JP2009210970A - Method for manufacturing liquid crystal panel, and liquid crystal panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal panel which follows an environmental temperature so as to uniformly maintain a cell gap by a spacer which is not plastically deformed against local pressure. <P>SOLUTION: The liquid crystal panel includes a first substrate and a second substrate disposed opposite thereto, wherein a spacer is formed on one of the first and the second substrates, and the first and the second substrates are stuck to each other so that a space S is formed therebetween and then a liquid crystal 21 is encapsulated in the space. The spacer 18 includes a bottom surface part fixed to the surface of one substrate 12, an erection part erected from the bottom surface part and having a prescribed height and a top part side formed on a top part of the erection part, and a protruding spacer 18 having at least two projecting parts 181 and 182 and one recessed part 180 is formed on the top side part, and the projecting parts 181 and 182 of the protruding spacer are stuck to the other substrate 2 while they come in contact with the substrate 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a method for manufacturing a liquid crystal panel and a liquid crystal panel, and more particularly, a method for manufacturing a liquid crystal panel in which the shape of a photo spacer is devised to smoothly apply a liquid crystal alignment film coating process and a rubbing process in the panel manufacturing process. The present invention relates to a liquid crystal panel.

In recent years, electronic devices of portable information terminals such as personal computers and mobile phones have often used liquid crystal panels as their display devices. This liquid crystal panel uses two first and second substrates each having a predetermined electrode pattern and the like formed on opposite surfaces, and the first and second substrates are interposed with a sealant therebetween. And a space of a predetermined size is formed between them, and liquid crystal is sealed in this space.

In this liquid crystal panel, the gap between the first and second substrates, the so-called cell gap, is controlled to be uniform by interposing a small spherical spacer. This spherical spacer
In the manufacturing process of the liquid crystal panel, before the first and second substrates are bonded together, they are arranged by being sprayed on the inner surface of one of the substrates. However, if such a spherical spacer is used, the diameter of the panel is relatively large, and the arrangement position cannot be adjusted because it is arranged by spraying on the substrate, so that the aperture ratio of the panel is lowered. End up. In addition, when the spherical spacers are dispersed, there is a problem that the arrangement positions are unevenly distributed, the dispersion density varies, and the cell gap varies.

Therefore, instead of such a spherical spacer, a columnar spacer (photo spacer) is used to fix the base of the columnar spacer to one substrate, and the tip extending from the base is brought into contact with the other substrate. A liquid crystal panel that controls the cell gap between the two substrates has been proposed (see, for example, Patent Documents 1 and 2 below).

FIG. 8 shows a color filter substrate constituting a liquid crystal panel disclosed in Patent Document 1 below,
8A is a partial plan view of the color filter substrate, and FIG. 8B is an enlarged view of a part of FIG. 8A. Hereinafter, a liquid crystal panel disclosed in Patent Document 1 described below will be described with reference to FIG.

The liquid crystal panel disclosed in Patent Document 1 below includes a pixel electrode and a thin film transistor (TFT).
) And a color filter substrate (hereinafter simply referred to as “CF substrate”) 30 having a color filter or the like formed on a surface facing the array substrate. In addition, black matrixes 31 and 31 having a predetermined width a are formed on the CF substrate 30, and columnar body spacers 33 having a predetermined shape are formed in orthogonal portions 32 where the black matrices 31 and 31 are orthogonal to each other. The planar shape of the columnar spacer 33 viewed from above is a square, rhombus, circle, or ellipse, as seen in FIG. 8B. This columnar body spacer 33 solves the problems of conventional spherical spacers.

Patent Document 2 listed below has a length in the longitudinal direction and a width length and a height orthogonal to the longitudinal direction, and the length in the longitudinal direction is made larger than the width length in order to reduce disorder of orientation. A liquid crystal panel using a cuboid spacer is disclosed. In addition, since the length of this longitudinal direction is larger than the width length, this spacer is also called an anisotropic spacer.
JP 2000-131701 ([0014] to [0018], FIG. 1 and FIG. 3) Japanese Patent Laid-Open No. 10-319413 ([0021] to [0026], FIGS. 8 and 11)

According to the spacers formed in the liquid crystal panels of Patent Documents 1 and 2, the problems of the spherical spacer can be solved, and the cell gap can be kept uniform.

However, in the liquid crystal panel, the liquid crystal may be thermally expanded and contracted due to the influence of heat depending on the use environment, or a large local force may be applied to the substrate when the substrates are bonded in the manufacturing process. In particular, when a large local pressure is applied, the columnar spacer is plastically deformed beyond the elastic limit and cannot be restored to its original shape. As a result, the predetermined gap may not be maintained. . Therefore, the spacer needs to have resistance to such thermal expansion and contraction and a predetermined mechanical strength. As a method for reinforcing such mechanical strength, it is conceivable to increase the number and area of spacers made of columnar bodies. However, liquid crystal panels in recent years tend to be small in size and high in definition. Since the individual pixel regions are minimized, it has become extremely difficult to increase the number and area of spacers. That is, in recent years
A liquid crystal panel used for a portable terminal or the like is required to have high resolution, high luminance, and low power consumption in addition to downsizing, and therefore, there is a shortage of places (non-opening portions) for arranging spacers.

In addition, if the spacers are columnar in the alignment film application process and the rubbing process of the panel manufacturing process, the flow of the alignment film material may be interrupted when the alignment film is applied, which may cause uneven coating. Further, when this alignment film is rubbed, there is a problem that the rubbing cloth wound around the rubbing roller may be damaged.
In particular, in the case of the anisotropic spacer described in Patent Document 2, if a certain degree of strength is to be ensured, the difference between the length in the longitudinal direction and the width in the direction orthogonal to the longitudinal direction becomes large. Then, when the alignment film is applied, the anisotropic spacer plays a role like a bank and blocks the alignment film. Further, the contact area between the rubbing cloth and the spacer also increases during the rubbing treatment.

The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a liquid crystal panel that can smoothly perform an alignment film coating process and a rubbing process in a panel manufacturing process. It is in providing the manufacturing method of.

Another object of the present invention is to provide a liquid crystal panel that can follow a thermal expansion and contraction due to a change in environmental temperature and that can maintain a uniform cell gap with a spacer that does not plastically deform even when subjected to local pressure. It is in.

In order to achieve the above object, a method for manufacturing a liquid crystal panel according to the present invention includes the following steps in a method for manufacturing a liquid crystal panel in which a first substrate and a second substrate are bonded to each other. A method for manufacturing a liquid crystal panel.
(1) A protruding spacer having a bottom surface portion on the surface of the first substrate and having at least two protruding portions and one trough portion on the top side of the standing portion standing from the bottom surface portion is formed. Process,
(2) applying an alignment film to the first substrate on which the protruding spacers are formed;
(3) a step of rubbing the applied alignment film;
(4) A sealant is applied around the display area of one of the first and second substrates, and a space between the first and second substrates is provided by interposing the protruding spacer between the two substrates. Forming and bonding,
(5) A step of enclosing liquid crystal in the space.

According to the manufacturing method of the liquid crystal panel, in the spacer forming step (1), after forming at least two protrusions and one trough on the top side of the protruding spacer, the alignment film application step (next step)
When the alignment film is applied in 2), the alignment film is diffused to the substrate surface through the valleys of the projecting spacers, so that the alignment film is not blocked by the spacers, and uneven coating of the alignment film does not occur. A film can be formed smoothly. In the next rubbing treatment step (3), since the contact area with the rubbing roller is reduced, the rubbing cloth wound around the rubbing roller is not caught by the spacer, and damage to the rubbing cloth can be prevented. Furthermore, the liquid crystal panel manufactured through such a configuration can maintain a uniform cell gap because the protrusions on the top side come into contact with other substrates. Furthermore, the protruding spacer follows the protrusion against the thermal expansion and contraction of the liquid crystal, and when a large local force is applied, the protruding portion is compressed even if the protruding portion is compressed. It is possible to prevent excessive deformation by striking and prevent plastic deformation of the spacer.

In the liquid crystal panel manufacturing method, it is preferable that the protruding spacer bends a corner portion or a corner portion of the protruding portion.

According to the preferable aspect, the rubbing cloth or the like wound around the rubbing roller is not caught by the spacer during the rubbing treatment, and damage to the rubbing cloth or the like can be prevented.

In the liquid crystal panel manufacturing method, a color filter layer is provided on a substrate on which the protruding spacers are formed, and the protruding spacers are formed by laminating these color materials by selecting a color material to be used in the color filter layer. Preferably formed.

According to the preferable aspect, when the color filter substrate is manufactured, it is possible to easily create the color filter layer without using a special material with the color material for forming the color filter layer.

The liquid crystal panel of the present invention includes a first substrate and a second substrate disposed to face the first substrate,
In a liquid crystal panel in which a spacer is formed on one of the second substrates and bonded so that a space is formed between the first and second substrates, and then liquid crystal is sealed in the space. The spacer includes a bottom surface portion fixed to a surface of one of the first and second substrates, a standing portion having a predetermined height standing from the bottom surface portion, and the standing configuration. A projecting spacer having at least two projecting portions and one trough portion on the top side, and each projecting portion of the projecting spacer is formed on the top side. It is characterized by being bonded in contact with another substrate.

According to the liquid crystal panel, since at least two protrusions on the top side are bonded to each other in contact with another substrate, these protrusions follow the thermal expansion and contraction of the liquid crystal. The gap between both substrates is kept uniform. In addition, when a large local force is applied, even if the protrusion is compressed, the valley between the two protrusions abuts against the substrate to prevent excessive deformation and prevent plastic deformation of the spacer.

Hereinafter, the best embodiment of the present invention will be described with reference to the drawings. However, the embodiments described below exemplify a liquid crystal panel manufacturing method and a liquid crystal panel for embodying the technical idea of the present invention, and are not intended to specify the present invention. Other embodiments within the scope of the claims are equally applicable.

FIG. 1 is a plan view showing display pixels on a TFT array substrate on which TFTs are mounted. FIG. 1 shows protruding spacers arranged on the color filter substrate for convenience of explanation. 2 is a plan view showing the arrangement of the protruding spacers on the color filter substrate, FIG. 3 is a schematic view of the protruding spacers in FIG. 2, and FIG. 4 is a diagram of various spacers showing modifications of the protruding spacers in FIG. FIG. 5 is a schematic view, and FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a process diagram for manufacturing individual panels from a mother substrate.
FIG. 7A is an alignment film coating apparatus, and FIG. 7B is a schematic view of a rubbing apparatus.

As shown in FIGS. 1 and 5, the liquid crystal panel 1 according to the embodiment of the present invention includes a thin film transistor (hereinafter referred to as an active element) at an intersection of the gate wiring 4 and the source wiring 6 arranged in a matrix. TFT as a first substrate provided with 10)
A color filter substrate (hereinafter simply referred to as “C”) as a second substrate having an array substrate (hereinafter simply referred to as “array substrate”) 2 and a color filter layer 15 disposed opposite to the array substrate 2.
12). Protruding spacers 18 are formed on the CF substrate 12. The protruding spacer 18 has a bottom surface portion 18a having a predetermined area on the bottom side, and a standing portion 18b standing from the bottom surface portion 18a, and the top side of the standing portion 18b is at least two.
It is formed of two mountain-shaped projections 181 and 182 and one valley portion 180 formed between the mountain-shaped projections 181 and 182 (see FIG. 3).

On the CF substrate 12 and the array substrate 2 on which the protruding spacers 18 are formed, a sealing material (not shown) is applied around the display area of one of the substrates, and a space S is formed between the substrates. In this way, the liquid crystal 21 is injected into the space S after pasting and curing the sealing material. A specific configuration will be described below.

In the array substrate 2, gate wirings 4 and source wirings 6 (see FIG. 1) are arranged on a glass substrate 3 at a predetermined interval in a matrix form, and the gate wirings arranged in this matrix form. A plurality of regions surrounded by 4 and the source wiring 6 are display pixels P. Each display pixel P includes a gate wiring 4, a source wiring 6, a TFT 10, a pixel electrode 11, and the like that are connected to an external drive circuit and also serve as a gate electrode.

In FIG. 5, the array substrate 2 includes a gate wiring 4 formed on a glass substrate 3, a gate insulating film 5 formed thereon, a source wiring 6 formed thereon, and both gate wirings. 4
A TFT 10 (see FIG. 1) is formed in the vicinity of the intersection where the source wiring 6 and the source wiring 6 intersect. Further, the TFT 10 is connected to the pixel electrode 11 through a drain electrode (not shown), which is covered with a protective insulating film 7, and an alignment film 8 is formed on the protective insulating film 7. Yes.

In the CF substrate 12, a black matrix 14 is formed in a matrix shape on the glass substrate 13 so as to cover the gate wiring 4, the source wiring 6 and the TFT 10 of the array substrate 2, and a predetermined area is surrounded by the black matrix 14. A color filter layer 15 made of a color is formed. Further, an insulating protective film 16 and a common electrode 1 are formed on the color filter layer 15.
7 are laminated in order.

On the common electrode 17, a protruding spacer 18 is erected toward the array substrate 2. The protruding spacer 18 is on the black matrix 14 and is formed for each display pixel P as shown in FIG. As shown in FIG. 3, each protruding spacer 18 includes a bottom surface portion 18a having a longitudinal length X fixed to the surface of the CF substrate 12 and a width length Y perpendicular to the longitudinal direction, and the bottom surface portion. And a top side 18c of the upright portion 18b, as shown in FIG. 3, is a symmetrical mountain-shaped protrusion 181;
182 and a valley portion 180 having a predetermined depth between both protrusions 181 and 182. That is, it is formed in a shape in which a trough portion 180 is provided in an anisotropic spacer having a length X in the longitudinal direction and a width length Y orthogonal to the longitudinal direction. The depth of the valley portion 180 is set to a depth that is recessed by ΔZ from the apexes of the protrusion portions 181 and 182. The protruding spacer 18 is made of an acrylic transparent photosensitive agent. The protruding spacer 18 is also called a photo spacer because it is made of a photosensitive agent. Further, the protruding spacer 18 is rounded by curving the corner portion or the corner portion of the standing portion 18b and the top side 18c,
It is preferable that the whole is a curved surface. When rounded in this way, the rubbing cloth or the like is not caught and damaged at the corner or corner during rubbing.

In the CF substrate 12, an alignment film 19 is formed on the surface facing the array substrate 2 after the protruding spacers 18 are formed. The array substrate 2 and the CF substrate 12 are coated with a sealing material (not shown) around the display area of the array substrate 2, and the protrusions 181 and 182 of the protrusion spacer 18 are formed on the array substrate 2. The substrates are bonded so that a space S of a predetermined size is formed between the substrates 2 and 12 in contact with the surface. After the two substrates 2 and 12 are bonded together, the liquid crystal 21 is injected into the space S. Polarizing plates 9 and 20 for polarizing incident light are disposed on the outer surfaces of the glass substrates 3 and 13 to complete the assembly of the liquid crystal panel 1.

According to the liquid crystal panel 1 of this embodiment, the projections 181 and 182 of the top side 18c of the projection-like spacer 18 provided on the CF substrate 12 side are bonded in a state of being in contact with the array substrate 2 to be uniform. Cell gap is maintained. Further, the protruding spacer 18 is
The protrusions 181 and 182 follow the thermal expansion and contraction of the liquid crystal 21, and when a large local force is applied, the valleys 180 are formed in the array substrate 2 even if the protrusions are compressed. The spacer is prevented from being excessively deformed and plastic deformation of the spacer is prevented.

The protruding spacer 18 is not limited to the above shape, and may be changed to various shapes.
For example, a trapezoidal spacer 18A having a trapezoidal shape in cross-sectional view (see FIG. 4A), a trapezoidal spacer 18B having three mountain-shaped protrusions 181 to 183 and two valley portions 180 and 180 (
(See FIG. 4B). For these protruding spacers 18A and 18B, a spacer having a predetermined shape can be selected in accordance with the shape of the light shielding member that shields light, so that the substrate design is facilitated. Also, the mechanical strength is increased. Further, the protruding spacer 18 may be provided on the array substrate side 2. Furthermore, as shown in FIG.
Although an example in which each display pixel P is provided has been described, a plurality of pixels may be grouped and arranged one by one for each group.

Next, a manufacturing method of the liquid crystal panel 1 having the above configuration will be described with reference to FIGS.

The liquid crystal panel 1 is manufactured using a large mother substrate that can form a plurality of panels at a time. First, a mother substrate made of two large-sized glasses, that is, a TFT mother substrate for an array substrate and a CF mother substrate for a CF substrate are prepared (steps S1 and S7).

The surface of the TFT mother substrate is divided into individual liquid crystal cells, and a plurality of gate lines 4 and source lines 6 are arranged in a matrix in each of the divided display areas. A TFT 10 is provided at the intersection of the source lines 6. These are formed by patterning various electrodes (step S2). A protective insulating film 7 is formed on these electrodes, and an alignment film 8 is formed thereon.

The alignment film 8 is rubbed (steps S3 to S5). This rubbing process is called T
An alignment film 8 made of an organic polymer material such as polyimide resin is formed on the FT mother substrate, and a rubbing cloth made of fibers such as felt or cotton is applied to the surface of the alignment film 8 made of resin under a predetermined load. Is done by rubbing in a certain direction. In the next step S6,
A sealing material is applied to the periphery of the display area of each cell section. As this sealing material, a known material such as a thermosetting resin such as an epoxy adhesive or an ultraviolet curable resin is used, and is applied by a dispenser system or a screen printing system.

The other CF mother substrate has its surface divided into individual liquid crystal cells, a black matrix 14 and a color filter 15 are formed in the divided individual regions, and an insulating layer is formed thereon. The protective film 16 and the common electrode 17 are formed (Step S8).
, S9).

Next, in step S <b> 10, the protruding spacer 18 is formed on the common electrode 17.
As shown in FIG. 3, the protruding spacer 18 includes a bottom surface portion 18 a having a longitudinal length X fixed to the CF substrate 12 surface and a width length Y orthogonal to the longitudinal direction, and the bottom surface portion 18.
a standing portion 18b having a height Z standing from a and a top side 1 formed on the top portion of the standing portion 18b.
8c. Note that reference numerals 18b ′ and 18b ′ described in FIGS. 3B and 3C are used.
Indicates a side wall surface. As shown in FIG. 3, the top side 18 c is a symmetrical mountain-shaped protrusion 1.
81 and 182 and a trough portion 180 having a predetermined depth located between the projecting portions 181 and 182. The depth of the valley portion 180 is set to a depth that is recessed by ΔZ from the top portions of the protrusion portions 181 and 182, and when bonded to the array substrate 2, a gap is formed between the valley portion 180 and the surface of the array substrate 2. g is formed (see FIG. 5). The relationship between the length X and the width length Y is set such that X> Y. Further, the height Z is set to a height that forms a cell gap. The protruding spacer 18 has an anisotropic shape by having these dimensions. The projecting spacer 18 is formed by, for example, forming an acrylic transparent photosensitive agent on the upper side of the common electrode 17 to have a desired film thickness by spin coating, performing activation pattern exposure, developing with an alkaline developer, washing with water, and Heat treatment is performed to form a photo spacer. Further, in place of the acrylic transparent photosensitive agent, any two color layers are selected from the resin materials composed of colors such as red, blue, and green used as the color filter layer 15, and the selected resin material is selected. A method of forming a spacer by stacking may be employed.

In the CF mother substrate, after the protruding spacers 18 are formed, an alignment film 19 is formed on the substrate surface (step S11). The alignment film 19 is formed by using an alignment film coating apparatus 22 as shown in FIG. The coating apparatus 22 includes a plate cylinder 23, and a CF mother substrate travels on the plate cylinder 23, that is, the glass substrate 13 of FIG. In this film formation, the alignment film material is the valley 1 of the protruding spacer 18.
Since it is diffused to the substrate surface through 80, the alignment film material is smoothly applied without causing printing unevenness.

Thereafter, the alignment film 19 is rubbed (step S12). This rubbing process is performed using a rubbing device 24 as shown in FIG. 7B, for example. The rubbing device 24 is a known device, and includes a rotating roll 26 around which a rubbing cloth 25 made of a fiber such as felt or cotton is wound.
The glass substrate 13 of FIG. 2 is sent from the direction of arrow B, and the surface of the alignment film 19 is subjected to alignment treatment by rubbing a rubbing cloth against the surface of the alignment film material in a predetermined direction under a predetermined load. At the time of this rubbing treatment, the protruding spacer 18 has a shape having the valley portion 180 as described above, so that the portion directly in contact with the protruding spacer 18 is reduced, and the protruding spacer 18 is wound around the rotary roll 26. The rubbing cloth 25 or the like is not caught by the protruding spacer 18 and the rubbing cloth or the like can be prevented from being damaged.

Thereafter, in step S13, the TFT mother substrate and the CF mother substrate are bonded together to cure the sealing material. The sealing material is cured by applying heat in accordance with the material to be used. Since both the substrates are provided with the protruding spacers 18 between them, a uniform cell gap g is maintained between the two substrates. After the two substrates are bonded together, both the bonded mother substrates are divided into individual cells (step S14). This division is performed, for example, by combining a scribe method and a break method. Thereafter, the liquid crystal 21 is injected into the individual cell from a previously formed injection port (not shown), and then the injection port is sealed with a sealing material to complete the liquid crystal panel 1 (steps S15 to S17). .

According to this manufacturing method, in the spacer formation step (S10), after forming the concavity and convexity connecting at least two mountain-shaped protrusions 181 and 182 and one valley portion 180 on the top side 18c of the protrusion-shaped spacer 18, When the alignment film material is applied in the application process (step S11) of the alignment film 19 in the next process, the alignment film 19 is diffused to the substrate surface through the valleys 180 of the protruding spacers 18. Printing is performed smoothly without causing printing unevenness, and the display quality is improved. Further, in the next rubbing treatment step (step S12), the rubbing cloth wound around the rubbing roller is not caught by the protruding spacer 18, and the cloth can be prevented from being damaged. Further, in the manufactured liquid crystal panel 1, the mountain-shaped protrusions 181 and 182 of the top side 18c come into contact with the array substrate 2 to maintain a uniform cell gap, and follow the thermal expansion and contraction of the liquid crystal 21, Further, when a large local force is applied, even if the protrusions 181 and 182 are compressed, the troughs 180 abut against the array substrate 2 to prevent excessive deformation, and the protrusion spacer 1
8 plastic deformation is prevented.

In the present embodiment, the case where there are two protrusions of the protruding spacer has been described.
Even when the number of the protrusions is one, the same effect as that shown in the embodiment can be obtained.

FIG. 1 is a plan view showing display pixels on a TFT array substrate on which TFTs are mounted. FIG. 2 is a plan view showing the arrangement of spacers on the color filter substrate. FIG. 3 is a schematic view of the spacer of FIG. FIG. 4 is a schematic view showing a modification of the protruding spacer. FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a process diagram for manufacturing individual panels from a mother substrate. FIG. 7A is an outline view of an alignment film coating apparatus, and 7B is a schematic view of a rubbing treatment apparatus. 8 shows a conventional liquid crystal panel, FIG. 8A is a plan view of the liquid crystal panel, and FIG. 8B is a partial cross-sectional view through the gate bus line of the liquid crystal panel.

Explanation of symbols

1: Liquid crystal panel 2: TFT array substrate 3: Glass substrate 4: Gate wiring 5: Gate insulating film 6: Source wiring 7: Protective insulating film 8: Alignment film 9: Polarizing plate 10: Thin film transistor (TFT) 11: Pixel electrode 12 : Color filter substrate 13: Glass substrate 1
4: Black matrix 15: Color filter 16: Insulating protective film 17: Common electrode,
18: Protruding spacer 18a: Bottom portion 18b Standing portion 18c: Top side 181, 1
82: Protruding portion 180: Valley portion 19: Alignment film 20: Polarizing plate 21: Liquid crystal 22: Alignment film coating device 23: Plate cylinder 24: Rubbing processing device 25: Rubbing cloth 26: Rotating roll P: Display pixel S: Space

Claims (4)

A method for manufacturing a liquid crystal panel comprising a first substrate and a second substrate bonded together, comprising the following steps.
(1) A protruding spacer having a bottom surface portion on the surface of the first substrate and having at least two protruding portions and one trough portion on the top side of the standing portion standing from the bottom surface portion is formed. Process,
(2) applying an alignment film to the first substrate on which the protruding spacers are formed;
(3) a step of rubbing the applied alignment film;
(4) A sealant is applied around the display area of one of the first and second substrates, and a space between the first and second substrates is provided by interposing the protruding spacer between the two substrates. Forming and bonding,
(5) A step of enclosing liquid crystal in the space. The method of manufacturing a liquid crystal panel according to claim 1, wherein the protruding spacer curves a corner portion or a corner portion of the protruding portion. A color filter layer is provided on a substrate on which the protruding spacers are formed, and the protruding spacers are formed by selecting color materials used in the color filter layer and laminating these color materials. Item 2. A method for producing a liquid crystal panel according to Item 1. A first substrate and a second substrate disposed opposite to each other, wherein a spacer is formed on one of the first and second substrates to form a space between the first and second substrates In the liquid crystal panel in which liquid crystal is sealed in the space after being bonded as described above,
The spacer includes a bottom surface portion fixed to the surface of one of the first and second substrates, a standing portion having a predetermined height standing from the bottom surface portion, and the standing portion. A protrusion spacer having at least two protrusions and one trough on the top edge, and each protrusion of the protrusion spacer is the other. A liquid crystal panel, which is attached in contact with the substrate.

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