DE102009022049B4 - Method and arrangement for spatial representation - Google Patents

Abstract

Method for spatial representation, in which
On a grid (1) of picture elements x (i, j) with lines (i) and columns (j) image part information of different views A (k) with k = 1, ..., n and n> 1 are made visible and
- the grid (1) of pixels x (i, j) at a distance s at least one parallax barrier screen (2) upstream or downstream, which contains at least opaque and transparent surface portions,
- So that one or more observers (3) due to the visual restriction effect by the at least one parallax barrier screen (2) each with two eyes at least partially different picture elements x (i, j) and / or parts thereof see or see, whereby both eyes respectively perceive at least partially different views A (k) and thus creates a spatial visual impression, characterized in that
- At least one boundary line between two different, but immediately adjacent to each other surface portions is formed according to regulation of a Mandelbrot amount or a fractal.

Description

The The invention relates to the field of spatial representation, in particular the spatially without aids noticeable representation for at the same time several observers, the so-called autostereoscopic visualization.

For some time, there have been approaches to the aforementioned subject area. A pioneer in this field was Frederic Ives, who in Scripture GB 1904/18672 A presented a system with a "line screen" for 3D presentation. Furthermore, in the paper by Sam H. Kaplan "Theory of parallax barriers", Journal of SMPTE Vol. 59, No. 7, pp 11-21, July 1952 fundamental findings on the use of barrier screens for the 3D representation are described.

In the JP 8-331605 AA describe Masutani Takeshi et al. a step barrier in which a transparent barrier element has approximately the dimensions of a color subpixel (R, G or B). With this technique, it was possible for the first time to partially redirect the vertical resolution of the loss of resolution in the horizontal direction that occurs in most autostereoscopic systems due to the simultaneous display of several views (at least two, preferably more than two views). The disadvantage here, as with all barrier methods, is the high loss of light.

Pierre Allio succeeded in teaching after the US 5,808,599 A . US 5,936,607 A and WO 00/10332 A1 a noteworthy evolution of lenticular technology, using a sub-pixel-based view layout as well.

Another outstanding result was presented by Cees van Berkel with the EP 0 791 847 A1 patent pending. Lenticular lenses inclined relative to the vertical are located above a display which also shows different perspective views. Characteristically n views are divided on at least two screen lines, so that in turn the loss of resolution from the horizontal is partially transferred to the vertical.

lenticular However, they can only be produced with great difficulty and the production process for one on it based 3D display is not trivial.

Jesse Eichenlaub founded several of the milestones for autostereoscopy with the writings US 6,157,424 A and WO 02/35277 A1 as well as several other inventions.

With the DE 10 003 326 C2 succeeded Armin Grasnick et al. a further development of the barrier technology with respect to two-dimensionally structured wavelength-selective filter arrays to produce a 3D impression. However, the disadvantage here too is the greatly reduced brightness of such 3D systems compared with a 2D display.

Armin Schwerdtner succeeded with the WO 2005/027534 A2 a novel technological approach for a full-resolution 3D rendering in all (usually two) views. However, this approach is associated with high adjustment effort and for larger screen diagonals (from about 25 inches) difficult to implement. The DE 102 61 657 A1 by Wolfgang Tzschoppe describes an arrangement for two- or three-dimensional representation, wherein a controllable in at least two operating modes lighting device is used. At the same time wavelength filter arrays for stereo channel separation are used. The disadvantage here is the necessity of the special design of the illumination device with an additional, parallel to the wavelength filter array Abstrahlebene.

Finally, the DE 10 2007 016 773 A1 by Otte et al. a special embodiment of parallax barrier screens, but the required slot width of the barrier of at least 1.9 pixels sometimes leads to deterioration of the channel separation.

Of the The invention is based on the object, a possibility for autostereoscopic Presentation based on the barrier technology to create for simultaneously multiple viewers to achieve improved perceptibility. Under improved perceptibility is particular, but not alone, a reduction of visual overlay effects such as Moiré to understand.

• – auf einem Raster aus Bildelementen x(i, j) mit Zeilen i und Spalten j Bildteilinformationen verschiedener Ansichten A(k) mit k = 1, ..., n und n > 1 sichtbar gemacht werden, und
• – dem Raster aus Bildelementen x(i, j) im Abstand s mindestens ein Parallaxenbarriereschirm vor- oder nachgeordnet ist, welcher wenigstens opake und transparente Flächenanteile enthält,
• – so dass ein oder mehrere Betrachter auf Grund der Sichtbeschränkungswirkung durch den mindestens einen Parallaxenbarriereschirm jeweils mit beiden Augen zumindest teilweise unterschiedliche Bildelemente x(i, j) und/oder Teile davon sieht bzw. sehen, wodurch beide Augen jeweils zumindest teilweise unterschiedliche Ansichten A(k) wahrnehmen und damit ein räumlicher Seheindruck entsteht,
• – wobei erfindungsgemäß mindestens eine Begrenzungslinie zwischen zwei verschiedenartigen, jedoch unmittelbar aneinander angrenzenden Flächenanteilen nach Vorschrift einer Mandelbrot-Menge oder eines Fraktals geformt ist.

This object is achieved by a method for spatial representation, in which

• On a grid of picture elements x (i, j) with rows i and columns j, visual part information of different views A (k) with k = 1, ..., n and n> 1 are made visible, and
• - the grid of pixels x (i, j) at a distance s at least one parallax barrier screen is arranged upstream or downstream, which contains at least opaque and transparent surface portions,
• In such a way that one or more observers see or see at least partially different picture elements x (i, j) and / or parts thereof with the two eyes due to the visual confining effect by the at least one parallax barrier screen, whereby both eyes at least partially represent different views A ( k) and thus create a spatial visual impression,
• - wherein according to the invention at least one Be is formed between two different but directly adjacent surface portions according to the instructions of a Mandelbrot amount or a fractal.

The new procedures opened novel means-effect relationships. First, by the Use of the embodiment according to the invention said boundary lines and thus the edges of the transparent and opaque area proportions a much gentler transition the views seen A (k) with lateral movement of the viewer allows. This also applies in the presence of semi-transparent area shares.

Because of the expression of the parallax barrier screen with said properties can moreover unpleasant moiré effects that for example, in the exposure of a photographic film as a barrier structure can arise be avoided. Furthermore, the inventive design helps of the parallax barrier screen, visual overlays, hence again Moiré effects that by looking at the grid of picture elements through the parallax barrier screen can arise through, to avoid or at least greatly minimize. this happens in that due to the inventive design of the boundary lines the different area shares in the usual Periodically predetermined distances between opaque area proportions locally changed and thereby visually different - usually periodic - distances arise which result in less strong or even no moiré effects.

at the method according to the invention the arrangement of the image part information of different views takes place A (k) on the grid of picture elements x (i, j) advantageously in one two-dimensional periodic pattern, the period length in the horizontal and vertical direction preferably not more than each 32 pixels x (i, j) comprises. Exceptions to this limit each of 32 pixels x (i, j) are allowed.

Particular embodiments of the reproduction of the image part information, such as in the DE 101 45 133 C1 described are also possible.

Prefers the vertical period length is the same the number n of displayed views. This number of views For example, n may be 2, 3, 4, 5, 6, 7, 8, 9 or more.

For all following Embodiments is based on exactly one parallax barrier screen, although for certain applications Also, several such Parallaxenbarrierenschirme be beneficial can.

henceforth The picture elements x (i, j) correspond in each case to individual color subpixels (R, G or B) or clusters of color subpixels (eg RG, GB or RGBR or other) or full color pixels, with full color pixels both white-blending Formations of RGB color subpixels, ie RGB triplets, as well as - depending on Imaging technology - actual Full color pixels - like about common in projection screens - meant are.

In further embodiments, on the parallax barrier screen ( 2 ) not only opaque and transparent, but also partially transparent surface portions may be provided.

The partially transparent area shares are preferably designed as neutral filters or grayscale filters, in particular for substantially wavelength-independent attenuation of the light intensity. Derlei Neutral filters or grayscale filters can be used, for example of so-called dithering methods exclusively be made using opaque and transparent surfaces. This means that the effect of a particular grayscale through the arrangement of only opaque defined by dithering Scored points, lines, lines or other patterns of small area will, without actually To use points or patterns of a certain gray level. The latter is particularly advantageous if the grayscale or neutral filter by exposure methods using only opaque or transparent dots or Can train lines, to be produced. In particular, a partially transparent area proportion within the meaning of the invention also by narrow alternately arranged opaque and transparent lines are formed.

Advantageous are the transparent and, if available, the semi-transparent area shares with parallel projection of the parallax barrier screen on the grid from picture elements x (i, j) the vertical direction of the grid of picture elements x (i, j) in Essentially around -90 ... +90 (including 0) degrees inclined, the inclination of zero degrees, of course, no true inclination, but corresponds to the vertical orientation.

For special Embodiments can partially transparent surface portions on the parallax barrier screen provided with at least two different degrees of transmission be.

The invention is of particular importance when at least one boundary line between two different but directly adjacent surface portions is formed at least in part with randomly formed geometric shapes. Theoretically, such a boundary line could be infinitely long, whatever However, because of the finite resolution in the production of the structure of the parallax barrier screen is practically unattainable.

usually imprisonment should be the angle which the said horizontal and vertical period length spans the said two-dimensional periodic pattern as a counter and ankate catheter, essentially the average angle of inclination a of the transparent and / or, if present, the partially transparent area proportions correspond to the vertical on the parallax barrier screen. This achieves the best channel separation in 3D display.

As in various other 3D rendering methods as well the views A (k) respectively different perspectives of a scene or of an object. The views A (k) can each still pictures or Correspond to moving picture sequences.

The Parameters for the parallax barrier screen can with the help of the two from the aforementioned Kaplan article known equations (1) and (2) are easily calculated. In order to All necessary relations between the distance s result between the grid of picture elements x (i, j) and the parallax barrier screen, the typically to 65 mm set average eye relief in humans, the viewing distance, the (horizontal) period length of the transparent (or semi-transparent) surface portions of the barrier as well the possible Strip width of said transparent or partially transparent surface portions. The stripe width can be opposite one so determined value also enlarged or be downsized.

As regards the period of the structure used on the parallax barrier screen, the following should also be noted:
The said horizontal and vertical period length of said two-dimensional periodic pattern (the arrangement of the views A (k) on the grid 1) should preferably be up to a correction factor y, where 0.98 <y <1.02, with the respective horizontal and vertical vertical period lengths of the transparent surface portions of the parallax barrier screen match. The horizontal or vertical period length of the transparent surface portions may optionally be understood to mean the average horizontal or vertical distance thereof.

in principle can but the semi-transparent and transparent area proportions also not strictly periodic be arranged on the parallax barrier screen, for example by varying the widths and / or the transmittance.

Prefers the transparent and, if available, the semi-transparent ones are sufficient area shares Continuously from one edge of the parallax barrier screen to one others.

• – ein Bildwiedergabegerät mit Bildelementen x(i, j) in einem Raster mit Zeilen i und Spalten j, auf welchen Bildteilinformationen verschiedener Ansichten A(k) mit k = 1, ..., n und n > 1 sichtbar gemacht werden können,
• – mindestens ein dem Raster mit Bildelementen x(i, j) im Abstand s vor- oder nachgeordneter Parallaxenbarriereschirm, welcher wenigstens opake und transparente Flächenanteile enthält,
• – so dass ein oder mehrere Betrachter auf Grund der Sichtbeschränkungswirkung durch den mindestens einen Parallaxenbarriereschirm jeweils mit beiden Augen zumindest teilweise unterschiedliche Bildelemente x(i, j) und/oder Teile davon sieht bzw. sehen, wodurch beide Augen jeweils zumindest teilweise unterschiedliche Ansichten A(k) wahrnehmen und damit ein räumlicher Seheindruck entsteht, wobei erfindungsgemäß
• – mindestens eine Begrenzungslinie zwischen zwei verschiedenartigen, jedoch unmittelbar aneinander angrenzenden Flächenanteilen nach Vorschrift einer Mandelbrot-Menge oder eines Fraktals geformt ist.

The object of the invention is further solved by an arrangement for spatial representation, comprising

• A picture display device with picture elements x (i, j) in a grid with lines i and columns j, on which partial picture information of different views A (k) with k = 1,..., N and n> 1 can be made visible,
• At least one parallax barrier screen, which contains at least opaque and transparent surface portions, at a distance s or subordinated to the grid with picture elements x (i, j),
• In such a way that one or more observers see or see at least partially different picture elements x (i, j) and / or parts thereof with the two eyes due to the visual confining effect by the at least one parallax barrier screen, whereby both eyes at least partially represent different views A ( k) perceive and thus create a spatial visual impression, according to the invention
• - At least one boundary line between two different, but immediately adjacent to each other surface portions is formed according to regulation of a Mandelbrot amount or a fractal.

to Mode of action of the arrangement according to the invention applies in principle also the more forward to the inventive method Said.

The Assignment of the image part information of different views A (k) to the picture elements x (i, j) is preferably carried out in a two-dimensional periodic pattern, with the period length in the horizontal and the vertical direction preferably does not exceed 32 pixels each x (i, j). In special applications, the image combination rule could to the shape of the transparent surface portions be adjusted.

Also Here, in the following, from initially only assumed a parallax barrier screen. The number of views For example, n may be 2, 3, 4, 5, 6, 7, 8, 9 or more. For example, if the number of views is A (k) n = 5, then the said horizontal period length can be 5 picture elements x (i, j) correspond; she does not necessarily have to.

Prefers, but not necessarily, the vertical period length is the same the number n of displayed views.

henceforth The picture elements x (i, j) correspond in each case to individual color subpixels (R, G or B) or clusters of color subpixels (eg RG, GB or RGBR or other) or full color pixels, with full color pixels both white-blending Formations of RGB color subpixels, ie RGB triplets, as well as - depending on Imaging technology - actual Full color pixels - like about common in projection screens - meant are.

Again, it may be advantageous if on the parallax barrier screen ( 2 ) not only opaque and transparent, but also partially transparent surface portions are provided.

The partially transparent area shares are preferably designed as neutral filters or grayscale filters, in particular for substantially wavelength-independent attenuation of the light intensity. Derlei Neutral filters or grayscale filters can be used, for example of so-called dithering methods exclusively be made using opaque and transparent surfaces. This means that the effect of a particular grayscale through the arrangement of only opaque defined by dithering Points, lines or other patterns of small area is achieved, without actually To use points or patterns of a certain gray level. The latter is particularly advantageous if the grayscale or neutral filter by exposure methods, which only opaque or transparent dots or train lines, to be produced.

Furthermore, on the parallax barrier screen ( 2 ) Partially transparent surface portions may be provided with at least two different degrees of transmission.

Prefers the transparent and, if available, the semi-transparent ones are sufficient area shares Continuously from one edge of the parallax barrier screen to one others.

Advantageous are the transparent and, if available, the semi-transparent area shares with parallel projection of the parallax barrier screen on the grid from picture elements x (i, j) the vertical direction of the grid of picture elements x (i, j) in Essentially around -90 ... +90 (including 0) degrees inclined, the inclination of zero degrees, of course, no true inclination, but corresponds to the vertical orientation.

The Invention acquires special significance if at least one boundary line between two different, but directly to each other adjacent area shares at least in part or completely with randomly formed shaped geometric shapes. Theoretically, this could be such a boundary line be infinitely long, which, however, because of the finite resolution at making the structure of the parallax barrier screen practical is unreachable.

usually imprisonment should be the angle which the said horizontal and vertical period length spans the said two-dimensional periodic pattern as a counter and ankate catheter, essentially the average angle of inclination a of the transparent and, if present, also the partially transparent area shares correspond to the vertical on the parallax barrier screen. This achieves the best channel separation in 3D display.

The Views A (k) can each different perspectives of a scene / an object correspond. Furthermore can the views A (k) be still pictures or moving picture sequences.

For example is the number of views A (k) equal to 5 or 8 and the said horizontal period length corresponds to 5 or 8 pixels x (i, j).

The Image display device preferably a color LCD screen, a plasma display, a projection screen, an LED-based screen, an SED screen, or a VFD screen be.

henceforth can be at least a partially transparent surface portion on the parallax barrier screen gradual or continuous changes in transmittance exhibit. Also this expression allows, for example, to dampen moiré effects.

Advantageous the parallax barrier screen consists of a glass substrate which at the back the barrier structure is applied. The said barrier structure is, for example, an exposed and developed photographic Movie, the back is laminated to the glass substrate, wherein preferably the emulsion layer of the photographic film to the glass substrate. Alternatively, the opaque ones Regions of the barrier structure by applied to the glass substrate Color or pigments are formed (eg by imprint or coating).

henceforth contains the parallax barrier screen advantageously means for reducing of stray light reflections, preferably at least one interference-optical antireflection coating. It can but also usual Antiglare mattings are used.

The parallax barrier screen is permanently attached to the image display device by means of a spacer, for example glued or screwed.

As regards the period of the structure used on the parallax barrier screen, the following should also be noted:
The said horizontal and vertical period length of said two-dimensional periodic pattern (the arrangement of the views A (k) on the grid 1 ) should preferably coincide with the respective horizontal and vertical period lengths of the transparent area portions of the parallax barrier screen except for a correction factor y, where 0.98 <y <1.02. The horizontal or vertical period length of the transparent surface portions may optionally be understood to mean the average horizontal or vertical distance thereof.

The Invention will be explained below with reference to exemplary embodiments. The drawings show:

1 to 5 a scheme for the creation of the boundary lines between two different surface portions of a parallax barrier screen,

6 the schematic structure of a parallax barrier screen for use in the method according to the invention,

7 the schematic structure for implementing the method according to the invention,

8th an exemplary combination of images for the views A (k) on the grid x (i, j), as well as

9 Visual examples of a first observer eye on the basis of the conditions of 6 and 8th ,

All Drawings are not to scale. This especially concerns angle measurements.

Starting from 1 an exemplary scheme for the generation of a parallax barrier screen relevant to the invention will be discussed. Here is first a straight line, in other words to see a straight line, which is symbolic of the boundary line between two different, but immediately adjacent surface areas. Such two different surface portions are in most cases an opaque and a transparent area fraction.

As in 2 a triangle is now inserted, whose basis according to 3 Will get removed. Now triangles are inserted in a similar way on all remaining sub-lines, as in 4 shown. Again, the base is removed. The principle can generally be further driven, similar to a Mandelbrotmenge or a fractal.

The implementation of an in 5 defined boundary line between two different, but immediately adjacent surface portions back to a parallax barrier screen 2 is cut in 6 shown.

There, at least one boundary line between two different but directly adjacent surface portions (ie, between an opaque and a transparent area portion) has a length that is greater than the sum of the height of the parallax barrier screen 2 and the average distance measured in the horizontal direction of the upper end and the lower end of a transparent surface portion.

The 7 shows the schematic structure for implementing the method according to the invention for the spatial representation. On the grid 1 From picture elements x (i, j) with lines i and columns j, picture part information of different views A (k) with k = 1,..., n and n> 1 is made visible, as an example and as a section in FIG 8th shown.

The grid 1 with pixels x (i, j) at a distance s is a parallax barrier screen 2 upstream or downstream, which contains at least opaque and transparent surface portions, as in 7 you can see.

According to the invention, at least one boundary line between two different but directly adjacent surface portions has the shape of a fractal. This is in 6 illustrated.

Due to the visual confinement effect by the at least one parallax barrier screen 2 see or see one or more viewers 3 each with two eyes at least partially different picture elements x (i, j) and / or parts thereof, whereby both eyes each perceive at least partially different views A (k) and thus creates a spatial visual impression. For a viewer's eye this is in 9 indicated.

In the method according to the invention, the arrangement of the partial image information of different views A (k) on the grid of pixels x (i, j) advantageously takes place in a two-dimensional periodic pattern, as in FIG 8th (partial) indicated. Here, the number of views is n = 5. The horizontal period length of the aforementioned periodic pattern is equal to the number n = 5 of the views shown. Other numbers than n = 5 are of course possible, for. B. n = 8 or n = 9th

Furthermore, the picture elements x (i, j) respectively correspond to individual color subpixels (R, G or B), in which case the raster can 1 be realized for example by a color LC display. Other embodiments, for. B. with the help of OLEDs, are possible.

The angle b (s. 8th ) which spans said horizontal and vertical period length of said two-dimensional periodic pattern as the counter and adjacent dent, substantially the average inclination angle a of the transparent area portions on the parallax barrier screen 2 opposite the vertical (s. 6 ), This achieves the best channel separation in 3D display.

at lateral movement of the viewer eye pair thus is a smooth transition guarantees the views.

The parameters for the parallax barrier screen 2 can be easily calculated with the aid of the two equations (1) and (2) known from the aforementioned Kaplan article. This yields all the necessary relations between the distance s between the grid of picture elements x (i, j) and the parallax barrier screen, which typically (but not in every case) is 65 mm average human eye distance, the viewing distance (horizontal) Period length of the transparent or partially transparent surface portions of the barrier and the possible strip width of said transparent or partially transparent surface portions.

To the period of the parallax barrier screen 2 In addition, the said horizontal and vertical period length of the said two-dimensional periodic pattern (the arrangement of the views A (k) on the grid 1) should preferably be up to a correction factor y, where 0.98 <y <1, 02, with the respective horizontal and vertical period lengths of the transparent area portions of the parallax barrier screen 2 to match. The horizontal or vertical period length of the transparent surface portions may optionally be understood to mean the average horizontal or vertical distance thereof.

The above explanations of the method according to the invention in conjunction with the drawings 1 to 9 apply mutatis mutandis to arrangements according to the invention, wherein the grid 1 by a picture display device, such as a color LCD display, is configured.

A corresponding control unit, such as a PC with software for the image display device is self-explanatory present and not included in the drawings for reasons of triviality.

The Advantages of the invention are versatile. In particular, allow that inventive method and the corresponding arrangements an autostereoscopic view based on the barrier technology, while for multiple viewers an improved perceptibility, especially by diminished Moiré effects is achieved, what desired was.

The Invention can be done with relatively simple Means be realized. Furthermore it succeeds in fortune of the invention, exposure moiré effects occurring in the prior art (due to the finite resolution of imagesetters) in the preparation of parallax barrier screens to lessen or completely avoid.

Claims (20)

Method for spatial representation in which - on a grid ( 1 ) from picture elements x (i, j) with lines (i) and columns (j) image part information of different views A (k) with k = 1, ..., n and n> 1 are made visible, and 1 ) from picture elements x (i, j) at a distance s at least one parallax barrier screen ( 2 ), which contains at least opaque and transparent surface portions, so that one or more observers ( 3 ) due to the visual restriction effect by the at least one parallax barrier screen ( 2 ) sees and / or sees at least partially different picture elements x (i, j) and / or parts thereof with both eyes, whereby both eyes perceive at least partially different views A (k) and thus create a spatial visual impression, characterized in that at least one boundary line between two different, but immediately adjacent surface portions is formed according to the regulation of a Mandelbrot amount or a fractal. A method according to claim 1, characterized in that the arrangement of the image part information of different views A (k) on the grid ( 1 ) is made of picture elements x (i, j) in a two-dimensional periodic pattern, wherein the period length in the horizontal and vertical directions preferably comprises no more than each 32 picture elements x (i, j). Method according to one of the preceding claims, characterized in that the picture elements x (i, j) correspond to color subpixels (R, G or B) or clusters of color subpixels or full color pixels chen. Method according to one of the preceding claims, characterized in that on the parallax barrier screen ( 2 ) Not only opaque and transparent, but also partially transparent surface portions are provided, which are designed as grayscale filters. Method according to claim 4, characterized in that that the grayscale filters using so-called dithering method exclusively formed using opaque and transparent faces are. Method according to claim 5, characterized in that that the said opaque and transparent faces scored points or lines are. Method according to one of the preceding claims, characterized in that on the parallax barrier screen ( 2 ) Partially transparent surface portions are provided with at least two different degrees of transmission. Method according to one of the preceding claims, characterized in that the transparent and, if present, the partially transparent surface portions in parallel projection of the parallax barrier screen ( 2 ) on the grid ( 1 ) of picture elements x (i, j) with respect to the vertical direction of the grid ( 1 ) are tilted from pixels x (i, j) by -90 ... +90 (including 0) degrees. Method according to one of claims 2-8, characterized in that the angle which spans said horizontal and vertical period length of said two-dimensional periodic pattern as counter and adjacent dents, the average inclination angle a of the transparent and / or, if present, the partially transparent Area proportions on the parallax barrier screen ( 2 ) corresponds to the vertical. Method according to one of the preceding claims, characterized characterized in that the views A (k) each have different perspectives correspond to a scene / object. Arrangement for spatial representation, comprising - a picture display device with picture elements x (i, j) in a grid ( 1 ) with rows (i) and columns (j) on which partial image information of different views A (k) with k = 1, ..., n and n> 1 can be made visible, - at least one of the grid ( 1 ) with pixels x (i, j) at a distance s upstream or downstream parallax barrier screen ( 2 ), which contains at least opaque and transparent surface portions, so that one or more observers ( 3 ) due to the visual restriction effect by the at least one parallax barrier screen ( 2 ) each with two eyes at least partially different picture elements x (i, j) and / or parts thereof see or see, whereby both. Eyes at least partially different views A (k) perceive and thus creates a spatial visual impression, characterized in that - at least one boundary line between two different, but immediately adjacent to each other surface portions according to Mandelbrot amount or a fractal is formed. Arrangement according to claim 11, characterized in that the arrangement of the image part information of different views A (k) on the grid ( 1 ) is made of picture elements x (i, j) in a two-dimensional periodic pattern, wherein the period length in the horizontal and vertical directions preferably comprises no more than each 32 picture elements x (i, j). Arrangement according to one of Claims 11-12, characterized the picture elements x (i, j) are color subpixels (R, G or B) or clusters of color subpixels or full color pixels. Arrangement according to one of claims 11-13, characterized in that on the parallax barrier screen ( 2 ) Not only opaque and transparent, but also partially transparent surface portions are provided, which are designed as grayscale filters. Arrangement according to claim 14, characterized that the grayscale filters using so-called dithering method exclusively formed using opaque and transparent faces are. Arrangement according to claim 15, characterized that the said opaque and transparent faces scored points or lines are. Arrangement according to one of claims 11-16, characterized in that on the parallax barrier screen ( 2 ) Partially transparent surface portions are provided with at least two different degrees of transmission. Arrangement according to one of claims 11-17, characterized in that the transparent and, if present, the partially transparent surface portions in parallel projection of the parallax barrier screen ( 2 ) are inclined to the raster of pixels x (i, j) from the vertical direction of the raster of pixels x (i, j) by -90 ... +90 (including 0) degrees. Arrangement according to one of claims 11-18, characterized in that the angle which spans said horizontal and vertical period length of said two-dimensional periodic pattern as counter and Ankathete, the average inclination angle a of the transparent and, if present, the partially transparent surface portions on the parallax barrier screen ( 2 ) corresponds to the vertical. Arrangement according to one of claims 11-19, characterized that the image player a color LCD screen, a plasma display, a projection screen, an LED-based screen, an SED screen, or a VFD screen is.

Images