ACF attachment device and display device manufacturing method

Abstract

Disclosed is an ACF attachment device capable of solving the problem occurring when a clamping chuck moves with an unnecessary ACF region adhering thereto; further disclosed is a display device manufacturing method. This ACF attachment device comprises: an ACF tape comprised of an ACF attached to a separator; a mechanism which moves the ACF tape; an alignment mechanism which controls the movement position of the ACF tape; a mechanism which cuts a portion of the ACF tape; a clamping chuck mechanism which clamps the ACF tape; a panel pedestal on which a display panel can be placed; and a heating / pressing head which is capable of making contact with the separator of the ACF tape; and heats the ACF tape being clamped by the heating / pressing head and the display panel placed on the panel pedestal to transfer the ACF to the display panel. In addition, this ACF attachment device is provided with a means which changes the adhesive property of a portion of the ACF before the ACF tape is clamped by the clamping mechanism.

Description

technical field [0001] The present invention relates to a device for pasting an anisotropic conductive film tape (hereinafter referred to as ACF (Anisotropic Conductive Film) tape) on a display panel and a method for manufacturing a display device using the same. Background technique [0002] like Figure 9 As shown, the existing ACF pasting device includes: ACF supply reel 101, spacer recovery reel 104, half-cut mechanism 105, peeling roller 107, clamping and clamping member 109, liquid crystal panel receiving platform 113, heating / pressurizing head 114 . [0003] refer to Figure 9 The pasting operation using such a conventional ACF pasting device will be described. [0004] First, in "Operation 1", the boundary between the unnecessary ACF part 197 that is not pasted on the liquid crystal panel by the cutter 106 of the half-cutting mechanism 105 and the panel pasting ACF part 198 that is pasted on the liquid crystal panel forms two parts. incision. [0005] In "Operatio...

AI Technical Summary

Problems solved by technology

[0013] and, if Figure 9 As shown in the "unqualified situation" of , when a part of the unnecessary ACF part 197 is attached to the lower clamping part 111, and the clamping clamping part 109 is opened, the ACF belt 199 is stretched and clamped The drive shaft of the clamping member 109 is overloaded, and the drive shaft overload abnormality causes the device to stop abnormally. As a result, the operation rate of the equipment is reduced.

[0014] 2) The second shortcoming of the existing ACF pasting device is that in the action of 1), the unnecessary ACF portion 197 remaining on the ACF tape 199 is attached to the lower clamping member 111, and the lower clamping member 111 and the unnecessary In the state where a part of the ACF portion 197 is attached, the clip 109 is clamped and opened, and the ACF tape 199 is stretched, and the panel-attached ACF portion 198 that should have remained on the spacer 103 is also clamped by the clip. 109 was stretched and peeled off, and it was not attached to the correct position of the liquid crystal panel 112. As a result, the product with poor ACF adhesion was rejected

In addition, when the peeled panel ACF portion 198 is pasted on the clamping member 109 and its peripheral equipment, problems as described in 1) will occur.

[0015] 3) The third shortcoming of the existing ACF sticking device is that in the action of 1), the unnecessary ACF portion 197 remaining on the ACF tape 199 is attached to the lower clamping member 111, and the unnecessary ACF portion 197 remaining on the ACF tape 199 is attached to the lower clamping member 111. In the state where a part of the ACF portion 197 is attached, the clamping and clamping member 109 is opened, and the ACF tape 199 is stretched, and the panel-attached ACF portion 198 that should have remained on the spacer 103 is also clamped and clamped. Piece 109 is stretched under tension while peeling

[0016] When the ACF scraps of the peeled-off panel pasting ACF portion 198 are pasted on the equipment of the device, the problem described in 2) above will occur, but when pasted on the display area of ​​the liquid crystal panel 112, it will become When the liquid crystal display device is turned on and displayed, the part where ACF chips are attached cannot be displayed normally, and it becomes a product failure (display failure)

The unqualified liquid crystal display device can be made into a qualified part by disassembling and removing the repair work of ACF chips attached to the liquid crystal panel, but the repair work has the problems of consuming man-hours and affecting the yield rate.

[0017] 4) Disadvantage of Patent Document 2 (Japanese Patent Laid-Open No. 9-6251). In the case where the ACF tape is drawn out by using a clip, sufficient biting is required in order to pull out the ACF tape without slipping.

In the state where the ACF tape is fully bitten by the clip, it may not be easy to separate due to the adhesive force of the ACF part, and the problem that the ACF part is difficult to peel off from the clip by blowing air alone cannot be avoided.

In addition, when adjusting by reducing the biting amount of the clip to such an extent that the ACF portion can be peeled off from the clip by blowing air, the ACF band may be easily slipped, and it is necessary to determine the optimal biting amount each time. , there is no way to avoid the need for error adjustment for each ACF band

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