shape, but may be any shape such as a square, a circle, a triangle, or a star. Also, the attachment interval L1 can be widened or narrowed.

Further, in the sealing substrate attaching mechanism 51, the transfer roller 52 to which the plurality of sealing substrates 17 are attached is moved in the upward direction indicated by the arrow Y2, and is abutted so as to cover the right end of the sealing substrate 17. To the right end of the OLED substrate 22 of the OLED substrate film 21. From the contact state, the sealing substrate 17 is attached to the OLED from the right end toward the left end so as to synchronize the transfer of the OLED substrate film 21 (Y1 direction) and rotate the transfer roller 52 in the clockwise direction. The substrate 22 is in a state as shown in Fig. 2B. This bonding is achieved by applying an adhesive to the surface of the sealing substrate 17 facing the OLED substrate 22. At this time, the adhesive force F1 of the sealing substrate 17 of the OLED substrate 22 is stronger than the adhesive force F2 of the sealing substrate 17 of the transfer roller 52, and the sealing substrate 17 is smoothly transferred (transferred). Attached to the OLED substrate 22. However, the adhesion force F0 of the OLED substrate 22 to the OLED substrate film 21 is F0>F1. Therefore, the relationship of F0>F1>F2 is obtained.

After the attachment is completed, the OLED substrate 22 under the OLED substrate film 21 is transferred, but the sealing substrate 17 under the transfer roller 52 is also attached at the same interval as the OLED substrate 22. Similarly, the next sealing substrate 17 is attached to the next OLED substrate 22. Similarly, all of the sealing substrates 17 of the transfer roller 52 are bonded to the OLED substrate 22 in the same manner.

When the bonding of all the sealing substrates 17 is completed, the conveyance of the OLED substrate film 21 is temporarily stopped, and the transfer roller 52 is lowered to the lower side indicated by an arrow Y3. When the drop is stopped at the designated position, the person attaches the specified number of the sealing substrates 17 to the transfer roller 52 and sets them.

The heating rollers 45a and 45b are formed of an elastic member such as rubber having flexibility and heat resistance, and the OLED substrate 22 sealed by the sealing substrate 17 is heated by being sandwiched thereon. In this manner, the sealing substrate 17 is hardened. Further, the hardened sealing substrate is indicated by the symbol 17a.

The conveying operation of each of the films 21 and 24, the meandering correction operation by the meandering detection of the meandering detecting sensor 40, the attaching operation by the sealing substrate attaching mechanism 51, and the heating operation by the heating rollers 45a and 45b The operation control of the organic EL sealing device 10 is performed by the control device 101 shown in FIG.

In other words, 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 Memory Device (HDD: Hard Disk) 101d. 101a to 101d are connected to the general configuration of the bus bar 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.

<Operation of the first embodiment>

Next, an operation of sealing the OLED substrate 22 with the sealing substrate 17 by the organic EL sealing device 10 shown in Fig. 1 will be described with reference to the flow shown in Fig. 5 . Further, each of the operation control in the description is performed by the control device 101. Further, the organic EL sealing device 10 is disposed in a nitrogen (N ₂ ) atmosphere, and a predetermined number of sealing substrates 17 are attached to the transfer roller 52.

In the step S1 shown in FIG. 5, the OLED base film 21 conveyed in a winding manner from the start of the process shown by the arrow Y1 in FIG. 1 is passed through the respective rollers 30~. 37, 38, 39, and 41 to 43, the film winding portion 48 of the most downstream portion is conveyed while being wound. At this time, tension is applied to the film 21 by the floating rollers 38 and 39 without causing slack, and further, the meandering detecting sensor 40 by the meandering detection correcting means performs meandering correction and appropriately performs the conveyance.

Next, in step S2, it is determined whether or not the OLED substrate 22 attached to the transported OLED substrate film 21 reaches a predetermined position on the upstream side of the pinch roller 42 disposed above the transfer roller 52. When it is judged that it has not arrived (No), the operation of step S1 and the determination of step S2 are repeatedly performed.

When it is determined that it has arrived (Yes), in step S3, the roller 52 is transferred via the sealing substrate attaching mechanism 51 to the upper direction indicated by the arrow Y2, and is abutted to be attached to the transfer roller. The right end of the sealing substrate 17 of the sub- 52 covers the right end of the OLED substrate 22 of the OLED substrate film 21.

In step S4, in synchronization with the movement of the OLED substrate film 21 in the transport direction Y1, the transfer roller 52 is rotated in the clockwise direction, and the sealing substrate 17 is bonded to the OLED substrate 22 from the right end toward the left end. . After the bonding is completed, the next OLED substrate 22 reaches the designated position via the OLED substrate film 21, and the sealing substrate 17 that has been moved by the rotation of the transfer roller 52 after synchronizing with the OLED substrate 21 is removed from the OLED substrate that has arrived. The right end of 22 begins to fit. The same sealing action in the future, The number of sheets of the sealing substrate 17 attached to the transfer roller 52 is sequentially performed.

Next, in step S5, it is determined whether or not the bonding of all the sealing substrates 17 of the transfer roller 52 is completed. When it is judged that it is not completed (No), the sealing operation of step S4 and the determination of step S5 are repeatedly performed in sequence. When it is judged to be "Yes" in the step S5, in the step S6, the roller 52 is retracted by the sealing substrate attaching mechanism 51 to descend downward as indicated by the arrow Y3, and stops at the designated position. At the stop position, in step S7, the person attaches the predetermined number of the sealing substrates 17 to the transfer roller 52. After this setting, the process returns to the above-described step S3, and the above-described processing operation is performed.

Further, in the processing operation of the above-described steps S4 to S7, in the step S8, the OLED substrate 22 sealed to the sealing substrate 17 on the downstream side of the transfer roller 52 is heated by the heating roller 45a. 45b is heated and hardened while being clamped, and the sealing is completed. The product film 24 is thus produced. This product film 24 is wound into a roll shape in the film winding portion 48 in step S9. After the winding, it is processed by other processes to form a final product.

<Effects of the first embodiment>

According to the organic EL sealing device 10 shown in Fig. 1 of the present embodiment, the following effects can be obtained.

In the organic EL sealing device 10, the OLED substrate film 21 is formed by attaching a plurality of OLED substrates 22 to a long substrate film 21a at a predetermined interval L1 in the transport direction Y1, and a plurality of OLED substrate films 21 are used. The roller is transported by winding; the transfer roller 52 is attached to the plurality of sealing substrates 17 made of the film material at the same interval from the interval L1 in the direction around the roller; and the rotary moving means is rotated The write roller 52 is rotationally driven freely and moves in the up and down direction perpendicular to the conveyance direction Y1. The conveying means is constituted by using the respective rollers of the guide rollers 30 to 37, the floating rollers 38, 39, the holding rollers 41 to 43, and the film winding portion 48. The rotary moving means is constituted by a sealing substrate attaching mechanism 51 having a support portion 53 that supports the transfer roller 52 to rotate freely.

Next, the organic EL sealing device 10 is constructed such that the transfer roller 52 attached to the transfer roller 52 is abutted against the OLED attached to the OLED substrate film 21 by the rotational movement means. In the substrate 22, the rotation operation of the transfer roller 52 by the rotational movement means is performed, and the sealing substrate 17 is attached to the OLED substrate 22 in synchronization with the conveyance operation of the OLED substrate film 21 by the transfer means. Sealed.

According to this configuration, it is possible to perform a manufacturing operation in which the sealing substrate 17 is bonded to the OLED substrate 22 and then sealed, and the plurality of sealing substrates 17 are successively bonded by the transfer roller 52 to the OLED substrate conveyed by the winding method. Each OLED substrate 22 of the film 21. Therefore, the production time of the manufacturing operation can be shortened, and the manufacturing operation can be performed efficiently.

Further, the rotational movement means is configured to move the transfer roller 52 to abut the end of the sealing substrate 17 attached to the transfer roller 52 to the end of the OLED substrate 22 to transfer the rotation of the roller 52. Laminating the sealing substrate from one end of the abutted OLED substrate 22 toward the other end 17.

According to this configuration, the sealing substrate 17 is gradually removed from the end portion and is attached to the OLED substrate 22, and is sealed so that no air bubbles are generated between the OLED substrate 22 and the sealing substrate 17.

In addition, the roller used in the transport means (the roller 30 shown in FIG. 3) is configured to have the OLED substrate 22 attached to the OLED base film 21 with the sealing substrate 17, and has a transport direction. The concave portion of the OLED substrate 22 and the sealing substrates 17, 17a protruding from the OLED substrate film 21 can be formed.

According to this configuration, even if the OLED substrate 22 and the sealing substrates 17 and 17a are attached to the elongated OLED substrate film 21 at a predetermined interval in a convex shape, the convex portion passes through the concave portion, and the OLED substrate 22 and the sealing substrate 17 do not. It will damage the damage and can be continuously transported by winding.

Further, the shape of the OLED substrate 22 and the sealing substrate 17 is as large as 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, the two sides have a similar shape, and the center of both sides can be aligned with high precision.

Further, the force F1 constituting the bonded sealing substrate 17 to the OLED substrate 22 is stronger than the force F2 to which the sealing substrate 17 is attached to the transfer roller 52.

According to this configuration, when the sealing substrate 17 attached to the transfer roller 52 is attached and transferred (transferred) to the OLED substrate 22, it can be easily performed.

In addition, the sealing substrate 17 is further bonded to the OLED substrate 22 that has been attached to the OLED substrate film 21, and is cured by heating the sealing substrate 17 (hardening with flexibility). Heating rollers 45a, 45b of the heating means.

According to this configuration, after the sealing substrate 17 is bonded to the OLED substrate 22, the bonding strength of the sealing substrate 17 of the OLED substrate 22 is increased, and the product film 24 can be produced with high quality.

In addition, the configuration further includes a meandering detecting sensor 40 that is a serpentine detecting and correcting means for performing serpentine correction of the OLED base film 21 conveyed by the detecting transport means.

According to this configuration, the OLED base film 21 can be conveyed in a predetermined feed path such as a straight line, and the OLED substrate 22 on the film 21 can be stopped at an appropriate position.

<Application example of the first embodiment>

In the above configuration, the person attaches the sealing substrate 17 to the transfer roller 52, but it can also be performed automatically. In this case, the sealing substrate 17 of the transfer roller 52 is attached to the bonding position of the OLED substrate 22, and the supply means for the sealing substrate 17 is provided at a position on the lower side in the radial direction of the substrate 22 ( Not shown). However, the description of the supply means will be carried out next, but the constituent elements are not shown.

The supply means includes a first means for conveying a roll film by a plurality of rollers by a plurality of rollers, and the sheet is adhered at the interval L1 (Fig. 2A) and weaker than the adhesive force F2. Force F3 stickers A sealing substrate 17 is attached to the elongated film. Further, the second means is provided so that the sealing substrate 17 on the sheet conveyed by the first means is conveyed in synchronization with the rotation of the transfer roller 52, and is brought into contact with the transfer roller 52. The sealing substrate 17 is transferred from the winding sheet to the transfer roller 52 while the circumferential surface at the position opposite to the position is opposed.

According to this configuration, the following effects can be obtained. When the sealing substrate 17 is transferred from the transfer roller 52 to the OLED substrate 22, the portion of the transfer roller 52 that has been attached to the sealing substrate 17 becomes nothing, but the transfer roller 52 is further rotated. In the portion where there is no such thing, the sealing substrate 17 on the sheet which has been transported by the first means is attached to the transfer roller 52 by the second means. This transfer operation is continuously performed, so that the bonding of the transfer substrate 52 to the sealing substrate 17 of the OLED substrate 22 can be continuously performed.

<Configuration of Second Embodiment>

FIG. 6 is a view showing a configuration of a main configuration of an organic EL sealing device 60 according to a second embodiment of the present invention as seen from the side surface direction. In the organic EL sealing device 60 shown in Fig. 6, the same components are denoted by the same reference numerals as those of the organic EL sealing device 10 of the first embodiment shown in Fig. 1, and the description thereof will be appropriately omitted.

The organic EL sealing device 60 is attached to the OLED substrate 22 of the OLED base film 21 shown in FIG. 2A conveyed by the winding method, and is processed by a batch process, which is not shown in the figure indicated by the arrow Y1. The substrate 17 is sealed and sealed to a state as shown in FIG. 2B. Thus, a product film 24 of an electrical product used in an organic EL illumination device or the like is produced. Further, the organic EL sealing device 60 may also be disposed in a nitrogen (N ₂ ) environment.

However, the sealing substrate 17 is formed of a film material, a glass material, or the like; the surface of the OLED substrate 22 is also formed of a film material, a glass material, or the like. In the present embodiment, the surfaces of the substrates 17, 22 are formed together as a film material.

The organic EL sealing device 60 includes: guide rollers 30 to 35, 35a, 35b, 36, 37 that convey the OLED base film 21 in a horizontal direction indicated by an arrow Y1; floating rollers 38, 39; The film winding portion 48 on the most downstream side is subjected to UV (ultraviolet) irradiation on the sealing substrate 17 after sealing the OLED substrate 22 to form a product film 24, which is wound into a roll shape. However, in FIG. 6, the component symbol 17a is given to the sealing substrate 17 after hardening.

Further, the guide rollers 30-35, 35a, 35b, 36, 37, the floating rollers 38, 39, and the pinch rollers 41, 43 are simply referred to as rollers 30-35, 35a, 35b, 36, 37, 38, 39, 41, 43. The OLED base film 21 and the product film 24 are also simply referred to as films 21 and 24. The sealing substrate 17 and the OLED substrate 22 are simply referred to as substrates 17 and 22.

Further, the rollers 30 to 35, 35a, 35b, 36, and 37 disposed on the lower side of the films 21 and 24 have the same configuration as the roller 30 shown in Fig. 3 and the first embodiment.

Further, the organic EL sealing device 10 shown in FIG. 6 is provided with a meandering detecting sensor 40 which is disposed on the pinch roller 41 The downstream side; a vacuum pressure sealing mechanism 62 disposed between the guide rollers 33 and 34; and a UV illuminator 71 disposed between the guide rollers 35 and 35a.

The meandering detection sensor 40 is a meandering detection film 40, and includes a meandering correction unit (not shown) to correct the serpentine detection and correction means of the meandering.

The vacuum pressure sealing mechanism 62 is configured to include a bed bottom portion 63, an upper bed portion 64, a distribution portion 65, and an imaging portion 66.

The bed forming portion 63 is configured to include a frame bed 63a having a concave shape in which the bottom surface is surrounded by a square frame, a flat bed table 63b disposed in a concave frame of the frame bed 63a, and a top portion of the flat bed table 63b. A flat heater 63c and an XYZθ moving mechanism 63d on the surface side.

The XYZθ moving mechanism 63d has an XYZθ moving function, and the outer frame bed 63a is freely moved in the Z direction of the vertical direction (the double direction arrow Y12) perpendicular to the horizontal direction and the double direction of the film 21 in the transport direction Y1. In the X direction, the Y direction orthogonal to the X direction on the horizontal plane, and further, the center of the outer frame bed 63a is used as a shaft to rotate the frame bed 63a clockwise or counterclockwise on the horizontal plane. Specify the angle θ. Further, the XYZθ moving mechanism 63d has a function of also moving the flat bed 63b in the Z direction.

In the state in which the frame bed 63a is moved in the front direction toward the Y-direction, and the flat bed 63b is seen from above, the person sets the sealing substrate 17 on the flat bed 63b.

The upper bed portion 64 has a flat plate shape and is disposed above the frame bed 63a outside the OLED base film 21, on the bottom surface side of the flat plate shape. The heater 64a is incorporated in the (transport side of the film 21).

The distribution unit 65 is disposed outside the concave frame of the outer frame bed 63a, as indicated by the horizontal and vertical arrow Y13, and is the sealing substrate 17 set on the flat bed table 63b as it is moved in the XYZ direction. A UV coating agent (not shown) is applied thereon. This coating is a predetermined state in which the sealing substrate 17 is coated in a uniform shape or a sectional shape or the like.

The imaging unit 66 is configured to be movable in the transport direction of the film 21 and the reverse direction as shown by the double-directional arrow Y14, and includes the upper lens portion 66a, the lower lens portion 66b, and the lens portion. A polarizing mechanism 66c such as 稜鏡 between 66a and 66b. The polarizing means 66c has a function of switching the incident light from the upper or lower lens portion 66a or 66b.

The upper lens portion 66a captures a mark for alignment of the OLED substrate 22 of the film 21 at a predetermined position below the upper bed 67, and the lower lens portion 66b captures a sealed substrate set on the flat bed 63b. The mark used for the alignment of 17. In other words, after the mark of the upper OLED substrate 22 is imaged by the lens portion 66a, the polarizing means 66c is switched to the lower lens portion 66b, and the lower portion of the sealing substrate 17 is photographed by the lens portion 66b. However, each of the marks may be located on both side edges along the conveyance direction of each of the substrates 22 and 17.

When the markings of both the OLED substrate 22 and the sealing substrate 17 do not match, the outer frame bed 63a on which the sealing substrate 17 is placed is moved by XYZθ by the XYZθ moving mechanism 63d. The markings of both parties are the same. After the matching, the imaging unit 66 moves to the outside of the frame of the outer frame bed 63a.

Further, the XYZθ moving mechanism 63d moves the outer frame bed 63a upward in accordance with the matching of the two marks, and the OLED substrate 22 is housed in the outer frame bed 63a as shown by the broken wire frame in Fig. 6 . After the inside of the concave frame, the upper end of the concave frame is abutted against the bottom surface of the upper bed portion 64 without a slit to form a sealed space. Thereafter, the air (nitrogen gas) in the sealed space is evacuated by a vacuum pump (not shown) of the vacuum pressure sealing mechanism 62 to be in a vacuum state. In the sealed space in a vacuum state, the flat bed table 63b is moved upward, and the coated surface of the UV coating agent of the sealing substrate 17 is brought into contact with the OLED substrate 22.

Further, in the case where the sealing substrate 17 is brought into contact with the OLED substrate 22, the UV coating agent is not allowed to overflow from the substrates 17 and 22 that have been abutted. That is, the sealing substrate 17 is abutted against the OLED substrate 22 in a state where the coating thickness of the UV coating agent for the sealing substrate 17 is maintained at a predetermined thickness. By the way, the UV coating amount is likely to overflow, and if the coating amount is too small, the coating thickness is reduced, and the sealing by the curing of the UV coating agent by UV irradiation described later cannot be appropriately performed. Here, a coating thickness which can be sealed with an appropriate hardening strength is achieved.

After the contact, the OLED substrate 22 is heated by the upper and lower heaters 63c and 64; and the sealing substrate 17 is brought to a predetermined temperature to make the substrates 22 and 17 of the both substrates closer together.

The UV illuminator 71 is an OLED substrate 22 and a sealing substrate 17 which are irradiated with UV to the UV coating agent and sealed as described above to make UV The coating agent is hardened to seal the OLED substrate 22 more strongly to the sealing substrate 17a. However, the above hardening is hardening with flexibility.

However, the conveyance operation of each of the films 21 and 24, the meandering correction operation by the meandering detection sensor 40, the movement operation of the outer frame bed 63a and the flat bed 63b of the XYZθ moving mechanism 63d, and the application of the distribution unit 65 are performed. Operation, imaging operation of the imaging unit 66, alignment operation of the sealing substrate 17 of the OLED substrate 22, vacuum processing operation of the vacuum pressure sealing mechanism 62, heating operation of the heaters 63c and 64a, and UV irradiation by the UV irradiator 71 The operation control of the organic EL sealing device 60, such as actuation, is performed by the control device 101 shown in FIG.

<Operation of Second Embodiment>

Next, an operation of sealing the OLED substrate 22 with the sealing substrate 17 by the organic EL sealing device 60 shown in FIG. 6 will be described with reference to the flow shown in FIGS. 7 and 8. Further, each of the operation control in the description is performed by the control device 101.

In the step S11 shown in FIG. 7, when the sealing substrate 17 is set on the flat bed table 63b shown in FIG. 6, the flat bed table 63b is returned to the designated position for bonding the sealing substrate 17, and the use is made. The dispensing portion 65 applies a UV coating agent to the top surface of the sealing substrate 17.

On the other hand, in step S12, the OLED base film 21 conveyed in a winding manner from the start of the process as indicated by an arrow Y1 in Fig. 6 is passed through the rollers 30 to 35. 35a, 36, 37, 38, 39, 41, and 43 are conveyed while the film winding portion 48 of the most downstream portion is wound. At this time, tension is applied to the film 21 by the floating rollers 38 and 39 without slack, and further, the meandering detection sensor 40 performs meandering correction to appropriately perform the conveyance.

Then, in step S13, the OLED substrate 22 attached to the transported OLED substrate film 21 reaches a predetermined position on the bottom surface side of the upper bed portion 64, and is temporarily stopped and held at a predetermined position.

After the hold, in step S14, the imaging unit 66 captures the marks of both the upper and lower OLED substrates 22 and the sealing substrate 17.

In step S15, it is determined whether or not the marks of both of the captured images are identical. As a result, when it is judged that it is inconsistent (No), in step S16, the XYZθ moving mechanism 63d is used, and the XYZθ moving sealing substrate 17 is set to the frame bed 63a outside the flat bed table 63b, and the two marks are aligned. After the movement, the image is again taken in the above-described step S14, and if it is determined to be "Yes" by the determination in the step S15, the outer frame bed 63a is moved upward by the XYZθ moving mechanism 63d in the step S17.

Through the movement, the outer frame bed 63a, as shown by the broken wire frame in FIG. 6, receives the OLED substrate 22 into the concave frame of the outer frame bed 63a, and the upper end of the concave frame is abutted to the upper bed portion 64. The bottom surface has no slits to form a closed space.

Thereafter, in step S18 shown in FIG. 8, the air (nitrogen) in the sealed space is evacuated by a vacuum pump (not shown) of the vacuum pressure sealing mechanism 62, and the vacuum state is obtained.

Next, in step S19, in the closed space that becomes the vacuum state In the middle, the flat bed 63b is moved upward, and the coated surface of the UV coating agent of the sealing substrate 17 is held in contact with the OLED substrate 22 in a specified state.

After the contact, in step S20, the upper and lower heaters 63c and 64a, the OLED substrate 22, and the sealing substrate 17 are heated to a predetermined temperature, and the substrates 22 and 17 are adhered to each other.

Thereafter, in step S21, the vacuum state is released and the flat bed table 63b is lowered, and the outer frame bed 63a is further lowered to return to the set position of the sealing substrate 17 of the flat bed 63b.

When the outer frame bed 63a is lowered, in step S22, the OLED base film 21 is brought into a transport state from the stopped state, and when it reaches the UV irradiator 71, it is again in a stopped state.

At this time, at the designated position of the upper bed portion 64, the next OLED substrate 22 arrives and is stopped, and the same processing as the above-described steps S11 to S20 is performed on the OLED substrate 22.

Next, in step S23, UV is applied to the OLED substrate 22 and the sealing substrate 17 which are adhered to the UV coating agent by the UV irradiator 71. Thereby, the UV coating agent is hardened to be in a state in which the OLED substrate 22 is firmly sealed by the sealing substrate 17a. The product film 24 is thus produced. The product film 24 is wound into a roll shape in the film winding portion 48 in step S24.

<Effects of the second embodiment>

According to the organic EL sealing device 60 shown in Fig. 6 of the present embodiment, the following effects can be obtained.

The organic EL sealing device 60 includes a transporting means for attaching a plurality of OLED substrates 22 to a long substrate film 21a at a predetermined interval in the transport direction, and using a plurality of rollers. The winding method is carried out; the upper bed portion 64 is disposed above the OLED substrate film 21; and the lower bed portion 63 is disposed below the bed portion 64 of the OLED substrate film 21 At a position, a sealing substrate 17 made of a film material or a glass material (a flat bed table 63b placed on a constituent element of the lower bed portion 63) is placed; the XYZθ moving mechanism 63d serves as a lower bed portion 63. The moving means is moved in the XYZθ direction which is the up, down, left, right, left, and right directions of rotation, and the distribution part 65 is a coating means for applying a UV coating agent which is placed on the sealing substrate 17 of the upper bed portion 64. Further, it is hardened by ultraviolet rays; and the UV irradiator 71 is a UV irradiation means for irradiating ultraviolet rays (UV).

The transport means is constituted by the respective rollers of the guide rollers 30 to 35, 35a, 35b, 36, 37, the floating rollers 38, 39, the pinch rollers 41, 43, and the film winding portion 48.

Next, the transport means stops the predetermined position of the OLED substrate film 21 to be conveyed below the upper bed portion 64 to arrange the OLED substrate 22; the XYZθ moving mechanism 63d is configured to hold the sealed substrate 17 The lower bed portion 63 moves upward, and between the lower bed portion 63 and the upper bed portion 64, the sealing substrate 17 is in contact with the stopped OLED substrate 22 via the UV coating agent, and the UV illuminator 71 is used. UV is applied to the UV coating agent between the abutted OLED substrate 22 and the sealing substrate 17.

According to this configuration, the manufacturing operation of sealing the sealing substrate 17 to the OLED substrate 22 can be performed on the OLED substrate 22 of the OLED substrate film 21 that is transported by the winding method, and placed on the lower bed portion 63. The sealing substrate 17 is moved upward to abut against the OLED substrate 22, and is held between and attached to the upper bed portion 64. Therefore, the sealing operation of the sealing substrate 17 of the OLED substrate 22 can be performed by batch processing, so that a high-efficiency manufacturing operation can be performed.

Further, a vacuum pump (not shown) that is a vacuum means for bringing the opposing space of the bed bottom portion 63 and the upper bed portion 64 into a vacuum state is provided, and is sealed between the lower bed portion 63 and the upper bed portion 64. Before the substrate 17 and the OLED substrate 22 are held in contact with each other, the above-described opposing space is brought into a vacuum state by a vacuum pump, and the holding is performed in the vacuum state.

According to this configuration, the sealing substrate 17 can be bonded to the OLED substrate 22 in a vacuum, and bubbles are not interposed between the substrates 17 and 22, and both of them can be bonded to each other.

Further, the contact with the sealing substrate 17 of the UV coating agent for the OLED substrate 22 is configured to maintain the coating thickness of the UV coating agent at a predetermined thickness or more.

According to this configuration, a UV coating agent having a predetermined thickness or more is interposed between the OLED substrate 22 and the sealing substrate 17, and when the UV coating agent is cured by UV irradiation, the sealing substrate 17 can be flatly bonded to The OLED substrate 22 is hardened in the state.

Also, it is further equipped as a film attached to the OLED base. The imaging unit 66 for the alignment of the plate 22 and the imaging means attached to both of the alignment marks of the sealing substrate 17; before the OLED substrate 22 and the sealing substrate 17 are held in contact with each other, The bed portion 63 below the sealing substrate 17 is moved by the XYZθ moving mechanism 63d so that the marks of both of the images captured by the imaging unit 66 are aligned in a predetermined opposite state.

According to this configuration, both of the OLED substrate 22 on the OLED base film 21 and the sealing substrate 17 placed on the lower bed portion 63 can be aligned in a predetermined opposite state.

Further, the shape of the OLED substrate 22 and the sealing substrate 17 is as large as 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, the two sides have a similar shape, and the center of both sides can be aligned with high precision.

In addition, the configuration further includes a meandering detecting sensor 40 that is a serpentine detecting and correcting means for performing serpentine correction of the OLED base film 21 conveyed by the detecting transport means.

According to this configuration, the OLED base film 21 can be conveyed in a linear state, and the OLED substrate 22 on the film 21 can be stopped at an appropriate position.

Furthermore, the present invention is not limited to the above-described embodiments, and various modifications are included. For example, the above-described embodiments are described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to having all of the configurations described above. Also, one of the constitutions of a certain implementation type can be The configuration may be partially replaced with another embodiment, and a configuration of another embodiment may be added to the configuration of one embodiment. Further, a part of the configuration of each embodiment may be added, deleted, or replaced with another configuration.

Further, each of the above-described configurations, functions, processing units (control units), processing means, and the like may be realized by hardware or a part or all of them, for example, by designing an integrated circuit or the like. Further, each of the above-described configurations, functions, and the like may be realized by software by means of a processor that analyzes and executes a program for realizing each function. Information on programs, tables, files, etc. for each function can be placed in a recording device such as a memory, a hard disk, or an SSD (Solid State Device), or an IC (Integrated Circuit) card or SD (digital security memory) ) Recording media such as cards and DVDs (digital versatile discs).

Also, the control line or the information line shows that it is necessary to take into account the description, but it is not necessary to show all the control lines or information lines on the product. In fact, it is also possible to consider the fact that almost all of the constituents are connected to each other.

Further, the sealing substrate 17 may be attached to the OLED substrate film 21, and the OLED substrate 22 is set to the composition of the transfer roller 52 or the frame bed 63a.

10‧‧‧Organic EL Sealing Device

17, 17a‧‧‧ sealing substrate

21‧‧‧OLED substrate film

22‧‧‧OLED substrate (first substrate)

24‧‧‧Product film

48‧‧‧ Film winding department

30, 31, 32, 33, 34, 35, 36, 37‧‧‧ guide rollers (transport means)

39‧‧‧Floating roller (transport means)

41~43‧‧‧Clamping roller (transport means)

45a, 45b‧‧‧heating rollers (heating means)

52‧‧‧Transfer roller

40‧‧‧Snake detection sensor (snake correction method)

51‧‧‧Seal substrate attachment mechanism (rotary movement means)

53‧‧‧Support (rotary movement means)

54‧‧‧Rotary axis

Claims (10)

An organic EL sealing device is provided with a substrate which is formed by attaching a plurality of first substrates for producing an organic EL element to a long film at a predetermined interval in the transport direction. The transfer method is a transfer of a roller, and a second substrate for producing a plurality of organic EL elements produced by using a film material is attached to the roller circumferential direction at the same interval as the gap; and a rotary moving means is used. The transfer roller is rotatably driven and moved in a vertical direction perpendicular to the conveyance direction; the transfer roller is moved by the rotation moving means to abut the second substrate attached to the transfer roller The first substrate to be attached to the base film, the rotation operation of the transfer roller by the rotational movement means, and the transfer operation of the base film by the transfer means are synchronized 2 The substrate is bonded to the first substrate, and the other is sealed by the other. The organic EL sealing device of claim 1, wherein the first substrate is an OLED substrate, and the second substrate is a sealing substrate. The organic EL sealing device according to claim 2, wherein the rotary moving means is configured to move the transfer roller to abut the end of the sealing substrate attached to the transfer roller to the end of the OLED substrate, The sealing substrate is bonded to the other end from the one end of the OLED substrate that has been abutted by the rotation of the transfer roller. The organic EL sealing device according to claim 2 or 3, wherein the roller used in the conveying means is configured to have the OLED substrate adhered to the base film by the sealing substrate The direction may be formed by projecting a convex OLED substrate and a concave portion of the sealing substrate from the base film. The organic EL sealing device according to claim 2 or 3, wherein a force constituting the sealing substrate to the OLED substrate is stronger than a force for attaching the sealing substrate to the transfer roller. The organic EL sealing device according to claim 2 or 3, further comprising: a heating means for heating the sealing substrate to be cured in a sealed state in which the sealing substrate is bonded to an OLED substrate adhered to the substrate film. An organic EL sealing device is provided with a substrate which is formed by attaching a plurality of first substrates for producing an organic EL element to a long film at a predetermined interval in the transport direction. The upper bed portion is disposed above the base film; the lower bed portion is disposed at a position opposite to the upper bed portion of the base film interposed therebetween, and the organic portion is placed The second substrate produced by the EL element; the moving means is to move the lower bed portion freely in the up, down, left, right, left, and right directions, and in the direction of rotation; and the coating means applies a UV coating agent, and the UV coating agent is loaded. And the ultraviolet irradiation means is applied to the sealing substrate of the lower bed portion; and the UV irradiation means irradiates the ultraviolet rays; and the conveying means stops the predetermined position of the substrate film to be conveyed below the upper bed portion. The first substrate is disposed, and the moving means is configured to move the bed portion below the second substrate and move upward, and between the lower bed portion and the upper bed portion, the (2) the substrate is adhered to the first substrate that has been stopped via the UV coating agent, and the UV coating agent is irradiated to the UV coating agent between the first substrate and the second substrate by the UV irradiation means; the first substrate In the OLED substrate, the second substrate is a sealing substrate, and the organic EL sealing device further includes an imaging means for capturing a mark for alignment of the OLED substrate and a mark for alignment of the sealing substrate. Before both the OLED substrate and the sealing substrate are held in contact with each other, the moving bed means moves the lower bed portion on which the sealing substrate is placed, so that the photographing is performed Section being taken by both parties agreed to a predetermined mark on the state. The organic EL sealing device according to claim 7, further comprising: a vacuum means for forming a vacuum state of the opposing space of the lower bed portion and the upper bed portion; and the lower bed portion and the upper bed portion Before the sealing substrate and the OLED substrate are held in contact with each other, the opposing space is brought into a vacuum state by the vacuum means, and the vacuum state is formed. This grip is made in the middle. The organic EL sealing device according to claim 1, further comprising: a meandering detection correcting means for detecting a meandering of the base film conveyed by the conveying means and performing meandering correction. An organic EL sealing device is provided with a substrate which is formed by attaching a plurality of first substrates for producing an organic EL element to a long film at a predetermined interval in the transport direction. The upper bed portion is disposed above the base film; the lower bed portion is disposed at a position opposite to the upper bed portion of the base film interposed therebetween, and the organic portion is placed a second substrate produced by the EL element; the moving means is to move the lower bed portion freely in the up, down, left, right, left, and right directions, and in the direction of rotation; and the coating means applies a UV coating agent, and the UV coating agent is placed on the bed The sealing substrate of the table portion is cured by ultraviolet rays; and the UV irradiation means irradiates the ultraviolet rays; and the conveying means stops the predetermined position of the substrate film to be conveyed below the upper bed portion. a substrate, wherein the moving means is configured to move the bed portion below the second substrate and move upward, and between the lower bed portion and the upper bed portion, the second substrate is interposed The aforementioned UV The coating agent abuts against the first substrate that has been stopped, and irradiates ultraviolet rays to the UV coating agent between the first substrate and the second substrate that have been contacted by the UV irradiation means; The organic EL sealing device further includes a meandering detection correcting means for detecting a meandering of the base film conveyed by the conveying means and performing meandering correction.