TW201536561A - Manufacturing apparatus for member of display device and manufacturing method for member of display device - Google Patents

Abstract

The invention prevents production of voids between an adhesive layer and a work piece. A manufacturing apparatus 100 for a member of a display device sticks a pair of work pieces including a liquid crystal panel S1 and a cover panel S2 which form the display device through an adhesive R. The manufacturing apparatus 100 for the member of the display device includes: an adhesive coating device 1, coating the adhesive R on the liquid crystal panel S1 to form an adhesive layer R1; an adhesive layer inducement section forming device 6, forming an adhesive layer inducement section on the liquid crystal panel S1; and a sticking device 2, enabling the adhesive layer R1 formed on the liquid crystal panel S1 to contact the cover panel S2, thereby sticking the pair of work pieces. The adhesive layer inducement section RG induces at least one part of a margin of the adhesive layer R1 in the sticking device 2 to a contact position C for contacting the cover panel S2.

Description

Manufacturing device for display device and system for display device Method

The present invention relates to a manufacturing apparatus for a member for a display device and a method of manufacturing a member for a display device.

In general, a flat display device (flat panel display) typified by a liquid crystal display or an electroluminescence (EL) display is a display panel and is used as needed. A touch panel or a protective panel (cover panel) for protecting the surface, a backlight, a light guide plate, and the like are assembled in a housing of the flat panel display.

Workpieces such as the display panel, the touch panel, the cover panel, the backlight, and the light guide plate (hereinafter simply referred to as work) are stacked and assembled in the casing of the flat panel display. Each of the workpieces is assembled individually or in a pre-laminated state. For example, it is sometimes used as a composite panel in which a touch panel is laminated on a protective cover. Made into parts.

Moreover, for the display panel, a display panel with a touch panel function is sometimes used. As described above, various types of workpieces are used. Hereinafter, a plurality of workpieces constituting the display device are stacked as a member for a display device.

When a gap is provided between the respective workpieces stacked in the member for the display device, the visibility of the display surface of the display is lowered due to the reflection of the external light. In order to cope with this phenomenon, there is an operation of laminating the workpieces by laminating the workpieces via the adhesive layer, thereby filling the gaps between the workpieces. There are various methods for forming the adhesive layer, and as an example, there is a method of forming an adhesive layer by applying a binder to the surface of either or both of the workpieces.

For example, the rectangular liquid crystal panel S1 shown in FIGS. 19(A) and 19(B) and the cover panel S2 having the printing frame P formed on the outer circumference shown in FIGS. 19(C) and 19(D) are provided. In the case where the members for the display device are bonded together, as an example, the adhesive is applied to the liquid crystal panel S1 side. At the time of coating, as an example, a slit type nozzle is used. By applying an adhesive of an ultraviolet (UV) curable resin to a coated surface of a workpiece from a slit nozzle, the nozzle is moved relative to the workpiece to apply a binder to the entire coated surface of the workpiece to form a rectangular shape. Adhesive layer R1.

In general, the display area of the liquid crystal panel S1 and the inner frame F surrounded by the printing frame P of the cover panel S2 have similar shapes and are substantially the same size. Therefore, applying the adhesive on the entire surface of the liquid crystal panel S1 is equivalent to the fact that the adhesive layer R1 formed on the liquid crystal panel S1 becomes the inner frame F surrounded by the printing frame P of the cover panel S2. They are similar in shape and roughly the same size. That is, when the inner frame F is a rectangle, the adhesive layer R1 is also formed in a rectangular shape having substantially the same size. Thereby, when the two panels are bonded together, the outer edge of the adhesive layer R1 is superposed on the frame line of the inner frame F of the cover panel S2, so that the line of the adhesive layer R1 cannot be seen, and the appearance of the product is improved.

[Prior Art Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open Publication No. 2012-73533

However, the adhesive ejected from the nozzle becomes hemispherical due to surface tension after being applied to the workpiece. Therefore, even if the adhesive is applied in a rectangular shape by the slit type nozzle, the edge of the adhesive layer R1 is not at right angles in the cross-sectional view, but is formed as shown in FIGS. 19(A) and 19(B). The surface state with a curved surface on the top. In the edge portion, particularly in the four corner portions, the surface tension exerts a large effect, so that it has a spherical shape of 1/4 and a state in which a curved curved surface larger than the other portions is formed.

When the liquid crystal panel S1 and the cover panel S2 are bonded in this state, as shown in FIGS. 20(A) and 20(B), there is a possibility that the edge of the adhesive layer R1 and the inner frame F of the cover panel S2 are in the frame. A gap is created between the lines. Further, the shape of the curved curved surface formed at the edge portion may be controlled in advance to control the coating shape. However, since the four corner portions of the edge portion are formed with a curved curved surface larger than the straight portion, they may sometimes be Box F A gap that can be seen is formed between the four corners.

In recent years, it has been required to enlarge the display area of the display panel, and the width of the printing frame is required to be as narrow as possible. If such strict requirements exist, even if there is a slight gap, it may cause defects in the appearance of the product. Further, when the display panel is bonded to a touch panel or the like, if there is a portion where the adhesive is not filled at the edge of the bonding surface regardless of the printing frame, the line of the edge of the bonding layer will exist. Display area, resulting in poor appearance. In any case, it is easy to cause peeling or the like from the gap portion, thereby affecting the life of the product.

An object of the present invention is to provide a manufacturing apparatus and a manufacturing method for a member for a display device, which are capable of inducing an adhesive layer between edges of an adhesive layer and a workpiece without generating a gap in order to solve the above problems. Therefore, it is possible to manufacture a member for a high-quality display device, and the yield of the product can be improved.

In order to achieve the object, the present invention provides a manufacturing apparatus for a member for a display device, wherein a pair of workpieces constituting the display device are attached via an adhesive, and the manufacturing device for the member for a display device includes: a coating device The adhesive layer is applied to at least one of the pair of workpieces to form an adhesive layer; the adhesive layer inducing portion forming device forms an adhesive layer inducing portion on at least one of the pair of workpieces; and the bonding a device for contacting the adhesive layer formed on one of the workpieces to another workpiece to conform the pair of workpieces, the adhesive layer inducing portion being formed in one of the workpieces in the bonding device At least a portion of the edge of the upper adhesive layer is induced to a contact position with another workpiece.

Moreover, the present invention provides a method of manufacturing a member for a display device in which a pair of workpieces constituting a display device are bonded via an adhesive, and a method of manufacturing the member for a display device includes a coating process on the pair of workpieces Coating the adhesive to form an adhesive layer on at least one of them; forming an adhesion layer inducing portion forming process to form an adhesive layer inducing portion on at least one of the pair of workpieces; and bonding processing to form The adhesive layer on one of the workpieces contacts the other workpiece to fit the pair of workpieces, and the adhesive layer inducing portion will form the adhesive layer on one of the workpieces in the bonding process At least a portion of the rim is induced to a position of contact with another workpiece.

As described above, according to the present invention, the adhesive layer inducing portion is formed and the edge portion of the adhesive layer is induced to a position in contact with the facing workpiece, thereby preventing a gap from being formed between the adhesive layer and the workpiece, and preventing the portion from being bonded from the adhesive layer. The damage caused by the peeling occurred can produce a member for a display device having a good appearance, and the yield of the product can also be improved.

1‧‧‧Binder coating device

2‧‧‧Fitting device

3‧‧‧Curing device

4‧‧‧Transporting device

5‧‧‧ camera

6‧‧‧Adhesive layer induction forming device

7‧‧‧Control device

11‧‧‧Support unit

11a‧‧‧ stage

11b‧‧‧ drive mechanism

12‧‧‧ Coating unit

13‧‧‧Irradiation unit

14‧‧‧ Dispenser

21‧‧‧ chamber

22‧‧‧ Lower side panel

23‧‧‧Upper side panel

25‧‧‧ drive mechanism

31‧‧‧ mounting table

33‧‧‧Irradiation unit

40‧‧‧Conveyor

41‧‧‧ Keeping parts

41a, 41b‧‧‧ arms

42‧‧‧ Track

51a‧‧‧ camera body

51b‧‧‧Lens tube

61, 62‧‧‧ dispenser

100‧‧‧Manufacturing device for display device

200‧‧‧Loader

300‧‧‧ Unloader

C‧‧‧Contact location

F‧‧‧ inside frame

L‧‧‧Components for display devices

P‧‧‧Printing frame

R‧‧‧Binder

R1‧‧‧ adhesive layer

R10‧‧‧ Imprint adhesive

RG‧‧‧Adhesive layer induction department

S1‧‧‧ LCD panel

S2‧‧‧ Cover panel

S10‧‧‧ laminated body

S11, S12‧‧‧ panel

T, T10‧‧‧ storage tank

UV‧‧‧UV

1 is a schematic configuration diagram of a manufacturing apparatus of a member for a display device according to a first embodiment of the present invention.

2(A) is a schematic configuration diagram of a binder coating device, and FIG. 2(B) is a schematic view showing application of a binder.

3(A) and 3(B) are views showing a schematic configuration and an operation of the bonding apparatus.

4(A) and 4(B) are diagrams showing a schematic configuration and an operation of the curing device.

Fig. 5 is a schematic configuration diagram of a conveying device.

FIG. 6 is a schematic configuration diagram of an imaging device and an adhesion layer inducing portion forming device viewed from a transverse direction of the conveying device.

7(A), 7(B), 7(C), and 7(D) are views showing a binder coating process.

8(A) and 8(B) are diagrams showing imaging processing and position detection processing.

9(A) and 9(B) are views showing a process of forming an adhesion layer inducing portion.

10(A) and 10(B) are views showing a bonding process, and FIG. 10(A) is a side cross-sectional view of the liquid crystal panel and the cover panel at the time of bonding, and FIG. 10(B) is a view from the cover panel. The upper surface side is a view of the laminated body after bonding.

FIG. 11 is a schematic configuration diagram of an adhesive application device in a manufacturing apparatus for a member for a display device according to a second embodiment of the present invention.

FIG. 12(A) is a view showing the configuration and operation of the adhesion layer inducing portion forming apparatus according to the second embodiment of the present invention, and FIG. 12(B) is a side view of the liquid crystal panel in which the adhesion layer inducing portion is formed, and FIG. C) is an upper surface view of a liquid crystal panel in which an adhesion layer inducing portion is formed.

FIG. 13(A) is a side view showing a liquid crystal panel in which the adhesive layer is induced by the adhesion layer inducing portion, and FIG. 13(B) is a side view showing the liquid crystal panel in a state in which the adhesive layer is induced to the edge of the liquid crystal panel. FIG. 13(C) is a side view showing a state in which a cover panel is bonded to a liquid crystal panel.

FIG. 14(A) is a partial perspective view showing a liquid crystal panel in which the adhesive layer is induced by the adhesion layer inducing portion, and FIG. 14(B) is a partial perspective view showing the liquid crystal panel in a state in which the adhesive layer is induced to the edge of the liquid crystal panel. .

Fig. 15 is a schematic configuration diagram of a conveying device according to another embodiment of the present invention.

16(A) and 16(B) are views showing an adhesive layer inducing portion forming process according to another embodiment of the present invention.

Fig. 17 is a view showing a process of forming an adhesion layer inducing portion according to another embodiment of the present invention.

FIG. 18 is a view showing a process of forming an adhesion layer inducing portion according to another embodiment of the present invention.

19(A) is a top view of a liquid crystal panel in which an adhesive layer is formed, FIG. 19(B) is a side view of a liquid crystal panel in which an adhesive layer is formed, and FIG. 19(C) is a bottom view of the cover panel, and FIG. D) is a side view of the cover panel.

20(A) and 20(B) are views showing a conventional example of bonding of a liquid crystal panel and a cover panel, and FIG. 20(A) is a side cross-sectional view of the liquid crystal panel and the cover panel at the time of bonding, and FIG. (B) is a view of the laminated body after bonding from the upper surface side of the cover panel.

[First Embodiment]

Embodiments of the present invention (hereinafter referred to as embodiments) will be specifically described with reference to the drawings.

[structure]

First, the configuration of the present embodiment will be described with reference to Figs. 1 to 6 .

[workpiece]

This device is a manufacturing device for a member for a display device that manufactures a laminate of members for a display device. The member for a display device includes a member having a display function as a member in which a display panel and a cover panel are laminated, and includes a member in which a cover panel and a touch panel are laminated, and the display function is not provided only in the member. member. In other words, the workpiece to be a laminated object includes various types of workpieces such as a display panel, a touch panel, a cover panel, a backlight, and a light guide plate. However, in the present embodiment, a description will be given of a display as a first workpiece. The panel and the cover panel as the second workpiece are bonded together via an adhesive to constitute a member for a display device.

The display panel has various types such as a liquid crystal panel or an organic EL panel, and has various shapes. Here, as an example, an example of using a rectangular liquid crystal panel S1 as shown in FIGS. 19(A) and 19(B) is used. Be explained. The adhesive may be applied to either of the liquid crystal panel S1 and the cover panel S2, or may be applied to both. In the present embodiment, as shown in FIG. 19(B), an example in which a binder is applied to a surface of a liquid crystal panel S1 with a predetermined thickness to form an adhesive layer R1 will be described. The adhesive is applied so as to spread over the entire surface of the liquid crystal panel S1. However, in order to prevent the adhesive from being extruded between the two panels at the time of bonding, the adhesive is applied so as to slightly retain the outer edge of the liquid crystal panel S1. That is, the adhesive layer R1 has the same rectangular shape as the liquid crystal panel S1 and is slightly smaller than the liquid crystal panel S1.

Although there are various types or shapes of the cover panel, in the present embodiment, as shown in FIGS. 19(C) and 19(D), a rectangular cover having a larger shape than the liquid crystal panel S1 is used. Panel S2. A printing frame P having a predetermined width is formed on the bottom surface side of the cover panel S2 so as to be rimmed on the outer edge. That is, when viewed from the lower surface, the inner frame F surrounded by the printing frame P is formed on the cover panel S2. In the example of FIGS. 19(C) and 19(D), the inner frame F has a rectangular shape and the four corners have an arc shape. However, the present invention is not limited to the illustrated example, and may be a pentagon or a hexagon. The polygonal shape and the four corners can also be at right angles in a plan view. Further, as shown in Fig. 19(D), the four corners of the inner frame F are substantially at right angles in the cross-sectional view. The size of the inner frame F is slightly smaller than that of the liquid crystal panel S1. The adhesive layer R1 is applied in such a manner that the inner frame F has a similar shape and substantially the same size.

[Manufacturing device for member for display device]

In the present embodiment, the manufacturing device for the display device is manufactured by applying the adhesive to the liquid crystal panel S1 and bonding the liquid crystal panel S1 and the cover panel S2. As shown in FIG. 1 , the manufacturing apparatus 100 for a display device member includes a binder coating device 1 , a bonding device 2 , a curing device 3 , a conveying device 4 , and a control device 7 .

The liquid crystal panel S1 and the cover panel S2 are carried into the manufacturing apparatus 100 of the display device member by the loader 200, and are transported by the transport device 4. The adhesive application device 1, the bonding device 2, and the curing device 3 are disposed along the conveying device 4. The liquid crystal panel S1 and the cover panel S2 are picked up from the transport device 4 by a pickup device (not shown), and are carried into and discharged from the respective devices via a carry-in port (not shown). The display device member L is manufactured through the steps in the respective devices, and is carried out from the manufacturing device 100 for the display device by the unloader 300. The structure and function of each device will be described in detail below.

[Binder Coating Device 1]

The adhesive application device 1 is a coating portion of the manufacturing device 100 for a member for a display device, and a binder R is applied to the surface of the workpiece to form an adhesive layer R1. In the present embodiment, an example in which the binder R is applied to the surface of the liquid crystal panel S1 as described above will be described. However, the coating may be applied to the cover panel S2 or may be applied to both panels.

As shown in FIG. 2(A), the adhesive application device 1 includes a support unit 11 that supports the liquid crystal panel S1 in a horizontally reciprocable manner, and a coating unit 12 that is disposed above the support unit 11, respectively.

The support unit 11 supports the liquid crystal panel S1 in the adhesive coating device 1 with the coated side facing up. The support unit 11 has a stage 11a and a drive mechanism 11b. The stage 11a is a flat plate-shaped table on which the liquid crystal panel S1 is placed. The drive mechanism 11b is a mechanism that reciprocates the stage 11a in the horizontal direction. As the drive mechanism 11b, for example, a ball screw that is rotated by a drive source is considered. However, any device may be used as long as it can reciprocate the liquid crystal panel S1 placed in the horizontal direction. The start, stop, and speed of the movement of the stage 11a in the drive mechanism 11b are controlled by the control device 7.

The coating unit 12 applies the adhesive R to the liquid crystal panel S1. The coating unit 12 is provided with a tank T for accommodating the adhesive R and a dispenser 14 . The reservoir T is connected to the dispenser 14 via a flow path of the adhesive R, that is, a pipe and a valve that adjusts the supply amount of the adhesive R. The dispenser 14 can be, for example, a slit coater equipped with a pump. The liquid crystal panel S1 is supplied with a slit of the adhesive R in a planar shape.

The slit is an opening which is parallel to the coated surface of the liquid crystal panel S1 and elongated in a direction orthogonal to the relative moving direction of the liquid crystal panel S1, the length of the slit in the longitudinal direction and the liquid crystal panel The width of S1 is equal or slightly shorter. The tip end portion of the dispenser 14 is formed with a nozzle (slit nozzle) provided with the slit at a position facing the liquid crystal panel S1 placed on the stage 11a.

By ejecting the adhesive from the nozzle, the stage 11a on which the liquid crystal panel S1 is placed is moved under the nozzle, and as shown in FIG. 2(B), the surface of the liquid crystal panel S1 is planar. The adhesive R is applied to form a rectangular-shaped adhesive layer R1. The term "substantially the entire surface" refers to the portion that retains the edge slightly. As described above, the size of the inner frame F of the cover panel S2 is slightly smaller than that of the liquid crystal panel S1. Therefore, by applying the adhesive layer R1 so as to slightly retain the edge of the liquid crystal panel S1, it is possible to form the adhesive layer R1 having a similar shape and substantially the same size as the inner frame F.

However, as shown in FIGS. 19(A) and 19(B), the edge of the adhesive layer R1 has a curved shape due to the action of the surface tension. In particular, since the surface tension of the four corners plays a large role, the curved curved surface becomes large and becomes a 1/4 sphere shape. The 1/4 ball shape means that the shape is curved whether it is viewed horizontally or in cross section. On the other hand, the four corners of the inner frame F of the cover panel S2 are substantially right angles in the cross-sectional view. At the time of bonding, the outer edge of the adhesive layer R1 applied to the liquid crystal panel S1 is superposed on the line of the inner frame F of the cover panel S2, that is, laminated so as to be in contact. However, a large curved curved surface is provided at the four corners of the adhesive layer R1. Therefore, as shown by the circled portion of FIG. 20(A), the four corners of the adhesive layer R1 do not reach when attached, and can be connected to the cover panel S2. The position C of the touch (hereinafter referred to as "contact position C"). Therefore, when it is bonded to the cover panel S2 directly in this state, as shown in FIG. 20(B), a gap is formed between the four corners of the adhesive layer R1 and the four corners of the inner frame F of the cover panel S2.

Since the adhesive R used in the adhesive application device 1 is subjected to a curing treatment in the curing device 3 to be described later, a resin which is cured by irradiation with energy from the outside is used. For example, an ultraviolet (UV) curable resin, a thermosetting resin, and other resins which are cured by energy such as electromagnetic waves or radiation are considered. In the present embodiment, a description will be given using a UV curable resin. The viscosity of the binder R to be used is not particularly limited.

Here, the case where the stage 11a is provided with a drive mechanism and the stage 11a is moved toward the application unit 12 has been described here, but the movement may be relative movement. That is, the stage 11a may be fixed, and the application unit 12 may be provided with a drive mechanism, and the application unit 12 may be moved toward the stage 11a.

[Finishing device 2]

The bonding apparatus 2 is a bonding part of the manufacturing apparatus 100 of the member for display devices, and the liquid crystal panel S1 and the cover panel S2 are laminated and bonded.

As shown in FIG. 3(A), the bonding apparatus 2 has a structure in which a lower side plate 22 and an upper side plate 23 are opposed to each other in a chamber 21. The chamber 21 is movable up and down, and when moving upward, the lower side plate 22 and the upper side plate 23 are opened to the outside, so that the liquid crystal panel S1 and the cover panel S2 can be carried. When the chamber 21 moves downward, the lower side plate 22 and the upper side plate 23 are housed in the chamber 21, and a sealed space is formed inside the chamber 21. The chamber 21 can adjust the internal pressure by an exhaust member (not shown) force. In other words, when the liquid crystal panel S1 and the cover panel S2 are carried in, the chamber 21 is lowered, the inside is sealed, and the pressure is reduced, and the pressure is applied in a reduced pressure environment.

In the present embodiment, a case where the liquid crystal panel S1 to which the adhesive R is applied is supported on the lower side plate 22 and the cover panel S2 is held on the upper side plate 23 will be described as an example.

As the holding means of the upper side plate 23, for example, all holding mechanisms such as an electrostatic chuck, a mechanical chuck, a vacuum chuck, a bonding chuck, and the like which are currently or in the future can be applied. Multiple types of chucks can also be used in combination. A drive mechanism 25 is provided on the upper side plate 23. With the drive mechanism 25, the upper side plate 23 is movable in the horizontal direction and the vertical direction.

The liquid crystal panel S1 is moved by moving the upper side plate 23 in the horizontal direction. Alignment with the cover panel S2. Further, as shown in FIG. 3(B), the upper side plate 23 is moved downward, and the held cover panel S2 is pressed against the liquid crystal panel S1 supported by the lower side plate 22, and laminated. The liquid crystal panel S1 and the cover panel S2 are bonded together via the adhesive R applied on the surface of the liquid crystal panel S1, thereby forming a laminated body S10.

Further, the lower side plate 22 may have the same holding mechanism as the upper side plate 23, In order to avoid deviation of the position of the supported liquid crystal panel S1. Further, instead of the upper side plate 23, the lower side plate 22 may be moved in the horizontal direction to perform alignment. Of course, both the upper side plate 23 and the lower side plate 22 can be moved in the horizontal direction.

[Curing device 3]

The curing device 3 is a curing portion of the manufacturing device 100 for a member for a display device, and cures the adhesion layer R1 to which the liquid crystal panel S1 and the cover panel S2 are bonded. As shown in Figure 4 (A), As shown in FIG. 4(B), the curing device 3 includes a mounting table 31 on which the stacked body S10 is placed, and an irradiation unit 33 disposed on the mounting table 31.

The irradiation unit 33 includes means for irradiating the curing energy. The type of the energy to be irradiated can be appropriately selected from the group consisting of electromagnetic waves such as ultraviolet rays and infrared rays, radiation of particle beams, and the like, depending on the type of the binder R to be used. When a UV curable resin is used as the binder R, the irradiation unit 33 may include, for example, one or more lamps or light emitting diodes (LEDs) capable of emitting UV. The irradiation of the irradiation unit 33 is adjusted to be able to illuminate the amount of energy required to cure the adhesive layer R1. The amount of energy is adjusted by the intensity and time of the illumination.

[Transporting device 4]

The transport device 4 constitutes a transport unit of the manufacturing device 100 for the display device member. The transport device 4 includes a transport unit that transports the liquid crystal panel S1 and the cover panel S2 to each of the adhesive application device 1 , the bonding device 2 , and the curing device 3 , and a drive mechanism thereof. As the transport unit, for example, a turntable, a conveyor, a pick-up member that is slidably mounted on a rail, or the like is considered, and the liquid crystal panel S1 and the cover panel S2 can be transported between the respective devices. The device can also be any device.

In the present embodiment, as an example of using the conveyor 40 as a conveying unit, as shown in FIG. The liquid crystal panel S1 and the cover panel S2 are placed on the surface of the conveyor 40 and transported. The adhesive application device 1, the bonding device 2, and the curing device 3 are disposed along the conveyor 40, and the loading and unloading of the panel from the conveyor 40 to each device can be realized by a pickup member (not shown).

Here, for convenience of explanation, the direction in which the two panels are conveyed by the conveyor 40 will be described. In the "transport direction", the direction orthogonal to the conveyance direction on the conveyor 40 is referred to as "cross-sectional direction". The side of the loader 200 in the conveyance direction of the conveyor 40 is referred to as "upstream side", and the side of the unloader 300 is referred to as "downstream side". The side closer to the adhesive application device 1 , the bonding device 2 , and the curing device 3 in the cross-sectional direction of the conveyor 40 is referred to as "back side", and the far side is referred to as "front side".

In the transport device 4, the imaging device 5 and the adhesion layer inducing portion forming device 6 are provided adjacent to each other in the transverse direction. The imaging device 5 and the adhesion layer inducing portion forming device 6 are disposed between the adhesive coating device 1 on the conveyor 40 and the bonding device 2. As shown in FIG. 6, the imaging device 5 includes a camera body 51a disposed above the conveyor 40, and a lens barrel 51b extending from the camera body 51a toward the conveyor 40.

The adhesive layer inducing portion forming device 6 is disposed on the conveyor of the image pickup device 5 With the front side. The adhesive layer inducing portion forming device 6 forms an adhesive layer inducing portion RG. The adhesive layer inducing portion RG induces the adhesive R formed at the edge of the adhesive layer R1 of the liquid crystal panel S1 in the adhesive application device 1 to a predetermined position. In the case of the rectangular liquid crystal panel S1, the four corner adhesives R are induced to a predetermined position, that is, the contact position C with the cover panel S2 at the time of bonding. The adhesive layer inducing portion RG may eventually induce the adhesive layer R1 when it is bonded to the bonding apparatus 2, and thus the adhesion layer inducing portion RG may be formed on the liquid crystal panel S1 on which the adhesive layer R1 is formed, or may be formed on the liquid crystal panel S1 in which the adhesive layer R1 is formed. It is carried out on the opposite cover panel S2. In the present embodiment, the adhesive layer inducing portion RG is formed at the four corners of the inner frame F of the cover panel S2 at the portions where the four corners of the adhesive layer R1 should be contacted at the time of bonding.

The method of forming the adhesion layer inducing portion RG is not limited to one, and can be formed, for example, by supplying an adhesive material to any of the panels. The adhesive material is a material having a high affinity with the binder, and when it comes into contact with the adhesive layer applied to the liquid crystal panel S1, it acts to induce the binder R. The adhesive material is not limited to a specific material, and in the present embodiment, as an example, the binder R10 is used. The binder R10 is not limited to the same as the binder R applied to the liquid crystal panel S1, and different ones may be used. The adhesive R10 forming the adhesion layer inducing portion RG may function as a cause, and does not need to be coated as thick as the adhesive R of the adhesive layer R1, so that it is not necessary to worry about the collapse of the adhesive layer R1. Therefore, a binder having a lower viscosity than the binder R can also be used.

As shown in FIG. 6, the adhesion layer inducing portion forming device 6 includes a reservoir T10, an adhesive R10 for forming an adhesion layer inducing portion RG, and a dispenser 61. The storage tank T10 is connected to the dispenser 61 via a flow path of the adhesive R, that is, a pipe and a valve for adjusting the supply amount of the adhesive R.

The dispenser 61 is not limited to a specific one as long as it can supply the adhesive R10. However, in consideration of the action as a cause of the binder R, it is preferable that the binder R10 is applied in a limited and thin manner to be induced. Part of the binder R. Therefore, for example, a transfer device that transfers by pressing the adhesive onto the coated surface can be used. In the present embodiment, an example in which a stamp type nozzle is used will be described as an example of such a transfer device. Further, the binder R10 for forming the adhesion layer inducing portion RG will hereinafter be referred to as "imprinting adhesive R10". In addition, in FIG. 6 and the following drawings, the adhesion layer inducing portion RG is displayed in an exaggerated manner and does not reflect the actual value. size.

The dispenser 61 is attached to the lens barrel 51b of the imaging device 5 via a fixing member (not shown), and is disposed such that the tip end of the nozzle faces the upper surface of the conveyor 40. Further, the dispenser 61 is disposed such that the position of the tip end of the nozzle is located below the front end of the lens barrel. The shape of the tip end of the nozzle can be, for example, a rectangle having rounded corners so that the adhesion layer inducing portion RG can be formed along the four corners of the inner frame F of the cover panel S2. Alternatively, it may be a shape of a right-angled triangle such that a right-angled portion is aligned with a corner of the four corners.

The imaging device 5 is connected to a drive mechanism (not shown). The imaging device 5 can be moved at least in the transverse direction and the vertical direction by the drive mechanism. As described above, since the dispenser 61 of the adhesive layer inducing portion forming device 6 is coupled to the lens barrel 51b of the imaging device 5, the adhesive layer inducing portion forming device 6 moves integrally with the imaging device 5. Further, the imaging device 5 may be connected to the adhesive layer inducing portion forming device 6, and the driving mechanism may be separately provided to move independently or synchronously.

The imaging device 5 can image a desired portion of the liquid crystal panel S1 and the cover panel S2 conveyed on the conveyor 40 by a combination of the movement of the conveyor 40 in the conveyance direction and the movement of the drive mechanism in the transverse direction. Further, the adhesion layer inducing portion forming device 6 can convey the liquid crystal panel S1 or the cover panel S2 conveyed on the conveyor 40 by the combination of the movement of the conveyor 40 in the conveyance direction and the movement of the drive mechanism in the transverse direction and the vertical direction. The desired portion forms an adhesion layer inducing portion.

Further, as described above, the tip end of the nozzle of the adhesive layer inducing portion forming device 6 is located below the tip end of the lens barrel of the image pickup device 5. When the driving mechanism is moved downward, the nozzle front end of the adhesive layer inducing portion forming device 6 is smaller than the lens barrel 51b Since the coated surface is first contacted, the adhesive R10 can be transferred without being hindered by the lens barrel 51b. The specific operation of the imaging device 5 and the adhesive layer inducing portion forming device 6 will be described in detail in the action.

[Control device 7]

The control device 7 is a device that controls the operation of the manufacturing device 100 for the display device member. The control device 7 performs control of the operation of the devices constituting each part, or control of the timing of transporting the liquid crystal panel S1 and the cover panel S2, and further performs detection processing, calculation processing, and the like necessary for the operation of each device.

In the present embodiment, the control device 7 performs position detection processing using, in particular, an image acquired by the imaging device 5. Further, the positional information detected by the position detecting process is used to control the operation of the adhesive layer inducing portion forming device 6 and the control of the alignment operation in the bonding portion. The control device 7 further includes a storage unit in which a reference value and the like necessary for the processing are stored. The specific content of the processing of the control device 7 will also be detailed in the role.

The control device 7 can be realized by, for example, a dedicated electronic circuit or a computer operating in a predetermined program. Alternatively, an input device such as a switch, a touch screen, a keyboard, or a mouse may be connected to the control device 7 to enable the operator to operate the control device 7. Further, an output device such as a display, a lamp, or a meter for confirming the state of the device or the panel may be connected.

[effect]

Referring to Figures 1 to 6, reference is also made to Figures 7(A) and 7(B). 7(C), 7(D) to 10(A) and 10(B), the operation of the present embodiment having the above configuration will be described. In addition, the position, size, and the like of each device or the liquid crystal panel S1 and the cover panel S2 are merely for convenience of explanation.

First, as shown in FIG. 1, the liquid crystal panel S1 and the cover panel S2 are carried by the loader 200 into the manufacturing apparatus 100 of the member for display devices, and are conveyed on the conveyor 40 of the conveyance apparatus 4. Each of the panels is conveyed so that the surface to be the bonding surface is on the upper side. In other words, in the present embodiment, the liquid crystal panel S1 is placed such that the surface on which the adhesion layer R1 is formed faces upward, and the cover panel S2 is placed on the conveyor 40 so that the surface on which the printing frame P is formed faces upward. .

[Binder coating treatment]

As shown in FIG. 7(A), the liquid crystal panel S1 is picked up by a pick-up member (not shown) and placed on the stage 11a of the adhesive application device 1. The stage 11a starts moving in the direction toward the coating unit 12 (hereinafter referred to as "moving direction" by the drive mechanism.

As shown in FIG. 7(B), the coating unit 12 is coated on the liquid crystal panel S1. When the starting position comes to the front end position of the slit nozzle, the ejection of the adhesive R is started. Since the stage 11a continues to move, as shown in FIG. 7(C), the adhesive R is applied to the surface of the liquid crystal panel S1. As shown in FIG. 7(D), when the application end position of the liquid crystal panel S1 reaches the tip end position of the slit nozzle, the discharge of the adhesive R is completed. The application start position is an end portion (left end in the drawing) of one side of the liquid crystal panel S1, and the application end position is an end portion (right end in the drawing) that is opposite to the application start position.

Spraying of the adhesive R by the movement of the stage 11a and the coating unit 12 A rectangular-shaped adhesive layer R1 is formed on the upper surface of the liquid crystal panel S1. The adhesive layer R1 is formed to have a similar shape and substantially the same size as the inner frame F of the cover panel S2 to which the liquid crystal panel S1 is bonded. The "similar shape and substantially the same size" means a shape and a size in which the outer edge of the adhesive layer R1 substantially overlaps the outer edge of the inner frame F when the liquid crystal panel S1 and the cover panel S2 are bonded together. Further, when "similar shape and same size" are mentioned, not only the case where the sizes are completely identical but also the "substantially the same size" of the same size is included.

However, as described above, the edge portion of the adhesive layer R1 has a curved surface shape due to the surface tension (see FIGS. 19(A) and 19(B)), and particularly the four corner portions have a 1/4 spherical shape. Therefore, if it does not reach the contact position C with respect to the four corners of the inner frame F of the cover panel S2 (refer FIG. 20 (A)), and it is bonded directly to the cover panel S2 in this state, it will become the edge of the adhesive layer R1. A state in which a gap is formed between the four corners and the side or the four corners of the inner frame F of the cover panel S2 (see FIG. 20(B)).

[Image processing, position detection processing, and adhesion layer forming unit formation processing]

The liquid crystal panel S1 in which the adhesive layer R1 is formed is carried out from the adhesive application device 1 by a pick-up member (not shown), and is placed on the conveyor 40 of the transport device 4 again, and is brought into contact with the cover panel S2. As shown in FIG. 5, the liquid crystal panel S1 and the cover panel S2 are placed so as to be adjacent to each other in the transverse direction of the conveyor 40, and are arranged substantially in parallel. In the drawing, an example in which the liquid crystal panel S1 is placed on the inner side of the conveyor 40 and the cover panel S2 is placed on the front side of the conveyor 40 is illustrated. However, the placement position is not limited thereto, and the liquid crystal panel S1 may be mounted. The cover panel S2 is placed on the front side of the conveyor 40 on the front side of the conveyor 40. The liquid crystal panel S1 and the cover panel S2 are transported on the conveyor 40. It moves to below the imaging device 5 and the adhesion layer induction part forming apparatus 6.

Here, imaging processing of the imaging device 5, position detection processing of the control device 7, and adhesion layer inducing portion forming processing of the adhesion layer inducing portion forming device 6 are performed.

The imaging processing and the position detection processing are performed in order to acquire data used in the alignment of the two panels of the bonding process to be described later. As described above, the liquid crystal panel S1 and the cover panel S2 are stacked such that the outer edge of the adhesive layer R1 formed on the liquid crystal panel S1 overlaps with the line of the inner frame F of the cover panel S2. In other words, the four corners of the adhesive layer R1 formed on the liquid crystal panel S1 are bonded to the four corners of the inner frame F of the cover panel S2 (hereinafter also simply referred to as "four corners of the cover panel S2"). In the case where there is a deviation in the positions of the four corners of the two panels, the deviation must be corrected before the fitting. Therefore, in the imaging processing, imaging is performed in the vicinity of the four corners of the inner frame F of the liquid crystal panel S1 and the inner frame F of the cover panel S2 (the portion indicated by the dotted circle in FIGS. 9(A) and 9(B)), and the position detection processing is performed. Determine the coordinates of the four corners of the two panels.

The coordinates of the four corners of the inner frame F of the cover panel S2 obtained for the alignment in the bonding process are also utilized in the adhesion layer inducing portion forming process. As described above, the adhesive layer inducing portion RG is formed at the four corners of the inner frame F of the cover panel S2 so as to induce the four corners of the adhesive layer R1 at the time of bonding. Here, by using the coordinates of the four corners determined for the alignment of the two panels, the adhesion layer inducing portion RG can be formed at an accurate position.

The imaging processing, the position detecting process, and the adhesion layer inducing portion forming process may be performed independently, but the movement of the conveyor 40 in the conveying direction and the imaging device 5 and the adhesion layer inducing portion forming device 6 may be directed in the transverse direction and the vertical direction. Move Combine and do it at the same time.

For example, as shown in FIG. 8(A), first, the conveyor 40 on which the liquid crystal panel S1 and the cover panel S2 are placed is moved in the transport direction, and the end portion (hereinafter referred to as the front end) of the panel on the upstream side is stopped. The position below the camera unit 5. Next, as shown in FIG. 8(B), the imaging device 5 is moved from the front side of the apparatus toward the back side in the cross-sectional direction, and stopped at the position of each corner to acquire an image including each corner. In addition, the amount of movement and the stop position of the conveyor 40 and the imaging device 5 can be determined in advance according to the size of the panel or the like, and are stored in advance in the storage unit of the control device 7.

The control device 7 performs position detection processing each time the imaging device 5 acquires an image of each corner. A well-known method can be used for position detection. For example, in the liquid crystal panel S1, an image is analyzed to detect the outline of the panel, and a predetermined range centering on the intersection of both sides of the panel is determined as an angle, and the coordinates are obtained. In the cover panel S2, the image is also analyzed to detect the outline of the inner frame F, and a predetermined range centering on the intersection of both sides of the frame line of the inner frame F is determined as an angle, and the coordinates are obtained.

The cover panel S2 that performs the transfer of the imprinting adhesive R10 performs the adhesion layer inducing portion forming process based on the coordinates acquired by the position detecting process after the position detecting process. The dispenser 61 of the adhesive layer inducing portion forming device 6 is moved to the coordinates of the angle determined in the control device 7. Then, the imprinting adhesive R10 is ejected from the dispenser 61.

When the adhesive layer inducing portion forming process is performed on the cover panel S2, as shown in FIG. 9(A), the dispenser 61 is moved to the coordinates of the respective corners of the inner frame F of the cover panel S2. Further, the dispenser 61 is lowered to press the tip end of the nozzle to the cover panel S2. angle. The imprinting adhesive R10 is ejected and transferred to the cover panel S2. The tip end of the nozzle of the dispenser 61 is formed along the corner of the inner frame F of the cover panel S2. Therefore, as shown in FIG. 9(B), the binder R10 for imprinting is along the corner of the inner frame F of the cover panel S2. The transfer is performed in such a manner as to form the adhesion layer inducing portion RG.

Further, since the dispenser 61 is connected to the imaging device 5 and is adjacent to each other in the transverse direction, the imaging device 5 is moved toward the front side or the back side after the image is taken by the imaging device 5, whereby the dispenser 61 can be made. Easily move to the coordinates of the corner.

When the above processing is completed for each corner of the front end side, as shown in FIG. 8(A), the conveyor 40 is moved in the transport direction, and the end portions of the liquid crystal panel S1 and the cover panel S2 on the downstream side (hereinafter referred to as The rear end) is stopped at a position below the camera unit 5. Then, as shown in FIG. 8(B), the imaging device 5 is photographed while moving from the back side of the apparatus toward the front side in the cross-sectional direction. Similarly to the distal end side, each time the image of the angle is acquired, the position detecting process is performed in the control device 7, and the adhesive layer inducing portion forming process is also performed on the cover panel S2.

Further, the processing order of each of the corners is an example, and the order can be changed as appropriate. Further, the movement of the conveyor 40 or the movement of the image pickup device 5 and the adhesion layer inducing portion forming device 6 may be relative movement. For example, the image pickup device 5 and the adhesion layer inducing portion forming device 6 may be not only in the transverse direction but also along the edge. The reverse direction of the transport direction or the transport direction is processed.

[Finishing process]

When the imaging processing and the position detecting process of all the four corners of the liquid crystal panel S1 and the cover panel S2 and the bonding layer inducing portion forming process for the cover panel S2 are completed, the liquid crystal panel S1 is completed. The cover panel S2 is conveyed on the conveyor 40, and is carried into the bonding apparatus 2 by a pick-up member not shown. At this time, the loading is performed so as to maintain the coordinates of the respective corners detected in the position detecting process.

As shown in FIG. 3(A), in the bonding apparatus 2, the liquid crystal panel S1 in which the adhesion layer R1 is formed is placed on the lower side plate 22. At this time, the surface on which the adhesive layer R1 is formed faces upward is placed. The cover panel S2 is reversed such that the bonding surface faces downward, and is delivered to the upper side plate 23 to be held by the holding mechanism. The two panels are delivered so as to maintain the position information detected by the transport device 4.

At this time, since the chamber 21 moves upward, the lower side plate 22 and the upper side plate 23 are opened. When the conveyance of the two panels is completed, the chamber 21 is driven to be positioned below, and the lower side panel 22 and the upper side panel 23 are housed inside the chamber 21. A sealed space is formed inside the chamber 21, and the inside of the sealed space is decompressed by an exhaust member (not shown).

As described above, the liquid crystal panel S1 and the cover panel S2 are stacked such that their respective four corners are aligned. However, there is a possibility that the positions of the four corners are shifted. Therefore, before the bonding, the liquid crystal panel S1 and the cover panel S2 are formed. Position correction. The position correction is performed based on the coordinates of the respective corners detected in the position detecting process of the conveying device 4. A known method can be used for the position correction. For example, the position reference value of each corner can be stored in advance in the storage unit of the control device 7, and the position correction amount can be calculated based on the difference between the position reference value and the coordinates of the detected angles. .

Based on the calculated position correction amount, the upper side plate 23 is moved in the x, y, and θ directions, thereby correcting the positional deviation of the liquid crystal panel S1 and the cover panel S2. Further, here, an example in which the position correction is performed by moving the upper side plate 23 has been described, but it is also movable. The lower side plate 22 is moved, or both the upper side plate 22 and the lower side plate 23 are moved to perform position correction.

After the positional deviation is corrected, as shown in FIG. 3(B), the upper side plate 23 is lowered toward the lower side plate 22, and the cover panel S2 held by the upper side plate 23 is pressed to the liquid crystal panel S1 supported by the lower side plate 22. The adhesive layer R1 formed on the surface of the liquid crystal panel S1 is pressed to the lower side plate 22 via the liquid crystal panel S1, and is adhered to both panels, thereby bonding the two panels.

The action of the adhesion layer inducing portion RG at the time of bonding is shown in Fig. 10 (A) and Fig. 10 (B). When the two panels are attached, as shown in FIG. 10(A), a part of the four corners of the edge portion of the adhesive layer R1 on which the curved curved surface is formed is in contact with the adhesive layer inducing portion formed at the four corners of the inner frame F of the cover panel S2. RG. Then, as indicated by the arrow in the circle of the figure, the adhesive layer inducing portion RG is attracted to the four corners of the adhesive layer R1, and reaches the contact position C with the cover panel S2, that is, the four corners of the inner frame F. Thereby, it is possible to prevent a gap from being generated between the four corners of the curved frame-shaped adhesive layer R1 and the four corners of the inner frame F of the cover panel S2 which is substantially perpendicular to the cross-sectional view. That is, as shown in FIG. 10(B), the laminated body S10 which has no gap between the printing frame P and the adhesion layer R1 is completed.

When the bonding of the liquid crystal panel S1 and the cover panel S2 is completed, the decompression state is released. In the state, the chamber 21 moves upward and the closed space is opened. The laminated body S10 is carried out from the bonding apparatus 2, and is conveyed again by the conveying apparatus 4. Then, it is carried in the curing device 3 by a pick-up member (not shown). Further, in the transfer process from the bonding apparatus 2 to the curing apparatus 3, the laminated body S10 may be left in the air for a fixed period of time. During this standing time, the laminated body S10 is pressed by the atmospheric pressure and stabilized. And even if it's sticky A void remains in the layer R1, and by allowing sufficient time for the void to be reduced.

[Curing treatment]

In the curing apparatus 3, as shown in FIG. 4(A) and FIG. 4(B), the laminated body S10 is placed on the mounting table 31, and the irradiation unit 33 irradiates the adhesive layer R1 to cure ultraviolet rays of the required strength, and is bonded. The formal curing of layer R1 is completed.

[effect]

(1) In the manufacturing apparatus 100 for a display device member of the present embodiment, a pair of workpieces including the liquid crystal panel S1 and the cover panel S2 constituting the display device are bonded together via a binder R, and the manufacturing device 100 for the display device member The adhesive coating device 1 includes an adhesive R applied to the liquid crystal panel S1 to form an adhesive layer R1, an adhesive layer inducing portion forming device 6, an adhesive layer inducing portion formed on the liquid crystal panel S1, and a bonding device 2 The adhesive layer R1 formed on the liquid crystal panel S1 contacts the cover panel S2 to bond a pair of workpieces, and the adhesive layer inducing portion RG induces at least a portion of the edge of the adhesive layer R1 to the cover in the bonding device 2. Contact position C where panel S2 contacts.

Since the edge of the adhesive layer R1 has a curved surface shape due to the action of the surface tension, it does not reach the contact position C with the cover panel S2 at the time of bonding, and there is a possibility that a gap is formed between the edge portion and the cover panel S2. By forming the adhesion layer inducing portion RG to induce the edge portion to the contact position C with the cover panel S2, generation of a gap can be prevented. Thereby, the member L for display devices having a good appearance can be manufactured, and the yield of the product can also be improved. Moreover, by forming an adhesive layer inducing portion RG, coating the adhesive When the adhesive R in the apparatus 1 is applied, it is not necessary to strictly control the shape of the edge of the adhesive layer R1. Therefore, various types of adhesives or panels can be applied, and the influence of variations in the coating environment of the adhesive can be reduced, and maintenance or predetermined conditions can be simplified. Therefore, the manufacturing apparatus of the member for display devices has a wide range of application, and productivity can also be improved.

(2) Specifically, a polygonal shape, that is, a moment is formed on the cover panel S2 The inner frame F of the shape. The adhesive application device 1 forms an adhesive layer R1 having a shape similar to that of the inner frame and substantially the same size on the liquid crystal panel S1. In the bonding apparatus 2, the liquid crystal panel S1 and the cover panel S2 are bonded so that the adhesion layer R1 may enter the inner frame F. The adhesive layer inducing portion forming device 6 forms an adhesive layer inducing portion RG on at least a part of the edge portion of the inner frame F of the cover panel S2. At the time of bonding, the adhesion layer inducing portion RG induces at least a part of the edge portion of the adhesion layer R1 to reach the edge portion of the inner frame F.

Thus, when bonding with the cover panel S2 in which the inner frame F is formed, the adhesive layer When the edge portion of the inducing portion RG-inducing bonding layer R1 reaches the edge portion of the inner frame F of the cover panel S2, it is possible to prevent a visible gap from being formed between the inner frame F and the inner frame F, and it is possible to manufacture a member for a display device having a good appearance. L.

(3) More specifically, the corners of the rectangular inner frame F of the cover panel S2 are Roughly right angle. In particular, since the display area is enlarged, almost all of the curved curved surfaces provided at the four corners disappear. Further, each corner of the edge portion of the adhesive layer R1 coated in a rectangular shape has a curved shape after coating.

In the edge of the adhesive layer R1, the surface tension plays a large role in the quadrilateral shape In the case of a larger curved surface, the possibility that the gap between the cover panel S2 and the adhesive exceeds the allowable range is also large. Therefore, it is sticky even when the adhesive R is applied or shortly after coating. The edge of the layered layer R1 is formed as a curved surface within the allowable range, and the four corners may also be outside the allowable range. Therefore, the formation of the adhesion layer inducing portion RG is performed particularly at the four corners of the edge portion of the adhesive layer R1, whereby the four corners of the adhesive layer R1 can be prevented from being outside the allowable range. In other words, even if the embossing adhesive R10 is not applied to the entire edge portion of the adhesive layer R1, it is possible to manufacture a high-quality display device member L which is defective in appearance due to the gap or reduced in damage due to peeling. Further, since the imprinting adhesive R10 is not applied to the entire edge portion of the adhesive layer R1, the formation time of the adhesive layer inducing portion RG can be shortened, and the adhesive layer inducing portion forming device 6 can have a simple configuration.

(4) The manufacturing apparatus 100 for a member for a display device further includes a pair of liquid crystal panels The imaging device 5 that performs imaging by S1 and the cover panel S2. The adhesion layer inducing portion forming device 6 may form the adhesion layer inducing portion RG on the cover panel S2 based on the images of the liquid crystal panel S1 and the cover panel S2 captured by the imaging device 5. Thereby, the adhesion layer inducing portion RG can be formed at an accurate position.

(5) The manufacturing apparatus 100 for a member for a display device further includes a conveying device 4. The conveyance device 4 conveys the liquid crystal panel S1 and the cover panel S2 between the adhesive application device 1 and the bonding device 2, and the imaging device 5 and the adhesion layer induction portion forming device 6 are provided adjacent to the transfer device 4. The bonding apparatus 2 performs alignment of the liquid crystal panel S1 and the cover panel S2 based on the images of the liquid crystal panel S1 and the cover panel S2 imaged by the imaging device 5. In other words, the image captured by the imaging device 5 is used not only for determining the formation position of the adhesion layer inducing portion but also for the alignment at the time of bonding. In other words, it is not necessary to provide a plurality of imaging devices 5 for each process, and it is possible to improve the manufacturing efficiency and to reduce the number of components.

(6) The adhesive layer inducing portion RG may be formed of a binding adhesive material. The adhesive layer inducing portion RG is formed by an adhesive material having high affinity with the binder, so that the adhesive layer can be smoothly induced.

(7) For the adhesive material, the adhesive R10 having a lower viscosity than the adhesive R forming the adhesive layer R1 may be used. The adhesive R10 forming the adhesive layer inducing portion RG may function as a cause, and since it is not required to be applied as thick as the adhesive R of the adhesive layer R1, there is no need to worry about the collapse of the adhesive layer R1. Therefore, by using a binder having a lower viscosity than the binder R, the handling becomes easy, and the induction portion forming member can be simplified, and the device cost can be reduced.

(8) The adhesive layer inducing portion forming device 6 may include an imprint nozzle that presses the adhesive R10 and transfers it to the coated surface. Thereby, the adhesive R10 can be thinly applied to a desired size, and the adhesive layer inducing portion RG conforming to the shape of the cover panel S2 can be formed.

[Second Embodiment] [structure]

Next, a second embodiment will be described with reference to Fig. 11 . In the following embodiments, the same components as those of the first embodiment are denoted by the same reference numerals, and the detailed description is omitted.

In the first embodiment, the adhesive layer inducing portion forming device 6 is provided in the conveying device 4. However, in the second embodiment, the configuration in which the adhesive layer inducing portion forming device 6 is provided in the front stage of the adhesive applying device 1 will be described.

Further, in the second embodiment, as shown in FIG. 11, the adhesive application device 1 is provided with an irradiation unit 13 that temporarily cures the applied adhesive. The irradiation unit 13 is disposed on the downstream side of the coating unit in the moving direction of the stage.

The irradiation unit 13 is a treatment unit that irradiates the adhesive R with energy for temporary curing. Temporary curing refers to a state in which the majority of the binder R is gelled but not fully cured. The type of energy to be irradiated can be appropriately selected from ultraviolet rays, infrared rays, electromagnetic waves, radiation, and the like depending on the type of the binder R to be used. Further, the viscosity of the adhesive which is highly necessary for suppressing the flow by temporary curing is estimated to be two thousand cps (centipoises) to tens of thousands of cps, preferably two thousand cps to five thousand cps having a relatively low viscosity.

In the present embodiment, since the UV curable resin is used for the binder R, the irradiation unit 13 has one or a plurality of LEDs, laser diodes (LDs), lamps, and the like that can emit ultraviolet rays (UV). The irradiation unit 13 is disposed above the stage 11a so as to be adjacent to the coating unit 12, and the irradiation source is attached so as to face the liquid crystal panel S1 placed on the stage 11a. Thereby, with the movement of the stage 11a, the liquid crystal panel S1 to which the adhesive R is applied can be continuously irradiated with energy.

The adhesive layer inducing portion forming device 6 is disposed on the downstream side of the irradiation unit 13 above the support unit 11. The adhesive layer inducing portion forming device 6 includes a reservoir T10 in which the imprinting adhesive R10 is housed, and a dispenser 62. The dispenser 62 uses an imprint nozzle similarly to the first embodiment. In the second embodiment, as shown in FIG. 12(A), the dispenser 62 has a configuration in which two nozzles are provided on a support portion extending in the transverse direction of the liquid crystal panel S1. The two nozzles are wide open and the width of the liquid crystal panel S1 in the cross-sectional direction When the liquid crystal panel S1 is positioned below the adhesion layer inducing portion forming device 6, the respective nozzles are located on the side of the liquid crystal panel S1 in the cross-sectional direction.

The adhesive layer inducing portion forming device 6 is connected to a driving device (not shown) and is movable at least in the vertical direction. Further, the adhesive layer inducing portion forming device 6 may be fixed, and the stage 11a of the support unit 11 may be moved in the vertical direction.

[effect]

In the second embodiment, the adhesion layer inducing portion forming treatment is performed on the liquid crystal panel S1 before the binder coating treatment. In other words, before the adhesion layer R1 is formed on the liquid crystal panel S1, the adhesion layer inducing portion RG is formed in advance on the liquid crystal panel S1. The adhesion layer inducing portion RG is formed at a position corresponding to the contact position C (see FIGS. 10(A) and 20(A)) of the liquid crystal panel S1. Specifically, the adhesion layer inducing portion RG is formed at a position of the liquid crystal panel S1 that faces the four corners of the inner frame F of the cover panel S2 at the time of bonding. As described above, the liquid crystal panel S1 is slightly larger than the inner frame F of the cover panel, and thus is formed slightly inside from the four corners of the outer edge of the liquid crystal panel S1. Thereby, the four corners of the adhesive layer R1 formed after the adhesion layer inducing portion forming treatment are induced by the adhesion layer inducing portion RG to reach the contact position C. The specific operation of the adhesion layer inducing portion forming process of the second embodiment will be described below.

The stage 11a of the support unit 11 moves, and stops when the end portion on the downstream side of the liquid crystal panel S1 reaches below the adhesion layer induction portion forming device 6.

The adhesive layer inducing portion forming device 6 is moved downward, and as shown in Fig. 12(A), the tips of the two nozzles are pressed to the bonding position on the liquid crystal panel S1. therefore, The imprinting adhesive R10 is ejected from the tip end of the nozzle and transferred onto the liquid crystal panel S1 to form an adhesion layer inducing portion RG. Then, the adhesion layer inducing portion forming device 6 is temporarily retracted in the upward direction, and the stage 11a is moved again in the downstream direction, and the stage is placed when the end portion on the upstream side of the liquid crystal panel S1 reaches the adhesive layer inducing portion forming device 6. 11a stops again. The adhesive layer inducing portion forming device 6 is moved downward, and the adhesive layer inducing portion forming device 6 ejects the imprinting adhesive R10 from the two nozzles and transfers the ink to the liquid crystal panel S1 to form the adhesive layer inducing portion RG. As a result, as shown in FIG. 12(B) and FIG. 12(C), the adhesion layer inducing portion RG is formed in the vicinity of the four corners of the liquid crystal panel S1, that is, at the position facing the four corners of the inner frame F of the cover panel S2 at the time of bonding. .

The amount of movement and the stop position of the stage 11a, and the formation of the adhesion layer induction portion The amount of movement of the apparatus 6 in the vertical direction can be determined in advance according to the size of the liquid crystal panel S1 or the like, and can be stored in advance in the storage unit of the control device 7.

The liquid crystal panel S1 having the adhesion layer inducing portion RG formed is connected to the overload stage 11a. Further moving, moving to the lower side of the coating unit 12, the adhesive R is applied to the entire surface of the liquid crystal panel S1 on which the adhesive layer inducing portion RG is formed to form the adhesive layer R1. As shown in FIG. 13(A) and FIG. 14(A), the edge portion of the adhesive layer R1 partially enters the adhesion layer inducing portion RG. As shown by the arrow in the figure, the adhesive layer R1 contacts the adhesion layer inducing portion RG, thereby being induced to the adhesive layer inducing portion RG side, and flows to the bonding as shown in Figs. 13(B) and 14(B). The outer edge of the layer inducing portion RG. In other words, the adhesion layer R1 is induced by the adhesion layer inducing portion RG to a position in contact with the four corners of the inner frame F of the cover panel S2 at the time of bonding.

In addition, in Fig. 14(B), for the sake of understanding, the adhesive layer R1 and the adhesive layer are adhered. The layered inducing portion RG is separated and displayed. However, in actuality, after the adhesion layer R1 is induced by the adhesion layer inducing portion RG, the adhesion layer R1 and the adhesion layer inducing portion RG are integrated.

The stage 11a further moves further, when the beginning of the adhesive layer R1 is located When the unit 13 is below, the irradiation unit 13 starts irradiation of energy. The stage 11a continues to move, and when the end of the adhesive layer R1 passes through the irradiation unit 13, the irradiation unit 13 ends the irradiation. The adhesive layer R1 is temporarily cured, and the adhesive layer R1 is in a state in which the flow is suppressed. By temporarily curing the adhesion layer R1 after the adhesion layer RG is induced by the adhesion layer inducing portion RG, it is possible to reduce the phenomenon that the surface tension is again applied to the edge portion of the adhesion layer R1 and the curved surface state is increased. At this time, the total energy irradiated by the irradiation unit 13 can be adjusted to adjust the curing rate of the binder R. Alternatively, the composition of the ambient gas of the portion irradiated with energy by the irradiation unit 13 may be adjusted to adjust the curing rate of the binder R. At this time, a mechanism may be provided which covers the periphery of the adhesive layer R1 located under the irradiation unit 13, and the internal environment adjustment can be performed. The curing rate of the binder R is about 80% or less, and in particular, it can be temporarily cured to the extent that the surface of the adhesive layer R1 retains fluidity. Thus, even if the bonding is performed after the temporary curing, the adhesive layer R1 can flow to reach the four corners of the cover panel S2 by the adhesive layer inducing portion RG.

In the bonding apparatus 2, the liquid crystal surface is bonded in the same manner as in the first embodiment. Plate S1 and cover panel S2. As shown in FIG. 13(C), the four corners of the adhesive layer R1 are induced to the contact positions with the four corners of the inner frame F of the cover panel S2 by the adhesive layer inducing portion RG, so that the inner frame F with the cover panel S2 can be prevented. The creation of a gap between the four corners.

In the above description, the example in which the adhesive layer inducing portion forming device 6 includes two nozzles has been described. However, four nozzles respectively disposed at positions corresponding to the contact positions of the four corners of the liquid crystal panel may be included. Thereby, the adhesion layer inducing portion forming treatment for the four corners can be performed at one time, and thus the manufacturing time is shortened.

[effect]

(1) In the second embodiment, the adhesive layer inducing portion forming device 6 is provided in the front stage of the adhesive applying device 1, and the adhesive layer inducing portion RG is formed on the liquid crystal panel S1 before the formation of the adhesive layer R1. Thereby, similarly to the first embodiment, the edge portion of the adhesive layer R1 can be induced to the contact position with the cover panel S2, and the occurrence of the gap can be prevented. Thereby, the member L for display devices having a good appearance can be manufactured, and the yield of the product can also be improved.

(2) Further, by providing the irradiation unit 13 which temporarily cures the adhesive by irradiating energy to the rear portion of the adhesive coating device 1, the adhesive layer R1 induced by the adhesive layer inducing portion RG to the contact position C can be temporarily made. Curing and maintaining the shape until it fits. Further, the temporary curing treatment is not essential, and may be appropriately omitted in consideration of the viscosity of the adhesive R or the like. In particular, in the present embodiment, since the adhesion layer inducing portion RG is provided on the liquid crystal panel S1 side where the adhesion layer R1 is formed, the adhesion layer inducing portion RG itself serves as a stopper for suppressing the flow of the adhesion layer R1, and at least the adhesion layer R1 can be suppressed. The contact surface with the cover panel S2 flows and spreads.

[Other embodiments]

(1) In the above embodiment, the imprint nozzle is used in the formation of the adhesion layer inducing portion RG, but the invention is not limited thereto, and for example, another transfer device or A jet nozzle or a needle nozzle capable of applying minute droplets. In the case where a plurality of ejection nozzles capable of applying minute droplets are provided, a coating pattern can be formed according to a shape to be applied, such as inkjet printing. As another transfer device, a transfer jig may be used by immersing the transfer jig in an adhesive groove and pressing it to the coated surface to perform transfer. The shape of the nozzle or the transfer jig can be appropriately changed so that the adhesive layer inducing portion RG having a necessary shape can be formed in accordance with the shape of the panel. For example, in the above-described embodiment, the inner frame F of the cover panel S2 has a rectangular shape and the four corners are rounded, and the angle is a right angle in the cross-sectional view. However, the present invention is not limited thereto. For example, it is also possible to use those whose corners are not rounded, that is, those which are substantially right angled when viewed horizontally. Alternatively, various shapes such as a curved curved shape may be used instead of a substantially right angle in the cross-sectional view. By changing the coating pattern flexibly to form the adhesive layer inducing portion RG with respect to the shape of the various inner frames F, it is possible to cope with various products, and it is possible to provide a highly convenient device.

(2) Further, the material forming the adhesion layer inducing portion RG is not limited to bonding The agent can be used as long as it is a material having a binding property. The adhesive thickness of the adhesive material containing the binder may be about several μm. In order to reduce the influence on the thickness of the adhesive layer R1, the adhesion layer inducing portion RG may be thin. For example, when the thickness of the adhesive layer R1 is a thickness of several tens of μm to several hundreds of micrometers, it can be set to a thickness of about 1/2 or less or 1/5 or less of the thickness of the adhesive layer R1.

(3) The adhesion layer inducing portion RG can induce the adhesion layer R1 to the required The position is not limited to those formed by the adhesive material. For example, the adhesion layer inducing portion can also be formed by changing the roughness of the surface of the panel. "Change roughness" is not It only includes increasing the roughness, but also reducing the roughness to make the surface smoother. When the roughness is increased, the adhesive layer inducing portion forming device 6 may be provided with, for example, sand blast, chemical etching, or plasma etching instead of the dispenser 61 or the dispenser 62. Plasma etching, laser ablation, etc., which impart roughness to the surface of the panel. The portion to which the surface of the panel is roughened is the adhesive layer inducing portion RG, and the four corners of the adhesive layer R1 are caused to flow to the contact position with the inner frame F of the cover panel S2.

Further, the surface of the adhesion layer inducing portion may be subjected to plasma treatment or the like to modify the surface to promote the flow of the binder. For example, the adhesion layer inducing portion can also be formed by changing the active state of the panel surface. For example, by performing a hydroxyl (OH) group terminalization on the surface of the panel, the active state of the panel surface can be changed to obtain a new adhesive property. When a glass using ceria as a raw material is used as a panel, it can be set to a hydroxyl group (OH group) terminal state by oxidation treatment. As the oxidation treatment, an oxidative plasma treatment or a chemical treatment can be used.

Alternatively, the adhesive R may be applied to the liquid crystal panel S1 in the adhesive application device 1 and temporarily cured by the irradiation unit 13, and then the four corner portions may be pressed with a predetermined force. The pressed portion becomes the adhesive layer inducing portion RG, and the four corners of the adhesive layer R1 flow to the contact position with the inner frame F of the cover panel S2. At the time of pressing, for example, it is possible to use a member which is a member having a rectangular shape of the same size as the liquid crystal panel S1, and only a portion of the four corners protrudes slightly downward.

(4) In the above-described embodiment, an example in which the conveyor 40 is provided as the transport unit 4 that transports the transport units of the liquid crystal panel S1 and the cover panel S2 has been described. Ming, but not limited to this. For example, as shown in FIG. 15, the transport unit may be provided with a holding member 41 that is provided with two arms (arm) 41a and arms 41b arranged in parallel on the rail 42 so as to be movable on the rail 42. .

The liquid crystal panel S1 and the cover panel S2 are held by the two arms 41a and 41b, respectively, and are conveyed on the rail in a facing manner. The imaging device 5 and the adhesion layer inducing portion forming device 6 are disposed so as to be positioned between the two arms 41a and 41b on the rail. At this time, the imaging device 5 can be, for example, a camera provided on the upper and lower sides. Thereby, the upper and lower panels can be simultaneously photographed.

(5) In the above embodiment, the adhesion layer inducing portion RG is formed at the four corners of the edge portion of the adhesive layer R1, but it is not limited to the four corners, and may be formed in other portions of the edge portion, or as shown in Fig. 16 (A). ) is formed on the entire edge as shown in Fig. 16(B). In this case, the adhesive layer inducing portion forming device 6 may have the same configuration as that of the above embodiment, but a multi-nozzle or a needle nozzle capable of continuously applying a small amount of a binder may be used. Further, for example, the coating amount can be adjusted depending on the portion. For example, the coating amount of the imprinting adhesive R10 is increased at the four corners of the adhesive layer R1 having a large curved curved surface, and the coating amount or the like is reduced in the other straight portions. Further, the formation of the adhesion layer inducing portion RG may be performed in advance by another process before the liquid crystal panel S1 is carried into the manufacturing apparatus 100 for the display device member.

(6) The manufacturing apparatus 100 for members for display devices may be provided with means for performing other processes before or after the adhesive application device 1, the bonding device 2, and the curing device 3. For example, a taping unit that bundles the completed liquid crystal display panel may be provided. Moreover, it does not require curing treatment depending on the type of adhesive In the case of a case where the curing process is performed by an independent device or the like, the manufacturing device 100 for the member for a display device without the curing device 3 may be employed.

(7) In the above embodiment, the liquid crystal panel S1 is set as the first workpiece. Although the cover panel S2 has been described as the second workpiece, it is needless to say that the cover panel S2 is the first workpiece and the liquid crystal panel S1 is the second workpiece. In other words, in the case where the first embodiment is applied, the adhesive layer R1 may be formed on the cover panel S2, and the adhesion layer inducing portion RG may be formed on the liquid crystal panel S1. Alternatively, in the case where the second embodiment is applied, the adhesive layer R1 may be formed after the adhesive layer inducing portion RG is formed on the cover panel S2.

Further, in the above-described embodiment, the example in which the adhesive layer inducing portion RG is formed at the edge of the inner frame F of the cover panel S2 has been described. However, as shown in FIG. 17, the printing may be performed from the edge of the inner frame F. The adhesive layer inducing portion RG is formed in the frame P. In this case, the adhesive layer inducing portion RG may be formed so as to induce the adhesive layer R1 to a position to be in contact with the opposing liquid crystal panel S1.

Further, the adhesive layer R1 may be formed not on either of the liquid crystal panel S1 and the cover panel S2 but on both. Further, the adhesion layer inducing portion RG may not be formed on either of the liquid crystal panel S1 and the cover panel S2, but may be formed on both of them. That is, the combination of the formation of the adhesive layer R1 on the pair of workpieces and the formation of the adhesion layer inducing portion RG can be freely determined. In either of the patterns, the adhesive layer inducing portion RG can induce the edge portion of the adhesive layer R1 formed on one of the workpieces to a position to be in contact with the other workpiece, that is, a contact position.

It is originally desirable to apply a suitable amount of adhesive to a pair of workpieces to be fitted R, using the adhesive layer R1 to fill all the bonding portions. If the amount of the binder R is small, the portion not filled by the adhesive layer R1 may become a boundary line and the value of the product may be lowered. When the amount of the binder R is large, the adhesive layer R1 is extruded from the bonding portion, which is a factor that hinders the assembly property of the member for a display device. Even if the coating amount is adjusted so that the adhesive layer R1 is not extruded as much as possible, since the surface tension acts on the edge of the adhesive layer R1, only a small area which is substantially smaller than the entire bonded portion can be filled. Thus, the portion where only the adhesive R is applied and which cannot be filled, that is, the portion of the workpiece which the adhesive should originally contact is the contact position. The contact position C described in the above embodiment refers to all positions where the adhesive layer R1 on the workpiece should be in contact, and by providing the adhesive layer inducing portion RG, it is also possible to fill the portion where the adhesive layer R1 is not filled.

In addition, the liquid crystal panel S1 and the cover panel S2 are only examples of the workpiece to be bonded, and the workpiece is bonded to the surface of the laminate which constitutes the laminate of the display device. , shape, material, etc. Of course, it is also possible to fit a workpiece without a printed frame. For example, a display panel including a polarizing plate or the like, a touch panel for operation, a cover panel S2 for protecting a surface, a flat backlight, or a light guide plate for a backlight may be bonded together to form a display device. It is sufficient to use the component L. As the display device, a display device having a flat plate-like workpiece such as a liquid crystal display or an organic EL display and which is currently or in the future is widely used.

As an example of the variation as described above, FIG. 18 shows no printing. The bonding of the pair of panels S11 and S12 of substantially the same size of the frame P. The adhesive layer R1 is formed on the panel S11, and the adhesive layer inducing portion RG is formed on the panel S11. Both panels S12 are on. When the adhesion layer inducing portion RG is formed on both the panel S11 and the panel S12 in this manner, the adhesive layer R1 can be induced to the four corners of both the panel S11 and the panel S12 even if the adhesive layer R1 is formed only on the liquid crystal panel S11. Thereby, peeling of a product can be made more difficult. In addition, in FIG. 18, in order to facilitate understanding, the adhesion layer R1 of the panel S11 and the adhesion layer induction part RG are shown independently, but actually, the adhesion layer R1 is induced by the adhesion layer induction part RG and is integrated with the panel S12. .

(8) Moreover, a pair of workpieces that are attached to each other can be either one piece or more A laminate of sheets. A touch panel, a protective panel, a composite panel, or the like may be further bonded to a laminate in which a display panel, a drive circuit, and a printed substrate are bonded. In other words, the number of stacked workpieces stacked in the display device member L is not limited to a specific number.

(9) In the above embodiment, the workpiece is a rectangular shape, and thus The adhesive layer R1 is applied in a rectangular shape, but the adhesive layer R1 may be formed into a circular shape or a polygonal shape depending on the shape of the workpiece. Further, the supply position of the imprinting adhesive R10 can be appropriately determined according to the shape of the workpiece to be bonded to the adhesive layer R1 so that no gap is formed between the adhesive layer R1 and the opposing workpiece. For example, in the case of the triangular, pentagonal or hexagonal adhesive layer R1, the imprinting adhesive R10 may be supplied to the respective corners. Further, for example, in the case of the circular adhesive layer R1, the imprinting adhesive R10 may be supplied over the entire circumference of the edge portion.

(10) In the embodiment, the inside of the chamber 21 of the bonding device 2 is advanced. The pressure is reduced and the pressure is applied under vacuum, but it may be bonded under the atmosphere. In these cases, it is not necessary to provide a member required to form a sealed and decompressed space, so that the apparatus can be constructed at a lower cost, and the display panel can be manufactured at low cost.

(11) Although the case where the temporary curing is performed in the second embodiment has been described, the present invention is not limited to the second embodiment, and in other embodiments, the temporary curing treatment may be performed. Of course, in any of the embodiments, temporary curing is not necessary, and may be appropriately carried out in consideration of the viscosity of the adhesive to be used and the like.

Further, in the above-described embodiment, for example, as shown in FIG. 10(A), FIG. 10(B) or FIG. 13(A), FIG. 13(B), and FIG. 13(C), the liquid crystal panel S1 having a small size is substantially An example in which the adhesive layer R1 is provided on the entire surface has been described. However, when the adhesive layer R1 is provided on the cover panel S2 having a large size, it is a matter of course that the cover panel S2 is provided in a planar manner and attached to the liquid crystal panel. The size of S1 corresponds to the size of the adhesive layer R1.

1‧‧‧Binder coating device

2‧‧‧Fitting device

3‧‧‧Curing device

4‧‧‧Transporting device

5‧‧‧ camera

6‧‧‧Adhesive layer induction forming device

7‧‧‧Control device

40‧‧‧Conveyor

100‧‧‧Manufacturing device for display device

200‧‧‧Loader

300‧‧‧ Unloader

L‧‧‧Components for display devices

S1‧‧‧ LCD panel

S2‧‧‧ Cover panel

Claims (14)

A manufacturing apparatus for a member for a display device, wherein a pair of workpieces constituting the display device are attached via an adhesive, the manufacturing device for the member for a display device comprising: a coating device, at least at least a pair of workpieces One of the adhesive layers is applied in a planar form to form an adhesive layer; the adhesive layer inducing portion forming means forms an adhesive layer inducing portion on at least one of the pair of workpieces; and a bonding device is formed therein The adhesive layer on one workpiece contacts another workpiece to fit the pair of workpieces, and the adhesive layer inducing portion will form the adhesive layer on one of the workpieces in the bonding device At least a portion of the rim is induced to a position of contact with another workpiece. The apparatus for manufacturing a member for a display device according to claim 1, further comprising: an image pickup device that images the pair of workpieces, wherein the adhesive layer inducing portion forming device is based on the one photographed by the image pickup device The adhesive layer inducing portion is formed on at least one of the pair of workpieces with respect to an image of the workpiece. The apparatus for manufacturing a member for a display device according to claim 2, further comprising: a conveying device that conveys the one between the coating device and the bonding device In the workpiece, the imaging device and the adhesion layer inducing portion forming device are provided adjacent to the conveying device, and the bonding device performs the image based on the images of the pair of workpieces captured by the imaging device. The alignment of a pair of workpieces. The manufacturing apparatus for a member for a display device according to claim 1, wherein the adhesive layer inducing portion forming device is disposed in a front portion of the coating device, and the coating layer is to be coated before the bonding layer is formed. The adhesive layer inducing portion is formed on the workpiece of the adhesive. The manufacturing apparatus for a member for a display device according to claim 4, further comprising: an illuminating device disposed in a rear portion of the coating device to temporarily cure the adhesive by irradiating energy, the pair of the illuminating device The workpiece formed with the adhesion layer inducing portion and the adhesive layer illuminates the energy. The apparatus for manufacturing a member for a display device according to any one of claims 1 to 5, wherein the adhesive layer inducing portion is formed of an adhesive material. The apparatus for manufacturing a member for a display device according to any one of claims 1 to 6, wherein the adhesive layer inducing portion is formed of the same adhesive as the adhesive forming the adhesive layer. . Display device according to any one of claims 1 to 6 A manufacturing apparatus for a member for use, wherein the adhesive layer inducing portion is formed of a binder having a lower viscosity than a binder forming the adhesive layer. The manufacturing apparatus for a member for a display device according to any one of claims 1 to 8, wherein the adhesive layer inducing portion forming device includes: a transfer device that presses and transfers the adhesive to the coating surface. The manufacturing apparatus for a member for a display device according to any one of the preceding claims, wherein the adhesive layer inducing portion forming device forms an adhesion layer inducing portion by changing a roughness of a surface of the workpiece. . The manufacturing apparatus for a member for a display device according to any one of claims 1 to 5, wherein the adhesive layer inducing portion forming device forms an adhesive layer inducing portion by changing an active state of a surface of the workpiece . The apparatus for manufacturing a member for a display device according to any one of the preceding claims, wherein the pair of workpieces have a first workpiece and a second workpiece on a surface of the second workpiece Forming a polygonal inner frame, the coating device forming the adhesive layer having a similar shape and the same size as the inner frame on the first workpiece, and the bonding layer in the bonding device The pair of workpieces are bonded to the inner frame, and the adhesive layer inducing portion forming device forms an adhesive layer inducing portion on at least a part of an edge portion of the inner frame of the second workpiece, The adhesive layer inducing portion induces at least a portion of the edge portion of the adhesive layer to reach the edge portion of the inner frame at the time of bonding. The apparatus for manufacturing a member for a display device according to claim 12, wherein the pair of workpieces have a first workpiece and a second workpiece, and a polygonal inner frame is formed on a surface of the second workpiece, The coating device forms the adhesive layer having a similar shape and the same size as the inner frame on the first workpiece, and each corner of the adhesive layer has a curved shape after coating, and in the bonding device, The adhesive layer is formed in the inner frame to fit the pair of workpieces, and the adhesive layer inducing portion forming device forms an adhesive layer inducing portion at each corner of the inner frame of the second workpiece. The adhesive layer inducing portion induces each corner of the adhesive layer to reach each corner of the inner frame at the time of bonding. A method for manufacturing a member for a display device, wherein a pair of workpieces constituting a display device are bonded via an adhesive, the method for manufacturing a member for a display device, comprising: a coating process, at least one of the pair of workpieces Applying the adhesive to form an adhesive layer in a planar shape; forming an adhesion layer inducing portion forming treatment to form an adhesive layer inducing portion on at least one of the pair of workpieces; and bonding treatment to form one of them The adhesive layer on the workpiece contacts the other workpiece to adhere the pair of workpieces, and the adhesive layer inducing portion will form the edge of the adhesive layer on one of the workpieces in the bonding process At least a portion of the portion is induced to contact with another workpiece position.