EP2561682A1

EP2561682A1 - Simultaneous reproduction of a plurality of images by means of a two-dimensional imaging matrix

Info

Publication number: EP2561682A1
Application number: EP11717221A
Authority: EP
Inventors: Johannes Sigwart
Original assignee: Tridelity AG
Current assignee: Tridelity AG
Priority date: 2010-04-23
Filing date: 2011-04-20
Publication date: 2013-02-27
Also published as: DE102010018083B4; CN103039079B; US20130038512A1; DE102010018083A1; RU2012149790A; CA2795955A1; CN103039079A; RU2576481C2; WO2011131743A1

Abstract

The invention relates to an image reproduction arrangement for simultaneous reproduction of a plurality of images (1-5), wherein - the arrangement has a two-dimensional imaging matrix (V) by means of the matrix elements (R, G, B) which are arranged in rows and columns, of which the images can be represented, - the arrangement has an optical device (D) which is designed to in each case prevent observation of parts of the images (1-5), which are represented by the imaging matrix (V), from corresponding viewing angle ranges, such that in each case one of the images (1-5) can be seen from the viewing angle ranges, - the optical device (D) defines a direction (L) in the surface of the imaging matrix (V) which runs parallel to edges of such areas of the imaging matrix (V) which can be seen or cannot be seen from the viewing angle ranges, - straight lines which run in the direction (L) and intersect columns of the imaging matrix (V) at a smaller angle than the lines of the imaging matrix, - the image reproduction arrangement is designed such that the imaging matrix (V) of at least one of the images (1-5) represents blocks (Raa-Yha) of matrix elements (R, G, B) which are separated from one another in the row direction and column direction of the imaging matrix (V) by other matrix elements (R, G, B) which are not used to represent this image, - the blocks (Raa-Yha) each have matrix elements (R, G, B) which follow one another in the column direction, - in the blocks (Raa-Yha), the overall height of the matrix elements (R, G, B) which follow one another in the column direction is in each case greater than the width of the matrix elements (R, G, B) to be defined in the row direction.

Description

Simultaneous reproduction of a plurality of images by means of a two-dimensional

Image drawing matrix

The invention relates to a picture display device for the simultaneous reproduction of a plurality of pictures, wherein the arrangement has a two-dimensional Bilddarstellungs- matrix, through which arranged in rows and columns matrix elements, the images can be displayed. The invention further relates to a method for the simultaneous reproduction of a plurality of images by means of such a two-dimensional image

Image drawing matrix. Moreover, the invention relates to a method for producing such a picture display device. The invention also relates to a digital image data set for the simultaneous reproduction of a plurality of images on a two-dimensional image representation matrix.

In particular, the invention relates to the field of autostereoscopic display of images. For example, DE 697 18 534 T2 describes an autostereoscopic

Display device, wherein a matrix display panel individually addressable

Having display elements, which are arranged in aligned rows and perpendicular columns. A lens plate extends substantially parallel to the plane of the display panel. It has an array of elongated, parallel lens elements so that individual images represented by the display panel are perceptible to the viewer's left and right eyes. When the image for the left eye and the image for the right eye correspond to the natural viewing angles when viewing an object or a scene, the viewer perceives the representation generated on the display plate as a three-dimensional representation. According to the document, however, not only two images but more than two images, e.g. six pictures, shown. If the viewer changes the viewing angle under which he views the image display panel, he can therefore view other images through the lens arrangement with his right and left eyes. Thereby the different matrix elements, i. the

Display elements according to DE 697 18 534 T2, each used only for the representation of one of the images. The longitudinal axes of the lenses define a direction in the plane of the display panel which intersects the columns at a substantially smaller angle than the lines. Is about the next adjacent column direction

Searched matrix element, which is used to represent the same image, this next adjacent matrix element is not found exactly in the column direction, but offset by one column in the next but one line. The orientation of the

Lens assembly is tuned to the use of the matrix elements so that the longitudinal axes of the lens elements define a direction which lies in the plane of the display panel and, for example. intersects the upper left corners of the next adjacent matrix elements which are offset by one column per two lines. An advantage of this tilt of the lens longitudinal axis against the column direction is a better ratio of horizontal resolution (in the row direction) to vertical resolution (in the column direction). If six images were represented by the fact that in each case all matrix elements of a column are used for the representation of the same image, the resolution would be optimal in the vertical direction. However, in the horizontal direction, the resolution would be only one-sixth the resolution of the image display matrix. The impression that results from such a resolution ratio, which is very different from one to the observer, is undesirable. The viewer would notice the different resolutions and get the impression of poor image quality in the line direction.

The offset of the next adjacent pixel by one column and two lines improves the resolution in the horizontal direction and on the other hand, it deteriorates in the vertical direction. As a result, the ratio of horizontal to vertical resolution is closer to one.

A disadvantage of the use of the matrix elements according to DE 697 18 534 T2, however, is that matrix elements are required which are larger in the column direction than in the row direction. In commercial image representation matrices for displaying color images, this is usually the case in the so-called landscape mode, in which the line length is greater than the column length, the case, since three consecutive in the row direction matrix elements typically each have a matrix element of each of the three primary colors red, blue, green exhibit. The total width of the native matrix element is usually approximately equal to the height of the individual color matrix elements and thus also equal to the height of the native matrix element. Because of this elongated design of the individual

Color elements, it is not possible to use an image display matrix with the in

DE 697 18 534 T2 described method for displaying images instead of in

To use landscape mode in portrait mode, ie rotate the image display matrix 90 ° around its surface normal and display the images with this rotated orientation of the matrix. It is an object of the present invention, a picture display device of the type mentioned, a method for reproducing a plurality of images of the type mentioned, a manufacturing method for producing a

Specify image display device and an image data set that allow simultaneous display of images on the same image display matrix, even if from the viewpoint of the viewer or with respect to the image orientation, the matrix elements in the line direction are longer than in the column direction.

According to a basic idea of the present invention, matrix elements of the

Image presentation matrix, which follow one another in the column direction, used for the representation of the same image. Such successive matrix elements form a block consisting of several matrix elements. The respective image to be displayed therefore does not consist of individual matrix elements which adjoin matrix elements of other images both in the row direction and in the column direction, but is represented by blocks of matrix elements which have a plurality of successive matrix elements in the column direction. However, the blocks are separated from other blocks in the row direction and column direction to represent the same image.

Between the blocks used to represent the same image are matrix elements that are not used to represent the same image.

Preferably, these matrix elements, which are not used to display the same image, are also used in blocks for displaying other images. However, they can also be used only to represent a base color (e.g., white or gray).

In particular, the following is proposed: A picture display device for simultaneously reproducing a plurality of pictures, wherein

the arrangement has a two-dimensional image display matrix, by means of which the matrix elements arranged in rows and columns can be displayed,

- The arrangement comprises an optical device which is designed, from

each viewing angle to prevent viewing of parts of the images represented by the image display matrix, so that from the

Viewing angle ranges of each of the images is recognizable,

by the optical device, a direction is defined in the surface of the image representation matrix which runs parallel to edges of those regions of the image representation matrix which are recognizable or not recognizable from the viewing angle regions, straight lines running in the direction intersect the columns of the image presentation matrix at a smaller angle than the lines of the image presentation matrix,

- The image display device is designed so that the image display matrix at least one of the images (eg all of the images) in blocks (preferably, except possibly at the edge of the matrix, only in blocks) of matrix elements representing in the row direction and Column direction of the image presentation matrix are separated from each other by other matrix elements not used for the representation of this image,

the blocks each have successive matrix elements in the column direction,

- In the blocks in each case the total height of the successive matrix elements in the column direction is greater than the width to be determined in the row direction

Matrix elements.

As mentioned, the optical device (by preventing the viewing of parts of the images represented by the image-forming matrix) makes one of the images recognizable from a certain angle of view. However, this does not mean that only matrix elements representing the one image are visible from the perspective. Rather, at least partially, other matrix elements may be visible from the viewpoint. Examples will be discussed in more detail.

The optical device may be, for example, the lens arrangement known from DE 697 18 534 T2 (eg lens plate). Alternatively, instead of lenses, for example, prisms may be used to allow viewing of discrete areas, the same elongated areas that are slightly inclined to the column direction, only from certain angles. Another preferred embodiment of the optical device is an array of slots, the slots being in a plane parallel to each other, the plane being parallel to the plane of the two-dimensional imaging matrix, and allowing viewing of the matrix elements of the matrix only through the slots. On the other hand, there are areas between the slits which are opaque or through which at least much less light passes than through the slits. Such a slot arrangement is made, for example, by applying a layer of opaque material to a transparent support plate. The layer of opaque material covers the areas between the slots. As with the elongated lenses, which are known in principle from DE 697 18 534 T2, also defines such a slot arrangement one direction, namely the direction of the edges of the slots or the direction of the center axes of the slots and thus the edges of the visible areas of the Matrix. If one looks at a straight line that runs in the area of the image representation matrix in this direction, ie parallel to the edges of the Slots or the longitudinal axes of the lenses or prisms runs, then defines this straight line at least a portion which is parallel to an edge of a recognizable from a certain angle range of the image display matrix or forms this edge itself. Where exactly the edge of a recognizable area of

Depiction matrix runs in the plane of the matrix depends on the viewing angle. At each viewing angle, however, the edges always run in the same direction defined by the optical device.

Furthermore, the optical device is tuned to the individual images that are displayed on the image display matrix such that in each case one of the images is recognizable from the different viewing angles or viewing angle regions. In other words, the viewer looks with each eye through each of the elongated ones

Lens elements, through each of the elongated prisms or through each of the elongated slots predominantly matrix elements that represent a particular image. "Predominantly" is to be understood that through the lenses, prisms or slits also a surface portion of the image display matrix is recognizable, which is formed by matrix elements that are used for the representation of another image or for displaying no image or unused are. Preferably, however, the predominant

Area fraction used to represent the particular image is at least 40% of the elongated strip area visible through the lens, prism, or slot. This is especially true when the strip is viewed from the best possible angle of view within a viewing angle range from which the image can be viewed. It is further preferred that at this best possible angle of view the proportion of the area of the particular image relative to any other visible image is greater than 65%. This is achieved in particular if the

Slot width (measured in the row direction) in an array of slots (which forms the optical device) is 50% of the width of a matrix element. More generally, the width of the stripe-shaped visible areas measured in the line direction is 50% of the width of a matrix element. Another optical device (for example a lens arrangement or an arrangement of prisms) can also be designed in this way. If the width of the recognizable strip-shaped areas is greater, the proportion of the area of the picture on the recognizable area decreases. This is because, in addition to the matrix elements that are used to display the image, matrix elements that are used to display other images are also visible in the line direction. If the width of the recognizable strip-shaped regions is smaller, the light intensity of the image to be displayed decreases. As mentioned, straight lines run in the direction or parallel to the edges of the recognizable due to the optical device strip-shaped areas of

Image drawing matrix. The straight lines intersect the columns of the

Image presentation matrix at a smaller angle than the lines of the image presentation matrix. In other words, the straight lines and thus also the edges of the recognizable areas are only slightly inclined to the column direction. Examples and embodiments of the arrangement of the blocks will be discussed in more detail. From this arrangement of the blocks, the angle at which the edges of the recognizable regions intersect the column direction or columns in the plane of the image representation matrix results.

Here, in relation to the column direction small cutting angle basically has the advantage over larger cutting angles that the various on the

Image display matrix displayed better separated images

can be perceived since the area fraction of the image to be viewed from a certain angle with respect to areas which do not belong to the image at steeper gradients, i. smaller cutting angles, larger. On the other hand, too small an angle of intersection is also not optimal, since with commercially available image display matrices (also called display or screen), between adjacent columns of matrix elements are areas which can not be used to display images. These areas can form a large proportion of the recognizable strip-shaped areas at certain angles with a small angle of intersection. From these particular angles, the respective image therefore has a weak contrast to the background or surroundings.

As mentioned, the individual blocks extend in the column direction over a plurality of successive matrix elements. The length of the individual blocks in the column direction is therefore defined by the number of successive column-direction matrix elements forming the block. As a result, the total height of the block is also defined in the column direction. According to the invention, this total height is greater than the width of the matrix elements to be determined in the row direction. In this way, even with matrix elements which are longer in the row direction than in the column direction, a representation of images take place whose height is assigned to the column direction and whose width is assigned to the row direction. In commercial two-dimensional

Imaging matrices such as LCD displays, plasma displays, matrices From light-emitting diodes, in particular organic light-emitting diodes or other commercially available image representation matrices, this is usually the case in the so-called portrait mode of the case in which the total width of the display in the row direction is smaller than the total height in the column direction. The invention therefore makes it possible in a simple manner to use commercially available displays, which could hitherto only be used in landscape mode for the simultaneous display of several images, in the portrait mode for this purpose as well.

The image display device may, in various ways, have the property of recognizing the blocks recognizably in the manner according to the invention. On the one hand, the optical device, as already described, must be matched to the blocks and their distribution via the image presentation matrix. A criterion for the suitability or

Adaptation of the optical device to the block representation has already been mentioned, namely that in the strip-shaped, recognizable regions predominantly (at least with respect to individual other images) matrix elements of the blocks should be recognizable, which serve to represent a specific image. Criteria that apply specifically to certain designs are described in more detail. Except the optical one

However, means suitably arranged relative to the two-dimensional image display matrix still require the image display device

Characteristics or at least one more feature to the blocks in the

represent way according to the invention. This feature may be the entirety of the images displayed simultaneously on the image display device. The

The entirety of the images is defined by the corresponding overall image data set, which assigns the individual blocks to the respective blocks. However, the totality of the images can also be defined by the overall signal with which the matrix elements of the image representation matrix are activated in order to use the blocks in the manner according to the invention for the representation of images. Yet another possibility for such a feature is an image processing device which generates the image data set and / or the overall control signal from a plurality of images to be displayed at the same time.

In particular, the image display matrix can be a matrix of color matrix elements of three primary colors, wherein the colors change cyclically in the column direction, so that in each case three columnar direction successive matrix elements have a matrix element of each of the three primary colors. In particular, in such a color matrix, it is preferable that the number of column array consecutive matrix elements in each block is not divisible by three and not by fractions by three. The number The successive matrix elements in the column direction are therefore not equal to 3, 6, 9, 12, etc. This results in blocks which do not have the same number of color matrix elements of the three primary colors. For example, a blue element is less present than red and green elements or there is a green element more present than red and blue, etc. However, this results in a regular

Arrangement of color matrix elements within the image display matrix and with regular arrangement of the blocks relative to one another that the excess or deficiency of matrix elements in the individual blocks is formed by matrix elements of other colors. For example, In the case of adjacent blocks, which are next to each other in the direction defined by the optical device, the color of the matrix element which forms the excess or shortage alternates, respectively. Are e.g. three red ones

Elements, three blue and two green elements present, i. the green elements constitute the deficit, e.g. at the next adjacent block the deficit is formed by the red or blue elements. In the next adjacent block in the same direction then the deficit is formed by the color that has not formed the deficit in the two preceding blocks. For the excess, corresponding, i. when a color is the surplus instead of the surplus.

An advantage of the non-remainder and not fractional by three divisible number of column array consecutive matrix elements is that, at all viewing angles under which the blocks can be viewed, the totality of the blocks avoids color distortions in the presentation of the image. If the total number of column-sequential elements were divisible by three, color falsification would result for each block at certain angles, since the individual matrix elements would not be recognizable at full area. Follow e.g. nine color matrix elements cyclic in the column direction, beginning with red, subsequently green, subsequently blue, e.g. From certain angles, a smaller portion of the uppermost red element and a smaller portion of the area of the lower blue element may be discernible. Therefore, an excessively large area of the green areas will be recognizable, so that a green shift of the image takes place. In addition, if the blocks are arrayed regularly on all blocks, this will result in the same color shift (e.g., green shift) in the same way. If, on the other hand, the individual blocks for displaying the same image have different color surpluses or color defaults, and therefore each have the top and bottom

The color element of the blocks does not have the same color for all blocks, is indeed true a color shift takes place for each block, but this is different for the different blocks and therefore compensates each other as a whole. With sufficient surface area of the matrix elements and with a sufficiently large number of the matrix elements used overall for the representation of an image, the color shift of the individual blocks is no longer recognizable.

Further, it is preferable that the number of matrix-adjacent matrix elements in each block is 7 or greater, preferably 8. This applies in particular if the height of the individual matrix elements in the column direction is about one third of the width of the matrix elements in the row direction, as is the case with

square native matrix elements with three color matrix elements of the three

Basic colors is the case.

As mentioned above, the orientation of the optical device, i. the

Direction defined by the optical device, namely the direction of the edges of each recognizable from certain angles areas, the

Dimensions of the blocks and their arrangement relative to each other. Regardless of how the blocks for displaying the same image in the successive rows are offset in the column direction (an offset in the column direction is mandatory since the total height of the respective blocks is smaller than the total height of the column-direction matrix), an overall height of the blocks of FIG or more matrix elements to a relatively steep alignment of the edges of the recognizable areas, ie too small cutting angles of the edges with the column direction. This, in turn, has the advantage that the various images displayed on the matrix are well distinguishable from each other.

In particular, if the height of the individual matrix elements is about one third of their width, the upper limit for the number of successive column elements in the row matrix elements of a block is the value 14, particularly preferably 1 1. If more consecutive pixels are combined into one block, the

Intersection angle of the edges of the recognizable regions and the column direction too small and may, as already mentioned above, come to the fact that separation surfaces between adjacent columns of the matrix elements are visible with too large an area fraction. The blocks may be used to define block rows whose row direction is parallel to the row direction of the matrix rows and whose row height is equal to the total height of the matrix elements of the respective block that are adjacent to one another in the column direction. All blocks are in one of the block lines defined in this case. Preferably, there are no blocks starting in the column direction in one of the block lines and ending in another block line. Also, if the blocks are just each

Matrix elements of a column of the image representation matrix (i.e.

Matrix elements of adjacent columns), it is preferred that in the direction defined by the optical device (eg, the direction of an edge of a recognizable region) adjacent blocks used to represent the same image be one column of the image presentation matrix per two

Row heights of the block rows are offset from each other. In other words, the next adjacent block is two block rows lower by one column offset or two block row heights higher and also one column, but offset in the other direction. As mentioned above, this, together with the total height of the blocks in the column direction, defines the course of the edges of the recognizable areas when the optical device is aligned (as preferred) accordingly. For example, The edge of a visible area or a parallel to it intersects each of the consecutive blocks in the upper left corner of the respective block. More specifically, when the width of the individual color elements is about one-third of their height, and when the number of columnar-directional matrix elements in each block is at least 7 and at most 14 (more preferably 1 1), the offset by one column per two block line heights becomes one optimal alignment of the recognizable areas available.

In such an offset, it is further preferred that an odd number of images be displayed simultaneously on the image presentation matrix, at least 3, preferably at least 5 images, and that each image be represented by blocks of the same offset by one column per two block line heights. It is further preferred that there are blocks for displaying all images in each of the block lines. In the line direction, the blocks for displaying the various images follow cyclically, e.g. Picture 1, 3, 5, 2, 4, 1 ...

In principle, all types of matrix displays or matrix screens are suitable as a two-dimensional image presentation matrix, for example the types mentioned above. Furthermore, the two-dimensional image display matrix but also a matrix for Be projection projection of images. For example, a liquid crystal matrix (LCD matrix) can be irradiated by projection light, so that the transmission properties of the individual matrix elements define the image to be displayed.

The scope of the invention also includes a method for the simultaneous reproduction of a plurality of images by means of a two-dimensional image display matrix, through whose array elements arranged in rows and columns the images are displayed, in particular a method for operating the

Image display device is, in one of the embodiments, in this

Description will be described. there

an optical device is used and the images are read by the

Imaging matrix shown that the optical device from respective viewing angle areas each a consideration of parts of the. By the

Image display matrix displayed images and prevents from the

Viewing angle ranges of each of the images is recognizable,

the optical device defines a direction in the surface of the image display matrix which runs parallel to edges of those regions of the image representation matrix which are recognizable or not recognizable from the viewing angle regions,

- Cut straight lines that run in the direction of the columns of the

Image presentation matrix at a smaller angle than the lines of

Image drawing matrix,

the images are represented by the image representation matrix in such a way that the

Image representation matrix represents at least one of the images in blocks of matrix elements, which in the row direction and column direction of the image display matrix from each other by other, not used for the representation of this image

Matrix elements are separated,

the blocks each have successive matrix elements in the column direction,

- is in the blocks in each case the total height of each other in the column direction

following matrix elements greater than the width of the matrix elements to be determined in the row direction.

Advantages and embodiments of the picture display device have already been discussed. These apply mutatis mutandis to the method for reproducing a plurality of images. In particular, image display matrices with color matrix elements of the three primary colors can be used and in this case it is preferred that the number of matrix elements adjacent to one another in the column direction in each block is not divisible without remainder and not without fractions by three. Furthermore, it is preferred that the number of matrix elements consecutive in the column direction per block is equal to or greater than 7, and is preferably 8 and / or less than or equal to 14 (particularly preferably 11). It is further preferred that the blocks are offset by one column per two block row heights, as described above.

Further included within the scope of the present invention is a method of manufacturing a picture display device for simultaneously displaying a plurality of pictures, the method comprising:

Providing a two-dimensional image representation matrix, by means of which the matrix elements arranged in rows and columns can be displayed,

- Providing and arranging an optical device such that from

Viewing portions of a portion of the images represented by the image display matrix is prevented, so that from the

Viewing angle ranges each one of the images is recognizable, so that by the optical device, a direction in the surface of the image display matrix is defined, which is parallel to edges of those areas of the image display matrix, which are visible or unrecognizable from the viewing angle areas, and so straight lines running in the direction intersect the columns of the image presentation matrix at a smaller angle than the lines of the image presentation matrix,

- Providing a two-dimensional digital image data set or providing a processing device for processing a two-dimensional digital

Image data set such that, in operation of the image display device, rows and columns of the two-dimensional image data set are represented by respective rows and columns of the image presentation matrix and so that at least one of the multiple images is represented in blocks of matrix elements which are different in row direction and column direction of the image presentation matrix , are not used for the representation of this image used matrix elements, wherein the blocks each have in the column direction consecutive matrix elements and wherein in the blocks in each case the total height of the successive column direction matrix elements is greater than the width to be determined in the row direction

Matrix elements.

The advantages and embodiments of the manufacturing method will become apparent from the description of the image display device. In particular, the digital image data set has the property or prepares the rendering arrangement for the two-dimensional digital image data set such that the number of consecutive matrix elements in each block is not divisible by three, and not by fractions, in each block. Furthermore, in turn, the number of successive matrix elements in the column direction is preferably equal to or greater than 7, and in particular equal to 8 and / or less than or equal to 14 (particularly preferably 11). Again, it is again preferred that the blocks are offset by one column per two block lines in the manner described above.

Not least belongs to the scope of the invention, a digital image data set for playback on a two-dimensional image display matrix, arranged in rows and columns matrix elements, the pixels of the image data set and thereby the images can be displayed, wherein

the image data set comprises a plurality of images which are to be reproduced simultaneously on the image presentation matrix,

- The pixels of each of the plurality of images are arranged in blocks of pixels in the row direction and column direction of the image data set and thus also in the representation of the image display matrix by other, not for the

Representation of this image used pixels or matrix elements are separated,

the blocks each have successive pixels or matrix elements in the column direction,

- In the blocks in each case the total height of the successive columns in the column direction pixels or matrix elements is greater than the width to be determined in the row direction of the pixels or matrix elements.

The image data record already contains the use according to the invention of blocks with pixels succeeding one another in the column direction for the display of individual images. Furthermore, the scope of the invention includes an image processing device for processing a two-dimensional digital image data record which has the properties of the previously defined digital image data set or the properties of one of its digital image data sets

Embodiments, which will be discussed briefly.

Preferably, the image data set defines a matrix of color pixels of three primary colors, wherein the colors change cyclically in the column direction, so that in each case three in

Column direction consecutive pixels have a pixel of each of the primary colors. In this case, it is further preferred that the number of in the column direction each other neighboring pixels in each block is not divisible without remainder and not without fractions by three. The benefits of this have already been discussed.

Furthermore, it is also preferable for the image data set that the number of pixels adjacent each other in the column direction in each block is 7 or more, and is preferably 8 and / or less than or equal to 14 (particularly preferably 1 1).

It is further preferred that the blocks define block rows whose row direction is parallel to the row direction of the pixel rows and whose row height is equal to the row row

Total height of the column-sequential pixels of the respective block, the blocks each containing only pixels of a column of the image data set, in a direction oblique to the column direction and intersecting the columns of the image data set at a smaller angle than the rows of the column

An image data set, adjacent blocks formed by pixels of the same image offset by one column of the image presentation matrix per two line heights of the block lines.

Embodiments of the invention will now be described with reference to the accompanying drawings. The individual figures of the drawing show:

1 shows the assignment of the individual matrix elements of an image display matrix to the images which are displayed simultaneously, wherein the representation in FIG. 1 can also be interpreted as a digital image data record, FIG.

Fig. 2 of the better recognizability because of an enlarged section of the

Representation in Fig. 1,

3 shows an arrangement for recording a plurality of images of an object from different viewing angles and for generating a corresponding digital image data record for the simultaneous display of the images on an image display matrix.

Fig. 4 shows schematically a side view of a two-dimensional

Image display with a slit mask, which depends on

Viewing angles in each case only the viewing of strip-shaped areas the matrix allows, in accordance with the shape, size and arrangement of the slits of the slit mask relative to the matrix display,

FIG. 5 shows the image representation matrix of FIG. 1, but with the image shown in FIG

Top view also parts of a slot arrangement are recognizable, which is located in the viewing direction in front of the plane of the image display matrix, and

Fig. 6 shows the arrangement of Fig. 5 from a different angle, so that other strip-shaped areas in the plane of the image display matrix can be seen through the slots of the slot arrangement.

Fig. 1 shows an image display matrix V. This is a greatly magnified view that reveals only a portion of the matrix elements found in a matrix to be used in practice. In the illustrated case, the matrix V 1 has 1 columns and 30 rows. In practice, (in landscape format) e.g. in the fill HD format, there are 1920 columns of native pixels and 1080 lines of native pixels, i. a total of 3 x 1920 columns and 1080 lines. The block scheme explained with reference to Fig. 1, i. However, by regularly continuing the block scheme, the grouping of individual color matrix elements into blocks which are used to display certain images, as well as the positioning of the blocks relative to each other, can also be applied to image representation matrices with much more matrix elements, e.g. Fill HD format, to be transferred. For example, For example, the block scheme shown in Figure 1 would continue such that a rightmost column, next to the eleventh column, is followed by a twelfth column, and so forth, having the same block assignment as the second column.

The matrix elements of the matrix V in FIG. 1 are color matrix elements which can each represent only one of the three primary colors red, green, blue. Unlike in FIG. 1, however, the color matrix elements can also follow one another cyclically in a different order, for example, in a different order. B. red, blue, green. The matrix elements shown in the first row and first column, upper left in Fig. 1 is denoted by the reference Raa. In this case, "R" stands for "red", since the matrix element Raa can represent a red color pixel. In the example shown in Fig. 1 are in the same line of

Matrix elements always color matrix elements to represent the same basic color. Therefore, the color matrix element Rab arranged to the right of the element Raa is also an element for representing the red base color. The second and third

Letter in the name of the matrix elements denotes the row or column, in which is the matrix element. The red matrix element in the first row and third column is therefore denoted by the reference Rae, and the element shown in the top right-hand corner of FIG. 1 in the first row and eleventh column is denoted by

Designated Rak. In the second line of the color matrix elements are in the embodiment elements for displaying the green base color, in the third row are matrix elements for displaying the blue base color. This sequence of colors is cyclic over the column direction

continued successive lines. Therefore, e.g. the sixth line again a line to represent the blue base color. The first matrix element, i. in the first column of the sixth line, is therefore denoted by the reference Bfa.

The block diagram of the exemplary embodiment illustrated in FIG. 1 has in each case blocks of eight color matrix elements which follow each other in the column direction. The block located at the top left of Fig. 1 therefore has the elements designated Raa, Gba, Bca, Rda, Gea, Bfa, Rga and Gha. The in column direction

The next element already belongs to the next block, which is used to represent another image. It should be designated by the reference Bia. In addition, in FIG. 1, for better recognition of the colors of the individual matrix elements, each element serving to represent the red base color is checkered, each element serving to represent the green base color is dotted and each element serving to represent the blue base color , filled by a white area. In addition, in each rectangular frame, which represents the outer dimensions of a color matrix element, there is still a number from 1 to 5. This number indicates which of several images the matrix element is used for. In the embodiment, five images are simultaneously represented by the matrix V. It follows in block line direction, i. in a row consisting of eight in the column direction

superimposed color matrix elements, to the right of a block that serves to represent Figure 1, a block that serves to represent Figure 3. This block is followed by a block in the next column, which serves to display Figure 5, followed by a block in the next column, which serves to represent Figure 2, followed by a block in the next column Presentation of Figure 4 is used.

Basically, the pictures could be numbered differently. For example, the block to the right of the block used to represent Figure 1 could be designated by the numeral 2. However, the assignment of the blocks shown in FIG different images in autostereoscopic display of images a meaning. For example, the viewer sees from a certain relative position to the

Image representation matrix V with his left eye image 1 and his right eye image 2. The not shown in Fig. 1 lens assembly, arrangement of prisms or

Arrangement of slots is designed accordingly. Preferably, therefore, the images 1 and 2 have been created to contain the image information corresponding to the viewer for a particular three-dimensional impression. If the images are e.g. taken by individual cameras, these cameras are preferably in the position in which the respective eye of the observer would be, which would directly view the object or the scene. The total of five images may preferably have been so recorded or otherwise generated (e.g., by simulations) to have five views

represent different relative positions of an object or a scene.

It is particularly preferred that the individual images associated

Relative positions to the object or scene are chosen so that respectively

different pairs of images correspond to the relative position of the two eyes of a viewer so that each of the several different pairs creates a three-dimensional visual impression. For example, For example, both the pair of pictures 1, 2, the pair of pictures 2, 3, the pair of pictures 3, 4, and the pair of pictures 4, 5 may be one

realistic three-dimensional visual impression of a scene or object on the viewer effect.

As mentioned, the so-called block scheme is determined not only by the height of the blocks in the column direction, but also by the relative position of the blocks used for the same image. Further, the size of the blocks includes not only the extent in the column direction but also the width of the blocks. In general, it is preferred, not only with respect to the exemplary embodiments illustrated in FIG. 1, that the blocks each have only the width of a matrix element in the row direction. However, it would also be conceivable for a block to be e.g. extends over two or more columns. In this case, over the height of the block, all the corresponding matrix elements in the various adjacent columns would be part of the block. But even in this case, the total height of the block is greater than the width of the block in the row direction.

The block diagram shown in Fig. 1 has the feature that for the

Representation of a particular image used blocks by one column per two

Block line heights are offset from each other. In other words, the in the direction that is defined by the optical device as the edge line direction of the visible areas, next adjacent block for displaying the same image only in the next but one block line. For example, the block of the elements Raa ... Gha has as the next adjacent block in this direction the block with the matrix elements Gqb to Bxb. However, in the second block line from the top in the illustration of FIG. 1 there are also blocks for displaying the same image. Although, for example, in the column d and in the second block line (starting with matrix element line i), there is also a block for displaying the first image and this block is the closest to the block from the elements Raf to Ghf. However, these two blocks do not appear in the same striped area that a viewer can see when viewing the matrix through the optical device. Also, the offset in the column direction between these two blocks is two columns. The observer therefore does not clearly perceive the spatial proximity of these two blocks.

The direction defined by the optical device, which itself is not shown in Fig. 1, is represented by four dashed lines LA, LB, LC and LD. At a given angle of view, these lines may be considered as the center axes of the stripe-shaped recognizable areas of the matrix. In the illustrated example, these lines LA to LD run exactly through the geometric center of the blocks to represent the third image. "Geometric center" means that the midpoint lies between the column-fourth and fifth elements of the block, and in the row direction at half the width of the matrix elements.

The previously defined offset of the blocks in the direction defined by the optical device, which is not visible even in FIG. 1, continues regularly over the entire matrix. Therefore, starting from the block with the

Matrix elements Bid to Rpd is the block closest to this direction in the following column e and two block rows lower, starting with the element Rye as the uppermost of the eight elements following the column direction of the block. This block is not completely shown in Fig. 1. The same offset by one column and two block lines also exists in the blocks for displaying the other images.

FIG. 2 shows a detail of the illustration in FIG. 1. The section contains the matrix elements shown at the top left in FIG. 1, namely the first three block rows and the first six columns. Fig. 3 shows schematically an arrangement with five cameras K1 to K5, which receive an object OB from different angles and each generate an image or a sequence of images. Preferably, the different viewing directions of each two adjacent cameras K correspond to the different viewing directions of the right and left eyes of a viewer, if he would be at the location of the camera. The digital image signals, which consequently contain the image information of the object OB dissolved in lines and columns, become a single image from the respective camera K.

Memory ST1, ST2, ST3, ST4 or ST5 transmitted. The

Memory devices ST together with an overall image data memory SB are part of a processing device AB for processing the image data, so that the image data can be displayed in the manner according to the invention. Each of the image data memories ST transfers either the digital images to be displayed unchanged to the entire image data memory SB or transmits modified image data to the overall image data memory SB. If the image data is unchanged from the respective

Image data memory ST are transferred to the entire image data memory SB, a modification of the image data is made by a device which is combined with the image data memory SB. "Unchanged" refers to an image, e.g. the picture taken with the camera K1 at a certain time. "Unchanged" does not refer to the temporal sequence of image data. Rather, the term refers to the selection of blocks used in the present invention to represent the particular image. Through the preparation of the respective image, those pixels are selected from the original unmodified image data produced by the respective camera or in another way in the respective image matrix, which pixels correspond to the blocks of the image

Match image matrix, which are used to represent the image. In the example of the block scheme according to FIG. 1 and FIG. 2, the pixels which are to be displayed on the matrix elements Raa to Gha are selected in the upper left in the image 1. All pixels corresponding to matrix elements representing the other images are not selected and / or eliminated. This can e.g. be realized in that only the selected pixels from the respective image data memory ST to the entire image data memory SB are transmitted. Alternatively, the device combined with the total image data memory SB may provide a new overall image matrix for

Representation on the image representation matrix V (for example, the matrix according to Figure 1 and Figure 2) generate. The overall image contains exactly the pixels that are to be displayed on the image presentation matrix to simultaneously display the different images. For example, the device combined with the total image data memory SB may be of the individual ones

Image data ST each retrieve the pixels, which correspond to the block diagram are to be filled. The generation of such an overall image is known per se. For example, the process described in DE 69718534 T2 requires the creation of such a total image, but not with the block scheme according to the invention. Also, the overall image does not necessarily have to be in advance in a total image data storage. Rather, the pixels to be displayed in the blocks may be retrieved sequentially for each image directly from the associated image data memory (eg, corresponding to the image data memories ST1 to ST5). An appropriate device calls z. B. cyclically in the order of images 1, 2, 3, 4 and 5 each of the valid for a time pixels to be displayed in the blocks of the image, from the individual

Image data storage. In this way, time varying images can be displayed in the manner of a film.

Figure 4 shows schematically a side view or a section through a

Image representation matrix V, which may be for example the matrix of Figure 1 and 2 or Figure 3. Above the matrix V, a slot arrangement can be seen. In the direction perpendicular to the image plane of FIG. 4, slits extend obliquely through the slit arrangement, corresponding to the intersection angle between the edges of the stripe-shaped areas recognizable by the viewer and the column direction. In contrast, the line direction is horizontal in the image plane of FIG. 4. The regions denoted by the reference symbols Da, Db, De, Dd, De, Df, Dg and Dh are opaque. The spaces between these areas D are the slots.

FIG. 5 shows the image presentation matrix V with the block diagram from FIG. 1, wherein in addition a part of an exemplary embodiment of a slot arrangement is shown. In the slot arrangement is z. B. around the formed by the areas Db, De and Dd of Figure 2 2 slots. Other opaque areas are present in practice, but not shown for reasons of clarity in Figure 5. The opaque region are not completely opaque shown in Figure 5, but by extending obliquely to the column direction bars, which are hatched with lines in the vertical direction.

In the embodiment of Figure 5 can be seen in the 2 slots in the

opaque areas D, that there are mainly areas of

Are matrix elements that form blocks to represent the second image. The uppermost matrix element lying in the left slot is the matrix element Rad. However In the two slots, partial areas of matrix elements which do not belong to blocks for the representation of the second image are also recognizable. In the illustrated case, these are subareas of blocks that serve to represent the first and the third image. The proportion of the recognizable areas formed by the blocks 2 with respect to the individual other recognizable blocks is much greater than 50%, namely at least 65%. This results from the selected slot width of half a matrix element width. However, the slot width can basically also be selected larger or smaller.

Figure 6 shows the same opaque areas Db, De and Dd in the same

Relative position to the image display matrix V as Figure 5. However, since the slots are arranged in the viewing direction at a distance in front of the plane of the image display matrix V (see also Figure 4), the strip-shaped region, which can be seen through a slot from Viewing angle of the viewer dependent. Unlike in Figure 4, in practice, the extent of the opaque areas in the viewing direction will be much smaller. For example, the opaque areas have only an extension of a few micrometers in the direction of view. In contrast, the width of the slots z. B. preferably equal to half the length of the matrix elements in the row direction. Compared to the situation according to FIG. 5, the position of the observer in the situation in FIG. 6 is further to the left. Referring to the situation in FIG. 5, in the situation in FIG. 6, the view more falls to the bottom right in areas which in FIG. 5 were covered by the left edges of the opaque areas. As is usually the case in practice,

For example, suppose that the distance of the observer from the plane of the rendering matrix is much greater than the distance of the opaque regions from the plane of the rendering matrix.

The exemplary embodiment of the block diagram in FIG. 1, FIG. 2, FIG. 5 and FIG. 6 contains the combination of several features which were described before the description of the figures. The block scheme contains the basic property that the height in the column direction in the blocks is larger than the width in the row direction. Furthermore, the number of successive matrix elements in the column direction is not divisible by three without residual or fractional parts and amounts to 8 in the example. B. 7, 10, 11, 13 or 14. Further, in the direction defined by the optical device next adjacent blocks are offset by two block rows and one column against each other. Finally, the blocks contain only

Matrix elements of a column. Also, the embodiment relates to Commercially available imaging matrices, where three color matrix elements

together form a native matrix element to represent arbitrary colors.

This combination of features makes it possible to simultaneously display a plurality of images on the image representation matrix even if the width of the individual matrix elements is greater than their height in the row direction. In this case, the direction defined by the optical device and thus the edges of the recognizable regions runs relatively steeply, that is to say the column direction intersects at a small angle, from approximately 10 to 11 degrees. As a result, the proportion of the surface of the matrix which can be recognized by the viewer, which is formed by the image to be displayed, is relatively large, and on the other hand no contrast reduction takes place at certain angles due to excessive recognizability of the surface arranged between the columns of the matrix elements. Furthermore, color distortion is ruled out since, although each block individually represents color falsification, the totality of the blocks adjacent in the direction defined by the optical device compensates for the color falsification of the individual blocks.

With this combination of features high-quality simultaneous representations of several images in portrait mode are possible especially in the commercial displays.

Claims

claims

1 . Image display device for the simultaneous reproduction of a plurality of

Pictures (1 - 5), where

the arrangement has a two-dimensional image representation matrix (V), by means of which the matrix elements (R, G, B) arranged in rows and columns can be displayed,

- The arrangement comprises an optical device (D), which is designed to prevent from respective viewing angle areas in each case a view of parts of the images represented by the image display matrix (V) images (1-5), so that from the viewing angle areas each one of the images (1 - 5) is recognizable,

by the optical device (D) a direction (L) in the surface of the

Imaging matrix (V) is defined, which runs parallel to edges of those areas of the image display matrix (V), which consists of the

Viewing angle areas are recognizable or not recognizable,

straight lines running in the direction (L), the columns of the

Intersect the image presentation matrix (V) at a smaller angle than the lines of the image presentation matrix,

the picture display device (V) is arranged in blocks (Raa-Gha) of matrix elements (R, G, B) in the row direction and column direction of the picture display Matrix (V) are separated from each other by other matrix elements (R, G, B) not used for the representation of this image,

- The blocks (Raa - Gha) each successive in the column direction

Have matrix elements (R, G, B),

- In the blocks (Raa - Gha) in each case the total height of the successive column direction matrix elements (R, G, B) is greater than the width to be determined in the row direction of the matrix elements (R, G, B).

2. Image display device according to the preceding claim, wherein the

Image representation matrix (V) is a matrix of color matrix elements (R, G, B) of three primary colors, wherein the colors change cyclically in the column direction, so that each three in the column direction successive matrix elements (R, G, B) a Matrix element (R, G, B) of each of the three primary colors, and wherein the number of columnar successive matrix elements (R, G, B) in each block (Raa - Gha) are not divisible without remainder and not without fractions by three is.

A picture display device according to any one of the preceding claims, wherein the number of column array consecutive matrix elements (R, G, B) in each block (Raa - Gha) is equal to or greater than seven and is preferably eight.

A picture display device according to any one of the preceding claims, wherein the blocks (Raa - Gha) define block rows whose row direction is parallel to the row direction of the matrix rows and whose row height equals the total height of the column array consecutive matrix elements (R, G, B) of the respective one Blocks (Raa - Gha), wherein the blocks (Raa - Gha) each contain only matrix elements (R, G, B) of a column of the image presentation matrix (V), in the direction indicated by the optical device (D). is defined, adjacent blocks (Raa - Gha) used to represent the same image (1-5) are offset by one column of the image presentation matrix (V) from each other for two line heights of the block lines.

5. A method for the simultaneous reproduction of a plurality of images (1-5) by means of a two-dimensional image representation matrix (V), by means of which the matrix elements (R, G, B) arranged in rows and columns are represented by the images (1-5). In particular, a method of operating the arrangement according to any one of claims 1-4, wherein

- An optical device (D) is used and the images (1-5) are represented by the image display matrix (V) in such a way that the optical device (D) from respective viewing angle areas each one

Viewing of parts of the images (1 - 5) represented by the image presentation matrix (V) and that one of the images (1 - 5) can be seen from the viewing angle regions,

- The optical device (D) a direction (L) in the surface of

Image representation matrix (V) defined, which runs parallel to edges of those areas of the image representation matrix (V), which consists of the

Viewing angle areas are recognizable or not recognizable, straight lines running in the direction (L), the columns of the

Intersect the image presentation matrix (V) at a smaller angle than the lines of the image presentation matrix (V),

the images (1-5) are represented by the image presentation matrix (V) in such a way that the image representation matrix (V) of at least one of the images (1-5) is formed in blocks (Raa-Gha) of matrix elements (R, G , B), which are in

Row direction and column direction of the image display matrix (V) from each other by others, not used for the representation of this image (1 - 5)

Matrix elements (R, G, B) are separated,

- The blocks (Raa - Gha) each successive in the column direction

Have matrix elements (R, G, B),

- In the blocks (Raa - Gha) in each case the total height of the successive column direction matrix elements (R, G, B) is greater than that in

Row width to be determined width of the matrix elements (R, G, B).

6. A method for producing a picture display device for simultaneous

Reproducing a plurality of images (1-5), the method comprising:

Providing a two-dimensional image representation matrix (V), by means of which the matrix elements (R, G, B) arranged in rows and columns can be displayed,

Providing and arranging an optical device (D) in such a way that viewing of parts of the images (1-5) represented by the image representation matrix (V) is prevented from corresponding viewing angle regions, so that in each case one of the images (1 5), such that a direction (L) is defined in the surface of the image display matrix (V) by the optical device (D), which extends parallel to edges of those regions of the image display matrix (V) which consist of the viewing angle ranges are recognizable or not recognizable, and that straight lines running in the direction (L) intersect the columns of the image display matrix (V) at a smaller angle than the lines of the

Image presentation matrix (V),

Providing a two-dimensional digital image data set or

Providing a processing device (AB) for processing a two-dimensional digital image data record, so that in operation of the image display device rows and columns of the two-dimensional

Image data set by corresponding lines and columns of the image display Matrix (V) and so that at least one of the plurality of images (1-5) is represented in blocks (Raa - Gha) of matrix elements (R, G, B) in the row direction and column direction of the image presentation matrix (V) are separated by other matrix elements (R, G, B) not used for the representation of this image, wherein the blocks (Raa - Gha) each have in the column direction successive matrix elements (R, G, B) and wherein in the blocks (Raa - Gha) in each case the total height of in

Column direction successive matrix elements (R, G, B) is greater than the width to be determined in the row direction of the matrix elements (R, G, B).

7. Digital image data set for reproduction on a two-dimensional

Image representation matrix, arranged in rows and columns

Matrix elements (R, G, B), the pixels of the image data set and thereby the images (1-5) can be displayed, wherein

the image data set comprises a plurality of images (1-5) which are to be reproduced simultaneously on the image presentation matrix (V),

the pixels of each of the plurality of images (1-5) are arranged in blocks (Raa-Gha) of pixels arranged in the row direction and column direction of the image data set and thus also in the representation of the image presentation matrix (V) by other, pixels or matrix elements (R, G, B) not used for the representation of this image are separated,

- the blocks (Raa - Gha) each have in the column direction successive pixels or matrix elements (R, G, B),

- In the blocks (Raa - Gha) in each case the total height of the successive column direction pixels or matrix elements (R, G, B) is greater than the width to be determined in the row direction of the pixels or matrix elements (R, G, B).

An image data set according to the preceding claim, wherein the image data set defines a matrix of color pixels of three primary colors, the colors in

Change the column direction cyclically such that each three consecutive pixels in the column direction have one pixel of each of the three primary colors, and wherein the number of consecutive pixels in each column is not divisible without remainder and not fractions by three.

An image data set according to any one of the preceding claims, wherein the number of consecutive pixels in the column direction in each block (Raa - Gha) is seven or greater, and is preferably eight.

An image data set as claimed in any one of the preceding claims, wherein the blocks define block rows whose row direction is parallel to the row direction of the pixel rows and whose row height equals the total height of the row of pixels

Column direction of successive pixels of each block, the blocks each containing only pixels of a column of the image data set, wherein in a direction which is oblique to the column direction and which intersects the columns of the image data set at a smaller angle than the rows of the image data set, each other adjacent blocks formed by pixels of the same image are offset from one another by one column of the image display matrix (V) per two line heights of the block lines.