Representation

Abstract

The present invention provides a lenticular display that allows users to observe images without any sense of discomfort. [Solution] A display body 1 comprises a lenticular lens 11 having a shape in which a plurality of cylindrical lens portions 21, whose surfaces are extended in a first direction, are arranged in parallel in a second direction perpendicular to the first direction, and a lenticular image 12 which is arranged on the back surface of the lenticular lens 11 and is displayed by switching in accordance with a change in the observation angle observed through the lenticular lens 11, wherein the change in the observation angle is a change in a virtual plane perpendicular to the first direction, and when the observation angle from a position directly facing the lenticular image 12 (normal direction of the lenticular lens 11) is taken as the reference angle, the image corresponding to a larger observation angle among the plurality of images occupies a longer dimension on the lenticular image along the second direction.

Description

Technical Field

[0001] The present invention relates to a display body.

Background Art

[0002] As disclosed in Patent Document 1 below, a lenticular display body employing lenticular printing is widely known. Lenticular printing is a method of printing a lenticular image in which the picture observed varies depending on the viewing angle of the user.

[0003] For example, in a lenticular display body obtained by subjecting an in-flight-size acrylic stand to lenticular printing, when the user changes the viewing angle by rotating the acrylic stand horizontally, there are cases where the picture appears to move from the user's perspective.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in a conventional lenticular display body, as the viewing angle of the user moves away from the front of the lenticular display body, the picture that the user can observe appears thinner (for example, as the lenticular display body is rotated horizontally and the viewing angle is shifted from the front, the picture shrinks horizontally), causing a sense of discomfort.

[0006] In view of the above problems, an object of the present invention is to provide a display body that allows a user to observe a lenticular image without discomfort.

Means for Solving the Problems

[0007] To solve the above problems, a display body according to a first aspect of the present invention comprises a lenticular lens having a shape in which a plurality of cylindrical lens portions, whose surfaces are extended in a first direction, are arranged in parallel in a second direction perpendicular to the first direction, and a lenticular image having a plurality of images arranged on the back surface of the lenticular lens and displayed by switching according to a change in the observation angle observed through the lenticular lens, wherein the change in the observation angle is a change in a virtual plane perpendicular to the first direction, and when the observation angle from a position directly facing the lenticular image is taken as the reference angle, the image corresponding to a larger observation angle among the plurality of images occupies a longer dimension on the lenticular image along the second direction.

[0008] Furthermore, in a second aspect of the present invention, each of the images included in the plurality of images includes a main body portion that is the object to be displayed, and a frame portion that surrounds the main body portion and shows the same frame, and in the plurality of images, the rate of change of the dimensions of each frame portion of each image along the second direction is equal to the rate of change of each main body portion.

[0009] Furthermore, in the third aspect of the present invention, each main body part represents the same display object.

[0010] Furthermore, in a fourth aspect of the present invention, the display target is a character, and each image included in the plurality of images is configured as a sequence of images representing the movement of the character in chronological order.

[0011] Furthermore, in a fifth aspect of the present invention, each image included in the plurality of images refers to a standard image in which the dimensions are standard and the observation angle is the reference angle, one or more first adjustment images in which the observation angle is tilted by an integer multiple of a predetermined angle in one rotational direction from the reference angle, and one or more second adjustment images in which the observation angle is tilted by an integer multiple of a predetermined angle in a rotational direction opposite to the first rotational direction from the reference angle.

[0012] Furthermore, in a sixth aspect of the present invention, the dimensions of each image included in the plurality of images along the second direction are set based on the reciprocal of the reduction ratio that is apparently reduced according to each corresponding observation angle.

[0013] Furthermore, in the seventh aspect of the present invention, each image included in the plurality of images has a longer dimension along the second direction as it moves away from each observation position which corresponds to each observation angle.

[0014] Furthermore, in the eighth aspect of the present invention, each image included in the plurality of images has a longer dimension along the first direction as it moves away from each observation position which corresponds to each observation angle. [Effects of the Invention]

[0015] According to the present invention, users can observe lenticular images without any discomfort. [Brief explanation of the drawing]

[0016] [Figure 1] A perspective view showing an example of the overall configuration of a display body according to an embodiment of the present invention. [Figure 2] Figure 1 is an enlarged view showing an example of a single lens section and a corresponding band-shaped region. [Figure 3] Figure 1 is a top view showing an example of a lenticular image. [Figure 4] This is a schematic diagram showing the relationship between the observation location and the corresponding band-shaped region. [Figure 5A] This is a schematic diagram showing an example of a standard image when the observation angle is the reference angle. [Figure 5B] This is a schematic diagram showing an example of a first adjustment image when the observation angle is set to a predetermined angle in one rotation direction. [Figure 5C] This is a schematic diagram showing an example of a first adjusted image when the observation angle is set to twice a predetermined angle in one rotation direction. [Figure 5D] This is a schematic diagram showing an example of a first adjustment image when the observation angle is set to three times a predetermined angle in one rotation direction. [Figure 5E] It is a schematic diagram showing an example of a second adjustment image when the observation angle is a predetermined angle in another rotation direction. [Figure 5F] It is a schematic diagram showing an example of a second adjustment image when the observation angle is twice the predetermined angle in another rotation direction. [Figure 5G] It is a schematic diagram showing an example of a second adjustment image when the observation angle is three times the predetermined angle in another rotation direction. **Modes for Carrying Out the Invention**

[0017] Hereinafter, a plurality of embodiments of the present invention will be described with reference to the accompanying drawings. For ease of understanding of the description, the same reference numerals are given to the same components and steps in each drawing as much as possible, and duplicate descriptions are omitted.

[0018] ===Embodiment=== Hereinafter, an embodiment of the present invention will be described.

[0019] ≪Configuration≫ FIG. 1 is a diagram showing an example of the overall configuration of a display body 1 according to an embodiment of the present invention.

[0020] As shown in FIG. 1, the display body 1 mainly includes a lenticular lens 11 and a lenticular image 12.

[0021] The lenticular lens 11 has a shape in which a plurality of lens portions 21 having a columnar shape with a surface extending in the X direction are arranged in parallel in the Y direction orthogonal to the X direction.

[0022] The lenticular image 12 is disposed on the back surface of the lenticular lens 11. More specifically, a plate-like member 13 such as an acrylic plate is disposed on the back surface of the lenticular lens 11, and the lenticular image 12 is printed (lenticular printing) with ink on the surface of the plate-like member 13. In FIG. 1, the lenticular image 12 is shown with a thickness for easy viewing.

[0023] Furthermore, the lenticular image 12 includes multiple images that are switched and displayed according to the change in the observation angle observed through the lenticular lens 11. To elaborate on this point, first, the lenticular image 12 includes multiple integrally formed band-shaped regions 22. The band-shaped regions 22 are regions that extend in the X direction. In the lenticular image 12, the band-shaped regions 22 corresponding to each of the multiple images are arranged in parallel one by one in a predetermined order. The "predetermined order" will be explained in more detail later.

[0024] Here, the "observation angle" is the angle between the direction of the user's line of sight when observing the lenticular image 12 and the surface normal direction of the lenticular lens 11, and is defined within a virtual plane perpendicular to the X direction. In this embodiment, the reference angle (0°) is defined as the direction (position) directly facing the lenticular image 12, that is, the observation angle from the surface normal direction of the lenticular lens 11.

[0025] Figure 2 is an enlarged view showing an example of one lens portion 21 and multiple band-shaped regions 22 corresponding to the lens portion 21 shown in Figure 1.

[0026] In Figure 2, as an example, seven band-shaped regions 22 are provided below a single lens section 21. This indicates that the lenticular image 12 appears as seven different images depending on the observation angle. In Figure 2, the seven band-shaped regions 22 are designated as band-shaped regions 22A, 22B, 22C, 22D, 22E, 22F, and 22G, which are arranged in parallel in the Y direction.

[0027] Of these, the width in the Y direction of the band-shaped region 22A, which is located at the center in the Y direction below one lens portion 21, is defined as width L1 (more precisely, the band-shaped region 22A is positioned such that its center in the Y direction coincides with the center in the Y direction below the lens portion 21). Furthermore, the width in the Y direction of the strip-shaped region 22B, which is located on one end of the strip-shaped region 22A in the Y direction, and the width of the strip-shaped region 22E, which is located on the other end of the strip-shaped region 22A in the Y direction, are both defined as width L2. Also, the widths in the Y direction of the strip region 22C disposed on one end side in the Y direction of the strip region 22B and the strip region 22F disposed on the other end side in the Y direction of the strip region 22E are each set to a width L3. Also, the widths in the Y direction of the strip region 22D disposed on one end side in the Y direction of the strip region 22C and the strip region 22G disposed on the other end side in the Y direction of the strip region 22F are each set to a width L4.

[0028] At this time, the lengths of the widths L1 - L4 are such that L1 < L2 < L3 < L4. Also, it is preferable that the sum of the widths L1 - L7 is equal to or less than the width of the lens unit 21 in the Y direction. That is, among the back surfaces of each lens unit 21, the strip regions 22 at both ends in the Y direction are longer in the dimension along the Y direction.

[0029] Here, each strip region 22 corresponds to a region obtained by dividing a part of each of the plurality of images P1 - P7 along the Y direction (Y direction). That is, each of the images P1 - P7 is composed of a plurality of strip regions 22 arranged along the Y direction, and the width (L1 - L4) in the Y direction of each strip region 22 is set so as to correct the apparent reduction in the dimension along the Y direction of the image assigned to the strip region 22 when observed through the lenticular lens 11. For this reason, by setting the width in the Y direction larger for the strip region 22 corresponding to a larger viewing angle, the apparent dimensional difference in the Y direction of each of the images P1 - P7 during observation is suppressed, and a natural display can be obtained at each viewing angle.

[0030] Also, the lenticular image 12 is formed such that when the strip regions 22A - 22G are taken as one group, the group is continuous. This corresponds to the "predetermined order" already described.

[0031] Here, FIG. 3 is a top view showing an example of the lenticular image 12.

[0032] The groups R1, R2, R3, R4, R5, and R6 shown in Figure 3 are each arranged to correspond to the width in the Y direction of one lens section 21. Each group R1-R6 contains the band-shaped regions 22A-22G described in Figure 2 (however, in Figure 3, only the band-shaped region 22A is labeled for easier visibility).

[0033] Figure 4 is a schematic diagram showing the relationship between observation positions S1-S7 and the corresponding band-shaped regions 22A-22G. The dashed arrows in the figure represent the user's line of sight from each observation position. As explained above, the observation angle changes in a virtual plane perpendicular to the X direction, and the plane of Figure 4 corresponds to this virtual plane.

[0034] The observation position S1 shown in Figure 4 is the position where the observation angle is the reference angle (0°). The band-shaped region 22 corresponding to this observation angle (visible from observation position S1) is band-shaped region 22A. Furthermore, observation position S2 is a position where the observation angle is tilted by a predetermined angle θ1 in the rotational direction from the reference angle. The band-shaped region 22 corresponding to this observation angle (visible from observation position S2) is band-shaped region 22B. Furthermore, observation position S3 is a position where the observation angle is tilted by a predetermined angle θ1 × 2 in the rotational direction from the reference angle. The band-shaped region 22 corresponding to this observation angle (visible from observation position S3) is band-shaped region 22C. Furthermore, observation position S4 is a position where the observation angle is tilted by a predetermined angle θ1 × 3 in the rotational direction from the reference angle. The band-shaped region 22 corresponding to this observation angle (visible from observation position S4) is band-shaped region 22D. Furthermore, observation position S5 is a position where the observation angle is tilted by a predetermined angle θ1 in another rotational direction from the reference angle. The band-shaped region 22 corresponding to this observation angle (visible from observation position S5) is band-shaped region 22E. Furthermore, observation position S6 is a position where the observation angle is tilted by a predetermined angle θ1 × 2 from the reference angle in another rotational direction. The band-shaped region 22 corresponding to this observation angle (visible from observation position S6) is band-shaped region 22F. Furthermore, observation position S7 is a position where the observation angle is tilted by a predetermined angle θ1 × 3 from the reference angle in another rotational direction. The band-shaped region 22 corresponding to this observation angle (visible from observation position S7) is band-shaped region 22G. The predetermined angle θ1 may be, for example, 15°. Furthermore, the "other rotation direction" refers to a rotation direction opposite to one of the rotation directions.

[0035] Furthermore, assuming that the distance between the display body 1 (lenticular image 12) and each observation position S1-S7 is approximately several tens of centimeters, and that the width of the display body 1 (lenticular image 12) in the Y direction, i.e., the total width of groups R1-R7, is approximately a few centimeters to 10 centimeters, then the relationship between the observation positions S1-S7 in Figure 4 and the band-shaped regions 22A-22G visible from each observation position S1-S7 holds true simultaneously for all groups R1-R7. In other words, from the observation angle of observation position S1, the entirety of band-shaped region 22A is visible (the same can be said for the other band-shaped regions 22B-22G).

[0036] The "multiple images" mentioned above refer to image P1, which is formed by combining all the band-shaped regions 22A; image P2, which is formed by combining all the band-shaped regions 22B; image P3, which is formed by combining all the band-shaped regions 22C; image P4, which is formed by combining all the band-shaped regions 22D; image P5, which is formed by combining all the band-shaped regions 22E; image P6, which is formed by combining all the band-shaped regions 22F; and image P7, which is formed by combining all the band-shaped regions 22G.

[0037] Based on the above, the image visible from observation position S1 is image P1, the image visible from observation position S2 is image P2, the image visible from observation position S3 is image P3, the image visible from observation position S4 is image P4, the image visible from observation position S5 is image P5, the image visible from observation position S6 is image P6, and the image visible from observation position S7 is image P7.

[0038] However, to explain, for example, an image corresponding to an observation angle of 30° in one rotation direction, this means that the "median" of the angles at which this image can be observed is 30° in one rotation direction. In other words, an image corresponding to an observation angle of 30° in one rotation direction refers to an image that can be observed within a range of 30° ± a certain angle (for example, 7.5°) in one rotation direction. Note that this predetermined angle range changes according to the "median" of the observation angle because the widths of each band-shaped region 22 are different from each other.

[0039] As already explained, the band-shaped regions 22 at both ends of the back surface of each lens section 21 have a longer dimension along the Y direction. In other words, the image corresponding to a larger observation angle among the multiple images is set to occupy a longer dimension on the lenticular image 12 along the Y direction.

[0040] However, the change in observation angle refers to the relative change between the user's line of sight and the lenticular lens 11 and lenticular image 12. In other words, the observation angle may change as the user's line of sight moves, or it may change as the display unit 1 is rotated.

[0041] Here, Figures 5A-5G are schematic diagrams of multiple images (each image P1-P7).

[0042] Figure 5A is a schematic diagram showing an example of image P1 observed from observation position S1 (corresponding to the case where the observation angle is the reference angle). In the following, image P1 may be referred to as "standard image P1".

[0043] Figure 5B is a schematic diagram showing an example of image P2 observed from observation position S2 (corresponding to the case where the observation angle is θ1 × 1 in the rotational direction). In the following, image P2 may be referred to as "first adjustment image P2".

[0044] Figure 5C is a schematic diagram showing an example of image P3 observed from observation position S3 (corresponding to the case where the observation angle is θ1 × 2 in the rotational direction). In the following, image P3 may be referred to as "first adjustment image P3".

[0045] Figure 5D is a schematic diagram showing an example of image P4 observed from observation position S4 (corresponding to the case where the observation angle is θ1 × 3 in the rotational direction). In the following, image P4 may be referred to as "first adjustment image P4".

[0046] Figure 5E is a schematic diagram showing an example of image P5 observed from observation position S5 (corresponding to the case where the observation angle is θ1 × 1 in the other rotation direction). Hereafter, image P5 may be referred to as the second adjustment image P5.

[0047] Figure 5F is a schematic diagram showing an example of image P6 observed from observation position S6 (corresponding to the case where the observation angle is θ1 × 2 in the other rotation direction). In the following, image P6 may be referred to as "second adjustment image P6".

[0048] Figure 5G is a schematic diagram showing an example of image P7 observed from observation position S7 (corresponding to the case where the observation angle is θ1 × 3 in the other rotation direction). In the following, image P7 may be referred to as "second adjustment image P7".

[0049] In other words, the first adjustment images P2-P4 are one or more images corresponding to observation angles tilted by an integer multiple of a predetermined angle θ1 in one rotational direction from the above reference angle. Furthermore, the second adjustment images P5-P7 are one or more images corresponding to observation angles tilted by an integer multiple of a predetermined angle θ1 in the rotational direction opposite to the above reference angle from the above reference angle. Note that "integer multiples" here refer to 1x, 2x, and 3x as shown in Figure 4, but they are not limited to these.

[0050] As shown in Figure 5B, the first adjustment image P2 is longer in the Y direction (horizontal direction of the paper) compared to the standard image P1. Also, as shown in Figure 5C, the first adjustment image P3 is longer in the Y direction (horizontal direction of the paper) compared to the first adjustment image P2. Furthermore, as shown in Figure 5D, the first adjustment image P4 is longer in the Y direction (horizontal direction of the paper) compared to the first adjustment image P3. As shown in Figure 5E, the second adjusted image P5 is longer in the Y direction (horizontal direction of the paper) compared to the standard image P1. Also, as shown in Figure 5F, the second adjusted image P6 is longer in the Y direction (horizontal direction of the paper) compared to the second adjusted image P5. Furthermore, as shown in Figure 5G, the second adjusted image P6 is longer in the Y direction (horizontal direction of the paper) compared to the second adjusted image P5.

[0051] However, for example, Figure 5B shows a corrected version where the dimensions are stretched in the Y direction for ease of understanding. When a user actually observes Figure 5B, this correction makes it appear as if the dimensions are the same as the standard image P1 in Figure 5A. The same applies to images P3-P7 shown in Figures 5C-5G.

[0052] Furthermore, as shown in Figures 5A-5G, each image P1-P7 includes a main body portion T1-T7 which is the same display object, and a frame portion F1-F7 which surrounds the main body portion T1-T7 and represents the same frame.

[0053] Then, the rate of change in the dimensions of each frame portion F1-F7 in each image P1-P7 along the Y direction (extension in the Y-axis direction) is made equal to the rate of change of each main body portion T1-T7 (extension in the Y-axis direction).

[0054] As an example, the display target for each main body section T1-T7 is a character. Each image P1-P7 is composed of a sequence of images representing the character's movement in chronological order. This "character movement" refers to, for example, the movement of the mouth, limbs, or torso (in Figures 5A-5G, it is the movement of the character's mouth).

[0055] Furthermore, the standard image P1 shown in Figure 5A is assumed to have standard dimensions. In the first adjustment images P2-P4, the dimensions in the Y direction increase as the corresponding observation angle increases (in one rotation direction). In the second adjustment images P5-P7, the dimensions in the Y direction increase as the corresponding observation angle increases (in the other rotation direction).

[0056] Furthermore, as can be seen by comparing Figures 5B-5D and 5E-5G, in this embodiment, the main body parts T1-T7 are set to exhibit the same change (movement) when the observation angle changes in one rotational direction from the reference angle (standard image P1 in Figure 5A) and when the observation angle changes in another rotational direction. In other words, the "series of images represented in time" mentioned above refers to the fact that the images change in the time series from standard image P1 to images P1, P2, P3, and P4, and also that the images change in the time series from standard image P1 to images P1, P5, P6, and P7.

[0057] Furthermore, in this embodiment, preferably, the dimensions along the Y direction of each image P1-P7 are set based on the reciprocal of the apparent reduction ratio according to each corresponding observation angle. That is, the width (L1-L4) in the Y direction of each band-shaped region 22 is set based on the reciprocal of the apparent reduction ratio when the dimensions along the Y direction of the image assigned to the band-shaped region 22 are observed through the lenticular lens 11. The "reduction ratio" here refers to the amount of reduction measured in advance for each observation angle. Furthermore, "setting based on" here refers to setting the Y-direction width of each image P2-P7 (or the Y-direction width L2-L4 of each band-shaped region 22B-G corresponding to each image P2-P7) to the value obtained by multiplying the standard Y-direction width of the standard image P1 (or the Y-direction width L1 of the band-shaped region 22A corresponding to the standard image P1) by the reciprocal of the above values.

[0058] ≪Applications and Operation≫ Display unit 1 can be applied to character goods such as trading cards and desktop acrylic stands, as well as POP (advertising) displays. If applied to POP displays, the character represented by the main body parts T1-T7 may appear to be speaking to visitors at events or merchandise sales. Alternatively, display unit 1 may be applied to character teaching materials that operate using simple electronic elements in the fields of education or toys.

[0059] Furthermore, for example, when the display unit 1 is applied to a desktop acrylic stand, the X direction (the extension direction of the lens portion 21) is vertical, and it is preferable to rotate the display unit 1 horizontally (so that the virtual plane on which the observation angle changes becomes the horizontal plane). However, the display unit 1 may also be rotated in a direction other than horizontal.

[0060] <Effects> The display body 1 according to an embodiment of the present invention comprises a lenticular lens 11 having a shape in which a plurality of cylindrical lens portions 21, whose surfaces are extended in a first direction (X direction), are arranged in parallel in a second direction (Y direction) perpendicular to the first direction, and a lenticular image 12 which is arranged on the back surface of the lenticular lens 11 and is displayed by switching in accordance with a change in the observation angle observed through the lenticular lens 11, wherein the change in the observation angle is a change in a virtual plane perpendicular to the first direction, and when the observation angle from a position directly facing the lenticular image 12 (normal direction of the lenticular lens 11) is taken as the reference angle, the image corresponding to a larger observation angle among the plurality of images occupies a longer dimension on the lenticular image 12 along the second direction.

[0061] This configuration produces the following effects: • Lateral compression, which depends on the viewing angle, can be pre-corrected. This allows users to observe lenticular images without discomfort. • By pre-stretching images that correspond to wider observation angles, the apparent shrinkage during actual observation can be compensated for, resulting in a natural display (a display with a natural width, as if always viewed from the front) across a wide range of observation angles. • Because correction can be performed solely through image processing without changing the lens structure, material and mechanical costs can be reduced. • Because the second-direction dimension can be set in stages for each observation angle, it is easier to suppress the unnatural feeling of image switching when changing the angle.

[0062] Furthermore, in the display body 1 according to the embodiment of the present invention, each of the images P1-P7 included in the plurality of images includes a main body portion T1-T7 which is the object to be displayed, and a frame portion F1-F7 which surrounds the main body portion T1-T7 and each represents the same frame. Furthermore, in the plurality of images P1-P7, the rate of change in the dimensions of each frame portion F1-F7 in each image along the second direction is set to be equal to the rate of change of each main body portion T1-T7.

[0063] This configuration produces the following effects: - Frame sections F1-F7, each representing the same frame, are provided around the main body sections T1-T7. By matching the rate of change in the second-direction dimensions of these frame sections F1-F7 and the main body sections T1-T7, even when the image expands or contracts in response to changes in the observation angle, the frame sections F1-F7 and the main body sections T1-T7 are perceived as changing as a single unit. As a result, the shape changes of the main body parts T1-T7 are perceived more naturally by the user, further reducing any sense of incongruity when changing the viewing angle.

[0064] Furthermore, in the display body 1 according to the embodiment of the present invention, each main body portion T1-T7 included in the plurality of images P1-P7 is configured to represent the same display object.

[0065] This configuration produces the following effects: • Each main unit section T1-T7 represents the same display object, so even when the observation angle is changed, the viewer perceives the same object moving without switching to a different object. Therefore, the continuity of the displayed content is enhanced, and the animation display accompanying changes in the viewing angle can be made less jarring. Furthermore, since the configuration only requires inverse correction of the second-direction dimensions for each observation angle for the same display object, it is easier to standardize dimensional design and prototyping adjustments for each observation angle, contributing to increased efficiency in design and manufacturing.

[0066] Furthermore, in the display body 1 according to the embodiment of the present invention, the display object is a character, and each of the images P1-P7 included in the plurality of images is configured as a sequence of images representing the movement of the character in chronological order, with each of the images P1-P7 corresponding to a single frame of the image sequence that corresponds to a different time.

[0067] This configuration produces the following effects: By using a character as the display target and composing each image P1-P7 as a sequence of images representing its movement over time, it becomes possible to display high-quality animation that makes the character appear to move continuously in response to changes in the viewing angle. People and characters are display objects that users are particularly sensitive to when it comes to unnatural shape changes. However, in this embodiment, by correcting the second-direction dimensions, unnatural deformations such as characters becoming thinner or fatter are less likely to occur when the viewing angle is changed. This makes it easier to focus on the character's original movements and perceive them as natural movements. Therefore, when applied to character goods such as trading cards and acrylic stands, as well as POP (advertising), it is possible to create high-quality animations with minimal visual inconsistencies using an inexpensive setup, and it is expected to enhance visibility, collectibility, and purchasing intent.

[0068] Furthermore, in the display body 1 according to the embodiment of the present invention, each of the images P1-P7 included in the plurality of images refers to: a standard image P1 corresponding to the case when the observation angle is a reference angle (such as 0°) and the above dimensions are standard; one or more first adjustment images P2-P4 corresponding to an observation angle tilted by an integer multiple of a predetermined angle θ1 in one rotational direction from the above reference angle; and one or more second adjustment images P5-P7 corresponding to an observation angle tilted by an integer multiple of a predetermined angle θ1 in a rotational direction opposite to the above first rotational direction from the above reference angle.

[0069] This configuration produces the following effects: • Because the first adjustment images P2-P4 and the second adjustment images P5-P7 are symmetrical changes with respect to the front view (standard image) as the reference angle, it is possible to suppress any sense of incongruity in the reproduction of image movement and three-dimensionality. • Because symmetrical angle and dimension relationships can be set based on a standard image, the design and verification of correction amounts during image generation can be performed in the same way for both the left and right sides, contributing to the simplification of data creation work.

[0070] Furthermore, in the display body 1 according to the embodiment of the present invention, the dimensions of each image P1-P7 included in the plurality of images along the second direction are set based on the reciprocal of the reduction ratio that is apparently reduced according to each corresponding observation angle.

[0071] This configuration produces the following effects: • Easier to achieve a more natural and high-quality display. Because the frame sections F1-F7 appear constant, the main body sections T1-T7 appear to be moving more dramatically.

[0072] ===Unique Text=== It should be noted that the present invention is not limited to the above-described examples. That is, designs modified by those skilled in the art to the above-described examples are also included within the scope of the present invention, as long as they retain the features of the present invention. Furthermore, the elements of the embodiments described above and the modifications described later can be combined to the extent that it is technically possible, and combinations thereof are also included within the scope of the present invention, as long as they retain the features of the present invention.

[0073] For example, in the above embodiment, the frame portions F1-F7 are rectangular in shape, but they may be circular or other shapes.

[0074] Furthermore, in the above embodiment, as shown in Figures 1 and 3, the display unit 1 was described as comprising six lens units 21 and six groups R1-R6 including band-shaped regions 22A-22G corresponding to each lens unit 21. However, the number of lens units 21 and regions can be any number, as long as there is one or more and within a predetermined number. However, the "predetermined number" here refers to the maximum number of band-shaped regions (e.g., band-shaped region 22A, etc.) that form the same image (e.g., standard image P1, etc.) that can be viewed at the same observation angle within each region.

[0075] Furthermore, in the above embodiment, as shown in Figures 2 and 4, the display body 1 shows seven strip-shaped regions 22A-22G, but the number of strip-shaped regions 22 can be any number as long as there are three or more (that is, the number of images that can be seen depending on the change in observation angle can be any number as long as there are three or more types). However, it is preferable that, with respect to the reference angle (0°), an equal number of corresponding strip-shaped regions 22 are formed in each of the two rotation directions (corresponding to observation angles that are symmetrical with respect to the reference angle).

[0076] Furthermore, in the above embodiment, an example was given where the predetermined angle θ1 is 15° and the integer multiples are 1, 2, and 3 times, among the elements that determine the observation angle. Needless to say, the predetermined angle θ1 and the integer multiples may be other values. These setting ranges are determined by the shape of each lens portion 21, such as the radius of curvature and width in the Y direction, and the width of the band-shaped region 22 in the Y direction.

[0077] Furthermore, in the above embodiment, as an example of a "series of images represented in time," it was explained that the images move (change) in the time series of images P1, P2, P3, and P4, starting from the standard image P1, and that the images move (change) in the time series of images P1, P5, P6, and P7, starting from the standard image P1. However, the term "sequence of images represented in time series" is not limited to this. For example, it could be a sequence of images P7, P6, P5, P1, P2, P3, P4 where the images change over time, or the reverse sequence.

[0078] Furthermore, although not mentioned in the above embodiments, an image observed from an observation angle tilted from the reference angle will appear to shrink in a certain direction because it is not being viewed from the front. To give a specific example, when observing the first adjustment image P4 (or the band-shaped region 22D that makes it up) from observation position S4 in Figure 4, as shown in Figure 5D, it will appear smaller as you move to the right side of the page because you are moving away from observation position S4. To correct this, each image P2-P7 may be configured such that the dimensions along the Y direction increase as it moves away from each observation position S2-S7, which corresponds to each observation angle (such as an integer multiple of a predetermined angle θ in one or the opposite direction). That is, in the (single) band-shaped region 22D in Figure 4, the dimensions increase as it moves to the left side of the page (as it moves away from observation position S4), and when comparing the (multiple) band-shaped regions 22D included in each group R1-R6 in Figure 3, the dimensions of the band-shaped region 22D on the left side of the page are increased so that it can be observed smoothly as the first adjusted image P4. Furthermore, the dimensions in the Y direction may be set based on the reciprocal of the apparent reduction ratio. Here, the "reduction ratio" is assumed to be a predetermined measurement of "how much it shrinks" for each case.

[0079] Furthermore, regarding the "appearing smaller" phenomenon mentioned above, as can be seen in Figure 5D, for example, this phenomenon occurs not only in the Y direction but also in the X direction. Therefore, it may be advisable to perform the same dimensional adjustments in the X direction as described above for the Y direction. By adjusting these dimensions in the X and Y directions, a more natural image display can be achieved.

[0080] Furthermore, in addition to considering the observation angle in the virtual plane described in the embodiment, the dimensions of each image P1-P7 (or each band-shaped region 22) in the X and Y directions may be adjusted to consider perspective distortion that depends on each observation position in three-dimensional space and the shape of the lenticular lens 11 (such as the radius of curvature). This makes it possible to achieve a more natural image display. [Explanation of symbols]

[0081] 1:Display body 11: Lenticular lenses 12: Lenticular images 13: Plate-like material (e.g., acrylic sheet) 21: Lens part 22,22A,22B,22C,22D,22E,22F,22G: Band-shaped regions L1, L2, L3, L4: Width of the (strip-shaped area) R1, R2, R3, R4, R5, R6: Areas corresponding to each lens section S1, S2, S3, S4, S5, S6, S7: Observation direction X:X direction (first direction) Y:Y direction (second direction) θ1: Predetermined angle P1: Standard image P2, P3, P4: First adjusted image P5, P6, P7: Second adjusted image T1,T2,T3,T4,T5,T6,T7: Main body part F1,F2,F3,F4,F5,F6,F7:Frame part

Claims

1. A lenticular lens having a shape in which multiple cylindrical lens portions, whose surfaces are extended in a first direction, are arranged in parallel in a second direction perpendicular to the first direction, A lenticular image comprising a plurality of images arranged on the back surface of the lenticular lens and displayed in a manner that changes in accordance with the change in the observation angle observed through the lenticular lens, A display body equipped with, The change in the observation angle is a change in a virtual plane perpendicular to the first direction, and when the observation angle from a position directly facing the lenticular image is taken as the reference angle, the image corresponding to a larger observation angle among the multiple images occupies a longer dimension on the lenticular image along the second direction. Display body.

2. Each of the aforementioned multiple images includes a main body portion that is the object to be displayed, and a frame portion that surrounds the main body portion and represents the same frame to each other. In the aforementioned plurality of images, the rate of change of the dimensions of each frame portion of each image along the second direction is equal to the rate of change of each main body portion. The display body according to claim 1.

3. Each main body part represents the same object to be displayed. The display body according to claim 2.

4. The aforementioned display target is a character, Each of the images included in the aforementioned plurality of images is composed of a sequence of images that represents the movement of the character in chronological order. The display body according to claim 3.

5. Each of the images included in the aforementioned plurality of images is A standard image with standard dimensions corresponding to the case where the observation angle is the reference angle, One or more first adjustment images corresponding to the observation angle, which is tilted by an integer multiple of a predetermined angle in one rotational direction from the aforementioned reference angle, One or more second adjustment images corresponding to the observation angle, which are tilted from the reference angle by an integer multiple of the predetermined angle in a rotation direction opposite to the first rotation direction, It refers to, A display body according to any one of claims 1 to 4.

6. The dimensions of each image included in the plurality of images along the second direction are set based on the reciprocal of the apparent reduction ratio according to each corresponding observation angle. A display body according to any one of claims 1 to 4.

7. Each of the images included in the aforementioned plurality of images has a longer dimension along the second direction as it moves away from each observation position which corresponds to each observation angle. The display body according to claim 1.

8. Each of the images included in the aforementioned plurality of images has a longer dimension along the first direction as it moves away from each observation position which corresponds to each observation angle. The display body according to claim 7.

Images