JP2002116448A - Liquid crystal display device and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new liquid crystal display device of high reliability and a method for manufacturing the device in which two electrode substrates with alignment films are adhered and fixed by using a photosetting resin composition without damaging the alignment films or without decreasing the alignment characteristics of the liquid crystal. SOLUTION: As the two electrode substrates with alignment films are laminated with a sealing material consisting of an acrylic and/or ene/thiol radical polymerization type photosetting resin composition, the composition is irradiated with light in a 350 to 500 nm wavelength region by using a cut filter or the like or irradiated with UV rays without limiting the wavelength by shielding the alignment film face with a mask material against the light so as to harden the composition to adhere and fix the electrode substrates with alignment films. Then a liquid crystal is sealed between the substrates to obtain an inexpensive liquid crystal display device of high reliability.

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 element used as a thin, lightweight, low power consumption display and a method of manufacturing the same.

[0002]

2. Description of the Related Art In recent years, liquid crystal display devices have been widely used in various fields as thin, lightweight, and low power consumption displays, and their use will be further increased in the future.

Generally, a liquid crystal display device having a structure in which liquid crystal is sealed between two electrode substrates with an alignment film is manufactured as follows. That is, as illustrated in FIGS. 1A and 1B, the two glass electrode substrates 2 each having an alignment film 1 (mainly made of polyimide) on the innermost side thereof are pressed, and the spacer 3 is pressed. The sealing material 4 is hardened and adhered while keeping a constant interval by the above, and the two substrates are fixed. Next, the liquid crystal 5 is injected through the injection port 6, and the injection port is sealed with a sealing material 7 so that the liquid crystal does not leak.

Conventionally, a thermosetting epoxy resin composition having excellent adhesiveness has been used as a sealing material for this type of liquid crystal display element. However, the heat curing time is 2 hours or more, which is unproductive.
There is a drawback in that the displacement of the two substrates and the variation in the gap become large due to the change in the viscosity of the sealing material due to the heating and the thermal deformation of the pressing jig.

On the other hand, Japanese Patent Application Laid-Open No.
-17729, JP-A-5-156230 and JP-A-8
As disclosed in, for example, Japanese Patent Application Laid-Open No. 19215, there has been proposed a method in which an ultraviolet-curable epoxy resin composition is selected as a sealant, cured by irradiating ultraviolet rays, and bonded and fixed to two substrates.

However, this method has a serious problem that the alignment film of the liquid crystal display element receiving the ultraviolet light near the sealing material is damaged and the alignment characteristics of the liquid crystal are impaired.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a high productivity and an alignment characteristic of a liquid crystal produced without damaging the alignment film. It is an object of the present invention to provide a good and new highly reliable liquid crystal display device and a method for manufacturing the same.

[0008]

Means for Solving the Problems In order to solve the above problems, the present inventors have conducted intensive studies. As a result, acrylic and / or ene / thiol radical polymerization type are provided on two electrode substrates with an alignment film. In a state where the sealing material made of the photocurable resin composition is sandwiched and overlapped, a wavelength of 35
The composition is cured by irradiating light of 0 nm to 500 nm or irradiating ultraviolet light which does not limit the wavelength by blocking the surface of the alignment film with a mask material and bonding the two electrode substrates with alignment film. By fixing the liquid crystal and sealing the liquid crystal between the substrates, a liquid crystal display element satisfying the above-mentioned problems was obtained, and the present invention has been achieved. In order to further enhance the adhesiveness between the substrates, it can be achieved by adding an adhesion promoter to the above-mentioned composition as a sealing material.

The light source used in the present invention has a wavelength of 500.
Mercury lamps, xenon lamps, metal halide lamps, and the like that generate a large amount of visible light and ultraviolet light of nm or less are useful. Light rays generated from these light sources may unnecessarily heat the liquid crystal display element or cause light deterioration of the liquid crystal. At the time of photo-curing of the above composition, a device is devised so that a light beam hits only the composition. The irradiation time is generally between 0.1 and 5 minutes. That is, if the time is shorter than 0.1 minute, the photocurability becomes insufficient, and the adhesiveness is poor. If the time is longer than 5 minutes, it is unproductive and disadvantageous.

Here, the wavelength of the light from the light source is 350
In short-wavelength light of less than 500 nm, the alignment film is damaged,
In the case of long-wavelength light of m or more, since the curing reaction is slow and unproductive, light having a wavelength of 350 nm to 500 nm is preferable.

As the irradiation method, ultraviolet light is irradiated through a cut filter (for blocking light having a wavelength of 350 nm or less). In addition, when the alignment film surface is light-shielded with a mask material such as a metal plate painted black to cure the composition and bond and fix the two electrode films with alignment film, directly without passing through a cut filter, UV light can be used.
The acrylic radical polymerization type photocurable resin composition used in the present invention is based on a (meth) acrylic resin to which a photosensitizer has been added, and is adhered to the composition for the purpose of improving the properties as necessary. Accelerators (silane coupling agents, etc.),
It is a material to which a filler and the like are added.

The (meth) acrylic resin is not particularly limited as long as it contains at least one (meth) acrylic group in one molecule and can be cured at a high speed by radical polymerization.

However, the molecular skeleton of the (meth) acrylic resin is preferably polyester, polyether, hydrocarbon, silicone or the like in order to improve the moisture proof property, adhesive property, incompatibility with liquid crystal and the like.

As the (meth) acrylic resin, those having (meth) acrylic groups attached to both ends of a molecular skeleton, for example, polyesters obtained from adipic acid and ethylene glycol, polyethylene glycol, bisphenol A
Examples thereof include di (meth) acrylates such as diglycidyl ether, poly-1, butadiene, and polydimethylsiloxane, hexanediol di (meth) acrylate, ethylene glycol di (meth) acrylate, and butanediol di (meth) acrylate.

Further, for the purpose of lowering the viscosity and adjusting the glass transition temperature, a (meth) acryl compound containing one (meth) acryl group in one molecule, for example, 2-ethylhexyl (meth) acrylate, 2-hydroxypropyl (Meth) acrylate, lauryl (meth) acrylate, decyl (meth) acrylate, benzyl (meth) acrylate, or the like may be used. In addition, 2-hydroxyethyl (meth) acrylate may be used for the purpose of improving adhesiveness.

The photosensitizer used in the present invention is not particularly limited as long as it undergoes photolysis or hydrogen abstraction reaction by light having a wavelength in the visible to ultraviolet range to generate radicals and initiate radical polymerization by (meth) acrylic groups. There is no.

Examples of the photosensitizer include benzoin ethers such as benzoin isopropyl ether;
Acetophenones such as diethoxyacetophenone,
1-hydroxycyclohexyl phenyl ketone, 2
-Hydroxy-2-methyl-1-phenylpropan-1-one, benzoin, benzophenones such as p-methoxybenzophenone, xanthones such as thioxanthone, m-chloroacetophenone, propiophenone, benzyl, 2-methylanthraquinone and the like Anthraquinones, benzyldimethyl ketal and the like are useful. The amount of photosensitizer used is (meth) acrylic resin 10
0.01 to 5 parts by weight is preferable with respect to 0 parts by weight. 0.0
When the amount is less than 1 part by weight, the photocurability of the (meth) acrylic resin composition is inferior, and when the amount is more than 5 parts by weight, the adhesiveness decreases.

The adhesion promoter improves adhesion properties of the resin composition according to the present invention. In addition to silane coupling agents and titanium coupling agents, polychloroprene, poly-1,4-butadiene, styrene -Butadiene copolymer, acrylonitrile-styrene-butadiene copolymer, graft copolymer of rubbers such as ethylene-propylene rubber and (meth) acrylic resin, and the like. The amount of the adhesion promoter used is (meth) acrylic resin 1
0.1 to 10 parts by weight is preferable with respect to 00 parts by weight. 0.
If the amount is less than 1 part by weight, the effect of promoting adhesion is not sufficiently exhibited.
If the amount is more than 10 parts by weight, the excess adhesion promoter in the (meth) acrylic resin composition flows into the liquid crystal layer, adversely affects the orientation of the liquid crystal, and lowers the glass transition temperature.

As the filler, silica, alumina, calcium carbonate and the like can be used in order to improve the coating properties of the resin composition according to the present invention, adjust the coefficient of thermal expansion and the like, and prevent solubility in liquid crystals. The amount of the filler used is preferably 5 to 100 parts by weight based on 100 parts by weight of the (meth) acrylic resin. If the amount is less than 5 parts by weight, the effect is insufficient, and
When the amount is more than the weight part, the adhesiveness of the cured product of the (meth) acrylic resin composition decreases.

The ene / thiol radical polymerization type photocurable resin composition used in the present invention is based on a polyene compound and a polythiol compound added with a photosensitizer, and if necessary, improves the characteristics. Adhesion promoter for the purpose of
(Such as a silane coupling agent) and a filler.

The polyene compound contains two or more carbon-carbon unsaturated double bonds (C = C) in one molecule, and the polythiol compound also contains two or more mercapto groups (-SH) in one molecule. There is no particular limitation on both compounds as long as both are cured at a high rate by radical polymerization. As polyene compounds, divinylbenzene, divinyltoluene,
Triallyl cyanurate, triallyl isocyanurate, tetraallyloxyethane, trimethylolpropane diallyl ether, trimethylolpropane triallyl ether, pentaerythritol diallyl ether, pentaerythritol triallyl ether, pentaerythritol tetraallyl ether, ethylene glycol di
(Meth) allyl ether, propylene glycol di (meth)
Allyl ether, butylene glycol di (meth) allyl ether, polyethylene glycol di (meth) allyl ether, polypropylene glycol di (meth) allyl ether, polybutylene glycol di (meth) allyl ether,
Di (meth) allyl ether of glycol which is a block or random copolymer of ethylene oxide and propylene oxide, di (meth) allyl ether of glycol which is a block or random copolymer of ethylene oxide and tetrahydrofuran, di (meth) allyl ether of bisphenol A And di (meth) allyl ether of (poly) ethylene oxide-modified bisphenol A and di (meth) allyl ether of (poly) propylene oxide-modified bisphenol A, but are not limited thereto. Further, a mixture of two or more of these may be used.

Examples of the polythiol compound include diglycol dimercaptan, triglycol dimercaptan, tetraglycol dimercaptan, thiodiglycol dimercaptan, thiotriglycol dimercaptan, thiotetraglycol dimercaptan, bisphenol A type epoxide, Examples include, but are not limited to, various polythiols obtained by reacting a general polyepoxide such as ethylene glycol diglycidyl ether with an excess of the above polythiol. Further, a mixture of two or more of these may be used.

The mixing ratio of the polyene compound and the polythiol compound used in the composition of the present invention is determined by the molar ratio of the carbon-carbon unsaturated double bond of the polyene to the mercapto group of the polythiol, and the ratio is 1: 1.5. １1.5: 1, preferably 1: 1.2-1.2: 1, most preferably approximately 1: 1. If the ratio is outside the above range, there may be a problem that an unpleasant odor is generated after curing, or the hardness of the cured product is too low.

The photosensitizer used in the present invention may be one used in the above-mentioned acrylic radical polymerization type photocurable resin composition. The amount of the photosensitizer used is 100 parts by weight of the total of the polyene compound and the polythiol compound. 0.01 to 5 parts by weight is preferred. When the amount is less than 0.01 part by weight, the photocurability of the ene / thiol resin composition is poor, and when the amount is more than 5 parts by weight, the adhesiveness is reduced.

The adhesion promoter for improving the adhesive properties of the resin composition may be the same as that used for the above-mentioned acrylic radical polymerization type photocurable resin composition, and may be a silane coupling agent or a titanium coupling agent. And graft copolymerization of rubbers such as polychloroprene, poly-1,4-butadiene, styrene / butadiene copolymer, acrylonitrile / styrene / butadiene copolymer, ethylene / propylene rubber and (meth) acrylic resin There are coalescence. The amount of the adhesion promoter used is 0.1 per 100 parts by weight of the total of the polyene compound and the polythiol compound.
-10 parts by weight is preferred. If the amount is less than 0.1 part by weight, the effect of promoting adhesion is not sufficiently exhibited. If the amount is more than 10 parts by weight, the excess adhesion promoter in the ene / thiol-based resin composition flows into the liquid crystal layer, adversely affects the orientation of the liquid crystal, and lowers the glass transition temperature.

A filler for improving the coating properties of the resin composition, controlling the coefficient of thermal expansion, etc., and preventing solubility in liquid crystals is also included.
It may be the same as that used for the acrylic radical polymerization type photocurable resin composition, and silica, alumina, calcium carbonate and the like can be used. The amount of the filler used is preferably 5 to 100 parts by weight based on 100 parts by weight of the total of the polyene compound and the polythiol compound. If the amount is less than 5 parts by weight, the effect is insufficient, and if the amount is more than 100 parts by weight,
The adhesion of the cured product of the ene / thiol resin composition is reduced.

Further, an antifoaming agent, a leveling agent, a polymerization inhibitor and the like may be added to the resin composition of the present invention, if necessary.

Hereinafter, an example of a method for producing a liquid crystal display device using the resin composition of the present invention will be described.

The resin composition of the present invention is applied onto one of the two electrode substrates with an alignment film so as to form a predetermined pattern with a liquid crystal injection port opened. The application method is generally a screen printing method, but may be applied using a dispenser. These two substrates,
The alignment films are overlapped with the respective alignment films facing inside, with the alignment being performed via a spacer. Thereafter, the two superimposed substrates are weighted and uniformly pressed by a press or the like to adjust the gap between the substrates to a desired interval. In this state, the resin composition is irradiated with light to be cured, and the two substrates are bonded and fixed. Finally, by injecting liquid crystal from the liquid crystal injection port, sealing the liquid crystal injection port and sealing the liquid crystal,
Make a liquid crystal display device.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.

The composition and composition No. of the photocurable resin composition of the sealing material used for bonding and fixing the two electrode substrates each having an alignment film.
Are shown in Table 1.

[0032]

[Table 1]

Here, compositions No. 1 to No. 6 are acrylic radical polymerization type photocurable resin compositions, and compositions No. 7 to No.
No. 12 shows an ene / thiol radical polymerization type photocurable resin composition, respectively.

As shown in FIG. 1, the above resin composition (sealant) was applied to one of the electrode substrates with an alignment film in a predetermined pattern 4 using a dispenser, and 6.3 μm After dispersing the bead-shaped spacer 3 having a diameter, the other electrode substrate provided with an alignment film was overlapped and pressed uniformly by a press until the gap thickness became 6 μm. In this press machine, one of the upper mold and the lower mold is made of light-transmitting glass or plastic, and the mold is passed through the mold.
It has a structure in which light is applied to the sealing material 4 between the substrates.

Next, while being pressed by a press, as shown in FIGS. 2 and 3, light was irradiated under predetermined conditions to cure the sealing material 4.

That is, FIG. 2 shows the wavelength 350n of the present invention.
As a cut filter 9 for blocking light of m or less, a color glass filter -UV-35 (manufactured by Toshiba Glass Co., Ltd.) is used, and the light from a light source 10 of a high-pressure mercury lamp is irradiated with light of a limited wavelength to obtain the resin composition. The method for photo-curing is shown below. FIG. 3 shows that the mask material 11 of the present invention has a thickness of about 2 mm.
A method of photo-curing the above resin composition by using a metal aluminum plate painted in black, light-blocking the alignment film surface, irradiating all the light from the light source 10 of the high-pressure mercury lamp without wavelength limitation, and curing the resin composition.

After curing as described above, the press mold was removed from the two substrates that were bonded and fixed.

Next, the biphenyl-based liquid crystal 5 was injected from the liquid crystal inlet 6, and the liquid crystal 5 attached to the periphery of the inlet 6 was wiped off, and immediately the sealing material was applied to the inlet. Thereafter, in the same manner as described above, light was irradiated using a cut filter to cure the sealing material and seal the injection port so as not to damage the alignment film, and the liquid crystal display element 8 was manufactured.

The liquid crystal display element 8 obtained as described above
FIG. 4 shows a method for evaluating the alignment characteristics of the polyimide-based alignment film 1 described above.

That is, the polarization directions of the two polarizing plates 12 are made orthogonal to each other, the liquid crystal display element 8 is sandwiched between them, one side is directed to the direction of the light 13, and the other is viewed with the eyes 14 from the other side.

When the light looks uniform without any alignment disorder,
This shows that the alignment film 1 of the liquid crystal display element 8 is not damaged and has good alignment characteristics.

On the other hand, when the light looks non-uniform, it indicates that the alignment film 1 is damaged and the alignment characteristics are poor.

As another characteristic, adhesiveness was determined. The presence or absence of peeling of the sealant is visually observed, and a liquid crystal display element in which peeling is not observed has good adhesiveness, and one in which peeling is observed indicates poor adhesiveness.

In addition, the alignment characteristics and the adhesiveness of the liquid crystal display element are determined not only in the initial stage but also in a high temperature storage test (60 ° C.).
℃, 1000 hours) and high temperature and high humidity test (70 ℃, 95% RH, 5
(00 hours).

Using the photocurable resin composition (sealant) having the composition shown in Table 1, curing conditions were changed and the above characteristics of the liquid crystal display device were examined. The results are shown in Table 2.

[0046]

[Table 2]

Here, for example, Example No. 1 is No.
Six types of resin compositions from No. 1 to No. 6 were separately provided with a cut filter and under light irradiation conditions of 100 mW / cm ² (wavelength 3
All the six types of liquid crystal display devices made in (65 nm) × 90 seconds are shown, and the characteristics of Example No. 1 in Table 2 are marked with “○” because the characteristics of all the six types of liquid crystal display devices are good. It indicates that there is.

From Table 2, it can be seen that Examples Nos. 1 to 6 have the initial alignment characteristics and adhesiveness of the liquid crystal display element, regardless of the light irradiation conditions, because of the presence of the cut filter or mask material of the present invention during photocuring. It turns out that both are good after the reliability test.

On the other hand, Comparative Examples Nos. 7 to 12 had good adhesiveness of the liquid crystal display element because of neither the cut filter nor the mask material of the present invention at the time of photocuring, but had poor alignment characteristics from the beginning. It can be seen that it is.

Further investigations were carried out, and Example No.
It became clear that the liquid crystal display elements of Nos. 1 to 6 were all good at the initial stage and after the reliability test, as well as other necessary characteristics such as electric characteristics.

[0051]

As described above, the liquid crystal display device manufactured according to the present invention eliminates the damage of the alignment film, which is a drawback of the prior art relating to the adhesion and fixing of two electrode substrates with the alignment film, and eliminates the alignment problem. An important function called characteristics has been greatly improved. By applying this, a low-cost and highly reliable liquid crystal display element can be manufactured.

[Brief description of the drawings]

FIG. 1 is a schematic view of a liquid crystal display device according to the present invention.

FIG. 2 is a view showing a resin composition curing method according to the present invention.

FIG. 3 is a view showing a method for curing a resin composition according to the present invention.

FIG. 4 is a diagram showing a method for evaluating the alignment characteristics of the liquid crystal display device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Orientation film, 2 ... Electrode substrate, 3 ... Spacer, 4 ... Sealing material, 5 ... Liquid crystal, 6 ... Injection port, 7 ... Sealing material, 8 ... Liquid crystal display element, 9 ... Cut filter, 10 ... Light source, 11 ... Mask material, 12 ... Polarizing plate (2 sheets), 13 ... Light (visible light, etc.), 1
4 ... Eye.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Ryoichi Sudo 292 Yoshidacho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture F-term in Hitachi, Ltd. Production Technology Research Laboratory F-term (reference) 2H089 MA04Y MA16Y NA24 NA38 NA39 NA44 NA48 NA60 PA16 QA12 QA13 QA14 RA05 TA02 TA04 4J011 QA03 QA11 QA12 QA13 QA19 QA20 QA26 QA27 QA40 QB19 QB20 QB25 SA07 SA16 SA32 SA34 SA42 SA52 SA61 SA63 SA64 UA01 UA06 5C058 AA06 AB03 AB05 BA32

Claims (14)

[Claims] A wavelength of 350 nm to 500 n is superposed on two electrode substrates with an alignment film with a sealing material made of an acrylic radical polymerization type photocurable resin composition sandwiched therebetween.
A liquid crystal display element and a method for manufacturing the same, characterized in that a liquid crystal is sealed between the above-mentioned two electrode substrates provided with an alignment film after irradiating light of m to cure the sealing material. 2. In a state in which a sealing material made of an acrylic radical polymerization type photocurable resin composition is sandwiched between two electrode substrates with an alignment film, the alignment film surface is shielded from light with a mask material, and ultraviolet light is applied. After irradiating light to light cure the seal material,
A liquid crystal display element and a method of manufacturing the same, wherein liquid crystal is sealed between the two electrode substrates with alignment films. 3. A cut filter (wavelength: 3) with two sealing substrates made of an acrylic radical polymerization type photocurable resin composition sandwiched between two electrode substrates with an alignment film.
(To block light of 50 nm or less), and then the sealing material is photo-cured by irradiation with ultraviolet light.
A liquid crystal display element characterized by sealing a liquid crystal between a plurality of electrode substrates with an alignment film and a method of manufacturing the same. 4. A wavelength range of 350 nm to 5 nm in a state in which a sealing material made of an ene / thiol radical polymerization type photocurable resin composition is sandwiched between two electrode substrates with an alignment film.
A liquid crystal display device and a method of manufacturing the same, characterized in that a liquid crystal is sealed between the above-mentioned two electrode substrates provided with an alignment film after irradiating light of 00 nm to photo-cure the sealing material. 5. A film having a wavelength of 350 nm to 500 nm in a state where a sealing material made of an acrylic-based and ene / thiol-based mixed radical polymerization type photocurable resin composition is sandwiched between two electrode substrates with an alignment film. A liquid crystal display element and a method of manufacturing the same, characterized in that a liquid crystal is sealed between the above-mentioned two electrode substrates with an alignment film after irradiating light to cure the sealant with light. 6. A film having a wavelength of 350 nm to 500 nm in a state where two electrode substrates with an alignment film are overlapped with a sealing material made of an acrylic radical polymerization type photocurable resin composition containing an adhesion promoter interposed therebetween. A liquid crystal display element and a method of manufacturing the liquid crystal display element, characterized in that a liquid crystal is sealed between the above-mentioned two electrode substrates with an alignment film after light irradiation is performed to harden the sealing material. 7. A two-layered electrode substrate with an alignment film, with a sealing material made of an ene / thiol radical polymerization type photocurable resin composition containing an adhesion promoter interposed therebetween, with a wavelength of 350 nm to A liquid crystal display element and a method of manufacturing the liquid crystal display element, characterized in that a liquid crystal is sealed between the two electrode substrates with an alignment film after irradiating light of 500 nm to light cure the sealing material. 8. A two-layered electrode substrate with an alignment film sandwiched by a sealing material comprising an acrylic and ene / thiol-based mixed radical polymerization type photocurable resin composition containing an adhesion promoter, and superposed on each other. , Wavelength 350 nm to 500 nm
A liquid crystal is sealed between the above-mentioned two electrode substrates provided with an alignment film, and a method of manufacturing the liquid crystal display device. 9. In a state in which a sealing material made of an en / thiol-based radical polymerization type photocurable resin composition is sandwiched between two electrode substrates provided with an alignment film, the alignment film surface is shielded from light with a mask material. A liquid crystal display element and a method of manufacturing the liquid crystal display element, characterized in that a liquid crystal is sealed between the above-mentioned two electrode substrates with an alignment film after irradiating ultraviolet light to cure the sealing material. 10. A mask for an alignment film surface in a state where two electrode substrates with an alignment film are overlapped with a sealing material made of an acrylic-based and ene / thiol-based mixed radical polymerization type photocurable resin composition sandwiched therebetween. A liquid crystal display element and a method of manufacturing the same, characterized in that a liquid crystal is sealed between the above-mentioned two electrode substrates with an alignment film after the light is blocked by a material and the sealing material is photocured by irradiating ultraviolet light. 11. A two-layered electrode substrate with an alignment film sandwiched by a sealing material comprising an acrylic and ene / thiol-based mixed radical polymerization type photocurable resin composition containing an adhesion promoter, and superposed on each other. After blocking the alignment film surface with a mask material and irradiating ultraviolet light to light cure the seal material,
A liquid crystal display element and a method of manufacturing the same, wherein liquid crystal is sealed between the two electrode substrates with alignment films. 12. A cut filter (which blocks light having a wavelength of 350 nm or less) in a state in which a sealing material made of an ene / thiol radical polymerization type photocurable resin composition is sandwiched between two electrode substrates with an alignment film. Irradiating ultraviolet light that has passed through, and light-curing the sealing material,
A liquid crystal display element and a method of manufacturing the same, wherein liquid crystal is sealed between the two electrode substrates with alignment films. 13. A cut filter (with a wavelength of 350 nm) in a state in which a sealing material made of an acrylic-based and ene / thiol-based mixed radical polymerization type photocurable resin composition is sandwiched between two electrode substrates with an alignment film. Liquid crystal is sealed between the two electrode substrates with an alignment film after the sealing material is photo-cured by irradiating ultraviolet light passed therethrough for blocking the following light). Liquid crystal display device and manufacturing method thereof. 14. A two-layered electrode substrate with an alignment film sandwiched by a sealing material comprising an acrylic and ene / thiol-based mixed radical polymerization type photocurable resin composition containing an adhesion promoter, and superposed on each other. , Cut filter (wavelength 3
(To block light of 50 nm or less), and then the sealing material is photo-cured by irradiation with ultraviolet light.
A liquid crystal display element characterized by sealing a liquid crystal between a plurality of electrode substrates with an alignment film and a method of manufacturing the same.