TW202242501A - Attaching device capable of improving the flatness of attaching the polarizing plate so as to reduce the probability of poor attaching - Google Patents

Abstract

An attaching device which is suitable for attaching a polarizing plate to a panel, wherein a first direction, a second direction and a third direction perpendicular to each other are defined. The attaching device includes a machine base, a material feeding unit, and an operating unit. The material feeding unit includes a first conveying member for conveying the polarizing plate along the first direction, and a second conveying member for conveying the panel along the second direction. The operating unit includes a carrying stage moveable along the third direction, two control members respectively installed on two sides of the carrying stage, a bonding plate completely attached to the polarizing plate and connected to the control members, and a rolling member for rolling along the second direction to closely attach the polarizing plate to the panel. With the arrangement of the bonding plate, the flatness of attaching the polarizing plate can be improved, so as to reduce the probability of poor attachment.

Description

Attachment device

The invention relates to a production equipment, in particular to a sticking device for sticking polarizing plates.

Referring to Fig. 1, illustrate a kind of existing bias device 91, be applicable to a diaphragm 92 is pasted on a glass substrate 93, one side surface of this diaphragm 92 is covered with a release film 921 that can be torn off, A left-right direction T and an up-down direction H perpendicular to the left-right direction T are defined. The biasing device 91 includes a conveying member 911 that can move along the left-right direction T and the up-down direction H and is suitable for conveying the film 92 , and a carrier that is suitable for placing the glass substrate 93 and is located relatively below the conveying member 911 . Platform 912, several first suction cups 913 that are arranged on the conveying member 911 and are suitable for fixing the film 92, a second suction cup 914 that is arranged on the stage 912 and that are suitable for fixing the glass substrate 93, a can The bonding wheel 915 that moves along the left-right direction T and is suitable for tearing off the release film 921, and the two can move toward the diaphragm 92 along the up-down direction H, and can roll the diaphragm 92 along the left-right direction T Roller 916.

Referring to FIG. 2 and in conjunction with FIG. 1 , the use of the biasing device 91 is described. First, the glass substrate 93 is placed on the stage 912, and the glass substrate 93 is fixed by the suction force of the second suction cup 914, and the glass substrate 93 is fixed. The diaphragm 92 is fixed on the conveying member 911 by the suction force of the first suction cups 913, and the conveying member 911 will move to the top of the stage 912 along the left-right direction T, and align the diaphragm 92 Align the glass substrate 93. During the attaching operation, the bonding wheel 915 first adheres to the release film 921 of the film 92 and moves along the left-right direction T to tear the release film 921 away from the film 92 .

Then the conveying member 911 will move toward the stage 912 along the vertical direction H, and when the rollers 916 move to the center of the film 92 along the vertical direction H, one of the rollers 916 will first move from the The center of the diaphragm 92 moves along the left-right direction T, so that a part of the diaphragm 92 is attached to the glass substrate 93 first, and the other roller 916 will roll along the left-right direction T to the other side, To attach another part of the film 92 to the glass substrate 93, the attachment operation is completed.

But these first suction cups 913 of this biasing device 91 fix this membrane 92 in the mode of multi-point spaced distribution, so under the situation that this membrane 92 itself has flexibility, this membrane 92 may Some positions cannot be reliably supported, and the diaphragm 92 is likely to be warped and uneven, resulting in poor attachment. In addition, in the way of sticking one part of the film 92 first, and then sticking the other part of the film 92, because one of the rollers 916 presses against the film 92 first, there will be creases, so that there will be sticking In the case of initial bubbles, it is easy to produce defective products, resulting in poor production yield.

Therefore, the object of the present invention is to provide a sticking device that improves the smoothness of sticking and reduces the generation of sticking air bubbles.

Therefore, the attaching device of the present invention is suitable for attaching a polarizing plate to a panel. The polarizing plate includes a protective film covering the surface, defining a first direction, a second direction, and a direction perpendicular to each other. third direction. The attaching device includes a machine base, a feeding unit installed on the machine base, and an operation unit installed on the machine base.

The feeding unit includes a first transport member adapted to transport the polarizing plate along the first direction, and a second transport unit installed on the opposite side of the first transport unit and adapted to transport the panel along the second direction. Moving pieces.

The working unit includes a stage that is located relatively below the second conveying member and can move along the third direction, two control members that are respectively arranged at two ends of the stage along the second direction at intervals, and one that is suitable for complete A sticking plate attached to the side of the polarizing plate opposite to the protective film and connected to the control parts at both ends, and a sticking plate installed between the stage and the sticking plate, and extending from one end of the sticking plate along the Rolling in the second direction makes the polarizing plate adhere to the rolling part of the panel.

The effect of the present invention lies in the design that the polarizing plate can be fully pasted through the bonding plate, and the rolling part starts rolling from one end of the bonding plate without directly touching the polarizing plate. , can effectively improve the flatness of the polarizing plate when laminating, and reduce the creases generated by the polarizing plate being pushed against, so as to avoid the generation of air bubbles in the pasting.

Referring to FIG. 3 , it is an embodiment of the attaching device of the present invention, which is suitable for attaching a polarizer 4 to a panel 5 . The polarizer 4 includes a protective film 41 covering the surface. This embodiment includes a machine base 1 , a feeding unit 2 installed on the machine base 1 and suitable for transporting the polarizer 4 and the panel 5 , and a working unit 3 installed on the machine base 1 . In actual implementation, the polarizers 4 are respectively attached to the upper and lower sides of the panel 5 , but this embodiment uses a single side as an example for illustration, and the other side is attached in the same way so it will not be repeated. In addition, this embodiment can also be applied to pasting wide viewing angle films, optical compensation films, optical brightness enhancement films, PE protective films, etc., and is not limited thereto.

A first direction D1, a second direction D2, and a third direction D3 perpendicular to each other are defined. Specifically, the machine base 1 is a platform extending along the first direction D1 and the second direction D2, and is used for carrying the feeding unit 2 and the working unit 3 . The feeding unit 2 includes a first conveying member 21 adapted to convey the polarizer 4 along the first direction D1, and a first conveying member 21 installed on the opposite side of the first conveying member 21, and adapted to move along the second direction D2. The second conveyor 22 for the panel 5 is conveyed. Specifically, the first conveying member 21 and the second conveying member 22 use a vacuum negative pressure mechanism to fix the polarizer 4 and the panel 5 respectively, and electrostatic adsorption can also be used. It will not fall off easily.

The working unit 3 includes a stage 31 located relatively below the second conveying member 22 and movable along the third direction D3, and two controllers arranged at two ends of the stage 31 at intervals along the second direction D2. Part 32, a bonding plate 33 that is suitable for being completely attached to the side of the polarizing plate 4 opposite to the protective film 41 and whose two ends are respectively connected to the control parts 32, and a bonding plate 33 that is installed on the carrier 31 and the bonding plate 33 A rolling member 34 between them, a tear-off member 35 arranged on the other side of the first direction D1 relative to the second conveying member 22, and a tearing member 35 located below the second conveying member 22 and capable of moving along the second direction The alignment member 36 that D2 moves.

Referring to Fig. 4 and cooperating with Fig. 3, the laminated board 33 is rectangular and has a base layer 331 spaced apart from the platform 31 and mounted on the control parts 32 at both ends, and a base layer 331 covered on the base layer 331 away from the base layer. One side of the carrier 31 is suitable for absorbing the adhesive layer 332 of the polarizer 4 . Each control member 32 has an adjustment shaft 321 that is connected to one end of the base layer 331 and is driven to adjust the tension of the base layer 331, and two are respectively installed on the two ends of the adjustment shaft 321, and can selectively apply a load on The pneumatic cylinder 322 of the adjustment shaft 321, in actual use, each control member 32 can also use two electric motors to replace the pneumatic cylinders 322, as long as it can be controlled by the operator to adjust the tension. One end of each control member 32 and the base layer 331 is fixed by screw locking, mainly to prevent one end of the base layer 331 from detaching when the adjustment shaft 321 is driven to adjust the tension of the base layer 331 The situation of corresponding control member 32.

In actual implementation, the base layer 331 is a plate made of stainless steel, and can also be made of metal aluminum, acrylic, ethyl phthalate, polypropylene, and polyethylene. limit. The adhesive layer 332 is a low-viscosity coating, which is mainly made of silicone rubber after molding and curing. You can also choose to use PVC glue, OCA glue, AB mixed glue, rubber, etc. according to actual needs. It is not limited to this. In addition, the size of the adhesive layer 332 can be adjusted according to the size of the selected polarizer 4 . It should be noted that, usually, the area of the adhesive layer 332 is smaller than the area of the base layer 331, because the adjusting shaft 321 adjusts the tension by winding and stretching the two ends of the base layer 331 respectively, so it is necessary to prepare The area required for the adjustment shafts 321 to wrap around the two ends of the base layer 331 is reserved so that the adjustment shafts 321 will not wrap around the two ends of the adhesive layer 332 .

Referring to FIG. 6 , the rolling member 34 is a roller rotating on its own axis, and can be driven by a driving mechanism to move along the second direction D2 between a starting position and an ending position. When at the starting position, the rolling member 34 is positioned at one end of the fitting plate 33 and presses against the fitting plate 33, and at the end position, the rolling member 34 is positioned at the other end of the fitting plate 33, so that the The polarizer 4 is bonded to the panel 5 . As for the driving mechanism, it is not the focus of the present invention, so it will not be described in detail here. It should be particularly noted that, because the bonding plate 33 only relies on the force provided by the control members 32 to maintain the tension, and there are no other mechanisms that can lean on it, therefore, the rolling displacement speed of the rolling member 34 is the same as that of the pressing member 34 against the The force of the bonding plate 33 needs to match the tension value set by the control parts 32, so as to avoid the situation that the bonding plate 33 cannot be kept flat due to too fast displacement of the rolling part 34 or too strong force.

Referring again to Fig. 3, the tear-off member 35 is a kind of tear-off jig, and can move along the second direction D2 to tear off the protective film 41 of the polarizer 4, or it can be a roller with its own stickiness, as long as it can be removed The protective film 41 can be torn off from the polarizer 4 . The alignment member 36 is specifically a alignment system using CCD visual images, mainly using the CCD lens to capture the alignment mark of the polarizer 4 to obtain the actual position, and then compare it with the standard position to know Whether the polarizer 4 is offset on the bonding plate 33 , so as to improve the bonding accuracy.

Referring to Figures 5 and 6, and in conjunction with Figure 4, when using this embodiment, the operator first fixes the two ends of the base layer 331 of the laminated board 33 on the control parts 32 respectively, and sets the tension values to be set respectively. Input the pneumatic cylinders 322, the pneumatic cylinders 322 will drive the adjustment shafts 321 to wind the lamination board 33, so that the base layer 331 and the adhesive layer 332 are in a state of tension through tension, and the lamination of the lamination board 33 is completed. Installation work. It should be added that the adhesive layer 332 of the bonding plate 33 can be completely bonded to the polarizing plate 4, and the flatness of the bonding plate 33 can be adjusted by cooperating with the control parts 32, so that the warping of the polarizing plate 4 can be reduced. bending, and there is a problem of poor adhesion.

Next, the first transport member 21 will transport the polarizer 4 along the first direction D1, and in the process of transporting the polarizer 4 to the bonding plate 33, it will first go through the process of cleaning the surface of the polarizer 4 to avoid During the attaching process, foreign matter falls onto the polarizing plate 4 , thereby reducing the occurrence of defects in pasting foreign matter. When the polarizer 4 is placed on the adhesive layer 332 of the laminated plate 33, the rolling member 34 is located below the base layer 331 of the laminated plate 33, and moves along the second direction from the starting position of one end of the base layer 331. D2 moves to the end position, so that the polarizer 4 is fixed on the adhesive layer 332 .

Next, as shown in FIG. 3 and FIG. 5 , the alignment member 36 moves above the polarizer 4 along the second direction D2, and uses a lens to grab the alignment mark to confirm that the polarizer 4 is not in position. After the deviation, the tearing member 35 moves along the second direction D2 from the other side of the first direction D1 and tears off the protective film 41 of the polarizer 4, the second conveying member 22 will move along the second direction D2. Direction D2 moves the panel 5 to a fitting position. It should be added that the adhesive force of the adhesive layer 332 attached to one side of the polarizer 4 needs to be greater than the strength of the tear-off member 35 to tear off the protective film 41 of the polarizer 4, so as to avoid tearing off the protective film. 41, the polarizer 4 is taken away from the original fixed position. Finally, as shown in FIG. 6 , the stage 31 moves along the third direction D3 to move the polarizer 4 to the attaching position. The rolling member 34 rolls against the attaching plate 33 from the initial position along the second direction D2, and when the rolling member 34 moves to the end position, the polarizer 4 is attached to the panel 5, And complete the bonding operation.

The attaching operation of the polarizer 4 is handled by the bonding plate 33. In addition to providing the effect of absorbing the polarizer 4 on the entire surface, the rolling member 34 is separated from the polarizer 4 by the base layer 331. When the rolling member 34 rolls the bonding plate 33 to attach the polarizer 4 to the panel 5, it will not touch the polarizer 4 and provide a certain buffer protection, so that the polarizer 4 is not easy to There are creases, which can reduce the occurrence of bad air bubbles.

In summary, in this embodiment of the attaching device of the present invention, the polarizing plate 4 can be attached to the entire surface through the adhesive layer 332 of the attaching plate 33, and the rolling member 34 is pressed against the attaching plate 33. The base layer 331 is attached from one end of the base layer 331. During the attachment operation, the polarizer 4 is attached to the panel 5 without directly touching the polarizer 4. It can effectively improve the flatness of the polarizing plate 4 during lamination, reduce the creases caused by the abutment of the polarizing plate 4, reduce the occurrence of bubble defects, and effectively improve the lamination yield. Therefore, can really reach the purpose of the present invention.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

1: base 2: Feeding unit 21: The first transport piece 22: The second conveying piece 3: Operating unit 31: carrier 32: Control parts 321:Adjust the axis 322: pneumatic cylinder 33: Laminated board 331: Grassroots 332: Adhesive layer 34: Rolled parts 35: Tear off parts 36: Alignment parts 4: polarizer 41: Protective film 5: panel D1: the first direction D2: Second direction D3: Third direction

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a schematic diagram illustrating an existing biasing device; Fig. 2 is a schematic diagram illustrating the attachment method of the biasing device; Fig. 3 is a perspective view illustrating an embodiment of the sticking device of the present invention; Fig. 4 is a perspective view illustrating the connection relationship between the second control member and a laminated board of this embodiment; Fig. 5 is a schematic diagram illustrating the relative relationship among a second carrier, a stage and a polarizing plate in this embodiment; and Fig. 6 is a schematic diagram with a different angle of view from Fig. 5 , which illustrates the use state of this embodiment in conjunction with Fig. 5 .

1: base

2: Feeding unit

21: The first transport piece

22: The second conveying piece

3: Operating unit

31: carrier

32: Control parts

33: Laminated board

34: rolling parts

35: Tear off parts

36: Alignment parts

4: polarizer

41: Protective film

5: panel

D1: the first direction

D2: Second direction

D3: Third direction

Claims (5)

An attaching device, suitable for attaching a polarizing plate to a panel, the polarizing plate includes a protective film covering the surface, defining a first direction, a second direction, and a third direction perpendicular to each other , the attachment device contains: a base; A feeding unit, installed on the machine base, and includes a first conveying member suitable for transporting the polarizing plate along the first direction, and a first conveying member installed on the opposite side of the first conveying member, and is suitable for transporting the polarizer along the first direction. a second conveyor for conveying the panel in a second direction; and A working unit is installed on the machine base, and includes a platform that is located relatively below the second conveying member and can move along the third direction, and two are arranged on the platform at intervals along the second direction. control parts at both ends, a bonding plate suitable for being completely attached to the polarizing plate opposite to the protective film and having two ends respectively connected to the control parts, and a bonding plate installed between the carrier and the bonding plate, And rolling along the second direction from one end of the bonding plate to make the polarizing plate bond to the rolling part of the panel. The sticking device as described in claim 1, wherein, the sticking board has a base layer spaced from the carrier and installed on the control parts at both ends, and a layer covering the base layer away from the carrier One side, and is suitable for absorbing the adhesive layer of the polarizer. The attaching device as described in claim 2, wherein each control member has an adjustment shaft connected to one end of the base layer and driven to adjust the tension of the base layer, and two are respectively installed on both ends of the adjustment shaft, And can selectively apply the load to the pneumatic cylinder of the adjustment shaft. The attaching device according to claim 1, wherein the working unit further includes a device disposed on the other side of the first direction relative to the second conveying member, and is adapted to move along the second direction to tear off the polarized light The tear-off piece of the protective film of the board. The attaching device according to claim 1, wherein the working unit further includes an alignment device which is located under the second conveying member and can move along the second direction, and is suitable for detecting the alignment mark of the polarizing plate pieces.

Images