KR101470935B1 - A device for laminating on a curved cover glass using a suction belt - Google Patents

A device for laminating on a curved cover glass using a suction belt Download PDF

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Publication number
KR101470935B1
KR101470935B1 KR1020140047789A KR20140047789A KR101470935B1 KR 101470935 B1 KR101470935 B1 KR 101470935B1 KR 1020140047789 A KR1020140047789 A KR 1020140047789A KR 20140047789 A KR20140047789 A KR 20140047789A KR 101470935 B1 KR101470935 B1 KR 101470935B1
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KR
South Korea
Prior art keywords
roller
belt
adsorption
cover glass
sensor film
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KR1020140047789A
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Korean (ko)
Inventor
정진영
허성환
김홍채
이광구
Original Assignee
주식회사 트레이스
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Priority to KR1020140047789A priority Critical patent/KR101470935B1/en
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Publication of KR101470935B1 publication Critical patent/KR101470935B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

More particularly, the present invention relates to an apparatus for attaching a curved cover glass using a suction belt, and more particularly, to a cohesive apparatus for curved cover glass using a suction belt, And more particularly, to a cohesive device for a curved cover glass using a suction belt for pressing a sensor film to remove the protective film at the same time as the coagulation.
According to the present invention, the planar sensor film can be precisely adhered to the cover glass made of curved surface, and there is an effect that the sensor film can be firmly adhered without any bubbles or floating parts therebetween.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device for attaching a curved cover glass using a suction belt,

The present invention relates to a cohesive device for a curved cover glass using an adsorption belt, and more particularly, to a cohesive device for a curved cover glass using an adsorption belt, And more particularly, to a cohesive device for a curved cover glass using a suction belt for pressing a sensor film to remove a protective film at the same time as attaching the sensor film.

2. Description of the Related Art In general, a touch screen panel is an input device that replaces a keyboard and a mouse, and is a display device in which a user touches a touch screen panel installed on a display terminal with a hand or a touch pen to input desired information.

The touch screen panel is an ideal device that can perform intuitive work in a GUI (Graphic User Interface) environment and is widely used in computer-based training, simulation application, office automation application, education application, and game application. In recent years, a touch screen panel is widely used in various communication apparatuses to widen the display area while reducing the weight and thickness of the terminal.

In recent years, a curved display screen has appeared rather than a flat surface, so that a curved window has to be fitted to the curved surface of the display, thus requiring a curved touch screen panel.

FIG. 1A is a perspective view illustrating a jig used in a method of manufacturing a window member according to the related art, and FIG. 1B is a perspective view illustrating a process of attaching a hardened sheet to a window member using the jig of FIG.

In the method of manufacturing a window member according to the prior art example, a high-hardness sheet 33 suitable for a window member is processed, a body of a window member is manufactured, and the prepared high-hardness sheet 33 is formed into a body As shown in FIG. At this time, the body 31 is formed into a curved shape.

The high hardness sheet 33 made of a curved surface is placed on the outer surface of the body 31 and pressed and attached by the roller 43. [ In order to perform such a roll laminating process, an adhesive material is disposed between the high hardness sheet 33 and the body 31. After the optical transparent adhesive film is adhered to the hardened sheet 33, the hardened sheet 33 is placed on the outer surface of the manufactured body 31 with the optical transparent adhesive film facing the sheet, and a roll laminating process is performed .

When the jig 41 is fed while being pressed by the roller 43 in a state where the body 31 is disposed on the separate jig 41 used for the roll laminating process, the high-hardness sheet 33 is attached to the body 31 do.

However, in order to attach the curved sheet in this manner, the diameter of the roller must be smaller than the radius of curvature of the curved portion. Otherwise, the surface of the roller is not completely in contact with the curved surface, and the crimping is not correct. However, the cover glass of recent products has a very small radius of curvature of the curved surface portion, which requires a small-sized roller. However, the method of pressing the film slowly while releasing the film with a small-sized roller has a problem in implementation.

KR 10-2013-0007068 A KR 10-1260297 B1 KR 10-2014-0002470 A KR 10-2014-0002491 A

According to an aspect of the present invention, there is provided a vacuum cleaner comprising a vacuum plate or an electrostatic chuck rotatably mounted on a vacuum plate, And an object of the present invention is to provide a cohesive device for a curved cover glass using an adsorption belt for pressing and bonding a sensor film on the inner side.

Further, according to the present invention, the vacuum plate and the adsorption belt are formed with adsorption holes of different sizes, and the vacuum adsorption force can be maintained while the adsorption holes are staggered with each other, so that the sensor film continues to the surface of the adsorption belt It is an object of the present invention to provide a lapping device for a curved cover glass using an adsorption belt which can be brought into close contact with each other.

In addition, the present invention provides a cohesive device for a curved cover glass using an adsorption belt, wherein a separate clamping roller is provided on the outer side of the adsorption belt to grip the distal end of the protective film so that the protective film can be removed at the same time as the sensor film is adhered .

In order to solve the above-described problems, the present invention has been developed in order to solve the above-mentioned problems, and it is an object of the present invention to provide a sensor device in which a sensor film 70 to be cemented is pressed and attached along the surface of a cover glass 60, A vacuum plate 102 in which a plurality of plate adsorption holes 102a are formed in the shape of a long hole and a means for generating a vacuum attraction force is provided in the plate; An adsorption belt 104 having a plurality of belt adsorption holes 104a formed on its surface and rotating in a state surrounding the outer surface of the vacuum plate 102; A first roller 106 and a second roller 108 which are rotatably installed on both end surfaces in the longitudinal direction of the vacuum plate 102 to rotate the adsorption belt 104; And a clamping roller 110 installed on the outer side of the adsorption belt 104 and moving parallel to the circumference of the first roller 106. The radius of the first roller 106 is smaller than the radius of the cover glass 60). ≪ / RTI >

The plate adsorption holes 102a are formed in a relatively longer shape as compared with the belt adsorption holes 104a, and are arranged in the longitudinal direction in the same longitudinal direction as the rotation direction of the adsorption belt 104. [

The marking printed on the second protective film 72 attached to the upper surface of the sensor film 70 or the edge of the second protective film 72 is checked to see if the sensor film 70 is in the correct position And a camera (112).

According to the present invention, the planar sensor film can be precisely adhered to the cover glass made of curved surface, and there is an effect that the sensor film can be firmly adhered without any bubbles or floating parts therebetween.

Further, when the sensor film is affixed to the cover glass, there is an effect that the protective film can be removed from the cover glass while adhesion is performed.

FIG. 1A is a perspective view showing a jig used in a method of manufacturing a window member according to the prior art; FIG.
FIG. 1B is a perspective view showing a process of attaching a high hardness sheet to a window member using the jig of FIG. 1A; FIG.
2 is a perspective view illustrating the structure of a lid assembly according to an embodiment of the present invention;
3 is an exploded perspective view for explaining components of the cementing device of FIG. 2;
4 is a plan view comparing the shapes of the vacuum holes formed on the vacuum plate and the adsorption belt, respectively.
5 is a cross-sectional view showing a state in which the adsorption apparatus aligns its position while adsorbing the film.
6 is a cross-sectional view showing a state in which the extension portion of the second protective film is held by the clamping roller.
7 is a cross-sectional view showing a state in which the sensor film is moved over the cover glass.
8 to 11 are cross-sectional views showing a state in which adhesion is progressed while the adsorption apparatus is rotated.

Hereinafter, a "coiling apparatus for a curved cover glass using an adsorption belt" (hereinafter referred to as a "coiling apparatus") according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a perspective view illustrating the structure of a lid assembly according to an embodiment of the present invention, FIG. 3 is an exploded perspective view illustrating components of the lid assembly of FIG. 2, Fig.

The sticking apparatus 100 of the present invention comprises means for adsorbing a thin film to be cemented (a sensor film or OCA attached to both sides of a protective film) and means for fixing the thin film to the cover glass 60 while rotating the thin film. In the present invention, as the thin film adsorption means, a device for holding a film by vacuum attraction force and a device for holding a film by an electrostatic force may be used.

First, an apparatus for adsorbing a film by vacuum attraction force will be described with reference to the drawings.

A vacuum plate (102) for generating a vacuum attraction force for attracting a thin film is provided inside the lid (100). The vacuum plate 102 is formed in the shape of a box having a substantially trapezoidal side surface and a rectangular plane, and a vacuum attracting force is generated by a vacuum ejector (not shown) installed inside or outside. A plurality of plate adsorption holes 102a are formed on the surface of the vacuum plate 102. [ The plate adsorption hole 102a has a relatively elongated slot shape as shown in Fig. The elongated plate adsorption holes 102a are arranged in the longitudinal direction (long axis direction) in the same direction as the longitudinal direction of the vacuum plate 102. [

The adsorption belt 104 is rotated by the rollers in a state surrounding the outer surface of the vacuum plate 102. The adsorption belt 104 is made of rubber, urethane, silicon, or the like, and rotates on the outer surface of the vacuum plate 102 like an endless track. A plurality of belt adsorption holes 104a are formed on the adsorption belt 104, and the belt adsorption holes 104a are formed in a circular shape.

The belt adsorption holes 104a are relatively small as compared with the plate adsorption holes 102a and are formed at a size and an interval such that a plurality of belt adsorption holes 104a can be inserted into one plate adsorption hole 102a (See Fig. 4)

When the suction belt 104 is surrounded on the surface of the vacuum plate 102, the lower plate suction hole 102a and the upper belt suction hole 104a communicate with each other. When the adsorption belt 104 rotates in this state, the belt adsorption hole 104a moves in the longitudinal direction of the vacuum plate 102. The length of the plate adsorption hole 102a, which is in the form of a long hole, The one or two belt adsorption holes 104a are always kept in communication with the plate adsorption holes 102a. As a result, the thin film can be continuously adsorbed on the surface of the adsorption belt 104.

When the thin film is adsorbed by the electrostatic force, an electrostatic chuck is built in place of the vacuum plate 102, and the adsorption belt 104 surrounding the electrostatic chuck is replaced with a belt made of a silicon material to which electrostatic force can be easily transferred. The electrostatic force generated in the electrostatic chuck inside keeps the thin film adsorbed on the surface of the adsorption belt 104.

Both end surfaces of the vacuum plate 102 in the longitudinal direction are recessed inwardly, and a first roller 106 and a second roller 108 are rotatably installed in this portion. Since the sides of the vacuum plate 102 are trapezoidal, the lengthwise opposite side surfaces of the vacuum plate 102 are different in length from each other. For convenience of explanation, the first roller 106 is provided at a short front portion and the second roller 108 is provided at a rear long portion. The central axes of the first roller 106 and the second roller 108 are arranged parallel to each other and parallel to the width direction of the vacuum plate 102.

It is preferable that the radius of the first roller 106 is smaller than the radius of curvature of the cover glass 60 to be cemented.

The first roller 106 and the second roller 108 rotate the adsorption belt 104 while contacting the inner surface of the adsorption belt 104. A motor is installed for the rotation of the rollers. For ease of installation, it is preferable to install a motor inside or outside the second roller 108 having a relatively large diameter.

The clamping roller 110 is installed outside the adsorption belt 104 with the central axis thereof parallel to the first roller 106. The clamping roller 110 is disposed at a position close to the first roller 106 and is configured to be movable in parallel along the periphery of the first roller 106 by a separate conveying means (not shown).

The camera 112 is installed at the longitudinal end portion of the suction belt 104 and is used for confirming whether the thin film or the cover glass 60 is correctly positioned. The camera 112 is separated from the vacuum plate 102 and the suction belt 104 so that vibration is not transmitted and interference does not occur in the laminating process.

FIG. 5 is a cross-sectional view showing a state in which a position is aligned while adsorbing a film on an adsorption apparatus, FIG. 6 is a cross-sectional view showing a state in which an extension of a second protective film is gripped by a clamping roller, Fig. 8 to Fig. 11 are cross-sectional views showing a state in which adhesion is progressed while the adsorption apparatus is rotated.

In order to fix the sensor film 70 to the cigarette lighter 100, the sensor film 70 may be attached to the surface of the suction belt 104 in a state in which the vacuum attraction force of the vacuum plate 102 is generated, The sensor film 70 is attached to the surface of the suction belt 104 made of silicon in a state where the electrostatic force of the electrostatic chuck is generated.

Protective films 71 and 72 are attached to the upper surface and the lower surface of the sensor film 70, respectively. The sensor film 70 is attached to the inner surface of the cover glass 60 while the first protective film 71 at the bottom of the protective films 71 and 72 is removed first. The second protective film 72 on the upper side is adhered in a state of being in contact with the adsorption belt 104 and gradually separated from the sensor film 70 while the adhesion is progressing.

The edge portion of the second protective film 72 is made to protrude longer than the sensor film 70 or the first protective film 71. The protruding extension 72a of the second protective film 72 is inserted between the surface of the adsorption belt 104 and the clamping roller 110. The distance between the surface of the adsorption belt 104 and the surface of the clamping roller 110 can be held by the clamping roller 110 by the clamping roller 110 so that the distance between the surface of the adsorption belt 104 and the surface of the clamping roller 110 is substantially the same as the thickness of the extension 72a .

The extension 72a is moved to the opposite side of the sensor film 70 while being folded by the clamping roller 110 in the process of attaching. Since the second protective film 72 is closely attached to the adsorption belt 104 by the clamping roller 110, it also serves to fix the sensor film 70 to the adsorption belt 104 together with the vacuum adsorption force or the electrostatic force.

A marking for aligning the film is printed on the extended portion 72a, and the camera 112 is used to check whether the sensor film 70 is in the correct position. In some cases, it is possible to recognize the position of the edge of the second protective film 72 by recognizing the mark without printing another marking.

The sensor film 70 described in the present invention is a film layer for manufacturing a touch screen panel. The transparent film 70 has orthogonal transparent electrodes to provide a function of sensing the touch position. However, the present invention can also be used for adhering a film used for image display.

When the sensor film 70 with the protective films 71 and 72 is adsorbed on the surface of the adsorption belt 104 and the extended portion 72a of the second protective film 72 is fixed by the clamping roller 110, The clamping roller 110 is moved in parallel along the circumference of the first roller 106 while being rotated (see FIG. 6). As a result, the extended portion 72a is brought into close contact with the surface of the adsorption belt 104 while being bent.

In this state, as shown in Fig. 7, the cover glass 60, which is the object of the adhesion, moves close to the lid 100. At this time, the end portion of the sensor film 70 is aligned with the end portion of the cover glass 60. Since the first protective film 71 on the lower surface of the sensor film 70 is removed, the cover glass 60 and the sensor film 70 can be joined together. In the drawings of the present invention, the edge of the cover glass 60 is shown to be bent upwards. In the actual display device, the concave upper surface is the inner surface (located at the lower side).

Next, the sensor film 70 is held in contact with the inner surface of the cover glass 60, and the sensor is fixed while the lid 100 is rotated (see FIGS. 8 to 11). Or the inside surface of the cover glass 60 is coated with an adhesive so that the sensor film 70 and the cover glass 60 are continuously joined together by the rotation of the lid 100.

The portion where the first roller 106 is present presses the upper surface of the sensor film 70 gradually from the edge so that the air bubbles which have entered between the cover glass 60 and the sensor film 70 are completely removed and the lid is cleanly attached.

The sensor film 70 is kept attached to the surface of the adsorption belt 104 by a vacuum attraction force or an electrostatic force. As the absorption belt 104 rotates, the belt absorption hole 104a continuously moves. However, in the case of using the vacuum plate 102, since the state in which the belt suction hole 104a communicates with the lower plate suction hole 102a is maintained, the vacuum suction force is continuously transmitted to the sensor film 70. [

When the distal end of the lid 100 (near the surface of the first roller) moves while maintaining contact with the inner surface of the cover glass 60, the first roller 106 also rotates together, The sensor film 70 is lowered downward. Therefore, by the time the distal end of the lid 100 moves to the opposite side of the cover glass 60, all the sensor films 70 can be attached to the inner surface of the cover glass 60.

The sensor film 70 is completely adhered to the surface of the cover glass 60 when the adsorption belt 104 is rotated about 180 degrees and then the second protective film 72 remaining on the sensor film 70 is removed, The process is complete.

While the movement and rotation of the lid 100 and the laminating of the sensor film 70 are performed, the clamping roller 110 maintains the state close to the adsorption belt 104, (Not shown).

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

60: cover glass 70: sensor film
71, 72: protective film 100: laminating apparatus
102: Vacuum plate 102a: Plate adsorption ball
104: an adsorption belt 104a: a belt adsorption ball
106: first roller 108: second roller
110: clamping roller 112: camera

Claims (4)

An apparatus for removing a second protective film (72) adhering to a sensor film (70) by pressing and sticking a sensor film (70) to be cemented along the surface of a cover glass (60)
A vacuum plate 102 on which a plurality of plate adsorption holes 102a are formed in the shape of a slot and in which a means for generating vacuum attraction force is installed;
An adsorption belt 104 having a plurality of belt adsorption holes 104a formed on its surface and rotating in a state surrounding the outer surface of the vacuum plate 102;
A first roller 106 and a second roller 108 which are rotatably installed on both end surfaces in the longitudinal direction of the vacuum plate 102 to rotate the adsorption belt 104;
And a clamping roller 110 installed outside the adsorption belt 104 and moving in parallel along the circumference of the first roller 106,
The radius of the first roller 106 is smaller than the radius of curvature of the cover glass 60,
Characterized in that the plate adsorption hole (102a) is formed in a relatively long shape relative to the belt adsorption hole (104a), and the long axis direction is arranged in the longitudinal direction same as the rotation direction of the adsorption belt (104) Coating device for curved cover glass using an absorption belt. delete An apparatus for removing a second protective film (72) adhering to a sensor film (70) by pressing and sticking a sensor film (70) to be cemented along the surface of a cover glass (60)
An electrostatic chuck for generating an electrostatic force for attracting the sensor film (70);
A suction belt 104 made of silicon and rotating in a state surrounding the surface of the electrostatic chuck;
A first roller 106 and a second roller 108 that are rotatably installed on both end surfaces of the electrostatic chuck in the longitudinal direction of the electrostatic chuck and rotate the adsorption belt 104;
And a clamping roller 110 installed outside the adsorption belt 104 and moving in parallel along the circumference of the first roller 106,
Characterized in that the radius of the first roller (106) is smaller than the radius of curvature of the cover glass (60). delete
KR1020140047789A 2014-04-22 2014-04-22 A device for laminating on a curved cover glass using a suction belt KR101470935B1 (en)

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KR1020140047789A KR101470935B1 (en) 2014-04-22 2014-04-22 A device for laminating on a curved cover glass using a suction belt

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Application Number Priority Date Filing Date Title
KR1020140047789A KR101470935B1 (en) 2014-04-22 2014-04-22 A device for laminating on a curved cover glass using a suction belt

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107161386A (en) * 2017-06-26 2017-09-15 东莞市万丰纳米材料有限公司 Laminating machine in bend glass vacuum
US10807317B2 (en) * 2016-04-28 2020-10-20 Lens Technology (Changsha) Co., Ltd. Film-applying device and method for 3D glass with two opposite curved edges
CN114248529A (en) * 2021-12-16 2022-03-29 武汉天马微电子有限公司 Flexible screen laminating device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100026756A (en) * 2008-09-01 2010-03-10 (주)화백엔지니어링 Film adhering apparatus for rounded surface and film adhering method using the same
KR20120110418A (en) * 2011-03-29 2012-10-10 주식회사 아이스피 Fllm lnspection apparatus
KR20130080295A (en) * 2012-01-04 2013-07-12 엘지전자 주식회사 Film laminating apparatus for a flat or curved plate member
KR20140002491A (en) * 2012-06-29 2014-01-08 삼성디스플레이 주식회사 Display device, manufacturing method of the same and manufacturing device of the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100026756A (en) * 2008-09-01 2010-03-10 (주)화백엔지니어링 Film adhering apparatus for rounded surface and film adhering method using the same
KR20120110418A (en) * 2011-03-29 2012-10-10 주식회사 아이스피 Fllm lnspection apparatus
KR20130080295A (en) * 2012-01-04 2013-07-12 엘지전자 주식회사 Film laminating apparatus for a flat or curved plate member
KR20140002491A (en) * 2012-06-29 2014-01-08 삼성디스플레이 주식회사 Display device, manufacturing method of the same and manufacturing device of the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10807317B2 (en) * 2016-04-28 2020-10-20 Lens Technology (Changsha) Co., Ltd. Film-applying device and method for 3D glass with two opposite curved edges
CN107161386A (en) * 2017-06-26 2017-09-15 东莞市万丰纳米材料有限公司 Laminating machine in bend glass vacuum
CN114248529A (en) * 2021-12-16 2022-03-29 武汉天马微电子有限公司 Flexible screen laminating device
CN114248529B (en) * 2021-12-16 2023-10-27 武汉天马微电子有限公司 Flexible screen laminating device

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