JP2000147525A - Device and method for sealing liquid crystal display cell - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain liquid crystal display(LCD) cell sealing device and method capable of remarkably improving the efficiency of manufacture without generating the reduction of yield due to the damage of the cell, the dispersion of a sealed state, etc., by optimizing pressure to be applied to the LCD cell. SOLUTION: The method is constituted of a sealing process consisting of a carrying unit 5 having a pressurizing mechanism for taking in a pressurizing jig 2, pressurizing an LCD cell 1 in a laminating direction to uniform a gap and depressurizing the cell 1 to control the entered quantity of a sealing agent, an extraction unit 10 for removing excess liquid crystal(LC) exuded by pressurization, an application unit for applying the sealing agent to an injection port of the cell 1, and an ultraviolet ray irradiation unit 17 for curing the applied sealing agent and a shifting process consisting of the jig 2 for laminating the cell 1 while positioning it and holding the cell 1 in an initial pres-surized state by a spring, a loading unit 3 for setting up the jig 2 to the sealing process and an unloading unit 20 for releasing the set state of the jig 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for sealing a liquid crystal display cell. The present invention relates to a liquid crystal display cell sealing device and a sealing method for sealing the injection port.

[0002]

2. Description of the Related Art When a liquid crystal injection port in a liquid crystal display cell is sealed, the pressure applied to the liquid crystal display cell is set to an optimum state so that the yield does not decrease due to cell damage or variations in the sealing state. It is desirable to do. For this,
The "liquid crystal panel assembling apparatus" disclosed in Japanese Patent Application Laid-Open No. H5-265013 is configured as shown in a front view shown in FIG. 11 and a side view shown in FIG.

That is, a rotating mechanism 52 is fixed on a rigidly formed base 51, and a rotating drive source 53 such as a pneumatic rotary actuator is connected to the rotating mechanism 52, and an output shaft 54 of the rotating mechanism 52 is provided. , A longitudinal support 55 is fixed. A base portion 55a is provided at a lower portion of the support 55.
Are formed so as to extend, and a support portion 55b is formed so as to extend at the upper portion. A slider 56 slidable in the longitudinal direction is provided at an intermediate portion of the column 55.

A cassette 60 is fitted on the upper surface of the base portion 55a via a slide mechanism 57 that slides in the left-right direction of FIG. 11 (the direction perpendicular to the plane of FIG. 12). A lower end of a pressure source 59 such as an air cylinder is supported by the slider 56 via a holder 58, and the upper end thereof is
5b. In the cassette 60, a plurality of unsealed cells 61 are stored in a stacked manner.

Accordingly, in this state, a start switch (not shown) is turned on, and the plurality of cells 61 stored in the cassette 60 are gradually pressurized by the pressurizing source 59 based on predetermined trapezoidal pressure characteristics. This pressure change is performed by controlling the regulator via a driver in accordance with control data from the arithmetic means and controlling the pressure by the pressurizing source 59 to perform stepping pressurization. When the pressurization up to the maximum pressurizing force is completed in this manner, the plurality of cells 61 are held at the final pressurizing force, and the entire support 55 including the cassette 60 is rotated by the rotating mechanism 52 with the center of the output shaft 54 as the rotational axis. After rotating 90 ° counterclockwise (in the direction of the arrow shown in FIG. 11) to wipe out the liquid crystal leaking from the liquid crystal injection port, an ultraviolet curing adhesive is applied to the liquid crystal injection port of each cell 61.

Thereafter, the pressure on the plurality of cells 61 is gradually reduced based on a predetermined trapezoidal pressure characteristic, and the ultraviolet curable adhesive is cured by irradiating ultraviolet rays, whereby the sealing of the liquid crystal injection port is completed.

Thereafter, the pressure from the pressure source 59 is released, and the plurality of sealed cells 61 are taken out of the cassette 60. Therefore, the pressure applied to each of the plurality of cells 61 can be optimized, and the liquid crystal injection ports of each of the plurality of cells 61 can be simultaneously sealed.

[0008]

The problem with the conventional liquid crystal display cell sealing device and sealing method is that the manufacturing efficiency is low. The reason is that a plurality of liquid crystal display cells are stacked in units of cassettes. This is because the pressurization step, the wiping step, the application step, and the ultraviolet irradiation step must be completed before the next liquid crystal display cell can be put into the apparatus.

Therefore, the present invention provides a sealing device for a liquid crystal display cell which can improve the manufacturing efficiency remarkably by making the pressure applied to the liquid crystal display cell in an optimum state, without reducing the yield due to cell damage or variations in the sealing state. And to provide a sealing method

[0010]

The liquid crystal display cell sealing device and the sealing method of the present invention employ the following characteristic structures and steps in order to solve the above-mentioned problems.

(1) In a liquid crystal display cell sealing device for sealing a liquid crystal injection port of a liquid crystal display cell, a plurality of liquid crystal display cells into which liquid crystal has been injected are stacked and pressurized so as to be maintained in an initial pressurized state. A jig, a conveying unit for conveying the pressing jig,
A liquid crystal injection port sealing means for sealing a liquid crystal injection port in a state where pressure is applied to the liquid crystal display cell held by the pressing jig transferred to the set position by the transfer means. The configuration is as follows.

(2) The liquid crystal injection port sealing means of (1) is transferred to a loader unit on which the pressurizing jig is mounted, and the pressurizing jig is set at a setting position of each unit described later. Means for pressurizing and depressurizing the liquid crystal display cell held by the pressurizing jig conveyed by the conveying means from the set position of the loader unit by a pressurizing mechanism, and A pressurization / wiping unit for wiping excess liquid crystal oozing out of a liquid crystal injection port of the liquid crystal display cell, and held by the pressing jig conveyed by the conveyance means from a set position of the pressurization / wiping unit. An application unit for applying an ultraviolet curing sealant to a liquid crystal injection port of the liquid crystal display cell, and ultraviolet curing of the liquid crystal display cell held by the pressing jig conveyed by the conveyance means from a set position of the application unit. For sealant An ultraviolet irradiation unit that irradiates and cures ultraviolet light, and an unloader unit that discharges the pressing jig from the set position of the ultraviolet irradiation unit by the transport unit.

(3) The liquid crystal injection cell sealing means of (1) or (2) is pressed in the stacking direction of the liquid crystal display cells held by the pressing jig to uniformly correct the gap. Means for controlling the amount of the sealant entering by reducing the pressure is provided.

(4) The pressing jig according to any one of (1) to (3) is laminated on a plurality of liquid crystal display cells into which liquid crystal has been injected while positioning the liquid crystal display cells, and is initially set by a spring. It is configured so that it can be held in a pressurized state.

(5) The pressing jig according to any one of (1) to (4) is initially laminated by alternately stacking the liquid crystal display cells and the spacer sheet on a plurality of liquid crystal display cells into which liquid crystal has been injected. It is configured so that it can be held in a pressurized state.

(6) In a method of sealing a liquid crystal display cell for sealing a liquid crystal injection port of a liquid crystal display cell, a pressure that can stack a plurality of liquid crystal display cells into which liquid crystal has been injected and hold the cell in an initial pressure state. The jig is sequentially conveyed to a plurality of steps for forming a liquid crystal injection port sealing step, and a predetermined step is performed on the pressing jig set in the conveyed step.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a sealing device and a sealing method for a liquid crystal display cell according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing a sealing device for a liquid crystal display cell according to an embodiment of the present invention, FIG. 2 is a plan view, and FIG. 3 is a flowchart showing each step in the sealing device. is there.

The sealing device for this liquid crystal display cell is shown in FIGS.
As shown in FIG.
Is set on the loader unit 3 and the loader unit 3
A transfer actuator (not shown) for transferring the pressing jig 2 into the pressing mechanism 6 of the transfer unit 5 and a transfer guide 4
It has.

As shown in detail in FIGS. 4 and 5, the pressing jig 2 has a positioning block 25 set at a position corresponding to the type size of the liquid crystal display cell 1, and a positioning block 25 attached to the positioning block 25. Liquid crystal display cells 1
And a plurality of resin sheets 22 (spacer sheets) having a thickness of 1 mm are alternately laminated, and the upper and lower portions thereof are sandwiched between a cushion rubber 23 having a thickness of 2 mm and a metal plate 24 of stainless steel having a thickness of 15 mm. The pressure block 26 holds the initial pressure state. The initial pressure at that time is about 50 kgf to 100 kgf, and is set by the force of the pressure spring 28 of the stainless steel holder block 27.

The pressing jig 2 can be transported alone to hold the liquid crystal display cell 1 by setting it to an initial pressing state. The resin sheet 22 is desirably made of Teflon (trade name) resin which is flexible and elastic with little characteristic variation. Since the outer shape of the liquid crystal display cell 1 and the resin sheet 22 are positioned by the positioning block 25, it is possible to reliably set the plurality of liquid crystal display cells 1 at the pressing position. Further, since the positioning block 25 can change the set position so as to correspond to each size of the liquid crystal display cell 1, it can correspond to various types.

The transport unit 5 includes a pressure mechanism 6, a motor 8 capable of pulse control as a driving source for transporting the pressure mechanism 6, a ball screw 9, and a linear motion bearing (not shown) on the transport guide 4.

The pressure mechanism 6 serves as an actuator for pressurizing the liquid crystal display cell 1 with the pressure block 26 of the pressing jig 2 in order to make the gaps of the liquid crystal display cell 1 uniform. A cylinder 7 is provided.

Pressurization control for pressurizing the display surface of the liquid crystal display cell 1 is performed by a regulator capable of electrically controlling a fluid pressure of about 100 kgf to 1500 kgf thrust pressed by a fluid cylinder 7 having an inner diameter of 160 mm.

The transfer unit 5 includes a delivery position of the pressing jig 2 of the loader unit 3, a wiping position of the wiping unit 10, a fixed position of the coating unit 11, an irradiation position of the ultraviolet irradiation unit 17, and a pressurizing treatment of the unloader unit 20. The tool 2 moves to the receiving position. These positions are set positions.

The wiping unit 10 includes the liquid crystal display cell 1
Is pressurized to wipe off excess liquid crystal oozing out of the injection port 29 of the liquid crystal display cell 1 with a roll-shaped wiping cloth 31 having a width of 300 mm. FIG. 6 shows a detailed configuration, and FIG. FIG.

The feed mechanism for the wiping cloth 31 is a set shaft 3 for applying tension by a torque motor (not shown).
2. A crown-shaped tension shaft 33 for preventing meandering, and a guide shaft 3 for pressing the wiping cloth 31 against the liquid crystal display cell 1.
4. Feed shaft 3 for feeding wiping cloth 31 by motor (not shown)
5, a holding shaft 36 for sandwiching the wiping cloth 31 with the feed shaft 35, and a winding shaft 37 for winding the wiping cloth 31 by a torque motor (not shown). The wiping mechanism includes an actuator 3 that moves between the guide shafts 34.
8. Roller 39 pressed against wiping cloth 31 and rotated,
An actuator 40 that moves up and down the roller 39, a sub-base 42 on which the roller 39 and the actuator 40 are mounted, a drive actuator 43 that moves up and down the sub-base 42, and a linear guide 44.

An XYZ robot 12 is mounted on the coating unit 11. This XYZ robot 12
FIG. 8 shows the detailed configuration, and FIG. 9 shows the operation state. One of the orthogonal coordinate (XY) axes and the Z axis are two.
Axis and one X-axis for Z-axis pitch movement. A container 13 containing a sealing agent and a container 13
A nozzle 14 is provided at the tip of the device, and an ultraviolet curable resin is used as a sealant. The XYZ robot 12 moves the nozzle 14 to a predetermined position according to a command, and the pressurized gas is sent into the container 13 via the pressure feeding tube 16 by the discharge controller 15, and the sealing agent in the container 13 is discharged from the nozzle 14. Then, it is applied to the injection port 29 of each liquid crystal display cell 1.

Further, since the XYZ robot 12 can move the coating nozzle 14 freely within the operating range of the XYZ robot 12, the XYZ robot 12 can apply the liquid crystal display cells 1 in a total number. By changing the operation program of the XYZ robot 12, it is possible to cope with various types of liquid crystal display cells 1 having different positions of the injection port 29.

The head of the coating unit 11 is
When the XYZ robot 12 moves down the Z axis, the height detection roller 44 and the height detection roller 45 are used to ensure reproducibility of the gap between the liquid crystal display cell 1 and the nozzle 14 and to perform stable application.
Is provided with an actuator 46 which moves up and down.

The ultraviolet irradiation unit 17 is provided with an ultraviolet lamp 18 and an irradiation guide 19. The liquid crystal display cell 1 coated with the sealing agent was moved into the ultraviolet irradiation chamber unit 17 by the transport unit 5 and was irradiated with ultraviolet light by turning on the ultraviolet lamp 18, and was applied to the injection port 29 by the irradiation guide 19. The sealant is cured. The irradiation light quantity is managed by an integrating light quantity meter (not shown), and the reduction of the illuminance due to the deterioration of the lamp or the like is corrected.

The unloader unit 20 includes an actuator (not shown) for discharging the pressing jig 2 from the delivery position of the transport unit 5 and a transport guide 21.

Next, the operation will be described according to steps # 1 to # 15 shown in FIG. Usually, in the liquid crystal display cell 1 into which liquid crystal has been injected, the gap is widened, and if the gap value is not appropriate, display unevenness may occur. Therefore, the appropriate gap value is 5 μm. The one in which the liquid crystal is sealed has spread to 5 to 6 μm.

A plurality of liquid crystal display cells 1 into which liquid crystal has been injected.
And a plurality of resin sheets 22 are alternately stacked on the pressing jig 2, and set in an initial pressing state (about 50 kgf) by the pressing plate 25 of the pressing jig 2. In this example, a maximum of 44 liquid crystal display cells 1 can be stacked and processed (#
1).

Next, the pressing jig 2 is set at the setting position of the loader unit 3. At this time, the pressing jig 2 is set so that the injection port 29 of the liquid crystal display cell 1 faces the upper surface (# 2).

Next, the transfer unit 4 transfers the transfer unit 5 into the pressurizing mechanism 6 of the transfer unit 5 using the transfer actuator (not shown) of the loader unit 3 and the transfer guide 4. At this time, the transport unit 5 has been moved to the delivery position of the pressing jig 2 (# 3).

Next, the transport unit 5 is moved to the wiping position. After the movement, pressurization is performed by controlling the fluid pressure of the fluid cylinder 7 having an inner diameter of 160 mm. This pressurization is performed based on preset pressurization data, and pressurization is performed with the passage of time by an electrically controllable regulator (# 4).

Next, during the execution of the pressurization control, the excess liquid crystal oozing out from the injection port 29 of the liquid crystal display cell 1 or adhering around the injection port 29 of the liquid crystal display cell 1 is wiped by the wiping unit 10. Wipe off. During the execution of the pressurization control, the wiping operation is performed several times (four times in this example) to remove the excess liquid crystal of the liquid crystal display cell 1. If this surplus liquid crystal remains,
This has an adverse effect on the application and curing of the sealant described below.

As shown in FIG. 7, the sub-base 42 is first lowered to the wiping surface of the liquid crystal display cell 1 by the drive actuator 43, and the roller 39 is moved between the guide shafts 34 by an actuator 38 as shown in FIG. Moves to the wiping start position of the liquid crystal display cell 1. Next, the roller 39 is lowered by the actuator 40 that moves the roller 39 up and down, and the wiping cloth 31 is pressed against the liquid crystal display cell 1. Next, in this state, the roller 39 is moved to the wiping end position by the actuator 38 that moves between the guide shafts 34. Then, the roller 39 is moved up by the actuator 40 to return to the wiping start position, and the wiping cloth 31 is fed and wound by the width of the liquid crystal display cell 1. This operation is repeated several times to wipe off excess liquid crystal. In this wiping operation, since the roller 39 is rotating when moving, the wiping cloth 31 can be pressed without rubbing, and therefore, it is possible to reduce the generation of static electricity generated at the time of wiping (# 5). .

Next, the transport unit 5 is operated to move the liquid crystal display cell 1 to the coating position of the coating unit 11 (#
6).

Next, the XYZ robot 12 is operated, the nozzle 14 is moved to the coating start position of the injection port 29 of the liquid crystal display cell 1, and the nozzle 14 is lowered to the set height. Next, the discharge controller 15 is operated, and pressurized gas is sent from the discharge controller 15 to the container 13 via the pressure feeding tube 16, and the sealing agent in the container 13 is discharged from the nozzle 14. The XYZ robot 12 is operated at the same time as the discharge. This is applied to the injection port 29 of the liquid crystal display cell 1. The pressure of the pressurized gas for discharge can be adjusted by the discharge controller 15, and the discharge amount of the sealing agent per unit time can be adjusted by changing the discharge pressure. With respect to all the liquid crystal display cells 1 set in the pressing jig 3, the sealing agent is applied to the injection port 29. In this example, an ultraviolet curable resin is used as a sealant. This can be stored at room temperature without curing if the ultraviolet light is shielded, and can be cured in a short time by irradiating a predetermined amount of ultraviolet light. Because you can.

The operation of detecting the height of the nozzle 14 is shown in FIG.
As shown in the operations A to D shown in (1), the Z axis is first lowered with the height detection roller 44 protruding in the operation A, and in the next operation B,
When the height detection roller 44 detects during the Z-axis lowering operation, the Z-axis is stopped, and the application operation is performed at that height (operation C and operation D). As a result, a stable coating state T is obtained irrespective of whether the liquid crystal display cell 1 is cut or set.
Can be secured (# 7).

Next, the fluid pressure in the fluid cylinder 7 is controlled to reduce the pressure. The pressure reduction is performed based on preset pressure data, and the pressure is reduced over time by an electrically controllable regulator. By reducing the fluid pressure pressing the display surface of the liquid crystal display cell 1, the liquid crystal display cell 1
It is possible to adjust the amount (return amount) of the sealant applied to the injection port 29 into the injection port 29 and completely close the injection port 29 (# 8).

Next, the transport unit 5 is operated to move the liquid crystal display cell 1 to the ultraviolet irradiation unit 17 (#
9).

Next, the ultraviolet lamp 18 is turned on to irradiate the sealing agent applied to the injection port 29 of the liquid crystal display cell 1 with a certain amount of ultraviolet light. Irradiation light collectively irradiates only the sealant portion by the irradiation guide 19. Since an ultraviolet curable resin is used as the sealant, the resin is cured by irradiating ultraviolet rays, and the injection port 29 can be sealed (# 10).

Next, when the irradiation of the ultraviolet rays is completed, the transport unit 5 is operated to move to the delivery position of the pressing jig 2 (# 1).
1).

Next, the pressing force of the fluid cylinder 7 is released to release the holding of the pressurizing jig 2 (# 12).

Next, the pressing jig 2 in the pressing mechanism 6 of the transfer unit 5 is transferred to the unloading position of the unloader unit 20 by the transfer actuator (not shown) and the transfer guide 21 of the unloader unit 20 (#). 13).

Next, the pressing jig 2 is taken out of the unloader unit 20 (# 14).

Next, the stacked liquid crystal display cells 1 and the resin sheet 22 are alternately taken out from the pressing jig 2 to complete a series of sealing operations (# 15).

The pressing jig 2 configured and operated as described above may be configured as a pressing jig 2A shown in FIG.

The fluid cylinder 7 is provided as an actuator for pressurizing the liquid crystal display cell 1, and the pressure control for pressurizing the display surface of the liquid crystal display cell 1 is controlled by a regulator capable of electrically controlling the fluid pressure of the fluid cylinder 7. By using the pressurizing jig 2A provided with the fluid cylinder 7 as a pressurizing actuator and using the conveyor unit as the transport unit 5, the "wiping unit 10, the coating unit 1
1, the ultraviolet irradiation unit 17 (see FIGS. 1 and 2) "can be provided with the pressing jig 2A at each position, and the processing of each unit does not enter a standby state, so that the manufacturing efficiency can be further improved.

[0053]

According to the liquid crystal display cell sealing apparatus and method of the present invention, a liquid crystal display cell is provided by adding a pressing jig for holding the liquid crystal display cell in an initial pressurized state and a transfer step. Has a remarkable effect that the production efficiency can be improved.

The reason is that the pressing jig for holding the liquid crystal display cell in the initial pressurized state by using a spring while the liquid crystal display cell and the spacer are positioned and positioned with the spacer is used, so that it is not affected by the operation state of the apparatus. This allows the work to be performed while positioning the liquid crystal display cell and the spacer. Also, the pressing jig can hold the liquid crystal display cell and transport it alone,
This is because a transfer process for loading and unloading the pressing jig could be added.

Further, according to the liquid crystal display cell sealing device and the sealing method of the present invention, the liquid crystal display cells (or spacer sheets are interposed) are laminated while being positioned, and the liquid crystal display cell is initially pressurized by a spring. A pressure jig for holding the cell is used. For this reason, pre-setup can be performed by means other than the sealing device. That is, the work of laminating while positioning the liquid crystal display cell (or interposing the spacer sheet),
The manufacturing efficiency is improved because it is not affected by the operation state of the device.

Further, since a transfer step for loading and unloading the pressing jig is added, the loading of the pressing jig requires
There is no need to wait until the ejection of the pressing jig, and the manufacturing efficiency is improved. Therefore, the present invention provides a liquid crystal display cell sealing device and a sealing device capable of remarkably improving the production efficiency without reducing the yield due to cell damage or variations in the sealing state by optimizing the pressure applied to the liquid crystal display cell. A method can be provided.

[Brief description of the drawings]

FIG. 1 is a front view of a liquid crystal display cell sealing device according to an embodiment of the present invention.

FIG. 2 is a plan view of a liquid crystal display cell sealing device according to an embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of a liquid crystal display cell sealing device and a sealing method according to an embodiment of the present invention.

FIG. 4 is a front view of a pressing jig in the liquid crystal display cell sealing device according to one embodiment of the present invention.

FIG. 5 is a view of the pressing jig shown in FIG.

FIG. 6 is a front view of a wiping unit in the liquid crystal display cell sealing device according to one embodiment of the present invention.

FIG. 7 is a front view for explaining the operation of the wiping unit shown in FIG. 6;

FIG. 8 is a front view of a coating head in the liquid crystal display cell sealing device according to one embodiment of the present invention.

9 is a front view for explaining the operation of the coating head shown in FIG.

FIG. 10 is a front view of a pressing jig in a liquid crystal display cell sealing device according to another embodiment of the present invention.

FIG. 11 is a front view of a conventional liquid crystal display cell sealing device.

12 is a side view of the liquid crystal display cell sealing device shown in FIG.

[Explanation of symbols]

 Reference Signs List 1 liquid crystal display cell 2 pressurizing jig 3 loader unit 4 transfer guide 5 transfer unit 6 pressurizing mechanism 7 fluid cylinder 8 servo motor 9 ball screw 10 wiping unit 11 coating unit 12 XYZ robot 13 container 14 nozzle 15 discharge controller 16 pressure feeding tube 17 ultraviolet ray Irradiation unit 18 Ultraviolet lamp 19 Irradiation guide 20 Unloader unit 21 Transport guide 22 Resin sheet 23 Cushion rubber 24 Metal plate 25 Positioning block 26 Pressure block 27 Holder block 28 Pressure spring 29 Injection 31 Wiping cloth 32 Set shaft 33 Tension shaft 34 Guide shaft 35 Feed shaft 36 Pressing shaft 37 Take-up shaft 38 Actuator 39 Roller 40 Actuator 42 Subbase 43 Drive actuator 44 Linear Guide

Claims (6)

[Claims] 1. A liquid crystal display cell sealing device for sealing a liquid crystal injection port of a liquid crystal display cell, wherein a plurality of liquid crystal display cells into which liquid crystal has been injected are stacked and held in an initial pressurized state. A transfer means for transferring the pressurizing jig; and a liquid crystal injection port in a state where pressure is applied to the liquid crystal display cell held by the pressurized jig transferred to the set position by the transfer means. And a liquid crystal injection port sealing means for sealing the liquid crystal display cell. 2. The liquid crystal injection port sealing unit includes: a loader unit on which the pressing jig is placed; a conveying unit for setting the pressing jig at a setting position of each unit described below; The pressurizing mechanism pressurizes and depressurizes the liquid crystal display cell held by the pressurizing jig conveyed by the conveying means from the set position of the unit, and the liquid crystal of the liquid crystal display cell when pressurized by the pressurizing mechanism. A pressure / wiping unit for wiping excess liquid crystal oozing out of an inlet; and a liquid crystal display cell held by the pressure jig conveyed by the conveyance means from a set position of the pressure / wiping unit. An application unit for applying an ultraviolet-curing sealant to the liquid crystal injection port; and an ultraviolet-curing sealant for the liquid crystal display cell held by the pressing jig conveyed by the conveyance unit from a setting position of the application unit. Illuminate The liquid crystal display cell according to claim 1, further comprising: an ultraviolet irradiation unit that cures and cures; and an unloader unit that discharges the pressing jig from the set position of the ultraviolet irradiation unit by the transport unit. Sealing device. 3. The liquid crystal injection port sealing means presses the liquid crystal display cell held by the pressing jig in the stacking direction to uniformly correct the gap, and reduces the pressure to reduce the amount of the sealing agent. The device for sealing a liquid crystal display cell according to claim 1 or 2, wherein a means for controlling the liquid crystal display cell is provided. 4. The pressurizing jig is configured so that a plurality of liquid crystal display cells into which liquid crystal has been injected are stacked while positioning the liquid crystal display cells, and can be held in an initial pressurized state by a spring. The liquid crystal display cell sealing device according to any one of claims 1 to 3, wherein: 5. The pressurizing jig is configured such that, for a plurality of liquid crystal display cells into which liquid crystal has been injected, the liquid crystal display cells and spacer sheets are alternately stacked and held in an initial pressurized state. The liquid crystal display cell sealing device according to any one of claims 1 to 4, wherein: 6. A method for sealing a liquid crystal display cell for sealing a liquid crystal injection port of a liquid crystal display cell, comprising: a step of stacking a plurality of liquid crystal display cells into which liquid crystal has been injected; A liquid crystal display cell comprising sequentially transporting a tool to a plurality of steps for forming a liquid crystal injection port sealing step, and performing a predetermined step on the pressing jig set in the transported step. Sealing method.