TW201520646A - Method and device for manufacturing plate-shaped laminated article - Google Patents

Abstract

To provide a method and a device that make it possible to spread an adhesive near edges of a plate-shaped member, in particular to spread the adhesive thoroughly to corners of a display region. A method for manufacturing a plate-shaped laminate in which a pair of substantially similarly shaped plate-shaped bodies are affixed to each other by an adhesive and a plate-shaped laminate is manufactured, wherein the method for manufacturing a plate-shaped laminate has: a planar application step for scanning a nozzle having a rectangular discharge groove and thereby applying an adhesive in a rectangular shape onto the first plate-shaped body so that no adhesive is present beyond the outer edges of the first and second plate-shaped bodies; a supplementary application step for applying an adhesive, onto the first or the second plate-shaped body, on portions that are in the vicinity of the four corners of the first and second plate-shaped bodies and that have had no adhesive applied thereto in the planar application step or on portions facing said portions so that no adhesive is present beyond the outer edges of the first and second plate-shaped bodies; and an affixing step for affixing the first and second plate-shaped bodies, to which the planar application step and the supplementary application step have been applied, to each other. In addition, a device for carrying out the manufacturing method.

Description

Method and device for manufacturing plate-shaped laminated body

The present invention relates to a method and an apparatus for producing a plate-like laminated body in which a pair of plate-like members are bonded together by an adhesive, and for example, a method for manufacturing a plate-like laminated body in which a plate-like body constituting a liquid crystal display is bonded Method and device.

The liquid crystal display is used for a cover glass for surface protection and a liquid crystal module (display module) which is a plate-like body formed of a substrate on which a liquid crystal layer is formed, a color filter, a backlight, or the like. It is configured by a plate-like volume layer such as a touch panel. The lamination of these plate-like bodies is carried out by bonding them together using an adhesive sheet or a liquid adhesive, but the mainstream method has gradually tended to use a liquid adhesive. As a method of bonding using this liquid adhesive, various methods have been proposed in recent years.

Patent Document 1 is a method of manufacturing a flat display device in which a display panel is bonded to a protective sheet by applying an adhesive resin, and the adhesive resin is cured in a bonded state, and the method is characterized in that: a rectangular shape of the protective sheet A double Y-line pattern is set in the predetermined area of adhesion, and the dot-shaped plurality of coating patterns are arranged on the center line of the double Y-line pattern and the vicinity of the branch line or the like, and are halved with respect to the center line of the rectangle and its vertical Lines are symmetrically configured.

Patent Document 2 is a method for producing a polarizing plate in which a transparent substrate and a polarizing plate are directly bonded via an adhesive, and the method has a first step of extending from any one point on a transparent substrate or a polarizing plate. Above the line, and adjacent 2 The pattern in which the corners of the strips are all less than 180 degrees is coated with an adhesive; and in the second step, the transparent substrate and the polarizer are bonded via an adhesive.

Patent Document 3 is a manufacturing method of a display device in which a transparent substrate is attached to a display panel via an adhesive, and the method is characterized in that: a coating step is performed on a display panel or a transparent substrate in a lattice or plural a predetermined pattern is formed by applying an adhesive; a bonding step, after the coating step, bonding the display panel to the transparent substrate via an adhesive under a reduced pressure atmosphere of less than atmospheric pressure; and a hardening step for bonding After the step, the ultraviolet rays are irradiated to harden the adhesive.

Patent Document 4 is a manufacturing method of a display device having a first panel, a second panel disposed opposite the first panel, and a transparent organic layer disposed between the first panel and the second panel, the method being characterized The method comprises the steps of: arranging an organic substance in a frame on the first panel; hardening the organic substance on the first panel as an outer organic layer; and filling the uncured organic substance on the inner side of the outer organic layer to make the first The first panel and the second panel are opposed to each other; and the uncured organic matter is hardened in the opposite direction.

Patent Document 5 is a manufacturing method of a bonded structure, comprising the steps of: forming a sealing portion by an adhesive around a field of view on a first workpiece; filling an adhesive in the sealing portion; and attaching the second workpiece And the step of forming the sealing portion includes: forming a step of protruding from the flat surface of the first workpiece on a line surrounding the field of view; and forming a notch portion of the notch of the bank portion a step of forming a first conversion portion that converts a flow direction of the adhesive flowing out of the notch portion, a step of forming a second conversion portion that converts a flow direction of the adhesive flowing out from the first conversion portion, and forming The step of extending the flow path of the adhesive of the second converting portion.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open Publication No. 2011-150331

Patent Document 2: Japanese Patent Laid-Open Publication No. 2010-197820

Patent Document 3: Japanese Patent Laid-Open Publication No. 2008-158251

Patent Document 4: Japanese Patent Laid-Open No. 2011-28215

Patent Document 5: Japanese Patent Laid-Open Publication No. 2013-76934

In the field of liquid crystal displays, the bonding of a pair of plate-like bodies (panels) is generally performed by applying an adhesive to any of the plate-like bodies, and superposing another plate-like body thereon, and applying a pressing force. Pressing to spread the adhesive is carried out. At this time, it is desirable to spread the adhesive to the vicinity of the edge of the plate-like body. In particular, it is preferable that the display region of the liquid crystal module is covered with an adhesive having a uniform thickness without loss. However, since the adhesive is a liquid, the corners do not become strictly right angles, and rounded corners are left. As a result, as shown by a broken line in the right diagram of Fig. 18(a), a state in which the corner portion of the display region is not filled with the adhesive is generated. Therefore, the following problems (question 1) occur, that is, there is no support for the reinforcing and reinforcement of the plate-like bodies at the corners, so that slight deformation is likely to occur when a slight force is applied, and thus the color is uneven and the color is broken. Hey.

In order to avoid the occurrence of the above problem 1, it is conceivable to apply a large amount of the adhesive in advance, but since the display region is formed to be almost near the edge of the plate-like body, as shown by a broken line in the right diagram of FIG. 18(b), In addition, there is another problem that the adhesive also spreads to a portion other than the corner portion and overflows toward the outside of the plate-like body B2 at the time of bonding (question 2).

In the state of Fig. 18 (a), it is also possible to place a certain time after the bonding, by capillary The phenomenon causes the liquid to permeate to the corners, but this is too time consuming, and the individual differences may cause errors in time, so this method is not realistic.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method and apparatus for dispersing an adhesive to the vicinity of an edge of a plate-like body, particularly to a corner portion of a display region without loss.

In the method of producing a plate-like laminated body by bonding a pair of plate-like bodies by an adhesive, the inventors obtained a corner portion of four corners when the adhesive is applied to the plate-like body in a planar shape. Knowledge of the rounded corners will be obtained, and based on the assumption that a good adhesive coating can be obtained by recoating the corners of the four corners, the present invention has been completed by careful study.

That is, the present invention is constituted by the following technical means.

The present invention relates to a method for producing a plate-like laminated body, which is a method for producing a plate-shaped laminated body, in which a plate-like laminated body is produced by laminating one of substantially similar shapes with an adhesive by an adhesive. In this method, the method includes a planar coating step of forming a nozzle having a square-shaped ejection groove on the first plate-shaped body so as not to overflow from the outer edges of the first and second plate-shaped bodies. Scanning, thereby applying the adhesive into a square shape; and supplementing the coating step on the first or second plate-like body so as not to overflow from the outer edges of the first and second plate-like bodies Adhesives are applied to the vicinity of the four corners of the first and second plate-like bodies and are not coated with the adhesive portion or the portions facing the portion in the planar coating step; and the bonding step And bonding the first and second plate-shaped bodies through the surface coating step and the supplementary coating step.

In the invention of the method for producing a plate-like laminated body, it is preferable that in the supplementary coating step, the adhesive is applied by a coating pattern in which the shape of the diagonal is symmetrical. Coating, the diagonal line includes an apex of a corner portion to be coated, and it is still more preferable that the coating pattern of the coating pattern step includes a pattern composed of dots and/or lines, or The coating pattern of the above-mentioned supplementary coating step includes an L-shaped pattern.

In the invention of the method for producing a plate-like laminated body, the adhesive may be applied to the first plate-like body in the supplementary coating step.

In the invention of the method for producing a plate-like laminated body, the adhesive coating agent may be applied to the second plate-shaped body in the supplementary coating step, and further characterized in that: The above-described planar coating step and the above-described supplementary coating step are carried out in parallel.

In the invention of the method for producing a plate-like laminated body, the surface coating step may be performed by causing the nozzle to be orthogonal to the width direction of the first plate-shaped body. The adhesive is applied by scanning, and the nozzle has a jetting groove portion which can apply a required amount of the adhesive in a single direction in the width direction of the first plate-shaped body.

In the invention of the method for producing a plate-like laminate, the plate-like laminate obtained by laminating the first and second plate-like members may be a component of a liquid crystal display.

The present invention relates to a device for manufacturing a plate-like laminated body, which is a device for producing a plate-like laminated body, which is formed by laminating one of substantially similar shapes to an adhesive body to form a plate-like laminated body. A surface coating apparatus comprising: a surface coating device that applies an adhesive to a square shape on a plate-like body; and a corner coating device that applies an adhesive to each of four corner portions of the plate-shaped body; a device for bonding first and second plate-shaped bodies coated with an adhesive; a conveying device for contacting a surface coating device, a corner coating device, and a bonding device; and a control device and controlling The apparatus includes: (a) the surface coating apparatus is mounted on the first plate-shaped body, and the nozzle having the square-shaped ejection groove is scanned so as not to overflow from the outer edges of the first and second plate-shaped bodies , whereby the adhesive is applied to the square shape; (b) the corner coating device is on the first or second plate body, from the first and the first a method in which the outer edge of the two plate-shaped bodies does not overflow, and the portion of the first and second plate-shaped bodies that are not coated with the adhesive or is opposed to the portion by the surface coating device And (c) a means for applying a bonding agent to the plate-like body by applying one of the adhesives by the corner coating device.

In the invention of the apparatus for manufacturing a plate-like laminated body, the surface coating apparatus may include: a surface discharge device; a table on which a coated object is placed; and an XYZ direction moving mechanism; The surface discharge device moves relative to the object to be coated placed on the table, and the corner coating device is mounted on the XYZ direction moving mechanism of the surface coating device by the refilling device. And constitute.

In the above aspect of the apparatus for manufacturing a plate-like laminated body, the surface discharge device may be provided with a nozzle which can be required in a single direction in the width direction of the first plate-shaped body. The groove for ejection of the length to which the adhesive is applied.

In the present invention, the apparatus for manufacturing a plate-like laminated body may further include an inverting device for vertically turning the plate-shaped body upside down, and further characterized by a surface coating device and a corner coating device. The cloth device, the bonding device, the inverting device, and the conveying device are mounted on the same rack.

In the invention of the apparatus for manufacturing a plate-shaped laminated body, the plate-shaped laminated body obtained by bonding the first and second plate-shaped bodies may be a component of a liquid crystal display.

According to the present invention, since the adhesive can be applied to the vicinity of the corner portion of the plate-like laminated body, the plate-like bodies can be firmly fixed to each other, and deformation and breakage can be prevented. In addition, the failure of the overflowing adhesive can be eliminated.

Further, since the adhesive having the outer edge from the outer edge of the plate-like body can be applied, the pressing force required for the bonding can be minimized.

According to the present invention having a configuration in which a plurality of types of coatings are processed in parallel, the shrinkable Short coating and lamination work time.

1‧‧‧Plate A

2‧‧‧Plate B

3‧‧‧Adhesive

4‧‧‧Display area

5‧‧‧ Face coating direction

6‧‧‧Adding coating direction

7‧‧‧Faceous ejection device

8‧‧‧Supply spouting device

9‧‧‧ Film coating nozzle

10‧‧‧Inlet

11‧‧‧Small tube

12‧‧‧ spouting spout

13‧‧‧First paragraph

14‧‧‧The second paragraph

15‧‧‧The third paragraph

16‧‧‧First Division of Disagreement

17‧‧‧The second division

18‧‧‧The third division

19‧‧‧First divergent flow

20‧‧‧Second divergent flow

21‧‧‧The third paragraph of the divergent flow

22‧‧‧Liquid Department

23‧‧‧ valve body

24‧‧‧ liquid room

25‧‧‧Connected holes

26‧‧‧ valve seat components

27‧‧‧Tubular components

28‧‧‧Nozzle components

29‧‧‧Caps

30‧‧‧ storage container

31‧‧‧First flow path

32‧‧‧Second flow path

33‧‧‧Extension members

34‧‧‧First sealing member

35‧‧‧ droplets

36‧‧‧ Drive Department

37‧‧‧Piston

38‧‧ Air chamber

39‧‧‧Spring Room

40‧‧‧ Spring

41‧‧‧Adjustment screws

42‧‧‧ knob

43‧‧‧Second sealing member

44‧‧‧Switching valve

45‧‧‧Air port

46‧‧‧Compressed gas source

47‧‧‧First pressure reducing valve

48‧‧‧Second pressure reducing valve

49‧‧‧First piping

50‧‧‧Second piping

51‧‧‧Control device

52‧‧‧Adhesive coating device (production line)

53‧‧‧face coating device

54‧‧‧ corner coating device

55‧‧‧Fitting device

56‧‧‧Flipping device

57‧‧‧Face and corner coating devices

58‧‧‧Display area corner

59‧‧‧Adhesive overflow

60‧‧‧ body

61‧‧‧Working table

62‧‧‧Under the workbench

63‧‧‧Upper drive

64‧‧‧lower drive

65‧‧‧vacuum room

66‧‧‧ Move in and out

70‧‧‧Transporting device

71‧‧‧Transfer robot

72‧‧‧ Robot

73‧‧‧ Track

74‧‧‧Roller

80‧‧‧ coating and laminating device

81‧‧‧Workbench A

82‧‧‧Workbench B

83‧‧‧Face coating department

84‧‧‧Refill coating department

85‧‧‧False hardening department

86‧‧‧Fitting Department

87‧‧‧Flip section

88‧‧‧Adhesive hardening device

89‧‧‧Flipping device

90‧‧‧Rack

91‧‧‧Slide rail A

92‧‧‧Slide rail B

93‧‧‧Flip turning device

94‧‧‧Horizontal turning device

Fig. 1 is an explanatory view for explaining a first aspect of an adhesive applying method according to an embodiment of the present invention. Here, (a) a surface coating step, (b) a supplementary coating step, and (c) a bonding step.

Fig. 2 is an explanatory view for explaining the shape of the adhesive after bonding. Among them, (a) shows a top view, and (b) shows a side view.

Fig. 3 is an explanatory view for explaining a second aspect of the method of applying an adhesive according to an embodiment of the present invention. Here, (a) a surface coating step, (b1) a supplementary coating step, (b2) a turning step, and (c) a bonding step.

Fig. 4 is an explanatory view for explaining a third aspect of the method of applying an adhesive according to an embodiment of the present invention. Here, (a) shows a supplementary coating step, (b1) a display surface coating step, (b2) a display inversion step, and (c) a bonding step.

Fig. 5 is a schematic plan view for explaining a deformation of a supplementary coating. Here, (a) is a case where a plurality of dots are applied, (b) is a case where a plurality of dots of different sizes are applied, (c) is a case where a straight line is applied in an L shape, and (d) is a case where a line is coated. The combination of cloth and dot coating.

Fig. 6 is a cross-sectional view showing a film coating nozzle of the surface ejection device of the first embodiment. (a) is a front cross-sectional view, and (b) is a cross-sectional view taken along line A-A in (a).

Fig. 7 is a schematic cross-sectional view showing the refilling device of the first embodiment.

Fig. 8 is an explanatory view showing a group of apparatuses for carrying out the method of applying an adhesive according to the first embodiment. Among them, (a) a display surface coating device, (b) a corner coating device, and (c) a bonding device.

Fig. 9 is a schematic cross-sectional view showing the bonding apparatus of the first embodiment.

Fig. 10 is a schematic plan view of the conveying apparatus of the first embodiment. Among them, (a) is the robot moving For example, (b) is an example of roller transport.

Fig. 11 is an explanatory view showing a group of apparatuses for carrying out the adhesive application method of the second embodiment. Among them, (a) display surface and corner coating device, and (b) display bonding device.

Fig. 12 is a schematic plan view of the conveying device of the second embodiment. Among them, (a) is an example of robot transport, and (b) is an example of roller transport.

Fig. 13 is an explanatory view showing a group of apparatuses for carrying out the method of applying an adhesive according to the third embodiment. Among them, (a) display surface coating device, (b1) display corner coating device, (b2) display inverting device, and (c) display bonding device.

Fig. 14 is a schematic plan view of the conveying apparatus of the third embodiment. Among them, (a) is an example of robot transport, and (b) is an example of roller transport.

Fig. 15 is an explanatory view showing a group of apparatuses for carrying out the adhesive application method of the fourth embodiment. Among them, (a) shows a corner coating device, (b1) a display surface coating device, (b2) displays an inverting device, and (c) displays a bonding device.

Fig. 16 is a schematic plan view of the conveying apparatus of the fourth embodiment. Among them, (a) is an example of robot transport, and (b) is an example of roller transport.

Fig. 17 is a schematic plan view of the coating and laminating apparatus of the fifth embodiment.

Fig. 18 is an explanatory diagram for explaining a conventional technique. Here, (a) shows that the corner of the display area is not filled with the adhesive, and (b) shows that the adhesive overflows to the outside of the plate-shaped body.

Hereinafter, examples of embodiments for carrying out the invention will be described. The first to third aspects are examples of the bonding method of the liquid crystal module and the protective glass (glass panel). In the following description, for convenience, the first plate-shaped body is the plate-shaped body A1, and the second plate-shaped body is the plate-shaped body B2. The first plate-shaped body may be the plate-shaped body B2, and the second plate may be provided. The shape is a plate-like body A1.

<Adhesive Coating Method> (1) First aspect

Fig. 1 is an explanatory view showing a first aspect of an adhesive applying method according to an embodiment of the present invention. The first aspect is applied to both of the pair of plate-like bodies by surface coating and recoating. A pair of plate-like bodies are square plates, and the area of one plate-shaped body is one circle smaller than the area of the other plate-shaped body, and is substantially similar in shape.

First, as shown in Fig. 1(a), for example, the planar ejection device 7 is moved from one end to the other end (one-way scanning) in the direction indicated by the symbol 5 on the plate-like body A1 of the liquid crystal module, and is coated in a planar shape. Cloth adhesive 3. Preferably, the planar coating is a method in which the pressing force required for bonding is minimized, and the outer edge of the four-sided outer edge of the plate-shaped body having a small area is slightly located inside. Coating is carried out. At this time, the applied adhesive 3 has a rectangular shape along the shape of the display region 4, but the four corners cannot be completely right angled and leave a rounded corner. That is, the surface coating referred to in the present invention means a coating having a square shape with rounded corners. Here, the planar coating system applies an area of, for example, 80 to 90% or more of the area of any of the small plate-shaped bodies of the pair of plate-like bodies. The nozzle of the planar ejection device 7 has a spouting groove portion 12 having a length of a desired amount of the adhesive 3 that can be applied at a time in the width direction of the plate-like body A1. The description of the surface ejection device 7 will be described in detail in the examples to be described later.

Next, as shown in Fig. 1(b), at 4 o'clock in the vicinity of the corner portion of the adhesive 3 which is applied to the plate-like body A1 in a planar shape, the refilling means 8 is along the side of the symbol. The direction of movement shown in Fig. 6 complements the application of the adhesive 3 on the one hand. In the first aspect, the additive coating of the adhesive 3 is performed by forming one dot (hereinafter referred to as "dot coating") at each corner portion. At this time, the side surface of the dot-shaped adhesive 3 may be attached to the planar adhesive 3 or may be separated. This is because, when the bonding is performed, the pressing force is applied to the plate-like bodies to each other. Thereby, the adhesive 3 is flattened and then bonded. It is preferable that the distance between the surface-coated adhesive and the dot-coated adhesive is one-half or less of the diameter of the dot formed by the dot coating, and the additional coating is performed. Incidentally, the description of the refilling ejection device 8 will be described in detail in the examples to be described later.

Then, as shown in FIG. 1(c), for example, in a state in which the sheet-like body B2 which is a cover glass is turned over, it is bonded to the plate-like body A1 in which the adhesive 3 is applied in a planar shape and a dot shape. Further, in the case of bonding, the environment around the plate-like body may be set to a low pressure (preferably, the absolute pressure is 500 Pa or less, more preferably 100 Pa or less, particularly preferably 10 Pa or less) or a vacuum state. Do not mix air bubbles in Adhesive 3. This bonding industry uses the bonding device 55. The description of the bonding device 55 will be described in detail in the embodiments to be described later. Further, in the above configuration, the plate-like body A1 is used as the liquid crystal module, and the plate-shaped body B2 is used as the cover glass. That is, the plate-like body A1 is used as a cover glass, and the plate-shaped body B2 is used as a liquid crystal module.

The adhesive 3 adhered in a side view has a shape as shown in Fig. 2 (b), that is, sandwiched between a pair of the plate-like body A1 and the plate-like body B2, and the outer edge of the adhesive 3 is located. The outer edge of the plate-like body A1 is between the outer edge of the display region 4.

The adhesive 3 after the bonding in a plan view has a shape as shown in Fig. 2 (a), that is, four outer edges having substantially the same distance from the four outer edges of the plate-like body A1, and has self- The outer edge extends to the four corners of the four corners of the plate-like body A1 and is slightly semicircular. When viewed from other viewpoints, it has the following shape, that is, four outer edges having substantially equal distances from the four outer edges of the display region 4, and has four corners extending from the display region 4 to the outside. 4 corners of a semicircle. Further, in Fig. 2, the adhesive 3 is shown by a broken line, and the display area 4 is shown by a dotted line. 2(a), it can be seen that the adhesive 3 is replenished by the four corners, so that the adhesive 3 can be reliably filled to the corners of the display region 4 after bonding. This is also obtained according to the second aspect (Fig. 3) and the third aspect (Fig. 4) shown below. The same result.

(2) Second aspect

Fig. 3 is an explanatory view showing a second aspect of the method of applying an adhesive according to an embodiment of the present invention. The second aspect is attached to a pair of plate-like bodies, and is coated on one plate-like body and applied to the other plate-like body.

First, as shown in Fig. 3 (a), for example, on the plate-like body A1 of the liquid crystal module, the planar ejection device 7 is moved from one end to the other end in the direction indicated by the symbol 5, and the adhesive is applied in a planar shape. 3. At this time, the applied adhesive 3 has a rectangular shape along the shape of the display region 4, but the four corners cannot be completely right angled and leave a rounded corner.

Next, as shown in Fig. 3 (b1), for example, in the corners of the protective glass, i.e., the plate-like body B2, the refilling device 8 is moved on the one hand in the direction indicated by the symbol 6 to replenish the coating adhesive 3 on the one hand. . In the second aspect, the supplementary coating of the adhesive 3 is also performed by spot coating. When the pair of plate-like bodies 1 and 2 are bonded together, the application position corresponds to four points in the vicinity of the corner portion of the adhesive 3 which is applied to the plate-like body A1 in a planar shape. position. Here, the spot is applied to the position of the adhesive 3 of the plate-shaped body B2, and the side surface may be attached to the position where the adhesive 3 is applied to the plate-shaped body A1 in a planar shape, or may be a separated position.

Next, as shown in Fig. 3 (b2), the plate-like body B2 which is dot-coated in the four corners is inverted by the inverting means 56 so that the applied surface faces downward. At this time, the plate-shaped body B2 may be inverted after the semi-hardening treatment, so that the shape of the applied adhesive 3 is not deformed. Furthermore, the description of the inverting device 56 will be described in detail in the embodiments to be described later.

Next, as shown in FIG. 3(c), the plate-like body B2 which has been dot-coated and inverted has been bonded to the plate-like body A1 which has been surface-coated by the bonding apparatus 55. Similarly to the first aspect, when the bonding is performed, the environment around the plate body may be set to a low pressure or a vacuum state. So that no bubbles are mixed in the adhesive 3. After bonding, as shown in FIG. 2(a), the adhesive 3 can be reliably filled to the corners of the display region 4. In the second aspect in which the respective plate-like members are subjected to the planar coating and the dot coating, the coating step of the adhesive 3 is performed in parallel, whereby the working time can be shortened.

(3) The third aspect

Fig. 4 is an explanatory view showing a third aspect of the method of applying an adhesive according to an embodiment of the present invention. The third aspect is obtained by exchanging the combination of the type of the plate-like body and the coating type in the second aspect.

First, as shown in FIG. 4(a), for example, on the four corners of the liquid crystal module, that is, the plate-like body A1, the refilling ejection device 8 is moved on the one hand in the direction indicated by the symbol 6 to supplement the coating adhesion. Agent 3. In the third aspect, the supplementary coating of the adhesive 3 is also performed by spot coating. When the pair of plate-like bodies 1 and 2 are bonded together, the coating position corresponds to 4 points in the vicinity of the corner portion of the adhesive 3 which is applied to the plate-shaped body B2 in a planar shape. position. Here, the spot is applied to the position of the adhesive 3 of the plate-shaped body B2, and the side surface may be attached to the position where the adhesive 3 is applied to the plate-shaped body A1 in a planar shape, or may be a separated position.

Next, as shown in Fig. 4 (b1), for example, on the plate-like body B2 which is a cover glass, the planar ejection device 7 is moved from one end to the other end in the direction indicated by the reference numeral 5, and the adhesive 3 is applied in a planar shape. . At this time, the applied adhesive 3 has a rectangular shape along the shape of the display region 4, but the four corners cannot be completely right angled and leave a rounded corner.

Next, as shown in Fig. 4 (b2), the sheet-like body B2 which is subjected to the planar coating is inverted by the inverting means 56 so that the applied surface faces downward. At this time, the plate-shaped body B2 may be inverted after the semi-hardening treatment, so that the shape of the applied adhesive 3 is not deformed.

Next, as shown in FIG. 4(c), the bonding device 55 is used to perform surface coating and flipping. The rear plate-like body B2 is bonded to the plate-like body A1 which has been subjected to dot coating. Similarly to the first aspect, at the time of bonding, the environment around the plate-like body may be set to a low pressure or a vacuum state so that no air bubbles are mixed in the adhesive 3. After bonding, as shown in FIG. 2, the adhesive 3 can be reliably filled to the corners of the display region 4. Further, in this aspect, in the same manner as in the second aspect, by applying the planar coating and the dot coating to each of the plate-like bodies, the coating step can be performed in parallel, so that the working time can be shortened.

(4) Fourth to seventh aspects

In the fourth to seventh aspects, the change in the coating shape of the supplementary coating will be described. In the first to third aspects, the supplementary coating is performed by dot coating in which each corner portion forms a dot. However, in the case where the adhesive is applied in a planar manner, the corner portion of the corner portion is large and the area where the adhesive is not filled is wide, and the shape to be bonded is closer to a right angle, and the like may be in other patterns. It is more preferable to carry out coating than to form one dot at each corner. In the fourth to seventh aspects shown in Fig. 5, a coating pattern suitable for performing planar coating having a large rounded corner portion is provided. Further, in Fig. 5, only one corner portion is drawn, but actually, the four corners are coated in the same pattern.

(a) Fourth aspect [multiple point coating of the same size]

One point was applied at a point corresponding to the intersection (vertex) of the corners, and one application point was applied to each of the application points in the longitudinal direction and the lateral direction to form three coating points in total. In the fourth aspect, each coating point is substantially set to the same size. In the case where the coating is performed by three coating points, it is preferable to form a right-angled triangle when the center of each coating point is joined. The number of coating points formed by the supplementary coating is not limited to three, and for example, it may be applied by two coating points or four or more coating points. Only in the form of shape symmetry Each of the coating points is formed, and the symmetrical shape includes a diagonal line including a vertex of a corner portion to be coated.

(b) Fifth aspect [multiple-sized multi-point coating]

The aspect of supplemental coating with 3 points is in common with the fourth aspect, and differs from the fourth aspect only in terms of supplemental coating by coating points of different sizes. In the fifth aspect, the coating points on the substantial intersections are formed to be larger, and the respective coating points adjacent in the longitudinal direction and the lateral direction are formed to be smaller, but are not limited thereto, and the coating points on the intersection points may also be formed. It is formed to be small, and the respective coating points adjacent in the longitudinal direction and the lateral direction are formed to be large. However, in order to set the distance from the outer edge of the plate-like body to be equal in the longitudinal direction and the lateral direction, the application points of the intersection point are set to the same size as the respective coating points adjacent to the longitudinal direction and the lateral direction. The number of coating points formed by the supplementary coating is not limited to three, and for example, the coating may be performed by two coating points or four or more coating points. However, each of the coating points is formed in a shape symmetrical manner, and the symmetrical shape includes a diagonal line including a vertex of a corner portion to be coated.

(c) Sixth aspect [coated into a straight L-shape]

The corner portion having the rounded corners of the adhesive after the surface coating is applied in a complementary manner to the L-shaped valley. Here, the L-shape is an L-shape in which the lengths of the longitudinal direction and the lateral direction are the same, and the coating pattern is formed such that the shape of the diagonal line including the apex of the corner portion as the supplementary coating object is symmetrical. The L-shaped position is formed by the supplementary coating, and the side surface thereof may be attached to the position of the adhesive 3 applied in a planar shape, or may be a separated position.

(d) Seventh aspect [combination of line and point]

The seventh aspect of the supplementary coating pattern is composed of a coating point corresponding to the intersection (vertex) of the substantial portion of the corner portion, and a coating line between the coating point and the surface-coated adhesive. . The coating line is set to have a curved shape in which the corner portion of the adhesive is applied in a planar manner. good.

According to the fourth to seventh aspects of the above description, even in the case where the corner portion of the surface-coated adhesive has a large rounded corner and a region where the adhesive is not filled is wide, the adhesive can be spread to the corner portion. . Further, the corners of the applied shape of the adhesive after bonding the pair of plate-shaped bodies can be made closer to a right angle.

Here, the application pattern of the recoating application is not limited to the above, and the coating pattern may be such that the shape of the diagonal including the apex of the corner portion of the supplementary coating object is symmetrical, and of course, may be increased or decreased. The number of points or lines, or a combination of various coating shapes.

When the recoating is performed, for example, it is disclosed that the valve body that advances at a high speed is used to collide with a valve seat provided at the end of the flow path of the communication nozzle, or the valve body that advances at a high speed before the collision with the valve body is stopped. The jet type spouting device which sprays the spout from the tip end of the nozzle, and the air-pressure spouting device which ejects the pressure from the nozzle by applying the pressure-adjusted air to the adhesive in the storage container for a predetermined period of time. Here, the ejection type ejection means is preferable for the formation point, but the application pattern may be realized by a straight line composed of a plurality of dots.

Hereinafter, the detailed configuration of the present invention will be described by way of examples, but the present invention is not limited by the examples.

[Example 1] <spit device> (1) planar ejection device

The planar ejection device 7 is provided with a film-like coating nozzle which can apply an adhesive to the surface of the object to be coated in a uniform thickness over a wide range. The film coating nozzle includes a branching block having a branching passage structure, a tip end member having a discharge port having a wide width formed in a longitudinal direction, and a tube portion provided with a plurality of thin tubes, the thin tubes A thin tube outflow port that communicates with the narrow tube inflow port and the spout port that communicates with the tip end member. Here, the divergence block has a plurality of sections which are formed by a chamber in which the flow paths communicating with the inflow port are divided, and the lengths of the flow paths which are different from each other in the divergent portion of the same section are equal. The distal end member has a groove portion constituting the ejection opening, and the length S of the end surface of the ejection opening is configured to be longer than the inner diameter D of the narrow tube outlet, and the narrow tube outlets are substantially equally spaced It is disposed at the innermost part of the above-mentioned groove. For example, a configuration of a film-like coating nozzle described in JP-A-2012-239930, which is proposed by the applicant, is disclosed. Fig. 6 is a cross-sectional view showing the film coating nozzle 9 of the surface ejection device of the first embodiment.

The bifurcated passage structure of the film-like coating nozzle 9 of Fig. 6 is configured such that the adhesive 3 flowing in from one inflow port 10 is divided by three divisions, and a total of 12 thin tubes 11 arranged in a straight line are arranged to be ejected. The groove portion 12 flows in and spits. Specifically, first, the adhesive 3 that has flowed in from the one inlet 10 is branched into two equal and substantially equal lengths of liquid 19 in one branch portion 16 of the branch block 13 provided in the first stage. Next, in each of the two branch portions 17 provided in the branch block 14 of the second stage, the adhesives 3 which are divided in the first stage are further divided into two equal and substantially equal length liquid flows 20. Next, in each of the four branch portions 18 of the branch block 15 provided in the third stage, the adhesives 3 which are divided in the second stage are further divided into three equal and substantially equal-length liquid flows 21. Then, it flows into each of the three narrow tubes 11 that are connected to each of the four branch portions 18 of the branch block 15 provided in the third stage, and flows out from the lower opening of the thin tube 11 toward the ejection groove portion 12, and the discharge from the lower side is spouted. The groove portion 12 is ejected. The divergent flows between the divergent portions disposed in the same divergent block are equal in length.

By making such a configuration, since any of the divergent flows in the divergent portions in the same divergent block are subjected to equal pipe friction and the pressure loss is also equal, thus The amount of the adhesive agent 3 that is disposed in the width direction in the width direction and the amount of the adhesive 3 that flows into the ejection groove portion 12 can be set to be substantially equal. Then, according to this configuration, film coating of a more uniform thickness can be performed. The length of the ejection groove portion 12 is set to be slightly shorter than the width of the plate-like body A1, and the required amount of the adhesive 3 can be applied at a time in the width direction of the plate-like body A1. In the example of FIG. 2, the length of the ejection groove portion 12 is set to be wider than the width of the display region 4 by a width of several mm. Thereby, the applied adhesive 3 is diffused, and the planar coating of the broken line 3 shown in FIG. 2(a) can be realized. In the case where the film coating nozzle 9 is scanned in the short side direction of the plate-like body A1, the length of the ejection groove portion 12 is set to be wider than the upper and lower directions of the display region 4, unlike FIG. 1, FIG. 3 and FIG. The width is mm.

In order to perform the above-described planar coating, the planar ejection device 7 is mounted on the surface coating device 53. In other words, in addition to the surface discharge device 7, the surface coating device 53 is provided (see FIG. 8), and the surface coating device 53 is provided with a tank (not shown) for storing the adhesive 3, An injection valve (not shown) for supplying or stopping the supply of the adhesive 3 supplied from the tank to the nozzle 9, a table on which the object to be coated is placed, and the nozzle 9 and the object to be coated placed on the table Relatively moving XYZ direction moving mechanism.

(2) Supplementary ejection device

Fig. 7 is a schematic cross-sectional view showing the refilling device 8 of the first embodiment. The spouting device 8 for refilling is a so-called jet spouting device which is moved to the valve seat member 26 at a high speed by a side surface of the valve body 23 and the inner side surface of the liquid chamber 24 in a non-contact state and abuts against the valve. The seat member 26 allows the liquid material to be discharged from the spout in the state of liquid droplets. Further, a mechanism for causing the valve body 23 that is rapidly advanced to abut against the valve seat member 26 to be stopped suddenly may be provided, and the valve body 23 may be advanced at a high speed, and then the valve body 23 may be stopped urgently to the liquid. The material exerts an inertial force and is discharged in the state of a droplet.

The refilling device 8 of the first embodiment is mainly composed of a liquid contact portion 22 for discharging the supplied adhesive 3 and a driving portion 36 for moving the piston 37 and the valve body 23 up and down.

The liquid contact portion 22 constitutes a substantially lower half of the main body 60 of the ejection device 8, and mainly includes a liquid chamber 24, a valve seat member 26, a nozzle member 28, a cap member 29, and an extension member 33.

The valve body 23 is slidably inserted into the liquid chamber 24 so as to be slidable up and down, and a first sealing member 34 for preventing the adhesive 3 from leaking to the outside is disposed at the upper end of the liquid chamber 24. A valve seat member 26 having a bowl-shaped valve seat is disposed at a lower end of the liquid chamber 24.

The valve seat member 26 has a communication hole 25 provided at the center thereof, and the communication hole 25 is opened and closed by abutting and separating the center of the upper surface of the valve seat member 26 from the front end of the valve body 23. The nozzle member 28 has a tubular member 27 and is configured to abut against a lower surface of the valve seat member 26. The upper portion of the tubular member 27 is open to communicate with the communication hole 25, and the lower opening communicates with the outside to constitute a spout. The valve seat member 26 and the nozzle member 28 are fixed by being screwed to the projections on the lower portion of the main body 60 in a state of being covered in the cap member 29.

The side of the liquid chamber 24 communicates with an opening penetrating the second flow path 32 of the body 60 and receives the supply of the adhesive 3. The other opening of the second flow path 32 communicates with an opening formed in the first flow path 31 of the extension member 33. The other opening of the first flow path 31 is in communication with the storage container 30. The compressed gas whose pressure is adjusted by the second pressure reducing valve 48 is supplied into the storage container 30 through the second pipe 50.

The drive unit 36 constitutes a substantially upper half of the main body 60 of the spouting device 8, and mainly includes a piston 37, an air chamber 38, and a spring chamber 39.

A valve body 23 penetrating the piston 37 is fixed to the piston 37. The valve body 23 also moves up and down by the piston 37 moving up and down in the cylindrical space provided inside the body 60. Piston 37 series will The cylindrical space provided inside the main body 60 is partitioned into a lower air chamber 38 and an upper air chamber 39.

A compressed gas for moving the piston 37 up and down is supplied into the air chamber 38. The air chamber 38 is hermetically sealed by the second sealing member 43. The compressed gas for operating the piston 37 is pressurized by the first pressure reducing valve 47, and supplied to the switching valve 44 through the first pipe 49. The switching valve 44 selectively switches the communication between the air port 45 and the first pipe 49 and the outside, and by switching the switching valve 44, the compressed air is supplied into the air chamber 38 through the air port 45, or the air is supplied. The compressed air in the chamber 38 is discharged toward the outside. The switching valve 44 controls the switching operation by the control device 51.

The spring chamber 39 houses a spring 40 for lowering the movement of the piston 37, and an adjusting screw 41 for adjusting the moving distance of the piston 37. A knob 42 for adjusting the retracted position of the piston is provided at the upper end of the adjusting screw 41.

The above-described supplementary ejection device 8 operates as follows.

The initial state (state before the operation) is set so as not to supply the compressed gas into the air chamber 38 (communicating with the outside), and the piston 37 is biased downward by the force of the spring 40, and the front end of the valve body 23 is abutted. In the state of the valve seat 26.

First, the switching valve 44 is switched. When the first pipe 49 and the air port 45 are communicated, the compressed gas after the pressure is adjusted by the first pressure reducing valve 47 flows into the air chamber 38, so that the piston 37 opposes the spring 40. The force rises and moves, and the front end of the valve body 23 is separated from the valve seat 26. At this time, since the compressed gas after the pressure is adjusted by the second pressure reducing valve 48 is supplied into the storage container 30, the adhesive 3 is pressurized, and thus the adhesive 3 passes through the first flow path 31 and the second flow path 32. The liquid chamber 24 flows in. Further, when the state in which the front end of the valve body 23 is separated from the valve seat 26 is maintained for a predetermined period of time, the adhesive 3 flows out through the communication hole 25 of the valve seat 26 and the tubular member 27 toward the outside. Moreover, after a predetermined time, the switching valve 44 is advanced. The line switching operation intercepts the communication between the first pipe 49 and the air port 45. When the compressed air in the air chamber 38 is discharged toward the atmosphere by connecting the air chamber 38 and the outside, the piston 37 is biased by the spring 40. The piston 37 is moved downward, so that the front end of the valve body 23 abuts against the valve seat 26. Thereby, the adhesive 3 which flows out from the tubular member 27 is blocked, and becomes the droplet 35, and is discharged.

The above is a set of action flow related to the ejection of the droplets once. In the case where a plurality of droplets are ejected, the above-described group of operations is repeatedly performed as many times as necessary. Further, the adjustment of the size of the liquid droplet 35 is performed by the operation of the switching valve 44 by the pressure of the compressed gas supplied into the storage container 30, and the time at which the front end of the valve body 22 is separated from the valve seat 36, and the piston 37. The movement distance of the valve body 23 and the like are adjusted.

The supplemental ejection device 8 is mounted on the corner coating device 54. In other words, in addition to the refilling device 8 for replenishment, the corner coating device 54 is applied (see FIG. 8), and the corner coating device 54 has a table on which the object to be coated is placed, and The XYZ direction moving mechanism that moves the refilling ejection device 8 and the object to be coated placed on the table.

<Adhesive Coating Line>

A device group (adhesive coating line) for carrying out the above-described adhesive application method of Figs. 1 to 4 will be described. The adhesive application line of the first embodiment described below is not a single device that performs all the steps, but a device group in which a plurality of individual devices performing the respective steps are functionally associated with each other. The so-called production line.

Fig. 8 is an explanatory view showing a group of apparatuses for carrying out the method of applying an adhesive according to the first embodiment. The device group shown in FIG. 8 is a device group for implementing the coating method of the first aspect shown in FIG. 1, and includes a surface coating device 53 having a planar ejection device 7; corner coating The device 54 includes a refilling device 8 for replenishment, and a bonding device 55 for attaching a pair The plate-like members (1, 2) and the transfer device 70 are connected to each of the devices (53, 54, 55), and the plate-like bodies (1, 2) are delivered between the devices.

The surface coating device 53 includes a planar ejection device 7 having a film coating nozzle 9 shown in FIG. 6, a table on which an object to be coated is placed, and an XYZ direction moving mechanism for causing a planar ejection device 7 moves relative to the coated object placed on the workbench. The corner coating device 54 includes: a refilling device 8 for replenishing; a table on which an object to be coated is placed; and an XYZ-direction moving mechanism that opposes the refilling device 8 and the object to be coated on the table. mobile. These XYZ-direction moving mechanisms can use, for example, a combination of an electric motor and a ball screw, a mechanism using a linear motor, and a mechanism for transmitting power by a belt or a chain.

As shown in Fig. 9, the bonding apparatus 55 includes an upper table 61 that adsorbs and fixes one of the plate-like bodies (for example, the plate-like body B2) to be bonded to the lower surface, and an upper driving device 63 that moves in the vertical direction. The upper table 61; the lower table 62, which adsorbs and fixes the other plate-like body to be attached to the upper surface (for example, the plate-like body A1); and the lower driving device 64 moves the lower table 62 linearly in the plane direction. (XY) and rotational movement (θ); a vacuum chamber 65 that surrounds the upper and lower stages (61, 62) and sets the inside to a vacuum state; and a loading and unloading port 66 that will be fitted with a plate-like body (1) 2) Carrying in, and carrying out the laminated plate-like laminated body.

The bonding step by the bonding device 55 is as follows, for example.

First, the plate-like bodies (1, 2) to be bonded are carried in from the loading/unloading port, and are respectively adsorbed and fixed to the upper table 61 and the lower table 62. Next, on the lower stage 62, on the one hand, the linear movement (XY) and the rotational movement (θ) in the plane direction are performed to adjust the position, and on the other hand, the upper table 61 is lowered to fix the plate fixed to the upper table 61. The body B2 is in contact with the plate-like body A1 adsorbed and fixed to the lower table 62 via the adhesive 3. Here, there is a case where the upper table 61 is further lowered as needed, and a pressing force is applied. However, as long as the adhesive 3 can be applied to a predetermined thickness, in many cases, only the plate body B2 can be used only. Heavy, and almost no pressing force is applied. After the contact with the adhesive 3, if the adsorption and fixation of the upper table 61 is released, the bonding work is completed.

In addition, in order to prevent bubbles or the like from being mixed into the adhesive 3, the loading and unloading port 66 is closed after the loading of the plate-like body (1, 2), and the vacuum chamber 65 is placed in a vacuum chamber or the like (not shown). It is preferable to set it to a vacuum state.

The laminated plate-like laminated body is carried out from the loading/unloading port 66 and transported to the next step.

The conveying device 70 that connects the respective devices (53, 54, 55) can be used for a common conveying device which is common in the manufacturing steps of the liquid crystal panel. Fig. 10 (a) shows a configuration example of a transport device 70 that transports by a transport robot 71 having a robot 72 that has an adsorption mechanism, and Fig. 10 (b) shows a contact with the lower surface of the plate body (1, 2). A configuration example of the transport device 70 that transports a plurality of rollers 74 by rotation.

In the case of the transport device 70 that transports the transport robot shown in FIG. 10(a), the application devices (53, 54), the bonding device 55, and the like are disposed on both sides of the rail 73 on which the transport robot 71 moves, and the like. The plate-shaped body (1, 2) is carried in and out by the robot 72 provided in the transfer robot 71. The transport robot 71 can perform linear movement of the robot 72 in the horizontal plane, rotational movement of the robot 72 in the horizontal plane, and lifting movement of the robot 72 (perpendicular to the direction of the paper surface).

In the case of the conveyance device 70 that conveys by the rotation of the roller 74 shown in FIG. 10(b), the conveyance device 70 is disposed between the application devices (53, 54), the bonding device 55, and the like, and The plate-like body (1, 2) is conveyed in a substantially (unidirectional) one-way passage from the upstream side toward the downstream side. Therefore, each device (53, 54, 55) is arranged substantially in the order of the work steps.

On the other hand, an example of a procedure for applying the adhesive 3 to the plate-like body A1 will be described with reference to Fig. 8 . The plate-like body A1 is, for example, a liquid crystal module having a screen size of 4 吋 (about 60 mm × about 90 mm) to 18 吋 (about 240 mm × about 360 mm). Also, the painting of the liquid crystal module The surface size is not limited to the size of the embodiment, and the present embodiment can also be applied to a liquid crystal module having a larger screen size.

The plate-shaped body A1 is first carried into the surface coating device 53 by the transfer device 70. In the surface coating device 53, on the one hand, the surface ejection device 7 is moved relative to the table, and the adhesive 3 is applied in a planar shape (Fig. 8(a)). The adhesive 3 is, for example, an ultraviolet curable adhesive having a refractive index substantially the same as that of glass. The plate-like body A1 to which the adhesive 3 is applied in a plane is carried out by the transfer device 70 and carried into the corner coating device 54 by the transfer device 70. In the corner coating device 54, on the one hand, the refilling device 8 is moved relative to the table, and the adhesive 3 is applied to the four corners of the plate-like body A1 (Fig. 8(b)). In Example 1, the recoating was performed by forming the dots at the corners. The diameter of the formed adhesive is, for example, about 1 mm. The plate-like body A1 to which the adhesive 3 is applied to the four corners is carried out from the corner coating device 54, and then carried into the bonding device 55 by the conveying device 70. Further, the plate-like body B2 which is a bonding target which has undergone other steps is carried into the bonding device 55 by the conveying device 70. In the bonding apparatus 55, the plate-like body A1 and the plate-shaped body B2 which apply|coated the adhesive agent 3 are bonded together (FIG. 8 (c)). The plate-like laminated body after bonding is carried out by the conveying device 70 toward the next step (adhesive curing or the like).

The above is the operation of one step performed by the adhesive application line of the first embodiment.

Further, the adhesive 3 is not limited to the exemplified ones, and for example, a range of 2,000 cps to 200,000 cps may be used.

Further, the plate-like body B2 carried in the bonding device 55 may be carried in a state of being reversed, or the inverting device 56 may be provided in the bonding device 55 to be inverted in the bonding device 55. Further, as described in the description of Fig. 1, the sheet-like body A1 and the sheet-like body B2 may be exchanged with each other, and then the adhesive 3 may be applied to the sheet-like body B2.

After the plate-like body A1 and the plate-shaped body B2 were bonded together, it was confirmed by visual observation that the adhesive agent was scattered to the vicinity of the poles of the four corners of the plate-like body A1. Further, it was confirmed that the application of the adhesive 3 was carried out in a good state in which no positional deviation and air bubbles were mixed. Further, the coating state can be inspected by measuring the film thickness of the adhesive 3 by a film thickness measuring device.

According to the adhesive application line of the first embodiment described above, since the corner coating device 54 for applying the adhesive to the four corners of the plate-like body is provided, the adhesive 3 can be applied to the surface. In the vicinity of the corner portion where the round corner is left, a coating method for applying the adhesive 3 is applied, and the adhesive 3 can be reliably filled to the corner portion of the display region 4 after bonding. Therefore, the plate-like bodies can be firmly fixed to each other, and deformation and breakage can be prevented. In the case where the plate-shaped body is a liquid crystal module, a high-quality liquid crystal module with no color unevenness can be provided.

[Embodiment 2]

Fig. 11 is an explanatory view showing a group of apparatuses for carrying out the adhesive application method of the second embodiment. The apparatus group (adhesive coating line) of the second embodiment is provided in the apparatus group of the first embodiment, and includes a surface and corner coating device 57 instead of the surface coating device 53 and the corner coating device 54. . That is, the device group of the second embodiment is provided with a surface and corner coating device 57, a bonding device 55 for bonding a pair of plate-like bodies (1, 2), and a device for contacting these ( 57, 55) The point at which the conveying device 70 of the plate-like body (1, 2) is delivered between the devices is different.

The surface and corner coating device 57 includes the same surface ejection device 7 as in the first embodiment, the same supplementary ejection device 8 as in the first embodiment, a table on which the object to be coated is placed, and an XYZ direction moving mechanism. The surface ejection device 7 and the refilling ejection device 8 are moved relative to the object to be coated placed on the table, and the surface and corner coating device 57 can be coated and recoated in one device. cloth. The planar ejection device 7 is provided in the XYZ direction moving mechanism, and the two supplementary ejection devices 8 are required to be applied to the four corners of the plate-shaped body. The positional relationship is fixed to the planar ejection device 7. By setting the distance between the refilling ejection devices 8 in advance to be the same as the interval between the refilled adhesives 3, the movement can be completed in one direction, and the coating time can be shortened.

In the same manner as in the first embodiment, the conveying device 70 can be used for an ordinary conveying device which is common in the liquid crystal panel manufacturing step. Fig. 12 (a) shows a configuration example of a transport device 70 that transports by a transport robot 71 having a robot 72 that has an adsorption mechanism, and Fig. 12 (b) shows a contact with the lower surface of the plate body (1, 2). A configuration example of the conveying device 70 that performs the rotation of the plurality of rollers 74.

On the other hand, an example of a procedure for applying the adhesive 3 to the plate-like body A1 will be described with reference to Fig. 11 .

The plate-like body A1 is first carried into the surface and the corner coating device 57 by the transfer device 70. In the surface and corner coating device 57, on the one hand, the planar ejection device 7 is moved relative to the table, and the adhesive 3 is applied in a planar manner. Next, on the one hand, the refilling device 8 is moved relative to the table, and the adhesive 3 is applied to the four corners (Fig. 11(a)). Here, the coating is performed simultaneously at two points by the two additional ejection devices 8. Then, the plate-shaped body A1 is carried out from the surface and corner coating device 57 by the conveying device 70, and carried into the bonding device 55. Further, the plate-like body B2 which is a bonding target which has undergone other steps is carried into the bonding device 55 by the conveying device 70. In the bonding apparatus 55, the plate-like body A1 to which the adhesive 3 is applied is bonded to the plate-shaped body B2 (FIG. 11 (b)). The plate-like laminated body after bonding is carried out by the conveying device 70 toward the next step (adhesive curing or the like).

The above is the operation of one step performed by the adhesive application line of Example 2.

Further, similarly to the first aspect, the plate-like body B2 carried into the bonding apparatus 55 can be carried in a state of being inverted, or a turning device can be provided in the bonding device 55. 56, inverting in the bonding device 55. Further, as described in the description of Fig. 1, the sheet-like body A1 and the sheet-like body B2 may be exchanged with each other, and then the adhesive 3 may be applied to the sheet-like body B2.

In the second embodiment described above, in comparison with the first embodiment, the surface coating device 53 and the corner coating device 54 are replaced by the surface and corner coating device 57, and the connection of the conveying device 70 is also reduced by one place. Can save space.

[Example 3]

Fig. 13 is an explanatory view showing a group of apparatuses for carrying out the method of applying the adhesive of the third embodiment. The apparatus group (adhesive application line) of the third embodiment is a device group that performs the coating method of the second aspect shown in FIG. 3, and includes a surface coating device 53 that has a surface discharge Device 7; corner coating device 54 including refilling device 8; bonding device 55 for bonding a pair of plate-like bodies (1, 2); and inverting device 56. The device group of the present embodiment is different from the device group of the first embodiment in that the point of the inverting device 56 and the order of the surface coating device 53 and the corner coating device 54 are set. Since the configurations of the face coating device 53, the corner coating device 54, and the bonding device 55 are the same as those of the first embodiment, the description thereof is omitted.

Similarly to the first and second embodiments, the conveying device 70 can be used for a general conveying device which is common in the liquid crystal panel manufacturing step. Fig. 14 (a) shows an example of the configuration of the transport device 70 that transports by the transport robot 71 having the robot 72 that houses the suction mechanism, and Fig. 14 (b) shows the lower surface of the plate (1, 2) by contact. A configuration example of the conveying device 70 that performs the rotation of the plurality of rollers 74.

On the other hand, an example of a procedure for applying the adhesive 3 to the plate-like body A1 will be described with reference to Fig. 13 .

The plate-shaped body A1 is first carried into the surface coating device 53 by the transfer device 70. In the surface coating device 53, on the one hand, the planar ejection device 7 is relatively moved with the table, and on the other hand, The adhesive 3 is applied in a planar shape (Fig. 13 (a)). The plate-like body A1 in which the adhesive 3 is applied in a plane is carried out by the transfer device 70 by the transfer device 70, and is carried into the bonding device 55. On the other hand, the plate-shaped body B2 which has undergone other steps is carried into the corner coating device 54 by the conveying device 70. In the corner coating device 54, on the one hand, the refilling device 8 is moved relative to the table, and the adhesive 3 is applied in a dot form (Fig. 13 (b1)). The plate-shaped body B2 to which the adhesive 3 is applied is replenished from the corner coating device 54 by the transfer device 70, and is carried into the reversing device 56. In the inverting device 56, the plate-like body B2 is turned over so that the surface on which the adhesive 3 is applied is faced downward (Fig. 13 (b2)). At this time, the plate-shaped body B2 may be inverted after the semi-hardening treatment, so that the shape of the applied adhesive 3 is not deformed. Next, the inverted plate-shaped body B2 is carried out from the reversing device 56 by the conveying device 70, and carried into the bonding device 55. In the bonding apparatus 55, the plate-like body A1 is carried in, and the plate-shaped body A1 and the plate-shaped body B2 are bonded together (FIG. 13 (c)). The laminated plate-like laminated system is carried out by the transfer device 70 in the next step (adhesive curing, etc.).

The above is the operation of one step performed by the adhesive application line of Example 3.

In the third embodiment, the coating step can be processed in parallel by surface coating and recoating of the respective plate-shaped members, so that the working time can be shortened.

[Example 4]

Fig. 15 is an explanatory view showing a group of apparatuses for carrying out the method of applying the adhesive of the fourth embodiment. The device group of Example 4 (adhesive coating line) is a device group for carrying out the coating method of the third aspect shown in FIG. 4, and the surface coating device 53 and the corner portion of Example 3 are used. The arrangement of the coating devices 54 is interchanged. That is, the device group of the fourth embodiment includes a surface coating device 53 including a planar ejection device 7, a corner coating device 54 including a refilling ejection device 8, and a bonding device 55 for attaching a pair of plate bodies (1 2); and turning device 56. Since the configurations of the face coating device 53, the corner coating device 54, and the bonding device 55 are the same as those of the first embodiment, the description thereof is omitted.

Similarly to the first to third embodiments, the conveying device 70 can be used for a general conveying device which is common in the liquid crystal panel manufacturing step. Fig. 16 (a) shows a configuration example of the transport device 70 that transports by the transport robot 71 having the robot 72 that houses the suction mechanism, and Fig. 16 (b) shows the lower surface of the plate body (1, 2) by contact. A configuration example of the conveying device 70 that performs the rotation of the plurality of rollers 74.

On the other hand, an example of a procedure for applying the adhesive 3 to the plate-like body A1 will be described with reference to Fig. 15 .

The plate-shaped body A1 is first carried into the corner coating device 54 by the transfer device 70. In the corner coating device 54, on the one hand, the refilling device 8 is moved relative to the table, and the adhesive 3 is applied to the corner portion (Fig. 15(a)). The plate-like body A1 to which the adhesive 3 is applied in four corners is carried out from the corner coating device 54 by the transfer device 70, and carried into the bonding device 55. On the other hand, the plate-shaped body B2 which has undergone other steps is carried into the surface coating device 53 by the conveying device 70. In the surface coating device 53, on the one hand, the planar ejection device 7 is moved relative to the table, and on the other hand, the adhesive 3 is applied in a planar shape (Fig. 15 (b1)). The plate-shaped body B2 to which the adhesive 3 is applied in a plane is carried out by the surface application device 53 by the transfer device 70, and is carried into the inverting device 56. In the inverting device 56, the plate-like body B2 is turned over so that the surface on which the adhesive 3 is applied is faced downward (Fig. 15 (b2)). At this time, the plate-shaped body B2 may be inverted after the semi-hardening treatment, so that the shape of the applied adhesive 3 is not deformed. Next, the inverted plate-shaped body B2 is carried out from the reversing device 56 by the conveying device 70, and carried into the bonding device 55. In the bonding apparatus 55, the plate-like body A1 is carried in, and the plate-shaped body A1 and the plate-shaped body B2 are bonded together (FIG. 15 (c)). The plate-like laminated body after bonding is carried out by the conveying device 70 toward the next step (adhesive curing or the like).

The above is the operation of one step performed by the adhesive application line of Example 4.

In the fourth embodiment, in the same manner as in the third embodiment, the coating step can be processed in parallel by the planar coating and the supplementary coating of the respective plate-like members, so that the working time can be shortened.

[Example 5]

Example 5 relates to a coating and laminating apparatus which can perform a coating and bonding step in one apparatus.

As shown in Fig. 17, the coating and bonding apparatus 80 of the fifth embodiment mainly includes two stages (81, 82) on which plate-like bodies (1, 2) are placed, and a surface-shaped ejection device 7; Agent hardening device 88; upper table and upper table driving device (all not shown); inverting device 89; frame 90; and control device (not shown).

The frame 90 is divided into a planar coating portion 83 in which the planar ejection device 7 is disposed, a supplementary coating portion 84 in which the refilling device 8 is disposed, a dummy curing portion 85 in which the adhesive curing device 88 is disposed, and is disposed. A bonding portion 86 of the upper table and the upper table driving device (none of which are shown) and an inverting portion 87 in which the inverting device 89 is disposed. A surface discharge device 7 (surface coating device), a refilling ejection device 8 (corner coating device), an upper table, and an upper table driving device (corresponding to a bonding device) are mounted on the frame 90. Device 89 and transport device (81, 82, 91, 92). The frame 90 can also be constructed as a plurality of components.

The control device (not shown) includes a memory device that stores a control program that controls the operation of each device, and an arithmetic device that executes a control program that is read from the memory device.

The planar coated portion 83 and the pseudo-cured portion 85 are connected by a pair of slide rails A91, and the table A81 is freely movable between the planar coated portion 83 and the pseudo-cured portion 85. Similarly, the supplementary coating portion 84 and the bonding portion 86 are connected by a pair of slide rails B92, and work. The stage B82 is freely movable between the refill coating portion 84 and the bonding portion 86. Further, the plate-like system which has been subjected to the pseudo-hardening of the pseudo-hardened portion 85 is conveyed to the bonding portion 86 by the inverting device 89. As described above, in the present embodiment, the conveying device is constituted by a slider and an inverting device 89 which are mounted on the slide rails A91 and B92 and the tables A81 and B82.

Similarly to the first to fourth embodiments, the planar ejection device 7 is configured to be movable relative to the table A81.

The refilling device 8 is configured to be movable relative to the table B82 in the same manner as in the first to fourth embodiments.

The adhesive curing device 88 has an ultraviolet ray irradiation portion and is configured to move the ultraviolet ray irradiation portion relative to the table.

The turning device 89 is provided with: a robot having an adsorption mechanism; a straight-through device capable of linear movement of the robot; an up-and-down turning device 93 capable of performing a turning operation by a robot; and a horizontal rotating device 94 capable of performing a robot The horizontal rotation movement; and the lifting device, which can perform the lifting movement of the robot. The inverting device 89 can hold the plate-like body by the suction mechanism, and the plate-shaped body can be rotated by the rotation device provided at the end of the robot.

The upper stage, not shown, has an adsorption mechanism that adsorbs and fixes the plate-like body. The upper table drive unit, which is not shown, moves the upper table up and down. In this embodiment, the bonding apparatus is composed of an upper table and an upper table driving device.

The coating and bonding apparatus 80 of this embodiment operates as follows.

When a plate-shaped body (hereinafter referred to as a plate-like body 1) is placed on the table A81, the control device moves the table A81 to the planar coating portion 83, and the adhesive agent 3 is planarized by the planar ejection device 7. It is applied to the plate body 1. When the planar coating is completed, the control device moves the table A81 on which the plate-like body 1 is placed to the dummy hardened portion 85, and performs pseudo hardening of the adhesive 3 applied by the adhesive hardening device 88 (semi-hardening) ). Then, the control device will turn over the device 89 The plate-like body 1 which has been subjected to the pseudo-hardening is taken out from the dummy-cured portion 85, and is turned over, and then carried into the bonding portion 86. The plate-like body 1 carried into the bonding portion 86 is adsorbed and fixed to the upper table.

When another plate-shaped body (hereinafter referred to as a plate-like body 2) is placed on the table B82, the control device moves the table B82 to the replenishing coating portion 84, and the adhesive 3 is recoated by the refilling device 8. Spread on the plate body 2. When the refill coating is completed, the control device moves the table B82 on which the plate-like body 2 is placed to the bonding portion 86.

When the plate-like body 1 and the plate-like body 2 are carried into the bonding portion 86, the control device lowers the upper table by the upper table driving device, and bonds the two plate-like members. The plate-like laminated body that has been bonded is carried out toward the next step.

According to the coating and bonding apparatus 80 of the present embodiment described above, the self-application to the bonding operation can be performed in one apparatus, so that the installation space and the installation cost of the conveying apparatus can be reduced. In addition, it is possible to prevent malfunctions during transportation (for example, dropping and mistaking).

1‧‧‧Plate A

2‧‧‧Plate B

3‧‧‧Adhesive

5‧‧‧ Face coating direction

6‧‧‧Adding coating direction

7‧‧‧Faceous ejection device

8‧‧‧Supply spouting device

Claims (15)

A method for producing a plate-like laminated body, which is a method for producing a plate-like laminated body by laminating one of substantially similar shapes to a plate-like body by an adhesive, the method having a surface coating step, The first plate-shaped body is scanned with a nozzle having a square-shaped ejection groove so as not to overflow from the outer edges of the first and second plate-shaped bodies, thereby applying the adhesive into a square shape. a supplementary coating step on the first or second plate-like body, the four corners of the first and second plate-shaped bodies are not overflowed from the outer edges of the first and second plate-shaped bodies Adhesive agent is applied in the vicinity of the surface coating step in which the adhesive is not applied or is applied to the portion facing the portion; and a bonding step which is subjected to the surface coating step and the supplementary coating The first and second plate bodies of the step are attached. The method for producing a plate-like laminated body according to the first aspect of the invention, wherein in the supplementary coating step, the adhesive is applied by sandwiching a shape of a diagonal line into a symmetrical coating pattern. The diagonal line includes the apex of the corner portion to be coated. The method for producing a plate-like laminated body according to the second aspect of the invention, wherein the coating pattern of the coating pattern step includes a pattern composed of dots and/or lines. The method for producing a plate-like laminate according to the second aspect of the invention, wherein the coating pattern of the supplementary coating step includes an L-shaped pattern. The method for producing a plate-like laminated body according to claim 1 or 2, wherein in the supplementary coating step, the adhesive is applied to the first plate-shaped body. A method for producing a plate-like laminated body according to claim 1 or 2, In the above supplementary coating step, an adhesive is applied to the second plate-shaped body. The method for producing a plate-like laminate according to claim 6, wherein the planar coating step and the supplementary coating step are carried out in parallel. The method for producing a plate-like laminated body according to any one of claims 1 to 4, wherein in the planar coating step, the nozzle is orthogonal to the width direction of the first plate-shaped body. In the direction of scanning, an adhesive is applied, and the nozzle has a jetting groove portion that can apply a required amount of the adhesive in a single direction in the width direction of the first plate-shaped body. The method for producing a plate-like laminated body according to any one of claims 1 to 4, wherein the plate-like laminated body obtained by laminating the first and second plate-like bodies is a component of a liquid crystal display. . A manufacturing apparatus for a plate-like laminated body, which is obtained by laminating one of substantially similar shapes to a plate-like body by an adhesive to produce a plate-shaped laminated body, and is characterized by comprising: a surface coating device; Applying an adhesive to a square shape on a plate-like body; a corner coating device that applies an adhesive to each of four corners of the plate-like body; and a bonding device that will be coated with an adhesive And the second plate-shaped body is attached; the conveying device is configured to connect the surface coating device, the corner coating device and the bonding device; and the control device is provided with: (a) top coating The cloth device is mounted on the first plate-shaped body, and the nozzle having the square-shaped ejection groove portion is scanned so as not to overflow from the outer edges of the first and second plate-shaped members, thereby applying the adhesive to the square shape. a means of shape; (b) causing the corner coating device to be on the first or second plate-like body from the outer edges of the first and second plate-like bodies In a manner that does not overflow, the adhesive is applied to the vicinity of the four corners of the first and second plate-shaped members, and the portion to which the adhesive is not applied or the portion facing the portion is coated and adhered. And (c) a means for applying a bonding agent to the plate-like body by applying one of the adhesives by the corner coating device. The apparatus for manufacturing a plate-like laminated body according to claim 10, wherein the surface coating apparatus includes: a surface discharge device; a table on which a coated object is placed; and an XYZ direction moving mechanism; The planar ejection device is moved relative to the object to be coated placed on the table, and the corner coating device is mounted on the XYZ-direction moving mechanism of the surface coating device by the refilling device. Composition. The apparatus for manufacturing a plate-like laminated body according to claim 11, wherein the planar ejection device includes a nozzle having a required amount in a width direction of the first plate-shaped body. The groove for ejection of the length to which the adhesive is applied. The apparatus for manufacturing a plate-like laminated body according to claim 10 or 11, further comprising an inverting device for vertically turning the plate-shaped body upside down. The apparatus for manufacturing a plate-like laminated body according to claim 13, wherein the surface coating device, the corner coating device, the bonding device, the inverting device, and the conveying device are mounted on the same frame. The apparatus for manufacturing a plate-like laminated body according to claim 10, 11 or 12, wherein the plate-shaped laminated body obtained by laminating the first and second plate-shaped bodies is a component of a liquid crystal display.