KR20190138338A - Vacuum laminator - Google Patents

Abstract

Disclosed is a vacuum laminator. The vacuum laminator according to one embodiment of the present invention comprises: an alignment stage which performs alignment of a panel with respect to a curved window in order to laminate the panel and the curved window, wherein the curved window is formed by bending an end part; and a panel pressing jig which is in connection with the alignment stage and is aligned by being operated with the alignment stage while the alignment of the panel to the curved window is performed and presses the panel to the curved window during lamination. According to the present invention the quality of lamination can be improved.

Description

Vacuum Laminator {VACUUM LAMINATOR}

The present invention relates to a vacuum laminator, and more particularly, the panel pressing jig can be aligned together during the alignment of the panel with respect to the curved window, so that the center of the panel pressing jig (center) And the center of the panel aligned with respect to the curved window can always be exactly matched to improve the laminating quality.

Recently, a flexible display device having a flexible substrate made of a flexible material such as plastic has been developed.

Such a flexible display device is not only light in weight due to the characteristics of the material but also very strong in impact. Therefore, such a flexible display device has been widely applied to recently launched smart phones.

In particular, the flexible display device can be folded or rolled up because it has a flexible property, unlike the existing, it can be used in various fields because it can maximize the portability.

The flexible display device may include a display element formed on the flexible substrate. Display elements that can be used in the flexible display include organic light emitting diode display elements, liquid crystal display elements, and electrophoretic display elements.

The aforementioned display elements commonly include thin film transistors. Therefore, in order to manufacture the flexible display device, the flexible substrate needs to undergo several thin film processes. The flexible substrate that has undergone a thin film process may be sealed by an encapsulation substrate. The flexible substrate, the thin film transistor formed on the flexible substrate, and the encapsulation substrate may form a panel, which is one component of the flexible display device.

On one side of the panel, a window is attached, that is, laminated as a means of protecting the panel, and a product in which the panel and the window are laminated is called a flexible display device. For reference, when the panel and the window are laminated, a so-called double-sided tape type binder (OCA; Optical Clear Adhesive) may be interposed between the panel and the window.

Conventionally, flat windows are generally used as plate-shaped bodies, but recently, curved windows having bent edges having bent ends are widely used as edge products.

The following briefly introduces the process of laminating curved windows and panels.

First, the curved window is seated on the window mounting jig provided in the upper chamber of the vacuum laminator, and the panel is seated in the lower chamber.

Next, proceed with the relative alignment between the curved window and the panel. At this time, the alignment position provided on the panel side is used to adjust the attachment position between the curved window and the panel.

Then, after maintaining the upper and lower chambers in a vacuum, it is possible to laminate the curved window and the panel by raising the panel pressing jig provided independently of the alignment stage to the upper to press the panel to the curved window.

On the other hand, in the design of the vacuum laminator, the window mounting jig is generally made larger than the curved window so that various kinds of curved windows can be seated.

As such, when the window mounting jig is made larger than the curved window, a tolerance may occur between the window mounting jig and the curved window.

Therefore, whenever the curved window is seated on the window mounting jig, the seating position of the curved window on the window mounting jig may be changed slightly each time. Of course, even if the seating position of the curved window is changed, the attachment position between the curved window and the panel may be adjusted by the alignment operation using the alignment stage.

However, since the panel pressing jig provided independently of the alignment stage does not have a position correction, the center of the panel pressing jig and the center of the panel aligned with respect to the curved window do not exactly match. Considering the fact that the pressing position of the panel pressing jig pressurizes the panel may occur, which may adversely affect the laminating quality, there is a need for a new concept of vacuum laminator to solve this problem.

Korean Patent Office Application No. 10-2015-0007026

Accordingly, the technical problem to be achieved by the present invention is that the panel pressing jig can be aligned together when the panel is aligned with the curved window, and thus the center and the curved window of the panel pressing jig are aligned. The center of the aligned panel can always be exactly matched to provide a vacuum laminator that can improve the laminating quality.

According to an aspect of the present invention, an alignment stage for performing an alignment operation of the panel with respect to the curved window for laminating the curved window and the panel (panel) formed by bending the end; And a panel pressurizing jig connected to the alignment stage and aligned with the alignment stage when the panel is aligned with the curved window, and pressing the panel toward the curved window during the laminating operation. There may be provided a vacuum laminator comprising.

The panel pressurizing jig may include a panel pressurizing elastic body which is gradually formed to have a lower inclination gradually toward the side from a center of the upper end contacting the panel and is elastically spread and deformed when pressed to the panel; And it may include an elastic supporter for supporting the panel pressing elastic body.

An up / down jig shaft having an upper end connected to the panel pressing jig, and driving the panel pressing jig up / down; And a shaft driving part provided on the alignment stage and connected to a lower end of the up / down jig shaft, and configured to drive up / down of the up / down jig shaft.

The apparatus may further include a shaft bellows provided to extend on an outer side of the up / down jig shaft.

The shaft driving unit may include: a power generating unit generating power to provide a pressing force for the laminating operation to the panel pressing jig through the up / down jig shaft; A ball screw connected to the power generator along a direction crossing the up / down jig shaft and rotated in a forward and reverse direction by the power generator; And it is connected to the ball screw, it may include a movement conversion transmission unit for converting and transmitting the rotational movement of the ball screw to the up and down linear movement of the up / down jig shaft.

The power generation unit, the controllable servo motor; And a speed reducer connected to the servo motor and the ball screw to reduce the rotational force of the servo motor and transfer the reduced speed to the ball screw.

The motion conversion transmission unit, the first inclined pressure block is connected to the ball screw, the linear movement when the ball screw is rotated, one surface is inclined; And a second inclined pressure block which is disposed to correspond to the first inclined pressure block and is connected to a lower end of the up / down jig shaft, and which is vertically moved when the first inclined pressure block is moved horizontally. .

And an upper plate disposed in parallel with the alignment stage in an upper region of the alignment stage, wherein the up / down jig shaft is connected to the alignment stage via a shaft hole formed in the upper plate. Can be.

A plurality of connection supports connecting and supporting the alignment stage and the upper plate between the alignment stage and the upper plate; And support bellows coupled to the outside of the connection supports.

The apparatus may further include a panel seating unit disposed around the panel pressing jig and forming a place where the panel is seated.

The panel seating unit may include a pair of panel holders disposed symmetrically on both sides of the panel pressurizing jig with the panel pressurizing jig interposed therebetween to allow the panel to be seated while approaching or spaced apart from the panel pressurizing jig. Can be.

Each of the pair of panel holders may have a seating support jaw that is supported while the end of the panel is seated.

When the panel pressing jig presses the panel upward, an inclined wall may be formed around the seating support jaw to press the curved window while the panel is deformed into an arch shape.

The panel seating unit may further include a holder driving unit connected to the pair of panel holders, respectively, and driving the pair of panel holders to approach or space apart the panel pressing jig.

The holder driving unit is connected to the pair of panel holders, the holder guide for guiding the movement of the pair of panel holders; And a pair of panel holders, wherein the pair of panel holders may include a jig movement power generator for generating power for moving on the holder guide.

A base plate forming a lower portion of the alignment stage; And a stage driving unit provided on the base plate and connected to the alignment stage and driving the alignment stage in an X-axis, a Y-axis, and a θ-axis with respect to the plate surface.

A lower chamber covered outside the panel pressing jig; And a window mounting jig in which the curved window is seated is disposed inside the upper chamber, the upper chamber being joined to the lower chamber during the laminating operation.

The apparatus may further include a vacuum line connected to the lower chamber and configured to maintain a space in the lower chamber and the upper chamber under vacuum during the laminating operation.

According to the present invention, the panel pressing jig may be aligned together when the panel is aligned with the curved window, and thus the panel is aligned with the center of the panel pressing jig and the curved window. The centers of can always be exactly matched to improve the laminating quality.

1 is a structural diagram of a panel and a curved window applied to a vacuum laminator according to an embodiment of the present invention.
2 is a partial perspective view of a vacuum laminator according to an embodiment of the present invention.
3 is an enlarged perspective view of the image photographing unit.
FIG. 4 is a diagram illustrating a unit moving part in a dotted line in FIG. 3.
5 is a front view of FIG. 3.
6 is an enlarged view illustrating main parts of FIG. 5.
7 is a perspective view of FIG. 6.
8 is an enlarged structural diagram of a curved window photographing module.
FIG. 9 is an enlarged view of a state in which the image capturing unit is removed in FIG. 2.
FIG. 10 is a perspective view of a state where the upper chamber is removed from FIG. 9. FIG.
FIG. 11 is a perspective view of a state where the lower chamber is removed from FIG. 10. FIG.
FIG. 12 is a front view of FIG. 11, with the bellows removed. FIG.
13 is a side view of FIG. 12.
14 is an enlarged perspective view of the panel pressing jig and the panel seating area.
15 is a perspective view illustrating main parts of the jig area for pressing the panel in FIG. 14.
16 to 19 are diagrams showing the laminating process step by step.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings that illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a structural diagram of a panel and a curved window applied to a vacuum laminator according to an embodiment of the present invention, FIG. 2 is a partial perspective view of a vacuum laminator according to an embodiment of the present invention, and FIG. 3 is an enlarged view of an imaging unit. 4 is a perspective view of the unit moving unit in FIG. 3 with a dotted line, FIG. 5 is a front view of FIG. 3, FIG. 6 is an enlarged view of main parts of FIG. 5, FIG. 7 is a perspective view of FIG. 6, and FIG. 8. 9 is an enlarged structural diagram of a curved window photographing module, FIG. 9 is an enlarged view of a state in which the image capturing unit is removed in FIG. 2, FIG. 10 is a perspective view of a state in which the upper chamber is removed in FIG. 9, and FIG. 11 is a lower chamber in FIG. 10. 12 is a front view of FIG. 11, a view of the bellows being removed, FIG. 13 is a side view of FIG. 12, FIG. 14 is an enlarged perspective view of the panel pressing jig and the panel seating area. 15 is It is a perspective view of the principal part of the jig area | region for panel pressurization in FIG.

Referring to these drawings, in the vacuum laminator according to the present embodiment, the panel pressing jig 140 may be aligned together when the panel 10 is aligned with the curved window 20. As a result, the center of the panel pressing jig 140 and the center of the panel 10 aligned with respect to the curved window 20 can always be exactly matched to improve the laminating quality. Align stage 120 for aligning the panel 10 with respect to the window 20 and panel pressing jig 140 for pressing the panel 10 toward the curved window 20 during the laminating operation. ) May be included.

In addition, the vacuum laminator according to the present exemplary embodiment includes an image capturing unit for capturing an image of the lower chamber 110 and the upper chamber 130 where the actual laminating work is performed, and the curved window 20 and the panel 10 before the laminating work. And may include 210.

Prior to describing the structure of the vacuum laminator, the panel 10 and the curved window 20, which are actual laminating objects, will be briefly described with reference to FIG. 1.

In the present embodiment, the panel 10 is a flexible substrate that can be bent freely through a thin film process several times, then sealed with an encapsulation substrate, the module product in the state of bonding the polarizing film and the touch panel on one side thereof It is called.

The curved window 20 is attached to one side of the panel 10, that is, laminated to serve to protect the panel 10. As mentioned earlier, a product in which the panel 10 and the curved window 20 are laminated may be referred to as a flexible display device.

In applying a window as a means for protecting the panel 10, a flat window (not shown) has been used in the past, but recently, a curved window having a bent edge having an end bent, called an edge product. 20, see FIG. 1) is a widely used trend.

The curved window 20 may include a flat portion 21 that is a flat portion and a bent portion 22 that is bent at an end of the flat portion 21. In this embodiment, a curved window 20 is used instead of a flat window (not shown).

For reference, when the panel 10 and the curved window 20 are laminated by the vacuum laminator according to the present embodiment, a so-called double-sided tape type binder (OCA; Optical) is formed between the panel 10 and the curved window 20. Clear Adhesive) is interposed, and in this embodiment, the binder (OCA) is applied in a state of being previously attached to one side of the panel 10. Therefore, there is an advantage that does not need a process for preparing or supplying a separate binder (OCA).

Meanwhile, a vacuum laminator as shown in FIG. 2 may be used to laminate the panel 10 and the curved window 20 as shown in FIG. 1.

In the case of the present embodiment, considering that the curved window 20 is used as described above, while the flexible panel 10 is three-dimensionally laminated to the curved window 20, the 3D vacuum It can also be called a laminator.

Hereinafter, for convenience of description, the upper chamber 130, the lower chamber 110 and the components connected thereto, and the image capturing unit 210 shown in FIG. 2 will be described in sequence.

First, the upper chamber 130 will be described. As illustrated in FIGS. 2 and 9, the upper chamber 130 is a chamber provided to be movable up / down with respect to the lower chamber 110 in the upper region of the lower chamber 110.

In other words, the upper chamber 130 is engaged with the lower chamber 110 while being operated down toward the lower chamber 110 where the position is fixed, and then laminating the panel 10 and the curved window 20 is performed. Be sure to In the laminating operation, the inner spaces of the upper chamber 130 and the lower chamber 110 bonded to each other are maintained in a vacuum.

An upper chamber up / down driving means (not shown) is provided in the upper chamber 130 so that the upper chamber 130 can be driven up / down, which has been omitted for convenience.

The inside of the upper chamber 130 is provided with a window mounting jig 131 on which the curved window 20 is seated, as shown in FIG. 19. The window mounting jig 131 is provided larger than the curved window 20. Therefore, it can be commonly applied to curved windows of various sizes.

Next, the lower chamber 110 is a chamber bonded to the upper chamber 130 during the laminating operation. Unlike the upper chamber 130 which is driven up / down, the lower chamber 110 is fixed in position.

In the laminating operation of the panel 10 and the curved window 20, a vacuum line 111 is formed in the lower chamber 110 so that the inner spaces of the upper chamber 130 and the lower chamber 110 bonded to each other may be maintained in a vacuum. Connected. The vacuum line 111 may be connected to a vacuum pump (not shown).

As shown in FIGS. 10 to 19, a panel seating unit 170 is formed in the lower chamber 110 to form a place where the panel 10 is seated.

As shown in FIGS. 14 and 16 and 17, the panel seat 170 includes a pair of panel holders 180 to allow the panel 10 to rest substantially. The pair of panel holders 180 are provided symmetrically on both sides of the panel pressing jig 140 with the panel pressing jig 140 interposed therebetween, while approaching or spaced apart from the panel pressing jig 140. Let it rest. That is, as shown in FIG. 16, the pair of panel holders 180 may approach each other to seat the panel 10 loaded therebetween.

Each of the pair of panel holders 180 is provided with a seating support jaw 181 to which the end of the panel 10 is supported. The seating support jaw 181 is formed by a portion that is stepped on one side of the panel holder 180.

An inclined wall 182 is formed around the seating support jaw 181. 17 to 19, the inclined wall 182 is well formed by the curved window 20 as the panel 10 is deformed into an arch shape when the panel pressing jig 140 presses the panel 10 upward. Serves to pressurize. In particular, the flexible panel 10 serves to adhere well to the bent portion 22 region of the curved window 20 due to the elasticity in which the end portion of the flexible panel 10 is bent.

The holder driver 190 is provided to drive the pair of panel holders 180 in the direction of the arrow of FIG. 18. The holder driver 190 is connected to the pair of panel holders 180, respectively, and drives the pair of panel holders 180 to approach or space the panel pressing jig 140.

The holder driving unit 190 is connected to a pair of panel holders 180, a holder guide 191 for guiding movement of the pair of panel holders 180, and a pair of panel holders 180. The pair of panel holders 180 may include a jig movement power generator 192 for generating power for moving on the holder guide 191. The jig movement power generator 192 may be applied to a motor or a cylinder.

The panel pressing jig 140 is provided around the panel seating unit 170. In other words, the panel pressing jig 140 is provided between the pair of panel holders 180.

The panel pressing jig 140 serves to press the panel 10 toward the curved window 20 when laminating the panel 10 and the curved window 20.

In particular, the panel pressing jig 140 is connected to the alignment stage 120 in the present embodiment, while the alignment operation of the panel 10 with respect to the curved window 20 works together with the alignment stage 120. It becomes. Therefore, the center of the panel pressing jig 140 and the center of the panel 10 aligned with respect to the curved window 20 can always be exactly matched, thereby improving laminating quality.

I'll talk more about this. As mentioned earlier, the window mounting jig 131 provided in the upper chamber 130 is made larger than the curved window 20. When the window mounting jig 131 is made larger than the curved window 20, when the curved window 20 is vacuum-mounted on the window mounting jig 131, the window mounting jig 131 and the curved window 20 are formed. Tolerances may occur between

Of course, even if the mounting position of the curved window 20 is changed, the attachment position between the curved window 20 and the panel 10 may be aligned by an alignment operation using the alignment stage 120. However, if the alignment stage 120 and the panel pressing jig 140 are separated, the position of the panel pressing jig 140 may be adjusted even if the alignment operation of the panel 10 is performed by the alignment stage 120. Calibration cannot be made. Therefore, the center of the panel pressurizing jig 140 and the center of the panel 10 aligned with respect to the curved window 20 do not exactly match, so that the panel pressurizing jig 140 presses the panel 10. Deviation of the pressing position may occur, which may adversely affect the laminating quality.

Thus, in the present embodiment, the panel pressing jig 140 is connected to the alignment stage 120. When the panel pressing jig 140 is connected to the alignment stage 120 as described above, the panel pressing jig 140 also aligns with the alignment stage 120 when the panel 10 is aligned with respect to the curved window 20. It is aligned with operation. Therefore, the center of the panel pressing jig 140 and the center of the panel 10 aligned with respect to the curved window 20 can always be exactly matched, thereby improving laminating quality.

15 to 19, the panel pressing jig 140 is gradually inclined toward the side from the center of the upper end contacting the panel 10 and is formed to be gradually lowered to the panel 10. And an elastic body supporter 142 for supporting the panel pressing elastic body 141 which is elastically spread and deformed when being made.

The up / down jig shaft 143 is connected to the panel pressing jig 140. That is, the upper end of the up / down jig shaft 143 is connected to the panel pressing jig 140 and drives the panel pressing jig 140 up / down.

The up / down jig shaft 143 is an axis disposed along the up and down direction, and the driving force provided from the shaft driver 150 to be described later is provided to the panel pressing jig 140 so that the panel pressing jig 140 is in the window. While pressing toward the wearing jig 131, the laminating work for the panel 10 and the curved window 20 may be performed.

The up / down jig shaft 143 may be connected to the alignment stage 120 via the shaft hole 125a formed in the upper plate 125. The shaft bellows 144 is provided on the outside of the up / down jig shaft 143 so as to be extensible. Therefore, even if the up / down jig shaft 143 is operated up and down, it is possible to prevent the vacuum in the upper and lower chambers 130 and 110 from leaking.

The shaft driver 150 is provided to allow the up / down jig shaft 143 to be driven up / down. The shaft driving unit 150 is provided on the alignment stage 120 and is connected to the lower end of the up / down jig shaft 143, and serves to drive the up / down jig shaft 143 up / down. Do it. The shaft driver 150 may include a power generator 156, a ball screw 159, and a motion conversion transmission unit 160, as shown in detail in FIGS. 11 to 13.

The power generator 156 serves to generate power so that a pressing force for laminating work is provided to the panel pressing jig 140 through the up / down jig shaft 143. The power generating unit 156 is connected to the servo motor 157 that can be controlled, the servo motor 157 and the ball screw 159, and decelerates the rotational force of the servo motor 157 to transfer the ball screw 159 to the ball screw 159. It may include a reducer 158.

The ball screw 159 is connected to the power generator 156 along the direction crossing the up / down jig shaft 143 and rotated in the forward and reverse directions by the power generator 156.

The motion conversion transmission unit 160 is connected to the ball screw 159, and converts the rotational movement of the ball screw 159 into the up and down linear motion of the up / down jig shaft 143 and transmits it.

The movement conversion transmission unit 160 is connected to the ball screw 159, the first inclined pressure block 161 and the first inclined pressure block 161 is linearly rotated when one side of the ball screw 159 is formed to be inclined The lower end of the up / down jig shaft 143 is disposed to correspond to the block 161 and includes a second inclined pressure block 162 that is vertically moved when the first inclined pressure block 161 is moved horizontally. can do.

Thus, when the ball screw 159 is rotated in one direction by the operation of the power generating unit 156, the first inclined pressure block 161 is moved horizontally, in which case the second inclined pressure block (2) facing inclined mutually ( As the 162 is pushed, the second inclined pressure block 162 is vertically moved upward. As such, when the second inclined pressure block 162 is vertically moved upward, the up / down jig shaft 143 may be operated up to press the panel pressing jig 140 toward the window mounting jig 131. Will be.

The servo motor 157 and the reducer 158 which can be controlled like this produce a large output, and the motion conversion transmission unit 160 converts the rotational movement of the ball screw 159 into the vertical movement of the up / down jig shaft 143. By converting and transferring, it can be met with recent objectives to prevent bubbles by pressing and laminating the panel 10 toward the curved window 20 with a large force.

Meanwhile, the alignment stage 120 serves to align the panel 10 with respect to the curved window 20 for laminating the panel 10 and the curved window 20. The base plate 121 and the stage driver 122 are disposed below the alignment stage 120 so that the alignment stage 120 may be moved.

The base plate 121 forms a lower portion of the alignment stage 120. In addition, the stage driver 122 is provided on the base plate 121 and connected to the alignment stage 120, and serves to drive the alignment stage 120 in the X, Y, and θ axes of the plate surface. . The stage driver 122 is disposed at four corner regions of the base plate 121 to drive the alignment stage 120 in the X, Y, and θ axes of the plate surface. The stage driver 122 may be applied by a combination of a motor and a ball screw.

The upper plate 125 is provided on the alignment stage 120. The upper plate 125 is disposed in parallel with the alignment stage 120, and forms a place where the panel seating unit 170 is installed.

A plurality of connection supports 126 are provided between the alignment stage 120 and the upper plate 125 to connect and support the alignment stage 120 and the upper plate 125. And the support bellows 127 is coupled to the outside of the connection support 126.

Lastly, as shown in FIGS. 2 to 8, the image capturing unit 210 captures images of the curved window 20 and the panel 10 before laminating.

In other words, when the lower chamber 110 and the upper chamber 130 are opened as shown in FIG. 2, the image capturing unit 210 is disposed between the curved window 20 and the lower chamber 110 on the side of the upper chamber 130. Take an image of the panel 10 on the) side. The image information of the curved window 20 and the panel 10 captured by the image capturing unit 210 is transmitted to a controller (not shown), and based on this, the controller X moves the alignment stage 120 through the stage driver 122. Alignment of the panel 10 with respect to the curved window 20 is performed by driving in the axis | shaft, Y-axis, and (theta) axis. As described above, in the present embodiment, since the panel pressing jig 140 is also aligned while the alignment stage 120 is operated, the center and the curved window 20 of the panel pressing jig 140 are aligned. The center of the panel 10 aligned with respect to) can always be exactly matched, so that laminating quality can be improved.

The image capturing unit 210 captures an image of the curved window capturing module 220 for capturing an image of the curved window 20 on the upper chamber 130 and the panel 10 on the lower chamber 110. The panel photographing module 230 may be included.

The curved window photographing module 220 and the panel photographing module 230 are provided to be connected to each other in one body. In this case, the curved window photographing module 220 and the panel photographing module 230 connected to one body are applied in two pairs. Therefore, speed of photographing both side regions of the curved window 20 and the panel 10 can be increased.

The structure of the curved window capturing module 220 and the panel capturing module 230 constituting the image capturing unit 210 is substantially the same.

However, in the present exemplary embodiment, the curved window photographing module 220 is bent with the flat portion 21 of each portion of the curved window 20 having different shooting focus positions, for example, the curved window 20 having different shooting focus positions as shown in FIG. 8. Images of the unit 22 are simultaneously photographed.

The curved window photographing module 220 includes a camera 221, a single lens 222 coupled to one side of the camera 221, an illumination member 223 connected to the single lens 222, and a curved window 20. It may include a glass box 225 detachably coupled to a portion of the entire area of one end of the lighting member 223 toward the ().

The camera 221 may be applied as a CCD camera 221 in this embodiment. The CCD camera 221 is a digital camera, and refers to a device that stores digital data as a data in a storage medium such as a flash memory by converting an image into an electrical signal using a charge coupled device (CCD). The picture quality is excellent.

The short lens 222 is also referred to as a short focus lens or a focus fixed lens, and is excellent in image quality because the aperture opening value is high. The lighting member 223 may use LED lighting.

On the other hand, the glass box 225 is a block-shaped structure of a certain thickness of glass (glass) serves to different the refractive index of the light. Since the glass box 225 is made of glass, a difference may occur in the refractive index of light passing therethrough.

The glass box 225 may be detachably coupled to the detachable portion 224 provided at the end of the lighting member 223. As such, when the glass box 225 is detachably coupled to the detachable part 224, the glass box 225 may be easily replaced. In particular, there is an advantage that can be selected and applied to several kinds of glass box (not shown) to adjust the focal length.

When the glass box 225 is installed on one side of the lighting member 223 as in this embodiment, the curved window (through the virtual first photographing line passing through the glass box 225 in the lighting member 223 as shown in FIG. 8). An image of the flat portion 21, which is a flat portion of the image 20, is captured, and the bent portion 22 of the bent portion 22, which is a bent portion of the curved window 20, passes through a virtual second shooting line that does not pass through the glass box 225. An image can be taken. That is, since the refractive index is changed by the glass box 225, images of the respective portions of the curved window 20 having different photographing focus positions may be simultaneously photographed.

In fact, as described above, in order to focus the flat portion 21 and the bend portion 22 of the curved window 20 with the single lens 222 of the camera 221, the single lens position adjusting stage of the camera 221, respectively. It is inevitable to consider using (not shown) or using multiple cameras (not shown). However, when the single lens position adjusting stage of the camera 221 is applied, it is cumbersome to adjust the single lens position of the camera whenever the shooting focus position is changed. Can only be complicated.

However, in the present embodiment, the glass box 225 having a simple, effective and compact structure is applied beyond the complicated control and structure. As described above, since the refractive index is changed by the glass box 225, images of the flat part 21 and the bent part 22 of the curved window 20 having different imaging focus positions may be simultaneously captured.

The panel capturing module 230 is provided independently of the curved window capturing module 220 and serves to photograph an image of the panel 10. The panel photographing module 230 has the same structure as the curved window photographing module 220 except for the glass box 225.

The curved window imaging module 220 is mounted on the first module mounting unit 241, the panel imaging module 230 is mounted on the second module mounting unit 242, and the first and second module mounting units 241 and 242 are supported by the module. And integrally connected to 243. Therefore, the curved window photographing module 220 and the panel photographing module 230 may be connected to one body.

The module support 243 is connected to the unit moving part 250 and moved. The unit moving unit 250 is a kind of linear motor that is connected to each other to form a position of the curved window photographing module 220 and the panel photographing module 230 that form a body. That is, only when photographing is required, the curved window photographing module 220 and the panel photographing module 230 are driven between the lower chamber 110 and the upper chamber 130.

The operation of the vacuum laminator will be described below.

First, in order to load the panel 10 and the curved window 20, which are the laminating object, on the lower chamber 110 and the upper chamber 130, the upper chamber 130 is opened upward from the lower chamber 110. Becomes

Subsequently, the panel 10 and the curved window 20 are loaded by separate loading devices (not shown). The panel 10 is seated on the panel seating portion 170 of the lower chamber 110 as shown in FIG. 17, and the curved window 20 is seated on the window seating jig 131 of the upper chamber 130. After the panel 10 and the curved window 20 are loaded, the loading device returns to its original position.

Next, the image capturing unit 210 is operated. That is, the curved window imaging module 220 and the panel imaging module 230 are disposed between the lower chamber 110 and the upper chamber 130 by the action of the unit moving unit 250. Then, the image of the curved window 20 and the panel 10 is taken. In particular, since the glass box 225 is applied to the curved window photographing module 220, images of the flat part 21 and the bent part 22 of the curved window 20 having different photographing focus positions may be simultaneously photographed.

When the image capturing of the curved window 20 and the panel 10 is completed, the image capturing unit 210 returns to its original position. In addition, the image information of the curved window 20 and the panel 10 captured by the image capturing unit 210 is transmitted to a controller (not shown). Alignment of the panel 10 with respect to the curved window 20 is performed by driving in the X, Y, and θ axes. That is, the alignment of the panel 10 is performed on the basis of the curved window 20.

Since the panel pressing jig 140 is also aligned while operating the alignment stage 120 as described above, the panel is aligned with respect to the center of the panel pressing jig 140 and the curved window 20. The center of 10 can always be exactly matched.

Next, when the alignment of the panel 10 and the curved window 20 is completed, the panel pressing jig 140 is operated up to slightly push the center of the panel 10 upward. Then, the panel 10 is arched as shown in FIG. 18. That is, since the end portion of the panel 10 is supported by the inclined wall 182 of the panel holder 180, the panel pressing jig 140 is operated up to slightly center the center of the panel 10 upward. When pushed and pressed, the panel 10 is arched while the center of the panel 10 rises upward.

In this state, the upper chamber 130 is down operated to be attached to the lower chamber 110. Then, the center of the curved window 20 seated on the window mounting jig 131 of the upper chamber 130 slightly touches the center of the panel 10 in an arch shape. In other words, the center of the curved window 20 is in contact with the center of the panel 10 in the shape of an arch as if it is point contact.

Then, the interior of the lower chamber 110 and the upper chamber 130 is formed in a vacuum, and then the panel pressing jig 140 is further up (up) as shown in FIG. 19.

When the panel pressing jig 140 is further operated upward, the panel 10 is detached from the inclined wall 182 of the panel holder 180 by such a force so that the panel pressing jig 140 may be in close contact with the curved window 20. Then, the panel pressing elastic body 141 is deformed according to the curvature of the curved window 20 to press the entire area of the panel 10 to the curved window 20. Accordingly, the panel 10 may be laminated to the curved window 20 without lifting up.

When the laminating operation is completed, the upper chamber 130 is opened. Since the panel 10 is laminated to the curved window 20, the laminated product is lifted upward along the upper chamber 130 and then taken out by the transfer machine.

According to the present exemplary embodiment having the structure and the function as described above, the panel pressing jig 140 may be aligned together when the panel 10 is aligned with the curved window 20. As a result, the center of the panel pressurizing jig 140 and the center of the panel 10 aligned with respect to the curved window 20 may be exactly matched at all times, thereby improving laminating quality.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

10 panel 20 surface window
21: flat part 22: bent part
110: lower chamber 111: vacuum line
120: alignment stage 121: base plate
122: stage driving unit 125: upper plate
125a: shaft hole 126: connection support
127: support bellows 130: upper chamber
131 window mounting jig 140 panel pressing jig
141: elastic member for pressing the panel 142: elastic supporter
143: up / down jig shaft 144: shaft bellows
150: shaft drive unit 156: power generating unit
157: servo motor 158: reducer
159: ball screw 160: motion conversion transmission unit
161: first inclined pressure block 162: second inclined pressure block
170: panel mounting portion 180: panel holder
181: seating support jaw 182: inclined wall
190: holder drive unit 191: holder guide
192: power generating unit for jig movement 210: video recording unit
220: curved window shooting module 221: camera
222: single lens 223: lighting member
224: removable part 225: glass box
230: panel recording module 241: first module mounting portion
242: second module mounting portion 243: module support
250: unit moving part

Claims (18)

An alignment stage for aligning the panel with respect to the curved window for laminating the curved window and the panel formed by bending an end portion; And
A panel pressing jig connected to the alignment stage and aligned with the alignment stage when the panel is aligned with the curved window, and pressing the panel toward the curved window during the laminating operation. Vacuum laminator, characterized in that. The method of claim 1,
The panel pressurizing jig,
An inclined panel having an inclined degree gradually lowered toward a side from a center of the upper end of the upper panel in contact with the panel, and being elastically spread and deformed when pressed against the panel; And
And an elastic supporter for supporting the panel pressurizing elastic body. The method of claim 1,
An up / down jig shaft having an upper end connected to the panel pressing jig, and driving the panel pressing jig up / down; And
And a shaft driver provided on the alignment stage and connected to a lower end of the up / down jig shaft, and configured to drive up / down of the up / down jig shaft. The method of claim 3,
The vacuum laminator further comprises a shaft bellows provided to be extensible on the outer side of the up / down jig shaft. The method of claim 3,
The shaft drive unit,
A power generating unit generating power to provide a pressing force for the laminating operation to the panel pressing jig through the up / down jig shaft;
A ball screw connected to the power generator along a direction crossing the up / down jig shaft and rotated in a forward and reverse direction by the power generator; And
It is connected to the ball screw, the vacuum laminator comprising a motion conversion transmission unit for converting and transmitting the rotational movement of the ball screw to the vertical movement of the up / down jig shaft. The method of claim 5,
The power generation unit,
Controllable servomotors; And
And a speed reducer connected to the servo motor and the ball screw, and configured to reduce the rotational force of the servo motor and transmit the reduced speed to the ball screw. The method of claim 5,
The exercise conversion transfer unit,
A first inclined pressure block connected to the ball screw and linearly moving when the ball screw is rotated, the one surface of which is inclined; And
It is disposed corresponding to the first inclined pressure block, the lower end of the up / down jig shaft is connected, characterized in that it comprises a second inclined pressure block which is vertically moved when the horizontal movement of the first inclined pressure block. Vacuum laminator. The method of claim 3,
And an upper plate disposed in parallel with the alignment stage in an upper region of the alignment stage,
The up / down jig shaft is connected to the alignment stage via a shaft hole formed in the upper plate, the vacuum laminator. The method of claim 8,
A plurality of connection supports connecting and supporting the alignment stage and the upper plate between the alignment stage and the upper plate; And
And a support bellows coupled to the outside of the connection supports. The method of claim 1,
And a panel seating part disposed around the panel pressing jig and forming a place where the panel is seated. The method of claim 10,
The panel mounting portion,
A pair of panel holders provided symmetrically on both sides of the panel pressurizing jig with the panel pressurizing jig interposed therebetween to allow the panel to be seated while approaching or spaced apart from the panel pressurizing jig. Laminator. The method of claim 11,
Each of the pair of panel holder is a vacuum laminator, characterized in that the seating supporting jaw is formed while the end of the panel is supported. The method of claim 12,
Vacuum laminator, characterized in that the inclined wall for pressing the curved window as the panel is deformed in the form of an arch when the panel pressing jig presses the panel upwards around the seating support jaw. . The method of claim 11,
The panel mounting portion,
And a holder driver connected to each of the pair of panel holders, the holder driving unit driving the pair of panel holders to the panel pressing jig. The method of claim 14,
The holder driving unit,
A holder guide connected to the pair of panel holders and guiding movement of the pair of panel holders; And
And a jig movement power generation unit connected to the pair of panel holders to generate power for the pair of panel holders to be moved on the holder guides. The method of claim 1,
A base plate forming a lower portion of the alignment stage; And
And a stage driving unit provided on the base plate and connected to the alignment stage, the stage driving unit driving the alignment stage in the X, Y, and θ axes of the plate surface. The method of claim 1,
A lower chamber covered outside the panel pressing jig; And
The window mounting jig for seating the curved window is provided therein, disposed on the upper portion of the lower chamber, the vacuum laminator further comprises an upper chamber that is joined to the lower chamber during the laminating operation. The method of claim 17,
And a vacuum line connected to the lower chamber and configured to maintain a space in the lower chamber and the upper chamber under vacuum during the laminating operation.

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