JP6719591B2 - Display member - Google Patents

Description

The present invention relates to a novel display member that displays images such as pictures and characters.

Surfaces such as transparent doors, transparent windows, transparent walls, and transparent partitions for the purpose of decoration, improvement of design, improvement of entertainment, advertisement, notification, advertisement, and provision of various information. In addition, various display members for displaying images such as pictures and letters using transparent or opaque inks and films have been proposed.

For example, in Patent Document 1, a semi-transparent or opaque colored or colorless pattern film of an arbitrary shape is formed on one surface of a transparent glass plate, and the other surface is faced with the pattern film to form a wider area. A decorative glass plate having a semi-transparent reflection film is described.
According to this decorative glass plate, a pattern formed on one surface of the transparent glass is projected as a shadow on the other surface, so that a display with a rich stereoscopic effect can be performed.

Patent Document 2 discloses a display sheet in which a predetermined portion of a sheet material is provided with a light-shielding portion of a predetermined pattern that regulates light transmission, and a light-transmitting portion of a predetermined pattern is formed transparent or punched in a predetermined region of the light-shielding portion. Is listed.
When this display sheet is used as a window glass of a subway, for example, the pattern of the light transmitting portion in the light shielding portion is displayed every time light passes through the car window, so that it is possible to display an image that is easily noticeable. it can.

Japanese Utility Model Publication No. 3-45932 JP-A-6-12017

Starting with the display members described in these patent documents, the display members usually display images using coloring materials such as dyes and pigments such as ink and colored films.

An object of the present invention is to provide a new display member that displays an image without using coloring materials such as dyes and pigments.

In order to achieve this object, the display member of the present invention has a pattern area formed by a region having a plurality of slow axis directions in the same plane as the first polarizing plate and having the same slow axis directions. A first laminated body including a first patterned retardation film provided with, and
A second polarizing plate; and a second patterned retardation film having a plurality of slow axis directions in the same plane and provided with a pattern region formed in a region where the slow axis directions coincide with each other. A second stack,
The shape of the pattern region of the first patterned retardation film of the first laminate and the shape of the pattern region of the second patterned retardation film of the second laminate are different from each other. I will provide a.

In such a display member of the present invention, in the state where the first laminate and the second laminate are laminated, the pattern region of the first pattern retardation film of the first laminate and the second laminate It is preferable that the second pattern retardation film has a plurality of overlapping regions formed to overlap with each other, and the overlapping regions have a plurality of types having different retardation values.
Further, it is preferable to have an overlapping region having a retardation value of 0 nm±10 nm at 550 nm as the overlapping region.
Further, it is preferable that the overlapping region has an overlapping region in which the retardation value at 550 nm is 260 nm±40 nm.
Further, it is preferable that the overlapping region has an overlapping region having a retardation value of 400 nm or more at 550 nm.
Further, in a state where the first laminated body and the second laminated body are laminated, the boundary between the pattern regions of the first pattern retardation film of the first laminated body and the second pattern of the second laminated body. It is preferable that the boundary of the pattern region of the retardation film intersects at a plurality of points.
Further, it is preferable that the first laminated body and the second laminated body are laminated with a gap of 1 mm or more.
Further, it is preferable to have a moving means for relatively moving the first laminated body and the second laminated body in the plane direction.
Further, the first patterned retardation film of the first laminate has two types of pattern regions, and the slow axes of the two types of pattern regions are orthogonal to each other, and the second pattern of the second laminate is It is preferable that the patterned retardation film has two types of pattern regions and that the slow axes of the two types of pattern regions are orthogonal to each other.
Further, the first laminated body includes a first transparent support on the surface of the first patterned retardation film opposite to the first polarizing plate, and the second laminated body includes the second pattern. It is preferable to provide a second transparent support on the surface of the retardation film opposite to the second polarizing plate.
In addition, the first transparent support of the first laminate and the second transparent support of the second laminate have in-plane retardation, and the first laminate and the second laminate It is preferable that, in a state where the body is laminated, the slow axis of the first transparent support of the first laminate and the slow axis of the second transparent support of the second laminate are orthogonal to each other.
Further, with the transmission axis of the first polarizing plate of the first laminated body and the transmission axis of the second polarizing plate of the second laminated body orthogonal to each other, the first laminated body and the second laminated body Are preferably laminated.
Further, with the transmission axis of the first polarizing plate of the first laminated body and the transmission axis of the second polarizing plate of the second laminated body being parallel to each other, the first laminated body and the second laminated body Are preferably laminated.
In addition, the first laminate has a plurality of slow axis directions in the same plane at a position sandwiching the first polarizing plate together with the first patterned retardation film, and in a region where the slow axis directions coincide with each other. It has a third patterned retardation film provided with the formed pattern region, and a plurality of second laminated bodies are provided in the same plane at positions sandwiching the second polarizing plate together with the second patterned retardation film. And a fourth pattern retardation film having a pattern region formed in a region in which the slow axis directions coincide with each other, and the third pattern retardation of the first laminate. It is preferable that the shape of the pattern area of the film and the shape of the pattern area of the fourth patterned retardation film of the second laminate be different from each other.
Furthermore, in the first laminate, the shape of the pattern region of the first patterned retardation film and the shape of the pattern region of the third patterned retardation film are different from each other, and in the second laminated body, It is preferable that the shape of the pattern area of the second patterned retardation film and the shape of the pattern area of the fourth patterned retardation film are different from each other.

According to the present invention, there is provided a new display member that displays an image without using a coloring material such as a dye or a pigment.

FIG. 1 is a schematic side view of an example of the display member of the present invention. FIG. 2 is an exploded perspective view conceptually showing the display member shown in FIG. FIG. 3 is a conceptual diagram for explaining the pattern area of the display member shown in FIG. FIG. 4 is a diagram conceptually showing an image displayed by the display member shown in FIG. 1. FIG. 5 is a conceptual diagram for explaining an image displayed by the display member shown in FIG. FIG. 6 is a conceptual diagram for explaining an image displayed by the display member shown in FIG. FIG. 7 is a conceptual diagram for explaining an image displayed by the display member shown in FIG. FIG. 8 is a schematic side view of another example of the display member of the present invention. 9 is an exploded perspective view conceptually showing the display member shown in FIG. FIG. 10 is a diagram conceptually showing an image displayed by the display member shown in FIG. FIG. 11 is a conceptual diagram for explaining an image displayed by the display member shown in FIG. FIG. 12 is a view conceptually showing a mask used for manufacturing the display member of the present invention. FIG. 13 is a view conceptually showing a mask used for manufacturing the display member of the present invention.

Hereinafter, the display member of the present invention will be described in detail with reference to the preferred embodiments shown in the accompanying drawings.

In addition, below, "-" which shows a numerical range includes the numerical value described on both sides. For example, when ε is a numerical value α to a numerical value β, the range of ε is a range including the numerical value α and the numerical value β, and α≦ε≦β in terms of mathematical symbols.
Angles such as “45°”, “parallel”, “vertical” and “orthogonal” mean that the difference from the strict angle is within 5° unless otherwise specified. The difference from the strict angle is preferably less than 4°, more preferably less than 3°.
Further, the term “identical” includes an error range generally accepted in the technical field. Further, “all”, “all”, “entire surface” and the like include not only 100% but also an error range generally accepted in the technical field, for example, 99% or more, 95% or more, or The case where it is 90% or more is included.
In the present specification, the “slow axis” means the direction in which the refractive index becomes maximum in the plane.

In the present specification, Re(λ) represents in-plane retardation at the wavelength λ. In addition, the measurement wavelength is 550 nm when the measurement wavelength is not particularly described for the in-plane retardation value Re and the refractive index.
In the present specification, Re(λ) is a value measured by a wavelength λ in AxoScan OPMF-1 (manufactured by Optoscience).
By inputting the average refractive index ((Nx+Ny+Nz)/3) and the film thickness (d (μm)) in AxoScan,
Slow axis direction (°) and Re(λ)=R0(λ)
Is calculated.
Although R0(λ) is displayed as a numerical value calculated by AxoScan, it means Re(λ).

In this specification, the refractive indices Nx, Ny, and Nz are measured using an Abbe refractometer (NAR-4T manufactured by Atago Co., Ltd.) and a sodium lamp (λ=589 nm) as a light source. When measuring the wavelength dependence, it can be measured with a multi-wavelength Abbe refractometer DR-M2 (manufactured by Atago) in combination with an interference filter.
In the above measurement, as the assumed value of the average refractive index, the values in Polymer Handbook (JOHN WILEY & SONS, INC) and catalogs of various optical films can be used.
Examples of the average refractive index values of main optical films are as follows: cellulose acylate (1.48), cycloolefin polymer (1.52), polycarbonate (1.59), polymethylmethacrylate (1.49), It is polystyrene (1.59).

In the present specification, the term “transparent” specifically means that the non-polarized light transmittance (omnidirectional transmittance) at a wavelength of 380 to 780 nm is 50% or more, preferably 70% or more, and 85% or more. It is more preferable.

A feature of the present invention is that a plurality of slow axis directions are provided in the same plane, and a pattern area is formed corresponding to an image to be displayed (a pattern, characters, etc.), which is formed in an area where the directions of the slow axes coincide with each other. A plurality of the obtained patterned retardation films are used, and the shape of the pattern region of each patterned retardation film is different.

FIG. 1 shows a schematic side view of the display member of the present invention, and FIG. 2 shows a schematic perspective view of the display member shown in FIG. 1 in an exploded state. In the present invention, the side surface is a surface of the display member of the present invention as seen from the surface direction of the main surface of the polarizing plate and the patterned retardation film or further the support, and the front surface is orthogonal to the main surface. It is the surface seen from the direction.
The main surface is the maximum surface of a sheet-shaped material (film-shaped material, plate-shaped material).

As shown in FIGS. 1 and 2, the display member 10 of the present invention has a first stacked body 12 and a second stacked body 14.
The first stacked body 12 is a rectangular plate-shaped object, and includes a first support 18, a first patterned retardation film 20, and a first polarizing plate 24. On the other hand, the second laminated body 14 is the same rectangular plate-like material as the first laminated body 12, and has the second support 28, the second pattern retardation film 30, and the second polarizing plate 32.

In the display member 10, the first laminated body 12 is the first laminated body of the invention, the second laminated body 14 is the second laminated body of the invention, and the first support 18 is the first transparent body of the invention. As the support, the first patterned retardation film 20 is the first patterned retardation film of the present invention, the first polarizing plate 24 is the first polarizing plate of the present invention, and the second support 28 is the first polarizing plate of the present invention. The second patterned retardation film 30 corresponds to the second patterned retardation film in the present invention, and the second polarizing plate 32 corresponds to the second polarizing plate in the present invention.

In the first laminate 12, the first pattern retardation film 20 is laminated on one surface of the first support 18, and the first polarizing plate 24 is laminated on the surface of the first pattern retardation film 20. It That is, in the first laminate 12, the first polarizing plate 24 is provided on one surface of the first pattern retardation film 20, and the surface of the first pattern retardation film 20 on which the first polarizing plate 24 is provided is The first support 18 is provided on the opposite surface, and the first pattern 18 and the first polarizing plate 24 sandwich the first patterned retardation film 20.
On the other hand, in the second laminate 14, the second pattern retardation film 30 is laminated on one surface of the second support 28, and the second polarizing plate 32 is provided on the surface of the second pattern retardation film 30. Stacked. That is, in the second laminate 14, the second polarizing plate 32 is provided on one surface of the second pattern retardation film 30, and the second polarizing plate 32 of the second pattern retardation film 30 is not provided. The second support 28 is provided on the opposite surface, and the second patterned retardation film 30 is sandwiched between the second support 28 and the second polarizing plate 32.

In the following description, for convenience, the vertical direction in FIGS. 1 and 2 is the y direction (90°). A direction that coincides with the surface directions of the first stacked body 12 and the second stacked body 14 (support, retardation film, polarizing plate) and is orthogonal to the y direction is defined as the x direction (0°). Furthermore, the direction orthogonal to the x direction and the y direction is the z direction. That is, in FIG. 1, the x direction is the direction perpendicular to the paper surface, and the z direction is the lateral direction in the figure.
Therefore, the first support 18, the first patterned retardation film 20 and the first polarizing plate 24 of the first stacked body 12, and the second support 28, the second patterned retardation film 30 and the second supported body 28 of the second stacked body 14. The second polarizing plates 32 are both stacked in the z direction. The first laminated body 12 and the second laminated body 14 are also laminated in the z direction with the polarizing plate as the outer surface.
Regarding the above points, the display device 80 of the second aspect described later is also the same.

In the display member 10, the first laminated body 12 and the second laminated body 14 are laminated (when viewed from the z direction) so as to be in contact with each other or separated from each other with their polarizing plates being outside. That is, in the display member 10, the first laminated body 12 is so arranged that the first patterned retardation film 20 and the second patterned retardation film 30 are located between the first polarizing plate 24 and the second polarizing plate 32. And the second stacked body 14 are stacked.
Further, the first laminated body 12 and the second laminated body 14 deviate in a plane direction (xy direction) when displaying a completed image (an image to be carried (an image finally intended)). Instead, they are laminated so that the outer circumferences in the plane direction coincide with each other. In the following description, this state is also referred to as "completely overlapping and stacking".

The first support 18 of the first stacked body 12 is used as a preferable mode for supporting the first patterned retardation film 20 and the first polarizing plate 24. The second support 28 of the second stacked body 14 is used as a preferable mode for supporting the second patterned retardation film 30 and the second polarizing plate 32, and has no optical action. Preferably not.
Note that, in FIG. 2, the broken lines shown by the first support 18 and the second support 28 are slow axes of the first support 18 and the second support 28. The first support 18 and the second support 28 are transparent resin films formed by stretching, for example, triacetyl cellulose (TAC), and have a slight in-plane retardation.
Therefore, as shown in FIG. 2, it is preferable to arrange the first support 18 and the second support 28 so that their slow axes are orthogonal to each other so as to cancel the phase difference between them. As a result, it is possible to prevent inconveniences such as the occurrence of tint in the image displayed by the display member 10 due to the phase difference of the support.

As shown in FIG. 2, the first polarizing plate 24 of the first stacked body 12 has a transmission axis (polarization axis) of 45° with respect to the x direction (y direction) (arrow t1). Hereinafter, for convenience, the direction of the transmission axis of the first polarizing plate 24 is also referred to as −45°.
The second polarizing plate 32 of the second stacked body 14 also has a slow axis of 45° with respect to the x direction (y direction) (arrow t2). Here, as indicated by arrows t1 and t2, the transmission axis of the first polarizing plate 24 and the transmission axis of the second polarizing plate are orthogonal to each other. That is, the directions of the transmission axes of the first polarizing plate 24 and the second polarizing plate are different from each other by 90°. Hereinafter, for convenience, the direction of the transmission axis of the second polarizing plate 32 is also referred to as +45°.

The first patterned retardation film 20 and the second patterned retardation film 30 are both λ/4 plates.
As described above, the first patterned retardation film 20 and the second patterned retardation film 30 have a plurality of slow axis directions in the same plane, and are formed in regions where the slow axis directions are the same. A pattern area corresponding to an image such as a picture or a character to be displayed is provided. As will be described later, the pattern regions provided in the first pattern retardation film 20 and the second pattern retardation film 30 are pattern regions 20x-1 to 20x-3, 20y-1 to 20y-3, 30x-1 and 30y-. 1 to 30y-3.
Further, the first pattern retardation film 20 and the second pattern retardation film 30 have different shapes of pattern regions.

The pattern regions of the first patterned retardation film 20 and the second patterned retardation film 30 are both λ/4 retardation regions regardless of the direction of the slow axis.
The λ/4 retardation region for the light transmitted through the polarizing plate is a wavelength within the control wavelength region, preferably a length of ¼ of the center wavelength of the control wavelength region, or “center wavelength×n±center wavelength of 1 /4 (n is 0 or an integer greater than or equal to 1)” is intended to be a region having an in-plane retardation. For example, when the center wavelength of the control wavelength range is 1000 nm, a retardation plate having a retardation of 250 nm, 750 nm, 1250 nm, 1750 nm or the like can be used as the λ/4 retardation plate.
Each birefringent material used for the retardation film (retardation film) has its own wavelength dispersion characteristic. When a normal forward wavelength dispersion material is used, a λ/4 retardation is obtained at a specific wavelength. By doing so, the phase difference becomes λ/4 or more on the shorter wavelength side than that wavelength and λ/4 or less on the long wavelength side. Therefore, in order to show the effect of the λ/4 phase difference on average in a certain wavelength range, it is necessary to set the value in consideration of the wavelength of the light source and the human visual sensitivity. Further, by intentionally utilizing the wavelength dispersion characteristic, it is possible to block only the light of a specific wavelength and change the tint of the transmitted light. On the other hand, when it is desired to suppress the change in color, it is preferable to use a retardation material having a reverse wavelength dispersion.
More specifically, for example, when the light transmitted through the polarizing plate is light in the visible light region, Re(550), which is the value of the in-plane retardation of the pattern region measured at the measurement wavelength of 550 nm, is 100 nm≦Re( 550)≦160 nm is preferable, 110 nm≦Re(550)≦150 nm is more preferable, and 115 nm≦Re(550)≦145 nm is further preferable.

The image of the pattern region of the first patterned retardation film 20 of the first stacked body 12 is an image of a sphere viewed in a plan view.
Specifically, the image by the pattern area of the first pattern retardation film 20 is, as conceptually shown on the left side of FIG. 3, a sphere formed by a plane parallel to the y direction in the drawing and passing through the center of the sphere. It is an image that looks like it is cut at multiple points in the direction.
In the first patterned retardation film 20, pattern regions 20x-1 to 20x-3 having a slow axis (arrow a1x) in the x direction and pattern regions 20y-1 having a slow axis (arrow a1y) in the y direction. .About.20y-3 are formed. That is, the slow axes of the pattern regions 20x-1 to 20x-3 and the pattern regions 20y-1 to 20y-3 are orthogonal to each other. In other words, the pattern regions 20x-1 to 20x-3 and the pattern regions 20y-1 to 20y-3 differ in the direction of the slow axis by 90°. In addition, in the first pattern retardation film 20, the slow axes of the adjacent pattern regions are orthogonal to each other.

The image of the pattern region of the second patterned retardation film 30 of the second stacked body 14 is also an image of the sphere viewed in a plan view.
Specifically, the image by the pattern area of the second pattern retardation film 30 is, as conceptually shown on the right side of FIG. 3, a sphere formed by a plane parallel to the x direction at a plurality of positions in the y direction. It looks like a cut image.
In the second patterned retardation film 30, a pattern region 30x-1 having a slow axis (arrow a2x) in the x-axis direction and pattern regions 20y-1 to 20y- having a slow axis (arrow a1y) in the y-direction. And 3 are formed. As shown in FIG. 2, in the second patterned retardation film 30, all the regions other than the pattern regions 20y-1 to 20y-3 are the pattern regions 30x-1. That is, the slow axes of the pattern region 30x-1 and the pattern regions 30y-1 to 30y-3 are orthogonal to each other. Also, in the second pattern retardation film 30, the slow axes of the adjacent pattern regions are orthogonal to each other.

In the display member 10, the slow axes of the two types of pattern regions in the first patterned retardation film 20 and the second patterned retardation film 30 are orthogonal to each other, but the present invention is not limited to this. That is, in the present invention, the patterned retardation film has a plurality of slow axis directions in the same plane, and different patterns as long as it has a plurality of types of pattern regions in which the directions of the slow axes are the same. Various angles can be used as the angle formed by the slow axis of the region.
In the present invention, when two types of pattern regions having different slow axis directions are provided, such as the first pattern retardation film 20 and the second pattern retardation film 30 in the illustrated example, both pattern regions are provided. The angle formed by the slow axis is preferably 70 to 110°, more preferably 80 to 100°, and even more preferably 90°, that is, orthogonal to each other.

Here, as described above, the first polarizing plate 24 and the second polarizing plate 32 have the transmission axes (arrows t1 and t2) of 45° (−45° and +45°) with respect to the x direction (y direction). The transmission axis of the first polarizing plate 24 and the transmission axis of the second polarizing plate 32 are orthogonal to each other.
The first pattern retardation film 20 and the second pattern retardation film 30 are both λ/4 plates. The first patterned retardation film 20 has pattern regions 20x-1 to 20x-3 having a slow axis in the x direction and pattern regions 20y-1 to 20y-3 having a slow axis in the y direction. On the other hand, the second patterned retardation film 30 has a pattern region 30x-1 having a slow axis in the x direction and pattern regions 30y-1 to 30y-3. As shown in FIG. 3, the first pattern retardation film 20 and the second pattern retardation film 30 have different pattern region shapes.
Furthermore, in the state where the first laminated body 12 and the second laminated body 14 are laminated, the first patterned retardation film 20 and the second patterned retardation film 30 are sandwiched between the first polarizing plate 24 and the second polarizing plate 32. Has been. In other words, in the display member 10 that is a laminated body, the first patterned retardation film 20 and the second patterned retardation film 30 are located inside the first polarizing plate 24 and the second polarizing plate 32.

Therefore, when the display member 10 is observed in a state where the first stacked body 12 and the second stacked body are stacked (overlapped), light is shielded or transmitted depending on the transmitted region, whereby various images are displayed. To be done. Further, when the display member 10 is observed in a state where the first stacked body 12 and the second stacked body 14 are completely overlapped and stacked, a checkered sphere conceptually shown in FIG. 4 is displayed.
As described above, stacking means a state of overlapping or overlapping when viewed from the z direction, that is, overlapping means a state of overlapping when viewed from the z direction.

For example, when the display member 10 is observed in a state where the first stacked body 12 and the second stacked body 14 are completely overlapped and stacked, light is transmitted through the first polarizing plate 24 and becomes linearly polarized light of −45°. Become.

A part of the -45° linearly polarized light is incident on, for example, an overlapping region where the pattern region 20y-1 of the first pattern retardation film 20 and the pattern region 30y-1 of the second pattern retardation film 30 overlap. .. As described above, both the pattern region 20y-1 and the pattern region 30y-1 are λ/4 phase difference regions, and the slow axes (arrows a1y and a2y) are both in the y direction. Therefore, the overlapping area (overlapping pattern area) is “λ/4 retardation area+λ/4 retardation area”, and linear polarization of −45° results in the λ/2 retardation area (λ/2 plate). ), the polarization direction is rotated by 90° and becomes +45° linearly polarized light.
The +45° linearly polarized light that has passed through the pattern region 20y-1 of the first patterned retardation film 20 and the pattern region 30y-1 of the second patterned retardation film 30 then enters the second polarizing plate 32. Here, the second polarizing plate 32 is a polarizing plate having a transmission axis (arrow t2 (+45°)) orthogonal to the transmission axis (arrow t1 (−45°)) of the first polarizing plate 24. Therefore, the +45° linearly polarized light that has entered the second polarizing plate 32 passes through the second polarizing plate 32, and as shown in FIG. 4, this portion becomes a transparent display.

On the other hand, another part of the linearly polarized light of −45° is transmitted through the first polarizing plate 24 and then, for example, the pattern region 20x−3 of the first pattern retardation film 20 and the pattern of the second pattern retardation film 30. It is incident on the overlapping region where the region 30y-1 overlaps. As described above, the pattern region 20x-3 and the pattern region 30y-1 are both λ/4 phase difference regions, but the slow axes (arrows a1x and a2y) are orthogonal to each other. Therefore, the overlapping area (overlapping pattern area) is “λ/4 phase difference area+(−λ/4 phase difference area)”, and the linearly polarized light of −45° is transmitted through an area where nothing optically exists. It becomes the same as the case. That is, the light transmitted through the pattern region 20x-3 and the pattern region 30y-1 is linearly polarized light of −45°, which is the same as the linearly polarized light transmitted through the first polarizing plate 24 (transmission axis −45° (arrow t1)). is there.
The linearly polarized light of −45° that has passed through the pattern region 20x-3 of the first patterned retardation film 20 and the pattern region 30y-1 of the second patterned retardation film 30 is also incident on the second polarizing plate 32. As described above, the second polarizing plate 32 is a polarizing plate having a transmission axis (arrow t2 (+45°)) orthogonal to the transmission axis (arrow t1 (−45°)) of the first polarizing plate 24. Therefore, the −45° linearly polarized light that has entered the second polarizing plate 32 is shielded by the second polarizing plate 32, and this portion is displayed in black as shown in FIG.

Similarly, for example, two −45° linearly polarized lights incident on a region where the pattern region 20y-2 of the first pattern retardation film 20 and the pattern region 30y-2 of the second pattern retardation film 30 overlap each other. Passing through the λ/2 retardation region consisting of the λ/4 retardation region, the polarization direction becomes 90° with respect to the transmission axis (−45°) of the first polarizing plate 24 to become +45° linearly polarized light, The light is transmitted through the second polarizing plate 32 having a transmission axis of +45°, and a transparent display is obtained as shown in FIG.
Further, for example, linearly polarized light of −45° which is incident on a region where the pattern region 20x-2 of the first pattern retardation film 20 and the pattern region 30y-2 of the second pattern retardation film 30 overlap each other, both linear pattern regions. Is a linearly polarized light of −45° even when transmitted through, and is therefore shielded by the second polarizing plate 32 having a transmission axis of +45°, resulting in a black display as shown in FIG.

Thus, by stacking the first stacked body 12 and the second stacked body 14 so as to completely overlap each other, an image of a checkered sphere as shown in FIG. 4 is displayed.

That is, according to the present invention, having a plurality of slow axis directions in the same plane, the pattern area formed in the area where the directions of the slow axes are coincident with each other, and a pattern area corresponding to an image to be displayed are provided, and By using a plurality of pattern retardation films each having a different pattern region shape, a completely new display member capable of displaying various images can be provided.

Preferably, as shown in FIGS. 1 to 3, by overlapping the first laminated body 12 and the second laminated body 14, the pattern region of the first pattern retardation film 20 and the second pattern retardation film 30 are formed. A plurality of overlapping regions overlapping the pattern region are formed, and as the overlapping regions, a plurality of types of overlapping regions having different retardation values are formed.
In the present invention, the overlapping region is a region in which one pattern region of the first pattern retardation film 20 and one pattern region of the second pattern retardation film 30 overlap in the z direction. Is. In other words, the region overlapping in the z direction is a region overlapping in the z direction.
In addition, the retardation value of the overlapping region means that one pattern region of the first pattern retardation film 20 and one pattern region of the second pattern retardation film 30, which overlap in the z direction, form one retardation film. The intended retardation value is considered.
Specifically, when the first stacked body 12 and the second stacked body 14 are overlapped with each other, the overlapping pattern area of the first pattern retardation film 20 and the pattern area of the second pattern retardation film 30 are delayed. By forming a region in which the direction of the phase axis is in the same direction and an overlapping region in which the direction of the slow axis is different, images such as patterns and characters are displayed.

More preferably, as the overlapping region in which the pattern region of the first pattern retardation film 20 and the pattern region of the second pattern retardation film 30 overlap, an overlapping region having a retardation value of 0 nm±10 nm and 260 nm±40 nm. At least one of the overlapping regions is formed.
Specifically, as the overlapping region formed by overlapping the first stacked body 12 and the second stacked body 14, a pattern region in which the slow axis in the first pattern retardation film 20 is the x direction (arrow a1x). And the slow axis of the second patterned retardation film 30 overlaps the pattern region in the y direction (arrow a2y), and the slow axis of the first patterned retardation film 20 is in the y direction (arrow a1y). When the pattern region and the pattern region of the second pattern retardation film 30 in which the slow axis is in the x direction (arrow a2x) overlap, an overlap region having a retardation value of 0 nm±10 nm is formed. This overlapping region is the above-described region that becomes black due to light blocking.
Further, as another overlapping area formed by overlapping the first stacked body 12 and the second stacked body 14, a pattern area in which the slow axis in the first pattern retardation film 20 is in the x direction (arrow a1x) , When the slow axis of the second patterned retardation film 30 overlaps the pattern region in the x direction (arrow a2x), and when the slow axis of the first patterned retardation film 20 is in the y direction (arrow a1y). When the region overlaps with the pattern region in which the slow axis of the second patterned retardation film 30 is in the y direction (arrow a2y), an overlap region having a retardation value of 260 nm±40 nm is formed. This overlapping area is the transparent area described above.
With such a configuration, it is possible to suitably block and transmit light and display a high-quality image.

Further, as another overlapping area formed by overlapping the first stacked body 12 and the second stacked body 14, a pattern area in which the slow axis in the first pattern retardation film 20 is in the x direction (arrow a1x) , When the slow axis of the second patterned retardation film 30 overlaps the pattern region in the x direction (arrow a2x), and when the slow axis of the first patterned retardation film 20 is in the y direction (arrow a1y). When the region and the pattern region of the second patterned retardation film 30 in which the slow axis is in the y direction (arrow a2y) overlap, an overlapping region having a retardation value of 400 nm or more may be formed.
When the first stacked body 12 and the second stacked body 14 are overlapped with each other, by forming an overlapping region having such a retardation value, it is possible to add a tint to an image to be displayed and display a color image. It also becomes possible.

Forming a plurality of types of overlapping regions having different retardation values in a state in which the first stacked body 12 and the second stacked body 14 are overlapped, more preferably, the pattern area of the first pattern retardation film 20 and the second pattern. The pattern area of the retardation film 30 intersects the boundary of the pattern area at a plurality of points, and two or more kinds of overlapping areas, more specifically, four or more kinds of overlapping areas are provided around the intersection of the boundaries of the pattern areas. Is to form.

As an example, the intersection of the boundary between the pattern regions 20x-2 and 20x-3 of the first pattern retardation film 20 and the boundary between the pattern regions 30x-1 and 30y-2 of the second pattern retardation film 30 in FIG. Referring to n, around this intersection n,
A pattern region 20x-2 of the first pattern retardation film 20 and a pattern region 30x-1 of the second pattern retardation film 30 in which the directions of the slow axes are both in the x direction (arrows a1x and a2x (0°)). Overlapping areas that are transparent (x direction-x direction (0°-0°));
The pattern region 20y-2 of the first pattern retardation film 20 in which the direction of the slow axis is the y direction (arrows a1y and a2y (90°)), and the second pattern position in which the direction of the slow axis is the x direction A light-shielding overlapping region (y direction-x direction (90°-0°)) in which the pattern region 30x-1 of the phase difference film 30 overlaps;
The pattern region 20x-2 of the first patterned retardation film 20 whose slow axis direction is the x direction and the pattern region 30y-2 of the second patterned retardation film 30 whose slow axis direction is the y direction Overlapping, shaded overlapping areas (x-y-direction (0°-90°)); and
A transparent overlapping region in which the pattern region 20y-2 of the first pattern retardation film 20 and the pattern region 30y-2 of the second pattern retardation film 30 in which the directions of the slow axes are both in the y direction are transparent ( y direction-y direction (90°-90°));, two types of overlapping regions are formed as retardation values, and four types of overlapping regions are formed as a combination of slow axes, thereby forming a checkerboard pattern as shown in FIG. A patterned sphere is displayed.

In the display member 10 of the present invention, the position of the first patterned retardation film 20 of the first stacked body 12 and the position of the second patterned retardation film 30 of the second stacked body 14 are displaced in the z direction. That is, the image formed by the pattern area of the first pattern retardation film 20 and the image formed by the pattern area of the second pattern retardation film 30 are displaced in the z direction.
Therefore, when the display member 10 is observed at an angle with respect to the oblique direction, that is, the z direction, an image by the pattern area of the first pattern retardation film 20 and an image by the pattern area of the second pattern retardation film 30 are formed. It is possible to obtain an image having a stereoscopic effect (a sense of depth) and a visual effect that the image is deformed when viewed from the front.

As described above, in the display member 10 of the present invention, the first stacked body 12 and the second stacked body 14 may be stacked in close contact with each other, or may be stacked with a gap.
Here, the stereoscopic effect of the image and the visual effect of the deformation of the image become greater as the gap between the first stacked body 12 and the second stacked body 14 becomes larger. Therefore, when the first stacked body 12 and the second stacked body 14 are stacked with a space therebetween in order to obtain the effect of the stereoscopic effect of the image and the deformation of the image, the distance between the two should be 1 mm or more. Is preferred. The gap between the first stacked body 12 and the second stacked body 14 is the distance between the first stacked body 12 and the second stacked body 14 in the z direction.
However, if the gap between the first stacked body 12 and the second stacked body 14 is too large, the parallax becomes too large, and the observed image may be unsuitable. Therefore, it is preferable that the gap between the first stacked body 12 and the second stacked body 14 be kept within a range in which the displayed image can be properly observed, depending on the displayed image, the size of the display member 10, and the like.
When a gap is provided between the first laminated body 12 and the second laminated body 14, for example, the first laminated body 12 is attached to one surface of the water tank, and the first laminated body 12 of the water tank is attached. By sticking the second stacked body 14 on the surface opposite to the above surface, a visual effect as if a fish is swimming between the images can be produced.

Furthermore, the display member 10 of the present invention may include a moving unit that relatively moves the first stacked body 12 and the second stacked body 14 in the plane direction.
By relatively moving the first stacked body 12 and the second stacked body 14 in the plane direction, the overlapping position of the pattern region of the first pattern retardation film 20 and the pattern region of the second pattern retardation film 30 and The boundary intersection changes, and the image changes accordingly.
Therefore, the first stacked body 12 and the second stacked body 14 are completely separated from each other without overlapping, and the first stacked body 12 and the second stacked body 14 are relatively moved from each other in a state where nothing is displayed. By gradually increasing the overlapping amount of the first stacked body 12 and the second stacked body 14, and finally stacking them so as to completely overlap each other. Can also be completed. According to this configuration, the display image changes until the first laminated body 12 and the second laminated body 14 are completely overlapped and laminated, so that what kind of image is finally displayed to the observer. Not sure, the entertainment of image display can be improved.
On the contrary, the first laminated body 12 and the second laminated body 14 are gradually overlapped with the first laminated body 12 and the second laminated body 14 from the state in which the image is completed in which the first laminated body 12 and the second laminated body 14 are completely overlapped and laminated. By decreasing the amount and completely separating the two, it is possible to change the image and finally make a state in which nothing is displayed.

For example, as conceptually shown in FIG. 5, when the first stacked body 12 and the second stacked body 14 of the display member 10 are completely separated in the surface direction, the first stacked body 12 and the second stacked body are stacked. The light that has entered the body only passes through them, so nothing is seen.
From this state, an image is displayed when the first stacked body 12 and the second stacked body 14 are relatively moved in the surface direction so as to overlap each other, and the first pattern phase difference is further increased according to an increase in the overlapping amount. The overlapping position of the pattern areas of the film 20 and the second pattern retardation film 30 and the intersection of the boundaries of the pattern areas gradually change, and the image changes.
For example, when the first stacked body 12 and the second stacked body 14 overlap by ¼, a part of the pattern region 20x−1 of the first patterned retardation film 20 and the pattern of the second patterned retardation film 30. The region 30y-1 and part of the pattern region 30y-2 overlap, and part of the pattern region 20y-3 of the first pattern retardation film 20 and the pattern region 30x− of the second pattern retardation film 30. An image as conceptually shown in FIG. 6 is displayed by overlapping a part of 1.

Further, when the first stacked body 12 and the second stacked body 14 are relatively moved in the surface direction to increase the overlapping amount of the first stacked body 12 and the second stacked body 14, similarly, the overlapping amount increases. Accordingly, the overlapping positions of the pattern regions of the first pattern retardation film 20 and the second pattern retardation film 30, the intersections of the boundaries, and the like gradually change, that is, the overlapping regions change, and the image changes.
For example, in the state where the first stacked body 12 and the second stacked body 14 are 3/4 overlapped with each other, the pattern regions 20x-1, 20y-3, 20x-3, 20y-2, 20x of the first patterned retardation film 20. -2 and 20y-1 partially overlap with part of the pattern regions 30x-1, 30y-1, 30y-2 and 30y-3 of the second patterned retardation film 30, conceptually shown in FIG. An image as shown is displayed.

Further, when the first stacked body 12 and the second stacked body 14 are relatively moved in the plane direction to increase the overlapping amount of the first stacked body 12 and the second stacked body 14, the overlapping amount increases in accordance with the increase. , The overlapping position of the first pattern retardation film 20 and the second pattern retardation film 30 with the pattern region, the intersection point of the boundary of the pattern region, and the like are gradually changed, and the image is changed. When the first laminated body 12 and the second laminated body 14 are completely overlapped and laminated, a completed image displaying a checkered sphere is displayed.

Further, from the state in which the completed image shown in FIG. 4 is displayed, the first laminated body 12 and the second laminated body 14 are relatively moved in the plane direction, and the overlapping amount of both laminated bodies is gradually increased. , The overlapping area changes from the state in which the completed image shown in FIG. 4 is displayed, and the images change, resulting in a 3/4 overlapping state in FIG. After four overlapping states, as shown in FIG. 5, nothing is visible.

Such relative movement between the first laminated body 12 and the second laminated body 14 may be performed by fixing the second laminated body 14 and moving the first laminated body 12, or the first laminated body. The body 12 may be fixed and the second laminated body 14 may be moved, or both the first laminated body 12 and the second laminated body 14 may be moved.
Further, the moving means for the first laminated body 12 and/or the second laminated body 14 is not limited, and various known moving means for a sheet-shaped material (film-shaped material, plate-shaped material) can be used. ..

When moving the first laminated body 12 and/or the second laminated body 14, for example, in an automatic door having a transparent door pocket, the first laminated body 12 is attached to the door pocket and the second laminated body 14 is attached to the door. The first laminated body 12 and the second laminated body 14 may be laminated so that the first laminated body 12 and the second laminated body 14 are completely overlapped and laminated with the door fully opened.
As a result, when the automatic door is opened from the completely closed state, some images can be observed from the state where nothing is displayed, the image gradually changes, and the automatic door is completely opened. The image is completed in the closed state, and conversely, when the automatic door is completely opened, the completed image gradually changes, and when the automatic door is closed, It is possible to perform visual effects such as returning to a state where nothing can be seen.
It should be noted that this configuration can be used with a manual door instead of an automatic door.

Further, in the display member of the present invention, the first laminated body 12 and the second laminated body 14 are not completely overlapped and laminated, but the first laminated body 12 and the second laminated body 14 are laminated with a shift. In this state, the pattern area of the first pattern retardation film 20 and the pattern area of the second pattern retardation film 30 may be formed so as to display a completed image.

8 and 9 conceptually show another embodiment of the display member of the present invention. 8 is a side view similar to FIG. 1, and FIG. 9 is an exploded perspective view similar to FIG.
In addition, also in the display member 50 shown in FIG. 9, the first stacked body 52 and the second stacked body 54 may be stacked separately or in contact with each other.
Since the display member 50 shown in FIG. 9 uses the same members as those of the display member 10 shown in FIGS. 1 and 2, the same members are denoted by the same reference numerals, and the following description mainly describes different parts.

The display member 50 includes a third pattern retardation film (third pattern retardation film) 58 and a fourth pattern retardation film (in addition to the first pattern retardation film 20 and the second pattern retardation film 30 described above. A fourth patterned retardation film) 60.
The display member 50 further includes two pattern retardation films, so that the image formed by the first pattern retardation film 20 and the second pattern retardation film 30, the third pattern retardation film 58, and the fourth pattern retardation film. The image by the film 60 can be switched and displayed.

In the first laminated body 52 of the display member 50, the first pattern retardation film 20 is laminated on one surface of the first support 18, and the first polarizing plate is formed on the surface of the first pattern retardation film 20. 24 is laminated, the third pattern retardation film 58 is laminated on the surface of the second polarizing plate 32, and the second first support 18 is formed on the surface of the third pattern retardation film 58. ..
That is, the first laminated body 52 has a configuration in which the first polarizing plate 24 is sandwiched between the first pattern retardation film 20 and the third pattern retardation film 58, and both surfaces thereof are sandwiched between the first supports 18.
On the other hand, in the second laminate 54, the second pattern retardation film 30 is laminated on one surface of the second support 28, and the second polarizing plate 32 is provided on the surface of the second pattern retardation film 30. The fourth patterned retardation film 60 is laminated on the surface of the second polarizing plate 32, and the second support 28 of the second sheet is laminated on the surface of the fourth patterned retardation film 60.
That is, the second laminated body 54 has a configuration in which the second polarizing plate 32 is sandwiched between the second pattern retardation film 30 and the fourth pattern retardation film 60, and both surfaces thereof are sandwiched between the second supports 28.

In addition, the broken line arrow shown to the 1st support body 18 of the 1st laminated body 52 and the broken line arrow shown to the 2nd support body 28 of the 2nd laminated body 54 are the phase delay of a support body like the previous example. It is an axis.
Similar to the display member 10 described above, in the first stacked body 52, by arranging the slow axes of the two first supports 18 at right angles to each other, in the second stacked body 54, two second supports are arranged. By arranging the slow axis of the support member 28 at right angles, the phase difference of the support member is canceled, and a high quality image can be displayed.

The third patterned retardation film 58 and the fourth patterned retardation film 60 are the same λ/4 plate as the first patterned retardation film 20 and the second patterned retardation film 30 described above.
Therefore, the third pattern retardation film 58 and the fourth pattern retardation film 60 have a plurality of slow axis directions in the same plane, and an image to be displayed is formed in a region where the slow axis directions coincide with each other. Corresponding pattern areas (pattern areas 58x-1, 58y-1 to 58y-3, 60x-1 and 60y-1 to 60y-3 described later) are provided. Further, the shape of the pattern regions is different between the third pattern retardation film 58 and the fourth pattern retardation film 60.

As will be described later, the image (the image to be carried) displayed by the third pattern retardation film 58 and the fourth pattern retardation film 60 of the display device 80 is an image obtained by planarly viewing the cylinder.
The image of the pattern region of the third patterned retardation film 58 of the first stacked body 52 is obtained by cutting the cylinder at a plurality of positions in the y direction (height direction) on a plane parallel to the x direction (plane parallel to the bottom surface). It is an image that looks like.
On the third patterned retardation film 58, pattern regions 58y-1 to 58y-3 having a slow axis (arrow a3y) in the y direction and a slow axis (arrow a3x) in the x direction, which is the other region. Pattern area 58x-1 having That is, the slow axes of the pattern region 58x-1 and the pattern regions 58y-1 to 58y-3 are orthogonal to each other. Further, in the third pattern retardation film 58, the slow axes of the adjacent pattern regions are orthogonal to each other.

On the other hand, the image of the pattern area of the fourth patterned retardation film 60 of the second stacked body 54 is a plane parallel to the y direction, and is a plane obtained by cutting the cylinder at a plurality of locations in the x direction.
In the fourth patterned retardation film 60, pattern regions 60y-1 to 60y-3 having a slow axis (arrow a4y) in the y direction and a slow axis (arrow a4x) in the x direction which is the other region. And a pattern region 60x-1 having That is, the slow axes of the pattern region 60x-1 and the pattern regions 60y-1 to 60y-3 are orthogonal to each other. Also in the fourth patterned retardation film 60, the slow axes of the adjacent pattern regions are orthogonal to each other.

Similar to the previous example, the first polarizing plate 24 and the second polarizing plate 32 have a transmission axis (arrows t1 and t2) of 45° (−45° and +45°) with respect to the x direction (y direction). Therefore, the transmission axis of the first polarizing plate 24 and the transmission axis of the second polarizing plate 32 are orthogonal to each other.
The third patterned retardation film 58 and the fourth patterned retardation film 60 are both λ/4 plates, and have a pattern region having a slow axis in the x direction and a pattern region having a slow axis in the y direction. And the pattern regions of both retardation films have different shapes.
Therefore, in the display member 50 shown in FIG. 9, when the first stacked body 52 and the second stacked body 54 are completely overlapped and observed in a stacked state, light is shielded or transmitted depending on the transmitted region. In the same manner as the image display using the first pattern retardation film 20 and the second pattern retardation film 30 described above, the pattern regions of the third pattern retardation film 58 and the fourth pattern retardation film 60 are displayed in FIG. An image conceptually displayed is displayed.

For example, the display member 50 in which the first laminated body 52 and the second laminated body 54 are completely overlapped and laminated is observed.
At this time, the light transmitted through the second support 28 is incident on the second pattern retardation film 30, but since this light is not polarized light, the second pattern retardation film 30 is hardly affected. The light is transmitted and enters the second polarizing plate 32.
The light that has entered the second polarizing plate 32 and has been transmitted becomes linearly polarized light of +45°.

This +45° linearly polarized light then enters the fourth pattern retardation film 60, the second support 28, the first support 18 and the third pattern retardation film 58 in this order and is transmitted therethrough.
A part of the +45° linearly polarized light is incident on, for example, an overlapping region where the pattern region 60y-1 of the fourth pattern retardation film 60 and the pattern region 58y-1 of the third pattern retardation film 58 overlap. As described above, both the pattern region 60y-1 and the pattern region 58y-1 are λ/4 retardation regions, and the slow axes (arrows a4y and a3y) are in the y direction. Therefore, the overlapping area (overlapping pattern area) is “λ/4 retardation area+λ/4 retardation area”, and the linear polarization of +45° results in the λ/2 retardation area (λ/2 plate). ), the polarization direction is rotated by 90°, and becomes -45° linearly polarized light.
The -45° linearly polarized light that has passed through the pattern region 60y-1 of the fourth pattern retardation film 60 and the pattern region 30y-1 of the third pattern retardation film 58 then enters the first polarizing plate 24. As described above, the first polarizing plate 24 is a polarizing plate having a transmission axis (arrow t1) of −45°. Therefore, the −45° linearly polarized light incident on the first polarizing plate 24 is transmitted through the first polarizing plate 24.

The −45° linearly polarized light that has passed through the first polarizing plate 24 then enters the first patterned retardation film 20.
Since the first patterned retardation film 20 is a λ/4 plate, linearly polarized light of −45° changes to circularly polarized light. However, since it is visually unaffected, the light passes through the first patterned retardation film 20 and then the first support 18, and as shown in FIG. , This part is a transparent display.

On the other hand, another part of the +45° linearly polarized light transmitted through the second support 28 and the second patterned retardation film 30 and transmitted through the second polarizing plate 32 is, for example, the fourth patterned retardation film 60. The pattern region 60y-1 and the pattern region 58x-1 of the third pattern retardation film 58 are incident on the overlapping region where they overlap. As described above, both the pattern region 60y-1 and the pattern region 58x-1 are λ/4 phase difference regions, but the slow axes (arrows a4y and a3x) are orthogonal to each other. Therefore, the overlapping area (overlapping pattern area) is “λ/4 phase difference area+(−λ/4 phase difference area)”, and the linearly polarized light of +45° is transmitted through the area where nothing exists. It will be similar to the case. That is, the light transmitted through the pattern region 60y-1 and the pattern region 58x-1 remains as +45° linearly polarized light in the same direction as the transmission axis (arrow t1) of the second polarizing plate 32.
The +45° linearly polarized light that has passed through the pattern region 60y-1 of the fourth pattern retardation film 60 and the pattern region 58x-1 of the third pattern retardation film 58 then enters the first polarizing plate 24. As described above, the first polarizing plate 24 is a polarizing plate having a transmission axis (arrow t1) of −45°. Therefore, the +45° linearly polarized light incident on the first polarizing plate 24 is blocked by the first polarizing plate 24. As a result, as shown in FIG. 10, this portion is displayed in black.

By such an action, the first laminated body 52 and the second laminated body 54 are completely overlapped and laminated, so that a checkered cylindrical image as shown in FIG. 10 is displayed.

Further, similarly to the display member 10 described above, the display member 50 also moves the first stacked body 52 and the second stacked body 54 relatively in the surface direction to thereby move the first stacked body 52 and the second stacked body. 54 and the first stacked body 52 and the second stacked body 54 are overlapped with each other by, for example, a state in which the first stacked body 52 and the second stacked body 54 are overlapped by 2/3 as shown in FIG. By completely overlapping 54 and 54, it is possible to display an image of a completed checkered cylinder as shown in FIG. 10 while changing the image.
Further, similar to the display member 10, from the state where the first stacked body 52 and the second stacked body 54 are completely overlapped with each other, the overlapping amount of both the stacked bodies is gradually reduced to complete the checkered pattern image. Therefore, it is possible to change the image to a state in which the first stacked body 52 and the second stacked body 54 are completely separated from each other and nothing is displayed.

As described above, in the display member 50, in the state where the first stacked body 52 and the second stacked body 54 are stacked, the pattern retardation film positioned outside the first polarizing plate 24 and the second polarizing plate 32 is It has no effect on the image display, and only the patterned retardation film located inside the first polarizing plate 24 and the second polarizing plate 32 acts on the image display.
That is, in the state shown in FIG. 9, only the third patterned retardation film 58 and the fourth patterned retardation film 60, which are located inside the first polarizing plate 24 and the second polarizing plate 32, act to display an image. The first patterned retardation film 20 and the second patterned retardation film 30 located outside the polarizing plate do not affect the display of images.
Therefore, for example, the first layered body 52 and the second layered body 54 are exchanged in the z direction, or the first layered body 52 and the second layered body 54 are turned upside down, and the first patterned retardation film 20. And the second patterned retardation film 30 is located inside the first polarizing plate 24 and the second polarizing plate 32, and the third patterned retardation film 58 and the fourth patterned retardation film 60 are located outside both polarizing plates. As a result, only the first pattern retardation film 20 and the second pattern retardation film 30 located inside the first polarizing plate 24 and the second polarizing plate 32 act on the display of the image, and in the same manner as above, The checkered sphere shown in FIG. 4 can be displayed.

That is, in the configuration shown in FIG. 9 in which the laminated body has two patterned retardation films sandwiching a polarizing plate, either the first laminated body or the second laminated body is turned upside down, or It is possible to display two or more kinds of images by inverting both the laminate and the second laminate.

Similar to the display member 10 described above, in the display member 50, the first stacked body 52 and the second stacked body 54 are not in a state in which the first stacked body 52 and the second stacked body 54 are completely overlapped and stacked. The completed image may be displayed in a state where the images are shifted and stacked.
In the display member 50, one image displays an image completed in a state where the first laminated body 52 and the second laminated body 54 are completely overlapped and laminated, and the other image is the first laminated body. The completed image may be displayed in a state in which the 52 and the second stacked body 54 are displaced and stacked.

In the display member 10 and the display member 50 described above, the transmission axes of the first polarizing plate 24 and the second polarizing plate 32 are orthogonal to each other, but the present invention is not limited to this.
For example, the transmission axes of the first polarizing plate 24 and the second polarizing plate 32 may be parallel. In this case, for example, in the display member 10, the light-shielded and black display area is transparent, and in the display member 10, the transparent area is light-shielded and black display.

As described above, the first laminated body and the second laminated body have the support (transparent support), the patterned retardation film, and the polarizing plate.

<Support>
The support (first support 18, second support 28) supports the patterned retardation film and the polarizing plate. The support is provided as a preferred embodiment, and by having the support, the mechanical strength of the first laminate and the second laminate can be improved.

The material for forming the support is not particularly limited, and various materials can be used as long as they can form a transparent support.
Specifically, polycarbonate-based polymers, polyester-based polymers such as polyethylene terephthalate and polyethylene naphthalate, (meth)acrylic-based polymers such as polymethyl methacrylate, polystyrene and styrene-based polymers such as acrylonitrile-styrene copolymers (AS resin). Polyolefin polymers such as polyethylene, polypropylene, ethylene-propylene copolymers, vinyl chloride polymers, amide polymers such as nylon and aromatic polyamides, imide-based poly-intersection regions, rufone-based polymers, polyether sulfone-based polymers, polyethers Examples thereof include ether ketone-based polymers, polyphenylene sulfide-based polymers, vinylidene chloride-based polymers, vinyl alcohol-based polymers, vinyl butyral-based polymers, arylate-based polymers, polyoxymethylene-based polymers, and epoxy-based polymers.

A thermoplastic norbornene-based resin can be preferably used as a material for forming the support. Examples of the thermoplastic norbornene-based resin include ZEONEX and ZEONOR manufactured by Nippon Zeon Co., Ltd., and ARTON manufactured by JSR.
Further, as a material forming the support, a cellulose-based polymer typified by triacetyl cellulose (TAC) can also be preferably used.

Although the thickness of the support is not particularly limited, it is preferably from 15 to 100 μm, more preferably from 20 to 80 μm, and particularly preferably from 40 to 60 μm, in that the first laminate and the second laminate can be thinned.
The support preferably has a small in-plane retardation. Specifically, the support preferably has a retardation value (Re value) of 20 nm or less, more preferably 10 nm or less.

<Pattern retardation film>
The material forming the patterned retardation film (the first patterned retardation film 20, the second patterned retardation film 30, the third patterned retardation film 58, and the fourth patterned retardation film 60) is a material exhibiting the above-mentioned characteristics. If there is no particular limitation, various known materials can be used.
Examples of the material for forming the patterned retardation film include liquid crystal compounds. More specifically, a retardation film (optically anisotropic layer) obtained by forming a low molecular weight liquid crystalline compound in a liquid crystal state in a nematic orientation and then fixing it by photocrosslinking or thermal crosslinking, or a high molecular weight liquid crystalline compound is used. It is also possible to use a retardation film (optically anisotropic layer) obtained by fixing the orientation by cooling after forming nematic orientation in the liquid crystal state.

In general, liquid crystal compounds can be classified into a rod-shaped type (rod-shaped liquid crystalline compound) and a disc-shaped type (discotic liquid crystalline compound) based on their shapes. Furthermore, there are low molecular type and high molecular type respectively. A polymer generally means a polymer having a degree of polymerization of 100 or more (polymer physics/phase transition dynamics, Masao Doi, p. 2, Iwanami Shoten, 1992). In the present invention, any liquid crystal compound can be used. You may use 2 or more types of rod-shaped liquid crystalline compounds, 2 or more types of discotic liquid crystalline compounds, or the mixture of a rod-shaped liquid crystalline compound and a discotic liquid crystalline compound.
As the rod-shaped liquid crystalline compound, for example, those described in claim 1 of JP-A-11-513019 and paragraphs [0026] to [0098] of JP-A-2005-289980 are preferably used. it can. As the discotic liquid crystal compound, for example, those described in paragraphs [0020] to [0067] of JP2007-108732A and paragraphs [0013] to [0108] of JP2010-244038A are preferable. Can be used. In addition, in this invention, a liquid crystal compound is not limited to these.
Further, from the viewpoint of suppressing the tint, it is preferable to use a liquid crystal compound having a reverse wavelength dispersion property, and for example, it is also preferable to use the compound described in JP-A-2016-81035.
Since the pattern retardation film can reduce the temperature change and/or the humidity change, it is more preferable to use a liquid crystal compound having a polymerizable group (a rod-shaped liquid crystal compound or a discotic liquid crystal compound). The liquid crystal compound may be a mixture of two or more kinds, in which case at least one preferably has two or more polymerizable groups.
That is, the patterned retardation film is preferably a layer formed by fixing a rod-like liquid crystal compound or a discotic liquid crystal compound having a polymerizable group by polymerization or the like, and in this case, after forming a layer, it is no longer possible. It does not have to exhibit liquid crystallinity.
The type of the polymerizable group contained in the discotic liquid crystalline compound and the rod-shaped liquid crystalline compound is not particularly limited, a functional group capable of addition polymerization reaction is preferable, and a polymerizable ethylenic unsaturated group or a ring polymerizable group is preferable. More specifically, a (meth)acryloyl group, a vinyl group, a styryl group, an allyl group and the like are preferable, and a (meth)acryloyl group is more preferable.

The patterned retardation film may be a single layer film or a laminated film in which a plurality of layers are laminated.

The method for forming the pattern retardation film is not particularly limited. For example, when forming the pattern retardation film using a liquid crystal compound, an alignment film for bringing the molecules of the liquid crystal compound into a desired alignment state is used. The technology used is general.
As the alignment film, a rubbing film made of an organic compound such as a polymer, an obliquely evaporated film of an inorganic compound, a film having microgrooves, ω-tricosanoic acid, dioctadecylmethylammonium chloride, Langmuir of an organic compound such as methyl stearate Various known films such as a film obtained by accumulating an LB (Langmuir-Blodgett) film by the Blodget method can be used. Examples of the type of polymer used for the alignment film include polyimide, polyvinyl alcohol, and polymers having a polymerizable group described in JP-A-9-152509.

In the present invention, the alignment film is a so-called alignment film obtained by irradiating a film (a film for forming a photo-alignment film) containing a photo-alignment material (a photo-alignment film) with light (for example, polarized light or unpolarized light). It is preferable to use a photo-alignment film.
For example, the photo-alignment material may be applied onto the support and subjected to a predetermined irradiation treatment through a mask to produce the photo-alignment film. Irradiation with polarized light can be performed on the film for forming a photo-alignment film from a vertical direction or an oblique direction, and irradiation with non-polarized light can be performed on the film for forming a photo-alignment film from an oblique direction.

The photo-alignment material that can be used in the present invention is described in many documents. For example, JP 2006-285197 A, JP 2007-76839 A, JP 2007-138138 A, JP 2007-94071 A, JP 2007-121721 A, JP 2007-140465 A, JP-A-2007-156439, JP-A-2007-133184, JP-A-2009-109831, JP-A-3883848 and JP-A-41515146, the azo compounds described in JP-A-2002-229039 Aromatic ester compounds, maleimide and/or alkenyl-substituted nadiimide compounds having a photoalignment unit described in JP-A-2002-265541 and JP-A-2002-317013, Japanese Patent No. 4205195 and Japanese Patent No. 4205198. Photo-crosslinkable silane derivative described in JP-A No. 2003-520878, JP-A No. 2004-529220, and JP-A No. 4162850, the photo-crosslinkable polyimide, polyamide, or ester described in JP-A-9-118717. , JP-A-10-506420, JP-A-2003-505561, WO2010/150748, JP2013-177561, JP2014-12823, and the photodimerizable compound, particularly cinnamate. Preferred examples include compounds, chalcone compounds, and coumarin compounds. Particularly preferred are azo compounds, photocrosslinkable polyimides, polyamides, esters, cinnamate compounds and chalcone compounds.

The thickness of the alignment film is preferably 0.01 to 5 μm, more preferably 0.05 to 2 μm, as long as it can provide an alignment function.

The patterned retardation film may be formed by a known method.
As an example, when the first pattern retardation film 20 is formed by using a photo-alignment film, first, a coating liquid (photo-alignment film containing the first support 18 and the photo-alignment material (photo-alignment film) is formed. A coating liquid for alignment film) is prepared. As an example, the first support 18 has a slight phase difference.
The coating liquid for photo-alignment film is applied to one surface of the first support 18 and dried to form a coating film of the coating liquid for photo-alignment film. The coating liquid for the photo-alignment film may be applied by a known method such as a bar coating method and a spin coating method.

Next, the coating film of the coating liquid for photo-alignment film is irradiated with linearly polarized light parallel to the slow axis with the slow axis of the first support 18 as the y direction, and the entire surface of the coating film is oriented in the y direction. .. Irradiation of linearly polarized light may be performed by a known method such as a method using a light source and a wire grid polarizing plate.
Next, a mask 64 (a black region is a light-shielding region) shown on the left side of FIG. 12 that is created in advance according to the pattern region is set in the y direction (vertical direction) of the mask 64 and the slow axis of the first support 18. Match and install. In this state, the coating film is irradiated with linearly polarized light orthogonal to the previously irradiated linearly polarized light, that is, linearly polarized light in the x direction, through the mask 64.
As a result, on the first support 18, the regions corresponding to the pattern regions 20x-1 to 20x-3 are oriented in the x direction, and the regions corresponding to the pattern regions 20y-1 to 20y-3 are oriented in the y direction. Then, the photo-alignment film is formed.

On the other hand, a retardation film coating liquid for forming the first patterned retardation film 20 containing a polymerizable liquid crystal compound or the like is prepared.
Then, the coating liquid for retardation film is applied to the surface of the photo-alignment film previously formed. The coating of the coating liquid for a retardation film may be performed by a known method as in the above.
Further, the retardation film coating liquid applied as necessary is dried, and the coating film of the retardation film coating liquid is irradiated with ultraviolet rays to cure the retardation film coating liquid. As a result, pattern regions 20x-1 to 20x-3 having a slow axis in the x direction and pattern regions 20y-1 to 20y-3 having a slow axis in the y direction are formed, as shown in FIG. In addition, the first patterned retardation film 20 supported by the first support 18 can be formed.

Further, as a method for producing a patterned retardation film that does not use a photo-alignment film, it is also possible to use the methods described in JP2012-32661A and/or JP2012-150428A.

<Polarizing plate>
As the polarizing plates (first polarizing plate 24 and second polarizing plate 32), so-called linear polarizing plates having a function of converting natural light into specific linearly polarized light are used.
As an example, an absorption type linear polarizing plate is exemplified.
There is no particular limitation on the type of absorption-type linear polarizing plate, and known absorption-type polarizing plates can be used. For example, iodine-based polarizing film, dye-based polarizing film using dichroic dye (dichroic organic dye) Both a film and a polyene-based polarizing film can be used. The iodine-based polarizing film and the dye-based polarizing film are generally produced by adsorbing iodine or a dichroic dye in polyvinyl alcohol and stretching.

Further, as the polarizing plate, a reflection type linear polarizing plate may be used other than the absorption type linear polarizing plate.
As the reflection type linear polarizing plate, known ones can be used, and for example, a polarizing plate in which thin films having different birefringence are laminated, a wire grid type polarizing plate and the like are used. Examples of the polarizing plate in which thin films having different birefringence are laminated include those described in Japanese Patent Publication No. 9-506837, etc., and commercially available products such as 3EF's trade name: DBEF. Examples of the wire grid type polarizing plate include commercially available products such as a wire grid polarizing filter 50×50 and NT46-636 manufactured by Edmund Optics.
Note that the reflective linear polarization plate has a property of transmitting the polarized light component in the first direction and reflecting the polarized light component in the direction orthogonal to the first direction in the incident light. That is, when non-polarized light enters from one side of the polarizing plate, linearly polarized light is obtained from the other side.

In the display member of the present invention, the polarizing plate basically transmits or reflects visible light. Further, if necessary, ultraviolet rays and/or infrared rays may be transmitted or reflected.
It should be noted that infrared rays (infrared rays) are electromagnetic waves in a wavelength range longer than visible rays and shorter than radio waves. Near-infrared rays are generally electromagnetic waves in the wavelength range of more than 750 nm and 2500 nm or less. Visible light is light of a wavelength that can be seen by human eyes among electromagnetic waves, and shows light in a wavelength range of 380 to 750 nm. Ultraviolet rays (ultraviolet rays) are electromagnetic waves in a wavelength range shorter than visible light and longer than X-rays. The ultraviolet light may be light in a wavelength range that is distinguished from visible light and X-rays, and is, for example, light having a wavelength of 10 nm or more and less than 380 nm.

Such a polarizing plate is an optical transparent adhesive (OCA (Optical Clear Adhesive)), an optical transparent double-sided tape, a UV curable resin, or the like, which is a known sticking material used for sticking sheet-like materials in optical devices and optical elements. The agent may be used to adhere to the patterned retardation film.
That is, as an example of the first laminated body and the second laminated body, after forming the patterned retardation film on one surface of the support as described above, the polarizing plate is attached to the patterned retardation film with an adhesive. You can create it.

Although the display member of the present invention has been described above in detail, the present invention is not limited to the above-mentioned configuration, and various improvements and polarization may be performed without departing from the gist of the present invention. , Of course.

The features of the present invention will be described more specifically below with reference to Examples and Comparative Examples. The materials, usage amounts, ratios, processing contents, processing procedures, and the like shown in the following examples can be appropriately changed without departing from the spirit of the present invention. Therefore, the scope of the present invention should not be limitedly interpreted by the following specific examples.

The following support, coating liquid for photo-alignment film, coating liquid for retardation film, and polarizing plate were prepared.
<Support>
As the first support 18 and the second support 28, a commercially available TAC film (TD80UL manufactured by FUJIFILM Corporation) was prepared.
<Coating liquid for photo-alignment film>
A coating liquid for a photo-alignment film was prepared with reference to the description of Example 3 in JP2012-155308A.
<Coating liquid for retardation film>
A coating liquid for retardation film having the following composition was prepared.
Coating liquid for retardation film ・The following polymerizable liquid crystal 1 80.0 parts by mass ・The following polymerizable liquid crystal 2 20.0 parts by mass ・Polymerization initiator (IRGACURE 819, manufactured by BASF Corporation) 4.0 parts by mass ・The following Air interface aligner 1 0.1 parts by mass Methyl ethyl ketone 416.4 parts by mass

<Polarizing plate>
As the first polarizing plate 24 and the second polarizing plate 32, polarizing plates HCL2-5618 manufactured by Sanritsu Corporation were prepared.

[Example 1]
[Preparation of first laminated body 12]
<Formation of patterned photo-alignment film A>
The coating liquid for photo-alignment film was applied to one surface of the first support 18 by a bar coating method to form a coating film of the coating liquid for photo-alignment film.
The entire surface of the formed coating film was irradiated with linearly polarized light (linearly polarized light in the y direction) parallel to the slow axis (broken line) of the first support 18 at 100 mJ/cm ² (converted to 313 nm) (first exposure). ..
Next, a mask 64 conceptually prepared on the left side of FIG. 12 was placed with the vertical direction (y direction) of the mask parallel to the slow axis of the first support 18. The mask 64 is a region where a black region in the drawing is shielded from light. In this respect, the other masks are also the same.
Thereafter, the coating film is irradiated with linearly polarized light orthogonal to the first exposure, that is, linearly polarized light in the x direction at a dose of 500 mJ/cm ² (converted to 313 nm) through the mask 64 (second exposure) to form a pattern. The photo-alignment film A was formed.
The irradiation of linearly polarized light was performed using a 750 W ultra-high pressure mercury lamp and a wire grid polarizing plate as a polarizer. The irradiation of the linearly polarized light is the same in the formation of other patterned photo-alignment films.

<Formation of first patterned retardation film 20>
The prepared coating liquid for retardation film was applied to the surface of the formed patterned photo-alignment film A using a wire bar (#3) to form a coating film. After drying the first support 18 having the coating film at 90° C. for 1 minute, light of 300 mJ/cm ² (313 nm conversion) was formed at 60° C. under nitrogen using an ultrahigh pressure mercury lamp of 750 W. The coating film was irradiated to form the first patterned retardation film 20 as shown in FIG.
Re(550) of each pattern region of the first patterned retardation film 20 was measured. As a result, in the production of the patterned photo-alignment film A, Re (550 of the pattern regions 20y-1 to 20y-3 (regions shielded by the mask 64 in the second exposure) that were irradiated with light only in the first exposure. ) Is 123 nm, and Re(550) of the pattern areas 20x-1 to 20x-3 (areas not shielded by the mask 64 in the second exposure) that are irradiated with light in the first and second exposures is 123 nm. there were.
The slow axes of the pattern regions 20y-1 to 20y-3 are in the y direction (arrow a1x), and the slow axes of the pattern regions 20x-1 to 20x-3 are in the x direction (arrow a1y). The axes were orthogonal.

<Preparation of first laminated body 12>
The first polarizing plate 24 and the first patterned retardation film are formed by using an adhesive (MCS70 manufactured by Meitan Imaging Co., Ltd.) so that the first patterned retardation film 20 is inside the first polarizing plate. The 1st support body 18 which formed 20 was adhered, and the 1st laminated body 12 as shown in FIG.1 and FIG.2 was produced.
At this time, the slow axes of the pattern regions 20y-1 to 20y-3 in which only the first exposure of the first patterned retardation film 20 is viewed from the first polarizing plate 24 side are the first polarizing plates. The first laminated body 12 was manufactured by sticking so as to be inclined at 45° clockwise with respect to the transmission axis of 24 (arrow t1) (that is, the transmission axis of the first polarizing plate 24 was −45°).

[Fabrication of Second Stack 14]
<Formation of patterned photo-alignment film B>
A coating film of the coating liquid for a photo-alignment film was formed on one surface of the second support 28 in the same manner as the formation of the patterned photo-alignment film A.
The entire surface of the formed coating film was irradiated with linearly polarized light (linearly polarized light in the y direction) orthogonal to the slow axis (broken line (x direction)) of the second support 28 at 100 mJ/cm ² (converted to 313 nm) (1 Second exposure).
Next, a mask 68 conceptually prepared on the right side of FIG. 12 was installed so that the vertical direction (y direction) of the mask 68 and the slow axis of the first support 18 were orthogonal to each other. Thereafter, the coating film is irradiated with linearly polarized light of linearly polarized light (x direction) orthogonal to the first exposure through the mask 68 at 500 mJ/cm ² (converted to 313 nm) (second exposure) to form a pattern. A photo-alignment film B was formed.

<Formation of Second Pattern Retardation Film 30 and Fabrication of Second Laminate 14>
By forming a retardation film similar to the first pattern retardation film 20 except that the second support 28 on which the patterned photo-alignment film B is formed is used, the second pattern retardation as shown in FIG. The film 30 was formed.
Re(550) of each pattern region of the second patterned retardation film 30 was measured. As a result, in the production of the patterned photo-alignment film B, Re (550 of the pattern regions 30y-1 to 30y-3 (regions shielded by the mask 68 in the second exposure) irradiated with light only in the first exposure. ) Is 123 nm, and Re(550) of the pattern area 30x-1 (area not shielded by the mask 68 in the second exposure) which is irradiated with light in the first and second exposures is 123 nm.
The slow axes (arrows a2y) of the pattern regions 30y-1 to 30y-3 are in the y direction, the slow axes of the pattern regions 30x-1 are in the x direction (arrows a2x), and the slow axes of both regions are orthogonal. Was there.
A second polarizing plate 32 is attached to the second patterned retardation film 30 in the same manner as the first laminated body 12 to produce a second laminated body 14 as shown in FIG. 2 (second). The transmission axis of the polarizing plate 32 is +45°).

[Production of display member 10]
The first polarizing plate 24 surface of the first laminated body 12 was attached to a glass plate using the same adhesive as the above, and the first glass member was produced by attaching the first laminated body 12 to the glass plate. .. On the other hand, the second polarizing plate 32 surface of the second laminate 14 is attached to a glass plate using the same adhesive as the above, and the second glass member obtained by attaching the second laminate 14 to the glass plate is formed. It was made.
The first glass member and the second glass member are installed with a 1 cm gap (z direction) so that the transmission axes (arrows t1 and t2) of the polarizing plates are orthogonal to each other, thereby forming a glass plate. A display member 10 as shown in FIGS. 1 and 2 was manufactured except that it was not provided.

From the state where the first laminated body 12 and the second laminated body 14 do not overlap with each other (FIG. 5 ), the first glass member and the second glass member are relatively moved in the plane direction to gradually move to the first glass member. The glass member and the second glass member were overlapped.
As a result of observing from the first glass member side, nothing was initially displayed, but an image is displayed according to the overlap between the first laminated body 12 and the second laminated body 14, and according to an increase in the overlapping amount. As shown in FIGS. 6 to 7, the displayed images change, and when the first laminated body 12 and the second laminated body 14 completely overlap each other, a checkered pattern as shown in FIG. An image of the sphere is displayed. Further, when observed from an oblique direction, a visual effect such as a sense of depth due to parallax was generated.

[Example 2]
[Fabrication of First Stack 52]
<Formation of patterned photo-alignment film C>
A coating film of the coating liquid for a photo-alignment film was formed on one surface of the second first support 18 in the same manner as the formation of the patterned photo-alignment film A.
A patterned photo-alignment film C was formed in the same manner as the patterned photo-alignment film A, except that the mask was changed to a mask 72 conceptually prepared in advance on the right side of FIG. At this time, the vertical direction (y direction) of the mask 72 was set to be orthogonal to the slow axis (broken line) of the first support 18 of the second sheet.

<Formation of Third Pattern Retardation Film 58>
A third pattern retardation film 58 as shown in FIG. 9 was formed by forming a retardation film similar to the first pattern retardation film 20 except that this patterned photo-alignment film C was used.
Re(550) of each pattern region of the third patterned retardation film 58 was measured. As a result, in the production of the patterned photo-alignment film C, Re (550 of the pattern regions 58y-1 to 58y-3 (regions shielded by the mask 72 in the second exposure) irradiated with light only in the first exposure. ) Was 123 nm, and Re(550) of the pattern area 58x-1 (area not shielded by the mask 72 in the second exposure) irradiated with light in the first and second exposures was 123 nm.
The slow axes (arrows a3y) of the pattern regions 58y-1 to 58y-3 are in the y direction, the slow axes of the pattern regions 58x-1 are in the x direction (arrows a3x), and the slow axes of both regions are orthogonal. Was there.

<Preparation of first laminated body 52>
The same pressure-sensitive adhesive as the above is used to form the first laminated body 12 so that the third patterned retardation film 58 is on the inner side of the first polarizing plate 24 of the first laminated body 12 similar to that of the first embodiment. Then, the second first support 18 having the third patterned retardation film 58 formed thereon was adhered to produce a first laminate 52 as shown in FIG.
At this time, the sticking was performed so that the slow axis (broken line) of the first support 18 of the first sheet and the slow axis (broken line) of the first support 18 of the second sheet were orthogonal to each other. ..

[Production of Second Stack 54]
<Formation of patterned photo-alignment film D>
A coating film of the coating liquid for a photo-alignment film was formed on one surface of the second support 28 of the second sheet, similarly to the formation of the patterned photo-alignment film A.
A patterned photo-alignment film C was formed in the same manner as the patterned photo-alignment film A except that the mask was changed to a mask 70 conceptually prepared on the left side of FIG. At this time, the vertical direction (y direction) of the mask 70 was made parallel to the slow axis (broken line) of the second support 28 of the second sheet.

<Formation of Fourth Pattern Retardation Film 60>
A fourth pattern retardation film 60 as shown in FIG. 9 was formed by forming a retardation film in the same manner as the first pattern retardation film 20 except that this patterned photo-alignment film D was used.
Re(550) of each pattern region of the fourth patterned retardation film 60 was measured. As a result, in the fabrication of the patterned photo-alignment film D, Re (550 of the pattern regions 60y-1 to 60y-3 (regions shielded by the mask 70 in the second exposure) that were irradiated with light only in the first exposure ) Was 123 nm, and Re(550) of the pattern area 60x-1 (area not shielded by the mask 70 in the second exposure) which was irradiated with light in the first and second exposures was 123 nm.
The slow axes (arrows a4y) of the pattern regions 60y-1 to 60y-3 are in the y direction, the slow axes of the pattern regions 60x-1 are in the x direction (arrows a4x), and the slow axes of both regions are orthogonal. Was there.

<Preparation of second laminated body 54>
The same pressure-sensitive adhesive as that described above was used for the second laminated body 14 so that the fourth patterned retardation film 60 was on the inner side of the second polarizing plate 32 of the second laminated body 14 similar to that of the first embodiment. Then, the second second support 28 having the fourth patterned retardation film 60 formed thereon was adhered to produce a second laminate 54 as shown in FIG.
At this time, the sticking was performed so that the slow axis (broken line) of the first support 18 of the first sheet and the slow axis (broken line) of the first support 18 of the second sheet were orthogonal to each other. ..

[Production of display member 50]
1 cm of the first laminated body 52 having the first patterned retardation film 20 and the third patterned retardation film 58, and 1 cm of the second laminated body 54 having the second patterned retardation film 30 and the fourth patterned retardation film 60. The display member 50 as shown in FIG. 8 and FIG. 9 was produced by setting the space (z direction) apart from each other.
At this time, in the first laminated body 52 and the second laminated body 54, as shown in FIG. 9, the third patterned retardation film 58 and the fourth patterned retardation film 60 are the first polarizing plate 24 and the second polarized light. It was positioned between the plate 32 and the transmission axis of the first polarizing plate 24 (arrow t1) and the transmission axis of the second polarizing plate 32 (arrow t2) were orthogonal to each other.

From the state where the first stacked body 52 and the second stacked body 54 do not overlap (see FIG. 5), the first stacked body 52 and the second stacked body 54 are relatively moved in the plane direction, and gradually. , Duplicated.
As a result of observing from the first stacked body 52 side, nothing was initially displayed, but an image is displayed according to the overlap between the first stacked body 52 and the second stacked body 54, and the image is changing. When the first laminate 52 and the second laminate 54 are completely overlapped after the two laminates shown in FIG. 11 are overlapped by 2/3, a checkered cylinder as shown in FIG. Image was displayed. Further, when observed from an oblique direction, a visual effect such as a sense of depth due to parallax was generated.

Further, the first laminated body 52 and the second laminated body 54 are exchanged in the laminating direction (z direction) so that the first patterned retardation film 20 and the second patterned retardation film 30 become the first polarizing plate 24 and the second polarizing plate 24. It is arranged to be located between the polarizing plate 32. In this state, similarly, both laminated bodies were moved from the separated state to the completely overlapped state. As a result, similarly to the display member 10 of the first embodiment, the displayed image changes from the state in which nothing is displayed as shown in FIG. 5 to that shown in FIGS. When the and the second stacked body 54 completely overlapped with each other, an image of a checkered sphere as shown in FIG. 4 was displayed. This confirmed that the display member 50 can display two different types of images.
From the above results, the effect of the present invention is clear.

10, 50 Display member 12, 52 First laminated body 14, 54 Second laminated body 18 First support 20 First pattern retardation film 24 First polarizing plate 28 Second support 30 Second pattern retardation film 32th 2 polarizing plates 58 3rd pattern retardation film 60 4th pattern retardation film 64, 68, 70, 72 Mask 20x-1 to 20x-3, 20y-1 to 20y-3, 30x-1, 30y-1 to 30y -3, 58x-1, 58y-1 to 58y-3, 60x-1, 60y-1 to 60y-3 pattern area a1x, a1y, a2x, a2y, a3x, a3y, a4x, a4y, t1, t1 arrow

Claims (15)

A first polarizing plate; and a first patterned retardation film having a plurality of slow axis directions in the same plane and provided with a pattern region formed in a region where the slow axis directions coincide with each other. A first stack, and
A second polarizing plate; and a second patterned retardation film having a plurality of slow axis directions in the same plane and provided with a pattern region formed in a region where the slow axis directions coincide with each other. A second stack,
The shape of the pattern region of the first patterned retardation film of the first laminate and the shape of the pattern region of the second patterned retardation film of the second laminate are different from each other. Display member characterized by. In a state where the first laminated body and the second laminated body are laminated,
A plurality of overlaps in which the pattern region of the first patterned retardation film of the first laminated body and the pattern region of the second patterned retardation film of the second laminated body are overlapped with each other. The display member according to claim 1, which has a region, and the overlapping region includes a plurality of types having different retardation values from each other. The display member according to claim 2, wherein the overlapping region has the overlapping region having a retardation value of 0 nm±10 nm at 550 nm. The display member according to claim 2, wherein the overlapping region has the overlapping region having a retardation value at 550 nm of 260 nm±40 nm. The display member according to claim 2, wherein the overlapping region has the overlapping region having a retardation value of 400 nm or more at 550 nm. In a state where the first laminated body and the second laminated body are laminated,
The boundary of the pattern region of the first pattern retardation film of the first laminate and the boundary of the pattern region of the second pattern retardation film of the second laminate are a plurality of locations, The display member according to any one of claims 1 to 5, which intersects. The display member according to any one of claims 1 to 6, wherein the first laminated body and the second laminated body are laminated with a gap of 1 mm or more. The display member according to claim 1, further comprising a moving unit that relatively moves the first stacked body and the second stacked body in a plane direction. The first patterned retardation film of the first laminate has two types of the pattern regions, and the slow axes of the two types of pattern regions are orthogonal to each other,
The second patterned retardation film of the second laminate has two types of the pattern regions, and the slow axes of the two types of the pattern regions are orthogonal to each other. The display member according to item 1. The first laminate includes a first transparent support on the surface of the first patterned retardation film opposite to the first polarizing plate,
The said 2nd laminated body is equipped with a 2nd transparent support body in the surface on the opposite side to the said 2nd polarizing plate of the said 2nd patterned retardation film, In any one of Claims 1-9. Display member described. The first transparent support of the first laminate and the second transparent support of the second laminate have in-plane retardation,
In the state where the first laminated body and the second laminated body are laminated, the slow axis of the first transparent support of the first laminated body and the second axis of the second laminated body The display member according to claim 10, wherein the slow axis of the transparent support is orthogonal to the slow axis. With the transmission axis of the first polarizing plate of the first laminated body and the transmission axis of the second polarizing plate of the second laminated body orthogonal to each other, the first laminated body and the second laminated body The display member according to any one of claims 1 to 11, wherein the display member is laminated. When the transmission axis of the first polarizing plate of the first laminated body and the transmission axis of the second polarizing plate of the second laminated body are parallel to each other, the first laminated body and the second laminated body The display member according to any one of claims 1 to 11, wherein the display member is laminated. A region in which the first laminate has a plurality of slow axis directions in the same plane at positions sandwiching the first polarizing plate together with the first patterned retardation film, and the slow axis directions coincide with each other. A third patterned retardation film provided with a patterned region formed by
A region in which the second laminate has a plurality of slow axis directions in the same plane at positions sandwiching the second polarizing plate together with the second patterned retardation film, and the slow axis directions coincide with each other. A fourth pattern retardation film provided with a pattern region formed by
The shape of the pattern region of the third patterned retardation film of the first laminate and the shape of the pattern region of the fourth patterned retardation film of the second laminate are different from each other. Item 14. The display member according to any one of items 1 to 13. In the first laminate, the shape of the pattern region of the first patterned retardation film and the shape of the pattern region of the third patterned retardation film are different from each other, and
The second laminated body has at least one of a configuration in which a shape of the pattern region of the second pattern retardation film and a shape of the pattern region of the fourth pattern retardation film are different from each other. The display member according to claim 14.