CN1324475A

CN1324475A - Display panel

Info

Publication number: CN1324475A
Application number: CN99812421A
Authority: CN
Inventors: 布伦丹·D·赖利
Original assignee: SIME CORP Pty Ltd
Current assignee: SIME CORP Pty Ltd
Priority date: 1998-10-21
Filing date: 1999-10-21
Publication date: 2001-11-28
Also published as: EP1125267A4; EP1125267A1; JP2002528750A; WO2000023974A1; AUPP665198A0

Abstract

A display panel comprising a housing (11) having a front face having a display face (14); the housing rotatably supporting a pair of rollers (24) and (25) located in substantially parallel relationship to opposed sides of the display face; the rollers capable of supporting between themselves a screen having a multiple of display panels of substantially corresponding configuration to the display face; a drive means (26) adapted to cause rotation of one of the rollers to cause the screen to move from the other of the rollers and over the one roller; a control means to cause the activation of the drive means of the one roller to cause movement of the screen across the display face such that each display panel is located across the display face and is held at that position for a period of time; the housing further supporting an illumination means located rearwardly of the display face and the screen to be supported by the rollers; the rollers, drive means and illumination means being supported on a carriage supported from the housing; the carriage being supported from the housing to be moveable between a first position located within the housing and rearward of the display face and a second position at which the carriage is located outwardly from the housing, at which second position the rollers, screen and illumination means are accessible.

Description

Display board

The present invention relates to a kind of display board with variable demonstration, this display board can be used for display ads, important information etc., and a plurality of advertisement, information etc. can show certain hour in this display board.

The invention particularly relates to and a kind ofly can be used in outdoor and the display board of a pair of display surface is arranged.

Prior art of the present invention comprises: Australian patent specification 17230/95,69644/94,68371/94,39735/93,66319/90,89190/91, US Patent specification 5557878,5465515,5488791,5412892,5410830,5138781,5003717,4965947,4773176,4707938,4110925,3616554,3510973, Canadian patent specification 2118890, international patent specification WO96/12266 and European patent specification 603075.These prior art documents have all been introduced display structure, wherein, make the flexible display screen with demonstration thing move through a display screen, so that can see discrete demonstration thing on display surface.But, the problem of these display device is to need to change demonstration at an easy rate at any time.

The purpose of this invention is to provide a kind of variable demonstration, wherein, can change discrete demonstration at an easy rate.

Therefore, the present invention relates to a kind of display board, comprise a housing, this housing has a front surface with display surface; The rotatably mounted a pair of roller of described housing, this is arranged in the opposite side of display surface substantially parallel to roller; Described roller can be at screen with a plurality of display boards of supporting between they self, and these display boards each have the basic shape identical with display surface; A drive unit is used for making a rotation of this roller, and this screen is moved on first roller from another roller; One control device starts the drive unit of this first roller, thereby makes screen cross display surface and move, and like this, each display board is in and keeps certain hour across the position of display surface and in this position; This housing also supports a lighting device, and this lighting device is positioned at display surface and by the screen back of roller bearing; Described roller, drive unit and lighting device are bearing on the support that is supported by housing; This bracket supports is on housing, thereby can move in housing and between the primary importance behind the display surface and the second place, in this second place, this support is positioned at this housing outside, and in this second place, roller, screen and lighting device can be approaching.

According to preferred feature of the present invention, this housing has second display surface, and this support is equipped with a pair of second roller, and this is arranged in the opposite side of this second display surface substantially parallel to second roller; Described second roller can be at second screen with a plurality of display boards of supporting between they self, and these display boards have the basic shape identical with second display surface; One second drive unit can make a rotation in this second roller, and makes on this screen moves to this first second roller from another second roller; Described control device is controlled second drive unit; This second screen is between the lighting device and second screen.According to an embodiment, display surface is substantially parallel, and screen is positioned at the opposite side of lighting device.According to another embodiment, first and second screens comprise a public screen, and this common screen will both be passed through first display surface, also by second display surface.

According to a preferred feature of the present invention, described control device is also controlled the work of lighting device, like this, starts so that during screen motion, this lighting device cuts out at drive unit.According to another characteristic of the invention, when lighting device was not opened, display surface can limit sight line transmission display face.According to an embodiment, it is transparent that display surface is processed into the light that sends for lighting device, but when lighting device was not opened, the visibility of display board was restricted at this display surface place.

According to a preferred feature of the present invention, screen twists on one or two described roller, and the length of this screen is many times of spacing between the roller, therefore, when a roller rotates owing to drive unit, screen will wind off from another roller, move through display surface and twist on this first roller.According to another preferred feature of the present invention, can optionally drive each roller, thereby screen is twisted on the roller that is driven by this drive unit.

According to a preferred feature of the present invention, control device can make drive unit and another roller throw off and start the drive unit of a roller, thereby makes screen motion.According to another preferred feature of the present invention, another roller of a detent and this links to each other, and described detent is started by control device, thereby controls the rotation of this another roller when making this first roller rotation.

According to a preferred feature of the present invention, each roller links to each other with an elongated support member, this elongated support member and each roller extend jointly and an area supported are arranged, described supporting member is resiliently biased, like this, described area supported matches with the part of the screen that outside surface and this roller supported of roller.

According to a preferred feature of the present invention, this support is supported in the housing slidably, thereby can move being parallel on the direction of display surface, one side of housing can be opened, thereby make this support be moved out to the second place from this side of housing, in this second place, most of at least support is positioned at the outside of housing substantially, and is bearing on the housing.According to another preferred feature of the present invention, this support is bearing on the housing by a telescopic guideway.According to an embodiment, this sidewall comprises a lateral sidewall of housing.According to another embodiment, this sidewall comprises the roof of housing.According to another embodiment, this sidewall comprises the diapire of housing.

According to a preferred feature of the present invention, the display surface hinged support is on housing, thereby be moveable to open position, in this position, this display surface stretches out from housing, described support is bearing on the housing by web member, and this web member can make support shift out housing when display surface is shown in an open position and support this support in this second place.According to another preferred feature of the present invention, this web member comprises a pair of arm, and this arm is bearing in the housing opposite side at the one end pivoting, support away from the position pivot suspension of an end of this arm between this is to arm.According to another preferred feature of the present invention, this bracket supports is at the other end of described arm.According to another preferred feature of the present invention, this bracket supports on arm, thereby can be around the central shaft of this support and rotate.According to an embodiment, this arm respectively comprises an elongate articles, and this elongate articles is contained at the one end on the end of respective side of housing.According to another embodiment, this arm comprises a plurality of web members, and these web members are pivotally connected mutually, thereby hinged web member is provided.

According to a preferred feature of the present invention, this drive unit comprises the CD-ROM drive motor that is used for each roller, and wherein, each CD-ROM drive motor operatively is connected with corresponding roller by clutch coupling, described control device is controlled the startup of this CD-ROM drive motor and clutch coupling, thereby makes screen motion.

According to a preferred feature of the present invention, lighting device comprises the elongate fluorescent lamp pipe of arranging substantially in a plane, this fluorescent tube extends on the major part of display surface height at least, described fluorescent tube parallel array, outermost fluorescent tube is inwardly spaced apart from the hithermost edge of display surface, first reverberator stretches out from outermost fluorescent tube, and comprise a pair of reflecting plate, first edge of each reflecting plate is near corresponding outermost fluorescent tube, and each reflecting plate is dispersed from this.According to an embodiment, this arrangement comprises the parallel fluorescent tube of two row.According to another embodiment, this arrangement comprises the fluorescent tube of three parallel rows.According to the feature of each embodiment, every row comprises an elongated fluorescent tube.According to another preferred feature, this plate is the plane substantially.According to another preferred feature of the present invention, one second reverberator is extending between the parallel fluorescent tube and on the whole length of the parallel fluorescent tube of arranging substantially.According to a preferred embodiment, wherein said second reverberator is the plane substantially.According to an embodiment, this second reverberator comprises a reflection curtain.According to an optional embodiment, this second reverberator comprises the plate of a substantially rigid.According to the another feature of this embodiment, this plate pivot suspension is on support, so that can rotate around the axis that is basically parallel to fluorescent tube.

By following explanation to several specific embodiments, the present invention may be better understood.

Fig. 1 is the diagrammatic side view of the display board of first embodiment;

Fig. 2 is the end-view of seeing from a side end face of the display board of first embodiment;

Fig. 3 is the planimetric map of the support of first embodiment;

Fig. 4 is the side view of the support of first embodiment;

Fig. 5 is the cut-open view along the first embodiment support of the line 5-5 among Fig. 4;

Fig. 6 is the constructed profile of support member, and this support member links to each other with each roller;

Fig. 7 is the floor map of the support of second embodiment;

Fig. 8 is the floor map of the display board of the 3rd embodiment, first and second positions of expression support; And

Fig. 9 is the diagrammatic side view of the 4th embodiment.

First embodiment relates to a kind of display board, this display board can be used as the sidewall or the similar component of motorbus canopy, and it can also provide display surface in each main surface at it, suitable advertisement or information can be shown in this display surface, thus, these advertisements and displaying contents or information can change after after a while, thereby produce transformable demonstration.

This display board comprises the housing 11 of a sealing, and this housing 11 has front surface 12 and rear surface 13, with the relation supporting with substantially parallel interval of this front surface 12 and rear surface 13, and each has transparent display surface 14.Roof, diapire and sidewall are closed, so that determine an enclosure space in this housing.A sidewall 16 is sealed by dismountable plate, and this plate can be removed, so that can both enter the inside of this housing substantially on the whole height of this housing.Extension, one group of bottom 15 is arranged at the bottom of housing 11, can pack into and be fixed in the suitable carriage on ground as the ground support of this plate in this group extension 15.

This housing is equipped with a support 20, and this support 20 is supported in the housing by suitable scalable rail mechanism 21, and this scalable rail mechanism 21 is supported on the roof and diapire of housing.The supporting that provides by scalable rail mechanism makes support can move to second place (not shown) from primary importance as shown in Figure 1, at this primary importance place, support 20 is loaded in the housing and between the front and

rear surfaces

12,13 of display board fully, at this second place place, bracket supports and is positioned at the outside of housing and to a side of housing on housing.In order to make support move to the second place, the demountable panel on the side wall 16 is unloaded from primary importance.

Support comprises the framework of a basic rectangle, and this rectangular frame comprises upper frame member 22 and the bottom frame member 23 by suitable frame side member supporting.This upper frame member is bearing on the upper part of scalable rail mechanism, and this bottom frame member is assigned to support by the lower face of this scalable rail mechanism.Each relative with front surface 12 or rear surface 13 respectively rack surface has a pair of driven

roller

24 and 25, and this is positioned at the both sides of support to driven roller 24,25.

Roller

24 and 25 is parallel to each other, and respectively comprises a roller spare that is used to support screen.In order to support this roller, each side end of the framework on

frame unit

22 and 23 up and down all has rotatable suitable supporting latch, and like this, four pairs of latches are arranged on the framework with opposite relation.This rotatable latch can cooperate with the respective end of each roller, so that roller is rotatably supported between frame unit 22 and 23.Roller is to be installed in like this on the relative latch, that is, this roller can be thrown off between relative latch at an easy rate when needing.This can realize like this, that is, can the axial elasticity motion by making in this relative latch at least one, thus throw off with the end of roller.Last latch in every pair of relative latch links to each other with CD-ROM drive motor 26, and this CD-ROM drive motor 26 can cooperate with last bolt driving by suitable clutch coupling (not shown).

Frame unit 22 and every side of 23 all have guidance surface 27 up and down, and this guidance surface 27 is extending on the length at each frame unit between relative roller 24 and 25.This guidance surface 27 is determined by the flange on each frame unit, and the inside surface of close corresponding display surface.

Every pair of roller 24 links to each other with a screen with 25, and this screen twists on the roller.This can finish roller when support is pulled down.The width of this screen is greater than the interval between the relative edge of the guidance surface 27 on the frame unit up and down.This screen comprises a plurality of display boards, and the shape of each display board is all basic corresponding with the shape of display surface.During use, this screen can move between roller, thereby makes each display board can both face toward corresponding display surface.The steering tape (not shown) of another roller bearing certain-length.For the roller that screen is housed, it is arranged in internal stent by cooperating between a pair of relative latch, this screen extension is crossed the respective face of support, its free edge cooperates with one section steering tape by another roller bearing, so as to make this screen extension cross this support and be superimposed upon with frame unit 22 links to each other with 23 up and down guidance surface 27 on.This screen supports like this, that is, when this support is positioned at its primary importance and during at housing 11, screen is by roller and guidance surface supporting, like this, it will press close to the inside surface by the display surface 14 of corresponding front and

rear surfaces

12,13.

CD-ROM drive motor 26 is started by programmable control device, this programmable control device can start this CD-ROM drive motor, thereby make corresponding roller rotation, like this, screen is wrapped on this roller, and another CD-ROM drive motor 26 disconnects with another driven roller by clutch coupling, thereby makes this another roller rotation, and makes screen reel from this another roller.The feature of first embodiment is that damping force acts on this another roller 25, so that make screen pulled tight when last roller moves from this another roller.Can start the clutch coupling be connected between this another roller and the CD-ROM drive motor or realize this damping force by the short period by friction bearing or other appropriate device that supports each latch, when screen is wrapped on the roller by the respective drive motor, this friction bearing can make latch rotate freely, but applies frictional resistance to this latch at screen when this roller winds off.

In addition, in order it further to be pulled tightly during from another roller to the motion of last roller at screen, each roller (see figure 6) that links to each other with an elongated support member 30, this supporting member 30 and roller spare extend jointly, and around pivot 31 and on the framework of pivot suspension at support.This supporting member has an elongated area supported 32, and this area supported 32 is pressed on the screen surface that is loaded on the roller.Can see that the screen of this supporting member 30 between roller provides certain tightening force, and fold when preventing that screen from moving between roller.

In addition, in order to control the motion of screen between roller, between the subtend face of guidance surface 27 and corresponding display surface is so at interval, that is, make screen be supported by guidance surface in the mode of the inside surface of pressing close to display surface.

Support also supports lighting device, and this lighting device comprises one group of fluorescent light 40, and this group fluorescent light extends between upper frame member 22 and bottom frame member 23, and spaced apart along the central shaft of support, and like this, it also will illuminate the rear surface of back display surface 12 and 13.In addition, lighting device also comprises a pair of reverberator 41, and this reverberator 41 extends between the respective side edge of outermost fluorescent light 40 of each side of support and support, and disperses from the central plane of support, so that produce certain reflection, reflex to the outward flange of display surface with shining light on it.In addition, the space between each fluorescent light can be by reflection curtain and/or 42 sealings of translucent curtain.Curtain 42 can prevent that sight line from seeing opposite side from a side of support, and prevents that the displaying contents of a display surface is subjected to the influence of the displaying contents of another display surface.

In addition, each display surface on front-

back

12 and 13 is caught look, like this, when lighting device is not opened, in display board, see unsighted or be suppressed at least, but when lighting device is opened, can watch this display board through this display surface.

CD-ROM drive motor 26 and lamp 40 are controlled by control gear.The control of CD-ROM drive motor is like this, be screen can cross corresponding display surface and from a roller to the motion of another roller, thereby make each display board that carries by screen enter into the position of crossing each display surface, and can before moving it, keep the suitable time in this position.If desired, the demonstration time of each display board can change as required.The display mode of display board can be that order shows, perhaps can show according to the determined order of setting by control device of program, in addition, control device control lighting device 40 and drive unit only start lighting device when demonstration is static when using display board with box lunch.The control of control device illumination apparatus is such, and when promptly making screen motion when CD-ROM drive motor 26 startups, lighting device cuts out, and like this, sees through each display surface and all can not see Visual Display substantially.

In use, maybe when the existing display screen of replacing, the demountable panel on a sidewall is unloaded when loading display screen on display board, support moves to its second place.In this position, can be picked and placeed at the roller and the screen of each side of each face of support.In order to change screen, existing screen disconnects on steering tape and the support, and screen is wrapped on the roller fully.Again this roller is taken out from support, and have on it new roller of new screen to replace with one.After new roller is in place, screen is contained on the steering tape of another roller.When being in the second place, support can carry out this operation to screen at each face of support.

The display board that first embodiment provides a kind of demonstration that two display surfaces and each display surface can be provided to change.This display board makes a plurality of displaying contents show according to required order and with the time interval that changes.In addition, the display board that will show can change at an easy rate.And when the display board that will show on display surface changed, lighting device cut out, and because of the dyeing of display surface the display board of motion can not seen simultaneously.In addition, the display board of first embodiment can change demonstration at an easy rate, and because support can shift out housing to the second place, therefore can safeguard the movable part of display board.

In second embodiment shown in Figure 7, the difference of it and first embodiment is lighting device.In a second embodiment, lighting device comprises a pair of tubular fluorescent lamp 40.This lamp links to each other with a pair of reflector arrangement 41 in each side of support, and the reflector arrangement among this reflector arrangement 41 and first embodiment is similar.The difference of second embodiment is that a reflecting plate 50 is arranged between lamp, has replaced the curtain 42 among first embodiment.In addition, this reflecting plate can rotate to obliquity around center longitudinal axis 52, and is shown in dotted line, thereby can more change the bulb.

In the 3rd embodiment shown in Figure 8, the difference of it and first embodiment is the mounting characteristics of the support 20 in the housing and support is picked and placeed to safeguard and to change the mode of screen.In the 3rd embodiment, one side 12 hinged supports of display board so that it can be produced, thereby can enter the inside of housing from housing on a side of housing.In addition, support is bearing in the housing by a pair of arm 60.Arm 60 is journaled into the roof of housing and the end on the diapire, and each wall is installed in the end that position on roof and the diapire is positioned at each end wall.The other end of each arm is pivotally mounted in the center of each frame unit of support 20.Because the supporting of 60 pairs of supports of arm, thereby when as shown in Figure 8 a surface 12 being rotated when opening housing from housing, arm can be with respect to framework and pivot rotates, so that as shown in Figure 8 support is shifted out housing.When in this position, support 20 can rotate on arm, so that pick and place all components of support.

The 5th embodiment as shown in Figure 9 comprises the feature that aforementioned each embodiment comprises.In the 5th embodiment, each frame unit has the hole 70 near each roller 24 and 25.This hole is in frame unit and to each side of screen.This hole will cooperate with securing rod 72, these securing rod 72 supporting pair of locking pins 74, and this keeps at a certain distance away along this bar to stop pin 74, and this distance is corresponding with the interval in the hole 70 of close each roller.During use, by selling 74 holes that place frame unit, securing rod 72 crosses screen near each roller and fixes.Therefore, screen is clamped maintenance by securing rod, so that take out display board between securing rod.

When needs or wish a display board is taken off or when wishing to replace this display board with another display board, makes screen cross display surface and move from screen, up to the display board that will take off across on display surface.Inserting by the stop pin 74 with each securing rod 72 then uses securing rod 72 that screen is held in place in the respective aperture of each side of display board.Again by display board is downcut and the part that unwanted display board is housed of screen is removed from screen from screen.And then with new display board splicing on the screen or an end of the screen that will produce owing to the excision operation from corresponding securing rod throw off and splicing owing to excise on the other end of operating the screen that produces.This securing rod can be bearing in screen on the support when extracting unwanted display board out and inserting new display board.

According to a kind of version of the 5th embodiment, the hole is positioned on the guidance surface, through on each edge in this hole a series of eyelet is arranged when screen moves between roller along it.This Kong Yuyi group can be passed the eyelet that aligns on the screen and the stop pin in this hole combines, thereby unwanted display board is being taken off and screen is being held in place in screen the time new display board splicing.

It can also be seen that in use, the lighting device of each embodiment provides uniform illumination by screen to display surface, therefore do not have the luminance difference of each fluorescent tube.Characteristics of one type of prior art syringe are: owing to shine the brightness difference of the light on the display surface, therefore can feel the existence of each fluorescent tube.In each embodiment, because first reverberator between outermost fluorescent tube and display board respective side edge and second reverberator between parallel fluorescent tube, the light that is distributed on the display surface is even substantially on whole display surface.Therefore, because this display screen and lighting device have produced high-quality demonstration on display surface.

In whole instructions, unless context has explanation in addition, speech " comprises " or its version should be understood to and comprises described integral body or whole group, does not comprise other whole or whole group but do not get rid of.

Should also be appreciated that scope of the present invention is not defined as the particular range of the foregoing description.

Claims

1. a display board comprises a housing, and this housing has a front surface with display surface; The rotatably mounted a pair of roller of described housing, this is arranged in the opposite side of display surface substantially parallel to roller; Described roller can be at screen with a plurality of display boards of supporting between they self, and these display boards each have basic and the corresponding shape of display surface; A drive unit is used for making a rotation of this roller, and this screen is moved on the described roller from another roller; One control device starts the drive unit of a described roller, thereby makes screen cross the display surface motion, and like this, each display board is in across the position of display surface and in this position and keeps certain hour; This housing also supports a lighting device, and this lighting device is positioned at display surface and by the screen back of roller bearing; Described roller, drive unit and lighting device are bearing on the support that is supported by housing; This bracket supports is on housing, thereby can move in housing and between the primary importance behind the display surface and the second place, in this second place, this support is positioned at this housing outside, and in this second place, roller, screen and lighting device can be approaching.

2. display board according to claim 1, wherein: this housing has second display surface, and this support is equipped with a pair of second roller, and this is arranged in the opposite side of this second display surface substantially parallel to second roller; Described second roller can be at second screen with a plurality of display boards of supporting between they self, and these display boards have basic and the corresponding shape of second display surface; One second drive unit can make a rotation in this second roller, and this screen is moved on described one second roller from another second roller; Described control device is controlled second drive unit; This second screen is between the lighting device and second screen.

3. display board according to claim 1 and 2, wherein: described control device is also controlled the work of lighting device, like this, starts so that during screen motion, this lighting device cuts out at drive unit.

4. display board according to claim 3, wherein: when lighting device was not opened, display surface can limit sight line transmission display face.

5. according to claim 3 or 4 described display boards, wherein: it is transparent that display surface is processed into the light that sends for lighting device, but when lighting device was not opened, the visibility of display board was restricted at this display surface place.

6. according to the described display board of aforementioned any one claim, wherein: screen twists on one or two described roller, and the length of this screen is many times of spacing between the roller, therefore, when a roller rotates owing to drive unit, screen will wind off from another roller, move through display surface and be wound on described first roller.

7. display board according to claim 6, wherein: can optionally drive each roller, thereby screen is twisted on the roller that is driven by this drive unit.

8. display board according to claim 8, wherein: display surface is substantially parallel, and screen is positioned at the opposite side of lighting device.

9. according to Claim 8 or 9 described display boards, wherein: first and second screens comprise a public screen, and this common screen will both be passed through first display surface, also by second display surface.

10. according to the described display board of aforementioned any one claim, wherein: control device can make drive unit and another roller throw off and start the drive unit of a roller, thereby makes screen motion.

11. display board according to claim 10, wherein: another roller of a detent and this links to each other, and described detent is started by control device, thereby controls the rotation of this another roller when described first roller is rotated.

12. according to the described display board of aforementioned any one claim, wherein: each roller links to each other with an elongated support member, this elongated support member and each roller extend jointly and an area supported are arranged, described supporting member is resiliently biased, like this, the outside surface of described area supported and roller and cooperate by the part of the screen of this roller bearing.

13. according to the described display board of aforementioned any one claim, wherein: this support is supported in the housing slidably, thereby can move being parallel on the direction of display surface, one side of housing can be opened, thereby make this support be moved out to the second place from this side of housing, in this second place, most of at least support is positioned at the outside of housing substantially, and this bracket supports is on housing.

14. display board according to claim 13, wherein: this sidewall comprises a lateral sidewall of housing.

15. display board according to claim 13, wherein: this sidewall comprises the roof of housing.

16. display board according to claim 13, wherein: this sidewall comprises the diapire of housing.

17. according to claim 13,14,15 or 16 described display boards, wherein: this support is bearing on the housing by a telescopic guideway.

18. according to any one described display board in the claim 1 to 12, wherein: the display surface hinged support is on housing, thereby be moveable to open position, in this position, this display surface stretches out from housing, on housing, this web member can make support shift out housing when display surface is shown in an open position and support this support in this second place described support by connector supporting.

19. display board according to claim 18, wherein: this web member comprises a pair of arm, this arm the one end pivoting be bearing in the housing opposite side, support the position away from the one end be pivotally supported at this to arm between.

20. display board according to claim 19, wherein: this bracket supports is at the other end of described arm.

21. display board according to claim 19, wherein: this bracket supports on arm, thereby can be around the central axis of this support and rotate.

22. according to any one described display board in the claim 19 to 21, wherein: this arm respectively comprises an elongate articles, this elongate articles is contained at the one end on the end of respective side of housing.

23. according to any one described display board in the claim 19 to 21, wherein: this arm comprises a plurality of web members, these web members are pivotally connected mutually, thereby hinged web member is provided.

24. according to any one described display board in the aforementioned claim, wherein: this drive unit comprises the CD-ROM drive motor that is used for each roller, wherein, each CD-ROM drive motor is operatively connected with corresponding roller by clutch coupling, described control device is controlled the startup of this CD-ROM drive motor and clutch coupling, thereby makes screen motion.

25. according to any one described display board in the aforementioned claim, wherein: lighting device comprises the elongate fluorescent lamp pipe of arranging substantially in a plane, this fluorescent tube extends on the major part of display surface height at least, described fluorescent tube parallel array, outermost fluorescent tube is inwardly spaced apart from the hithermost edge of display surface, first reverberator stretches out from outermost fluorescent tube, and comprising a pair of reflecting plate, first edge of each reflecting plate is dispersed near corresponding outermost fluorescent tube and from this.

26. display board according to claim 25, wherein: this arrangement comprises the parallel fluorescent tube of two row.

27. display board according to claim 25, wherein: this arrangement comprises the fluorescent tube of three parallel rows.

28. according to claim 26 or 27 described display boards, wherein: every row comprises an elongated fluorescent tube.

29. according to any one described display board in the claim 25 to 28, wherein: each plate is the plane substantially.

30. according to any one described display board in the claim 25 to 29, wherein: second reverberator is extending between the parallel fluorescent tube and on the whole length of the parallel fluorescent tube of arranging substantially.

31. display board according to claim 30, wherein: described second reverberator is the plane substantially.

32. according to claim 30 or 31 described display boards, wherein: this second reverberator comprises a reflection curtain.

33. according to claim 30 or 31 described display boards, wherein: this second reverberator comprises that one is the plate of rigidity substantially.

34. display board according to claim 33, wherein: this plate is pivotally supported on the support, so that can rotate around the axis that is basically parallel to fluorescent tube.

35. display board as described herein substantially.