JPH1049079A - Method for storing liquid crystal panel and transfer jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the method for storing a liquid crystal panel without damaging a signal input terminal part even by failure arising due to static electricity and mishandling. SOLUTION: When a liquid crystal panel is stored while being placed on a storage rack 3 for a transfer jig, it is placed so that a signal input terminal part 4 formed therein faces downward and a cushioning material 5 having conductivity and also repulsivity in a cured state is interposed between the panel and the storage rack 3, and the cushioning material 5 is connected to a grounding line. The signal input terminal part 4 of the liquid crystal panel is made in close contact with the cushioning material 5 by a self weight of the liquid crystal panel, and the signal input terminal 4 is always put in an electrically uniform state to infiltration of static electricity and electric discharge, and further, the damage of the signal input terminal part 4 is protected by the elasticity of the cushioning material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for storing a liquid crystal panel and a jig for use in manufacturing a liquid crystal panel.

[0002]

2. Description of the Related Art In recent years, liquid crystal display devices have rapidly penetrated the market, and their use has been expanding to OA, consumer, and industrial applications. There is a growing demand for improvements, cost reductions, and increased supplies.

[0003] In response to such market demands, while yield improvement is an issue, problems such as defects due to static electricity and yield loss due to scratches on signal input terminals become problems. An electrostatic defect in a liquid crystal panel means that static electricity permeates a small number of lines among a plurality of transparent electrodes formed vertically and horizontally in the upper and lower substrates that form the liquid crystal panel, or a smaller number than inside a charged liquid crystal panel. When only one line is discharged, the electric characteristics of the line change, causing a difference in characteristics between the other lines, and a phenomenon that appears as a defect along the line on the screen display. .

When the signal input terminal of the liquid crystal panel is damaged, the signal input terminal is damaged by an external factor such as an erroneous handling during the operation, so that the wiring of the terminal is broken.
FIG. 3 shows a conventional liquid crystal panel transfer jig.

The liquid crystal panel 1 is transferred and stored on the storage shelf 3 of the transfer jig 2 with the signal input terminal 4 facing upward.

[0006]

However, when an operator touches the liquid crystal panel, a small number of the transparent electrodes formed in the vertical and horizontal directions in the upper and lower substrates forming the liquid crystal panel accidentally occur. When static electricity enters the line or only a small number of lines are discharged from the inside of the charged liquid crystal panel, the electrical characteristics of the line change, and the difference in characteristics between other lines is reduced. This may cause a problem along the line on the screen display.

Further, when the liquid crystal panel 1 is once lifted and pulled out, the signal input terminal portion 1 comes into contact with the upper storage shelf 3,
There is also the problem of being hurt. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of storing a liquid crystal panel and a transfer jig which do not cause damage to a signal input terminal portion even if a defect occurs due to static electricity or an erroneous handling.

[0008]

According to the present invention, there is provided a method of storing a liquid crystal panel, wherein a signal input terminal formed on the liquid crystal panel is on a lower side, and a conductive and hardened material is provided between the liquid crystal panel and the storage shelf. In this state, it is placed via an elastic cushioning material.

According to the present invention, it is possible to provide a method of storing a liquid crystal panel in which a signal input terminal portion is not damaged even if a defect occurs due to static electricity or an erroneous handling.

[0010]

According to a first aspect of the present invention, there is provided a method of storing a liquid crystal panel, wherein when the liquid crystal panel is placed on a storage shelf of a transfer jig and stored, a signal input terminal formed on the liquid crystal panel is lowered. On the other hand, between the storage shelf and the storage shelf is placed via a buffer material having conductivity and elasticity in a cured state, and the buffer material is connected to a ground line. .

According to this structure, the signal input terminal portion of the liquid crystal panel is brought into close contact with the conductive buffer material on the storage shelf by the weight of the liquid crystal panel, and the signal input terminal portion is electrically connected to the ingress and discharge of static electricity. Thus, the electrical characteristics of a specific line can be prevented from changing, and the elasticity of the buffer material can prevent the signal input terminal from being damaged.

According to a second aspect of the present invention, there is provided a liquid crystal panel transfer jig, in which a storage material of the transfer jig on which the liquid crystal panel is mounted is coated with a buffer material having conductivity and elasticity in a cured state. It is characterized by having done.

An embodiment of the present invention will be described below with reference to FIGS. Each storage shelf 3 of the transfer jig 2 shown in FIG.
As shown in FIG. 2B, a buffer material 5 is previously applied and cured on the upper surfaces of a, 3b and 3c. Specifically, the outer peripheral portion 2a of the transfer jig 2 and the storage shelves 3a to 3c are made of a conductive metal, and the buffer material 5 is coated by mixing carbon with silicon resin to impart conductivity. . Reference numeral 6 denotes a ground line connected to the ground line.
Are connected to the ground line 6 via the respective storage shelves and the outer peripheral portion 2a and are grounded.

As shown in FIGS. 2A and 2B, the liquid crystal panel 1 to be stored is placed on the storage shelves 3a to 3c with the signal input terminal portion 4 of the liquid crystal panel 1 on the lower side. Is done. With this configuration, the stored liquid crystal panel 1
Is that the entire surface of the input signal terminal portion 4 of the liquid crystal panel is in good contact with the surface of the conductive buffer material due to the weight of the liquid crystal panel. And the electrical characteristics of a particular line can be prevented from changing.

The input signal terminal portion 4 can be prevented from being damaged by the elasticity of the buffer material 5. Further, even if the liquid crystal panel 1 is once lifted up and pulled out, even if the liquid crystal panel 1 comes into contact with the upper storage shelf, the signal input terminal portion 4 is on the lower surface side and is not damaged.

[0016]

As described above, according to the liquid crystal panel storage method of the present invention, when the liquid crystal panel is placed on the storage shelf of the transfer jig and stored, the signal input terminal formed on the liquid crystal panel is used. Since it is placed on the lower side between the storage shelf and a buffer material having conductivity and elasticity in a hardened state, and the buffer material is connected to a ground line, the liquid crystal panel Due to the weight of the liquid crystal panel, the signal input terminal part is in close contact with the conductive buffer material on the storage shelf, and the signal input terminal part is always placed in an electrically uniform state against the ingress and discharge of static electricity. A change in electrical characteristics of a specific line can be prevented, and a signal input terminal portion can be prevented from being damaged by the elasticity of the buffer material, thereby improving the process yield and reducing the manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a transfer jig used for carrying out a liquid crystal panel storage method of the present invention.

FIG. 2 is a schematic diagram showing a state where a liquid crystal panel is placed on a storage shelf of the embodiment, and a cross-sectional view of the storage shelf at this time.

FIG. 3 is a perspective view of a conventional transfer jig.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal panel 2 Transfer jig 3a, 3b, 3c Storage shelf 4 Signal input terminal part 5 Buffer material 6 Ground wire

Claims (2)

[Claims] When a liquid crystal panel is placed and stored on a storage shelf of a transfer jig, a signal input terminal portion formed on the liquid crystal panel is placed on a lower side, and a conductive material is provided between the storage shelf and the liquid crystal panel. A method for storing a liquid crystal panel, wherein the liquid crystal panel is placed via a buffer material having elasticity in a cured state, and the buffer material is connected to a ground line. 2. A liquid crystal panel transfer jig coated with a buffer material having conductivity and elasticity in a cured state on a storage shelf of the transfer jig on which the liquid crystal panel is mounted.