JPH0876130A - Forming member for substrate and production of liquid crystal panel - Google Patents

Abstract

PURPOSE: To provide a forming member for substrate to be used for the production of a liquid cystal panel in which decrease in contrast due to spacers, variation of thickness of the liquid crystal layer due to uneven dispersion of spacers and irregular display due to movement of spacers are not caused, and to provide a production method for the liquid crystal panel using this forming member for substrate. CONSTITUTION: At least one substrate 21 out of a pair of insulating substrates each having at least a driving electrode 22 for liquid crystal is adhered with a photosensitive resin film 15 colored into black to which plural spacers 16 to hold the distance between substrates are almost uniformly dispersed and fixed. The photosensitive resin film 15 is patterned so that the film remains in the area except for the effective display area which is the overlapped area of the liquid crystal driving electrodes 22. Then, an oriented film 26 is formed on almost whole area of the insulating substrate pair to obtain the substrate pair. The obtd. substrate pair are adhered to each other as that their oriented films 26 face each other, and a liquid crystal material is injected into the space between the substrates.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate forming member used for forming a pair of substrates constituting a liquid crystal panel, and a method of manufacturing a liquid crystal panel using the substrate forming member.

[0002]

2. Description of the Related Art Conventionally, in order to maintain a space between substrates of a liquid crystal panel, spacers such as spherical plastic beads are sprinkled over the entire surface of at least one of the pair of substrates by a sprinkling method, and the spacers are paired. The method of sandwiching between the substrates is used.

However, in this method, since the spacers are scattered over the entire surface of the substrate, many spacers are also scattered over the effective display area, which is the overlapping portion of the liquid crystal driving electrodes formed on the pair of substrates. . Therefore, the contrast is generally lowered due to the leakage of scattered light by the spacer. A technique for solving this problem is disclosed in Japanese Unexamined Patent Publication No. Hei 5
-11256 and JP-A-6-43468.

In JP-A-5-11256, a photosensitive sheet provided with a photopolymerizable resin layer is laminated on at least one of a pair of substrates constituting a liquid crystal panel, and a pixel electrode of the photopolymerizable resin layer is laminated. There is disclosed a method of forming a spacer for a liquid crystal panel by performing pattern exposure and development on at least a portion corresponding to a portion not located above or a black stripe portion forming a color filter.

In Japanese Unexamined Patent Publication No. 6-43468, after coating a black mask material containing a spacer on a protective film by a predetermined printing means, a coated glass substrate is pre-baked and irradiated with ultraviolet rays to expose a portion other than a color filter. Then, the development is performed to remove the black mask material other than the photosensitive portion, and the black mask and the spacer fixed to the black mask are formed only in the pattern space portion (the portion where the electrode is not formed), and the gap control method of the liquid crystal panel. Is disclosed.

[0006]

In the method using the above-mentioned dispersion method, it is difficult to evenly disperse the spacers on the substrate in addition to the reduction of the contrast. There is a problem of degrading quality. Further, since the spacers are not fixed in the liquid crystal layer, there is a problem that the spacers move due to vibration of the liquid crystal panel, thermal expansion, flow of liquid crystal at the time of liquid crystal injection, etc., and display unevenness occurs.

The method disclosed in the above-mentioned Japanese Patent Laid-Open No. 5-11256 has a problem that the film thickness is reduced by the heat applied in the process of manufacturing the photosensitive sheet and the heat applied in the process of laminating the photosensitive sheet on the substrate. Moreover, since the hardness of the resin is lower than the hardness of the plastic beads or glass beads that are currently used as spacers, when a pair of substrates is bonded by applying a load, it is inferior in terms of holding a uniform load. Since the width of the liquid crystal changes depending on the variation of pattern exposure and development accuracy, there is a problem in the variation of the thickness of the liquid crystal layer between the produced liquid crystal panels and the uniformity of the thickness of the liquid crystal layer in each liquid crystal panel. .

In the method disclosed in the above-mentioned JP-A-6-43468, it is difficult to control the dispersibility of the spacer in the coating liquid before printing, so that the thickness of the liquid crystal panel is uniform. There's a problem. Further, since the spacer and the black mask have a weak adhesive force, they are easily peeled off. Therefore, in order to improve the adhesiveness, it is necessary to coat the surface of the spacer with a resin such as acryl. Further, during brush cleaning in the photolithography process, the peeled spacer damages the ITO (indium tin oxide) film in the effective display area and the color filter, causing light failure due to disconnection. It is necessary to provide a protective film such as SiO ₂ (silicon dioxide). Therefore, there are problems such as an increase in the price of the spacer and an increase in the price of the liquid crystal panel due to the addition of manufacturing processes.

An object of the present invention is to form a substrate used for manufacturing a liquid crystal panel without deterioration of contrast due to spacers, variation in thickness of liquid crystal layer due to uneven distribution of spacers, and display unevenness due to movement of spacers. It is an object of the present invention to provide a method for manufacturing a liquid crystal panel using the member for forming the substrate and the member for forming the substrate.

[0010]

The present invention is a substrate forming member used when forming a pair of substrates constituting a liquid crystal panel, comprising a film-shaped support and one surface of the support. A substrate forming member, comprising: a photosensitive resin film, which is provided in a peelable manner and has a plurality of spacers for holding the substrate spacing and which are substantially evenly dispersed and fixed, and which is colored in black. Further, the present invention is characterized in that an intermediate film having relatively low oxygen permeability and / or a thermoplastic resin film is interposed between the photosensitive resin film and the support. Further, the present invention provides a method of manufacturing a liquid crystal panel configured by interposing a liquid crystal layer between a pair of substrates, wherein a pair of insulating substrates each having at least a liquid crystal driving electrode formed thereon are prepared. At least one of the substrates was adhered with a black colored photosensitive resin film in which a plurality of spacers for holding the substrate spacing were substantially uniformly dispersed and fixed, and formed on a pair of insulating substrates, respectively. In the area excluding the effective display area, which is the overlapping portion of the liquid crystal drive electrodes,
Patterning is performed so that the photosensitive resin film to which the spacers are fixed remains, and an alignment film is formed on almost the entire surface of such a pair of insulating substrates to form a pair of substrates. And a liquid crystal material is injected between the substrates.

[0011]

According to the present invention, the substrate forming member is a photosensitive member colored in black in which a plurality of spacers for holding the substrate spacing are substantially uniformly dispersed and fixed to one surface of the film-shaped support. The resin film is provided so that it can be peeled off. Therefore, when the substrate forming the liquid crystal panel is formed using this substrate forming member, the spacer is almost uniformly dispersed and adhered to the substrate because the photosensitive resin film adhered thereto is adhered to the substrate. It is possible to uniformly control the substrate interval.

According to the invention, in the substrate forming member, an intermediate film having a relatively low oxygen permeability and / or a thermoplastic resin film is interposed between the photosensitive resin film and the support. . Therefore, when a substrate forming a liquid crystal panel is formed using a substrate forming member having an intermediate film having a relatively low oxygen permeability, a photocuring reaction in a photosensitive resin film colored in black is performed. It is possible to prevent the diffusion of oxygen from the air that interferes with. Further, when forming a substrate that constitutes a liquid crystal panel using a substrate forming member having a thermoplastic resin film interposed, it is necessary to avoid mixing of air bubbles when the substrate forming member is bonded to the substrate. It is possible. Furthermore, when forming a substrate using a substrate forming member having a relatively low oxygen permeability intermediate film and a thermoplastic resin film, in addition to the effects obtained by the above-mentioned films,
It is possible not to mix the thermoplastic resin film and the photosensitive resin film.

Further, according to the present invention, first, at least the liquid crystal driving electrodes are formed with a photosensitive resin film colored in black, in which a plurality of spacers for holding the substrates are dispersed and fixed substantially uniformly. It adheres to at least one of the pair of insulating substrates. Next, pattern exposure, development, and patterning are performed so that the photosensitive resin film with the spacers uniformly adhered remains in a region other than the effective display region, which is the overlapping portion of the liquid crystal driving electrodes formed on the pair of insulating substrates, respectively. Peeling, heat curing fixing, or photo-curing fixing is performed.
Next, an alignment film is formed on almost the entire surface of such a pair of insulating substrates to form a pair of substrates. Further, a pair of substrates are attached so that the alignment films face each other, and a liquid crystal material is injected between the substrates to manufacture a liquid crystal panel. Therefore, the photosensitive resin film in which the spacers are dispersed and fixed substantially uniformly is formed in a region of the liquid crystal panel excluding the effective display region, so that it is possible to prevent a decrease in contrast due to the spacers.
Further, since the spacer is sandwiched between the insulating substrate and the cured and fixed photosensitive resin film, the spacer does not move or peel off, and no special processing for fixing the spacer in the liquid crystal panel manufacturing process is performed. , It is possible to eliminate display unevenness.

[0014]

1 is a sectional view of a substrate forming member 11 according to an embodiment of the present invention. The substrate forming member 11 includes a film-shaped support 12, a thermoplastic resin film 13 formed on one surface of the support 12, an intermediate film 14 formed on the resin film 13, and an intermediate film 14 formed on the intermediate film 14. It includes the formed photosensitive resin film 15 and a plurality of spacers 16 fixed to the surface of the resin film 15 by being dispersed substantially uniformly. Substrate forming member 11
Is a support 1 provided with a thermoplastic resin film 13 in order to avoid inclusion of bubbles when transferring the substrate forming member 11 to the substrate.
2 is provided with an intermediate film 14, and a photosensitive black colored resin film 15 having adhesiveness is further provided thereon, and spacers 16 are uniformly arranged therein by a mesh method or the like, and then dried by heating. Created.

The support 12 has flexibility and undergoes significant deformation, contraction, or compression even under pressure or under pressure and heat.
Or it is necessary that no elongation occurs. Examples of such a support 12 include a polyethylene terephthalate film, a cellulose triacetate film, a polystyrene film and a polycarbonate film, and a biaxially oriented polyethylene terephthalate film is particularly preferable.

The resin forming the thermoplastic resin film 13 preferably has a substantial softening point of 80 ° C. or lower. The alkali-soluble thermoplastic resin having a softening point of 80 ° C. or lower is a saponified product of a copolymer of ethylene and an acrylic ester,
At least one selected from saponified products of a copolymer of styrene or vinyltoluene and a (meth) acrylic acid ester, poly (meth) acrylic acid ester, etc. is preferable, but an organic polymer having a softening point of about 80 ° C. or lower. Of these, those soluble in an alkaline aqueous solution can also be used. The thickness of the thermoplastic resin film 13 is preferably 5 μm or more in order to completely absorb irregularities on the surface of the base 12 which is a base of 1 μm or more and prevent bubbles generated between the base 12 and the base. The upper limit is 100 μm or less, preferably 50 μm or less, in consideration of developability and manufacturing suitability.

The intermediate film 14 is formed on the substrate by the substrate forming member 11
In order to prevent the diffusion of oxygen from the air which hinders the photo-curing reaction in the photosensitive resin film 15 when the support 12 is peeled off and the pattern exposure is performed after the sticking, and the thermoplastic resin film 13 and the photosensitive resin It is provided so as not to mix with the resin film 15. For this reason, it is preferable that the photosensitive resin film 15 cannot be mechanically peeled from the photosensitive resin film 15 and has a high oxygen blocking property. For such an intermediate film 14, the polymer solution is provided on the support 12 and the thermoplastic resin film 13 is used. It is formed by applying through.

Suitable polymers include copolymers of polyvinyl ether and maleic anhydride, water-soluble cellulose ethers, polyvinyl alcohol, polyvinylpyrrolidone, various polyacrylamides, various water-soluble polyamides, styrene and maleic acid. And a maleinate resin, and a combination of two or more of these. Particularly preferred is the combination of polyvinyl alcohol and polyvinylpyrrolidone. Intermediate film 14
If the thickness is less than 0.1 μm, the oxygen blocking ability is reduced, and if it exceeds 5 μm, it takes too much time during development or removal of the intermediate film 14, so 0.1 to 5 μm, preferably 0.2 to 2 μm.

The photosensitive resin film 15 is at least 150 ° C.
It becomes soft or tacky at the following temperature and is preferably thermoplastic. Most of the films using known photopolymerizable compositions have this property. As the material of the photosensitive resin film 15, all known photosensitive resins can be used. Specific examples include a negative type diazo resin or a photosensitive resin composed of an azide compound and a binder, a photopolymerizable resin, a cinnamic acid type photosensitive resin, and the like, and a photopolymerizable resin is particularly preferable. The photopolymerizable resin contains a photopolymerization initiator, a photopolymerizable monomer, and a binder as basic constituent elements.

The spacer 16 is a transparent, cylindrical or granular fine material, for example, a particle size of 6 μm and a CV value of 3%.
Plastic beads or particle size 6μm, CV value 1%
Glass beads of 200 to 10 in a circular area with a diameter of 1 mm
They are arranged in a distributed manner at a rate of 00 pieces. The CV value is
It is the ratio of the average deviation to the average particle size, and is a value that represents the particle size accuracy.

FIG. 2 is a cross-sectional view for explaining a method of manufacturing a substrate which constitutes a liquid crystal panel according to the present invention.
In FIG. 2 (1), a transparent insulating substrate 21 made of, for example, glass is prepared, and in FIG. 2 (2), a transparent electrode 22 made of, for example, ITO is formed on the insulating substrate by vapor deposition or sputtering. One surface 21a of 21
Form on top. The transparent electrodes 22 are formed in a plurality of strips that are equidistant and parallel to each other.

Next, in FIG. 2 (3), the substrate forming member 11 shown in FIG. 1 is pasted with the photosensitive resin film 15 and the transparent electrode 22 facing each other under heating and heating by a laminator. Next, in FIG. 2 (4), the support 12 is peeled off. At this time, the thermoplastic resin film 13 is peeled off together to obtain a high resolution and to shorten the development time.

Next, in FIG. 2 (5), pattern exposure is performed through the photomask 23 shown in the enlarged plan view of FIG. 3, for example. In the photomask 23, light-transmitting portions 24 and light-shielding portions 25 shown by hatching are alternately arranged, and both portions are formed into a plurality of parallel strips at equal intervals. Next, in FIG. 2 (6), development and peeling are performed, and the wavelength is 365 to 405 nm and the energy is 50 to 3000.
Irradiate with mJ ultraviolet rays to fix, 200-240 ℃, 1
By performing heating and baking for 3 hours, a black mask 17 corresponding to the shape of the photomask 23 and having a strip shape orthogonal to the longitudinal direction of the transparent electrode 22 is formed. Furthermore, FIG.
In (7), the alignment film 26 is formed, and a rubbing treatment is performed to obtain a substrate according to the present invention.

A partially enlarged view of FIG. 2 (7) is shown in FIG.
FIG. 5 is an enlarged cross-sectional view taken along the line I-I shown in (7).
Are shown respectively. 4 and 5, the enlargement ratio of each component is different, so the actual shape of the substrate is not accurately represented.

FIG. 6 is a diagram for explaining a method of manufacturing a monochrome liquid crystal panel which is an embodiment of the present invention. Figure 6
(1) and FIG. 6 (2) are simplified cross-sectional views and plan views of the pair of substrates 30 and 40, and FIG. 6 (3) is a simplified view of the pair of substrates 30 and 40 bonded together. FIG. In FIGS. 6 (2) and 6 (3), the black masks 33 and 43 are shown by hatching for ease of illustration. The transparent electrodes 32 and 42, that is, the black masks 33 and 43, and the pair of substrates 30 and 40 on which the strip-shaped black masks 33 and 43 are formed by the above-described substrate manufacturing method are orthogonal to each other, and the alignment films face each other. As described above, it is possible to fabricate a black-and-white liquid crystal panel having a black matrix structure by laminating under heating and heating, injecting a liquid crystal material, and sealing the injection hole. Black mask 3
Although there is a possibility that the spacers 16 will overlap and become thicker than the other parts at the intersections of 3,43, there is little probability that the spacers 16 will overlap, and even if they do overlap, there will be a deviation, so there is no problem. This also applies to the embodiment of FIG. 12 described later.

FIG. 7 is a diagram for explaining a method of manufacturing a monochrome liquid crystal panel which is another embodiment of the present invention. This embodiment is similar to the embodiment shown in FIG. 6, and corresponding parts are designated by the same reference numerals. In the substrate manufacturing method described above, a photo having a square light-transmitting portion 24a as shown in an enlarged plan view in FIG. 8 and a grid-like light-shielding portion 25a shown by hatching in place of the photomask 23. When the mask 23a is used, the substrate 30a on which the lattice-shaped black mask 33a is formed is obtained. This substrate 30a and the transparent electrode 42
And the substrate 40a having an alignment film, each transparent electrode 3
A black and white liquid crystal panel having a black matrix structure can also be produced by laminating under heating and heating so that 2 and 42 face each other at right angles.

FIG. 9 is a cross-sectional view for explaining a method of manufacturing one of the substrates constituting the color liquid crystal panel according to the present invention, and FIG. 10 is a partially enlarged view of FIG. 9 (9). 11 is an enlarged cross-sectional view taken along the section line II-II shown in FIG. 9. This manufacturing method is similar to the above-described substrate manufacturing method, and corresponding members are designated by the same reference numerals. It should be noted that the transparent insulating substrate 21 and the transparent electrode 22
And a color filter 27 for color display,
Overcoat film 28 for protecting the color filter 27
That is, the substrate is configured with the interposition of and. By using such a substrate as either one of the pair of substrates that form the liquid crystal panel, the liquid crystal panel can be colored, and the visibility and versatility are improved.
Red (R), green (G), and blue (B) color filters 27
May be formed so as to be orthogonal to the longitudinal direction of the transparent electrode 22 by a dyeing method, a vapor deposition method, an electrodeposition method, a printing method, or the like, and may be similarly formed on the transparent electrode 22.

FIG. 12 is a diagram for explaining a method of manufacturing a color liquid crystal panel which is still another embodiment of the present invention. This embodiment is exactly the same as the embodiment of FIG. 6 except that the substrate 30b has the color filter 27 and the overcoat film 28, and therefore, corresponding parts are designated by the same reference numerals and description thereof is omitted. To do.

FIG. 13 is a view for explaining a method of manufacturing a color liquid crystal panel which is still another embodiment of the present invention. Also in this embodiment, the substrate 30c is the color filter 27.
Since it is completely the same as that of the embodiment of FIG. 7 except that it has the overcoat film 28 and the overcoat film 28, the same reference numerals are given to the corresponding portions and the description thereof will be omitted. Lattice black mask 33
In the case of a monochrome liquid crystal panel, a may be formed on either one of a pair of substrates, but in the case of a color liquid crystal panel, it is usually formed on the substrate on which the color filter 27 is provided.

As described above, according to this embodiment, the spacer 16 is the photosensitive resin film 15 constituting the substrate forming member 11.
Since the particles are substantially evenly dispersed and fixed on the substrate 20,
The spacers 16 are not peeled off when the 30, 30a, 30b, 30c, 40, and 40a are formed, and the substrate spacing can be uniformly controlled. That is, the deviation of the distance between the pair of substrates at each position of one liquid crystal panel is ± 0.2 in the related art.
While it was about 0 μm, in the present invention ± 0.05 μ
It can be improved to m or less. Further, the deviation between the liquid crystal panels in the distance between the pair of substrates in the central portion of each liquid crystal panel is ± 0.30 μm in the prior art, whereas
In the present invention, it can be improved to ± 0.10 μm or less.

Further, according to this embodiment, since the intermediate film 14 and the thermoplastic resin film 13 are interposed in the substrate forming member 11, the thermoplastic resin film 13 and the photosensitive resin film 15 should be mixed with each other. Without the substrates 20, 30, 30a, 30
It is possible to prevent oxygen from diffusing from the air during formation of b, 30c, 40 and 40a, to avoid inclusion of bubbles and to prevent inhibition of photo-curing reaction.

Further, according to the present embodiment, since the photosensitive resin film 15 to which the spacer 16 is fixed is formed in the area excluding the effective display area of the liquid crystal panel, it is possible to prevent the spacer 16 from lowering the contrast. In other words, the contrast of both the black-and-white liquid crystal panel and the color liquid crystal panel was 18 to 20 in the conventional technique, whereas it was 25 in the present invention.
Can be raised to ~ 30. Further, since the spacer 16 is sandwiched between the insulating substrates 21, 31, 41 and the photosensitive resin film 15 which is cured and fixed, a special process for fixing the spacer 16 is unnecessary, and display unevenness due to the movement of the spacer 16 is eliminated. Can be eliminated.

Furthermore, according to this embodiment, the photosensitive resin film 15 is colored black, so that the black mask 1
It can function as 7, 33, 33a, 43.
The black masks 17, 33, 33a and 43 are formed by four steps of cleaning, laminating, exposing and developing. On the other hand, a metal vapor deposition mask, which is a black mask, is created by eight steps of cleaning, vacuuming, vapor deposition, cleaning, resist application, exposure, development and etching, and the material used is an expensive metal such as chromium. Therefore, the black masks 17, 33, 33a, and 43 are cheaper and easier to manufacture than the metal vapor deposition masks.

In the above-mentioned embodiments, the liquid crystal panel is of a simple matrix type, but the present invention is not limited to this, and is widely applied to liquid crystal panels having other structures such as an active matrix type. can do. Although the photosensitive resin film 15 is a positive type,
It may be a negative photosensitive resin film.

[0035]

According to the present invention, since the spacers are substantially uniformly dispersed and fixed to the photosensitive resin film constituting the substrate forming member, the spacers are not peeled off when the substrate is formed,
The substrate spacing can be controlled uniformly.

Further, according to the present invention, since the intermediate film is interposed in the substrate forming member, it is possible to prevent the diffusion of oxygen from the air which hinders the photo-curing reaction when forming the substrate. Further, since the thermoplastic resin film is interposed in the substrate forming member, it is possible to prevent bubbles from being mixed in at the time of forming the substrate. Further, since the intermediate film and the thermoplastic resin film are interposed in the substrate forming member, it is possible to prevent the thermoplastic resin film and the photosensitive resin film from being mixed with each other.

Further, according to the present invention, since the photosensitive resin film to which the spacer is fixed is formed in the area excluding the effective display area of the liquid crystal panel, it is possible to prevent the contrast from being lowered by the spacer. Since the spacer is sandwiched between the insulating substrate and the cured and fixed photosensitive resin film,
Special processing for fixing the spacer is not necessary, and display unevenness due to movement of the spacer can be eliminated.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a substrate forming member 11 that is an embodiment of the present invention.

FIG. 2 is a cross-sectional view for explaining a method of manufacturing a substrate that constitutes a liquid crystal panel according to the present invention.

FIG. 3 is an enlarged plan view showing the shape of a photomask 23.

FIG. 4 is a partially enlarged view of FIG. 2 (7).

5 is an enlarged cross-sectional view taken along the section line I-I shown in FIG. 2 (7).

FIG. 6 is a drawing for explaining the manufacturing method of the monochrome liquid crystal panel which is one embodiment of the present invention.

FIG. 7 is a diagram illustrating a method for manufacturing a monochrome liquid crystal panel that is another embodiment of the present invention.

FIG. 8 is an enlarged plan view showing the shape of a photomask 23a.

FIG. 9 is a cross-sectional view for explaining the method of manufacturing one substrate that constitutes the color liquid crystal panel according to the present invention.

FIG. 10 is a partially enlarged view of FIG. 9 (9).

FIG. 11 is an enlarged cross-sectional view taken along the section line II-II shown in FIG. 9 (9).

FIG. 12 is a drawing for explaining a method of manufacturing a color liquid crystal panel which is still another embodiment of the present invention.

FIG. 13 is a diagram for explaining a method of manufacturing a color liquid crystal panel which is still another embodiment of the present invention.

[Explanation of symbols]

11 substrate forming member 12 support 13 thermoplastic resin film 14 intermediate film 15 photosensitive resin film 16 spacers 17, 33, 33a, 43 black mask 20, 30, 30a, 30b, 30c, 40, 40a
Substrate 21, 31, 41 Transparent insulating substrate 22, 32, 42 Transparent electrode 23, 23a Photomask 24, 24a Light transmitting part 25, 25a Light shielding part 26 Alignment film 27 Color filter 28 Overcoat film

Claims (3)

[Claims] 1. A substrate forming member used when forming a pair of substrates constituting a liquid crystal panel, comprising: a film-shaped support; A substrate forming member, comprising: a plurality of spacers for holding a plurality of spacers, which are substantially evenly dispersed and fixed, and a photosensitive resin film colored in black. 2. The substrate formation according to claim 1, wherein an intermediate film having a relatively low oxygen permeability and / or a thermoplastic resin film is interposed between the photosensitive resin film and the support. Parts. 3. A method of manufacturing a liquid crystal panel comprising a liquid crystal layer interposed between a pair of substrates, wherein a pair of insulating substrates on which at least liquid crystal driving electrodes are formed are prepared, and the pair of insulating substrates is provided. To at least one of the substrates, a plurality of spacers for holding the space between the substrates were dispersed and fixed in a substantially uniform manner, and a black-colored photosensitive resin film was adhered to form a pair of insulating substrates respectively. Patterning is performed so that the photosensitive resin film to which the spacers are fixed remains in the area excluding the effective display area, which is the overlapping portion of the liquid crystal driving electrodes, and the alignment film is formed on almost the entire surface of such a pair of insulating substrates. Then, a pair of substrates is formed, the pair of substrates are attached so that the alignment films face each other, and a liquid crystal material is injected between the substrates, and a method for manufacturing a liquid crystal panel.