JP2009210918A - Color filter for in-plane switching liquid crystal driving method, and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a color filter for an in-plane switching liquid crystal driving method using layered columns as spacers, having sufficient durability even to a local load and capable of holding a constant cell gap. <P>SOLUTION: In the color filter having a light shielding part formed on a substrate and provided with an aperture part, a colored layer having pixel part colored parts of a plurality of colors formed on the aperture part and non-pixel part colored parts of the plurality of colors formed on the light shielding part and having the same colors as the pixel part colored parts of the plurality of colors, a plurality of layered columns formed in a display area and formed by layering two or more layers of the non-pixel part colored parts of the respective colors and a transparent protective layer formed so as to cover the colored layer and the layered columns, the layered columns have first and second layered columns having the same number of layered layers of the non-pixel part colored parts, a spacer height of a part where the first layered column is formed is higher than a spacer height of a part where the second layered column is formed and an upper base surface area of the transparent protective layer of a part where the first layered column is formed is smaller than an upper base surface area of the transparent protective layer of a part where the second layered column is formed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a color filter for a lateral electric field liquid crystal driving method having a stacked column in which colored portions of a plurality of colors are stacked as a spacer.

  In general, an operation mode of a liquid crystal display device is a twisted nematic (TN) in which liquid crystal molecules aligned in parallel with a pair of opposed transparent substrates are driven by applying an electric field in a direction perpendicular to the transparent substrate. There are a system, an in-plane switching (IPS) system in which an electric field is applied in a direction parallel to the transparent substrate, and the like. Among such operation modes of the liquid crystal display device, in recent years, the IPS system has been widely used as the operation mode of the liquid crystal display device because of the advantage that the viewing angle is wide when the liquid crystal display is used.

  Generally, a color filter for an IPS system has a light shielding part, a colored layer, a transparent protective layer, and a spacer formed on a substrate. In this color filter for IPS system, a transparent protective layer (also referred to as an overcoat layer) is usually formed on the colored layer in order to flatten the surface of the colored layer and to prevent the elution of contaminants from the colored layer to the liquid crystal layer. .) Is formed.

Conventionally, as a method for forming a spacer, a method in which a large number of spherical or rod-like particles of a certain size made of glass, alumina, plastic, or the like are scattered has been used. However, in the method in which particles are scattered as a spacer, the spacer distribution is uneven. There were various problems such as ease.
As a method for solving the problems of these particulate spacers, a method of forming a photo spacer by photolithography using a photoresist is disclosed.
Further, a method using a stacked column in which colored portions of a plurality of colors are stacked is also disclosed as a spacer (see, for example, Patent Document 1 and Patent Document 2).

Here, the spacer is required to have a property of being easily deformed by a minute load. This is due to the following reason.
For example, when the liquid crystal is placed at a low temperature, all the members constituting the liquid crystal display device try to shrink, and the shrinkage rate of the liquid crystal material is the largest among the constituting members, so that the gap between the substrates shrinks in a narrowing direction. It will be. At this time, if the deformation of the spacer cannot follow the narrowing of the gap, a negative pressure is generated inside the liquid crystal display device, and as a result, vacuum bubbles (low temperature foaming) are easily generated in the liquid crystal display device.
For example, when a liquid crystal display device is used, heat is applied to the liquid crystal display device due to heat generated from the backlight. In this case, all the members constituting the liquid crystal display device try to expand. Even in this case, the expansion coefficient of the liquid crystal material is the largest among the constituting members, so that the gap between the substrates expands. It will be. At this time, similarly to the above, when the deformation of the spacer cannot follow the spread of the gap, pressure is generated inside the liquid crystal cell, and as a result, a gap is formed between the substrate and the liquid crystal layer. This is because the liquid crystal material overflows from the gap, and the overflowed liquid crystal material flows down from the liquid crystal cell due to gravity, resulting in unevenness (gravity unevenness).

In recent years, liquid crystal display devices have increased in screen size, and especially in liquid crystal display devices applied to liquid crystal televisions, the trend toward larger screens has become stronger, and there is a need to maintain a uniform cell gap over the entire area of a wide substrate. It's getting higher.
In recent years, in order to simplify the manufacturing process of liquid crystal display devices and improve productivity, a method of performing cell pressure bonding at room temperature has been proposed. Among them, the one drop fill (ODF) method has become the mainstream. Becoming. The ODF method is a method in which a predetermined amount of liquid crystal is dropped on a liquid crystal panel substrate such as a color filter or a counter substrate, and the other liquid crystal panel substrate is opposed and maintained in a state where a predetermined cell gap can be maintained under vacuum. is there. In the case of such a cell pressure bonding method (particularly the ODF method), a spacer capable of forming a uniform cell gap without causing plastic deformation at the time of cell pressure bonding is required.

  On the other hand, the spacer is also required to have a small displacement after applying a strong force and then removing the force. This is because when a load is locally applied to the liquid crystal cell, for example, in a pressure resistance test such as a finger press test, if the amount of displacement after the force is removed is large, a display defect may occur. Because there is.

  Since the above two characteristics, which are easily deformed with respect to a minute load and the characteristics that are difficult to deform with respect to a local load, are contradictory, it is difficult to form a spacer having the respective characteristics. Therefore, it has been difficult to form a liquid crystal display device that is largely deformed with respect to a minute load and has a small displacement with respect to a strong force.

Therefore, in order to make the two characteristics compatible, it has been proposed to provide two types of photo spacers having different heights.
However, in the production of the color filter for the IPS system, when each of the transparent protective layer and the two types of photo spacers having different heights is formed, the number of processes increases, which causes problems in terms of production efficiency and cost.

  In order to make the two characteristics compatible, it has also been proposed to provide two types of stacked pillars having different heights. For example, Patent Document 2 discloses a method of controlling the height of a photo spacer formed on a stacked column by changing the areas of the colored layers constituting the stacked column. This method uses a reduction in the thickness of a photoresist, and the height of the photo spacer formed on the stacked pillar increases as the area of the colored layer constituting the stacked pillar increases.

Japanese Patent Laid-Open No. 5-196946 JP 2006-23733 A

  According to the method described in Patent Document 2, it is necessary to reduce the area of the underlayer of the photo spacer in order to reduce the height of the photo spacer. Here, when a spacer is formed by laminating a plurality of layers, the area of the upper layer is usually designed to be smaller than the area of the lower layer. Accordingly, in order to reduce the height of the photospacer, it is necessary to reduce the area of the underlayer of the photospacer. Therefore, the area of the photospacer becomes smaller and smaller than the area of the underlayer.

Here, when two types of spacers having different heights are formed, the spacers having a high height are required to have a property of being easily deformed by a minute load, and the spacers having a low height are locally localized. Characteristics that are difficult to deform with respect to the load are required.
When adjusting the height of the spacer by adjusting the area of the base layer as described above, the spacer having a low height has a smaller area than the spacer having a high height, and the top bottom of the spacer. The area is also reduced. For this reason, it is difficult to achieve sufficient load resistance characteristics with the low-height spacer formed by the above method.

  The present invention has been made in view of the above-mentioned problems, uses a stacked column as a spacer, has sufficient resistance against a local load, and further maintains a constant cell gap. The main object is to provide a high-quality color filter for a lateral electric field liquid crystal driving method.

  In order to achieve the above object, the present invention provides a substrate, a light-shielding portion formed in a pattern on the substrate, and having an opening, a plurality of pixel portion coloring portions formed in the opening, and A colored layer formed on the light-shielding part and having a plurality of non-pixel part colored parts of the same color as the pixel part colored part of each color, and a non-pixel part of each color formed on the light-shielding part in the display region A color filter for a lateral electric field liquid crystal driving method, comprising: a plurality of laminated columns in which two or more colored portions are laminated; and a transparent protective layer formed so as to cover the colored layers and the laminated columns. However, the second stacked pillars are formed so that the spacer height of the portion where the first stacked pillars are formed has the first stacked pillars and the second stacked pillars having the same number of stacked non-pixel portion colored portions. Higher than the spacer height of the portion being made, and the first laminated pillar is An upper base area of the transparent protective layer in a portion formed is smaller than an upper base area of the transparent protective layer in a portion where the second laminated pillar is formed. Provide a color filter.

  In the present invention, the upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed is smaller than the upper bottom area of the transparent protective layer in the portion where the second laminated pillar is formed, that is, the second The upper bottom area of the transparent protective layer in the portion where the laminated pillar is formed is wider than the upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed. Therefore, when the horizontal electric field liquid crystal driving type color filter of the present invention is used in a liquid crystal display device, the second laminated pillar may be difficult to deform when a large load is applied to the liquid crystal display device. it can. Therefore, the liquid crystal display device can have sufficient resistance against a local load. On the other hand, when a minute load is applied to the liquid crystal display device, the load is supported only by the first stacked columns, and the first stacked columns can be more easily deformed. As a result, it is possible to prevent, for example, uneven gravity and low-temperature foaming, and to make the cell gap constant.

  In the above invention, the color of the pixel portion colored portion and the non-pixel portion colored portion is k (k is an integer of 2 or more), and the colored layer is adjacent to the predetermined side direction of the opening. The non-pixel portion coloring of the m-th layer (m is an integer of 1 or more and k-1 or less) in which the first layered column constitutes the layered column. N (n is not less than m + 1 and not more than k), which is formed in the first stacked column forming region sandwiched between the openings where the pixel portion coloring portion of the same color as the portion is formed, and the second stacked column constitutes the stacked column It is preferable that it is formed in a second stacked columnar formation region sandwiched between openings in which the pixel portion coloring portion having the same color as the non-pixel portion coloring portion in the layer is formed. By adopting such a configuration, the spacer height of the portion where the first stacked columns are formed is higher than the spacer height of the portion where the second stacked columns are formed, and the first stacked columns are It is possible to make the upper bottom area of the transparent protective layer of the site | part formed smaller than the upper base area of the transparent protective layer of the site | part in which the 2nd lamination pillar is formed.

  Further, in the present invention, the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors, the number of the non-pixel portion coloring portion is three, and the coloring layer is the opening portion. The non-pixel portion of the x (x is 1 or 2) layer in which the color of the colored portion of the pixel portion adjacent in a predetermined side direction is the same color, and the first stacked pillar constitutes the stacked pillar. Y (y is x + 1 or more 3) that is formed in the first stacked column forming region sandwiched between the openings in which the pixel unit colored unit of the same color as the colored unit is formed, and the second stacked column constitutes the stacked column. It is preferable that any one of the following integers) be formed in a second stacked columnar formation region sandwiched between openings in which the pixel portion coloring portion having the same color as the non-pixel portion coloring portion in the layer is formed. As in the above case, by adopting such a configuration, the spacer height of the portion where the first stacked pillar is formed is higher than the spacer height of the portion where the second stacked pillar is formed, And it is possible to make the upper bottom area of the transparent protective layer of the site | part in which the 1st laminated pillar is formed smaller than the upper bottom area of the transparent protective layer of the site in which the 2nd laminated pillar is formed.

  Furthermore, the present invention provides a substrate, a light-shielding portion that is formed in a pattern on the substrate and includes an opening, and a pixel portion coloring portion of k (k is an integer of 2 or more) formed in the opening. And a color of the pixel portion coloring portion that is formed on the light shielding portion and has a non-pixel portion coloring portion of k color of the same color as the pixel portion coloring portion of each color and is adjacent to the predetermined side direction of the opening. Covering the colored layer, the plurality of stacked columns formed by stacking two or more non-pixel portion colored portions of each color, and the colored layer and the stacked columns. A transparent protective layer formed as described above, wherein the stacked column has a first stacked column and a second stacked column with the same number of stacked non-pixel portion colored portions, and the first stacked column is formed. The spacer height of the portion where the second laminated pillar is formed is higher than the spacer height of the portion where the second stacked pillar is formed. A method of manufacturing a color filter for a horizontal electric field liquid crystal driving method for manufacturing a color filter for a horizontal electric field liquid crystal driving method, wherein m (m is 1 or more and k-1 or less) on the substrate on which the light shielding portion is formed. Any one of integers) a colored colored portion photosensitive resin composition is applied to form an m colored colored portion forming layer, and the m colored colored portion forming layer is subjected to pattern exposure and development. Forming a m-th pixel portion coloring portion in an opening adjacent to the side direction of the first layer, and forming a first stacked column forming region sandwiched by the opening where the m-th pixel portion coloring portion is formed, and n (n Is an integer greater than or equal to m + 1 and equal to or less than k) The m-th colored portion that forms the m-th non-pixel portion colored portion in the second stacked pillar forming region sandwiched between the openings where the colored pixel portion colored portions are formed Forming step, the light shielding portion, the m-th color pixel portion coloring portion, and On the substrate on which the m-th non-pixel portion colored portion is formed, an n-th colored portion photosensitive resin composition is applied to form an n-th colored portion forming layer. The colored portion forming layer is subjected to pattern exposure and development to form an n-th color pixel portion colored portion in an opening adjacent to a predetermined side direction, and the first stacked column forming region and the second stacked column forming region. And a n-th colored portion forming step of forming a non-pixel portion colored portion in the nth layer.

  In the present invention, by having the m-th colored portion forming step and the n-th colored portion forming step, the first stacked column is formed with the spacer height of the portion where the second stacked column is formed. It can be made lower than the spacer height of the part. Therefore, since the height is not adjusted by adjusting the area of the colored portion constituting the laminated pillar as in the prior art, the upper bottom area of the transparent protective layer in the portion where the second laminated pillar is formed is It is possible to make it larger than the upper bottom area of the transparent protective layer at the site where one laminated column is formed. Accordingly, when the lateral electric field liquid crystal driving type color filter manufactured according to the present invention is used in a liquid crystal display device, the second laminated column is not easily deformed when a large load is applied to the liquid crystal display device. It is possible to have sufficient resistance against local loads.

  In the above-mentioned invention, it is preferable that the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors, and the number of the non-pixel portion coloring portions is three. The color filter for a horizontal electric field liquid crystal driving system usually has a colored layer in which three colored portions of a red pixel portion colored portion, a green pixel portion colored portion, and a blue pixel portion colored portion are arranged, and has three layers. This is because by stacking the non-pixel portion colored portion, a stacked column having a significant height as a cell gap can be obtained.

  In the present invention, the amount of displacement in a minute load region is large, gravity unevenness, low-temperature foaming, etc. do not occur, it has sufficient resistance against local loads, and the cell gap is made constant. A high-quality color filter for a lateral electric field liquid crystal driving method that can be maintained can be provided.

  Hereinafter, the color filter for a lateral electric field liquid crystal drive system of the present invention and the manufacturing method thereof will be described in detail.

A. First, a color filter for a horizontal electric field liquid crystal drive system according to the present invention will be described.
A color filter for a lateral electric field liquid crystal driving method according to the present invention includes a substrate, a light shielding portion formed in a pattern on the substrate and provided with an opening, a plurality of color pixel portion coloring portions formed in the opening, and A colored layer formed on the light-shielding portion and having a plurality of non-pixel-colored portions of the same color as the pixel-colored portions of the respective colors, and a non-pixel of each color formed on the light-shielding portion in the display area. A color filter for a lateral electric field liquid crystal driving method, comprising: a plurality of laminated columns in which two or more colored portions are laminated; and a transparent protective layer formed so as to cover the colored layers and the laminated columns. The column has a first stacked column and a second stacked column with the same number of stacked non-pixel portion colored portions, and the transparent protective layer is formed from the surface of the light shielding unit at the portion where the first stacked column is formed. The height to the top is such that the second laminated pillar is formed The upper layer area of the transparent protective layer of the part where the first laminated pillar is formed is higher than the height of the part from the surface of the light shielding part to the top of the transparent protective layer, and the second laminated pillar is formed. It is characterized by being smaller than the area of the upper base of the transparent protective layer in the portion that is formed.

The color filter for a horizontal electric field liquid crystal drive system of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic plan view of a color filter for a lateral electric field liquid crystal driving system according to the present invention. 2 is a sectional view taken along line AA in FIG. 1, FIG. 3 is a sectional view taken along line BB in FIG. 1, and FIG. 4 is a sectional view taken along line CC in FIG. In FIG. 1, the transparent protective layer is omitted.

  As illustrated in FIGS. 1 to 4, the color filter 1 for a horizontal electric field liquid crystal driving method includes a substrate 2 and a light shielding portion that is formed on the substrate 2 and includes a rectangular opening 11 having a short side and a long side. 3 and non-pixels of three colors of red, green and blue formed on the pixel portion coloring portion (4R, 4G, 4B) of red, green and blue formed in the opening 11 and the light shielding portion 3 A colored layer having a colored portion (5R, 5G, 5B) and the color of the colored portion (4R, 4G, 4B) adjacent to the opening 11 in the long side direction p is the same color; A stacked column having a first stacked column 6 and a second stacked column 7 in which non-pixel portion colored portions (5R, 5G, 5B) of three colors of red, green, and blue are stacked, a colored layer, and a stacked layer And a transparent protective layer 8 formed so as to cover the column.

  The first stacked column 6 and the second stacked column 7 are formed by stacking three non-pixel colored portions (5R, 5G, 5B), and the number of non-pixel colored portions is equal.

  The height d1 of the first stacked pillar 6 is higher than the height d2 of the second stacked pillar 7. Further, the spacer height h1 at the portion where the first stacked pillar 6 is formed is higher than the spacer height h2 at the portion where the second stacked pillar 7 is formed.

  Further, the thickness x1 of the first red non-pixel portion coloring portion 5R constituting the first stacked pillar 6 and the thickness y1 of the first red non-pixel portion coloring portion 5R constituting the second stacked pillar 7 are as follows. Are equal. On the other hand, the thickness x2 of the second blue non-pixel portion colored portion 5B constituting the first stacked pillar 6 and the thickness y2 of the second blue non-pixel portion colored portion 5B constituting the second stacked pillar 7 are as follows. The thickness y2 of the second blue non-pixel portion colored portion 5B constituting the second stacked pillar 7 is different from the thickness x2 of the second blue non-pixel portion colored portion 5B constituting the first stacked pillar 6. Than it is thinner. The thickness x3 of the third green non-pixel portion coloring portion 5G constituting the first stacked pillar 6 and the thickness y3 of the third green non-pixel portion coloring portion 5G constituting the second stacked pillar 7 are as follows. Are equal.

  Furthermore, the upper bottom area S1 of the transparent protective layer 8 where the first stacked pillars 6 are formed is smaller than the upper bottom area S2 of the transparent protective layer 8 where the second stacked pillars 7 are formed. It has become.

  The first stacked pillar 6 is sandwiched between the openings 11 where the red pixel portion colored portions 4R of the same color as the first red non-pixel portion colored portions 5R constituting the first stacked columns 6 and the second stacked columns 7 are formed. The first laminated column forming region 12 is formed. The second stacked pillar 7 has an opening 11 in which a blue pixel portion colored portion 4B having the same color as the blue non-pixel portion colored portion 5B of the second layer constituting the first stacked column 6 and the second stacked column 7 is formed. It is formed in the second laminated column forming region 13 sandwiched between the two.

  The first non-pixel portion colored portion 5R of the first layer constituting the first stacked column 6 is formed continuously with the red pixel portion colored portion 4R of the same color in the first stacked column forming region 12, and the second stacked column. 7 is formed continuously in the second stacked column forming region 13 with the blue pixel portion coloring portion 4B of the same color.

  In the liquid crystal display device using the color filter for the lateral electric field liquid crystal drive system of the present invention as illustrated in FIGS. 1 to 4, when a large load is applied, the load is the first stacked column 6 and the second stacked column. 7 will be supported. Therefore, the load applied to the liquid crystal display device is dispersed, and the resistance against the load becomes large. In the present invention, the upper bottom area S1 of the transparent protective layer in the portion where the first laminated pillar is formed is smaller than the upper bottom area S2 of the transparent protective layer in the portion where the second laminated pillar is formed. That is, the upper bottom area S2 of the transparent protective layer in the portion where the second stacked pillar is formed is larger than the upper bottom area S1 of the transparent protective layer in the portion where the first stacked pillar is formed. Thereby, the 2nd lamination pillar 7 can be made difficult to change, and resistance to the above-mentioned load can be enlarged. Accordingly, it is difficult for the liquid crystal display device to be displaced below the spacer height h2 at the portion where the second stacked pillars 7 are formed, and further displacement of the liquid crystal display device can be reduced.

  On the other hand, in the liquid crystal display device, when a minute load is applied, only the first laminated column 6 is loaded, and the resistance against the load is small. In the present invention, the upper bottom area S1 of the transparent protective layer where the first laminated pillar is formed is smaller than the upper bottom area S2 of the transparent protective layer where the second laminated pillar is formed. Therefore, the drag force against the load can be reduced. Therefore, when a minute load is applied, the first stacked pillar 6 is easily deformed, and the displacement amount of the liquid crystal display device can be increased.

  Therefore, by using the color filter for the lateral electric field liquid crystal driving system of the present invention, it is possible to eliminate low-temperature foaming and gravity unevenness, and even when a local load is applied, the deformation It is possible to obtain a high-quality liquid crystal display device that does not have the above.

  In the case of manufacturing a liquid crystal display device by the cell pressure bonding method, particularly the ODF method, using the color filter for the lateral electric field liquid crystal driving method of the present invention, by relaxing or absorbing the pressure unevenness during the cell pressure bonding. It is possible to make the load uniform over the entire substrate and prevent the occurrence of gap unevenness. In addition, the cell gap can be maintained even after release after the compressive load.

  Furthermore, even when the liquid crystal display device has a large area, the cell gap can be kept uniform. Therefore, the color filter for a horizontal electric field liquid crystal drive system of the present invention can be suitably used for a liquid crystal television.

  In addition, since the stacked columns are formed on the light shielding portion, it is possible to prevent display quality from being deteriorated by the stacked columns. Accordingly, when the color filter for a lateral electric field liquid crystal driving system of the present invention is used in a liquid crystal display device, the luminance of the colored layer is hardly reduced.

  Since the laminated pillar in the present invention is formed by laminating two or more non-pixel portion colored portions, the laminated pillar can be formed simultaneously with the formation of the pixel portion colored portion. Therefore, it is not necessary to separately perform a layered column forming step in order to form a layered column, and two types of spacers having different heights can be formed by a simple process. Therefore, cost reduction of the color filter for the horizontal electric field liquid crystal driving method can be achieved.

  In the present invention, the spacer height of the portion where the first stacked column is formed is higher than the spacer height of the portion where the second stacked column is formed, and the transparent portion of the portion where the first stacked column is formed The upper base area of the protective layer is smaller than the upper base area of the transparent protective layer at the portion where the second stacked pillar is formed. Here, the spacer height of the portion where the first stacked column is formed is higher than the spacer height of the portion where the second stacked column is formed, and the transparent protection of the portion where the first stacked column is formed The reason why the top bottom area of the layer can be made smaller than the top bottom area of the transparent protective layer at the portion where the second laminated pillar is formed is as follows. The description will be given with reference.

FIG. 5 is a process diagram showing an example of a method for producing a color filter for a lateral electric field liquid crystal drive system according to the present invention. 6A is a cross-sectional view taken along the line DD in FIG. 5C, and FIG. 6B is a cross-sectional view taken along the line EE in FIG. 5C.
First, a color filter forming substrate having a substrate 2 and a light shielding portion 3 formed on the substrate 2 and provided with an opening 11 is prepared (FIG. 5A). Next, the red pixel portion coloring portion 4R and the red non-pixel portion coloring portion 5R are formed (FIG. 5B). At this time, the red non-pixel colored portion 5R of the first layer constituting the first stacked pillar and the second stacked pillar formed on the light shielding portion 3 is also collectively formed. Next, a blue pixel portion coloring portion 4B and a blue non-pixel portion coloring portion 5B are formed (FIG. 5C). At this time, the blue non-pixel portion coloring portion 5B of the second layer constituting the first stacked pillar and the second stacked pillar formed on the light shielding portion 3 is also formed collectively. Next, a green pixel portion coloring portion 4G and a green non-pixel portion coloring portion 5G are formed (FIG. 5D). At this time, the third green non-pixel portion coloring portion 5G constituting the first stacked pillar and the second stacked pillar formed on the light shielding portion 3 is also formed collectively. Thus, the 1st lamination pillar 6 and the 2nd lamination pillar 7 in which the non-pixel part coloring part of three colors was laminated are formed. Then, although not shown in figure, a transparent protective layer is formed so that a colored layer and a lamination pillar may be covered.

  As a method for forming the colored portion and the non-pixel colored portion of each color, a method of applying a photosensitive resin composition for the colored portion of each color, and exposing and developing is used. In the method for producing a color filter for a lateral electric field liquid crystal driving system illustrated in FIG. 5, when forming the second color blue colored portion, specifically, first, a blue colored portion photosensitive resin composition is applied and then blue colored. The part forming layer 20B is formed (FIGS. 6A and 6B). Here, although not shown, the substrate 2 on which the light shielding portion 3, the red pixel portion coloring portion 4R, and the red non-pixel portion coloring portion 5R are formed immediately after the application of the photosensitive resin composition for the blue coloring portion of the second color. On top, the blue colored portion forming layer 20B is formed with a relatively uniform thickness. Thereafter, the blue colored portion forming layer 20B on the first red non-pixel portion colored portion 5R is gradually leveled down to a lower position (FIGS. 6A and 6B). Therefore, exposure and development are performed, and the thickness of the blue non-pixel portion colored portion 5B of the second layer that is finally formed is thin.

  When the above leveling occurs, as shown in FIG. 6A, in the first stacked columnar region 12 sandwiched between the openings 11 where the red pixel portion coloring portions 4R are formed, the first red non-pixel portion is colored. The blue colored portion forming layer 20B on the portion 5R flows down to the surface of the red pixel portion colored portion 4R. On the other hand, as shown in FIG. 6B, in the second stacked columnar region 13 sandwiched by the opening 11 where the blue pixel portion coloring portion 4B is formed, the blue color on the first red non-pixel portion coloring portion 5R is formed. The colored portion forming layer 20 </ b> B flows down to the surface of the substrate 2. When flowing from the surface of the red non-pixel colored portion 5R to the surface of the substrate 2 (FIG. 6 (b)), it flows from the surface of the red non-pixel colored portion 5R to the surface of the red pixel colored portion 4R ( Compared to FIG. 6 (a)), the drop when the blue colored portion forming layer 20B flows down is large. Therefore, in the second stacked columnar region 13, the thickness of the blue colored portion forming layer 20B on the first red non-pixel portion colored portion 5R is further reduced (FIG. 6B). Therefore, in the second stacked pillar region 13, the thickness of the blue non-pixel portion colored portion 5 </ b> B of the second layer that is finally formed is further reduced.

  For this reason, as illustrated in FIG. 4, the thickness y <b> 2 of the second blue non-pixel portion coloring portion 5 </ b> B constituting the second stacked pillar 7 is set to the second layer constituting the first stacked pillar 6. It can be made thinner than the thickness x2 of the blue non-pixel colored portion 5B. As a result, the spacer height h2 at the portion where the second stacked pillars 7 are formed can be made lower than the spacer height h1 at the portion where the first stacked pillars 6 are formed.

  Further, in the present invention, the spacer height can be adjusted as described above, and the spacer height is adjusted by adjusting the area of the non-pixel portion coloring portion constituting the stacked pillar as in the conventional case. Since it is not a thing, the area of a 1st laminated pillar and a 2nd laminated pillar is not restrict | limited by adjustment of spacer height. Therefore, it is possible to make the upper bottom area of the transparent protective layer in the part where the second laminated pillar is formed larger than the upper bottom area of the transparent protective layer in the part where the first laminated pillar is formed.

  Therefore, in the present invention, the spacer height of the portion where the first stacked column is formed is higher than the spacer height of the portion where the second stacked column is formed, and the first stacked column is formed. The upper bottom area of the transparent protective layer at the site can be made smaller than the upper bottom area of the transparent protective layer at the site where the second stacked pillars are formed.

  The “pixel portion coloring portion” is formed in the opening portion of the light shielding portion on the substrate and refers to a portion of the coloring portion arranged in the opening portion of the light shielding portion on the substrate. Further, the “non-pixel portion coloring portion” is a portion of the coloring portion that is formed on the light shielding portion and is disposed on the light shielding portion. The colors of the plurality of pixel portion coloring portions and the plurality of non-pixel portion coloring portions are the same color.

  The “display area” refers to the pixel portion coloring portions (4R, 4G, 4B) and the light shielding portions formed between these pixel portion coloring portions (4R, 4G, 4B) as illustrated in FIGS. An area defined by (inter-pixel light shielding portion) 3. “In the display area” means the inside of the display area. The area provided with the light-shielding part (frame light-shielding part) formed so as to surround the outer periphery of the pixel part coloring part (4R, 4G, 4B) is not a display area but a display area. To do. In the present invention, the stacked pillar is formed on the light shielding portion in the display area, that is, on the inter-pixel light shielding portion.

  “The upper bottom area of the transparent protective layer at the portion where the stacked pillars are formed” refers to a cross-sectional area at a position 0.1 μm below in the vertical direction from the top of the transparent protective layer formed on the stacked pillars. Further, the “cross-sectional area” refers to an area when the transparent protective layer is viewed from right above the substrate. Here, with a color 3D laser microscope VK-8500 manufactured by Keyence Corporation, the dimension at a position 0.1 μm below the top of the transparent protective layer formed on the laminated column was measured, and the cross-sectional area was calculated. The cross-sectional area was defined as the upper base area.

Further, “the height of the first stacked column or the second stacked column” refers to the longest distance among the distances from the surface of the light shielding portion to the top of the first stacked column or the second stacked column in the vertical direction. For example, in FIGS. 2 and 3, the height of the first stacked pillar 6 is d1, and the height of the second stacked pillar 7 is d2.
“The spacer height of the portion where the first stacked pillar or the second stacked pillar is formed” refers to the first stacked pillar or the second vertically extending from the surface of the transparent protective layer formed on the colored portion of the pixel portion. The longest distance among the distances to the top of the transparent protective layer formed on the stacked pillars. For example, in FIGS. 2 and 3, the spacer height at the portion where the first stacked pillar 6 is formed is h1, and the spacer height at the portion where the second stacked pillar 6 is formed is h2.

  Hereinafter, each structure of the color filter for a horizontal electric field liquid crystal drive system of the present invention will be described.

1. Stacked Column A plurality of stacked columns in the present invention are formed on the light shielding portion in the display region, and two or more non-pixel colored portions of each color are stacked. In addition, the stacked column is composed of two types of stacked columns of a first stacked column and a second stacked column in which the number of stacked non-pixel colored portions is the same. The spacer height of the part where the first stacked pillar is formed is higher than the spacer height of the part where the second stacked pillar is formed. Furthermore, the upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed is smaller than the upper bottom area of the transparent protective layer in the portion where the second laminated pillar is formed.

  The difference between the spacer height at the portion where the first stacked pillar is formed and the spacer height at the portion where the second stacked pillar is formed is preferably 0.2 μm or more, more preferably 0.3 μm. It is about -1.0 micrometer. This is because if the difference in spacer height is within the above range, the cell gap can be effectively made uniform.

  The spacer height of the portion where the first stacked pillars and the second stacked pillars are formed is not particularly limited as long as a desired cell gap can be formed. It is preferably in the range of 5.0 μm, more preferably in the range of 2.5 μm to 4.5 μm, and particularly preferably in the range of 3.0 μm to 4.0 μm. This is because if the protruding height is lower than the above range, it is difficult to control the cell gap, and if the protruding height is higher than the above range, it is difficult to form a stacked column.

  The height of the first stacked pillar and the second stacked pillar varies depending on the thickness of the non-pixel portion colored portion of each color and the number of stacked layers, but is set to about 3.5 μm to 6.0 μm, preferably It is in the range of 3.5 μm to 5.5 μm, more preferably in the range of 4.0 μm to 5.0 μm.

In addition, the difference between the upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed and the upper bottom area of the transparent protective layer in the portion where the second laminated pillar is formed is 300 μm ² or more. preferably there, more preferably in the range of 500μm ² ~3000μm ^2, more preferably in the range of 1000μm ² ~2000μm ^2. This is because, if the difference in the upper base area of the transparent protective layer is within the above range, the second laminated column can have sufficient load-bearing characteristics.

The upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed is smaller than the upper bottom area of the transparent protective layer in the portion where the second laminated pillar is formed, and is above the light shielding portion in the display area. long can be formed, although those vary depending on the non-pixel portion colored portion area and the like of constituting the first stacked pillar, specifically, it is preferably in the range of 100μm ² ~1500μm ² , preferably in the range of these of 150μm ² ~1000μm ^2, particularly preferably in the range of 200μm ² ~700μm ^2. If the upper base area of the transparent protective layer is smaller than the above range, it is difficult to form the first laminated pillar, and if the upper base area of the transparent protective layer is larger than the above range, deformation in a desired low load region This is because it becomes difficult to obtain the characteristics, and it is difficult to set the difference between the upper base area of the transparent protective layer at the portion where the second laminated pillar is formed within a predetermined range.

Further, the upper bottom area of the transparent protective layer in the portion where the second stacked pillar is formed is larger than the upper bottom area of the transparent protective layer in the portion where the first stacked pillar is formed, and the light shielding within the display region is performed. long can be formed on a part that, although those vary depending on the non-pixel portion colored portion area and the like of constituting the second stacked pillar, specifically, in the range of 500 [mu] m ² ～5000Myuemu ² it is preferred, preferably in the range of 750μm ² ~4000μm ^2, particularly preferably in the range of 1000μm ² ~3000μm ^2. If the upper base area of the transparent protective layer is smaller than the above range, the desired load-bearing characteristics may not be obtained, and those having an upper base area of the transparent protective layer larger than the above range are difficult to form. Because it becomes.

  Further, as the order of the size of the area in the first stacked column forming region of each non-pixel portion coloring portion constituting the first stacked column, it is only necessary that the first stacked column can have a desired height and a desired strength. . For example, the area of the lower layer in the non-pixel portion coloring portion constituting the first stacked pillar may be equal to the area of the upper layer, may be larger than the area of the upper layer, or may be smaller than the area of the upper layer. In the example shown in FIGS. 1 to 4, the size of the area in the first stacked column forming region 12 is such that the first red non-pixel portion colored portion 5R> the second blue non-pixel portion colored portion 5B> 3. It is in the order of the green non-pixel portion coloring portion 5G of the layer.

  Similarly, as the order of the size of the area in the second stacked column forming region of each non-pixel portion coloring portion constituting the second stacked column, if the second stacked column can be set to a desired height and a desired strength. Good. For example, the area of the lower layer in the non-pixel portion coloring portion constituting the second stacked pillar may be equal to the area of the upper layer, may be larger than the area of the upper layer, or may be smaller than the area of the upper layer. In the example shown in FIGS. 1 to 4, the size of the area in the second stacked column forming region 13 is the second blue non-pixel portion colored portion 5B> the first red non-pixel portion colored portion 5R> 3. It is in the order of the green non-pixel portion coloring portion 5G of the layer.

  Note that “the area of the non-pixel portion colored portion constituting the stacked pillar” refers to the area when each non-pixel portion colored portion constituting the stacked column is viewed from right above the substrate.

  The formation positions of the first and second stacked columns may be on the light shielding portion in the display area. In particular, the color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more), and the coloring layer has the same color of the pixel portion coloring portion adjacent in the predetermined side direction of the opening. When the first stacked column is formed, the first stacked column is a non-pixel portion in the m-th layer (m is an integer from 1 to k−1) that forms the stacked column. It is preferably formed in the first stacked pillar forming region sandwiched between the openings where the pixel portion coloring portion having the same color as the coloring portion is formed. Further, in the above case, as the formation position of the second stacked pillar, the second stacked pillar is a non-pixel portion colored portion of the n-th layer (n is any integer from m + 1 to k) constituting the stacked pillar. It is preferably formed in the second stacked pillar forming region sandwiched between the openings where the pixel portion coloring portions of the same color are formed.

  That is, the first stacked pillar is formed in a region sandwiched between openings in which a pixel portion colored portion having the same color as the m-th non-pixel colored portion of the non-pixel colored portion constituting the stacked pillar is formed. And an opening in which the second stacked pillar is formed with a pixel portion colored portion having the same color as the non-pixel portion colored portion in the n-th layer after the (m + 1) th layer among the non-pixel portion colored portions constituting the stacked pillar. It is preferably formed in a region sandwiched between. Thereby, at the time of forming the non-pixel portion colored portion of the nth layer after the (m + 1) th layer, in the region sandwiched by the opening where the pixel portion colored portion of the same color as the non-pixel portion colored portion of the mth layer is formed, Since the pixel portion coloring portion having the same color as the m-th non-pixel portion coloring portion has already been formed in the openings on both sides, the coloring used for forming the n-th non-pixel portion coloring portion after the (m + 1) th layer The leveling of the photosensitive resin composition for parts can be suppressed. On the other hand, in the region sandwiched between the openings where the pixel portion coloring portions of the same color as the non-pixel portion coloring portions of the nth layer after the m + 1th layer are formed, the nth layer after the m + 1th layer is still in the openings on both sides. Since the pixel-colored portion of the same color as the non-pixel-colored portion is not formed, the leveling of the photosensitive resin composition for the colored portion used for forming the non-pixel-colored portion of the n-th layer after the (m + 1) th layer Can be promoted. As a result, the non-pixel portion colored portion of the nth layer after the (m + 1) th layer in the region sandwiched by the openings where the pixel portion colored portion of the same color as the non-pixel portion colored portion of the nth layer after the (m + 1) th layer is formed. Than the thickness of the non-pixel portion colored portion of the nth layer after the (m + 1) th layer in the region sandwiched by the openings where the pixel portion colored portion of the same color as the non-pixel portion colored portion of the mth layer is formed. Can be thin. Therefore, the spacer height is lower than the spacer height of the portion where the first laminated pillar is formed, and the upper bottom area is larger than the upper bottom area of the transparent protective layer of the portion where the first laminated pillar is formed. The second laminated pillar can be formed.

Note that the “first laminated column forming region” means m (m is 1) constituting the laminated column when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more). Any of the above integers of k-1 or less) refers to a region sandwiched between openings in which a pixel portion coloring portion having the same color as the non-pixel portion coloring portion of the layer is formed. Usually, the first stacked column forming region is a region sandwiched only by the sides of the opening. For example, in FIG. 1, the first stacked column forming region 12 is a region sandwiched only by the short sides of the opening 11 and is a region where the first stacked column 6 is formed.
“The first stacked column is formed in the first stacked column forming region” means that the non-pixel portion coloring portions constituting the first stacked column overlap in the first stacked column forming region in plan view. It means to be formed.

Further, the “second stacked column forming region” means n (n is m + 1) constituting the stacked column when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more). Any one of integers equal to or less than k) refers to a region sandwiched between openings in which a pixel portion coloring portion having the same color as the non-pixel portion coloring portion of the layer is formed. Usually, the second stacked pillar forming region is a region sandwiched only by the sides of the opening. For example, in FIG. 1, the second stacked pillar forming region 13 is a region sandwiched only by the short sides of the opening 11 and is a region where the second stacked pillar 7 is formed.
“The second stacked column is formed in the second stacked column forming region” means that the non-pixel portion coloring portions constituting the second stacked column overlap in the second stacked column forming region in plan view. It means to be formed.

  In the present invention, as described above, the opening in which the first stacked pillar is formed with a pixel portion coloring portion having the same color as the m-th non-pixel portion coloring portion of the non-pixel portion coloring portions constituting the stacked pillar. The non-pixel portion colored portion of the nth layer after the (m + 1) -th layer among the non-pixel portion colored portions constituting the laminated column, and formed in the first laminated column forming region sandwiched between the portions. The color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k Is an integer of 2 or more), m is k−1 or less and n is m + 1 or more. That is, m is any integer from 1 to k-1, and n is any integer from m + 1 to k.

  In the case where the color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more), the number of non-pixel portion coloring portions constituting the stacking column may be two or more, k It doesn't have to be a layer. For example, when the colors of the pixel portion coloring portion and the non-pixel portion coloring portion are five colors (k = 5), the number of the non-pixel portion coloring portions constituting the stacked pillar may be two or more, and five layers. There is no need, and any of two layers, three layers, four layers and five layers may be used.

  In addition, when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of laminations of the non-pixel portion coloring portion is three layers, , Formed in a first stacked column forming region sandwiched between openings in which pixel portion colored portions of the same color as the non-pixel portion colored portions of the x (x is 1 or 2) layer constituting the stacked columns are formed. It is preferable. Further, in the above case, the second stacked pillar forms a pixel part colored part having the same color as the non-pixel part colored part of the y-th layer (y is an integer from x + 1 to 3) constituting the laminated pillar. It is preferably formed in the second stacked pillar forming region sandwiched between the openings.

  That is, when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of non-pixel portion coloring portions is three, as illustrated in FIGS. Reference numeral 6 denotes a region (first region) sandwiched between openings 11 where pixel portion coloring portions (red pixel portion coloring portions 4R) of the same color as the first layer non-pixel portion coloring portions (red non-pixel portion coloring portions 5R) are formed. The pixel portion coloring portion (blue pixel portion coloring portion 4B) formed in the layered column forming region 12) and having the same color as that of the second layer non-pixel portion coloring portion (blue nonpixel portion coloring portion 5B). ) Is preferably formed in a region (second stacked column forming region 13) sandwiched between the openings 11 where it is formed. Thereby, when forming the non-pixel portion coloring portion of the second layer, since the pixel portion coloring portions are already formed in the openings on both sides in the first stacked column forming region, the non-pixel portion coloring of the second layer is formed. The leveling of the photosensitive resin composition for colored portion used for forming the portion is suppressed, and in the second laminated column forming region, the pixel portion colored portion is not yet formed in the openings on both sides. Leveling of the photosensitive resin composition for colored portion used for forming the non-pixel portion colored portion can be promoted. As a result, as illustrated in FIG. 4, the thickness (y2) of the second non-pixel portion coloring portion in the second stacked columnar region is set to the thickness of the second non-pixel portion coloring portion in the first stacked column forming region. It can be made thinner than the thickness (x2). Therefore, the spacer height is lower than the spacer height of the portion where the first laminated pillar is formed, and the upper bottom area is larger than the upper bottom area of the transparent protective layer of the portion where the first laminated pillar is formed. The second laminated pillar can be formed.

Further, when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of non-pixel portion coloring portions is three, as illustrated in FIGS. 2 and 7 to 9, A region in which one stacked column 6 is sandwiched between openings 11 where a pixel portion coloring portion (red pixel portion coloring portion 4R) of the same color as the first layer non-pixel portion coloring portion (red non-pixel portion coloring portion 5R) is formed A pixel portion coloring portion (green pixel portion) formed in the (first stacked column forming region 12) and having the same color as the non-pixel portion coloring portion (green non-pixel portion coloring portion 5G) of the third layer. It is also preferable that it is formed in a region (second laminated column forming region 13) sandwiched between the openings 11 where the colored portions 4G) are formed. As a result, when the non-pixel portion coloring portion of the third layer is formed, since the pixel portion coloring portions are already formed in the openings on both sides in the first stacked column forming region, the non-pixel portion coloring of the third layer is formed. The leveling of the photosensitive resin composition for colored portion used for forming the colored portion is suppressed, and in the second laminated column forming region, the pixel colored portion is not yet formed in the opening on both sides. Leveling of the photosensitive resin composition for colored portion used for forming the non-pixel portion colored portion can be promoted. As a result, as illustrated in FIG. 9, the thickness (y3) of the non-pixel portion coloring portion of the third layer in the second stacked pillar region is set to the thickness (y3) of the non-pixel portion coloring portion of the third layer in the first stacked column forming region. It can be made thinner than the thickness (x3). Further, even when the non-pixel portion coloring portion of the second layer is formed, since the pixel portion coloring portions are already formed in the openings on both sides in the first stacked column forming region, the non-pixel portion coloring of the second layer is formed. The leveling of the photosensitive resin composition for colored portion used for forming the portion is suppressed, and in the second laminated column forming region, the pixel portion colored portion is not yet formed in the openings on both sides. Leveling of the photosensitive resin composition for colored portion used for forming the non-pixel portion colored portion can be promoted. As a result, as illustrated in FIG. 9, the thickness (y2) of the second non-pixel portion coloring portion in the second stacked pillar region is set to the thickness of the second non-pixel portion coloring portion in the first stacked pillar formation region. It can be made thinner than the thickness (x2). Therefore, the spacer height is lower than the spacer height of the portion where the first laminated pillar is formed, and the upper bottom area is larger than the upper bottom area of the transparent protective layer of the portion where the first laminated pillar is formed. The second laminated pillar can be formed.
2 is a sectional view taken along line FF in FIG. 7, FIG. 8 is a sectional view taken along line GG in FIG. 7, and FIG. 9 is a sectional view taken along line HH in FIG. In FIG. 7, the transparent protective layer is omitted.

Further, when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of non-pixel portion coloring portions is three, as illustrated in FIGS. 8 and 10 to 12, A region in which one stacked column 6 is sandwiched between openings 11 in which a pixel portion coloring portion (blue pixel portion coloring portion 4B) of the same color as the second non-pixel portion coloring portion (blue non-pixel portion coloring portion 5B) is formed A pixel portion coloring portion (green pixel portion) formed in the (first stacked column forming region 12) and having the same color as the non-pixel portion coloring portion (green non-pixel portion coloring portion 5G) of the third layer. It is also preferable that it is formed in a region (second laminated column forming region 13) sandwiched between the openings 11 where the colored portions 4G) are formed. As a result, when the non-pixel portion coloring portion of the third layer is formed, since the pixel portion coloring portions are already formed in the openings on both sides in the first stacked column forming region, the non-pixel portion coloring of the third layer is formed. The leveling of the photosensitive resin composition for colored portion used for forming the colored portion is suppressed, and in the second laminated column forming region, the pixel colored portion is not yet formed in the opening on both sides. Leveling of the photosensitive resin composition for colored portion used for forming the non-pixel portion colored portion can be promoted. As a result, as illustrated in FIG. 12, the thickness (y3) of the non-pixel portion coloring portion of the third layer in the second stacked pillar region is set to the thickness (y3) of the non-pixel portion coloring portion of the third layer in the first stacked column forming region. It can be made thinner than the thickness (x3). Therefore, the spacer height is lower than the spacer height of the portion where the first laminated pillar is formed, and the upper bottom area is larger than the upper bottom area of the transparent protective layer of the portion where the first laminated pillar is formed. The second laminated pillar can be formed.
11 is a sectional view taken along line II in FIG. 10, FIG. 8 is a sectional view taken along line JJ in FIG. 10, and FIG. 12 is a sectional view taken along line KK in FIG. In FIG. 10, the transparent protective layer is omitted.

  When the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of laminations of the non-pixel portion coloring portion is three layers, the spacer height of the portion where the first lamination pillar is formed and the second lamination Since the difference from the spacer height of the part where the pillar is formed can be easily increased, among the above, the first stacked pillar 6 is the first layer as illustrated in FIGS. 1 and 7 to 9. The region (first stacked column forming region 12) sandwiched between the openings 11 where the pixel portion coloring portion (red pixel portion coloring portion 4R) of the same color as the non-pixel portion coloring portion (red non-pixel portion coloring portion 5R) is formed. ) And the second stacked pillar 7 is formed with a pixel portion coloring portion (green pixel portion coloring portion 4G) of the same color as the non-pixel portion coloring portion (green non-pixel portion coloring portion 5G) of the third layer. It is preferably formed in a region (second stacked column forming region 13) sandwiched between the openings 11.

  Note that “the color of the pixel portion coloring portion adjacent in the predetermined side direction of the opening portion is the same color” means that, for example, when the light shielding portion includes a rectangular opening portion having a short side and a long side, the opening portion That is, the same colored pixel portion colored portions are arranged adjacent to each other in the long side direction, and the different colored pixel portion colored portions are arranged adjacent to each other in the short side direction of the opening. For example, in FIG. 1, in the long side direction p of the opening, each pixel portion is arranged such that the red pixel portion coloring portion 4R is adjacent, the green pixel portion coloring portion 4G is adjacent, and the blue pixel portion coloring portion 4B is adjacent. Colored parts are arranged. Further, the blue pixel portion coloring portion 4B and the red pixel portion coloring portion 4R are adjacent to each other in the short side direction q of the opening, and the red pixel portion coloring portion 4R and the green pixel portion coloring portion 4G are adjacent to each other. Each pixel portion coloring portion is repeatedly arranged in the order of blue, red, and green so that the portion coloring portion 4G and the blue pixel portion coloring portion 4B are adjacent to each other.

The non-pixel portion coloring portions constituting the first and second stacked pillars may be formed continuously or non-continuously with the pixel portion coloring portions having the same color as the non-pixel portion coloring portions. May be.
For example, in FIGS. 1 to 4, the red non-pixel colored portion 5 </ b> R in the first layer is continuously formed with the red pixel colored portion 4 </ b> R of the same color in the first stacked column forming region 12. The pixel portion coloring portion 5B is formed continuously with the blue pixel portion coloring portion 4B of the same color in the second stacked column forming region 13. Further, in FIGS. 1 and 7 to 9, the red non-pixel portion coloring portion 5 </ b> R of the first layer is formed continuously with the red pixel portion coloring portion 4 </ b> R of the same color in the first stacked column forming region 12. The green non-pixel colored portion 5G of the eye is formed continuously with the green pixel colored portion 4G of the same color in the second stacked column forming region 13. Further, in FIGS. 8 and 10 to 12, the blue non-pixel portion coloring portion 5 </ b> B of the second layer is continuously formed with the blue pixel portion coloring portion 4 </ b> B of the same color in the first stacked column forming region 12. The green non-pixel colored portion 5G of the eye is formed continuously with the green pixel colored portion 4G of the same color in the second stacked column forming region 13.
On the other hand, in FIGS. 13 to 16, the red non-pixel portion coloring portion 5 </ b> R in the first layer is formed discontinuously with the red pixel portion coloring portion 4 </ b> R of the same color, and the blue non-pixel portion coloring portion 5 </ b> B in the second layer is formed. The same color blue pixel portion coloring portion 4B is discontinuously formed, and the third green non-pixel portion coloring portion 5G is discontinuously formed with the same color green pixel portion coloring portion 4G.
14 is a sectional view taken along line LL in FIG. 13, FIG. 15 is a sectional view taken along line MM in FIG. 13, and FIG. 16 is a sectional view taken along line NN in FIG. In FIG. 13, the transparent protective layer is omitted.

  When the non-pixel portion coloring portion is formed continuously with the same color pixel portion coloring portion, there is an advantage that patterning is easy.

"The non-pixel part coloring part is formed continuously with the pixel part coloring part of the same color as this non-pixel part coloring part" means that the non-pixel part coloring part is continuous with the pixel part coloring part of the same color. It is said that it is integrally formed.
In addition, “the non-pixel portion coloring portion is formed discontinuously with the pixel portion coloring portion having the same color as the non-pixel portion coloring portion” means that the non-pixel portion coloring portion is the same color as the pixel portion coloring portion. It means that it is not in contact but formed separately.

  The non-pixel part coloring part which comprises a lamination | stacking pillar comprises the coloring layer mentioned later. Here, a colored layer is formed by apply | coating each photosensitive resin composition for colored parts, and exposing and developing. For this reason, when the number of laminations of the non-pixel portion colored portions constituting the laminated pillar is 3 and each colored portion is formed in the order of red, blue, and green, that is, it is applied first. The first colored portion photosensitive resin composition is red, the second colored portion photosensitive resin composition to be applied next is blue, and the third colored portion is applied last. When the photosensitive resin composition for green is green, the non-pixel portion coloring portion of the first layer is red, the non-pixel portion coloring portion of the second layer is blue, and the non-pixel portion coloring portion of the third layer is green. Become. Accordingly, the colors of the non-pixel portion coloring portions constituting the stacked pillar are different from each other, and are determined according to the order of forming the pixel portion coloring portions of the respective colors.

  The stacked pillar is formed by stacking two or more non-pixel colored portions of each color. The number of stacked non-pixel portion colored portions of each color may be two or more, and may be three, four, or more. Especially, it is preferable that the number of lamination | stacking of a non-pixel part coloring part is three layers.

  The configuration of the stacked pillar is not particularly limited as long as two or more non-pixel colored portions of each color are stacked. In addition, since the non-pixel part coloring part of each color is described in the section of the coloring layer described later, description thereof is omitted here.

  In addition, the first stacked columns and the second stacked columns need only be formed on the light-shielding portion in the display area, but among them, it is preferable that they are regularly formed. This is because the distribution of the spacer height at the portion where the stacked pillars are formed can be made uniform, and the gap accuracy can be further improved.

2. Colored layer The colored layer in the present invention has a plurality of color pixel portion coloring portions formed in the opening of the light shielding portion on the substrate and a plurality of color non-pixel portion coloring portions formed on the light shielding portion. In other words, the color of the pixel portion coloring portion and the color of the non-pixel portion coloring portion are the same color.

  The color of the pixel portion coloring portion and the non-pixel portion coloring portion may be a plurality of colors. For example, three colors of red (R), green (G), and blue (B), red (R), and green (G ), Blue (B), yellow (Y), red (R), green (G), blue (B), yellow (Y), cyan (C), etc. Usually red, green and blue.

  Each color pixel portion colored portion and non-pixel portion colored portion is formed by dispersing or dissolving a colorant such as a pigment or dye of each color in a binder resin, and is formed by a photolithography method.

Examples of the colorant used in the red (R) pixel portion coloring portion and non-pixel portion coloring portion include perylene pigments, lake pigments, azo pigments, quinacridone pigments, anthraquinone pigments, anthracene pigments, isoindoline. And pigments. These pigments may be used alone or in combination of two or more.
Examples of the colorant used in the green (G) pixel colored portion and non-pixel colored portion include phthalocyanine pigments such as halogen polysubstituted phthalocyanine pigments or halogen polysubstituted copper phthalocyanine pigments, and triphenylmethane bases. Dyes, isoindoline pigments, isoindolinone pigments and the like. These pigments or dyes may be used alone or in combination of two or more.
Examples of the colorant used in the blue (B) pixel portion coloring portion and non-pixel portion coloring portion include copper phthalocyanine pigments, anthraquinone pigments, indanthrene pigments, indophenol pigments, cyanine pigments, dioxazines. And pigments. These pigments may be used alone or in combination of two or more.

  As the binder resin used in the pixel portion coloring portion and the non-pixel portion coloring portion, for example, a photosensitive resin having a reactive vinyl group such as acrylate, methacrylate, polyvinyl cinnamate, or cyclized rubber is used. It is done. In this case, a photopolymerization initiator may be added to the photosensitive resin composition for a colored portion containing a colorant and a photosensitive resin, and further, a sensitizer, a coatability improver, and a development improvement as necessary. An agent, a crosslinking agent, a polymerization inhibitor, a plasticizer, a flame retardant, etc. may be added.

  The film thickness of the colored portion of the pixel portion of each color is usually set to about 1 μm to 5 μm.

3. Light-shielding part The light-shielding part in this invention is formed in a pattern shape on a board | substrate, and is provided with an opening part.

  The shape of the opening of the light shielding part is preferably a rectangular shape having a short side and a long side. As such a rectangular shape, for example, a rectangular shape or a shape surrounded by a rectangular shape may be used. Specifically, as the shape surrounded so as to be in contact with the rectangle, the opening 11 having a shape having a notch at the corner of the rectangle as illustrated in FIGS. 17A and 17B, FIG. 17C An elliptical opening 11 as illustrated in FIG. 17 and a polygonal opening 11 as illustrated in FIG.

Examples of the light shielding part include those obtained by dispersing or dissolving a black colorant in a binder resin, and metal thin films such as chromium and chromium oxide. This metal thin film may be a CrO _x film (x is an arbitrary number) and a laminate of two Cr films, and a CrO _x film (x is an arbitrary number) with a reduced reflectance. , CrN _y film (y is an arbitrary number) and three layers of Cr film may be laminated. Especially, it is preferable that a black colorant is disperse | distributed or melt | dissolved in binder resin in the point that the film thickness of a light-shielding part can be made comparatively thick.

In the above case, when a printing method or an inkjet method is used as a method for forming the light shielding portion, examples of the binder resin include polymethyl methacrylate resin, polyacrylate resin, polycarbonate resin, polyvinyl alcohol resin, polyvinyl pyrrolidone resin, hydroxy Examples thereof include ethyl cellulose resin, carboxymethyl cellulose resin, polyvinyl chloride resin, melamine resin, phenol resin, alkyd resin, epoxy resin, polyurethane resin, polyester resin, maleic acid resin, polyamide resin and the like.
In the above case, when a photolithography method is used as a method for forming the light shielding portion, the binder resin may be, for example, an acrylate-based, methacrylate-based, polyvinyl cinnamate-based, or cyclized rubber-based reactive material. A photosensitive resin having a vinyl group is used. In this case, a photopolymerization initiator may be added to the photosensitive resin composition for a light shielding part containing a black colorant and a photosensitive resin, and further, a sensitizer, a coating property improver, and a development as necessary. You may add an improving agent, a crosslinking agent, a polymerization inhibitor, a plasticizer, a flame retardant, etc.

  On the other hand, when the light shielding part is a metal thin film, the method for forming the light shielding part is not particularly limited as long as the light shielding part can be patterned. For example, a photolithography method or a mask is used. The vapor deposition method, the printing method, etc. can be mentioned.

  The thickness of the light shielding portion is set to about 0.2 μm to 0.4 μm in the case of a metal thin film, and about 0.5 μm to 2 μm in the case where a black colorant is dispersed or dissolved in a binder resin. Is set.

4). Transparent protective layer The transparent protective layer used for this invention is formed so that the said colored layer and a lamination pillar may be covered.

As a material used for the transparent protective layer, it is possible to prevent elution of contaminants into the liquid crystal layer from the colored layer, laminated column, and light shielding portion, and the colored layer surface should have excellent flatness. Anything that can do. As such a material, what is generally used as a transparent protective layer of a color filter can be used. For example, a chemically amplified photosensitive resin based on a crosslinked resin, specifically, a chemically amplified photosensitive resin obtained by adding a crosslinking agent to polyvinylphenol and further adding an acid generator, or a radical component by at least ultraviolet irradiation. A photopolymerization initiator that generates C, an acrylic group of C = C in the molecule, a component that undergoes a polymerization reaction by the generated radical and cures, and a functional group that allows unexposed portions to be dissolved by subsequent development An acrylic negative photosensitive resin containing (for example, a component having an acidic group in the case of development with an alkaline solution) can be mentioned, but an acrylic negative photosensitive resin is usually used.
Among the components having an acrylic group used in the above acrylic negative photosensitive resin, the relatively low molecular weight polyfunctional acrylic molecules include dipentaerythritol hexaacrylate (DPHA), dipentaerythritol pentaacrylate (DPPA), tetra And methyl pentatriacrylate (TMPTA). Moreover, as a high molecular weight polyfunctional acrylic molecule, the polymer etc. which introduce | transduced the acrylic group through the epoxy group to the one part carboxylic acid group part of a styrene-acrylic acid-benzylmethacrylate copolymer are mentioned.

  Further, a positive photosensitive resin using a novolac resin as a base resin can also be used.

  Examples of the method for applying the photosensitive resin composition for the transparent protective layer containing the above materials include spin coating, casting, dipping, bar coating, blade coating, roll coating, gravure coating, and flexographic printing. A spray coating method or the like can be used.

  The thickness of the transparent protective layer is preferably in the range of 0.1 μm to 10 μm, and more preferably in the range of 0.1 μm to 5 μm. By being within the above range, the elution of contaminants to the liquid crystal layer from the light shielding portion, the colored layer, and the stacked pillar can be suppressed.

5. Substrate As the material of the substrate used in the present invention, those conventionally used for color filters can be used. Examples of such materials include non-flexible transparent inorganic substrates such as quartz glass, Pyrex (registered trademark) glass, and synthetic quartz plates, and flexibility such as transparent resin films and optical resin plates. Examples thereof include a transparent resin substrate. In particular, it is preferable to use an inorganic substrate in this step, and it is preferable to use a glass substrate among inorganic materials. Furthermore, it is preferable to use an alkali-free type glass substrate among the glass substrates. The alkali-free glass substrate is excellent in dimensional stability and workability in high-temperature heat treatment, and does not contain an alkali component in the glass, and therefore can be suitably used for a color filter for a liquid crystal display device. It is.

  The substrate may be a transparent substrate, or may be a reflective substrate or a white one, but a transparent substrate is usually used in the present invention.

6). Transparent electrode layer In this invention, the transparent electrode layer may be formed in the surface on the opposite side to the surface in which the light-shielding part of the said board | substrate, a colored layer, and a lamination | stacking pillar are formed.

  Examples of the material for forming the transparent electrode layer include indium tin oxide (ITO), indium oxide, indium zinc oxide (IZO), zinc oxide, and tin oxide.

  As a method for forming the transparent electrode layer, for example, a method of forming a thin film by a vacuum deposition method, a sputtering method, an ion plating method or the like and patterning by a photolithography method is preferably used.

  Moreover, as a film thickness of a transparent electrode layer, it is normally set by about 100 nm-300 nm.

7). Alignment film In the present invention, an alignment film may be formed on the transparent protective layer.
The alignment film is not particularly limited as long as it has an alignment function for aligning liquid crystal molecules, and examples thereof include a photo alignment film and a rubbing alignment film.

B. Next, a method for manufacturing a color filter for a horizontal electric field liquid crystal drive system according to the present invention will be described.
The method for manufacturing a color filter for a lateral electric field liquid crystal driving system according to the present invention includes a substrate, a light-shielding portion formed in a pattern on the substrate and having an opening, and k (k is 2 or more) formed in the opening. An integer) color pixel portion coloring portion, and a non-pixel portion coloring portion of k color of the same color as the pixel portion coloring portion of each color, and a predetermined side direction of the opening A colored layer in which the color of the pixel portion coloring portion adjacent to the same color, and a plurality of stacked pillars formed on the light-shielding portion in the display region, wherein two or more non-pixel portion coloring portions of each color are stacked A transparent protective layer formed so as to cover the colored layer and the laminated column, and the laminated column has a first laminated column and a second laminated column in which the number of laminated portions of the non-pixel portion colored portion is equal. The spacer height of the portion where the first laminated pillar is formed is the same as that of the second laminated pillar. A method of manufacturing a color filter for a horizontal electric field liquid crystal driving method for manufacturing a color filter for a horizontal electric field liquid crystal driving method, which is higher than the spacer height of the portion being provided, on the substrate on which the light shielding portion is formed, m (m is any integer from 1 to k-1) is applied to form a colored portion-forming layer by applying a photosensitive resin composition for a colored portion, and the m-colored portion is formed. The pattern layer is exposed and developed on the working layer to form the m-color pixel portion coloring portion in the opening portion adjacent to the predetermined side direction, and the m-th pixel portion coloring portion is sandwiched between the opening portions where the m-color pixel portion coloring portion is formed. The m-th non-layer is formed in the first multi-layered column forming region and the second multi-layered column forming region sandwiched between the openings in which the colored portion of the pixel portion of n (n is an integer from m + 1 to k) is formed. An m-th colored portion forming step for forming the colored portion of the pixel portion; An n-th colored coloring resin photosensitive resin composition is applied on a substrate on which a light-shielding portion, the m-th color pixel-colored portion, and the m-th non-pixel colored portion are formed. Forming a portion forming layer, performing pattern exposure and development on the nth colored portion forming layer, forming an nth pixel colored portion in an opening adjacent to a predetermined side direction, and And an n-th colored portion forming step of forming an n-th non-pixel portion colored portion in the stacked column forming region and the second stacked column forming region.

The manufacturing method of the color filter for a horizontal electric field liquid crystal drive system of this invention is demonstrated referring drawings.
FIG. 5 is a process diagram showing an example of a method for producing a color filter for a lateral electric field liquid crystal driving system according to the present invention, wherein the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors, and the non-pixel portion coloring portion. This is an example of a method of manufacturing a color filter for a lateral electric field liquid crystal driving method when the number of stacked layers is three. 6A is a cross-sectional view taken along the line DD in FIG. 5C, and FIG. 6B is a cross-sectional view taken along the line EE in FIG. 5C.

  First, as shown in FIG. 5A, a color filter forming substrate having a substrate 2 and a light shielding portion 3 formed on the substrate 2 and having an opening 11 is prepared.

  Next, as shown in FIG. 5 (b), the photosensitive resin composition for the first color red-colored portion is applied on the substrate 2 on which the light-shielding portion 3 is formed. A layer is formed, and pattern exposure and development are performed on the first color red colored portion forming layer to form the first color red pixel portion colored portion 4R in the opening 11 adjacent to the long side direction p of the opening. At this time, the first stacked pillar forming region 12 sandwiched between the opening 11 where the first color red pixel portion coloring portion 4R is formed and the opening 11 where the second color blue pixel portion coloring portion is formed. In the second stacked pillar forming region 13 to be formed, the first red non-pixel colored portion 5R is simultaneously formed.

  Next, as shown in FIG. 5 (c), the second blue color is formed on the substrate 2 on which the light shielding portion 3, the first-color red pixel portion coloring portion 4R, and the first-layer red non-pixel portion coloring portion 5R are formed. The photosensitive resin composition for the landing part is applied to form a second colored blue colored part forming layer, the second colored blue colored part forming layer is subjected to pattern exposure and development, and the long side direction of the opening A blue pixel portion coloring portion 4B of the second color is formed in the opening 11 adjacent to p. At this time, the first stacked column forming region 12 sandwiched between the opening 11 where the first color red pixel portion coloring portion 4R is formed and the opening 11 where the second color blue pixel portion coloring portion 4B is formed. A second non-pixel portion colored portion 5B of the second layer is simultaneously formed in the second stacked pillar forming region 13 sandwiched between the layers.

  Next, as shown in FIG. 5D, the light-shielding portion 3, the first-color red pixel portion coloring portion 4R, the first-layer red non-pixel portion coloring portion 5R, the second-color blue pixel portion coloring portion 4B, and the two layers On the substrate 2 on which the blue non-pixel colored portion 5B of the eye is formed, the third color green colored portion photosensitive resin composition is applied to form a third colored green colored portion forming layer. Pattern exposure and development are performed on the green colored portion forming layer of the color, and the green pixel portion colored portion 4G of the third color is formed in the opening 11 adjacent to the long side direction p of the opening. At this time, in the first stacked column forming region 12 sandwiched between the opening 11 where the first color red pixel portion coloring portion 4R is formed and the opening 11 where the second color blue pixel portion coloring portion is formed. A third green non-pixel portion colored portion 5G is simultaneously formed in the sandwiched second stacked column forming region 13.

Thus, the 1st lamination pillar 6 and the 2nd lamination pillar 7 in which the non-pixel part coloring part of three colors was laminated are formed.
Then, although not shown in figure, a transparent protective layer is formed so that a colored layer and a lamination pillar may be covered.

  As described above, as the method for forming the pixel portion colored portion and the non-pixel portion colored portion of each color, a method of applying the photosensitive resin composition for the colored portion of each color, and exposing and developing is used. In the method for producing a color filter for a lateral electric field liquid crystal driving system illustrated in FIG. 5, when forming the second color blue colored portion, specifically, first, a blue colored portion photosensitive resin composition is applied and then blue colored. The part forming layer 20B is formed (FIGS. 6A and 6B). Here, although not shown, the substrate 2 on which the light shielding portion 3, the red pixel portion coloring portion 4R, and the red non-pixel portion coloring portion 5R are formed immediately after the application of the photosensitive resin composition for the blue coloring portion of the second color. On top, the blue colored portion forming layer 20B is formed with a relatively uniform thickness. Thereafter, the blue colored portion forming layer 20B on the first red non-pixel portion colored portion 5R is gradually leveled down to a lower position (FIGS. 6A and 6B). Therefore, exposure and development are performed, and the thickness of the blue non-pixel portion colored portion 5B of the second layer that is finally formed is thin.

  When the above leveling occurs, as shown in FIG. 6A, in the first stacked columnar region 12 sandwiched between the openings 11 where the red pixel portion coloring portions 4R are formed, the first red non-pixel portion is colored. The blue colored portion forming layer 20B on the portion 5R flows down to the surface of the red pixel portion colored portion 4R. On the other hand, as shown in FIG. 6B, in the second stacked columnar region 13 sandwiched by the opening 11 where the blue pixel portion coloring portion 4B is formed, the blue color on the first red non-pixel portion coloring portion 5R is formed. The colored portion forming layer 20 </ b> B flows down to the surface of the substrate 2. When flowing from the surface of the red non-pixel colored portion 5R to the surface of the substrate 2 (FIG. 6 (b)), it flows from the surface of the red non-pixel colored portion 5R to the surface of the red pixel colored portion 4R ( Compared to FIG. 6 (a)), the drop when the blue colored portion forming layer 20B flows down is large. Therefore, in the second stacked columnar region 13, the thickness of the blue colored portion forming layer 20B on the first red non-pixel portion colored portion 5R is further reduced (FIG. 6B). Therefore, in the second stacked pillar region 13, the thickness of the blue non-pixel portion colored portion 5 </ b> B of the second layer that is finally formed is further reduced.

  In the example shown in FIG. 5, the first color red pixel portion coloring portion 4R is formed in the opening 11 adjacent to the predetermined side direction, and the first red non-pixel portion coloring portion 5R is formed in the first color. First stacked column forming region 12 sandwiched between the opening 11 where the red pixel portion coloring portion 4R is formed, and second stacked column forming sandwiched between the opening 11 where the second color blue pixel portion coloring portion 4B is formed The blue pixel portion coloring portion 4B of the second color is formed in the region 13 and the opening 11 adjacent to the predetermined side direction, and the blue non-pixel portion coloring portion 5B of the second layer is formed of the first color First stacked column forming region 12 sandwiched between the opening 11 where the red pixel portion coloring portion 4R is formed, and second stacked column forming sandwiched between the opening 11 where the second color blue pixel portion coloring portion 4B is formed Formed in region 13. As a result, when the blue non-pixel portion colored portion 5B of the second layer is formed, the red pixel portion colored portion 4R of the first color has already been formed in the openings 11 on both sides in the first stacked pillar forming region 12. Leveling of the photosensitive resin composition for the blue colored portion of the second color can be suppressed. Further, in the second laminated column forming region 13, since the second color blue pixel portion coloring portion 4B has not yet been formed in the openings 11 on both sides, the leveling of the photosensitive resin composition for the second color blue coloring portion is performed. Can be promoted. Therefore, as illustrated in FIG. 4, the thickness y2 of the second-layer blue non-pixel portion coloring portion 5B constituting the second stacked column 7 is set to the second-layer blue non-pixel portion configuring the first stacked column 6. It can be made thinner than the thickness x2 of the colored portion 5B. As a result, the spacer height h2 at the portion where the second stacked pillars 7 are formed can be made lower than the spacer height h1 at the portion where the first stacked pillars 6 are formed.

  In the present invention, the color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more), and the coloring layer is a pixel portion coloring portion adjacent to the opening in a predetermined side direction. When the colors are the same color, the m-th color pixel portion coloring portion is formed in the opening adjacent to the predetermined side direction, and the m-th non-pixel portion coloring portion is replaced with the m-th color pixel. An m-th colored portion forming step formed in a region sandwiched between the opening where the colored portion is formed and a region sandwiched between the opening where the pixel portion colored portion for the (m + 1) th and subsequent colors is formed; An n-th color pixel portion coloring portion is formed in an opening adjacent in a predetermined side direction, and the m-th pixel portion coloring portion is formed as an n-th non-pixel portion coloring portion after the (m + 1) th layer. The area sandwiched between the openings and the pixel portion coloring portion of the nth color after the (m + 1) th color And a second n colored portion forming step of forming a region between the openings being.

  That is, the m-th non-pixel colored portion is sandwiched between the area where the m-th colored pixel portion colored portion is formed and the opening where the (m + 1) th and subsequent n-th color pixel colored portions are formed. The non-pixel portion coloring portion of the nth layer after the (m + 1) th layer is formed in the region where the pixel portion coloring portion of the mth color is formed, and the pixel portion of the nth color after the (m + 1) th color is colored. It is formed in a region sandwiched between the openings where the portions are formed. Thus, when forming the non-pixel portion colored portion of the nth layer from the (m + 1) th layer onward, in the region sandwiched between the openings where the pixel portion colored portions of the m color are formed, the mth color pixels are already in the openings on both sides. Since the part coloring part is formed, the leveling of the photosensitive resin composition for the coloring part of the nth color after the (m + 1) th color can be suppressed. On the other hand, in the region sandwiched between the openings where the m + 1-th color and subsequent n-th color pixel portion coloring portions are formed, the m + 1-th color and subsequent n-th color pixel portion coloring portions are not yet formed in the openings on both sides. The leveling of the photosensitive resin composition for the colored portion of the nth color after the (m + 1) th color can be promoted. As a result, the thickness of the non-pixel part coloring part of the nth layer after the (m + 1) th layer in the region sandwiched by the openings where the pixel part coloring part of the nth color after the (m + 1) th color is formed is set to the pixel part coloring part of the mth color. Can be made thinner than the thickness of the non-pixel portion colored portion of the nth layer after the (m + 1) th layer in the region sandwiched between the openings where the is formed. Therefore, the spacer height of the part where the second stacked pillars are formed can be made lower than the spacer height of the part where the first stacked pillars are formed.

  As described above, in the present invention, the spacer height can be adjusted as described above, and the spacer height can be adjusted by adjusting the area of the non-pixel portion coloring portion constituting the stacked pillar as in the conventional case. Since the adjustment is not performed, the area of the first stacked pillar and the second stacked pillar is not limited by the adjustment of the spacer height. Therefore, it is possible to make the upper bottom area of the transparent protective layer in the part where the second laminated pillar is formed larger than the upper bottom area of the transparent protective layer in the part where the first laminated pillar is formed.

  Accordingly, in the liquid crystal display device using the color filter for the lateral electric field liquid crystal driving method manufactured according to the present invention, when a large load is applied, the transparent protective layer of the portion where the second stacked pillar is formed Since the upper bottom area is larger than the upper bottom area of the transparent protective layer at the portion where the first laminated pillar is formed, the second laminated pillar can be made difficult to deform, and the resistance against the load is increased. be able to. Accordingly, it is difficult for the liquid crystal display device to be displaced below the spacer height at the portion where the second stacked pillars are formed, and further displacement of the liquid crystal display device can be reduced.

  On the other hand, in the liquid crystal display device, when a minute load is applied, a load is applied to the first stacked column, and a drag against the load is small. Therefore, the first stacked column is easily deformed, and the liquid crystal display The amount of displacement of the device can be increased.

  Therefore, by using the color filter for the lateral electric field liquid crystal driving system manufactured according to the present invention, the amount of displacement in the minute load region is large, and gravity unevenness, low-temperature foaming, etc. are not generated, and the local load is applied. In addition, it is possible to obtain a high-quality liquid crystal display device that has sufficient resistance and can maintain a constant cell gap.

  The “first stacked column forming region” means m (m is 1 or more and k−1 or less) when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more). Any one of the integers) refers to a region sandwiched between the openings where the colored portion of the colored portion is formed. The m-color pixel portion coloring portion has the same color as the m-th non-pixel portion coloring portion constituting the stacked pillar. Usually, the first stacked column forming region is a region sandwiched only by the sides of the opening. For example, in FIG. 5, the first stacked column forming region 12 is a region sandwiched only by the short side of the opening 11 where the red pixel portion colored portion 5R of the first color is formed, and the first stacked column 6 is formed. It becomes an area.

  Further, the “second stacked column forming region” means n (n is an integer of m + 1 or more and k or less) when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more). Any one of them] means a region sandwiched between the openings where the colored pixel portion colored portions are formed. The n-color pixel portion coloring portion has the same color as the n-th non-pixel portion coloring portion constituting the stacked pillar. Usually, the second stacked pillar forming region is a region sandwiched only by the sides of the opening. For example, in FIG. 5, the second stacked column forming region 13 is a region sandwiched only by the short side of the opening 11 in which the second color blue pixel portion colored portion 5B is formed, and the second stacked column 7 is formed. It becomes an area.

  As described above, in the present invention, the non-pixel portion coloring portion of the mth layer is divided into the region sandwiched by the openings where the pixel portion coloring portion of the m color is formed and the pixel portion coloring portion of the nth color after the (m + 1) th color. Formed in a region sandwiched by the openings where the m + 1-th layer and the n + 1-th non-pixel portion colored portion are formed, and the m + 1-th color and the region sandwiched between the openings in which the m-th pixel portion colored portion is formed It is formed in a region sandwiched between openings where subsequent n-th color pixel portion coloring portions are formed. Therefore, when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more), m is k−1 or less and n is m + 1 or more. That is, m is any integer from 1 to k-1, and n is any integer from m + 1 to k.

  Further, when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of non-pixel portion coloring portions is three, the m-th coloring portion forming step is performed by coloring the first color pixel portion. A first stacked column forming region between the first layer non-pixel portion coloring portion and the opening where the first color pixel portion coloring portion is formed, and 2 Forming a second layered pillar forming region sandwiched between openings where the colored pixel portion colored portions are formed, wherein the nth colored portion forming step places the second colored pixel portion colored portions in a predetermined side direction. A first stacked column forming region and a second color pixel portion coloring portion are formed in adjacent openings, and the second non-pixel portion coloring portion is sandwiched by the opening where the first color pixel portion coloring portion is formed. It is preferable that the step is a step of forming in the second stacked column forming region sandwiched between the formed openings. . Thereby, the color filter for a horizontal electric field liquid crystal drive system as illustrated in FIGS. 1 to 4 can be obtained. In this lateral electric field liquid crystal driving type color filter, the thickness (y2) of the second non-pixel portion coloring portion constituting the second stacked column is equal to the second non-pixel portion coloring portion constituting the first stacked column. The spacer height of the portion where the second laminated pillar is formed is lower than the thickness (x2) of the first laminated pillar, and the spacer height of the portion where the first laminated pillar is formed is lower, and the second laminated pillar is formed. The upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed is larger than the upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed.

  Further, when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of non-pixel portion coloring portions is three, the m-th coloring portion forming step is performed by coloring the first color pixel portion. A first layered column forming region between the first layer non-pixel portion coloring portion and the opening portion where the first color pixel portion coloring portion is formed, and 3 Forming a second layered pillar forming region sandwiched between openings where the colored pixel portion colored portion is formed, wherein the nth colored portion forming step is configured to place the third color pixel portion colored portion in a predetermined side direction. A first stacked column forming region and a third color pixel portion coloring portion are formed in adjacent openings, and the third non-pixel portion coloring portion is sandwiched by the opening where the first color pixel portion coloring portion is formed. It is also preferable that it is a step of forming in the second stacked column forming region sandwiched between the formed openings. . Thereby, the color filter for a horizontal electric field liquid crystal drive system as illustrated in FIGS. 1 and 7 to 9 can be obtained. In this lateral electric field liquid crystal driving type color filter, the thickness (y2) of the second non-pixel portion coloring portion constituting the second stacked column is equal to the second non-pixel portion coloring portion constituting the first stacked column. The thickness (y3) of the third non-pixel portion colored portion constituting the second stacked column is smaller than the thickness (x2) of the third layer, and the thickness of the third non-pixel portion colored portion constituting the first stacked column is The portion where the second stacked pillar is formed, and the spacer height of the portion where the second stacked pillar is formed is lower than the spacer height of the portion where the first stacked pillar is formed. The upper bottom area of the transparent protective layer is larger than the upper bottom area of the transparent protective layer at the portion where the first laminated pillar is formed.

  Further, when the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of the non-pixel portion coloring portions is three layers, the m-th coloring portion forming step performs the coloring of the second color pixel portion. A first layered column forming region, and a third non-pixel portion colored portion sandwiched between openings formed with the second color pixel portion colored portion, and 3 Forming a second layered pillar forming region sandwiched between openings where the colored pixel portion colored portion is formed, wherein the nth colored portion forming step is configured to place the third color pixel portion colored portion in a predetermined side direction. A first stacked column forming region and a third color pixel portion coloring portion are formed in adjacent openings, and the third layer non-pixel portion coloring portion is sandwiched by the opening where the second color pixel portion coloring portion is formed. It is also preferable that it is a step of forming in the second stacked column forming region sandwiched between the formed openings. There. Thereby, the color filter for a horizontal electric field liquid crystal drive system as illustrated in FIGS. 8 and 10 to 12 can be obtained. In this horizontal electric field liquid crystal driving type color filter, the thickness (y3) of the third non-pixel portion coloring portion constituting the second stacked column is equal to the third non-pixel portion coloring portion constituting the first stacked column. The spacer height of the portion where the second stacked pillar is formed is lower than the spacer height of the portion where the first stacked pillar is formed, and the second stacked pillar is formed. The upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed is larger than the upper bottom area of the transparent protective layer in the portion where the first laminated pillar is formed.

  When the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors and the number of laminations of the non-pixel portion coloring portion is three layers, the spacer height of the portion where the first lamination pillar is formed and the second lamination Since the difference from the spacer height of the portion where the column is formed can be easily increased, among the above, the m-th colored portion forming step is adjacent to the first color pixel portion colored portion in a predetermined side direction. Forming a first non-pixel portion coloring portion of the first layer and a first layered column forming region and a third color pixel portion coloring portion sandwiched by the opening where the pixel portion coloring portion of the first color is formed The n-th colored portion forming step forms the third color pixel portion colored portion in the opening adjacent to the predetermined side direction. The non-pixel part coloring part of the third layer is formed by the pixel part coloring part of the first color It is preferred is a process of forming the second laminate pillar forming region where the pixel portion colored portion of the first stacked pillar forming region and the third color sandwiched opening is sandwiched opening formed.

As a method for forming the colored portion in the m-th colored portion forming step and the n-th colored portion forming step, a general photolithography method can be applied.
Moreover, the manufacturing method of the color filter for a horizontal electric field liquid crystal drive system of this invention has the process of forming each structural member in addition to the said mth colored part formation process and nth colored part formation process. In addition, since the formation method of each structural member was described in the above-mentioned item of “A. Color filter for lateral electric field liquid crystal driving method”, the description here is omitted.
Further, the color filter for the horizontal electric field liquid crystal driving method manufactured according to the present invention has been described in detail in the section “A. Color filter for the horizontal electric field liquid crystal driving method”, and therefore, the description thereof is omitted here.

  The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.

  Hereinafter, the present invention will be specifically described with reference to examples.

[Example 1]
1. Formation of light shielding portion As a transparent substrate, a glass substrate (Corning 1737 glass) having a size of 300 mm × 400 mm and a thickness of 0.7 mm was prepared. This transparent substrate is washed according to a conventional method, and then a negative photosensitive black resist (CFPR DN-83, manufactured by Tokyo Ohka Kogyo Co., Ltd.) is applied, exposed, developed, and heat-treated through a predetermined mask to obtain vertical stripes. A lattice-shaped light shielding portion having a line width of 10 μm, a vertical stripe pitch of 150 μm, a horizontal stripe line width of 75 μm, and a horizontal stripe pitch of 450 μm was formed. Thereby, openings having a short side of 140 μm and a long side of 375 μm were formed at intervals of 10 μm in the short side direction and at intervals of 75 μm in the long side direction. Further, the region sandwiched between the openings adjacent in the long side direction was a rectangular region having a length of 75 μm in the long side direction of the opening and 140 μm in the short side direction of the opening.

2. Formation of Colored Layer and Laminate Column Next, a negative photosensitive resin composition for a red colored portion, a negative photosensitive resin composition for a blue colored portion, and a negative photosensitive resin composition for a green colored portion having the following composition A product was prepared.

<Negative photosensitive resin composition for red colored portion>
・ Red pigment (Chromophthal Red A2B manufactured by Ciba Specialty Chemicals)
4.8 parts by weight / yellow pigment (PASFOL Yellow D1819, manufactured by BASF) 1.2 parts by weight / dispersant (Disperbic 161, manufactured by Big Chemie) 3.0 parts by weight / monomer (SR399, manufactured by Sartomer) 4.0 weight Part / Polymer I 5.0 parts by weight / Initiator (Irgacure 907 manufactured by Ciba Specialty Chemicals)
1.4 parts by weight / initiator (2,2′-bis (o-chlorophenyl) -4,5,4 ′, 5′-tetraphenyl-1,2′-biimidazole) 0.6 parts by weight / solvent ( Propylene glycol monomethyl ether acetate) 80.0 parts by weight

<Negative photosensitive resin composition for blue colored portion>
Blue pigment (BASF Heliogen Blue L6700F) 6.0 parts by weight Pigment derivative (Abyssia Solsperse 5000) 0.6 parts by weight Dispersant (Bic Chemie Dispersic 161) 2.4 parts by weight Monomer (SR399, manufactured by Sartomer) 4.0 parts by weight, Polymer I, 5.0 parts by weight, initiator (Irgacure 907, manufactured by Ciba Specialty Chemicals)
1.4 parts by weight / initiator (2,2′-bis (o-chlorophenyl) -4,5,4 ′, 5′-tetraphenyl-1,2′-biimidazole) 0.6 parts by weight / solvent ( Propylene glycol monomethyl ether acetate) 80.0 parts by weight

<Negative photosensitive resin composition for green coloring part>
Green pigment (Avisia Monastral Green 9Y-C) 4.2 parts by weight Yellow pigment (BASF Paliotor Yellow D1819) 1.8 parts by weight Dispersant (Bicchemy Disperbic 161) 3.0 Part by weight / monomer (SR399, manufactured by Sartomer) 4.0 part by weight / Polymer I, 5.0 parts by weight / initiator (Irgacure 907, manufactured by Ciba Specialty Chemicals)
1.4 parts by weight / initiator (2,2′-bis (o-chlorophenyl) -4,5,4 ′, 5′-tetraphenyl-1,2′-biimidazole) 0.6 parts by weight / solvent ( Propylene glycol monomethyl ether acetate) 80.0 parts by weight

The polymer I is based on 100 mol% of a copolymer of benzyl methacrylate: styrene: acrylic acid: 2-hydroxyethyl methacrylate = 15.6: 37.0: 30.5: 16.9 (molar ratio). 2-methacryloyloxyethyl isocyanate was added at 16.9 mol%, and the weight average molecular weight was 42500.
Here, the said weight average molecular weight is calculated | required as a standard polystyrene conversion value by gel permeation chromatography (GPC).

  Next, a negative photosensitive resin composition for a red colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and exposed and developed through a photomask for the red colored portion, A red colored portion was formed. At this time, a striped red colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. A dot-like red colored portion having a diameter of 50 μm was simultaneously formed on the light shielding portion between the openings where the blue colored portion of the second color was formed.

  Next, a negative photosensitive resin composition for a blue colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and is exposed and developed through a photomask for the blue colored portion, A blue colored portion was formed. At this time, a striped blue colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. A dot-like blue colored portion having a diameter of 30 μm was simultaneously formed on the light-shielding portion between the openings where the red colored portion of the first color was formed.

  Next, a negative photosensitive resin composition for the green colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and exposed and developed through a photomask for the green colored portion, A green colored portion was formed. At this time, a striped green colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. A dot-like green colored portion having a diameter of 25 μm was simultaneously formed on the light-shielding portion between the openings where the red colored portion of the first color was formed, so as to overlap the dot-like blue colored portion. At this time, a dot-like green colored portion having a diameter of 45 μm was simultaneously formed on the light-shielding portion between the openings where the second color blue colored portion was formed.

3. Formation of Transparent Protective Layer Next, the following protective layer composition was applied as a protective layer composition onto the glass substrate on which the colored layer had been formed by a spin coating method.
<Composition of composition for protective layer>
・ Methyl methacrylate-styrene-acrylic acid copolymer 32 parts by weight ・ Epicoat 180S70 (Japan Epoxy Resin Co., Ltd.) 18 parts by weight ・ Dipentaerythritol pentaacrylate 42 parts by weight ・ Initiator (Irgacure 907 manufactured by Ciba Specialty Chemicals) ) 8 parts by weight 3-methoxybutyl acetate (referred to as Metoace) 300 parts by weight

Next, after drying under reduced pressure at a vacuum degree of about 1 × 10 ⁻² Torr and prebaking at 90 ° C., a photomask is placed at a distance of 100 μm from the coating film of the protective layer composition, and 2 by a proximity aligner. Using an ultra-high pressure mercury lamp of 0.0 kW, the region corresponding to the colored layer forming region including the light shielding portion was irradiated with ultraviolet rays for 10 seconds. Next, it was immersed in a 0.05% aqueous potassium hydroxide solution (liquid temperature: 23 ° C.) for 1 minute and alkali-developed, and only the uncured portion of the coating film was removed to form a transparent protective layer, thereby producing a color filter. .

4). Production of Liquid Crystal Display Device A polyimide-based alignment film was formed on the color filter substrate and subjected to rubbing treatment. In addition, a counter substrate provided with a thin film transistor element and having a transparent electrode formed thereon was produced. Similarly, a polyimide-based alignment film was formed on the counter substrate and subjected to rubbing treatment. After the color filter substrate provided with the alignment film and the counter substrate were bonded together using a sealing material, liquid crystal was injected from an injection port provided in the seal portion. The liquid crystal was injected by leaving the empty cell under reduced pressure and then immersing the injection port in a liquid crystal tank to return to normal pressure. After injecting the liquid crystal, the injection port was sealed, and a polarizing plate was attached to the outside of the color filter substrate and the counter substrate to produce a liquid crystal display device.

[Example 2]
As shown below, a color filter and a liquid crystal display device were produced in the same manner as in Example 1 except that a colored layer and a laminated column were formed.

  A negative photosensitive resin composition for a red colored portion is applied by a spin coating method so as to cover a light shielding portion on a transparent substrate, and is exposed and developed through a photomask for a red colored portion, thereby red colored portions. Formed. At this time, a striped red colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. In addition, a dot-like red colored portion having a diameter of 50 μm was simultaneously formed on the light shielding portion between the openings where the third color green colored portion was formed.

  Next, a negative photosensitive resin composition for a blue colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and is exposed and developed through a photomask for the blue colored portion, A blue colored portion was formed. At this time, a striped blue colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. A dot-like blue colored portion having a diameter of 30 μm was simultaneously formed on the light-shielding portion between the openings where the red colored portion of the first color was formed. At this time, a dot-like blue colored portion having a diameter of 45 μm was simultaneously formed on the light shielding portion between the openings where the third color green colored portion was formed.

  Next, a negative photosensitive resin composition for the green colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and exposed and developed through a photomask for the green colored portion, A green colored portion was formed. At this time, a striped green colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. A dot-like green colored portion having a diameter of 25 μm was simultaneously formed on the light-shielding portion between the openings where the red colored portion of the first color was formed so as to overlap the dot-like blue colored portion.

[Comparative Example 1]
As shown below, a color filter and a liquid crystal display device were produced in the same manner as in Example 1 except that a colored layer and a laminated column were formed.

  A negative photosensitive resin composition for a red colored portion is applied by a spin coating method so as to cover a light shielding portion on a transparent substrate, and is exposed and developed through a photomask for a red colored portion, thereby red colored portions. Formed. At this time, a striped red colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening.

  Next, a negative photosensitive resin composition for a blue colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and is exposed and developed through a photomask for the blue colored portion, A blue colored portion was formed. At this time, a striped blue colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. A dot-like blue colored portion having a diameter of 30 μm was simultaneously formed on the light-shielding portion between the openings where the red colored portion of the first color was formed. At this time, a dot-like blue colored portion having a diameter of 20 μm was simultaneously formed at a position different from the above on the light-shielding portion between the openings where the red colored portion of the first color was formed.

  Next, a negative photosensitive resin composition for the green colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and exposed and developed through a photomask for the green colored portion, A green colored portion was formed. At this time, a striped green colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. A dot-like green colored portion having a diameter of 25 μm was simultaneously formed on the light-shielding portion between the openings where the red colored portion of the first color was formed, so as to overlap the dot-like blue colored portion. At this time, a dot-like green colored portion having a diameter of 15 μm was simultaneously formed at a position different from the above on the light-shielding portion between the openings where the red colored portion of the first color was formed.

[Comparative Example 2]
As shown below, a color filter and a liquid crystal display device were produced in the same manner as in Example 1 except that a colored layer and a laminated column were formed.

  A negative photosensitive resin composition for a red colored portion is applied by a spin coating method so as to cover a light shielding portion on a transparent substrate, and is exposed and developed through a photomask for a red colored portion, thereby red colored portions. To form a first colored layer. At this time, a striped red colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening.

  Next, a negative photosensitive resin composition for a blue colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and is exposed and developed through a photomask for the blue colored portion, A blue colored portion was formed. At this time, a striped blue colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. In addition, a dot-like blue colored portion having a diameter of 30 μm was simultaneously formed on the light-shielding portion between the openings where the red colored portion of the first color was formed. At this time, a dot-like blue colored portion having a diameter of 50 μm was simultaneously formed at a position different from the above on the light shielding portion between the openings where the red colored portion of the first color was formed.

  Next, a negative photosensitive resin composition for the green colored portion is applied by a spin coating method so as to cover the light shielding portion on the transparent substrate, and exposed and developed through a photomask for the green colored portion, A green colored portion was formed. At this time, a striped green colored portion having a vertical stripe line width of 145 μm was formed at a predetermined position of the opening. A dot-like green colored portion having a diameter of 25 μm was simultaneously formed on the light-shielding portion between the openings where the red colored portion of the first color was formed so as to overlap the dot-like blue colored portion. At this time, a dot-like green colored portion having a diameter of 45 μm was simultaneously formed at a position different from the above on the light shielding portion between the openings in which the red colored portion of the first color was formed.

[Evaluation]
1. Measurement of Color Filter The spacer height of the color filter produced as described above and the upper bottom area of the transparent protective layer at the site where the laminated pillars are formed were measured.
The results are shown in Table 1. From Table 1, in Examples 1 and 2, a color filter having a desired spacer height and upper bottom area could be obtained.

2. Evaluation of liquid crystal display (finger press test)
A part of the display portion of the liquid crystal display device manufactured as described above was strongly pressed with a finger, and display unevenness before and after the pressing was visually determined.
(Low temperature foaming test)
The liquid crystal display device produced as described above was stored at a temperature of −40 ° C. for 20 hours, and then the display unevenness when returned to room temperature was visually determined.
In the determination, a case where the display unevenness could not be visually confirmed was evaluated as ◯, and a case where the display unevenness was confirmed was evaluated as x.
The results are shown in Table 2. From Table 2, in Example 1, 2, the liquid crystal display device without a display nonuniformity was able to be obtained by the finger press test and the low-temperature foaming test.

It is a schematic plan view which shows an example of the color filter for horizontal electric field liquid crystal drive systems of this invention. It is the sectional view on the AA line in FIG. 1, and the FF sectional view taken on the line in FIG. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG. It is process drawing which shows an example of the manufacturing method of the color filter for horizontal electric field liquid crystal drive systems of this invention. 6A is a cross-sectional view taken along the line DD in FIG. 5C, and FIG. 6B is a cross-sectional view taken along the line EE in FIG. 5C. It is a schematic plan view which shows the other example of the color filter for horizontal electric field liquid crystal drive systems of this invention. It is the GG sectional view taken on the line in FIG. 7, and the JJ sectional view taken on the line in FIG. It is the HH sectional view taken on the line in FIG. It is a schematic plan view which shows the other example of the color filter for horizontal electric field liquid crystal drive systems of this invention. It is the II sectional view taken on the line in FIG. It is the KK sectional view taken on the line in FIG. It is a schematic plan view which shows the other example of the color filter for horizontal electric field liquid crystal drive systems of this invention. It is the LL sectional view taken on the line in FIG. It is the MM sectional view taken on the line in FIG. It is the NN sectional view taken on the line in FIG. It is a schematic diagram which shows an example of the opening part of the light-shielding part in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Color filter for a horizontal electric field liquid crystal drive system 2 ... Board | substrate 3 ... Light-shielding part 4R ... Red pixel part coloring part 4G ... Green pixel part coloring part 4B ... Blue pixel part coloring part 5R ... Red non-pixel part coloring part 5G ... Green non-coloring Pixel portion coloring portion 5B ... Blue non-pixel portion coloring portion 6 ... First stacked column 7 ... Second stacked column 8 ... Transparent protective layer 11 ... Opening portion of light shielding portion 12 ... First stacked column forming region 13 ... Second stacked column Formation region d1 ... Height of the first laminated column d2 ... Height of the second laminated column h1 ... Spacer height of the portion where the first laminated column is formed h2 ... Spacer of the portion where the second laminated column is formed height

Claims (5)

A substrate,
A light-shielding portion formed in a pattern on the substrate and provided with an opening;
A plurality of color pixel portion coloring portions formed in the opening, and a coloring layer formed on the light shielding portion and having a plurality of non-pixel portion coloring portions of the same color as the pixel portion coloring portions of the respective colors;
A plurality of stacked pillars formed on the light-shielding portion in the display area, wherein the non-pixel portion colored portions of each color are stacked in two or more layers;
A color filter for a lateral electric field liquid crystal driving system having a transparent protective layer formed so as to cover the colored layer and the laminated pillar,
The stacked column has a first stacked column and a second stacked column in which the number of stacked non-pixel colored portions is equal,
The spacer height of the part where the first laminated pillar is formed is higher than the spacer height of the part where the second laminated pillar is formed,
An upper bottom area of the transparent protective layer in a portion where the first laminated pillar is formed is smaller than an upper bottom area of the transparent protective layer in a portion where the second laminated pillar is formed. Color filter for horizontal electric field liquid crystal drive system. The color of the pixel portion coloring portion and the non-pixel portion coloring portion is k (k is an integer of 2 or more), and the color layer is a color of the pixel portion coloring portion adjacent to the opening in a predetermined side direction. Are the same color,
The pixel layer coloring portion having the same color as the non-pixel portion coloring portion of the m-th layer (m is an integer of 1 or more and k-1 or less) constituting the stacking column is formed by the first stacking column. Formed in the first stacked pillar forming region sandwiched between the openings,
The second laminated pillar is an opening in which the pixel part colored part of the same color as the non-pixel part colored part of the n-th layer (n is an integer from m + 1 to k) constituting the laminated pillar is formed. 2. The color filter for a horizontal electric field liquid crystal driving system according to claim 1, wherein the color filter is formed in a second laminated column forming region sandwiched between the electrodes. The pixel portion coloring portion and the non-pixel portion coloring portion have three colors, the non-pixel portion coloring portion has three layers, and the coloring layer is adjacent to a predetermined side direction of the opening. The color of the pixel portion coloring portion is the same color,
The first stacked pillar is sandwiched between openings in which the pixel portion coloring portion of the same color as the non-pixel portion coloring portion of the x (x is 1 or 2) layer constituting the stacking column is formed. Formed in the layered column formation region,
The second laminated pillar is an opening in which the pixel part colored part of the same color as the non-pixel part colored part of the y layer (y is an integer of x + 1 or more and 3 or less) constituting the laminated pillar is formed. 2. The color filter for a horizontal electric field liquid crystal driving system according to claim 1, wherein the color filter is formed in a second laminated column forming region sandwiched between the electrodes. A substrate, a light-shielding portion formed in a pattern on the substrate and provided with an opening, a pixel portion coloring portion of k (k is an integer of 2 or more) formed in the opening, and the light-shielding portion A colored layer having k color non-pixel part coloring parts of the same color as the pixel part coloring parts of the respective colors and having the same color of the pixel part coloring parts adjacent to each other in the predetermined side direction of the opening And a plurality of stacked columns formed on the light-shielding portion in the display area, the non-pixel portion colored portions of each color being stacked in two or more layers, and a transparent layer formed so as to cover the colored layer and the stacked columns A spacer height of a portion where the first stacked pillar is formed, the first stacked pillar and the second stacked pillar having the same number of stacked non-pixel portion colored portions. Is higher than the spacer height of the portion where the second stacked pillars are formed, A horizontal electric field liquid crystal driving method for the production method of a color filter for producing use color filters,
A m-colored colored portion forming layer is formed by applying a m-colored photosensitive resin composition on the substrate on which the light-shielding portion is formed (m is an integer of 1 to k-1). The m-color colored portion forming layer is subjected to pattern exposure and development to form an m-color pixel portion colored portion in an opening adjacent to a predetermined side direction, and the m-th color pixel portion coloring A first stacked pillar forming region sandwiched between the openings where the portions are formed, and a second sandwiched between the openings where the pixel portion coloring portions of the nth color (n is any integer from m + 1 to k) are formed. An m-th colored portion forming step of forming an m-th non-pixel portion colored portion in the stacked pillar forming region;
An n-th colored photosensitive resin composition is applied on a substrate on which the light-shielding portion, the m-th color pixel portion coloring portion, and the m-th non-pixel portion coloring portion are formed. Forming a colored portion forming layer, performing pattern exposure and development on the nth colored portion forming layer, forming an nth color pixel portion colored portion in an opening adjacent to a predetermined side direction; A color filter for a lateral electric field liquid crystal driving method, comprising: an n-th colored portion forming step of forming an n-th non-pixel colored portion in the first laminated column forming region and the second laminated column forming region. Production method.   5. The lateral electric field liquid crystal driving method according to claim 4, wherein the color of the pixel portion coloring portion and the non-pixel portion coloring portion is three colors, and the number of the non-pixel portion coloring portions is three. A method for producing a color filter.

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