JP2003216134A - Wall image display device of spherical structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall image display device of spherical structures capable of displaying the entire circumference of a heavenly body as a series of images without generating a blind corner by audiences and devices and displaying realistic spatial images in a planetarium, a movie, a game and a simulator, etc. <P>SOLUTION: Pentagonal self-luminous image display modules 20 and hexagonal self-luminous image display modules 20 are arranged on a wall surface of the spherical structure 10 without a space, spherical surface image data are taken out from a spherical surface image memory 40, the image data are written in a corresponding position of a module image memory 30 selected corresponding to spherical surface coordinates of the image data by a mapping device 50 and partial images stored in each module image memory 30 are displayed on each image display modules 20. An organic EL place image display panel with the prescribed shaped or a panel on which LEDs are arranged in the prescribed shape are used as the image display modules 20. A spherical surface image signal formed by two-dimensionally scanning brightness of the spherical structure on the wall surface by using a horizontal direction or a vertical direction from the center of the spherical structure as scanning axes is inputted in the spherical image memory 40. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spherical structure wall surface image display device for displaying an image on the wall surface of a spherical structure, and particularly an image display device suitable for displaying an image of the sky in a planetarium or the like. Regarding

[0002]

2. Description of the Related Art Conventionally, in order to display an image of a star in the sky on a planetarium or the like, a projection original plate is manufactured in advance based on data such as the position, magnitude and shape of the star, and the projector is provided at the center of the dome. I set it on the wall and projected it on the wall. Usually, in order to increase the display density, the sky is divided into multiple areas, and the projection masters prepared for each area are projected simultaneously to display stars, nebulae, etc. on the entire inner wall of the dome. The projector is capable of rotating, revolving, precessing, etc., and can represent star movement due to the rotation of the earth and celestial phenomena such as solar eclipse and lunar eclipse. Further, recently, a video image is displayed on a part of the wall surface of the dome by a video projector or the like so that various attractions can be performed.

[0003]

However, in such a conventional planetarium, since the stars, nebulae, etc. are displayed on the wall surface of the dome by projection, it is necessary to install the projection device at the center of the dome. There are restrictions on the placement of spectators. In addition, since blind spots are generated by the audience and the projection device itself, it is theoretically impossible to display the whole sky.
In addition, floor equipment (tilts,
Even when a vibration, a rotation, etc.) is installed, there is a problem that these devices hinder the projection, and the arrangement or the effect is greatly limited.

Further, since a projection original plate is created and projected in advance, basically only a fixed image can be displayed, and it is necessary to replace the projection original plate created for each season. Although the movement of the projector itself can reproduce the movement of stars as seen from the earth and some astronomical phenomena, it faithfully reproduces the appearance of stars and astronomical phenomena from any position in the universe at any time. There was a problem that it was difficult to reproduce.

On the other hand, as a method of displaying an image on the wall surface of the dome, there has been a method of simultaneously projecting a plurality of plane images on the wall surface of the dome by a plurality of video projectors or the like to form a spherical image. This is because the two-dimensional images are simply arranged on the spherical surface, and image distortion occurs at the connecting portion. Although a method of projecting a planar image on the wall surface of the dome using a fisheye lens has been attempted, it is difficult to provide a high-resolution image without distortion in every corner. Moreover, since all of them project an image by a projector, the blind spot problem occurs as described above, and the whole sky display cannot be performed. Therefore, it cannot be said that it is sufficient for displaying a real space image in a planetarium, a movie, a game, a simulator, and the like to give a feeling of actually being in a three-dimensional space.

Therefore, the main object of the present invention is to be able to display the entire sky as a series of images without causing any blind spots by the audience or the device, and in a planetarium, movie, game, simulator, etc. It is an object of the present invention to provide a spherical structure wall surface image display device capable of displaying a realistic space image as if in a space.

[0007]

A spherical structure wall surface image display device according to claim 1, wherein a plurality of self-luminous image display modules are arranged on the wall surface of the spherical structure to display an image. A display device, a spherical image memory for storing spherical image data expressed in spherical coordinates, a plurality of module image memories for individually storing partial images to be displayed on each self-luminous image display module, and a spherical image memory Mapping means for taking out the spherical image data thus created and writing it in the corresponding position of the corresponding module image memory. The self-luminous image display module is arranged on the wall surface of the spherical structure, the spherical image data is taken out from the spherical image memory, and the image data is displayed by the mapping means at the corresponding position of the module image memory selected corresponding to the spherical coordinates. Since the writing and the partial images stored in each module image memory are displayed on each self-emission image display module, it is possible to display the entire sky as a series of images without causing a blind spot by the audience or the device,
Real space images can be provided in planetariums, movies, games, simulators, etc.

The spherical structure wall surface image display device according to claim 2 is a spherical structure wall surface image display device in which a plurality of self-luminous image display modules are arranged on the wall surface of the spherical structure to display an image. A spherical image signal input means for inputting a spherical image signal expressed in spherical coordinates, a plurality of module image memories for individually storing images to be displayed on each self-luminous image display module, and a spherical surface input by the spherical image signal input means. Mapping means for writing from the image signal to the corresponding position of the corresponding module image memory. The self-luminous image display modules are arranged on the wall surface of the spherical structure, the spherical image data is extracted from the input spherical image signal, and the mapping means applies the corresponding positions to the module image memory selected corresponding to the spherical coordinates. Image data is written and the partial images stored in each module image memory are displayed on each self-emission image display module, so the entire circumference can be displayed as a series of images without causing blind spots by the audience or the device, and the planetarium. Real movies can be provided in movies, games, simulators, etc.

The spherical structure wall surface image display device according to a third aspect is the spherical structure wall surface image display device according to the second aspect, wherein the spherical image signal indicates the brightness on the wall surface of the spherical structure as a spherical structure. Two-dimensional scanning is performed with the horizontal or vertical direction from the center of the object as the scanning axis. Treating the brightness on the wall surface of a spherical structure as a two-dimensional image equivalent to a planar image by using a spherical image signal that is two-dimensionally scanned with the horizontal or vertical direction from the center of the spherical structure as the scanning axis. You can Therefore, the image signal taken by the fish-eye lens attached to the plane scanning type video camera becomes an image signal obtained by approximately spherical scanning, and can be reproduced by this system.

The spherical structure wall surface image display device according to claim 4 is the spherical structure wall surface image display device according to any one of claims 1 to 3, wherein the self-luminous image display module has an outer shape. It has a control means for generating a two-dimensional scanning signal corresponding to. By providing the control means of the self-luminous image display module with a function of generating a two-dimensional scanning signal corresponding to the outer shape, it is possible to efficiently and two-dimensionally scan and display an image on an image display module other than a quadrangle. .

The spherical structure wall surface image display device according to claim 5 is the spherical structure wall surface image display device according to any one of claims 1 to 4, wherein the self-luminous image display module is triangular. The planar image display module having a shape is arranged on the wall surface of the spherical structure. With the triangular planar image display module, the wall surfaces of the spherical structure can be arranged without gaps, and a real space image can be provided as a series of images of the entire circumference. Further, by arranging the flat image display module unitized into a uniform shape on the wall surface of the spherical structure, the manufacturing cost can be reduced, and maintenance can be easily performed when a unit failure occurs.

The spherical structure wall surface image display device according to claim 6 is the spherical structure wall surface image display device according to any one of claims 1 to 5, wherein the self-luminous image display module comprises 5 screens. The flat-shaped image display module and the hexagonal-shaped flat image display module are combined and arranged on the wall surface of the spherical structure. By combining the five-screen planar image display module and the hexagonal planar image display module, the wall surfaces of spherical structures can be arranged without gaps, providing a realistic spatial image of the entire sky as a series of images. it can. Further, by arranging the flat image display module unitized into a uniform shape on the wall surface of the spherical structure, the manufacturing cost can be reduced, and maintenance can be easily performed when a unit failure occurs.

The spherical structure wall surface image display device according to claim 7 is the spherical structure wall surface image display device according to any one of claims 1 to 6, wherein the self-luminous image display module is an organic EL. It uses a panel. By arranging the organic EL panels formed in a predetermined shape on the wall surface of the spherical structure, a high-resolution spherical image can be self-luminous displayed. Organic EL is capable of displaying high-brightness images with low power consumption,
Since the viewing angle is wide and the reaction speed of the screen is fast, it is possible to display fast-changing images in an easy-to-see manner and realize advanced presentations.

The spherical structure wall surface image display device according to claim 8 is the spherical structure wall surface image display device according to any one of claims 1 to 7, wherein the self-luminous image display module is an issuing element. It uses a panel in which is arranged in a predetermined shape. By arranging the panel in which the light emitting elements are arranged in a predetermined shape on the wall surface of the spherical structure, a high-resolution spherical image can be self-luminous displayed. As the light emitting element, a surface emitting element such as a CRT, a plasma display, an EL or the like can be used in addition to the light emitting diode.

The spherical structure wall surface image display device according to claim 9 is the spherical structure wall surface image display device according to any one of claims 1 to 8, wherein the self-luminous image display module has a brightness. It has a brightness correction means for correcting variations. The brightness correction means corrects the brightness variations among the self-luminous image display modules, and enables more faithful spherical image display. Further, by making it possible to adjust the brightness for each pixel of each self-emission image display module, it is possible to correct an unnatural brightness change at the connection point of each self-emission image display module, and it becomes possible to display a more natural spherical image.

The spherical structure wall surface image display device according to claim 10 is the spherical structure wall surface image display device according to any one of claims 1 to 9, wherein a plurality of wall surfaces of the spherical building are provided. It is divided into areas and processed in parallel. By performing the parallel processing, the scanning update time of the spherical image can be shortened, so that the image can be displayed at a higher speed.

The spherical structure wall surface image display device according to claim 11 is the spherical structure wall surface image display device according to any one of claims 1 to 10, wherein three-dimensional image data is converted into the spherical image. It further comprises a data conversion means for converting into data. By including the data conversion means, the spherical image viewed from the viewpoint can be displayed by inputting the three-dimensional image data and the viewpoint from which the data is viewed. Thus, for example, by inputting three-dimensional data of a star or the like, a spherical image of the star or the like viewed from an arbitrary position in the universe can be automatically displayed.

A spherical structure wall surface image display device according to a twelfth aspect is the spherical structure wall surface image display device according to the eleventh aspect, which is a three-dimensional image for generating three-dimensional image data at a designated time. It further comprises a generation means. Three
By further including the three-dimensional image data generating means, it is possible to display a spherical image of an image including an object that moves three-dimensionally, as viewed from a designated viewpoint at a designated time.
As a result, 3
A dimensional model can be used to automatically display a spherical image of a star or the like seen from any position in the universe at any time.

The above-mentioned objects, other objects, features and advantages of the present invention will be more apparent from the following detailed description of the embodiments of the invention with reference to the drawings.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the system configuration of a spherical structure wall surface image display device according to an embodiment of the present invention.
In the figure, reference numeral 10 denotes a spherical structure for displaying a spherical image on the inner wall, which has a diameter of several tens of meters in a planetarium or a movie.
It is assumed that the room has a hemispherical or 3/4 spherical dome, and a game or a simulator has a global wall surface with a diameter of about 2 to 3 m for a small number of people.

Reference numeral 20 is a self-luminous image display module arranged on the inner wall of the spherical structure 10. Here, a spherical structure is formed by combining a pentagonal flat image display panel and a hexagonal flat image display panel. They are arranged on the inner wall of 10 without any gap. By arranging 12 regular pentagonal panels and 20 regular hexagonal panels as shown in the figure, they can be arranged in a spherical surface without any gap. This is an array structure of fullerene C60 and is known to be used for a soccer ball. In order to bring the display screen closer to a spherical surface, a regular pentagonal panel and a regular hexagonal panel with a smaller area are used.
These may be arranged in a ratio of 3 to 5, and the remaining portion may be filled with a panel having a specific shape or may be a non-display portion.

In the self-luminous image display module 20, a single triangular flat image display panel or a pentagonal flat image display panel may be arranged on the wall surface of the spherical structure. FIG. 2 shows an example in which triangular planar image display panels are arranged on the inner surface of a spherical structure. By arranging 20 regular triangular panels as shown in the figure, they can be arranged in a spherical surface without any gap. Further, FIG. 3 shows an example in which pentagonal flat image display panels are arranged on the inner surface of a spherical structure. Regular pentagonal panel 1
By arranging the two pieces as shown in the figure, they can be arranged in a spherical surface without a gap.

Also, with a regular icosahedron consisting of 20 regular triangles as a base, each side of the triangular face is equally divided into two along the geodesic line to recursively generate four small triangles. By going around, a polyhedron that is closer to a spherical surface may be formed. Two kinds of isosceles triangles are generated from the original triangle, but this is a case of pure geometry, and it is possible to round the error with the unit of the same shape for industrial products. Is.

In addition to this, it is also possible to realize a pseudo spherical surface with hexagonal sides. The advantage of using this hexagonal face side is that the hexagonal face side has 6 adjacency and is superior in terms of the number of adjacencies, rather than 3 adjacency of the trigonal face side and 4 adjacency of the tetragonal face side. The symmetry of the adjacent side is superior to the side of the quadrangular side, and the spherical image composed of the side of the hexagon can be easily represented as a quadrangular arrangement. However, this is a feature of one pixel on one side and is not limited to this when viewed as a unit including a plurality of pixels on one side. Needless to say, each of the hexagonal face sides may be divided into triangular facets to realize a pseudo spherical surface with the triangular face sides as a whole.

As described above, by using the image display panel having a fixed shape as a module, the cost can be reduced, and even when a part of the image display panel is broken down, the image display panel can be easily repaired.

An organic EL color image display panel can be used for the self-luminous image display module 20. An organic EL panel emits color light by applying an electric field to an organic fluorescent compound, and does not require a backlight,
High brightness images can be displayed with low power consumption. Further, since there is no limitation on the viewing angle and the response speed is high, it is possible to display a high speed image. Furthermore, since it can be manufactured to be thin and lightweight, it has excellent assemblability and maintainability. It goes without saying that a liquid crystal image display panel may be used.

The self-luminous image display module 20 is not limited to the organic EL panel, but may be one in which light emitting elements are arranged in a predetermined shape. As the light emitting element, a surface emitting CRT, a plasma display, and an EL element can be used in addition to the three-color light emitting diode. Thereby, a self-luminous image display panel having an arbitrary shape can be easily manufactured.

Reference numeral 30 is a module image memory for storing partial images to be displayed on each image display module 20,
Each image display module 20 sequentially reads the image data stored in the corresponding module image memory 30 and displays it at the corresponding position.

4 to 6 are control circuit diagrams of the triangular flat image display panel, the pentagonal flat image display panel, and the hexagonal flat image display panel, respectively. As shown in the figure, the scanning lines are set in one direction of the polygonal flat image display panel 20 (horizontal direction in the figure), the row electrodes are arranged at regular intervals in the scanning line direction, and at regular intervals in the vertical direction. Column electrodes are provided, and the scanning line drive circuit 22 and the signal drive circuit 24 are provided, respectively.
The scanning line drive circuit 22 and the signal drive circuit 24 are connected to the control circuit 26. The intersection of the row electrode and the column electrode on the flat image display panel becomes a pixel to be displayed.

The control circuit 26 uses the module image memory 3
The image data recorded in 0 is read out, and the row (Y coordinate) is selected by the scanning line drive circuit 22 corresponding to the coordinates,
The signal drive circuit 24 supplies the luminance signal of the pixel to the corresponding column (X coordinate). Do this in the column direction, 1
When the scanning of the row is completed, the next row is scanned, and when the scanning of all the rows is completed, the procedure returns to the first row and repeats. As a result, the latest polygonal plane image stored in the module image memory 30 is displayed on the plane image display panel 20.

The control circuit 26 may be provided with a function of generating a two-dimensional scanning signal corresponding to the outer shape of the flat image display module 20. For example, the control circuit 26 is provided with a table for setting a start column number and an end column number for each scanning line, and an image is taken out from the module image memory 30 based on the table, and the scanning line driving circuit 22 and the signal driving circuit 2 are fetched.
4 signals for specifying the rows and columns, respectively.
As a result, the scanning time can be shortened to the outer shape of the flat image display module 20, and the utilization efficiency of the module image memory 30 can be improved. Further, the outer shape of the flat image display module 20 may be set as a function, and the scanning range may be designated based on this, and the same effect is obtained.

Reference numeral 40 is a spherical image memory for inputting and storing spherical image data to be displayed on the inner wall of the spherical structure 10. FIG. 7 shows an example of a method of expressing a spherical image. As shown in the figure, each pixel on the spherical surface is designated by the horizontal azimuth α and the vertical azimuth β from the center 12 of the sphere. This is, for example, a scan line 16 that is scanned at a constant angle from 0 ° to 180 ° with respect to a specific azimuth 14 with respect to the horizontal azimuth α, and this is referred to as a azimuth 18 of true north with respect to the vertical angle β.
All pixels on the spherical surface can be scanned by scanning from 0 ° to + 180 ° at regular intervals. In the case of hemispherical display, the scanning range of the vertical angle β may be set to -90 ° to + 90 °, and in the case of 3/4 spherical display, the scanning range of the vertical angle β may be set to -135 ° to + 135 °.

A signal obtained by scanning the spherical surface in this manner is used as a spherical image signal and is input to the spherical image memory 40, whereby the spherical image can be displayed. If such a spherical image signal is used, it can be handled in the same manner as a normal planar image video signal, and an existing video device such as a VTR can be used as it is. In addition, by attaching a fisheye lens to a video camera of a plane image and taking an image, an image signal approximately represented by spherical coordinates can be recorded, and by inputting this signal to the display device of the present invention, the space can be easily obtained. Video can be reproduced. The distortion of the scanning line due to the use of the fisheye lens can be removed by correcting it using the coordinate conversion table when recording it in the spherical image memory.

The horizontal azimuth and the vertical azimuth do not necessarily correspond to the physical horizontal and vertical azimuths, and may be freely set. Also, the reference azimuth can be arbitrarily determined according to the purpose. The scanning line of the spherical image signal is not necessarily limited to the scanning line in the horizontal azimuth, and the scanning line in the vertical azimuth may be used as the scanning line, and the scanning line in the horizontal azimuth may be used as the spherical image signal. Needless to say.

Reference numeral 50 is a mapping device for taking out the image data stored in the spherical image memory 40 and writing it in the corresponding position of the corresponding module image memory. The mapping device 50 determines which image display module the data is to be displayed from the spherical coordinates of each pixel, converts it to the coordinates of the image display module, and modifies the module image memory 30.
Write in.

Such a function can be realized, for example, by providing a coordinate conversion table defining spherical coordinates, the module number of the image display module corresponding to the spherical coordinates, and the coordinates within the module as shown in FIG. That is, the image data of each spherical coordinate is sequentially read from the spherical image memory, the table is subtracted from the spherical coordinate, and the module number (i)
The coordinates (x, y) in the module are taken out, and the read image data is written in the portion corresponding to the coordinates in the module image memory. By performing this for all N × M spherical coordinates, the spherical image stored in the spherical image memory is converted into a partial image of each image display module, and the spherical image is displayed on the inner wall of the spherical structure.

The coordinate conversion table is based on the arrangement of the image display modules arranged in advance on the spherical structure, and geometrically corresponds the spherical coordinates, the module number of the image display module, and the coordinates in the module. And set it. However, since it is considered that the position of the image display module will change due to the actual construction, for example, after arranging the image display modules on the spherical structure, each vertex of each image display display module actually installed from the center of the sphere The horizontal azimuth and the vertical azimuth may be measured, which may be registered in a table for each module, and geometrically calculated from this to determine the module number and the in-module coordinates.

As an image that can be displayed by the above-described spherical structure image display device, for example, when 12 pieces of the pentagonal image display panel and 20 pieces of the hexagonal image display panel are arranged, 100 pieces are arranged on each image display panel. If you use an organic EL panel with a resolution of 10,000 pixels, the total of 3200
In the case where a global image display device having a diameter of 20 m and a diameter of 20 m is configured, each pixel can display at a pitch of about 0.6 cm. Therefore, a spherical image display device with high resolution can be constructed by dividing the image display panel into a larger number of image display panels.

With respect to the luminance, if a gradation of 12 bits for each color of RGB is given, it is possible to express a total of 68 billion colors, which is 64 times that of the conventional true color display, from under all darkness to under all white light. It is possible to configure an image display device capable of coping with light objects in the universe, which are very rich in gradation.

It is to be noted that, when displaying a high gradation image as described above, a problem is a variation in luminance between a plurality of image display modules and a variation in luminance of each pixel in each image display module. However, in order to reduce the influence of this variation, a brightness correction circuit may be provided in each image display module. FIG. 9 shows an example of the brightness correction circuit. As shown, a level correction circuit 60 and a LUT (look-up table) 62 are provided between the control circuit 26 and the signal drive circuit 24 of the image display module. The LUT 62 receives the currently selected row coordinates and column coordinates from the control circuit 26, reads the brightness correction data of the pixel, and then reads the brightness correction data from the pixel.
0 is supplied to the signal drive circuit 24 to correct the brightness data.

The level correction circuit 60 is composed of, for example, a multiplication circuit and an addition circuit, and corrects the brightness information based on the gain correction information and the offset correction information given from the LUT 62. The LUT 62 is provided for each image display module, and the reference luminance signal is added to each image display module to set the gain correction information and the offset information of each pixel of the LUT 62 so as to obtain a uniform display. In addition, such LU
The setting of T may be performed in advance at the manufacturing stage of each image display module, or may be performed after the arrangement on the spherical structure.

In the above embodiment, the single spherical image memory has been described. However, the wall surface of the spherical structure is divided into a plurality of regions, and a spherical image memory and a mapping device are provided in parallel for each region. You may make it process. As a result, even when a high-resolution image is displayed on a large spherical structure, spherical image scanning for each area can be performed in parallel at the same time, so that a good spherical image with less flicker can be provided.

In the above-mentioned embodiment, the image display module is described as using a regular triangular, regular pentagonal, regular hexagonal flat image display panel, but the present invention is not limited to this, and a spherical structure. Any shape can be used as long as it can be arranged on the wall surface of the present invention, and the effect of the present invention can be obtained. Further, the image display module of the present invention does not necessarily have to be a flat panel, and image display panels having a certain curvature may be arranged in a spherical structure, and the effect of the present invention can be obtained.

In the above embodiment, the case where the image display module displays a color image has been described, but the present invention is not limited to this, and a specific single color is displayed as a grayscale image according to the purpose. It goes without saying that it is acceptable.

In the above embodiment, the spherical image signal is input to the spherical image memory 40, and the spherical image is displayed by mapping the spherical image signal to each polygon image display module by the mapping device. However, the spherical image signal may be directly input to the mapping device without providing the spherical image memory, and the effect of the present invention is achieved. Further, without using the spherical image signal, for example, CG data generated by a computer may be directly written in the spherical image memory, and this may be mapped to each image display module by the mapping device to display the spherical image. Needless to say.

The spherical structure image display device of the present invention may be provided with a data conversion device for generating a spherical image from three-dimensional spatial image data. The spherical structure image display device basically displays an image of a person looking around in a three-dimensional space on a wall surface.
If there is dimensional space image data, it can be converted into a spherical image viewed from a fixed viewpoint to generate spherical image data to be displayed by this device. This is, for example, a three-dimensional image memory that stores three-dimensional image data, a viewpoint position register that sets a three-dimensional position of a viewpoint, a horizontal orientation of a three-dimensional image viewed from the three-dimensional position set in the viewpoint position register, This can be realized by including an azimuth calculation circuit that calculates the vertical azimuth, and the input three-dimensional image data can be converted into spherical image data.

Further, the spherical structure image display device of the present invention may be provided with a three-dimensional image generating means for generating a three-dimensional image at a designated time. This can be realized, for example, by providing a simulator capable of registering a motion model of an object moving in a three-dimensional space and a time setting register for inputting a specified time. By combining this with the data conversion device, A spherical image from an arbitrary viewpoint at an arbitrary time can be displayed in real time for an image including an object moving in a dimensional space.

Since the above-described data conversion and three-dimensional image generation require a computer with high processing capability, this is installed in the center and the converted spherical image data is distributed to each spherical structure image display device. You may do it. In this way, if the central computer generates the image software of the spherical image and distributes it to the spherical structure image display devices installed in various places, not only the H / W cost but also the production cost of the image software will be increased. It can be reduced and users can be provided with services at a low price.

When the spherical structure image display device constructed as described above is used for the planetarium, it is not a fixed image by the projection original plate previously prepared as in the prior art, but
A starry sky is generated in real time from a certain viewpoint based on three-dimensional data that defines the three-dimensional position and magnitude of a star in outer space, such as the Hipparcos Catalog and GSC (Guide Star Catalog), and the shape of the star. Can be displayed. Also. A planetary motion model can be registered on a computer, three-dimensional data can be generated based on it, and this can be converted into a spherical image for display. Therefore, it is possible to freely display the image viewed from any position in outer space at any time, so that the appearance of a star when actually traveling in space can be accurately reproduced, and various astronomical phenomena from past to future Can be reproduced on the wall.

Further, when such a spherical structure image display device is used in a movie, an image of not only the front but also the entire circumference is displayed, so that a state of passing through a tunnel or moving in a cave, It can reproduce the sensation of actually moving in a three-dimensional space such as the sea or the air, and can provide powerful images that cannot be obtained with conventional planar panoramic images.

Further, when such a spherical structure image display device is used in a game, it is possible to display a celestial CG image, so that it is possible to give a feeling of floating in a three-dimensional space, and further tilt, vibrate and rotate. By installing a floor device that gives, etc., it is possible to provide a new attraction that could not be considered in the past.

When such a spherical structure image display device is used in a simulator for flight training of an aircraft or a spacecraft, it is possible to display the whole sky, so that it is possible to faithfully reproduce the external confirmation operation in a three-dimensional space. High training effect can be obtained.

Although the image display module is arranged on the inner wall of the spherical structure in the above embodiment, the image display module may be arranged on the outer wall of the spherical structure. Accordingly, it is possible to provide a new image display medium that allows the spectator to freely move around the display device and view it at his / her favorite position.

[0054]

As described above, according to the present invention, the self-luminous image display module is arranged on the wall surface of the spherical structure, the spherical image data is taken out from the spherical image memory or the spherical image signal, and the spherical surface is mapped by the mapping means. The image data is written to the corresponding position of the module image memory selected corresponding to the coordinates, and the partial image stored in each module image memory is displayed on each self-emission image display module. It is possible to display the entire sky as a series of images without causing the problem, and it is possible to provide a realistic spatial image in a planetarium, a movie, a game, a simulator, etc., which is actually in a three-dimensional space.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a spherical structure wall surface image display device according to an embodiment of the present invention.

FIG. 2 is an example of a layout drawing in which triangular flat image display panels are arranged in a spherical structure.

FIG. 3 is an example of a layout diagram in which five-screen flat image display panels are arranged on a spherical structure.

FIG. 4 is a control circuit diagram of a triangular flat image display panel.

FIG. 5 is a control circuit diagram of a pentagonal flat image display panel.

FIG. 6 is a control circuit diagram of a hexagonal flat image display panel.

FIG. 7 is a definition diagram of a method of expressing a spherical image signal.

FIG. 8 is a diagram showing an example of a coordinate conversion table of a mapping device.

FIG. 9 is a diagram illustrating an example of a brightness correction circuit.

[Explanation of symbols]

10 Spherical structure 20 Self-luminous image display module 30 module image memory 40 Spherical image memory 50 mapping device

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Claims (12)

[Claims] 1. A spherical structure wall surface image display device for displaying an image by arranging a plurality of self-luminous image display modules on the wall surface of a spherical structure, the spherical surface storing spherical image data represented by spherical coordinates. An image memory, a plurality of module image memories for individually storing partial images to be displayed on each self-luminous image display module, and spherical image data stored in the spherical image memory is taken out to correspond to the corresponding module image memories. Mapping means for writing to a position,
Spherical structure wall image display device. 2. A spherical structure wall surface image display device for displaying an image by arranging a plurality of self-luminous image display modules on the wall surface of a spherical structure, wherein a spherical surface for inputting a spherical image signal represented by spherical coordinates. Image signal input means, a plurality of module image memories for individually storing images to be displayed on each self-luminous image display module, and a spherical image signal input by the spherical image signal input means from the corresponding module image memory A spherical structure wall surface image display device, comprising: mapping means for writing in a corresponding position. 3. The spherical image signal is obtained by two-dimensionally scanning the brightness on the wall surface of the spherical structure with a horizontal azimuth or a vertical azimuth from the center of the spherical structure as a scanning axis. The spherical structure wall surface image display device according to claim 2. 4. The spherical structure according to claim 1, wherein the self-luminous image display module has control means for generating a two-dimensional scanning signal corresponding to an outer shape. Object wall image display device. 5. The self-luminous image display module is characterized in that a triangular planar image display module is arranged on a wall surface of the spherical structure.
5. The spherical structure wall surface image display device according to any one of 1. 6. The self-luminous image display module is characterized in that a flat image display module having a pentagonal shape and a flat image display module having a hexagonal shape are combined and arranged on a wall surface of the spherical structure. Item 5. The spherical structure wall surface image display device according to any one of items 1 to 4. 7. The spherical structure wall surface image display device according to claim 1, wherein the self-luminous image display module uses an organic EL panel. 8. The spherical structure wall surface image display according to any one of claims 1 to 6, wherein the self-luminous image display module uses a panel in which issuing elements are arranged in a polygonal shape. apparatus. 9. The spherical structure wall surface image display device according to claim 1, wherein the self-luminous image display module has a brightness correction unit that corrects a variation in brightness. . 10. The spherical structure wall surface image display according to claim 1, wherein the wall surface of the spherical building is divided into a plurality of regions for parallel processing. apparatus. 11. The spherical structure wall surface image display device according to claim 1, further comprising data conversion means for converting three-dimensional image data into the spherical image data. . 12. The spherical structure wall surface image display device according to claim 11, further comprising three-dimensional image generation means for generating three-dimensional image data at a designated time.