RU2659190C1 - Autostereoscopic k-angle display with full screen resolution image of each angle (options) - Google Patents

Abstract

FIELD: image forming devices.

SUBSTANCE: invention relates to stereoscopic video technology and can be used to create multi-angle (K-angle) autostereoscopic TVs and monitors with full-screen spatial resolution in each view of the stereo image. Technical result is achieved by simultaneously reproducing two image elements in each pixel of the amplitude-polarization image driver based on the polarization coding, followed by decoding with the help of a static phase-polarization parallax barrier and with the selection of angle images in K/2 cycles of the device operation with an increase in the frame frequency by a factor of K/2 compared with the minimum (standard) frame rate of 60 Hz.

EFFECT: widening the viewing area of the stereo image by increasing the number of playback angles of the 3D scene.

6 cl, 32 dwg

Description

The invention relates to a technique for observing volumetric images, more specifically, to stereoscopic video equipment, and can be used to create multi-angle (K-angle, where K> 2) stereoscopic displays (TVs, computer monitors) with pointless observation of stereo images of three-dimensional (3D) scenes in full screen the resolution in the image of each angle of the 3D scene formed in the corresponding observation zone.

Known autostereoscopic multi-angle display with full-screen resolution in the image of each angle [1], containing a stereo video source and located on the optical axis of the light source, a matrix-addressable imager of images and addressable on the columns K-stroke dynamic amplitude parallax barrier (DAPB), the synchronization input of which connected to the output of the dynamic synchronization of the source of the stereo video signal, while the center of each column of the dynamic amplitude parallax barrier RA is located at the intersection of K optical paths going into K observation zones.

The known display provides the formation in the K-th observation zone of the image of the K-th view of the 3D scene with full-screen resolution corresponding to the total number MN of display pixels of the amplitude imager. In the first clock cycle of the well-known display, the first set of K columns of the DAPB is open to transmitting light traveling to the K observation zones from the first set of K columns of the amplitude image former, carrying the image of the first columns of images K angles of the displayed 3D scene. In the last (K-th) step of work, the K-th set of DAPB columns is open for transmission of light going to the K observation zones from the K-th set of the imager of the amplitude image carrying the image of the K-th image columns of K angles. As a result, for K clock cycles of the well-known display, a K-angle stereo image with full-screen resolution (with the number of MN elements) in the image of each angle is formed.

A disadvantage of the known display [1] is the need for its operation with a K-fold increase in the frame frequency F in comparison with the standard frame frequency F _st = 60 Hz. For example, when forming a two-way (K = 2) stereo image, the total working frame frequency is 120 Hz, and when forming a four-way stereo image, 240 Hz. Only in this case, during the operation of this display, there will be no flickering stereo images noticeable to the visual system (eyes) of a person, since due to the successive selection of image columns using DMAPB in each observation zone, the frame change frequency is equal to the total working frame frequency divided by K , i.e. is equal to F _min = 60 Hz.

With an increase in the working frame frequency, the requirements for the switching frequency of the display pixels of the amplitude imager and for the switching frequency of the DMAPB columns accordingly increase. Currently, matrix-addressable amplitude imaging devices based on nematic liquid crystals (NLCs) that provide a complete frame change of image angle views over the entire screen area (which is necessary for the well-known autostereoscopic display with DMAPB) with a maximum frame frequency of no more than 120 Hz. This allows using the existing NLC of the amplitude imager operating at a frame frequency of 120 Hz to form in the well-known display with DMAPB only a two-way stereo image leading to a narrow viewing area of the stereo image. The stereo image observation area, consisting of only two zones (left W _L and right W _R ), causes the viewer discomfort due to the need to constantly maintain the location of his left and right eyes close to the centers of the left W _L and right W _R of the observation zones, respectively. Assuming that the observer’s visual system (eyes) is shifted in the horizontal direction (in the direction of horizontal scanning of the images on the display screen) by a distance equal to the distance B between the eyes (where B≈64 mm), the perception of the stereo image is completely impaired, since each of the eyes of the observer in such the case falls into an inappropriate observation area (left eye E _L to the right W _R and right eye E _R to the left W _L observation zone).

The closest in technical essence (prototype) to the claimed device in its first embodiment is a two-way (K = 2 at F _st = 60 Hz) autostereoscopic display [2] with a full-screen resolution in the image of each angle, containing a stereo video source, a functional unit and located on one optical axis, a light source, matrix-addressable in M rows and N columns amplitude-polarization imager (FAPI), column-addressable static phase-polarization parallax barrier (FPPB), the FAPI contains an amplitude image adder (ASI) and a polarization image divider (PDI), the electronic inputs of which are connected to the corresponding outputs of the function block, the input of which is connected to the information output of the stereo-video signal source, and the aperture of the mnth element of the ASI is sequentially optically connected to the aperture mn -th element of PDI, where m = 1, 2, ..., M; n = 1, 2, ..., N, and the center of each FPPB column is located at the intersection of a pair of optical paths going from the centers of the corresponding pair of adjacent PDI columns to the centers of two (left L and right R) observation zones.

The closest in technical essence (prototype) to the claimed device in its second embodiment is a two-way (K = 2 at F _min = 60 Hz) autostereoscopic display [2] with full-screen resolution in the image of each angle, containing a stereo video source, a functional unit and located on one optical axis, a light source addressed in columns is a static FPPB, matrix-addressed in M rows and N columns of FAPI, while FAPI contains PDI and ASI, the electronic inputs of which are connected to the corresponding outputs of f of the national unit, the input of which is connected to the information output of the stereo-video signal source, the aperture of the mnth element of the PDI is optically connected with the aperture of the mnth element of the ASI, where m = 1, 2, ..., M; n = 1, 2, ..., N, the center of each FPPB column is at the intersection of a pair of optical paths going from the light source to the centers of the corresponding pair of adjacent PDI columns, and the center of each ASI column is at the intersection of two optical paths going into two (left L and right R) observation zones.

The well-known autostereoscopic display in both of its variants provides the formation of a two-angle stereoscopic image with full-screen resolution in each of two angles at a working frame frequency F _min = 60 Hz without flickering stereo images. Images of both angles are formed simultaneously due to the simultaneous reproduction of two image elements in each display pixel FAPI based on polarization coding of the light flux with its subsequent decoding using static FPPB. Therefore, the image of each angle is reproduced in each of the two observation zones with a frame frequency of F _min = 60 Hz.

A disadvantage of the known autostereoscopic display [2] is a narrow region for observing stereo images, consisting of only two observation zones.

The aim of the invention is to expand the field of observation of stereo images with a minimum fold increase in the working frame frequency compared to the standard F _min .

The goal in the device (its first version) is achieved by the fact that the column-oriented dynamic amplitude parallax barrier, the center of each column of which is located at the intersection of K optical paths connecting the centers of the observation zones K with the centers of the K columns of the polarization image divider, is additionally introduced into the device at the intersection K of the optical paths connecting the K columns of the amplitude image adder with a spatial light source, and the stereo video source is made with dynamic synchronization output connected to the synchronization input of the dynamic amplitude parallax barrier.

The goal in the device (its second variant) is the introduction of a column-oriented dynamic amplitude parallax barrier, the center of each column of which is located at the intersection of K optical paths connecting the spatial light source with the centers of the columns of the phase-polarizing parallax barrier, or located at the intersection K optical paths connecting the centers K of the observation zones with the centers K of the corresponding columns of the amplitude image adder, and the source of the stereo video signal It executes the dynamic synchronization with outlet connected to the synchronization input amplitude dynamic parallax barrier.

In the device (in both its variants), the expansion of the stereo image observation area is achieved by increasing the number of observation zones by a factor of K with an increase in the frame frequency of only K / 2 times, which allows, for example, using the available 120 Hz liquid crystal matrices to form a 4-angle stereo image (instead of 2-angle in the prototype).

The invention is illustrated using the drawing, in the figures of which are presented.

FIG. 1 is a diagram of a multi-angle display (option 1) in the first particular embodiment (in xyz axonometry).

FIG. 2 is a cross section in the xz plane of a multi-angle display circuit (option 1) in a first particular embodiment.

FIG. 3 is a cross-section in the xz plane of a multi-angle display circuit (option 1) in a second particular embodiment.

FIG. 4 is a diagram of a multi-angle display (option 2) in the first particular embodiment (in xyz axonometry).

FIG. 5 is a cross-section in the xz plane of a multi-angle display circuit (option 2) in a first particular embodiment.

FIG. 6 is a cross section in the xz plane of a multi-angle display circuit (option 2) in a second particular embodiment.

FIG. 7 - the geometry of the optical paths in the xz plane of the 4-angle display circuit (option 1) in the first particular embodiment.

FIG. 8 is the geometry of the optical paths in the xz plane of the 8-angle display circuit (embodiment 1) in the first particular embodiment.

FIG. 9 is the geometry of the optical paths in the xz plane of the 4-angle display circuit (option 1) in a second particular embodiment.

FIG. 10 is the geometry of the optical paths in the xz plane of the 4-angle display circuit (option 2) in the first particular embodiment.

FIG. 11 - the geometry of the optical paths in the xz plane of the 4-angle display circuit (option 2) in a second particular embodiment.

FIG. 12-18 are specific examples of the implementation of optical components in various embodiments of the device.

FIG. 19-21 - illustration of the work (in two steps) of the structural diagram of the 4-angle display (option 1) in the first particular embodiment.

FIG. 22-26 - illustration of the work (in 4 steps) of the structural diagram of the 8-angle display (option 1) in the second private embodiment.

FIG. 27, 28 - illustration of the work (in two steps) of the structural diagram of the 4-angle display (option 2) in the first particular embodiment.

FIG. 29, 30 - illustration of the work (in two steps) of the structural diagram of the 4-angle display (option 2) in the second particular embodiment.

FIG. 31, 32 - illustration of the work (in two steps) of the structural diagram of the 4-angle display (option 2) in the second particular embodiment.

The device (option 1) in the first particular embodiment (Fig. 1, 2) contains a stereo-video signal source 1, a function block 2 and a spatial light source 3 located on the same optical axis, matrix-addressable amplitude-polarizing driver 4 matrixically addressed in M rows and N columns of images, a column-structured phase-polarization parallax barrier 5 and a column-addressable dynamic amplitude parallax barrier 6. The imaging device 4 of the amplitude-polarization image contains sequentially optical ki associated amplitude adder 4 ₁ images and polarizing splitter 4 ₂ image, the aperture mn-th element of the amplitude of the adder 4 ₁ image is optically coupled with the aperture mn-th element of the polarization splitter 4 ₂ image forming mn-th pixel generator 4 amplitude-polarized images where m = 1, 2, ..., M; n = 1, 2, ..., N. The electronic inputs of the amplitude adder 4 ₁ images and the polarization divider 4 ₂ images are connected to the outputs of the function block 2, the input of which is connected to the information output of the source 1 stereo video signal. Yield dynamic stereo video source 1 is connected to the synchronization input sync amplitude dynamic parallax barrier 6. The center (the central line of symmetry) of each column of phase-polarization parallax barrier 5 is situated at the intersection of pairs of optical paths extending from the centers of pairs of adjacent columns of the polarization splitter _{2 April} images. The center (center line of symmetry) of each column of the dynamic amplitude parallax barrier 6 is located at the intersection K of the optical paths connecting the centers K of the observation zones Z ₁ , ..., Z _K with the centers K of the columns of the polarization divider 4 ₂ images.

The device (option 1) in the second particular embodiment (Fig. 3) comprises a stereo-video signal source 1, a function block 2 and a spatial light source 3 located on the same optical axis, addressable in columns by a dynamic amplitude parallax barrier 6, matrix-addressable in M rows, and The amplitude-polarization image generator 4 and the column-structured static phase-polarization parallax barrier 5. The amplitude-polarization image generator 4 contains a sequence of columns Newly optically coupled amplitude adder 4 ₁ images and polarization divider 4 ₂ images. The center of each column of the phase-polarization parallax barrier 5 is located at the intersection K of the optical paths connecting the centers K of the observation zones Z ₁ , ..., Z _K with the centers K of the adjacent columns of the polarization divider 4 ₂ images. The center of each column of the dynamic amplitude parallax barrier 6 is located at the intersection K of optical paths connecting the centers K of adjacent columns of the amplitude adder 4 ₁ images with a spatial light source 1.

The device (option 2) in the first particular embodiment (Fig. 4, 5) contains a stereo-video signal source 1, a functional unit 2 and a spatial light source 3 located on the same optical axis, a dynamic amplitude parallax barrier 6, a static phase-polarization parallax structured in columns barrier 5 and matrix-addressable in M rows and N columns shaper 7 amplitude-polarization images. Shaper 7 amplitude-polarization images contains an amplitude adder 7 ₁ image and polarization divider 7 ₂ images. The aperture of the mnth element of the polarization divider 7 ₂ images is sequentially optically connected with the aperture of the mnth element of the amplitude adder 7 ₁ images, forming the mnth pixel of the imaging unit 7 of the amplitude-polarizing images. (For option 2 of the device, the optical communication sequence for the data of the mnth elements of the former 7 is the opposite of the same sequence of optical communication for the mnth elements of the former 4 in device 1). The center of each column of the phase-polarization parallax barrier 5 is located at the intersection of pairs of optical paths coming from the centers of pairs of adjacent columns of the polarization divider 7 ₁ images. The center of each column of the dynamic amplitude parallax barrier 6 is located at the intersection K of the optical paths connecting the centers K of the adjacent columns of the polarization divider 7 _{1 of the} image with the spatial light source 1.

The device (option 2) in the second particular embodiment (Fig. 6) contains a stereo-video signal source 1, a function block 2 and a spatial light source 3 located on the same optical axis, structured in columns by a phase-polarized parallax barrier 5, matrix-addressable in M lines and N columns, imaging device 7 of amplitude-polarizing images and dynamic amplitude parallax barrier 6. The center of each column of phase-polarizing parallax barrier 5 is at the intersection of pairs of optical paths Extending from the centers of pairs of adjacent columns of the polarization splitter _{1 July} images. The center of each column of the dynamic amplitude parallax barrier 6 is located at the intersection K of optical paths connecting the centers K of adjacent columns of the amplitude adder 7 ₂ images with the centers K of the observation zones Z ₁ , ..., Z _K.

The two-dimensional structural diagram in the xz plane (Fig. 2) of the display (option 1) in the first particular embodiment with 4 angles (Fig. 1) corresponds to the geometry of the optical paths shown in the simplified diagram of the display (Fig. 7) in the xz plane, passing through the m-th line of the shaper 4 of the amplitude-polarizing image. The spatial light source 3 is not shown in this diagram. Inside the rectangle corresponding to the source 1 of the stereo video signal, the signal values are shown supplied to each of the N elements (m1, m2, ..., mn, ... N) of the amplitude-polarizing image generator 4 corresponding to its mth row. The input of the function block 2 is connected to the information output of the stereo video signal source 1, the first and second outputs 2 ₁ and 2 _{2 of} which are connected to the electronic inputs of the amplitude adder 4 ₁ images and the polarization divider 4 ₂ images (which are not shown to simplify the circuit). The phase-polarizing parallax barrier 4 and the dynamic amplitude parallax barrier 6 are located frontally relative to the imaging device 4 of the amplitude-polarizing image. Solid lines of optical paths pass through the centers of open columns (indicated by open circles) of the dynamic amplitude parallax barrier 6, which correspond to the maximum optical transmission of its working layer (in state I of the circuit corresponding to cycle I) in the area of open columns. The dashed lines show the optical paths passing through the centers of the closed columns (indicated by black circles) corresponding to the minimum (zero) optical transmission of the working layer of the dynamic amplitude parallax barrier 6 (in state I) in the region where the closed columns are located. The optical state of the columns (open or closed) of the optical part of the dynamic amplitude parallax barrier 6 is determined by the magnitude of the control voltage at the output of the electronic part of the amplitude parallax barrier 6. The phase-polarization parallax barrier is static (its optical state does not change).

The state (cycle) of scheme II corresponds to the complementary state of the dynamic amplitude parallax barrier 6 (all light circles are replaced by black and vice versa) with the corresponding complementary geometry of the optical paths (all solid lines of the optical paths are replaced by dashed ones and vice versa).

The simplified display scheme (option 1) in the first particular embodiment with 4 angles is calculated from the ratios determined by the similarity of the triangles marked by shading in FIG. 7

where a is the period of arrangement of the columns of the shaper 4 amplitude-polarizing images,

- период чередования столбцов и позиция фазо-поляризационного параллаксного барьера 5, характеризующегося фронтальным (front) расположением относительно формирователя 4 амплитудно-поляризационных изображений, расположение которого соответствует начальной позиции (относительно которой определяются позиции всех остальных компонентов устройства),

- the alternation period of the columns and the position of the phase-polarizing parallax barrier 5, characterized by a front (front) location relative to the imaging device 4 amplitude-polarization images, the location of which corresponds to the initial position (relative to which the positions of all other components of the device are determined),

- период расположения столбцов и позиция динамического амплитудного параллаксного барьера 6, характеризующегося фронтальным расположением относительно формирователя 4 амплитудно-поляризационных изображений,

- the period of the columns and the position of the dynamic amplitude parallax barrier 6, characterized by a frontal location relative to the imaging unit 4 of the amplitude-polarizing images,

D is the distance from the imaging unit 4 of the amplitude-polarizing images to the centers of the observation zones Z ₁ -Z _K ,

b is the distance between the centers of the eyes of the observer (eye base, on average b = 65 mm).

для стерео видеосигналов, находящихся в контуре области данной фигуры чертежа, соответствующем источнику 1 стереовидеосигнала (и на всех последующих фигурах с изображением контура источника 1 стереовидеосигнала), соответствуют полным обозначениям вида отношений яркостей

mn-х элементов изображений ракурсов, при этом k и

- текущие номера ракурсов, равные номерам зон наблюдения Z_k и

каждый из которых пробегает диапазон значений от 1 до К, где К - полное число ракурсов. Например, обозначение

соответствует отношению яркостей

Brief designations of the form

for stereo video signals that are in the outline of the area of this drawing figure corresponding to the source 1 of the stereo video signal (and in all subsequent figures with the image of the outline of the source of 1 stereo video signal), correspond to the full designations of the form of relations of brightness

mn-x elements of image views, with k and

- the current angle numbers equal to the numbers of the observation zones Z _k and

each of which runs through a range of values from 1 to K, where K is the total number of angles. For example, the designation

corresponds to the ratio of brightness

The two-dimensional structural diagram in the xz plane (FIG. 2) of the display (option 1) in the second particular embodiment with 8 angles (FIG. 1) corresponds to the simplified optical diagram shown in FIG. 8. The phase-polarization parallax barrier 5 and the dynamic amplitude parallax barrier 6 are located frontally relative to the imaging device 4 of the amplitude-polarization image. The scheme is characterized by 4 (I-IV) optical states in 4 cycles. Light and dark circles denote columns 5 groups amplitude dynamic parallax barrier 6, where the notation I _{i i} -IV (when i = 1, 2, 3, 4, 5) for each value of i corresponds to the group of columns, one of which is open, and the remaining three are closed in each of the 4 optical states of the circuit. The solid lines show the optical paths corresponding to the open columns I ₁ -I ₄ for the optical state of the I circuit. In four rows above, 4 sets of input dividing signals (corresponding to 4 optical states of the circuit) are shown for the polarization adder 41, which is a part of the amplitude-polarization image generator 4. The calculation of the scheme is carried out in accordance with equations (1).

The two-dimensional structural diagram in the xz plane (FIG. 3) of the 4-angle display (option 1) in the second particular embodiment corresponds to the optical path geometry represented by the simplified diagram in FIG. 9. The phase-polarization parallax barrier 4 is characterized by a frontal and the dynamic amplitude parallax barrier 6 by a rear location relative to the amplitude-polarization image imaging unit 4. The remaining notation in the diagram of FIG. 9 correspond to the notation in the circuit of FIG. 7.

The geometry of the circuit is calculated from the relations determined by the similarity of the triangles indicated by the hatching in FIG. 9

;

(2)

;

(2)

- период расположения столбцов динамического амплитудного параллаксного барьера,

- расстояние от динамического амплитудного параллаксного барьера до формирователя амплитудно-поляризационных изображений,

- период расположения столбцов фазо-поляризационного параллаксного барьера,

- расстояние от фазо-поляризационного параллаксного барьера до формирователя амплитудно-поляризационных изображений. Остальные обозначения в уравнениях (2) соответствуют обозначениям в уравнениях (1).Where

- the period of the columns of the dynamic amplitude parallax barrier,

- the distance from the dynamic amplitude parallax barrier to the imager amplitude-polarization images,

- the period of the columns of the phase-polarization parallax barrier,

- the distance from the phase-polarization parallax barrier to the imaging amplitude-polarization images. The remaining notation in equations (2) corresponds to the notation in equations (1).

The two-dimensional structural diagram in the xz plane (FIG. 5) of the 4-angle display (option 2) in the first particular embodiment (FIG. 4) corresponds to the optical path geometry represented by the simplified diagram in FIG. 10. The phase-polarization parallax barrier 4 and the dynamic amplitude parallax barrier 6 are characterized by a rear location relative to the imaging device 4 of the amplitude-polarization image.

The geometry of the circuit is calculated from the relations determined by the similarity of the triangles indicated by the hatching in FIG. 10

All designations in equations (1) are similar to those in equations (1) and (2).

The two-dimensional structural diagram in the xz plane (FIG. 6) of the 4-angle display circuit (embodiment 2) in the second particular embodiment corresponds to the optical path geometry represented by the simplified diagram in FIG. 11. The phase-polarization parallax barrier 4 is characterized by a rear, and the dynamic amplitude parallax barrier 6 is characterized by a frontal position relative to the imaging device 4 of the amplitude-polarization image.

The geometry of the circuit is calculated from the relations determined by the similarity of the triangles indicated by the hatching in FIG. eleven

All designations in equations (1) are similar to those in equations (1) - (3).

The symbols of the elements of the amplitude-polarization image driver 4, the phase-polarization parallax barrier 5 and the dynamic amplitude parallax barrier 6 with different sequences of optical coupling of the components for various particular embodiments of the device are shown in FIG. 12-15. The sequence of optically coupled components is illustrated in FIG. 12 for embodiment 1 of the device (FIG. 1, 2) in its first particular embodiment with an optical design with 4 (FIG. 7) and 8th (FIG. 8) angles, FIG. 13 for embodiment 1 of the device in a second particular embodiment with a 4-angle optical design (FIG. 9), FIG. 14 and FIG. 15 for device variant 2 in its first and second particular embodiments with the 4-angle optical circuits shown in FIG. 10 and FIG. 11 respectively. Elements of the amplitude adder 4 ₁ images are made in the form of electrically controlled modulators of light intensity. Elements of the polarization divider 4 ₂ images are made in the form of electrically controlled modulators of the phase of polarized light or in the form of optically active modulators (rotators of ellipses of polarization of light without changing their shape) in analog form, i.e. with grayscale control of the phase or polarization state in accordance with the rms amplitude of the stereo video signal. The elements of the phase-polarization parallax barrier 5 are made in the form of an electrically controlled phase of polarized light or in the form of optically active modulators (rotators of ellipses of polarization of light without changing their shape) in binary form, for example, to obtain phase 0 or π values in transmitted light to obtain two mutually orthogonal states of polarization in the output light from the polarization final filtration in which the luminous flux in the output of one element _{1 May} phase-polarization parallax barrier 5 apportionment on the horizontal component (in the x-axis direction) in the plane of the drawing (element 5 _{1 is} indicated by a shaded horizontal arrow in Fig. 12 and in all subsequent figures of the drawing with the image of a phase-polarizing parallax barrier 5), and the light flux is highlighted at the output of another element 5 ₂ with a vertical (relative to the drawing plane) polarizing component (element 5 _{2 is} indicated by a shaded circle in Fig. 12-15 and in all subsequent figures of the drawing with the image of a phase-polarizing parallax barrier 5).

Examples of specific embodiments of the elements of the amplitude-polarization image generator 4, the phase-polarization parallax barrier 5 and the dynamic amplitude parallax barrier 6 are illustrated in FIG. 16-18. FIG. 16 illustrates an example of a specific implementation of the columns of the amplitude adder 4 ₁ , 7 _{1 of the} images, the dynamic amplitude parallax barrier 6 based on the optoelectronic structure 8, FIG. 17 is an example of a specific implementation of the columns of the polarization divider 4 ₂ , 7 ₂ images in the form of an optoelectronic structure 9, FIG. 18 is an example of a specific implementation of the columns of the phase-polarization parallax barrier 5 in the form of an optoelectronic structure 10.

The optoelectronic structure 8 (Fig. 16) contains two glass substrates 11 ₁ , 11 ₂ , on the inner sides of which (facing each other) are applied transparent transparent column electrodes 12, of which 12 ₁ , 12 ₂ on one glass substrate and 12 ₃ , 12 ₄ on the other, in the gap between which there is a working electro-optical substance - an anisotropic layer of a nematic liquid crystal (NLC layer) 13, whose molecules in the initial state are oriented in one chosen direction, forming a single NLC crystal with the axis oo for an ordinary beam and with axis e for an extraordinary ray. An external linear polarizer 14 ₁ with a direction _of linear polarization 15 ₁ in the drawing plane (shown by the arrow in Fig. 16) is located at the optical input of the optoelectronic structure 8, at the optical output of which there is a polarizer 14 ₂ with a direction 15 _{2 of} linear polarization orthogonal to the plane of the drawing (indicated by a cross in the circle in Fig. 16), orthogonal to the direction 15 ₂ . The optoelectronic structure 9 (Fig. 17) contains two glass substrates 16 ₁ , 16 ₂ , on the inner sides of which (facing each other) addressable transparent column electrodes 17 are deposited, of which 17 ₁ , 17 ₂ on one glass substrate and 17 ₃ , 17 ₄ on the other, in the gap between which is the NLC-oriented layer 18. The optoelectronic structure 10 (Fig. 18) contains two glass substrates 19 ₁ , 19 ₂ , on the inner sides of which (facing each other) addressable transparent column electrodes 20, of which 20 ₁ , 20 ₂ on one glass vile and 20 ₃ , 20 ₄ on the other, in the gap between which is oriented NLC layer 21. At the output there is a linear polarizer with the direction of linear polarization shown by the arrow. Oriented SLC layers 13, 18, 21 provide phase modulation of light in the range from 0 to π depending on the magnitude of the control electric voltage supplied to the transparent electrodes 12, 17, 20.

ракурсов 3D сцены подается на функциональный блок 2, с выхода 2₁ которого сигнал с информацией о суммы яркостей

изображений подается на электронный вход амплитудного сумматора 4₁ изображений, а сигнал с информацией об отношении яркостей

изображений подается с выхода 2₂ на электронный вход поляризационного делителя 4₂ изображений, где

и

- яркости mn-ых элементов изображений, воспроизводимых в mn-м пикселе формирователя 4 амплитудно-поляризационных изображений, k и

соответствуют k и

ракурсам 3D сцены, воспроизводимым в Z_k и Z_k+1 зонах наблюдения соответственно (k=1, 2, …, K;

). При этом сигнал синхронизации с выхода динамической синхронизации источника 1 стереовидеосигнала подается на вход синхронизации динамического амплитудного параллаксного барьера 6. Световой поток от источника 3 света модулируется по интенсивности и по поляризации (состоянию поляризации) формирователем 4 амплитудно-поляризационных изображений и далее проходит через апертуру фазо-поляризационного параллаксного барьера 5 и апертуру динамического амплитудного параллаксного барьера 6, у которого в такте I работы открыты только те столбцы, которые пропускают свет только в Z_k и Z_k+1 зоны наблюдения. Величины интенсивности света, проходящего в Z_k и Z_k+1 зоны наблюдения, составляют

и

Передаточная характеристика для пары k и

сквозных оптоэлектронных каналов устройства (от входа функционального блока 2 по среднеквадратичному значению амплитуды стереовидеосигнала до значений интенсивностей света в Z_k и Z_k+1 зонах наблюдения) настроена на линейную передачу суммы яркостей

изображений в сумме величин

интенсивности света и линейной передаче отношения

яркостей изображений в отношении величин

интенсивностей светаThe device operates as follows. In the K-angle display (option 1) in the first particular embodiment (Fig. 1, 2), in the cycle I of the device’s operation, the electronic information signal from the source 1 of the stereo-video signal with information about the images k and

perspectives of the 3D scene is fed to the function block 2, from the output 2 _{1 of} which a signal with information about the sum of the brightness

image is fed to the electronic input of the amplitude adder 4 ₁ image, and a signal with information about the ratio of brightness

images is fed from output 2 ₂ to the electronic input of a polarization divider 4 ₂ images, where

and

- the brightness of the mnth image elements reproduced in the mnth pixel of the imaging device 4 of the amplitude-polarizing images, k and

correspond to k and

3D scene angles reproduced in Z _k and Z _{k + 1} observation zones, respectively (k = 1, 2, ..., K;

) In this case, the synchronization signal from the dynamic synchronization output of the stereo-video signal source 1 is fed to the synchronization input of the dynamic amplitude parallax barrier 6. The luminous flux from the light source 3 is modulated in intensity and polarization (polarization state) by the amplitude-polarization imager 4 and then passes through the phase-aperture the polarization parallax barrier 5 and the aperture of the dynamic amplitude parallax barrier 6, for which only columns are open in step I of the work which transmit light only in Z _k and Z _{k + 1} observation zones. The values of the intensity of light passing in Z _k and Z _{k + 1 of} the observation zone are

and

Transfer characteristic for pair k and

end-to-end optoelectronic channels of the device (from the input of function block 2 by the rms amplitude of the stereo video signal to the light intensities in Z _k and Z _{k + 1} observation zones) is configured to linearly transmit the sum of the brightnesses

images in total

light intensity and linear transmission ratio

brightness of images in relation to values

light intensities

From (5) follows the relation

и

интенсивности света, реализованные в такте I работы в Z_k и Z_k+1 зонах наблюдения, линейно связаны с яркостями

и

соответствующих ракурсов 3D сцены. Поскольку в процессе аналогичной работы устройства в каждом последующем такте также одновременно воспроизводятся изображения пары ракурсов, то изображения всех К ракурсов будут воспроизведены за K/2 тактов работы устройства.meaning that the quantities

and

light intensities realized in step I of the work in Z _k and Z _{k + 1} observation zones are linearly related to the brightnesses

and

corresponding angles of a 3D scene. Since in the process of similar operation of the device, images of a pair of angles are also simultaneously reproduced in each subsequent clock cycle, images of all K angles will be reproduced in K / 2 clock cycles of the device.

The linearization of the transfer characteristics of all optoelectronic channels is carried out using, for example, the calibration method [2], in which, according to the results of measuring the initial nonlinear transfer characteristics (from the electronic input of the driver 4 amplitude-polarization images to the optical outputs of the observation zones), the linearization of the final transfer characteristics (from electronic input of the functional unit 2 to the optical outputs of the observation zones) due to the implementation of the functional unit 2 fun reciprocal or inverse with respect to the initial nonlinearity functions obtained by calibration measurements of the transfer functions of the source optoelectronic channels.

In general, the K-angle display works similarly in all embodiments shown in FIG. 3-6.

In more detail, the operation of the device is considered on the example of options for its implementation with the formation of 4 and 8 angles of the displayed 3D scene.

The operation of the device (option 1) in the first particular embodiment with the formation of 4-angles of the displayed 3D scene (Fig. 7) has two cycles (cycle I and cycle II).

(где k и

пробегают значения от 1 до 4), которое представлено на нижней строчке обозначений сигналов в контуре источника 1 стерео видеосигнала, соответствующей циклу I. На mn-й элемент амплитудного сумматора 4₂ изображений (находящегося в составе формирователя 4 амплитудно-поляризационных изображений и вход которого подключен к выходу 2₂ функционального блока) подается сумма яркостей

обозначение которой не показано на чертеже для упрощения). При этом открыты для прохождения света те столбцы динамического амплитудного параллаксного барьера 6, которые обозначены светлыми кружками в центрах его столбцов. Сплошными линиями обозначены парциальные световые потоки, проходящие в данном цикле через открытые столбцы динамического амплитудного параллаксного барьера 6. Закрытые в данном цикле столбцы столбцы динамического амплитудного параллаксного барьера 6 обозначены черными кружками в центрах его столбцов. Пунктирными линиями обозначены парциальные световые потоки, блокированные в данном цикле закрытыми столбцами динамического амплитудного параллаксного барьера 6. В цикле II на mn-й элемент поляризационного делителя 4₁ изображений (находящегося в составе формирователя 4 амплитудно-поляризационных изображений) подается отношение яркостей

представленное на верхней строчке обозначений сигналов в контуре источника 1 стереовидеосигнала, соответствующей циклу I. По окончании двух циклов работы в каждой из 4-х зон наблюдения Z₁-Z₄ формируется 4-ракурсное изображение соответствующего ракурса 3D сцены с полноэкранным разрешением, соответствующему полному числу N дисплейных пикселей каждой строке формирователя 4 амплитудно-поляризационных изображений.In the cycle I in mn-th element of the polarization splitter 4 ₁ images (located in the generator part 4 amplitude-polarization image and the input of which is connected to the output of the function block January ₂₎ is fed brightness ratio

(where k and

values from 1 to 4), which are presented on the bottom line of the signal designations in the source circuit 1 of the stereo video signal corresponding to cycle I. The mn-th element of the amplitude adder 4 ₂ images (which is part of the shaper 4 amplitude-polarized images and the input of which is connected to output 2 _{2 of the} functional block) the sum of the brightness

the designation of which is not shown in the drawing for simplicity). At the same time, those columns of the dynamic amplitude parallax barrier 6, which are indicated by light circles in the centers of its columns, are open for the passage of light. The solid lines indicate the partial light flux passing in this cycle through the open columns of the dynamic amplitude parallax barrier 6. The columns closed in this cycle, the columns of the dynamic amplitude parallax barrier 6 are indicated by black circles in the centers of its columns. The dashed lines indicate the partial light fluxes blocked in this cycle by closed columns of the dynamic amplitude parallax barrier 6. In cycle II, the brightness ratio is applied to the mnth element of the polarization divider 4 _{1 of the} images (included in the shaper 4 of the amplitude-polarization images)

presented on the top line of signal designations in the source 1 contour of the stereo video signal corresponding to cycle I. At the end of two cycles of operation in each of the 4 observation zones Z ₁ -Z ₄ , a 4-view image of the corresponding angle of the 3D scene with a full-screen resolution corresponding to the total number is formed N display pixels of each line of the shaper 4 amplitude-polarizing images.

и

двух изображений так, что пикселем m2 амплитудного сумматора 4₁ изображений модулируется интенсивность света в соответствии с суммой

а пикселем m2 поляризационного делителя 4₂ изображений затем модулируется также и состояние поляризации проходящего света в соответствии с отношением

Модуляция интенсивности света в соответствии с суммой яркостей

(с получением интенсивности

) осуществляется оптоэлектронной структурой 8₁, в которой НЖК слой расположен между прозрачными управляющими электродами 25, 26, а на оптическом входе и выходе оптоэлектронной структуры 8 расположены скрещенные линейные поляризаторы 25 (с направлением 25₁ поляризации) и 26 (с направление 26₁ поляризации). Модуляция поляризации (состояния поляризации) света осуществляется с помощью оптоэлектронной структуры 8₁ (в которой НЖК слой 27 расположен между прозрачными электродами 28, 29) за счет модуляции величины фазы света на величину Δ^m2 (посредством эффекта электрически управляемого двупреломления) или за счет поворота эллипса (вектора) поляризации на угол ϕ^m2 (посредством эффекта электрически управляемой оптической активности). В результате (диаграмма A) формируется парциальный световой поток с интенсивностью

и эллиптической поляризацией, в форме которой заключена информация об отношении яркостей

так, что проекция эллипса на координату x (фиг. 20, диаграмма A) соответствует яркости

а проекция на координату y соответствует яркости

Затем световой поток проходит два столбца (Ξ₁ и Ξ₃) фазо-поляризационного параллаксного барьера 5, в первом из которых фазовый сдвиг равен 0, а во втором равен π за счет соответствующих уровней управляющего напряжения, подаваемых в оптоэлектронной структуре 10₁ с НЖК слоем 30 на прозрачные адресные электроды 31₁-31₄. На выходе левого (по рисунку) столбца оптоэлектронной структуры 10₁ световой поток остается с прежним состоянием поляризации (диаграмма B), а на выходе правого столбца эллипс поляризации повернут на 90° (диаграмма C). В результате в левом столбце проекция поляризации левого парциального светового потока на ось x соответствует яркости

а в правом столбце проекция поляризации правого парциального светового потока на ось x соответствует яркости

(подробнее см. диаграммы B и C на фиг. 20). Далее осуществляется поляризационная фильтрация обоих парциальных световых потоков с помощью поляризационного фильтра 32 с направлением 32₁ линейной поляризации с получением двух парциальных световых потоков с линейной поляризацией и с величинами интенсивности

и

соответственно. Оба этих потока пропускаются соответственно в 1-ю и 3-ю зоны наблюдения за счет открытых соответствующих столбцов T₁ и T₃ динамического амплитудного параллаксного барьера 6, которые выполнены в виде оптоэлектронной структуры 10₂, содержащей НЖК слой 33 между прозрачными адресными электродами 34₁, 34₂, 36, 36 и поляризатор 37 с направлением 37₁ линейной поляризации. В итоге аналогичной работы в цикле I остальных пикселей формирователя 4 амплитудно-поляризационных изображений, элементов фазо-поляризационного параллаксного барьера 4 и открытых столбцов динамического амплитудного параллаксного барьера 6 в зонах Z₁ и Z₃ формируются все четные элементы изображений 1-го и 3-го ракурсов отображаемой 3D сцены, а в зонах Z₁ и Z₃ - все нечетные элементы изображений.In more detail, the simultaneous formation of a pair of image elements in two cycles is illustrated in FIG. 19-21. In cycle I (Fig. 19), in the pixel m _{2 of the} shaper 4 of the amplitude-polarizing images, elements are simultaneously reproduced

and

two images so that the pixel m2 of the amplitude adder 4 ₁ image modulates the light intensity in accordance with the sum

and the pixel m2 of the polarization divider 4 _{2 of the} images is then modulated also the state of polarization of the transmitted light in accordance with the ratio

Light intensity modulation according to the sum of luminances

(with getting intensity

) is carried out by the optoelectronic structure 8 ₁ , in which the NLC layer is located between the transparent control electrodes 25, 26, and at the optical input and output of the optoelectronic structure 8 there are crossed linear polarizers 25 (with a polarization direction 25 ₁ ) and 26 (with a polarization direction 26 ₁ ) . The polarization (polarization state) of the light is modulated using an optoelectronic structure 8 ₁ (in which the NLC layer 27 is located between the transparent electrodes 28, 29) by modulating the phase of the light by Δ ^m2 (through the effect of electrically controlled birefringence) or by rotating the ellipse (vector) in the polarization angle φ ^m2 (by the effect of electrically controlled optical activity). As a result (diagram A), a partial luminous flux with intensity

and elliptical polarization, in the form of which information about the brightness ratio is enclosed

so that the projection of the ellipse onto the x coordinate (Fig. 20, diagram A) corresponds to the brightness

and the projection on the y coordinate corresponds to brightness

Then, the light flux passes through two columns (Ξ ₁ and Ξ ₃ ) of the phase-polarization parallax barrier 5, in the first of which the phase shift is 0, and in the second it is π due to the corresponding control voltage levels supplied in the optoelectronic structure 10 ₁ with an NLC layer 30 to transparent address electrodes 31 ₁ -31 ₄ . At the output of the left (according to the figure) column of the optoelectronic structure 10 _{1, the} luminous flux remains with the previous state of polarization (diagram B), and at the output of the right column the polarization ellipse is rotated 90 ° (diagram C). As a result, in the left column, the projection of the polarization of the left partial light flux onto the x axis corresponds to the brightness

and in the right column, the projection of the polarization of the right partial light flux onto the x axis corresponds to the brightness

(for more details see diagrams B and C in Fig. 20). Next, polarization filtering of both partial light fluxes is carried out using a polarizing filter 32 with a direction _of linear polarization 32 ₁ to obtain two partial light fluxes with linear polarization and with intensity values

and

respectively. Both of these flows are passed into the 1st and 3rd observation zones, respectively, due to the open corresponding columns T ₁ and T _{3 of the} dynamic amplitude parallax barrier 6, which are made in the form of an optoelectronic structure 10 ₂ containing an NLC layer 33 between the transparent address electrodes 34 ₁ , 34 ₂ , 36, 36 and a polarizer 37 with a direction _of linear polarization 37 ₁ . As a result of similar work in cycle I of the remaining pixels of the imaging device 4 of the amplitude-polarizing images, elements of the phase-polarizing parallax barrier 4 and open columns of the dynamic amplitude parallax barrier 6 in zones Z ₁ and Z ₃ , all even image elements of the 1st and 3rd angles of the displayed 3D scene, and in zones Z ₁ and Z ₃ - all the odd image elements.

и

двух изображений так, что пикселем m2 амплитудного сумматора 4₁ изображений модулируется интенсивность света в соответствии с суммой

а пикселем m2 поляризационного делителя 4₂ изображений затем модулируется состояние поляризации проходящего света в соответствии с отношением

Модуляция интенсивности света в соответствии с суммой яркостей

(с получением интенсивности

) осуществляется оптоэлектронной структурой 8₁. Модуляция поляризации (состояния поляризации) света осуществляется с помощью оптоэлектронной структуры 8₁. Затем световой поток проходит два столбца (Ξ₂ и Ξ₄) фазо-поляризационного параллаксного барьера 5, в первом из которых фазовый сдвиг равен 0, а во втором равен π. Далее осуществляется поляризационная фильтрация обоих парциальных световых потоков с помощью поляризационного фильтра 32 с получением величин яркостей

и

которые пропускаются соответственно в 2-ю и 4-ю зоны наблюдения за счет открытых соответствующих столбцов T₂, T₄ динамического амплитудного параллаксного барьера 6. Аналогично в цикле II в зонах Z₂ и Z₄ формируются все четные элементы изображений 2-го и 3-го ракурсов отображаемой 3D сцены, а в зонах Z₁ и Z₃ - все нечетные элементы изображений.In cycle II (Fig. 21) in pixel m2 of the imaging unit 4 of the amplitude-polarizing images, elements are simultaneously reproduced

and

two images so that the pixel m2 of the amplitude adder 4 ₁ image modulates the light intensity in accordance with the sum

and the pixel m2 of the polarization divider 4 ₂ images then modulates the state of polarization of the transmitted light in accordance with the ratio

Light intensity modulation according to the sum of luminances

(with getting intensity

) is carried out by the optoelectronic structure 8 ₁ . The polarization (polarization state) of light is modulated using an optoelectronic structure 8 ₁ . Then the luminous flux passes through two columns (Ξ ₂ and Ξ ₄ ) of the phase-polarization parallax barrier 5, in the first of which the phase shift is 0, and in the second it is π. Next, polarization filtering of both partial light fluxes is carried out using a polarization filter 32 to obtain brightness values

and

which are passed into the 2nd and 4th observation zones, respectively, due to the open corresponding columns T ₂ , T _{4 of the} dynamic amplitude parallax barrier 6. Similarly, in cycle II, all even image elements of the 2nd and 3 are formed in zones Z ₂ and Z ₄ -th angles of the displayed 3D scene, and in zones Z ₁ and Z ₃ - all the odd image elements.

As a result, for both cycles of operation, the device forms 4 observation zones with full-screen image resolution in each zone (in each corresponding aspect of the displayed 3D scene).

The operation of the device (option 1) in the first particular embodiment with an 8-angle optical circuit (FIG. 8) is illustrated in FIG. 22-26, which show the state of the optical circuit for each of the four (I-IV) cycles of the device (Fig. 22-25) and the final table (Fig. 26) formed over 4 cycles of image elements in all areas. The operation of all the pixels of the driver 4 amplitude-polarization images, phase-polarization parallax barrier 5 and the dynamic amplitude parallax barrier 6 is similar to their work on the circuits shown in FIG. 19-21. As a result, over 4 cycles of operation, the device forms 8 observation zones with full-screen image resolution in each zone (in each corresponding aspect of the displayed 3D scene).

в пикселе m2 формирователя 4 амплитудно-поляризационных изображений, выполненном на оптоэлектронной структуре 8₁, содержащей пару прозрачных адресных электродов 42₁-42₂ НЖК слой 43 и поляризатор 43₁ с направлением 43₂ линейной поляризации. Затем модулируется состояние поляризации проходящего света в пикселе m2 поляризационного делителя 4₂ изображений в соответствии с отношением

(диаграмма A) с последующим получением двух парциальных световых потоков, бинарно модулируемых по состоянию поляризации в столбцах Ξ₁ и Ξ₃ фазо-поляризационного параллаксного барьера 5, выполненного на оптоэлектронной структуре 10₃, содержащей между прозрачными адресными электродами 46₁-46₄ НЖК слой 47 с получением двух взаимно-ортогональных состояний поляризации (диаграммы B и C). С помощью поляризатора 48 с направлением 48₁ линейной поляризации осуществляется поляризационная фильтрация двух парциальных световых потоков с получением двух парциальных выходных световых потоков с величинами

и

интенсивности (диаграммы D и C), попадающих в 1-ю и 3-ю зоны наблюдения соответственно. В итоге аналогичной работы в цикле I остальных пикселей формирователя 4 амплитудно-поляризационных изображений, элементов фазо-поляризационного параллаксного барьера 4 и открытых столбцов динамического амплитудного параллаксного барьера 6 в зонах Z₁ и Z₃ формируются все четные элементы изображений 1-го и 3-го ракурсов отображаемой 3D сцены, а в зонах Z₂ и Z₄ - все нечетные элементы изображений соответствующих ракурсов.The operation of the device (option 2) in the first particular embodiment is illustrated in FIG. 27 and 28. In cycle I (Fig. 27), two partial light fluxes are first formed using two open columns T ₁ and T _{3 of a} dynamic amplitude parallax barrier 6 made on an optoelectronic structure 10 ₂ containing an NLC layer 38 between the transparent address electrodes 39 ₁ -39 ₄ and between parallel polarizers 40 (with a direction of polarization 40 ₁ ) and 41 (with a direction of polarization 41 ₁ ). Then the light intensity is modulated

in pixel m2 of the amplitude-polarization image generator 4 made on an optoelectronic structure 8 ₁ containing a pair of transparent address electrodes 42 ₁ -42 ₂ NLC layer 43 and a polarizer 43 ₁ with a direction _of linear polarization 43 ₂ . Then, the polarized state of the transmitted light is modulated in the pixel m2 of the polarization divider 4 ₂ images in accordance with the ratio

(diagram A) with the subsequent production of two partial light fluxes binary modulated by the state of polarization in columns Ξ ₁ and Ξ _{3 of the} phase-polarization parallax barrier 5, made on an optoelectronic structure 10 ₃ containing between transparent address electrodes 46 ₁ -46 ₄ NLC layer 47 to obtain two mutually orthogonal polarization states (diagrams B and C). Using a polarizer 48 with a direction 48 _{1 of} linear polarization, polarization filtering of two partial light fluxes is performed to obtain two partial output light fluxes with values

and

intensities (diagrams D and C) falling into the 1st and 3rd observation zones, respectively. As a result of similar work in cycle I of the remaining pixels of the imaging device 4 of the amplitude-polarizing images, elements of the phase-polarizing parallax barrier 4 and open columns of the dynamic amplitude parallax barrier 6 in zones Z ₁ and Z ₃ , all even image elements of the 1st and 3rd angles of the displayed 3D scene, and in zones Z ₂ and Z ₄ - all the odd image elements of the corresponding angles.

In cycle 2, operation of the apparatus (option 2) in the first particular embodiment is carried out similarly (Fig. 28) with forming zones Z ₁ and Z ₃ are formed all the odd pixels of the 1st and 3rd angle displayed 3D scene, and in the zones Z ₁ and Z ₃ are all even image elements of the corresponding angles. As a result, for both cycles of operation, the device forms 4 observation zones with full-screen image resolution in each zone (in each corresponding aspect of the displayed 3D scene).

и

(диаграммы C и D) с использованием оптоэлектронной структуры 9₃, содержащей НЖК слой 55 между прозрачными адресными электродами 56₁, 56₂. Далее осуществляется поляризационная селекция с выделением проекций

и

и затем - их параллельная модуляция по интенсивности в пикселе m2 амплитудного сумматора 4₁ изображений в соответствии с суммой

с получением двух парциальных световых потоков в 2-й и 4-й зонах наблюдения с величинами интенсивности

и

The operation of the device (option 2) in the first particular embodiment is illustrated in FIG. 29 and 30. In cycle I (Fig. 29), two partial light fluxes are first formed using two open columns T ₂ and T _{4 of a} dynamic amplitude parallax barrier 6 made on an optoelectronic structure 10 ₄ containing an NLC layer 49 between the transparent address electrodes 50 ₁ -50 ₄ and between parallel polarizers 51 (with the polarization direction 51 ₁₎ and 52 (with the polarization direction 52 _1). Then, the state of polarization of light is modulated in columns Ξ ₂ and Ξ _{4 of the} phase-polarization parallax barrier 5, made on an optoelectronic structure 10 ₅ containing between transparent address electrodes 53 ₁ , 53 ₂ , 54 ₁ , 54 ₂ , NLC layer 55 to obtain two mutually -orthogonal polarization states (diagrams A and B). Then, the polarization of light is modulated in the pixel m2 of the polarization divider 4 ₂ images in accordance with the ratio

and

(diagrams C and D) using an optoelectronic structure 9 ₃ containing an NLC layer 55 between the transparent address electrodes 56 ₁ , 56 ₂ . Next, polarization selection is carried out with the selection of projections

and

and then their parallel modulation in intensity in pixel m2 of the amplitude adder 4 ₁ images in accordance with the sum

with obtaining two partial light fluxes in the 2nd and 4th observation zones with intensity values

and

In cycle 2, the operation of the device (option 2) in the first particular embodiment is carried out similarly (Fig. 30) with the formation of all even image elements of the 1st and 3rd angles of the displayed 3D scene in zones Z ₁ and Z ₃ , and in zones Z ₂ and Z ₄ are all odd image elements of the corresponding angles. As a result, for both cycles of operation, the device forms 4 observation zones with full-screen image resolution in each zone (in each corresponding aspect of the displayed 3D scene).

The operation of the device (option 2) in the second particular embodiment is illustrated in FIG. 31 and 32. In cycle I (Fig. 31) in the 1st and 3rd zones, all the odd elements of images of the 1st and 3rd angles are formed, in the 2nd and 4th zones - all the even elements of the images 2 4th and 4th angles. In cycle II (Fig. 32) in the 1st and 3rd zones, all even elements of images of the 1st and 3rd angles are formed, in the 2nd and 4th zones - all even elements of images of the 2nd and 4th angles. As a result, for both cycles of operation, the device forms 4 observation zones with full-screen image resolution in each zone (in each corresponding aspect of the displayed 3D scene).

In the device in all embodiments, the work is carried out in K / 2 cycles using a K / 2-stroke dynamic amplitude parallax barrier. To generate a 4-angle stereo image, a frame frequency of 120 Hz is required, and to generate an 8-angle stereo image, a frame frequency of 240 Hz is required (at a frame frequency of 60 Hz, the monoscopic image of the angles observed in each observation zone corresponding to the absence of flicker of the perceived stereo image).

The given options for a specific implementation of all optoelectronic components of the device are given as an example, which does not exclude the use of other options (in particular, combining the light source 1 with the amplitude adder 41 in a single design in the form of a matrix of LEDs).

LITERATURE

1. Yezhov V.A. With an autostereoscopic display with full-screen 3D resolution (its variants) and a way to control the active parallax barrier of the display. - RF patent No. 2490818, published. 08/20/2013, priority date 02/28/2012.

2. Yezhov V.A. The method of forming and observing stereo images with maximum spatial resolution and a device for its implementation (options). - RF patent No. 2408163, priority 25.12.2008, published. 12/27/2010.

Claims (6)

1. An autostereoscopic display with full-screen resolution in the image of each angle, containing a stereo video source, a functional block and a spatial light source located on the same optical axis, a matrix-addressable amplitude-polarization imaging device with M rows and N columns and phase-polarized parallax structured columns a barrier, wherein the imager of amplitude-polarization images contains an amplitude adder of images and a polarization divider of entities whose electronic inputs are connected to the corresponding outputs of the function block, the input of which is connected to the information output of the stereo-video signal source, and the aperture of the mnth element of the amplitude image adder is optically connected with the aperture of the mnth element of the polarization image divider, forming the mnth pixel of the amplitude polarization images, where m = 1, 2, ..., M; n = 1, 2, ..., N, and the center of each column of the phase-polarizing parallax barrier is located at the intersection of pairs of optical paths coming from the centers of pairs of adjacent columns of the polarizing image divider, characterized in that the dynamic amplitude parallax barrier, the source of the stereo video signal is made with a dynamic synchronization output connected to the synchronization input of the dynamic amplitude parallax barrier, the center of each column of which is located n at the intersection K of the optical paths passing through the centers K of the observation zones, each of the K optical paths passing through the center of the corresponding column of the phase-polarizing parallax barrier and the center of the corresponding pixel of the amplitude-polarization imager, where K is the number of observation zones, and K > 2. 2. The display according to claim 1, characterized in that along each of the K optical paths a spatial light source, a pixel of the amplitude-polarization image generator, a column of the phase-polarization parallax barrier, a column of the dynamic amplitude parallax barrier and the center of the corresponding observation zone are successively arranged. 3. The display according to claim 1, characterized in that a spatial light source, a column of a dynamic amplitude parallax barrier, a pixel of a generator of amplitude-polarization images, a column of a phase-polarization parallax barrier and the center of the corresponding observation zone are successively located along each of the K optical paths. 4. An autostereoscopic display with full-screen resolution in the image of each angle, containing a stereo video source, a functional block and a spatial light source located on the same optical axis, a phase-polarized parallax barrier structured in columns and an amplitude-polarized matrix-addressable in M rows and N columns image, which contains a polarizing image divider and an amplitude adder of images whose electronic inputs are connected to the corresponding outputs of the functional block, and the aperture of the mnth element of the polarization image divider is optically connected with the aperture of the mnth element of the amplitude image adder, forming the mnth pixel of the generator of amplitude polarization images, where m = 1, 2, ..., M; n = 1, 2, ..., N, and the center of each column of the phase-polarizing parallax barrier is at the intersection of pairs of optical paths going to the centers of the pairs of adjacent columns of the polarizing image divider, and the center of each column of the amplitude image adder is at the intersection K of optical paths, going into K observation zones, characterized in that the device additionally addresses a column-oriented dynamic amplitude parallax barrier, and the stereo video signal source is configured with a dynamic synchronization output connected to the synchronization input of the dynamic amplitude parallax barrier, the center of each column of which is located at the intersection of K optical paths passing through the centers K of the observation zones, each of the K optical paths passing through the center of the corresponding column of the phase-polarizing parallax barrier and the center of the corresponding shaper pixel amplitude polarization images, where K is the number of observation zones, and K> 2. 5. The display according to claim 4, characterized in that a spatial light source, a column of a dynamic amplitude parallax barrier, a column of a phase-polarization parallax barrier, a pixel of an amplitude-polarization imager and the center of the corresponding observation zone are successively located along each of the K optical paths. 6. The display according to claim 4, characterized in that a spatial light source, a column of a phase-polarizing parallax barrier, a pixel of a generator of amplitude-polarizing images, a column of a dynamic amplitude parallax barrier and the center of the corresponding observation zone are successively located along each of the K optical paths.

Images