KR100889838B1 - Laminating apparatus and laminating method - Google Patents

Abstract

Application means 12 for applying the resin material M to the bonding surface L1 of the element substrate L, and for bonding the sealing glass U to the element substrate L to which the resin material M is applied. The joining apparatus 10 is comprised with the means 13. The coating means 12 is capable of partially applying the resin material M to a plurality of locations on the bonding surface L1 so as to form an air escape passage 28 between the element substrate L and the sealing glass U. It is installed. The joining means 13 extracts air from the air release passage 28 toward the outside when the bonding force along the air release passage 28 is applied between the element substrate L and the sealing glass U. The sealing glass U is provided so that the sealing glass U can be bonded in the state in which the thin film layer was formed so that the apply | coated resin material M might line up side by side.

Sealing glass, resin material, coating means, element substrate, pressing roller, adsorption pad, bead, thin film layer, EL element, bonding.

Description

Joining device and joining method {LAMINATING APPARATUS AND LAMINATING METHOD}

Fig. 1A is an exploded perspective view of an organic EL element in this embodiment, and Fig. 1B is a schematic cross-sectional view of an organic EL element.

2 is an enlarged cross-sectional view of the organic EL device;

3 is a schematic front view of a bonding apparatus according to the present embodiment;

4 is a schematic perspective view for explaining application of a resin material by a syringe device;

5 is an enlarged cross-sectional view of an element substrate with a resin material applied thereto;

6 is a side view of the main part of the bonding apparatus;

7 is an enlarged front view of an essential part of a bonding apparatus, showing a state in which the sealing glass is adsorbed by the bonding apparatus;

8 is an enlarged front view of an essential part of a bonding apparatus, showing a state in which the sealing glass adsorbed by the bonding apparatus approaches the element substrate;

9 is an enlarged front view of an essential part of the bonding apparatus, showing a state in which the sealing glass is bent in the bonding apparatus;

10 is an enlarged front view of an essential part of a bonding apparatus showing a state in which a part of the sealing glass is brought into contact with an element substrate;                 

11 is an enlarged front view of an essential part of a bonding apparatus showing a state in which a contact region of a sealing glass to an element substrate is enlarged;

12 is an enlarged front view of an essential part of the bonding apparatus, showing a state in which the outside of the sealing glass is pressed by the pressing roller;

13 is an enlarged front view of an essential part of a bonding apparatus showing a state in which a pressing roller moves while pressing;

14 is an enlarged front view of a main part of the bonding apparatus, showing a state in which the pressing roller is moved toward the suction pad side;

15 is an enlarged front view of an essential part of the bonding apparatus, showing a state in which the pressing roller is moved to the end of the sealing glass;

16 is an enlarged front view of an essential part of a bonding apparatus, showing a state in which bonding of the sealing glass is completed and the joining means is raised;

17 (a) to 17 (d) are cross-sectional views of the main parts of the direction orthogonal to the extending direction of the bead B showing the order in which the sealing glass is bonded to the element substrate.

The present invention relates to a joining apparatus and a joining method, and more particularly, joining to prevent bubbles from remaining between the members when joining the first and second members having a predetermined joining surface. It relates to a device and a bonding method.                         

Conventionally, the organic electroluminescent element comprised including the organic electroluminescent part which consists of various electrodes, organic electroluminescence (electroluminescence) material, etc. is known. As this organic EL element, for example, as proposed in Japanese Patent Laid-Open No. 5-182759, it is formed by laminating the organic EL light emitting part on a glass substrate in order to achieve overall thinning while protecting the organic EL light emitting part. There exists a structure which bonded the sealing glass to the element substrate through the photocurable resin. Bonding of the sealing glass in this case is generally carried out by applying a photocurable resin to the whole or one place of the element substrate with the same thickness, and placing and pressing the sealing glass kept in a substantially horizontal shape from above. Is done.

However, in the bonding of the sealing glass in the organic EL element, when the sealing glass is initially in contact with the photocurable resin, they are brought into surface contact, so that air is easily mixed between the photocurable resin and the sealing glass. Lose. Air mixed at that time is disadvantageous in that even if the sealing glass is pressed against the element substrate side, the air is hardly released to the outside, and defective products in a state where bubbles remain inside are easily formed. In particular, in recent years, there has been a demand for an increase in the size of an organic EL element. In such an enlarged organic EL element, air is more easily mixed between the photocurable resin and the sealing glass, and the disadvantage is further prominent. It becomes. Moreover, as an organic EL element, the type of what was provided so that light emission was possible from the organic electroluminescent part toward the opposite side of the said glass substrate is known. In this case, an image display surface formed by light emission from the organic EL light emitting portion is formed on the surface side of the sealing glass. When the bubbles are present, the image quality of the image display surface is lowered, and the product value is significantly lowered. There is also a disadvantage.

The present invention has been devised in view of such disadvantages, and an object thereof is a joining apparatus and a joining method capable of joining the respective members without leaving bubbles between the first and second members having a predetermined joining surface. Is to provide.

In order to achieve the said objective, this invention is a joining apparatus which joins the 1st and 2nd member which has a predetermined joining surface through a predetermined resin material,

At least one of the first and second members may be used to form the air escape passage extending in a predetermined direction between the first and second members when joining the first and second members. It is provided with the coating means apply | coated to the several location of one joining surface, and the joining means which joins the said 1st and 2nd member after the said resin material is apply | coated,

The bonding means extracts air from the air escape passage toward the outside when the bonding force is applied to the first and second members along the extending direction of the air escape passage, and at the same time, the coated resin material The structure of joining the said 1st and 2nd member is employ | adopted in the state in which the thin film layer was formed so that it might line up side by side. According to such a structure, at the time of joining the 1st and 2nd members, the air remaining inside can be separated out to the outside using an air escape passage, and an air bubble is not left between 1st and 2nd members. You can join them without Here, the first member is an element substrate on which an organic EL light emitting part including various electrodes and an organic EL material is formed, while the second member is a protective plate for sealing the resin material, and the coating means is The configuration can be exemplified that the resin material is provided on the bonding surface of the device substrate so that it can be applied.

Moreover, this invention is a joining method which joins the 1st and 2nd member which has a predetermined joining surface through a predetermined resin material,

Partially applying the resin material to a plurality of places so as to form an air escape passage extending in a predetermined direction on at least one joining surface of the first and second members, and each of the first and second members. By applying the bonding force along the extending direction of the air escape passage between the members in a state where the joining surfaces are disposed to face each other, the air is extracted from the air escape passage toward the outside and the coated resin material The thin film layer is formed so that it may line up, and the method of joining the said 1st and 2nd member is also employ | adopted, and the said objective can also be achieved by such a method.

In the present invention, the application means may be provided so as to be able to apply the resin material in a bead shape at predetermined intervals, and the air release passage is formed between each bead. Thereby, mixing of the bubble between the 1st and 2nd member after joining can be prevented by application | coating of a relatively simple resin material.

When the bead is maintained in a dome shape, which is substantially point-contactable at the time of initial contact with at least one other joining surface of the first and second members, as viewed in a cross section orthogonal to the extending direction thereof. good. As a result, at the initial contact immediately after each joining surface comes into contact, their contact area can be reduced, making it difficult to mix air between the first and second members, thereby preventing the bubbles from remaining. . Moreover, the said joining means is further provided with the pressing force provision means which moves while pressing the outer surface of either member of the said 1st or 2nd member, The said pressurizing force provision means is a said 1st or a 1st member. By adopting the configuration that the member moves in the extending direction of the bead while pressing to the other member of the second member, air remaining between the first and second members can be reliably extracted to the outside. . Here, the said joining means includes the holding means which can hold | maintain the said one member, making the one end side of the said one side the base end side, and bending the free end side used as the other end side, and according to the movement of the said pressing force provision means, It is preferable to employ | adopt the structure that the said one member is gradually joined to the said one member toward the free end side from a base end side. This makes it possible to more reliably extract the air to the outside. In addition, the holding means is provided so as to hold the one member while displacing the bending angle of the one member, and is set such that the bending angle gradually decreases in accordance with the movement of the pressing force applying means. By employ | adopting, the said effect can be heightened further.

In addition, as a resin material (photocurable resin) which can be used for this invention, if it is a photocurable resin, it will not specifically limit. For example, optical radical polymerization property which has various (meth) acrylates, such as polyester (meth) acrylate, polyether (meth) acrylate, epoxy (meth) acrylate, and polyurethane (meth) acrylate as a main component Photocationic polymerizable resin which has resin, such as epoxy and vinyl ether as a main component, thiol, ene addition type resin, etc. are mentioned. Among these photocurable resins, an epoxy resin-based photocationic polymerizable resin having a low shrinkage ratio of the cured product, low exhaust gas, and excellent long-term reliability is preferable.

The properties and conditions during the application of the photocurable resin vary depending on the nozzle diameter of the applicator, the discharge amount from the nozzle, the material (surface tension) of the surface to be adhered, the type of the photocurable resin, and the like. It is preferable to have. As a physical property after the photocurable resin is cured, when an organic EL panel or a liquid crystal display panel is assumed as an element substrate, it is preferable that the transparency of light (visible light region) is high and colorless and transparent. Specifically, in the case of a film thickness of 50 to 60 µm (as a cured product of the photocurable resin), a light transmittance of 70% or more (preferably 80% or more) is very suitable.

Furthermore, since the cured product of the photocurable resin is filled between the element substrate and the protective plate and formed to reinforce each other, it is necessary to sufficiently adhere to each substrate material and to be flexible to absorb deformation caused by external stress. Elastic). Specifically, it is preferable that it is 30-60 by Shore A by the hardness tester.

In addition, in this specification, "bead" means the resin material apply | coated in the continuous linear shape.                     

(Detailed Description of the Preferred Embodiments)

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring drawings.

Fig. 1 (a) shows a schematic exploded perspective view of an organic EL (electroluminescence) element formed by the bonding apparatus according to the present embodiment, and Fig. 1 (b) shows a schematic sectional view of the organic EL element. In these figures, the organic EL element S is a device substrate L as a substantially rectangular shaped light-emitting body (first member) in plan view in which an organic EL light emitting portion E including various electrodes, organic EL materials and the like is formed. ) And the colorless and transparent which are bonded to the bonding surface L1 which becomes the upper surface side of the organic EL light emitting part E through a resin material M (photocurable UV resin) to protect the organic EL light emitting part E. It is comprised by the sealing glass U (second member) which becomes substantially square shape by planar view.

The element substrate L is formed by stacking the organic EL light emitting portion E on a colorless transparent glass substrate G, as shown in an enlarged view in FIG. The organic EL light emitting portion E is not particularly limited, but the organic layer E2, the electrode E3, the metal or the resin made of an electrode E1, an organic EL material or the like which becomes opaque from the glass substrate G side It is formed by sequentially laminating the protective layer E4 formed of the material or the like. For this reason, the organic EL element S of this embodiment emits light from the organic EL light emitting portion E to the side of the sealing glass U, which is the opposite side to the glass substrate G, and the light is emitted from the resin layer ( It will pass through M) and the sealing glass U, and will show to the outside. Therefore, in this embodiment, the upper surface side in FIG. 2 of the sealing glass U becomes an image display surface.

The organic EL element S uses the bonding apparatus 10 schematically shown in FIG. 3, and seals the glass U through the resin material M on the bonding surface L1 of the element substrate L. FIG. It is formed by bonding. In addition, below, the term which shows the position or direction, such as "front", "after", "left", "right", "up", "bottom", "front", and "internal longitudinal length", is specifically stated. Unless otherwise, FIG. 3 is shown the position or direction in the case seen from the front side.

The bonding apparatus 10 includes a mounting table 11 on which the element substrate L and the sealing glass U are placed, and the resin material is located above the mounting table 11. Application means 12 for applying (M) to the bonding surface L1 of the element substrate L on the mounting table 11, and the element substrate coated with the resin material M by the application means 12 ( Control panel for bonding the sealing glass (U) to the L) and the lower space of the mounting table 11, and the control panel for controlling various operations such as the coating means 12 and the bonding means (13) It is provided with 14. 3, the code | symbol 15 is an operation display part of the bonding apparatus 10 which consists of a display, various indicators, etc. In FIG.

In the mounting table 11, the element substrate L is provided in the right region of the top surface 11A, and the sealing glass U is provided in the left region thereof. In a plurality of outer portions of the installation region of these element substrates L and the sealing glass U, a click portion 11B which can be projected from the top surface 11A by an operation knob not shown is provided, and the click portion 11B is provided. ), The movement of the element substrate L and the sealing glass U in the surface direction in the installation area is restricted.

The application means 12 includes a syringe device 16 capable of discharging the resin material M, and a syringe moving means 17 for moving the syringe device 16 along a predetermined trajectory. Consists of. The syringe device 16 is installed on the syringe body 19 provided with a structure capable of pressurizing the resin material M from a tank (not shown) and the tip side of the syringe body 19, and the syringe body 19 And a nozzle 20 capable of discharging the internal resin material M in a bead shape. In the present embodiment, three syringe devices 16 are provided in the paper plane orthogonal direction in FIG. 3, and as shown in FIG. 4, three beads B are simultaneously moved in accordance with the movement of the syringe device 16. ) Can be formed. As shown in FIG. 5, the resin material M is set to the viscosity in which the cross-sectional shape of the bead B before joining the sealing glass U is maintained in the shape which substantially follows the shape of the dome, It is set to the viscosity at which partial liquid pooling does not occur in the beads (B). Here, the curvature of the upper part of the said beads B is provided so that point contact may be carried out at the time of initial contact with the sealing glass U as seen from the cross section orthogonal to the extending direction.

As shown in Fig. 3, the syringe moving means 17 has a structure in which the syringe device 16 is movable in the orthogonal triaxial direction by a predetermined driving device. That is, the syringe moving means 17 is fixed to the X-axis moving body 24 and the X-axis moving body 24 which can move in the left-right direction along the guide 22 extending in the left-right direction from the inner longitudinal length side. At the same time, the rail 25 extending in the paper plane orthogonal direction in Fig. 2 and the rail 25 are supported relative to each other in the extending direction thereof, and the syringe device 16 can be moved relative to the vertical direction. It comprises the Y-axis moving body 26 to support. The syringe moving unit 17 is provided with a syringe device such that a plurality of substantially linear beads B are formed at predetermined intervals along the left and right directions on the joining surface L1 of the element substrate L provided on the mounting table 11. It is to be able to move (16). At this time, an air escape passage 28 (see FIG. 5) is provided between the beads B to allow air to escape to the outside during bonding of the sealing glass U. FIG. Further, a UV lamp 30 for curing the resin material M is attached to the lower end side of the Y-axis moving body 26.

The bonding means 13 is sealed glass U using a substantially box-shaped support 32 whose front and top surfaces are opened, supported by the support 32, and using suction force from a vacuum pump (not shown). The holding means 33 capable of adsorption holding and holding, the support 32, and the pressing force applying means 34 movable in the horizontal direction while pressing the outer surface of the sealing glass U, and the support 32 up and down. It is comprised by the support body moving means 36 which move to a left-right direction.

The support 32 is located between the bottom portion 38, the side portions 39 and 40 provided on the left and right ends of the bottom portion 38, and the inner longitudinal length side of these side portions 39 and 40. It is provided with the back part 41 made.

The holding means 33 is located at the right end side of the bottom portion 38 and is fixed to the variable adsorption device 43 for sucking the right end side of the upper surface of the sealing glass U, and the bottom end side of the bottom portion 38. At the same time, the adsorption block 44 which adsorb | sucks the upper left end side of the sealing glass U is comprised.                     

The variable adsorption device 43 includes an adsorption pad 46 for adsorbing the sealing glass U, a body part 47 to which the adsorption pad 46 is attached, these adsorption pads 46 and a body part ( It is comprised by the biaxial movement mechanism 49 which makes 47 relatively movable with respect to the support body 32 in the up-down, left-right direction. Many suction pads 46 are provided in the paper plane orthogonal direction in FIG. 3 (refer FIG. 6), and are supported by the main-body part 47 so that they can rock to an up-down direction. The biaxial movement mechanism 49 includes a fixed block 51 fixed to the side portion 40 on the right side, a Z-axis moving body 52 attached to the fixed block 51 so as to be movable in the vertical direction, The X axis direction moving body 53 is attached to the lower end side of the said Z axis direction moving body 52 so that relative movement is possible to the left-right direction, and the main-body part 47 is fixed. The two-axis moving mechanism 49 can move each of the moving bodies 52 and 53 in a predetermined direction at a predetermined timing and speed by driving of a driving device (not shown), whereby the suction pad 46 ) And the main body portion 47 are movable up, down, left and right with respect to the support (32). Here, the adsorption pad 46 is provided so that the adsorption surface at the lower end thereof can be raised to a position higher than the adsorption surface at the lower end of the adsorption block 44, whereby the sealing glass adsorbed to the adsorption block 44 ( With the left end side region of U) as the proximal side, the free end side serving as the right end side region of the sealing glass U adsorbed to the suction pad 46 can be bent upward. At this time, the bending angle is displaced in accordance with the lifting and lowering of the suction pad 46.

The pressing force applying means 34 is located between the variable adsorption device 43 and the adsorption block 44 and extends in the orthogonal direction of the paper surface in FIG. 2, and the pressing roller 55 rotates. The roller support member 56 which supports it possible, and the cylinder 57 which raises and lowers the said roller support member 56 and the compaction roller 55 are comprised. The pressing roller 55 is placed on the upper surface of the sealing glass U from the state in which the pressing roller 55 is held above the sealing glass U held by the suction block 44 and the suction pad 46. In addition to being able to contact the pressing roller 55, the sealing glass U is attached to the element substrate L in order to apply a predetermined pressing force to the sealing glass U from above. It is. Moreover, the press roller 55 is provided so that the movement to the left-right direction along the bottom part 38 of the support body 32 with the cylinder 57 is carried out, and, thereby, the pressing position of the sealing glass U is adjusted. It can be displaced in the horizontal direction.

The support moving means 36 has a structure that enables the support 32, the holding means 33, and the pressing force applying means 34 to simultaneously move in the vertical direction or the left and right directions at a predetermined timing by a driving device or the like not shown. In this embodiment, a structure in which the support 32 is attached to the X-axis moving body 59 that is movable in the left and right directions along the guide 22 so as to be movable in the vertical direction is adopted. have.

Next, a method of bonding the sealing glass U to the element substrate L using the bonding apparatus 10 according to the present embodiment will be described with reference to FIGS. 3 and 7 to 16.

First, as shown in FIG. 2, while the bonding surface L1 is made into the surface side, the element substrate L is provided in the right side area | region on the top surface 11 of the mounting table 11, and the sealing glass U is carried out. Is installed in the same left region, and the click portion 11B is raised to regulate the movement of the element substrate L and the sealing glass U in the plane direction. Then, application of the resin material M by the application means 12 is started. In other words, the syringe device 16 is moved by the syringe moving means 17 so that the tip end side of the nozzle 20 is opposite to the one end side in the left and right direction of the bonding surface L1 to start discharging the resin material M. FIG. By the reciprocating movement of the syringe apparatus 16 in the left-right direction, many substantially linear beads B (refer FIG. 4) extended in the same direction are formed on the joining surface L1 every predetermined distance. At this time, the coating amount of the resin material M, the length and pitch of the bead B, and the like can be arbitrarily set, whereby the resin layer after the element substrate L and the sealing glass U are bonded together. Thickness, etc. can be controlled arbitrarily. After the application of the resin material M is finished, the whole application means 12 moves to the inner longitudinal length side of the apparatus, thereby creating a space in which the joining means 13 can be located.

Next, the sealing glass U by the bonding means 13 is bonded. First, the support body 32 descends from the state of FIG. 3, and as shown in FIG. 7, the adsorption block 44 and the adsorption pad 46 are provided with the sealing glass U positioned below the support body 32. Adsorbed by From this state, as the support body 32 ascends as a whole, the sealing glass U is lifted above the mounting table 11, and the support body 32 moves to the right direction as it is, and it is shown in FIG. In the same manner, the upper position of the resin material M coated on the element substrate L is reached. At the same time or before and after this, as shown in FIG. 9, the adsorption pad 46 ascends with respect to the adsorption block 44 in the state where the adsorption pad 46 has adsorbed the sealing glass U, thereby adsorbing block 44. The left end region of the side sealing glass U becomes the proximal side, and the sealing glass U is held while bending the free end side of the suction pad 49 side upward. From this state, as shown in FIG. 10, the support member 32 lowers further and the left end side area | region of the sealing glass U is made to contact the resin material M first. At this time, as shown in FIG. 11, the adsorption pad 46 is slightly lowered with respect to the adsorption block 44, whereby the contact area between the sealing glass U and the resin material M is slightly to the right. It expands and the resin material M located under the crimping roller 55 is pressed and crushed.

Thereafter, as shown in FIG. 12, in the state where the pressing roller 55 is located near the adsorption block 44, the cylinder 57 is operated, and the pressing roller 55 descends while the adsorption block 44 and The upper surface of the sealing glass U held in the suction pad 46 is brought into contact with each other, and a predetermined pressing force is applied to the left end region of the sealing glass U. And, as shown in FIG. 13, while pressing the sealing glass U to the element substrate L with the pressing roller 38, the pressing area | region is moved to the right side gradually, and the sealing glass U moves from the left side. It is increasingly joined towards the right. At this time, in accordance with the movement of the pressing roller 38, the suction pad 46 is lowered with respect to the suction block 44, and bonded while gradually decreasing the bending angle of the sealing glass (U).

And, as shown in FIG. 14, when the press roller 55 reaches the right end side position of the sealing glass U, the adsorption pad 46 will release | release adsorption to the sealing glass U, and FIG. As shown, the suction pad 46 and the main body 47 move to the right with respect to the press roller 55, and the suction pad 47 and the main body 46 are retracted outward of the sealing glass U. As shown in FIG. Let's do it. And the press roller 55 is further moved to the right end of the sealing glass U, and the bonding of the sealing glass U is complete | finished. And the adsorption | suction of the adsorption block 44 to the sealing glass U is also released, as shown in FIG. 16, the support body 32 moves to the left direction as a whole ascends, and it waits in the initial position shown in FIG. do. Moreover, UV light is irradiated to the sealing glass U which the bonding was complete | finished by the UV lamp 30 of the coating means 12 from the outer side, and hardening of the resin material M is performed.

Therefore, according to this embodiment, as shown in Fig. 17A, the resin material M is applied to a plurality of places on the element substrate L so that the beads B are formed at predetermined intervals, and at the same time, the beads As shown in Fig. 17B, the sealing glass U is provided in a dome shape in which they are substantially point-contactable at the initial contact when the sealing glass U first contacts the element substrate L. The contact area of the resin material M and the sealing glass U becomes small, and it can make it difficult to mix air between them. In addition, an air escape passage 28 is formed between each bead B, and the pressing force applying means 34 further presses the sealing glass U along the direction in which the air escape passage 28 extends. Since a predetermined bonding force is applied between the element substrate L and the sealing glass U by the pressing force applying means 34, as shown in Fig. 17 (c), each bead is formed by the bonding force. (B) is crushed and deformed into a flat shape, and air is extracted from the air escape passage 28 toward the outside, and as shown in FIG. 17 (d), between the sealing glass U and the element substrate L. FIG. The thin film layer of the resin material M is formed so that each bead B may be lined side by side. Thereby, the effect that the sealing glass U can be laminated | stacked without a bubble remaining between the element substrate L and the sealing glass U is acquired.

In this way, since the bubbles do not remain between the organic EL light emitting part E and the sealing glass U in the organic EL element S formed by the bonding apparatus 10, accurate bonding can be performed. In particular, in the organic EL element S of the type having an image display surface on the opposite glass substrate G side in the organic EL light emitting portion E as in the present embodiment, the deterioration of the image quality of the image display surface is prevented. The organic EL light emitting portion E can be protected without causing.

In the above embodiment, the sealing glass U is bonded to the element substrate L after the resin material M is applied to the organic EL light emitting portion E. On the contrary, the sealing glass U ) May be bonded to the device substrate L after the resin material M is applied.

As the protective plate bonded to the element substrate L on which the resin material M is applied, in addition to the sealing glass U described above, a resin plate or the like can be used as long as it does not affect the characteristics and state of the organic EL element S. It is also possible to apply other members of.

Moreover, the bead B is not limited to the cross-sectional shape of the above embodiment, and various cross-sectional shapes can be adopted as long as the mixing of air can be prevented during the initial contact described above. However, the larger the cross-sectional shape of the upper curvature or flatness is, the smaller the contact area during the initial contact can be, which is more advantageous for preventing the mixing of air at that time.

In addition, in the said Example, although the resin material M was apply | coated in several places in substantially linear form, this invention is not limited to this, As long as an air escape passage can be formed, screen printing etc. are used, and resin material ( M) may be applied to a plurality of places of the element substrate L in other forms such as broken lines, spots or broken lines.

Moreover, although the said bonding apparatus 10 was applied to the bonding of the organic electroluminescent part E and sealing glass U in organic electroluminescent element S, this invention is not limited to this, The various which can be mutually bonded together is carried out. It can also be applied to bonding between members, and the protective plate which protects the light-emitting part of the said light-emitting body can also be bonded to light-emitting bodies, such as a liquid crystal display panel, using the said bonding apparatus 10, for example.

In addition, the structure of each apparatus part in this invention is not limited to the structural example of illustration, A various change is possible as long as it achieves substantially the same effect | action.

As described above, according to the present invention, a resin material is applied to a plurality of places so that an air escape passage is formed between the first and second members, and a bonding force along the air escape passage is formed between the first and second members. When given, air is extracted from the air escape passage toward the outside, and the first and second members are joined in a state where a thin film layer is formed so that the coated resin material is lined up side by side, so that the first and second members are joined. It is possible to join them without bubbles remaining between the two members.

In addition, since the application means was provided so that the resin material could be applied in a bead shape at predetermined intervals, and the air escape passage was formed between the beads, the first and second steps after the bonding were performed by applying a relatively simple resin material. The mixing of bubbles between the members of 2 can be prevented.

Furthermore, since the beads were held in a dome shape which became substantially point-contactable at the time of initial contact with the other joining surface, as seen in a cross section orthogonal to the extending direction thereof, their contact area at the time of initial contact of each member. Can be made small, and air can be prevented from mixing.                     

Moreover, as said joining means, it moves along the extending direction of a bead while pressing one member to the other member side, and according to this movement, the one member which bent | curved was moved from the base end side to the free end side, Since the bending angle is displaced to gradually join the other member, the air remaining between the members can be reliably extracted to the outside.

Claims (8)

In the joining apparatus which joins the 1st and 2nd member which has a predetermined joining surface through a predetermined resin material, At least one of the first and second members may be used to form the air escape passage extending in a predetermined direction between the first and second members when joining the first and second members. It is provided with the coating means apply | coated to the several place of one joining surface, and the joining means which joins the said 1st and 2nd member after the said resin material is apply | coated, The bonding means extracts air from the air escape passage toward the outside when the bonding force is applied to the first and second members along the extending direction of the air escape passage, and at the same time, the applied resin material. And the first and second members are joined in a state in which the thin film layers are formed so as to line up side by side. 2. The device of claim 1, wherein the first member is an element substrate on which an organic EL light emitting part including an electrode and an organic EL material is formed, while the second member is a protective plate for sealing the resin material. And said coating means is provided so that said resin material can be applied onto a joining surface of said device substrate. 3. The bonding apparatus according to claim 2, wherein said coating means is provided so as to be able to apply a resin material in a bead shape at predetermined intervals, and said air escape passage is formed between each bead. The dome shape according to claim 3, wherein the bead has a dome shape which becomes point-contactable at the time of initial contact with at least one other joining surface of the first and second members when viewed in a cross section perpendicular to the extending direction thereof. Bonding device, characterized in that maintained. The said joining means is further provided with the pressing force provision means which moves while pressing the outer surface of either member of the said 1st or 2nd member, And the pressing force applying means moves along the extending direction of the bead while pressing the one member to any other member of the first or second member. 6. The joining means according to claim 5, wherein the joining means includes holding means capable of holding the one member while bending one end side of the one member as the proximal end and bending the free end side serving as the other end side thereof. In accordance with the movement, the said one member is joined to the said other member gradually toward the free end side from the base end side. The joining apparatus characterized by the above-mentioned. The said holding means is set so that the said one member can be hold | maintained while displacing the bending angle of the said one member, and it is set so that the said bending angle may gradually decrease with the movement of the said pressing force provision means. Bonding apparatus characterized in that there is. As a joining method of joining the 1st and 2nd member which has a predetermined joining surface through a predetermined resin material, Applying the resin material to a plurality of places so as to form an air escape passage extending in a predetermined direction on at least one joining surface of the first and second members, and each joining surface of the first and second members In a state in which the members are disposed to face each other, by imparting a bonding force along the extending direction of the air escape passage between the members, the air is extracted from the air escape passage toward the outside and the coated resin material is lined up side by side. Forming a thin film layer so as to form a thin film layer and bonding the first and second members together.

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