JP2022022466A - Illusional pattern sheet, illusional pattern sheet manufacturing method, and three-dimensional video display device - Google Patents

Abstract

To provide a three-dimensional video display device capable of creating stereoscopic effect and floating feeling of video display at low cost and by a simple method.SOLUTION: A three-dimensional video display device 1A includes a half mirror 12a in a box 11a. A video projection region is provided in the box 11a and a viewer can view two- to three-dimensional video through the half mirror 12a. An illusional pattern sheet 2A is provided on an inner wall surface and a floor surface of the box 11a in order to enhance stereoscopic effect of the video.SELECTED DRAWING: Figure 1

Description

The present invention relates to an illusion pattern sheet for producing a three-dimensional effect of a three-dimensional hologram, a method for manufacturing the illusion pattern sheet, and a three-dimensional image display device.

At exhibitions, museums, shows in various industrial fields, video demonstrations, hotel lounges, public facilities, etc., the number of places and opportunities to display 3D images by placing video table devices that perform 3D holograms is increasing.

It should be noted that in the method of assembling a foldable 3D display and a 3D display, the 3D display comprises at least one first image source and projects at least one image onto at least one translucent reflector. This creates at least one translucent reflector and a 3D object perceived in the space defined by the housing using Pepper's ghost technology, with the housing and translucent reflector being unleashed from each other. It is known that it is foldable and the like (see, for example, Patent Document 1).

Further, in the image display device, the image display device is placed between the three-dimensional object, both side walls extending forward from the three-dimensional object side on both sides of the three-dimensional object, and both side walls, and in front of the three-dimensional object. It has a transparent plate that is arranged so as to be inclined so that the lower end portion is located forward of the upper end portion, and both side walls support a mobile terminal provided with a display portion with the display portion facing downward. Etc. are known (see, for example, Patent Document 2).

European Patent Application Publication No. 2508933 Japanese Unexamined Patent Publication No. 2019-15980

In 3D video display devices such as those installed in exhibitions, museums, shows in various industrial fields, hotel lounges, public facilities, etc., space saving of installation space and enhancement of stereoscopic and realistic feeling of video images Equipment is required.

In addition, a small 3D image display device is required for personal hobby use and home entertainment use, and as an image projection device for displaying 3D images, a video display device such as a smart phone or a tablet PC is required. An information terminal or the like having the above is used. These users are also required to have a device that enhances the sense of presence and three-dimensionality.

The present inventor has been working on solving the following problems when displaying moving images / images using a smart phone, a tablet PC, an information terminal having a video display device, or the like in a three-dimensional video display device.

For example, in particular, in a three-dimensional image display device having only one half mirror or the like, there is a problem that a phenomenon that visually impairs a three-dimensional effect (3D effect) as described later occurs.

FIG. 21 is an example showing the shadow of the screen frame in the video display of the conventional 3D video display device 100, and FIG. 22 shows the shadow of the screen frame in the video display of the conventional 3D video display device 100. Another example.

The captured image of FIG. 21A is a state in which the monitor screen 410 of the smart phone 400 mounted on the top plate 150 of the box 110 is directed toward the opening 1320 in the three-dimensional image display device 100 shown in FIG. 21B. It is an image taken from the front of the box 110 in. Further, the captured image of FIG. 21 (a) is a box 110 of the three-dimensional image display device 100 (structure corresponding to FIG. 1) in which the viewing port (or viewing port) shown in FIG. 21 (b) is one port. It corresponds to the case that the inside is a plain 200, and is a photographed image when there is no illumination in the box 110.

As the state of the captured image in FIG. 21 (a), the one shown by the broken line arrow in FIG. 21 (b) is a half mirror in which the screen frame 1310 of the monitor screen 410 of the smart phone 400 mounted on the top plate 150 of the box 110 is a half mirror. It is shown in the figure that it is projected as a dashed shadow line (shadow) through 120. Since there is no lighting in the box 110 shown in FIG. 21A, only the screen frame 1310 of the smart phone 400, which is reflected by the external light emitted from the device, can be seen.

The captured image of FIG. 22A is in a state where the monitor screen 410 of the smart phone 400 is directed toward the opening 1320 in the three-dimensional image display device 100 shown in FIG. 22B, similarly to FIG. 21B. It is an image taken from the front of the box 110 of. Further, in the captured image of FIG. 22 (a), the inside of the box 110 of the three-dimensional image display device 100 (structure corresponding to FIG. 1) in which the viewing port shown in FIG. 22 (b) is one is plain 200. Yes, it is a photographed image when there is lighting in the box 110.

As the state of the captured image of FIG. 22 (a), the screen frame 1310 of the monitor screen 410 of the smartphone 400 is projected as a dashed shadow line (shadow) in the state shown by the broken line arrow of FIG. 22 (b). This is shown in the figure. Even when the inside of the box 110 shown in FIG. 22A is illuminated with illumination, the shadow line is visible in the black color of the plain 200 on the inner wall surface inside the box 110.

As described above, in the three-dimensional image display device 100, the shadow of the screen frame 1310 of the monitor screen 410 of the smart phone 400 is the shadow line shown in FIGS. 21 (b) and 22 (b) via the half mirror 120. If it is projected as a broken line), the viewer who visually recognizes the image projected from the monitor screen 410 of the smart phone 400 through the half mirror 120 loses the sense of depth in the box 110, and the two-dimensional image is lost. It gives the same impression as looking directly at (the feeling that the image is projected in the plane (inside the broken line frame)). That is, the stereoscopic effect as a three-dimensional image display is lost.

In particular, in the three-dimensional image display device 100 having a small box shape as shown in FIGS. 21 and 22, the entire image projection area of the box 110 is included in the viewing range of the viewer, so that the shadow of the screen frame 1310 is included. When projected on a line, there is a problem that the stereoscopic effect is significantly impaired and the image looks like a flat image.

Therefore, the problem to be solved by the present invention is an illusion pattern sheet, a method for manufacturing an illusion pattern sheet, and a three-dimensional effect capable of producing a three-dimensional effect and a floating feeling of an image display by a simple method at low cost. It is to provide a video display device.

In order to solve the above problems, the optical illusion pattern sheet according to the present invention is a plate used for an internal wall surface, a floor surface or a ceiling surface facing an image projection area of a three-dimensional image display device, or is arranged or attached to the plate. This is an optical illusion pattern sheet in which a predetermined illusion pattern is applied to the sheet material to be attached. In the optical illusion pattern sheet, the predetermined optical illusion pattern is a pattern in which at least a first pattern with a first color and a second pattern with a second color different from the first color are mixed. The shadow of the frame of the display screen that displays the image projection target of the 3D image display device or the shadow of the auxiliary equipment used for the 3D image display device, which is projected in the area of the above, is visually illusioned by the viewer. It is characterized by assimilating into a mixed pattern according to the viewing direction.

Further, in order to solve the above-mentioned problems, the method for manufacturing an optical illusion pattern sheet according to the present invention is a plate used for an internal wall surface, a floor surface or a ceiling surface facing an image projection area of a three-dimensional image display device, or the subject. It is a method for manufacturing the optical illusion pattern sheet, which comprises a decoration step of applying a predetermined illusion pattern to a sheet material to be arranged or attached to a board. The method for manufacturing the optical illusion pattern sheet includes a wall surface designation step of designating the internal wall surface, floor surface or ceiling surface to which the predetermined illusion pattern is applied, and adding an illusion pattern to the designated internal wall surface, floor surface or ceiling surface. A decoration range designation step for designating a range to be decorated, an optical illusion pattern designation step for designating the illusion pattern for each designated range to be decorated, and a color designation step for designating a color for each designated illusion pattern. After the completion of each of the designated steps, or after designating a designated pattern stored in advance or changing a part of the designated pattern, the decoration is applied to the board or the sheet material with the designated optical illusion pattern. It is characterized by including a process.

Further, in order to solve the above problems, the three-dimensional image display device according to the present invention has one or a plurality of half mirrors in the structure related to the box or the effect, and the image is projected in the structure related to the box or the effect. It is a three-dimensional image display device using the illusion pattern sheet which has a region and allows a viewer to visually recognize a three-dimensional image from a two-dimensional image through the one or a plurality of half mirrors. In the three-dimensional image display device, the optical illusion pattern sheet is used for the internal wall surface, floor surface, or ceiling surface of the box or the structure related to the effect facing the image projection area, and the optical illusion pattern sheet is used. A display that displays an image of the image projection target of the three-dimensional image display device, which is projected in the area of the pattern on which the predetermined illusion pattern is applied on the internal wall surface, floor surface, or ceiling surface of the box or the structure related to the effect. It is characterized in that the shadow of the frame of the screen or the shadow of the auxiliary equipment used in the three-dimensional image display device is assimilated into the pattern in the area of the pattern according to the visual illusion direction on the visual illusion of the viewer.

According to the illusion pattern sheet, the method for manufacturing the illusion pattern sheet, and the three-dimensional image display device according to the present invention, it is possible to produce a three-dimensional effect, a floating feeling, etc. of the image display by a simple method at low cost.

It is a figure which shows the structure of the 1st Embodiment of the 3D image display apparatus which concerns on this invention. It is a rear side perspective view of the state where the smart phone and the lighting equipment are attached to the 3D image display device of 1st Embodiment. It is an exploded view which shows the component structure of the 3D image display apparatus shown in FIG. It is a figure which shows the example of a plurality of illusion pattern sheets. It is an image (drawing substitute photograph) which shows an example of the prototype of the illusion pattern sheet shown in FIG. 4A. It is an image (drawing substitute photograph) which shows an example of the prototype of the illusion pattern sheet shown in FIG. 4 (b). It is a figure which shows an example of the structure of the 3D image display device of 2nd Embodiment. It is a verification image (drawing substitute photograph) which shows the influence degree of the lighting effect in the 3D image display apparatus of 2nd Embodiment. It is a verification image (drawing substitute photograph) which shows an example of the method of making an optical illusion pattern sheet. It is a verification image (drawing substitute photograph) of the pattern sheet (a) and the pattern sheet (b). It is a verification image (drawing substitute photograph) of the pattern sheet (c) and the pattern sheet (d). It is a verification image (drawing substitute photograph) of the pattern sheet (e) and the pattern sheet (f). It is a verification image (drawing substitute photograph) of the pattern sheet (g) and the pattern sheet (h). It is a verification image (drawing substitute photograph) of the pattern sheet (i) and the pattern sheet (j). It is a verification image (drawing substitute photograph) of the pattern sheet (k). This is an example of an image (drawing substitute photograph) displayed by a prototype device corresponding to the three-dimensional image display device of the second embodiment. It is a figure which shows an example of the structure of the 3D image display device of 3rd Embodiment. It is an image (drawing substitute photograph) which shows the example of the effect of the illusion pattern sheet in the 3D image display apparatus of 3rd Embodiment. It is a figure which shows the structure of the 3D image display device of 4th Embodiment, and the structure when a different pattern is attached to another 3D image display device of the same structure. It is an image (drawing substitute photograph) which shows the example of the effect of the illusion pattern sheet in the 3D image display apparatus of 4th Embodiment. This is an example (drawing substitute photograph) showing the shadow of the screen frame in the image display of the conventional three-dimensional image display device. This is another example (drawing substitute photograph) showing the shadow of the screen frame in the image display of the conventional three-dimensional image display device.

Hereinafter, the optical illusion pattern sheet, the method for manufacturing the optical illusion pattern sheet, and the three-dimensional image display device according to the present invention will be specifically described with reference to drawings, images, and the like. Here, common reference numerals are given to parts that are the same as or similar to each other, and duplicate description is omitted. The following embodiment described here will be described mainly by taking up an example of a three-dimensional video display device having one viewing port and a three-dimensional video display device having three viewing ports.

[First Embodiment]
Hereinafter, the first embodiment of the illusion pattern sheet and the three-dimensional image display device according to the present invention will be described with reference to FIGS. 1 to 6. Here, FIG. 1 is a diagram showing a configuration of a first embodiment of the three-dimensional image display device 1A according to the present invention. FIG. 2 is a rear perspective view of a state in which a smart phone 4A and a lighting fixture 3A are attached to the three-dimensional image display device 1A of the first embodiment. FIG. 3 is an exploded view showing a component configuration of the three-dimensional image display device 1A shown in FIG.

Further, FIG. 4 is a diagram showing an example of a plurality of optical illusion pattern sheets 2A and 2B. FIG. 5 is an image (drawing substitute photograph) showing an example of the prototype of the illusion pattern sheet 2A shown in FIG. 4A, and FIG. 6 is a prototype of the illusion pattern sheet 2B shown in FIG. 4B. It is an image (drawing substitute photograph) showing an example.

The configuration of the three-dimensional video display device 1A having one viewing port shown in FIG. 1 will be described below.
As shown in FIGS. 1 to 3, the three-dimensional image display device 1A of the present embodiment includes a box 11a, a half mirror 12a, a top plate 15a, and an optical illusion pattern sheet 2A.

The box 11a has a back plate on the back side, side plates connected to the left and right sides of the back plate, and side plates on the back plate and both left and right sides, assuming that one viewing port on the opening side (video viewing opening 111a) is the front. Consists of a pedestal to which is connected. The box 11a is surrounded by a back plate, side plates on both sides, and a pedestal, and is formed so as to have an image display space inside.

As shown in FIGS. 1 and 3, an optical illusion pattern sheet 2A is mounted in the box 11a. A state in which the monitor screen 41a of the display device 4A (for example, the smart phone 4A shown in FIG. 1) having the monitor screen 41a for displaying a two-dimensional image of the projection target is directed toward the pedestal on the top plate 15a covering the upper part of the box 11a. A projection opening 152a is provided in the top plate frame 151a that can support the display device 4A. Further, the top plate 15a is provided with a lighting opening 154a in which a lighting fixture 3A capable of illuminating the inside of the box 11a can be installed.

The half mirror 12a is inserted through the half mirror insertion opening 153a of the top plate 15a, and the upper end side of the mirror fixing frame 121a partially protrudes from the half mirror insertion opening 153a, and the lower end side of the mirror fixing frame 121a is the pedestal of the box 11a. It is locked to the mirror locking portion 112a provided in the above. As a result, the half mirror 12a is arranged at an inclination angle of approximately 45 ° (within a range of about 40 ° to 50 °) with respect to the pedestal of the box 11a.

When the half mirror 12a has a structure that can be inserted and removed from the half mirror insertion opening 153a as shown in FIG. 1, for example, when an object such as a doll or a model is displayed in the box 11a, it can be easily exchanged. be able to. In the example of the structure of the half mirror 12 shown in FIGS. 1 to 3, the half mirror 12a is shown as a structure in which the half mirror 12a can be inserted and removed, but the half mirror 12a is fixed to the floor surface such as the box 11a so as to have an inclination angle of 45 °. It may be a structure to be split.

The translucent material 122a of the half mirror 12a used in the present embodiment has functions of transmitting and reflecting light in order to obtain a three-dimensional stereoscopic image in the image space, and for example, glass, acrylic plate, polycarbonate, or the like is used. be able to. In the half mirror 12a, the translucent material 122a is fitted into the mirror fixing frame 121a.

In the 3D image display device 1A shown in FIG. 1 and the like, a lighting device 3A and a display device of a smart phone 4A are used as other necessary devices. These necessary devices are arranged at predetermined positions on the top plate 15a.

On the top plate 15a, for example, a box with a projection opening 152a and a lighting fixture 3A on a top plate frame 151a capable of supporting the smart phone 4A with the monitor screen 41a of the smart phone 4A facing the pedestal side as a display device. An illumination opening 154a that can illuminate the inside of 11a is provided.

As shown in FIG. 2, when the 3D image display device 1A is used, a projection device such as a smart phone 4A is arranged on the box 11a, the screen is directed to the projection opening 152a, and the principle of light refrigeration and mirror image formation is achieved. Is used to generate a three-dimensional stereoscopic image by passing the inverted image of the image displayed from the monitor screen 41a of the smart phone 4A through the half mirror 12a.

<About the illusion effect of "illusion pattern + lighting">
With the above configuration, the illusion pattern sheet 2A according to the present embodiment visually recognizes the illusion pattern by the illusion pattern sheet 2A and the virtual image of the three-dimensional image display device 1A of the half mirror 12a via the half mirror 12a. When the shadow of the frame of the monitor screen 41a is projected on the illusion pattern applied to the illusion pattern sheet 2A to the viewer viewed from a possible viewing direction, the monitor screen 41a is visually displayed in the illusion pattern. It does not recognize the shadow of the frame.

For example, as an example of the optical illusion pattern sheet 2A, as an optical illusion pattern having an optical illusion effect in a predetermined range of the box 11a, it can be decorated with an alternating pattern of a bright pattern and a dark pattern, and a surface is formed on the image projection area in the box 11a. When the shadow of the frame of the monitor screen 41a is projected on the illusion pattern applied to the optical illusion pattern sheet 2A, the shadow of the frame of the monitor screen 41a is cast in the illusion pattern from the direction in which the viewer sees. Will not be recognized. In other words, in the illusion pattern sheet 2A, the illusion pattern is assimilated according to the viewing direction on the viewer's visual sense.

In the three-dimensional image display device 1A, the inner sheet (illusion pattern sheet) 2A has an illusion effect as described later. It was confirmed that it disappeared visually.

For example, if there is a pattern with clear light and darkness even if it is not a checkered pattern, or if there is a certain rule that reflects light in white, the same effect can be obtained in addition to the checkered pattern. For example, it was verified that even if an intricate pattern such as a flower pattern is included in the optical illusion pattern sheet 2B, an optical illusion effect can be obtained if the design has a difference in brightness (a pattern with high contrast).

The present inventor visually adjusts the focus when the shadow of the frame of the monitor screen having a low contrast ratio is projected in the range of a pattern having a high contrast ratio of light and dark (referred to as an optical illusion pattern). It is presumed that the shadow of the frame on the monitor screen cannot be visually recognized because the pattern is emphasized.

A lighting opening 154a that illuminates the inside of the box 11a is opened in the top plate 15a. For example, a lighting fixture 3A (for example, LED lighting) is arranged here to brighten the inside of the box 11a. The characteristic of holograms is that the image can be seen floating by recognizing the interior space with a sense of depth with the naked eye and projecting the image in the center.

A portion having a specific pattern (a pattern having an optical illusion effect) on the floor surface, side wall surface, and back wall in the box 11a as in the photographed image of the prototype shown in FIG. 5 corresponding to FIG. 4 (a). There is an effect of visually canceling that the edge of the opening frame of the top plate 15a is reflected on the half mirror 12a in this area.

For example, in the illusion pattern sheet 2A of the first embodiment, as shown in FIGS. 4 (a) and 5, the first illusion pattern 221a on the floor surface 21a, the first illusion pattern 221a on the back plate 22a, and the first illusion pattern 22a. It is composed of two illusion patterns 223a, a non-patterned range 222a, and a first illusion pattern 221a of a side plate 23a and a side plate 24a. With the above-mentioned optical illusion pattern sheet 2A, the shadow line of the screen frame can be canceled by the optical illusion effect.

When the lighting fixture 3A is not illuminated from the lighting opening 154a, the frame line in this area can be clearly seen with the naked eye, giving an impression without a sense of depth, and thus the stereoscopic effect required for the 3D hologram is lost. ..

(1) When lighting is used In the photograph of the prototype, LED lighting is arranged as a lighting fixture 3A in the lighting opening 154a opened in the top plate 15a to illuminate the inside of the box 11a. The luminaire 3A is not limited to LED lighting, and may be another luminaire having a brightness that illuminates the inside of the box 11a. The color of the illumination light may be colored lighting such as red or blue, but it should be noted that the illusion effect may be diminished due to the relationship with the color of the illusion pattern. The color of the illumination light is preferably close to white.

For example, in the 1-port viewing (or visual) 3D image display device 1A, since the stage is closed except for the front viewing opening portion in the box 11a, the inside of the box 11a becomes almost pitch black when there is no lighting. ..

Even if an image is projected in total darkness as in the verification image shown in FIG. 8A, only a two-dimensional image is projected, and a three-dimensional floating feeling like a hologram cannot be visually felt.

By illuminating the inside of the box 11a or 11b with illumination as shown in the verification images shown in FIGS. 9 (b) and 16, the depth and width are visually recognized, and the image is projected in the center of the space. By doing so, it is possible to produce a floating object. Further, there is also an effect that the screen frame of the monitor screen 41a of the smart phone 4A or the like is not projected as a frame line due to the optical illusion effect of the optical illusion pattern.

-Regarding the lighting opening 154a In order to illuminate the darkness inside the box 11a of the 3D image display device 1A brighter than a certain level, it is necessary to arrange a lighting fixture 3A such as an LED lighting tool in the lighting opening 154a. By strongly illuminating the inside of the box 11a, the colors and patterns (referred to as design) having an optical illusion effect including the checkered pattern are brightly illuminated, and the display screen of the display device 4A reflected on the floor surface, the half mirror 12a, etc. An effect (called an optical illusion effect) that makes the frame invisible occurs.

(2) About the screen frame adapters 13a and 14a of the top plate 15a The opening 132a of the screen frame adapter 13a and the opening 142a of the screen frame adapter 14a are formed so that the opening sizes are different. For example, the screen size of the smart phone 4A ranges from a small one to a somewhat large one. Therefore, although there are restrictions on the model of the smart phone 4A that can be used as a hologram, some screen frame adapters are provided in the projection opening 152a so that a plurality of types of smart phones 4A can be covered by the 3D image display device 1A. 13a and 14a (two or more types of opening sizes) are prepared and can be exchanged.

The screen frame 131a or 141a of the screen frame adapter 13a or 14a for arranging the smart phone 4A is associated with lighting. If the inside of the box 11a is dark, the screen frame 131a or 141a of the screen frame adapter 13a or 14a will also be reflected on the projection surface. To put it in the extreme, it gives the impression that it is no different from directly viewing the two-dimensional image of the monitor screen 41a of the smartphone 4A. That is, the stereoscopic effect as a 3D image is lost.

In the three-dimensional image display device 1A of the present embodiment, the inside of the box 11a can be further brightened by attaching the lighting fixture 3A, and the synergistic effect between the design having an optical illusion effect (optical illusion pattern) and the lighting can be enhanced. Due to the synergistic effect as described above, the width and height of the inside of the box 11a can be widened to further increase the internal space. This was achieved by applying a technology that does not project the screen frame of the video display device (smartphone 4A) on the projection surface (eliminates the shadow line).

Further, there is another reason to provide a replaceable screen frame adapter 13a or 14a on the top plate 15a. It is necessary to devise a way to prevent the color of the main body case from being reflected on the projection surface even when the color of the main body case of the smart phone 4A is close to the periphery of the monitor.

For example, if the color of the black body case makes the screen black, there is no problem, but if the color of the white body case is used, this white part will be reflected on the projection surface, and the three-dimensional effect as a hologram will be lost.

In order to prevent this, by preparing two or more types of screen frame adapters 13a or 14a so that they can be replaced, the 3D image display device 1A of the same shape and size can be used regardless of the manufacturer of the smartphone 4A. It can support a plurality of types of smart phones 4A.

The three-dimensional image display device 1A is projected into the area of the pattern on which the predetermined illusion pattern is applied on the inner wall surface and the floor surface (or the ceiling surface) of the box in which the illusion pattern sheet 2A is used. Form not only the shadow of the frame of the display screen (for example, screen frame adapter 13a or 14a) that displays the image of the image projection target, but also other possible stage spaces (for example, the stage provided in the theater or performance place). The shadow of auxiliary equipment (fixing wires for stage equipment, cable racks, etc.) used in 3D image display devices that use (the space inside the structure related to the production) as the image projection space, is viewed in the visual illusion direction. It is also possible to assimilate the pattern in the area of the pattern according to the above.

(3) Inner sheet (Illusion pattern sheet 2A or 2B can be replaced)
Preferably, the illusion pattern sheet 2A or 2B shown in FIGS. 3 and 4 and the like can be interchangeably stored in the box 11a or 11b, and is used for the sheet material used for the pedestal and at least the side plate or the back plate. It is a replaceable inner sheet that is connected to the sheet material to be used.

For example, for the interior (illusion pattern) of the box 11a shown in FIG. 3, replaceable inner sheets, for example, the illusion pattern sheets 2A and 2B as shown in FIG. 4 are provided. So-called multiple illusion pattern sheets 2A and 2B can be dressed up. The fact that the interior of the box 11a can be easily replaced is a flexible three-dimensional image display device 1A and 1B that can be fitted to the design of any industry or world view.

In addition to the above-mentioned dress-up method, an illusion pattern may be added to the plate material such as the floor, the side wall, and the back wall constituting the box 11a by color printing, sticking a sticker, or the like. Further, spray painting using a pattern frame or the like, coloring or patterning in which some of these may be combined may be used.

Further, as the material of the box 11a, paper, plastic, wood, metal material or the like, or a combination thereof may be used.

As described above, according to the illusion pattern sheet and the three-dimensional image display device of the embodiment, it is possible to produce a three-dimensional effect, a floating feeling, and the like of the image display by a simple method at low cost.

[Second Embodiment]
Hereinafter, the optical illusion pattern sheet, the method for manufacturing the optical illusion pattern sheet, and the second embodiment of the three-dimensional image display device according to the present invention will be described with reference to FIGS. 7 to 16. Here, FIG. 7 is a diagram showing an example of the configuration of the three-dimensional image display device 1B of the second embodiment. FIG. 14 is an example of an image (drawing substitute photograph) displayed by the prototype device corresponding to the three-dimensional image display device 1B of the second embodiment.

In FIGS. 10 to 15, the illusion pattern sheet 2B of the prototype corresponding to the three-dimensional image display device 1B shown in FIG. 16 is replaced with the pattern sheets (a) to (k), and the result of displaying the image is photographed. It is a verification image (photograph substitute for drawing).

<About the illusion effect of "illusion pattern + lighting + stage (step)">
The 3D image display device 1B shown in FIG. 7 has the same structure as the 3D image display device 1A shown in FIGS. 1 to 3, and the illusion pattern sheet 2A shown in FIG. 1 and the like is shown in FIG. 4 (b). It is replaced with the illusion pattern sheet 2B.

The three-dimensional image display device 1B shown in FIG. 7 includes a box 11b, a half mirror 12b, a top plate 15b, and an optical illusion pattern sheet 2B, and further, a screen frame adapter 13b is arranged on the top plate 15b. The smart phone 4B is placed on the top plate 15b. A lighting fixture (lighting fixture 3A) similar to that shown in FIG. 2 is also attached.

The three-dimensional image display device 1B shown in FIG. 7 is a view in the line-of-sight direction from a slightly lower side of the front viewing port. For example, FIG. 7 shows how the screen frame 131b of the screen frame adapter 13b and its opening 132b are visible.

(1) Stage (step)
For example, in the three-dimensional image display device 1B shown in FIG. 7, when a person or an object to be a virtual image is to be placed on the stage 21b in the box 11b, if a shadow is cast on the stage floor, an object is placed on the upper part of the shadow. Can give a visual effect as there is. On the other hand, when the shadow reflected on the floor is projected on the lower side (the side corresponding to the lower side when viewed from the viewing port) of the monitor screen 41b of the smart phone 4B (in addition to this, a PC monitor, a TV monitor, etc.), a virtual image is projected. The foot of the target person or the like must be placed at a distance from the lower side of the monitor screen 41b.

In that case, in order to make the person appear to be standing on the stage 21b, it is more preferable to raise the floor height 25b in the box 11b as shown in the illusion pattern sheet 2B of FIG. 4 (b). A column of seats corresponding to a stage is provided in the box 11b.

Further, when the line of the screen frame 131b provided on the screen frame adapter 13b on the upper part of the box 11b is reflected on the stage 21b, the three-dimensional image characteristic of the hologram is visually felt as a flat object. Therefore (loss of stereoscopic effect), it is also effective in increasing the distance between the monitor end face and the person's feet.

In the optical illusion pattern sheet 2B shown in FIGS. 4 (b) and 6, the floor (floor surface 26b) of the box 11b is used to create a state in which a person, an animated character, or the like stands or walks on the image display target. The floor height 25b is raised to provide a stage 21b. It is possible to make it look like you are standing or walking on the floor without the stage 21b. However, when the foot of the person in the image display is close to the screen frame 131b, the screen line on the screen weakens the stereoscopic effect.

Further, for example, although the shadow line can be erased by the illusion effect of the illusion pattern sheet 2A of the first embodiment, the illusion pattern sheet 2A shown in FIGS. 4A and 5 has an illusion pattern on the entire floor surface. Therefore, for example, the foot of a person projected on the half mirror 12a is also covered with an optical illusion pattern, which makes it difficult to clearly express the projected image itself.

Therefore, in the illusion pattern sheet 2B of the second embodiment shown in FIGS. 4 (b) and 6, the floor height 25b is physically raised in the box 11b rather than the floor surface 26b as in the stage 21b. Moreover, since the stage 21b is provided with the non-patterned range 212b, the distance between the screen frame 131b and the feet of the person reflected in the virtual image can be increased.

Further, the illusion pattern sheet 2B of the second embodiment comprises the first illusion pattern 211b and the second illusion pattern 213b of the stage 21b, and the third illusion pattern 221b and the fourth illusion pattern 223b of the back plate 22b. .. With the above-mentioned optical illusion pattern sheet 2B, the shadow line of the screen frame 131b can be canceled by the optical illusion effect.

In addition, the non-patterned range 212b of the stage 21b and the non-patterned range 222b of the back plate 22b allow the human body, feet, etc. to be clearly projected in an image, so that a three-dimensional effect and a dynamic feeling can be felt as a 3D hologram. The effect of can be maximized.

As described above, strong light (illumination) is required so that the optical illusion pattern can be clearly confirmed with the naked eye in the box 11b, and illumination is required for that purpose. The top plate 15b is provided with not only an opening but also a lighting opening (corresponding to the lighting opening 154a in FIG. 2) for attaching a lighting fixture (corresponding to the lighting fixture 3A in FIG. 2) that enhances the optical illusion effect. There is.

Next, the contents confirmed based on the verification images of FIGS. 8 (a) and 8 (b) and FIG. 9 (a) to see what the "illusion effect with / without" and "with / without illumination" look like. Will be explained. 8 (a) and 8 (b) and 9 (a) are verification images (drawing substitute photographs) showing the degree of influence of the lighting effect in the three-dimensional image display device 1B of the second embodiment. Further, FIG. 9B is a verification image (drawing substitute photograph) showing an example of a method for creating the illusion pattern sheet 2B. The shadow line of the screen frame of the monitor screen 41b of the smart phone 4B is projected on the portion indicated by the white arrow in the verification image.

(B) In the case of only natural light in the daylighting section FIG. 8A shows a state in which natural light is taken in by opening a daylighting hole without illuminating the design with an optical illusion effect. Of course, since the amount of light is insufficient, the shadow line of the frame of the monitor screen 41b of the smartphone 4B can be confirmed.
(B) When the lighting is dark FIG. 8B is a design having an optical illusion effect, but when the lighting is dark, the shadow line of the frame of the monitor screen 41b of the smartphone 4B can be slightly confirmed with the naked eye.

(C) When the lighting is bright In FIG. 9A, when the design has an optical illusion effect and the lighting is applied, the shadow line of the frame of the monitor screen 41b of the smart phone 4B is almost invisible. If the hologram image is displayed, you can concentrate on the hologram without worrying about the shadow lines. It was found that making the pattern look bright and clear further enhances the optical illusion effect.

<Manufacturing method of optical illusion pattern sheet>
In the 3D image display device 1B shown in FIGS. 6 and 7, the illusion pattern that has the effect of enhancing the stereoscopic effect of the 3D hologram with respect to the lighting, the design of the floor and the wall surface, and the installation of the stage will be described later in "The illusion pattern sheet. An example of "manufacturing method" is shown.

For example, as one of the manufacturing examples of the illusion pattern sheet 2B of the three-dimensional image display device 1B, the following illusion pattern sheet manufacturing program in which the "method of manufacturing the illusion pattern sheet" is installed on a PC (personal computer) or the like is installed. to start.

After the illusion pattern sheet manufacturing program is started, it is assumed that a screen as shown in FIG. 9B is displayed on the display screen as a photographed image of a PC having a camera or a PC capable of communicating with a device having a camera.
(I) A display color capable of clearly showing the size outline of the monitor 41b as shown in FIG. 9B on the monitor screen 41b of the smart phone 4B set in the three-dimensional image display device 1B shown in FIG. 7 (i). Displays the two-dimensional image display frame 411b.
(Ii) A subject as shown in FIG. 9B is projected on the shooting screen of the camera through the half mirror 12b of the three-dimensional image display device 1B. In the captured image shown in FIG. 9B, the two-dimensional image display frame 411b on the monitor screen 41b is projected via the half mirror 12b, and the projection display 421b can be visually recognized from the viewing port in the imaging direction.

(Iii) In the PC for activating the illusion pattern sheet manufacturing program, a range for decorating one or a plurality of illusion patterns is set for the sheet material to be manufactured with reference to the projection display 421b from the captured image data.
For example, in the above (i) to (iii), the illusion pattern sheet manufacturing program should include the following steps (steps).-Specify the internal wall surface, floor surface, or ceiling surface to which the predetermined illusion pattern is applied. Wall surface designation process ・ Decoration range designation process to specify the range to decorate the illusion pattern on the designated internal wall surface, floor surface or ceiling surface

(Iv) Select a pattern and a color to be printed from the illusion pattern patterns stored in the storage device or the like in advance (a plurality of illusion pattern patterns having an illusion effect are stored in the storage device, the storage medium, or the like in advance).
For example, in the example of the image of FIG. 9B, a square checkered pattern of a platinum-colored pattern selected from illusion pattern patterns having an illusion effect previously stored in a storage device, a storage medium, or the like (for example, FIG. 6 (for example). The third illusion pattern 221b) shown in a) and the golden snow crystal pattern (for example, the fourth illusion pattern 223b shown in FIG. 6A) are attached.
For example, in the above (iv) or the like, the following steps (steps) are provided in the optical illusion pattern sheet manufacturing program.
-Illusion pattern specification process that specifies an illusion pattern for each specified decoration range-Color specification process that specifies a color for each specified illusion pattern

(V) When creating a range expressing the stage depth, select a color within that range (the base paper color of the sheet may be specified). Further, the optical illusion pattern to be added may be selected or changed within a part of the range.

(Vi) Further, it is possible to set or change an illusion pattern and a non-patterned portion in a portion outside the range of the projection display 421b as shown in FIG. 9B, for example.
For example, a snowflake pattern (for example, the second optical illusion pattern 213b shown in FIG. 6B) is patterned so as to surround the black stage in the central portion of the floor surface (the non-patterned area 212b shown in FIG. 6B). Is attached.
For example, in the above (v), (vi) and the like, the following steps (steps) are included in the optical illusion pattern sheet manufacturing program.
-A decoration process in which the specified illusion pattern is applied to the sheet material after the completion of each designated process, or after designating a designated pattern stored in advance or changing a part of the designated pattern.

(Vii) After setting the designated pattern of the illusion pattern sheet 2B by the illusion pattern sheet manufacturing program, for example, the print sheet is set in the color printer communicable with the PC, and the illusion pattern sheet 2B is colored on the print sheet. It will be printed. For example, on the developed view, a flat layout is drawn in which the left and right wall surfaces are connected to the floor surface and the back surface is connected, and the print sheet is decorated with patterns and colors according to the above settings, and can be cut off. A line is provided, etc.

As described above, if the printed sheet manufactured on the developed view is cut along the cut line, the printed sheet can be assembled as shown in FIG. 4 if the printed sheet is paper. Further, in the case of a seal or the like, the cut seal can be attached to the inside of the box 11b after cutting.

According to the method for manufacturing the optical illusion pattern sheet of the embodiment, the optical illusion pattern sheet can be manufactured at low cost and by a simple method. Further, as described above, according to the optical illusion pattern sheet of the embodiment, it is possible to produce a stereoscopic effect, a floating feeling, and the like of the image display in the three-dimensional image display device by a simple method at low cost.

Here, for example, in order to select a plurality of illusion pattern patterns, colors, etc. in advance and store them in a storage device or the like in advance, refer to the following verification experiments and the results, etc., which serve as selection criteria. And.

<Comparative verification experiment of various patterns>
10 to 15 show, for example, a specific pattern for verifying the right half surface side of the area corresponding to the illusion pattern sheet 2B toward the viewing port on the front of the three-dimensional image display device 1B shown in FIG. , Shows an image of a virtual image taken when the left half is unpatterned. Further, in the shooting conditions of the stereoscopic image display device 1B shown in FIGS. 10 to 15, the brightness of the lighting in the box 11b (the lighting of the lighting fixture corresponding to the lighting fixture 3A of FIG. 2) is the same brightness condition. It is supposed to be.

FIG. 10 is a verification image (drawing substitute photograph) of the pattern sheet (a) and the pattern sheet (b), FIG. 11 is a verification image (drawing substitute photograph) of the pattern sheet (c) and the pattern sheet (d), and FIG. 12 is a pattern. It is a verification image (drawing substitute photograph) of a sheet (e) and a pattern sheet (f). Further, FIG. 13 is a verification image (drawing substitute photograph) of the pattern sheet (g) and the pattern sheet (h), and FIG. 14 is a verification image (drawing substitute photograph) of the pattern sheet (i) and the pattern sheet (j). Is a verification image (drawing substitute photograph) of the pattern sheet (k).

In some of FIGS. 10 to 15, the shadow line of the screen frame of the smart phone can be confirmed at the position pointed by the white arrow in the image. Here, as a relative evaluation of these images, the applicant marks the case where the image can be concentrated on the projected image without worrying about the shadow line, and the projected image looks flat due to the influence of the shadow line. The evaluation of the case was set to x, and the evaluation of the case where some people were interested and some people were not interested was judged to be Δ.

The drawing-substituting photographs of the pattern sheets (a) to (k) actually taken in FIGS. 10 to 15 were taken in color, but in the drawings according to the present application, they were converted into grayscale images. is doing. In addition, the color image of the drawing substitute photograph is separately submitted as a reference material, etc. by the property submission form.

<Verification results>
In multiple patterns, the "combination of bright colors" with respect to the pattern color and background color has the effect of erasing the shadow lines. "Combination of bright and dark colors" uses more than half of the bright colors, and if the bright and dark colors are scattered in the same size at the adjacent positions, the shadow line can be erased.

When the bright color is changed to a single color, the effect of erasing the shadow line disappears as the brightness of the illumination becomes insufficient. To solve this problem, a pattern that combines bright colors enhances the effect of erasing the shadow lines.

(A) Verification image_0: Evaluation × No illumination, black and no pattern (shown in FIG. 10A).
In the "dark" background of the verification image_0 shown in FIG. 10A, when there is no pattern, there is no effect of erasing the shadow line.

(B) Verification image_1: Evaluation × A combination of “dark color” and “dark color”, which is a dark gray diagonal intricate pattern and a black background (shown in FIG. 10 (b)).
The "dark color combination" of the verification image _1 shown in FIG. 10B has no effect of erasing the shadow line.

(C) Verification image _2: Evaluation × A combination of "bright color" and "dark color", which has a large area of dark color, a round pattern with bright color (yellow), and a background with dark color (black). (Shown in FIG. 11 (c)).
The verification image _2 shown in FIG. 11C has no effect of erasing the shadow line when the area of the dark color is large due to the combination of the “bright color” and the “dark color”. For example, in "combination of light color and dark color", dark color is less than light color, and even if light color and dark color are placed next to each other, if the area of dark color is large, the shadow line is visible in dark color. There is no effect of erasing the shadow line.

(D) Verification image_3: Evaluation ○ The combination of "bright color" and "dark color" has a large area of bright color, a bright color (yellow) background, and a dark color (black) hooves mark pattern (). (Shown in FIG. 11 (d)).
The verification image_3 shown in FIG. 11D has an effect of combining "bright color" and "dark color" and erasing the shadow line when the area of the bright color is large.

(E) Verification image_4: Evaluation ○ A combination of "bright color" and "dark color", both of which have an equal area and a combination of bright color (white) and dark color (black) checkered pattern (Fig. 12). (E).
The verification image_4 shown in FIG. 12 (e) is a combination of "bright color" and "dark color", and both have the effect of erasing the shadow line even when the area is equal.

(F) Verification image_5: Evaluation ○ It is a combination of a checkered pattern of “bright color” (white) and “bright color” (pink) (shown in FIG. 12 (f)).
In the (f) verification image_5 shown in FIG. 12, in the case of a combination of "bright color" and "bright color" (combination of a checkered pattern of bright color (white) and bright color (pink)), a shadow line is provided. It has the effect of erasing. Initially, I thought that the larger the contrast difference between different colors, the more effective it would be to erase the shadow lines. For example, I thought that the combination of bright and dark colors would be the most effective result. (F) Verification image It was confirmed that bright colors such as _5 are effective even if the contrast difference is not large.

(G) Verification image_6: Evaluation ○ With a combination of "bright colors of multiple colors" and "dark colors of multiple colors", there are many bright colors, a bright color (light blue) background, and multiple bright colors and multiple dark colors. It is a combination of large-colored animal face character patterns and is bright overall (shown in FIG. 13 (g)).
The verification image_6 shown in FIG. 13 (g) is a combination of a bright color (light blue) background and a large animal face character pattern of a plurality of light colors and a plurality of dark colors. effective.

(H) Verification image_7: Evaluation × A combination of “a plurality of bright colors” and “a plurality of dark colors” (shown in FIG. 13 (h)).
On the other hand, the verification image_7 shown in FIG. 13 (h) has many dark colors, and has a dark color (green) background and a plurality of dark colors (dark green and brown of the Christmas tree pattern, red of the socks pattern, etc.). The combination of small patterns and small patterns of multiple bright colors (yellow with stars and bells, white with socks and boxes, etc.) is dark overall and has no effect on eliminating shadow lines.

(I) Verification image_8: Evaluation △ A combination of "bright colors of multiple colors" and "dark colors of multiple colors", with an even arrangement of bright and dark colors, a dark (black) background, and multiple bright colors. It is a combination of a large flower pattern of a plurality of dark colors (shown in FIG. 14 (i)).
The verification image_8 shown in FIG. 14 (i) is a combination of "bright colors of a plurality of colors" and "dark colors of a plurality of colors", and has a dark background (dark blue) and a plurality of colors as an arrangement of colors having equal brightness and darkness. It is a combination of bright colors and large floral patterns of multiple dark colors, and has the effect of erasing slightly shaded lines. If the pattern of "multiple bright colors" and "multiple dark colors" is mixed to reduce the area of the dark background (dark blue), the shaded lines become difficult to see. It is considered that the size / distance of the background and the pattern (pattern), the positional relationship, etc. also affect the optical illusion effect. If the pattern is designed so that bright colors and dark colors are alternately arranged including the background so that there are many bright colors, it is considered that the optical illusion effect can be easily obtained.

(J) Verification image_9: Evaluation × “Only one dark color”, which is a background of a slightly dark color (dark blue) (shown in FIG. 14 (j)).
Further, the verification image_9 shown in FIG. 14 (j) is "only one dark color" (background), is dark as a whole, and has no effect of erasing the shadow line.

(K) Verification image_10: Evaluation Δ “Only one bright color” is a background of a bright color (gold) (shown in FIG. 15 (k)).
The verification image_10 shown in FIG. 15 (k) is "only one bright color" (background), is bright as a whole, and has an effect of erasing a slightly shaded line.

From the above verification results of the combination of single color and pattern, multiple colors and multiple patterns, as a pattern with the effect of erasing the shadow line (illusion effect) (illusion pattern) and a pattern without the illusion effect. , The following outline classification can be considered.
(I) In the case of a pattern of a combination of "bright color" and "dark color" (for example, white + black), when the contrast ratio is high, the optical illusion effect is high.
(II) In the case of a pattern in which a "bright color" and a "bright different color" are combined (for example, white + light blue), there is an optical illusion effect even when the contrast ratio is low.
(III) In the case of a pattern in which a "dark color" and a "dark different color" are combined (for example, black + blue) and the contrast ratio is low, there is no optical illusion effect.

The predetermined illusion pattern applied to the illusion pattern sheet 2B or the like is a mixture of a first pattern having at least the first color and a second pattern having a second color different from the first color. The shadow of the frame of the display screen (monitor screen 41b) that displays the image projection target of the 3D image display device 1B projected in the area of the pattern, or the auxiliary equipment used for the 3D image display device 1B (for example). The shadow of the screen frame adapter 13b or the like) is assimilated into a mixed pattern according to the viewing direction on the viewer's visual sense.

For example, the predetermined illusion pattern is at least the first color in the case of the above-mentioned (I) pattern of a combination of "bright color" and "dark color" (for example, white + black) and when the contrast ratio is high. The contrast ratio between the first bright pattern and the first dark pattern in the first bright pattern with a mark and the first dark pattern with a second color different from the first color is increased. It is a pattern in which the pattern and the first dark pattern are mixed.

Further, for example, the predetermined illusion pattern is a pattern in which the above-mentioned (II) "bright color" and "bright different color" are combined (for example, white + light blue), and even if the contrast ratio is low, at least the first pattern is used. It is a pattern in which the second bright pattern and the third bright pattern are mixed by the second bright pattern with the color 3 and the third bright pattern with the fourth color different from the third color.

When combining dark colors, use bright colors in equal or better proportions and increase the contrast ratio of adjacent colors. When bright colors are adjacent, it can be used even if the contrast ratio is not high. On the other hand, if the area of the dark color is too large, the effect of erasing the shadow line is low even if the adjacent color is bright, so it is preferable to adjacent the colors as finely as possible.

No matter how bright the color is, the effect will be low unless it is illuminated with sufficient lighting. In "bright colors", the reflection of light increases depending on the "brightness of lighting", and the effect of eliminating shadow lines tends to increase. Even if the "dark color" increases the "brightness of illumination", the effect of eliminating the shadow line tends to be low because the light is absorbed and the reflection is small. Therefore, in addition to the color illusion effect, it is considered that the lighting inside the box also has an element to enhance the illusion effect.

It is also considered that the area of the adjacent color is equal to or smaller than that of the bright color based on the bright color. It is pulled by a bright color and the shadow line of the next color disappears, but when the area of the next color becomes large, the effect of pulling to a bright color diminishes.

Here, "erasing the shadow line" is considered to visually assimilate the shadow projected in the region of the mixed pattern into the mixed pattern. For, color is a signal produced in the brain that relies solely on visual information. That is, it is considered that the shadow projected in the region of this mixed pattern is assimilated and captured as the color signal processed by the brain.

Further, with respect to the illusion pattern sheet 2B shown in FIGS. 6 to 8, for example, as in the example shown in FIG. 16, only the portion where the shadow line is reflected is made into an illusion pattern, and the portion where the image is projected is made a dark color for projection. It can be said that the effect of the 3D hologram is enhanced because the resulting image becomes clearer and the floating feeling increases.

As described above, according to the illusion pattern sheet of the embodiment, the method of manufacturing the illusion pattern sheet, and the three-dimensional image display device, a low-cost and simple method is used to produce a three-dimensional effect and a floating feeling of the image display. can do.

[Third Embodiment]
Hereinafter, a third embodiment of the illusion pattern sheet and the three-dimensional image display device 1C according to the present invention will be described with reference to FIGS. 17 and 18. Here, FIG. 17 is a diagram showing an example of the configuration of the three-dimensional image display device 1C according to the third embodiment. FIG. 18 is an image (drawing substitute photograph) showing an example of the effect of the illusion pattern sheet in the three-dimensional image display device 1C of the third embodiment.

In the configurations of the three-dimensional image display devices 1A and 1B of the first and second embodiments, the display devices 4A and 4B are mainly targeted at relatively small mobile information terminals such as smart phones, tablet terminals and the like. Is assumed. On the other hand, in the configuration of the three-dimensional image display device 1C shown in FIG. 17, as a display device, a monitor device 4C having a monitor screen of a medium-sized or large size, which is mainly connected to a computer or the like or has a built-in computer, is used. For example, the shape of the box 11c also has a width, a depth, a height, and the like of about 40 cm to 1 m and several tens of cm.

The three-dimensional image display device 1C shown in FIG. 17 mainly includes a box-shaped box 11c, a half mirror 12c leaned against a pedestal in the box 11c at an inclination angle of approximately 45 °, and further includes a box 11c. It is configured to include a lighting fixture 3C and a monitoring device 4C inside. Further, for comparative verification, the area of the floor surface in the box 11c was divided in half, and both an illusion pattern (referred to as an illusion pattern sheet 2C) and an unpatterned pattern (referred to as a patternless sheet 2X) were applied. It is a thing.

For example, an EVAROO ZT27 (manufactured by RSK Co., Ltd.) is used as a device corresponding to the 3D image display device 1C shown in FIG. 17, and an image of the 3D image display shown in FIG. 18 is taken.

The optical illusion pattern sheet 2C shown in FIG. 17 is formed by applying a predetermined illusion pattern to a plate used for an internal wall surface or a floor surface in an image space in a three-dimensional image display device 1C, or a sheet material arranged or attached to the plate. Can be done.

18 (a) and 18 (b) show an image of an example of the optical illusion pattern sheet 2C. Here, the video space shown in FIGS. 18A and 18B is in the box 11c of EVAROO ZT27 (manufactured by RSK Co., Ltd.) corresponding to the three-dimensional video display device 1C.

When the side of the floor surface in the box 11c where the illusion pattern sheet 2C is located is the left half surface side when viewed from the viewing direction, the right half surface side is the unpatterned sheet 2X (the unpatterned floor of the box 11c). This makes it possible to simultaneously take a verification image showing a comparison between a checkered floor and a black floor.

FIG. 18A shows a state before the image is displayed from the monitor device 4C, but the inside of the box 11c is illuminated by the lighting fixture 3C, and the non-patterned sheet on the floor inside the box 11c of the three-dimensional image display device 1C. An elongated shadow line (shadow at the location indicated by the white arrow) appears in 2X. On the other hand, an elongated shadow line does not appear on the illusion pattern sheet 2C on the half surface of the floor surface in the box 11c of the three-dimensional image display device 1C.

Next, FIG. 18B shows a state in which the image is displayed from the monitor device 4C and the image is displayed through the half mirror 12c. Similarly, even in this image display state, an elongated shadow line (shadow at a position indicated by a white arrow) appears on the non-patterned sheet 2X on the floor surface in the box 11c of the three-dimensional image display device 1C. On the other hand, an elongated shadow line does not appear on the illusion pattern sheet 2C on the half surface of the floor surface in the box 11c of the three-dimensional image display device 1C.

As an example of a predetermined illusion pattern, the illusion pattern sheet 2C shown in FIGS. 17 and 18 has, for example, a bright pattern having a first color (white) and a dark pattern having a second color (black). The contrast ratio between the light pattern and the dark pattern is high, and the shadow line projected in the area of the mixed pattern (checkerboard pattern) (the shade line of the color whose contrast ratio is relatively low compared to the contrast ratio of the illusion pattern). ) Is visually assimilated into a mixed pattern.

In the verification image shown in FIG. 18, it can be clearly confirmed that this shadow line disappears in the floor surface portion in the checkered pattern range (illusion pattern sheet 2C). In addition, it was confirmed that the same effect can be obtained with a pattern other than the checkered pattern as long as the pattern has clear light and darkness even if it is not a checkered pattern, or if the pattern has certain conditions as described above.

It was also found that the optical illusion effect can be obtained in the same way if the design has a difference in brightness (a pattern with a high contrast ratio) even with a complicated pattern. For example, in the illusion pattern sheet 2B shown in FIGS. 6A and 6B, even if an intricate pattern such as a flower pattern (second illusion pattern 213b, fourth illusion pattern 223b) is included, it is bright and dark. An optical illusion effect can be obtained if the design has a difference (a pattern with a high contrast ratio). For other patterns, verification results were obtained as in the above-mentioned comparative verification experiment of various patterns.

[Fourth Embodiment]
Hereinafter, a fourth embodiment of the illusion pattern sheet and the three-dimensional image display device 1D according to the present invention will be described with reference to FIGS. 19 and 20. Here, FIG. 19 shows the configuration of (b) the three-dimensional image display device 1D of the fourth embodiment for comparison of the verification results shown in FIG. 20, and (a) the configuration of the three-dimensional image display device 1X compared. It is a figure which shows. FIG. 20 is an image (drawing substitute photograph) showing an example of the effect of the illusion pattern sheet 2D in the three-dimensional image display device 1D of the fourth embodiment.

As a device corresponding to the 3D image display devices 1D and 1X shown in FIG. 19, EVAROO RX20 (manufactured by RSK Co., Ltd.) was used to capture an image of the 3D image display shown in FIG. In the 3D image display device 1D, a half mirror 12d on three surfaces (the viewing port is 3 ports) is tilted and leaned from the top plate 15d to the pedestal 11d. In the 3D image display device 1D, the 3D image can be visually recognized in the image space surrounded by the three-sided half mirror 12d. The same applies to the 3D image display device 1X.

The three-dimensional image display device 1X shown in FIG. 19 (a) has the same structure as the three-dimensional image display device 1D shown in FIG. 19 (b) except for a part. A part of the difference is that the three-dimensional image display device 1D shown in FIG. 19B is provided with the pattern 111d on the floor surface and the pattern 112d on the back plate surface as the optical illusion pattern sheet 2D. On the other hand, in the three-dimensional image display device 1X shown in FIG. 19A, only the pattern 111x on the floor surface (the same pattern as the pattern 111d on the floor surface) is attached as the pattern sheet 2Xd.

The difference in the illusion effect between the 3D image display device 1X and the 3D image display device 1D is the shadow line (heaven) at the white arrow in the verification shooting of the 3D image display device 1X shown in FIG. 20 (a). A display device that displays a two-dimensional image is displayed on the board 15x. The shadow line at the location of the white arrow is caused by the monitor screen frame of the display device that displays the two-dimensional image, which is incorporated in the top plate 15x of the three-dimensional image display device 1X.

On the other hand, in the three-dimensional image display device 1D to which the pattern 112d on the back plate surface shown in FIG. 20B is attached, the shadow line is not reflected at the position of the white arrow. As a result, as shown in FIG. 20 (b), when the viewing direction of the three-dimensional image display device 1D is front view, the illusion pattern sheet 2D in the three-dimensional image display device 1D causes the back plate shown in FIG. 20 (a) to be viewed. It was found that the shadow line at the white arrow on the lower side disappeared.

It should be noted that such a shadow line differs depending on which direction the viewer visually recognizes the 3D image display device 1X. Therefore, it was also found that in a 3D image display device 1D or the like that can be visually recognized from multiple directions, the effect of erasing the shadow line differs depending on where the illusion pattern having the illusion effect is attached. did.

In addition, the verification images described so far have been an improvement method for 3D hologram display for 3D image display devices in image display devices such as monitor devices connected to smart phones, computers, etc. Also, as a method for improving the 3D image display in the stage production in the structure related to the production of the stage equipment such as virtual reality, theater, theater (for example, the structure such as the floor of the stage, the stage, the wall of the stage such as the background). , An optical illusion pattern having an optical illusion effect of the present invention can be applied.

That is, the three-dimensional image display device of the embodiment has one or more half mirrors in the structure related to the box or effect, and has an image projection area in the structure related to the box or effect, and the one or more. This is a device using a predetermined optical illusion pattern sheet that allows the viewer to visually recognize a two-dimensional image to a three-dimensional image through the half mirror of the above.

In the three-dimensional image display device of the embodiment, an optical illusion pattern sheet is used on the inner wall surface, floor surface, or ceiling surface of a box facing the image projection area or a structure related to the effect, and the box or effect using the illusion pattern sheet. The shadow of the frame of the display screen that displays the image projection target of the 3D image display device projected in the area of the pattern with the predetermined illusion pattern on the inner wall surface, floor surface or ceiling surface of the structure, or 3. The shadow of the auxiliary equipment used in the three-dimensional image display device is assimilated into the pattern in the area of the pattern according to the viewing direction on the visual illusion of the viewer.

As described above in each embodiment, according to the illusion pattern sheet of the embodiment, the method of manufacturing the illusion pattern sheet, and the three-dimensional image display device, the stereoscopic effect and floating of the image display can be achieved by a low cost and simple method. You can create a feeling.

[Other embodiments]
Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. Further, for example, the features of each embodiment may be combined. Furthermore, these embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

1A, 1B, 1C, 1D, 1X ... 3D image display device, 2A, 2B, 2C, 2D ... Illusion pattern sheet, 2X ... No pattern, 2Xd ... Pattern sheet, 3A, 3C ... Lighting equipment, 4A, 4B ... Smart Phone (display device), monitor device ... 4C, 11a, 11b, 11c, 11d, 11x ... box, 12a, 12b, 12c, 12d, 12x ... half mirror, 13a, 13b, 14a ... screen frame adapter, 15a, 15b, 15d, 15x ... Top plate, 21a, 26b ... Floor surface, 21b ... Stage, 22a, 22b ... Back plate, 23a, 23b, 24a, 24b ... Side plate, 25b ... Floor height, 41a, 41b ... Monitor screen, 111a ... Video viewing opening, 111d, 111x ... Floor pattern, 112d ... Back plate surface pattern, 112x ... Back plate surface no pattern, 112a, 112b ... Mirror locking portion, 121a ... Mirror fixed frame, 122a ... Translucent Material, 131a, 131b, 141a ... Screen frame, 132a, 132b, 142a ... Opening, 151a ... Top plate frame, 152a ... Projection opening, 153a ... Half mirror insertion opening, 154a ... Lighting opening, 211b ... First illusion Pattern, 212b ... No pattern range, 213b ... Second illusion pattern, 221a ... First illusion pattern, 221b ... Third illusion pattern, 222a, 222b ... No pattern range, 223a ... Second illusion pattern, 223b ... Fourth illusion pattern, 411b ... 2D image display frame, 421b ... Projection display

Claims (7)

An optical illusion pattern sheet in which a predetermined illusion pattern is applied to a board used for an internal wall surface, a floor surface or a ceiling surface facing the image projection area of a three-dimensional image display device, or a sheet material to be arranged or attached to the board. hand,
The predetermined optical illusion pattern is projected in the area of the pattern in which at least the first pattern having the first color and the second pattern having a second color different from the first color are mixed. The shadow of the frame of the display screen that displays the image projection target of the 3D image display device or the shadow of the auxiliary equipment used in the 3D image display device is mixed according to the visual illusion direction on the viewer's visual sense. An optical illusion pattern sheet that is characterized by being assimilated into the pattern. The predetermined illusion pattern is a first bright pattern and a first dark pattern in a first light pattern having at least a first color and a first dark pattern having a second color different from the first color. A pattern in which the first bright pattern and the first dark pattern having a high contrast ratio with the pattern are mixed, or a second bright pattern with at least a third color and a third color different from the third color. The illusion pattern sheet according to claim 1, wherein the second bright pattern and the third bright pattern are mixed by the third bright pattern colored in 4. A claim including a decoration step of applying a predetermined optical illusion pattern to a board used for an internal wall surface, a floor surface or a ceiling surface facing an image projection area of a three-dimensional image display device, or a sheet material to be arranged or attached to the board. The method for manufacturing an optical illusion pattern sheet according to claim 1 or 2.
A wall surface designation step of designating the internal wall surface, floor surface, or ceiling surface to which the predetermined illusion pattern is applied, and
The decoration range designation step of designating the range for decorating the illusion pattern on the designated internal wall surface, floor surface, or ceiling surface, and the decoration range designation step.
An optical illusion pattern designation process for designating the optical illusion pattern for each designated decorative range, and an optical illusion pattern designation step.
A color specification process that specifies a color for each specified illusion pattern, and
After the completion of each of the designated steps, or after designating a designated pattern stored in advance or changing a part of the designated pattern, the decoration is applied to the board or the sheet material with the designated illusion pattern. Process and
A method for manufacturing an optical illusion pattern sheet, which comprises. The structure related to the box or effect has one or more half mirrors, the image projection area is provided in the structure related to the box or effect, and the two-dimensional image is transmitted through the one or more half mirrors. A three-dimensional image display device using the illusion pattern sheet according to claim 1 or claim 2, wherein the dimensional image can be visually recognized by the viewer.
The optical illusion pattern sheet is used on the internal wall surface, floor surface, or ceiling surface of the box or the structure related to the effect facing the image projection area.
The three-dimensional image display device projected into the area of the pattern on which the predetermined illusion pattern is applied on the internal wall surface, floor surface, or ceiling surface of the box or the structure related to the effect in which the illusion pattern sheet is used. The shadow of the frame of the display screen that displays the image of the image to be projected or the shadow of the auxiliary equipment used in the three-dimensional image display device is made into a pattern in the area of the pattern according to the viewing direction on the visual illusion of the viewer. A 3D image display device characterized by assimilation. With the backboard,
The side plates connected to the left and right sides of the back plate,
The top plate connected to the upper end of the back plate and
A pedestal to which the back plate and the side plates on both the left and right sides are connected, and
A half mirror that is slanted from the top plate to the pedestal is provided.
Surrounded by the back plate, the side plates on both sides, the top plate and the pedestal, the box having the image projection area is formed, and the illusion is formed on the back plate, the side plates on both sides, the top plate or the pedestal. A pattern sheet is used,
The top plate is provided with a screen opening that can support the display device with the monitor screen of the display device having the monitor screen for displaying images facing the pedestal side, and can illuminate the inside of the box. Lighting equipment can be installed,
At the upper part of the box, an opening for capturing an image from the monitor screen of the display device is formed in the image space (in the image projection area).
The half mirror is arranged at an inclination angle in the range of 40 ° to 50 ° with respect to the pedestal.
The three-dimensional image display device according to claim 4, wherein a visual recognition port for visually recognizing the image is formed in the box via the half mirror. The optical illusion pattern sheet can be stored in the box, and the sheet material used for the pedestal and at least the sheet material used for the side plate or the back plate are connected and exchangeable. The three-dimensional image display device according to claim 5, wherein the inner sheet is used. The top plate may illuminate the inside of the box with a screen opening that can support the portable information terminal with the screen of the portable information terminal facing the pedestal side as the display device. The three-dimensional image display device according to claim 5 or 6, wherein a possible lighting opening is provided.

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