KR20070084688A - Anisotropic conductive film attaching apparatus - Google Patents

Abstract

An ACF(Anisotropic Conductive Film) attaching apparatus is provided to perform an ACF tape replacing work as the simplification, standardization and numerical work, thereby reducing the replacing working time. A supply member(110) supplies a new ACF tape. Compressing members(161,162) adhere the supplied ACF tape. A recovery member(120) winds the used ACF tape. Guides(130,140) guide the movement of the ACF tape between the supply member and the recovery member. A guide control member offers a moving path with different width according to the standard of the ACF supplied from the inside of the guide. The guide control member comprises a moving path offering member for offering one or more moving path having the different width. A moving path selecting member selects a specific moving path among several moving paths. A moving path display member displays the selected moving path. The moving path offering member forms grooves with different width to each corner of a polygon object in order to construct the moving path.

Description

ACF attachment device {ANISOTROPIC CONDUCTIVE FILM ATTACHING APPARATUS}

1 shows an ACF attachment device in accordance with the present invention.

2 shows a half cut ACF tape.

3a and 3b are views showing the configuration of the first guide in the ACF attachment device according to the present invention.

Figure 3c is a view showing a guide adjuster provided in the first guide in the ACF attachment device according to the present invention.

<Explanation of symbols for main parts of the drawings>

100: ACF tape 110: supply unit

120: recovery unit 130: first guide

140: second guide 150: cutting portion

161: head portion 162: cylinder

310: polygonal structures 311 to 315: transfer path

320: rotating shaft 330: handle

The present invention relates to an ACF attachment device, and more particularly, to an ACF attachment device in which a conveyance path having a different width is selectively provided in the guide according to the specifications of the provided ACF tape.

A driver IC is required to drive the liquid crystal panel, and technologies for mounting the driver IC on the liquid crystal panel include chip on board (COB), tape automated bonding (TAB), and chip on glass (COG). In general, a TAB method is used for a liquid crystal panel having a low resolution, and a COG method is used for a liquid crystal panel having a high resolution.

The COG method is a technology for directly mounting a bumper of a driver IC and a pad of a liquid crystal panel. The driver IC having a fine connection pitch can be easily mounted, and the mounting area can be minimized, thereby achieving ultra-thin and light weight.

In the COG method, an anisotropic conductive film (ACF) is used to attach the driver IC to the liquid crystal panel and to conduct the pad electrode of the liquid crystal panel and the bumper electrode of the driver IC. Therefore, in the said mounting process, the apparatus for attaching ACF to the pad part of a liquid crystal panel, what is called an ACF attachment apparatus is required.

Conventional ACF attaching apparatus includes a stage on which a liquid crystal panel is placed, a supply portion in which an ACF tape is wound in a reel form, a recovery portion in which an used ACF tape is wound in a reel form, and is located between the supply portion and the recovery portion. It is composed of a pair of guides for guiding driving, and a crimping portion disposed on the running path of the ACF tape to peel the ACF layer from the ACF tape and attach it to the liquid crystal panel.

Once the liquid crystal panel is loaded and moved to the stage, the recovery part is rotated to draw in the ACF tape wound on the supply part, and the ACF tape moves from the supply part to the recovery part along the guide. At this time, when the ACF tape is moved to the attachment position, the pressing portion located on the upper side is lowered to press the ACF tape, the ACF layer separated from the ACF tape is attached to the liquid crystal panel.

In general, the size of the IC chip mounted on the liquid crystal panel varies according to the screen size and performance characteristics, and since the IC chips of various standards are combined and mounted on the same liquid crystal panel, the ACF attachment device can cope with ACF tapes of various standards. Should be

Therefore, conventional ACF attachment devices are provided with a width adjusting screw in the guide. That is, since the conveying path for guiding the running of the ACF tape is formed inside the guide, when the ACF tape is replaced, the width of the conveying path must be adjusted to match the width.

In this process, two aspects should be considered. That is, since the ACF tape travels along the inner path of the guide, the width of the transport path must be at least larger than the ACF tape, and the error that can occur when the ACF tape is attached to the liquid crystal panel, that is, the alignment margin, must be small. The width should be minimized.

However, it is not easy for an inexperienced worker to adjust the width of the transport path in consideration of the above-described driving path and alignment margin, and even the skilled worker may use the mirror because the inside of the guide is not visible from the outside. It was inconvenient to make adjustments while observing the inside. That is, the conventional ACF attachment device has a high possibility of a process loss in the process of ACF tape replacement, ACF tape replacement process was very cumbersome.

 An object of the present invention is to provide an ACF attachment apparatus that can simplify, standardize, and dimension ACF tape replacement work by arranging a plurality of transfer paths corresponding to the specification of ACF tape in the guide and allowing the operator to select it. .

An apparatus for attaching an ACF according to the present invention for achieving the above object includes a supply unit for providing a new ACF tape, a crimping unit for attaching the provided ACF tape, a recovery unit in which the used ACF tape is wound, and the supply unit and the recovery unit. And a guide adjusting unit for guiding the transfer of the ACF tape between the sections, and a guide adjusting unit for providing a conveying path having a width different according to the specification of the ACF tape provided in the guide.

The guide adjusting unit includes a transport path providing means for providing at least one transport path having a different width, a transport path selecting means for selecting a specific transport path from among the transport paths, and a transport path display means for indicating the selected transport path. It is done.

Here, the conveying path providing means may be configured by forming grooves having different widths at each corner or each outer surface of the polygonal structure, and the conveying path selecting means may be composed of a circular dial or a rod-shaped switch. The conveying path display means may be configured in such a manner as to color mark the size of the transport path selectable on the front portion of the polygonal structure or on a separate rotating plate.

The conveying path providing means, the conveying path selecting means, and the conveying path displaying means are housed in the housing. The housing further includes an opening for displaying a conveying path formed by opening a predetermined region, and a specification of a selectable conveying path is displayed on a predetermined region of the housing by a color marking method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing the configuration of an ACF attachment device according to the present invention.

Referring to FIG. 1, the ACF attachment apparatus includes a supply unit 110, a recovery unit 120, guides 130 and 140, a cutting unit 150, a compression unit 161 and 162, a stage 170, and the like.

An ACF tape 100 is wound around the reel of the supply unit 110, and a used ACF tape 100 is gradually wound around the reel of the recovery unit 120. The ACF tape 100 is a layered tape material formed by adhering ACF to one surface of an elongated tape. As is known, ACF is formed by dispersing conductive particles in a thermosetting resin or a thermoplastic resin.

The recovery unit 120 is coupled to the servo motor to rotate the drive, the ACF tape 100 is driven toward the recovery unit 120 from the supply unit 110 by the rotation drive.

The guides 130 and 140 include a first guide 130 disposed on the supply unit 110 side and a second guide 120 disposed on the recovery unit 120 side, and the ACF tape 100 travels therebetween. To guide. That is, the ACF tape 100 released from the reel of the supply unit 110 is wound on the reel of the recovery unit 120 via the first guide 130 and the second guide 140.

The cutting part 150 is disposed near the first guide 130 and repeatedly cuts the ACF tape 100 to a predetermined length by repeatedly performing the vertical motion. Referring to FIG. 2, in this cutting operation, only the ACF layer 101 of the ACF tape 100 having a multi-layer structure is cut, and the remaining layer 102 performs half cutting without cutting. Therefore, the ACF tape 100 which has passed through the cutting part 150 is divided into sheet-shaped ACFs 101a,... 101d having a constant length L, and travels while it is adhered to the tape 102. do. 2 is an enlarged view of an area A1 of FIG. 1 and illustrates a half cutting process of the cutting unit 150.

The pressing parts 161 and 162 press the ACF tapes 101a, 101, and 101d cut by the cutting part 150 from the top to attach the head part 161 and the head to the liquid crystal panel (not shown) located at the bottom. It is comprised by the cylinder 162 which operates the part 161 up and down. In addition, in order to minimize damage that may occur to the liquid crystal panel during the pressing process, a buffer member formed of a material having rubber or other elasticity may be additionally disposed on the base surface of the head portion 161.

On the other hand, the conveying path for guiding the running of the ACF tape 100 is formed inside the guides 130 and 140, and rollers 131 and 141 for smoothing the running of the ACF tape 100 are arranged in an appropriate number. In particular, a guide adjustment unit capable of selectively varying the width of the transport path according to the width of the ACF tape 100 is provided.

The guide adjuster may include a transport path providing means for providing at least one transport path having a different width, a transport path selecting means for selecting a specific transport path among various transport paths, and a transport path display means for indicating the selected transport path. It can be arranged and configured.

Figure 3 is a view showing the configuration of the first guide in the ACF attachment device according to the present invention, Figure 3a is a front view of the first guide, Figure 3b is a view of the first guide from the bottom, Figure 3c It shows a guide adjusting portion provided in the first guide.

3A to 3C, the guide adjuster includes a polygonal structure 310 having grooves at each corner, which is accommodated in the housing 300, and a handle 330 for rotating the polygonal structure 310. Is provided outside the housing 300. In addition, the polygonal structure 310 and the handle 330 are coupled to the rotating shaft 320 passing through the housing 300.

The grooves 311,... 315 formed in the polygonal structure 310 provide a transport path through which the ACF tape travels, and provide a multi-mode transport path that varies in width depending on the specification of the ACF tape used. . For example, when the size of the ACF tape used is 2.0mm 2.5mm, 3.0mm, 3.3mm, 3.7mm, the grooves 311, .., 315 are formed to have a width slightly larger than this, so that the conveyance width margin is 0.2. In mm, the first mode has a width of 2.2 mm, the second mode has a width of 2.4 mm, the third mode has a width of 3.2 mm, the fourth mode has a width of 3.5 mm, and the width has a width of 3.9 mm. Provides a multi-mode transport path (311, ..., 315) consisting of five modes. At this time, the specific width of the transfer path (311, ..., 315) is determined in consideration of the running path and the alignment margin of the ACF tape to maximize the efficiency of the attachment process.

In the front part of the polygonal structure 310, the usage specification of the ACF tape corresponding to the mode is indicated in the form of a clolor marking (FIG. 3C), and the opening 301 having the open area in the housing 100 is shown. Is formed. Although not shown, a separate rotating plate may be disposed on the front surface of the polygonal structure 310, and the use standard of the ACF tape may be displayed on the rotating plate by color marking. Accordingly, the operator may select a specific mode while rotating the handle 330, and may check the selected mode through the opening 301 of the housing 300. At this time, for the convenience of the operator, the use standard of the ACF tape usable in each mode may be additionally color-marked on a predetermined area (A2 area) of the housing 300.

The handle 330 for rotating the polygonal structure 310 may be configured in various forms, such as a rod-shaped switch, a circular dial. Here, it consisted of the dial type which has a diameter more than a predetermined magnitude | size, and formed the processus | protrusion along the outer surface. This dial type is easy to rotate even with a small force, has the advantage of less rotational sliding.

Therefore, during the ACF tape replacement operation, the operator selects a suitable mode by rotating the handle 330 provided in the guide adjusting unit, and thus a new transfer path suitable for the replaced ACF tape 100 is provided inside the guide 130. Work can be made quickly and easily.

The operation of the ACF attachment device having such a structure will be described with reference to FIG. 1 as follows.

First, when the liquid crystal panel (not shown) is transferred on the stage 170 by the transfer member, the recovery unit 120 is driven to draw the ACF tape 100 of the supply unit 110, and thus the supply unit 110. ACF tape 100 released from the) is maintained toward the recovery unit 120 while maintaining a constant speed along the travel path guided by the first and second guides 130 and 140.

Subsequently, the cutting unit 150 half-cuts the ACF tape 100 by repeating the vertical movement at an appropriate time interval related to the traveling speed of the ACF tape 100.

When the half-cut ACF tape 100 reaches the compression parts 161 and 162, the head part 161 descends to press the ACF tape 100 for a predetermined time and then rise. In this pressing process, the ACF adhered to the ACF tape 100 is separated and attached to the IC chip mounting area of the liquid crystal panel.

For example, the liquid crystal panel is conveyed to the subsequent process by the conveying member, and then the liquid crystal panel is conveyed to the stage 170 by the conveying member to repeat the attaching process.

On the other hand, when the attachment process is carried out by replacing the ACF tape of another standard, the operator replaces the new ACF tape in the supply unit, and selects the corresponding mode while rotating the handle 330 provided in the guide 130. In this case, the selected mode can be immediately confirmed through the opening 301 of the guide 130, and according to the selected mode, a new transport path that can correspond to the replaced ACF tape is provided in the guide 130, so that the operator is low in skill. Even if the replacement can be carried out quickly and easily.

In addition, since the width of the transport path provided in the guide 130 is adjusted to an optimal state in consideration of the driving path and the alignment margin of the ACF tape 100, process loss that may occur in the replacement operation is minimized.

As described above, the above embodiments are disclosed for purposes of illustration, and those skilled in the art will appreciate that various modifications, improvements, substitutions, and additions may be made without departing from the spirit of the present invention. Accordingly, the technical scope of the present invention is defined by the appended claims.

In the ACF attachment device according to the present invention as described above, the corresponding mode is selected while turning the handle provided in the guide during the ACF tape replacement operation. At this time, the selected mode can be directly checked through the opening of the guide, and according to the selected mode, a new transport path is provided inside the guide to cope with the replaced ACF tape. You can proceed. That is, the ACF attachment device according to the present invention has the advantage of simplifying, standardizing and dimensioning the ACF tape replacement work.

Claims (10)

Supply to provide new ACF tape, A crimp to attach the supplied ACF tape A recovery section in which the used ACF tape is wound; A guide for guiding the transfer of the ACF tape between the supply and recovery sections; And a guide adjusting portion for providing a conveying path having a width different according to the size of the ACF tape provided in the guide. The method according to claim 1, The guide adjustment unit, A transport path providing means for providing at least one transport path having a different width; Conveying path selecting means for selecting a specific conveying path among several conveying paths, ACF attachment apparatus comprising a transport path display means for indicating the selected transport path. The method according to claim 2, The transfer path providing means, ACF attachment device, characterized in that to form a conveying path by forming a groove having a different width in each corner of the polygonal structure. The method according to claim 2, The transfer path providing means, ACF attachment apparatus comprising a groove having a different width on each outer surface of the polygonal structure to form a transport path. The method according to claim 2, The transport path selecting means, An ACF attachment device comprising a dial of a circular shape. The method according to claim 2, The transport path selecting means, An ACF attachment device comprising a switch in the shape of a bar. The method according to claim 2, The conveying path display means, ACF attachment device, characterized in that the configuration of a color marking the size of the transport path selectable on the front portion or a separate rotating plate of the polygonal structure. The method according to claim 2, The guide adjustment unit, ACF attachment device further comprises a housing for receiving the conveying path providing means, the conveying path selecting means, the conveying path display means The method according to claim 8, The housing, ACF attachment apparatus further comprises an opening for displaying the conveying path formed by opening a predetermined area. The method according to claim 8, The housing, ACF attachment apparatus, characterized in that the specification of the transport path selectable in the predetermined area is displayed by the color marking method.

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