CA2509335A1 - Display device - Google Patents

Abstract

A modular display device using triangular cross section columns side-by-side on a flat, concave, convex surface, in a vertical, horizontal orientation, which provides three different images. Each said column successively is rotated 120dgr and locked in that position via a continuous length loop roller chain and sprockets so that each face is cyclically brought into display position. For multiple sides viewing, said display can be set back-to-back, interlocked, in a triangle, rectangle arrangement where a single gearbox motor running non-stop to realign and pause all said columns in any of the said arrangements. Outdoor, indoor use with safety features to prevent public hazard and incorporating special effects on displayed image.

Description

DESCRIPTION of DISPLAY DEVICE
The object of the invention is a display device included, according to IPC, in class G09F11 indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position: The display elements are secured to the moving members carrying a part of the sign.
One well known (since 1911) form of a display device of this class comprises a series of columns of triangular cross section mounted side-by-side, each being rotated about its longitudinal axis and arranged to move through angular steps of 120dgr, so that each face is cyclically brought into a display surface position in which it is aligned with the corresponding faces of the other triangular columns, which are all then halted in such position for a short interval, during which a message or advertisement covering the whole display surface is presented for observation.
This type of billboard device is widespread and is designed/manufactured mainly for outdoor conditions advertising at a distance of 10-30m from observer and that is due to public hazard concern that a user's or passer-by's fingers becoming trapped in the gaps between adjacent columns while changing image. The driving mechanism and the size of equilateral triangle cross-section columns are close related. The first such billboards were using high HP motor, strong indexing mechanism, heavy bevel gear or chain transmission driving only 6-8 large said columns covering an area equal to 30-40 columns currently since driving, indexing and locking are moved to each said column. It is the small locking area in the axes of rotation that limits the size of cross-section column and the need for lighter and a large number of said columns. This type of display device is open to objection that can be only used on flat surfaces making it difficult to adapt for concave/convex display area. A
drawback is that cannot be combined in two, three, four display surfaces, such as arranged back-to-back or interlocked, (front and back viewing) or triangle/rectangle arrangements (all directions viewing) in a display with a single drive unit. Also a drawback is that has no special effects associated with the image being displayed like color light and prerecorded sound changing, water dripping on the exposed surface, motion sensor etc.
It is an object of the invention to enable an improved form of display device of this general class, based on equilateral triangle cross section columns, to be made, which is constructed so as:

1. to be displayed outdoor/indoor closer to public view at mall/store/street level advertising, with safety features to prevent public hazard.
2. to have an eye-catching motion prior to realigning the said columns for the next message or advertisement in a wave like motion.

3. to be exposed on flatlconcave/convex surface, a double side viewing, front and back as arranged back-to-back, interlocked or parallel, or triangle/rectangle arrangement for all directions viewing.

4. to use a single, non stop motion drive to realign said columns for a new display surface in any of said arrangement with much less power by turning said columns successively. The drive gearbox can have a mini electrical motor, water motor, air motor.

5. to have the size of said columns increase, with a larger locking area, which means fewer columns and turning mechanisms, resulting in lower final price.

6. to have special effects associated with the image being displayed like color light and prerecorded sound changing, water dripping on the exposed surface, motion sensor etc.
Display devices with three different display surfaces, using triangular cross section columns, are known in the prior art. Such a display device may be found in the US
Patent 6,128,841 to Werner (2000) wherein said columns are each one indexed and locked through cams system.
A driven cam with three equally spaced engagement slots and locking flat portion between each slot is attached to each member's end. A driver cam assembly including a knob arm configured to engage one of the engagement slots and a locking disk like portion in contact with locking flat portion in a dwell position and a cutout area to allow indexing rotation.
The display device has a complex drive system, difficult to adjust; the rotation through 120dgr is not at a constant velocity; the drive knob has a point contact with engagement slot;
locking in dwell position is a small segment of a circle area.
A similar display device may be found in the Patent US 5860325 to Havens (1999) wherein the driving indexing system is column-to-column type, with a driven bevel gear attached to column's end and a drive partial bevel gear having 1/3'd of teeth, periodically engaging. The locking mechanism has a cam mounted upon drive gear engages and operates a spring loaded pin which, in normal position locks the driven gear and is released by the cam prior to rotation.

Both such display devices are open to the objection that the mechanical solution is quite complex making them expensive and difficult to warrant sufficient reliability by reason of involving 2-3 interlocking movements in the operation cycle. It is also open to the objection that the system solution of changing the display surface it is limited to a flat surface only and is difficult to adapt for a concave/convex area.
According to the invention is provided a modular display device to present three different display surfaces arranged as seen in flg-1 and fig-4 on flat area, fig-2 and fig-9 on convex area, fig-3 and fig-11 concave area, comprising a series of columns of equilateral cross section each mounted to a driven assembly having a magnetic clutch at both ends through which the indexing with 120dgr occurs. The driving assembly is a roller chain type in a specific construction to accommodate indexing/locking and driving of said columns one-by-one in a constant velocity motion, in any of said arrangements. It is a single, non-stop motion drive to realign and pause said columns, using an insignificant amount of torque power which makes it suitable for using mini electric motor, water motor or air motor.
It is a further object of the present invention to provide a display device having means to present three different display surfaces double side viewing, front and back, arranged as seen in fig-13 on flat area (interlocked), fig-15 on convex area, fig-17 concave area, comprising a series of columns of equilateral cross section, each mounted to a driven assembly having a magnetic clutch at both end through which the indexing with 120dgr occurs. The driving assembly is a roller chain type in a specific construction to accommodate indexing/locking and driving of said columns one-by-one in a constant velocity motion, in any of said arrangements. It is a single, non-stop motion drive to realign and pause said columns, using an insignificant amount of torque power which makes it suitable for using mini electric motor, water motor or air motor.
It is also an object of the invention to provide a mechanical solution for a display device having means for displaying three different display surfaces all directions viewing, arranged triangularly as seen in fig-19 on flat area, fig-23 on convex area, fig-21 concave area, comprising a series of columns of equilateral cross section, each mounted to a driven assembly having a magnetic clutch at both end through which the indexing with 120dgr occurs. The driving assembly is a roller chain type in a specific construction to accommodate indexing/locking and driving of said columns one-by-one in a constant velocity motion, in i ,.

any of said arrangements. It is a single, non-stop motion drive to realign and pause said columns, using an insignificant amount of torque power which makes it suitable for using mini electric motor, water motor or air motor.
The drawings which form a part of this specification are:
Fig-1 is an ISO view of a flat display according to an embodiment of the invention, Fig-2 is an ISO view of a convex display according to an embodiment of the invention.
Fig-3 is an ISO view of a concave display according to an embodiment of the invention.
Fig-4 is an exploded view with detail views for driving mechanism and said column's ends.
Fig-5 is a top view of fig-1 and fig-4 with top plates and gearbox-motor removed for clarity.
Fig-6 and fig-7 are meant for detailed explanation of driving/indexing/locking mechanisms.
Fig-8a-8b-8c shows the driven assembly in two options and a part of magnetic clutch.
Fig-9 is an exploded view with detail views for driving mechanism and said column's ends.
Fig-10 is a top view of fig-2 and fig-9 with top plates and gearbox-motor removed for clarity.
Fig-11 is an exploded view with detail views for driving mechanism and said column's ends.
Fig-12 is a top view of fig-3 and fig-11 with top plates and gearbox-motor removed.
Fig-13 is a flat display, double sided according to an embodiment of the invention, Fig-14 is a top view of fig-13 with top plates and gearbox-motor removed for clarity Fig-15 is a convex display, double sided according to an embodiment of the invention, Fig-16 is a top view of fig-15 with top plates and gearbox-motor removed for clarity Fig-17 is a concave display, double sided according to an embodiment of the invention, Fig-18 is a top view of fig-17 with top plates and gearbox-motor removed for clarity Fig-19 is a flat display; three side viewing according to an embodiment of the invention, Fig-20 is a top view of fig-19 with top plates and gearbox-motor removed for clarity Fig-21 is a concave display; three side viewing according to an embodiment of the invention, Fig-22 is a top view of fig-21 with top plates and gearbox-motor removed for clarity Fig-23 is a convex display; three side viewing according to an embodiment of the invention, Fig-24 is a top view of fig-23 with top plates and gearbox-motor removed for clarity The invention will now be described in a more detailed account with reference to the attached drawings.
As previously indicated in the embodiment according to the state of the art as shown in Fig-1, 2, 3, 4, 9, 11, 13, 15, 17, 19, 21, 23 a number of equilateral triangle cross section columns i , define a display surface for showing three messages display, said columns being placed adjacent to each other and aligned in such a way that all faces toward the display device, lie on the same plane forming a display surface in front side of the display device (Fig-1, 2, 3, 4, 9,11 ) or two display surfaces in the front and back side of the display device (Fig-13,15,17) or three display surfaces in radial three direction viewing of the display device (Fig-19,21,23) The said columns, item ( 1 to 6), ( 1 a to 6a), ( 1b to 6b) are identically constructed (PVC foam board or Styrene or bent sheet metal or aluminum extrusion) having at both ends a plastic cap disk 8 (Fig-4) in which three rear earth magnets 9 are equidistantly press fit, in center of said disk 8 a loose fit hole or a bushing is mounted sliding to a center shaft 7.
The driving mechanism assembly (Fig-4, 5, 6, 7) comprises of a standard plastic or metal drive roller chain 15, connected with three links of same chain, as a double strands chain using corresponding connecting links and clips, forming a four-roller chain 16. The said chains 15 and 16 are in a close loop wrapped 180dgr on both idler sprocket 18 and drive sprocket 17, attached to a gearbox motor 23. The said sprockets 17 and 18 are attached to a hub having a height according to a double strand chain total width or can be replaced by two strand standard sprockets. The close loop drive chain 15 and 16(on the top portion) runs non-stop in a horizontal plane supported by the top plastic plate 10 and guided at inside loop by a plastic guide bar 19, towards triangular columns, and a plastic guide bar 20 on the return portion.
The driven mechanism assembly (Fig-8a) comprises of a plastic shaft 25, which centers and locates in precise relationship between the teeth of top sprocket 21 and the straight edge of equal-triangular locking plate 22 and again the straight edge of triangular bottom plate 24.
The washer 26, keeps sprocket 21 and locking plate 22 at a distance equal to the transverse pitch of double strand chain and said plate 22 thickness is less then the width between roller link plates. Three rear earth magnets 9 are equidistantly press fit to said plate 24, matching magnets location on disk 8. Fig-8b shows driven assembly as a single injection molding part and magnets 9 are in mold inserted. The top plate 10 has bearing holes (to receive driven assembly) at a distance equal to the said columns (1 to 6) pitch arrangement in display plus a minimum clearance between them. The guide bar 19 has slotted openings centered horizontally to the bearing holes in said plate 10 and vertically to the locking plate 22, and is bolted to plate 10 at a distance to keep locking plate 22 straight edge in loose contact with rollers of drive chainl5. The center shaft 7 is meant to keep said columns (1 to 6) vertically a (horizontally) in parallel position and a said triangular plate 24, with magnets 9 in up position, is mounted at the bottom shaft, which is guided in a hole in the lower plate 12, concentric to bearing hole in top plate 10. The side uprights 11 keep top plate 10 and lower plate 12 in parallel relation and a top cover 14 protects moving parts on the top plate, and a bottom cover 13 on the lower plate.
Same engineering relations to define driving/indexing/locking are shown in Fig-6, 7,8c.
Drive/driven mechanism it is not quite a standard chain-sprocket arrangement but more like a rack-pinion, wherein the four-roller chain 16 is like a piece of rack with four teeth and the sprocket 21 is like a fixed pinion. The drive chain 15 is a carrier for said chain 16 and a guide-locking means for the triangular locking plate 22 witch is in slide contact with said chain 15 rollers when a column ( 1 to 6) is in pause position and allow said plate 22 to be rotated through the gap under said chain 16, while said column rotates with 120dgr. Fig-6 shows the rotation with 120dgr transition process in dotted line and Fig-7 shows the end of it.
For an indexing with 120dgr the number of teeth of sprocket 21, call it Z=(360/3)*(X+1), where X is the number of rollers said chain 16 has, (for an indexing with 90dgr, Z=(360/4)*(X+1)). It is a tradeoff between X, size of locking area desired, chain and sprocket size, to have Z determined. Fig-8c shows a top view of said sprocket 21 with Z=3*(4+1)=15 teeth and said locking plate 22, relationship so that said chain 16, coming tangential to the pitch diameter of said sprocket 21, the edge of said locking plate 22 is tangent to said chain's rollers 16 and said sprocket 21 can engage tangential with said roller chain 16.
In Fig-4 is the three different display surfaces on a flat area, front viewing direction, wherein the top cover 14 and gearbox motor 23 are in exploded position to show driving mechanism located at the back side of display. The said columns ( 1 to 6) are rotated with 120dgr successively (column 1 first, column 6 last) in a wave like motion and paused in cycle.
The said wave motion can be considered as a first line of public safety since one column at a time turns and the gaps with adjacent column are smaller if they would turn.
The second line of safety is that the torque power is very low, enough to turn one said column only plus system frictions which can be kept low through lubrication, materials etc, The third line of safety is electronically controlling the AC/DC amps for the motor 23 to a minimum level.
The fourth line of safety is a permanent magnetic clutch (as a torque limitation comprising of i , pairs of magnets 9 in contact in series, one in said cap disk 8 and one in mating location in said triangular bottom plate 24), through which the rotation is transferred from each said driven mechanism to each said column.
In Fig-9 is the three different display surfaces on a convex area, front viewing direction, wherein the top cover 31 and gearbox motor 23 are in exploded position to show driving mechanism located at the back side of display. The top plate 28, lower plate 29 are similar functionally to said top plate 10, lower plate 12, except the holes are arranged on top of an arc circle. The guide bar 32 and 33 are similar functionally to said guide bar 19 and 20, except are bent mounted on top of arc circle concentric to said top plate 28.
The side uprights 27, bottom cover 30 and top cover 31 are similar functionally to said side uprights 11, bottom cover 13, top cover 14. The said columns ( 1 to 6) are rotated with 120dgr successively (column 1 first, column 6 last) in a wave like motion and paused in cycle In Fig-11 is the three different display surfaces on a concave area, front viewing direction, wherein the top cover 37 and gearbox motor 23 are in exploded position to show driving mechanism located at the front side of display. The top plate 34, lower plate 35 are similar functionally to said top plate 10, lower plate 12, except the holes are arranged on top of an arc circle. The guide bar 39 and 40 are similar functionally to said guide bar 19 and 20, except that they are bent mounted on top of arc circle concentric to said top plate 34. The side uprights 38, bottom cover 36 and top cover 37 are similar functionally to said side uprights 11, bottom cover 13, top cover 14. The said columns (1 to 6) are rotated with 120dgr successively (column 1 first, column 6 last) in a wave like motion and paused in cycle In Fig-13 is the three different display surfaces double side viewing direction, front and back, on a flat area, with said columns ( 1 to 6) interlocked with columns ( 1 a to 6a) wherein the top cover 44 and gearbox motor 23 are in exploded position to show driving mechanism located at the center of display. The top plate 41 and lower plate 42 are similar functionally to said top plate 10; lower plates 12, except that the holes are arranged in parallel interlocked. The side uprights 45, bottom cover 43 and top cover 44 are similar functionally to said side uprights 11, bottom cover 13, top cover 14. The said columns (1 to 6) are rotated with 120dgr successively in a wave like motion and paused while said columns ( 1 a to 6a) are rotated with 120dgr successively in cycle.

i. .

In Fig-15 is the three different display surfaces double side viewing direction, on a convex area, with said columns ( 1 to 6) at front and columns ( 1 a to 6a) at rear, wherein the top cover 49 and gearbox motor 23 are in exploded position to show driving mechanism located at the center of display. The top plate 46 and lower plate 47 are similar functionally to said top plate 10; lower plates 12, except that the holes are arranged on top of two arc circles. The guide bar 32 is similar functionally to said guide bar 19, except is bent mounted on top of arc circle concentric to said top plate 46. The side uprights 50, bottom cover 48 and top cover 49 are similar functionally to said side uprights 11, bottom cover 13, top cover 14. The said columns ( 1 to 6) are rotated with 120dgr successively in a wave like motion and paused while said columns ( 1 a to 6a) are rotated with 120dgr successively in cycle.
In Fig-17 is the three different display surfaces double side viewing direction, on a concave area, with said columns ( 1 to 6) at front and columns ( 1 a to 6a) at rear, wherein the top cover 54 and gearbox motor 23 are in exploded position to show driving mechanism located at the center of display. The top plate 51 and lower plate 52 are similar functionally to said top plate 10; lower plates 12, except the holes are arranged on top of two arc circles. The guide bar 39 is similar functionally to said guide bar 19, except is bent mounted on top of arc circle concentric to said top plate 51. The side uprights 55, bottom cover 52 and top cover 54 are similar functionally to said side uprights 11, bottom cover 13, top cover 14.
The said columns (1 to 6) are rotated with 120dgr successively in a wave like motion and paused while said columns ( 1 a to 6a) are rotated with 120dgr successively in cycle.
In Fig-19 is the three different display surfaces, on flat areas, with said columns (1 to 6), columns ( 1 a to 6a), columns ( 1 b to 6b), three side viewing direction (A-B-C), wherein the top cover 59 and gearbox motor 23 are in exploded position to show driving mechanism located at the center of display. The top plate 56 and lower plate 57 are similar functionally to said top plate 10; lower plates 12, except the holes are arranged triangular. The side uprights 60, bottom cover 58 and top cover 59 are similar functionally to said side uprights 11, bottom cover 13, top cover 14. The said columns (1 to 6),(1a to 6a), (1b to 6b) are rotated with 120dgr successively in a wave like motion and paused in cycle.
In Fig-21 is the three different display surfaces, on concave areas, with said columns (1 to 6), columns (la to 6a), columns (1b to 6b), three side viewing direction (A-B-C), wherein the top cover 64 and gearbox motor 23 are in exploded position to show driving mechanism located at the center of display. The top plate 61 and lower plate 62 are similar functionally to said top plate 10; lower plates 12, except the holes are arranged on top of three arc circles.
The side uprights 65, bottom cover 63 and top cover 64 are similar functionally to said side uprights 11, bottom cover 13, top cover 14. The said columns ( 1 to 6),( 1 a to 6a), ( 1 b to 6b) are rotated with 120dgr successively in a wave like motion and paused in cycle.
In Fig-23 is the three different display surfaces, on convex areas, with said columns ( 1 to 6), columns ( 1 a to 6a), columns ( 1b to 6b), three side viewing direction (A-B-C), wherein the top cover 69 and gearbox motor 23 are in exploded position to show driving mechanism located at the center of display. The top plate 66 and lower plate 67 are similar functionally to said top plate 10; lower plates 12, except the holes are arranged on top of three arc circles.
The side uprights 70, bottom cover 68 and top cover 69 are similar functionally to said side uprights 11, bottom cover 13, top cover 14. The said columns ( 1 to 6), ( 1 a to 6a), ( 1 b to 6b) are rotated with 120dgr successively in a wave like motion and paused in cycle.
In any the above described display devices, special effects can be associated with the wave motion changing display surface. A color light strip lamp changing color with each rotation illuminates each said column. The effect is a wave of motion and light. A
prerecorded sound plays cyclically synchronized with said column ( 1 ) rotation and a motion sensor will add the sound effect. For a more visual attraction, a water pump and a collecting tank are placed in the said bottom cover 13. The water is pumped up through said side uprights 11 and is dripping onto the exposed display surface.
A water gearbox motor can drive the rotation of said columns and the entire display device is submerged in a fish tank like, where beside light and sound there can be air bubble, plants, fish etc, or pumping water through the top of said center shaft 7 and on the exposed image side, water will appear to move in upwards direction.

Claims (16)

1. A front view display images on a flat surface device, comprises a series of triangular columns side-by-side in a row, each said column having means for rotation about longitudinal axis through angular steps of 120dgr in a cycle where one said column at a time is rotated until the corresponding faces of all said columns consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in front view and said cycle repeats.

2. A front view display images on a convex surface device, comprises a series of triangular columns side-by-side and tangential to a convex surface, each said column having means for rotation about longitudinal axis through angular steps of 120dgr, in a cycle where one said column at a time is rotated until the corresponding faces of all said columns consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in front view and said cycle repeats.

3. A front view display images on a concave surface device, comprises a series of triangular columns side-by-side and tangential to a concave surface, each said column having means for rotation about longitudinal axis through angular steps of 120dgr in a cycle where one column at a time is rotated until the corresponding faces of said columns consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in front view and said cycle repeats.

4. A front and back view display images on flat surfaces device, comprises a series of triangular columns side-by-side in a front row and interlocked with a back row, each said column having means for rotation about longitudinal axis through angular steps of 120dgr in a cycle where one column at a time is rotated until the corresponding faces of said columns in front row consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in front view and said cycle repeats with said columns in back row and a display image is presented in back view and said cycle repeats.

5. A front and back view display images on convex surfaces device, comprises a series of triangular columns side-by-side and tangential to two opposite convex surfaces, each said column having means for rotation about longitudinal axis through angular steps of 120dgr in a cycle where one column at a time is rotated until the corresponding faces of said columns in front convex surface consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in front view and said cycle repeats with said columns in back convex surface and a display image is presented in back view and said cycle repeats.

6. A front and back view display images on concave surfaces device, comprises a series of triangular columns side-by-side and tangential to two opposite concave surfaces, each said column having means for rotation about longitudinal axis through angular steps of 120dgr in a cycle where one column at a time is rotated until the corresponding faces of said columns in front concave surface consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in front view and said cycle repeats with said columns in back concave surface and a display image is presented in back view and said cycle repeats.

7. A radial three side (A-B-C) view display images on flat surfaces device, comprises a series of triangular columns side-by-side in a triangular arrangement (A-B-C), each said column having means for rotation about longitudinal axis through angular steps of 120dgr in a cycle where one column at a time is rotated until the corresponding faces of said columns in side A consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in side A view and said cycle repeats with said columns in side B and a display image is presented in side B
view and said cycle repeats with said columns in side C and a display image is presented in side C view and said cycle repeats

8. A radial three side (A-B-C) view display images on convex surfaces device, comprises a series of triangular columns side-by-side in a triangular convex side arrangement (A-B-C), each said column having means for rotation about longitudinal axis through angular steps of 120dgr in a cycle where one column at a time is rotated until the corresponding faces of said columns in convex side A consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in side A view and said cycle repeats with said columns in convex side B and a display image is presented in side B view and said cycle repeats with said columns in convex side C and a display image is presented in side C view and said cycle repeats

9. A radial three side (A-B-C) view display images on concave surfaces device, comprises a series of triangular columns side-by-side in a triangular concave side arrangement (A-B-C), each said column having means for rotation about longitudinal axis through angular steps of 120dgr in a cycle where one column at a time is rotated until the corresponding faces of said columns in concave side A consecutively are aligned and then halted in this position for a period of time, in which a display image is presented in side A view and said cycle repeats with said columns in concave side B and a display image is presented in side B view and said cycle repeats with said columns in concave side C and a display image is presented in side C view and said cycle repeats

10. A display device of claims 1,2,3,4,5,6,7,8,9, wherein "said column" is consisting of an equilateral triangle cross section elongated prism having at one end an equal-triangular locking plate and in top a sprocket, all center mounted in precise relationship between the teeth of said sprocket, the straight edge of said locking plate and parallel with an edge of said prism, so that a roller chain, same size as said sprocket, coming tangential to the pitch diameter of said sprocket, the edge of said locking plate is tangent to said roller chain's rollers and said sprocket can engage tangentially with said roller chain.

11. A display device of claims 1,2,3,4,5,6,7,8,9, wherein "a cycle where one column at a time is rotated" consisting of a drive long strand roller chain having at ends connecting link pin extended in one side, between which a short roller chain is attached, defining a continuous length loop chain with a gap under said attached chain and said loop is wrapped around all said columns, in such that said drive chain's rollers are in slide contact with all said locking plates (of claim 10) and said attached chain can engage only one of said sprockets (of claim 10), so that each said column is not allowed to rotate when his said locking plate is in sliding contact with said drive chain rollers and successively each said column being rotated through angular steps of 120dgr when said attached chain engages his said sprocket and his said locking plate corner is free to rotate through the said gap under said attached chain.

12. A display device of claims 10,11, with a driving mechanism consisting of a drive continuous length loop chain (of claim 11), a straight or curved guide bar mounted towards said columns with slotted openings which keeps said loop chain in position while engaging tangential with said sprocket of said columns (of claim 10) and also keeps said loop chain in position while said locking plates of said columns, in locked position, are in sliding contact with said loop chain's rollers and allow said locking plate corner to pass through said opening while said column is rotating, and a gearbox motor with a drive sprocket and an idler sprocket in between said columns side-by-side.

13. A display device of claims 10, with a permanent magnetic clutch, as a torque limitation, consisting of pairs of magnets in contact in series, through which the rotation with 120dgr is transferred to each said column, one said magnet is mounted in a cap disk at the end of said prism (of claim 10) and one in mating position in said triangular locking plate.

14. A display device of claims 1,2,3,4,5,6,7,8,9, with dynamic illumination system consisting of three colors light strip lamps for each said column, changing color or intensity with each said column rotation, illuminating each said column to the exposed image, so that the effect is a wave of motion and light.

15. A display device of claims 1,2,3,4,5,6,7,8,9,14, with water dripping system onto the exposed image consisting of a water pump and a collecting tank placed at the bottom of display frame and water is pumped up through side uprights frame dripping onto each said column exposed face while in pause position.

16. A display device of claims 1,2,3,4,5,6,7,8,9,10,11, which is submerged in a water tank consisting of a fitting water tank with clear walls to the exposed display image and a water pump and water gearbox motor rotates said columns and also is pumping exhaust water through the top of center shaft of said columns so that on the exposed image side, water will appear to move in upwards direction.