JP6846446B2 - Liquid crystal display device and mother liquid crystal display panel - Google Patents

Description

The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device having improved reliability of a seal portion when the width of a frame area surrounding a display area is reduced.

In a liquid crystal display panel used in a liquid crystal display device, a TFT substrate in which pixels having pixel electrodes and thin film transistors (TFTs) are formed in a matrix, and an opposing substrate are arranged so as to face the TFT substrate and face the TFT substrate. A liquid crystal is sandwiched between the substrates. An image is formed by controlling the light transmittance of the liquid crystal molecules for each pixel.

In the liquid crystal display panel, the liquid crystal exists in the area surrounded by the TFT substrate, the opposing substrate, and the surrounding sealing material. In this space, the method of injecting the liquid crystal from the sealing hole and the TFT substrate and the opposing substrate are used. There is a method (ODF method) in which a liquid crystal is dropped onto a TFT substrate or an opposing substrate to fill the liquid crystal before bonding.

The ODF method (dropping method) has come to be widely used because the speed of filling the liquid crystal is high. In the dropping method, it is necessary to accurately control the amount of liquid crystal to be dropped. Even so, when the TFT substrate and the opposing substrate are adhered to each other, the distance between the substrates tends to be non-uniform, especially in the sealed portion. In Patent Document 1, in order to prevent the spacing between the substrates from becoming uneven when the dropping method is used, the inner first sealing material and the outer second sealing material are arranged at intervals. Then, when the distance between the position where the liquid crystal is dropped and the first sealing material is a and the distance between the first sealing material and the second sealing material is b, the relationship between a and b is 2.5 to 5 times. The configuration to be set in the double range is described.

Japanese Unexamined Patent Publication No. 2005-115155

On the other hand, in liquid crystal display devices, there is a growing demand for the outer shape to have a constant size and the display area to be as large as possible. Then, the width from the end of the display area to the outer shape of the liquid crystal display panel, that is, the so-called frame area becomes narrow. In a small liquid crystal display device, the width of this frame area is reduced to about 1 mm. In this case, the width of the sealing material for adhering the TFT substrate and the facing substrate becomes small, and the reliability of the sealing portion becomes a problem.

In addition to this, in the case of the dropping method, the sealing material is in a semi-cured state at the time when the liquid crystal is dropped, so if the pressure in the region filled with the liquid crystal is large between the TFT substrate and the facing substrate, the liquid crystal May be inserted between the sealing material and the TFT substrate or the opposing substrate, and the reliability of the sealing portion may be impaired.

An object of the present invention is to realize a liquid crystal display device capable of maintaining the reliability of the sealing portion even when the frame area is narrowed and the width of the sealing material is narrowed when the liquid crystal is filled by the dropping method. That is.

The present invention overcomes the above problems, and specific means are as follows.

(1) A liquid crystal display device in which a TFT substrate having a display area and a terminal portion and an opposing substrate having a display region are adhered to each other by a sealing material formed on the sealing portion, and a liquid crystal is sealed inside the sealing portion. A first wall-shaped spacer is formed in the sealing portion so as to surround the display area and the sealing material, and the first wall-shaped spacer defines a distance between the TFT substrate and the facing substrate. A liquid crystal display device characterized by being present.

(2) The seal portion is composed of a terminal-side seal portion and other seal portions, and in the terminal-side seal portion, a second seal material is formed on the outside of the first wall-shaped spacer, and the first seal portion is formed. The second wall-shaped spacer is formed on the outside of the sealing material 2, and the end portion of the facing substrate is present on the outside of the second wall-shaped spacer according to (1). Liquid crystal display device.

(3) The liquid crystal display device according to (2), wherein a columnar spacer for scribe is formed between an end portion of the facing substrate and the second wall-shaped spacer.

(4) Described in (1), the inner corner portion of the first wall-shaped spacer is formed with an R having a radius of curvature of R0.3 mm or more, more preferably R0.5 mm or more. Liquid crystal display device.

(5) A mother substrate in which a TFT substrate having a terminal portion and a facing substrate having a display area are adhered to each other by a sealing material, and a plurality of liquid crystal display panels in which liquid crystal is sealed are formed inside the sealing material. The display area of the liquid crystal display panel is surrounded by a seal portion, and the seal portion is formed with a first wall-shaped spacer surrounding the display area and the seal material. The wall-shaped spacer defines the distance between the TFT substrate and the facing substrate, and a second sealing material that surrounds the plurality of liquid crystal display panels is formed in contact with the first wall-shaped spacer. A mother board featuring.

(6) The seal portion is composed of a terminal-side seal portion and other seal portions, and in the terminal-side seal portion, a second wall-shaped spacer is formed on the outside of the second seal material. The mother substrate according to (5).

(7) The mother substrate according to (5), wherein the sealing material for the mother substrate is formed on the outside of the first sealing material.

According to the present invention, in a liquid crystal display device in which a liquid crystal is filled by a dropping method, it is possible to prevent the liquid crystal from being inserted between the sealing material and the TFT substrate or the opposing substrate, so that the reliability of the sealing portion can be prevented. Can be raised. Therefore, it is possible to realize a liquid crystal display device having a narrow frame area, that is, a large display area.

It is a top view of the liquid crystal display device of this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is a top view before removing the facing substrate of a terminal part in the liquid crystal display device of this invention. FIG. 3 is a cross-sectional view taken along the line BB of FIG. It is a top view of the mother substrate in this invention. It is an enlarged view of the area A of FIG. FIG. 5 is a cross-sectional view taken along the line CC of FIG. It is another example which shows the CC cross section of FIG. It is still another example which shows the CC cross section of FIG. It is still another example which shows the CC cross section of FIG. It is a top view of the area B of FIG. It is a top view of the area C of FIG. It is a top view of the liquid crystal display device which shows the example in which the liquid crystal is inserted. FIG. 3 is a cross-sectional view taken along the line DD of FIG. It is a top view which shows the example of a mother substrate. FIG. 15 is a cross-sectional view taken along the line EE of FIG. 16 is a cross-sectional view taken along the line FF of FIG. It is another plan view of the area C of FIG. It is still another plan view of the area C of FIG. It is still another plan view of the area C of FIG.

Since it is inefficient to form one liquid crystal display panel at a time, it is possible to form a large number of liquid crystal display panels on one mother substrate and separate them into individual liquid crystal display panels after the mother substrate is completed. It has been. When separating into individual liquid crystal display panels, if a sealing material is present at the breaking line, it becomes difficult to separate by scribe or the like, so no sealing material is formed at the breaking line portion. However, in this method, in order to prevent the sealing material from protruding into the breaking line portion, the portion where the sealing material does not exist must be relatively widened across the breaking line.

In order to prevent this, there is a method of forming a wall-shaped spacer at the break line portion and cutting the wall-shaped spacer portion. FIG. 13 is a plan view and a side view of the liquid crystal display device formed in this manner. In FIG. 13, the TFT substrate 100 and the opposing substrate 200 are attached to each other by the sealing material 40, and the liquid crystal 300 is sealed inside the sealing material 40. The TFT substrate 100 is formed larger than the facing substrate 200, and the portion where the TFT substrate 100 is one is a terminal portion for mounting an IC driver or forming a terminal or the like for connecting to a flexible wiring board or the like. It is 150.

FIG. 14 is a cross-sectional view taken along the line DD of FIG. 13 including the breaking line 50. In FIG. 13, the TFT substrate 100 and the opposing substrate 200 are adhered to each other by the sealing material 40, and the liquid crystal 300 is present inside. A wall-shaped spacer 10 is formed at the end where the TFT substrate 100 and the facing substrate 200 are cut, and the seal of the cut region is eliminated. However, the breaking line 60 facing the terminal portion 150 side in FIG. 13 is not cut because it is necessary to cut only one facing substrate and leave the terminal portion on the TFT substrate. Therefore, the configurations of the break line 50 and the break line 60 are different.

FIG. 15 is a plan view showing a state in which two liquid crystal display panels are arranged side by side in the state of the mother substrate. FIG. 16 is a cross-sectional view showing a cross section including a breaking line 50 in FIG. In FIG. 16, the break line 50 breaks the center of the wall spacer 10. FIG. 17 is a cross-sectional view of FIG. 15 including a breaking line 60. In FIG. 17, the breaking line 60 that breaks only the facing substrate 200 exists outside the sealing material 40.

In the breaking line 60, when the opposing substrate facing the terminal portion is removed, it is difficult to remove the sealing material if the sealing material is present in the terminal portion. Therefore, there is no sealing material on one side of the breaking line 60. .. On the other hand, when scribing for breaking is inserted, if the glass is bent, proper scribing cannot be performed. Therefore, the columnar spacer 30 for scribing is arranged with the breaking line 60 in between. The frame width w1 other than the terminal portion 150 is about 1 mm, whereas the terminal portion 150 can have a frame width w2 of about 3 mm, so that there is no problem with such a configuration in the terminal portion 160. ..

In such a configuration, a phenomenon of insertion of the liquid crystal 300 between the sealing material 40 and the TFT substrate 100 or the opposing substrate 200 (hereinafter, simply referred to as insertion of the liquid crystal) occurs in the region shown in H1 shown in FIG. This is because, as shown in FIG. 15, on the long side of the liquid crystal display panel, the wall spacer 10 and the sealing material 40 of the adjacent liquid crystal display panel are present on one side of the sealing material 40, whereas the terminal portion 150 is present. Then, it is considered that the sealing material does not exist at the tip of the wall spacer 10 or the wall spacer. When the liquid crystal display device is dropped and the TFT substrate 100 and the facing substrate 200 are bonded to each other, the sealing material 40 is not yet cured, and the sealing material 40 moves due to the pressure from the liquid crystal, so that insertion occurs. Can be considered. The examples shown below provide a configuration for preventing such a phenomenon.

FIG. 1 is a plan view showing a first embodiment of the present invention. In FIG. 1, the TFT substrate 100 and the opposing substrate 200 are bonded to each other by a sealing material 40, and a liquid crystal is sandwiched between the TFT substrate 100 and the opposing substrate 200. In FIG. 1, wall-shaped spacers 10 are provided at the end portions of the substrate on the three sides excluding the terminal portion 150. A wall-shaped spacer 10 extends to the outside of the sealing material 40 at the terminal portion 150. Further, the outer sealing material 41 exists on the outer side (terminal portion side) of the wall-shaped spacer 10. An outer wall spacer 11 is present to regulate the outer sealing material 41 from spreading outward. On the outside of the outer side wall spacer 11, there is a breaking line 60 that removes only the portion of the facing substrate 200. The breaking line 60 corresponds to a place where scribing for breaking is inserted in the facing substrate 200, and at this time, a columnar spacer 30 for scribe is arranged so that the glass does not bend.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. In FIG. 2, the liquid crystal 300 is sealed inside the sealing material 40. The wall-shaped spacer 10 exists on the outside of the sealing material 40, the outer sealing material 41 exists on the outside of the wall-shaped spacer 10, and the outer sealing material 41 is further dammed by the outer outer wall-shaped spacer 11. There is. A columnar spacer 30 for preventing bending during scribing exists on the outer side of the outer side wall spacer 11.

As shown in FIG. 2, the terminal portion 150 also has a structure of a sealing material, a wall-shaped spacer, and a sealing material when viewed in a plane. With such a configuration, when the facing substrate 200 and the TFT substrate 100 are bonded together, the sealing material 40 is dammed by the wall spacer 10 even if pressure is applied from the liquid crystal side, and the sealing material 40 does not move. Since there is no liquid crystal, the liquid crystal is not inserted.

FIG. 3 shows a plan view of the liquid crystal display panel before removing the facing substrate 200 facing the terminal portion 150. The breaking line 60 shown by the dotted line is different from FIG. 1 in that the glass is not yet separated. In FIG. 3, columnar spacers 30 for scribe are arranged on both sides of the breaking line 60. The outer sealing material 41 does not exist in this portion. This is because the sealing material 41 is dammed by the outer side wall spacer 11.

FIG. 4 is a cross-sectional view taken along the line BB of FIG. In FIG. 4, columnar spacers 30 for scribe are arranged on both sides of the breaking line 60. This is to prevent the glass from bending during scribing. In FIG. 4, when the glass on the opposite substrate 200 side is removed at the break line 60, the result is the same as in FIG.

FIG. 5 is a plan view showing a mother substrate. In FIG. 5, three liquid crystal display panels are formed on the mother substrate. However, this is an example, and in many cases, a large number of liquid crystal display panels are formed on the mother substrate. In FIG. 5, a sealing material 410 for a mother substrate is formed around the three liquid crystal display panels. This is to bond the mother TFT substrate and the mother facing substrate.

In each liquid crystal display panel of FIG. 5, a sealing material 40 is formed so as to surround the display area 1000. A wall-shaped spacer 10 is formed around the sealing material 40. An outer sealing material 41 is formed on the outside of the wall spacer 10.

In the terminal portion 150, the outer wall-shaped spacer 11 is formed on the outer side of the outer sealing material 41, and in the terminal portion 150, the outer sealing material 41 is prevented from spreading more than necessary to reach the breaking line 60. On the other hand, other than the terminal portion 150, the outer wall-shaped spacer 11 does not exist because it is not necessary to separate the facing substrate as in the terminal portion.

As shown in FIG. 5, all the sides surrounding the display area 1000 of the liquid crystal display panel have a structure of a sealing material, a wall-shaped spacer, and an outer sealing material when viewed in a plane. This prevents the liquid crystal 300 from being inserted into the seal portion on all sides. Therefore, the reliability of the seal portion can be ensured on all sides of the liquid crystal display panel. Other configurations of the individual liquid crystal display panels of FIG. 5 are the same as those described with reference to FIGS. 1, 3, and the like.

In this embodiment, in the individual liquid crystal display panels shown in FIG. 5, various configurations are added to the seal portion of the terminal portion. FIG. 6 is a detailed plan view of the region A of FIG. 5, and FIG. 7 is a sectional view taken along the line CC of FIG. In FIG. 6, the upper side of the wall-shaped spacer 10 is the inner side, and the lower side of the wall-shaped spacer 10 is the outer side. In FIG. 6, the liquid crystal 300 is filled inside. A sealing material 40 is formed on the outside of the liquid crystal 300. In the sealing material 40, a columnar spacer 20 that defines the distance between the TFT substrate 100 and the opposing substrate 200 is formed. The columnar spacer 20 is formed on the color filter 202 formed in a striped shape on the facing substrate 200 side. Such columnar spacers 20 are formed in three rows from the inside. The color filter 202 is formed by, for example, a blue color filter.

In FIG. 6, the wall spacer 10 is formed on the color filter 202 on the facing substrate 200 side. The columnar spacer 20 in FIG. 6 is arranged so that the distance between the opposing substrate 200 and the TFT substrate 100 does not become too small when a pressing force is applied to the opposing substrate 200 from the outside. There is a slight gap between the tip of 20 and the TFT substrate 100, but the present invention is not limited to this.

In FIG. 6, an outer sealing material 41 is formed on the outside of the wall spacer 10. The outer sealing material 41 is partitioned by the outer wall spacer 11. A color filter 202 is formed in a striped shape on the facing substrate 200 side of the portion where the outer sealing material 41 is present, and a columnar spacer 20 is formed on the color filter 202. The striped color filter 202 and the columnar spacer 20 are formed in three rows. The color filter 202 is formed by, for example, a blue color filter.

Two rows of columnar spacers 30 for preventing bending during scribe are formed on the outside of the outer side wall spacer 11, and the center of the columnar spacer rows is a scribing line, that is, a breaking line 60. In FIG. 6, since the outer sealing material 41 is partitioned by the outer wall-shaped spacer 11, it does not protrude to the place where the scribe columnar spacer 30 exists. Therefore, it can be broken by scribing with high accuracy.

FIG. 7 is a cross-sectional view taken along the line CC of FIG. In FIG. 7, the base film 101 is formed on the TFT substrate 100, and the bridge wiring 102 is formed on the base film 101. An inorganic insulating film 103 is formed so as to cover the base film 101 and the bridge wiring 102. Wiring 104 such as a video signal line is formed on the inorganic insulating film 103. An organic passivation film 106 is formed on the wiring 104, and an inorganic insulating film 107 made of SiN or the like is formed on the organic passivation film 106.

Through holes 108 are formed in the organic passivation film 106. The through holes of the organic passivation film 106 have a role of blocking water that has entered from the terminal portion 150 through the organic passivation film 106. Inside the through hole 108 formed in the organic passivation film 106, the wiring 104 is connected to the bridge wiring 102 via the contact hole 105 formed in the inorganic insulating film 103. On the outside of the through hole 108 formed in the organic passivation film 106, the bridge wiring 102 is connected to the terminal wiring 1041 via the contact hole 105 formed in the inorganic insulating film 103. The role of the bridge wiring 102 is to block moisture from the outside transmitted through the interface between the organic passivation film 106 and the terminal wiring 1041.

In the facing substrate 200, a black matrix 201 is formed on the seal portion. This is to prevent light leakage from the seal portion. A color filter 201 is formed on the black matrix 201 at a portion corresponding to the wall spacer 10 or the columnar spacer 20. This is because the heights of the columnar spacer 20 and the wall spacer 10 and the like are aligned with the columnar spacer in the display area 1000. The overcoat film 203 is formed so as to cover the color filter 202.

A wall-shaped spacer 10, an outer wall-shaped spacer 11, a columnar spacer 20, and the like are formed on the overcoat film 203. These spacers can all be formed by the same material in the same process by using a halftone mask or the like, but they can also be individually formed by using another mask or the like. A sealing material 40 is formed on the display region side of the wall spacer 10, and an outer sealing material 41 is formed on the terminal portion side. The liquid crystal is sealed by the sealing material 40, and the wall spacer 10 is for preventing the sealing material 40 from moving and inserting the liquid crystal when the TFT substrate 100 and the facing substrate 200 are bonded to each other. The outer sealing material 41 is partitioned by the outer wall-shaped spacer 11.

A columnar spacer 30 for scribe for breaking is formed on the outside of the outer side wall spacer 11. A break line 60 exists in the center of the two rows of columnar spacers 30. Since the outer sealing material 41 is partitioned by the outer wall-shaped spacer 11, the outer sealing material 41 does not exist on the breaking line 60, so that the breaking can be performed with high accuracy.

In this embodiment, it is possible to prevent the liquid crystal from being inserted in the seal portion, accurately control the distance between the TFT substrate 100 and the facing substrate 200 in the seal portion, and effectively prevent the ingress of moisture from the outside. it can.

FIG. 8 is another embodiment of this embodiment. FIG. 8 is also a cross-sectional view taken along the line CC of FIG. The difference between FIG. 8 and FIG. 7 is that in the TFT substrate 100, the recess 109 is formed in the organic passivation film 106. The recess 109 is formed in the organic passivation film 106 between the columnar spacer 30 and the columnar spacer 30 and between the columnar spacer 30 and the wall spacer 10. By forming such a recess 109, even if water infiltrates from the outside, the path through which the water reaches the liquid crystal can be lengthened, so that the life of the liquid crystal display device can be extended accordingly. Can be done.

FIG. 9 is still another embodiment of this embodiment. FIG. 9 is also a cross-sectional view taken along the line CC of FIG. The difference between FIG. 9 and FIG. 7 is that the color filter does not exist in the portion where the wall-shaped spacer 10 exists on the facing substrate 200 side. Since the wall-shaped spacer 10 has a larger width than the columnar spacer 20, the height tends to be higher when photolithography is performed under the same conditions. Therefore, if there is no color filter in the portion of the wall spacer 10, it may be possible to form a spacer having a uniform height.

FIG. 10 is still another embodiment of this embodiment. FIG. 10 is also a cross-sectional view taken along the line CC of FIG. FIG. 10 is a combination of the configurations of FIGS. 8 and 10. That is, on the TFT substrate 100 side, the path of moisture intrusion can be lengthened by forming the recess 109. Further, on the facing substrate 200 side, the color filter is not formed on the portion of the wall spacer 10. The effect is a combination of the effects of FIGS. 8 and 9.

In a liquid crystal display device that fills liquid crystal by a dropping method, it is considered that the cause of the liquid crystal being inserted in the seal portion is that the sealing material 40 moves due to the pressure of the liquid crystal inside. In order to prevent the sealing material 40 from moving due to the pressure of the liquid crystal, it is preferable that the wall spacer 10 and the sealing material 40 are in close contact with each other. Since the sealing material 40 is applied by a dispenser or the like, the corners of the display area tend to be rounded. If the wall-shaped spacer 10 is formed in a square shape at a corner portion of the display region, the sealing material 40 may not be able to fill the corner portion. That is, if there is a gap between the sealing material 40 and the wall-shaped spacer 10, the sealing material causes movement.

In this embodiment, in order to prevent this, R is attached to the inside of the wall-shaped spacer 10 at the corner portion of the display area. FIG. 11 is an enlarged plan view showing the region B of FIG. In FIG. 11, R is formed at the corner portion of the wall-shaped spacer 10. Therefore, the sealing material 40 is surely filled up to the corner of the wall spacer 10. If the size of R is too small, the effect is limited, so it is desirable that it is 0.3 mm or more, and further 0.5 mm or more.

FIG. 12 is an enlarged plan view showing the region C of FIG. In FIG. 12, R is formed at the corner portion of the wall-shaped spacer 10. Therefore, the sealing material 40 is surely filled up to the corner portion of the wall-shaped spacer. If the size of R in this case is too small, the effect is limited, so it is desirable that it is 0.5 mm or more. On the other hand, on the outside of the wall-shaped spacer 10 on which the outer sealing material is arranged, in FIG. 12, the inner corner of the wall-shaped spacer 10 or the outer wall-shaped spacer 11 is square, but this portion may also be R-shaped. Good.

According to this embodiment, the movement of the sealing material 40 can be suppressed even in the corner portion of the display region, and the liquid crystal can be prevented from being inserted in the corner portion of the display region.

In the above-described embodiment, the sealing material 40, the wall-shaped spacer 10, the outer sealing material 41, the outer wall-shaped spacer 11, and the scribe columnar spacer 30 are formed in this order from the display area side to the terminal portion side. .. However, it is not limited to this, as shown in FIG. 18, a configuration without a wall spacer 10, a configuration without an outer spacer 11 as shown in FIG. 19, and a configuration without an outer spacer 11 as shown in FIG. 20, both the wall spacer 10 and the outer spacer 11 , Both may be absent. Even in these cases, since the width of the sealing material on the terminal portion side is larger than that on the three sides other than the terminal portion, the effect on the insertion of the liquid crystal can be obtained, and the sealing area on the terminal portion side can be obtained. It is possible to narrow the width.

Further, neither the wall spacer 10 nor the outer spacer 11 needs to be provided on the facing substrate 200, and a part or all of them may be provided on the TFT substrate 100. Further, each spacer does not have to have the same height over the front circumference, and a part of the spacers may have a lowered height. Further, the three sides other than the terminal portion 150 side are disclosed with the same structure, and the configuration of the terminal portion 150 side is disclosed so as to be different from the above three sides, but the present invention is not limited to this, and the terminal portion 150 side is not limited thereto. The configuration may be different from at least two sides adjacent to the terminal portion 150 side. Regarding the side facing the side of the terminal portion 150, all or a part of the wall spacer 10, the outer sealing material 41, and the outer wall spacer 11 are provided according to the configuration of the adjacent liquid crystal display panel. You may. Further, when the side on which the terminal portion is formed is two sides, the side on which the terminal portion is formed may be different from the side on which the terminal portion is not formed.

10 ... wall spacer, 11 ... outer wall spacer, 20 ... columnar spacer, 30 ... columnar spacer for liquid crystal, 40 ... sealing material, 41 ... outer sealing material, 50 ... breaking line, 60 ... breaking line, 100 ... TFT substrate , 101 ... Undercoat film, 102 ... Bridge wiring, 103 ... Inorganic insulating film, 104 ... Wiring, 105 ... Contact hole, 106 ... Organic passage film, 107 ... Upper insulating film, 108 ... Through hole, 109 ... Recessed, 150 ... Terminal Part, 200 ... Opposite substrate, 201 ... Black matrix, 202 ... Color filter, 203 ... Overcoat film, 300 ... Liquid crystal, 1000 ... Display area, 1041 ... Terminal wiring

Claims (8)

A rectangular TFT substrate having a display area and a terminal portion, a rectangular facing substrate having a display area, a sealing material for adhering the TFT substrate and the facing substrate, and a sealing material sealed inside the sealing material. A liquid crystal display device having a liquid crystal
The opposed substrate includes a black matrix, a color filter, and an overcoat film.
The sealing material is formed in a rectangular shape parallel to each side of the facing substrate.
The sealing material has a first sealing portion formed along the edge of the side of the facing substrate on three sides not facing the terminal portion, and the terminal portion on the side facing the terminal portion. Has a second seal formed parallel to the side facing the
The second seal portion is formed wider than the first seal portion.
A non-forming region of the sealing material is provided between the end portion of the facing substrate and the second sealing portion, and a plurality of first columnar spacers are formed in the non-forming region along the end portion of the facing substrate. Being done
A liquid crystal display device, wherein the plurality of first columnar spacers are formed on the overcoat film and do not overlap with the color filter and the black matrix. In the second seal portion, the facing substrate has a wall-shaped spacer, and the TFT substrate has an organic insulating film.
The organic insulating film has a plurality of grooves at places other than the wall-shaped spacer, and has a plurality of grooves.
The liquid crystal display device according to claim 1, wherein the wall-shaped spacer is formed on the overcoat film and overlaps the color filter and the black matrix. The TFT substrate includes a base film, an inorganic insulating film covering the base film, an organic insulating film covering the inorganic insulating film, a bridge wiring provided between the base film and the inorganic insulating film, and the inorganic insulation. It has a terminal wiring provided between the film and the organic insulating film, and a wiring provided between the inorganic insulating film and the organic insulating film.
In the second seal portion, a through hole in which the organic insulating film is cut out is formed along the end portion of the facing substrate.
The bridge wiring overlaps the through hole and
The liquid crystal display device according to claim 1, wherein the wiring and the terminal wiring are connected by the bridge wiring in the region where the through hole is formed. In the second seal portion, it has a plurality of second columnar spacers along the end portion of the facing substrate, and has a plurality of second columnar spacers.
The liquid crystal display device according to claim 1, wherein the second columnar spacer is formed on the overcoat film and overlaps the color filter and the black matrix. A mother liquid crystal display panel in which a TFT substrate having a display area and a terminal portion and a facing substrate having a display area are adhered to each other by a sealing material, and a plurality of liquid crystal display panels in which liquid crystals are sealed are formed inside the sealing material. And
The opposed substrate includes a black matrix, a color filter, and an overcoat film.
The sealing material is formed in a rectangular shape parallel to each side of the breaking position of the facing substrate.
The sealing material has a first sealing portion formed along the end of the breaking position of the facing substrate on three sides not facing the terminal portion, and the sealing material at the breaking position facing the terminal portion. a second sealing portion which is parallel with the breaking position facing the terminal portion,
The second seal portion is formed wider than the first seal portion.
A non-forming region of the sealing material is provided between the breaking position of the facing substrate and the second sealing portion, and a plurality of first columnar spacers are formed in the non-forming region along the end portion of the facing substrate. Being done
A mother liquid crystal display panel characterized in that the plurality of first columnar spacers are formed on the overcoat film and do not overlap with the color filter and the black matrix. In the second seal portion, the facing substrate has a wall-shaped spacer, and the TFT substrate has an organic insulating film.
The wall spacer is formed on the overcoat film and overlaps the color filter and the black matrix.
The mother liquid crystal display panel according to claim 5, wherein the organic insulating film has a plurality of grooves in a place other than the wall-shaped spacer. The TFT substrate includes a base film, an inorganic insulating film covering the base film, an organic insulating film covering the inorganic insulating film, a bridge wiring provided between the base film and the inorganic insulating film, and the inorganic insulation. It has a terminal wiring provided between the film and the organic insulating film, and a wiring provided between the inorganic insulating film and the organic insulating film.
In the second seal portion, a through hole in which the organic insulating film is cut out is formed along the end portion of the facing substrate.
The bridge wiring overlaps the through hole and
The mother liquid crystal display panel according to claim 5, wherein in the region where the through hole is formed, the wiring and the terminal wiring are connected by the bridge wiring. In the second seal portion, it has a plurality of second columnar spacers along the end portion of the facing substrate, and has a plurality of second columnar spacers.
The mother liquid crystal display panel according to claim 5, wherein the second columnar spacer is formed on the overcoat film and overlaps the color filter and the black matrix.

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