JPH11242227A - Liquid crystal display device and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid crystal display device which is free of alignment degradation and alignment disturbance and has excellent display uniformity, high luminance and high contrast and a process for producing the same. SOLUTION: A mixture composed of a photosensitive resin 11 which is prepd. by introducing a stibazolium group as a photosensitive group into polyvinyl alcohol and contains water as a solvent and spacers 10 of a divinyl benzene system having a diameter of about 0.005 mm is applied on the surface of an alignment layer 9 subjected to a rubbing treatment in such a manner that the final film thickness of the photoresitive resin 11 attains about 0.001 mm by a spinner method. The coating is then dried. The coating is thereafter masked ion such a manner that light does not fall onto a segment electrode 6 and segment electrode terminals. The photosensitive resin is then exposed from behind the segment substrate 1. Next, the coating is developed by a developer ob water to remove the photosensitive resin 11 of the unexposed parts and the spacers 10 mixed therein. The spacers 10 exclusive of the segment electrode terminals are then selectively fixed between the segment electrodes 6 of the segment substrate 1 and the peripheries of the display region by post curing by heating or light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device including a liquid crystal combined display with a plasma display and the like, and a method of manufacturing the same. In particular, the present invention relates to a liquid crystal device having a spacer for selectively controlling a distance between a pair of substrates. The present invention relates to a display device and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, in a liquid crystal display device for color display and monochrome display, in order to prevent a decrease in contrast due to light leakage from the spacer, dot-like spacers are provided between pixels and at positions corresponding to a light-shielding film around the display area. There have been proposed various methods for fixing the toner.

As a layer for fixing the dot-shaped spacer at a position corresponding to the light-shielding film, before orienting the alignment film, it is provided inside or on the light-shielding film, inside or on the surface of the alignment film, or on the alignment film. The inside or surface of the adhesive layer has been proposed.

In these methods, after the spacer is fixed to at least one of the substrates, the alignment film is subjected to an alignment treatment. Therefore, the spacer fixed between the pixels and at a portion corresponding to the periphery of the display area becomes a considerably large convex portion. This hinders the alignment process such as rubbing, and the alignment process cannot be performed uniformly near the spacer to lower the display contrast, or the spacer is peeled off during the alignment process. Further, even if a portion where the alignment treatment cannot be performed uniformly is covered with a light-shielding film formed to be large, there is a problem that the aperture ratio is reduced.

As a method for solving the above-mentioned problem, Japanese Patent Application Laid-Open No. Hei 6-301040 discloses a method of subjecting an alignment film to an alignment treatment and then selectively arranging an adhesive layer for fixing the spacer and the spacer by photolithography. No.
JP-A-7-270806 or JP-A-8-28
It is disclosed in US Pat.

In the method disclosed in JP-A-6-301040, as shown in FIG. 3, a mixture of a negative photosensitive resin 51 containing a black pigment and a spacer 52 is screen-printed or letterpress-printed. Shielding film 5 using
The photosensitive resin 51 and the spacer 52 are fixed between pixels and the like by exposing the light-shielding film 53 from the back surface of the substrate 54 as a photomask and developing and removing the unexposed portions. In FIG. 3, reference numeral 55 denotes a substrate on the opposite side;
Denotes an electrode, 57 denotes an alignment film, 58 denotes an insulating film, and 59 denotes a liquid crystal layer.

In the method disclosed in Japanese Patent Application Laid-Open No. Hei 7-270806, as shown in FIG. 4, a photosensitive resin 51 containing a pigment for a light-shielding film and a hot-melt resin is coated on an alignment film 57 which has been subjected to an alignment treatment. And dry and selective exposure. Then, the spacers 52 are sprayed over the entire surface and heat-treated. Next, the unexposed portion of the photosensitive resin 51 and the spacer thereon are removed with an organic alkali aqueous solution, and the photosensitive resin 51 and the spacer 52 are fixed between pixels or the like. The photosensitive resin 51 is
Negative type containing methacrylic resin and polyfunctional acrylic monomer. 4, reference numeral 54 denotes a substrate; 55, a substrate on the opposite side; 56, an electrode; 58, an insulating film; 59, a liquid crystal layer;
0 indicates a passivation film and 61 indicates a color filter layer.

In the method disclosed in Japanese Patent Application Laid-Open No. 8-286192, as shown in FIG. 5, a negative type photoresist is applied on an oriented alignment film 57, and after exposure and development, an adhesive layer 63 is formed on the entire surface. Is formed, and the unexposed portion of the negative photoresist and the adhesive layer thereon are removed to leave the adhesive layer 63 between pixels and the like, and the spacer 52 is scattered to form the adhesive layer 6.
3. Remove the spacers 52 other than those on the top by air blow or the like.
The adhesive layer 63 and the spacer 52 are fixed between pixels or the like. In FIG. 5, 53 is a light-shielding film, 54 is a substrate,
Reference numeral 5 denotes a substrate on the opposite side, 56 denotes an electrode, 58 denotes an insulating film, 59 denotes a liquid crystal layer, 61 denotes a color filter layer, and 62 denotes an overcoat film.

The above methods (1) to (4) have little detailed description on the photosensitive resin, the solvent for the photosensitive resin and the developer. However, as the photosensitive resin, an organic solvent type such as an acrylate or polyimide resin is generally used, and as the solvent, ketones such as methyl ethyl ketone, acetates such as methyl cellosolve acetate, and butyl cellosolve. Cellosolves, ethers such as propylene glycol monomethyl ether, N,
Amides such as N-dimethylformamide or N-methyl-2-pyrrolidone, aromatics such as xylene, etc., have been proposed. As the developing solution, an aqueous solution of an inorganic alkali such as sodium carbonate or sodium hydroxide, triethanolamine, etc. An organic alkali aqueous solution containing an organic base or salt has been proposed.

[0010]

The above methods (1) to (4) have the following problems.

In the prior art, it is described in the official gazette that there is an effect of cleaning the alignment film by selecting an appropriate developing solution. However, the photosensitive resin and the developing solution are used so that the alignment film after the alignment treatment is not disordered. Is not selected, there is a problem that the contrast is not sufficiently improved. In addition, the thickness of the photosensitive resin containing the black dye must be increased to satisfy the light-shielding function, and there is a problem that the cell thickness in the plane is likely to vary even though the spacers are mixed. Furthermore, since the light-shielding film having the opening is formed, the aperture ratio of the display pixel cannot be increased, and as a result, there is a problem that the luminance and the contrast cannot be improved.

The prior art has a problem that the contrast is not sufficiently improved even though the spacers are arranged between the pixels and in the periphery of the display area. This is considered to be caused by the organic solvent contained in the photosensitive resin or the alkaline aqueous solution used for developing the photosensitive resin, the alignment-treated organic alignment film being affected by swelling and the like, and the alignment is deteriorated. Further, there is a problem that a residue remains on the alignment film due to the effect of heat treatment of the heat-fusible resin, which affects the alignment and lowers the contrast. Also, since the contact area of the spacer is small, the spacer is easily peeled off during development,
Since it is difficult to obtain a desired cell thickness, there is also a problem that display uniformity is lacking. This means that simply by spraying the spacer on the surface of the photosensitive resin containing the hot-melt resin and performing heat treatment, the adhesive interface between the photosensitive resin and the spacer is affected by the alkaline aqueous solution, and a sufficient adhesive force cannot be formed. It is considered something.

In the prior art, an adhesive layer is separately provided because the photoresist has no or insufficient adhesiveness. However, there is no description about the type of the photosensitive resin and the developing solution, and it is generally difficult to select a developing solution that does not affect the adhesive layer when developing the unexposed portion of the photosensitive resin. is there. In addition, the number of processes for forming the adhesive layer is increased, and the thickness of the resin layer other than the spacer becomes considerably thick, so that it is difficult to control the cell thickness.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has high brightness and high contrast liquid crystal display device having excellent display uniformity without alignment deterioration and alignment disturbance and manufacturing thereof. It is intended to provide a way.

[0015]

According to a first aspect of the present invention, there is provided a liquid crystal display device comprising a pair of substrates on each of which an alignment film is formed. Alternatively, a light-shielding film is formed so as to correspond to a peripheral portion of a display region, and a spacer is disposed in a region other than a pixel on one of the substrates, and in a liquid crystal display device having a liquid crystal layer between the pair of substrates, Is characterized by being fixed on the alignment film by a photosensitive resin soluble in water-soluble or lower alcohols and developable with water or lower alcohols.

The liquid crystal display device according to the second aspect is the first aspect.
In the liquid crystal display device described above, the spacer is fixed between display electrodes of a substrate on which the light-shielding film is not formed or around a display region.

The liquid crystal display device according to the third aspect is the first aspect.
In the liquid crystal display device described above, the spacer is fixed to a region excluding a pixel of the substrate on which the light shielding film is formed or a peripheral portion of a display region.

According to a fourth aspect of the present invention, there is provided a liquid crystal display device.
4. The liquid crystal display device according to claim 3, wherein the spacer is not disposed on the terminal portion.

According to a fifth aspect of the invention, there is provided a method of manufacturing a liquid crystal display device, wherein an alignment film is formed on a pair of substrates, and a light-shielding film is formed on one of the substrates so as to correspond to between pixels or a peripheral portion of a display area. In one of the substrates, a spacer is arranged in a region excluding a pixel or in a peripheral portion of a display region, and in a method of manufacturing a liquid crystal display device in which a liquid crystal layer is sandwiched between the pair of substrates, a step of performing an alignment treatment on the alignment film. Disposing a mixture of a photosensitive resin and a spacer containing water or a lower alcohol as a solvent on an alignment film that has been subjected to an alignment treatment, and exposing the mixture by a photolithography technique; and Developing with water or lower alcohols.

According to the liquid crystal display device of the present invention, since the spacer is fixed on the alignment film by a photosensitive resin soluble in water-soluble or lower alcohols and developable with water or lower alcohols, rubbing is achieved. When a photosensitive resin is provided by coating or the like on a polyimide-based organic alignment film that has been alignment-treated with water or the like, water or lower alcohols contained as a solvent in the photosensitive resin are unlikely to attack the organic alignment film, and the The alignment state on the surface of the alignment film can be prevented from being disturbed. Further, when the arranged photosensitive resin is patterned and cured by a photolithography technique, and is developed by a wet method, a developing solution of water or a lower alcohol, which does not easily damage the organic alignment film, can be used. The orientation state of the film surface can be prevented from being disturbed. Therefore, the spacer can be selectively fixed on the organic alignment film that has been subjected to the alignment treatment with the patterned photosensitive resin without causing the alignment deterioration, and a liquid crystal display device with high contrast can be obtained.

Further, since the spacer is fixed between the display electrodes of the substrate on which the light-shielding film is not formed or at the periphery of the display area, the spacer is hidden in the light-shielding film area. Even if the alignment of the liquid crystal layer is disturbed in the portion, the disturbed alignment does not reach the pixel portion, and a liquid crystal display device with high contrast can be obtained.

Further, since the spacer is fixed to the region other than the pixels of the substrate on which the light-shielding film is formed or the periphery of the display region, the displacement between the light-shielding film and the spacer when a pair of substrates are bonded to each other is reduced. Thus, a liquid crystal display device with high contrast can be obtained.

Further, since the spacer is not arranged on the terminal portion, the reliability of the electrode connection between the terminal portion and the TCP or between the terminal portion and the IC chip can be improved.

According to the method of manufacturing a liquid crystal display device of the present invention, a step of subjecting the alignment film to an alignment treatment, and a step of forming a photosensitive resin containing water or a lower alcohol as a solvent and a spacer on the alignment film subjected to the alignment treatment. Disposing a mixture of the above, a step of exposing the mixture by a photolithography technique, and a step of developing the mixture with water or lower alcohols to obtain a polyimide or the like which has been subjected to an alignment treatment by rubbing or the like. When the photosensitive resin is disposed on the organic alignment film by coating or the like, water or lower alcohols contained as a solvent in the photosensitive resin is unlikely to attack the organic alignment film and disturbs the alignment state of the surface of the organic alignment film. You can not. Further, when the arranged photosensitive resin is patterned and cured by a photolithography technique, and is developed by a wet method, a developing solution of water or a lower alcohol, which does not easily damage the organic alignment film, can be used. The orientation state of the film surface can be prevented from being disturbed. Therefore, the spacer can be selectively fixed on the organic alignment film that has been subjected to the alignment treatment with the patterned photosensitive resin without causing the alignment deterioration, and a liquid crystal display device with high contrast can be obtained.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

In the liquid crystal display device according to the present invention, a photosensitive resin which is soluble in water-soluble or lower alcohols and which can be developed with water or lower alcohols is patterned on the surface of the alignment film subjected to the alignment treatment. Has been established. Specifically, examples of the material of the photosensitive resin include polyvinyl alcohol, polyacrylamide, and polyvinylpyrrolidone. Further, as a developer, water, isopropyl alcohol, propyl alcohol, n-butyl alcohol,
Isobutyl alcohol, t-butyl alcohol, ethyl alcohol, methyl alcohol, pentyl alcohol,
Examples thereof include lower alcohols such as neopentyl alcohol and a mixture of water and lower alcohols. A spacer is mixed with this photosensitive resin.

As a method for forming a mixture of the spacer and the photosensitive resin on the surface of the alignment film, a spinner method, a spray method, a flexographic plate coater method or the like can be used.

As for both substrates sandwiching the liquid crystal, electrodes are formed on a pair of substrates such as a general STN type or a TFT type, and electrodes are formed only on one side substrate such as an IPS type TFT type. There are times when you do.

As the alignment film subjected to the alignment treatment, a film formed by the rubbing method, a film formed by the optical alignment of polarized light irradiation, a film formed by the stretching method, a film formed by the LB method, and a pair of alignment films Examples include those formed by orientation hardening of a resin between processed substrates.

(Embodiment 1) FIG. 1 is a sectional view showing a schematic configuration of a color display STN type liquid crystal display panel according to the present invention. In FIG. 1, 1 is a segment substrate, 2 is a common substrate, 3 is a light shielding film, 4 is a color filter layer, 5
Is an overcoat film, 6 is a segment electrode, 7 is a common electrode, 8 is an insulating film, 9 is an alignment film, 10 is a spacer, 1
1 is a photosensitive resin, and 12 is a liquid crystal layer.

As shown in FIG. 1, the liquid crystal display panel comprises a segment substrate 1 and a common substrate 2 as a pair of substrates made of glass or the like.

On the segment substrate 1, a stripe-shaped segment electrode 6 is formed on the surface thereof, and an insulating film 8 is formed so as to cover the surface of the segment electrode 6 except for terminal portions and the like. Alignment film 9 made of polyimide
Are formed. The surface of the alignment film 9 has been rubbed. A spacer 10 is fixed by a photosensitive resin 11 on the surface of the rubbed alignment film 9 between the striped segment electrodes 6 and around the display area except for the terminal portions.

On the surface of the common substrate 2, a color filter layer 4 and a resin or metal light-shielding film 3 are formed so as to correspond to the positions of the segment electrodes 6. An overcoat film 5 having a flattening function is formed on the color filter layer 4 and the light shielding film 3. On the overcoat film 5, a striped common electrode 7 is formed. Further, an alignment film 9 made of polyimide is formed so as to cover the surface of the common electrode 7. The surface of the alignment film 9 has been rubbed.

In the periphery of the display area of the common substrate 2,
An epoxy resin is applied by a dispenser method or a screen printing method and dried to form a seal portion.
Then, after heating and pressing or low-temperature pressing, heating is performed to cure the seal portion. Thereafter, the liquid crystal layer 12 is filled from the cutout portion of the seal portion, and the excess liquid crystal is extruded under pressure, and then the liquid crystal injection port is sealed with a photocurable resin.

The method of fixing the spacer 10 with the photosensitive resin 11 will be described in detail. An alignment film 9 made of polyimide is applied to the surface of the segment substrate 1 on which the insulating film 8 is formed by an offset printing method, and baked. Next, the surface of the alignment film 9 is rubbed with a nonwoven fabric or the like. Next, on the surface of the rubbed alignment film 9, a photosensitive resin 11 containing water as a solvent in which a stilbazolium group is introduced as a photosensitive group into polyvinyl alcohol, and a divinylbenzene-based spacer 10 having a diameter of about 0.005 mm. And the final thickness of the photosensitive resin 11 is about 0.001 m by a spinner method.
m and dried.

Then, masking is performed so that light does not hit the segment electrode 6 and the segment electrode terminal portion.
Exposure is performed from the back of the segment substrate 1. Next, development is performed with a developing solution of water to remove the unexposed portion of the photosensitive resin 11 and the spacer 10 mixed therein. Thereafter, post-curing is performed by heating or light to selectively fix the spacers 10 between the segment electrodes 6 of the segment substrate 1 and around the display area except for the segment electrode terminal portions. The distribution density of the spacers 10 is 50 to 300 spacers / mm ² .

A color display STN type liquid crystal display device was manufactured in this manner, and the alignment state and the display contrast were evaluated. The results are shown in Table 1.

(Embodiment 2) A color display STN type liquid crystal display device is manufactured in the same manner as in Embodiment 1 except that isopropyl alcohol is used instead of water as a solvent, and the alignment state and display contrast are evaluated. Table 1 shows the results.

(Embodiment 3) A color display STN type liquid crystal display device is the same as Embodiment 1, except that a mixed solution of water and isopropyl alcohol at a weight ratio of 5: 1 is used instead of water as a solvent. It was fabricated and evaluated for the alignment state and the display contrast. The results are shown in Table 1.

Comparative Example 1 Instead of a photosensitive resin containing water as a solvent in which a stilbazolium group was introduced as a photosensitive group into polyvinyl alcohol, a ketone photosensitive resin containing methyl ethyl ketone as a solvent in an acrylate resin was used. And an aqueous solution of sodium carbonate is used instead of water as a developer. Then, an oxygen barrier film made of polyvinyl alcohol is formed on the photosensitive resin, and after exposure, oxygen is removed with a triethanolamine aqueous solution. Otherwise, a color display STN type liquid crystal display device was manufactured in the same manner as in Embodiment 1, and the alignment state and the display contrast were evaluated. The results are shown in Table 1.

Comparative Example 2 Amides containing N-methyl-2-pyrrolidone as a solvent in a polyimide resin instead of a photosensitive resin containing water as a solvent in which a stilbazolium group was introduced as a photosensitive group into polyvinyl alcohol. Using a photosensitive resin, instead of water as a developer, a weight ratio of 7:
A color display STN type liquid crystal display device was prepared in the same manner as in Embodiment 1 except that a mixture of 2: 1 N-methyl-2-pyrrolidone, xylene and water was used, and the alignment state and display contrast were evaluated. Table 1 shows the results.

(Embodiment 4) FIG. 2 is a sectional view showing a schematic configuration of another color display STN type liquid crystal display panel according to the present invention.

As shown in FIG. 2, the liquid crystal display panel includes a segment substrate 1 and a common substrate 2 as a pair of substrates made of glass or the like.

On the common substrate 2, a color filter layer 4 and a lattice-shaped light-shielding film 3 made of resin or metal are formed on the surface of the common substrate 2 so as to correspond to the positions of the pixels. An overcoat film 5 having a flattening function is formed on the color filter layer 4 and the light shielding film 3. On the overcoat film 5, a striped common electrode 7 is formed. Further, an alignment film 9 made of polyimide is formed so as to cover the surface of the common electrode 2. The surface of the alignment film 9 is rubbed. A spacer 10 is fixed on the surface of the rubbed alignment film 9 by a photosensitive resin 11 in a grid pattern having a width equal to or less than the width of the light-shielding film 3 except for a terminal portion.

On the segment substrate 1, a stripe-shaped segment electrode 6 is formed on the surface thereof, and an insulating film 8 is formed so as to cover the surface of the segment electrode 6 except for terminal portions and the like. Alignment film 9 made of polyimide
Are formed. The surface of the alignment film 9 has been rubbed.

An epoxy resin is applied to the periphery of the display area of the segment substrate 1 by a dispenser method or a screen printing method and dried to form a seal portion.
Then, after heating and pressing or low-temperature pressing, heating is performed to cure the seal portion. Thereafter, the liquid crystal layer 12 is filled from the cutout portion of the seal portion, and the excess liquid crystal is extruded under pressure, and then the liquid crystal injection port is sealed with a photocurable resin.

The method of fixing the spacer 10 with the photosensitive resin 11 will be described in detail. An alignment film 9 made of polyimide is applied to the surface of the common substrate 2 on which the color filter layer 4, the light-shielding film 3, the overcoat film 5, and the common electrode 7 are sequentially formed by an offset printing method and baked. Next, the surface of the alignment film 9 is rubbed with a nonwoven fabric or the like. next,
A photosensitive resin 1 containing isopropyl alcohol as a solvent in which a stilbazolium group is introduced as a photosensitive group into polyvinyl alcohol on the surface of the rubbed alignment film 9
1 and a mixture of a silica-based spacer 10 coated with an adhesive resin having a diameter of about 0.005 mm is applied by a spinner method so that the final film thickness of the photosensitive resin 11 is about 0.001 mm, and dried. I do.

Then, the photosensitive resin 11 on the light shielding film 3
Exposure is performed using a mask that irradiates light to a width equal to or less than the width of the light shielding film 3. Next, development is performed with a developer composed of a mixture of water and isopropyl alcohol at a weight ratio of 5: 1 to remove the unexposed portion of the photosensitive resin 11 and the spacer 10 mixed therein. Thereafter, post-curing is performed by heating or light, so that the spacer 10 is selectively fixed to the area excluding the pixels except for the terminal portions and the periphery of the display area. The distribution density of the spacer 10 is 50 to 30.
0 / mm ² .

In this way, a color display STN type liquid crystal display device was manufactured, and the alignment state and the display contrast were evaluated. The results are shown in Table 1.

[0050]

[Table 1]

As shown in Table 1, Embodiments 1 and 2 using water or lower alcohols as a solvent for the photosensitive resin and water or a mixed solution of water and lower alcohols as a developer for the photosensitive resin. 4 shows good results in both the alignment state and the contrast. The other comparative example 2 showed a slightly good result, but the comparative example 1 was bad.

[0052]

As described above, according to the liquid crystal display device of the present invention, the spacer is formed on the alignment film by the photosensitive resin in which the spacer is soluble in water-soluble or lower alcohols and can be developed with water or lower alcohols. When the photosensitive resin is provided on the alignment film subjected to the alignment treatment by coating or the like, the alignment state on the surface of the alignment film can be prevented from being disturbed. In addition, when the photosensitive resin provided is patterned and cured by a photolithography technique and developed by a wet method, the alignment state of the surface of the organic alignment film can be prevented from being disturbed. Therefore, the spacer can be selectively fixed on the alignment film that has been subjected to the alignment treatment by the patterned photosensitive resin without causing the alignment deterioration, and a liquid crystal display device with high contrast can be obtained.

Further, since the spacer is fixed between the display electrodes of the substrate on which the light-shielding film is not formed or at the periphery of the display area, the spacer is hidden behind the light-shielding film area. Even if the alignment of the liquid crystal layer is disturbed in the portion, the disturbed alignment does not reach the pixel portion, and a liquid crystal display device with high contrast can be obtained.

Further, since the spacer is fixed to a region other than the pixels of the substrate on which the light-shielding film is formed or a peripheral portion of the display region, the displacement between the light-shielding film and the spacer when a pair of substrates are bonded to each other is reduced. Thus, a liquid crystal display device with high contrast can be obtained.

Further, since the spacer is not arranged at the terminal portion, the reliability of the electrode connection between the terminal portion and the TCP or between the terminal portion and the IC chip can be improved.

According to the method of manufacturing a liquid crystal display device of the present invention, the step of subjecting the alignment film to an alignment treatment, and the step of forming a photosensitive resin containing water or a lower alcohol as a solvent and a spacer on the alignment film subjected to the alignment treatment. Disposing a mixture of the above, a step of exposing the mixture by a photolithography technique, and a step of developing the mixture with water or lower alcohols, whereby a photosensitive layer is formed on the alignment film that has been subjected to the alignment treatment. When the resin is provided by coating or the like, the alignment state on the surface of the alignment film can be prevented from being disturbed. Also, when the arranged photosensitive resin is patterned and cured by photolithography technology and developed by a wet method,
The alignment state on the surface of the alignment film can be prevented from being disturbed. Therefore, the spacer can be selectively fixed on the alignment film that has been subjected to the alignment treatment by the patterned photosensitive resin without causing the alignment deterioration, and a liquid crystal display device with high contrast can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a schematic configuration of a color display STN type liquid crystal display panel according to the present invention.

FIG. 2 is a sectional view showing a schematic configuration of another color display STN type liquid crystal display panel according to the present invention.

FIG. 3 is a cross-sectional view illustrating a schematic configuration of a liquid crystal display device according to the related art.

FIG. 4 is a cross-sectional view illustrating a schematic configuration of a liquid crystal display device according to the related art.

FIG. 5 is a cross-sectional view illustrating a schematic configuration of a liquid crystal display device according to the related art.

[Explanation of symbols]

 Reference Signs List 1 segment substrate 2 common substrate 3 light shielding film 4 color filter layer 5 overcoat film 6 segment electrode 7 common electrode 8 insulating film 9 alignment film 10 spacer 11 photosensitive resin 12 liquid crystal layer 51 photosensitive resin 52 spacer 53 light shielding film 54 substrate 55 Opposite substrate 56 Electrode 57 Alignment film 58 Insulating film 59 Liquid crystal layer 60 Passivation film 61 Color filter layer 62 Overcoat film 63 Adhesive layer

Claims (5)

[Claims] 1. A light-shielding film is formed on a pair of substrates on which an alignment film is formed, and a light-shielding film is formed on one of the substrates so as to correspond to a portion between pixels or a peripheral portion of a display area. In a liquid crystal display device having a spacer disposed in a region and having a liquid crystal layer between the pair of substrates, the spacer is made of a photosensitive resin soluble in water-soluble or lower alcohols and developable with water or lower alcohols. A liquid crystal display device fixed on the alignment film. 2. The liquid crystal display device according to claim 1, wherein the spacer is fixed between display electrodes of a substrate on which the light-shielding film is not formed or around a display area. 3. The liquid crystal display device according to claim 1, wherein the spacer is fixed to a region other than a pixel of the substrate on which the light shielding film is formed or a periphery of a display region. 4. The liquid crystal display device according to claim 1, wherein the spacer is not disposed on a terminal portion. 5. An alignment film is formed on a pair of substrates, and a light-shielding film is formed on one of the substrates so as to correspond to a region between pixels or a peripheral portion of a display region. In a method for manufacturing a liquid crystal display device in which a spacer is arranged around a display area and a liquid crystal layer is sandwiched between the pair of substrates, a step of performing an alignment treatment on the alignment film; and Disposing a mixture of a photosensitive resin containing water or lower alcohols as a solvent and a spacer; exposing the mixture by a photolithography technique; and developing the mixture with water or lower alcohols. A method for manufacturing a liquid crystal display device, comprising: