JP2010271699A - Color filter for control of viewing angle and liquid crystal display using the same, and method of manufacturing the same color filter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal display that gives different information to a right side viewer and a left side viewer, to provide a color filter for control of a viewing angle used therefor, and to provide a method of manufacturing the same color filter. <P>SOLUTION: The color filter includes a second black matrix 6, a transparent resin layer 3, a first black matrix 5, a colored layer 7 consisting of a plural colors of colored patterns 7R, 7G, 7B on one surface of a transparent substrate 2. A light shielding pattern 5a constituting the first black matrix 5 and a light shielding pattern 6a constituting the second black matrix 6 which have the same spreadingly provided direction are disposed at nonfacing positions via the transparent resin layer 3 and the first black matrix 5 is made to be in a state of being embedded in the transparent resin layer 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a color filter and a liquid crystal display, and more particularly to a viewing angle control color filter used for a car navigation device, a liquid crystal display using the same, and a method of manufacturing a viewing angle control color filter.

  For example, when a car navigation device display is installed on the dashboard in an automobile so that it is located between the driver's seat and the passenger seat, the information required for the display is not necessarily the same for the driver and passengers in the passenger seat. is not. However, it is difficult to install two displays for the driver's seat and the passenger's seat because of limited space for in-vehicle use. For this reason, a display that can provide different information to a driver and a passenger in a passenger seat with a single display has been developed by forming a display by stacking two liquid crystal panels (Patent Document). 1).

Japanese Patent Laid-Open No. 2008-40027

However, in the display as described in Patent Document 1, since two liquid crystal panels are used, an increase in weight is unavoidable, and there is a problem in that the manufacturing cost increases. In addition, since the light emitted from the backup light source passes through the two liquid crystal panels, it is necessary to increase the light amount of the backup light source in order to obtain the lightness required for the image, which also increases the manufacturing cost. In addition, there is a problem that power consumption increases. Further, since the positions of the two liquid crystal panels are different in the depth direction of the display, there is a problem that a difference in image quality tends to occur between the left and right sides (driver seat side and passenger seat side). In addition, in the conventional display, since the structure becomes complicated with a multilayer structure, it is difficult to maintain the flatness of the laminated surface. For example, the thickness unevenness of the colored layers of the red, green, and blue colors of the color filter is difficult. However, when the protective film is laminated on the outermost surface, there is a problem that air bubbles enter due to surface irregularities and visibility is deteriorated.
The present invention has been made in view of the above circumstances, a liquid crystal display capable of giving different information to left and right viewers, a viewing angle control color filter used therefor, and a method for manufacturing the same. The purpose is to provide.

In order to achieve such an object, a first invention of a color filter for viewing angle control includes a transparent substrate, a second black matrix disposed on one surface of the transparent substrate, and the second black matrix. A transparent resin layer disposed on the transparent substrate so as to cover the surface, a first black matrix disposed on the surface of the transparent resin layer opposite to the transparent substrate, and a coloring pattern comprising a plurality of colored patterns And the first black matrix and the second black matrix have the same light-shielding pattern in the extending direction and are not opposed to each other through the transparent resin layer, The first black matrix is configured to be embedded in the transparent resin layer.
As another aspect of the first aspect of the present invention, a transparent oxygen barrier layer is interposed between the transparent resin layer and the colored layer.

  The second invention of the color filter for controlling the viewing angle includes a transparent substrate, a transparent resin layer disposed on one surface of the transparent substrate, and a second black matrix disposed on the transparent resin layer. A first black matrix disposed on the other surface of the transparent substrate, and a colored layer comprising a plurality of colored patterns, wherein the first black matrix and the second black matrix have the same extending direction. And a light-shielding pattern disposed at a position that does not oppose the transparent substrate and the transparent resin layer, and the second black matrix is embedded in the transparent resin layer It was.

  The third aspect of the color filter for controlling the viewing angle includes a transparent substrate, a transparent resin layer disposed on one surface of the transparent substrate via an adhesive layer, and the transparent substrate of the transparent resin layer. A second black matrix disposed on the side, a first black matrix disposed on the other surface of the transparent substrate, and a colored layer comprising a plurality of colored patterns, the first black matrix and the The second black matrix has the same extending direction and has a light shielding pattern disposed at a position not opposed to the transparent substrate, and the second black matrix is embedded in the transparent resin layer. The configuration is in a state.

  The first invention of the method for manufacturing a color filter for controlling the viewing angle is the method for manufacturing the color filter for controlling the viewing angle according to the first aspect of the invention, and is provided on one surface of the transparent substrate so as to extend in the same direction. Forming a second black matrix by providing a light-shielding pattern having at least a plurality of patterns, and forming a negative photosensitive resin layer on the transparent substrate so as to cover the second black matrix, and then Forming a first black matrix by providing a light shielding pattern having at least a plurality of patterns extending in the same direction as the light shielding pattern of the second black matrix on the photosensitive resin layer; and the photosensitive resin layer The first black matrix is embedded in the photosensitive resin layer by performing a heat treatment at a temperature equal to or higher than the glass transition temperature of the photosensitive resin. And a step of forming a colored layer by providing a colored pattern of a plurality of colors on the transparent resin layer, and forming the first black matrix, The light shielding pattern extending in the same direction constituting the first black matrix and the light shielding pattern extending in the same direction constituting the second black matrix are not opposed to each other through the photosensitive resin layer. 1 Black matrix was formed.

  As another aspect of the first invention of the method for producing a viewing angle control color filter, the viewing angle control color filter according to the first invention is a production method of an aspect having a transparent oxygen blocking layer, which is transparent. Forming a second black matrix by providing a light-shielding pattern having at least a plurality of patterns extending in the same direction on one surface of the substrate; and a negative on the transparent substrate so as to cover the second black matrix. Forming a photosensitive resin layer of a mold, forming a transparent oxygen blocking layer on the negative photosensitive resin layer, and then extending on the transparent oxygen blocking layer in the same direction as the light shielding pattern of the second black matrix. Forming a first black matrix by providing a light-shielding pattern having at least a plurality of patterns formed, and performing a heat treatment at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer. And embedding the first black matrix in the photosensitive resin layer, curing the photosensitive resin layer to form a transparent resin layer, and providing a plurality of color patterns on the transparent resin layer for coloring. A step of forming a layer, and in the step of forming the first black matrix, a light shielding pattern extending in the same direction constituting the first black matrix and a same direction constituting the second black matrix The first black matrix is formed so as not to face the light-shielding pattern extending to the surface through the photosensitive resin layer.

  Further, as another aspect of the first invention of the method for producing a viewing angle control color filter, the method for producing an aspect in which the viewing angle control color filter according to the first invention has a transparent oxygen blocking layer is provided. Forming a second black matrix by providing a light-shielding pattern having at least a plurality of patterns extending in the same direction on one surface of the transparent substrate; and on the transparent substrate so as to cover the second black matrix. A negative photosensitive resin layer is formed on the photosensitive resin layer, and a light shielding pattern having at least a plurality of patterns extending in the same direction as the light shielding pattern of the second black matrix is provided on the photosensitive resin layer. A step of forming a black matrix and a heat treatment at a temperature equal to or higher than a glass transition temperature of the photosensitive resin layer to A step of embedding in the photosensitive resin layer and curing the photosensitive resin layer to form a transparent resin layer, and forming a transparent oxygen blocking layer on the transparent resin layer; and a plurality of colored patterns on the transparent resin layer Providing a colored layer, and forming the first black matrix includes forming a light shielding pattern extending in the same direction constituting the first black matrix and the second black matrix. The first black matrix is formed so that the light-shielding pattern extending in the same direction does not face the photosensitive resin layer.

  The second aspect of the method for producing a viewing angle control color filter is the method for producing a viewing angle control color filter according to the second aspect of the invention, wherein a negative photosensitive resin is formed on one surface of the transparent substrate. Forming a second black matrix by providing a light shielding pattern having at least a plurality of patterns extending in the same direction on the photosensitive resin layer, and forming a glass of the photosensitive resin layer Performing a heat treatment at a temperature equal to or higher than the transition temperature to embed the second black matrix in the photosensitive resin layer and curing the photosensitive resin layer to form a transparent resin layer; and the other surface of the transparent substrate A process for forming a first black matrix by providing a light shielding pattern having at least a plurality of patterns extending in the same direction as the light shielding pattern of the second black matrix. And forming a colored layer by providing a colored pattern of a plurality of colors on the transparent substrate. In the step of forming the first black matrix, the first black matrix extends in the same direction. The first black matrix is formed such that the provided light shielding pattern and the light shielding pattern extending in the same direction constituting the second black matrix do not face each other with the transparent substrate and the transparent resin layer interposed therebetween. The configuration.

As another aspect of the second invention of the manufacturing method of the viewing angle control color filter, the manufacturing method of the viewing angle control color filter according to the second invention, after forming the photosensitive resin layer The transparent oxygen blocking layer is formed on the photosensitive resin layer, and then the second black matrix is formed on the transparent oxygen blocking layer.
Further, as another aspect of the second invention of the method for producing a viewing angle control color filter, the method for producing a viewing angle control color filter according to the second invention, wherein the photosensitive resin layer is cured. The transparent resin layer was formed, and then a transparent oxygen blocking layer was formed on the transparent resin layer.

  A third aspect of the method for producing a viewing angle control color filter is a method for producing a viewing angle control color filter according to the third aspect of the invention, wherein a negative photosensitive resin layer is formed on a support. Thereafter, a second black matrix is formed on the photosensitive resin layer by providing a light-shielding pattern having at least a plurality of patterns extending in the same direction, and then the glass transition temperature of the photosensitive resin layer or higher. The second black matrix is embedded in the photosensitive resin layer by performing a heat treatment at a temperature of, and the photosensitive resin layer is cured to form a transparent resin layer, and the transparent resin layer having the second black matrix is formed on the support. Forming a transfer sheet prepared so as to be peelable and a light-blocking pattern having at least a plurality of patterns extending in the same direction on one surface. A matrix is formed, and further, the transparent resin layer of the transfer sheet is pressure-bonded via an adhesive layer to the other surface of the transparent substrate on which a colored pattern of a plurality of colors is provided to form a colored layer, and then Peeling the support and transferring the transparent resin layer to a transparent substrate. In the transferring step, the light-shielding pattern extending in the same direction constituting the first black matrix and the second The light-shielding pattern extending in the same direction constituting the black matrix is configured to be aligned so that the extending direction is the same and does not face through the transparent substrate.

Further, the present invention provides a color filter in a liquid crystal display in which a color filter is disposed to face an electrode substrate through a liquid crystal, and each of the colored patterns constituting the color filter forms one picture element. The color filter for viewing angle control according to any one of claims 1 to 3, wherein each picture element is divided into left and right parts by a second black matrix, and a liquid crystal is provided for each right and left part of each picture element. The orientation was controlled.
As another aspect of the present invention, the color filter has a common transparent electrode disposed on the colored layer, and the electrode substrate has a plurality of portions corresponding to each of the two divided parts of each pixel of the color filter. A transparent pixel electrode is provided, and the liquid crystal orientation is controlled for each of the left and right parts of each picture element.

  In the color filter for controlling the viewing angle of the present invention, in the first black matrix and the second black matrix, the light shielding pattern extending in the same direction is disposed at a position where the light shielding pattern does not face through the transparent resin layer or the transparent substrate. Therefore, the viewing angle is controlled by the difference between the first black matrix and the second black matrix. That is, when attention is paid to the light transmitted through one colored pattern constituting the colored layer, the colored pattern in which the visible light is transmitted in one of the left and right directions (direction perpendicular to the extending direction of the light shielding pattern) is transmitted. The part and the part of the colored pattern through which light visible through the other side is transmitted are different in one colored pattern. In the liquid crystal display of the present invention, the color filter for viewing angle control of the present invention is used, and each pixel is divided into two parts to control the alignment of the liquid crystal. Can be given.

Furthermore, in the invention according to claim 1, since the first black matrix is embedded in the transparent resin layer, the thickness of the colored pattern constituting the colored layer formed in the transparent resin layer is uniform, and the liquid crystal Orientation accuracy is high, and high-definition image display is possible.
Further, in the invention according to claim 2, since the transparent oxygen barrier layer is interposed between the transparent resin layer and the colored layer, even if gas is generated from the colored layer, discoloration or deterioration of the transparent resin layer due to this gas. Is prevented.
In the invention according to claim 3, since the second black matrix is embedded in the transparent resin layer, another member or layer is laminated and laminated on the transparent resin layer which is the outermost surface on the viewing side. However, mixing of bubbles is suppressed, and deformation of members and layers is prevented.
In the invention according to claim 4, since the second black matrix is embedded in the transparent resin layer, the fixing to the transparent substrate through the adhesive layer is reliable and reliable, and the viewer side Even if another member or layer is laminated or laminated on the transparent resin layer that is the outermost surface, mixing of bubbles is suppressed and deformation of the member or layer is prevented.

  In the method for producing a color filter for controlling the viewing angle according to the present invention, the first black matrix or the second black matrix formed on the photosensitive resin layer is exposed to light by heat treatment at a temperature higher than the glass transition temperature. Since the photosensitive resin layer is cured to become a transparent resin layer at the same time as being embedded in the photosensitive resin layer, a curing process for forming the transparent resin layer on the transparent substrate or a transparent resin layer on the support is formed. The curing process is performed simultaneously by a heat treatment for embedding the black matrix in the photosensitive resin layer, the process is simple, and the formation of a transparent resin layer with a flat black matrix formation surface is possible. Is possible.

Further, in the invention according to claim 5, since the first black matrix can be embedded in the transparent resin layer, a colored pattern can be formed uniformly thereafter, the liquid crystal alignment accuracy is high, and high A color filter capable of displaying a fine image can be manufactured.
In the invention according to claim 6, since the transparent oxygen blocking layer is formed on the negative photosensitive resin layer, the transparent resin layer formed by curing the photosensitive resin layer is heated at a high temperature ( For example, even when heated to 200 ° C. or higher, the transparent resin layer is prevented from being oxidized and discolored by oxygen in the air.
Further, in the invention according to claim 7, since the transparent oxygen blocking layer is formed on the transparent resin layer formed by curing the photosensitive resin layer, it is heated to a high temperature (for example, 200 ° C. or more) in the subsequent colored layer formation. However, the transparent resin layer is prevented from being oxidized and discolored by oxygen in the air.
Further, in the invention according to claim 8, since the second black matrix can be embedded in the transparent resin layer, for the purpose of protection or function addition, the other is provided on the transparent resin layer which is the outermost surface on the viewing side. It is possible to manufacture a color filter capable of laminating or laminating the members and layers while suppressing the mixing of bubbles.
In the invention according to claim 9, since the transparent oxygen blocking layer is formed on the negative photosensitive resin layer, the transparent resin layer formed by curing the photosensitive resin layer is heated at a high temperature ( For example, even when heated to 200 ° C. or higher, the transparent resin layer is prevented from being oxidized and discolored by oxygen in the air.

In the invention according to claim 10, since the transparent oxygen blocking layer is formed on the transparent resin layer formed by curing the photosensitive resin layer, it is heated to a high temperature (for example, 200 ° C. or higher) in the subsequent colored layer formation. However, the transparent resin layer is prevented from being oxidized and discolored by oxygen in the air.
In the invention according to claim 11, since the transfer sheet can be produced independently of the first black matrix and the colored layer forming step on the transparent substrate, the production time can be shortened. The transfer sheet is in a state in which the second black matrix is embedded in the transparent resin layer, so that the transparent resin layer and the transparent substrate are securely fixed via the adhesive layer, and a highly reliable color filter is manufactured. it can. Furthermore, for the purpose of protecting or imparting a function, it is possible to manufacture a color filter capable of laminating or laminating other members or layers on the transparent resin layer, which is the outermost surface on the viewing side, while suppressing mixing of bubbles.
In addition, the liquid crystal display of the present invention uses the viewing angle control color filter of the present invention and divides each picture element into two parts to control the alignment of the liquid crystal. It is possible to give

It is a fragmentary sectional view which shows 1st Embodiment of the color filter for viewing angle control of this invention. It is the figure which showed the positional relationship of a 1st black matrix and a 2nd black matrix. It is a fragmentary sectional view showing other examples of a 1st embodiment of a color filter for viewing angle control of the present invention. It is a fragmentary sectional view showing other examples of a 1st embodiment of a color filter for viewing angle control of the present invention. It is a fragmentary sectional view which shows 2nd Embodiment of the color filter for viewing angle control of this invention. It is a fragmentary sectional view which shows 3rd Embodiment of the color filter for viewing angle control of this invention. It is process drawing which shows 1st Embodiment of the manufacturing method of the color filter for viewing angle control of this invention. It is process drawing which shows 1st Embodiment of the manufacturing method of the color filter for viewing angle control of this invention. It is process drawing which shows 2nd Embodiment of the manufacturing method of the color filter for viewing angle control of this invention. It is process drawing which shows 2nd Embodiment of the manufacturing method of the color filter for viewing angle control of this invention. It is process drawing which shows 3rd Embodiment of the manufacturing method of the color filter for viewing angle control of this invention. It is process drawing which shows 3rd Embodiment of the manufacturing method of the color filter for viewing angle control of this invention. It is a fragmentary sectional view showing one embodiment of a liquid crystal display of the present invention. FIG.

Embodiments of the present invention will be described below with reference to the drawings.
[Viewing angle control color filter]
(First embodiment)
FIG. 1 is a partial cross-sectional view showing a first embodiment of a color filter for viewing angle control of the present invention. In FIG. 1, a color filter 1 for viewing angle control according to the present invention covers a transparent substrate 2, a second black matrix 6 disposed on one surface 2a of the transparent substrate 2, and the second black matrix 6. The transparent resin layer 3 disposed on the transparent substrate 2, the first black matrix 5 disposed on the surface 3 a opposite to the transparent substrate 2 of the transparent resin layer 3, and a plurality of colored patterns (red A colored layer 7 comprising a colored pattern 7R, a green colored pattern 7G, and a blue colored pattern 7B). In the present invention, “transparent” means that the light transmittance using light having a wavelength of 400 nm is 95% or more, preferably 99% or more.

  One of the features of the color filter 1 for controlling the viewing angle according to the present invention is that the first black matrix 5 and the second black matrix 6 have the same extending direction and the transparent resin layer 3 is interposed therebetween. The light-shielding pattern is disposed at a position that does not oppose. This will be described with reference to FIG. 2 showing the positional relationship between the first black matrix 5 and the second black matrix 6 from the direction perpendicular to the layer surface of the transparent resin layer 3. As shown in FIG. 2, the first black matrix 5 (indicated by a solid line) includes a light shielding pattern 5a whose extending direction is an arrow a direction and a light shielding pattern 5b whose extending direction is an arrow b direction orthogonal thereto. It has a lattice shape. Further, the second black matrix 6 (indicated by a chain line) is provided with a plurality of light shielding patterns 6a having an extending direction in an arrow a direction at a predetermined interval. Therefore, the light shielding pattern 5a of the first black matrix 5 and the light shielding pattern 6a of the second black matrix 6 have the same extending direction (the direction of the arrow a) and do not face each other via the transparent resin layer 3 (do not overlap). ) Is a light shielding pattern disposed at a position. Further, when the positional relationship between the first black matrix 5 and the second black matrix 6 is viewed in a direction (arrow b direction) perpendicular to the extending direction (arrow a direction), the light shielding pattern constituting the first black matrix 5. The light shielding pattern 6a of the second black matrix is arranged at the center of the arrangement interval 5a, and is not overlapped with each other.

In the example shown in FIG. 2, the second black matrix 6 is composed of a plurality of light shielding patterns 6a extending in the direction of arrow a. However, the second black matrix 6 is extended in the direction of arrow b so as to be orthogonal to the light shielding pattern 6a. Alternatively, it may have a lattice shape provided with the light shielding pattern 6b (indicated by a two-dot chain line). In this case, the light shielding pattern 6 b is preferably disposed at a position overlapping the light shielding pattern 5 b constituting the first black matrix 5. In the illustrated example, the solid line indicating the light shielding pattern 5b and the two-dot chain line indicating the light shielding pattern 6b are intentionally shifted.
In the example shown in FIG. 2, the first black matrix 5 has a lattice shape. However, the first black matrix 5 may be composed of a plurality of light shielding patterns 5a extending in the arrow a direction. Also in this case, as described above, the second black matrix 6 may have a lattice shape including the light shielding pattern 6a extending in the arrow a direction and the light shielding pattern 6b extending in the arrow b direction.

  In this way, the light shielding pattern 5a of the first black matrix 5 and the light shielding pattern 6a of the second black matrix 6 are arranged in the same extending direction and not facing each other with the transparent resin layer 3 therebetween. The viewing angle is controlled. Here, when attention is paid to the light transmitted through one colored pattern 7R constituting the colored layer, as shown in FIG. 1, the portion 7Ra of the colored pattern 7R through which the light visible to the viewer A in the right direction is transmitted and The light can be divided into the portions 7Rb of the colored pattern 7R through which the light visible to the viewer B in the left direction is transmitted. That is, when the coloring pattern 7R is one picture element, the coloring pattern 7R that is one picture element is divided into a part 7Ra and a part 7Rb by the light shielding pattern 6a of the second black matrix 6. Therefore, the liquid crystal corresponding to the portion 7Ra of the colored pattern 7R and the liquid crystal corresponding to the portion 7Rb of the colored pattern 7R are independently controlled, so that the viewer A in the right direction and the viewer B in the left direction are different. Information can be given.

  The pitch of the light shielding patterns 5a of the first black matrix 5 and the pitch of the light shielding patterns 6a of the second black matrix 6 can be set in the range of 75 to 360 μm, for example. The line width of the light shielding pattern 5a of the first black matrix 5 can be set in the range of 5 to 20 μm, for example. The line width of the light shielding pattern 6a of the second black matrix 6 is the thickness of the transparent resin layer 3, the positions of the viewer A in the right direction and the viewer B in the left direction (control target viewing angle), and the light shielding pattern 5a. It can be set as appropriate in consideration of the pitch of the light shielding pattern 6a, and can be set in the range of 5 to 120 μm, for example.

  The viewing angle control color filter 1 of the present invention is characterized in that the first black matrix 5 is embedded in the transparent resin layer 3. Therefore, in the color filter 1 for controlling the viewing angle, the thickness of the colored patterns 7R, 7G, and 7B constituting the colored layer 7 formed on the transparent resin layer 3 is uniform, whereby the alignment accuracy of the liquid crystal is high and high definition. Image display is possible. Here, the state embedded in the transparent resin layer 3 means that the first black matrix 5 is completely embedded in the transparent resin layer 3, as shown in FIG. In this invention, a part of 1st black matrix 5 protrudes from the transparent resin layer 3, and the protrusion height is 1 micrometer or less. The protruding height of the first black matrix 5 means an average value of values measured using a contact type film thickness meter.

The viewing angle control color filter 1 of the present invention as described above may have a transparent oxygen blocking layer interposed between the transparent resin layer 3 and the colored layer 7. FIG. 3 is a cross-sectional view corresponding to FIG. 1 showing such an example. The viewing angle control color filter 1 ′ shown in FIG. 3 has a transparent oxygen blocking layer 8 on the transparent resin layer 3, and the first black matrix exists on the transparent oxygen blocking layer 8, and the transparent resin layer 3 and the transparent oxygen barrier layer 8 are embedded. FIG. 4 is a cross-sectional view corresponding to FIG. 1 showing another example having a transparent oxygen barrier layer. The viewing angle control color filter 1 ″ shown in FIG. 4 has a transparent oxygen blocking layer 8 on the transparent resin layer 3 so as to cover the first black matrix embedded in the transparent resin layer 3. In such viewing angle control color filters 1 ′ and 1 ″, even if gas is generated from the colored layer 7, discoloration or deterioration of the transparent resin layer 3 due to this gas is prevented by the transparent oxygen blocking layer 8. The Such a transparent oxygen barrier layer 8 is made of an inorganic material such as aluminum oxide (Al ₂ O ₃ ), silicon oxide (SiO _x ), silicon oxynitride (SiO _x N _y ), silicon nitride (SiN _x ), or the like. Alternatively, it may be made of an organic material such as an acrylic resin, an epoxy resin, a novolac resin, or the like. The thickness can be appropriately set in consideration of the material and the film forming method so that the oxygen permeability is 0.01 cc / m ² / day · atm or less. The oxygen permeability is measured under the conditions of a temperature of 23 ° C. and a humidity of 90% RH using an oxygen gas permeability measuring device (OX-TRAN 2/20 manufactured by MOCON).

(Second Embodiment)
FIG. 5 is a partial cross-sectional view showing a second embodiment of the color filter for viewing angle control of the present invention. In FIG. 5, the color filter 11 for controlling the viewing angle of the present invention is disposed on the transparent substrate 12, the transparent resin layer 13 disposed on one surface 12 b of the transparent substrate 12, and the transparent resin layer 13. The second black matrix 16, the first black matrix 15 disposed on the other surface 12a of the transparent substrate 12, and a plurality of color patterns (red color pattern 17R, green color pattern 17G, blue color pattern 17B). A colored layer 17.

One of the features of the color filter 11 for controlling the viewing angle according to the present invention is that the first black matrix 15 and the second black matrix 16 have the same extending direction, and the transparent substrate 12 and the transparent resin layer. 13 having a light-shielding pattern disposed at a position that does not oppose (not overlap) via 13. The relationship between the first black matrix 15 and the second black matrix 16 is the same as the relationship between the first black matrix 5 and the second black matrix 6 in the viewing angle control color filter 1 described above. Description of is omitted.
The viewing angle control color filter 11 of the present invention is characterized in that the second black matrix 16 is embedded in the transparent resin layer 13. Therefore, even if another member or layer such as a polarizing plate or a protective film is laminated or laminated on the transparent resin layer 13 which is the outermost surface on the viewing side, mixing of bubbles is suppressed and deformation of the member or layer is prevented. The

(Third embodiment)
FIG. 6 is a partial cross-sectional view showing a third embodiment of the color filter for viewing angle control of the present invention. In FIG. 6, the color filter 21 for controlling the viewing angle of the present invention includes a transparent substrate 22, a transparent resin layer 23 disposed on one surface 22 b of the transparent substrate 22 via an adhesive layer 28, and the transparent substrate 22. A second black matrix 26 disposed on the transparent substrate 22 side of the resin layer 23, a first black matrix 25 disposed on the other surface 22a of the transparent substrate 22, and a plurality of colored patterns (red colored pattern 27R). And a colored layer 27 made of a green coloring pattern 27G and a blue coloring pattern 27B).
One of the features of the color filter 21 for controlling the viewing angle according to the present invention is that the first black matrix 25 and the second black matrix 26 have the same extending direction and face each other through the transparent substrate 22. It has a light-shielding pattern arranged at a position where it does not overlap (does not overlap). The relationship between the first black matrix 25 and the second black matrix 26 is the same as the relationship between the first black matrix 5 and the second black matrix 6 in the viewing angle control color filter 1 described above. Description of is omitted.

The viewing angle control color filter 21 of the present invention is characterized in that the second black matrix 26 is embedded in the transparent resin layer 23. Therefore, the fixing to the transparent substrate 22 through the adhesive layer 28 is ensured and the reliability is high. In addition, since the surface of the transparent resin layer 23, which is the outermost surface on the viewing side, is flat, even if other members or layers such as a polarizing plate or a protective film are laminated and laminated, mixing of bubbles is suppressed, Layer deformation is prevented.
Here, each member which comprises the color filter for viewing angle control of this invention is demonstrated.
The transparent substrates 2, 12, and 22 are inflexible transparent rigid materials such as quartz glass, pyrex glass, and synthetic quartz plate, or transparent flexible materials having flexibility such as a transparent resin film and an optical resin plate. Can be used. The thickness of such a transparent substrate can be appropriately set within a range of 200 to 1500 μm, for example.
The transparent resin layers 3, 13, and 23 are obtained by curing a negative photosensitive resin material, and the thickness can be appropriately set within a range of 3 to 60 μm, for example.

The first black matrix 5 embedded in the transparent resin layer 3 and the second black matrices 16 and 26 embedded in the transparent resin layers 13 and 23 contain light-shielding particles such as carbon fine particles. A negative photosensitive resin material that has been cured is cured. On the other hand, the second black matrix 6 and the first black matrices 15 and 25 are formed by forming a metal material such as chromium by a film forming method such as a sputtering method or a vacuum evaporation method into a thin film having a thickness of about 1000 to 2000 mm. It may be. Further, it may be a resin black matrix containing light shielding particles such as carbon fine particles.
Further, the colored layers 7, 17, and 27 having a plurality of colored patterns can be formed by a pigment dispersion method using a photosensitive resin containing a desired colorant, and further, a printing method, an electrodeposition method, It can be formed by a known method such as a transfer method or an ink jet method.
The adhesive layer 28 can be formed using a conventionally known adhesive having light transmittance.
The above-described embodiment is an exemplification, and the viewing angle control color filter of the present invention is not limited thereto.

[Method of manufacturing color filter for viewing angle control]
(First embodiment)
7 and 8 are process diagrams for explaining the first embodiment of the manufacturing method of the viewing angle control color filter of the present invention, taking the viewing angle control color filter 1 shown in FIG. 1 as an example. Yes.
In the present invention, the second black matrix 6 is formed by providing a plurality of light shielding patterns extending in the same direction on one surface 2a of the transparent substrate 2 (FIG. 7A). As shown in FIG. 2 described above, the second black matrix 6 includes a plurality of light shielding patterns 6a having an extending direction in an arrow a direction at a predetermined interval. The second black matrix 6 is formed by a method of forming a metal thin film such as chromium having a thickness of about 1000 to 2000 mm by a sputtering method, a vacuum vapor deposition method, or the like, and patterning the thin film. Form a resin layer such as polyimide resin, acrylic resin, epoxy resin containing particles, patterning this resin layer, or form a photosensitive resin layer containing light-shielding particles such as carbon fine particles, Any method such as a method of patterning the photosensitive resin layer may be used.

Next, a negative photosensitive resin layer 3 ′ is formed on the transparent substrate 2 so as to cover the second black matrix 6 (FIG. 7B). Such a photosensitive resin layer 3 ′ can be formed, for example, by applying a negative photosensitive composition on the transparent substrate 2 and drying it. Further, in the present invention, for the purpose of preventing the transparent resin layer 3 formed in the subsequent process from being discolored by oxidation during the formation of the colored layer 7, the transparent oxygen layer 3 'formed on the photosensitive resin layer 3' is formed as described above. A blocking layer 8 (indicated by a two-dot chain line in FIG. 7B) may be formed. Such a transparent oxygen barrier layer 8 is required to have a flexibility capable of embedding the first black matrix 5 in the photosensitive resin layer 3 ′ in a later step, such as an acrylic resin or an epoxy resin. It can be formed using an organic material such as a novolac resin. Examples of the method for forming the transparent oxygen blocking layer 8 include a method of applying and drying the coating liquid containing the desired organic material, a CVD method, and the like. The thickness can be appropriately set in consideration of the material and the film forming method so that the oxygen permeability is 0.01 cc / m ² / day · atm or less. When the transparent oxygen blocking layer 8 is formed in this way, the manufactured viewing angle control color filter is a viewing angle control color filter 1 ′ as shown in FIG.

  Thereafter, a negative black matrix forming photosensitive composition is applied onto the photosensitive resin layer 3 'and dried to form a photosensitive coating film 5'. The photosensitive coating film 5 'is coated with a desired photomask. Proximity exposure is performed via M (FIG. 7C). Thereafter, the photosensitive black coating 5 'is developed to form the first black matrix 5 on the photosensitive resin layer 3' (FIG. 8A). The photosensitive composition for forming a black matrix is a negative photosensitive composition containing light shielding particles such as carbon fine particles. As shown in FIG. 2, the formed first black matrix 5 has a lattice shape including a light shielding pattern 5 a and a light shielding pattern 5 b, and the light shielding pattern 5 a includes the light shielding pattern 6 a of the second black matrix 6. It is extended in the same direction (arrow a direction shown in FIG. 2). Further, the first black matrix 5 is formed such that the light shielding pattern 5a does not oppose (overlap) the light shielding pattern 6a of the second black matrix 6 with the photosensitive resin layer 3 'interposed therebetween. As shown in FIG. 8A, the first black matrix 5 in this state exists as a convex portion on the photosensitive resin layer 3 ′.

Next, heat treatment is performed at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer 3 ′ to embed the first black matrix 5 in the photosensitive resin layer 3 ′, and the photosensitive resin layer 3 ′ is cured to form a transparent resin layer. 3 (FIG. 8B). The transparent resin layer 3 thus formed is flat because the first black matrix 5 is embedded, or even if the first black matrix 5 protrudes, the height is 1 μm or less. Good properties.
There are no particular restrictions on the conditions for the heat treatment, and the first black matrix 5 is embedded in the photosensitive resin layer 3 ', and then the curing of the first black matrix 5 and the photosensitive resin layer 3' proceeds. It can be. For example, a method of heating to a predetermined temperature exceeding the glass transition temperature of the photosensitive resin layer 3 ′ at a constant temperature increase rate, or heating to a predetermined temperature exceeding the glass transition temperature of the photosensitive resin layer 3 ′ at a constant temperature increase rate. A method of heating at this temperature for a predetermined time, and further heating to a predetermined temperature, a method of heating to a predetermined temperature exceeding the glass transition temperature of the photosensitive resin layer 3 'at a constant temperature increase rate, and a method of heating at this temperature for a predetermined time Etc. Moreover, it is preferable that the upper limit temperature in heat processing shall be about 50-200 degreeC higher than the glass transition temperature of the photosensitive resin layer 3 ', for example.

The confirmation that the photosensitive resin layer 3 'was cured to become the transparent resin layer 3 by the heat treatment was made by changing the hardness, changing the surface roughness, changing the transmittance (absorbance), infrared absorption analysis, thermal It can be performed by gravimetric analysis or the like.
Further, in the present invention, when the transparent oxygen blocking layer 8 described in FIG. 7B is not formed, the transparent resin layer 3 formed as described above is discolored by oxidation when the colored layer 7 is formed. In order to prevent this, a transparent oxygen blocking layer 8 (shown by a two-dot chain line in FIG. 8B) may be formed on the transparent resin layer 3. Such transparent oxygen barrier layer 8, it is possible to form an organic material as described above, for example, aluminum oxide (Al ₂ O _3), silicon oxide (SiO _x), silicon oxynitride (SiO _x N _y ), silicon nitride (SiN _x ), and the like can also be used. Examples of the method for forming the transparent oxygen blocking layer 8 using an inorganic material include a method of applying and drying the coating liquid containing the desired inorganic material, or a CVD method, a sputtering method, a vacuum deposition method, and the like. it can. The thickness of the transparent oxygen blocking layer 8 can be appropriately set in consideration of the material and the film forming method so that the oxygen transmission rate is 0.01 cc / m ² / day · atm or less. When the transparent oxygen blocking layer 8 is formed on the transparent resin layer 3 in this way, the manufactured viewing angle control color filter is the viewing angle control color filter 1 ″ as shown in FIG. Become.
Next, a colored layer 7 is formed by providing a plurality of colored patterns (red colored pattern 7R, green colored pattern 7G, blue colored pattern 7B) on the transparent resin layer 3 (FIG. 8C). Thereby, the viewing angle control color filter 1 is obtained. The colored layer 7 can be formed by a pigment dispersion method using a photosensitive resin containing a desired colorant, and can be formed by a known method such as a printing method, an electrodeposition method, or a transfer method. .

(Second Embodiment)
FIG. 9 and FIG. 10 are process diagrams for explaining a second embodiment of the method of manufacturing the viewing angle control color filter of the present invention, taking the viewing angle control color filter 11 shown in FIG. 5 as an example. Yes.
In the present invention, first, a negative photosensitive resin layer 13 ′ is formed on one surface 12 b of the transparent substrate 12 (FIG. 9A). Such a photosensitive resin layer 13 ′ can be formed in the same manner as the above-described photosensitive resin layer 3 ′, and can also be formed by laminating a negative photosensitive dry film on the transparent substrate 12. Can do. In the present invention, for the purpose of preventing the transparent resin layer 13 formed in the subsequent process from being discolored by oxidation when the colored layer 17 is formed, the transparent oxygen blocking layer is formed on the photosensitive resin layer 13 ′ formed as described above. 18 (indicated by a two-dot chain line in FIG. 9A) may be formed. Such a transparent oxygen barrier layer 18 is required to have a flexibility capable of embedding the second black matrix 16 in the photosensitive resin layer 13 'in a later step, and has been described in the above embodiment. Such an organic material and a formation method can be used. The thickness of the transparent oxygen blocking layer 18 can be appropriately set in consideration of the material and the film forming method so that the oxygen transmission rate is 0.01 cc / m ² / day · atm or less.

Next, a negative black matrix forming photosensitive composition is applied onto the photosensitive resin layer 13 'and dried to form a photosensitive coating film 16'. Proximity exposure is performed through the mask M (FIG. 9B). Thereafter, by developing the photosensitive coating film 16 ', the second black matrix 16 is formed on the photosensitive resin layer 13' (FIG. 9C). The photosensitive composition for forming a black matrix is a negative photosensitive composition containing light shielding particles such as carbon fine particles. The formed second black matrix 16 is composed of a light shielding pattern having at least a plurality of patterns extending in the same direction. The second black matrix 16 in this state exists as a convex portion on the photosensitive resin layer 13 'as shown in FIG. 9C.
Next, heat treatment is performed at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer 13 ′ to embed the second black matrix 16 in the photosensitive resin layer 13 ′, and the photosensitive resin layer 13 ′ is cured to form a transparent resin layer. 13 (FIG. 10A). Such heat treatment conditions can be the same as the heat treatment conditions at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer 3 ′ in the above-described embodiment.

Further, in the present invention, when the transparent oxygen blocking layer 18 described with reference to FIG. 9A is not formed, the transparent resin layer 13 formed as described above is discolored by oxidation when the colored layer 17 is formed. In order to prevent this, a transparent oxygen blocking layer 18 (indicated by a two-dot chain line in FIG. 10A) may be formed on the transparent resin layer 13. Such a transparent oxygen barrier layer 18 can be formed using an inorganic material or an organic material as described in the above embodiment, or a forming method. The thickness of the transparent oxygen blocking layer 18 can be appropriately set in consideration of the material and the film forming method so that the oxygen transmission rate is 0.01 cc / m ² / day · atm or less.

  Next, the first black matrix 15 is formed by providing a light shielding pattern having at least a plurality of patterns extending in the same direction as the light shielding pattern of the second black matrix 16 on the other surface 12a of the transparent substrate 12 (FIG. 10 (B)). The first black matrix 15 is formed by forming a metal thin film such as chromium having a thickness of about 1000 to 2000 mm by a sputtering method, a vacuum vapor deposition method, or the like, and patterning the thin film, or by shielding light such as carbon fine particles. A method of forming a resin layer such as polyimide resin, acrylic resin, or epoxy resin containing particles and patterning the resin layer, or a photosensitive resin layer containing light-shielding particles such as carbon fine particles or metal oxide And a method of patterning the photosensitive resin layer. The first black matrix 15 is configured such that the light shielding pattern constituting the first black matrix 15 does not face (does not overlap) the light shielding pattern extending in the same direction in the second black matrix 16 via the transparent substrate 12 and the transparent resin layer 13. Is formed.

  Next, a colored layer 17 is formed by providing a plurality of colored patterns (red colored pattern 17R, green colored pattern 17G, blue colored pattern 17B) on the surface 12a of the transparent substrate 12 (FIG. 10C). Thereby, the viewing angle control color filter 11 is obtained. The colored layer 17 can be formed in the same manner as the colored layer 7 described above.

(Third embodiment)
FIG. 11 and FIG. 12 are process diagrams for explaining a third embodiment of the method of manufacturing the viewing angle control color filter of the present invention, taking the viewing angle control color filter 21 shown in FIG. 6 as an example. Yes.
In the present invention, first, a negative photosensitive resin layer 23 ′ is formed on the support 32 (FIG. 11A). Such a photosensitive resin layer 23 'can be formed in the same manner as the above-described photosensitive resin layer 13'. There is no restriction | limiting in particular in the support body 32, For example, the resin film etc. which have the heat resistance with respect to the glass substrate, a metal substrate, and the heat processing mentioned later may be formed, and the release layer may be formed previously.

Next, a negative black matrix-forming photosensitive composition is applied onto the photosensitive resin layer 23 'and dried to form a photosensitive coating film 26'. Proximity exposure is performed through the mask M (FIG. 11B). Thereafter, the second black matrix 26 is formed on the photosensitive resin layer 23 'by developing the photosensitive coating film 26' (FIG. 9C). The photosensitive composition for forming a black matrix is a negative photosensitive composition containing light shielding particles such as carbon fine particles. The formed second black matrix 26 is formed of a light shielding pattern having at least a plurality of patterns extending in the same direction. As shown in FIG. 11C, the second black matrix 26 in this state exists as a convex portion on the photosensitive resin layer 23 '.
Next, heat treatment is performed at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer 23 ′ to embed the second black matrix 26 in the photosensitive resin layer 23 ′, and the photosensitive resin layer 23 ′ is cured to form a transparent resin layer. 23 (FIG. 11D). Thereby, the transfer sheet 31 provided with the transparent resin layer 23 having the second black matrix 26 on the support 32 so as to be peeled off is obtained. Such heat treatment conditions can be the same as the heat treatment conditions at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer 3 ′ in the above-described embodiment.

  Separately from the above steps, the first black matrix 25 is provided by providing a light shielding pattern having at least a plurality of patterns extending in the same direction as the light shielding pattern of the second black matrix 26 on one surface 22a of the transparent substrate 22. Form. Further, a colored layer 27 is formed by providing a plurality of colored patterns (red colored pattern 27R, green colored pattern 27G, blue colored pattern 27B) (FIG. 12A). The formation of the first black matrix 25 can be performed in the same manner as the formation of the first black matrix 15 of the above-described embodiment. Further, the colored layer 27 can be formed in the same manner as the colored layer 7 described above. Thus, in the present invention, the colored layer 27 is formed on the transparent substrate 22 instead of the transfer sheet 31 provided with the transparent resin layer 23 on the support 32 so as to be peelable. The transparent resin layer 23 does not change color due to oxidation during formation.

Next, the transparent resin layer 23 of the transfer sheet 31 is pressure-bonded to the other surface 22b of the transparent substrate 22 via the adhesive layer 28 (FIG. 12B), and then the support 32 is peeled off to remove the transparent resin. The layer 23 is transferred to the transparent substrate 22 (FIG. 12C). In this transfer process, the light shielding pattern constituting the first black matrix 25 has the same extending direction as the light shielding pattern constituting the second black matrix 26 and does not oppose via the transparent substrate 22 (does not overlap). ) As shown in FIG. Thereby, the viewing angle control color filter 21 is obtained.
The above-described embodiment is an exemplification, and the manufacturing method of the color filter for viewing angle control of the present invention is not limited to these.

[Liquid crystal display]
Next, the liquid crystal display of the present invention will be described.
In the liquid crystal display according to the present invention, a color filter is disposed so as to face the electrode substrate through a liquid crystal, and each color pattern of a plurality of colors constituting the color filter forms one picture element. It is the color filter for viewing angle control of the above-mentioned this invention. Each picture element is divided into two left and right parts by the second black matrix, and the liquid crystal orientation is controlled for each of the left and right parts of each picture element.
FIG. 13 is a schematic sectional view showing an embodiment of the liquid crystal display of the present invention. In FIG. 13, the liquid crystal display 31 has the viewing angle control color filter 1 and the electrode substrate 41 opposed to each other at a predetermined interval, the peripheral portion is sealed with a seal member (not shown), and the liquid crystal layer 50 in the gap portion. Is formed. Although not shown, polarizing plates are disposed outside the viewing angle control color filter 1 and the electrode substrate 41, respectively.

  The viewing angle control color filter 1 constituting the liquid crystal display 31 of the present invention is the aforementioned viewing angle control color filter 1 of the present invention. Then, as described in the description of the viewing angle control color filter 1 described above, one coloring pattern is one picture element, and one picture element is divided into left and right by the second black matrix 6. A protective layer 32, a common transparent electrode 33 for driving liquid crystal, and an alignment layer 34 are formed on the colored layer 7 of the viewing angle control color filter 1.

On the other hand, the electrode substrate 41 constituting the liquid crystal display 31 of the present invention includes a transparent pixel electrode 43 and a thin film transistor (TFT) 44 for driving liquid crystal on a transparent substrate 42, and an alignment layer 45 is provided so as to cover the transparent pixel electrode 43. Is formed. The transparent pixel electrode 43 is disposed so as to correspond to each of the two divided parts of each picture element of the viewing angle control color filter 1. On this electrode substrate 41, a gate line group (not shown) for opening and closing a thin film transistor (TFT) 44 and a signal line group (not shown) for supplying a video signal are formed on the left and right parts of each pixel. It arrange | positions so that orientation control may be performed. Further, a voltage supply line (not shown) to the common transparent electrode layer 33 on the viewing angle control color filter 1 side is provided. These lead wires are usually made of a metal such as aluminum formed in a lump in the manufacturing process of the thin film transistor (TFT) 44.
As the transparent substrate 42 that constitutes the electrode substrate 41, those described as the transparent substrate 2 for the viewing angle control color filter can be used.

The common transparent electrode 33 and the transparent pixel electrode 43 constituting the liquid crystal display 31 are formed by sputtering using indium tin oxide (ITO), zinc oxide (ZnO), tin oxide (SnO), etc., and alloys thereof. The film is formed by a general film forming method such as a vacuum evaporation method or a CVD method.
Furthermore, the alignment layers 34 and 45 constituting the liquid crystal display 31 can be formed of an organic compound such as polyimide, polyamide, polyurethane, and polyurea, and the thickness is about 0.01 to 1 μm. it can. Such alignment layers 34 and 45 are coated by various printing methods and known coating methods, and then fired and then subjected to alignment treatment (rubbing).

Such a liquid crystal display 31 of the present invention uses the viewing angle control color filter 1 of the present invention and divides each picture element into two parts to control the alignment of the liquid crystal. Can give different information.
The liquid crystal display of the present invention can also use the above-described viewing angle control color filters 11 and 21 of the present invention instead of the viewing angle control color filter 1.
The above-described embodiment is an exemplification, and the liquid crystal display of the present invention is not limited to this. For example, the driving method of the liquid crystal is not limited and may be any of TN method, IPS method, VA method, etc. Therefore, an aspect in which the common transparent electrode is not provided in the viewing angle control color filter, or for viewing angle control A mode in which the transparent pixel electrode is not provided on the substrate facing the color filter is also included.

  It can be used in various display fields that give different information by controlling the viewing angle.

1, 1 ', 1 ", 11, 21 ... Color filter for viewing angle control 2, 12, 22 ... Transparent substrate 3, 13, 23 ... Transparent resin layer 5, 15, 25 ... First black matrix 6, 16, 26 ... 2nd black matrix 5a, 5b, 6a, 6b ... Light-shielding pattern 7, 17, 27 ... Colored layer 7R, 7G, 7B, 17R, 17G, 17B, 27R, 27G, 27B ... Colored pattern 8, 18 ... Transparent oxygen blocking Layer 3 ', 13', 23 '... photosensitive resin layer 5', 16 ', 26' ... photosensitive coating film 31 ... transfer sheet 32 ... support

Claims (13)

  A transparent substrate, a second black matrix disposed on one surface of the transparent substrate, a transparent resin layer disposed on the transparent substrate so as to cover the second black matrix, and the transparent resin layer A first black matrix disposed on the surface opposite to the transparent substrate and a colored layer comprising a plurality of colored patterns, wherein the first black matrix and the second black matrix have an extending direction. A field of view characterized by having a light-shielding pattern that is the same and is disposed at a position that does not oppose the transparent resin layer, and the first black matrix is embedded in the transparent resin layer. Color filter for angle control.   The color filter for viewing angle control according to claim 1, wherein a transparent oxygen blocking layer is interposed between the transparent resin layer and the colored layer.   A transparent substrate; a transparent resin layer disposed on one surface of the transparent substrate; a second black matrix disposed on the transparent resin layer; and a first disposed on the other surface of the transparent substrate. A black matrix and a colored layer comprising a plurality of colored patterns, wherein the first black matrix and the second black matrix have the same extending direction, and the transparent substrate and the transparent resin layer are interposed therebetween. A viewing angle control color filter, wherein the second black matrix is embedded in the transparent resin layer.   A transparent substrate, a transparent resin layer disposed on one surface of the transparent substrate via an adhesive layer, a second black matrix disposed on the transparent substrate side of the transparent resin layer, and the transparent substrate A first black matrix disposed on the other surface of the first color matrix and a colored layer comprising a plurality of colored patterns, wherein the first black matrix and the second black matrix have the same extending direction; and A viewing angle control color filter having a light shielding pattern disposed at a position not opposed to the transparent substrate, wherein the second black matrix is embedded in the transparent resin layer. In the manufacturing method of the color filter for viewing angle control of Claim 1,
Forming a second black matrix by providing a light shielding pattern having at least a plurality of patterns extending in the same direction on one surface of the transparent substrate;
A negative photosensitive resin layer is formed on the transparent substrate so as to cover the second black matrix, and then is extended on the photosensitive resin layer in the same direction as the light shielding pattern of the second black matrix. Forming a first black matrix by providing a light shielding pattern having at least a plurality of patterns;
Performing a heat treatment at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer, embedding the first black matrix in the photosensitive resin layer, and curing the photosensitive resin layer to form a transparent resin layer;
Forming a colored layer by providing a colored pattern of a plurality of colors on the transparent resin layer, and
In the step of forming the first black matrix, the light shielding pattern extending in the same direction constituting the first black matrix and the light shielding pattern extending in the same direction constituting the second black matrix are A method of manufacturing a color filter for controlling a viewing angle, wherein the first black matrix is formed so as not to face each other through a photosensitive resin layer. In the manufacturing method of the color filter for viewing angle control of Claim 2,
Forming a second black matrix by providing a light shielding pattern having at least a plurality of patterns extending in the same direction on one surface of the transparent substrate;
A negative photosensitive resin layer is formed on a transparent substrate so as to cover the second black matrix, a transparent oxygen blocking layer is formed on the negative photosensitive resin layer, and then the transparent oxygen blocking layer is formed on the transparent oxygen blocking layer. Forming a first black matrix by providing a light shielding pattern having at least a plurality of patterns extending in the same direction as the light shielding pattern of the second black matrix;
Performing a heat treatment at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer, embedding the first black matrix in the photosensitive resin layer, and curing the photosensitive resin layer to form a transparent resin layer;
Forming a colored layer by providing a colored pattern of a plurality of colors on the transparent resin layer, and
In the step of forming the first black matrix, the light shielding pattern extending in the same direction constituting the first black matrix and the light shielding pattern extending in the same direction constituting the second black matrix are A method of manufacturing a color filter for controlling a viewing angle, wherein the first black matrix is formed so as not to face each other through a photosensitive resin layer. In the manufacturing method of the color filter for viewing angle control of Claim 2,
Forming a second black matrix by providing a light shielding pattern having at least a plurality of patterns extending in the same direction on one surface of the transparent substrate;
A negative photosensitive resin layer is formed on the transparent substrate so as to cover the second black matrix, and then is extended on the photosensitive resin layer in the same direction as the light shielding pattern of the second black matrix. Forming a first black matrix by providing a light shielding pattern having at least a plurality of patterns;
A heat treatment is performed at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer to embed the first black matrix in the photosensitive resin layer, and the photosensitive resin layer is cured to form a transparent resin layer. Forming a transparent oxygen barrier layer on the layer;
Forming a colored layer by providing a colored pattern of a plurality of colors on the transparent resin layer, and
In the step of forming the first black matrix, the light shielding pattern extending in the same direction constituting the first black matrix and the light shielding pattern extending in the same direction constituting the second black matrix are A method of manufacturing a color filter for controlling a viewing angle, wherein the first black matrix is formed so as not to face each other through a photosensitive resin layer. In the manufacturing method of the color filter for viewing angle control of Claim 3,
A negative photosensitive resin layer is formed on one surface of the transparent substrate, and then a second black matrix is provided on the photosensitive resin layer by providing a light shielding pattern having at least a plurality of patterns extending in the same direction. Forming a step;
Performing a heat treatment at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer, embedding the second black matrix in the photosensitive resin layer, and curing the photosensitive resin layer to form a transparent resin layer;
Forming a first black matrix on the other surface of the transparent substrate by providing a light shielding pattern having at least a plurality of patterns extending in the same direction as the light shielding pattern of the second black matrix;
Providing a colored layer by providing a colored pattern of a plurality of colors on the transparent substrate,
In the step of forming the first black matrix, the light shielding pattern extending in the same direction constituting the first black matrix and the light shielding pattern extending in the same direction constituting the second black matrix are A method for producing a color filter for controlling a viewing angle, wherein the first black matrix is formed so as not to face each other through a transparent substrate and the transparent resin layer.   9. The method according to claim 8, wherein after forming the photosensitive resin layer, a transparent oxygen barrier layer is formed on the photosensitive resin layer, and then the second black matrix is formed on the transparent oxygen barrier layer. The manufacturing method of the color filter for viewing angle control of description.   The method for producing a color filter for viewing angle control according to claim 8, wherein after the photosensitive resin layer is cured to form a transparent resin layer, a transparent oxygen blocking layer is formed on the transparent resin layer. In the manufacturing method of the color filter for viewing angle control of Claim 4,
A negative photosensitive resin layer is formed on the support, and then a second black matrix is formed on the photosensitive resin layer by providing a light shielding pattern having at least a plurality of patterns extending in the same direction. Then, a heat treatment is performed at a temperature equal to or higher than the glass transition temperature of the photosensitive resin layer, and the second black matrix is embedded in the photosensitive resin layer, and the photosensitive resin layer is cured to form a transparent resin layer. Producing a transfer sheet provided with a transparent resin layer having a second black matrix so as to be peelable on the support;
A transparent substrate in which a first black matrix is formed by providing a light shielding pattern having at least a plurality of patterns extending in the same direction on one surface, and further, a colored layer is formed by providing a plurality of colored patterns A step of pressure-bonding the transparent resin layer of the transfer sheet to the other surface via an adhesive layer, and then peeling the support to transfer the transparent resin layer to a transparent substrate.
In the transfer step, the light shielding pattern extending in the same direction constituting the first black matrix and the light shielding pattern extending in the same direction constituting the second black matrix have the same extending direction. And the manufacturing method of the color filter for viewing angle control characterized by aligning so that it may not oppose through the said transparent substrate. In a liquid crystal display in which a color filter is disposed to face an electrode substrate through a liquid crystal, and each of the colored patterns constituting the color filter forms one picture element.
The color filter is a color filter for viewing angle control according to any one of claims 1 to 4, wherein each picture element is divided into two parts by left and right parts by a second black matrix, and each picture element is divided into right and left parts. A liquid crystal display characterized in that liquid crystal orientation is controlled.   In the color filter, a common transparent electrode is disposed on a colored layer, and the electrode substrate includes a plurality of transparent pixel electrodes so as to correspond to the two divided portions of each pixel of the color filter. The liquid crystal display according to claim 12, wherein the liquid crystal orientation can be controlled for each of the left and right parts of the element.

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