JPH09220763A - Apparatus and method for bonding anisotropic conductive tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized compact anisotropic conductive (ACF) bonding apparatus and a ACF bonding method capable of automatically bonding the ACF to the electrode of the display panel being the display of electronic machinery with good workability. SOLUTION: A movable table 1 positioning a display panel 8, a supply unit 10 leading out a laminated tape 50 of an ACF and a separator, the transfer unit 20 transferring the laminated tape 50 to the display panel 8, a thermal pressure bonding unit 30 heating the ACF to bond the same to the display panel 8 and a peel unit 50 peeling the separator on the ACF are provided. The laminated tape 50 is led out of the supply unit 10 in parallel to the edge part of the display panel 8 and transferred to the display panel 8 as it is by the transfer unit 20. Subsequently, a plurality of the laminated tapes 50 are collectively bonded by the thermal pressure bonding element 32 of the thermal pressure bonding unit 30 and, thereafter, the separators are peeled off by the self-adhesive tape of the peel unit 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sticking device and a sticking method for an anisotropic conductive tape for assembling a display panel.

[0002]

2. Description of the Related Art A display panel, which is a display of an electronic device such as a personal computer or a word processor, is assembled from a glass plate or the like. Electrodes are formed on the edges of the display panel, and electronic components that are drivers are bonded to the electrodes.

As a method of bonding electronic components,
A method using an anisotropic conductive tape (hereinafter referred to as ACF) is known. This method is a method in which a laminated tape obtained by laminating an anisotropic conductive tape and a separator is pasted on the electrode at the edge of the display panel, the separator is peeled off, and the anisotropic conductive tape having adhesiveness is used for electronic parts. It is for bonding leads.

[0004]

However, conventionally,
Since each work such as sticking the laminated tape to the display panel and peeling the separator has been performed individually, there has been a problem that the whole sticking device becomes large and the work efficiency is low.

In view of the above, the present invention provides an anisotropic conductive tape sticking apparatus and sticking method which has a compact and compact overall structure and can perform work from sticking of a laminated tape to peeling of a separator as a series of works with good workability. The purpose is to provide.

[0006]

To this end, the present invention provides a movable table on which a display panel is mounted, and a laminated tape which is disposed above the movable table and is laminated with an anisotropic conductive tape and a separator. A supply unit, a pull-out unit that draws out the laminated tape from this supply unit, a transfer unit that transfers the laminated tape that is drawn out from this supply unit onto an electrode at the edge of the display panel, and a transfer unit that transfers onto this electrode A thermocompression-bonding unit that heats the laminated laminated tape while applying pressure to adhere the anisotropic conductive tape to the electrode, and a peeling unit that peels the separator on the anisotropic conductive tape that has been bonded. A sticking device for an anisotropic conductive tape, comprising an adsorbent provided in a transfer unit for adsorbing a laminated tape and a longitudinal direction of a thermocompressor provided in a thermocompression bonding unit, and a peeling device. The peeling direction of the separator by the adhesive tape provided in the unit is the same as the drawing direction of the laminated tape drawn by the drawing unit from the supply unit, and the display panel can be moved in the direction orthogonal to this drawing direction by the movable table. And

Further, a step of leading out the laminated tape of the anisotropic conductive tape and the separator from the supply unit in parallel with the edge portion of the display panel positioned on the movable table, and the transfer unit on the upper surface of the led laminated tape. Vacuum suction with the adsorbent and cutting the laminated tape into a predetermined length with a cutter, and moving the adsorbent relative to the display panel to move the laminated tape to an electrode on the edge of the display panel. A step of transferring onto the laminated tape, a step of pressing a long thermocompressor parallel to the edge of the display panel against the laminated tape to thermocompress the anisotropic conductive tape to the electrode, and a peeling unit. The pressure-sensitive adhesive tape is pressed against the separator on the anisotropic conductive tape, and the separator is peeled off by moving the pressure-sensitive adhesive tape relative to the separator along the edge. To constitute a sticking method sex conductive tape.

[0008]

According to the above structure, work from sticking the laminated tape to the display panel to peeling the separator can be performed as a series of work with good workability.

Next, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of an ACF attaching apparatus according to an embodiment of the present invention, FIG. 2 is a front view of the supply unit and transfer unit, FIG. 3 is a front view of the thermocompression bonding unit, and FIG. 4 is the same. FIG. 5 is a front view of the peeling unit, and FIG. 5 is a sectional view of the laminated tape.

In FIG. 1, 1 is a movable table,
The X table 2, the Y table 3, the Z table 4, and the rotary table 5 are stacked. 6 is an X-direction motor,
Reference numeral 7 is a Y-direction motor. A display panel 8 is placed on the rotary table 5, and when the movable table 1 is operated, the display panel 8 is moved in an arbitrary direction and positioned at a predetermined position.

A supply unit 10, a transfer unit 20, a thermocompression bonding unit 30, and a peeling unit 40 are provided above the movable table 1. Next, each unit will be described. 1 and 2, the supply unit 10
Includes a case 11, a supply reel 12 incorporated in the case 11, a guide roller 13, and the like. A laminated tape 50 is wound around the supply reel 12. As shown in FIG. 5, the laminated tape 50 has an adhesive ACF 51.
The separator 52 is laminated on the surface of the. This separator 52 is laminated for the convenience of handling and managing the ACF 51.
Prior to bonding to CF51, ACF51
Peeled off from

1 and 2, a drawer unit 14 is provided in front of the case 11. The drawer unit 14 has a chuck claw 15. A slider 16 is provided on the rear surface of the drawer unit 14, and the slider 16 is slidably fitted to a guide rail 17 in the X direction parallel to the edge of the display panel 8. A scissors-type cutter 18 is provided on the front surface of the case 11.

1 and 2, the transfer unit 2
0 is the laminated tape 5 which is led out from the case 11 in the X direction.
It is located above 0. 21 is a transfer head,
The adsorber 22 is provided at the lower part thereof. The adsorbent 22 is long in a direction parallel to the edge of the display panel 8 so that the laminated tape 50 drawn out from the supply unit 10 can be vacuum-adsorbed as it is and transferred to the edge of the display panel 8. The transfer head 21 is connected to the lower end of the rod 24 of the cylinder 23. The cylinder 23 is installed slidably along the guide rail 25 in the Y direction.

The drawer unit 14 advances and retracts in parallel with the edge of the display panel 8 positioned on the movable table 1 in the X direction (arrow N1), and chucks the tip of the laminated tape 50 with the chuck claw 15. The laminated tape 50 is led out of the case 11 by a predetermined length. The transfer head 21 slides along the guide rails 25 in the Y direction and is positioned right above the laminated tape 50 drawn out from the case 11, where the rod 24 of the cylinder 23 protrudes to descend and the suction head 22. Sucks the upper surface of the laminated tape 50 under vacuum. Then, the cutter 18 cuts the laminated tape 50 into a predetermined length, the rod 24 of the cylinder 23 is pulled in, the transfer head 21 rises, and the cut laminated tape 50 is picked up by the adsorber 22.

At this time, the movable table 1 is operated, the display panel 8 is located below the transfer head 21, and the rod 24 of the cylinder 23 projects and the transfer head 21 descends, whereby the suction member 22 is moved. The laminated tape 50 that has been vacuum-adsorbed on is transferred onto the electrode at the edge of the display panel 8, and then the adsorbent 22 releases the vacuum adsorption state and rises. With the above, the transfer of the laminated tape 50 to the display panel 8 is completed. As described above, according to the present device, the laminated tape 50 led out from the supply unit 10 can be transferred onto the electrode at the edge of the display panel 8 by the transfer unit 20 with good workability.

In FIGS. 1 and 3, the thermocompression bonding unit 30 comprises a holder 31, a thermocompression bonding element 32 held by the holder 31, and a cylinder 33. The rod 34 of the cylinder 33 is connected to the holder 31, and the thermocompression bonding element 32 moves up and down when the rod 34 projects. The thermocompression bonding element 32 is elongated in the X direction, that is, in the direction parallel to the edge of the display panel 8.

A plurality of laminated tapes 50 are transferred straight on the electrodes on the edges of the display panel 8 by the transfer unit 20. When the transfer operation is completed, the movable table 1 is activated. Then, the laminated tape 50 on the upper surface of the display panel 8 is positioned immediately below the thermocompression bonding element 32. Then, the rod 34 of the cylinder 33 projects and the thermocompressor 32 descends, heating the laminated tape 50 while applying pressure to the display panel 8. As a result, the plurality of ACFs 51 are simultaneously attached to the electrodes of the display panel 8 at once by the thermocompression-bonding elements 32 that are long in the X direction, and then the thermocompression-bonding elements 32 move up to apply pressure.
Release the heating state.

Next, the peeling unit 40 will be described with reference to FIGS. Reference numeral 41 is a case, in which a supply reel 42 and a take-up reel 43 are provided, and a rolling roller 44 is provided below the case. An adhesive tape 45 is wound around the supply reel 42. A slider 46 is provided above the case 41, and the slider 46 is slidably fitted to a guide rail 47 in the X direction. A camera 48 is provided on the front surface of the case 41. The camera 48 recognizes the attached state of the ACF 51.

As described above, the thermocompressor 32 causes the AC
After sticking F51 to the display panel 8, the movable table 1 is operated to position the laminated tape 50 on the display panel 8 directly below the rolling roller 44. Then, as shown in FIG. 4, the rolling roller 44 is pressed against the upper surface of the laminated tape 50 and relatively moved in the X direction along the guide rail 47. At this time, if the adhesive tape 45 is pulled out from the supply reel 42 and wound on the take-up reel 43 while sliding along the rolling roller 44, the separator 52 on the ACF 51 will change the adhesive tape 4 to the adhesive tape 4.
5 and transferred from the ACF 51. After the peeling, the camera 48 is moved on the ACF 51 and the adhered state of the ACF 51 is observed.

As described above, the longitudinal direction of the adsorbent 22 provided in the transfer unit 20 for adsorbing the laminated tape 50 and the thermocompression bonding element 32 provided in the thermocompression bonding unit 30,
The peeling direction of the separator 52 by the adhesive tape 45 provided in the peeling unit 40 is the same as the drawing direction (X direction) of the laminated tape 50 drawn by the drawing unit 14 from the supply unit 10, and the movable table 1 is also provided.
By making the display panel 8 movable in a direction (Y direction) orthogonal to the lead-out direction (X direction) by the above, these various elements work in cooperation with each other to facilitate work, and moreover, the entire ACF sticking apparatus. Is configured compactly.

This ACF sticking apparatus has the above-mentioned structure, and the overall operation will be briefly described below. In FIGS. 1 and 2, the drawer unit 14 advances in the X direction, chucks the tip of the laminated tape 50 protruding from the case 11 with the chuck claws 15, and then retracts to draw the laminated tape 50 by a predetermined length. To do. Next, the suction element 22 of the transfer head 21 vacuum-sucks the laminated tape 50, and the cutter 18 cuts the laminated tape 50 into a predetermined length.

At this time, the movable table 1 is operated and the display panel 8 is moving to the position just below the transfer head 21, and the transfer head 21 moves up and down to move the laminated tape 50 to the edge portion of the display panel 8. Transfer to the electrode of. The above operation is repeated a plurality of times, and a plurality of laminated tapes 50 are linearly transferred to the edge portion of the display panel 8.

Next, as described above, the plurality of ACFs 51 are attached to the display panel 8 by the thermocompression bonding element 32 of the thermocompression bonding unit 30.
ACF after peeling unit 40
The separator 52 on 51 is peeled off and collected.

When the attachment of the ACF 51 to the edge of one side of the display panel 8 is completed as described above, the rotary table 5 is operated and the display panel 8 is horizontally rotated 90 °.
Then, on the electrode on the next side, the AC
Stick F51. ACFs 51 are usually attached to three sides of the display panel 8. The display panel 8 on which the ACF 51 has been attached is sent to the next step, and the leads of the electronic component are bonded to the ACF 51.

[0025]

According to the present invention, work from sticking the laminated tape to the display panel to peeling the separator can be performed as a series of work with good workability. Further, since the supply unit, the pull-out unit, the transfer unit, the thermocompression bonding unit, the peeling unit and the like are arranged with their orientations set so that they can work in good workability in cooperation with each other, the ACF can operate at high speed. Can be attached to the display panel with, and A
The entire CF sticking device can be made compact and compact.

[Brief description of drawings]

FIG. 1 is a perspective view of an ACF attaching apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of a supply unit and a transfer unit of the ACF sticking apparatus according to the embodiment of the present invention.

FIG. 3 is a front view of a thermocompression bonding unit of the ACF bonding apparatus according to the embodiment of the present invention.

FIG. 4 is a front view of a peeling unit of the ACF attaching apparatus according to the embodiment of the present invention.

FIG. 5 is a cross-sectional view of a laminated tape of an ACF attaching device according to an embodiment of the present invention.

[Explanation of symbols]

 1 Movable Table 8 Display Panel 10 Supply Unit 14 Drawer Unit 20 Transfer Unit 21 Transfer Head 22 Adsorber 30 Thermocompression Bonding Unit 32 Thermocompression Bonder 40 Peeling Unit 45 Adhesive Tape 50 Laminated Tape 51 ACF 52 Separator

Claims (2)

[Claims] 1. A movable table on which a display panel is placed, a supply unit which is disposed above the movable table and supplies a laminated tape in which an anisotropic conductive tape and a separator are laminated, and a laminated tape from the supply unit. A pull-out unit for pulling out, a transfer unit for transferring the laminated tape drawn out from the supply unit onto the electrode at the edge of the display panel, and heating the laminated tape transferred onto the electrode while applying pressure. A sticking device for an anisotropic conductive tape, comprising: a thermocompression bonding unit for sticking an anisotropic conductive tape to the electrode; and a peeling unit for peeling a separator on the stuck anisotropic conductive tape. A longitudinal direction of an adsorbent included in the transfer unit for adsorbing the laminated tape and a thermocompression bonder included in the thermocompression bonding unit, and the peeling unit. The separating direction of the separator by the adhesive tape is the same as the drawing direction of the laminated tape drawn from the supply unit by the drawing unit, and the display table is movable by the movable table in the direction orthogonal to the drawing direction. An anisotropic conductive tape sticking device characterized in that 2. A step of leading out a laminated tape of an anisotropic conductive tape and a separator from a supply unit in parallel with an edge portion of a display panel positioned on a movable table, and transferring an upper surface of the led laminated tape. A step of vacuum-adsorbing with a suction element of the unit and cutting the laminated tape with a cutter to a predetermined length, and moving the suction element relative to the display panel to move the laminated tape to an edge portion of the display panel. A step of transferring onto the electrode, a step of pressing a long thermocompressor parallel to the edge of the display panel against the laminated tape to thermocompress the anisotropic conductive tape to the electrode,
A step of pressing an adhesive tape provided in a peeling unit against a separator on the anisotropic conductive tape and moving the adhesive tape relatively along the edge to peel off the separator. How to attach anisotropic conductive tape.