JP2013020068A - Stereoscopic image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable visual recognition of a more beautiful stereoscopic image from the whole circumference with high reproducibility by a simple structure.SOLUTION: A stereoscopic image display device includes: a cylindrical rotating part which has a rotary shaft therein and has circular flanges on the top and bottom of the rotary shaft; a driving part which rotates the rotating part around the rotary shaft as a center of rotation; a display element array whose concave side formed in a curved surface shape is a light emitting surface and which is formed by arraying a plurality of light emitting elements on the light emitting surface; a plurality of housings which incorporate the display element array and are fixed to the flanges of the rotating part; a shim which is inserted between the housing and the flange and has a thickness corresponding to a dimensional error of each housing; and a slit which is formed in the peripheral surface of the rotating part at a position facing the light emitting surface.

Description

  The present technology relates to a stereoscopic image display device, and more particularly, to a stereoscopic image display device that allows a more beautiful stereoscopic image to be visually recognized from the entire periphery with a simple configuration with good reproducibility.

  Conventionally, there is a three-dimensional display technique for displaying a stereoscopically visible image on a flat display employed in a television receiver or the like. This three-dimensional display technology uses, for example, the parallax between the left and right eyes of a person viewing the display. Specifically, for example, the left-eye image and the right-eye image are alternately displayed on the flat display, and the left-eye image is displayed only for the left eye and the right-eye image is displayed via the polarizing filter. Stereoscopic viewing is realized so that only the video can be seen.

  On the other hand, a plurality of viewpoints captured from a plurality of viewpoints provided on the circumference centering on the subject (or generated by assuming that the subject is viewed from the entire periphery by computer graphics). Many omnidirectional stereoscopic video display devices that use an image (hereinafter referred to as a viewpoint image) and perform display so that a subject can be viewed stereoscopically even when viewed from an arbitrary direction around the entire periphery have been proposed.

  For example, an all-around stereoscopic image display of a light beam reproduction method that captures an image of a subject over the entire circumference or reproduces a stereoscopic image over the entire circumference of the subject based on 2D video information for stereoscopic image display created by a computer Many proposals have been made regarding devices.

  For example, a stereoscopic video display device that can be viewed from all directions is disclosed. This stereoscopic image display device includes a viewing angle limiting screen, a rotation mechanism, an upper mirror, a lower mirror group, a projector, and a personal computer, and displays a stereoscopic image using binocular parallax.

  Also proposed is a 3D video display that can be viewed from the entire periphery, provided with a cylindrical rotating body and a motor for stereoscopic image display, and provided with a plurality of vertical lines through which light can be transmitted on the peripheral surface of the rotating body. ing. According to this 3D video display, since a stereoscopic image can be displayed in the entire 360 ° range, the stereoscopic image can be observed without wearing glasses for binocular parallax.

  However, for example, in the above-described stereoscopic image display device, since the viewing angle limiting screen, the rotation mechanism, the upper mirror, the lower mirror group, the projector, and the personal computer must be provided, the system becomes large and the control becomes complicated. .

  In addition, according to the 3D video display described above, since a stereoscopic image is displayed with light transmitted from a plurality of vertical lines provided on the peripheral surface of the rotating body, the light use efficiency is reduced and energy loss is increased. There is a fear.

  Therefore, the applicant has proposed a stereoscopic image display device that allows a stereoscopic image to be viewed from the entire periphery with good reproducibility without complicating the stereoscopic display mechanism (see, for example, Patent Document 1).

  The stereoscopic video display device has a cylindrical casing, and a plurality of display units each including a large number of small LEDs (light emitting diodes) are provided inside the casing. . In addition, the housing is provided with a slit so that images of the plurality of display units can be visually recognized from the outside of the housing through the slit. Then, by rotating the housing at a high speed, the images on the plurality of display surfaces can be viewed three-dimensionally for a user who views the side surface of the cylindrical housing from an arbitrary direction.

WO20100067838A1 publication

  However, when the stereoscopic display mechanism using the technique of Patent Document 1 is configured, there is a possibility that the slit may be distorted by rotating the housing at a high speed. That is, there is a possibility that the slit is deformed by the centrifugal force at the time of rotation and the slit width is not uniform in the vertical direction.

  For example, when the slit is deformed by the centrifugal force and the slit width is widened, leakage from adjacent pixels occurs, leading to a reduction in the resolution of the image.

  The present technology is disclosed in view of such a situation, and enables a more beautiful stereoscopic image to be visually recognized from all around with a simple configuration with a high reproducibility.

  One aspect of the present technology includes a cylindrical rotating unit having a rotating shaft inside and circular flanges above and below the rotating shaft, and a driving unit that rotates the rotating unit around the rotating shaft. A concave surface formed in a curved surface is a light emitting surface, and a display element array formed by disposing a plurality of display elements on the light emitting surface; and a flange of the rotating unit incorporating the display element array A plurality of housings fixed to each other, a shim inserted between the housing and the flange and having a thickness corresponding to a dimensional error of each of the housings, and a position of the rotating unit at a position facing the light emitting surface. And a slit provided on a peripheral surface, wherein the plurality of display elements radiate light according to the direction of the light emitting surface to the outside of the rotating unit via the slit.

  The housing is fixed by a mounting screw for fixing one end face of the housing to one of the flanges via the shim and an adjusting screw for bringing the other end face of the housing into close contact with the other flange. Can be done.

  A rotation balance screw can be attached to the flange as a weight that corrects a weight deviation in the rotating portion.

  The slit may be provided in a direction parallel to the rotation axis.

  A display control unit that performs light emission control of the plurality of display elements based on video information for a stereoscopic image can be further provided.

  The display control unit further includes a display control unit that performs light emission control of the plurality of display elements based on video information for a stereoscopic image, and the display control unit includes a matrix of m rows × n columns (m, n = 2 or greater). The m display elements arranged in a row and arranged in the row direction of the display element array perform light emission control such that light emission starts at different timings according to the rotation of the rotating unit. Can do.

  In one aspect of the present technology, a cylindrical rotary unit having a rotary shaft inside and circular flanges above and below the rotary shaft, and a drive unit that rotates the rotary unit around the rotary shaft. A concave surface formed in a curved surface is a light emitting surface, and a display element array formed by disposing a plurality of display elements on the light emitting surface; and the rotating element including the display element array A plurality of housings fixed to a flange, a shim inserted between the housing and the flange and having a thickness corresponding to a dimensional error of each of the housings, and the rotating portion at a position facing the light emitting surface And a slit according to the direction of the light emitting surface is radiated to the outside of the rotating part through the slit.

  According to the present technology, with a simple configuration, a more beautiful stereoscopic image can be visually recognized from the entire periphery with high reproducibility.

It is a figure which shows the structural example of the three-dimensional video display system to which this technique is applied. It is a perspective view of the display part provided in the all around stereoscopic vision video display apparatus. It is a back perspective view of the array type display which consists of a light housing and a light emitting element substrate. It is sectional drawing of an array type display. It is a perspective view of a light emitting element substrate. It is sectional drawing of a light emitting element substrate. It is sectional drawing which shows the structural example of LED. It is the schematic diagram looked down from the rotating shaft direction which shows the operation example of a omnidirectional stereoscopic image display apparatus. It is explanatory drawing which shows the example of the locus | trajectory of the light emission point observed from the viewpoint p. It is explanatory drawing which shows another example of a locus | trajectory of the light emission point observed from the viewpoint p. It is explanatory drawing which shows another example of locus | trajectory of the light emission point observed from the viewpoint p. It is a figure explaining a mode that a light ray is output via a slit with respect to a some viewpoint. It is another figure explaining a mode that a light ray is output via a slit with respect to several viewpoints. It is another figure explaining a mode that a light ray is output via a slit with respect to several viewpoints. It is a figure which shows the structural example inside the cylindrical part at the time of applying this technique. It is a figure explaining the axial blurring at the time of a cylindrical part rotating. It is a figure explaining insertion of a shim. It is a figure explaining an adjustment screw. It is a figure explaining the screw for rotation balance.

  Hereinafter, embodiments of the technology disclosed herein will be described with reference to the drawings.

  FIG. 1 shows a configuration example of a 3D video display system to which the present technology is applied. The three-dimensional image display system 10 includes an image signal processing device 20 and an omnidirectional stereoscopic video display device 30.

  The image signal processing device 20 supplies, for example, a video signal obtained by capturing an image of a subject from all around directions to the all around 3D image display device 30.

  The omnidirectional stereoscopic video display device 30 is configured such that a display unit 40 (FIG. 2) is built in a cylindrical unit 31 provided with a plurality of slits 32. The slit 32 is provided in parallel with the rotation axis of the cylindrical portion 31. The display unit 40 is composed of the same number of array type displays as the number of slits 32. The omnidirectional stereoscopic video display device 30 extracts an image viewed from each viewpoint around the entire periphery of the subject from the video signal input from the image signal processing device 20, and displays the image on each array type display in a predetermined order. In accordance with this, the cylindrical portion 31 is rotationally driven at a high speed.

  As a result, the user who looks at the side surface of the cylindrical portion 31 of the omnidirectional stereoscopic video display device 30 sees the video of the array type display constituting the display unit 40 leaking from the slit 32. That is, based on the video signal supplied from the image signal processing device 20, the light emission of a plurality of LEDs provided in the array type display is controlled as will be described later. This image appears to be a color that the image originally has because the light of the R, G, B component LEDs arranged at the corresponding positions of each of the plurality of array-type displays appears. Is viewed from an arbitrary direction, the user can visually recognize a stereoscopic image covering the entire periphery of the subject of the video signal.

  Next, a configuration example of the display unit 40 built in the cylindrical unit 31 of the omnidirectional stereoscopic video display device 30 will be described with reference to FIGS. 2 to 6. 2 is a configuration example of the display unit 40, FIG. 3 is a rear perspective view of the array display, and FIG. 4 is a cross-sectional view of the array display. 5 is a perspective view of the light emitting element substrate 43, and FIG. 6 is a cross-sectional view of the light emitting element substrate 43.

  In the case of the configuration example shown in FIG. 2, the display unit 40 is configured by three array type displays. Each array type display is configured to be mounted on the light housing 41 so that a curved surface is formed by each LED surface 52 of the plurality of light emitting element substrates 43.

  The light housings 41 are arranged on the pedestal of the cylindrical portion 31 at an equal angle (120 degrees in this case). Thereby, the shake of a rotating shaft when the cylindrical part 31 is rotationally driven can be reduced.

  The light housing 41 is provided with a slit 42 on its side surface, and the display unit 40 is installed inside the cylindrical portion 31 so that the slit 42 and the slit 32 provided in the cylindrical portion 31 coincide with each other. ing.

  The light housing 41 has a substantially semi-cylindrical shape having a hollow structure, and a positioning hole is provided on the arc-shaped side surface for attaching the light emitting element substrate 43. Thereby, the light emitting element substrate 43 can be attached to a predetermined position of the light housing 41 with high accuracy. The plurality of light emitting element substrates 43 are attached in a fin shape according to the positioning holes. With such a shape feature, heat generated in the light emitting element substrate 43 and the like can be efficiently exhausted when the display unit 40 is rotationally driven.

  Furthermore, holes are provided in the upper and lower surfaces of the light housing 41. As a result, when the display unit 40 is driven to rotate, an air flow is generated in the light housing 41 through the upper and lower holes, so that exhaust heat is promoted.

  The light emitting element substrate 43 is provided with attachments 51 for attachment to the light housing 41 at both ends in the longitudinal direction. Note that the attachment 51 is made of a material having high thermal conductivity such as aluminum. Thereby, the heat generated in the light emitting element substrate 43 can be efficiently transferred to the light housing 41 side or radiated.

  The light-emitting element substrate 43 has an L-shaped (or inverted L-shaped) cross section, and a plurality of LEDs, which are light-emitting elements, are arranged at positions corresponding to L-shaped short sides. A rectangular LED surface 52 is attached. That is, the LED surface 52 is attached so that the longitudinal direction thereof is parallel to the slit 42 of the light housing 41. Furthermore, a driver board 53 for driving the LED is attached to the position which becomes the long side.

  As shown in FIG. 4, the screen of the array type display is formed in an arc shape. That is, in the array type display, each LED surface 52 of the plurality of light emitting element substrates 43 is arranged in a circular arc shape toward a point on a line connecting the arc center of the screen and the slit 42 of the light housing 41. It is constituted by. Thereby, the utilization efficiency of the light irradiated from LED can be raised. Further, since a gap is formed between the light emitting element substrates 43, the generated heat can be radiated.

  Further, the plurality of light emitting element substrates 43 constituting the array type display are used in the L type and the inverted L type in cross section with the center of the array type display as a boundary. As a result, when the array type display is configured using only one of the L-type and the inverted L-type, the left-right non-uniformity of the image due to the step of the screen (for example, the vertical display only on the right side (or left side) of the screen). The pixel gaps in the direction are conspicuous).

  As described above, the LED surface 52 is arranged in a direction on a line connecting the arc center of the array display and the slit 42. Furthermore, each LED on the LED surface 52 also has a higher directivity of irradiation light than conventional LEDs, so that light use efficiency is improved.

  FIG. 7 shows a configuration example of the LED forming the LED surface 52. In this example, a resin lens 64 is formed around the LED chip 61 provided on the substrate 60 so as to cover the LED chip 61. By forming the resin lens 64 in a circular shape when viewed from the upper surface of the LED, the irradiation light of the LED can be collected in the front, so that stray light is reduced and the light utilization efficiency is improved. Therefore, the contrast of the displayed image is improved. In addition, since the apparent light emitting area is increased, it is possible to suppress the noticeable dot feeling of the stereoscopic image.

  Further, as a method of forming the position and shape of the resin lens 64 with high accuracy, the low surface tension film 63 is formed by applying a water / oil repellent treatment agent or the like other than the region of the substrate 60 where the resin lens 64 is formed. Has been. That is, by forming the low surface tension film 63 with high positional accuracy, the position and shape of the resin lens 64 can be formed with high accuracy.

  Next, the operation principle of the omnidirectional stereoscopic image display device 30 will be described with reference to FIGS. FIG. 8 is a schematic view looking down from the direction of the rotation axis showing an operation example of the cylindrical portion 31 of the omnidirectional stereoscopic image display device 30.

  In the example of FIG. 8, the cylindrical portion 31 has a structure that rotates in the direction of the arrow R with the rotation shaft 103 as the rotation center or in the opposite direction. Further, in this example, for simplicity of explanation, it is assumed that only one light housing 41 is mounted inside the cylindrical portion 31, and the array type display of the light housing 41 is displayed as the array type display 101. ing. That is, the arcuate curved surface denoted by reference numeral 101 in FIG. 8 corresponds to a curved surface formed in an arc shape by the plurality of LED surfaces 52 as described above with reference to FIG.

  In this example, in order to simplify the description, the cylindrical portion 31 is provided with one slit 102 so that light emitted from the array type display 101 does not leak from other than the slit portion. ing. With this slit structure, the light emitted from each light emitting element 201 to light emitting element 212 of the array type display 101 is greatly restricted in the horizontal emission angle from the slit 102.

  Here, the LEDs are expressed as light emitting elements, and the number thereof is 12 rows. That is, the LED surface is formed by connecting LEDs in the depth direction of the paper surface at the positions indicated by the light emitting elements 201 to 212 in the drawing. Therefore, in the array type display 101, the light emitting elements are arranged in a matrix of m rows × n columns (m, n = 2 or more integers), but in the figure, m (here, m = 12). ) Described as light emitting elements in a row. By the light emitting elements 201 to 212, the light of the stereoscopic image formed with reference to the rotation axis 103 leaks from the inside of the cylindrical portion 31 to the outside through the slit 102. Here, each of the light emitting elements 201 to 212 and each direction connected to the slit 102 is indicated by a vector.

  A direction indicated by a line segment connecting the light emitting element 201 and the slit 102 is a direction of light leaking from the light emitting element 201 through the slit 102. Hereinafter, this direction is described as “vector 201V direction”. Hereinafter, similarly, a direction indicated by a line segment connecting the light emitting element 202 and the slit 102 is a direction of light leaking from the light emitting element 202 through the slit 102. This direction is described as “vector 202V direction”. Similarly, a direction indicated by a line segment connecting the light emitting element 212 and the slit 102 is a direction of light leaking from the light emitting element 212 through the slit 102. This direction is described as “vector 212V direction”.

  For example, the light output from the light emitting element 201 passes through the slit 102 and is emitted in the direction of the vector 201V. The light output from the light emitting element 202 passes through the slit 102 and is emitted in the vector 202V direction. Similarly, light output from the light emitting elements 202 to 212 passes through the slit 102 and is emitted in the directions of the vectors 203V to 212V. As described above, since the light emitted from each of the light emitting elements 201 to 212 is emitted in different directions, it is possible to reproduce light for one vertical line regulated by the slit 102.

  By rotating and scanning the cylindrical portion 31 having such a slit structure with respect to the viewpoint p, a cylindrical light beam reproduction surface can be formed. Furthermore, by supplying a video signal to the array display 101 in accordance with the angle of rotational scanning with respect to the viewpoint p, it becomes possible to output an arbitrary reproduction beam.

  Next, an example of the locus of the light emission point observed from the viewpoint p will be described.

  In the array display 101, for example, twelve light emitting elements are arranged at different positions in a plane orthogonal to the rotation axis 103 as described above. Each light emitting element emits light for a different viewpoint position to the outside through the slit 102 according to the rotation of the cylindrical portion 31. Here, it is assumed that the direction of the rotation axis 103 is observed from any one viewpoint position around the cylindrical portion 31 in a state where the cylindrical portion 31 is rotating. At this time, light emission control of the plurality of light emitting elements is performed so that, for example, a planar image corresponding to an arbitrary viewpoint position is formed inside the cylindrical portion 31 by the locus of the light emitting points by the plurality of light emitting elements. At each viewpoint position, for example, a planar image having a parallax corresponding to the viewpoint position is observed. Therefore, when observed from any two viewpoint positions corresponding to the positions of both eyes, for example, planar images having parallax according to each viewpoint position are observed. Thereby, the observer can recognize a stereoscopic image at an arbitrary position around the rotating unit.

  9 to 11 are explanatory diagrams showing examples of the locus of the light emission point observed from the viewpoint p. As shown in FIGS. 9A to 9D, when the cylindrical portion 31 is rotated at a constant speed and rotationally scanned with respect to the viewpoint p = 300, the light emitting elements observed from the viewpoint 300 are light emitting elements 201 at intervals of time T. .. In order from the light emitting elements 202, 203,.

  A structure in which the locus of the light emitting point (black small circle in the figure) looks like a flat surface is realized by adjusting the light emitting surface shape of the array type display 101 and the position of the slit 102. For example, when the array type display 101 is observed through the slit 102 at the viewpoint 300 at time t = 0 shown in FIG. 9A, light leaking from the light emitting element 201 is observed.

  At time t = T shown in FIG. 9B, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 202 is observed. The first white small circle from the right side in the drawing indicates the light emitting point of the light emitting element 201. At time t = 2T shown in FIG. 9C, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 203 is observed. The second small circle mark in FIG. 9C indicates the light emitting point of the light emitting element 202.

  At time t = 3T shown in FIG. 9D, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 204 is observed. A third small circle mark in FIG. 9D indicates a light emitting point of the light emitting element 203.

  Further, when the array type display 101 is observed through the slit 102 at the viewpoint 300 at time t = 4T shown in FIG. 10A, light leaking from the light emitting element 205 is observed. A fourth small circle mark in FIG. 10A indicates a light emitting point of the light emitting element 204. At time t = 5T shown in FIG. 10B, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 206 is observed. A fifth small circle mark in FIG. 10B indicates a light emitting point of the light emitting element 205.

  At time t = 6T shown in FIG. 10C, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 207 is observed. A sixth small circle mark in FIG. 10C indicates the light emission point of the light emitting element 206. At time t = 7T shown in FIG. 10D, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 208 is observed. A seventh small circle mark in FIG. 10D indicates the light emitting point of the light emitting element 207.

  At time t = 8T shown in FIG. 11A, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 209 is observed. The eighth small circle mark in FIG. 11A indicates the light emitting point of the light emitting element 208. At time t = 9T shown in FIG. 11B, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 210 is observed. A ninth small circle mark in FIG. 11B indicates a light emitting point of the light emitting element 209.

  At time t = 10T shown in FIG. 11C, when the array display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 211 is observed. A tenth small circle mark in FIG. 11C indicates a light emitting point of the light emitting element 210. When the array type display 101 is observed through the slit 102 at the viewpoint 300 at time t = 11T shown in FIG. 11D, light leaking from the light emitting element 212 is observed. An eleventh small circle mark in FIG. 11D indicates a light emitting point of the light emitting element 211. A twelfth black small circle mark in FIG. 11D indicates a light emitting point of the light emitting element 212.

  Next, a state in which light rays are output through the slit 102 for a plurality of viewpoints will be described. FIGS. 12 to 16 are diagrams for explaining how light rays are output through the slit 102 for a plurality of viewpoints p. In this example, 60 viewpoints p = 300 to 359 are set every 6 ° with respect to the entire circumference (360 °) of the array display 101, and the cylindrical portion 31 is 30 from an arbitrary reference position. A state of a section rotating from time t = 0 to t = 5T (1/12 turn) is shown.

  As shown in FIGS. 12A and 12B, FIGS. 13A and B, and FIGS. With this output, the locus of the light emitting point is observed in a plane not only for the viewpoint p = 300 but also for other viewpoints p = 349 to 359.

  For example, at time t = 0 shown in FIG. 12A, when the array type display 101 is observed through the slit 102 at the viewpoint 300 (p is omitted), light leaking from the light emitting element 201 is observed. In this example, the cylindrical portion 31 is rotated clockwise, and the viewpoint is shifted by an angle of 6 ° with respect to the viewpoint 300. When the array type display 101 is observed through the slit 102 at another viewpoint 359 that exists counterclockwise by an angle of 6 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 202 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 358 that exists counterclockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 203 is observed. When the array type display 101 is observed through the slit 102 at the viewpoint 357 that exists in the counterclockwise direction by an angle of 18 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 204 is observed.

  When the array type display 101 is observed through the slit 102 at the viewpoint 356 that exists in the counterclockwise direction by an angle of 24 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 205 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 355 that exists counterclockwise by an angle of 30 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 206 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 354 that exists counterclockwise by an angle of 36 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 207 is observed. When the array-type display 101 is observed through the slit 102 at a viewpoint 353 that exists counterclockwise by an angle of 42 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 208 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 352 that exists counterclockwise by an angle of 48 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 209 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 351 that exists counterclockwise by an angle of 54 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 210 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 350 that exists counterclockwise by an angle of 60 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 211 is observed. When the array type display 101 is observed through the slit 102 at the viewpoint 349 that exists in the counterclockwise direction by an angle of 66 ° from the viewpoint 300 shown in FIG. 12A, light leaking from the light emitting element 212 is observed.

  Further, when the array type display 101 is observed at the viewpoint 300 through the slit 102 at time t = T shown in FIG. 12B, light leaking from the light emitting element 202 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 301 that exists in the clockwise direction by an angle of 6 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 201 is observed.

  When the array type display 101 is observed through the slit 102 at another viewpoint 359 that exists counterclockwise by an angle of 6 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 203 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 358 that exists counterclockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 204 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 357 that exists in an anticlockwise direction by an angle of 18 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 205 is observed. When the array-type display 101 is observed through the slit 102 at a viewpoint 356 that exists counterclockwise by an angle of 24 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 206 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 355 that exists counterclockwise by an angle of 30 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 207 is observed. When the array-type display 101 is observed through the slit 102 at a viewpoint 354 that exists in the counterclockwise direction by an angle of 36 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 208 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 353 that exists counterclockwise by an angle of 42 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 209 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 352 that exists counterclockwise by an angle of 48 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 210 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 351 that exists counterclockwise by an angle of 54 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 211 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 350 that exists counterclockwise by an angle of 60 ° from the viewpoint 300 shown in FIG. 12B, light leaking from the light emitting element 212 is observed.

  Further, when the array type display 101 is observed through the slit 102 at the viewpoint 300 at time t = 2T shown in FIG. 13A, light leaking from the light emitting element 203 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 301 that exists in the clockwise direction by an angle of 6 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 202 is observed.

  When the array-type display 101 is observed through the slit 102 at another viewpoint 302 that exists clockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 201 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 359 that exists counterclockwise by an angle of 6 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 204 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 358 that exists counterclockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 205 is observed. When the array type display 101 is observed through the slit 102 at the viewpoint 357 that exists in the counterclockwise direction by an angle of 18 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 206 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 356 that exists counterclockwise by an angle of 24 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 207 is observed. When the array display 101 is observed through the slit 102 at a viewpoint 355 that exists counterclockwise by an angle of 30 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 208 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 354 that exists counterclockwise by an angle of 36 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 209 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 353 that exists in the counterclockwise direction by an angle of 42 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 210 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 352 that exists counterclockwise by an angle of 48 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 211 is observed. When the array-type display 101 is observed through the slit 102 at a viewpoint 351 existing counterclockwise by an angle of 54 ° from the viewpoint 300 shown in FIG. 13A, light leaking from the light emitting element 212 is observed.

  Further, when the array display 101 is observed through the slit 102 at the viewpoint 300 at time t = 3T shown in FIG. 13B, light leaking from the light emitting element 204 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 301 that exists in the clockwise direction by an angle of 6 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 203 is observed.

  When the array-type display 101 is observed through the slit 102 at another viewpoint 302 that exists clockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 202 is observed. When the array-type display 101 is observed through the slit 102 at another viewpoint 303 that exists clockwise by an angle of 18 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 201 is observed.

  When the array type display 101 is observed through the slit 102 at another viewpoint 359 that exists counterclockwise by an angle of 6 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 205 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 358 that exists counterclockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 206 is observed.

  When the array type display 101 is observed through the slit 102 at the viewpoint 357 that exists in the counterclockwise direction by an angle of 18 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 207 is observed. When the array-type display 101 is observed through the slit 102 at a viewpoint 356 that exists counterclockwise by an angle of 24 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 208 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 355 that exists counterclockwise by an angle of 30 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 209 is observed. When the array-type display 101 is observed through the slit 102 at a viewpoint 354 that exists counterclockwise by an angle of 36 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 210 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 353 that exists counterclockwise by an angle of 42 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 211 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 352 that exists counterclockwise by an angle of 48 ° from the viewpoint 300 shown in FIG. 13B, light leaking from the light emitting element 212 is observed.

  Furthermore, at time t = 4T shown in FIG. 14A, when the array type display 101 is observed through the slit 102 at the viewpoint 300, light leaking from the light emitting element 205 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 301 that exists in the clockwise direction by an angle of 6 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 204 is observed.

  When the array-type display 101 is observed through the slit 102 at another viewpoint 302 that exists clockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 203 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 303 that exists in the clockwise direction by an angle of 18 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 202 is observed.

  When the array type display 101 is observed through the slit 102 at another viewpoint 304 that exists in the clockwise direction by an angle of 24 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 201 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 359 that exists counterclockwise by an angle of 6 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 206 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 358 that exists counterclockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 207 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 357 that exists in an anticlockwise direction by an angle of 18 ° from the viewpoint 300 illustrated in FIG. 14A, light leaking from the light emitting element 208 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 356 that exists counterclockwise by an angle of 24 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 209 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 355 that exists counterclockwise by an angle of 30 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 210 is observed.

  When the array type display 101 is observed through the slit 102 at a viewpoint 354 that exists in the counterclockwise direction by an angle of 36 ° from the viewpoint 300 shown in FIG. When the array-type display 101 is observed through the slit 102 at a viewpoint 353 that exists counterclockwise by an angle of 42 ° from the viewpoint 300 shown in FIG. 14A, light leaking from the light emitting element 212 is observed.

  Further, when the array type display 101 is observed at the viewpoint 300 through the slit 102 at time t = 5T shown in FIG. 14B, light leaking from the light emitting element 206 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 301 that exists in the clockwise direction by an angle of 6 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 205 is observed.

  When the array-type display 101 is observed through the slit 102 at another viewpoint 302 that exists clockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 204 is observed. When the array-type display 101 is observed through the slit 102 at another viewpoint 303 that exists clockwise by an angle of 18 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 203 is observed.

  When the array-type display 101 is observed through the slit 102 at another viewpoint 304 that exists clockwise by an angle of 24 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 202 is observed. When the array type display 101 is observed through the slit 102 at another viewpoint 305 that is clockwise by an angle of 30 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 201 is observed.

  When the array type display 101 is observed through the slit 102 at another viewpoint 359 that exists counterclockwise by an angle of 6 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 207 is observed. When the array type display 101 is observed through the slit 102 at a viewpoint 358 that exists counterclockwise by an angle of 12 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 208 is observed.

  When the array type display 101 is observed through the slit 102 at the viewpoint 357 that exists in the counterclockwise direction by an angle of 18 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 209 is observed. When the array-type display 101 is observed through the slit 102 at a viewpoint 356 that exists counterclockwise by an angle of 24 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 210 is observed.

  When the array-type display 101 is observed through the slit 102 at a viewpoint 355 that exists counterclockwise by an angle of 30 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 211 is observed. When the array-type display 101 is observed through the slit 102 at a viewpoint 354 that exists counterclockwise by an angle of 36 ° from the viewpoint 300 shown in FIG. 14B, light leaking from the light emitting element 212 is observed.

  Note that at times t = 6T to 11T, similarly, light leaking from the twelve light emitting elements 201 to 212 is observed shifted by one. During this time, the cylindrical portion 31 rotates from an angle of 30 ° to 60 °. Therefore, when the cylindrical portion 31 is rotated all around (one round), that is, 360 °, light emission from the twelve light emitting elements 201 to 212 at time t = 0 to 59T is observed. In this manner, the array type display 101 is observed through the slit 102 from another viewpoint existing in the clockwise direction and the counterclockwise direction with respect to the angle 6 ° from the viewpoint 300. As a result, the light leaking from the twelve light emitting elements 201 to 212 can be observed shifted by one.

  As described above, according to the example of the locus of the light emitting points by the array type display 101, the locus of the light emitting points at time t = 0 to 59T is observed in a plane at all (60 points) viewpoints 300 to 359. The That is, by controlling the light emitting element 201 to the light emitting element 212 to emit light at different timings according to the rotation of the cylindrical portion 31, it is possible to observe an arbitrary image at the viewpoint 300 to the viewpoint 359.

  In the three-dimensional image display system 10, as described above, the emission angle of the light emitted from the light emitting elements 201 to 212 of the array type display 101 in the horizontal direction from the slit 102 is greatly limited. That is, since the light from each of the light emitting elements 201 to 212 is emitted in different directions, it is possible to reproduce light for one vertical line regulated by the slit 102.

  In the three-dimensional image display system 10, as described above, the array type display 101 is observed through the slit 102 from another viewpoint that exists clockwise or counterclockwise from the viewpoint 300. As a result, the light leaking from the twelve light emitting elements 201 to 212 can be observed shifted by one. That is, assuming that the image is observed at each viewpoint around the cylindrical portion 31, the light emission of each light emitting element is controlled according to the rotation angle of the cylindrical portion 31.

  As a result, different three-dimensional images can be observed at each position around the omnidirectional stereoscopic video display device 30.

  In order for the functions of the three-dimensional image display system 10 to be appropriately exerted, the light leaking from the slit 102 (or the slit 32 of the cylindrical portion 31 in FIG. 1) at each viewpoint is always the light emitting elements 201 to 201. Of the light emitting elements 212, any one of the light emitting elements assumed in advance needs to be used. Therefore, the light emitted from the light emitting elements 201 to 212 of the array display 101 must always be appropriately limited in the left and right radiation angles by the slit 102. Further, in order to assume in advance an image to be observed at each viewpoint around the cylindrical portion 31, for example, it is necessary to accurately calculate the vectors 201V to 212V described above.

  For this reason, the rotating shaft 103 of the cylindrical part 31 must always be such that the cylindrical part 31 is perpendicular to the pedestal. Similarly, the light housing 41 is positioned with a very high accuracy so that the slit 42 on the side surface of the light housing 41 and the slit 32 provided in the cylindrical portion 31 are accurately parallel to each other. Must be fixed.

  For example, when the axial blur occurs in the cylindrical portion 31, the cylindrical portion 31 is not fixed perpendicularly to the pedestal, so the direction of light emitted from the light emitting elements 201 to 212 matches the vectors 201V to 212V. Disappear.

  However, for example, when a dimensional error occurs in the manufacturing process of the light housing 41, shaft runout may occur. Although not shown in the drawing, each part disposed inside the cylindrical portion 31 is connected to many electric wires and the like, and the weight may be biased inside the cylindrical portion 31. When the cylindrical portion 31 is rotated at a high speed in a state where the weight is uneven in the cylindrical portion 31, shaft shake also occurs.

  Therefore, in the present technology, positioning is performed accurately as follows, and shaft shake can be suppressed.

  FIG. 15 is a diagram illustrating an internal configuration example of the cylindrical portion 31 when the present technology is applied.

  As shown in the figure, the cylindrical portion 31 includes a circular upper flange 31a and a lower flange 31b, and a shaft portion 31c that connects the upper flange 31a and the lower flange 31b. A housing 41 is attached. In this example, unlike the case described above with reference to FIGS. 2 to 5, the light housing 41 configured so that the light emitting element substrate 43 is not exposed to the outside is used.

  As shown in the figure, the light housing 41 is fixed to the upper flange 31a and the lower flange 31b by mounting screws. In the example shown in the figure, the light housing 41 seems to be fixed only to the upper flange 31a, but actually, the light housing 41 is also fixed to the lower flange 31b by screws or the like.

  Also, as shown in the figure, when the light housing 41 is fixed to the upper flange 31a and the lower flange 31b with mounting screws, a shim 401 is incorporated as necessary.

  For example, as shown in FIG. 16, if a dimensional error occurs in the two light housings inside the cylindrical portion 31, shaft shake occurs. In the example of FIG. 16, the length of the light housing 41-1 in the vertical direction in the drawing is less than that of the light housing 41-2. It exceeds the vertical length in the figure.

  In this state, when the light housing 41-1 and the light housing 41-2 are fixed to the upper flange 31a and the lower flange 31b by the mounting screws 421-1 and 421-2, the shaft portion 31c is moved to the right side in the figure. Tilt to cause shaft shake.

  Therefore, as shown in FIG. 17, a shim 401-1 is inserted between the light housing 41-1 and the upper flange 31a, and a shim 401-2 is inserted between the light housing 41-2 and the upper flange 31a. In the example of the figure, the shim 401-1 and the shim 401-2 are configured to have different thicknesses, and the shim 401-2 is thicker than the shim 401-1. Then, with the shim 401-1 and shim 401-2 inserted, the light housing 41-1 and the light housing 41-2 are connected to the upper flange 31a and the lower flange by the mounting screws 421-1 and 421-2. It fixes to 31b.

  By inserting the shim 401-1 and the shim 401-2 in this way, it is possible to prevent the shaft portion 31c from being tilted and to prevent shaft shake.

  In addition, although the example which inserts a shim between the light housing 41-1 or the light housing 41-2 and the upper flange 31a has been described here, the light housing 41-1 or the light housing 41-2 and the lower part are described. A shim may be inserted between the flanges 31b.

  As shown in FIG. 18, after the shim 401-1 and shim 401-2 are inserted to fix the light housing 41-1 and the light housing 41-2, the adjustment screw 431-1 and the adjustment screw are further added. Adjustment using 431-2 is preferably performed. For example, the adjustment screw 431-1 and the adjustment screw 431-2 are provided with a spiral groove in a direction opposite to the mounting screw. By rotating the adjustment screw, the right side of the light housing 41-1 in the drawing is illustrated. The left side of the light housing 41-2 in the drawing is pushed downward.

  By doing in this way, the light housing 41-1 and the light housing 41-2 can be fixed in a more stable state, and as a result, the effect of preventing shaft shake can be further enhanced.

  In the above description, the adjustment screw 431-1 and the adjustment screw 431-2 have been described as being provided with a spiral groove in the direction opposite to the mounting screw. However, it is not always necessary to provide a spiral groove in the reverse direction. Absent. For example, the configuration of the screw hole is changed to a part of the upper flange 31a, and the adjustment screw is inserted into the screw hole and rotated, whereby the right side of the light housing 41-1 in the drawing and the left side of the light housing 41-2 in the drawing are rotated. May be pushed downward.

  That is, the upper end surfaces of the light housing 41-1 and the light housing 41-2 are fixed to the upper flange 31a via the shim 401-1 and the shim 401-2 by the mounting screw 421-1 and the mounting screw 421-2. You can do so. Then, the lower end surface of the light housing 41-1 and the light housing 41-2 may be brought into close contact with the lower flange 31b by the adjustment screw 431-1 and the adjustment screw 431-2.

  In addition, as described above, each part disposed inside the cylindrical portion 31 is connected with a lot of electrical wiring and the like, and there may be a weight deviation inside the cylindrical portion 31. When the cylindrical portion 31 is rotated at a high speed in a state where the weight is uneven in the cylindrical portion 31, shaft shake also occurs.

  Therefore, as shown in FIG. 19, screws for rotation balance are attached to the upper flange 31a and the lower flange 31b. In the example shown in the figure, a plurality of rotation balancing screws are attached to positions close to the outer periphery (positions far from the center of the circle) in the circular upper flange 31a and lower flange 31b. Thus, by attaching the screw for rotation balance, the deviation of the weight inside the cylindrical portion 31 is corrected.

  In the figure, only the head of the rotation balance screw is drawn, and the rotation balance screw is shown as a plurality of circles arranged along substantially the outer periphery of the circular upper flange 31a and lower flange 31b. Has been. Further, in the figure, for convenience, only the rotation balance screw 451-1 and the rotation balance screw 451-2 attached to the upper flange 31a are denoted by reference numerals, but other numbers shown near the outer periphery of the upper flange 31a. Each of the circles is also a rotation balancing screw. Further, in the drawing, for convenience, only the rotation balance screw 451-101 and the rotation balance screw 451-102 attached to the lower flange 31b are denoted by reference numerals, but other numbers shown in the vicinity of the outer periphery of the lower flange 31b. Each of the circles is also a rotation balancing screw. When it is not necessary to individually distinguish the rotation balance screws, they will be referred to as rotation balance screws 451 as appropriate.

  In the example of FIG. 19, the rotation balance screws 451 are attached at equal intervals near the outer periphery of the upper flange 31 a and the lower flange 31 b, but in reality, the rotation is performed according to the weight deviation inside the cylindrical portion 31. A balancing screw 451 is attached. Accordingly, in FIG. 19, even if the rotation balance screw 451 is attached, there is actually a position where the rotation balance screw 451 is not attached. That is, the rotation balance screw 451 is attached as a weight for correcting the weight deviation in the cylindrical portion 31.

  By doing in this way, generation | occurrence | production of the bias | inclination of a weight can be suppressed inside the cylindrical part 31, and a shaft shake can be prevented.

  Thus, according to the present technology, it is possible to prevent the shaft portion 31 from being inclined, and thus it is possible to prevent shaft shake. Moreover, since it is possible to suppress the occurrence of weight unevenness inside the cylindrical portion 31, shaft runout can be prevented. As a result, the light emitted from the light emitting elements 201 to 212 of the array type display 101 can always be appropriately limited in the horizontal emission angle by the slit 102. Thereby, an image as assumed in advance can be observed at each viewpoint around the cylindrical portion 31.

  Therefore, according to the present technology, it is possible to visually recognize a more beautiful stereoscopic image from the entire periphery with a simple configuration and with high reproducibility.

  Note that the series of processes described above in this specification includes processes that are performed in parallel or individually even if they are not necessarily processed in time series, as well as processes that are performed in time series in the order described. Is also included.

  The embodiments of the present technology are not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present technology.

  In addition, this technique can also take the following structures.

(1) a cylindrical rotating part having a rotating shaft inside and circular flanges above and below the rotating shaft;
A drive unit that rotates the rotating unit around the rotation axis;
A display element array formed by arranging a plurality of display elements on the light emitting surface, the concave side formed in a curved surface is a light emitting surface,
A plurality of housings that incorporate the display element array and are fixed to the flange of the rotating portion;
A shim inserted between the housing and the flange and having a thickness corresponding to a dimensional error of each of the housings;
A slit provided on the peripheral surface of the rotating part at a position facing the light emitting surface;
The plurality of display elements are:
An image display device that emits light according to the direction of the light emitting surface to the outside of the rotating unit through the slit.
(2) The housing is
(1) One end face of the housing is fixed by an attaching screw for fixing the one end face to the one flange via the shim and an adjusting screw for bringing the other end face of the housing into close contact with the other flange. ) Image display device.
(3) The flange includes
The image display device according to (1) or (2), wherein a rotation balance screw is attached as a weight that corrects a weight deviation in the rotating portion.
(4) The image display device according to any one of (1) to (3), wherein the slit is provided in a direction parallel to the rotation axis.
(5) The image display device according to any one of (1) to (4), further including a display control unit that performs light emission control of the plurality of display elements based on video information for a stereoscopic image.
(6) a display control unit that performs light emission control of the plurality of display elements based on video information for a stereoscopic image;
The display control unit is arranged in a matrix of m rows × n columns (m, n = 2 or more integers),
Any one of the m display elements arranged in the row direction of the display element array performs light emission control so as to start light emission at different timings according to the rotation of the rotation unit (1) to (5) The image display device described in 1.

  10 3D image display system, 30 all-around 3D image display device, 31 cylindrical part, 31a upper flange, 31b lower flange, 31c shaft part, 32 slit, 40 display part, 41 light housing, 42 slit, 43 light emitting element substrate, 51 Attachment, 52 LED surface, 401-1, 401-2 shim, 421-1, 421-2 Mounting screw, 431-1, 431-2 Adjustment screw, 451 Rotation balance screw

Claims (6)

A cylindrical rotating part having a rotating shaft inside and circular flanges above and below the rotating shaft;
A drive unit that rotates the rotating unit around the rotation axis;
A display element array formed by arranging a plurality of display elements on the light emitting surface, the concave side formed in a curved surface is a light emitting surface,
A plurality of housings that incorporate the display element array and are fixed to the flange of the rotating portion;
A shim inserted between the housing and the flange and having a thickness corresponding to a dimensional error of each of the housings;
A slit provided on the peripheral surface of the rotating part at a position facing the light emitting surface;
The plurality of display elements are:
An image display device that emits light according to the direction of the light emitting surface to the outside of the rotating unit through the slit. The housing is
A fixing screw for fixing one end face of the housing to one of the flanges via the shim and an adjusting screw for bringing the other end face of the housing into close contact with the other flange. 2. The image display device according to 1. The flange includes
The image display apparatus according to claim 1, wherein a rotation balance screw is attached as a weight for correcting a weight deviation in the rotation unit. The image display device according to claim 1, wherein the slit is provided in a direction parallel to the rotation axis. The image display apparatus according to claim 1, further comprising: a display control unit that performs light emission control of the plurality of display elements based on video information for a stereoscopic image. A display control unit that performs light emission control of the plurality of display elements based on video information for a stereoscopic image;
The display control unit is arranged in a matrix of m rows × n columns (m, n = 2 or more integers),
The image display apparatus according to claim 1, wherein the m display elements arranged in the row direction of the display element array perform light emission control such that light emission starts at different timings according to the rotation of the rotating unit.

Images