JP2000029042A - Manufacture of liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively prevent deterioration of image display quality in the vicinity of a sealant pattern 3 and to suppress a burden on a manufacturing process and the raising of the cost in a method for manufacturing a liquid crystal display. SOLUTION: In this manufacturing method, in order to prevent the generation of strain in assembling a cell 101 by sticking an array substrate 200 and a counter substrate 300 together, a row of columnar spacers is provided in a peripheral region 5, to be removed by scribing, on the counter substrate or the array substrate. In this case the rows of columnar spacers are located for keeping a specified and suitable distance from the sealant pattern 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for manufacturing a liquid crystal display device in which a liquid crystal material is held between a pair of substrates. In particular, the present invention relates to an active matrix liquid crystal display device capable of displaying a high-definition image.

[0002]

2. Description of the Related Art In recent years, liquid crystal display devices have been used in various fields as display devices such as personal computers, word processors or TVs, and as projection display devices, taking advantage of the features of thinness, light weight, and low power consumption. ing.

Among them, an active matrix display device in which a switching element is electrically connected to each pixel electrode is capable of achieving a good display image without crosstalk between adjacent pixels. Have been done.

[0004] The structure of the active matrix type liquid crystal display device of the light transmission type will be briefly described below as an example. Active matrix type liquid crystal display devices
A liquid crystal material is held between an array substrate and a counter substrate via an alignment film. The four circumferences of the liquid crystal material are sealed by a seal material.

In an array substrate, a plurality of signal lines and a plurality of scanning lines are arranged in a matrix on a glass substrate, and thin film transistors (hereinafter abbreviated as TFTs) arranged as switching elements near each intersection. ) Through
A pixel electrode made of ITO (Indium Tin Oxide) is connected to each signal line.

On the opposite substrate, a matrix light-shielding film for shielding light around the TFT and the pixel electrode is arranged on a glass substrate, and an opposite electrode made of ITO is arranged. Further, in order to perform color display, a color filter layer that assigns red (R), blue (B), and green (G) colors to each pixel is laminated.

[0007] The display panel of such a liquid crystal display device includes:
It is manufactured by the following steps (1) to (6).

(1) An array substrate and a counter substrate are manufactured by a predetermined film forming and laminating process.

(2) Spray spherical spacers on the array substrate or the counter substrate.

(3) After applying a sealing material to the array substrate or the opposing substrate in a substantially rectangular frame shape, both substrates are bonded together.

(4) The sealing material is cured while compressing the two substrates bonded together to assemble a cell-like structure (hereinafter referred to as a cell) for holding the liquid crystal material.

(5) With respect to the above-mentioned cell, an extra peripheral area on four sides of the final outer shape of the display panel is cut out and removed by scribing (operation such as notching by glass cutting).

(6) After the liquid crystal material is injected, the injection hole is sealed.

However, the above-mentioned spherical spacer partially aggregates, and in extreme cases, forms a bright spot defect on the display surface of the liquid crystal display device. In addition, if a region where a spherical spacer hardly exists due to uneven distribution density occurs, the thickness of the liquid crystal layer in this region becomes smaller than in other regions, so that the contrast ratio on the display screen becomes non-uniform and the display image becomes Is caused. Further, since the spherical spacers are also distributed in the display area in the pixel, light leakage occurs due to the spherical spacers themselves, and also light leakage due to poor alignment of liquid crystal molecules around the spherical spacers. These light leaks lower the contrast ratio.

Therefore, for example, in JP-A-9-7309 or JP-A-9-73088, columnar spacer projections should be provided when manufacturing an array substrate or a counter substrate instead of dispersing spherical spacers. It is shown.

[0016]

However, even when such columnar spacer projections are provided, the distance between the substrates (cell gap) at the peripheral portion of the image display area, which is close to the seal material pattern, is reduced. In some cases, display quality was reduced due to unevenness.

The cause of such a deterioration in display quality will be described below with reference to FIG.

As schematically shown in the longitudinal sectional view of FIG. 5, a columnar spacer projection 1350 is provided in a peripheral area 1300 outside the seal material pattern 1003 where the scribe is removed.
Is not provided. Therefore, when the array substrate 1200 and the opposing substrate 1300 are pressed against each other and cured, they are compressed more than the inside of the sealing material pattern 1003 (the inside of the cell). That is, the distance (cell gap) between the substrates is different between the outside and the inside sandwiching the sealing material pattern 1003. Here, the force for compressing between the substrates is not only the external force for bonding, but also
It is also caused by curing shrinkage of a sealing material made of a thermosetting resin.

Therefore, at the seal material pattern 1003, as shown in FIG. 5, the substrates are narrowed outward from each other when viewed in a longitudinal section. Because of this, the substrates spread from each other inward from the sealing material pattern 1003. Therefore, in the image display area 1004 adjacent to the sealing material pattern 1003, the cell gap is different from that of the other areas. The difference causes the image display quality to deteriorate.

Particularly, in the display panel of the liquid crystal display device, the demand for reducing the image non-display area at the peripheral portion (narrower frame) and the demand for reducing the weight of the product have been increasing in recent years. The distance between the sealing material pattern 1003 and the image display area 1004 is set smaller, and a glass substrate or a resin substrate having a thickness of 0.7 mm or less is used as a transparent insulating substrate. For this reason, the above-described problem is likely to occur.

The present invention has been made in view of the above problems, and in a liquid crystal display device, the distance between substrates can be kept uniform, so that image display quality can be maintained even in a region adjacent to a sealing material pattern. To keep things high.

[0022]

According to a first aspect of the present invention, there is provided a method of manufacturing a liquid crystal display device, wherein a first substrate and a second substrate are separated by a substantially rectangular sealing material pattern with a gap for holding a liquid crystal layer. A method of manufacturing a liquid crystal display device having an image display area surrounded by the sealing material pattern, the method including a step of removing peripheral areas of the first and second substrates after bonding the first and second substrates together. Alternatively, at least one of the second substrates is formed integrally with spacer projections for defining the gap, and the spacer projections are arranged in the image display area and the peripheral area, respectively, and the opposing ends of the seal material pattern are arranged. In at least one of the pairs formed by the sides, the spacer projections are arranged at substantially equal distances from each of the opposing sides toward the peripheral region. To.

According to the above configuration, it is possible to effectively prevent the image display quality from deteriorating due to distortion of the substrate in the vicinity of the seal material pattern, and furthermore, it does not cause an increase in the manufacturing process burden and cost. .

According to a fourth aspect of the present invention, in the peripheral region of the first and second substrates, a second seal material pattern is arranged, and a first end of the seal material pattern and the second seal material are disposed. A1 is the distance from the sealing material pattern, and A is the distance between the second end of the sealing material pattern and the second sealing material pattern.
2. The distance between the third end of the sealing material pattern and the second sealing material pattern is B1, and the distance between the fourth end of the sealing material pattern and the second sealing material pattern is B1.
When 2, it is characterized in that A1 and A2 or B1 and B2 are formed substantially equal to each other.

With this configuration, it is possible to more effectively prevent the image display quality from deteriorating due to distortion of the substrate in the vicinity of the seal material pattern.

According to a sixth aspect of the present invention, the first and second substrates are multi-panel substrates for manufacturing by cutting out a plurality of display panels, and a display panel area corresponding to a product outer shape of the display panel is provided. In one corridor-like region belonging to the peripheral region, which is included between the two display panel regions and includes a plurality, the spacer protrusions are arranged as common spacer protrusions corresponding to the two display panel regions. It is characterized by the following.

With such a configuration, even when a cell is assembled using a multi-panel substrate, it is possible to effectively prevent image display quality from deteriorating due to distortion of the substrate in the vicinity of the sealing material pattern. There is no loss in improving the utilization efficiency of the multi-plane substrate.

[0028] The method of manufacturing a liquid crystal display device according to claim 11 is as follows.
After the first substrate and the second substrate are bonded to each other via a substantially rectangular sealing material pattern with a gap for holding a liquid crystal layer, a step of removing peripheral regions of the first and second substrates is included. A method of manufacturing a liquid crystal display device having an image display area surrounded by the seal material pattern, wherein the spacer protrusions are arranged at least in each of the image display area and the peripheral area, and the first and second spacer projections are arranged. The substrate is a multi-panel substrate for manufacturing by cutting out the display panel, and includes a plurality of display panel regions corresponding to a product outer shape of the display panel, and at least two of the display panel regions are provided around the periphery. Where the two display panel areas are provided directly in contact with each other without interposing the area, the spacer protrusions are provided by the two display panel areas. As a common spacer projection corresponding to the panel region, it is arranged on one of the display panel regions, that is, inside the outer shape of the product, and outside the seal material pattern, and the two display panel regions have a corridor shape of the peripheral region. At positions adjacent to each other via a region, the spacer protrusions are arranged in the corridor-like region as common spacer protrusions corresponding to the two display panel regions,
The distance between the common spacer protrusion in the corridor region and the end of the substantially rectangular seal material pattern is different from the spacer protrusion on another peripheral region that is arranged to face the other rectangular region through the substantially rectangular seal material pattern. , And substantially equal to the interval with the substantially rectangular sealing material pattern.

With such a configuration, when assembling a cell using a multi-panel substrate, the display efficiency of the multi-panel substrate is reduced due to distortion of the substrate in the vicinity of the sealing material pattern, while keeping the utilization efficiency of the multi-panel substrate at almost maximum. This can be effectively prevented.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a schematic plan view of a cell after assembly, in which an array substrate and a counter substrate are bonded together via a sealing material. Here, the assembled cells are cells before scribe removal of extra peripheral areas on four sides of the final outer shape of the display panel (outer shape of the product). FIG. 2 is a schematic longitudinal sectional view of the cell after the assembly.

The sealing material pattern 3 for sealing the liquid crystal material is provided along the inner edge of the final outer shape 52 of the counter substrate 300. The inside of the seal material pattern 3 is an image display area (effective display area) 4 except for an area having a width of 2.5 to 3 mm or less along the seal material pattern 3. In the image display area 4, a large number of columnar spacer projections 350 having a predetermined projection size according to the set substrate spacing are uniformly distributed. As shown in FIG. 2, the columnar spacer projections 350 are provided integrally on the inner surface (the lower surface in FIG. 2) of the counter substrate 300, and
It is arranged for each pixel so as to be on the upper scanning line 221.

As shown in FIG. 1, the final outer shape 51 of the array substrate protrudes outward on one long side and one short side of the sealing material pattern 3. The protruding portion is a connection pad forming region 6 in which connection pads of lead wirings drawn out from the image display region are formed.

In the peripheral region 5 outside the final outer shape 51 of the array substrate, columns 1-a1 and 1-a of the columnar spacers are formed at predetermined intervals from each side of the sealing material pattern 3.
2, 1-b1, 1-b2 and dummy seals 2-A1, 2-A2, 2-B1, 2-B located outside each of these.
2 are provided.

Each of the columns 1 of the columnar spacers
A large number of columnar spacer projections 11 having a predetermined projection size according to the set substrate spacing are arranged substantially in a straight line on the inner surface of the reference numeral 00. Each dummy seal 2 is formed in the same application step as the application of the seal material pattern 3 or in a continuous application step, using the same seal material and seal material application device as the seal material pattern 3.

The column 1 of the columnar spacers and the dummy seals 2 are provided at positions and lengths such that the respective sides of the corresponding seal material pattern 3 are moved outward in a direction perpendicular to the respective sides. .

The distance between one long side of the sealing material pattern 3 and the column 1-a1 of the columnar spacers along the long side is defined as a1, and the other long side of the sealing material pattern 3 and the column 1 of the columnar spacers along the long side. When the interval from -a2 is a2, the intervals a1 and a2 are set substantially equal to each other. The distance between one short side of the seal material pattern 3 and the column 1-b1 of the columnar spacers along the short side is defined as b1, and the seal material pattern 3
Assuming that the distance between the other short side and the column 1-b2 of the columnar spacers along the short side is b2, the distances b1 and b2 are set to be substantially equal to each other. Preferably, the gaps a1 and a2 on the long side of the sealing material pattern 3 and the gaps b1 and b2 on the short side of the sealing material pattern 3 are also set to be substantially equal to each other. More preferably, the interval a
1, a2, b1 and b2 are set substantially equal to each other.

The same applies to the intervals A1, A2, B1 and B2 between each side of the sealing material pattern 3 and each dummy seal 2. Here, the intervals A1 and A2 correspond to the long sides of the sealing material pattern, and the intervals B1 and B2 correspond to the short sides of the sealing material pattern.

In the present specification, the substantially equal intervals mean that the relative ratio of the intervals is in the range of 1.0 to 1.7. That is, the interval a1 and the interval a2
That are substantially equal to each other means that a2 ≦ 1.7 × a1 when a1 ≦ a2. Also,
The interval a1 and a2 and the interval b1 and b2 are substantially equal to each other when the average value of a1 and a2 is
This means that the average values of b1 and b2 have the above-described relationship. Furthermore, the distances a1, a2, b1 and b2 are substantially equal to each other when a1
Is minimum and b2 is maximum, b2 ≦ 1.7 ×
a1.

The range of the relative ratio of these intervals is preferably 1.0 to 1.5, and more preferably 1.0 to 1.3.
It is.

In particular, it is preferable that the relative ratio between the intervals a1 and a2 and the relative ratio between the intervals b1 and b2 are close to 1.0. When the distances a1 and a2 are substantially equal to each other, preferably when their relative ratio is close to 1.0, the cells 101 are moved in any direction in the short side direction of the sealing material pattern 3.
Is prevented from undergoing stress and deformation. Intervals b1 and b
2 is substantially equal to each other, etc., and when the interval on the long side and the interval on the short side of the sealing material pattern 3 are substantially equal to each other, all Is prevented from distorting in the cell 101 direction.
When the relative ratio between the intervals a1 and a2 and the relative ratio between the intervals b1 and b2 exceed 1.7, the effect of preventing deformation and distortion is not sufficient.

The intervals A1, A2, B1 and B2 between the dummy seal 2 and the sealing material pattern 3 are desirably set in the same manner as the above-mentioned relationship between the intervals a1, a2, b1 and b2. To some extent, dummy seal 2 also
This is because it has an effect of preventing the distortion of No. 01. However, the effect is smaller than the column 11 of the columnar spacers,
Therefore, the significance of optimizing the interval with the sealing material pattern 3 is smaller than that in the case of the column 11 of the columnar spacers.

The dummy seal 2 is used to join the upper and lower substrates when the peripheral regions of the array substrate and the opposing substrate are cut out by scribing, thereby improving workability and safety.

In this embodiment, the intervals a1, a2, b1
And b2 are both set in the range of 2.0 to 10 mm. In order to make the interval smaller than 2.0 mm, it is necessary to make the connection pad formation region 6 extremely small, which is not preferable. On the other hand, if any one of the intervals a1, a2, b1, and b2 exceeds 10 mm, the effect of preventing the substrate from being distorted in the vicinity of the seal material pattern 3 becomes insufficient. Here, the distance from the sealing material pattern 3 refers to the distance from the center line.

In a preferred embodiment of the dimensional configuration of this embodiment, the distances a1, a2, b1 and b2 are all 5.0 m.
m, and the intervals A1, A2, B1, and B2 are all set to 10.0 mm. If the distance from the outer edge is used instead of the distance from the center line of the sealing material pattern 3, these distances are 4.5 mm each.
And 9.5 mm. In this specific example, the end 51 of the final outer shape of the array substrate on the side where the connection pad is formed
The distance between the sealing material pattern 3 and the sealing material pattern 3 is 4.0 mm, the width of the sealing material pattern 3 is 1.0 mm,
Is 1.0 m from the end 52 of the final outer shape of the counter substrate
m.

In the present embodiment, the column 1 of the columnar spacer
And both ends of the linear dummy seal 2 are located within the corresponding width of the final outer shape 52 of the counter substrate as shown in the figure. That is, when cutting out the peripheral region 6 by scribing, the column 1 of the columnar spacer and the linear dummy seal 2
Is set so that there is no need to disconnect. This is because these become obstacles when scribing to make a dehiscence.

In the liquid crystal display device manufactured by the manufacturing method of this embodiment, for example, the image display area 4 has a diagonal of 11.3 inches and (800 × 3) × 600 pixels. The distance from the region 4 is set to 2.0 mm.

Next, referring to FIG. 2, the assembled cell 101 will be described.
Will be described in detail.

In the image display area 4 of the array substrate 200, signal lines and scanning lines 221 are arranged in a matrix on a transparent glass substrate 201 having a thickness of 0.7 mm so as to be orthogonal to each other. Pixel electrode 2 for each eye
71 are arranged. The pixel electrode 271 is connected to a signal line via a TFT 231 serving as a switching element disposed near each intersection. The TFT 231 includes a gate electrode 221 a extending from the scanning line 221, a drain electrode 261 formed integrally with the signal line, and a source electrode 251 connected to the pixel electrode 271. Gate electrode 22
1a and between the source and drain electrodes 251 and 261 from the gate insulating film 241 made of a silicon nitride film (SiNx), the hydrogenated amorphous silicon semiconductor layer 233, and the silicon nitride film (SiNx) in order from the bottom. , A phosphorus-doped low-resistance hydrogenated amorphous silicon semiconductor layer (n ⁺ a-Si: H) 237, 239 is disposed. The surface layer of the array substrate 200 is an alignment film 291.
Covered by

In the image display area 4 of the opposite substrate 300, a transparent glass substrate 301 having a thickness of 0.7 mm
A resin black matrix 311 for shielding the TFT 231 from light between the pixel electrode 251 and the scanning line 221 and the signal line is arranged. Then, red (R), blue (B), green (G) for realizing color display so as to cover each square of the black matrix 311.
Of color filter layers 321R, 321B, and 321G are sequentially allocated and arranged. The color filter layers 321R, 321B, and 321G are formed by sequentially depositing and patterning pigment dispersion layers of respective primary colors.

The opposing substrate 300 is further provided with a large number of columnar spacer projections 350 and 11 for keeping the distance between the array substrate 200 and the opposing substrate 300 uniform and constant. The spacer projections 350 and 11 are provided on the color filter layer 3.
First to third pigment-dispersed resin layers 35 formed by the same process and the same material as each of 21R, 321B, and 321G.
1, 353, 355 are laminated. The distance between the substrates is set to 5.0 μm by the spacer projections 350 and 11. In the image display area 4, the color filter layers 321R, 321B, 321G and the spacer projections 3
50 are covered with the counter electrode layer 331 and the alignment film 341 in this order.

The spacer projections 350 in the image display area are arranged in the vicinity of each pixel (the area corresponding to the above-mentioned grid). For example, the spacer projections 350 may be in contact with the scanning lines 221 so as not to deteriorate the display quality. Placed in contact with each other,
The dimension in the width direction (the direction along the substrate surface) is set to be substantially equal to the width of the scanning line 221.

On the other hand, the spacer projections 11 in the peripheral area 5 to be scribed are provided only at predetermined positions as already described with reference to FIG. Since the spacer projections 11 in the peripheral region 5 are not limited in the width direction dimensions, the width dimension and the cross-sectional area are set larger than the spacer projections 350 in the image display region. For example, if the cross-sectional area is 200 μm ²
Is set to The pitch of the spacer projections 11 in the peripheral area 5 is set in the same manner as the spacer projections 350 in the image display area.

In the example shown in FIG. 2, the spacer projections 11 in the peripheral area 5 are replaced with the spacer projections 350 in the image display area.
The spacer protrusions 11 in the peripheral region 5 are also provided with the black matrix layer 311 and the like so as to have exactly the same protrusion dimensions as described above. However, there is no practical problem if the spacer protrusions 11 are set to the same height.

According to the above embodiment, the sealing material pattern 3
Can be effectively prevented from deteriorating the image display quality in the vicinity of. In addition, there is no increase in manufacturing process burden and cost.

The second embodiment will be described with reference to FIG.

FIG. 3 is a plan view of a multi-panel cell for producing four display panels. This multi-cavity cell 1
02 indicates that the array substrate 200 and the counter substrate 300 are
This is a product in which four chamfers in a × 2 arrangement are bonded via a sealing material. These four-chamfered substrates are the original substrates before cutting out, or the original substrates are appropriately divided.

This embodiment differs from the first embodiment in the following points. Areas 7-1 to 7 corresponding to display panel
-4 (hereinafter referred to as the display panel surface), the scribe-removed corridor region 53 includes two adjacent display panel surfaces 7-1 and 7-2, 7-1 and 7-3, Column 1 of columnar spacer shared by 7-3 and 7-4 and 7-4 and 7-1
5-12, 15-13, 15-34 and 15-24 are provided. In addition, instead of the dummy seal 2 on the straight line, a dot-shaped dummy seal 21 is provided near both ends of the column 15 of these shared columnar spacers.

Also in the present embodiment, when attention is paid to the sealing material patterns 3-1 to 3-4 on each display panel surface 7, each of the substantially rectangular sides of the sealing material pattern 3 and the corresponding column of the columnar spacers. The intervals a1, a2, b1 and b2 are substantially equal to each other.

Preferably, in the multi-cavity cell 102, the distance between each long side of the sealing material pattern 3 and the row 1 of each columnar spacer along the same is substantially equal, and each short side of the sealing material pattern 3 is short. The distance between the side and the row 1 of each columnar spacer along the side is substantially equal. More preferably, the intervals between the sealing material pattern 3 and the row 1 of the columnar spacers are all substantially equal in the multi-cavity cell 102. More preferably, in addition to this, the intervals between the sealing material pattern 3 and the linear dummy seal 2 are all substantially equal. With such a preferable configuration, distortion of the substrate in the multi-cavity cell 102 can be suppressed, and distortion of the substrate in the vicinity of the seal material pattern 3 can be further reduced for each of the obtained display panels.

According to the present embodiment, in the case of using a multi-cavity cell, substantially the same effects as in the first embodiment can be obtained.

A third embodiment will be described with reference to FIG.

FIG. 4 is a plan view of another multi-panel cell for producing four display panels. The multi-cavity cell 103 also has a 2 × 2 array of 4 cells in the same manner as in the second embodiment.
Although it is chamfering, two display panel surfaces forming a vertical column, that is, display panel surfaces 7-1 and 7-2 and 7-3.
And 7-4 are arranged so as to be in contact with each other. That is, the corridor-like region 53 is formed by two display panel surfaces forming a horizontal row, that is, display panel surfaces 7-1 and 7-.
3, and only between 7-2 and 7-4.

The columns 15-13 and 15-24 of the columnar spacers shared by the two display panel surfaces in the horizontal row are the second columns.
The seal material pattern 3 is completely the same as that of the embodiment of FIG.
The mutual relationship between -1 to 3-4 and the column 1 of the columnar spacer corresponding to each short side thereof is set in the same manner as in the third embodiment.

However, where the display panel surfaces are in contact with each other, the row 1 of columnar spacers cannot be provided in the corridor-like region 53 to be scribed and removed. Therefore, as shown in the figure, the outside of the seal material pattern 3 is within the range of the display panel surface 7-2 in which the connection pad region 6 is not directed to the sides that are in contact with each other, that is, within the range of the final outer shape of the display panel. Are provided with rows 16 of columnar spacers. In this case, the distance between the columnar spacer row 16 on the display panel surface and the sealing material pattern 3-2 is set to the columnar spacer row 1-a2 and the sealing material pattern 3-2 corresponding to the opposing long sides.
It is difficult to make the distance substantially the same as the distance between. However, by arranging the column 1-a2 of the columnar spacers sufficiently close to the edge of the display panel surface 7-2, substantially the same effect as in the third embodiment can be obtained.

[0066]

According to the method of manufacturing a liquid crystal display device of the present invention, it is possible to effectively prevent the image display quality from deteriorating due to the distortion of the substrate in the vicinity of the sealing material pattern, and furthermore, burden the manufacturing process. In addition, there is no increase in cost.

[Brief description of the drawings]

FIG. 1 schematically shows a positional relationship between a seal material pattern, a row of peripheral spacer protrusions, and a dummy seal material pattern in bonding substrates and assembling cells according to a first embodiment. It is a top view for explanation.

FIG. 2 is a longitudinal sectional view schematically showing a laminated structure at the time of bonding substrates and assembling cells according to the first embodiment.

FIG. 3 schematically shows a positional relationship between a seal material pattern, a row of peripheral spacer protrusions, and a dummy seal material pattern in the case of bonding substrates and assembling cells according to a second embodiment. It is a top view for explanation.

FIG. 4 schematically shows a positional relationship between a seal material pattern, a row of peripheral spacer protrusions, and a dummy seal material pattern in bonding substrates and assembling cells according to a third embodiment. It is a top view for explanation.

FIG. 5 is a schematic longitudinal sectional view for describing a problem in pasting of substrates and assembling cells in a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Column-shaped spacer row 11 Spacer protrusion in peripheral area 2 Dummy seal 3 Seal material pattern 4 Image display area 5 Peripheral area to be scribed 51 Final outer shape of array substrate 52 Final outer shape of counter substrate a-1 to a-4 Distance between row 1 of columnar spacers and sealing material pattern 3 A-1 to A-4 Distance between each dummy seal 2 and sealing material pattern 3

Claims (11)

[Claims] 1. A first substrate and a second substrate are bonded to each other via a substantially rectangular sealing material pattern with a gap for holding a liquid crystal layer, and then the peripheral regions of the first and second substrates are bonded to each other. A method of manufacturing a liquid crystal display device having an image display area surrounded by the seal material pattern, the method including: removing at least one of the first and second substrates is integrally formed with a spacer projection that defines the gap. The spacer protrusions are arranged in the image display area and the peripheral area, respectively, and in at least one of pairs formed by opposing edges of the seal material pattern, the opposing ends are formed. The method of manufacturing a liquid crystal display device, wherein the spacer protrusions are arranged at substantially equal distances from each of the sides toward the peripheral region. 2. The distance between the spacer end and the first end arranged in the peripheral region adjacent to the first end of the seal material pattern is a1, and the second end is opposed to the first end. The distance between the spacer protrusion disposed in the peripheral region close to the side and the second end is a2, and the spacer disposed in the peripheral region close to the third end adjacent to the first end The distance between the protrusion and the third end is b1, and the distance between the spacer protrusion disposed in the peripheral region near the fourth end facing the third end and the fourth end is b2. 2. The method according to claim 1, wherein each of a1, a2, b1, and b2 is within a range of 2 to 10 mm. 3. The distances a1, a2, b1 and b2 are:
3. The method according to claim 2, wherein the liquid crystal display devices are formed substantially equal to each other. 4. A second seal material pattern is arranged in the peripheral region of the first and second substrates, and a distance between a first end of the seal material pattern and the second seal material pattern. A1, the second of the sealing material pattern
The distance between the edge and the second seal material pattern is A2, the distance between the third edge of the seal material pattern and the second seal material pattern is B1, and the distance between the third edge and the second seal material pattern is B4.
The liquid crystal according to claim 1, wherein when a distance between an edge and the second seal material pattern is B2, A1 and A2 or B1 and B2 are substantially equal to each other. A method for manufacturing a display device. 5. The method according to claim 1, wherein at least one of the pair of substrates has a thickness of 0.7 mm or less. 6. A multi-panel substrate for manufacturing by cutting out a plurality of display panels, wherein the first and second substrates are formed by cutting out a plurality of display panels.
The display panel includes a plurality of display panel regions corresponding to the outer shape of the display panel, and is sandwiched between two display panel regions. In one corridor-like region belonging to the peripheral region, the spacer projection includes the two display panels. 2. The method according to claim 1, wherein the spacer is disposed as a common spacer projection corresponding to the panel area. 7. The distances a1 and a2 for one display panel area and the distances a1 and a2 for another display panel area are substantially equal to each other, or 7. The liquid crystal according to claim 6, wherein the distances b1 and b2 related to the display panel area are substantially equal to the distances b1 and b2 related to the other display panel areas. A method for manufacturing a display device. 8. The method according to claim 1, wherein said spacer projections are formed on an array substrate. 9. The method according to claim 1, wherein the spacer projection is formed on a counter substrate. 10. A method of sequentially depositing and patterning a three-color pigment dispersion layer on at least one of the first and second substrates and patterning the three-color pigment dispersion layer in the image display area. 2. The method for manufacturing a liquid crystal display device according to claim 1, further comprising the step of forming a color filter and forming the spacer projection having a three-layered structure of the pigment dispersion layer. 11. A first substrate and a second substrate are bonded to each other via a substantially rectangular seal material pattern with a gap for holding a liquid crystal layer, and then the peripheral regions of the first and second substrates are bonded. A method of manufacturing a liquid crystal display device including an image display region surrounded by the seal material pattern, the method including: removing the spacer protrusions at least in each of the image display region and the peripheral region; A plurality of display panels corresponding to a product outer shape of the display panel, wherein each of the first and second substrates is a multi-panel substrate for cutting and manufacturing the display panel; Regions are provided directly in contact with each other without the peripheral region interposed therebetween, and where the two display panel regions are in direct contact with each other, the spacer projections As a common spacer projection corresponding to the two display panel regions, the spacer protrusion is disposed on one of the display panel regions, that is, inside the outer shape of the product, and outside the seal material pattern. At locations adjacent to each other via the corridor region of the peripheral region, the spacer protrusions are disposed in the corridor region as common spacer protrusions corresponding to the two display panel regions, The distance between the common spacer protrusion and the end of the substantially rectangular seal material pattern is different from that of the spacer protrusion on another peripheral region that is disposed to face through the substantially rectangular seal material pattern and the substantially rectangular seal material pattern. A method for manufacturing a liquid crystal display device, wherein the distance is substantially equal to a distance from a material pattern.