KR19990023597U - Anisotropic conductive film removal device of liquid crystal panel - Google Patents

Abstract

The present invention discloses an anisotropic conductive film removing device of a liquid crystal panel. In the disclosed invention, the guide rail 2 is provided on the side of the table 1 on which the liquid crystal panel P is placed, and the slider 3 is installed to be movable on the guide rail 2. A blade 4 for removing the ACF (F) of the liquid crystal panel P by frictional contact is installed on the slider 3 so as to be movable up, down, left and right, and the blade 4 has a vertical type installed on the slider 3 and Fine adjustment is made to the removal position by the horizontal micrometers 5 and 6.

Description

Anisotropic conductive film removal device of liquid crystal panel

The present invention relates to an anisotropic conductive film removing device of a liquid crystal panel, and more particularly, to repair an anisotropic conductive film electrically connecting a pad of a liquid crystal panel and a tape carrier package which is a signal carrier for repairing a liquid crystal panel determined as defective. A device for removing.

In general, an integrated circuit (IC) is packaged to apply an image signal to a liquid crystal panel when a module of the liquid crystal panel is manufactured, and a tape carrier package (hereinafter, abbreviated as TCP) having leads on both sides is prepared. do.

TCP electrically connects a printed circuit board and a liquid crystal panel. One side of the TCP leads are electrically bonded to an aluminum pad of a liquid crystal panel arranged in a matrix by an anisotropic conductive film (hereinafter abbreviated as ACF). The leads on the other side of the TCP are soldered for electrical connection with the printed circuit board.

As such, the liquid crystal panel electrically connected to the printed circuit board is normally operated, that is, the signal transmission is normally performed by TCP. If the test result is determined to be abnormal, TCP should be disassembled from the liquid crystal panel and replaced with a new one or repaired.

Therefore, in order to replace the TCP, it is necessary to first remove the ACF on the aluminum pad, conventionally used a chemical such as acetone or toluene. That is, the whole liquid crystal panel was immersed in the chemical | medical agent, and ACF was removed.

However, the conventional method of removing the ACF by immersing the entire liquid crystal panel in a chemical as described above has many risk factors due to the handling of the chemical, and in particular, the new chemical penetrates into the normal TCP and damages the TCP. Caused.

The present invention was devised to solve the problems of the conventional ACF removal method, by removing the ACF by using a mechanical friction force rather than a chemical reaction, it can fundamentally eliminate the risk factors associated with the use of chemicals, It is also an object of the present invention to provide an anisotropic conductive film removing device for a liquid crystal panel which can prevent the normal TCP from being damaged.

1 is a perspective view showing an anisotropic conductive film removing device according to Example 1 of the present invention

2 is an operation explanatory diagram of the first embodiment;

3 is an operation explanatory view showing a state in which a rubber roller is applied as a friction member according to Embodiment 2 of the present invention;

-Explanation of symbols for the main parts of the drawing-

A-Aluminum Pad F-ACF

P-Liquid Crystal Panel 1-Table

2-guide rail 3-slider

4-Blade 5-Vertical Microphone Meter

6-horizontal micrometer 11,12-alignment member

41-rubber roller

In order to achieve the above object, the present invention has the following configuration.

The liquid crystal panel is placed on the table. On two adjacent edges of the table, alignment members are provided to align the position of the liquid crystal panel. Guide rails are provided on the side of the table opposite the alignment member. The slider is reciprocally provided on the guide rail, and the friction member which is removed by frictional contact with the anisotropic conductive film of the liquid crystal panel is installed on the slider so as to be movable up, down, left and right. The friction member is finely adjusted to be moved to the anisotropic conductive film removal position by vertical and horizontal micrometers provided in the slider. On the other hand, the friction member is preferably a blade or a roller of rubber material.

According to the configuration of the present invention described above, by frictional contact with the anisotropic conductive film while the friction member moves along the guide rail, the anisotropic conductive film is removed, thereby eliminating the risk factors associated with the use of chemicals.

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

<Example 1>

1 is a perspective view showing an ACF removal device according to a first embodiment of the present invention, Figure 2 is an operation explanatory diagram.

As shown in FIG. 1, the liquid crystal panel P is placed on the rectangular table 1. Two pairs of alignment members 11 and 12, which are arranged in pairs for aligning the position of the liquid crystal panel P, are provided at two adjacent edges of the table 1. That is, each of the alignment members 11 and 12 is disposed to be orthogonal, so that two side surfaces of the liquid crystal panel P are supported by the alignment members 11 and 12.

The guide rail 2 is arranged on the side of the table 1 opposite to the alignment member 11. The slider 3 is movably mounted to the guide rail 2, and a friction member for removing the ACF, and in the first embodiment, the blade 4 is movably mounted up, down, left and right on the slider 3. The blade 4 is connected to the longitudinal and lateral micrometers 5 and 6 installed on the slider 3 and finely adjusted to be moved to the ACF removal position by each micrometer 5 and 6.

On the other hand, in the first embodiment, the slider 3 is manually moved along the guide rail 2, but it is also preferable that the slider 3 is configured to be automatically driven so as to make the removal work more efficient. For example, a motor (not shown) is mounted on one side of the guide rail 2, and a ball screw (not shown) supported rotatably on the guide rail 2 is connected to the motor shaft, and the slider is connected to the ball screw. When the screw 3 is screwed in, the slider 3 can be automatically moved along the guide rail 2 by the driving of the motor.

Hereinafter, the operation of the first embodiment configured as described above will be described in detail with reference to FIG. 2.

First, after removing the TCP determined as defective and placing the liquid crystal panel P on the table 1, two adjacent side surfaces of the liquid crystal panel P are aligned by being in close contact with the respective alignment members 11 and 12. . The ACF to be removed is located on the side opposite to one side of the liquid crystal panel P in close contact with the alignment member 11.

Then, as shown in FIG. 2, each micrometer 5, 6 is adjusted so that the blade 4 is positioned above the ACF F while the aluminum pad A of the liquid crystal panel P is also removed. Place it at a height that will not wear out.

In this state, when the slider 3 is moved along the guide rail 2, the blade 4 does not come into contact with the aluminum pad A but frictionally contacts only the ACF (F), thereby removing the ACF (F). Done.

<Example 2>

3 is a cross-sectional view showing a state in which a rubber roller is applied as a friction member according to the second embodiment.

As shown, in the second embodiment, the friction member is applied to the roller 41 of rubber material instead of the blade. In other words, the rubber roller 41 is rotatably connected to the slider by the shaft, thereby causing friction contact with the ACF (F) while rotating as the slider moves along the guide rail, thereby removing the ACF (F).

According to the present invention as described above, by removing the ACF (F) by the mechanical friction action by the friction member, there is no risk of using the conventional chemical, in particular, adjacent to the ACF (F) It is also fundamentally prevented that normal TCP is damaged by chemicals.

On the other hand, the present invention is not limited to the above-described specific preferred embodiment, any person having ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims can be variously modified. will be.

Claims (4)

A table on which a liquid crystal panel is placed; An alignment member disposed on two adjacent edges of the table, the alignment member in contact with and aligned with two sides of the liquid crystal panel; A guide rail disposed on a side of the table opposite the alignment member; A slider movably installed on the guide rail; A friction member installed on the slider so as to be movable up, down, left and right, and in frictional contact with the anisotropic conductive film applied on the aluminum pad on the liquid crystal panel to wear out and remove the anisotropic conductive film; And longitudinal and lateral micrometers mounted on the slider to position the friction member on the anisotropic conductive film and to be at a height not to be in contact with the aluminum pad. Removal device. The device of claim 1, wherein the friction member is a blade. 2. The apparatus of claim 1, wherein the friction member is a rubber roller rotatably connected to a slider. According to any one of claims 1 to 3, wherein a motor is mounted on one side of the guide rail, a ball screw connected to the shaft of the motor is rotatably supported on the guide rail, the slider is attached to the ball screw Anisotropic conductive film removing device of the liquid crystal panel characterized in that the screwed.