JP5545262B2 - Light-emitting display device - Google Patents

Description

  The present invention relates to a light-emitting display device that can be manufactured in large quantities by an inexpensive and simple method and can display a three-dimensional image.

  Conventionally, as a flat panel display, a two-dimensional display has been mainstream, but in recent years, a flat panel display capable of three-dimensional display has begun to attract attention, and some of them are commercially available. . Further, in future flat panel displays, it is a natural tendency to be capable of three-dimensional display, and flat panel displays capable of three-dimensional display are being studied in a wide range of fields.

  In order to perform three-dimensional display on a flat panel display, it is usually necessary to display a right-eye video and a left-eye video separately to the viewer in some manner. As a method for separately displaying the right-eye video and the left-eye video, for example, a passive method is known. Such a passive three-dimensional display method will be described with reference to the drawings. FIG. 24 is a schematic diagram illustrating an example of a passive three-dimensional display. As shown in FIG. 24, in this method, first, the pixels constituting the flat panel display are divided into a plurality of types of pixels, that is, a right-eye video display pixel and a left-eye video display pixel. The pixel displays a right-eye image, and the other group of pixels displays a left-eye image. Also, using a linearly polarizing plate and a patterned retardation film on which a patterned retardation layer corresponding to the division pattern of the pixel is formed, a right-eye image and a left-eye image are orthogonal to each other. Convert to polarized light. In addition, the viewer wears circular polarizing glasses that employ circular polarizing lenses that are orthogonal to each other for the right-eye lens and the left-eye lens, so that the right-eye image passes only through the right-eye lens and the left-eye image is displayed. Pass only through the lens for the left eye. In this way, the passive system enables three-dimensional display by allowing the right-eye video to reach only the right eye and the left-eye video to reach only the left eye.

  Such a passive method has an advantage that three-dimensional display can be easily performed by using the pattern retardation film and the corresponding circular polarizing glasses.

  By the way, as described above, in the passive method, it is essential to use a pattern retardation film. However, such a pattern retardation film has not been widely researched and developed, and can be used as a standard technique. There is nothing that has been established. In this regard, Patent Document 1 discloses that as a pattern retardation film, a photo-alignment film having an alignment regulating force controlled in a pattern on a glass substrate and the photo-alignment film are formed. A pattern retardation plate having a retardation layer patterned so as to correspond to a film pattern is disclosed. Here, in the pattern of the photo-alignment film, regions in which the alignment regulating force is controlled are arranged in a pattern so that the alignment directions are orthogonal to each other. However, the pattern retardation plate disclosed in Patent Document 1 cannot be produced unless a special material such as a photo-alignment film is used, and it is essential to use a glass plate. Therefore, it is expensive and cannot be manufactured in large quantities with a large area, and its practicality is difficult.

  For this reason, practically used pattern retardation films are still in the research and development stage, and few have been known as general ones. As a result, a large amount of inexpensive and simple methods are available. There has been a problem that a light-emitting display device that can be manufactured and can display a three-dimensional image has not been obtained.

JP 2005-49865 A

  The present invention has been made in view of such circumstances, and provides a light-emitting display device that can be manufactured in large quantities by an inexpensive and simple method and can display a three-dimensional image. This is the main purpose.

  In order to solve the above problems, the present invention provides a light-emitting display having a pixel portion formed in a pattern, a polarizing plate disposed on the light-emitting display, a transparent film substrate disposed on the polarizing plate, and A patterned retardation plate having a circularly polarizing layer containing a rod-shaped compound having a refractive index anisotropy formed on the alignment layer, and an alignment layer formed on the transparent film substrate An angle formed by a polarization axis direction of the polarizing plate and a fast axis direction or a slow axis direction of the first circular polarization region and the second circular polarization region included in the circular polarization layer Is 45 °, and the pattern in which the pixel portion is formed in the light-emitting display and the pattern in which the first circular polarization region and the second circular polarization region are formed have a correspondence relationship. That features To provide a light emitting display device.

According to the present invention, the pattern in which the pixel portion is formed in the light emitting display and the pattern in which the first circular polarization region and the second circular polarization region are formed are interposed via the polarizing plate. Further, there is a correspondence relationship, and the angle formed by the polarization axis direction of the polarizing plate and the fast axis direction or the slow axis direction of the first circular polarization region and the second circular polarization region included in the circular polarization layer When the angle is 45 °, a display device capable of three-dimensional display (hereinafter sometimes referred to as “3D display device”) can be obtained.
In addition, the rod-shaped compound used in the present invention can be a general one as a rod-shaped compound used for a retardation film that has been widely used as a viewing angle compensation film of a liquid crystal display device. In addition, a pattern retardation plate can be obtained.
Furthermore, since the transparent film substrate is used, the patterned retardation plate can be mass-produced by a simple method, and has a high practicality because of its light weight.
For this reason, according to the present invention, it is possible to manufacture in large quantities by an inexpensive and simple method and to obtain a light emitting display device capable of displaying a three-dimensional image.

In the present invention, the pattern retardation plate is formed on the transparent film substrate, the alignment layer formed on the transparent film substrate, and the surface of the alignment layer, and has refractive index anisotropy. And a retardation layer containing a rod-shaped compound, and a fine concavo-convex shape is formed so that the alignment layer can align the rod-shaped compound in one direction. One alignment region and a second alignment region in which fine irregularities are formed so that the rod-like compound can be arranged in a direction orthogonal to the arrangement direction in the first alignment region are arranged in a pattern on the surface. And the fine concavo-convex shape formed on at least one surface of the first alignment region or the second alignment region is a striped line concavo-convex structure, and the first circularly polarized light Region and a second circularly polarizing region is preferably a retardation layer formed on the first alignment retardation layer formed on a region or the second alignment region.
Since the first alignment region and the second alignment region are formed in a pattern in the alignment layer, the retardation layer formed on the first alignment region in the retardation layer according to the pattern (hereinafter, The pattern may be referred to as a “first retardation region” and a retardation layer (hereinafter also referred to as a “second retardation region”) formed on the second alignment region. Will be placed. Here, in the first alignment region and the second alignment region, the directions in which the rod-shaped compounds are arranged are orthogonal to each other. Therefore, the first retardation region and the second retardation region have a refractive index. The direction in which the maximum current (the slow axis direction) is orthogonal to each other. Therefore, in the present invention, the first retardation region having a different slow axis direction in the retardation layer and the second retardation corresponding to the pattern in which the first alignment region and the second alignment region are formed. It can have a pattern retardation film in which regions are arranged in a pattern. Therefore, a three-dimensional image can be easily obtained by using such a first retardation region and a second retardation region as the first circular polarization region and the second circular polarization region.
In addition, in the present invention, for the purpose of imparting an alignment regulating force to the rod-shaped compound, fine irregularities are formed on the surfaces of the first alignment region and the second alignment region. When at least one of the fine unevenness formed on the surface of one alignment region or the second alignment region is a stripe-like line uneven structure, the first retardation region and the second retardation region in the retardation layer There is an advantage that the boundary can be clarified. This is because liquid crystal alignment defects that are likely to occur near the boundary between adjacent patterns can be suppressed, so that light leakage from the vicinity of the boundary can be suppressed and a decrease in contrast can be suppressed.

  In the present invention, it is preferable that each of the fine concavo-convex shapes formed on the surfaces of the first alignment region and the second alignment region has a stripe-like line concavo-convex structure. This is because the boundary between the first retardation region and the second retardation region in the retardation layer can be further clarified.

  In the present invention, the in-plane retardation value of the retardation layer preferably corresponds to λ / 4 minutes. In the present invention, since the linearly polarized light passing through the first retardation region and the second retardation region is circularly polarized light that is orthogonal to each other, the in-plane retardation value of the retardation layer is λ / 4 minutes. This is because more accurate three-dimensional display can be achieved.

In the present invention, the patterned phase difference plate is formed on the transparent film substrate, and a thick film region having a large thickness and a thin film region having a thickness smaller than the thick film region are formed in a pattern on the surface. And a retardation film formed on the surface of the alignment layer and containing a rod-shaped compound having a refractive index anisotropy, the thick film region and the thin film The surface is formed with fine irregularities so that the rod-shaped compounds can be arranged in the same direction, and the first circular polarization region and the second circular polarization region are formed on the thick film region. A retardation layer formed or a retardation layer formed on the thin film region is preferable.
The alignment layer is formed with the thick film region and the thin film region, and has a fine uneven shape formed on the surface of the thick film region, and a fine uneven shape formed on the surface of the thin film region. In which the rod-shaped compounds can be arranged in the same direction, the retardation layer formed on the thick film region (hereinafter sometimes referred to as “low retardation region”) and the thin film A retardation layer (hereinafter referred to as “high retardation region”) formed on the region differs from the retardation value (surface) by an amount corresponding to the difference in thickness between the thick film region and the thin film region. Inner retardation). Therefore, in the present invention, the thin film region and the thick film region are formed of a high retardation region having a large retardation value in the retardation layer and a low retardation region having a retardation value smaller than that of the high retardation region. It is formed in the same pattern as the pattern. Therefore, according to the present invention, it is possible to have a pattern retardation film in which a high retardation region and a low retardation region are arranged in a pattern in the retardation layer. Therefore, a three-dimensional image can be easily obtained by using such a high phase difference region and a low phase difference region as the first circular polarization region and the second circular polarization region.

  In the present invention, the difference between the in-plane retardation value of the retardation layer formed on the thick film region and the in-plane retardation value of the retardation layer formed on the thin film region is λ / 2 minutes. And the in-plane retardation value of the retardation layer formed on the thick film region corresponds to λ / 4 minutes, so that the above-mentioned level formed on the thick film region is The in-plane retardation value of the retardation layer corresponds to λ / 4 minutes, and the in-plane retardation value of the retardation layer formed on the thin film region preferably corresponds to λ / 4 + λ / 2 minutes. This is because the linearly polarized light passing through the low phase difference region and the high phase difference region becomes circularly polarized light that is orthogonal to each other, so that more accurate three-dimensional display can be achieved.

  In the present invention, it is preferable that at least one of the fine concavo-convex shapes formed on the surface of the thick film region or the thin film region is a stripe-like line concavo-convex structure, and further, the thick film region and the thin film The fine uneven shape formed on the surface of the region is preferably a stripe-like line uneven structure. This is because the boundary between the low retardation region and the high retardation region in the retardation layer can be made clear.

In the present invention, the pattern retardation plate is the transparent film substrate, the alignment layer formed on the transparent film substrate, and the rod-shaped compound formed on the alignment layer and having refractive index anisotropy. A retardation layer containing, and a pattern retardation film having a second retardation layer disposed on the pattern retardation film and having an in-plane retardation value corresponding to λ / 4 minutes, The pattern retardation plate is arranged so that the polarizing plate, the retardation layer and the second retardation layer are in this order, and the retardation layer corresponds to an in-plane retardation value of λ / 2. The first retardation region is arranged in a pattern, and the slow axis direction of the first retardation region and the slow axis direction of the second retardation layer are orthogonal or parallel to each other, The first circular polarization region is the first circular polarization region. It is preferable to include a retardation region and a second retardation layer on the first retardation region.
This is because the first circular polarization region includes the first retardation region and the second retardation layer on the first retardation region, so that a three-dimensional image can be easily obtained.

  In the present invention, the retardation layer contains the first retardation region and a rod-like compound having refractive index anisotropy, and the in-plane retardation value corresponds to λ / 2 minutes. And the orientation direction of the rod-shaped compound contained in the second retardation region is 45 ° to the orientation direction of the rod-like compound contained in the first retardation region. In addition, it is preferable that the first retardation region and the second retardation region are arranged in a pattern. As a result, the amount of light transmitted through the first phase difference region and the second phase difference region can be made comparable, and the boundary between the first phase difference region and the second phase difference region can be made inconspicuous. This is because a 3D display device excellent in display quality can be obtained.

  In the present invention, the pattern retardation plate may be a laminated pattern retardation film in which the second retardation layer is laminated on the retardation layer of the pattern retardation film. This is because it is easy to make the slow axis direction of the first retardation region and the slow axis direction of the second retardation layer orthogonal or parallel.

  In the present invention, it is preferable that the pattern in which the first circularly polarized region and the second circularly polarized region are formed is formed in a belt-like pattern parallel to each other. This is because it is easy to make a correspondence between the pattern in which the first phase difference region is formed and the pattern in which pixels are formed in a color filter or the like used in the display device.

  In the present invention, it is preferable that an antireflection layer and / or an antiglare layer is formed on the surface of the transparent film substrate opposite to the surface on which the alignment layer is formed. This is because the display quality can be improved.

  In the present invention, it is preferable that the alignment layer is made of a cured ultraviolet curable resin. Thereby, the orientation layer can be easily formed by a transfer method, and as a result, the patterned retardation film of the present invention can be made more productive.

  The light-emitting display device of the present invention can be manufactured in large quantities by an inexpensive and simple method, and has the effect of being able to display a three-dimensional image.

It is a schematic sectional drawing which shows an example of the light emission type display apparatus of this invention. It is the schematic which shows an example of the pattern phase difference film used for this invention. It is the schematic which shows the other example of the pattern phase difference film used for this invention. It is a schematic sectional drawing which shows the other example of the pattern phase difference film used for this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is a schematic sectional drawing which shows the other example of the pattern phase difference film used for this invention. FIG. 10 is a sectional view taken along line AA in FIG. 9. It is a schematic plan view which shows the other example of the pattern phase difference film used for this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is BB sectional drawing of FIG. It is a schematic plan view which shows the other example of the pattern phase difference film used for this invention. It is the schematic explaining the light emission type display apparatus of this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is explanatory drawing explaining the pattern phase difference film used for this invention. It is CC sectional view taken on the line of FIG. It is a schematic plan view which shows the other example of the pattern phase difference film used for this invention. It is explanatory drawing explaining the polarizing plate used for this invention. It is a schematic sectional drawing which shows the other example of the light emission type display apparatus of this invention. It is the schematic which shows the example of the liquid crystal display device which can display a three-dimensional image | video with a passive system.

The present invention relates to a light-emitting display device.
The light-emitting display device of the present invention includes a light-emitting display in which a pixel portion is formed in a pattern, a polarizing plate disposed on the light-emitting display, a transparent film substrate, A light emitting display comprising: an alignment layer formed on a transparent film substrate; and a pattern retardation plate having a circularly polarizing layer containing a rod-shaped compound having a refractive index anisotropy formed on the alignment layer. In the apparatus, an angle formed by a polarization axis direction of the polarizing plate and a fast axis direction or a slow axis direction of the first circular polarization region and the second circular polarization region included in the circular polarization layer is 45. Further, the pattern in which the pixel portion is formed in the light-emitting display and the pattern in which the first circular polarization region and the second circular polarization region are formed have a correspondence relationship. Also features It is.

  Such a light emitting display device of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing an example of a light-emitting display device of the present invention. As illustrated in FIG. 1, the light emitting display device 50 of the present invention includes a light emitting display 40 in which pixel portions 31 a are formed in a pattern, a polarizing plate 30 disposed on the light emitting display 40, and the polarization A transparent film substrate 11, an alignment layer 12 formed on the transparent film substrate 11, and a rod-shaped compound having refractive index anisotropy formed on the alignment layer 12 are disposed on the plate 30. A pattern retardation plate 20 having a circularly polarizing layer 13, wherein the circularly polarizing layer 13 has a first circularly polarizing region 13A and a second circularly polarizing region 13B, and the polarizing plate The angle formed by the polarization axis direction of 30 and the fast axis direction or slow axis direction of the first circular polarization region 13A and the second circular polarization region 13B included in the pattern retardation plate 20 is 45 °, Furthermore, the above light emission In the display 40, the pattern in which the pixel portion 31a is formed and the pattern in which the first circular polarization region 13A and the second circular polarization region 13B are formed have a correspondence relationship. It is.

Here, as illustrated in FIGS. 2A and 2B, as the pattern retardation plate 20, a transparent film substrate 1, an alignment layer 2 formed on the transparent film substrate 1, A retardation film 3 having a retardation layer 3 formed on the alignment layer 2, and the alignment layer 2 is fine so that the rod-shaped compound can be arranged in one direction. The first alignment region 2A in which the concavo-convex shape is formed and the second alignment in which the fine concavo-convex shape is formed so that the rod-like compound can be arranged in a direction orthogonal to the arrangement direction in the first alignment region 2A. The region 2B may be arranged in a pattern on the surface, and the fine unevenness formed on the surface of the first alignment region 2A may be a striped line uneven structure. In this example, as a result, as illustrated in FIG. 2B, in the patterned phase difference film of the present invention, the first retardation region 3A and the second position in which the slow axis directions are orthogonal to each other in the retardation layer 3 The phase difference region 3B is formed in the same pattern as the pattern in which the first alignment region 2A and the second alignment region 2B are formed.
In this example, the circular polarization layer is the retardation layer 3, and the first circular polarization region and the second circular polarization region are formed on the first alignment region 2A. The retardation layer 3B is formed on the layer 3A or the second alignment region 2B.

  Note that FIG. 2 shows an example in which only the fine concavo-convex shape formed in the first alignment region is a striped line-like concavo-convex structure, but the present invention is not limited to such an embodiment. For example, only the fine concavo-convex shape formed in the second alignment region may be a striped line concavo-convex structure, or the fine concavo-convex shape formed in the first alignment region and the second alignment region is a stripe shape. Line uneven shape may be sufficient.

Moreover, as illustrated in FIGS. 3A and 3B, as the pattern phase difference plate 20, the transparent film substrate 1, the alignment layer 2 formed on the transparent film substrate 1, and the above And a retardation layer 3 formed on the alignment layer 2. The alignment layer 2 has a thick film region 2C having a large thickness on the surface and the thick film region 2C. Also, the thin film region 2D having a small thickness is formed in a pattern, whereby the retardation layer 3C formed on the thick film region 2C and the retardation layer 3D formed on the thin film region 2D have different thicknesses. What can be used can be used. In this example, fine irregularities are formed on the surfaces of the thick film region 2C and the thin film region 2D so that the rod-like compounds can be arranged in the same direction. Further, as illustrated in FIG. 3B, the retardation layer 3 includes a low retardation region 3C formed on the thick film region 2C and a high retardation region 3D formed on the thin film region 2D. The thick film region 2C and the thin film region 2D are present in the same pattern as the pattern formed.
In this example, the circular polarization layer is the retardation layer 3, and the first circular polarization region and the second circular polarization region are formed on the thick film region 2C. The phase difference layer 3D is formed on the layer 3C or the thin film region 2D.

Furthermore, as illustrated in FIG. 4, the pattern retardation plate 20 is formed on the transparent film substrate 1, the alignment layer 2 formed on the transparent film substrate 1, and the alignment layer 2. A retardation layer 3 containing a rod-like compound having a refractive index anisotropy, and a pattern retardation film 10 having the above-mentioned pattern retardation film 10, and having an in-plane retardation value corresponding to λ / 4 minutes The retardation layer 3 has a first retardation region 3E having an in-plane retardation value corresponding to λ / 2, and is arranged in a pattern. The slow axis direction of the first retardation region 3E and the slow axis direction of the second retardation layer 4 may be orthogonal or parallel.
In this example, the circular polarization layer includes the first retardation region 3E and the second retardation layer 4 in the retardation layer 3, and the first circular polarization region is the first retardation region. A first retardation region 3E and a second retardation layer 4E on the first retardation region 3E, wherein the second circular polarization region is a second position on a region other than the first retardation region 3E. The phase difference layer 4F is included.

According to the present invention, the pattern in which the pixel portion is formed in the light emitting display and the pattern in which the first circular polarization region and the second circular polarization region are formed are interposed via the polarizing plate. Further, there is a correspondence relationship, and the angle formed by the polarization axis direction of the polarizing plate and the fast axis direction or the slow axis direction of the first circular polarization region and the second circular polarization region included in the circular polarization layer When the angle is 45 °, a display device capable of three-dimensional display (hereinafter sometimes referred to as “3D display device”) can be obtained.
In addition, the rod-shaped compound used in the present invention can be a general one as a rod-shaped compound used for a retardation film that has been widely used as a viewing angle compensation film of a liquid crystal display device. A pattern retardation film can be obtained.
Furthermore, the pattern retardation film of the present invention can be mass-produced by a simple method because the transparent film substrate is used, and has a high practicality because of its light weight. Become.
For this reason, according to the present invention, a 3D display device can be easily manufactured and can be manufactured in large quantities by an inexpensive and simple method.

The light-emitting display device of the present invention has at least a light-emitting display, a polarizing plate, and a pattern phase difference plate, and may have other arbitrary configurations such as a color filter as necessary. It is.
Hereafter, each structure used for this invention is demonstrated in order.

1. Pattern Retardation Plate The pattern retardation plate used in the present invention is a transparent film substrate, an alignment layer formed on the transparent film substrate, and a rod having a refractive index anisotropy formed on the alignment layer. A circularly polarizing layer containing a compound, and a polarization axis direction of the polarizing plate, and a fast axis or a slow axis of the first circularly polarizing region and the second circularly polarizing region included in the circularly polarizing layer. The angle formed by the phase axis direction is 45 °.

  Here, an angle formed by the polarization axis direction of the polarizing plate and the fast axis direction or the slow axis direction of the first circular polarization region and the second circular polarization region included in the circular polarization layer is 45 °. “Any” is not limited as long as it can display a three-dimensional image with a desired accuracy. Specifically, it means that the angle is within a range of 45 ° ± 3 °. In the present invention, it is preferably within a range of 45 ° ± 2 °, particularly preferably 45 ° ± 1 °. This is because highly accurate three-dimensional display can be achieved when the angle is within the above range.

  Such a pattern retardation plate is not particularly limited as long as it can display a three-dimensional image. For example, it is formed on the transparent film substrate and the transparent film substrate. And a retardation film containing a rod-shaped compound having a refractive index anisotropy formed on the surface of the alignment layer, the alignment layer comprising: A first alignment region in which fine irregularities are formed so that the rod-like compound can be arranged in one direction, and the rod-like compound can be arranged in a direction orthogonal to the arrangement direction in the first alignment region. And the second alignment region on which the fine irregularities are formed are arranged in a pattern on the surface, and at least one surface of the first alignment region or the second alignment region The formed fine concavo-convex shape is a striped line-like concavo-convex structure, and the first circularly polarized region and the second circularly polarized region are formed on the first alignment region or the second retardation layer. An embodiment (first embodiment) which is a retardation layer formed on an alignment region, the pattern retardation plate is formed on the transparent film substrate, and a thick film region having a large thickness on the surface and the thick film region A pattern retardation comprising: an alignment layer in which a thin film region having a small thickness is formed in a pattern; and a retardation layer formed on the surface of the alignment layer and containing a rod-shaped compound having refractive index anisotropy The thick film region and the thin film region are formed with fine irregularities on the surface so that the rod-shaped compound can be arranged in the same direction, and the first circular polarization region and the first 2 A mode (second mode) in which the polarizing region is a phase difference layer formed on the thick film region or a phase difference layer formed on the thin film region, and the pattern phase difference plate is the transparent film substrate A retardation film comprising: an alignment layer formed on the transparent film substrate; and a retardation layer formed on the alignment layer and containing a rod-like compound having refractive index anisotropy; and It is arranged on a pattern retardation film and has a second retardation layer having an in-plane retardation value corresponding to λ / 4. The pattern retardation plate comprises the polarizing plate, the retardation layer and the second retardation layer. The retardation layers are arranged in this order, and the retardation layer has a first retardation region corresponding to an in-plane retardation value of λ / 2, arranged in a pattern. , Slow axis direction of the first phase difference region And the slow axis direction of the second retardation layer are orthogonal or parallel to each other, and the first circular polarization region is a second retardation on the first retardation region and the first retardation region. It can be set as three embodiments of the aspect (3rd aspect) which contains a layer. Hereinafter, the 1st aspect-the 3rd aspect of the pattern phase difference plate used for this invention are divided into each aspect, and are demonstrated.

(1) 1st aspect First, the 1st aspect of the pattern phase difference plate used for this invention is demonstrated. The pattern phase difference plate of this embodiment comprises the above-mentioned transparent film substrate, an alignment layer formed on the transparent film substrate, and a rod-shaped compound having a refractive index anisotropy formed on the surface of the alignment layer. A first retardation in which a fine concavo-convex shape is formed so that the alignment layer can align the rod-shaped compound in one direction. A region and a second alignment region in which fine irregularities are formed are arranged in a pattern on the surface so that the rod-like compound can be arranged in a direction orthogonal to the arrangement direction in the first alignment region. In addition, the fine unevenness formed on the surface of at least one of the first alignment region or the second alignment region is a striped line uneven structure, and the first circular polarization region and 2 circularly polarizing region is characterized in that a retardation layer formed on the first alignment retardation layer formed on a region or the second alignment region.

  As such a pattern retardation plate of this embodiment, that is, a pattern retardation film, FIG. 2 described above can be exemplified.

In this aspect, since the first alignment region and the second alignment region are formed in a pattern in the alignment layer, the phase layer is formed on the first alignment region in the retardation layer according to the pattern. The retardation layer and the retardation layer formed on the second alignment region are arranged in a pattern. Here, in the first alignment region and the second alignment region, the directions in which the rod-shaped compounds are arranged are orthogonal to each other. Therefore, the first retardation region and the second retardation region have a refractive index. The direction in which the maximum current (the slow axis direction) is orthogonal to each other. For this reason, in this aspect, the first retardation region having a different slow axis direction in the retardation layer and the second retardation corresponding to the pattern in which the first orientation region and the second orientation region are formed. It can have a pattern retardation film in which regions are arranged in a pattern. Therefore, a three-dimensional image can be easily obtained by using such a first retardation region and a second retardation region as the first circular polarization region and the second circular polarization region.
In addition to this, in this embodiment, for the purpose of imparting an alignment regulating force to the rod-shaped compound, fine irregularities are formed on the surfaces of the first alignment region and the second alignment region. When at least one of the fine unevenness formed on the surface of one alignment region or the second alignment region is a stripe-like line uneven structure, the first retardation region and the second retardation region in the retardation layer There is an advantage that the boundary can be clarified. Thereby, since the alignment defect of the liquid crystal which tends to occur in the vicinity of the boundary between adjacent patterns can be suppressed, light leakage from the vicinity of the boundary can be suppressed, and the decrease in contrast can be suppressed.

The pattern retardation plate of this embodiment, that is, the pattern retardation film has at least a transparent film substrate, an alignment layer, and a retardation layer, and may have other configurations as necessary. .
Hereinafter, each structure of such a pattern phase difference film is demonstrated in detail.

(A) Orientation layer First, the orientation layer used for this aspect is demonstrated. The alignment layer used in this embodiment is formed on a transparent film substrate, which will be described later, and has a function of arranging rod-shaped compounds contained in the retardation layer in one direction. The alignment layer used in this embodiment has the first alignment region and the second alignment region formed in a pattern on the surface, so that the slow axis directions are orthogonal to each other in the retardation layer according to the pattern. The first phase difference region and the second phase difference region that are related to each other are arranged in a pattern. In addition to this, the alignment layer used in this embodiment is provided with the surface of the first alignment region and the second alignment region for the purpose of imparting alignment regulating force to the rod-shaped compound contained in the retardation layer described later. A fine concavo-convex shape is formed, and at least one of the fine concavo-convex shapes formed on the surface of the first alignment region or the second alignment region is a stripe-shaped line concavo-convex structure, the phase difference There is an advantage that the boundary between the first retardation region and the second retardation region in the layer can be clarified. Accordingly, liquid crystal alignment defects that are likely to occur near the boundary between adjacent patterns can be suppressed, so that light leakage from the vicinity of the boundary can be suppressed, and as a result, a decrease in contrast when used in a display can be suppressed. Can do.

(I) First alignment region and second alignment region Each of the first alignment region and the second alignment region formed in the alignment layer in this embodiment has a function of arranging the rod-shaped compounds contained in the retardation layer in one direction. The regions in which the rod-shaped compounds are arranged are orthogonal to each other. In this embodiment, the first alignment region and the second alignment region are formed in a pattern, and a fine uneven shape for arranging rod-shaped compounds is formed on the surface.

  The pattern in which the first alignment region and the second alignment region are formed in the alignment layer in this aspect is the pattern in which the first circular polarization region and the second circular polarization region are formed in the pixel portion. As long as the desired three-dimensional image can be displayed, it can be determined as appropriate according to the application of the present invention, and is particularly limited. Is not to be done. Examples of such a pattern include a belt-like pattern, a mosaic pattern, and a staggered pattern. In particular, in this embodiment, the first alignment region and the second alignment region are formed in a strip-like pattern parallel to each other, that is, the first circular polarization region and the second circular polarization layer included in the circular polarization layer. It is preferable that the circularly polarized regions are formed in a belt-like pattern parallel to each other. Since the first circular polarization region and the second circular polarization region can be easily formed into strip-like patterns parallel to each other, the pattern in which the pixel portion is formed in the light-emitting display, and the first circle This is because it becomes easy to make a correspondence relationship between the pattern in which the polarization region and the second circular polarization region are formed via the polarizing plate.

  FIGS. 5A and 5B are explanatory views showing an example in which the first alignment region and the second alignment region are formed in a strip-like pattern parallel to each other. Here, FIG. 5A is a schematic plan view, and FIG. 5B is a cross-sectional view taken along line X-X ′ in FIG. As shown in FIGS. 5A and 5B, in the alignment layer 2, the first alignment region 2A and the second alignment region 2B are preferably formed in a strip-like pattern parallel to each other. Here, W1 and W2 in FIGS. 5A and 5B indicate the band widths of the first alignment region and the second alignment region, respectively.

  When the first alignment region and the second alignment region are formed in a belt-like pattern, the pixel portion is formed in a pattern in which the first circular polarization region and the second circular polarization region are formed. The widths of the first alignment region and the second alignment region may be the same as long as they can correspond to the pattern and can display a desired three-dimensional image. Or it may be different. However, in this embodiment, the width of the first alignment region and the width of the second alignment region are preferably the same. The pattern in which the first circular polarization region and the second circular polarization region are formed can be easily associated with the pattern in which the pixel portion is formed, and as a result, it can be easily manufactured. This is because it becomes possible to make things. For the purpose of improving the color purity and contrast of the light-emitting display device, a color filter may be disposed between the light-emitting display and the pattern retardation film of this embodiment. It is preferable that the pattern in which the region and the second alignment region are formed correspond to the pattern in which the pixel portion is formed in the color filter.

  As specific widths of the first alignment region and the second alignment region, a pattern in which the first circular polarization region and the second circular polarization region are formed is a pattern in which the pixel portion is formed. There is no particular limitation as long as it can be in a correspondence relationship and can display a desired three-dimensional image, and the width in which the pixel portion is formed in the light emitting display. It is determined appropriately so as to correspond to. As described above, the widths of the first alignment region and the second alignment region are not particularly limited, but are usually preferably in the range of 50 μm to 1000 μm, and more preferably in the range of 100 μm to 600 μm. preferable.

  Further, in the present aspect, when the first alignment region and the second alignment region are formed in the band-shaped pattern, a black line that absorbs light is provided between the first alignment region and the second alignment region. It may be provided. In this case, the width of the black line is not particularly limited, but usually it is preferably in the range of 10 μm to 30 μm.

  Furthermore, in this embodiment, when the first alignment region and the second alignment region are formed in the band-shaped pattern, the direction in which the band-shaped pattern is formed is not particularly limited. For example, when the pattern retardation film of the present embodiment is formed by cutting into a predetermined size from one formed in a long shape, the belt-like pattern has a longitudinal direction of the belt in the longitudinal direction of the pattern retardation film May be parallel to each other, may be orthogonal, or may be obliquely intersecting. Especially in this aspect, it is preferable that the strip | belt-shaped longitudinal direction is a parallel direction with the elongate direction of a pattern phase difference film in the said strip | belt-shaped pattern. By forming a strip-shaped pattern in such a direction, for example, using a long transparent film substrate wound up in a roll shape, the roll-shaped transparent substrate film is conveyed while being unwound. On the other hand, it is easy to form the band-shaped pattern.

(Ii) Fine uneven shape Next, the fine uneven shape formed on the surfaces of the first alignment region and the second alignment region will be described. The pattern retardation film of this embodiment has a configuration in which a retardation layer described later is laminated on the alignment layer, and fine irregularities formed on the surfaces of the first alignment region and the second alignment region. The shape is formed in order to arrange the rod-shaped compounds contained in the retardation layer in a certain direction. In this embodiment, the fine unevenness formed on the surface of at least one of the first alignment region or the second alignment region is a striped line uneven structure.

  Here, the stripe-like line-shaped uneven structure means an aspect in which convex portions formed in a wall shape are formed in a stripe shape at regular intervals, for example, when the surface is rubbed Uneven shapes such as minute scratches that are formed are not included in this.

  In this aspect, as an aspect in which the fine unevenness formed on at least one surface of the first alignment region or the second alignment region is a striped line uneven structure, the first alignment region or the second alignment region Only the fine concavo-convex shape formed on the surface may be a stripe-shaped line concavo-convex structure, or the fine concavo-convex shapes formed on the surfaces of the first alignment region and the second alignment region are both stripe-shaped lines. A concavo-convex structure may be used. In particular, in this embodiment, it is preferable that both the fine concavo-convex shapes formed on the surfaces of the first alignment region and the second alignment region are stripe-like line-like concavo-convex structures. Since the stripe-shaped line-shaped uneven structure has a strong alignment regulating force on the rod-like compound, the fine uneven shapes formed on the surfaces of the first and second alignment regions are both stripe-shaped line-shaped uneven structures. This is because the boundary between the first retardation region and the second retardation region in the retardation layer can be further clarified.

When a striped line-shaped uneven structure is formed, the height, width, and period of the line-shaped uneven structure are not particularly limited as long as the rod-shaped compound can be arranged. In particular, in this embodiment, the width of the striped line-shaped uneven structure is preferably in the range of 1 nm to 100,000 nm, more preferably in the range of 10 nm to 10,000 nm, and in the range of 100 nm to 1000 nm. Is more preferable.
The height of the striped line-shaped uneven structure is preferably in the range of 1 nm to 1000 nm, more preferably in the range of 10 nm to 100 nm, and still more preferably in the range of 20 nm to 50 nm. .
Furthermore, the period of the striped line-shaped uneven structure is preferably in the range of 2 nm to 200000 nm, more preferably in the range of 20 nm to 20000 nm, and still more preferably in the range of 200 nm to 2000 nm. .

  Here, the height, width, and period of the linear concavo-convex shape mean distances indicated by l, m, and n in FIG.

  On the other hand, when only the fine concavo-convex shape formed on one surface of the first alignment region or the second alignment region is a striped line concavo-convex structure, the fine concavo-convex shape formed on the other surface is a rod-shaped compound. If it can arrange | position in a fixed direction, it will not specifically limit. However, since the rod-shaped compound has a property of being arranged in parallel to the longitudinal direction of the line-shaped uneven structure on the surface on which the line-shaped uneven structure is formed, the fine uneven shape in this aspect is composed of a line-shaped uneven structure. It is preferable that As such a line-shaped uneven structure, for example, a mode in which a minute line-shaped uneven structure is formed in a discontinuous state at random in a substantially constant direction can be exemplified.

  Here, the form in which the minute line-shaped uneven structure is formed in a discontinuous state at random in a substantially constant direction is, for example, a minute scratch formed when the surface is rubbed. This means that the straight line-shaped uneven structure is formed in a discontinuous state in a substantially constant direction.

  In this aspect, when the line-shaped uneven structure is formed in the first alignment region and the second alignment region, the direction of the line-shaped uneven structure formed in the first alignment region and the line-shaped unevenness formed in the second alignment region The structure directions are orthogonal to each other. This is because the first alignment region and the second alignment region in this embodiment have a function of arranging rod-shaped compounds in directions orthogonal to each other, and the line-shaped uneven structure is rod-shaped in a direction parallel to its longitudinal direction. This is because it has a function of arranging compounds.

(Iii) Constituent material As a constituent material used for forming the alignment layer in this embodiment, the first alignment region and the second alignment region having a predetermined fine unevenness formed on the surface are formed in a desired pattern. There is no particular limitation as long as it is possible. Examples of such a constituent material include an ultraviolet curable resin, a thermosetting resin, and an electron beam curable resin. In this embodiment, any of these constituent materials can be suitably used, but it is preferable to use an ultraviolet curable resin. By using an ultraviolet curable resin, the orientation layer used in this embodiment can be easily formed by a transfer method, and as a result, the patterned retardation film of this embodiment can be made more productive. Because. When an ultraviolet curable resin is used as a constituent material, the alignment layer in this embodiment is made of a cured ultraviolet curable resin.

  Specific examples of the ultraviolet curable resin used in this embodiment include, for example, polymerizable oligomers and monomers having an acryloyl group such as urethane acrylate, epoxy acrylate, polyester acrylate, polyether acrylate, melamine acrylate, acrylic acid, acrylamide, Acrylonitrile, styrene, etc. Polymerizable oligomers with polymerizable vinyl groups, monomers, etc., or those with additives such as sensitizers added to those added to photopolymerization initiators as needed Can be mentioned.

(B) Retardation layer Next, the retardation layer in this aspect is demonstrated. This embodiment is a circularly polarizing layer including the first circularly polarizing region and the second circularly polarizing region in this embodiment, and is formed on the alignment layer described above, and contains a rod-like compound having refractive index anisotropy. The pattern retardation film is imparted with retardation. Further, in this aspect, the alignment layer having the above-described characteristics is formed, so that the retardation layer in this aspect has the first retardation region and the second retardation region, that is, the first circle. The polarization region and the second circular polarization region are formed in the same pattern as the pattern in which the first alignment region and the second alignment region are formed.

  The retardation layer used in the present embodiment expresses retardation by containing a rod-shaped compound described later, and the degree of the retardation is the type of the rod-shaped compound and the thickness of the retardation layer. It is determined depending on Therefore, the thickness of the retardation layer used in the present embodiment is not particularly limited as long as it is within a range in which a predetermined retardation can be achieved, and is appropriately determined according to the application of the present invention. Moreover, in the retardation layer in this aspect, the thickness of the first retardation region and the second retardation region is substantially the same. In particular, the thickness of the retardation layer in this embodiment is preferably in a range where the in-plane retardation of the retardation layer corresponds to λ / 4 minutes. As a result, in the patterned retardation film of this aspect, the linearly polarized light passing through the first retardation region and the second retardation region becomes circularly polarized light that is orthogonal to each other. This is because it can be displayed.

  In this embodiment, when the thickness of the retardation layer is set to a distance within a range in which the in-plane retardation of the retardation layer corresponds to λ / 4 minutes, the specific distance is described later. It is appropriately determined depending on the type of rod-shaped compound. However, the distance is usually in the range of 0.5 μm to 2 μm as long as it is a rod-shaped compound generally used in this embodiment, but is not limited thereto.

  Next, the rod-shaped compound contained in the retardation layer will be described. The rod-shaped compound used in this embodiment has refractive index anisotropy. The rod-shaped compound contained in the retardation layer in the present embodiment is not particularly limited as long as it can impart desired retardation to the retardation layer in the present embodiment by arranging regularly. Especially, it is preferable that the rod-shaped compound used for this aspect is a liquid crystalline material which shows liquid crystallinity. This is because the liquid crystalline material has a large refractive index anisotropy, so that it becomes easy to impart desired retardation to the patterned retardation film of this embodiment.

  As said liquid crystalline material used for this aspect, the material which shows liquid crystal phases, such as a nematic phase and a smectic phase, can be mentioned, for example. In the present embodiment, any material exhibiting any of these liquid crystal phases can be suitably used, but it is particularly preferable to use a liquid crystalline material exhibiting a nematic phase. This is because a liquid crystalline material exhibiting a nematic phase is easily arranged regularly as compared with liquid crystalline materials exhibiting other liquid crystal phases.

  In this embodiment, it is preferable to use a material having spacers at both ends of the mesogen as the liquid crystalline material exhibiting the nematic phase. This is because the liquid crystalline material having spacers at both ends of the mesogen is excellent in flexibility, and by using such a liquid crystalline material, the pattern retardation film of this embodiment can be made excellent in transparency.

  Furthermore, as the rod-shaped compound used in this embodiment, those having a polymerizable functional group in the molecule are preferably used, and among them, those having a polymerizable functional group capable of three-dimensional crosslinking are more preferably used. Since the rod-shaped compound has a polymerizable functional group, the rod-shaped compound can be polymerized and fixed, so that a retardation layer having excellent alignment stability and hardly causing a change in retardation with time is obtained. Because you can. In addition, when the rod-shaped compound which has a polymerizable functional group is used, the phase difference layer in this aspect contains the rod-shaped compound bridge | crosslinked by the polymerizable functional group.

  The “three-dimensional cross-linking” means that liquid crystal molecules are polymerized three-dimensionally to form a network (network) structure.

  Examples of the polymerizable functional group include polymerizable functional groups that are polymerized by the action of ionizing radiation such as ultraviolet rays and electron beams, or heat. Representative examples of these polymerizable functional groups include radically polymerizable functional groups or cationic polymerizable functional groups. Further, representative examples of radically polymerizable functional groups include functional groups having at least one addition-polymerizable ethylenically unsaturated double bond, and specific examples include vinyl groups having or not having substituents, An acrylate group (generic name including an acryloyl group, a methacryloyl group, an acryloyloxy group, and a methacryloyloxy group) and the like can be given. Moreover, an epoxy group etc. are mentioned as a specific example of the said cation polymerizable functional group. In addition, examples of the polymerizable functional group include an isocyanate group and an unsaturated triple bond. Among these, from the viewpoint of the process, a functional group having an ethylenically unsaturated double bond is preferably used.

Furthermore, the rod-like compound in this embodiment is a liquid crystalline material exhibiting liquid crystallinity and particularly preferably has a polymerizable functional group at the terminal. By using such a liquid crystalline material, for example, they can be polymerized three-dimensionally to form a network structure, so that they have alignment stability and excellent optical properties. This is because the retardation layer can be formed.
In this embodiment, even when a liquid crystalline material having a polymerizable functional group at one end is used, the alignment can be stabilized by crosslinking with other molecules.

  Specific examples of the rod-shaped compound used in this embodiment include compounds represented by the following formulas (1) to (17).

  In this embodiment, the rod-shaped compound may be used alone or in combination of two or more. For example, when the rod-shaped compound is used by mixing a liquid crystalline material having one or more polymerizable functional groups at both ends and a liquid crystalline material having one or more polymerizable functional groups at one end, The polymerization density (crosslink density) and the optical characteristics can be arbitrarily adjusted by adjusting the ratio, which is preferable. Further, from the viewpoint of ensuring reliability, a liquid crystalline material having one or more polymerizable functional groups at both ends is preferable, but from the viewpoint of liquid crystal alignment, it is preferable that there is one polymerizable functional group at both ends. .

(C) Transparent film base material Next, the transparent film base material used for this aspect is demonstrated. The transparent film substrate used in this embodiment is not particularly limited as long as it is made of a resin material and has a predetermined transparency. Especially, it is preferable that the transparent film base material used for this aspect is a thing with low retardation. More specifically, the transparent film substrate used in this embodiment preferably has an in-plane retardation value (Re value) in the range of 0 nm to 10 nm.
It is more preferably within the range of 0 nm to 5 nm, and further preferably within the range of 0 nm to 3 nm. This is because if the in-plane retardation value of the transparent substrate is larger than the above range, the display quality of the obtained 3D display device may be deteriorated.

  The transparent film substrate used in this embodiment preferably has a transmittance in the visible light region of 80% or more, and more preferably 90% or more. Here, the transmittance | permeability of a transparent film base material can be measured by JISK7361-1 (the test method of the total light transmittance of a plastic transparent material).

  Examples of the transparent film substrate used in this embodiment include acetyl cellulose resins such as triacetyl cellulose, polyester resins such as polyethylene terephthalate and polyethylene naphthalate, olefin resins such as polyethylene and polymethylpentene, and acrylic resins. Resin, polyurethane resin, polyethersulfone, polycarbonate, polysulfone, polyether, polyetherketone, (meth) acrylonitrile, cycloolefin polymer, cycloolefin copolymer, etc. Since the in-plane retardation of the film substrate is likely to approach zero, resins such as acetyl cellulose resins, cycloolefin polymers, cycloolefin copolymers, and acrylic resins are preferred.

  About the thickness of a transparent film base material, although it can determine suitably according to the use of this invention, the material which comprises a transparent film base material, etc., it is not specifically limited, Usually, 20 micrometers- It is preferably in the range of 188 μm, and more preferably in the range of 30 μm to 90 μm.

  In addition, when the said orientation layer consists of ultraviolet curable resin, you may form the primer layer for improving the adhesiveness of a transparent film base material and ultraviolet curable resin on a transparent film base material. This primer layer may have any adhesiveness to both the transparent film substrate and the ultraviolet curable resin, is transparent in terms of visible optics, and can pass ultraviolet rays. For example, vinyl chloride / vinyl acetate copolymer System and urethane type can be used.

(D) Pattern retardation film (i) Other configurations The pattern retardation film of this embodiment has at least the transparent film substrate, the alignment layer, and the retardation layer. It may have. Other configurations used in this aspect are not particularly limited as long as a desired three-dimensional image can be displayed, and those having a desired function according to the application of the present invention are appropriately used. It can be selected and used. Examples of such other configurations include, for example, an antireflection layer or an antiglare layer formed on the surface of the transparent film substrate opposite to the surface on which the alignment layer is formed. By forming such an antireflection layer, there is an advantage that a light emitting display device with good display quality can be obtained. Note that only one or both of the antireflection layer and the antiglare layer may be used.

  FIG. 7 is a schematic cross-sectional view showing an example of the case where an antireflection layer is used in the pattern retardation film of this embodiment. As illustrated in FIG. 7, in the pattern retardation film 10 of this embodiment, that is, the pattern retardation plate 20, an antiglare layer is formed on the surface of the transparent film substrate 1 opposite to the surface on which the alignment layer 2 is formed. Alternatively, the antireflection layer 14 may be formed.

  The antiglare layer is a layer having a function of reducing screen reflection caused by external light from the sun, a fluorescent lamp, or the like entering and reflecting on the display screen of the display device. On the other hand, the antireflection layer improves the image contrast by suppressing the regular reflectance of the surface, and as a result, has a function of improving the visibility of the image. The antiglare layer and antireflection layer used in this embodiment are not particularly limited as long as they have a desired antiglare function or antireflection function, and are used for display devices for the purpose of improving display image quality. Generally known ones can be used. Examples of the antiglare layer include a resin layer in which fine particles are dispersed, and examples of the antireflection layer include a layer having a configuration in which a plurality of layers having different refractive indexes are stacked. . If an antireflection layer is provided on the outermost surface of the antiglare layer, the visibility of the image in the bright room can be further improved.

(Ii) Pattern Retardation Film The pattern retardation film of this aspect has the first retardation region and the second retardation layer in the retardation layer so as to correspond to the pattern in which the first alignment region and the second alignment region are formed. The phase difference region has a configuration formed in a pattern, that is, the first circular polarization region and the second circular polarization region have a configuration formed in a pattern. Here, the degree of phase difference of the first phase difference region and the second phase difference region is not particularly limited as long as a desired three-dimensional image can be displayed. It can be determined appropriately depending on the situation. Accordingly, the specific numerical range of the in-plane retardation indicated by the first retardation region and the second retardation region is not particularly limited, and may be appropriately adjusted according to the application of the present invention. In particular, in this embodiment, it is preferable that the in-plane retardation value of the retardation layer corresponds to λ / 4 minutes. More specifically, the in-plane retardation value of the retardation layer is preferably in the range of 100 nm to 160 nm, more preferably in the range of 110 nm to 150 nm, and in the range of 120 nm to 140 nm. More preferably. In the retardation layer in this aspect, the in-plane retardation values indicated by the first retardation region and the second retardation region are substantially the same except that the direction of the slow axis is different.

Here, the in-plane retardation value is an index indicating the degree of birefringence in the in-plane direction of the refractive index anisotropic body, and the refractive index in the slow axis direction having the largest refractive index in the in-plane direction is represented by Nx. When the refractive index in the fast axis direction orthogonal to the slow axis direction is Ny and the thickness in the direction perpendicular to the in-plane direction of the refractive index anisotropic body is d,
Re [nm] = (Nx−Ny) × d [nm]
It is a value represented by. The in-plane retardation value (Re value) can be measured by, for example, KOBRA-WR manufactured by Oji Scientific Instruments Co., Ltd. by the parallel Nicol rotation method, and the in-plane retardation value of a minute region is AXOMETRICS (USA). Measurements can also be made using a Mueller matrix with an AxoScan made by the manufacturer. In the present specification, unless otherwise stated, the Re value means a value at a wavelength of 589 nm.

  Further, the pattern in which the first retardation region and the second retardation region are formed in the retardation layer in this aspect, that is, the pattern in which the first circular polarization region and the second circular polarization region are formed, The pattern is not particularly limited as long as it has a correspondence relationship with the pattern in which the pixel portion is formed, and can be determined as appropriate according to the application of the present invention. The pattern in which the first phase difference region and the second phase difference region are formed is the same as the pattern in which the first alignment region and the second alignment region are formed in the alignment layer. By selecting the pattern that forms the two orientation regions, the pattern in which the first retardation region and the second retardation region are simultaneously formed is determined.

  In addition, in the pattern retardation film of this aspect, the pattern formed of the first retardation region and the second retardation region is formed in the retardation layer. For example, a sample is put in a polarizing plate crossed Nicol, It can be evaluated by confirming that the bright line and the dark line are reversed when the sample is rotated. At this time, when the pattern composed of the first phase difference region and the second phase difference region is fine, the pattern may be observed with a polarizing microscope. Further, the direction (angle) of the slow axis in each pattern may be measured with the above-described AxoScan.

(Iii) Orientation part and phase difference part The pattern phase difference plate of this aspect, ie, the pattern phase difference film of this aspect, includes a transparent film base material, an orientation layer, and a phase difference layer as described above. The layer has a different thickness corresponding to the pattern of each color of the light emitting display device, that is, includes an orientation portion having a different thickness corresponding to the pattern of each color of the light emitting display device. It is preferable that a retardation portion having a different thickness corresponding to the orientation portion is included.
By having retardation layers with different thicknesses corresponding to each color displayed on the light emitting display device, it is necessary to exhibit appropriate retardation corresponding to each color, that is, corresponding to the wavelength of each color. Because it can. Specifically, the phase difference portion formed in each of the orientation portions and corresponding to a color having a long wavelength may be a reverse dispersion type having a higher in-plane retardation value than the phase difference portion corresponding to a color having a short wavelength. The phase difference suitable for each color can be exhibited. For this reason, it is because it can be set as the 3D display apparatus which was excellent in display quality.
Further, since the retardation layers having different thicknesses are formed on the alignment layers having different thicknesses corresponding to the respective colors displayed on the light emitting display device, the present invention can be applied regardless of the type of the light emitting display device. Because it can be. In addition, since alignment layers having different thicknesses can be easily formed by using a mold or the like, a coating solution for forming a retardation layer containing the rod-shaped compound is applied onto such an alignment layer, and the alignment is performed. It is because it can be easily manufactured and can be mass-produced by forming the retardation layer by aligning along the alignment regulating force of the layer.

Here, the pattern phase difference film of this aspect containing such an orientation part and a phase difference part is demonstrated with reference to figures. 8 is a cross-sectional view taken along line AA of FIG. 9, and FIG. 9 is a schematic plan view showing an example of the pattern retardation film of this embodiment. As illustrated in FIGS. 8 and 9, in the pattern retardation film 10 (20) of this embodiment, the alignment layer 2 has a first alignment region 2 </ b> A in which rod-shaped compounds having refractive index anisotropy are arranged in a certain direction. And a second alignment region 2B arranged in a direction different from the first alignment region 2A.
Further, in the alignment portions (2a′-1, 2a′-2, 2a′-3) included in the first alignment region 2A, fine uneven shapes for arranging rod-shaped compounds in a certain direction are formed, and the second alignment region 2B (2b′-1, 2b′-2, 2b′-3) has a fine uneven shape in which rod-shaped compounds are arranged in a direction different from that of the first alignment region 2A. The retardation layer 3 has a first retardation region 3A and a second retardation region 3B containing rod-shaped compounds arranged in the arrangement direction of the rod-shaped compounds of the first alignment region 2A and the second alignment region 2B. Furthermore, the first retardation region 3A has a retardation portion (3a ′) having a different thickness corresponding to the orientation portions (2a′-1, 2a′-2, 2a′-3) included in the first orientation region 2A. -1, 3a′-2, 3a′-3) and the second retardation region 3B is included in the second alignment region 2B (2b′-1, 2b′-2, 2b′-3) The phase difference part (3b'-1, 3b'-2, 3b'-3) from which thickness differs corresponding to is included.
In this example, rod-like compounds are arranged in the first retardation region and the second retardation region in directions of 45 ° and 135 ° with respect to the longitudinal direction of the pattern retardation film of this embodiment, respectively. These slow axes are orthogonal to each other. Further, the in-plane retardation value of the phase difference portion included in both phase difference regions is in a range corresponding to λ / 4 of each corresponding color.
Moreover, the arrow in FIG. 9 is a direction which arranges the rod-shaped compound in each orientation area | region.

Moreover, FIG. 10 is explanatory drawing which shows an example of the light emission type display apparatus using the pattern phase difference film of this aspect. As illustrated in FIG. 10, a light emitting display device is disposed on a light emitting display 40 having pixels of three colors of red (R), green (G), and blue (B), and the light emitting display 40. The polarizing plate 30 and the patterned retardation film 10 (20) disposed on the polarizing plate 30, and the alignment portion (2a′-1) included in the patterned retardation film 10 (20). 2a'-2, 2a'-3, 2b'-1, 2b'-2, 2b'-3), and the orientation parts (2a'-1, 2a'-2, 2a'-3, 2b'-) The phase difference portions (3a′-1, 3a′-2, 3a′-3, 3b′-1, 3b′-2, 3b ′) having different thicknesses corresponding to 1, 2b′-2, 2b′-3) -3) corresponds to the three color pixels (R, G, B) of the light emitting display 40.
Note that the reference numerals in FIG. 10 indicate the same members as those in FIG. 1, and a description thereof will be omitted here.

a. Orientation part The orientation part in this aspect is contained in the said orientation layer, has a fine uneven | corrugated shape on the surface, and thickness differs according to the pattern of each color of a light emission type display apparatus.

The thickness of the orientation part in this embodiment differs depending on the pattern of each color of the light emitting display device.
Here, in the pattern retardation film of this aspect, the pattern in which the first circular polarization region and the second circular polarization region are formed and the pattern in which the pixel portion is formed have a correspondence relationship. However, the “pattern in which the pixel portion is formed” here means a pattern for displaying the right-eye video or the left-eye video. On the other hand, the pattern of each color of the light-emitting display device to which the alignment unit corresponds corresponds to the arrangement of pixels displaying a specific color, and the alignment unit corresponding to the pattern of each color of the light-emitting display device of the present invention. Means that a pattern of a specific color overlaps in a plan view. That is, the alignment layer has a first alignment region and a second alignment region corresponding to the right eye image and the left eye image, respectively, and has a thickness corresponding to each color of the light emitting display device in both regions. It has a different orientation part.
In addition, the thickness of the alignment portion in the present embodiment is different corresponding to each color pattern of the light emitting display device. If the adjacent alignment portions correspond to different color patterns, they are adjacent. The orientation portion has a different thickness.
Specifically, when used in a light emitting display device that displays red, green, and blue, an alignment portion corresponding to a pattern displaying red, an alignment portion corresponding to a pattern displaying green, and blue are displayed. The thicknesses of the alignment portions corresponding to the patterns are different from each other.

The thickness is not particularly limited as long as the thickness is different depending on the pattern of each color of the light-emitting display device, but in particular, the alignment portion corresponding to a long wavelength color has a wavelength. It is preferable that the thickness is smaller than the orientation portion corresponding to the short color. By setting it as such a thickness, the in-plane retardation value is higher than the phase difference portion corresponding to the color having a short wavelength, the phase difference portion corresponding to the color having a long wavelength formed on each of the orientation portions. This is because it is easy to use the inverse dispersion type and can exhibit a phase difference more suitable for each color.
Specifically, as illustrated in FIG. 10 described above, for example, when used in a light emitting display device that displays red (R), green (G), and blue (B) colors, The thickness of the alignment portion corresponding to green and blue is preferably increased in this order, and the thickness of the corresponding retardation portion is preferably decreased in this order.

The difference in thickness between the alignment portion adjacent to the alignment portion in this embodiment is not particularly limited as long as it is appropriately set according to the use of the light emitting display device of the present invention. When the in-plane retardation value (Re) of the retardation layer is λ / 4, the wavelengths of the adjacent colors to be displayed are λ1 and λ2 (λ1> λ2), and on the alignment layer (each alignment portion). When the refractive index anisotropy in the in-plane direction of the retardation layer (each retardation portion) formed on the substrate is Δn, the difference in thickness is (λ1−λ2) × (1/4) × (1 / Δn) It is preferable to set it to the value indicated by
For example, when the in-plane retardation value (Re) of the retardation layer (each retardation portion) is λ / 2, the difference in thickness is (λ1−λ2) × (1/2) × (1 / It is preferable to set it to a value indicated by Δn).
More specifically, when the in-plane retardation value (Re) is λ / 4 or λ / 2 in this embodiment, the difference in thickness is (λ1−λ2) × (1/4 (or 1 / 2)) × (1 / Δn) ± 200 nm (in the case of λ / 4) or 400 nm (in the case of λ / 2), preferably (λ1-λ2) × (1/4 (or 1 / 2)) × (1 / Δn) ± 100 nm (in the case of λ / 4) or 200 nm (in the case of λ / 2), preferably (λ1-λ2) × (1/4 (or 1 / 2)) × (1 / Δn) ± 50 nm (in the case of λ / 4) or 100 nm (in the case of λ / 2). It is because it can be made more excellent in visibility.

  The refractive index anisotropy Δn is the refractive index Nx in the slow axis direction having the largest refractive index in the in-plane direction of the refractive index anisotropic body and the refraction in the fast axis direction orthogonal to the slow axis direction. Depending on the rate Ny, it is a value represented by Nx-Ny, usually in the range of 0.05 to 0.3, and more generally in the range of 0.1 to 0.15.

The specific thickness difference between adjacent alignment portions in this embodiment is appropriately determined depending on the type of rod-shaped compound used in the above-described retardation layer and the in-plane retardation value required for the retardation layer. .
However, if the distance is a rod-like compound generally used in this embodiment, the adjacent colors are red (610 to 750 nm), green (500 to 560 nm), and blue (435 to 480 nm), and the retardation layer When the in-plane retardation value is λ / 4 of each corresponding color, it is usually within the range of 0.01 μm to 0.03 μm between the alignment portion corresponding to red and the alignment portion corresponding to green. Thus, the distance between the alignment portion corresponding to green and the alignment portion corresponding to blue falls within the range of 0.01 μm to 0.03 μm.

In addition, the difference in the thickness of the alignment part adjacent to the said alignment part shall mean the distance shown by Da in FIG. 11, respectively. In the figure, Da represents the difference in thickness between the thickest oriented portion and the second thickest oriented portion.
Further, as shown in FIG. 11, the difference between the thickness of the alignment portion and the thickness of the adjacent alignment portion means the thickness including the fine uneven shape on the surface.

  The pattern of the orientation portion in this aspect, that is, the pattern in plan view is not particularly limited as long as it corresponds to the pattern of each color of the light emitting display device. Examples of such a pattern include a belt-like pattern, a mosaic pattern, and a staggered pattern. In particular, in this embodiment, it is preferable that the patterns of the respective orientation portions are in the form of strips parallel to each other, that is, the patterns of the respective colors are in the form of strips parallel to each other. This is because it is easy to make correspondence with the patterns of each color formed in the light emitting display device. Moreover, it is because it is easy to form each orientation part with a sufficient pattern precision.

  FIG. 8 and FIG. 9 which have already been described are schematic views showing an example in which the orientation portion is formed in a belt-like pattern parallel to each other. As shown in FIGS. 8 and 9, in the alignment layer 2 used in this embodiment, it is preferable that the alignment portions are formed in a belt-like pattern parallel to each other.

When the alignment portion is formed in a strip pattern, the width of each alignment portion is not particularly limited as long as it corresponds to the pattern of each color, and the width of each alignment portion is the same. May be different or different.
However, in this embodiment, it is preferable that the widths of the orientation portions are the same. This is because it becomes easy to make correspondence with the patterns of the respective colors, and as a result, it can be easily manufactured.

  The specific width of the alignment portion is not particularly limited as long as it can be correlated with the pattern of each color. A pixel portion of each color is formed in the light emitting display device. It is determined appropriately so as to correspond to the width. Thus, the width of the orientation portion is not particularly limited, but it is usually preferably in the range of 10 μm to 1000 μm, and more preferably in the range of 50 μm to 500 μm.

  Furthermore, in the present embodiment, when the orientation portion is formed in the strip pattern, the direction in which the strip pattern is formed is not particularly limited. For example, when the pattern retardation film of the present embodiment is long, the belt-like pattern may have a longitudinal direction parallel to the longitudinal direction of the pattern retardation film or an orthogonal direction. Further, it may be a direction that crosses diagonally. Especially in this aspect, it is preferable that the longitudinal direction of the said strip | belt-shaped pattern is parallel to the longitudinal direction of a pattern phase difference film. This is because the band-like pattern is formed in such a direction, so that it can be formed easily and in large quantities.

  Although the orientation part used for this aspect may be formed so that each orientation part may become a separate body, it is preferable that all the orientation parts are formed integrally.

b. Retardation part The retardation part in this aspect comprises the said retardation layer, and thickness differs according to the said orientation part.
The retardation part used in this embodiment expresses retardation by containing a rod-shaped compound to be described later. The degree of retardation is determined depending on the type of the rod-shaped compound and the retardation part. It is determined depending on the thickness.
Therefore, the thickness of the retardation part used in this embodiment is not particularly limited as long as it is within a range in which a predetermined retardation can be achieved, and is appropriately determined according to the use of the pattern retardation film of this embodiment. Is.

  The thickness of the retardation portion in the present embodiment is not particularly limited as long as the desired retardation can be expressed corresponding to the wavelength of each color, and the use of the pattern retardation film of the present embodiment It is set appropriately according to the above. Specifically, the in-plane retardation value of the phase difference portion is within a range corresponding to λ / 4 minutes of each corresponding color, within a range corresponding to λ / 2 minutes, and further, λ / 4 + λ Within a range corresponding to / 2 minutes.

  In this embodiment, when the thickness of the retardation portion is set to a distance within a range corresponding to λ / 4 minutes of each color corresponding to the in-plane retardation, the specific distance is determined by the rod-like shape. It is appropriately determined depending on the type of compound and the corresponding color.

  In the present embodiment, the distance from the transparent film substrate on the surface opposite to the surface in contact with the orientation portion of the retardation portion is preferably the same between adjacent retardation portions. It is because the surface shape of the pattern phase difference film of this aspect can be made flat, and it can be excellent in pasting property with other members. Moreover, in this aspect, it is because the thickness difference between the phase difference parts from which thickness differs can be absorbed because an orientation layer has an orientation part from which thickness differs.

(E) Method for Producing Pattern Retardation Film As a method for producing the pattern retardation film of this embodiment, for example, after forming an alignment layer having a first alignment region and a second alignment region on a transparent film substrate. It can be manufactured by applying a retardation layer-forming coating solution containing a rod-shaped compound on the alignment layer, and performing a curing treatment as necessary to form a retardation layer.

  As a method for forming an alignment layer on the transparent film substrate, for example, an alignment layer forming coating solution containing the above-described constituent materials is applied on the transparent film substrate and dried to form an alignment layer. A method of forming a first alignment region and a second alignment region by forming a film made of a coating liquid, performing a curing treatment as necessary, and then forming fine irregularities on the surface of the film, or a transparent film Examples thereof include a method of transferring an alignment layer separately formed in advance on a substrate. As a specific method for forming the alignment layer, for example, a striped line-shaped unevenness or fine line-shaped unevenness is cut into a mold, an ultraviolet curable resin is applied thereon, and a transparent film is further formed thereon. Examples include a method in which a substrate is brought into close contact, an ultraviolet ray is irradiated to cure the ultraviolet curable resin, and then peeled off from a mold.

  The retardation layer-forming coating solution usually comprises a rod-like compound and a solvent, and may contain a polymerization initiator or the like as necessary. The solvent used in the retardation layer forming coating solution is not particularly limited as long as it can dissolve the rod-like compound at a desired concentration and does not corrode the transparent film substrate. Such solvents include hydrocarbon solvents such as benzene and hexane, ketone solvents such as methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone, ether solvents such as tetrahydrofuran and 1,2-dimethoxyethane, halogens such as chloroform and dichloromethane. Alkyl halide solvents, ester solvents such as methyl acetate, ethyl acetate, butyl acetate, propylene glycol monomethyl ether acetate, amide solvents such as N, N-dimethylformamide, sulfoxide solvents such as dimethyl sulfoxide, anones such as cyclohexane Examples of the solvent include alcohol solvents such as methanol, ethanol, and propanol, but are not limited thereto. Further, the solvent used in this embodiment may be one type or a mixed solvent of two or more types of solvents.

  The content of the rod-shaped compound in the retardation layer forming coating liquid is determined depending on the coating method for applying the retardation layer forming coating liquid on a transparent film substrate, etc. If it is in the range which can make the viscosity of the coating liquid into a desired value, it will not specifically limit. Among these, in this embodiment, the content of the rod-shaped compound is preferably in the range of 5% by mass to 30% by mass, particularly in the range of 10% by mass to 20% by mass in the retardation layer forming coating solution. It is preferable that

  The retardation layer forming coating solution may contain a photopolymerization initiator as necessary. In particular, when a treatment for curing the retardation layer by ultraviolet irradiation is performed, it is preferable to include a photopolymerization initiator. As the photopolymerization initiator used in this embodiment, generally known ones such as benzophenone compounds can be used. Moreover, when using a photoinitiator, a photoinitiator adjuvant can be used together. Examples of such photopolymerization initiation assistants include tertiary amines such as triethanolamine and methyldiethanolamine, and benzoic acid derivatives such as ethyl 2-dimethylaminoethylbenzoate and ethyl 4-dimethylamidebenzoate. Yes, but not limited to these.

  The coating method for coating the retardation layer forming coating solution on the transparent film substrate is not particularly limited as long as it can achieve desired flatness. Specifically, gravure coating method, reverse coating method, knife coating method, dip coating method, spray coating method, air knife coating method, spin coating method, roll coating method, printing method, dip pulling method, curtain coating method, die coating Examples thereof include, but are not limited to, a method, a casting method, a bar coating method, an extrusion coating method, and an E-type coating method. As a method for drying the coating film of the retardation layer forming coating solution, a commonly used drying method such as a heat drying method, a reduced pressure drying method, or a gap drying method can be used. Further, when a polymerizable material is used as the rod-shaped compound, a method for polymerizing the polymerizable material is not particularly limited, and may be appropriately determined according to the type of the polymerizable functional group that the polymerizable material has. Good.

(2) 2nd aspect Next, the 2nd aspect of the pattern phase difference plate used for this aspect is demonstrated. The pattern retardation plate of this aspect is formed on the transparent film substrate, and an alignment layer in which a thick film region having a large thickness and a thin film region having a thickness smaller than the thick film region are formed in a pattern on the surface; A retardation film formed on the surface of the alignment layer and having a retardation layer containing a rod-like compound having refractive index anisotropy, wherein the thick film region and the thin film region are in the same direction. A phase-difference layer in which fine irregularities are formed on the surface so that rod-shaped compounds can be arranged, and the first circular polarization region and the second circular polarization region are formed on the thick film region or It is a retardation layer formed on the thin film region.

  Specific examples of the pattern retardation plate used in this embodiment, that is, the pattern retardation film, include those already shown in FIG.

  In this aspect, the alignment layer is formed by forming the thick film region and the thin film region, and is formed on the surface of the thin film region and the fine uneven shape formed on the surface of the thick film region. Since the fine concavo-convex shape is such that the rod-shaped compound can be arranged in the same direction, a retardation layer formed on the thick film region and a retardation layer formed on the thin film region Will show different retardation values (in-plane retardation) corresponding to the difference in thickness between the thick film region and the thin film region. For this reason, in the present aspect, the thick film region and the thin film region are formed of a high retardation region having a large retardation value in the retardation layer and a low retardation region having a retardation value smaller than that of the high retardation region. It is formed in the same pattern as the pattern. Therefore, according to this aspect, the retardation layer can have a patterned retardation film in which a high retardation region and a low retardation region are arranged in a pattern. Therefore, a three-dimensional image can be easily obtained by using such a high retardation region and a low retardation region as the first circular polarization region and the second circular polarization region.

The pattern retardation plate of this embodiment, that is, the pattern retardation film has at least a transparent film substrate, an alignment layer, and a retardation layer, and may have other configurations as necessary. .
Hereinafter, each structure of such a pattern phase difference film is demonstrated in detail.
In addition, about the said transparent film base material, since it can be set as the content as described in the term of said "(1) 1st aspect", description here is abbreviate | omitted.

(A) Orientation layer First, the orientation layer used for this aspect is demonstrated. The alignment layer used in this embodiment is formed on the transparent film substrate and has a function of arranging rod-shaped compounds contained in the retardation layer. The alignment layer used in this embodiment has a thick film region having a large thickness on the surface and a thin film region having a smaller thickness than the thick film region, and the thick film region and the thin film are formed in a pattern. Fine irregularities are formed on the surface of the region so that the rod-shaped compounds can be arranged in the same direction. In this embodiment, by using such an alignment layer, the alignment direction of the rod-shaped compounds in the retardation layer formed on the alignment layer is the same in the entire retardation layer, but on the thick film region. Since the thickness of the formed retardation layer (low retardation region) and the retardation layer (high retardation region) formed on the thin film region are different, the high retardation region is equivalent to the difference in thickness. The phase difference value becomes higher than that in the low phase difference region. Therefore, in this embodiment, by using such an alignment layer, the low retardation region and the high retardation region are arranged in a pattern in the retardation layer corresponding to the pattern in which the thick film region and the thin film region are formed. A patterned retardation film can be obtained.

(I) Thick film region and thin film region The thick film region and the thin film region formed in the alignment layer in this embodiment are portions having different thicknesses on the surface of the alignment layer. As described above, in the pattern retardation film of this embodiment, patterns having different retardation values corresponding to the thickness difference between the thick film region and the thin film region are formed in the retardation layer. For this reason, the difference in thickness between the thick film region and the thin film region in this embodiment is appropriately determined depending on how much the difference in the retardation value between the low retardation region and the high retardation region is to be made. Accordingly, the difference in thickness between the thick film region and the thin film region is appropriately determined according to the application of the present invention and the type of rod-shaped compound used in the retardation layer described later, and is not particularly limited. Absent. In particular, in this embodiment, the difference in thickness between the thick film region and the thin film region is the difference between the in-plane retardation value of the high retardation region of the retardation layer and the in-plane retardation value of the low retardation region of the retardation layer. The difference is preferably a distance corresponding to λ / 2 minutes. Thereby, for example, when forming the retardation layer on the alignment layer, the in-plane retardation of the low retardation region corresponds to λ / 4 minutes, so that the obtained pattern retardation film has a low retardation. The in-plane retardation value of the region corresponds to λ / 4 minutes, and the in-plane retardation value of the high retardation region corresponds to λ / 4 + λ / 2 minutes. This is because the linearly polarized light passing through the low phase difference region and the high phase difference region becomes circularly polarized light that is orthogonal to each other, so that a three-dimensional image can be displayed with high accuracy.

  In this embodiment, the difference in thickness between the thick film region and the thin film region is the difference between the in-plane retardation value of the high retardation region and the in-plane retardation value of the low retardation region corresponding to λ / 2 minutes. When the distance is such a distance, the specific distance is appropriately determined depending on the type of rod-shaped compound used for the retardation layer described later. However, the distance is usually in the range of 1.5 μm to 3.0 μm if it is a rod-like compound generally used in this embodiment.

  The thickness of the thick film region and the thin film region is not particularly limited as long as the difference between the thick film region and the thin film region is within a predetermined range. It is not something. For example, when the thickness of the thick film region is 3.0 μm and the thickness of the thin film region is 1.0 μm, the difference is 2.0 μm, but the thickness of the thick film region is 13.0 μm and the thickness of the thin film region is 11. The difference may be 2.0 μm at 0 μm. Among these, in this embodiment, the thickness of the thick film region is preferably in the range of 1.6 μm to 20 μm, more preferably in the range of 2.5 μm to 10 μm, and in the range of 1.5 μm to 5 μm. More preferably. The thickness of the thin film region is preferably in the range of 0.1 μm to 17 μm, more preferably in the range of 1 μm to 7 μm, and still more preferably in the range of 1 μm to 4 μm.

The thickness of the thick film region, the thickness of the thin film region, and the difference in thickness between the thick film region and the thin film region mean the distances indicated by D1, D2, and D3 in FIG. 12, respectively. .
Moreover, as shown in FIG. 12, the thickness of the said thick film area | region and the said thin film area shall say the thickness containing the fine uneven | corrugated shape formed in the surface.

  The thick film region and the thin film region are formed in a pattern on the surface of the alignment layer. Here, the pattern in which the thick film region and the thin film region are formed corresponds to the pattern in which the pixel portion is formed in the pattern in which the first circular polarization region and the second circular polarization region are formed. As long as it can be related and can display a desired three-dimensional image, it can be appropriately determined according to the application of the present invention, and is not particularly limited. Absent. Examples of such a pattern include a belt-like pattern, a mosaic pattern, and a staggered pattern. In particular, in this embodiment, the thick film region and the thin film region are formed in a strip-like pattern parallel to each other, that is, the first circular polarization region and the second circular polarization region included in the circular polarization layer. Are preferably formed in a strip-like pattern parallel to each other. By forming the thick film region and the thin film region in a belt-like pattern parallel to each other, the first circular polarization region and the second circular polarization region can be easily formed into a belt-like pattern parallel to each other. As described above, the pattern in which the pixel portion is formed in the light-emitting display and the pattern in which the first circular polarization region and the second circular polarization region are formed through a polarizing plate. This is because it is easy to make the correspondence.

  FIG. 13 is an explanatory view showing an example in which the thick film region and the thin film region are formed in a strip-like pattern parallel to each other. Here, FIG. 13B is a cross-sectional view taken along line X-X ′ in FIG. As shown in FIGS. 13A and 13B, in the alignment layer 2 used in this embodiment, the thick film region 2C and the thin film region 2D are preferably formed in a strip-like pattern parallel to each other. Here, W1 and W2 in FIGS. 13A and 13B respectively indicate the band width of the thick film region and the band width of the thin film region.

  When the thick film region and the thin film region are formed in a belt-like pattern, the width of the thick film region and the thin film region is a pattern in which the first circular polarization region and the second circular polarization region are formed. There is no particular limitation as long as it can be associated with the pattern in which the pixel portion is formed and can display a desired three-dimensional image. It can be the same as the first alignment region and the second alignment region in “1) First Mode”.

  Further, in the present embodiment, when the thick film region and the thin film region are formed in the belt-like pattern, a black line that absorbs light may be provided between the thick film region and the thin film region. In this case, the width of the black line is not particularly limited, but it is usually preferably in the range of 10 μm to 50 μm.

  In the present embodiment, when the thick film region and the thin film region are formed in the strip pattern, the direction in which the strip pattern is formed is not particularly limited. For example, it may be the same as the content described in the section “(1) First aspect”.

(Ii) Fine uneven shape Next, the fine uneven shape formed on the surfaces of the thick film region and the thin film region will be described. The pattern retardation film of this embodiment has a configuration in which a retardation layer described later is laminated on the alignment layer, and the fine concavo-convex shape formed on the surfaces of the thick film region and the thin film region is It is formed in order to arrange rod-shaped compounds contained in the retardation layer in a certain direction.

  The fine concavo-convex shape in this embodiment is not particularly limited as long as the rod-like compound can be arranged in a certain direction. Here, since the rod-like compound has an array property parallel to the longitudinal direction of the line-shaped uneven structure on the surface where the line-shaped uneven structure is formed, the fine uneven shape in this embodiment is composed of a line-shaped uneven structure. It is preferable that This is because according to such a line-shaped uneven structure, the direction in which the rod-shaped compounds are arranged can be determined in advance.

  The form in which the line-shaped uneven structure is formed on the surfaces of the thick film region and the thin film region may be an aspect in which minute line-shaped uneven structures are randomly formed in a substantially constant direction, or the line-shaped uneven structure. May be formed in a stripe shape. These aspects will be described with reference to the drawings. FIG. 14 is a schematic view showing an example of an aspect in which the fine uneven shape is formed. As illustrated in FIG. 14, as a form in which the line-shaped uneven structure is formed as the fine uneven shape, an aspect in which minute line-shaped uneven structures are randomly formed in a substantially constant direction may be used (FIG. 14). (A), or an embodiment in which the line-shaped uneven structure is formed in a stripe shape (FIG. 14 (b)), or may be an embodiment in which both are combined (FIG. 14 (c)). ).

  Here, a mode in which minute line-shaped uneven structures are randomly formed in a substantially constant direction is, for example, a line-shaped uneven structure such as a minute scratch formed when the surface is rubbed. Means an aspect formed in a substantially constant direction. On the other hand, the aspect in which the line-shaped uneven structure is formed in a stripe shape means an aspect in which convex portions formed in a wall shape are formed in a stripe shape at regular intervals. The size of the line-shaped concavo-convex structure is relatively larger than the above-mentioned random mode, and for example, concavo-convex shapes such as minute scratches formed when the surface is rubbed are not included. is there.

  In this aspect, the fine unevenness formed on the surface of the thick film region and the fine unevenness formed on the surface of the thin film region may be the same or different. In particular, in this embodiment, it is preferable that the fine uneven shape formed on at least one surface of the thick film region or the thin film region is the above-described stripe-like line uneven shape (see FIG. 14C). In the aspect in which the minute line-shaped uneven structure is randomly formed in a substantially constant direction and the aspect in which the fine line-shaped uneven structure is formed in the stripe-like line-shaped uneven structure, the latter may exhibit a stronger alignment regulating force on the rod-shaped compound. Therefore, the boundary between the high phase difference region and the low phase difference region in the phase difference layer can be clearly defined when the fine uneven shape formed on at least one surface of the thick film region or the thin film region is a stripe-shaped line uneven shape. It is because it can be made. From this point of view, in the present embodiment, it is preferable that the fine unevenness formed on the surface of the thick film region or the thin film region is both the stripe-like line-like uneven shape (see FIG. 14B). .

  When the striped line-shaped uneven structure is formed, the height, width, and period of the line-shaped uneven structure are not particularly limited as long as the rod-shaped compound can be arranged. It may be the same as that described in “1) First aspect”.

(Iii) Constituent material The constituent material used for forming the alignment layer in the present embodiment is not particularly limited as long as the thick film region and the thin film region described above can be formed in a predetermined shape. Instead, the contents can be the same as those described in the section “(1) First aspect”.

(B) Retardation layer Next, the retardation layer in this aspect is demonstrated. The retardation layer in this embodiment is a circularly polarizing layer including the first circularly polarizing region and the second circularly polarizing region, and is formed on the alignment layer described above and has a rod-like compound having refractive index anisotropy. By containing, it imparts retardation to the pattern retardation film of this embodiment. Further, in this aspect, the alignment layer having the above-described characteristics is formed, so that the retardation layer in this aspect has a high retardation region and a low retardation region, that is, the first circular polarization region and The second circularly polarized region is formed in the same pattern as the pattern in which the thin film region and the thick film region are formed.
The rod-like compound having the refractive index anisotropy can be the same as that described in the section “(1) First aspect”, and thus the description thereof is omitted here.

  The retardation layer used in the present embodiment expresses retardation by containing the rod-shaped compound. The degree of the retardation is the type of the rod-shaped compound and the thickness of the retardation layer. It is determined depending on Therefore, the thickness of the retardation layer used in the present embodiment is not particularly limited as long as it is within a range in which a predetermined retardation can be achieved, and is appropriately determined according to the application of the present invention. Further, the thickness of the retardation layer in this aspect is different between the low retardation region and the high retardation region. In particular, in this embodiment, the thickness of the low retardation region is preferably within a range in which the in-plane retardation of the low retardation region corresponds to λ / 4 minutes. As a result, the difference in thickness between the thick film region and the thin film region is defined as a distance corresponding to the difference between the in-plane retardation value of the low retardation region and the in-plane retardation value of the high retardation region corresponding to λ / 2 minutes. By doing so, the in-plane retardation value in the low retardation region corresponds to λ / 4 minutes, and the in-plane retardation value in the high retardation region in the retardation layer corresponds to λ / 4 + λ / 2 minutes. In such a pattern retardation film, linearly polarized light passing through the low retardation region and the high retardation region becomes circularly polarized light that is orthogonal to each other, so that a three-dimensional image can be displayed with higher accuracy. It is.

  In this aspect, when the thickness of the low retardation region is set to a distance within a range in which the in-plane retardation of the low retardation region corresponds to λ / 4 minutes, what is the specific distance? It is appropriately determined depending on the type of rod-shaped compound used for the retardation layer. However, if the distance is a rod-shaped compound generally used in this embodiment, it is usually preferably in the range of 0.1 μm to 1.9 μm, and preferably in the range of 0.25 μm to 1.75 μm. Is more preferable, and it is still more preferable that it exists in the range of 0.5 micrometer-1.5 micrometers.

(C) Pattern Retardation Film (i) Other Configurations The pattern retardation film of this embodiment has at least the transparent film substrate, the alignment layer, and the retardation layer. It may have. As another structure used in this embodiment, for example, an antiglare layer or an antireflection layer formed on the surface of the transparent film substrate opposite to the surface on which the alignment layer is formed can be mentioned. Specifically, such an antiglare layer or antireflection layer can be the same as the contents described in the above section “(1) First aspect”.

(Ii) Pattern Retardation Film The pattern retardation film of this aspect has a pattern of a high retardation region and a low retardation region in the retardation layer so as to correspond to the pattern in which the thick film region and the thin film region described above are formed. It has the structure formed in. Here, the degree of phase difference of the high phase difference region and the low phase difference region is not particularly limited as long as a desired three-dimensional image can be displayed, and may be appropriately selected according to the use of the present invention. Can be determined. Accordingly, the specific numerical range of the in-plane retardation indicated by the high retardation region and the low retardation region is not particularly limited, and may be appropriately adjusted according to the application of the present invention. In this embodiment, by adjusting the thickness difference between the thick film region and the thin film region, in-plane retardation having an arbitrary value can be imparted to the high retardation region and the low retardation region. In particular, the in-plane retardation value of the high retardation region of the patterned retardation film of this embodiment is equivalent to λ / 4 + λ / 2 minutes, and the in-plane retardation value of the low retardation region is λ / 4. It is preferable that the amount corresponds to minutes. More specifically, the in-plane retardation value of the high retardation region is preferably in the range of 300 nm to 480 nm, more preferably in the range of 330 nm to 450 nm, and in the range of 360 nm to 420 nm. More preferably. The in-plane retardation value of the low retardation region is preferably in the range of 100 nm to 160 nm, more preferably in the range of 110 nm to 150 nm, and still more preferably in the range of 120 nm to 140 nm. In the retardation layer in this embodiment, although the in-plane retardation value in the high retardation region and the in-plane retardation value in the low retardation region are different, the directions of the slow axes are almost the same.

  Further, the pattern in which the high retardation region and the low retardation region are formed in the retardation layer in the present embodiment is not particularly limited, and can be determined as appropriate according to the application of the present invention. Since the pattern in which the high retardation region and the low retardation region are formed matches the pattern in which the thick film region and the thin film region are formed in the alignment layer, the pattern for forming the thick film region and the thin film region is selected. Thus, the pattern in which the high phase difference region and the low phase difference region are simultaneously formed is determined.

  In the pattern retardation film of this embodiment, the fact that the pattern composed of the high retardation region and the low retardation region is formed in the retardation layer can be evaluated by measuring and comparing in-plane retardation values, for example. it can.

(Iii) Orientation part and phase difference part The pattern phase difference plate of this aspect, ie, the pattern phase difference film of this aspect, includes a transparent film base material, an orientation layer, and a phase difference layer as described above. The layer has a different thickness corresponding to the pattern of each color of the light emitting display device, that is, includes an orientation portion having a different thickness corresponding to the pattern of each color of the light emitting display device. It is preferable that a retardation portion having a different thickness corresponding to the orientation portion is included. This is because a 3D display device having excellent display quality can be obtained. Further, it can be easily manufactured and can be mass-produced.

Such a pattern retardation film of this embodiment will be described with reference to the drawings. 15 is a cross-sectional view taken along the line BB in FIG. 16, and FIG. 16 is a schematic plan view showing an example of the pattern retardation film of this embodiment. As illustrated in FIGS. 15 and 16, the pattern retardation film 20 (10) of this aspect includes a thick film region 2 </ b> C having a large thickness and a thin film region 2 </ b> D having a smaller thickness than the thick film region 2 </ b> C. Fine irregularities are formed on the surface so that the alignment parts included in the film region 2C and the thin film region 2D can arrange the rod-shaped compounds in the same direction.
Further, the alignment portion (2a ″ -1, 2a ″ -2, 2a ″ -3) included in the thin film region 2D is formed with a fine concavo-convex shape in which rod-shaped compounds are arranged in a certain direction, and the thick film region In 2C (2b ″ -1, 2b ″ -2, 2b ″ -3), fine concavo-convex shapes in which rod-shaped compounds are arranged in the same direction as the thin film region 2D are formed. In addition, alignment portions (2a ″ -1, 2a ″ -2, 2a ″ -3) included in the thin film region 2D and alignment portions (2b ″ -1, 2b ″ included in the thick film region 2C). -2, 2b ″ -3) corresponds to the same color of the display device. That is, the alignment unit 2a ″ -1, the alignment unit 2b ″ -1, the alignment unit 2a ″ -2, the alignment unit 2b ″ -2, the alignment unit 2a ″ -3, and the alignment unit 2b ″ -3 are , Respectively, corresponding to the same color pattern of the display device.
Further, the phase difference layer 3 has a phase difference in which the high retardation region 3D has different thicknesses corresponding to the alignment portions (2a ″ -1, 2a ″ -2, 2a ″ -3) included in the thin film region 2D. Portion (3a ″ -1, 3a ″ -2, 3a ″ -3), and the low retardation region 3C is included in the thick film region 2C (2b ″ -1, 2b ″ -2). 2b ″ -3), and includes phase difference portions (3b ″ -1, 3b ″ -2, 3b ″ -3) having different thicknesses.
In this example, in the high retardation region 3D and the low retardation region 3C, rod-shaped compounds are arranged in a direction of 0 ° with respect to the longitudinal direction, and the slow axes of both regions are parallel to each other. Further, the difference in the thickness of the orientation portion corresponding to the same color included in the thick film region and the thin film region corresponds to the difference in the in-plane retardation value of the corresponding retardation portion corresponding to λ / 4 of each corresponding color. The in-plane retardation value of each phase difference portion included in the low retardation region corresponds to λ / 4 of each color, and the in-plane retardation value of each phase difference portion included in the high retardation region. Corresponds to λ / 4 + λ / 2 minutes of each color.
Moreover, the arrow in FIG. 16 shows the arrangement | sequence direction of a rod-shaped compound.

  The orientation part and the phase difference part may be the same as the contents described in the section “1. First aspect”, and thus the description thereof is omitted here.

(D) Method for Producing Pattern Retardation Film As a method for producing the pattern retardation film of this embodiment, for example, after forming an alignment layer having a thick film region and a thin film region on a transparent film substrate, the alignment is performed. It can manufacture by coating the coating liquid for phase difference layer formation containing a rod-shaped compound on a layer, performing a hardening process as needed, and forming a phase difference layer.
In addition, as the method for forming the alignment layer, the coating liquid for forming the retardation layer, and the coating method for coating on the transparent film substrate, the contents described in the above section (1) First aspect Since it can be the same, description here is abbreviate | omitted.

(3) 3rd aspect Next, the 3rd aspect of the pattern phase difference plate used for this aspect is demonstrated. The pattern retardation plate of this aspect contains the transparent film substrate, an alignment layer formed on the transparent film substrate, and a rod-shaped compound formed on the alignment layer and having refractive index anisotropy. A phase retardation film having a retardation layer, and a second retardation layer disposed on the pattern retardation film and having an in-plane retardation value corresponding to λ / 4, and the retardation layer However, the first retardation region corresponding to the in-plane retardation value corresponding to λ / 2 is arranged in a pattern, the slow axis direction of the first retardation region, and the second retardation The slow axis direction of the layer is orthogonal or parallel to each other, and the first circular polarization region includes the first retardation region and the second retardation layer on the first retardation region. To do.
The second circular polarization region includes at least a second retardation layer on a region other than the first retardation region.
In addition, the pattern phase difference plate of this aspect is arrange | positioned so that the said polarizing plate, phase difference layer, and 2nd phase difference layer may become this order.

  Specific examples of the pattern retardation plate used in this embodiment, that is, the one having the pattern retardation film and the second retardation layer, include those already shown in FIG.

  In this aspect, the first circular polarization region includes the first retardation region in the retardation layer and the second retardation layer on the first retardation region, so that a three-dimensional image can be easily obtained. Can be obtained.

Here, the pattern retardation plate of this embodiment may be referred to as a pattern retardation film and a second retardation layer (hereinafter referred to as “λ / 4 plate”) whose in-plane retardation value corresponds to λ / 4. .)), The point that the 3D display device can be easily manufactured will be described in more detail. FIG. 17 is a schematic view showing an example of a light-emitting display device capable of three-dimensional display using a pattern retardation plate in which a pattern retardation film used in this embodiment and a λ / 4 plate are combined. As illustrated in FIG. 17, the light emitting display device using the pattern retardation plate of this aspect, that is, the combination of the pattern retardation film and the λ / 4 plate, can perform 3D display by a passive method. . The principle is as follows.
First, the pixel portion of the light-emitting display is divided into a plurality of two types of pixels, a right-eye video display pixel and a left-eye video display pixel, and a right-eye video is displayed on one group of pixels, The left eye image is displayed on the pixels of the group. Next, as the pattern retardation film used in this aspect, the first retardation region of the retardation layer is formed so as to correspond to the arrangement pattern of the video display pixels for the left eye, and regions other than the first retardation region ( In FIG. 17, it is assumed that nothing is formed in the area.) Is formed so as to correspond to the arrangement pattern of the right-eye video display pixels. And the pattern phase difference film used for such this aspect is arrange | positioned at the display surface side of a polarizing plate, Furthermore, (lambda) / 4 board is arrange | positioned at the display surface side of a pattern phase difference film. At this time, the direction of the slow axis of the first retardation region and the direction of the polarization axis of the polarizing plate intersect at 45 °, and further, the slow axis direction of the first retardation region and the λ / 4 plate The slow axis direction should be parallel or orthogonal. By disposing the pattern retardation film and the λ / 4 plate in this manner, images displayed by the right-eye image display pixel and the left-eye image display pixel (hereinafter referred to as “right-eye image” and “left-eye image”, respectively) Is visually recognized by the observer through the following route.
That is, each image displayed by the right-eye image display pixel and the left-eye image display pixel first passes through the polarizing plate, and thus is converted into linearly polarized light. Here, in FIG. 17, since the polarization axis of the polarizing plate is in the 0 ° direction, each image transmitted through the second polarizing plate is also linearly polarized light in the 0 ° direction. Next, each image thus converted into linearly polarized light (0 °) is incident on the pattern retardation film used in this embodiment, but the left-eye image passes through the first retardation region, Since the image for the right eye passes through an area where no retardation layer is formed, the image for the left eye is transmitted through the pattern retardation film as linearly polarized light (L1) having a polarization axis of 90 °, but the image for the right eye is changed. No, the pattern retardation film is transmitted with the linearly polarized light (L2) having a polarization axis of 0 °. Next, when L1 and L2 are incident on the λ / 4 plate, the left-eye image is converted into right-handed circularly polarized light (C1), and the right-eye image is converted into left-handed circularly polarized light (C2). It will be.
Thus, the right-eye image and the left-eye image that have passed through the pattern retardation film and the λ / 4 plate used in this aspect are converted into circularly polarized light orthogonal to each other. Wear circularly polarized glasses that use circularly polarized lenses orthogonal to each other so that the right-eye image passes only through the right-eye lens and the left-eye image passes only through the left-eye lens. By doing so, the image for the right eye can reach only the right eye, and the image for the left eye can reach only the left eye, and three-dimensional display becomes possible.
In addition, in FIG. 17, although the example which is not formed in area | regions other than a 1st phase difference area in the phase difference layer in the pattern phase difference film used for this aspect was demonstrated, for example, the said 1st rank In the region other than the phase difference region, the in-plane retardation value corresponds to λ / 2 minutes, and the slow axis direction intersects with the slow axis direction of the first phase difference region at 45 °. Even in the case where the second phase difference region in which the phase axis direction is parallel or orthogonal to the polarization axis direction of the polarizing plate is formed, a light emitting display device capable of three-dimensional display is obtained in the same manner as described above. be able to.

The pattern retardation plate of this aspect has at least a pattern retardation film and a second retardation layer.
Hereafter, each structure of such a pattern phase difference plate is demonstrated in detail.

(A) Pattern retardation film The pattern retardation film used for this aspect has a transparent film base material, an orientation layer, and a phase difference layer at least, and has another structure as needed. Is also good. Hereafter, each structure used for the pattern phase difference film used for this aspect is demonstrated in order.
In addition, about the said transparent film base material, since it can be set as the content as described in the term of said "(1) 1st aspect", description here is abbreviate | omitted.

(I) Retardation layer First, the retardation layer used in this embodiment will be described. The retardation layer used in this embodiment contains a rod-shaped compound having refractive index anisotropy, and the first retardation region corresponding to an in-plane retardation value of λ / 2 is arranged in a pattern. is there.

  Here, “the first retardation region is arranged in a pattern” may be an aspect in which the retardation layer is composed of only the first retardation region, or the first retardation layer may be first in a part of the retardation layer. It means that the phase difference regions may be arranged in a pattern. Each aspect of such a retardation layer will be described later.

  The rod-shaped compound contained in the first retardation region will be described. The rod-shaped compound used in this embodiment has refractive index anisotropy. Here, since the first retardation region exhibits a retardation having an in-plane retardation corresponding to λ / 2, the rod-shaped compound is usually unidirectional in the first retardation region. It will be arranged.

  Such a rod-like compound is not particularly limited as long as it can provide the first retardation region with a retardation having an in-plane retardation value corresponding to λ / 2 minutes. It can be the same as that described in the section “1) First aspect”.

  The retardation layer used in this embodiment has a first retardation region whose in-plane retardation value corresponds to λ / 2 minutes, but a specific value of in-plane retardation of the first retardation region. Is usually preferably in the range of 200 nm to 300 nm, more preferably in the range of 220 nm to 280 nm, and particularly preferably in the range of 230 nm to 270 nm.

  The aspect in which the first retardation region is arranged in the retardation layer used in this aspect may be an aspect (A aspect) in which the retardation layer is composed only of the first retardation region, or the retardation layer. The aspect (B aspect) by which the 1st phase difference field is arranged in a part of inside may be sufficient. The aspect of such a retardation layer will be described with reference to the drawings. FIG. 18 is an explanatory diagram illustrating a mode in which the first retardation region is arranged in the retardation layer. As illustrated in FIG. 18, the retardation layer 3 used in this embodiment may be an embodiment including only the first retardation region 3 </ b> E (FIG. 18A), or one of the retardation layers 3 in the retardation layer 3. Alternatively, the first phase difference region 3E may be formed in the part (FIG. 18B).

  The retardation layer used in this embodiment may be any one of the above A embodiment and the above B embodiment, but is preferably the above B embodiment. This is because the B-phase retardation layer does not require the retardation layer itself to have a pattern, so that it is easy to form the retardation layer.

  In the case of using the retardation layer of the above B mode, the retardation layer includes a first retardation region having an in-plane retardation value corresponding to λ / 2 and other regions. In addition, since the first retardation region is arranged in a pattern in the retardation layer, regions other than the first retardation region are also arranged in a pattern in the retardation layer. Here, when the retardation layer used in this embodiment is the one in the above-mentioned embodiment B, the region other than the first retardation region may exhibit retardation or exhibit retardation. The phase of the slow axis may be a direction that intersects with the direction of the slow axis of the first retardation region at 45 ° in the case where the phase difference is present. It takes a thing. Otherwise, it is difficult to display a three-dimensional image (in addition, if a region other than the first phase difference region has a phase difference, the region other than the first phase difference region is designated as “ Referred to as "two phase difference region"). In particular, when the layer of the above-described B mode is used as the phase difference layer used in this mode, it has the above-mentioned first phase difference region and a second phase difference region containing a rod-shaped compound having refractive index anisotropy. The orientation direction of the rod-shaped compound contained in the second retardation region is preferably 45 ° with respect to the orientation direction of the rod-like compound contained in the first retardation region. Further, the second retardation region preferably has an in-plane retardation value corresponding to λ / 2. As a result, the amount of light transmitted through the first retardation region and the second retardation region in the retardation layer can be made substantially the same, and the boundary between the first retardation region and the second retardation region can be made inconspicuous. This is because an excellent display quality can be obtained. That is, if the polarization axis of the polarizing plate and the slow axis of the second retardation region are parallel or orthogonal, the second retardation layer has zero effect of converting the polarization state. The number of in-plane retardation values in the region may be any number, but if the transmittance of light transmitted through the first retardation region and the second retardation region changes, the boundary between the first retardation region and the second retardation region This is because it is more preferable that the first retardation region and the second retardation region are made of the same material and have the same film thickness.

  Such a retardation layer will be described with reference to the drawings. FIG. 19 is an explanatory diagram illustrating an example of a case where the retardation layer used in this aspect includes the first retardation region and the second retardation region. As illustrated in FIG. 19, the retardation layer 3 used in this aspect includes the first retardation region 3 </ b> E and a second retardation region 3 </ b> F containing a rod-shaped compound having refractive index anisotropy. The orientation direction of the rod-shaped compound contained in the second retardation region 3F is a direction of 45 ° with respect to the orientation direction of the rod-like compound contained in the first retardation region 3E, It is preferable that the first retardation region 3E and the second retardation region 3F are arranged in a pattern. In this case, it is preferable that the second retardation region 3F has an in-plane retardation value corresponding to λ / 2.

  When the retardation layer used in this aspect has the first retardation region and the second retardation region as described above, the first retardation region and the second retardation region have a slow axis. The direction intersects at 45 °. Further, as described above, it is more preferable that the in-plane retardation value of both the first retardation region and the second retardation region corresponds to λ / 2.

  The thickness of the retardation layer used in the present embodiment is not particularly limited as long as the in-plane retardation value of the first retardation region is within a range corresponding to λ / 2 minutes. Although it can be appropriately determined according to the type of the rod-like compound and the like, it is usually preferably in the range of 0.5 μm to 4 μm, more preferably in the range of 1 μm to 3 μm. More preferably, it is in the range of 5 μm to 2.5 μm.

  In the retardation layer, the pattern in which the first retardation region is arranged is the pattern in which the first circular polarization region and the second circular polarization region are formed, and the pattern in which the pixel portion is formed. As long as it can be in a correspondence relationship and can display a desired three-dimensional image, it can be appropriately determined according to the application of the present invention, and is particularly limited. is not. Examples of such a pattern include a belt-like pattern, a mosaic pattern, and a staggered pattern. Among these, in this aspect, the first phase difference region is formed in a band-shaped pattern, that is, the first phase difference region and the region other than the first phase difference region are formed in a band-shaped pattern, It is preferable that the first circular polarization region and the second circular polarization region included in the circular polarization layer are formed in a belt-like pattern parallel to each other. By arranging the first retardation region in such a pattern, the first circularly polarized region and the second circularly polarized region can be easily formed into strip-like patterns parallel to each other, as described above. In the light-emitting display, the pattern in which the pixel portion is formed and the pattern in which the first circular polarization region and the second circular polarization region are formed are associated with each other through a polarizing plate. This is because it becomes easy.

  Further, when the retardation layer used in the present aspect is an aspect in which the first retardation region and the second retardation region are arranged in a pattern, the first retardation region and the second retardation layer are used. The regions are preferably arranged in a strip pattern parallel to each other. In this case, the first phase difference region and the second phase difference region are alternately arranged. By such a pattern, the first phase difference region and the second phase difference region are arranged. This is because it is easy to obtain a 3D light emitting display device for the same reason as described above.

In the case where the first retardation region is arranged in a belt-like pattern, the widths of the regions other than the first retardation region and the first retardation region are appropriately determined according to the application of the present invention. Specifically, the width can be the same as the width of the first alignment region and the second alignment region described in the section “(1) First aspect”.
Further, when the phase difference layer used in this aspect is an aspect in which the first phase difference areas and the second phase difference areas formed in a band-like pattern are alternately arranged, the first phase difference area and the second phase difference area are arranged. The width of the phase difference region is preferably the same.

(Ii) Alignment layer Next, the alignment layer used in this embodiment will be described. The alignment layer used in this embodiment is formed on a transparent film substrate and has a function of arranging rod-like compounds contained in the retardation layer.

  The alignment layer used in this embodiment is not particularly limited as long as the rod-shaped compound contained in the retardation layer can be arranged. Generally, the rod-like compound can be arranged. A well-known thing can be used as an alignment layer. Examples of such an alignment layer include those made of an ultraviolet curable resin, a thermosetting resin, an electron beam curable resin, and the like.

  In addition, the alignment layer used in this embodiment has a function of arranging the rod-like compounds. For example, such a function can be performed by rubbing the surface of the alignment layer or by finely forming the surface of the alignment layer. It can be provided by forming an uneven shape.

  In addition, when the phase difference layer used for this aspect is an aspect which consists of said 1st phase difference area | region and 2nd phase difference area | region, the orientation layer used for this aspect is an area | region corresponding to the said 1st phase difference area | region In the region corresponding to the second retardation region, the orientation treatment is preferably performed so that the direction in which the rod-shaped compounds can be arranged intersects by 45 °.

(Iii) Pattern Retardation Film The pattern retardation film of this embodiment has at least the transparent film substrate, the alignment layer, and the retardation layer, but may have other configurations as necessary. It is. As another structure used in this embodiment, for example, an antiglare layer or an antireflection layer formed on the surface of the transparent film substrate opposite to the surface on which the alignment layer is formed can be mentioned. Specifically, such an antiglare layer or antireflection layer can be the same as the contents described in the above section “(1) First aspect”.

(Iv) Orientation part and retardation part The pattern retardation film of this aspect contains a transparent film base material, an orientation layer, and a retardation layer as mentioned above, but the said orientation layer is each color of a light emission type display apparatus. Different thicknesses corresponding to the patterns, that is, including orientation parts having different thicknesses corresponding to the respective color patterns of the light emitting display device, and the retardation layer has a thickness corresponding to the orientation parts. It is preferable that different phase difference portions are included. This is because a 3D display device having excellent display quality can be obtained. Further, it can be easily manufactured and can be mass-produced.

Here, the pattern phase difference film of this aspect containing such an orientation part and a phase difference part is demonstrated with reference to figures. 20 is a cross-sectional view taken along the line CC of FIG. 21, and FIG. 21 is a schematic plan view showing another example of the pattern retardation film of this embodiment. As illustrated in FIGS. 20 and 21, in the pattern retardation film 10 of this embodiment, the alignment layer 2 includes a first alignment region 2E and a first alignment region in which rod-shaped compounds having refractive index anisotropy are arranged in a certain direction. The second alignment region 2F arranged in a direction different from the alignment region 2E is included.
Further, in the alignment portions (2a′-1, 2a′-2, 2a′-3) included in the first alignment region 2E, a fine uneven shape for arranging rod-shaped compounds in a certain direction is formed, and the second alignment region 2F (2b′-1, 2b′-2, 2b′-3) has a fine uneven shape in which rod-like compounds are arranged in a direction different from that of the first alignment region 2E.
The retardation layer 3 has a first retardation region 3E and a second retardation region 3F including rod-like compounds arranged in the arrangement direction of the rod-like compounds of the first alignment region 2E and the second alignment region 2F. Furthermore, the first retardation region 3E has a retardation portion (3a ′) having a different thickness corresponding to the orientation portions (2a′-1, 2a′-2, 2a′-3) included in the first orientation region 2E. -1, 3a′-2, 3a′-3) and the second retardation region 3F is included in the second alignment region 2F (2b′-1, 2b′-2, 2b′-3) The phase difference part (3b'-1, 3b'-2, 3b'-3) from which thickness differs corresponding to is included.
In this example, the first retardation region and the second retardation region are arranged in the direction of 0 ° and 45 ° with respect to the longitudinal direction of the pattern retardation film of this embodiment, respectively. These slow axes intersect at 45 °. In addition, the retardation value of each phase difference portion included in the first phase difference region and the second phase difference region corresponds to λ / 2 of each color. Moreover, the arrow in FIG. 21 is a direction which arranges the rod-shaped compound in each orientation area | region.

  The orientation part and the phase difference part may be the same as the contents described in the section “1. First aspect”, and thus the description thereof is omitted here.

(V) Method for Producing Pattern Retardation Film As a method for producing the pattern retardation film of this embodiment, for example, after forming an alignment layer on a transparent film substrate, a rod-shaped compound is contained on the alignment layer. It can be manufactured by applying a coating solution for forming a retardation layer and performing a curing treatment as necessary to form a retardation layer.
In addition, as the method for forming the alignment layer, the coating liquid for forming the retardation layer, and the coating method for coating on the transparent film substrate, the contents described in the above section (1) First aspect Since it can be the same, description here is abbreviate | omitted.

(B) Second Retardation Layer The second retardation layer used in this embodiment exhibits a retardation having an in-plane retardation value corresponding to λ / 4 minutes. Note that the second retardation layer used in this embodiment has a constant slow axis on the entire surface, and is not formed in a pattern.
In addition, the second retardation layer used in this aspect is located on the first retardation region of the retardation layer, together with the first retardation region, constitutes the first circular polarization region. What is located on a region other than the first retardation region of the retardation layer constitutes the second circular polarization region.

  The second retardation layer used in this embodiment is not particularly limited as long as the in-plane retardation value exhibits a retardation property corresponding to λ / 4 minutes. As such a second retardation layer, a rod-shaped compound having refractive index anisotropy is regularly arranged, or a film made of a polymer material having refractive index anisotropy is stretched. Etc.

  In the case where the second retardation layer used in this embodiment is formed by regularly arranging rod-shaped compounds having refractive index anisotropy, the rod-shaped compound may be divided into λ / 4 minutes in the second retardation layer. There is no particular limitation as long as a corresponding degree of retardation can be imparted. As such a rod-like compound, the same compounds as those used for the retardation layer can be used. When the second retardation layer is formed by regularly arranging rod-like compounds having refractive index anisotropy, the second retardation layer usually arranges the rod-like compounds regularly. It will be used with an alignment layer that can be used.

  On the other hand, when the second retardation layer used in this embodiment is formed by stretching a film made of a polymer material having refractive index anisotropy, examples of the polymer material include, for example, cycloolefin Based resins. The cycloolefin-based resin is not particularly limited as long as it has a monomer unit composed of a cyclic olefin (cycloolefin). Examples of such a monomer comprising a cyclic olefin include norbornene and polycyclic norbornene monomers. In addition, as the cycloolefin resin used in this embodiment, any of a cycloolefin polymer (COP) and a cycloolefin copolymer (COC) can be suitably used. The cycloolefin-based resin may be a homopolymer of a monomer composed of the cyclic olefin, or may be a copolymer. Specific examples include, for example, Topas (registered trademark) manufactured by Ticona, ARTON (registered trademark) manufactured by JSR, ZEONOR (registered trademark) manufactured by ZEON Corporation, ZEONEX (registered trademark) manufactured by ZEON Corporation, and manufactured by Mitsui Chemicals, Inc. A stretched Apel (registered trademark) or the like can be mentioned.

  The second retardation layer used in this embodiment has an in-plane retardation value corresponding to λ / 4 minutes. Although the specific in-plane retardation value is not particularly limited, it is usually preferably in the range of 100 nm to 160 nm, more preferably in the range of 110 nm to 150 nm, and in the range of 120 nm to 140 nm. More preferably, it is within.

  The second retardation layer used in this aspect is laminated with the retardation layer, that is, the pattern retardation plate is laminated with the second retardation layer on the retardation layer of the pattern retardation film. In addition, it may be a fixed laminated pattern retardation film. This is because it is easy for the slow axis direction of the first retardation region and the slow axis direction of the second retardation layer to be orthogonal or parallel. As an aspect in which the retardation layer and the second retardation layer are laminated, a slow axis direction of the first retardation region in the retardation layer, and a slow axis direction of the second retardation layer However, there is no particular limitation as long as the layers are stacked so as to be orthogonal or parallel, and the layers are stacked so that the retardation layer and the second retardation layer are in direct contact with each other. Alternatively, it may be a mode in which the layers are stacked via other layers.

  Here, as a specific example of the aspect in which the laminated pattern phase difference film is formed by laminating the phase difference layer and the second phase difference layer through another layer, for example, the above-described pattern phase difference film may include the second Although the structure by which the phase difference layer was laminated | stacked and the structure by which the said 2nd phase difference layer was used as a transparent base film in the said pattern phase difference film can be illustrated, it is not this limitation.

2. Polarizing plate The polarizing plate used for this invention is arrange | positioned between a light emission type display and a pattern phase difference plate. The polarizing plate used in the present invention is not particularly limited as long as the transmitted light can be linearly polarized light, and a polarizing plate generally used for a liquid crystal display device can be used.

Such a polarizing plate is not particularly limited as long as it contains at least a polarizer. For example, a polarizing plate and a polarizing plate protective film disposed on both sides of the polarizer are generally used. Is.
Further, the polarizing plate may include a polarizer in which the polarizer is laminated on the pattern retardation plate, that is, a polarizer laminated and fixed on the pattern retardation plate. A mode in which such polarizers are stacked will be described with reference to the drawings. FIG. 22 is an explanatory view showing an example of a pattern phase difference plate (hereinafter sometimes referred to as a pattern phase difference plate with a polarizer) in which the polarizers are laminated. As illustrated in FIG. 22, the patterned retardation film 20 with a polarizer includes a patterned retardation film 20 and a polarizer 21 stacked on the patterned retardation film 20. is there. Here, in FIGS. 22A and 22A ′, the polarizer 21 is laminated on the pattern phase difference plate 20 as the polarizing plate 30 in which the polarizing plate protective film 22 is disposed on both surfaces of the polarizer 21. However, the present invention is not limited to such an embodiment. For example, as shown in FIGS. 22B and 22B, only the polarizer 21 is formed on the transparent film substrate 11 of the pattern retardation plate 20. May be stacked. In order to view a 3D image with a wide viewing angle, the distance between the polarizer 21 and the circularly polarizing layer 13 should be as short as possible. Therefore, in FIG. 22, the layer configuration (a) ′ is used. (A) is preferred, and (b) ′ is preferred over (b). In FIG. 22, reference numeral 24 denotes an adhesive layer.

  The polarizer used in the present invention is not particularly limited as long as the transmitted light can be linearly polarized light, and is generally known as a polarizer used for a polarizing plate for a liquid crystal display device. Things can be used. As such a polarizer, for example, a film made of polyvinyl alcohol is impregnated with iodine, and this is uniaxially stretched to form a complex of polyvinyl alcohol and iodine.

The polarizing plate protective film used in the present invention is not particularly limited as long as it can protect the polarizer and has desired transparency. Among them, the polarizing plate protective film used in the present invention preferably has a transmittance in the visible light region of 80% or more, and more preferably 90% or more.
Here, the transmittance of the polarizing plate protective film can be measured by JIS K7361-1 (Testing method of total light transmittance of plastic-transparent material).

  Examples of the material constituting the polarizing plate protective film include cellulose derivatives, cycloolefin resins, polymethyl methacrylate, polyvinyl alcohol, polyimide, polyarylate, polyethylene terephthalate, polysulfone, polyethersulfone, amorphous polyolefin, and modified acrylic polymers. , Polystyrene, epoxy resin, polycarbonate, polyester and the like. Especially in this invention, it is preferable to use a cellulose derivative, a cycloolefin type resin, or an acrylic resin as said resin material.

  The cellulose derivative is not particularly limited as long as the polarizer has a function of preventing the polarizer from being exposed to moisture in the air and the like and a function of preventing a change in the dimensions of the polarizer. Absent. In particular, in the present invention, it is preferable to use cellulose esters as the cellulose derivative, and among the cellulose esters, it is preferable to use cellulose acylates. This is because cellulose acylates are advantageous in terms of availability because they are widely used industrially.

  As said cellulose acylates, C2-C4 lower fatty acid ester is preferable. The lower fatty acid ester may include only a single lower fatty acid ester such as cellulose acetate, and may include a plurality of fatty acid esters such as cellulose acetate butyrate and cellulose acetate propionate. There may be.

In the present invention, among the above lower fatty acid esters, cellulose acetate can be particularly preferably used. As the cellulose acetate, it is most preferable to use triacetyl cellulose having an average acetylation degree of 57.5 to 62.5% (substitution degree: 2.6 to 3.0). This is because such triacetylcellulose is excellent in optical isotropy.
Here, the degree of acetylation means the amount of bound acetic acid per unit mass of cellulose. The degree of acetylation can be determined by measurement and calculation of the degree of acetylation in ASTM: D-817-91 (test method for cellulose acetate and the like). In addition, the acetylation degree of the triacetyl cellulose which comprises a triacetyl cellulose film can be calculated | required by said method, after removing impurities, such as a plasticizer contained in a film.

  In addition, conventionally, when using the film which consists of a cellulose derivative as a polarizing plate protective film, adhesiveness with the polarizer which consists of polyvinyl alcohol can be improved by saponifying the surface.

  On the other hand, the cycloolefin resin is not particularly limited as long as it is a resin having a monomer unit composed of a cyclic olefin (cycloolefin). Examples of such a monomer comprising a cyclic olefin include norbornene and polycyclic norbornene monomers. In addition, as the cycloolefin resin used in the present invention, either a cycloolefin polymer (COP) or a cycloolefin copolymer (COC) can be suitably used. The cycloolefin-based resin may be a homopolymer of a monomer composed of the cyclic olefin, or may be a copolymer.

In addition, the cycloolefin resin used in the present invention preferably has a saturated water absorption at 23 ° C. of 1% by mass or less, and in particular, has a range of 0.1% by mass to 0.7% by mass. preferable. This is because by using such a cycloolefin-based resin, it is possible to make the polarizing plate less susceptible to changes in optical properties and dimensions due to water absorption.
Here, the saturated water absorption is obtained by immersing in 23 ° C. water for 1 week according to ASTM D570 and measuring the increased weight.

  Specific examples of the polarizing plate protective film made of cycloolefin resin used in the present invention include, for example, Topas (registered trademark) manufactured by Ticona, Arton (registered trademark) manufactured by JSR, ZEONOR (registered trademark) manufactured by Nippon Zeon Co., Ltd. ZEONEX (registered trademark) manufactured by Nippon Zeon Co., Ltd., and Apel (registered trademark) manufactured by Mitsui Chemicals.

  In addition, the acrylic resin is not particularly limited. For example, poly (meth) acrylic acid ester such as polymethyl methacrylate, methyl methacrylate- (meth) acrylic acid copolymer, methyl methacrylate- (meth) acrylic acid. Ester copolymer, methyl methacrylate-acrylic acid ester- (meth) acrylic acid copolymer, (meth) methyl acrylate-styrene copolymer (MS resin etc.), polymer having alicyclic hydrocarbon group ( Examples thereof include methyl methacrylate-cyclohexyl methacrylate copolymer and methyl methacrylate- (meth) acrylate norbornyl copolymer). Preferably, C1-6 alkyl poly (meth) acrylate such as poly (meth) acrylate, particularly preferably methyl methacrylate as a main component (50 to 100% by weight, preferably 70 to 100% by weight). A methyl methacrylate resin is mentioned.

  Specific examples of the polarizing plate protective film made of a cycloolefin resin used in the present invention include, for example, AKRIVIEWER (registered trademark) manufactured by Nippon Shokubai Co., Ltd.

  The thickness of the polarizing plate protective film used in the present invention is not particularly limited, but it is usually preferably in the range of 5 μm to 200 μm, particularly preferably in the range of 15 μm to 150 μm, and further 30 μm to 100 μm. It is preferable to be within the range.

3. Light-emitting display The light-emitting display used in the present invention has a pixel portion formed in a pattern. The light-emitting display used in the present invention is not particularly limited, and a generally known display as a display for a display device can be appropriately selected and used. Specific examples of the light-emitting display used in the present invention include PDP (plasma display), FED (field emission display), and organic EL. These light emitting displays may have a color filter as necessary.

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

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

[Example 1]
A copper plate having a size of 10 cm × 10 cm was prepared, polished in the left-right direction with an abrasive (Kaneyo TM manufactured by Kaneyo Soap Co., Ltd.), and washed. Then, it cut | disconnected so that the space | interval of a stripe might be set to 500 micrometers in the up-down direction with the diamond byte which has the unevenness | corrugation with a pitch of 200 nm produced by FIB process. After that, a UV curable resin (DIC Co., Ltd. made by DIC Co., Ltd.) is applied on the copper plate, and a transparent film (ZEONOR (registered trademark) made by Nippon Zeon Co., Ltd.) is put on and adhered as a transparent film base material thereon. And cured by irradiation with ultraviolet rays.
Next, the said transparent film base material was peeled from the copper plate, and the alignment layer was formed on the said transparent film base material by shaping an uneven | corrugated shape on a transparent film base material. When the cross-sectional shape of the alignment layer was observed with an SEM, irregularities with a pitch of 200 nm and irregular irregularities were observed alternately.
Next, a solution obtained by adding 5% by weight of a photopolymerization initiator (Irgacure 184 manufactured by BASF Corporation) to a solution of a liquid crystalline material represented by the following structural formula (A) dissolved in cyclohexanone at a solid content of 15%, A patterned phase difference film (pattern phase difference plate) was prepared by coating the transparent layer substrate on which the alignment layer was formed with a spin coater, drying at 80 ° C. for 10 minutes, and curing by irradiation with ultraviolet rays.
When the prepared pattern phase difference plate was put in a polarizing plate crossed Nicol and rotated, stripes with a width of 500 μm appeared as a repeating pattern of light, dark, light, and dark, and each time 90 degrees rotated, light and dark Inverted.
When the above pattern phase difference plate is bonded to the left and right lines of the pixel portion of the light emitting display capable of three-dimensional display via a polarizing plate and viewed with right and left circularly polarized glasses, a three-dimensional image is obtained. Looked.
In addition, although the abrasive | polishing agent was used for this rubbing, you may use the cloth for rubbing currently used for LCD manufacture.

[Example 2]
A copper plate having a size of 10 cm × 10 cm was prepared, and the entire surface was cut in the left-right direction with a diamond bit having an unevenness with a pitch of 200 nm produced by FIB processing. After that, it was further cut in the same left-right direction so that the distance between stripes was 500 μm, and the depth was 2 μm every 500 μm. Then, a UV curable resin (Unidic manufactured by DIC Corporation) is applied on the copper plate, and a transparent film (ZEONOR (registered trademark) manufactured by Nippon Zeon Co., Ltd.) is placed on the copper plate, and irradiated with ultraviolet rays. Cured.
Next, the transparent film was peeled from the copper plate, and the uneven shape was shaped into the transparent film. When the cross-sectional shape was observed with an SEM, unevenness with a step difference of 2 μm was alternately observed in a state in which stripes having a width of 500 μm composed of unevenness with a pitch of 200 nm were parallel.
Next, a solution obtained by adding 5% by weight of a photopolymerization initiator (Irgacure 184 manufactured by BASF Corporation) to a liquid crystal material solution represented by the following structural formula (A) dissolved in cyclohexanone at a solid content of 15% is added to the above-mentioned solution. The formed transparent film was applied with a spin coater so that the film thickness upon drying and curing was 1 μm at the stripe convex part and 3 μm at the stripe concave part, dried at 80 ° C. for 10 minutes, and cured by irradiating with ultraviolet rays. In this way, a pattern retardation plate was obtained.
When a sample was put in a polarizing plate crossed Nicol and rotated, a stripe having a width of 500 μm was seen as a repeating pattern of light, dark, light, and dark, and light and dark were reversed each time it was rotated 90 degrees.
When the above pattern phase difference plate is bonded to the left and right lines of the pixel portion of the light emitting display capable of three-dimensional display via a polarizing plate and viewed with right and left circularly polarized glasses, a three-dimensional image is obtained. Looked.

[Example 3]
A copper plate having a size of 10 cm × 10 cm was prepared, and the entire surface was cut in the left-right direction with a diamond bit having an unevenness with a pitch of 200 nm produced by FIB processing. Thereafter, a UV curable resin (Unidic RC23-207 manufactured by DIC Corporation) was applied onto the copper plate, and a primer for improving adhesion (Unidic RC20-075 manufactured by DIC Corporation) was applied thereon. A film (Fuji Film manufactured by Fuji Film Co., Ltd.) was placed and adhered, and irradiated with ultraviolet rays to be cured.
Next, the transparent film was peeled from the copper plate, and the uneven shape was shaped into the transparent film. When the cross-sectional shape was observed with SEM, unevenness with a pitch of 200 nm was observed in the left-right direction.
Next, a solution obtained by adding 5% by weight of a photopolymerization initiator (Irgacure 184 manufactured by BASF Corporation) to a liquid crystal material solution represented by the following structural formula (A) dissolved in cyclohexanone at a solid content of 15% is added to the above-mentioned solution. The formed transparent film was coated with a spin coater so that the film thickness when dried and cured was 2 μm, dried at 80 ° C. for 10 minutes, and cured by irradiating with ultraviolet rays. Further, the liquid crystal layer cured in the left-right direction using an ultraviolet laser was evaporated so that lines with a width of 500 μm could be alternately formed. When a sample was put in a polarizing plate crossed Nicol and observed, stripes having a width of 500 μm were seen in a repeating pattern of light, dark, light and dark. The pattern phase difference plate is bonded to the left and right lines of the pixel portion of the light emitting display capable of three-dimensional display via a polarizing plate so as to have the configuration shown in FIG. I saw a 3D image.

[Example 4]
A copper plate having a size of 10 cm × 10 cm was prepared, polished with a polishing agent (Kaneyon TM manufactured by Kaneyo Soap Co., Ltd.) in an oblique 45 ° direction, and washed. Then, it cut | disconnected so that the space | interval of a stripe might be set to 500 micrometers in the left-right direction with the diamond tool which has the unevenness | corrugation with a pitch of 200 nm produced by FIB process. Thereafter, a UV curable resin (Unidic RC23-207 manufactured by DIC Corporation) was applied onto the copper plate, and a primer for improving adhesion (Unidic RC20-075 manufactured by DIC Corporation) was applied thereon. As a film base material, a transparent film (Fujitack manufactured by Fuji Film Co., Ltd.) was placed and adhered, and cured by irradiation with ultraviolet rays.
Next, the said transparent film base material was peeled from the copper plate, and the alignment layer was formed on the said transparent film base material by shaping an uneven | corrugated shape on a transparent film base material. When the cross-sectional shape of the alignment layer was observed with an SEM, 200 nm pitch irregularities and irregular fine irregularities were alternately observed.
Next, a solution obtained by adding 5% by weight of a photopolymerization initiator (Irgacure 184 manufactured by BASF Corporation) to a solution of a liquid crystalline material represented by the following structural formula (A) dissolved in cyclohexanone at a solid content of 15%, By coating the transparent film substrate on which the alignment layer is formed with a spin coater so that the film thickness when dried is 2 μm, drying at 80 ° C. for 10 minutes, and curing by irradiating with ultraviolet rays, pattern retardation A film was prepared. The retardation of the retardation layer was equivalent to λ / 2 at 260 nm.
When the produced pattern phase difference film was put in a polarizing plate crossed Nicol and rotated, stripes having a width of 500 μm appeared to be a repetitive pattern, and light and dark were reversed each time the film was rotated 90 degrees. The pattern phase difference plate is bonded to the left and right lines of the pixel portion of the light emitting display capable of three-dimensional display via a polarizing plate so as to have the configuration shown in FIG. I saw a 3D image.
In this embodiment, an abrasive is used for rubbing, but a rubbing cloth used in LCD manufacturing may be used.

DESCRIPTION OF SYMBOLS 1,11 ... Transparent film base material 2,12 ... Orientation layer 3 ... Phase difference layer 4 ... 2nd phase difference layer 10 ... Pattern phase difference film 13 ... Circularly polarizing layer 13A ... 1st circular polarizing region 13B ... 2nd Circular polarization region 14 ... Antireflection layer or anti-glare layer 20 ... Pattern retardation plate 21 ... Polarizer 22 ... Polarizing plate protective film 24 ... Adhesive layer 30 ... Polarizing plate 31a ... Pixel part 40 ... Light emitting display 50 ... Light emitting display apparatus

Claims (10)

A light-emitting display in which a pixel portion is formed in a pattern; and
A polarizing plate disposed on the light emitting display;
Circular polarization comprising a transparent film substrate, an alignment layer formed on the transparent film substrate, and a rod-shaped compound having refractive index anisotropy formed on the alignment layer, disposed on the polarizing plate A pattern retardation plate having a layer;
A light emitting display device comprising:
The angle formed by the polarization axis direction of the polarizing plate and the fast axis direction or the slow axis direction of the first circular polarization region and the second circular polarization region included in the circular polarization layer is 45 °,
Moreover the pattern in which the pixel portion is formed in the light emitting display, and a pattern in which the first circularly polarizing region and the second circularly polarizing regions are formed, Ri is correspondence near,
The pattern retardation plate contains the transparent film substrate, an alignment layer formed on the transparent film substrate, and a rod-shaped compound having a refractive index anisotropy formed on the surface of the alignment layer. A retardation layer, and a pattern retardation film having
The alignment layer has a first alignment region in which fine irregularities are formed so that the rod-like compound can be arranged in one direction, and the rod-like compound is arranged in a direction orthogonal to the arrangement direction in the first alignment region. A second alignment region having fine irregularities formed so as to be arranged in a pattern on the surface, and at least one surface of the first alignment region or the second alignment region The formed fine uneven shape is a stripe-like line uneven structure,
The first circular polarization region and the second circular polarization region are a retardation layer formed on the first alignment region or a retardation layer formed on the second alignment region ,
Each of the first alignment region and the second alignment region includes an alignment layer having a different thickness corresponding to each color pattern of the light emitting display, and the retardation layer corresponds to the alignment layer. A light-emitting display device having different thicknesses . 2. The light-emitting display device according to claim 1 , wherein each of the fine uneven shapes formed on the surfaces of the first alignment region and the second alignment region has a stripe-like line uneven structure. . The light-emitting display device according to claim 1, wherein an in-plane retardation value of the retardation layer corresponds to λ / 4 minutes. A light-emitting display in which a pixel portion is formed in a pattern; and
A polarizing plate disposed on the light emitting display;
Circular polarization comprising a transparent film substrate, an alignment layer formed on the transparent film substrate, and a rod-shaped compound having refractive index anisotropy formed on the alignment layer, disposed on the polarizing plate A pattern retardation plate having a layer;
A light emitting display device comprising:
The angle formed by the polarization axis direction of the polarizing plate and the fast axis direction or the slow axis direction of the first circular polarization region and the second circular polarization region included in the circular polarization layer is 45 °,
Further, the pattern in which the pixel portion is formed in the light emitting display and the pattern in which the first circular polarization region and the second circular polarization region are formed are in a correspondence relationship,
The patterned phase difference plate is formed on the transparent film substrate, and a thick film region having a large thickness and a thin film region having a smaller thickness than the thick film region are formed in a pattern on the surface, and the alignment A retardation layer formed on the surface of the layer and containing a rod-shaped compound having a refractive index anisotropy, and a pattern retardation film having
A fine concavo-convex shape is formed on the surface so that the rod-like compound can be arranged in the same direction in the thick film region and the thin film region,
Said first circular polarizing region and the second circularly polarizing regions is emitting light you wherein a retardation layer formed on the thick film region the phase difference formed on layer or on the thin film region Type display device. The difference between the in-plane retardation value of the retardation layer formed on the thick film region and the in-plane retardation value of the retardation layer formed on the thin film region corresponds to λ / 2 minutes. Yes,
And the in-plane retardation value of the retardation layer formed on the thick film region corresponds to λ / 4, so that the in-plane retardation of the retardation layer formed on the thick film region. value corresponds to a lambda / 4 min, and wherein the in-plane retardation value of the retardation layer formed on the thin film region is equivalent to λ / 4 + λ / 2 minutes, according to claim 4 Light-emitting display device. 6. The light emitting type according to claim 4 , wherein at least one of the fine concavo-convex shapes formed on a surface of the thick film region or the thin film region is a stripe-like line concavo-convex structure. Display device. The light emitting display device according to claim 6 , wherein the fine unevenness formed on the surface of the thick film region and the thin film region is a stripe-like line uneven structure. Wherein the pattern of the first circularly polarizing region and the second circularly polarizing regions are formed is formed in a band-shaped patterns with each other, one of claims 1 to 7 The light emitting display device according to claim. The antireflection layer and / or the antiglare layer are formed on the surface opposite to the surface on which the alignment layer is formed of the transparent film base material, according to any one of claims 1 to 8 . The light-emitting display device according to claim 1.   The light emitting display device according to any one of claims 1 to 9, wherein the alignment layer is made of a cured ultraviolet curable resin.