KR102300081B1 - Bonding appratus and method of manufacturing curved display device using the same - Google Patents

Abstract

A bonding device and a method for manufacturing a curved display device using the same are provided.
In one example, the bonding apparatus includes a stage for supporting a cover window including a first curved portion and a flat portion that are continuous to each other; a support member disposed on the stage and configured to support a panel member including a part and a part different from the cover window to face the cover window; and a pressing member disposed on the support member, wherein the pressing member is configured to press the support member by blowing a first air to attach a portion of the panel member to the first curved portion of the cover window. an air spraying part; and a pressing part connected to one side of the air spraying part and configured to attach the other part of the panel member to the flat part of the cover window by contacting the support member and pressing the support member.

Description

Cementation device and manufacturing method of a curved display device using the same

The present invention relates to a bonding device and a method for manufacturing a curved display device using the same.

BACKGROUND Electronic devices such as mobile communication terminals, digital cameras, notebook computers, monitors, and televisions include display devices for displaying images. The display device includes a display panel that generates and displays an image, and a cover window disposed on the display panel to protect the display panel.

Recently, as the shapes of electronic devices are diversified, display devices having various shapes have been developed. For example, a curved display device in which at least a portion of which is formed with a curved portion is being developed to match the shape of an electronic device in which the curved portion is formed on at least a portion.

Meanwhile, the curved display device may be manufactured by bonding a display panel formed of a flexible material to a cover window formed of a hard material and having a curved portion formed on at least a portion of the cover window by using a pressing member such as a pressing bar.

However, when a display panel formed of a flexible material is attached to the curved portion of the cover window formed of a rigid material, the pressing member applies pressure to the display panel while rotating on the curved portion of the cover window, so that the display panel is displayed on the curved portion of the cover window. It may not be easy to attach the panels. In this case, air bubbles may be generated between the display panel and the cover window.

The above air bubbles may cause stains on the curved display device, thereby degrading display quality.

Accordingly, an object of the present invention is to provide a bonding device capable of realizing a curved display device in which display quality is improved by reducing the generation of air bubbles therein, and a method of manufacturing the curved display device using the same.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A bonding apparatus according to an embodiment of the present invention for achieving the above object includes: a stage for supporting a cover window including a first curved portion and a flat portion that are continuous with each other; a support member disposed on the stage and configured to support a panel member including a part and a part different from the cover window to face the cover window; and a pressing member disposed on the support member, wherein the pressing member is configured to press the support member by blowing a first air to attach a portion of the panel member to the first curved portion of the cover window. an air spraying part; and a pressing part connected to one side of the air spraying part and configured to attach the other part of the panel member to the flat part of the cover window by contacting the support member and pressing the support member.

The pressing member may further include a main body, and the air jetting unit may extend from one side of the main body to a narrower width, and may include one side and the other side.

The air injection unit may include a first air injection hole formed on the one side and providing a passage through which the first air is injected in the direction of the support member.

The pressing member may further include a first air supply hole formed inside the main body and extending into the air spraying part to be connected to the first air spraying hole.

In addition, the bonding device may further include a first elastic member installed in the air spraying unit to overlap the first air spraying hole and configured to protrude toward the support member by spraying the first air.

The first elastic member may be installed in a flat shape or a shape protruding toward the support member in the air jetting part.

The cover window may further include a second curved portion positioned between the first curved portion and the flat portion and overlapping the first curved portion.

The cover window may further include a second curved portion connected to the flat portion, and the air spraying portion sprays second air from a portion different from the portion to which the first air is sprayed and presses the support member. It may be configured to attach another portion to the second curved portion.

The cover window includes a second curved portion positioned between the first curved portion and the flat portion and overlapping the first curved portion, and a third curved portion symmetrical to the second curved portion connected to the flat portion. and a fourth curved portion connected to the third curved portion and overlapping the third curved portion, wherein the air spraying unit sprays second air from a portion different from the portion to which the first air is sprayed to support the support and may be configured to attach another portion of the panel member to the fourth curved portion by pressing the member.

The air injection part is formed on one side of the first air injection hole providing a passage through which the first air is injected in the direction of the support member, and is formed on the other side and the second air is injected in the direction of the support member. It may include a second air injection hole that provides a passage.

The pressing member includes a first air supply hole formed in the body part and extending into the air injection part to be connected to the first air injection hole, and formed in the body part and connected to the second air injection hole. It may further include a second air supply hole extending to the inside of the air injection unit.

In addition, the bonding device includes a first elastic member installed in the air spraying unit to overlap the first air spraying hole and configured to protrude toward the support member by spraying the first air, and the second air spraying hole. It may further include a second elastic member installed in the air spraying portion to overlap with the second elastic member configured to protrude in the direction of the support member by the injection of the second air.

Each of the first elastic member and the second elastic member may be installed in a flat shape or a shape protruding in the support direction to the air injection unit.

The panel member may be a flexible touch panel or a display panel.

According to an embodiment of the present invention, there is provided a method of manufacturing a curved display device using a bonding device, the method comprising: seating a cover window including a first curved portion and a flat portion continuous with each other on a stage; A support member for supporting a panel member including a portion and a different portion to face the cover window is disposed on the upper portion of the stage, and a pressing member including an air spraying part and a pressing part connected to one side of the air spraying part is formed as the support member placing on top of the; attaching a portion of the panel member to the first curved portion of the cover window by pressing the support member with the pressure of the first air injected from the air spraying unit; and pressing the supporting member with a pressing pressure of the pressing unit in contact with the supporting member to attach another portion of the panel member to the flat portion of the cover window.

The step of attaching a portion of the panel member to the first curved portion of the cover window may include using the pressing portion so that another portion of the panel member is in close contact with a portion adjacent to the first curved portion of the flat portion of the cover window. A process of applying a pressing pressure to the support member, adjusting the rotation of the pressing member so that a first air spray hole formed on one side of the air spray unit faces the first curved portion of the cover window with the support member interposed therebetween process; and injecting the first air toward the support member through the first air injection hole.

The pressing member may further include a first elastic member installed in the air spraying unit to overlap the first air spraying hole and configured to protrude toward the support member by spraying the first air.

The cover window may further include a second curved portion connected to the flat portion, and in the manufacturing method of the curved display device, the support is performed by the pressure of the second air sprayed from a portion different from the portion from which the first air is sprayed. The method may further include attaching another portion of the panel member to the second curved portion of the cover window by pressing the member.

The panel member may be a flexible touch panel or a display panel.

The details of other embodiments are included in the detailed description and drawings.

According to the embodiments of the present invention, there are at least the following effects.

The bonding apparatus according to an embodiment of the present invention may include a pressing member including an air spraying unit, thereby facilitating bonding between the curved portion of the cover window and a portion of the panel member.

Accordingly, the bonding apparatus according to an embodiment of the present invention can reduce the generation of air bubbles between the panel member and the cover window including the curved portion, thereby realizing a curved display device with improved display quality.

The effect according to the present invention is not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a block diagram of a bonding apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view of the stage and cover window of FIG. 1 ;
3 is a perspective view of the pressing member of FIG. 1 ;
FIG. 4 is a cross-sectional view taken along line II′ of FIG. 3 .
5 to 10 are diagrams illustrating a method of manufacturing a curved display device using the bonding apparatus of FIG. 1 .
11 to 13 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 1 .
14 is a block diagram of a bonding apparatus according to another embodiment of the present invention.
15 is a perspective view of the stage and cover window of FIG. 14 ;
16 is a perspective view of the pressing member of FIG. 14 ;
17 is a cross-sectional view taken along line II-II' of FIG. 16 .
18 and 19 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 14 .
FIG. 20 is a diagram illustrating a method of manufacturing another curved display device using the bonding device of FIG. 14 .
21 is a block diagram of a bonding apparatus according to another embodiment of the present invention.
22 is a perspective view of the pressing member and the first elastic member of FIG. 21 .
23 is a cross-sectional view taken along line III-III' of FIG. 22 .
24 is an enlarged cross-sectional view of part 'A' of FIG. 23 .
25 is a cross-sectional view illustrating another example of the first elastic member of FIG. 23 .
26 and 27 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 21 .
28 to 30 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 21 .
31 is a block diagram of a bonding apparatus according to another embodiment of the present invention.
32 is a perspective view of the pressing member, the first elastic member, and the second elastic member of FIG. 31 ;
FIG. 33 is a cross-sectional view taken along line IV-IV' of FIG. 32 .
34 and 35 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 31 .
FIG. 36 is a diagram illustrating a method of manufacturing another curved display device using the bonding device of FIG. 31 .

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

Reference to an element or layer “on” another element or layer includes any intervening layer or other element directly on or in the middle of another element. Like reference numerals refer to like elements throughout.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

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

1 is a block diagram of a bonding apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of the stage and the cover window of FIG. 1 , FIG. 3 is a perspective view of the pressing member of FIG. 1 , and FIG. II' is a cross section of the line.

1 to 4 , the bonding apparatus 100 according to an embodiment of the present invention includes a stage 110 , a support member 122 , a pressing member 130 , a moving driving unit 160 , and a pressing driving unit 170 . ), an air supply unit 180 and a control unit 190 may be included. The bonding apparatus 100 is used to bond the panel member PM and the cover window W to each other.

The stage 110 is configured to support the cover window (W). The upper surface of the stage 110 may have a shape corresponding to the shape of the lower surface of the cover window W, and may include, for example, a curved surface and a flat surface. The stage 110 may include a vacuum suction hole (not shown) for fixing the cover window W by vacuum suction.

The cover window W may be formed of a hard material, for example, glass or plastic. The cover window W may protect a display panel that displays an image in a display device such as an organic light emitting diode display or a liquid crystal display from external impact, and has a shape corresponding to a curved display device including a curved part at least in part. can have have. For example, in FIG. 1 , the cover window W is illustrated as including a first curved portion W1 including a curved surface, and a flat portion W2 continuous with the first curved portion W1 and including a flat surface. However, this configuration is not limited to the cover window (W).

The support member 122 is disposed on the stage 110 and is configured to support the panel member PM to face the cover window W. For example, the support member 122 may be formed of a flexible support in which an adhesive is applied to a surface opposite to the cover window W. The adhesive may temporarily fix the panel member PM to the support member 122 and may be separated when the panel member PM is attached to the cover window W by the adhesive film AF. AF) has a lower adhesive strength than the adhesive strength. The adhesive film AF is disposed on a surface of the panel member PM facing the cover window W. The adhesive film AF attaches the panel member PM to the cover window W, and may be a film such as an optical clear adhesive (OCA).

The panel member PM may be at least one of a touch panel and a display panel. The touch panel and the display panel may be formed of a flexible material, for example, a flexible plastic material. In FIG. 1 , the panel member PM is illustrated as a flexible display panel. The panel member PM may include a continuous first portion PM1 and a second portion PM2 . The first part PM1 and the second part PM2 of the panel member PM may be defined as parts to be attached to the first curved part W1 and the flat part W2 of the cover window W.

The pressing member 130 is disposed on the stage 110 . The pressing member 130 sprays the first air to a portion of the support member 122 to apply the first air pressure to the first portion PM1 of the panel member PM and the first curved portion W1 of the cover window W. ), and the second part PM2 of the panel member PM by pressing pressure due to direct contact with the other part of the support member 122 while moving horizontally to one side, the flat part W2 of the cover window W configured to be attached to The pressing member 130 may be formed of an aluminum material, but is not limited thereto. As shown in FIGS. 3 and 4 , the pressing member 130 may include a body part 131 , an air injection part 132 , a pressing part 133 , and a first air supply hole 134 .

The body portion 131 may have a substantially rectangular parallelepiped shape as the body of the pressing member 120 , but is not limited thereto.

The air injection part 132 may be connected to one side of the body part 131 and may be formed to extend from one side of the body part 131 in a narrower shape. The air injection unit 132 may include a first air injection hole 132a.

The first air injection hole 132a may be formed in one side OS1 of the air injection unit 132 . The first air injection hole 132a provides a passage for injecting the first air supplied through the first air supply hole 134 to the outside of the one side OS1 of the air injection unit 132 . The first air may be a gas such as clean dry air, nitrogen (N ₂ ), or carbon dioxide (CO _{2 ).}

The air injection unit 132 injects the first air to the outside of one side OS1 of the air injection unit 132 through the first air injection hole 132a to press a portion of the support member 122 , thereby pressurizing the air injection unit 132 . The first portion PM1 of the panel member PM may be attached to the first curved portion W1 of the cover window W without rotating the member 130 . Accordingly, it may be easy to attach the first portion PM1 of the panel member PM to the first curved portion W1 of the cover window W.

The pressing part 133 may be connected to one side of the air jetting part 132 and may be formed to extend from one side of the air jetting part 132 in a narrower shape. The pressing part 133 may directly press the other part of the support member 122 to attach the second part PM2 of the panel member PM to the flat part W2 of the cover window W.

The first air supply hole 134 is disposed inside the main body 131 , and extends to the inside of the air injection unit 132 to be connected to the first air injection hole 132a. The first air supply hole 134 is a passage for supplying the first air to the air injection unit 132 , specifically, the first air injection hole 132a.

The movement driving unit 160 may be connected to the main body 131 , and drives a horizontal movement operation, a vertical movement operation, and a rotation movement operation of the pressing member 130 . The movement driving unit 160 may be configured as a motor, etc., but any configuration that enables horizontal movement, vertical movement, and rotational movement of the pressing member 160 may be used.

The pressing driving unit 170 may be connected to the main body 131 and driving the pressing operation of the pressing unit 133 . The pressing driving unit 170 may be configured as a motor or the like, but any configuration that enables the pressing operation of the pressing unit 133 may be used.

The air supply unit 180 may be connected to the body unit 131 , and supplies first air to the first air supply hole 134 and one side of the air injection unit 132 through the first air injection hole 132a. (OS1) Let the first air be injected to the outside. The air supply unit 180 may be configured as an air pump or the like, but any configuration capable of supplying the first air through the first air supply hole 134 may be used.

The control unit 190 controls driving of the movement driving unit 160 , the pressing driving unit 170 , and the air supply unit 180 .

For example, when attaching the first portion PM1 of the panel member PM to the first curved portion W1 of the cover window W, the controller 190 controls the pressing driving unit 170 to control the pressing portion ( 133) presses the support member 122 on the boundary portion between the first curved portion W1 and the flat portion W2 of the cover window W, and controls the moving driving unit 160 to control the first air injection hole 132a ) rotates the pressing member 130 to face the first curved portion W1 of the cover window W with the support member 122 interposed therebetween, and controls the air supply unit 180 to control the air injection unit 132 . By injecting the first air to the outside of the one side OS1 of the panel member PM by pressing a portion of the support member 122 with the first air pressure, the first portion PM1 of the panel member PM is formed on the first curved surface of the cover window W It can be attached to the part W1.

In addition, when the second part PM2 of the panel member PM is attached to the flat part W2 of the cover window W, the controller 190 controls the movement driving unit 160 and the pressing driving unit 170 to pressurize it. While the member 130 horizontally moves in one direction, the pressing part 133 presses the other part of the support member 122 with a pressing pressure to press the second part PM2 of the panel member PM to the plane of the cover window W. It can be attached to the part W2.

The controller 190 may be implemented as a computer or a similar device using hardware, software, or a combination thereof.

As described above, the bonding apparatus 100 according to an embodiment of the present invention includes the pressing member 130 including the air spraying part 132 having the first air spraying hole 132a, so that the cover window (W) is provided. It may be easy to attach the first portion PM1 of the panel member PM to the first curved portion W1 of the .

Therefore, the bonding apparatus 100 according to an embodiment of the present invention prevents bubbles from being generated between the cover window W including the first curved portion W1 and the flat portion W2 and the panel member PM. As a result, a curved display device having improved display quality may be realized.

Next, a method of manufacturing the curved display device using the bonding device 100 of FIG. 1 will be described.

5 to 10 are diagrams illustrating a method of manufacturing a curved display device using the bonding apparatus of FIG. 1 .

First, referring to FIG. 5 , the cover window W including the first curved portion W1 and the flat portion W2 is seated on the stage 110 . In this case, the upper surface of the stage 110 may have the same shape as the upper and lower surfaces of the cover window W. Although not shown, the stage 110 may include a vacuum suction hole (not shown) for fixing the cover window W by vacuum suction.

Next, referring to FIG. 6 , a support member 122 for supporting the panel member PM to face the cover window W is disposed on the upper portion of the stage 110 , and a pressing member is disposed on the upper portion of the support member 122 . (130) is placed. In this case, the adhesive film AF is disposed on a surface of the panel member PM facing the cover window W.

Then, referring to FIGS. 7 and 8 , the first part PM1 of the panel member PM is applied by using the first air pressure of the first air sprayed from the air jetting unit 132 of the pressing member 130 . It is attached to the first curved portion W1 of the cover window W.

Specifically, as shown in FIG. 7 , a first portion of the second portion PM2 of the panel member PM is located at a portion adjacent to the first curved portion W1 of the flat portion W2 of the cover window W. Pressing pressure is applied to the support member 122 using the pressing part 133 so that the portion adjacent to PM1 is in close contact with the cover window ( The rotation of the pressing member 130 is adjusted to face the first curved portion W1 of W). The pressing pressure by the pressing part 133 may be, for example, 0.15 Mpa.

After that, as shown in FIG. 8 , when the first air is injected through the first air injection hole 132a, the first air pressure by the first air is applied to the support member 122 to form the adhesive film AF. The first portion PM1 of the panel member PM is attached to the first curved portion W1 of the cover window W through the . The first air pressure of the first air injected through the first air injection hole 132a may be 0.3 Mpa to 1 Mpa, and may be applied to the support member 122 for about 60 seconds.

Next, referring to FIGS. 9 and 10 , the second part PM2 of the panel member PM is applied to the flat part W2 of the cover window W by using the pressing part 133 of the pressing member 130 . attach it

Specifically, referring to FIG. 9 , the angle between the cover window W and the pressing part 133 at the boundary between the first curved portion W1 and the flat portion W2 of the cover cover window W is a predetermined angle, For example, the second portion PM2 of the panel member PM by adjusting the rotation of the pressing member 130 to be 45° to 90°, and applying pressing pressure to the supporting member 122 using the pressing portion 133 . Start to attach to the flat portion (W2) of the cover window (W).

Thereafter, referring to FIG. 10 , the pressing unit 133 continuously horizontally moves in one direction by the driving of the moving driving unit 160 and the driving of the pressing driving unit 170 while applying a pressing pressure to the support member 122 to apply a pressing pressure to the panel. Attaching the second portion PM2 of the member PM to the flat portion W2 of the cover window W is completed.

Next, a method of manufacturing another curved display device using the bonding device 100 of FIG. 1 will be described.

11 to 13 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 1 .

Referring to FIG. 11 , the cover window W10 including the continuous first curved portion W11 , the second curved portion W12 , and the flat portion W13 is seated on the stage 110 . The cover window W10 is similar and different from the cover window W of FIG. 5 only in that it includes two curved portions on one side of the flat portion W13. Here, the second curved portion W12 of the cover window W10 may overlap the first curved portion W11 and, for example, may have an approximately 'C' shape.

Then, the support member 122 supporting the panel member PM10 to face the cover window W10 is disposed on the stage 110 , and the pressing member 130 is disposed on the support member 122 . . In this case, the adhesive film AF10 is disposed on a surface of the panel member PM10 facing the cover window W10 . The panel member PM10 is similar to and different from the panel member PM of FIG. 6 only in that it has a longer length. In addition, the adhesive film AF10 is similar and different from the adhesive member AF of FIG. 6 only in that it has a longer length corresponding to the length of the panel member PM10 .

Then, referring to FIGS. 12 and 13 , the first part PM11 of the panel member PM10 is covered by using the first air pressure of the first air sprayed from the air jetting unit 132 of the pressing member 130 . It is attached to the first curved portion W11 of the window W10.

Specifically, as shown in FIG. 12 , the pressing part ( 133) to apply a pressing pressure to the support member 122, so that the first air injection hole 132a faces the first curved portion W11 of the cover window W10 with the support member 122 interposed therebetween. The rotation of the pressing member 130 is adjusted. The pressing pressure by the pressing part 133 may be, for example, 0.15 Mpa.

Thereafter, as shown in FIG. 13 , when the first air is sprayed through the first air injection hole 132a , the first air pressure by the first air is applied to the support member 122 , so that the adhesive film AF10 is applied to the support member 122 . The first portion PM11 of the panel member PM10 is attached to the first curved portion W11 of the cover window W10 through the . The first air pressure of the first air injected through the first air injection hole 132a may be 0.3 Mpa to 1 Mpa, and may be applied to the support member 122 for about 60 seconds.

Subsequently, although not shown, the second part PM12 and the third part PM13 that are the remaining parts of the panel member PM10 using the pressing part 133 of the pressing member 130 in the same manner as in FIGS. 9 and 10 . ) is attached to the second curved portion W12 and the flat portion W13 of the cover window W10.

On the other hand, the first air pressure of the first air injected from the air injection unit 132 of the pressing member 130 is applied to the first portion PM11 of the panel member PM10 and the first curved portion (W10) of the cover window W10. Although described as being used to attach to the W11 , it may be used to attach the second portion PM12 of the panel member PM10 to the second curved portion W12 of the cover window W10 .

Next, a bonding apparatus 200 according to another embodiment of the present invention will be described.

14 is a block diagram of a bonding apparatus according to another embodiment of the present invention, FIG. 15 is a perspective view of the stage and cover window of FIG. 14 , FIG. 16 is a perspective view of the pressing member of FIG. 14 , and FIG. II-II' is a cross-section of the line.

14 to 17 , the bonding apparatus 200 according to another embodiment of the present invention has the same configuration as the bonding apparatus 100 of FIG. 1 except that only the stage 210 and the pressing member 230 are different. have Accordingly, the bonding apparatus 200 according to another embodiment of the present invention will be mainly described with respect to the stage 210 and the pressing member 230 .

The bonding apparatus 200 according to another embodiment of the present invention includes a stage 210 , a supporting member 122 , a pressing member 230 , a moving driving unit 160 , a pressing driving unit 170 , an air supplying unit 180 , and a control unit. (190). The bonding device 200 is used to bond the panel member PM20 and the cover window W20 together.

Stage 210 is similar to stage 110 of FIG. 1 . However, the upper surface of the stage 210 includes a first curved surface, a flat surface, and a second curved surface to correspond to the shape of the lower surface of the cover window W20 .

The cover window W20 is similar to the cover window W of FIG. 1 . However, the cover window W20 includes a first curved portion W21 including a curved surface, a flat portion W22 continuous with the first curved portion W21 and including a flat surface, and continuous with a flat portion W22. It may include a second curved portion W23 including a curved surface. The first curved portion W21 and the second curved portion W23 may be symmetrical with respect to the center of the flat portion W22 .

Meanwhile, the panel member PM20 supported by the support member 122 is similar to the panel member PM of FIG. 1 . However, the panel member PM20 may have a length corresponding to that of the cover window W20 and may include a continuous first portion PM21 , a second portion PM22 , and a third portion PM23 . That is, the first portion PM21 , the second portion PM22 , and the third portion PM23 of the panel member PM20 include the first curved portion W21 , the flat portion W22 , and the second portion PM23 of the cover window W20 . 2 It may be defined as portions to be attached to the curved portion W23.

Also, the adhesive film AF20 is similar to the adhesive film AF of FIG. 1 . However, the adhesive film AF20 may have a length corresponding to the length of the panel member PM20 .

The pressing member 230 is similar to the pressing member 130 of FIG. 1 . However, the pressing member 230 injects the first air to a portion of the support member 122 to apply the first air pressure to the first portion PM21 of the panel member PM20 to the first curved portion of the cover window W. The second part PM22 of the panel member PM20 is attached to the W21, and the second part PM22 of the panel member PM20 is pressed against the other part of the support member 122 while moving horizontally to one side. The second curved portion of the cover window W20 is attached to the W22, and the third portion PM23 of the panel member PM20 is attached to another portion of the support member 122 by spraying the second air to another portion of the support member 122 by the second air pressure. (W23) is configured to be attached. As shown in FIGS. 16 and 17 , the pressing member 230 includes a body part 131 , an air injection part 232 , a pressing part 133 , and a first air supply hole 134 , and a second air supply hole. (234).

The body part 131 of the pressing member 230, the pressing part 133, and the first air supply hole 134 are the body part 131 of the pressing member 130 shown in FIGS. 3 and 4, the pressing part ( 133) and the first air supply hole 134, the overlapping description will be omitted.

The air injection unit 232 is similar to the air injection unit 132 of FIGS. 3 and 4 . However, the air injection unit 232 includes a first air injection hole 132a and a second air injection hole 232a.

The first air injection hole 132a of the air injection unit 232 is the same as the first air injection hole 132a of the air injection unit 132 illustrated in FIGS. 3 and 4 , and the first air supply hole 134 . ) to provide a passage for injecting the first air supplied through the one side OS1 of the air injection unit 232 to the outside.

The second air injection hole 232a may be formed in the other side OS2 of the air injection unit 232 . The second air injection hole 232a provides a passage for injecting the second air supplied through the second air supply hole 234 to the outside of the other side OS2 of the air injection unit 232 . The second air may be a gas such as clean dry air, nitrogen (N ₂ ), or carbon dioxide (CO _{2 ).}

The air injection unit 232 injects the first air to the outside of one side OS1 of the air injection unit 232 through the first air injection hole 132a to press a portion of the support member 122, and 2 By injecting the second air to the outside of the other side OS2 of the air injection part 232 through the air injection hole 232a to press another part of the support member 122, the pressing member 230 is not rotated. The first portion PM21 of the panel member PM20 may be attached to the first curved portion W21 of the cover window W20 without may be attached to the second curved portion W23 of Accordingly, it may be easy to attach the first portion PM21 and the third portion PM23 of the panel member PM20 to the first curved portion W21 and the second curved portion W23 of the cover window W20. can

The second air supply hole 234 is disposed inside the main body 131 and extends to the inside of the air injection unit 232 to be connected to the second air injection hole 232a. The second air supply hole 234 is a passage for supplying the second air to the air injection unit 232 , specifically, the second air injection hole 232a.

On the other hand, the moving driving unit 160, the pressing driving unit 170, and the air supplying unit 180 of the bonding apparatus 200 according to another embodiment of the present invention are the moving driving unit 160 and pressing of the bonding apparatus 100 of FIG. 1 . The driving unit 170 and the air supply unit 180 are similar. However, the moving driving unit 160 , the pressing driving unit 170 , and the air supplying unit 180 of the bonding apparatus 200 according to another embodiment of the present invention uses the pressing member 230 to the third portion of the panel member PM20 . It may be configured to include a driving required to attach the PM23 to the second curved portion W23 of the cover window W20. For example, the air supply unit 180 of the bonding apparatus 200 according to another embodiment of the present invention supplies the second air to the second air supply hole 234, and the air through the second air injection hole 232a. The second air is injected to the outside of the other side OS2 of the injection unit 232 .

Also, the control unit 190 of the bonding apparatus 200 according to another embodiment of the present invention is similar to the control unit 190 of the bonding apparatus 100 of FIG. 1 . However, the controller 190 of the bonding apparatus 200 according to another embodiment of the present invention uses the pressing member 230 to move the third part PM23 of the panel member PM20 to the second part of the cover window W20. Includes control over the driving required to attach to the curved portion W23.

For example, the control unit 190 of the bonding apparatus 200 according to another embodiment of the present invention moves the third portion PM23 of the panel member PM20 to the second curved portion W23 of the cover window W20. At the time of attachment, by controlling the driving of the pressing driving unit 170, the pressing unit 133 presses the support member 122 on the boundary between the second curved portion W23 and the flat portion W22 of the cover window W20, and , by controlling the rotational movement of the movement driving unit 160 so that the second air injection hole 232a faces the second curved portion W23 of the cover window W20 with the support member 122 interposed therebetween, and the air supply unit Control 180 to inject the second air to the outside of the other side OS2 of the air injection unit 232 to press another portion of the support member 122 with the second air pressure to the third of the panel member PM20 The portion PM23 is attached to the second curved portion W23 of the cover window W20.

As described above, the bonding apparatus 200 according to another embodiment of the present invention has a pressing member 230 including an air spraying part 232 having a first air spraying hole 132a and a second air spraying hole 232a. By including, it is easy to attach the first portion PM21 and the third portion PM23 of the panel member PM20 to the first curved portion W21 and the second curved portion W23 of the cover window W20 . can do it

Accordingly, the bonding apparatus 200 according to another embodiment of the present invention includes a cover window W20 and a panel member PM20 including a first curved portion W21 , a flat portion W22 , and a second curved portion W23 . ), it is possible to reduce the generation of air bubbles between them, thereby realizing a curved display device in which display quality is improved.

Next, another method of manufacturing a curved display device using the panel bonding device 200 of FIG. 14 will be described.

18 and 19 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 14 .

Attaching the first portion PM21 and the second portion PM22 of the panel member PM20 to the first curved portion W21 and the flat portion W22 of the cover window W20 using the pressing member 230 . In the method shown in FIGS. 5 to 10 , the first portion PM1 and the second portion PM2 of the panel member PM are applied to the first curved portion W1 of the cover window W using the pressing member 130 in FIGS. 5 to 10 . It is the same as the method of attaching to the flat portion W2.

Then, referring to FIGS. 18 and 19 , the third part PM23 of the panel member PM20 is removed by using the second air pressure of the second air supplied to the air injection unit 232 of the pressing member 230 . It is attached to the second curved portion W23 of the cover window W20.

Specifically, as shown in FIG. 18 , a third part of the second part PM22 of the panel member PM20 is adjacent to the second curved part W23 of the flat part W22 of the cover window W20 . A pressing pressure is applied to the support member 122 using the pressing part 133 so that the portion adjacent to the PM23 is in close contact with the cover window ( The rotation of the pressing member 230 is adjusted to face the second curved portion W23 of the W20. The pressing pressure by the pressing part 133 may be, for example, 0.15 Mpa.

Thereafter, as shown in FIG. 19 , when the second air is sprayed through the second air injection hole 232a , the second air pressure by the second air is applied to the support member 122 and the adhesive film AF20 is applied. The third portion PM23 of the panel member PM20 is attached to the second curved portion W23 of the cover window W20 through the . The second air pressure of the second air injected through the second air injection hole 232a may be 0.3 Mpa to 1 Mpa, and may be applied to the support member 122 for about 60 seconds.

Next, a method of manufacturing another curved display device using the bonding device of FIG. 14 will be described.

FIG. 20 is a diagram illustrating a method of manufacturing another curved display device using the bonding device of FIG. 14 .

Referring to FIG. 20 , a cover window including a continuous first curved portion W31 , a second curved portion W32 , a flat portion W33 , a third curved portion W34 , and a fourth curved portion W35 . (W30) is seated on the stage 210. The cover window W30 is different and similar to the cover window W of FIG. 5 only in that it includes two curved portions on one side of the flat portion W33 and two curved portions on the other side of the planar portion W33 as compared to the cover window W of FIG. 5 . Here, the second curved portion W32 of the cover window W30 may overlap the first curved portion W31 and, for example, may have an approximately 'C' shape. In addition, the fourth curved portion W35 of the cover window W30 may overlap the third portion W34 and, for example, may have an approximately 'C' shape.

Then, the support member 122 supporting the panel member PM30 to face the cover window W30 is disposed on the stage 210 , and the pressing member 230 is disposed on the support member 122 . . In this case, the adhesive film AF30 is disposed on a surface of the panel member PM30 facing the cover window W30 . The panel member PM30 is similar to and different from the panel member PM of FIG. 6 only in that it has a longer length. In addition, the adhesive film AF10 is similar to and different from the adhesive member AF of FIG. 6 only in that it has a longer length corresponding to the length of the panel member PM30 .

Subsequently, although not shown, the panel member using the first air pressure of the first air sprayed to the outside of the one side OS1 of the air injection unit 232 of the pressing member 230 in the same manner as in FIGS. 12 and 13 . The first portion PM31 of the PM30 is attached to the first curved portion W31 of the cover window W30.

Subsequently, although not shown, the second part PM32 , the third part PM33 and the The fourth portion PM34 is attached to the second curved portion W32 , the flat portion W33 , and the third curved portion W34 of the cover window W30 .

Subsequently, although not shown, the panel member using the second air pressure of the second air sprayed to the outside of the other side OS2 of the air injection unit 232 of the pressing member 230 in the same manner as in FIGS. 12 and 13 . The fifth portion PM35 of the PM30 is attached to the fourth curved portion W35 of the cover window W30.

Meanwhile, the first air pressure and the second air pressure of the first air and the second air injected from the air injection unit 232 of the pressing member 230 are the first part PM31 and the fifth air pressure of the panel member PM30 . Although it has been described that the portion PM35) is used to attach the first curved portion W31 and the fourth curved portion W34 of the cover window W30, the second portion PM32 and the fourth portion of the panel member PM30 It may be used to attach the portion PM34 to the second curved portion W32 and the third curved portion W34 of the cover window W33 .

Next, a bonding apparatus 300 according to another embodiment of the present invention will be described.

21 is a block diagram of a bonding apparatus according to another embodiment of the present invention, FIG. 22 is a perspective view of the pressing member and the first elastic member of FIG. 21, and FIG. 23 is a cross-sectional view taken along line III-III' of FIG. 24 is an enlarged cross-sectional view of part 'A' of FIG. 23 , and FIG. 25 is a cross-sectional view illustrating another example of the first elastic member of FIG. 23 .

21 to 25 , the bonding apparatus 300 according to another embodiment of the present invention has the same configuration except that only the pressing member 330 and the first elastic member 340 are different. Accordingly, in the bonding apparatus 300 according to another embodiment of the present invention, the pressing member 330 and the first elastic member 340 will be mainly described.

The bonding apparatus 300 according to another embodiment of the present invention includes a stage 110 , a support member 122 , a pressing member 330 , a first elastic member 340 , a movement driving unit 160 , and a pressing driving unit 170 . ), an air supply unit 180 and a control unit 190 may be included. The bonding device 300 is used to bond the panel member PM and the cover window W to each other.

The pressing member 330 includes a main body 131 , an air injection unit 332 , a pressing unit 133 , and a first air supply hole 134 , and the pressing member 130 shown in FIGS. 3 and 4 . similar to However, the air injection unit 332 of the pressing member 330 may include a first seating groove 332a and a first air injection hole 332b.

The first seating groove 332a may be formed on one side OS1 of the air injection unit 332 . A first stepped surface SS1 may be formed on the inner surface of the first seating groove 332a, and the first stepped surface SS1 is formed by the first elastic member 340 of the pressing member 330 of the air injection part ( 332) may provide a space to be seated.

The first air injection hole 332b may be formed in the bottom surface of the first seating groove 332a. The first air injection hole 332b provides a passage for supplying the first air supplied through the first air supply hole 134 to the first seating groove 332a.

The air injection unit 332 injects the first air into the first seating groove 332a through the first air injection hole 332b so that the first elastic member 340 presses a portion of the support member 122 . , the first portion PM1 of the panel member PM may be attached to the first curved portion W1 of the cover window W without rotating the pressing member 130 . Accordingly, surface contact efficiency between the first curved portion W1 of the cover window W and the first portion PM1 of the panel member PM may be improved, and bonding may be facilitated.

The first elastic member 340 is installed on the inner surface of the first seating groove 132a of the air injection unit 332 , specifically, on the first stepped surface SS1 . The first elastic member 340 may protrude outwardly of the air spraying part 332 by the first air sprayed from the air spraying part 332 . For example, the first elastic member 340 has a flat shape before the first air is jetted from the air jetting unit 332, and when the first air is jetted from the air jetting unit 332, the air is blown by the first air. It may protrude to the outside of the thread part 332 to have a curved shape. The first elastic member 340 may press the support member 122 to attach the first portion PM1 of the panel member PM to the first curved portion W1 of the cover window W. In some embodiments, to reduce the first air pressure of the first air injected to the first elastic member 340 in order to protrude the first elastic member 340 to the outside of the air injection unit 332, the air injection unit The first elastic member 340a having a shape that protrudes in the direction of the air jetting unit 332 before the first air is jetted from the 332 , for example, a curved shape may be used instead of the first elastic member 340 . .

The first elastic member 340 may be formed of a material that can be expanded by the first air, for example, any one of Teflon, silicone, rubber, and resin. The resin is polyethylene terephthalate (Poly Ethylene Terephthalate), polycarbonate (Poly Carbonate), polyether sulfone (Poly Ether Sulfone), fiber reinforced plastics (Fiber Reinforced Plastics), polyamide (Poly Amide), polyethylene (Poly Ethylene), It may be at least one of polyolefin (Poly Olefin), polysulfone (Poly Sulfone), polyaluminium chloride (Poly Aluminum Chloride), polymethyl methacrylate (Poly Methl Methacrylate), and polystyrene (Poly Styrene).

On the other hand, the bonding device 300 according to another embodiment of the present invention is a first adhesive 352 applied to the first stepped surface SS1 to fix the first elastic member 340 to the air spraying unit 332 . and a second adhesive 354 applied to overlap the first stepped surface SS1 on the first elastic member 340 and attached to the second adhesive 354 to overlap the first stepped surface SS1 The cover 356 being the cover 356, the cover 356, the second adhesive 354, the first elastic member 340, and the first adhesive 352 are fastened to the air injection unit 332 through the first elastic member ( A fastening member 358 capable of firmly fixing the 340 to the air jetting unit 332 may be further included. The first adhesive 352 and the second adhesive 354 may be an epoxy adhesive, the cover 356 may be formed of a stainless material, and the fastening member 358 may be a screw.

In addition, the movement driving unit 160 , the pressing driving unit 170 , the air supply unit 180 , and the control unit 190 of the bonding apparatus 300 according to another embodiment of the present invention moves the bonding apparatus 100 of FIG. 1 . It is similar to the driving unit 160 , the pressing driving unit 170 , the air supply unit 180 , and the control unit 190 . However, the air supply unit 180 and the control unit 190 of the bonding apparatus 300 according to another embodiment of the present invention can protrude the first elastic member 340 to the outside of the air injection unit 332 . It may be configured to supply first air having a first air pressure.

That is, the air supply unit 180 of the bonding device 300 may be connected to the body unit 131 , and the first air supply hole may cause the first elastic member 340 to protrude outward of the air injection unit 332 . The first air is supplied to the 134 to be injected into the first seating groove 332a through the first air injection hole 332b.

When attaching the first portion PM1 of the panel member PM to the first curved portion W1 of the cover window W, the control unit 190 of the bonding apparatus 300 controls the pressing driving unit 170 to press it. The part 133 presses the support member 122 on the boundary between the first curved part W1 and the flat part W2 of the cover window W, and controls the movement driving part 160 to control the first elastic member ( 340 rotates the pressing member 330 to face the first curved portion W1 of the cover window W with the support member 122 interposed therebetween, and controls the air supply unit 180 to control the first seating groove ( 332a), the first elastic member 340 presses a portion of the support member 122 to form the first portion PM1 of the panel member PM by spraying the first air to the first curved portion (W) of the cover window (W). to be attached to W1).

As described above, the bonding apparatus 300 according to another embodiment of the present invention includes a pressing member 330 including an air spraying part 332 having a first air spraying hole 332b and a first elastic member 340 . By providing a surface contact efficiency between the first curved portion W1 of the cover window W and the first portion PM1 of the panel member PM, it is possible to facilitate bonding while improving the surface contact efficiency.

Therefore, in the bonding apparatus 300 according to another embodiment of the present invention, air bubbles are generated between the cover window W including the first curved portion W1 and the flat portion W2 and the panel member PM. reduction, it is possible to realize a curved display device with improved display quality.

Next, a method of manufacturing a curved display device using the panel bonding device 300 of FIG. 21 will be described.

26 and 27 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 21 .

First, the cover window W including the first curved portion W1 and the flat portion W2 is seated on the stage 110 in the same manner as in FIGS. 5 and 6 , and the panel member PM is attached to the cover window ( The supporting member 122 supporting the W) is disposed on the upper portion of the stage 110 , and the pressing member 330 is disposed on the supporting member 122 .

Next, referring to FIGS. 26 and 27 , the panel member using the first elastic member 340 protruding by the first air pressure of the first air sprayed from the air jetting unit 332 of the pressing member 330 is used. The first portion PM1 of the PM is attached to the first curved portion W1 of the cover window W.

Specifically, as shown in FIG. 26 , a first portion of the second portion PM2 of the panel member PM is located at a portion adjacent to the first curved portion W1 of the flat portion W2 of the cover window W. A pressing pressure is applied to the support member 122 using the pressing part 133 so that the portion adjacent to PM1 is in close contact with the cover window W with the first elastic member 340 interposed therebetween. ) to adjust the rotation of the pressing member 130 to face the first curved portion (W1). The pressing pressure by the pressing part 133 may be, for example, 0.15 Mpa.

Thereafter, as shown in FIG. 27 , when the first elastic member 340 is protruded in the direction of the support member 122 by spraying the first air through the first air injection hole 332b, the first elastic member ( 340 is applied to the support member 122 so that the first portion PM1 of the panel member PM is attached to the first curved portion W1 of the cover window W through the adhesive film AF. . The first air pressure of the first air injected through the first air injection hole 332b may be 0.5 Mpa to 1 Mpa, and may be applied to the first elastic member 340 for about 60 seconds.

Next, in the same manner as in FIGS. 9 and 10 , the second part PM2 of the panel member PM is applied to the flat part W2 of the cover window W using the pressing part 133 of the pressing member 330 in the same manner as in FIGS. 9 and 10 . attach it

Next, a method of manufacturing another curved display device using the bonding device 300 of FIG. 21 will be described.

28 to 30 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 21 .

Referring to FIG. 28 , the cover window W10 including the continuous first curved portion W11 , the second curved portion W12 , and the flat portion W13 is seated on the stage 110 . Since the cover window W10 has been described with reference to FIG. 11 , a redundant description thereof will be omitted.

In addition, the support member 122 supporting the panel member PM10 to face the cover window W10 is disposed on the stage 110 , and the pressing member 330 is disposed on the support member 122 . . In this case, the adhesive film AF10 is disposed on a surface of the panel member PM10 facing the cover window W10 . Since the panel member PM10 and the adhesive film AF10 have been described with reference to FIG. 11 , a redundant description thereof will be omitted.

Then, referring to FIGS. 29 and 30 , the panel member PM10 using the pressing pressure of the first elastic member 340 protruding by the first air sprayed from the air jetting unit 332 of the pressing member 330 . is attached to the first curved portion W11 of the cover window W10.

Specifically, as shown in FIG. 29 , the pressing portion ( 133) is used to apply a pressing pressure to the support member 122, and the first elastic member 340 is pressed to face the first curved portion W11 of the cover window W10 with the support member 122 interposed therebetween. The rotation of the member 330 is adjusted. The pressing pressure by the pressing part 133 may be, for example, 0.15 Mpa.

Thereafter, as shown in FIG. 30 , when the first elastic member 340 is protruded in the direction of the support member 122 by spraying the first air through the first air injection hole 332b, the first elastic member ( 340 is applied to the support member 122 so that the first portion PM11 of the panel member PM10 is attached to the first curved portion W11 of the cover window W10 through the adhesive film AF10 . The first air pressure of the first air injected through the first air injection hole 332b may be 0.5 Mpa to 1 Mpa, and may be applied to the first elastic member 340 for about 60 seconds.

Next, in the same manner as in FIGS. 9 and 10 , the second part PM12 and the third part PM13 that are the remaining parts of the panel member PM10 are covered with the cover window using the pressing part 133 of the pressing member 330 in the same manner as in FIGS. 9 and 10 . It is attached to the second curved portion W12 and the flat portion W13 of (W10).

On the other hand, the pressing pressure of the first elastic member 340 protruding by the first air sprayed from the air injection unit 332 of the pressing member 330 is applied to the first portion PM11 of the panel member PM10 to cover the window. Although it has been described as being used for attaching to the first curved portion W11 of the W10, it may be used to attach the second portion PM12 of the panel member PM10 to the second curved portion W12 of the cover window W10. may be

Next, a bonding apparatus 400 according to another embodiment of the present invention will be described.

31 is a block diagram of a bonding apparatus according to another embodiment of the present invention, FIG. 32 is a perspective view of the pressing member, the first elastic member, and the second elastic member of FIG. 31 , and FIG. 33 is IV-IV of FIG. ' It is a cross-section of a line.

31 to 33 , the bonding apparatus 400 according to another embodiment of the present invention has a stage 210 , a pressing member 430 and a second elastic member compared to the bonding apparatus 300 of FIG. 21 . It has the same configuration except that (440) is different. Accordingly, the bonding apparatus 400 according to another embodiment of the present invention will be mainly described with respect to the stage 210 , the pressing member 430 , and the second elastic member 440 .

A bonding apparatus 400 according to another embodiment of the present invention includes a stage 210 , a support member 122 , a pressing member 430 , a first elastic member 340 , a second elastic member 440 , and a movement driving unit. 160 , a push driving unit 170 , an air supply unit 180 , and a control unit 190 may be included. The bonding device 400 is used to bond the panel member PM20 and the cover window W20 together.

Since the stage 210 has been described with reference to FIG. 14 , a redundant description thereof will be omitted. Meanwhile, the cover window W20 seated on the stage 210 , the panel member PM20 supported by the support member 122 disposed on the upper portion of the stage 210 , and the adhesive film attached to the panel member PM20 . (AF20) has also been described in the bonding apparatus 200 of FIG. 14, and thus a redundant description will be omitted.

The pressing member 430 includes a body portion 131 , an air injection portion 432 , a pressing portion 133 , a first air supply hole 134 , and a second air supply hole 434 , and FIGS. 22 and FIG. It is similar to the pressing member 330 shown at 23 . However, the air injection unit 432 of the pressing member 430 may include a second seating groove 432a and a second air injection hole 432b.

The second seating groove 432a may be formed on the other side OS2 of the air injection unit 432 . A second stepped surface SS2 may be formed on the inner surface of the second seating groove 432a, and the second stepped surface SS2 is formed by the second elastic member 440 of the pressing member 430 of the air injection part ( 432) may provide a space to be seated.

The second air injection hole 432b may be formed in the bottom surface of the second seating groove 432a. The second air injection hole 432b provides a passage for supplying the second air supplied through the second air supply hole 434 to the second seating groove 432a.

The air injection unit 432 injects the first air into the first seating groove 332a through the first air injection hole 332b so that the first elastic member 340 presses a portion of the support member 122 , and , by injecting the second air into the second seating groove 432a through the second air injection hole 432b so that the second elastic member 440 presses another portion of the support member 122, the pressing member 430 ) to attach the first portion PM21 and the third portion PM23 of the panel member PM20 to the first curved portion W21 and the second curved portion W23 of the cover window W20 without rotating the have. Accordingly, the surface contact efficiency between the first curved portion W21 of the cover window W20 and the first portion PM21 of the panel member PM20 and the second curved portion W23 of the cover window W20 and the panel member While the surface contact efficiency between the third portion PM23 of the PM20 is improved, the first curved portion W21 of the cover window W20 and the first portion PM21 of the panel member PM20 are joined and the cover window ( The second curved portion W23 of the W20 and the third portion PM23 of the panel member PM20 may be easily joined.

The second elastic member 440 is similar to the first elastic member 340 of FIGS. 22 and 23 . However, the second elastic member 440 is installed on the inner surface of the second seating groove 432a of the air injection unit 432 , specifically, on the second stepped surface SS2 .

On the other hand, the bonding device 400 according to another embodiment of the present invention is a first adhesive 352 applied to the second stepped surface SS2 to fix the second elastic member 440 to the air spraying unit 432 . and a second adhesive 354 applied to overlap the second stepped surface SS2 on the second elastic member 440 and attached to the second adhesive 354 to overlap the second stepped surface SS2 The cover 356 being the cover 356, the cover 356, the second adhesive 354, the second elastic member 440, and the first adhesive 352 are fastened to the air injection unit 432 through the second elastic member ( A fastening member 358 capable of firmly fixing the 440 to the air spraying unit 432 may be further included.

In addition, the moving driving unit 160, the pressing driving unit 170, and the air supplying unit 180 of the bonding apparatus 400 according to another embodiment of the present invention includes the moving driving unit 160 of the bonding apparatus 300 of FIG. It is similar to the push drive unit 170 and the air supply unit 180 . However, the air supply unit 180 and the control unit 190 of the bonding apparatus 400 according to another embodiment of the present invention can protrude the second elastic member 440 to the outside of the air injection unit 432 . It may be configured to supply a second air having a second air pressure.

That is, the air supply unit 180 of the bonding device 400 may be connected to the body unit 131 , and the second air supply hole may cause the second elastic member 440 to protrude outward of the air injection unit 432 . The second air is supplied to the 434 to be injected into the second seating groove 432a through the second air injection hole 432b.

When attaching the third portion PM23 of the panel member PM20 to the second curved portion W23 of the cover window W20, the control unit 190 of the bonding apparatus 400 controls the pressing driving unit 170 to press it. The part 133 presses the support member 122 on the boundary between the second curved part W23 and the flat part W22 of the cover window W20, and controls the movement driving part 160 to control the second elastic member ( Rotates the pressing member 430 so that the 440 faces the second curved portion W23 of the cover window W20 with the support member 122 interposed therebetween, and controls the air supply unit 180 to control the second seating groove ( 432a), the second elastic member 440 presses a portion of the support member 122 to form the third portion PM23 of the panel member PM20 by spraying the second air to the second curved portion of the cover window W20 ( W23).

As described above, the bonding apparatus 400 according to another embodiment of the present invention has a pressing member 430 including an air spraying part 432 having a first air spraying hole 332b and a second air spraying hole 432b. ), the first elastic member 340 and the second elastic member 440 are provided, so that surface contact between the first curved portion W21 of the cover window W20 and the first portion PM21 of the panel member PM20 is provided. While improving the efficiency and surface contact efficiency between the second curved portion W23 of the cover window W20 and the third portion PM23 of the panel member PM20, the first curved portion W21 of the cover window W20 and The bonding of the first portion PM21 of the panel member PM20 and the bonding of the second curved portion W23 of the cover window W20 and the third portion PM23 of the panel member PM20 may be facilitated.

Accordingly, the bonding apparatus 400 according to another embodiment of the present invention includes a cover window W20 including a first curved portion W21, a flat portion W22, and a second curved portion W23, and a panel member ( PM20), it is possible to reduce the generation of air bubbles, thereby realizing a curved display device in which display quality is improved.

Next, another method of manufacturing a curved display device using the bonding device 400 of FIG. 31 will be described.

34 and 35 are diagrams illustrating a method of manufacturing another curved display device using the bonding device of FIG. 31 .

Attaching the first portion PM21 and the second portion PM22 of the panel member PM20 to the first curved portion W21 and the flat portion W22 of the cover window W20 using the pressing member 430 . The method is performed by attaching the first portion PM1 of the panel member PM to the first curved portion W1 of the cover window W using the pressing member 330 in FIGS. 26 and 27 , and FIG. 9 and FIG. It is similar to the method of attaching the second part PM2 to the planar part W2 of the cover window W using the pressing member 130 in step 10 .

Then, referring to FIGS. 34 and 35 , the panel member using the second elastic member 440 protruding by the second air pressure of the second air sprayed to the air jetting part 432 of the pressing member 430 is used. The third portion PM23 of the PM20 is attached to the second curved portion W23 of the cover window W20.

Specifically, as shown in FIG. 34 , a third portion of the second portion PM22 of the panel member PM20 is disposed adjacent to the second curved portion W23 of the flat portion W22 of the cover window W20. A pressing pressure is applied to the support member 122 using the pressing part 133 so that the portion adjacent to the PM23 is in close contact with the second elastic member 440 with the support member 122 interposed therebetween. ) to adjust the rotation of the pressing member 430 to face the second curved portion (W23). The pressing pressure by the pressing part 133 may be, for example, 0.15 Mpa.

After that, as shown in FIG. 35 , when the second elastic member 440 is projected in the direction of the support member 122 by spraying the second air through the second air injection hole 432b, the second elastic member ( A pressing pressure by 440 is applied to the support member 122 so that the third portion PM23 of the panel member PM20 is attached to the second curved portion W23 of the cover window W20 through the adhesive film AF20. . The second air pressure of the second air injected through the second air injection hole 432b may be 0.5 Mpa to 1 Mpa, and may be applied to the second elastic member 440 for about 60 seconds.

Next, a method of manufacturing another curved display device using the bonding device 400 of FIG. 31 will be described.

FIG. 36 is a diagram illustrating a method of manufacturing another curved display device using the bonding device of FIG. 31 .

First, the cover window W30 including the continuous and continuous first curved portion W31 , the second curved portion W32 , the flat portion W33 , the third curved portion W34 and the fourth curved portion W35 . ) is seated on the stage 210 . Since the cover window W30 has been described with reference to FIG. 20 , a redundant description thereof will be omitted.

Then, the support member 122 supporting the panel member PM30 to face the cover window W30 is disposed on the stage 210 , and the pressing member 430 is disposed on the support member 122 . . In this case, the adhesive film AF30 is disposed on a surface of the panel member PM30 facing the cover window W30 . Since the panel member PM30 and the adhesive film AF30 have also been described with reference to FIG. 20 , a redundant description thereof will be omitted.

Subsequently, although not shown, by the first air pressure of the first air injected through the first air injection hole 332b of the air injection unit 432 of the pressing member 430 in the same manner as in FIGS. 29 and 30 . The first portion PM31 of the panel member PM30 is attached to the first curved portion W31 of the cover window W30 using the protruding first elastic member 340 .

Subsequently, although not illustrated, the second part PM32 , the third part PM33 and the The fourth portion PM34 is attached to the second curved portion W32 , the flat portion W33 , and the third curved portion W34 of the cover window W30 .

Subsequently, although not shown, the second air is sprayed into the second air injection hole 432b of the air injection unit 432 of the pressing member 430 in the same manner as in FIGS. 26 and 27 by the second air pressure. The fifth portion PM35 of the panel member PM30 is attached to the fourth curved portion W35 of the cover window W30 by using the second elastic member 440 that is formed.

Meanwhile, the first air pressure and the second air pressure of the first air and the second air injected from the air injection unit 432 of the pressing member 430 are the first part PM31 and the fifth air pressure of the panel member PM30 . Although it has been described that the portion PM35) is used to attach the first curved portion W31 and the fourth curved portion W34 of the cover window W30, the second portion PM32 and the fourth portion of the panel member PM30 It may be used to attach the portion PM34 to the second curved portion W32 and the third curved portion W34 of the cover window W33 .

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100, 200, 300, 400: cementation device 110, 210: stage
122: support member 130, 230, 330, 430: pressure member
131: main body 132, 232, 332, 432: air injection unit
133: pressing portion 340: first elastic member
440: second elastic member 160: movement driving unit
170: push drive unit 180: air supply unit
190: control unit

Claims (19)

a stage for supporting a cover window including a first curved portion and a flat portion that are continuous to each other;
a support member disposed on the stage and configured to support a panel member including a part and a part different from the cover window to face the cover window; and
It includes a pressing member disposed on the upper portion of the support member,
The pressing member is
an air injection unit configured to inject a first air to press the support member to attach a portion of the panel member to the first curved portion of the cover window;
and a pressing part connected to one side of the air spraying part and configured to attach the other part of the panel member to the flat part of the cover window by contacting the supporting member and pressing the supporting member. The method of claim 1,
The pressing member further comprises a body portion,
The air jetting unit extends from one side of the main body in such a way that the width becomes narrower. 3. The method of claim 2,
The air injection unit includes one side and the other side different from the one side,
and a first air jetting hole formed on the one side of the air jetting part and providing a passage through which the first air is jetted in the direction of the support member. 4. The method of claim 3,
The pressing member further includes a first air supply hole formed inside the main body and extending into the air spraying part to be connected to the first air spraying hole. 4. The method of claim 3,
and a first elastic member installed in the air spraying part to overlap the first air spraying hole and configured to protrude toward the support member by spraying the first air. 6. The method of claim 5,
The first elastic member is a bonding device installed in a flat shape or a shape protruding in the direction of the support member to the air injection unit. 4. The method of claim 3,
The cover window further includes a second curved portion positioned between the first curved portion and the flat portion and overlapping the first curved portion. 3. The method of claim 2,
The cover window further includes a second curved portion connected to the flat portion,
and the air spraying unit is configured to attach another portion of the panel member to the second curved portion by pressing the support member by spraying second air from a portion different from the portion from which the first air is sprayed. 3. The method of claim 2,
The cover window is positioned between the first curved portion and the flat portion and includes a second curved portion overlapping the first curved portion, a third curved portion connected to the flat portion, and the third curved portion connected to the cover window. and further comprising a fourth curved portion overlapping the third curved portion,
and the air jetting unit is configured to attach another portion of the panel member to the fourth curved portion by pressing the support member by jetting second air from a portion different from the portion from which the first air is jetted. 10. The method according to claim 8 or 9,
The air injection unit includes one side and the other side different from the one side,
The air injection unit,
a first air injection hole formed on the one side and providing a passage through which the first air is injected in the direction of the support member;
and a second air injection hole formed on the other side and providing a passage through which the second air is injected in the direction of the support member. 11. The method of claim 10,
The pressing member is
a first air supply hole formed inside the main body and extending into the air spraying part to be connected to the first air spraying hole;
and a second air supply hole formed inside the main body and extending into the air spraying part to be connected to the second air spraying hole. 11. The method of claim 10,
a first elastic member installed in the air spraying part to overlap the first air spraying hole and configured to protrude toward the support member by spraying the first air;
and a second elastic member installed in the air spraying part to overlap the second air spraying hole and configured to protrude toward the support member by spraying the second air. 13. The method of claim 12,
Each of the first elastic member and the second elastic member is installed in a flat shape or a shape protruding toward the support member in the air injection unit. The method of claim 1,
The panel member is a flexible touch panel or a display panel. seating a cover window including a first curved portion and a flat portion that are continuous to each other on a stage;
A support member for supporting a panel member including a portion and a different portion to face the cover window is disposed on the upper portion of the stage, and a pressing member including an air spraying part and a pressing part connected to one side of the air spraying part is formed as the support member placing on top of the;
attaching a portion of the panel member to the first curved portion of the cover window by pressing the support member with the pressure of the first air injected from the air spraying unit; and
and attaching another portion of the panel member to the flat part of the cover window by pressing the support member with a pressing pressure of the pressing part in contact with the support member. 16. The method of claim 15,
The step of attaching a portion of the panel member to the first curved portion of the cover window may include:
applying a pressing pressure to the support member using the pressing portion so that another portion of the panel member is in close contact with the portion adjacent to the first curved portion of the flat portion of the cover window;
adjusting the rotation of the pressing member so that a first air injection hole formed in one side of the air injection unit faces the first curved portion of the cover window with the support member interposed therebetween; and
and injecting the first air toward the support member through the first air injection hole. 17. The method of claim 16,
The pressure member may further include a first elastic member installed in the air spraying part to overlap the first air spraying hole and configured to protrude toward the support member by spraying the first air. . 16. The method of claim 15,
The cover window further includes a second curved portion connected to the flat portion,
and attaching another portion of the panel member to the second curved portion of the cover window by pressing the support member with a pressure of second air injected from a portion different from the portion from which the first air is injected. A method of manufacturing a display device. 16. The method of claim 15,
The method of manufacturing a curved display device, wherein the panel member is a flexible touch panel or a display panel.

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