WO2017140883A1 - Écran autostéréoscopique doté d'une barrière optique présentant un filtre couleur et son utilisation - Google Patents

Écran autostéréoscopique doté d'une barrière optique présentant un filtre couleur et son utilisation Download PDF

Info

Publication number
WO2017140883A1
WO2017140883A1 PCT/EP2017/053680 EP2017053680W WO2017140883A1 WO 2017140883 A1 WO2017140883 A1 WO 2017140883A1 EP 2017053680 W EP2017053680 W EP 2017053680W WO 2017140883 A1 WO2017140883 A1 WO 2017140883A1
Authority
WO
WIPO (PCT)
Prior art keywords
pixels
pixel matrix
screen
subsets
columns
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/053680
Other languages
German (de)
English (en)
Inventor
René DE LA BARRÉ
Silvio Jurk
Mathias Kuhlmey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of WO2017140883A1 publication Critical patent/WO2017140883A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/317—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using slanted parallax optics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/324—Colour aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/349—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking
    • H04N13/351—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking for displaying simultaneously

Definitions

  • the invention relates to an autostereoscopic screen for the simultaneous reproduction of at least two different images, which are visible from each one of a corresponding number of laterally offset viewing zones in front of the screen, according to the preamble of the main claim. Moreover, the invention relates to a use of such a screen for reproducing autostereoscopic three-dimensionally perceptible images.
  • a generic screen comprises a pixel matrix having a plurality of pixels of at least three different primary colors arranged in a plurality of columns, each of the columns being formed by pixels of a base color that is the same for all pixels of that column, and a front or back the pixel matrix arranged optical barrier, which is adapted to impose on the pixels emanating from the pixels or transmitted light through the pixels a defined propagation direction and this To direct light in each one of the different viewing zones, the optical barrier to have color filters, which are transparent to light exactly one of the primary colors.
  • Such screens are known for example from the document DE 100 03 326 C2.
  • the invention is therefore based on the object to develop an autostereoscopic screen with which the highest possible image resolution can achieve the highest possible image brightness, in such a way that the image brightness remains as unimpaired even with a lateral movement of a viewer of the screen, the Screen at the same time as possible to make possible a good separation between different images that should be visible from different viewing zones, so that a crosstalk between these images is thus avoided as well as possible.
  • the color filters which are transparent in each case for light of only one of the primary colors, already contribute to the separation of the images because of this wavelength selectivity.
  • light that emanates from a pixel of a certain primary color and falls on one of the color filters or that - in the case of an optical barrier behind the pixel array - from one of the color filters on a pixel of a certain primary color falls, only in one the location of the pixel and the color filter predetermined viewing zone fall when the color filter for light is exactly this basic color transparent.
  • the base colors will be selected as red, green and blue, but other primary colors or a larger number of base colors may be chosen that are capable of superimposing all desired image colors.
  • the color filters of each of the primary colors in each case form a pattern of parallel strips, the strips extending in one direction with a predominantly vertical component and including a non-vanishing angle with the columns of the pixel matrix.
  • a clean separation of the various reproduced images is achieved so that they are at least largely visible only from one of the laterally offset viewing zones, at the same time - because of the non-disappearing viewing zone Angle between the columns of the pixel matrix and the stripes of the optical barrier - ensuring in each case an at least approximately equal number of pixels of each of the primary colors distributed uniformly over the screen is visible from each of the viewing zones.
  • the following advantageous effect results.
  • the optical barrier can be arranged in front of or behind the pixel matrix. The pixels can therefore be arranged between the optical barrier and an illumination of the pixel matrix.
  • Said angle between the gaps and the strips can e.g. 10 ° or more.
  • the non-vanishing angle is in each case
  • the gaps are vertical while the stripes are inclined at the non-zero angle.
  • the strips are vertical and the columns are inclined by the corresponding angle.
  • the columns therefore do not necessarily have to be oriented exactly vertically, but the pixel matrix has at least one column direction with a predominantly vertical component. It is also conceivable that both the columns and the strips are inclined, preferably deviating in the opposite direction from the vertical, so that they include a non-disappearing angle as required.
  • the stripes formed by the color filters can also soften minor deviations from strict periodicity to avoid the generation of spurious morie patterns by the superposition of periodic pixel matrix and optical barrier structures.
  • edges of the strips may be deviated from a straight line, e.g. wavy or zigzag.
  • the formulation of a predominantly vertical component direction used herein in connection with the column direction and the direction of the stripes is, of course, to be understood such that a vertical component of this direction is greater than a horizontal component of that direction in a representation of the direction as a vector in Cartesian coordinates with respect to a vertical and a horizontal coordinate axis of a two-dimensional coordinate system.
  • each of the color filters forms one of the stripes extending from an upper or lower edge of the pixel matrix to an opposite or lateral edge of the pixel matrix so that each of the stripes is formed by a single color filter. This results in a simple structure of the optical barrier, with disturbing effects being avoided by edges of color filters hitting each other in the direction of the strip.
  • the color filters immediately adjacent strips can abut each other directly to achieve a total of the highest possible light output.
  • a more or less wide opaque strip-shaped barrier to remain between the immediately adjacent strips of color filters of different primary colors, in order to prevent crosstalk between the different images even better.
  • the possibility that instead of ordinary color filter switchable filter elements are used to form the optical barrier which can also assume an opaque state in addition to a transparent for the respective base color state. Even such a filter element should - in spite of the possibility of darkening - as transparent to the respective color base color filter in the sense of the claims.
  • each different stripes can be switched transparent or opaque, which - assuming sufficiently fast switching - can be achieved at a very good image separation at the same time a very high image resolution.
  • the color filters will be non-switchable simple filters, resulting in a particularly simple construction of the screen.
  • a screen of the type described may be used to render autostereoscopic three-dimensionally perceptible images by driving the pixels of the pixel matrix in response to image data from at least two different views of a scene such that each of these views is displayed on a subset of the pixels and is visible from each one of the viewing zones, the views differing from each other so as to complement each other in pairs to form a stereo image of the scene.
  • exactly one or, apart from possible crosstalk effects due to overlapping of the viewing zones at least in the first place one of these views is visible from each of the viewing zones.
  • the screen can have a control unit for driving the pixel matrix, which is set up to control the pixels of the pixel matrix in dependence on image data of at least two views of a scene, such that each of these views is displayed on a subset of the pixels and each one of the viewing zones is visible.
  • a control unit for driving the pixel matrix which is set up to control the pixels of the pixel matrix in dependence on image data of at least two views of a scene, such that each of these views is displayed on a subset of the pixels and each one of the viewing zones is visible.
  • Embodiments are conceivable in which exactly two complementary views are reproduced for viewing from two viewing zones if the screen is to be designed for use by a single observer, ie as a so-called single-user display.
  • versions are also possible in which a larger number of views are reproduced and are visible from a correspondingly larger number of viewing zones.
  • the screen forms a so-called multi-view display, which may be suitable for autostereoscopic viewing by multiple viewers and in which a single viewer will see one of his current position dependent and changing with a viewer's movement perspective of the scene being played ,
  • measures for a so-called tracking can be provided, ie a detection of eye positions or a head position of a viewer and a definition of said subsets and driving the pixel matrix depending on the detected eye positions or the detected head position such that the viewer at least the reproduced scene within relatively wide limits regardless of its exact position with depth effect can see.
  • the screen may additionally comprise a device for detecting eye positions or a head position of a viewer, the control unit then being set up to control the pixel matrix depending on the detected eye positions or the detected head position. This is expedient in particular if the screen is a single-user display in the sense described above.
  • some of the pixels may be associated with two of the subsets and driven with an intensity value resulting from averaging in response to image information of two of the images.
  • This can be helpful for achieving a good image quality, in particular if the image data or image information is to be moved laterally or stretched or compressed in the pixel matrix in order to control the pixel matrix to a lateral movement of the viewer or to a smaller or to adjust to a larger viewing distance. How this can be done in a manner that is also applicable to the screen described herein, the document WO 2013/110779 AI shows the example of a conventional multi-view display.
  • the mentioned subsets of pixels may be disjoint or overlap in marginal areas if there are pixels in the manner described
  • Intensity values are controlled, which result by superposition of two defined by one of two views intensity values.
  • the subsets each form a periodic pattern of strands of successive clusters of successive clusters of at least two pixels of the same base color, the pixels of the clusters of each of these chains being the same color for each cluster of that string.
  • each of the clusters will be formed by a group of directly superimposed pixels. It is also conceivable that instead of each of the clusters, only a single pixel is provided in each case, in particular in embodiments of the pixel matrix with very portrait-shaped, elongated pixels.
  • the subsets may each form a periodic pattern of stripes of individual pixels running in the direction of the stripes, the pixels of each of these strings being in each case the same as the base color for all the pixels of this string.
  • the subsets may be defined so that the pixels in each of the columns are assigned individually from top to bottom or in groups in cyclic order, that is, alternately in the case of two subsets, to the different subsets.
  • the pixels are arranged in columns and rows.
  • the pixels in each of the lines from left to right can also be assigned individually or in groups in cyclical order-in the case of two subsets, alternately-to the different subsets. Also in the row direction, therefore, two or more immediately consecutive pixels of the same subset can be assigned.
  • FIG. 1 is a schematic representation of a plan view of an autostereoscopic screen with a pixel matrix and an optical barrier and a viewer's space in front of this screen
  • FIG. 3 shows a section of the pixel matrix of the screen, wherein individual pixels of the pixel matrix and a structure of the optical barrier arranged in front of the pixel matrix are indicated,
  • FIG. 4 shows the same section of the optical-barrier pixel matrix in a representation which illustrates which of the pixels from one of two viewing zones are visible through the optical barrier
  • FIG. 5 in a representation corresponding to FIG. 3 the section of the pixel matrix with a slightly modified control of the pixel matrix
  • FIG. 6 shows, for a screen of the type shown in FIG. 1, a beam path of light which is shown in horizontal section and which originates from red pixels of the pixel matrix into the viewer's space, FIG.
  • FIG. 8 shows, for the same screen, a corresponding ray of light emanating from green pixels of the pixel matrix and falling into the viewer's space
  • FIG. 9 in a representation corresponding to FIG. 4, a section of the pixel matrix with the optical barrier disposed therebefore in a modified embodiment of the optical barrier, FIG.
  • FIG. 10 shows a detail of a pixel row of the pixel matrix of a screen of the type shown in FIG. 1 with an optical barrier disposed therebefore in an embodiment in which opaque regions remain between individual color filters of the optical barrier, and FIG
  • FIG. 11 shows a portion of a pixel row of the pixel matrix of a screen of the type shown in FIG. 2 with a similarly designed but behind the pixel matrix arranged optical barrier.
  • FIG. 1 shows an autostereoscopic screen which has a pixel matrix 11, an optical barrier 12 arranged in front of it and a backlight 13 arranged behind the pixel matrix 11 and a control unit 14 for driving the pixel matrix 11.
  • This screen is set up for the simultaneous reproduction of two different images in the present case, which are visible from a viewer's space in front of the screen, in such a way that each of these images can be seen from one of two viewing zones 15 shown here in rhombic form.
  • the screen is designed as a so-called single-user display, which means that it is set up for the simultaneous reproduction of exactly two different images, which are visible from one of the two viewing zones 15.
  • the screen forms a so-called multi-view display, on which a larger number of different images is displayed simultaneously, two of which from the two central viewing zones 15 and the rest of each one of itself laterally following further viewing zones are visible, which are shown here as dotted rimmed diamonds.
  • one of these images can also be visible from one or more so-called secondary zones, which adjoin the viewing zones 15 laterally and, in the case of the single-user display, correspond to the diamonds bordered by dots in FIG.
  • the screen When used as intended, the screen is controlled in such a way that the various images displayed simultaneously correspond in each case to different views of a scene, which differ from one another in such a way that they complement each other in pairs to form a stereo image of the scene.
  • a viewer who is placed in the viewer's room so that his eyes are in the two adjacent viewing zones 15 can thereby perceive the reproduced scene autostereoscopically with depth.
  • the scene In the case of the multi-view display, the scene can thus be perceived in three dimensions simultaneously by several viewers placed next to each other.
  • a lateral offset between immediately adjacent viewing zones 15 may be e.g. a typical eye distance corresponding to about 65 mm.
  • two views of the scene are reproduced, which differ from each other by a parallax shift and thereby complement one another to form a stereo image.
  • a tracking device 16 can be provided, which can detect eye positions or a head position of the observer, for example with the aid of two cameras, the control unit 14 in this case being able to control the screen depending on an output signal of the tracking device 16 such that the two viewing zones 15 be effectively shifted laterally and the viewer can see the rendered scene thereby within very wide limits regardless of its exact position with depth effect.
  • each of the columns of the pixel matrix 11 is formed in each case by pixels of a base color which is the same for all pixels of this column, so that the pixel matrix
  • the individual pixels or the columns of the same color pixels if recognizable, in each case by one of the letters R, G or B, where R for a red pixel or a column of red pixels, G for a green pixel or one column of green pixels and B represents a blue pixel or a column of blue pixels.
  • the pixels are each given a number 1 or 2. This number then stands for the number of one of two views, which are simultaneously displayed on the screen and numbered 1 or 2, the number in a pixel then always representing the number of the view for the reproduction of which Pixel contributes.
  • the optical barrier 12 has strip-shaped color filters, which are respectively transparent to light of precisely one of the primary colors red, green or blue and are therefore particularly wavelength-selective.
  • the color filters are arranged so that the color filters of each of the primary colors each form a comb-like pattern of parallel stripes, the stripes being inclined relative to the columns of the pixel matrix 11 by a non-zero angle.
  • Each of the stripes is thereby formed by one of the color filters and extends from an upper or lower edge of the pixel array 11 to an opposite or lateral edge of the pixel matrix 11.
  • Diffusers may be arranged in front of the color filters to facilitate the dependency of image quality on the exact observer position to reduce. Due to the arrangement and the wavelength selectivity of the different color filters, the optical barrier
  • the dedicated control unit 14 controls the pixels of the pixel matrix 11 in response to image data of the different views such that these views are displayed simultaneously on the pixel matrix 11, such that each of these views is on a subset the pixel is rendered and is visible from each one of the viewing zones 15 and that from each of the viewing zones 15 exactly one or at least in the first line - namely apart from possible crosstalk effects between views that are associated with the closely adjacent viewing zones 15 - each one of these views visible is.
  • the said subset can be defined depending on the detected eye positions or the detected head position. Also, the subsets may overlap so that some of the pixels, when at least partially visible from both viewing zones 15, are associated with both subsets and driven with an intensity value resulting from averaging in response to image information of two of the images.
  • an autostereoscopic screen is shown in a representation corresponding to FIG. 1, which differs from the exemplary embodiment described above only in that the pixel matrix 11 and the optical barrier 12 are arranged differently. Repetitive or corresponding features are provided here and in the other figures again with the same reference numerals.
  • the optical barrier 12 is not located in front of but behind the pixel matrix 11, between the pixel matrix 11 and the backlight 13 placed further back. This arrangement also permits separation of the different ones on the pixel matrix 11 from a plurality of each Subsets of pixels displayed views such that the different views from the different viewing zones 15 are visible.
  • the optical barrier 12 also provided here with strip-shaped wavelength-selective color filters imparts a defined direction of propagation to the light emanating from the backlight 13, initially passing through the optical barrier 12 and then transmitted by the pixels of the pixel matrix 11, because the light is only propagated through such pairs each one of the color filters and one of the pixels may fall into the viewer's space, where the pixel the same basic color as the color filter. Therefore, different partial regions of the pixel matrix 11 in front of the color filters of the optical barrier 12 are also visible from each of the viewing zones 15, the subsets being formed precisely by the pixels falling into these partial regions.
  • FIG. 3 shows a section of the pixel matrix 11 of the screen of FIG. 1, with individual pixels of the pixel matrix 11 and a structure of the optical barrier 12 arranged in front of the pixel matrix 11 being indicated.
  • edges of the color filters at which the color filters abut each other are represented by black lines, which indicate that said non-disappearing angle in the present embodiment is about 18 °, corresponding to an increase of three to one.
  • the pixels are each marked with one of the numbers 1 or 2, and here have an elongated format, so that three adjacent pixels complement each other to a square shape.
  • the increase of the stripes and / or the format of the pixels can also be chosen differently.
  • the letters R, G and B entered over the columns of the pixel matrix 11 show that the basic colors of the pixels of the successive columns alternate from left to right in cyclical order.
  • the color filters are here and also in the following figures each characterized by one of the letters R, G or B, which is in extension of the respective strip or strip portion shown, where R each have a red filter strip, G each have a green filter strip and B one each designated blue filter strip. The colors red, green and blue of the filter strips alternate from left to right in cyclic order.
  • Fig. 3 also illustrates how the pixels of the pixel array 11 are driven.
  • the pixels marked here with the number 1 reproduce the view provided for a small eye of the observer, and the pixels marked with the number 2 reproduce the view intended for the right-hand eye of the observer.
  • the two subsets of the pixels on which each one of the views is reproduced are defined such that the pixels, from top to bottom, respectively in groups of six directly consecutive pixels and in FIG each of the rows from left to right alternately alternately which subsets are assigned.
  • the pixels could, of course, also be assigned individually to the two subsets individually in the column or row direction.
  • a corresponding cyclic assignment to a larger number of subsets could be provided.
  • FIG. 3 also shows that the subsets each form a periodic pattern of chains of successive clusters 17 extending in the direction of the strips of pixels of the same primary color arranged immediately above one another in the present case, the pixels of the clusters 17 of each of these chains respectively have the same color.
  • the clusters 17 are shown framed in FIG. 3.
  • the remaining clusters are not provided with reference numerals in FIG. 3 for the sake of clarity, but can be recognized by marking the pixels with one of the numbers 1 or 2 in each case.
  • FIG. 4 again shows the same section of the pixel matrix 11 with the optical barrier 12 in a representation which illustrates which of the pixels are visible from an eye position in the left of the two viewing zones 15 through the color filters of the optical barrier 12. Due to the wavelength selectivity of the color filters only pixels are visible from this eye position, on which the first view provided for the left eye is displayed, while the pixels on which the second view intended for the right eye is reproduced - including those from the other viewing zone 15 visible pixels - are not visible from this eye position. Since each of the color filters the light of the corresponding
  • Fig. 4 also illustrates well that and why crosstalk between the different views is extremely well prevented and that the reproduction of the different views is possible with a uniform color distribution.
  • FIG. 5 shows, in a representation corresponding to FIG. 3, the same section of the pixel matrix 11 in the case of a slightly modified activation of the pixel matrix 11
  • Pixel matrix 11 which is alternatively possible.
  • the pixels of the pixel matrix 11 are here each marked with 1 or with 2 or with 1x2.
  • the first view is displayed, on the pixels marked 2 a second of the two views is displayed.
  • the pixels marked with 1x2 are controlled with brightness values which result in each case by averaging a brightness value defined by the first view for the respective location in the image and a brightness value defined by the second view for the same location in the image.
  • the viewing zones 15 can be adapted to a lateral or vertical movement of the viewer.
  • image contents of the two views are mixed, at the edges of the clusters 17.
  • the areas in which the clusters 17 and thus the subsets in this case overlap remain for The viewer is largely not or only partially visible, so that even with this control still a very good
  • Fig. 5 also illustrates, especially in comparison with Fig. 3, as the proposed screen, tracking of a viewer, in lateral as well as vertical direction and also in a movement on the screen to or from the screen, solely by vertically redistributing the pixels enabling the subsets mentioned, ie by redistributing the pixels or shifting the clusters 17 within the individual columns.
  • the color filters may also have a slightly different shape from the straight strip lines shown here to suppress Morie formations, such as a wave or zigzag shape.
  • FIGS. 6, 7 and 8 for a screen of the type shown in FIG. 1, which is controlled in accordance with FIGS.
  • a beam path is shown for light emanating from the pixels of the pixel matrix 11 and falling into the viewer's space.
  • the beam path is shown horizontally cut for each light emanating from pixels of one row of the pixel matrix 11, in Fig. 6 for light emanating from the red pixels of this line, in Fig. 7 for light that from the green Pixels of this line, and in Fig. 8 for light emanating from the red pixels of that line.
  • Below each of two graphs are shown, which indicates a perceptible from the respective position luminance of the visible there from areas of the pixel matrix 11, on which - in the case of provided with the number 1 graph - the first view or - in the case of with Number 2 provided graphs - the second view is rendered.
  • this luminance in the region of the viewing zones 15 remains the same over a relatively wide range over a relatively wide range due to the described design of the screen, before it drops relatively linearly to the respective other viewing zone 15 or to the secondary zones.
  • a period of the optical barrier in the lateral direction that is to say in the row direction, is slightly smaller than a pixel in the present case of a lateral offset of directly adjacent pixels.
  • outgoing light bundles from different pixels of the same subset converge in front of the screen at a viewing distance, respectively.
  • the viewing zones 15 are thereby formed at a distance corresponding to this viewing distance from the screen.
  • the graphs shown in FIGS. 6, 7 and 8 each relate to the luminance perceptible from this viewing distance.
  • FIG. 9 shows, in a representation corresponding to FIG. 4, a section of the pixel matrix 11 with the optical barrier 12 arranged therebefore in a modified embodiment of the optical barrier 12, which differs from the exemplary embodiment previously shown only in that between the strip-shaped color filters a strip-shaped opaque area remains.
  • the width of the opaque areas also has an influence on a width of the individual viewing areas. 15 and the degree of overlap of the two viewing zones 15.
  • FIG. 10 shows a section of a pixel row of the pixel matrix 11 with the optical barrier 12 arranged therebefore in the embodiment of FIG. 9, in which between the individual color filters of the optical barrier 12, which has an F 'to F' compared to the exemplary embodiment described above. have reduced width, the strip-shaped opaque areas of width s are provided.
  • SP stands for a pixel width or a lateral offset of adjacent pixels
  • T ' for a channel width or width of one of the viewing zones 15 in the viewing distance D in front of the screen.
  • a distance between the pixel matrix 11 and the optical barrier 12 is indicated by a in FIG.
  • An indicated beam path illustrates why the channel width T 'or width of the viewing zones 15 is smaller here than the larger width T of the viewing zones 15 in the comparable case without opaque
  • Periodicities and / or the use of diffusers - be helpful to prevent not only Moire formations, but also to avoid noticeable brightness variations in lateral movement of the viewer even better.
  • FIG. 11 shows, in an illustration corresponding to FIG. 10, a section of a pixel row of the pixel matrix 11 of a screen of the type shown in FIG. 2 with an optical barrier 12 arranged behind it, analogous to FIG. 10 in an embodiment in which between the individual color filters of the optical barrier 12 remain strip-shaped opaque areas.
  • the designations SP, a, F, F 'and s are used again as in FIG. Not shown is the behind the optical barrier 12 and here through the optical barrier 12 of the pixel matrix 11 separate backlight 13, from which passes through the optical barrier 12 and then through the pixel array 11 light.
  • Fig. 11 illustrates how in this arrangement, a separation of the two views and - by a suitable choice of the width s - an adjustment of the channel width T or T 'is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

L'invention concerne un écran autostéréoscopique permettant de restituer simultanément au moins deux images différentes visibles devant l'écran respectivement à partir d'une de la pluralité correspondante de zones d'observation (15) décalées latéralement, comprenant une matrice de pixels (11) qui présente une pluralité de pixels d'au moins trois couleurs de base différentes, disposés en colonnes, chaque colonne étant respectivement constituée de pixels d'une couleur de base identique pour tous les pixels de cette colonne, et une barrière optique (12) disposée devant ou derrière la matrice de pixels (11) et conçue pour conférer une direction de propagation définie à la lumière provenant des pixels ou transmise à travers les pixels et pour acheminer cette lumière respectivement jusqu'à une des différentes zones d'observation (15), la barrière optique (12) présentant des éléments filtrants qui sont transparents respectivement à la lumière d'une couleur de base précise; les filtres couleurs de chacune des couleurs de base formant respectivement un modèle de rayures parallèles qui s'étendent dans une direction avec des composantes majoritairement verticales et forment avec les colonnes de la matrice de pixels (11) un angle non nul. L'invention concerne une utilisation de cet écran pour la restitution d'images de perception tridimensionnelle.
PCT/EP2017/053680 2016-02-17 2017-02-17 Écran autostéréoscopique doté d'une barrière optique présentant un filtre couleur et son utilisation Ceased WO2017140883A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016202461.2 2016-02-17
DE102016202461.2A DE102016202461B4 (de) 2016-02-17 2016-02-17 Autostereoskopischer Bildschirm mit einer Farbfilter aufweisenden optischen Barriere und dessen Verwendung

Publications (1)

Publication Number Publication Date
WO2017140883A1 true WO2017140883A1 (fr) 2017-08-24

Family

ID=58267093

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/053680 Ceased WO2017140883A1 (fr) 2016-02-17 2017-02-17 Écran autostéréoscopique doté d'une barrière optique présentant un filtre couleur et son utilisation

Country Status (2)

Country Link
DE (1) DE102016202461B4 (fr)
WO (1) WO2017140883A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3120137B1 (fr) * 2021-02-22 2026-05-01 Alioscopy Écran d’affichage autostéréoscopique à p points-de-vue destiné à afficher une image autostéréoscopique à i points-de-vue et dispositif d’affichage comprenant un tel ecran

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10029531A1 (de) * 2000-06-16 2002-01-03 4D Vision Gmbh Anordnung zur räumlichen Darstellung
DE10003326C2 (de) 2000-01-25 2002-04-18 4D Vision Gmbh Verfahren und Anordnung zur räumlichen Darstellung
WO2007107347A1 (fr) * 2006-03-21 2007-09-27 Newsight Gmbh Disposition pour une représentation spatialement perceptible
EP2437098A1 (fr) * 2010-10-01 2012-04-04 3D Impact Media Agencement d'affichage autostéréoscopique
WO2013110779A1 (fr) 2012-01-26 2013-08-01 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung Affichage auto-stéréoscopique et procédé d'affichage d'une image 3d

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080002255A1 (en) * 2006-07-02 2008-01-03 Amon Tavor Stereoscopic Display Using a Color Parallax Barrier
DE202006013777U1 (de) * 2006-08-30 2006-11-16 Grasnick, Armin Autostereoskopische Anzeigevorrichtung
KR101290013B1 (ko) * 2008-10-07 2013-07-30 엘지디스플레이 주식회사 다중 뷰 영상표시장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10003326C2 (de) 2000-01-25 2002-04-18 4D Vision Gmbh Verfahren und Anordnung zur räumlichen Darstellung
DE10029531A1 (de) * 2000-06-16 2002-01-03 4D Vision Gmbh Anordnung zur räumlichen Darstellung
WO2007107347A1 (fr) * 2006-03-21 2007-09-27 Newsight Gmbh Disposition pour une représentation spatialement perceptible
EP2437098A1 (fr) * 2010-10-01 2012-04-04 3D Impact Media Agencement d'affichage autostéréoscopique
WO2013110779A1 (fr) 2012-01-26 2013-08-01 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung Affichage auto-stéréoscopique et procédé d'affichage d'une image 3d

Also Published As

Publication number Publication date
DE102016202461A1 (de) 2017-08-17
DE102016202461B4 (de) 2021-06-10

Similar Documents

Publication Publication Date Title
DE69616006T2 (de) Vorrichtung zum darstellen autostereoskopischer bilder
DE69718534T2 (de) Autostereoskopische Anzeigevorrichtung
EP1090510B1 (fr) Procede et dispositif d'autostereoscopie
DE102005012348B3 (de) Sweet-Spot-Einheit für ein Multi-User-Display mit erweitertem Betrachterbereich
DE69726087T2 (de) Räumlicher Lichtmodulator mit horizontal überlappenden Bildelementen
DE10003326C2 (de) Verfahren und Anordnung zur räumlichen Darstellung
DE69603374T2 (de) Autostereoskopische anzeige
DE10145133C1 (de) Verfahren zur räumlichen Darstellung
DE102009009443B3 (de) Monitor und Verfahren zum Darstellen autostereoskopisch wahrnehmbarer Bilder
DE102005001503A1 (de) Sweet-Spot-Einheit
DE20121318U1 (de) Anordnung zur räumlichen Darstellung einer Szene / eines Gegenstandes
WO1998027451A1 (fr) Procede et dispositif pour la representation tridimensionnelle d'informations
DE102018111142A1 (de) Elektronische Anzeigevorrichtung und Verfahren für deren Ansteuerung
DE112008002241T5 (de) Hochauflösende Anzeige von 3D-Bildern
DE102009034355B3 (de) Monitor und Verfahren zum Darstellen autostereoskopisch wahrnehmbarer Bilder
DE20002149U1 (de) Anordnung zur räumlichen Darstellung einer Szene/eines Gegenstandes
EP2997731B1 (fr) Procédé de reproduction d'informations d'image et écran auto-stéréoscopique
EP2901674B1 (fr) Procédé d'affichage d'informations d'image et écran autostéréoscopique
DE102010021550B4 (de) Bildwiedergabegerät und Verfahren zur Bildwiedergabe
DE102007046414B4 (de) Verfahren und Anordnungen zur räumlichen Darstellung
DE102005009444A1 (de) Verfahren zur autostereoskopischen Darstellung eines auf einer Displayeinrichtung angezeigten stereoskopischen Bildvorlage
DE102016202461B4 (de) Autostereoskopischer Bildschirm mit einer Farbfilter aufweisenden optischen Barriere und dessen Verwendung
DE102010018083B4 (de) Gleichzeitige Wiedergabe einer Mehrzahl von Bildern mittels einer zweidimensionalen Bilddarstellungs-Matrix
WO2021008780A1 (fr) Affichage de base pour un système d'affichage autostéréoscopique
WO2017140880A1 (fr) Écran autostéréoscopique et son utilisation pour restituer des images de perception tridimensionnelle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17710485

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17710485

Country of ref document: EP

Kind code of ref document: A1