JPH077293A - Apparatus and method for releasing separate tape for anisotropically conductive tape - Google Patents

Abstract

PURPOSE:To provide means for automatically releasing a separate tape adhered to an anisotropically conductive tape before leads of electronic components are bonded to the conductive tape adhered to a display panel. CONSTITUTION:The method for releasing a separate tape for an anisotropically conductive tape comprises the steps of disposing an adhesive tape 17 fed from a supply reel 12 above a separate tape 4 on the conductive tape 3 adhered to a display panel 1, pressing it to the tape 4 by a presser 20 to adhere the tape 4 to a lower surface of the tape 17, then raising the presser 20 to partly release the tape 4 from the tape 3, and then forcibly releasing the tape 4 from the tape 3 by advancing a moving element 47 along the downside of the tape 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for peeling a separate tape on an anisotropic conductive tape attached to an electrode of a display panel in order to attach a lead of an electronic component which is a driver to the display panel. The present invention relates to a peeling device and a peeling method for a separate tape for anisotropic conductive tape.

[0002]

2. Description of the Related Art A display panel such as a liquid crystal panel, which is often used for a display of electronic equipment, is manufactured by bonding leads of an electronic component, which is a driver, on electrodes formed along side edges of the display panel. .

A method of using an anisotropic conductive tape is known as a method of bonding the leads of an electronic component to the electrodes of a display panel. This method comprises a step of attaching an anisotropic conductive tape on the electrodes of the display panel, a step of peeling the separate tape attached on the anisotropic conductive tape from the anisotropic conductive tape, and a separate tape. The process consists of bonding the leads of the electronic component onto the anisotropic conductive tape that has been stripped and exposed. The anisotropic conductive tape is wound around a reel, and therefore the separate tape prevents the anisotropic conductive tapes from sticking to each other during winding. It must be stripped before it can be bonded to.

A method of bonding an electronic component to a display panel using an anisotropic conductive tape is a method which has been proposed in recent years, and therefore, the technique, particularly the above-mentioned steps are automatically performed. The technology has not yet been fully established, and therefore, the above-mentioned steps are currently performed exclusively by workers.

[0005]

However, the manual work of the operator does not increase the work efficiency, and therefore automation of the above-mentioned steps has been strongly desired.

Therefore, according to the present invention, prior to bonding the leads of electronic parts to the anisotropic conductive tape adhered to the display panel, the separate tape adhered to the anisotropic conductive tape is automatically prepared. An object of the present invention is to provide a peeling device and a peeling method for a separate tape for anisotropic conductive tape that can be peeled off.

[0007]

To this end, according to the present invention, the pressure-sensitive adhesive tape fed from the supply means is positioned above the separate tape on the anisotropic conductive tape attached to the display panel, and the pressure tape is used. Press on the separate tape to attach the separate tape to the lower surface of the adhesive tape. Then, the pusher is lifted to partially separate the separate tape from the anisotropic conductive tape, and the mover is advanced below the adhesive tape to force the separate tape from the anisotropic conductive tape. I try to peel it off.

[0008]

According to the above construction, the separate tape attached on the anisotropic conductive tape can be automatically peeled off with good workability.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is an overall perspective view of a separating tape separating device for anisotropic conductive tape according to an embodiment of the present invention,
FIG. 2 is a sectional view of the same. Reference numeral 1 denotes a display panel, on which an anisotropic conductive tape 3 is attached in a previous step on an electrode 2 formed on a side edge portion thereof. Reference numeral 4 is a separate tape attached on the anisotropic conductive tape 3.

Reference numeral 11 denotes a plate-shaped main body, a supply reel 12 is rotatably supported on the right side of the front surface, and a take-up reel 13 is rotatably supported on the left side of the front surface. . Further, a total of four guide pins 14a, 14b, 14c, 14d are provided at the center of the main body 11. The upper guide pins 14a and 14d are provided on the front surface of the main body 11 while the lower guide pins 14b and 14c are provided.
Are held in block 34 (discussed below). Also the main body 1
A motor 15 for rotating the supply reel 12 is provided on the back surface of 1.
A motor 16 for rotating the take-up reel 13 is provided.

An adhesive tape 17 is wound around the take-up reel 12. The adhesive tape 17 fed out from the take-up reel 12 has guide pins 14a to 14 as guide means.
It runs along d and is wound up by the take-up reel 13. Here, between the guide pin 14b and the guide pin 14c,
The adhesive tape 17 is the separate tape 4 on the display panel 1.
Drive above and parallel to this.

Next, the adhesive tape 17 is attached to the separate tape 4
The pressing mechanism that presses against will be described. Guide pins 14a, 1
A box-shaped presser 20 is provided between the guide pin 4c and the guide pins 14c and 14d. The presser 20 has a built-in heater and is heated to about 80 ° C to 120 ° C.
A protrusion 29 is provided on the upper surface of the pressing member 20, and a rod 21 is provided upright on the protrusion 29. A coil spring 22 is attached to the rod 21. Rod 21
The upper end of is connected to the tip of the horizontal bar 23,
The bar 23 penetrates the opening 18 formed at the center of the main body 11.

As shown in FIG. 2, a nut 24 is attached to the rear end of the bar 23. The nut 24 is screwed onto a vertical ball screw 25 provided upright between support plates 26 and 27 projecting from the back surface of the main body 11. Support plate 26
A motor 28 for rotating the ball screw 25 is installed above. Therefore, when the motor 28 is driven to rotate the ball screw 25 in the forward or reverse direction, the nut 24 moves up and down along the ball screw 25, and the pusher 20 connected to the nut 24 via the bar 23 and the rod 21 moves up and down. To work. That is, the nut 24, the ball screw 25, the motor 2
Reference numeral 8 and the like serve as vertical movement means for causing the pusher 20 to perform vertical movement.

In FIGS. 1 and 2, a horizontal arm 31 is arranged between the protrusion 29 and the coil spring 22. Vertical rods 32 are coupled to both ends of the arm 31, and the rods 32 are vertically movably inserted into a guide ring 33 fixed to the front surface of the main body 11. The coil spring 22 presses the arm 31 against the upper surface of the protrusion 29. The rod 32 penetrates the guide ring 33, and a block 34 is coupled to the lower end of the guide ring 33. The guide pins 14b and 14c are held by the block 34, and therefore the motor 28 drives the pusher 20.
When the arm 31 moves up and down, the guide pin 14
b and 14c also perform the same stroke up and down movement together with the pusher 20.

Next, the peeling mechanism of the separate tape 4 will be described. In FIGS. 1 and 2, timing pulleys 41 and 42 are arranged on the back surface of the main body 11, and a timing belt 43 is attached to the timing pulleys 41 and 42. A support plate 44 is provided above one of the timing pulleys 41, and a motor 45 that rotates the timing pulley 41 is installed on the support plate 44.

A block 46 is fixed to the timing belt 43, and a pin-shaped moving element 47 is attached to the block 46.
Is held. The mover 47 extends horizontally below the main body 11 and above the side edge of the display panel 1. As shown in FIG. 2, a slider 48 is mounted on the front surface of the block 46. The slider 48 is slidably fitted in a guide rail 49 horizontally provided on the back surface of the main body 11 in the longitudinal direction of the adhesive tape 17.

Therefore, when the timing pulley 41 is rotated by driving the motor 45 in the forward or reverse direction, the timing belt 43 is rotated along the timing pulley 41 and the timing pulley 42. The adhesive tape 17 horizontally stretched between the guide pins 14b and 14c is moved forward and backward along the lower side thereof. That is, the timing pulleys 41, 4
2, the timing belt 43, the motor 45, etc. are moving means for moving the mover 47 forward and backward in the horizontal direction.

In FIG. 1, 50 is a sensor section,
It is provided outside between the gun pin 14c and the guide pin 14d. The sensor unit 50 detects whether or not the separate tape 4 is attached to the adhesive tape 17, and, for example, a reflection type optical sensor or the like is used.

The separating device for the separate tape 4 is constructed as described above, and the overall operation will be described below with reference to FIGS. 3 and 4.

3 (a) (b) (c) and FIG. 4 (a)
(B) shows a series of steps. First, as shown in FIG. 3A, the anisotropic conductive tape 3 is attached to the display panel 1 in the previous step. A separate tape 4 is attached to the upper surface of the anisotropic conductive tape 3. As shown in the figure, initially, the pusher 20 retreats upward, and the mover 47 retreats to the side of the guide pin 14b.

When the motor 28 rotates forward, the pusher 2
0 descends and presses the adhesive tape 17 against the separate tape 4 (see FIG. 3B). At this time, the guide pin 14
b and 14c also move down integrally with the pusher 20.

Next, as shown in FIG.
By rotating in reverse, the pusher 20 is raised and the pressed state is released. At this time, the guide pins 14b and 14c
Also rises integrally with the pusher 20. At this time, since the adhesive tape 17 tries to rise together with the guide pins 14b and 14c due to its elasticity and tension, both ends of the separate tape 4 attached to the adhesive tape 17 are anisotropic as shown in the figure. It is partially peeled from the conductive tape 3.

Next, when the motor 45 rotates forward,
As shown in FIG. 4A, the mover 47 moves to the left and slides against the lower surface of the separate tape 4 attached to the lower surface of the adhesive tape 17, thereby forcing the separate tape 4 from the anisotropic conductive tape 3. Peel off.

When the mover 47 is further advanced to the left and the separate tape 4 is completely peeled off from the anisotropic conductive tape 3 by the mover 47, the mover 47 is retracted to the right to the original position. And the motors 15 and 16 are driven to feed the adhesive tape 17 by one pitch of the separate tape 4 (see FIG. 4B). At this time, the sensor unit 50 detects whether the separate tape 4 is attached to the adhesive tape 17, that is, whether the separation of the separate tape 4 has been performed.

In this way, immediately after the peeling work, that is, before the next peeling work of the separate tape 4 is executed, whether or not the separate tape 4 is peeled off is immediately detected by the sensor unit 50. Then, the above operation can be repeated again to perform the peeling operation of the separate tape 4 that has failed to peel.

[0027]

As described above, according to the apparatus and method for separating a separate tape for anisotropic conductive tape of the present invention, the separate tape on the anisotropic conductive tape attached to the display panel is operated. Since it can be peeled off automatically with good performance, and the lead of the electronic component can be bonded to the anisotropic conductive tape subsequently, it is very advantageous for labor saving of the assembly work of the display panel.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a separating tape peeling device for anisotropic conductive tape according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a separating tape peeling device for anisotropic conductive tape according to an embodiment of the present invention.

FIG. 3 (a) is a partial front view of the separating device for an anisotropic conductive tape for an anisotropic conductive tape according to an embodiment of the present invention during peeling. (B) A separate tape for anisotropic conductive tape according to an embodiment of the present invention (C) Partial front view of the peeling device during peeling (c) Partial front view of the peeling device of the separate tape for anisotropic conductive tape according to one embodiment of the present invention during peeling

FIG. 4A is a partial front view of the separating device for an anisotropic conductive tape for an anisotropic conductive tape according to an embodiment of the present invention during peeling. FIG. 4B is a separate tape for an anisotropic conductive tape according to an embodiment of the present invention. Front view of the peeling device during peeling

[Explanation of symbols]

1 Display panel 3 Anisotropic conductive tape 4 Separate tape 12 Supply reel 13 Take-up reel 14a, 14b, 14c, 14d Guide pin (guide means) 17 Adhesive tape 20 Presser 24 Nut (vertical movement means) 25 Ball screw (up and down) Moving means) 28 Motors (vertical moving means) 41, 42 Timing pulleys (moving means) 43 Timing belts (moving means) 45 Motors (moving means)

Claims (2)

[Claims] 1. A supply means for supplying an adhesive tape, a winding means for winding the adhesive tape, a motor for rotating the winding means, and an adhesive tape fed from the supplying means to a display panel. Guide means for locating above the separate tape on the anisotropic conductive tape, a pressing element for pressing the adhesive tape against the separate tape by pressing the adhesive tape from above, and a vertical direction for causing this pressing element to perform vertical movement. An apparatus for peeling a separate tape for anisotropic conductive tape, comprising: moving means, a moving element that moves forward and backward below an adhesive tape, and moving means that causes the moving element to perform forward and backward movements. 2. A step of positioning an adhesive tape above a separate tape on an anisotropic conductive tape adhered to a display panel, and driving an up-and-down means to lower a presser to press the adhesive tape. A step of pressing the separate tape with a child; a step of driving the up-and-down means to raise the presser to release the pressed state of the separate tape; and a moving means to move the mover below the adhesive tape. And a step of forcibly peeling the separate tape from the anisotropic conductive tape by means of the mover, the peeling method of the separate tape for anisotropic conductive tape.