WO2005041589A1

WO2005041589A1 - Arrays for three-dimensionally perceptible and/or two-dimensional representation of images

Info

Publication number: WO2005041589A1
Application number: PCT/EP2004/011886
Authority: WO
Inventors: Ingo Relke; Wolfgang Tzschoppe; Thomas BRÜGGERT; Markus Klippstein; Paul-Louis Meunier; Bernd Riemann
Original assignee: X3D Technologies Gmbh
Priority date: 2003-10-22
Filing date: 2004-10-21
Publication date: 2005-05-06

Abstract

The invention relates to an array for three-dimensionally perceptible and/or two-dimensional representation of images of a scene, objects or texts. The inventive array for image reproduction comprises at least a first image reproducing device (3D) which temporarily or continuously enables a spatially perceptible representation without any auxiliary means and at least a second image reproducing device (2D) which temporarily or continuously enables a two-dimensional representation, wherein the image reproducing devices (2D, 3D) are mechanically connected in such a way that the relative position of the image reproducing devices (2D, 3D) with respect to one another can be changed. The inventive array can also be configured in the form of a portable computer by means of which it is possible to represent simultaneously three-dimensionally and two-dimensionally perceptible image contents on full image surfaces. This is particularly useful when purely two-dimensional control codes of a program or texts are to be shown on one image reproducing device (2D) while a spatially perceptible graphic is to be shown on another image reproducing device (3D).

Description

title

Arrangements for three-dimensionally perceptible and / or two-dimensional representation of images

Field of the Invention

The invention relates to arrangements for three-dimensionally perceptible and / or two-dimensional representation of text or images of a scene or an object.

State of the art

Various methods and arrangements for optionally three-dimensionally perceptible and / or two-dimensional representation are known in the prior art.

WO 01/56 265 by the applicant describes a method for spatial representation in which at least one wavelength filter array ensures a spatially perceptible representation. In a special embodiment of this invention, an LC display acts as a wavelength filter array with a variable transmittance. Switching between 2D and 3D display is thus achieved. The disadvantage here, however, is that the light through two LC displays, i.e. must penetrate through a large number of polarization filters, color filters, liquid crystal layers and other components such as carrier substrates, so that the brightness is reduced both in the 2D and in the 3D representation.

A switchable 2D / 3D display is known from US Pat. No. 1,557,424, two LC display panels being connected in series and one being connectable and disconnectable Barrier for the 3D or 2D representation serves. Partial switching between 2D and 3D image sections is also possible.

No. 5,897,184 proposes an autostereoscopic display with a reduced-thickness lighting component for portable computer systems, which allows switching from 3D to 2D and vice versa. This 2D / 3D display has the following disadvantages in 3D mode: First, it is a viewer display. To ensure a certain freedom of movement, an elaborate tracking system would be necessary, which cannot be implemented here because of the main component. Furthermore, said 2D / 3D display in 3D mode shows strong moiré stripes from almost all viewing positions, which are only imperceptible in the prescribed viewing position.

In one embodiment, the light available for the 3D mode is scattered in 2D mode with the aim of eliminating the SD image separation by homogenizing the lighting. In 2D mode, when using a switchable diffusing screen, the image brightness is reduced compared to 3D mode, since the scattering state of such diffusing screens has a transmittance less than 1. In addition, the device can only be manufactured with a high level of manufacturing complexity.

DE 1 00 53 868 C2 from the applicant describes an arrangement for optionally two- or three-dimensional display with a 2D and a 3D illumination in the viewing direction behind an image generator. The disadvantage here is that the 2D illuminating light cannot be designed to be sufficiently homogeneous. Furthermore, when a commercially available light guide is used as 2D lighting, its macroscopic structure is usually visible to the viewer (s) and generates a disturbing moiré pattern. However, an invisible microscopic structuring is complex and expensive to manufacture.

A disadvantage of the above-mentioned methods and arrangements is the relatively high technical and equipment complexity. Furthermore, many known arrangements cannot simultaneously reproduce a three-dimensionally perceptible and a two-dimensional image - especially not over the entire surface.

DE 1 0037437 describes an optical structure plate which is brought in front of an image generator to produce a spatial impression and for switching over to a 2D mode is removed from it. Here, too, a three-dimensionally perceptible and a two-dimensional image cannot be reproduced at the same time - in particular also not over the entire surface.

Description of the invention

Proceeding from this, it is an object of the present invention to provide an arrangement of the type mentioned at the outset, which can be implemented using simple means. The arrangement should be able to switch between at least two operating modes, in a first mode one or more viewers are simultaneously presented with a spatially perceptible or a two-dimensional image without aids, and the other form of representation is made possible in a second mode.

In the second mode, a full-area and simultaneous three-dimensionally perceptible and two-dimensional representation of image contents is particularly preferably to be realized.

This object is achieved according to the invention with an arrangement for image display, comprising: - at least one first image display device, which temporarily or continuously permits a spatially perceptible display without tools, and at least one second image display device, which temporarily or continuously permits two-dimensional display, the image display devices being mechanically such are related to each other that their relative position to each other can be changed.

"Temporary or permanent" also means "at least temporarily".

Exactly two, namely a first and a second image display device, are preferably considered, the first image display device permanently permitting a spatially perceptible display and the second image display device permanently permitting a two-dimensional display.

In the technical implementation, for example, color LC displays or other flat displays can be used as image display devices. These can be, for example, as Desktop or wall-hanging variants or also as mobile displays.

Said relative position of the image display devices can preferably be changed in that the image display devices are mechanically connected to one another via at least one hinge joint and / or at least one rail and / or at least one movably mounted strut. Furthermore, tilting, turning or swiveling can be realized due to the mechanical connection.

Thus, it can be provided that only the first or only the second or also simultaneously both image display devices are moved in order to change their relative position to one another.

In a first relative position of the image display devices to one another, the image area of at least one image display device is at least partially covered in the viewing direction by the other image display device, while in a second relative position the image areas of both image display devices are essentially completely visible in the viewing direction. The “viewing direction” here means both the respective viewing direction of an individual viewer on the respective image display device and different viewing directions of at least two viewers on the respective image display device.

Thus, in the first relative position, one of the image display devices, e.g. the first can be stored behind the other, for example when it is not in use. The user can then work with the still visible image display device.

For example, when the first relative position is set, only the second image display device can be visible for the purpose of displaying two-dimensional image content, while both image display devices are visible in a second relative position. In the second relative position, a three-dimensionally perceptible representation over the entire area on the first image reproduction device and a two-dimensional representation over the entire area on the second image reproduction device are thus possible at the same time. It is conceivable that in the second relative position both image display devices are arranged horizontally directly next to one another, the adjoining edges of the image display devices being approximately at the position which corresponds to the center of the screen of the image display device visible in the first relative position.

Furthermore, it can be advantageous that in the relative position assumed for exactly one or at least two viewers, the view of a first image display device, which temporarily or continuously permits a spatially perceptible display without tools, and / or of a second image display device, which is temporary or continuously allows a two-dimensional display, is possible without being affected.

In other words, in principle the image display devices can be arranged in the respective relative position for viewing only for one viewer as well as for two or more viewers. With exactly one viewer for the two or more image display devices, the vertical planes intersect through the normals on the centers of the image surfaces of both image display devices, preferably in the body axis of the viewer. In the case of two observers, for example, the vertical planes can intersect through the normals on the centers of the image areas of both image display devices in infinity or behind both screens. In a special case, two viewers sit opposite each other and the normals on the centers of the image surfaces of both image display devices are oriented in the opposite direction.

Using suitable mechanical aids, it is also possible to additionally tilt or tilt both or only one image display device during the first and the second relative position, for example in order to achieve a position of the displayed image content that is particularly suitable for the viewer. To a certain extent, the adjustment functions such as vertical adjustment and tilting, which are common with ordinary 2D screens, are made possible.

The relative position of the two image display devices relative to one another can also be fixed by means of locking mechanisms, locking screws or the like. A certain amount of transport protection for the arrangement according to the invention against vibrations can thus be achieved. A further form of securing the arrangement for transportation can also be achieved by an embodiment in which the image display devices are arranged in a relative position with image surfaces facing each other.

Of course, more than two different relative positions can be provided, which the image display devices assume to each other. In this case, the visual relationships described above of the exemplary first and second relative positions mentioned should preferably be realized.

The first image display device preferably has at least one filter array and / or a lenticular screen and / or a barrier screen, so that at least one, but preferably several viewers, temporarily or continuously, can perceive a spatial image without tools. This does not exclude that other optics or methods can also be used to generate an autostereoscopic display.

Arrangements and methods for spatially perceptible display using filter arrays are known to the person skilled in the art, for example, from DE 1 00 03 326, DE 201 21 31 8 U1, PCT / EP2004 / 004464, PCT / EP2004 / 001 833, PCT / EP03 / 07620 and DE 1 01 45 1 33.4 and other documents are known. Such a filter array can be laminated onto an anti-reflective glass plate, the glass plate with the filter array being glued to the edges of an image display device by means of double-sided adhesive tape. Other configurations are conceivable.

The arrangement according to the invention advantageously further includes a computing device and / or electronic components for controlling the at least two image display devices. Furthermore, means for interaction of one user or several users with the computing device can be provided.

The control and / or the means for interaction also make it possible for only those of the image display devices that are actually currently being used for image display to be switched on. Such an embodiment of the invention is particularly energy-saving.

For special configurations of the arrangements according to the invention, at least one movable support leg is attached to at least one of the image display devices. gene available. The support foot advantageously extends when moving, for example when moving, the respectively moving image display device and serves to stabilize the same in the set relative position. This is particularly advantageous if the arrangement according to the invention relates to hinged image display devices, such as those of laptops, and the mass of one or more additional image display devices influences the mechanical stability of the entire arrangement.

Further refinements provide that the first image display device, which temporarily or permanently permits a spatially perceptible display without tools, can temporarily be switched over to a two-dimensional display mode over the full or partial area. Various measures are known to the person skilled in the art, e.g. from WO 01/056265 or WO 2004/057878.

It is equally possible that the second image display device, which temporarily or continuously allows a two-dimensional display, can temporarily be switched over to a mode for a spatially perceptible display that is tool-free.

The aforementioned configurations are suitable for those applications in which two (different) spatially perceptible images that are as full as possible or two (different) two-dimensional images or text contents that are as full as possible are to be displayed temporarily at the same time.

In the special case of the two or more image display devices, which simultaneously (temporarily or continuously) present spatially perceptible images, different or differently developed methods or detailed arrangements can be used to produce a spatial impression.

Further variants provide that all image display devices of the arrangement according to the invention have image areas of essentially the same size or of different sizes. The same also applies to the pixel resolution of the image display devices used; this can be identical or different. Preferably, but not necessarily, the image display devices (for comparable image content) represent approximately equally bright images. However, it is also possible for the two-dimensional display on one image display device to be ler or darker than the three-dimensionally perceptible representation on the other image display device.

Of course, in the embodiments of the invention, housings, for example made of plastic, can also be present for housing the image display devices and other components.

It is also conceivable to design at least one of the image display devices to be mechanically detachable. The relevant image display device can then be positioned at a suitable position next to the arrangement and still be controlled by it. A corresponding data cable or a so-called wireless interface can be used for data transmission.

The object of the invention is further achieved with a portable computer which, according to the invention, comprises a first image display device which, temporarily or continuously, permits a spatially perceptible display without tools, and a second image display device which, temporarily or continuously, allows a two-dimensional display, the said two image display devices are mechanically connected to one another in such a way that the relative position of the two image display devices can be changed.

As portable computers are as common today laptops, books notebooks, ^PDAs or the like in question. Further configurations, in particular also mobile telephones and other mobile computing devices, are conceivable.

In the portable computer according to the invention, the two image display devices are advantageously connected to one another via at least one rail for displacing at least one of the image display devices. For example, the first image display device (for the 3D display) can be slidably attached to the rear of the second image display device (for the 2D display) via two rails.

Particularly preferably, in the portable computer according to the invention, the first image display device is positioned behind the second image display device in the viewing direction in a first relative position and thus largely completely covered by the latter, while in a second relative position both image display devices are arranged approximately next to one another in the viewing direction. The first relative position thus permits a full-surface two-dimensional display (on the second image display device), while the second relative position simultaneously enables the full-surface display of two- and three-dimensional image contents (on each of the image display devices).

Furthermore, both image display devices are preferably controlled via a digital interface from one and the same graphics card of the portable computer (or the interface of a corresponding component). This prevents negative influences due to analog data connections from being effective. The power supply of the image display devices can be integrated internally in the portable computer or can be ensured via a separate power supply device.

Of course, the image display devices must be controlled with suitable image content. Thus, for a two-dimensional representation, an image with image information from only one view of a scene / object / text or the like is to be generated and displayed, while for a three-dimensionally perceptible representation on the corresponding image display device, as a rule, one composed of image information from several views Image is played. Appropriate software for image generation is required; such software is known in the prior art.

The object of the invention is also achieved by an arrangement for image display, comprising: at least one first image display device which temporarily or continuously permits a spatially perceptible display without tools, at least one second image display device which temporarily or permanently at least on a partial area of its image display surface two-dimensionally perceptible representation allowed, the at least two image display devices being arranged in close spatial proximity to one another.

The at least two image display devices are preferably arranged in a common frame. In this case, at least one outer edge of each of the image display devices advantageously adjoins an outer edge of another image display device. The non-image-reproducing areas formed by the immediately adjacent edges are small in relation to the image-reproducing areas of the image display devices. At best, these non-image-reproducing areas are not visible at all, for example because they are extremely narrow.

Furthermore, the image display areas of the image display devices can be aligned parallel in one and the same spatial plane, in parallel in different spatial planes and / or not parallel to one another, depending on the arrangement of the same.

In order to achieve particularly large image-reproducing areas, a total of 4 or 9 first and / or second image display devices are included in the arrangement according to the invention. These are then preferably arranged in a 2x2 or 3x3 grid within a frame.

In this case, too, all the image display devices are advantageously controlled by a common control device or by different control devices which are, however, connected to one another in terms of signal technology. Commercially available PCs can be used for control.

BRIEF DESCRIPTION OF THE DRAWINGS The invention is explained in more detail below with the aid of examples. Show in the accompanying drawings

Fig. 1 an arrangement according to the invention in which the image display devices are in a first relative position to each other, Fig. 2 an arrangement according to the invention in which the image display devices are in a second relative position to each other, Fig. 3 an arrangement according to the invention with a portable computer, wherein 4 shows an arrangement according to the invention with a portable computer, the image reproduction devices being in a second relative position to one another, 5 shows an arrangement according to the invention with a portable computer, the image display devices being in a second relative position and both image display devices being movably mounted relative to one another, FIG. 6 shows another arrangement according to the invention with a portable computer, the image display devices being in a first relative position to one another are located,

7 shows the arrangement according to the invention with a portable computer according to FIG. 6, the image display devices being in a second relative position to one another,

8 shows the basic sketch of a further arrangement according to the invention with a portable computer,

9 shows an arrangement according to the invention, in which two image display devices are in a first relative position for securing the transport to one another,

10 shows the arrangement according to the invention according to FIG. 9, in which the two image display devices are in a second relative position to one another,

Fig.l 1 the inventive arrangement according to Fig.9, in which the two image display devices are in a third relative position to each other, Fig.l 2 an arrangement according to the invention, in which two image display devices are arranged within a common frame, and

Fig.l 3 an arrangement according to the invention, in which more than two image display devices are provided within a common frame.

Detailed description of the drawings

1 shows an arrangement according to the invention in which the image display devices provided are in a first relative position to one another. This arrangement comprises - an image display device 2D, which temporarily or continuously allows a two-dimensional representation, and an image display device 3D, which temporarily or permanently permits a spatially perceptible display without tools.

In the first relative position, shown in perspective in FIG. 1, of the two image display devices 2D, 3D with respect to one another, the image display device 3D is essentially not to be seen, since the image device 2D is covered. The image display device 3D is only indicated with a dashed line.

According to the invention, the two image display devices 2D, 3D are mechanically connected to one another in such a way that their respective relative positions can be changed.

The image display devices 2D, 3D are, for example, 1 9 "TFT-LC displays, as are used in the ViewSonic VX900 monitor (for the 2D display) or X3D-19 display AD (for the 3D display) ,

The aforementioned relative position of the two image display devices 2D, 3D can be changed in that they are mechanically connected to one another via two rails. The rails are located, for example, behind the 2D image display device at their upper and lower edges. As a rule, therefore, only the image display device 3D is moved in order to change the relative position.

As already explained, the image area of the image display device 3D cannot be seen in FIG. 1, since it is completely covered by the image display device 2D. However, by moving the image display device 3D relative to the image display device 2D, it can be achieved that the image display device 3D is at least partially visible.

The image display device 3D can therefore be accommodated in the first relative position behind the image display device 2D, for example when it is not being used. The user can then work with the image display device 2D, for example to display and edit two-dimensional images and texts.

2 shows, for example, an arrangement according to the invention in which the image display devices 2D, 3D are in a second relative position to one another. In the second relative position, the image areas of both image display devices 2D, 3D are completely visible in the viewing direction. The image display device 3D is in turn suitable for the (temporary or permanent) spatial display. A first relative position can therefore be set, in which only the image display device 2D is visible for the purpose of displaying two-dimensional image content, or a second relative position, in which both image display devices 2D, 3D are visible, so that at the same time a full-surface two-dimensional and three-dimensional representation for one or more viewers is possible.

The relative position of the two image display devices 2D, 3D relative to one another can also be fixed by means of locking mechanisms, locking screws or the like. A certain amount of transport protection of the arrangement according to the invention against vibrations can thus be achieved.

The image display device 3D preferably has a filter array, so that at least one, but preferably several viewers, temporarily or continuously, can perceive a spatial image without tools.

3 shows a further example of the arrangement according to the invention, this being pronounced in connection with a portable computer.

In FIG. 3 there are again two image display devices 2D, 3D in the first relative position to one another, which has already been explained further above, so that the image display device 3D is not visible because it is initially arranged behind the second image display device 2D. Both image display devices 2D, 3D belong here to a portable computer and are mechanically connected to the computer housing 1.

According to the invention, an image display device 3D, which allows a spatially perceptible display without tools, and an image display device 2D, which allows a two-dimensional display, are again provided, the two image display devices 2D, 3D being mechanically connected to one another and to the computer housing 1 in such a way that their respective Relative position to each other is changeable.

A computing device or the electronic components for controlling the two image display devices 2D, 3D correspond to the modules suitable for this purpose contained in the portable computer and, as usual, are accommodated in the computer housing 1. A keyboard 2 and, for example, are a means of interacting one or more users with the computing device a touch pad 3 and / or a mouse (not shown) are provided as devices for entering commands. Floppy disks / DVD / CD drives 4 are also present.

The control and / or the means for interaction also make it possible for only that of the image display devices 2D, 3D that is actually currently being used for image display to be switched on. Such an installation is particularly energy efficient.

Furthermore, both image display devices are preferably controlled by one and the same graphics card of the portable computer via a digital interface. This prevents negative influences due to analog connections from becoming effective.

The power supply for the image display devices 2D, 3D can be integrated internally in the portable computer or can be ensured via a separate power supply device.

A portable laptop, for example from the Toshiba Satellite or Galaxy 1 559 series from Brite Computers, can be used as a portable computer.

The two image display devices 2D, 3D can also be connected to one another as described above via rails for displacing the image display device 3D relative to the image display device 2D.

Particularly preferably, in the portable computer according to the invention, the image display device 3D is positioned behind the image display device 2D in the viewing direction and thus covered by the latter in the first relative position (cf. FIG. 3). The first relative position thus allows a full-surface two-dimensional display on the image display device 2D.

In the second relative position, both image display devices 2D and 3D are arranged approximately next to one another in the viewing direction, as can be seen from FIG. This enables the simultaneous full-surface display of three-dimensionally perceptible and two-dimensional image content. A special embodiment provides that in the second relative position both image display devices 2D and 3D are arranged directly next to one another, the adjoining edges of the image display devices 2D, 3D being approximately at the location that corresponds to the center of the screen of the image display device 2D visible in the first relative position. This is shown in Fig.5. To make this possible, not only the image display device 3D is movably mounted, but also the image display device 2D. Preferably, rails are not used here, but struts with axes of rotation for movably connecting the two image display devices 2D, 3D.

It is also conceivable to design at least one of the image display devices 2D or 3D to be mechanically detachable from the portable computer. The relevant image display devices 2D or 3D can then be positioned at a suitable position next to the computer and still controlled by it. A corresponding data cable or a so-called wireless interface can be used for data transmission.

6 shows a further arrangement according to the invention with a portable computer, two image display devices 2D, 3D being in a first relative position to one another. The two image display devices are connected to one another via at least one hinge joint 5, and the image display device 2D is now fully visible to one or more users for two-dimensional display.

Starting from this variant according to FIG. 6, a second relative position of the image display devices to one another can be seen in FIG. The e.g. Keyboard 2 designed as a radio keyboard is removed from the portable computer and set up next to the same, and the image display device 2D has been folded onto the surface of the portable computer so that its image area is now not visible. However, the image surface of the image display device 3D is now visible.

8 shows the schematic diagram of a further arrangement according to the invention with a portable computer, the image display devices 2D and 3D each being foldable with their image areas onto opposite large areas of the computer housing 1 by means of horizontally oriented hinge joints 5, which are not shown in detail in the drawing are. For the spatially perceptible representation, the image display device 2D is now simply attached to the portable one Computer folded up; the portable computer is placed on top of the image display device 2D. Conversely, for the two-dimensional representation, the image display device 3D is now flipped to the portable computer; the portable computer is turned over and placed in its place on the image display device 3D.

In this embodiment, a keyboard 2 and a touchpad 3 should be located on each large area of the computer housing 1. In addition, such diskettes / DVD / CD drives 4 are preferably provided which can also be operated upside down so that the corresponding media can be read in any display mode.

The further detailed configurations, which were explained further above with reference to FIGS. 3 to 5, can of course also be largely transferred to the arrangements according to FIGS. 6 to 8.

9 shows a further arrangement according to the invention, in which two image display devices 2D, 3D are in a special first relative position to one another which is suitable for securing the transport. The respective image areas shown in dashed lines face each other. In this variant, the image display devices 2D, 3D are connected to one another via at least one vertically oriented hinge joint 6.

A second relative position of the image display devices 2D, 3D can be seen in FIG. 10. The normals on the centers of the image areas of both image display devices 2D, 3D are now oriented in the opposite direction. Now two or more viewers can sit opposite each other without seeing each other's content. This case is used, for example, when displaying image content for a teacher and a student or for two players.

Fig.l 1 represents a third relative position. Both image display devices 2D, 3D are visible to one or more viewers from essentially one direction.

The advantage of the above-mentioned embodiment according to FIGS. 9 to 11 is that, unlike the arrangement according to FIGS. 7 and 8, the entire arrangement when switching over ten between the relative positions must be raised, since a vertically aligned hinge joint 6 is now available.

Another embodiment of the invention is shown in FIG. 2. Two image display devices 2D, 3D are arranged in a common frame 7. The image display device 2D has an outer edge directly adjoining an outer edge of the other image display device 3D. The edge areas near the immediately adjacent edges, which are not suitable for displaying image content, are very small in relation to the image display areas of the image display devices 2D, 3D.

Furthermore, the image display surfaces of the image display devices 2D, 3D can be aligned parallel in one and the same spatial plane, in parallel in different spatial planes and / or not parallel to one another, depending on the arrangement of the same.

Both image display devices 2D, 3D are advantageously controlled by a common control device or by different control devices which are, however, connected to one another in terms of signal technology. Commercial PCs are one of the options for this.

This latter embodiment according to Fig.l 2 can be further varied, as shown for example in Fig.l 3. Here four image display devices are arranged within a frame 7 in a grid 2x2. Depending on the control, each of these image display devices can be used in 2D mode for the two-dimensional representation of texts and / or images or in 3D mode for the spatial representation of a scene / an object. Here, too, the image display devices directly adjoin one another at outer edges, and the edge areas that are not suitable for displaying image content are very small in relation to the image display areas. An overall relatively large image display area is thus available, on which image information can be perceived three-dimensionally and / or two-dimensionally in selectable area sections.

The arrangement according to the invention offers a number of advantages over the prior art. So it can be achieved with simple means. Furthermore, in some configurations it is possible to simultaneously display three-dimensional to achieve regionally perceptible and two-dimensional image content on the full image area. This is very favorable for a number of software applications, for example if purely two-dimensional control codes of a program or texts are shown on an image display device and a spatially perceptible graphic is shown on the second image display device.

Claims

claims

1 . Arrangement for image display, comprising: - at least one first image display device (3D), which temporarily or permanently allows a spatially perceptible display without tools, and at least one second image display device (2D), which temporarily or continuously permits two-dimensional display, the image display devices (2D, 3D) are mechanically connected in such a way that the relative position of the image display devices (2D, 3D) can be changed.

2. Arrangement according to claim 1, characterized in that the image display devices (2D, 3D) are mechanically connected to one another via at least one hinge joint or at least one rail or at least one movably mounted strut.

3. Arrangement according to one of the preceding claims, characterized in that in a first relative position of the image display devices (2D, 3D) to each other the image surface of at least one image display device (2D or 3D) at least partially in the viewing direction of the other image display device (2D or 3D) and that in a second relative position of the image display devices (2D, 3D) to one another, the image areas of both image display devices (2D, 3D) are essentially completely visible in the viewing direction.

4. Arrangement according to claim 1, characterized in that the image display devices (2D, 3D) via at least one vertically oriented hinge joint (6) are connected to each other, so that - they are directly in a first relative position with their respective image surfaces, in one second relative position the normals are oriented in the opposite direction to the centers of the image areas of both image display devices (2D, 3D), and - in a third relative position the image areas of all image display devices (2D, 3D) are visible from at least one viewing direction.

5. Arrangement according to one of the preceding claims, characterized in that the first image display device has at least one filter array or a lenticular screen or a barrier screen, so that at least one viewer can temporarily or permanently perceive a spatial image without tools.

6. Arrangement according to one of the preceding claims, further comprising a computing device and electronic components for controlling the image display devices (2D, 3D).

7. Arrangement according to one of the preceding claims, further comprising means for interaction of a user or several users with the computing device.

8. Arrangement according to one of the preceding claims, further comprising at least one movable support foot for at least one of the image display devices (2D, 3D).

9. Arrangement according to one of the preceding claims, characterized in that the at least one image display device (3D), which allows a spatially perceptible display without tools, can be temporarily switched over to a two-dimensional display mode over the full or partial area.

1 0. Arrangement according to one of the preceding claims, characterized in that the at least one image display device (2D), which allows a two-dimensional representation, can temporarily be switched over to a mode for a spatially perceptible display without the aid of tools.

1 1. Arrangement according to one of the preceding claims, characterized in that all image display devices (2D, 3D) have image areas of the same size or different sizes.

1 2. Arrangement according to one of the preceding claims, characterized in that all image display devices (2D, 3D) represent bright or different bright images.

1 3. Arrangement according to one of the preceding claims, characterized in that in the respectively assumed relative position for exactly one or at least two viewers, the view of the at least one first image display device (3D), which is temporarily or permanently spatially perceptible without tools Representation allowed, and / or on the at least one second image display device (2D), which temporarily or continuously allows a two-dimensional representation, is possible unimpeded.

4. A portable computer, comprising a first image display device (3D), which temporarily or continuously permits a spatially perceptible display without tools, and a second image display device (2D), which temporarily or permanently allows a two-dimensional display, - the image display devices (2D, 3D ) are mechanically connected to one another in such a way that the relative position of the image display devices (2D, 3D) can be changed.

1 5. Portable computer according to claim 14, characterized in that in a first relative position, the first image display device (3D) is positioned in the viewing direction behind the second image display device (2D) and is therefore covered by this, while in a second relative position both image display devices (2D, 3D) are arranged approximately side by side in the viewing direction.

1 6. Portable computer according to claim 1 4 or 1 5, characterized in that the two image display devices (2D, 3D) for moving at least one of the image display devices (2D, 3D) are connected to one another via at least one rail.

1 7. Portable computer according to claim 1 4, characterized in that the two image display devices (2D, 3D) are connected to one another via at least one hinge joint (5, 6), the two image display devices (2D, 3D) being in a first relative position cover image areas facing one another, so that none of the image areas is visible to an observer, in a second relative position, the two image display devices (2D, 3D) overlap with image surfaces facing away from one another, as a result of which the image surfaces of the two image display devices (2D, 3D) can be seen for viewers from opposite sides, - in a third relative position, the second image display device (2D) is positioned next to the image display device (3D), whereby both image areas are visible to one or more viewers at the same time.

1 8. Portable computer according to claim 14, characterized in that - the two image display devices (2D, 3D) via at least one hinge joint (6) with each other and with the computer housing (1) and around this hinge joint (6) against each other and against the computer housing (1) can be pivoted, the image area of the first image display device (3D) being visible in a first relative position, while the image area of the second image display device (2D) is covered by the first image display device (3D) or the computer housing (1), in In a second relative position the image area of the second image display device (2D) is visible, while the image area of the first image display device (3D) is covered by the second image display device (2D) or the computer housing (1), in a third relative position the image areas of both image display devices ( 2D, 3D) on the computer case (1) opened u nd are not visible.

1 9. Portable computer according to one of claims 1 4 to 1 8, characterized in that the keyboard (2) is designed as a removable radio keyboard and can be assigned to either the first image display device (3D) or the second image display device (2D).

20. Portable computer according to one of claims 1 4 to 1 8, characterized in that two touchpad ^'s are present (3), of which the first image reproducing means (3D) is assigned to the other of the second image display device (2D).

21st Arrangement for image reproduction, comprising: at least one first image display device, which temporarily or permanently permits a spatially perceptible display without tools, at least one second image display device, which temporarily or continuously allows a two-dimensional display on at least one partial area of its image display area,

22. Arrangement for image reproduction according to claim 21, in which the image reproduction devices are arranged in close spatial proximity to one another.

23. The arrangement according to claim 21, characterized in that all the provided image reproduction devices are present within a common frame (7).

24. The arrangement according to claim 21 or 22, characterized in that a total of 4 image display devices are arranged in a 2x2 grid within the common frame (7).

25. Arrangement according to one of claims 21 to 23, characterized in that at least one outer edge of each of the at least two image display devices directly adjoins an outer edge of another of the at least two image display devices.

26. Arrangement according to one of claims 21 to 24, characterized in that the image display surfaces of the image display devices are aligned parallel in one and the same spatial plane, parallel in different spatial planes and / or not parallel to one another.