JP2000131703A - Liquid crystal display panel and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a packing material to play a role of a dike and to prevent the penetration of a liquid crystal layer into unnecessary portions when filling the liquid crystal layer by providing the panel with this packing material and further to allow the liquid crystal display panel of hitherto structure to utlize. SOLUTION: This liquid crystal display panel is constituted by bonding an upper substrate 5 an a lower substrate 7 to each other apart a specified spacing formed by a sealing part 15, providing the panel with the liquid crystal layer to be filled into the spacing from an aperture 21 formed in part of the sealing part 15 and end-sealing the aperture 21 by an end-sealing material. The panel has the packing material for preventing the penetration of the packing material to the unnecessary portions of the liquid crystal layer 19 in part of the sealing part 15 and the external shape of the substrates.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing portion used to hold a liquid crystal layer sealed between an upper substrate and a lower substrate. In a liquid crystal display panel having a structure in which a liquid crystal layer is held by a sealing material, a liquid crystal display having a structure in which a filler is filled between an outer shape of the liquid crystal display panel and a sealing portion to prevent the liquid crystal layer from penetrating into unnecessary portions. It is about panels. Further, the present invention relates to a manufacturing method for manufacturing a liquid crystal display panel. Particularly, the present invention relates to a structure effective for a liquid crystal display panel using a mixed liquid crystal layer containing a polymer in a liquid crystal layer.

[0002]

2. Description of the Related Art In a conventional liquid crystal display panel, a structure in which an auxiliary seal portion is provided in a seal portion, for example, as disclosed in
As disclosed in JP-A-90614, a liquid crystal display panel having a plurality of upper and lower substrates after bonding the upper and lower substrates by a sealing portion with a predetermined gap therebetween, and then cutting and separating the substrates. Is formed, and the formed sealing portion of the liquid crystal display panel has an opening portion and an auxiliary sealing portion provided in the vicinity of the opening portion.

Also, in order to prevent the substrate from cracking when processing the liquid crystal display panel from the upper and lower substrates, a portion that protrudes at the corner of the seal portion or an isolated seal portion is provided. Although there are reports, it does not prevent the liquid crystal layer from penetrating into unnecessary parts.

Further, as disclosed in Japanese Patent Application Laid-Open No. 9-90385, the auxiliary seal portion has a structure longer than the seal portion at the opening. Alternatively, it is disclosed that the tip of the auxiliary seal portion is bent. By using the seal portion having the above structure, dust generated when cutting the substrate can be reduced from adhering to the opening of the seal portion.

The prior application described above discloses that the liquid crystal layer enters the gap between the upper substrate and the lower substrate outside the seal portion during the step of injecting the liquid crystal layer into the display area of the seal portion through the opening of the seal portion, which is the object of the present application. Can be prevented to some extent.

However, due to the cutting accuracy of the upper substrate and the lower substrate,
The liquid crystal layer permeates outside the seal portion through the large substrate surface due to the chromatographic effect. In addition, the liquid crystal layer penetrates into an unnecessary gap between the upper substrate and the lower substrate due to breakage of the auxiliary seal projection.

Therefore, a structure is desired that prevents the liquid crystal layer from penetrating into unnecessary regions when the liquid crystal layer is injected from the opening of the seal portion into the display region of the seal portion. Furthermore, preventing the penetration of unnecessary parts prevents the diffusion of contamination from unnecessary parts into the liquid crystal layer,
It is possible to reduce the consumption of the liquid crystal layer and the step of removing unnecessary portions of the liquid crystal layer by washing.

In particular, when a mixed liquid crystal layer of a liquid crystal and a polymer is used as a liquid crystal layer and, for example, a transparent solid is formed in the liquid crystal layer by ultraviolet rays, an unnecessary portion of the liquid crystal layer is applied to the transparent solid by ultraviolet rays. By the thing being formed,
Removal of the mixed liquid crystal layer is more difficult than that of twisted nematic (TN) liquid crystal. Therefore, it is particularly desirable to prevent the liquid crystal layer from penetrating into unnecessary portions.

[0009]

Furthermore, in the conventional structure, an effective structure is desired. It is also required to disclose a manufacturing method for manufacturing the liquid crystal display panel.

[0010]

In order to achieve the above object, a liquid crystal display panel of the present invention and the liquid crystal display panel are used.

In the liquid crystal display panel of the present invention, the signal electrode provided on the upper substrate, the counter electrode provided on the lower substrate, and the upper substrate and the lower substrate are bonded to each other with a fixed gap provided therebetween by a seal. In a liquid crystal display panel having a liquid crystal layer to be injected into a gap from an opening provided in a part thereof, and the opening is sealed with a sealing material, the space between the sealing portion and the outer shape of the liquid crystal display panel substrate is filled. It has a structure in which the material has penetrated.

According to the liquid crystal display panel of the present invention, a signal electrode provided on an upper substrate, a counter electrode provided on a lower substrate, and an upper substrate and a lower substrate are bonded to each other with a fixed gap provided between the upper and lower substrates. A liquid crystal display panel including a liquid crystal layer to be injected into a gap from an opening provided in a part thereof, wherein the opening is sealed with a sealing material. Further, the structure has a structure in which the filler is penetrated in the vicinity of the protrusion.

3. The liquid crystal display panel according to claim 2, wherein the projection used in the liquid crystal display panel of the present invention has a symmetric structure with respect to the opening.

The liquid crystal display panel of the present invention is characterized in that it has a plurality of projections.

[0015] The filler for the liquid crystal display panel of the present invention is arranged in the vicinity of the protruding portion, and is located opposite to the opening of the protruding portion.

The filler for the liquid crystal display panel of the present invention is characterized in that it is an ultraviolet curable resin.

The liquid crystal layer of the liquid crystal display panel according to the present invention is characterized in that the liquid crystal layer comprises a mixed liquid crystal layer of a liquid crystal and an organic polymer.

According to the method of manufacturing a liquid crystal display panel of the present invention, a first substrate having an upper substrate and a second substrate having a lower substrate are provided with a certain gap by a seal having at least one opening. Laminating, filling the filler from the outer shape side of the substrate to the seal portion, injecting the liquid crystal layer from the opening, attaching the sealing material to the opening, and curing the sealing material. And a step.

In the method of manufacturing a liquid crystal display panel according to the present invention, the first substrate having a plurality of upper substrates for the liquid crystal display panel and the second substrate having the lower substrate for the plurality of liquid crystal display panels are each provided with a liquid crystal display panel. A step of providing a fixed gap by a seal portion having at least one opening portion, bonding the cut portion, a step of cutting by a cutting line in contact with the opening portion, and a step of filling the filler from the cutting line at a predetermined position from the opening portion. A step of filling up to the seal portion, a step of injecting a liquid crystal layer from the opening, a step of attaching a sealing material to the opening, a step of curing the sealing material, and a step of cutting and separating each liquid crystal display panel. It is characterized by including.

In the method of manufacturing a liquid crystal display panel according to the present invention, the first substrate having a plurality of upper substrates for the liquid crystal display panel and the second substrate having the lower substrate for the plurality of liquid crystal display panels are each provided with a liquid crystal display panel. A step of providing a fixed gap by a seal portion having at least one opening portion, bonding the cut portion, a step of cutting by a cutting line in contact with the opening portion, and a step of filling the filler from the cutting line at a predetermined position from the opening portion. A step of filling up to the seal portion, a step of injecting a liquid crystal layer containing liquid crystal and an organic monomer from the opening, a step of attaching a sealing material to the opening, and a step of converting the organic monomer of the liquid crystal layer into an organic polymer, The method includes a step of curing the sealing material and a step of cutting and separating the liquid crystal display panels.

<Operation> First, a first substrate on which a plurality of liquid crystal display panels are arranged and a second substrate are bonded to each other with a fixed gap provided by a seal portion. An opening is provided in a part of the seal portion. Each liquid crystal display panel has a signal electrode and a counter electrode, and an intersection of the signal electrode and the counter electrode becomes a pixel portion. The display area includes a plurality of pixel units. Further, a liquid crystal layer is injected into the display region from the opening. When the liquid crystal layer is injected, the liquid crystal layer permeates into unnecessary portions other than the display area. For example, a portion opposite to the display region with respect to the seal portion is a portion where terminal electrodes and the like for connecting to an external circuit are arranged.

In order to prevent the liquid crystal layer from penetrating into the above unnecessary portions, the present invention permeates the filler around the opening and between the first substrate and the second substrate. . When the filler comes into contact with the seal portion, the filler and the seal portion can prevent the liquid crystal layer from penetrating.

The spread area of the filler can be easily managed by controlling the supply amount of the filler. A method of controlling the supply amount is a method in which a fixed amount of the filler is attached by a dispenser including a container holding the filler, a pipe transferred from the container, and a syringe provided at the end of the pipe.
Alternatively, there is a method in which a screen plate having a hole in a portion where the filler is attached is used, and the filler on the plate is uniformly extruded from the hole with a squeegee.

In order to further control the spread of the filler,
A projection is provided on a part of the sealing material. The projection can prevent the filler from spreading at the edge of the sealing material.

Further, it is necessary to prevent the filler from closing the opening and preventing the filler from spreading too much in the direction of the side in contact with the side where the opening is provided. Therefore, although the amount of the filler can be controlled, a projection is further provided on the sealing material. This protrusion is on the side (side) where the opening contacts.
Therefore, it is provided in the vicinity of the side (side) in contact with the side (side) in contact with the opening, and in a portion slightly closer to the opening from the corner of the sealing material. Here, since the filler penetrates into the projection side on the side away from the opening, the time for the filler to penetrate into the opening side by the projection can be lengthened, so that the opening is closed by the filler. Can be prevented.

Further, in order to prevent the penetration and diffusion of the filler into the side (side) in contact with the side in contact with the opening,
In addition, a protruding portion is provided in a portion near the side. In the case where each liquid crystal display panel is formed from a first substrate having a plurality of upper substrates and a second substrate having a plurality of lower substrates, an adhesive is used to peel off the first substrate and the second substrate. It is not preferable that the layer is on the side because the substrate is damaged. Therefore, the protrusion provided on the side can prevent the filler from penetrating to the side. In addition, since the filler acts as a breakwater for the liquid crystal layer, it can naturally be prevented from penetrating into the sides.

The spread area of the filler can be controlled by the time after the filler is dropped at a predetermined place.
Therefore, the photocurable resin is very easy to control because the viscosity of the filler can be varied in a short time. Further, among the photocurable resins, the ultraviolet curable resin had good workability. Furthermore, in order to confirm the spread area of the filler near the seal portion, a mixture of a UV-curable resin and a dye such as a dye is used. As a result, the amount of spread of the filler can be measured visually or easily with an optical sensor,
The setting of the time for irradiating ultraviolet rays and the inspection after curing are also very easy.

In particular, when a mixed liquid crystal layer of a liquid crystal and a transparent solid is used for the liquid crystal layer, it is necessary to prevent the liquid crystal layer from penetrating into a portion corresponding to a side of the liquid crystal layer. The reason is that dissolution of the transparent solid or removal by washing is more difficult than liquid crystal. After injecting the liquid crystal layer into the display area from the opening, the transparent solid material polymerizes the monomer by ultraviolet rays. When the transparent solid material penetrates the side, it polymerizes at the side, so that the reaction at the interface with the substrate also proceeds. Therefore, the adhesion to the substrate is improved as compared with the liquid crystal. Therefore, the present invention is effective especially when a mixed liquid crystal layer is used as the liquid crystal layer.

It is needless to say that the liquid crystal layer can be prevented from penetrating by allowing the filler to penetrate into portions other than the display region of the first substrate and the second substrate. Therefore, the filler is allowed to penetrate into unnecessary parts other than the display area. As the filler, silicon-based oil or liquid crystal can be used. Also in this case, since the area of the filler can be controlled by increasing the viscosity of the filler after infiltrating the filler, the liquid crystal used for the filler is in a high temperature state, such as a cholesteric liquid crystal. The one that shows a liquid crystal phase is used.

As described above, in order to prevent the liquid crystal layer from penetrating into unnecessary portions of the liquid crystal display panel, the present invention employs a structure having a filler in a permeation passage of the liquid crystal layer into unnecessary portions. The adoption of the LCD panel improves the processability of the external shape of the LCD panel, prevents breakage of the substrate, improves electrical contact with external circuits, and furthermore, the liquid crystal layer adhered to unnecessary parts while using the LCD panel Can also be prevented from losing reliability due to bleeding into the terminal electrode.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS <First Embodiment> A liquid crystal display panel according to the best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 shows a liquid crystal display panel according to a first embodiment of the present invention,
FIG. 3 is a plan view arranged in three rows. FIG. 2 is an enlarged plan view of a portion corresponding to one row of the original substrate shown in FIG. FIG.
FIG. 3 is a sectional view taken along line AA of FIG. 2. FIG. 4 is an enlarged plan view of a portion corresponding to each liquid crystal display panel of FIG. FIG. 5 is a cross-sectional view taken along line BB of FIG. Hereinafter, the first embodiment will be described with reference to FIG. 1, FIG. 2, FIG. 3, FIG. 4, and FIG.

On the transparent first substrate 1, signal electrodes 11 made of an indium tin oxide (ITO) film as a transparent conductive film are provided alternately from left to right on the paper. An opposing electrode 12 opposing a signal electrode 11 on the first substrate 1 is provided on a second substrate 2 opposing the first substrate 1 at a predetermined distance. An overlapping portion between the signal electrode 11 and the counter electrode 12 becomes a pixel portion. The first substrate 1 and the second substrate 2 are original substrates constituting a plurality of liquid crystal display panels, and the liquid crystal display panels are arranged on the substrates 1 and 2 in an array of 4 rows and 3 columns. As shown in FIG. 3, the arrangement of the liquid crystal display panels in each row is
The upper substrate 5 having a larger width, the upper substrate 6 having a smaller width, and the upper substrate having a larger width are arranged in this order on the first substrate 1 side.
On the side, a lower substrate 7 having a smaller width, a lower substrate 8 having a larger width, and a lower substrate having a smaller width are arranged in this order.

Therefore, in each of the liquid crystal display panels obtained from the original substrates 1 and 2, a signal electrode 11 is provided on the upper substrate 5 based on a combination of the upper substrate 5 and the lower substrate 7, and a counter electrode is provided on the lower substrate 7. 12 are provided. Therefore, in the combination of the upper substrate 6 and the lower substrate 8, the counter electrode 12 is provided on the upper substrate 6 and the signal electrode 11 is provided on the lower substrate 8. That is, in the substrate 2, portions where the terminal electrodes 13 to be connected to the signal electrodes 11 of each liquid crystal display panel are provided alternately are provided, thereby preventing the substrate from being thrown away between the liquid crystal display panels. By arranging the liquid crystal display panels on the substrates 1 and 2 in this manner, the number of liquid crystal display panels that can be taken out of the original substrates 1 and 2 can be increased, and the number of times of cutting the substrates can be reduced. This is a particularly effective arrangement when a large number of liquid crystal display panels can be obtained from the substrates 1 and 2 with a small area, such as a liquid crystal display panel for a clock or a camera.

Here, for convenience, the substrate on which the signal electrode 11 is provided is referred to as the upper substrate 5, and the substrate on which the counter electrode 12 is provided is referred to as the lower substrate 7. That is, the substrate is designated based on the signal electrode 11 and the counter electrode 12. Each liquid crystal display panel has a signal electrode 11 composed of a plurality of segment electrodes provided on the upper substrate 5, a wiring electrode 14 connected to the signal electrode 11, and a wiring electrode 14 connected to an external circuit. And a terminal electrode 13 to be provided.

Further, on the lower substrate 7, a conductive electrode is provided to oppose the signal electrode 11, and the connection electrode 17 is provided on the upper substrate 5 in order to electrically transfer the counter electrode 12 to the connection electrode 17. The seal 16 is provided on the outer periphery of the seal 15.

The upper substrate 5 and the lower substrate 7 are bonded to each other with a predetermined gap provided by a sealing portion 15 made of epoxy resin. As shown in FIG.
Is a seal portion 15 constituting each liquid crystal display panel in the row direction.
And an opening 21 provided in a part of the seal portion 15.
The liquid crystal layer 19 is injected through the opening 21 of the seal portion 15. Further, as shown in FIG. 2, after the processing is performed for each row, the seal portion of the opening 21 is partially cut off to an adjacent row to form a seal remaining portion 22.

Further, as shown in FIG. 2, a filler 10 which is a feature of the present invention is provided on the left and right sides of the paper of the opening 21 of each liquid crystal display panel. The filler 10 is provided from the corner of the seal portion 15 to the opening 21 side. This can be better understood from the cross-sectional view of FIG. 3 and the enlarged plan view of the liquid crystal display panel of FIG.

In the state shown in FIG. 2, the liquid crystal layer 19 is injected from the opening 21 so that the opening 21 and the filler 1 are filled.
Unnecessary portions between zero and the permeation of the liquid crystal layer 19 occur, but other unnecessary portions have no permeation of the liquid crystal layer 19. Since the filling material 10 slightly protrudes from the outer shape of the substrates 1 and 2, even when the outer shape of any one of the substrates 1 and 2 becomes larger when processing the original substrate into a single strip, the filling material 10 is used. The penetration of the liquid crystal layer 19 can be completely prevented. This can be achieved because the filler 10 is formed after processing into a strip shape.

In the liquid crystal layer 19 used in the first embodiment, the liquid crystal is mixed with an acrylic organic monomer, and the liquid crystal is injected into the display area of the seal portion 15 and the upper and lower substrates 5 and 7. After that, the mixed liquid crystal layer which is irradiated with ultraviolet rays and polymerized into an acrylic organic polymer is used. for that reason,
Due to the adhesion between the organic polymer contained in the liquid crystal layer 19 and the substrates 5 and 7 or between the transparent conductive film and the organic polymer,
It becomes very difficult to remove the unnecessary liquid crystal layer 19 permeating into the terminal electrode 13.

Therefore, the permeation of the liquid crystal layer 19 into the portion of the terminal electrode 13 of the upper substrate 5 provided between each liquid crystal display panel, that is, an unnecessary portion, is caused by the filling material 10.
And the seal portion 15 can completely prevent the occurrence.
Therefore, removal of the liquid crystal layer 19 becomes very easy. Further, it is possible to reduce the amount of the liquid crystal layer 19 used and to prevent the diffusion of the contamination source from unnecessary portions into the liquid crystal layer 19.

As shown in the cross-sectional view of the liquid crystal display panel in FIG. 4, the shape of the seal portion 15 is such that the portions having the projections 18 have individual liquid crystal displays when the respective liquid crystal display panels are cut. The projection 18 is divided into panels.
In FIG. 4, for convenience, the projection 18 is connected to one of the liquid crystal display panels.
Indicates a state in which is left.

As is apparent from the above description, by providing the filler 10 around the opening 21 provided in the seal portion 15, the liquid crystal layer 19 is formed by the seal portion 15 and the filler 10.
Can be prevented from penetrating into unnecessary parts. Therefore, the amount of the liquid crystal layer 19 used can be reduced and the difficulty of removing the liquid crystal layer 19 on the terminal electrode 13 can be remarkably improved. In particular, when a liquid crystal layer 19 used in the first embodiment, which is a mixed liquid crystal layer composed of liquid crystal and an organic polymer, is used, the area to be removed from the liquid crystal layer 19 is very small.
Since it is not attached on the terminal electrode 13 at all, the reliability of connection to an external circuit can be greatly improved without removing the liquid crystal layer 19.

<Manufacturing Method of First Embodiment> A manufacturing method of a liquid crystal display panel according to the first embodiment of the present invention will be described below with reference to the drawings. FIG. 6 is a plan view showing the shape of the original substrate in one row of strips in the first embodiment. FIG. 7 is a schematic diagram showing a state where a plurality of strips shown in FIG. 6 are stored in a cassette. FIG. 8 is a schematic diagram showing a state where a filler is printed on a predetermined portion of a strip. FIG.
FIG. 9 is a schematic diagram showing the printing state shown in FIG. FIG. 10 is a schematic diagram showing a state in which a liquid crystal layer is injected into each liquid crystal display panel. Hereinafter, the manufacturing process of the first embodiment will be described with reference to FIGS. 6, 7, 8, 9, and 10. FIG.

On the transparent first substrate 1, a signal electrode 11 made of an indium tin oxide (ITO) film, which is a transparent conductive film, is patterned. On the second substrate 2, a counter electrode 12 made of an indium tin oxide (ITO) film is patterned. A liquid crystal display panel of 4 rows and 3 columns is arranged on the substrates 1 and 2.

Next, a seal portion 15 is formed on the first substrate 1 by screen printing, and a plastic spacer of 8 μm (μm) is sprayed on the second substrate 2 to signal each other. The electrode 11 and the counter electrode 12 are bonded at a position where they face each other. An opening 21 for injecting the liquid crystal layer 19 is provided in the seal portion 15. Through the above steps, FIG. 1 used in the first embodiment is obtained.

Next, scribing and break processing are performed to obtain a strip shape for each line, and as shown in FIG.
A strip with three liquid crystal display panels is completed.

Next, as shown in FIG. 7, the opening 21 is positioned in the upward direction on the paper, and the position of the opening 21 is
Are aligned in a cassette (not shown) with the print position adjusted. The positional accuracy is adjusted by the outer shape of the cassette and the strip.

Next, as shown in FIGS. 8 and 9, the screen plate 48 is placed on the substrate packed in the cassette, and the filler 10 is extruded with the squeegee 50 through the screen holes 29 provided in the screen plate 48. The filler 10 is supplied to a predetermined position of the liquid crystal display panel. The filler 10 used in the first embodiment uses an ultraviolet curable resin. FIG. 8 shows a state in which a squeegee is installed on a sealing plate 48 having a sealing hole 49. FIG. 9 is a view showing a state in which the filler 10 is placed on the sealing plate 48, the squeegee is pulled from the back of the paper toward the user, and the filler 10 is slightly pushed out from the seal hole 49 onto the liquid crystal display panel.

According to the steps described above, a predetermined amount of the filler 10 is supplied to a predetermined position of the liquid crystal display panel, and the filler is provided between the first substrate 1 and the second substrate 2 by utilizing the capillary effect. Allow 10 to penetrate. When the filler 10 reaches the seal portion 15, ultraviolet rays are irradiated to fix the position of the filler 10.

Next, the first and second strip-shaped substrates 1 and 2 and the injection pins 51 containing the liquid crystal layer 19 at predetermined positions are placed in a vacuum container, and a vacuum is created. Next, the liquid crystal layer 19
Is brought into contact with the opening 21 and nitrogen (N2) gas is slowly introduced into the vacuum vessel to return the vacuum vessel to atmospheric pressure. The shape of the injection pin 51 used at this time is such that the position of the opening 21 of the substrate 1 or 2 has a shallow groove, and the filling material 10 has a deep groove on the outer side of the liquid crystal display panel. The structure prevents the liquid crystal layer 19 overflowing from the groove from adhering to the liquid crystal display panel.

Through the above steps, the liquid crystal layer 19 is injected into the display areas of the respective liquid crystal display panels of the strip-shaped substrates 1 and 2 from the opening 21 provided in the seal portion 15. Liquid crystal layer 19
Penetrates into a portion between the opening 21 and the filler 10, but does not penetrate into other unnecessary portions.

Next, as shown in FIG. 11, the strip-shaped substrates 1 and 2 are taken out of the vacuum container, the liquid crystal layer 19 near the opening 21 is wiped off, and the opening 21 is filled with a sealing material 23 made of epoxy resin. Is dropped by a dispenser. Further, ultraviolet rays are irradiated to the organic monomer contained in the sealing material 23 and the liquid crystal layer 19. The sealing material 23 is cured. The organic monomer contained in the liquid crystal layer 19 becomes a polymer because the polymerization reaction proceeds. By controlling the difference in the refractive index between the polymer and the liquid crystal by the voltage applied to the signal electrode 11 and the counter electrode 12, the display is performed with the ratio between the transmittance and the scattering degree being varied.

Next, as shown in FIG. 12, a scribing step and a breaking step are processed from the strip-shaped substrates 1 and 2 into the shape of each liquid crystal display panel. The liquid crystal layer 19 permeates between the display area and the opening 21 and the filler 10. Since there is a filler 10 in other parts, there is no penetration of the liquid crystal layer 19. Further, the filler 10 is provided on the substrates 1, 2.
Since the liquid crystal layer 19 slightly protrudes from the outer shape of (5, 7), the penetration of the liquid crystal layer 19 is completely stopped.

<Second Embodiment> Hereinafter, a liquid crystal display panel according to a second embodiment of the present invention will be described with reference to the drawings. The second embodiment is an example in which a protrusion 18 for preventing the filler 10 from penetrating into the terminal electrode 13 is provided on the seal 15. FIG. 13 is a plan view showing another structure of the liquid crystal display panel corresponding to FIG. 12 in the first embodiment of the present invention. In the following, the second
An embodiment will be described.

On the upper substrate 5, a signal electrode (not shown) made of an indium tin oxide (ITO) film as a transparent conductive film is provided. A counter electrode (not shown) made of a transparent conductive film is provided on the lower substrate 7 facing the upper substrate 5 at a predetermined distance. An overlapping portion between the signal electrode and the counter electrode becomes a pixel portion. It has a signal electrode composed of a plurality of segment electrodes provided on the upper substrate 5, a wiring electrode connected to the signal electrode, and a terminal electrode 13 provided outside the seal portion 15 for connecting the wiring electrode to an external circuit.

On the lower substrate 7, a counter electrode provided to face the signal electrode and a counter electrode are electrically connected to the upper substrate 5.
A conductive seal portion (not shown) is provided on the outer peripheral portion of the seal portion 15 in order to rearrange the connection electrodes 17 provided thereon.

The upper substrate 5 and the lower substrate 7 are bonded to each other with a predetermined gap provided by a sealing portion 15 made of epoxy resin. As shown in FIG.
And a projection 18 provided in a direction orthogonal to the side on which the opening 21 is provided. Projection 1
8 is provided at a position as far away from the opening 21 as possible. Further, on the opposite side (upper side of the paper) of the opening 21, a plurality of liquid crystal display panels are arranged, and therefore, a seal remaining portion 22 is provided.

Further, the filler 10 is provided in a shape in contact with the projection 18 and the seal 15. Filler 10 is projected
By supplying the filler 10 from a direction closer to the opening 21, the filler 10 has a shape that is farther from the opening 21 and in contact with the protrusion 18 and the seal 15.

A liquid crystal layer 19 is provided in a display area composed of a plurality of pixel portions which are hermetically sealed by the seal portion 15 and the sealing material 23.
Are sealed, and the liquid crystal layer 19 permeates between the filler 10 and the opening 21.

As described above, the liquid crystal layer 19 does not adhere to the portion of the terminal electrode 13 provided on the upper substrate 5 of the filler 10 due to the projection 18 provided on the seal portion 15. Therefore, the stabilization of the electrical connection between the terminal electrode 13 and an external circuit (not shown) can be greatly improved.

In the second embodiment, the sealing portion 1
5 is extended to the outer shape of the substrate. By adopting this structure, the filler 10 has the protrusion 1
8 is very effective because it can be almost completely blocked. In addition, it is possible to extend the permeation time of the filler 10 even if the shape does not extend to the outer shape.

Third Embodiment A liquid crystal display panel according to a third embodiment of the present invention will be described below with reference to the drawings. The third embodiment is an example in which a protrusion 18 for preventing the filler 10 from penetrating into the opening 21 is provided on the seal 15. The structure is particularly effective for a liquid crystal display panel in which the length of the side where the opening 21 is provided is short. FIG. 14 is a plan view showing another structure of the liquid crystal display panel corresponding to FIG. 12 in the first embodiment of the present invention. Hereinafter, the third embodiment will be described with reference to FIG.

A signal electrode (not shown) made of an indium tin oxide (ITO) film, which is a transparent conductive film, is provided on the upper substrate 5. A counter electrode (not shown) made of a transparent conductive film is provided on the lower substrate 7 facing the upper substrate 5 at a predetermined distance. An overlapping portion between the signal electrode and the counter electrode becomes a pixel portion. It has a signal electrode composed of a plurality of segment electrodes provided on the upper substrate 5, a wiring electrode connected to the signal electrode, and a terminal electrode 13 provided outside the seal portion 15 for connecting the wiring electrode to an external circuit.

On the lower substrate 7, a counter electrode provided opposite to the signal electrode and a counter electrode are electrically connected to the upper substrate 5.
A conductive seal portion (not shown) is provided on the outer peripheral portion of the seal portion 15 in order to rearrange the connection electrodes 17 provided thereon.

The upper substrate 5 and the lower substrate 7 are bonded to each other with a predetermined gap provided by a sealing portion 15 made of epoxy resin. As shown in FIG.
And a projection 18 provided in a direction orthogonal to the side on which the opening 21 is provided. Projection 1
Reference numeral 8 is provided at a portion slightly closer to the opening 21 side from the corner of the seal portion 15. Further, on the opposite side (upper side of the paper) of the opening 21, a plurality of liquid crystal display panels are arranged, and therefore, a seal remaining portion 22 is provided.

Further, the filler 10 is provided in a shape in contact with the projection 18 and the seal 15. Filler 10 is projected
The filler 10 can be formed between the protrusion 18 and the outer shape of the substrate 7 by being supplied from the direction of the outer shape of the substrate (left and right on the paper surface).

Further, a liquid crystal layer 19 is provided in a display area including a plurality of pixel portions sealed by the seal portion 15 and the sealing material 23.
Are sealed, and the liquid crystal layer 19 permeates between the filler 10 and the opening 21.

As described above, the projection 18 provided on the seal portion 15 can prevent the filler 21 from being diffused into the opening 21 to prevent the opening 21 from being blocked. Does not diffuse to the portion of the terminal electrode 13 provided on the upper substrate 5. Therefore, the stabilization of the electrical connection between the terminal electrode 13 and an external circuit (not shown) can be greatly improved.

In particular, in the structure of the second embodiment, the liquid crystal display panel having a small board outer shape in which the opening 21 and the outer shape of the lower substrate 7 (the left-right direction on the paper surface) are close to each other is different from the position of the protrusion 18. The position of the filler 10 is effective.

<Fourth Embodiment> A liquid crystal display panel according to a fourth embodiment of the present invention will be described below with reference to the drawings. In the fourth embodiment, in order to prevent the filler 10 from diffusing to both sides of the opening 21 side and the terminal electrode 13 side, the projection 1 is formed in a shape sandwiching the filler 10 from both sides.
This is an example in which 8 is provided on the seal portion 15. The opening 21
The protrusion 18 on the side where is provided reaches the outer shape of the substrates 5 and 7, and the protrusion 18 provided on the side in contact with is shorter than the outer shape of the substrate 7. This is to prevent the filler 10 from reaching the seal portion 15 due to bubbles.
FIG. 15 is a plan view showing another structure of the liquid crystal display panel corresponding to FIG. 12 in the first embodiment of the present invention. Hereinafter, a fourth embodiment will be described with reference to FIG.

A signal electrode (not shown) made of an indium tin oxide (ITO) film, which is a transparent conductive film, is provided on the upper substrate 5. A counter electrode (not shown) made of a transparent conductive film is provided on the lower substrate 7 facing the upper substrate 5 at a predetermined distance. An overlapping portion between the signal electrode and the counter electrode becomes a pixel portion. It has a signal electrode composed of a plurality of segment electrodes provided on the upper substrate 5, a wiring electrode connected to the signal electrode, and a terminal electrode 13 provided outside the seal portion 15 for connecting the wiring electrode to an external circuit.

Further, on the lower substrate 7, a counter electrode provided to face the signal electrode and a counter electrode are electrically connected to the upper substrate 5.
A conductive seal portion (not shown) is provided on the outer peripheral portion of the seal portion 15 in order to rearrange the connection electrodes 17 provided thereon.

The upper substrate 5 and the lower substrate 7 are bonded to each other with a predetermined gap provided by a sealing portion 15 made of an ultraviolet curable resin. As shown in FIG. 15, an opening 21 is provided in a part of the seal portion 15. Further, the opening 2
Protrusions 18 are provided at two places, a side where 1 contacts and a side orthogonal to the side. The protrusion 18 is provided at a portion slightly closer to the opening 21 and the terminal electrode 13 from the corner of the seal portion 15. Further, the shape of the projection 18 differs at two places, and extends to the outer shape of the substrates 5 and 7 on the side where the opening 21 is in contact, and has a shorter shape on the seal portion 15 side than the outer shape of the substrate 7 on the other side. . This is to prevent bubbles from being generated between the filler 10 and the seal portion 15 when the filler 10 penetrates into the seal portion 15. Further, the opening 2
A plurality of liquid crystal display panels are arranged on the opposite side (upper side of the paper) of FIG.

Further, the filler 10 is provided in a shape in contact with the projection 18 and the seal 15. The filler 10 can be formed between the two projections 18 by supplying the filler 10 from between the two projections 18.

The liquid crystal layer 19 is provided in a display area composed of a plurality of pixel portions sealed by the seal portion 15 and the sealing material 23.
Are sealed, and the liquid crystal layer 19 permeates between the filler 10 and the opening 21.

As described above, two projections 18 (a total of four projections) provided on the seal portion 15 on one side of the opening 21 are provided.
Accordingly, it is possible to block the opening 21 by diffusing the filler 10 into the opening 21 and prevent the filler 10 from adhering to the terminal electrode 13. Further, the liquid crystal layer 19 is formed by the filler 10.
Does not diffuse to the portion of the terminal electrode 13 provided on the upper substrate 5. Therefore, the stabilization of the electrical connection between the terminal electrode 13 and an external circuit (not shown) can be greatly improved.

Further, the shape of the projections 18 sandwiching the filler 10 is set so that one of them extends to the outer shape of the substrates 5 and 7, and the other extends to the middle between the substrate 7 and the seal 15, so that the filler 10 is sealed. It is possible to prevent air bubbles generated between the filler 10 and the seal portion 15 from being generated in the step of permeating up to 15. Therefore, even when the liquid crystal display panel is evacuated in the vacuum container when the liquid crystal layer 19 is injected, the filler 1
Since no space is generated between 0 and the sealing portion 15, the liquid crystal layer 19 does not penetrate into the terminal electrode 13 side.

<Fifth Embodiment> A liquid crystal display panel according to a fifth embodiment of the present invention will be described below with reference to the drawings. The feature of the fifth embodiment is that the seal portion 1
5 is octagonal, and the outer shape of the substrate constituting the liquid crystal display panel is also octagonal. Further, the portion where the filler 10 is provided is provided on a side between the side where the terminal electrode 13 is provided and the side where the opening 21 contacts. FIG.
13 is a plan view showing another structure of the liquid crystal display panel corresponding to FIG. 12 of the first embodiment. Hereinafter, the fifth embodiment will be described with reference to FIG.

A signal electrode (not shown) made of an indium tin oxide (ITO) film, which is a transparent conductive film, is provided on the upper substrate 5. A counter electrode (not shown) made of a transparent conductive film is provided on the lower substrate 7 facing the upper substrate 5 at a predetermined distance. An overlapping portion between the signal electrode and the counter electrode becomes a pixel portion. It has a signal electrode composed of a plurality of segment electrodes provided on the upper substrate 5, a wiring electrode connected to the signal electrode, and a terminal electrode 13 provided outside the seal portion 15 for connecting the wiring electrode to an external circuit.

On the lower substrate 7, a counter electrode provided opposite to the signal electrode and a counter electrode are electrically connected to the upper substrate 5.
A conductive seal portion (not shown) is provided on the outer peripheral portion of the seal portion 15 in order to rearrange the connection electrodes 17 provided thereon.

The upper substrate 5 and the lower substrate 7 are bonded to each other with a predetermined gap provided by a sealing portion 15 made of acrylic resin and a spacer (not shown) having a predetermined diameter. The seal portion 15 is octagonal and has an opening 21 (not shown) provided in a part thereof. An octagon is closer to a circle than a quadrangle, so that it is convenient when used in a circular watch. Of course, polygons are also acceptable. The opening (not shown) of the seal portion 15 allows the liquid crystal layer 19
Inject.

The filler 10 is provided in a portion to be deleted when processing the outer shape 42 of the liquid crystal display panel substrate into the outer shape of the final liquid crystal display panel substrate, and has a structure in which the cutting dummy portion 41 is removed. Even in the case of a polygon rather than an octagon, it is effective to provide the filler 10 at a portion to be cut. By providing the filler 10 in the cutting dummy portion 41, the margin of the area of the filler 10 can be increased. to the terminal electrode 13 and the opening 2 by supplying the filler 10 from the corner of the substrate or from the corner to the opening 21 side.
1 and the corner of the octagon is the filler 10
Control the spread of Therefore, the filler 10 can be provided at a target position.

<Sixth Embodiment> A liquid crystal display panel according to a sixth embodiment of the present invention will be described below with reference to the drawings. In the sixth embodiment, the filler 10 is supplied to the terminal electrode 13 in a state of strip-shaped substrates 1 and 2 from the side opposite to the opening 21. FIG. 17 is a plan view showing a structure in which a plurality of liquid crystal display panels are arranged in one row.
The sixth embodiment will be described below with reference to FIG.

A signal electrode (not shown) made of an indium tin oxide (ITO) film, which is a transparent conductive film, is provided on the first substrate 1, which is an original substrate on which a plurality of liquid crystal display panels are arranged. A counter electrode (not shown) made of a transparent conductive film is provided on a second substrate 2 facing the first substrate 1 at a predetermined distance. An overlapping portion between the signal electrode and the counter electrode becomes a pixel portion. A signal electrode formed of a plurality of segment electrodes provided on the first substrate 1, a wiring electrode connected to the signal electrode, and a sealing portion 15 for connecting the wiring electrode to an external circuit.
And a terminal electrode 13 provided outside.

On the second substrate 2, a counter electrode provided to face the signal electrode and a counter electrode are electrically connected to the first electrode.
In order to change the arrangement of the connection electrodes 17 provided on the substrate 1, a conductive seal portion (not shown) is provided on the outer peripheral portion of the seal portion 15.

The first substrate 1 and the second substrate 2 are bonded to each other with a predetermined gap provided by a seal portion 15 made of an ultraviolet curable resin. As shown in FIG.
An opening 21 is provided in a part of the seal portion 15.

Further, in the portion where the terminal electrode 13 is provided between the liquid crystal display panels, the filler 10 is made to permeate from the side opposite to the side where the opening 21 is provided. As the filler 10, cholesteric liquid crystal which contains few impurities and has a high viscosity near normal temperature was used. By keeping the temperature at about 60 ° C. in the strip state and supplying the cholesteric liquid crystal to the portion of the terminal electrode 13 between the liquid crystal display panels, the cholesteric liquid crystal is diffused in the direction of the side of the opening 21 by a capillary phenomenon. By lowering the temperature of the strip-shaped substrates 1 and 2 after a lapse of a predetermined time, the viscosity of the cholesteric liquid crystal rapidly rises and stops at a predetermined position on the terminal electrode 13.

As described above, the cholesteric liquid crystal permeates the unnecessary portion of the liquid crystal layer 19 as the filler 10. Further, by injecting the liquid crystal layer 19 from the opening 21, the liquid crystal layer 19 can be injected into the display region, so that it is possible to prevent the liquid crystal layer 19 from penetrating into unnecessary portions. In the present invention, a dye is included in the cholesteric liquid crystal so that the penetration of the terminal electrode 13 can be easily detected. The cholesteric liquid crystal has an increased viscosity due to temperature control, and has a higher temperature region than a twisted nematic (TN) liquid crystal, a super twisted nematic (STN) liquid crystal, or a mixed liquid crystal layer of a liquid crystal and a transparent solid. And low viscosity, which is convenient for fixing the permeation position.

As described above, the filler 10 is provided on the terminal electrode 13, and after processing into the shape of each liquid crystal display panel, the filler 10 is washed and removed.

Further, on the opposite side (upper side of the paper) of the opening 21, a plurality of liquid crystal display panels are arranged, so that a seal remaining portion 22 is provided.

[0091]

As is clear from the above description, the first substrate on which a plurality of liquid crystal display panels are arranged and the second substrate are bonded to each other with a fixed gap provided by a seal portion. An opening is provided in a part of the seal portion. Each liquid crystal display panel has a signal electrode and a counter electrode, and an intersection of the signal electrode and the counter electrode becomes a pixel portion. The display area includes a plurality of pixel units. Further, a liquid crystal layer is injected into the display region from the opening. When the liquid crystal layer is injected, the liquid crystal layer permeates into unnecessary portions other than the display area. For example, a portion opposite to the display region with respect to the seal portion is a portion where terminal electrodes and the like for connecting to an external circuit are arranged.

In order to prevent the liquid crystal layer from penetrating into the above unnecessary portions, in the present invention, the filler is penetrated around the opening and between the first substrate and the second substrate. . When the filler comes into contact with the seal portion, the filler and the seal portion can prevent the liquid crystal layer from penetrating.

The spread area of the filler can be easily managed by controlling the supply amount of the filler. A method of controlling the supply amount is a method in which a fixed amount of the filler is attached by a dispenser including a container holding the filler, a pipe transferred from the container, and a syringe provided at the end of the pipe.
Alternatively, there is a method in which a screen plate having a hole in a portion where the filler is attached is used, and the filler on the plate is uniformly extruded from the hole with a squeegee.

In order to further control the spread of the filler,
A projection is provided on a part of the sealing material. The projection can prevent the filler from spreading at the edge of the sealing material.

Further, it is necessary to close the opening and prevent the filler from spreading too much in the direction of the side in contact with the side where the opening is provided. Therefore, although the amount of the filler can be controlled, a projection is further provided on the sealing material. This protrusion is on the side (side) where the opening contacts.
Therefore, it is provided in the vicinity of the side (side) in contact with the side (side) in contact with the opening, and in a portion slightly closer to the opening from the corner of the sealing material. Here, since the filler penetrates into the projection side on the side away from the opening, the time for the filler to penetrate into the opening side by the projection can be lengthened, so that the opening is closed by the filler. Can be prevented.

Further, in order to prevent the penetration and diffusion of the filler to the side (side) in contact with the side in contact with the opening,
In addition, a protruding portion is provided in a portion near the side. In the case where each liquid crystal display panel is formed from a first substrate having a plurality of upper substrates and a second substrate having a plurality of lower substrates, an adhesive is used to peel off the first substrate and the second substrate. It is not preferable that the layer is on the side because the substrate is damaged. Therefore, the protrusion provided on the side can prevent the filler from penetrating to the side. In addition, since the filler acts as a breakwater for the liquid crystal layer, it can naturally be prevented from penetrating into the sides.

Further, the spread area of the filler can be controlled by the time after the filler is dropped on a predetermined place.
Therefore, the photocurable resin is very easy to control because the viscosity of the filler can be varied in a short time. Further, among the photocurable resins, the ultraviolet curable resin had good workability. Furthermore, in order to confirm the spread area of the filler near the seal portion, a mixture of a UV-curable resin and a dye such as a dye is used. As a result, the amount of spread of the filler can be measured visually or easily with an optical sensor,
The setting of the time for irradiating ultraviolet rays and the inspection after curing are also very easy.

In particular, when a mixed liquid crystal layer of a liquid crystal and a transparent solid is used for the liquid crystal layer, it is necessary to prevent the liquid crystal layer from penetrating into a portion corresponding to a side of the liquid crystal layer. The reason is that dissolution of the transparent solid or removal by washing is more difficult than liquid crystal. After injecting the liquid crystal layer into the display area from the opening, the transparent solid material polymerizes the monomer by ultraviolet rays. When the transparent solid material penetrates the side, it polymerizes at the side, so the reaction at the interface with the substrate also proceeds. Therefore, the adhesion to the substrate is improved as compared with the liquid crystal. Therefore, the present invention is effective especially when a mixed liquid crystal layer is used as the liquid crystal layer.

It is needless to say that the liquid crystal layer can be prevented from penetrating by making the filler penetrate into portions other than the display region of the first substrate and the second substrate. Therefore, the filler is allowed to penetrate into unnecessary portions other than the display area. As the filler, silicon-based oil or liquid crystal can be used. Also in this case, since the area of the filler can be controlled by increasing the viscosity of the filler after infiltrating the filler, the liquid crystal used for the filler is in a high temperature state, such as a cholesteric liquid crystal. The one that shows a liquid crystal phase is used.

As described above, in order to prevent the liquid crystal layer from penetrating into unnecessary portions of the liquid crystal display panel, the present invention employs a structure having a filler in a permeation passage of the liquid crystal layer into unnecessary portions. The adoption of the LCD panel improves the processability of the external shape of the LCD panel, prevents breakage of the substrate, improves electrical contact with external circuits, and furthermore, the liquid crystal layer adhered to unnecessary parts while using the LCD panel Can also be prevented from losing reliability due to bleeding into the terminal electrode.

In particular, when the present invention is applied to a small liquid crystal display panel for an arm information device or a small information device, the amount of the liquid crystal layer used is reduced, and the liquid crystal display panel having a liquid crystal layer penetrating unnecessary portions is used. Can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state of an original substrate of a liquid crystal display panel having an arrangement of 4 rows and 3 columns in a first embodiment of the present invention.

FIG. 2 is a plan view showing a strip-shaped liquid crystal display panel of 1 row and 3 columns in the first embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a strip-shaped liquid crystal display panel of 1 row and 3 columns in the first embodiment of the present invention.

FIG. 4 is a plan view showing the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 5 is a sectional view showing the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 6 is a plan view illustrating a manufacturing process of the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 7 is a plan view illustrating a manufacturing process of the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 8 is a plan view illustrating a manufacturing process of the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 9 is a plan view illustrating a manufacturing process of the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 10 is a plan view illustrating a manufacturing process of the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 11 is a plan view illustrating a manufacturing process of the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 12 is a plan view illustrating a manufacturing process of the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 13 is a plan view illustrating a liquid crystal display panel according to a second embodiment of the present invention.

FIG. 14 is a plan view illustrating a liquid crystal display panel according to a third embodiment of the present invention.

FIG. 15 is a plan view illustrating a liquid crystal display panel according to a fourth embodiment of the present invention.

FIG. 16 is a plan view showing a liquid crystal display panel according to a fifth embodiment of the present invention.

FIG. 17 is a plan view illustrating a liquid crystal display panel according to a sixth embodiment of the present invention.

[Explanation of symbols]

1: First substrate 2: Second substrate 5: Upper substrate 7: Lower substrate 11: Signal electrode 12: Counter electrode 13: Terminal electrode 14: Wiring electrode 15:
Seal part 16: Conductive seal part 17: Connection electrode
18: projecting portion 19: liquid crystal layer 20: dummy seal portion for auxiliary
21: Opening 22: Seal Remaining 23: Seal 41:
Cutting dummy part 42: Original liquid crystal display panel outer shape 48: Screen plate 49: Screen hole 50: Squeegee 5
1: Injection pin

Claims (10)

[Claims] An opening provided in a part of the seal portion, wherein a signal electrode provided on the upper substrate, a counter electrode provided on the lower substrate, and an upper substrate and a lower substrate are bonded to each other with a fixed gap provided by a seal portion. A liquid crystal layer to be injected into the gap from the part,
In the liquid crystal display panel in which the opening is sealed with a sealing material,
A liquid crystal display panel having a structure in which a filler is penetrated. 2. An opening provided in a part of the seal portion, wherein the signal electrode provided on the upper substrate, the counter electrode provided on the lower substrate, and the upper substrate and the lower substrate are bonded to each other with a fixed gap provided by a seal portion. A liquid crystal layer to be injected into the gap from the part,
In the liquid crystal display panel in which the opening is sealed with a sealing material, the sealing portion has a protrusion in the outer shape direction of the substrate, and a filler penetrates near the protrusion. Liquid crystal display panel having a suitable structure. 3. The liquid crystal display panel according to claim 2, wherein the protrusion has a symmetrical structure with respect to the opening. 4. The liquid crystal display panel according to claim 2, wherein the projection has a plurality of projections. 5. The liquid crystal display according to claim 2, wherein the filler is disposed in the vicinity of the protrusion, and is further positioned opposite to the opening of the protrusion. panel. 6. The liquid crystal display panel according to claim 1, wherein the filler is an ultraviolet curable resin. 7. The liquid crystal display panel according to claim 1, wherein the liquid crystal layer comprises a mixed liquid crystal layer of a liquid crystal and an organic polymer. 8. A step of bonding a first substrate having an upper substrate and a second substrate having a lower substrate with a fixed gap provided by a seal portion having at least one opening;
A step of filling a filler from the outer side of the substrate to the seal portion, a step of injecting a liquid crystal layer from the opening, a step of attaching a sealing material to the opening, and a step of curing the sealing material. A method for manufacturing a liquid crystal display panel, comprising: 9. A liquid crystal display panel comprising: a first substrate having an upper substrate for a plurality of liquid crystal display panels; and a second substrate having a lower substrate for a plurality of liquid crystal display panels. A step of providing a fixed gap with the seal portion having the same, a step of cutting by a cutting line in contact with the opening, and a step of filling a predetermined position from the opening with the filler from the cutting line to the seal portion. A step of injecting a liquid crystal layer from the opening, a step of attaching a sealing material to the opening, a step of curing the sealing material, and a step of cutting and separating the liquid crystal display panels. A method for manufacturing a liquid crystal display panel. 10. A liquid crystal display panel comprising: a first substrate having an upper substrate for a plurality of liquid crystal display panels; and a second substrate having a lower substrate for a plurality of liquid crystal display panels. A step of providing a fixed gap with the seal portion having the same, a step of cutting by a cutting line in contact with the opening, and a step of filling a predetermined position from the opening with the filler from the cutting line to the seal portion. A step of injecting a liquid crystal layer containing liquid crystal and an organic monomer from the opening; a step of attaching a sealing material to the opening; a step of converting the organic monomer of the liquid crystal layer into an organic polymer; A method for manufacturing a liquid crystal display panel, comprising: a step of curing a porous material; and a step of cutting and separating each of the liquid crystal display panels.