JPH046055Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a three-dimensional display device that utilizes the afterimage effect of the human eye.

[Purpose of the invention] An object of the invention is to provide a stereoscopic display device that performs a three-dimensional display (stereoscopic display) using a small number of light emitting elements.

[Disclosure of the invention] An embodiment of the invention will be described below with reference to the drawings. In FIG. 2, a rod-shaped display bar 2 has a large number of light emitting elements 1 such as light emitting diodes arranged in a straight line. The drive unit 3 moves the display bar 2 by periodic motion in a direction intersecting the arrangement direction of the light emitting elements 1, that is, in a direction perpendicular to the arrangement direction. Further, this driving section 3 electrically controls the driving of each light emitting element 1 of the display bar 2. That is, the light emitting elements 1 are synchronized with the display bar 2, and when the display bar 2 reaches an appropriate position during movement, the necessary light emitting elements 1 for display are controlled to blink. Since the display pattern is created using a dot matrix, patterns can be created freely. When the light emitting elements 1 of the display bar 2 are turned on, the human eye sees this as a continuous plane display (pattern) due to an afterimage effect.

FIG. 1 shows an embodiment in which a plurality of display device bodies each consisting of the display bar 2 and the driving section 3 are provided. That is, each display device main body is disposed in the base 4 in the depth direction, and the display bar 2 protrudes upward through a guide groove 5 formed laterally in the upper surface of the base 4. In other words, the display bar 2 reciprocates in a direction perpendicular to the arrangement direction of the light emitting elements 1, and a plurality of display bars 2 move in a direction perpendicular (depth direction) to the display surface of the front display bar 2.
(display device main body). Therefore, each display bar 2 can provide a plurality of flat displays. Each flat display will be arranged in the depth direction. Each display bar 2 is displayed while moving, using the afterimage effect of the human eye, so that the human eye can see the pattern on the display and also see the scenery on the other side at the same time. Become. Therefore, the human eye can simultaneously view a plurality of flat displays arranged in the depth direction. In other words, three-dimensional display can be performed as a whole.

FIG. 3 shows a three-dimensional display device having the same concept as FIG. 2, but takes into consideration the arrangement of a plurality of display bars 2. In other words, move display bar 2 to the fourth
If they are arranged in a straight line as shown in the figure, the second and subsequent display bars 2 will be hidden behind the first display bar 2 and will become invisible. Therefore, only the two-dimensional display in the front can be seen. To prevent this, in the embodiment shown in FIG. 3, the display bars 2 are arranged so that no more than three display bars 2 are lined up in a straight line. This prevents three or more display bars 2 from always being in a straight line even during operation, and enables three-dimensional display using a plurality of flat displays.

However, when the device shown in Fig. 3 is viewed from a certain direction, as shown in Fig. 5, when the display bars 2a and 2b are moving in the same direction and at the same speed, the display bar 2b is always behind the display bar 2a. Yes, display bar 2
The flat display shown in FIG. 1B becomes invisible due to the display bar 2a. Moreover, as shown in FIG. 6, when viewed from a certain direction when the periods are the same, two display bars 2a and 2 move in opposite directions.
b will always cross at the same point. Therefore, the display bar 2b at this point is the display bar 2a.
It becomes invisible due to Therefore, in order to prevent these problems, in each of the above embodiments, the periods in which the display bar 2 moves are made different.

FIG. 7 shows an embodiment in which the display bars 2 are arranged in the width direction and each display bar 2 is moved in the front and back direction. In this case, each display bar 2 performs a display in the depth direction, and a plurality of display bars 2 in the width direction performs a display in the width direction, resulting in a three-dimensional display as a whole.

[Effect of idea]

As described above, the present invention involves arranging a large number of bar-shaped display bars in which a large number of light emitting elements are arranged in a straight line on a plane in a direction orthogonal to the arrangement direction of the light emitting elements, and moving each display bar individually on the plane. At the same time, a driving section is formed that controls the light emitting elements to blink in synchronization with the movement of the display bar. Therefore, the driving section can display a large number of display bars while synchronizing with each light emitting element of the display bar. By moving on a plane perpendicular to the bar, various displays can be displayed by blinking the light emitting elements in synchronization with the movement of the display bar and the afterimage phenomenon of humans, allowing display patterns to be recognized and the direction in which the light emitting elements are arranged. Visual information in the background can also be confirmed through the multiple display bars in the direction orthogonal to the display bar.Furthermore, by controlling the light emitting elements to blink in synchronization with the movement of the display bars, the two-dimensional movement of the multiple display bars on a plane can be controlled. This has the effect that a three-dimensional display (stereoscopic display) can be performed as a whole. In addition, even if the display bar and the light emitting elements of the display bar are arranged closely when drawing images or characters using light emitting elements at a high density, the present invention moves each display bar on a plane. Since this is a phenomenon that utilizes afterimages, it is not the case that the light emitting elements at the rear are not visible, but images or characters produced by the light emitting elements at the rear can also be seen, resulting in the effect that higher density is possible.

[Brief explanation of drawings]

FIG. 1 is a perspective view of one embodiment of the present invention, FIG. 2 is a view showing the display device main body of the same, FIGS. 3 a and b are a plan view and front view of another embodiment of the same, and FIG. 5 and 6 are explanatory views of the same as the above, and FIG. 7 is a perspective view of still another embodiment of the same. 1 is a light emitting element, 2 is a display bar, and 3 is a drive unit.

Claims (1)

[Scope of utility model registration request] A large number of bar-shaped display bars in which a large number of light emitting elements are arranged in a straight line are arranged on a plane in a direction orthogonal to the arrangement direction of the light emitting elements, each display bar is moved on the plane, and the display bar is moved. 1. A stereoscopic display device comprising: a drive unit that controls blinking of a light emitting element in synchronization with the 3D display device.