JP2001100167A - Method for manufacturing liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a liquid crystal display device permitting shortening a time for inspecting transparent electrodes and injecting a liquid crystal into liquid crystal cells, and moreover, permitting reducing trouble required for them. SOLUTION: Terminal parts of each liquid crystal cell 3 are arranged in a line along one side of a rectangular cell 4 lines with plural liquid cells 3, and also opening parts 13a of sealing parts 13 of each liquid crystal cell 3 are arranged in a line along the other side. Since the arrangement permits inspection of transparent electrodes and injection of a liquid crystal of plural liquid crystal cells 3 by one operation, respectively, it is possible to shorten a required time and reduce trouble, compared with the case in which these processing are performed on individual liquid crystal cells.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for manufacturing a liquid crystal display device.

[0002]

2. Description of the Related Art FIG. 9A is a plan view schematically showing the structure of a general liquid crystal panel 5, and FIG.
It is DD 'line sectional drawing in (a). As shown in these figures, the liquid crystal panel 5 includes a frame-shaped seal portion 51 having an opening in a part, a first substrate 52 and a second substrate 53 arranged to face each other with the seal portion 51 interposed therebetween. It is roughly constituted by a liquid crystal 54 sealed in a region defined by a gap formed by both substrates and surrounded by a seal portion 51. Transparent electrodes 55 and 56 for applying an electric field to the liquid crystal 54 are formed in stripes on the inner surfaces (the liquid crystal 54 side) of the first substrate 52 and the second substrate 53, respectively.

Here, the second substrate 53 is larger than the first substrate 52, and has a configuration in which a part of the second substrate 53 projects from the first substrate 52 in a state where the respective substrates are laminated. In the overhang portion 57, input terminals 58 extending from each of the transparent electrodes 55 and 56 formed on the surface of each substrate are formed. Each of these input terminals 58 is connected to an output terminal of a liquid crystal driving IC (not shown). This liquid crystal driving IC is a device for applying a voltage corresponding to an image signal to the transparent electrode.

In general, when manufacturing such a liquid crystal panel 5, first, a liquid crystal cell group in which a plurality of liquid crystal cells are joined is prepared. FIG. 10A is a diagram illustrating the configuration of the liquid crystal cell group, and FIG.
It is EE 'sectional view taken on the line 0 (a). As exemplified in these drawings, the liquid crystal cell group is formed by dividing a pair of substrates into a plurality of regions, and forming the above-described transparent electrode and the sealing portion for each region.

The liquid crystal cell group is arranged such that a plurality of liquid crystal cells 6 are arranged in a line (a set of a plurality of liquid crystal cells 6 in such a state is referred to as a "strip cell"). Cut along the line ZZ 'in a). As a result, the sealing portion 5 of each liquid crystal cell 6 forming the strip cell is formed.
The openings formed in 1 are arranged in a line along one side of the strip cell.

Subsequently, as shown in FIG. 11, the opening of each liquid crystal cell 6 constituting the strip cell is immersed in a liquid crystal 54 filled in a container, and the liquid crystal 54 is injected into each liquid crystal cell 6.
Here, since the openings of each liquid crystal cell 6 are arranged in a line along one side of the strip cell, there is an advantage that the liquid crystal can be injected into each of the plurality of liquid crystal cells collectively.
Thereafter, the individual liquid crystal cells 6 are separated from the strip cells, and a liquid crystal driving IC and the like are mounted to complete the liquid crystal panel 5 described above.

[0007]

Incidentally, the plurality of transparent electrodes 55 and 56 formed on the surfaces of both substrates of the liquid crystal panel 5 are formed to have extremely fine dimensions, and thus come into contact with each other and short-circuit. Failure may occur. Therefore, in manufacturing the liquid crystal panel 5, it was necessary to inspect whether a short circuit occurred between the transparent electrodes. Generally, such an inspection is performed by sequentially bringing a pair of inspection probes into contact with each of the input terminals extending from each of the plurality of transparent electrodes 55 and 56.

However, in the above-described manufacturing method, as shown in FIG. 10A, since the input terminals are formed along the boundaries between the liquid crystal cells 6 constituting the strip cells, the strip cells are formed by individual liquid crystals. After the division into the cells 6, the above-described inspection needs to be performed on the individual liquid crystal cells 6. Therefore, complicated work such as attaching and detaching the individual liquid crystal cells 6 to and from the inspection apparatus is required, and the time required for the inspection is lengthened accordingly.

The present invention has been made in view of the circumstances described above, and it is possible to reduce the time required for inspecting a transparent electrode and injecting liquid crystal into a liquid crystal cell, and to reduce the time and effort required for these. It is an object of the present invention to provide a method for manufacturing a device.

[0010]

According to the present invention, there is provided a liquid crystal display device provided with a first substrate on which a plurality of first electrodes are formed, a plurality of second electrodes, and a plurality of the second electrodes. In a method for manufacturing a liquid crystal display device in which a second substrate on which input terminals are formed and a seal portion are interposed and joined, a first region serving as the first substrate and a plurality of second regions serving as the second substrate And the first motherboard and the second motherboard so that
Forming the plurality of second electrodes and the outer input terminals in the second region, and forming a plurality of the seals for enclosing liquid crystal on the first or second mother substrate. Forming a portion in the first region and the second region, the first region in the first mother substrate, the second region in the second mother substrate, and the second region in the second mother substrate. Bonding the first and second mother substrates so that the first region and the second region on the first mother substrate correspond to each other, the first and second
Cutting the mother board along the rows, and applying a probe to the input terminal section to perform an electrode inspection, and each sealing section has an opening for injecting liquid crystal. Is provided, and the input terminal is formed on the opposite side to the opening with the seal portion interposed therebetween.

According to the method of manufacturing a liquid crystal display device of the present invention, the input terminals of the liquid crystal cells to be inspected in the step of inspecting the electrodes are arranged in a line, so that a plurality of liquid crystal cells can be tested. The input terminals can be inspected collectively. Therefore, there is an advantage that the time required for the inspection can be reduced and the labor can be reduced as compared with the case where the same inspection is performed for each liquid crystal cell. Further, since the opening of each liquid crystal cell is formed along one side of the strip cell, liquid crystal can be injected into a plurality of liquid crystal cells at a time. Therefore, there is an advantage that the required time can be shortened and labor can be reduced as compared with the case where liquid crystal is injected into each liquid crystal cell.

Further, the opening of the seal portion formed in the first region and the opening of the seal portion formed in the second region adjacent thereto are formed so as to be shifted from each other. It is characterized by that.

[0013] In this case, the openings of the seals formed so that the openings face each other are joined, and a closed space is not formed by the seals. That is, since the space surrounded by the first substrate and the second substrate and the seal portion does not become a sealed space, there is a problem that the seal portion is damaged by the thermal expansion of the air in the space. Can be avoided.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. In the following, a description will be given of an example in which a passive matrix type liquid crystal panel is manufactured using the manufacturing method according to the present invention. Such an embodiment shows one aspect of the present invention, and does not limit the present invention, and can be arbitrarily changed within the scope of the present invention.

A: Configuration of the Embodiment FIG. 1A is a plan view schematically showing the configuration of a liquid crystal panel 1 manufactured by the manufacturing method according to the present invention, and FIG. It is AA 'line sectional drawing in (a). In FIG. 1 and each of the following drawings, the scale of each layer and each member is made different in order to make each layer and each member have a size recognizable in the drawing.

As shown in FIGS. 1A and 1B, the liquid crystal panel 1 has a first substrate 11 and a second substrate 12.
And a substantially rectangular frame-shaped seal portion 1 interposed between the two substrates.
3 and a liquid crystal 14 sealed in a space between the first substrate 11 and the second substrate 12 and surrounded by the seal portion 13.

The first substrate 11 and the second substrate 12 are plate members made of, for example, quartz, glass or plastic. First substrate 11 and second substrate 12
A plurality of transparent electrodes 15 and 16 are formed in a stripe shape on the inner surface (on the side of the liquid crystal 14). The transparent electrodes 15 and 16 are made of, for example, ITO (Indium Ti
n Oxide). Each transparent electrode 15 and each transparent electrode 16 are formed so as to be orthogonal to each other,
Pixels are formed by the portions where the transparent electrodes intersect and the liquid crystal 14 sandwiched between the portions.

Here, the second substrate 12 is larger than the first substrate 11. Therefore, as shown in FIGS. 1A and 1B, in a state where each substrate is stuck, the second substrate 12
Are projected from a part of the outer edge of the first substrate 11. A plurality of input terminals 18, 18,... Are formed in the elongated projection 17. Each of these input terminals 18 is extended from each of the plurality of transparent electrodes 15 and 16 and, as shown in FIG. Formed. Here, the transparent electrode 15 formed inside the first substrate 11 is connected to the input terminal 18 formed on the second substrate 12 via conductive particles (conductive filler) mixed in the seal portion 13. Conducted. In the following, the input terminals 18, 18,... Formed on the overhang portion 17 are collectively referred to as a "terminal portion 19".

Further, the overhanging portion 17 is also provided with a liquid crystal driving IC (not shown) for applying a voltage corresponding to an image signal to the transparent electrodes 15 and 16. Specifically, a plurality of output terminals of the liquid crystal driving IC are ACF
(Anisotropic Conductive Film) are connected to the input terminals 18, 18,....

The surface of the first substrate 11 on which the transparent electrode 15 is formed and the surface of the second substrate 12 on which the transparent electrode 16 is formed are covered with an alignment film (not shown) such as polyimide. This alignment film is subjected to a uniaxial alignment process, for example, a rubbing process. The liquid crystal 14 is aligned according to these alignment films when no electric field is applied from the transparent electrodes 15 and 16. On the other hand, outside the first substrate 11 and the second substrate 12 (the liquid crystal 14)
A polarizing plate (not shown) is adhered to the surface (opposite side from the above). In these polarizing plates, the polarization axis is set according to the rubbing direction of the alignment film formed on the inner surface of each substrate.

The sealing portion 13 is made of a thermosetting epoxy resin or the like.
A spacer material for keeping the gap between the first substrate 11 and the second substrate 12 at a constant thickness is mixed. Seal part 13
Are partially used in the manufacturing process of the liquid crystal panel 1.
4 has an opening 13a for injection. After the liquid crystal is injected into the liquid crystal cell, the opening 13a is closed by the adhesive 13b. The liquid crystal cell includes a first substrate 11 and a second substrate 12 and a seal 13
And a portion formed by the transparent electrodes 15 and 16 and the alignment film. That is, the liquid crystal 14 is placed in the liquid crystal cell.
Are sealed and a polarizing plate or the like is stuck to the liquid crystal panel 1.

B: Manufacturing Method of Liquid Crystal Panel 1 Next, the manufacturing process of the liquid crystal panel 1 will be described with reference to the flowchart shown in FIG. 2 and each of FIGS. The manufacturing process in the present embodiment includes five processes, namely, process a. Liquid crystal cell group forming step (steps S1 to S6), step b. Strip cell formation process (Step S
7), step c. Inspection step (step S8), step d. Liquid crystal enclosing step (steps S9 and S10) and step e. It can be divided into a dividing step (step S11). Hereinafter, each of these steps will be described.

Step a. Liquid Crystal Cell Group Creation Step First, a liquid crystal cell group in which a plurality of liquid crystal cells are arranged in a matrix is created (steps S1 to S6). FIG. 3 (a)
FIG. 3 is a plan view showing the configuration of the liquid crystal cell group 2, and FIG.
FIG. 3B is a sectional view taken along line BB ′ in FIG. As shown in the figure, in the present embodiment, four pieces each in the X-axis direction and the Y-axis direction in the figure,
Liquid crystal cell group 2 in a state where a total of 16 liquid crystal cells 3 are joined
Shall be created. Since each of the liquid crystal cells 3 has the above-mentioned overhang portion 17, the liquid crystal cells 3 adjacent to each other in the X-axis direction are formed so that the front and back are opposite to each other.

Here, a specific manufacturing process of the liquid crystal cell group 2 will be described with reference to FIGS. 4 (a) and 4 (b).

First, as shown in FIG.
0 to the first region 1 to be the first substrate 11 of the liquid crystal panel 1
1 ′ and a second region 12 ′ that becomes the second substrate 12,
The first region 11 'is provided with the transparent electrode 15, the second region 12' is provided with the transparent electrode 16 and the input terminal 18 (terminal portion 19),
Each is formed (step S1). Specifically, for example, after forming a thin film such as ITO on one surface of the mother substrate 20 by sputtering or the like, these portions are formed by etching the thin film.

Here, as shown in FIG. 4A, the mother substrate 20 is formed such that the first regions 11 'and the second regions 12' are alternately arranged in the X-axis direction in the figure. On the other hand, Y
In the axial direction, the first region 11 'or the second region 12'
Are formed in a line. In the present embodiment, as shown by the hatched portion in FIG.
The terminal portions 19 formed in each of the second regions 12 ′ arranged in the Y-axis direction are formed so as to be continuous in a line in the Y-axis direction.

Next, the surface of the mother substrate 20 on which the transparent electrodes 15 and 16 are formed is covered with a thin film of polyimide or the like, and a uniaxial alignment process, for example, a rubbing process is performed to form an alignment film (step S2).

Subsequently, as shown in FIG. 4B, the sealing material containing the conductive particles and the spacer material is mixed with the first region 11 ′ and the second region 1 on which the transparent electrodes and the like are formed.
The coating is applied onto the surface 2 ′ to form a frame-shaped seal portion 13 partially having an opening 13a (Step S3).
A technique such as screen printing can be used for applying the sealing material.

Here, the openings 13a of the seal portion 13 arranged in the Y-axis direction are formed so as to face the same direction of the X-axis. For example, in the example shown in FIG. 4B, the leftmost row of the seal portions 13 in the figure has openings 13a oriented in the positive direction of the X axis, and the rightmost row of the seal portions. Reference numerals 13 each have an opening 13a oriented in the negative direction of the X axis.

As described above, since the liquid crystal cells 3 adjacent to each other in the X-axis direction are opposite to each other, for example, each liquid crystal cell constituting the leftmost column in FIG. 3 and the openings 13a of the respective liquid crystal cells 3 forming the second column from the left are formed so as to face each other. In the present embodiment, the openings facing each other in this manner are formed at different positions in the Y-axis direction.

On the other hand, the transparent substrates 15 and 16, the input terminals 18 and the transparent substrates 15 and 16 are also formed on the surface of the mother substrate 21 opposed to the mother substrate 20 by the same steps as described with reference to FIG. An alignment film is formed (Steps S4 and S5). That is, the motherboard 21 is connected to the first
It is divided into a first region 11 ′ serving as the substrate 11 and a second region 12 ′ serving as the second substrate 12. The transparent electrode 15 is provided in the first region 11 ′, and the transparent electrode 16 is provided in the second region 12 ′. The terminal portions 19 are respectively formed. However, when the motherboard 20 and the motherboard 21 are arranged to face each other, the first
The region 11 ′ is opposed to the second region 12 ′ on the motherboard 21, and the second region 12 ′ on the motherboard 20 is opposed to the first region 11 ′ on the motherboard 21. That is, the region of the mother substrate 20 where the transparent electrode 15 is formed is opposed to the region of the mother substrate 21 where the transparent electrode 16 is formed,
The region of the mother substrate 20 where the transparent electrodes 16 are formed is opposed to the region of the mother substrate 21 where the transparent electrodes 15 are formed. Also, with respect to the mother board 21, the terminal portions 19 formed in each of the second regions 12 ′ in a row are
It is formed so as to be continuous in a line in the column direction. Note that the seal portion 13 is not formed on the mother board 21.

Next, the mother substrates 20 and 21 having the transparent electrodes and the like formed on the surfaces by the above steps are arranged so that the sealing portion 13 is interposed between the two substrates, and are sealed by thermocompression bonding. The part 13 is cured (Step S
6). Thus, the liquid crystal cell group 2 shown in FIGS. 3A and 3B is formed.

Here, as described above, the openings 13a formed so as to face each other in the X-axis direction are respectively Y
Since they are formed at different positions in the axial direction, the following effects can be obtained. That is, if the openings 13a and 13a 'facing each other in the X-axis direction are formed at the same position in the Y-axis direction as shown in FIG. 5, the opening 13a of the seal portion 13 and the seal portion 13'
And the sealing portions 13 and 1 are joined together.
A closed area (shaded area in the figure) is formed by 3 '. Therefore, a sealed space is formed by the opposing mother substrates 20 and 21 and the seal portions 13 and 13 '. If the thermocompression bonding is performed in such a state, the air in the sealed space expands, and the seal members 13 and 13 'may be damaged.
On the other hand, if the position of the opening 13a is shifted as in the present embodiment, the above-described closed space is not formed, and thus there is an advantage that such a problem does not occur. is there. Therefore, the openings formed so as to face each other in the X-axis direction need only be displaced in the Y-axis direction so as not to cause the above-described inconvenience, that is, to such an extent that a region closed by the adjacent seal portion is not formed.

Step b. Strip Cell Forming Step The liquid crystal cell group 2 thus formed is divided along a line XX ′ in FIGS. 3A and 3B, and a strip in which four liquid crystal cells 3 are connected in the Y-axis direction. A cell 4 is created (step S7). Specifically, a scribe is made along a line XX ′ in FIGS. 3A and 3B using a diamond cutter or the like, and then a break is performed by applying mechanical pressure. Each strip cell 4 obtained as a result has the terminal portions 19 of each liquid crystal cell 3 connected along one long side (side parallel to the arrangement direction of the liquid crystal cells 3) and a seal along the other long side. An opening 13a of the portion 13 is formed (see FIG. 6).

Step c. Inspection Step Next, it is inspected whether or not each of the transparent electrodes 15 and 16 formed in the step a is short-circuited (Step S8). In the present embodiment, the above-described inspection is performed using an inspection apparatus provided with the same number of inspection probes as the number of input terminals of the strip cell. Each inspection probe 30, 30,
Are connected to the inspection circuit 31 and have needle-like tips that come into contact with the input terminals 18 to be inspected, as shown in FIG. The inspection circuit 31 includes a well-known circuit that can detect whether a short circuit has occurred between the inspection probes 30, 30,..., That is, whether a current of a predetermined amount or more is flowing. It is configured. Then, as shown in FIG.
0... Contact each input terminal 18,
Check for a short circuit. As described above, in the present embodiment, the terminal portions 19 (input terminals 18) to be inspected are arranged in a line across the plurality of liquid crystal cells 3. Therefore, if an inspection device having the inspection probes 30 corresponding to the number of the input terminals 18 is used like the inspection device described above, the short-circuit of the input terminals 18 of the four liquid crystal cells 3 can be inspected collectively. it can. That is, unlike the inspection method in the above-described conventional technique, it is not necessary to perform an inspection on each liquid crystal panel, so that the time required for the inspection can be greatly reduced and the labor can be reduced.

Step d. Liquid Crystal Filling Step Subsequently, liquid crystal is filled in each liquid crystal cell 3 constituting the strip cell 4 (Step S9). Specifically, after the container 32 filled with the liquid crystal 14 and the strip cell 4 are arranged in the chamber of the liquid crystal injection device, the inside of the chamber is evacuated. Next, as shown in FIG. 7, the openings 13 a arranged in a line along one side of the strip cell 4 are immersed in the liquid crystal 14 filled in the container 32. When the pressure in the chamber is returned to the atmospheric pressure in such a state, a pressure difference is generated between the liquid crystal cell 3 and the chamber. Therefore, the liquid crystal 14 is injected into each liquid crystal cell 3. After the liquid crystal 14 is injected into each liquid crystal cell 3, the openings 13a are closed with an adhesive or the like (step S10). According to the present embodiment, since the openings 13a serving as the injection ports of the liquid crystal 14 are arranged in a line, there is an advantage that the liquid crystal 14 can be injected into a plurality of liquid crystal cells 3 at a time. Note that the above step c and this step d
The order may be reversed. Step e. Next, the strip cells 4 are divided into individual liquid crystal cells 3 (step S11). For this division, a method in which the strip cells 4 are divided in the step b can be used. continue,
A polarizing plate and a liquid crystal driving I
By attaching C or the like, the liquid crystal panel 1 shown in FIG.
Can be manufactured.

As described above, according to the present embodiment, the terminal portions of the liquid crystal cells constituting the strip cells are arranged in a line, so that the terminal portions of a plurality of liquid crystal cells are inspected collectively. be able to. Further, since the opening of each liquid crystal cell is formed along one side of the strip cell, liquid crystal can be injected into a plurality of liquid crystal cells at a time. Therefore,
Compared to the case where the above-described inspection and liquid crystal sealing are performed for each liquid crystal cell, the required time can be reduced and the labor can be reduced.

Further, since the openings facing each other in the X-axis direction are formed at different positions in the Y-axis direction, a space sealed by the adjacent seal portion is not formed. Therefore, it is possible to avoid a problem that the air in the space expands due to the thermocompression bonding and the seal portion is damaged.

C: Modifications Although one embodiment of the present invention has been described above, the above embodiment is merely an example, and various modifications may be made to the above embodiment without departing from the spirit of the present invention. be able to. For example, the following modifications can be considered.

<Modification 1> In the above embodiment, the case where the present invention is applied to the manufacture of a passive matrix type liquid crystal panel has been described. However, the present invention is not limited to this. For example, a TFT (thin film transistor) or a TFD (thin film diode) The present invention can also be used when manufacturing an active matrix type liquid crystal panel provided with a switching element such as (1) and (2).

<Modification 2> In step c of the above embodiment, the inspection is performed using an inspection apparatus having the same number of inspection probes 30 as the number of input terminals 18 of the strip cell 4. However, the present invention is not limited thereto, and the inspection may be performed using an inspection device having a smaller number of the inspection probes 30 or a pair of the inspection probes 30 than the number of the input terminals 18. For example, a procedure for performing an inspection using an inspection apparatus provided with a pair of inspection probes 30 is as follows. First, after fixing the strip cells 4 to the stage of the inspection device, whether each inspection probe 30 is in contact with two adjacent input terminals 18 among the input terminals 18 formed in each liquid crystal cell 3 to short-circuit. Check for no. Thereafter, the same inspection is sequentially repeated by sequentially moving the pair of inspection probes 30 and making contact with the other two input terminals 18 each time. Also in this case, unlike the above-described conventional inspection method, there is no need to perform an operation of attaching or detaching the individual liquid crystal cells 3 to or from the stage of the inspection device, so that the time required for the inspection can be reduced. , Can reduce labor.

<Modification 3> In the above embodiment, the liquid crystal cell group 2 having the configuration shown in FIGS. 3A and 3B is formed, but the configuration of the liquid crystal cell group 2 is not limited to this. Not something. In short, the terminal portion 1 of each liquid crystal cell 3 extends along one side of each strip cell 4 obtained by dividing the liquid crystal cell group 2.
9 may be arranged in a line, and the openings 13a of the liquid crystal cells 3 may be arranged along the other side.
For example, in the above embodiment, as shown in FIGS. 3A and 3B, the liquid crystal cells 3 adjacent to each other in the X-axis direction are configured to be opposite to each other, but this is not the case. 8 (a) and 8 (b). That is, as shown in these figures, of the liquid crystal cells 3 constituting the liquid crystal cell group 2, the front and back of the liquid crystal cell 3 forming the leftmost column and the second column from the left in the drawing are made to coincide with each other, The liquid crystal cells 3 in the third and fourth columns from the left may be configured so that the front and back are reversed. Also in this case, a strip cell 4 similar to the above embodiment can be created.

Also, in the above embodiment, one at a time
The description has been made taking the case of manufacturing six liquid crystal cells as an example,
Needless to say, the number of liquid crystal cells manufactured at one time is not limited to this.

[0044]

As described above, according to the present invention,
Since the terminals of the liquid crystal cells to be inspected in the inspection step are arranged in a line, the terminals of a plurality of liquid crystal cells can be inspected collectively. Also, since the opening of each liquid crystal cell is formed along one side of the strip cell,
Liquid crystal can be injected into a plurality of liquid crystal cells at once. Therefore, the required time can be reduced and labor can be reduced as compared with the case where inspection and liquid crystal injection are performed for each liquid crystal cell.

[Brief description of the drawings]

FIG. 1A is a plan view illustrating a configuration of a liquid crystal panel manufactured by a manufacturing method according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line AA ′ in FIG. It is.

FIG. 2 is a flowchart showing a manufacturing process of the liquid crystal panel in the embodiment.

FIG. 3A is a plan view showing a configuration of a liquid crystal cell group in the same embodiment, and FIG.
FIG. 4 is a sectional view taken along line -B ′.

FIG. 4 is a plan view for explaining a manufacturing process of the liquid crystal cell group in the embodiment.

FIG. 5 is an enlarged plan view showing a liquid crystal cell group in the same embodiment.

FIG. 6 is a view for explaining an inspection step in the embodiment.

FIG. 7 is a view for explaining a liquid crystal injection step in the same embodiment.

FIG. 8A is a plan view showing a configuration of a liquid crystal cell group according to a modification of the present invention, and FIG.
FIG. 4 is a sectional view taken along line -C ′.

9A is a plan view illustrating a configuration of a liquid crystal panel manufactured by a conventional manufacturing method, and FIG. 9B is a cross-sectional view taken along line DD ′ in FIG. 9A.

FIG. 10 is a view for explaining a conventional liquid crystal panel manufacturing process.

FIG. 11 is a view for explaining a manufacturing process of a conventional liquid crystal panel.

[Explanation of symbols]

 5 Liquid crystal panel 2 Liquid crystal cell group 6 Liquid crystal cell 4 Strip cell 52 First substrate 11 'First region 53 Second substrate 12' Second region 51 Seal portion 13a Opening portion 54 Liquid crystal 16, 55, 56 Transparent electrode 57 Overhang portion 18 Input terminal 19 Terminal portion 21 Mother board 30 Inspection probe 31 Inspection Circuit 32: Container

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Sayuri Furihata 3-3-5 Yamato, Suwa-shi, Nagano Seiko Epson Corporation F-term (reference) 2H088 FA10 FA11 FA27 FA28 HA02 MA20 2H089 LA22 NA55 QA12 TA03 2H092 GA05 GA44 HA04 MA57 NA27 PA04 5G435 AA17 BB12 CC09 EE12 EE41 HH12 KK05 KK10

Claims (2)

[Claims] 1. A first substrate on which a plurality of first electrodes are formed, and a second substrate on which a plurality of second electrodes and input terminals provided corresponding to the respective second electrodes are formed. In a method for manufacturing a liquid crystal display device which is joined by interposing a seal portion, a first region serving as the first substrate and a plurality of second regions serving as the second substrate are arranged in a row so as to form a line. Forming a plurality of second electrodes and outer input terminals in the second region by partitioning a mother substrate and the second mother substrate; and filling liquid crystal on the first or second mother substrate. Forming a plurality of the seal portions in the first region and the second region for the first region, the first region in the first mother substrate, the second region in the second mother substrate, and the second region. 2 of the first mother substrate and the second region of the first mother substrate. Bonding the first and second mother substrates so that regions correspond to each other, cutting the first and second mother substrates along the columns, and Applying a probe to perform an electrode inspection, wherein each of the seal portions is provided with an opening for injecting a liquid crystal, and the input terminal is located between the seal portion and the opening. A liquid crystal display device formed on the opposite side. 2. The method for manufacturing a liquid crystal display device according to claim 1, wherein said opening of said seal portion formed in said first region and said opening formed in said second region adjacent thereto are formed. A method for manufacturing a liquid crystal display device, wherein the opening is formed to be shifted from the opening of the seal portion.