JPH09197416A - Liquid crystal display device and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve display quality by forming struts to be formed in a sealing port for injection of liquid crystals to a channel shape or U shape having an aperture opening on the outer side of a liquid crystal display panel, thereby accurately forming the sealing port for injection of the liquid crystals and the strut of the sealing port for injection in forming a sealing material by a dispenser system. SOLUTION: Sealing patterns are plotted by using a thermosetting type epoxy resin material by the dispenser system on the electrode forming surface of one electrode substrate, for example, a common electrode substrate 100 formed with respective electrodes, alignment layer, etc., to form a plotting start part, end part, sealing material 9 and the strut patterns in the sealing part 16 for injection of the liquid crystals. The common electrode substrate 100 formed with the sealing patterns and a segment electrode substrate 110 are arranged to face each other and these substrates are cut along cutting lines to form the struts 18 of the channel shape (or U shape) having the apertures opening to the outer side of the liquid crystal display panel within the sealing part 16 for injection of the liquid crystals. As a result, the coating accuracy within the sealing part 16 for injection of the liquid crystals is improved and the degradation in gap length accuracy is prevented, by which the display quality is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly to a technique effective when applied to the formation of a sealing material.

[0002]

2. Description of the Related Art FIG. 5 shows a color STN (Super Twi) used in a conventional simple matrix type liquid crystal display device.
FIG. 7 is a cross-sectional view showing a schematic configuration of a liquid crystal display panel of a Steed Nematic) system, and FIG. 6 is a cross-sectional view showing an enlarged main part of FIG.

In FIGS. 5 and 6, 1 and 2 are glass substrates, 3 is a light-shielding film, 4a, 4b and 4c are three color filters of R (red), G (green) and B (blue), respectively. 5 is a protective film, 6 and 7 are alignment films, 8 is a spacer, 9 is a sealing material, 10 is a liquid crystal layer, 11 and 12 are polarizing plates, 13 is a segment electrode, 14 is a common electrode, and 15 is a retardation plate. Is.

In the conventional color STN type liquid crystal display panel device, a plurality of segment electrodes 13 made of a band-shaped transparent conductive film (ITO) are formed on the glass substrate 1 side on the basis of the liquid crystal layer 10 to form a glass. A plurality of common electrodes 14 made of strip-shaped transparent conductive film (ITO) are provided on the substrate 2 side.
Is formed.

On the inner side (liquid crystal layer side) of the glass substrate 1, an alignment film 7 and a plurality of segment electrodes 13 are sequentially laminated.
Color filters (4a, 4b, 4c), a light-shielding film 3, a protective film 5, a plurality of common electrodes 14, and an alignment film 7 are sequentially stacked inside the glass substrate 2 (the liquid crystal layer side).

On the outside of the glass substrate 1, a polarizing plate 1 is provided.
1 and a retardation plate 15 are formed, and a polarizing plate 12 is formed outside the glass substrate 2.

The glass substrate 2, the light shielding film 3, the color filters (4a, 4b, 4c), the protective film 5, the common electrode 1
4. The alignment film 6 and the polarizing plate 12 are
0, a glass substrate 1, a segment electrode 1
3, the alignment film 7, the polarizing plate 11, and the retardation plate 15 constitute the segment electrode substrate 110.

A plurality of common electrodes 14 and segment electrodes 13 are arranged orthogonally to each other, and the segment electrodes 13 are provided for R (red), G (green), and B (blue) segments, respectively. Consists of electrodes.

The color filters (4a, 4b, 4)
c), the lattice-shaped light-shielding film 3 is formed so as to surround the common electrode 1.
4 and between the segment electrodes 13.

As a material for the light-shielding film 3, a metal film such as chromium or a synthetic resin film in which a black pigment such as carbon is dispersed is used.

Further, as shown in FIG. 5, the liquid crystal layer 10 is filled with a spacer 8 for keeping the thickness of the liquid crystal layer 10 uniform.

Here, as the spacer 8, glass fibers, alumina beads, plastic beads, silica beads, etc. are generally used.

FIG. 7 is a diagram showing an example of a method of manufacturing the color liquid crystal display panel shown in FIG.

The manufacturing method shown in FIG. 7 shows a method of manufacturing a color liquid crystal display panel in the case of manufacturing two electrode substrates from one glass substrate.

The color liquid crystal display panel shown in FIG. 5 is assembled by the following steps.

(A) Step 1 On the glass substrate 2, the light shielding film 3, the color filters (4a,
4b, 4c), the protective film 5, the common electrode 14, and the alignment film 6 are formed to manufacture the common electrode substrate 100.

Similarly, the segment electrode 13 and the alignment film 7 are formed on the glass substrate 2 to manufacture the segment electrode substrate 110.

(B) Step 2 A sealing material 9 made of a thermosetting epoxy resin material is formed around the common electrode substrate 100, and a spacer 8 is arranged inside the sealing material 9.

The sealing material 9 may be formed around the segment electrode substrate 110.

(C) Step 3 The common electrode substrate 100 and the segment electrode substrate 110 are superposed so that the pattern surfaces thereof are aligned with each other.
0 and the segment electrode substrate 110 while heating the outer surfaces thereof under pressure to cure the sealing material 9,
The segment electrode substrate 110 is adhesively sealed.

After that, the liquid crystal panel is cut.

(D) Step 4 The liquid crystal layer 10 is injected from the liquid crystal injection sealing port of the sealing material 9,
The liquid crystal injection sealing port is sealed with epoxy resin or the like, and finally, the retardation plate 15 and the polarizing plates (14, 15) are attached on the glass substrates (1, 2).

Conventionally, in the step (b) shown in FIG.
Sealing material 9 formed around the common electrode substrate 100
A screen printing method is adopted as a method of forming the.

FIG. 8 is a diagram for explaining a method of forming the sealing material 9 on the peripheral portion of the common electrode substrate 100 by the screen printing method, and FIG. 9 is a diagram showing a plane of the printing mask shown in FIG. Is.

In FIG. 8 or 9, 205 is a thermosetting epoxy resin material, 211 is a printing mask, 212 is an alignment mark, 213 is a printing pattern, 214 is a squeegee, and 215 is a printing table.

In the screen printing method shown in FIG. 8 or 9, the common electrode substrate 100 is set on the printing table 215,
The alignment mark 212 of the print mask 211 and the alignment mark of the common electrode substrate 100 are aligned and fixed,
Thermosetting epoxy resin material 2 on the surface of the printing mask 211
05 is moved, the squeegee 214 is moved, and the sealing material 9 is applied by printing on the peripheral portion of the common electrode substrate 100.

FIG. 10 is a plan view of one of the common electrode substrate 100 and the segment electrode substrate 110 in which the sealing material 9 is formed in the peripheral portion by the screen printing method shown in FIG. 8 or FIG. .

In FIG. 10, 16 is a liquid crystal injection sealing port,
Reference numeral 17 is a support, and 20 is a cutting line.

As shown in the step (d) of FIG.
One electrode substrate (common electrode substrate 100 or segment electrode substrate 1 shown in FIG.
10) and the other electrode substrate (segment electrode substrate 110)
Alternatively, the common electrode substrate 100) and the pattern surfaces are overlapped with each other and are arranged to face each other.

The respective electrode substrates arranged opposite to each other are adhesively sealed by curing the sealing material 9 under pressure and heating.

After that, the respective electrode substrates arranged so as to face each other are
For example, the liquid crystal layer 10 is injected and sealed by cutting along the cutting line 20 in FIG. 10.

FIG. 11 is a front view of a liquid crystal display panel in which one electrode substrate on which the sealing material 9 shown in FIG. 10 is formed and the other electrode substrate are arranged so as to face each other.
2 is an enlarged view of an essential part showing the liquid crystal injection sealing port shown in FIG. 10 or FIG. 11 in an enlarged manner.

In this case, when the liquid crystal layer 10 is injected and sealed, the gap between the electrode substrates inside the seal material 9 on which the liquid crystal layer 10 is formed is set to a vacuum state, and the liquid crystal sealing port 16 is immersed in the liquid crystal in this state. Then, a method of utilizing the capillary phenomenon between the electrode substrates is adopted.

Here, in the above liquid crystal injection and sealing method,
The liquid crystal injection sealing time depends on the cross-sectional area of the liquid crystal injection sealing opening 16 (the product of the width of the liquid crystal injection sealing opening and the gap) rather than the size of the glass substrate and the viscosity of the liquid crystal. The shorter the time, the higher the productivity.

However, since the gap between the electrode substrates is formed by curing the sealing material 9 in a state where the electrode substrates arranged opposite to each other are pressurized and heated, the width of the liquid crystal injection sealing port 16 is widened. As shown in FIG. 13, the glass substrates (1, 2) near the liquid crystal injection sealing port 16 are bent and the gaps between the electrode substrates are narrowed.
Since the cross-sectional area of the liquid crystal is reduced, the width of the liquid crystal injection sealing opening 16 cannot be simply increased to increase the cross-sectional area.

Further, when the width of the liquid crystal injection sealing port 16 is widened, the cell gap at the liquid crystal injection sealing port 16 portion becomes non-uniform, which changes the threshold voltage, resulting in a liquid crystal. There are cases where display unevenness such as color unevenness occurs on the display panel.

Therefore, the column 17 is formed in the liquid crystal injection sealing port 16 with the same material as the sealing material 9.

The shape of the column is circular with a diameter (φ) of 0.2 to 1 mm, or
As shown in FIG. 12, the width (S) is 0.2 to 0.5 mm
Then, a rectangular one having a length (L) of 1 to 2 mm is generally adopted.

[0039]

As described above, conventionally, the sealing material 9 formed on the peripheral portion of one of the common electrode substrate 100 and the segment electrode substrate 110 is formed by the screen printing method. Was there.

However, this screen printing method
Since the print pattern 213 of the print mask 211 can be produced by etching, it is easy to perform fine processing. On the other hand, when the seal material 9 is formed, the print mask 211 and the electrode substrate come into contact with each other. Alignment film (6 or 7) on the electrode substrate due to adhesion of foreign matter, etc.
There was a problem that was polluted.

For this reason, recently, a dispenser method is being adopted in which the sealing material 9 can be formed without contacting the electrode substrate.

FIG. 14 is a diagram for explaining a method of forming the sealing material 9 on the peripheral portion of one of the common electrode substrate 100 and the segment electrode substrate 110 by the dispenser method.

In FIG. 14, reference numeral 221 denotes a movable table 222.
Is a nozzle, 223 is a syringe, and 224 is high-pressure air (or nitrogen).

As shown in FIG. 14, in the dispenser system, the syringe 223 is filled with the material of the sealing material 9, and the syringe 223 is filled with high-pressure air (or nitrogen) 224.
Is applied to discharge the material of the sealing material 9 from the nozzle 222 provided at the tip of the syringe 223, and the moving table 221 is moved.
X the electrode substrate or syringe 223 placed on the
In this method, the sealing material 9 is drawn on the periphery of one of the electrode substrates by moving in the −Y direction.

Sealing material 9 in this dispenser system
The coating amount of the sealing material 9 is the viscosity, the applied pressure, and the nozzle 22.
2 and the moving speed of the electrode substrate or the syringe 223.

FIG. 15 is a diagram for explaining the sealing material 9 formed by this dispenser method.
15A is a plan view, FIG. 15B is a height of the drawn sealing material 9, and FIG. 15C is a cross-sectional view showing a cross section taken along line CC ′ of FIG. 15A. Is.

In FIG. 15, reference numeral 21 designates a drawing start portion.
Reference numeral 2 indicates a drawing end portion.

As shown in FIG. 15, in the dispenser method, the drawing start portion 21 and the drawing end portion 2 of the seal material 9 are drawn.
In the area of 2 mm of about 5 mm, the moving speed is not constant due to the relation of acceleration, so that the discharge amount of the sealing material 9 becomes unstable, and the coating amount of the sealing material 9 varies.

On the other hand, the gap length of the sealing material 9 depends on the number of spacers per unit area (dispersion density), that is, the coating amount of the sealing material, based on the size of the spacers mixed and dispersed in the material of the sealing material 9. It depends a lot.

Therefore, when the pillars 17 in the liquid crystal injection sealing opening 16 are formed by the dispenser method, it is difficult to form the fine pillars 17 with the same accuracy as the screen printing method, and the dispenser method is used. However, in the case where the pillar 17 is formed, there is a problem in that the gap length accuracy in the portion of the liquid crystal injection sealing port 16 is reduced, and display unevenness such as color unevenness occurs in the liquid crystal display panel.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to inject and seal liquid crystal when forming a sealing material by a dispenser method in a liquid crystal display device. It is an object of the present invention to provide a technique capable of improving the display quality of a liquid crystal display panel by accurately forming columns in the mouth and the liquid crystal injection sealing port.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

[0053]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

(1) A pair of electrode substrates, a seal material formed by providing a liquid crystal injection sealing port on one electrode substrate of the pair of electrode substrates, and the seal material disposed opposite to each other via the seal material. A liquid crystal display panel having a liquid crystal layer injected and sealed from the liquid crystal injection sealing port between a pair of electrode substrates,
A liquid crystal display device comprising a liquid crystal display panel in which at least one pillar is formed in the liquid crystal injection sealing opening,
The column formed in the liquid crystal injection sealing opening of the liquid crystal display panel is U-shaped (or U-shaped) having an opening that opens to the outside of the liquid crystal display panel.

(2) A pair of electrode substrates, a sealing material formed by providing a liquid crystal injection sealing port on one electrode substrate of the pair of electrode substrates, and the sealing material facing each other through the sealing material. A liquid crystal display panel having a liquid crystal layer injected and sealed from the liquid crystal injection sealing port between a pair of electrode substrates,
In the method for manufacturing a liquid crystal display device including a liquid crystal display panel in which at least one pillar is formed in the liquid crystal injection sealing port, either the step of manufacturing the pair of electrode substrates or the pair of electrode substrates A step of drawing a continuous seal pattern in which a drawing start portion and a drawing end portion each having a predetermined length, a sealing material, and a pillar pattern are integrally formed on the periphery of one electrode substrate by a dispenser, And assembling the pair of electrode substrates by heating and pressurizing the electrode substrates, and cutting the assembled pair of electrode substrates into a predetermined size to form a sealing material, a liquid crystal injection sealing port, and a liquid crystal display panel. Forming at least one U-shaped (or U-shaped) support column having an opening opening to the outside of the liquid crystal in the liquid crystal injection sealing opening; Characterized by comprising the step of injecting encapsulating the liquid crystal between the pair of electrode substrates.

According to the above means, when the seal pattern is drawn on the peripheral portion of one of the electrode substrates by the dispenser, the drawing start portion, the drawing end portion, the seal material, and the pillar pattern are continuously formed. Draw a seal pattern with a single stroke, assemble a pair of electrode boards, and then cut each electrode board to apply the seal material to the areas other than the drawing start area and drawing end area where the seal material application amount is unstable. Using the part where the amount is stable,
Since the liquid crystal injection sealing port and the U-shaped (or U-shaped) support column having the opening opening to the outside of the liquid crystal display panel are formed in the liquid crystal injection sealing port, it is drawn by the dispenser. It is possible to improve the coating accuracy of the pillar pattern in the liquid crystal injection sealing port.

As a result, the accuracy of the gap length of the liquid crystal injection sealing opening of the liquid crystal display panel can be prevented from deteriorating, and the display quality of the liquid crystal display panel can be improved.

[0058]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention in which the present invention is applied to a simple matrix type liquid crystal display device will be described in detail below with reference to the drawings.

In all the drawings for describing the embodiments of the present invention, components having the same functions are denoted by the same reference numerals, and their repeated description will be omitted.

In the liquid crystal display device which is one embodiment of the present invention, the shape of the liquid crystal injection sealing port and the formation of the sealing material of the color STN type liquid crystal display panel used in the simple matrix type liquid crystal display device. Although the method is different from that of the liquid crystal display panel shown in FIG. 6 or FIG. 5, the other configuration is the same as that of the liquid crystal display panel shown in FIG. 6 or FIG.

FIG. 1 shows a common electrode substrate 100 or a segment electrode substrate in which a seal pattern 9a is drawn on a peripheral portion of a liquid crystal panel used in a liquid crystal display device according to an embodiment of the present invention by a dispenser method. 11
It is a top view of either one of 0 electrode substrates.

In the embodiment of the present invention, as shown in FIG. 1, each electrode (common electrode 14, segment electrode 13),
The drawing of the seal pattern 9a is started by drawing the seal pattern 9a using the thermosetting epoxy resin material by the dispenser method on the electrode formation surface of the one electrode substrate on which the alignment films (6, 7) and the like are formed. The portion 21, the drawing end portion 22, the sealing material 9, and the pillar pattern 18a in the liquid crystal injection sealing opening 16 are formed.

As shown in FIG. 1, the pattern shape of the seal pattern 9a is such that the drawing start portion 21 and the drawing end portion 22 of the seal pattern 9a, the seal material 9, and the pillar pattern 18a in the liquid crystal injection sealing port 16 are continuous. Further, the drawing start portion 21 and the drawing end portion 22 of the seal pattern 9a, which are 5 mm or more, are drawn on the surplus portion of the electrode substrate.

The seal pattern 9a is formed by drawing from the drawing start portion 21 to the drawing end portion 22 of the pattern with one stroke.

One electrode substrate on which the seal pattern 9a shown in FIG. 1 is formed is overlapped with the other electrode substrate so as to match the pattern surface in the step (d) shown in FIG.

Each of the opposed electrode substrates is adhesively sealed by curing the seal pattern 9a under pressure and heating. After that, each of the opposed electrode substrates is cut along the cutting line shown in FIG. 1, for example. Cut along 20.

FIG. 2 shows a liquid crystal formed by arranging either one of the common electrode substrate 100 or the segment electrode substrate 110 on which the seal pattern 9a shown in FIG. 1 is formed and the other electrode substrate so as to face each other. FIG. 3 is a front view of the display panel, and FIG. 3 is an enlarged view of a main part showing an enlarged liquid crystal injection sealing port 16 shown in FIG. 1 or 2.

In a liquid crystal display panel in which one electrode substrate having the seal pattern 9a shown in FIG. 1 and the other electrode substrate are arranged so as to face each other, as shown in FIG. 2 or FIG. 9a is cut along a cutting line 20, and a U-shaped (or U-shaped) support 18 having an opening opening to the outside of the liquid crystal display panel is formed in the liquid crystal injection sealing opening 16. .

FIG. 4 shows a U-shape (or U) shown in FIG.
It is an enlarged view which expands and shows the bending part 18b of the pillar 18 of a character shape.

As shown in FIG. 4, a U-shape (or U
The bent portion 18b of the (column-shaped) support 18 is formed into a curved shape having a certain curvature (R), for example, a curvature (R) of 0.5 to 1 mm, whereby the dispenser draws the seal pattern 9a. At this time, the coating amount of the sealing material 9 becomes constant.

Further, the coating amount of the sealing material 9 varies, and the sealing coating amount is not uniform.
5 mm or more of the drawing start part 21 and the drawing end part 22 are provided in the surplus part of the electrode substrate cut by the cutting line 20, and the application amount of the seal material 9 of the other seal patterns 9 a becomes constant. I am trying.

The bent portion of the seal pattern 9a shown in FIG. 1 is the same as the bent portion 18b of the column 18 except for the surplus portion of the electrode substrate which is cut along the cutting line 20.
A certain curvature (R), for example, a curvature (R) of 0.5 to 1 mm
Is formed into a curved shape.

Next, an example of the seal pattern 9a of the liquid crystal display panel in the liquid crystal display device according to the embodiment of the present invention will be described.

In the embodiment of the present invention, the syringe 223 is used.
The diameter of the nozzle 222 provided at the tip of the nozzle is 0.2 mm, and the pressure applied to the syringe 223 is 0.5 to 1 Kg / m.
m ² , the moving speed of the moving base 221 is 50 to 90 mm /
sec, the height of the seal pattern 9a (see FIG.
(H) shown in (c) is 35 to 40 μm, seal pattern 9
It was drawn so that the width of a (B shown in FIG. 15C) was 0.35 mm.

As a result, the length (L1) of the supporting column 18 is 1 mm and the bent portion 18 is at the liquid crystal injection sealing port 16.
It was possible to obtain a liquid crystal display panel in which the distance (S1) between b was 10 mm, and the distance (S2) between the liquid crystal injection and sealing ports was 3 mm.

Further, in the embodiment of the present invention, the case where the present invention is applied to the color STN type liquid crystal display panel has been described, but the present invention is not limited to this.
Needless to say, the present invention can be applied to a TFT type liquid crystal display panel.

Although the present invention has been specifically described based on the embodiments, it is needless to say that the present invention is not limited to the above embodiments and various modifications can be made without departing from the scope of the invention.

[0078]

The effects obtained by typical ones of the inventions disclosed in the present application will be briefly described as follows.

(1) According to the present invention, in a liquid crystal display device, it is possible to improve the coating accuracy in the liquid crystal injection / filling port by making the amount of application of the pillar pattern in the liquid crystal injection / filling port drawn by the dispenser uniform. It will be possible.

(2) According to the present invention, in the liquid crystal display device, the display quality of the liquid crystal display panel is improved by preventing the accuracy of the gap length of the liquid crystal injection sealing opening of the liquid crystal display panel from decreasing. Is possible.

[Brief description of drawings]

FIG. 1 is an electrode of either a common electrode substrate or a segment electrode substrate in which a seal pattern is drawn on a peripheral portion by a dispenser method of a liquid crystal panel used in a liquid crystal display device according to an embodiment of the invention. It is a top view of a substrate.

FIG. 2 is a front view of a liquid crystal display panel formed by arranging either one of the common electrode substrate or the segment electrode substrate on which the seal pattern shown in FIG. 1 is formed and the other electrode substrate so as to face each other. .

FIG. 3 is an enlarged view of an essential part showing an enlarged liquid crystal injection sealing port shown in FIG. 1 or FIG.

FIG. 4 is an enlarged view showing an enlarged bent portion of the U-shaped (or U-shaped) column shown in FIG. 3;

FIG. 5 is a color STN (Super Twisted Nem) used in a conventional simple matrix type liquid crystal display device.
FIG. 3 is a cross-sectional view showing a schematic configuration of a liquid crystal display panel of an atic type.

FIG. 6 is an enlarged cross-sectional view of a main part of FIG.

7 is a diagram showing an example of a method of manufacturing the color liquid crystal display panel shown in FIG.

FIG. 8 is a diagram for explaining a method of forming a sealing material around the common electrode substrate by a screen printing method.

9 is a diagram showing a plane of the print mask shown in FIG. 8. FIG.

FIG. 10 is a plan view of one of the common electrode substrate and the segment electrode substrate on which a sealing material is formed in the peripheral portion by the screen printing method shown in FIG. 8 or FIG.

11 is a front view of a liquid crystal display panel formed by disposing one electrode substrate on which the sealing material shown in FIG. 10 is formed and the other electrode substrate so as to face each other.

12 is an enlarged view of an essential part showing an enlarged liquid crystal injection sealing port shown in FIG. 10 or FIG.

FIG. 13 is a diagram for explaining that when the width of the liquid crystal injection sealing port is widened, the glass substrate in the portion of the liquid crystal injection sealing port is bent in the assembly process of the electrode substrate.

FIG. 14 is a diagram for explaining a method of forming a sealing material on the peripheral portion of one of the common electrode substrate or the segment electrode substrate by a dispenser method.

FIG. 15 is a diagram for explaining a sealing material formed by a dispenser method.

[Explanation of symbols]

1, 2, glass substrate, 3 light-shielding film, 4a, 4b, 4c
R (red), G (green), B (blue) color filters, 5: protective film, 6, 7: alignment film, 8: spacer, 9:
Seal material, 9a ... Seal pattern, 10 ... Liquid crystal layer, 1
1, 12 ... Polarizing plate, 13 ... Segment electrode, 14 ... Common electrode, 15 ... Phase difference plate, 16 ... Liquid crystal injection sealing port, 1
7, 18 ... Posts, 18a ... Post patterns, 18b ... Bent portions, 20 ... Electrode substrate cutting lines, 21 ... Drawing start portion, 22 ... Drawing end portion, 100 ... Common electrode substrate, 11
0 ... Segment electrode substrate, 205 ... Thermosetting epoxy resin material, 211 ... Printing mask, 212 ... Alignment mark, 213 ... Printing pattern, 214 ... Squeegee, 215
… Printing table, 221,… moving table, 222… nozzle, 223…
Syringe, 224 ... High pressure air (or nitrogen).

Claims (2)

[Claims] 1. A pair of electrode substrates, a seal member formed by providing a liquid crystal injection sealing port on one electrode substrate of the pair of electrode substrates, and the pair disposed opposite to each other with the seal member interposed therebetween. A liquid crystal display panel having a liquid crystal layer injected and sealed from the liquid crystal injection sealing opening between the electrode substrates, the liquid crystal display panel having at least one pillar formed in the liquid crystal injection sealing opening. In the liquid crystal display device described above, the column formed in the liquid crystal injection sealing opening of the liquid crystal display panel is U-shaped (or U-shaped) having an opening opening to the outside of the liquid crystal display panel. Liquid crystal display device. 2. A pair of electrode substrates, a seal member formed by providing a liquid crystal injection sealing port on one electrode substrate of the pair of electrode substrates, and the pair disposed so as to face each other with the seal member interposed therebetween. A liquid crystal display panel having a liquid crystal layer injected and sealed from the liquid crystal injection sealing opening between the electrode substrates, the liquid crystal display panel having at least one pillar formed in the liquid crystal injection sealing opening. In the method for manufacturing a liquid crystal display device, a step of manufacturing each of the pair of electrode substrates,
A seal pattern, in which a drawing start portion and a drawing end portion each having a predetermined length, a sealing material, and a pillar pattern, are integrally formed and continuous with each other is provided around the periphery of one of the pair of electrode substrates. And a step of assembling the pair of electrode substrates by heating and pressurizing the pair of electrode substrates, and cutting the assembled pair of electrode substrates into a predetermined size by using a sealing material and a liquid crystal injection seal. Forming at least one U-shaped (or U-shaped) support post having a stop opening and an opening opening to the outside of the liquid crystal display panel in the liquid crystal injection sealing opening; And a step of injecting and sealing a liquid crystal between the electrode substrates, the manufacturing method of the liquid crystal display panel.