JP2002275343A - Black photosensitive resin composition, black coating film and black matrix base plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a black photosensitive resin composition which can stably form a black coating film of a high volume resistance, a black matrix base plate provided with a black matrix of a high volume resistance, and a black coating film of a high volume resistance. SOLUTION: The black photosensitive resin composition contains at least a pigment, a binder component and a solvent, wherein the pigment comprises mainly titanium black particles of a mean particle diameter of 200 nm or smaller, having a thin oxide film on the surfaces, and the binder component contains a carboxylated epoxidized acrylate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a black coating having a high volume resistance, a black matrix substrate provided with a black matrix having a high volume resistance, and a black photosensitive resin composition for forming a coating having a high volume resistance. .

[0002]

2. Description of the Related Art In recent years, color liquid crystal display devices have attracted attention as flat displays. As an example of a color liquid crystal display device, a color including a black matrix, a colored layer composed of a plurality of colors (usually three primary colors of red (R), green (G), and blue (B)), a common transparent electrode layer, and an alignment layer A transmissive liquid crystal display in which a filter and a counter electrode substrate provided with a thin film transistor (TFT element), a pixel electrode and an alignment layer face each other with a predetermined gap therebetween, and a liquid crystal material is injected into the gap to form a liquid crystal layer. There is a device. There is also a reflection type liquid crystal display device in which a reflection layer is provided between the color filter substrate and the coloring layer.

[0003] In such a color liquid crystal display device, R, G, and B are used in order to improve a coloring effect and a display contrast.
A black matrix is provided at the boundary between pixels. Conventionally, as a black matrix, Cr,
There were a metal black matrix formed by patterning a metal deposited thin film of Al, Ni or the like, and a resin black matrix formed by using a photosensitive resin composition in which a black pigment was dispersed. However, IPS (In-Plane) which has been attracting attention in recent years
Switching) In the liquid crystal mode, a high volume resistance of 10 ⁵ Ωcm or more is required for a black matrix of a color filter, and a resin black matrix having a high volume resistance is required. Further, in the above counter electrode substrate,
In order to suppress the occurrence of light leakage current in the TFT element, the TFT element is shielded from light by a black coating. This black coating is also required to have high volume resistance in addition to light-shielding properties.

[0004]

Conventionally, as a resin composition for forming a black coating such as a resin black matrix, there is a photosensitive resin composition containing carbon black (Japanese Patent Laid-Open No. 4-63870). issue). However, the resin composition film formed using, because there is carbon black therein, it is difficult to obtain a 10 ⁵ [Omega] cm or more high volume resistivity.

Japanese Patent Application Laid-Open No. 1-141963 discloses a coating composition using a titanium oxide or oxynitride having a volume resistivity of 10 ⁵ Ωcm or more. However, it is difficult to obtain titanium oxides and oxynitrides having a volume resistivity of 10 ⁵ Ωcm or more. For example, a thin film required for a color filter has a problem that a desired optical density cannot be obtained.

Further, in order to form a high-definition pattern of a black matrix or a black coating, it is necessary to atomize the pigment contained in the resin composition. For example, when titanium black is atomized and dispersed, After adding a binder component to make a resin composition, it gels,
There has been a problem that the stability over time tends to be remarkably deteriorated and cannot be used for pattern formation. Further, Japanese Unexamined Patent Publication No.
No. 59240 discloses a titanium black provided with a gas barrier thin film on its surface, which is intended to prevent oxidation (whitening) of titanium black in a high-temperature oxidizing atmosphere of 300 ° C. or more. However, even if the titanium black disclosed herein is used as it is, the above problem is not solved.

The present invention has been made in view of the above-mentioned circumstances, and provides a black photosensitive resin composition capable of stably forming a black film having a high volume resistance, and a black matrix having a high volume resistance. It is an object to provide a black matrix substrate provided with a black coating film having high volume resistance.

[0008]

Means for Solving the Problems In order to achieve the above object, the black photosensitive resin composition of the present invention is a black photosensitive resin composition containing at least a pigment, a binder component and a solvent. The pigment was composed mainly of titanium black particles having an average particle diameter of 200 nm or less and having an oxide thin film on the surface, and the binder component contained epoxy acrylate having a carboxyl group. Also,
The black photosensitive resin composition of the present invention was configured such that the oxide thin film was contained in a range of 5 to 15 parts by weight based on 100 parts by weight of titanium black particles. Further, the black photosensitive resin composition of the present invention is configured to contain a dispersant having an acid value and an amine value.

The black coating of the present invention has such a structure that it is formed using the above-mentioned black photosensitive resin composition. The black matrix substrate of the present invention includes a transparent substrate and a black matrix provided on the transparent substrate, wherein the black matrix is formed using the above-described black photosensitive resin composition. did. In the above-described present invention, the oxide thin film covering the titanium black particles functions to prevent aggregation of the titanium black particles.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below. Black photosensitive resin composition The black photosensitive resin composition of the present invention contains at least a pigment, a binder component, and a solvent, and the pigment is mainly composed of titanium black particles having an oxide thin film on the surface, and the binder component is epoxy. It contains acrylate.

[0011] The above titanium black particles, which volume resistivity is made of 10 ^-1 Ωcm~10 ⁴ Ωcm as low order titanium oxide (indicated by the general formula Ti _n O _2n-1), the average particle size 200 nm or less, preferably 100 to 200 n
m. If the average particle size exceeds 200 nm, it is difficult to form a fine line pattern, which is not preferable. The content of the titanium black particles in the black photosensitive resin composition is 40 to 75% by weight, preferably 50 to 70% by weight.
% By weight. If the content of the titanium black particles is less than 40% by weight, the film strength becomes insufficient, which is not preferable, and a desired optical density cannot be obtained. On the other hand, when the content of the titanium black particles exceeds 75% by weight, it is difficult to form a coating having a volume resistance of 10 ⁵ Ωcm or more, which is not preferable.

In the present invention, in addition to titanium black particles, one or more black oxides such as complex oxides such as Cu, Fe, Mn, V and Ni, cobalt oxide, iron oxide, carbon black and aniline black may be used. It may be contained in a combination of two or more, in which case 50% by weight of the pigment
The above is assumed to be occupied by titanium black particles.

The above-mentioned oxide thin film is for covering the surface of the titanium black particles to prevent the aggregation of the titanium black particles. The oxide thin film is made of any oxide such as silicon oxide, titanium oxide, germanium oxide, aluminum oxide, zirconium oxide, and magnesium oxide. Such an oxide thin film can be contained in the black photosensitive resin composition at a ratio of 1 to 20 parts by weight, preferably 5 to 15 parts by weight, based on 100 parts by weight of titanium black. When the content of the oxide thin film exceeds 20 parts by weight, the blackness of the formed film becomes insufficient, and the optical density (OD value) decreases. When the content is less than 1 part by weight, the coating of the titanium black particles is insufficient. There is a possibility that titanium black particles may be aggregated.

As described above, since the aggregation of the titanium black particles is prevented by the oxide thin film adhered to the surface of the titanium black particles, the black photosensitive resin composition has excellent stability over time. Further, since the titanium black particles do not form secondary particles or tertiary particles, the volume resistance of the titanium black particles themselves is 10 ^-1 Ωcm to 10 ⁴ Ω.
cm, it is possible to form a film having a high volume resistance of 10 ⁵ Ωcm or more. In the present invention, the volume resistance means a volume resistance measured according to JIS K6911.

[0015] The binder component constituting the black photosensitive resin composition of the present invention is characterized by containing an epoxy acrylate having a carboxyl group. Preferred epoxy acrylates have a symmetrical structure with a reactive group at both ends and a molecular weight of 10,000 or less, and include, for example, those represented by the following general formula (1).

[0016]

Embedded image Wherein, R ₁ and R ₂ represents a hydrogen atom, an alkyl group or a halogen atom having 1 to 5 carbon atoms, R ₃ represents a hydrogen atom or a methyl group, X is -CO -, - SO -, - C (C
_{F 3) 2 -, - Si} (CH 3) 2 -, - CH 2 -, - C (C
H ₃ ) ₂ —, —O— or fluorenylidene, Y represents a residue of an acid anhydride (a benzene ring when the acid anhydride is phthalic anhydride, and —CH ₂ —CH ₂ — when maleic anhydride is used) Is shown. ]

As described above, when the epoxy acrylate is contained in the binder component, the formed film has high adhesion. The content of the epoxy acrylate is desirably in the range of 20 to 70% by weight of the binder component.

Further, the black photosensitive resin composition may contain a dispersant as an additive, and may further include a humectant, a thickener, a leveling agent, and the like, appropriately selected. As the dispersant, a dispersant having an acid value and an amine value can be used, and specifically, Solsperse 24 manufactured by Avicia Co., Ltd.
000, Solsperse 33500, Disperbyk161 manufactured by BYK Japan KK, or the like can be used. Here, “having an acid value / amine value” means a dispersant having both an acid value group and an amine value group in one molecule. The content of such a dispersant is 3% of the binder component of the black photosensitive resin composition.
A range of from 10 to 10% by weight is desirable.

Examples of the solvent used in the black photosensitive resin composition include alcohols such as methanol, ethanol, n-propanol, isopropanol, ethylene glycol and propylene glycol, terpenes such as α- and β-terpineol, and the like. Ketones such as acetone, methyl ethyl ketone, cyclohexanone, N-methyl-2-pyrrolidone, aromatic hydrocarbons such as toluene, xylene and tetramethylbenzene, cellosolve, methyl cellosolve, ethyl cellosolve, carbitol, methyl carbitol, ethyl carbyl Tall, butyl carbitol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, Glycol ethers such as ethylene glycol monomethyl ether and triethylene glycol monoethyl ether, ethyl acetate, butyl acetate,
Cellosolve acetate, ethyl cellosolve acetate,
Examples thereof include acetates such as butyl cellosolve acetate, carbitol acetate, ethyl carbitol acetate, butyl carbitol acetate, propylene glycol monomethyl ether acetate, and propylene glycol monoethyl ether acetate.

The photopolymerization initiator used in the black photosensitive resin composition of the present invention includes benzophenone, Michler's ketone, N, N'tetramethyl-4,4'-diaminobenzophenone, 4-methoxy-4'- Aromatic ketones such as dimethylaminobenzophenone, 4,4'-diethylaminobenzophenone, 2-ethylanthraquinone and phenanthrene; benzoin ethers such as benzoin methyl ether, benzoin ethyl ether and benzoin phenyl ether; benzoin such as methyl benzoin and ethyl benzoin; 2- (o-chlorophenyl) -4,
5-phenylimidazole dimer, 2- (o-chlorophenyl) -4,5-di (m-methoxyphenyl) imidazole dimer, 2- (o-fluorophenyl) -4,5
-Diphenylimidazole dimer, 2- (o-methoxyphenyl) -4,5-diphenylimidazole dimer,
2,4,5-triarylimidazole dimer, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone, 2-trichloromethyl-5-styryl-1,3,4-oxa Diazole, 2-trichloromethyl-5- (p-cyanostyryl) -1,3,4-
Oxadiazole, 2-trichloromethyl-5- (p-
Halomethylthiazole compounds such as methoxystyryl) -1,3,4-oxadiazole, 2,4-bis (trichloromethyl) -6-p-methoxystyryl-S-triazine, 2,4-bis (trichloromethyl) −6- (1-
p-dimethylaminophenyl-1,3-butadienyl)
-S-triazine, 2-trichloromethyl-4-amino-6-p-methoxystyryl-S-triazine, 2-
(Naphth-1-yl) -4,6-bis-trichloromethyl-S-triazine, 2- (4-ethoxy-naphth-1
-Yl) -4,6-bis-trichloromethyl-S-triazine, 2- (4-butoxy-naphth-1-yl)-
Halomethyl-S-triazine compounds such as 4,6-bis-trichloromethyl-S-triazine, 2,2-dimethoxy-1,2-diphenylethan-1-one, 2-methyl-1- [4- (methylthio ) Phenyl] -2-morpholinopropanone, 1,2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone-
Examples thereof include photopolymerization initiators such as 1,1-hydroxy-cyclohexyl-phenyl ketone, Irgacure 369 (Ciba-Geigy), Irgacure 651 (Ciba-Geigy), and Irgacure 907 (Ciba-Geigy). In the present invention, these photopolymerization initiators alone,
Alternatively, two or more kinds can be used in combination. The addition amount of such a photopolymerization initiator is 5 to 50% by weight, preferably 10 to 10% by weight of the binder component of the black photosensitive resin composition.
A range of -40% by weight is desirable.

The above-described black photosensitive resin composition of the present invention is obtained by first forming an oxide thin film on titanium black particles having an average particle diameter of 200 nm or less, and adding a pigment containing the titanium black particles as a main component. The dispersant and the solvent are mechanically dispersed. This mechanical dispersion is performed using a sand mill, a nano mill, a dyno mill, a diamond fine mill, or the like. Next, a binder component in the dispersion obtained by the above mechanical dispersion,
If necessary, various additives are added and mixed to obtain the black photosensitive resin composition of the present invention. In the above-described mechanical dispersion, the titanium black particles are coated on the oxide thin film, and since the binder component contains an epoxy acrylate having a carboxyl group,
Even when mixed with the binder component, the polymerization of the binder and the monomer does not proceed to cause gelation, and the obtained black photosensitive resin composition of the present invention has excellent stability over time.

Black Coating The black coating of the present invention is formed by using the above-described black photosensitive resin composition of the present invention, and has a volume resistance of 10 ⁵ Ωcm or more. The thickness of the black coating is 1.
The thickness can be in the range of 0 to 2.0 μm, and can be appropriately set according to the purpose of use together with the pattern shape.

Next, as an example of the black film of the present invention, a resin light-shielding layer on a counter electrode substrate of a liquid crystal display device will be described. FIG. 1 is a schematic sectional view for explaining a resin light shielding layer in a liquid crystal display device. 1, in a liquid crystal display device 1, a counter electrode substrate 11 and a color filter 31 are opposed at a predetermined interval, a peripheral portion is sealed with a seal member (not shown), and a liquid crystal layer 5 is formed in a gap. It was done. Although not shown, polarizing plates are provided outside the counter electrode substrate 11 and the color filters 31, respectively.

Counter electrode substrate 1 constituting liquid crystal display device 1
Reference numeral 1 denotes a semiconductor driving element 20 integrally formed on a transparent substrate 12, a transparent pixel electrode 13, and a semiconductor driving element 20.
The resin light-shielding layer 15 formed thereon, the transparent pixel electrode 13,
An alignment layer 16 is formed to cover the semiconductor drive element 20 and the resin light shielding layer 15.

The semiconductor drive element 20 includes a gate electrode 21,
This is a thin film transistor (TFT) including a gate insulating film 22, a semiconductor layer 23 of amorphous silicon or the like, a source electrode 24, and a drain electrode 25. The drain electrode 25 has one end connected to the semiconductor layer 23 and the other end connected to the transparent pixel electrode 13.

The color filter 31 constituting the liquid crystal display device 1 includes a substrate 32, a black matrix 33 and a colored layer 34 formed on the substrate 32,
A transparent resin protective layer 35 is formed so as to cover the black matrix 33 and the colored layer 34. On the resin protective layer 35 of the color filter 21, a common transparent electrode layer 37 for driving liquid crystal and an alignment layer 38 are formed.

The resin light-shielding layer 15 is formed on the source electrode 24 and the drain electrode 25 so as to shield the semiconductor layer 23 from light, and suppresses light leakage current of the semiconductor drive element 20. Since the resin light-shielding layer 15 is formed using the black photosensitive resin composition of the present invention,
0 ⁵ has Ωcm or volume resistivity, without causing dielectric breakdown at about 10V applied voltage, also, adhesion between the resin light shielding layer 15 is sufficiently high. The resin light-shielding layer in the above-described liquid crystal display device is an example of the black coating of the present invention, and is not limited to this.

The black matrix substrate FIG. 2 is a schematic sectional view showing an example of the black matrix substrate of the present invention. 2, a black matrix substrate 51 includes a transparent substrate 52 and a black matrix 53 formed on the transparent substrate 52.

As the transparent substrate 52, a rigid material having no flexibility such as quartz glass, Pyrex (registered trademark) glass or a synthetic quartz plate, or a flexible material such as a transparent resin film or an optical resin plate is used. Materials can be used. Among them, Corning 1737 glass is a non-alkali glass containing no alkali, is a material having a small coefficient of thermal expansion, and is excellent in dimensional stability and workability in high-temperature heat treatment.

The black matrix 53 is formed using the black photosensitive resin composition of the present invention. The thickness of the black matrix 53 can be in the range of 1 to 2 μm, and does not cause dielectric breakdown even at an applied voltage of about 10 V, and has a volume resistance of 10 ⁵ Ωcm or more. Therefore, the present invention can be applied to an IPS (In-Plane Switching) liquid crystal mode in which a high volume resistance is required for the black matrix. Further, the adhesion of the black matrix 53 to the transparent substrate 52 is sufficiently high.

[0031]

Next, the present invention will be described in more detail with reference to examples. Preparation of Titanium Black Particles Titanium black particles (average particle size: 100 nm) whose surface was coated with a thin film of silicon oxide as an oxide were prepared as follows. That is, titanium black particles were dispersed in water so as to have a concentration of 20%, and crushed vigorously with a sand mill. Separately, silicon tetraethoxide (TEO) corresponding to 5% by weight of titanium black is used as SiO _2.
The ethanol solution in which S) was dissolved was slowly added to the above titanium black particle dispersion, stirred for 24 hours, and dried at 150 ° C. for 24 hours to obtain titanium black particles.

Preparation of Black Photosensitive Resin Composition To 100 g of the above-mentioned titanium black, 20 g of a dispersant (Solsperse 24000 manufactured by Avicia) and 180 g of a solvent (dimethyldiglycol), 200 cc of zirconia beads (0.3 mm in diameter) were added. The mixture was dispersed for 3 hours in a sand mill at a rotor rotation speed of 1500 rpm.

Next, 100 g of a binder component having the following composition containing an epoxy acrylate having a carboxyl group was added to the above black dispersion and mixed to obtain a black photosensitive resin composition (Example). (Composition of binder component) Bisphenol A epoxy acrylate (acid adduct): 60 parts by weight Dipentaerythritol pentaacrylate: 18 parts by weight Trimethylolpropane triacrylate: 7 parts by weight Irgacure 907 (manufactured by Ciba Geigy) 10 Parts by weight ・ biimidazole… 5 parts by weight

For comparison, in the same manner as in the example except that titanium black was not covered with the oxide thin film,
A black photosensitive resin composition (Comparative Example 1) was obtained. For comparison, a photosensitive black resin composition (Comparative Example 2) was obtained in the same manner as in Example, except that the average particle size of the titanium black particles was 300 nm.

Further, for comparison, a photosensitive black resin composition (Comparative Example 3) was obtained in the same manner as in Example except that a binder component having the following composition not containing epoxy acrylate was used. (Composition of binder component) ・ Styrene-methyl methacrylate-methacrylic acid copolymer 60 parts by weight Dipentaerythritol pentaacrylate 18 parts by weight Trimethylolpropane triacrylate 7 parts by weight Irgacure 907 (manufactured by Ciba Geigy) ... 10 parts by weight ・ Bimidazole ... 5 parts by weight

Formation of Black Coating Each of the above black photosensitive resin compositions was applied on a glass substrate by spin coating, dried, and irradiated with ultraviolet rays to form a black coating having a thickness of 1.5 μm. The volume resistance and optical density (OD value) of this black film were measured under the following conditions, and the results are shown in Table 1 below. The adhesion of the black coating to the glass substrate and the stability over time of the black photosensitive resin composition were evaluated according to the following criteria. The results are shown in Table 1 below.

(Conditions for Measuring Volume Resistance) A similar black coating is formed on an ITO substrate, and electrodes are formed on the film surface (evaporation method). A voltage (5 V) is applied to the coating through the electrode,
The current value is measured to calculate the volume resistance value.

(Measurement condition of OD value) The substrate on which the black film was formed was measured with a DENSITOMETER PDA25 (manufactured by Konica Corporation).

(Evaluation Criteria for Substrate Adhesion) ：: Irradiated with ultraviolet rays at 300 mJ / cm ² ,
After development for 0 seconds, a 20 μm line pattern remains. ×: Irradiation with ultraviolet rays at 300 mJ / cm ² ,
After the development for 0 second, the 20 μm line pattern is peeled off.

(Evaluation Criteria of Stability over Time): The viscosity of the resist supernatant does not change. ×: The viscosity of the resist supernatant decreases.

[0041]

[Table 1]

As shown in Table 1, the black photosensitive resin composition of the present invention has excellent stability over time, and a black film formed using this composition has a volume resistance of 10 ⁵ Ωcm or more and an OD value of 3 or more. As described above, the adhesion to the glass substrate was also high. On the other hand, in the black photosensitive resin composition of Comparative Example 1, aggregation of titanium black occurred, the volume resistance was low, and the stability over time was poor. Further, the black photosensitive resin composition of Comparative Example 2 has a large average particle size of titanium black, making it difficult to form a fine pattern. further,
The black coating formed using the black photosensitive resin composition of Comparative Example 3 had poor adhesion to the glass substrate.

[0043]

As described in detail above, according to the present invention, the black photosensitive resin composition contains at least a pigment, a binder component and a solvent, and the pigment has an oxide thin film on the surface and has an average particle diameter of 200 nm. Since the following titanium black particles are the main components and the binder component contains an epoxy acrylate having a carboxyl group, the aggregation of the titanium black particles is prevented by the oxide thin film. excellent, also titanium black secondary particles, cubic since no particles to form a, 10 ^-1 [Omega] cm volume resistivity of the titanium black particles themselves
Despite being about 〜１０10 ⁴ Ωcm, the black coating and black matrix formed using the black photosensitive resin composition of the present invention have a high volume resistance of 10 ⁵ Ωcm or more, and have a binder The epoxy acrylate component has excellent adhesion.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view for explaining a resin light-shielding layer in a liquid crystal display device which is an example of a black film of the present invention.

FIG. 2 is a schematic sectional view showing an example of the black matrix substrate of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Liquid crystal display device 11 ... Counter electrode substrate 15 ... Resin light shielding layer 20 ... Semiconductor drive element 31 ... Color filter 51 ... Black matrix substrate 52 ... Substrate 53 ... Black matrix

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G02B 5/20 101 G02B 5/20 101 4J027 G02F 1/1335 500 G02F 1/1335 500 G03F 7/004 501 G03F 7/004 501 505 505 7/027 515 7/027 515 F-term (reference) 2H025 AA20 AB17 AC01 AD01 BC43 BC74 CC03 CC12 CC20 FA03 FA14 2H048 BA11 BA45 BA47 BA48 BB01 BB02 BB14 BB44 2H091 FA02Y FA08X FA35Z04 FA08X FA08Z CD201 DA037 DE067 DE097 DE117 DE136 FB076 FD096 FD097 FD310 GP00 4J011 AC04 HB17 PA04 PB14 PB25 PC02 PC08 QA18 QA37 QB19 QB20 SA21 SA22 SA23 SA25 SA28 SA31 SA32 SA34 SA38 SA39 SA40 SA62 SA63 SA07 SA02 SA03 SA75 SA02 SA07 SA07 SA02 SA07 SA07 SA07 SA07 SA02 SA07 SA07 SA07 SA07 SA03 SA07 SA07 SA07 SA07 SA07 SA07 SA07 SA07 SA07 SA07 SA07 SA07 SA07 SA07 SA03 SA07 SA07 SA07 SA07 SA07 SA07 SA02 CD10

Claims (5)

[Claims] 1. A black photosensitive resin composition containing at least a pigment, a binder component and a solvent, wherein the pigment is mainly composed of titanium black particles having an oxide thin film on the surface and having an average particle diameter of 200 nm or less, and the binder component is A black photosensitive resin composition comprising an epoxy acrylate having a carboxyl group. 2. The black photosensitive resin composition according to claim 1, wherein the oxide thin film is contained in an amount of 5 to 15 parts by weight based on 100 parts by weight of the titanium black particles. 3. The black photosensitive resin composition according to claim 1, further comprising a dispersant having an acid value and an amine value. 4. A black film formed by using the black photosensitive resin composition according to claim 1. 5. A transparent substrate, and a black matrix provided on the transparent substrate, wherein the black matrix is formed by using the black photosensitive resin composition according to any one of claims 1 to 3. A black matrix substrate, characterized in that: