JPH10268285A - Liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the adhesive strength of seal resin and to obtain high reliability by allowing the peripheral edge part of the seal resin and a graphic matrix layer to have an area not overlapped with each other in the normal direction of a substrate surface. SOLUTION: Relating to a color filter substrate 1 a BM layer 4 is formed on a glass substrate and the colored layer of red, blue, and green, an overcoat layer of polyimide resin, a transparent electrode of ITO, and an orientation film are formed thereupon in order. The color filter substrate 1 on which the seal resin 9 is printed after being put on a TFT substrate 2 so that its orientation film faces its orientation film, is stuck and heated under a pressure, so that they are brought into contact with each other. Then liquid crystal is injected under a vacuum and the sealing hole is sealed to complete a liquid crystal cell. When the seal resin 9 is applied, the outer peripheral frame part of the BM layer 4 is half coated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device used for a word processor, a personal computer, an engineering workstation, a PDA (personal digital assistant), a car navigation system, a liquid crystal television, a video, and the like. The present invention relates to a liquid crystal display device having excellent performance.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 1, a color filter comprising a resin black matrix (hereinafter referred to as a resin BM) has a sealing resin 9 and a peripheral frame portion of a BM layer 4 when viewed from the normal direction of the substrate surface. In most cases, the layers are formed so as to overlap each other.

However, particularly when the overcoat layer 6 made of an acrylic resin, a polyimide resin or the like is not formed on the BM layer 4, the influence of the pigment residue on the outer frame portion of the BM layer 4, the surface roughness, and the like. In some cases, the adhesiveness was significantly impaired.

If there is a portion where the adhesion between the glass substrate 3 and the BM layer 4 is insufficient locally, the glass substrate 3
There was also a problem that the seal was easily peeled off at the interface of the M layer 4.

[0005] The resin BM manufactured with the above-mentioned sealing structure
In a liquid crystal display device using, there is a case where a seal is peeled off in a manufacturing process to cause a liquid crystal leak, thereby lowering a process yield. In addition, the completed liquid crystal display device,
When subjected to a forced deterioration test in which treatment is performed for a certain period of time in a high-temperature, high-humidity, or high-pressure atmosphere, bubbles enter the liquid crystal display device through the seal portion with reduced adhesion strength, and the bubbles are generated in the display device. Phenomenon such as reaching inside. Furthermore, the air bubbles may not disappear even after returning to normal temperature and normal pressure, causing a problem related to the reliability of maintaining the sealing of the liquid crystal in various use environments.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the prior art by improving the adhesion of the sealing resin and providing a highly reliable liquid crystal display device.

[0007]

To solve the above-mentioned problems, the present invention has the following arrangement.

(1) A liquid crystal is sandwiched between a pair of substrates,
A liquid crystal in which pixel electrodes arranged in a matrix and switching elements for driving each pixel electrode are formed on one substrate, and a black matrix layer made of black resin is formed on the other substrate. In the display device, the sealing resin for sealing the periphery of the liquid crystal display device and holding the liquid crystal and the peripheral frame portion of the black matrix layer have a non-overlapping region in the normal direction of the substrate surface. Liquid crystal display device.

(2) The seal resin is formed outside the peripheral frame portion of the black matrix layer (1).
3. The liquid crystal display device according to 1.

(3) The liquid crystal display device according to claim 1, wherein the liquid crystal display device has a region where the sealing resin and the black matrix layer partially overlap.

(4) The liquid crystal display device according to (1), wherein a slit is formed in a peripheral frame portion of the black matrix layer.

(5) an overcoat film between the seal resin and each of the substrates on which the black matrix layer is formed;
The liquid crystal display device according to any one of (1) to (4), wherein at least one of a transparent electrode and an alignment film is present.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail.

The pair of substrates used in the present invention include a transparent electrode substrate on which pixel electrodes arranged in a matrix and switching elements for driving each pixel electrode are formed, and a BM layer made of black resin. Consisting of a filter substrate.

As the transparent substrate used in the present invention, quartz glass, borosilicate glass, aluminosilicate glass, inorganic glass such as soda lime glass having a silica-coated surface, and organic plastic films or sheets are preferably used. Is not particularly limited.

As the transparent electrode substrate, ITO (Indi) is used.
A transparent electrode such as a um Tin Oxide film is provided in a pattern on a transparent substrate. On a transparent electrode substrate, in addition to a transparent electrode, a thin film transistor (TFT) element, a thin film diode (TFD) element, a scanning line, a signal line, and the like are provided, so that a TFT liquid crystal display device or a TFD liquid crystal display device can be manufactured. . An alignment film is provided on the filter substrate having a transparent electrode and the transparent electrode substrate, and an alignment process such as rubbing is performed.

The BM formed on the filter substrate indicates a light shielding area arranged between the pixels, and is provided mainly for improving the display contrast of the liquid crystal display device.

The resin used for the resin BM is not particularly limited, but may be a photosensitive or non-photosensitive resin such as an epoxy resin, an acrylic resin, a urethane resin, a polyester resin, a polyimide resin, a polyolefin resin, and gelatin. Is preferably used. The BM resin is preferably a resin having higher heat resistance than the resin used for the pixel and the protective film, and a polyimide resin because a resin having resistance to an organic solvent used in a process after the formation of the resin BM is preferable. Is particularly preferably used.

As a light-shielding agent for BM, a mixture of red, blue, and green pigments in addition to metal oxide powders such as carbon black, titanium oxide, and iron tetroxide, metal sulfide powders and metal powders are used. be able to. Among them, carbon black is particularly preferable because of its excellent light shielding properties. Since carbon black having a good dispersion and a small particle diameter mainly exhibits a brownish color tone, it is preferable to mix a pigment of a complementary color to the carbon black to obtain an achromatic color.

When the resin for BM is polyimide, the black paste solvent is usually an amide polar solvent such as N-methyl-2-pyrrolidone, N, N-dimethylacetamide, N, N-dimethylformamide, γ- Lactone-based polar solvents such as butyrolactone are preferably used.

As a method of dispersing a light-shielding agent such as a complementary color pigment or the like in carbon black or carbon black, for example, after mixing a light-shielding agent or a dispersant in a polyimide precursor solution, a three-roll mill, a sand grinder or the like is used. And a method of dispersing in a dispersing machine such as a ball mill, but the method is not particularly limited. In addition, various additives may be added for improving the dispersibility of carbon black, or for improving applicability and leveling property.

As a method for producing the resin BM, a black paste is applied on a transparent substrate, dried, and then patterned. As a method for applying the black paste, a dip method, a roll coater method, a spinner method, a die coating method, a method using a wire bar, and the like are suitably used. After that, heat drying (semi-curing) using an oven or a hot plate is performed. Do. The semi-cure condition depends on the resin used,
Although it depends on the solvent and the amount of paste applied, usually 50 to 20
It is preferable to heat at 0 ° C. for 1 to 60 minutes.

In the case where the resin is a non-photosensitive resin, the black paste coating thus obtained is formed after a positive photoresist coating is formed thereon, and then the resin is a photosensitive resin. In some cases, exposure and development are performed as they are or after forming an oxygen barrier film. If necessary, remove the positive photoresist or oxygen barrier film,
Further, it is heated and dried (this cure). The curing conditions are as follows when obtaining a polyimide resin from a polyimide precursor.
It varies slightly depending on the amount of coating,
Heating for up to 60 minutes is preferred. Through the above process, the BM is formed on the transparent substrate.

When the liquid crystal display device of the present invention is used as a color liquid crystal display device, a liquid crystal display device is provided on a substrate provided with the BM layer.
Construct a color filter.

For the color layer of this color filter, three primary colors of red (R), green (G) and blue (B) are selected.
Generally, a picture element for color display can be formed by using an element including these three primary colors as one unit. The coloring layer is not particularly limited as long as its refractive index is higher than that of the transparent substrate. For example, a resin colored with a coloring agent is preferably used.

The colorant used in the color layer is not particularly limited, and organic pigments, inorganic pigments, dyes and the like can be suitably used. Further, various additives such as an ultraviolet absorber, a dispersant, and a leveling agent can be used. An agent may be added. As the organic pigment, phthalocyanine-based, aziraki-based, condensed azo-based, quinacridone-based, anthraquinone-based, perylene-based, and perinone-based pigments are preferably used.

The resin used for the colored layer is preferably a photosensitive or non-photosensitive material such as an epoxy resin, an acrylic resin, a urethane resin, a polyester resin, a polyimide resin, a polyolefin resin, and gelatin. It is preferable to disperse or dissolve the colorant in these resins for coloring. As the photosensitive resin, there are types such as a photodecomposable resin, a photocrosslinkable resin, and a photopolymerizable resin, and particularly, a monomer, an oligomer or a polymer having an ethylenically unsaturated bond and an initiator which generates a radical by ultraviolet rays. A photosensitive composition containing, a photosensitive polyamic acid composition and the like are suitably used.

As the non-photosensitive resin, those which can be developed with the above-mentioned various polymers are preferably used. However, the non-photosensitive resin should be able to withstand the heat in the process of forming the transparent conductive film and the process of manufacturing the liquid crystal display device. A resin having excellent heat resistance is preferable, and a resin having resistance to an organic solvent used in a manufacturing process of a liquid crystal display device is preferable. Therefore, a polyimide resin is particularly preferably used.

As a method of forming a colored layer, a colored paste is applied to a substrate on which the resin BM is formed, dried, and then patterned. As a method of obtaining a colored paste by dispersing or dissolving a colorant, a resin and a colorant are mixed in a solvent, and then, three rolls, a sand grinder,
Although there is a method of dispersing in a dispersing machine such as a ball mill, there is no particular limitation to these methods.

As a method for applying the colored paste, a dipping method, a roll coater method, a spinner method, a die coating method, a method using a wire bar, and the like are preferably used, as in the case of the black paste. Heat drying (semi-cure) is performed using a plate.
The semi-curing conditions vary depending on the resin used, the solvent, and the amount of the paste applied, but it is usually preferable to heat at 60 to 200 ° C. for 1 to 60 minutes.

In the case where the resin is a non-photosensitive resin, the colored paste film thus obtained is formed after a positive photoresist film is formed thereon, and then the resin is a photosensitive resin. In some cases, exposure and development are performed as they are or after forming an oxygen barrier film. If necessary, remove the positive photoresist or oxygen barrier film,
Again, heat and dry (this cure). The curing conditions are different depending on the resin. However, when a polyimide resin is obtained from a polyimide precursor, it is usually 200 to 300 ° C. and 1 to 60.
It is common to heat for a minute. Through the above process,
A patterned colored layer is formed on the substrate on which the BM has been formed.

Then, if necessary, a protective film and a paint containing no coloring agent are applied on the red, green and blue fine patterns for the purpose of improving smoothness, and then heated and fired at about 200 to 350 ° C. May be formed. Further, a transparent electrode and an alignment film may be appropriately provided.

When a coloring layer and an overcoat layer are provided,
The film thickness is not particularly limited, but is 0.5
To 3.0 μm, 0.05 to overcoat layer
2.0 μm is desirable. The coating method of the paint for forming the coating film of the overcoat layer is a spin coating method such as a spinner,
A dip coating method, a curtain flow coating method, a roll coater method, or the like is used. As a method of heating the coating film, there are a hot plate, a hot air oven and the like.

After spraying plastic beads as a spacer between the pair of substrates, the filter substrate and the transparent electrode plate are bonded together using a sealant, and liquid crystal is injected from an injection port provided in the seal portion. Seal the inlet. When the spacer is formed on the filter substrate by laminating the BM layer and the coloring layer, the step of dispersing the plastic beads is omitted. After attaching a polarizing plate to the outside of the substrate thereon and mounting an IC driver or the like, a module of the liquid crystal display device is completed.

The sealing resin used is not particularly limited, but it is common to use a sealing agent made of an epoxy resin. For example, there are Struct Bond manufactured by Mitsui Toatsu Chemicals, Inc., and FC Hardware manufactured by Shikoku Chemicals Co., Ltd.

The method of applying the seal resin includes a method of dispensing the seal resin at a position designated in advance by a dispenser, a method of printing by screen printing, and the like.

The cause of the insufficient adhesion of the sealing portion is that the adhesion between the sealing resin and the outer peripheral frame of the BM layer is insufficient, the adhesion between the BM layer and the glass substrate is insufficient, and that the sealing resin is insufficient. There are various cases such as when the adhesion of the BM itself or the BM itself is insufficient.

Among these, when the adhesion between the sealing resin and the outer peripheral frame of the BM layer, the adhesion between the BM layer and the glass substrate, and the adhesion between the BM itself and the like are insufficient, the sealing resin and the BM can be used. If the outer peripheral frame portion is in a position where the substrate surface is completely overlapped when viewed from the normal direction, the strength of the sealing portion of the liquid crystal cell will be extremely reduced.

In view of this, the position of the sealing resin is such that the whole or a part thereof does not directly or overlap the outer peripheral frame of the BM layer when viewed from the normal direction of the substrate. Due to the strong adhesion of the part to be sealed, the adhesion of the entire sealing part can be improved.

Further, when a portion composed of at least one of an overcoat film, a transparent electrode, and an alignment film is provided between the seal resin and the substrate on which the BM layer is formed, When the position is viewed from the normal direction of the substrate, even if the whole or part does not directly overlap the outer peripheral frame portion of the BM layer, the sealing resin is located on the glass substrate without the BM, and In the same manner as when strong contact can be obtained at a portion in direct contact, it is possible to improve the adherence of the entire sealing portion.

Here, when the position of the sealing resin and the BM layer is viewed from the normal direction of the substrate, the whole or a part does not directly overlap the outer peripheral frame portion of the BM layer. There are a method of applying the seal resin halfway, a method of applying the seal resin to the outer periphery of the frame portion, a method of forming a slit in the frame portion and applying the seal resin thereon, and the like, but not particularly limited thereto.

In the liquid crystal display device having such a configuration of the seal resin and the outer peripheral frame portion of the BM layer, a decrease in yield due to peeling of the seal in the manufacturing process can be reduced. In addition, high temperature, high humidity,
It is possible to provide a liquid crystal display device which is excellent in long-term reliability such that bubbles are not generated in a panel even when subjected to a reliability test such as a forced deterioration test in which treatment is performed for a certain time in a high-pressure atmosphere.

[0043]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings, but the effects of the present invention are not limited thereto.

Further, the forced deterioration test, which is performed for a certain period of time in a high-temperature, high-humidity, high-pressure atmosphere for reliability evaluation, is performed by a method called a PCT test (pressure cooker test). 2.1atm, 1
The treatment was performed in a 00% saturated steam atmosphere, and the amount of generated bubbles and the leakage of liquid crystal at each treatment time were evaluated.

Embodiment 1 FIG. 2 shows a configuration of a BM layer, a display area, and a sealing resin on a color filter substrate in Embodiment 1 of the present invention. In the color filter substrate 1, a BM layer 4 is formed on a glass substrate 3, on which a colored layer 5 made of red, blue, and green, an overcoat layer film 6 made of a polyimide resin, a transparent electrode 7 made of ITO, The film 8 is formed in order. When the substrate surface is viewed from the normal direction, approximately half of the sealing resin is formed at a position overlapping the outer peripheral frame of the BM layer 4.

The color filter substrate 1 on which the sealing resin is printed is laminated so that the TFT substrate 2 and the alignment film 8 are opposed to each other, then adhered, and adhered by heating under pressure. Thereafter, after injecting the liquid crystal under vacuum, the injection hole is sealed to complete the liquid crystal cell.

A method of manufacturing a color filter according to this embodiment will be described below.

Glass substrate (Corning, 1737 material)
A coating solution obtained by dispersing carbon black in an N-methyl-2-pyrrolidone / butyl cellosolve solution of a polyamic acid, which is a polyimide precursor, is applied by a curtain flow coater so that the finished film thickness is 1.2 μm, and is applied by a hot plate. After drying at 130 ° C. for 10 minutes, a black resin coating film was formed. Thereafter, a positive type photoresist (SRC-100 manufactured by Shipley Co., Ltd.) was applied using a reverse roll coater.
Prebake on a hot plate at 100 ° C for 5 minutes, irradiate with 100mj / cm2 ultraviolet rays using an ultra-high pressure mercury lamp and expose the mask, and then use 2.25% aqueous solution of tetramethylammonium hydroxide to develop photoresist and apply resin. The film was simultaneously etched to form a pattern, the resist was peeled off with methyl cellosolve acetate, and imidized by heating at 300 ° C. for 10 minutes on a hot plate to form a BM layer.

Next, a N-methyl-2-pyrrolidone / butyl cellosolve solution of polyamic acid in which a dianthraquinone red pigment is dispersed is applied onto the BM layer so as to have a finished film thickness of 1.2 μm. And dried on a hot plate at 130 ° C. for 10 minutes to form a red resin coating film. Thereafter, a positive photoresist (SRC-100, manufactured by Shipley Co.) was applied by a reverse roll coater, prebaked on a hot plate at 100 ° C. for 5 minutes, and irradiated with ultraviolet rays at 100 mj / cm 2 using an ultra-high pressure mercury lamp. Using a 2.25% aqueous solution of tetramethylammonium hydroxide to simultaneously develop the photoresist and etch the resin coating,
A pattern was formed, the resist was stripped with methyl cellosolve acetate, and imidized by heating at 300 ° C. for 10 minutes on a hot plate to form a red colored layer.

Next, an N-methyl-2-pyrrolidone / butyl cellosolve solution of a polyamic acid in which a phthalocyanine green pigment is dispersed is applied and patterned in the same manner as described above on a substrate having a red colored layer formed on a BM. A colored layer was formed. Further, an N-methyl-2-pyrrolidone / butyl cellosolve solution of polyamic acid in which a phthalocyanine blue pigment is dispersed is applied and patterned in the same manner on a substrate having a red and green colored layer formed on a BM, and a blue colored layer is formed. Was formed.

A N-methyl-2-pyrrolidone / butyl cellosolve solution of polyamic acid is applied to the substrate having a red, green and blue colored layer formed on the BM layer by a spinan coater to a final thickness of 1.0 μm. And dried on a hot plate at 150 ° C for 3 minutes.
The coating was heated at 00 ° C. for 10 minutes to form an overcoat layer. Thereafter, ITO was formed into a mask by sputtering to a thickness of 1400 ° to obtain a color filter substrate.

Next, a method of manufacturing the liquid crystal display device according to this embodiment will be described.

After the color filter substrate was washed with a neutral detergent, an orientation film made of a polyimide resin was applied by a printing method so as to have a finished film thickness of 0.07 μm, and baked on a hot plate at 250 ° C. for 10 minutes. Thereafter, the color filter substrate is subjected to a rubbing treatment, a sealant is applied by a dispense method, and baked on a hot plate at 90 ° C. for 10 minutes. When dispensing the sealant, the seal resin was applied so as to cover the outer peripheral frame of the BM layer in half.

On the other hand, a substrate in which a TFT array is formed on a Corning glass substrate 1737 is similarly washed, and then an alignment film is applied and baked. After that, spray the spacer,
The resin is superposed on the color filter substrate and baked at 160 ° C. for 90 minutes while pressurizing in an oven to cure the resin. After vacuum annealing the cell at 150 ° C. and 10 −3 torr, the pressure was once returned to normal pressure in a nitrogen atmosphere, and liquid crystal was injected again in the vacuum atmosphere. The liquid crystal injection was performed by putting the cell in a chamber and reducing the pressure to 10 -3 torr at room temperature, immersing the liquid crystal injection hole in the liquid crystal tank, and returning the pressure to normal pressure using nitrogen. After injecting the liquid crystal, the liquid crystal injection hole was sealed using a UV curable resin.
The panel was heated to a temperature equal to or higher than the NI transition point to reorient the liquid crystal.

Next, a polarizing plate was attached to the two glass substrates of the cell, and the temperature was 50 ° C. and the pressure was 5 kg in an autoclave.
The cell was completed under the condition of f / cm 2. Thereafter, when the liquid crystal cell was observed, no leakage of liquid crystal or bubbles in the cell was observed.

The three cells created as described above are
As a result of the T test, no bubbles were observed even after 50 hours had passed.

Embodiment 2 Next, another embodiment of the present invention is shown in FIG. When the substrate surface is viewed from the normal direction, the sealing resin is located further outside the outer peripheral frame of the BM layer, and is formed so as not to overlap the frame of the BM layer at all.

The application of the sealing resin to the color filter substrate is performed by a screen printing method or a method of directly applying the sealing resin to the substrate. The application position of the seal resin is determined by the pattern of the screen plate used for printing in the case of the screen printing method, or by setting the dispense position in the case of directly dispensing. The method for manufacturing a color filter substrate and the method for manufacturing a liquid crystal display device according to the present embodiment are described in Embodiment 1.
In the same manner as described above, the sealing position was changed by setting the sealing resin application position further outside the BM outer peripheral frame portion at the time of manufacturing the cell.

Embodiment 3 Next, another embodiment of the present invention will be described with reference to FIG.
In this embodiment, a slit is formed in the outer peripheral frame of the BM layer of the substrate 2 to create a region that does not overlap with the BM layer when the sealing resin is viewed from the normal direction of the substrate surface. The slits were formed by using a photomask having a slit in the outer peripheral frame for mask exposure during BM processing during the production of the color filter. At this time, the slit width was 0.5 mm. The method for manufacturing the color filter substrate and the method for manufacturing the liquid crystal display device in this embodiment are the same as those described in the first embodiment.

COMPARATIVE EXAMPLE 1 Using a color filter prepared in the same manner as in Example 1, when the sealing resin is viewed from the normal direction to the substrate surface, B
Ten liquid crystal cells prepared in the same manner as in Example 1 except that the liquid crystal cell was applied so as to completely overlap the outer peripheral frame portion of the M layer were evaluated by a PCT test under the same conditions. Five bubbles were generated after 30 hours, and seven bubbles were generated after 50 hours.

Example 4 The outer peripheral portion of the outer peripheral frame of the color filter used in Comparative Example 1 was cut off with a cutter knife, and a liquid crystal display device was prepared in the same manner and under the same conditions as in Comparative Example 1. The sealing resin of the liquid crystal display device manufactured by this method is:
When the substrate surface is viewed from the normal direction, it is located at a position where the outer peripheral frame of the BM layer is shaved, and the sealing resin does not overlap the outer peripheral frame. As a result of evaluation of the three liquid crystal display devices by a PCT test under the same conditions as in Comparative Example 1, no bubbles were generated even after 30 hours.

[0062]

As described above, according to the present invention, the sealing structure around the liquid crystal display device can be strongly strengthened, and the occurrence of peeling of the seal in the manufacturing process of the liquid crystal display device can be greatly suppressed. In addition, even when this liquid crystal display device is subjected to a reliability test such as a PCT test, it is possible to prevent bubbles from entering the seal portion and generating bubbles in the display portion, and the liquid crystal display device has extremely high reliability. A display device can be easily provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a conventional liquid crystal display device.

FIG. 2 is a cross-sectional view of the liquid crystal display device according to the first embodiment of the present invention.

FIG. 3 is a sectional view of a liquid crystal display device according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a liquid crystal display device according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Color filter substrate 2 ... TFT substrate 3 ... Glass substrate 4 ... BM layer 5 ... Coloring layer 51 ... R layer 52 ... G layer 53 ... B layer 6 ... overcoat layer 7 ... transparent electrode 8 ... alignment film 9 ... sealing resin 10 ... TFT array 11 ... spacer 12 ... liquid crystal layer

Claims (5)

[Claims] 1. A liquid crystal is sandwiched between a pair of substrates. Pixel electrodes arranged in a matrix and switching elements for driving each pixel electrode are formed on one substrate, and the other substrate is formed on one substrate. In a liquid crystal display device in which a black matrix layer composed of a black resin is formed, a sealing resin for sealing around the liquid crystal display device and holding a liquid crystal and a peripheral frame portion of the black matrix layer are formed on a substrate. A liquid crystal display device having a non-overlapping region in a direction normal to a surface. 2. The liquid crystal display device according to claim 1, wherein the sealing resin is formed outside the peripheral frame portion of the black matrix layer. 3. The liquid crystal display device according to claim 1, wherein the liquid crystal display device has a region where the sealing resin and the black matrix layer partially overlap. 4. The liquid crystal display device according to claim 1, wherein a slit is formed in a peripheral frame portion of the black matrix layer. 5. The method according to claim 1, wherein at least one of an overcoat film, a transparent electrode, and an alignment film exists between the sealing resin and each of the substrates on which the black matrix layer is formed. Liquid crystal display device.