KR20040072994A - Method for eliminating liquid crystal and device for eliminating liquid crystal - Google Patents

Abstract

PURPOSE: A method for removing liquid crystal and an apparatus for removing liquid crystal are provided to remove liquid crystal stuck around a liquid crystal injection port without directly contacting with a liquid crystal panel. CONSTITUTION: An apparatus(106) for removing liquid crystal is formed of an air supply container(104), an injection device for jetting air toward a liquid crystal injection port(108), and a jet orifice(103) jetting air toward the liquid crystal injection port. A liquid crystal panel(101) is arranged, making the liquid crystal injection port of the liquid crystal panel facing upward. Liquid crystal(102) stuck around the liquid crystal injection port of the liquid crystal panel is removed by an injection pressure of air.

Description

Liquid crystal removal method and liquid crystal removal device {METHOD FOR ELIMINATING LIQUID CRYSTAL AND DEVICE FOR ELIMINATING LIQUID CRYSTAL}

The present invention relates to a liquid crystal removal method and a liquid crystal removal device, and more particularly, to a liquid crystal removal method and a liquid crystal removal device for improving work efficiency.

The liquid crystal panel is filled with a lower substrate in which hundreds of thousands of switching devices are formed in a matrix form, an upper substrate positioned at a predetermined distance from the lower substrate, and filled between the lower substrate and the upper substrate. It consists of the liquid crystal which is made.

In order to configure the lower substrate and the upper substrate as described above as a single device, a liquid crystal panel, a process of applying a seal (hereinafter, "glue") material, a process of arranging spacers, and two substrates above and below It is common to go through the assembly process of bonding, the process of injecting the liquid crystal, the sealing process of the liquid crystal inlet.

In this case, the coating with the adhesive is a process for bonding the upper substrate and the lower substrate to prevent leakage of the liquid crystal to the outside in a liquid crystal injection process in the future, such as epoxy around the edge of the lower substrate. Or the method of printing resin hardened | cured by an ultraviolet-ray by a predetermined method is used.

At this time, the adhesive is printed except for the injection hole of the liquid crystal for the process of injecting the liquid crystal later.

Next, the process of arranging the spacers is a process necessary to uniformly maintain the gap between the upper substrate and the lower substrate combined by the adhesive, and a plastic ball or silica sphere having a constant diameter is formed on the front surface of the lower substrate. This is done in a manner that is evenly distributed.

Next, a process of bonding the lower substrate and the upper substrate, the adhesive is printed on the periphery of the substrate through the process as described above.

At this time, the adhesive is cured by applying a predetermined pressure and heat or ultraviolet rays.

Next, the liquid crystal is injected into the liquid crystal inlet, which is the part without the adhesive, of the liquid crystal panel to which the upper substrate and the lower substrate are bonded.

Next, a process of encapsulating the liquid crystal inlet of the liquid crystal panel in which the liquid crystal is injected is performed.

At this time, the periphery of the injection hole of the liquid crystal panel filled with the liquid crystal is buried with unnecessary liquid crystal.

Therefore, in order to seal the liquid crystal inlet of the liquid crystal panel, a process of removing the liquid crystal buried around the liquid crystal inlet is necessary.

Accordingly, a first object of the present invention is to provide a method for removing liquid crystals wetted around the liquid crystal inlet without directly contacting the liquid crystal panel.

In addition, a second object of the present invention is to provide a liquid crystal removing apparatus for performing the liquid crystal removing method.

1 is a cross-sectional view of a liquid crystal removing method according to an embodiment of the present invention.

2A to 2B are cross-sectional views showing a liquid crystal removing method according to the present invention.

3 is a cross-sectional view of a liquid crystal removing apparatus according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

101: liquid crystal panel 102: liquid crystal

103: air nozzle 105: air

106: liquid crystal removing device 108: liquid crystal inlet

Liquid crystal removal method for realizing the above object of the present invention comprises the steps of arranging the liquid crystal panel facing the liquid crystal inlet of the liquid crystal panel injected liquid crystal; And removing the liquid crystal around the liquid crystal inlet of the liquid crystal panel using the injection pressure of air.

Liquid crystal removal device for realizing the above object of the present invention is an air supply container; An injection device for injecting the air toward the liquid crystal inlet; It includes an injection port in which the air is injected toward the liquid crystal inlet.

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

1 is a cross-sectional view of a liquid crystal removing method according to an embodiment of the present invention.

As shown in the figure, the liquid crystal panel is erected and fixed with the liquid crystal inlet 13 positioned upward.

Next, by removing the liquid crystal 12 buried in the liquid crystal inlet 13 by passing the roll 15 having a clean cloth wound over the liquid crystal inlet 15 of the liquid crystal panel 10. The way it is.

The key to the purpose of cleaning the liquid crystal is to keep the sealed state securely, to prevent the inflow of external air before encapsulation, and to be careful not to be contaminated.

However, in such a contact removal method, the roll 15 directly in contact with the liquid crystal inlet may be contaminated around the liquid crystal inlet. In addition, since the liquid crystal removal roll is a consumer goods, the price of the liquid crystal display device increases in economical terms.

Therefore, in consideration of this partial problem, a non-contact liquid crystal removal method can be considered.

2A to 2B are cross-sectional views showing a liquid crystal removing method according to the present invention.

First, referring to FIG. 2A, the liquid crystal panel 101 is fixed upright so that the liquid crystal injection hole 108 faces upward.

Next, the liquid crystal removal device 106 in which air is injected by the operated air injection port 103 is moved to position the liquid crystal injection port periphery 108.

At this time, since the injection amount of air required to completely remove the liquid crystal wetted around the liquid crystal injection hole 108 is preferably 4 kg, the air adjustable range of the liquid crystal removal device 106 is 3 kg to 4 kg.

In addition, since the distance between the liquid crystal removing device 106 and the liquid crystal injection hole 108 is also an important factor in removing the liquid crystal 102 that is wet around the liquid crystal injection hole 108, the liquid crystal removing device 106 and the liquid crystal injection hole are considered. It is appropriate to adjust the distance B2 between 108 to 5 to 150 mm.

Therefore, the distance adjusting range between the liquid crystal removing device and the liquid crystal inlet is set to 0 mm to 200 mm.

Referring to FIG. 2B, the air 105 injected into the air injection hole 103 is injected toward a portion where the unnecessary liquid crystal 102 is around the liquid crystal injection hole.

Another important factor to completely remove the liquid crystal buried around the liquid crystal injection hole 106 is the angle (B1) between the direction in which air is injected and the cross section cut along the liquid crystal injection hole 108, since it is effective to be 0 to 60 degrees. The angle adjustable range is 0 degrees to 90 degrees.

In addition, the time that the air is injected is effective to last 5 to 120 seconds.

It uses the injection pressure of air and can remove the liquid crystal without contacting the liquid crystal. Therefore, the area around the liquid crystal inlet is not contaminated and no absorbent is required to absorb the liquid crystal. Therefore, it is effective in terms of efficiency and economical efficiency.

3 is a cross-sectional view of the liquid crystal removing device according to the present invention.

Referring to FIG. 3, the liquid crystal removing apparatus according to the present invention is a device which blows the liquid crystal around the liquid crystal injection hole 108, located near the liquid crystal injection hole 108, and includes an air supply container 104 and an injection hole 103. .

The amount C of air injected by the liquid crystal removal device 106 is 4 kg for efficient liquid crystal removal.

In addition, it is effective that the distance B2 between the liquid crystal removal device 106 and the liquid crystal injection hole 108 is also 5 to 150 mm.

In addition, it is effective that the angle B1 between the direction in which the air is injected and the cross section cut along the liquid crystal inlet 108 is 0 to 60 degrees, and the time for injecting air is effective to be 5 to 120 seconds.

According to the liquid crystal removing method and the liquid crystal removing apparatus described above, by using the partial pressure of air to remove the liquid crystal buried around the liquid crystal inlet, it is possible to improve economic efficiency and improve work efficiency.

Although described with reference to the embodiments above, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

Claims (6)

Arranging the liquid crystal panel to face the liquid crystal inlet of the liquid crystal panel injected with liquid crystal; And Removing liquid crystals around the liquid crystal inlet of the liquid crystal panel using the injection pressure of the air. The liquid crystal removal method according to claim 1, wherein the air injection amount is 4 kg. The liquid crystal removal method according to claim 2, wherein an angle formed by a direction in which the air is injected and a cross section cut along the liquid crystal inlet is 0 ° to 60 °. 4. The liquid crystal removal method according to claim 3, wherein the distance between the air injection point and the liquid crystal inlet is 5 mm to 150 mm. The liquid crystal removal method according to claim 4, wherein the air is sprayed for 5 seconds to 120 seconds. Air supply vessel; An injection device for injecting the air toward the liquid crystal inlet; And And a liquid crystal injection device for removing liquid crystal buried in the periphery of the liquid crystal injection hole of the liquid crystal panel including an injection hole in which the air is injected toward the liquid crystal injection hole.