WO2025007713A1 - Display apparatus, and display driving method and device therefor - Google Patents

Abstract

A display apparatus (100), comprising: multiple display panels (110-1, 110-2, 110-3, 110-4) which are stacked, wherein each display panel (110-1, 110-2, 110-3, 110-4) comprises a transparent substrate (120) and multiple pixel units (130) arranged in an array and located on one side of the transparent substrate (120), the pixel units (130) of different display panels (110-1, 110-2, 110-3, 110-4) are staggered, so that the pixel units (130) of each display panel (110-1, 110-2, 110-3, 110-4) are visible in the front view direction of the display apparatus (100). The display apparatus (100) has a first display mode. In this mode, the display content of each display panel (110-1, 110-2, 110-3, 110-4) depends on a diffuse spot distribution, in the corresponding display panel (110-1, 110-2, 110-3, 110-4), of each corresponding pixel point of three-dimensional film source content, wherein the corresponding pixel point is to be displayed on the corresponding display panel (110-1, 110-2, 110-3, 110-4); the diffuse spot distribution depends on the position of each corresponding pixel point in the display space of the display apparatus (100), and each corresponding pixel point to be displayed on the corresponding display panel (110-1, 110-2, 110-3, 110-4) and the position of each corresponding pixel point in the display space of the display apparatus (100) are obtained by dividing the stereoscopic space of the three-dimensional film source content on the basis of the relative position of the multiple display panels (110-1, 110-2, 110-3, 110-4).

Description

Display device, display driving method and device of display device Technical Field

The present disclosure relates to the field of display technology, and in particular to a display device, a display driving method and device for the display device, a computing device, a storage medium, and a computer program product.

Background Art

In recent years, three-dimensional (3D, 3 Dimensions) light field display technology has experienced rapid development. Some display devices such as grating naked-eye 3D are widely used. However, due to the existence of view connection areas in such display devices, these view connection areas often cause serious reverse vision problems, thus forming reverse vision areas. In addition, the existence of view connection areas in such display devices leads to the common problems of small visible range and low stereo resolution. Transparent display panels (for example, transparent LED screens) have good transparency and can realize the display of spatial point pixels. This feature is very consistent with the needs and applications of 3D light field display technology. However, how to use transparent display panels to realize 3D light field display, solve the existing reverse vision area problem, improve the small visible range, and significantly reduce the stereo resolution are technical problems that need to be solved urgently.

Summary of the invention

In view of this, the present disclosure provides a display device, a display driving method and device for the display device, a computing device, a storage medium, and a computer program product, which are expected to overcome some or all of the above-mentioned defects and other possible defects.

According to a first aspect of the present disclosure, a display device is provided, characterized in that it comprises: a plurality of display panels arranged in a stacked manner, each display panel comprising a transparent substrate and a plurality of pixel units arranged in an array on one side of the transparent substrate, the pixel units of different display panels being arranged in a staggered manner so that the pixel units of each display panel are visible in the normal viewing direction of the display device; wherein the display device has a first display mode, in which the display content of each display panel depends on the diffuse spot distribution of each corresponding pixel point of a three-dimensional film source content to be displayed on the corresponding display panel on the corresponding display panel, the diffuse spot distribution of each corresponding pixel point on the corresponding display panel depends on the position of each corresponding pixel point in the display space of the display device, and wherein the three-dimensional film source content to be displayed on the corresponding display panel Each corresponding pixel point on the display panel and the position of each corresponding pixel point in the display space of the display device are obtained by dividing the stereoscopic space of the three-dimensional film source content according to the relative positions of the multiple display panels.

In some embodiments, the distance between each two adjacent display panels in the plurality of display panels is the same.

In some embodiments, the pixel units of all the multiple display panels are evenly arranged in orthographic projection on the transparent substrate of the display panel closest to the light emitting side of the display device.

In some embodiments, the number of the multiple display panels is q ² , where q is a positive integer greater than 1; the orthographic projections of the pixel units of all the multiple display panels on the transparent substrate of the display panel closest to the light emitting side of the display device are arranged in an array with a spacing of 1/q*j in the first direction and the second direction, where j is the spacing of the pixel units of each display panel and is a positive number; wherein the first direction and the second direction are directions parallel to the extension surface of the transparent substrate of the display panel closest to the light emitting side of the display device, and the first direction and the second direction are perpendicular to each other.

In some embodiments, among the multiple display panels, the pixel unit pitch of each of the display panels is the same.

In some embodiments, the image resolution of the 3D film source content matches the number of pixel units of the display panel.

In some embodiments, the 3D film source content is obtained by adjusting the resolution of the 3D original film source content, and the image resolution of the 3D original film source content does not match the number of pixel units of the display panel.

In some embodiments, the diffuse spot distribution of each pixel of the three-dimensional film source content on the display panel depends on the depth distance from each pixel to the corresponding display panel, and the depth distance from each corresponding pixel to the corresponding display panel is determined based on the position of each corresponding pixel in the display space of the display device.

In some embodiments, the diffuse spot distribution of each corresponding pixel point on the corresponding display panel depends on the first brightness value of each pixel unit of each corresponding pixel point in the diffuse spot area of the corresponding display panel, the diffuse spot area depends on the depth distance of each corresponding pixel point to the corresponding display panel, and for the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point, the first brightness value of each pixel unit of each corresponding pixel point in the diffuse spot area on the nth display panel is determined according to the following formula:

Wherein, s and k are respectively the horizontal plane coordinates of the display space of the corresponding pixel point A, _La is the brightness value of the corresponding pixel point A, _Px and _Py are respectively the pixel unit arrangement pitches of the display panel in the first and second directions, P1 _{(s+a, k+b)} is the first brightness value of the pixel unit on the plane of the nth display panel, which is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions, the nth display panel represents the corresponding display panel, and the nth display panel is the nth display panel among the multiple display panels that is between the light emitting side of the display device and the corresponding pixel point A and in the direction from the light emitting side of the display device to the corresponding pixel point A, Ln is the depth distance from the corresponding pixel point A to the nth display panel, the first direction and the second direction are directions parallel to the extension surface of the transparent substrate of the display panel, and the first direction and the second direction are perpendicular to each other, the horizontal plane of the display space is parallel to the extension surface of the transparent substrate of the display panel, and s, k, n, a, b, are integers greater than or equal to zero.

In some embodiments, the diffuse spot distribution of each corresponding pixel point in the corresponding display panel depends on the second brightness value of each pixel unit within the diffuse spot area of the corresponding display panel, and the second brightness value of each pixel unit is obtained by compensating the first brightness value of the corresponding pixel unit based on the transmittance of the display panel in the light emitting direction from the corresponding pixel point to the display device.

In some embodiments, the second brightness value is determined based on the first brightness value according to the following formula:

P2 _{(s+a, k+b)} = P1 _{(s+a, k+b)} / (T ₁ *T ₂ *…*T _n ), wherein P2 _{(s+a, k+b)} is the second brightness value of the pixel unit that is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions on the plane of the nth display panel, and T _n is the transmittance of the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point A.

In some embodiments, the display device has a second display mode, in which the display content of each display panel depends on the two-dimensional source content to be displayed on the corresponding display panel.

In some embodiments, the pixel unit includes a Mini-LED light-emitting chip or a Micro-LED light-emitting chip.

According to a second aspect of the present disclosure, a display driving method for a display device is provided, wherein the display device comprises a plurality of display panels arranged in a stacked manner, each display panel comprises a transparent substrate and a plurality of pixel units arranged in an array on one side of the transparent substrate, the pixel units of different display panels are arranged in a staggered manner so that the pixel units of each display panel are visible in a front-view direction of the display device, and the method comprises: in response to the display device being in a first display mode, acquiring three-dimensional film source content; dividing a stereoscopic space of the three-dimensional film source content according to the relative positions of the plurality of display panels to determine a position of each pixel point of the three-dimensional film source content in a display space of the display device and at least one display panel on which each pixel point is to be displayed; determining, according to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device, a diffuse spot distribution of a corresponding display panel of each corresponding pixel point in at least one display panel to be displayed; and determining display content of each display panel in a plurality of display panels according to the diffuse spot distribution of a corresponding display panel of each corresponding pixel point in at least one display panel to be displayed.

In some embodiments, based on the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device, the diffuse spot distribution of each corresponding pixel point in the corresponding display panel of at least one display panel to be displayed is determined, including: based on the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device, determining the depth distance from each corresponding pixel point to the corresponding display panel of at least one display panel to be displayed; based on the depth distance from each corresponding pixel point to the corresponding display panel of at least one display panel to be displayed, determining the diffuse spot distribution of each corresponding pixel point in the corresponding display panel of at least one display panel to be displayed.

In some embodiments, determining the dispersion spot distribution of each corresponding pixel point in the corresponding display panel of at least one display panel to be displayed according to the depth distance from each corresponding pixel point to the corresponding display panel of at least one display panel to be displayed includes:

Determine, according to the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, a diffuse spot area of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed;

For the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point, the first brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point on the nth display panel is determined according to the following formula:

as well as

Based on the first brightness value of each pixel unit, determining the diffuse spot distribution of each corresponding pixel point on the corresponding display panel;

Wherein, s and k are respectively the horizontal plane coordinates of the display space of the corresponding pixel point A, _La is the brightness value of the corresponding pixel point A, _Px and _Py are respectively the pixel unit arrangement pitches of the display panel in the first and second directions, P1 _{(s+a, k+b)} is the first brightness value of the pixel unit on the plane of the nth display panel, which is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions, the nth display panel represents the corresponding display panel, and the nth display panel is the nth display panel among the multiple display panels that is between the light emitting side of the display device and the corresponding pixel point A and in the direction from the light emitting side of the display device to the corresponding pixel point A, Ln is the depth distance from the corresponding pixel point A to the nth display panel, the first direction and the second direction are directions parallel to the extension surface of the transparent substrate of the display panel, and the first direction and the second direction are perpendicular to each other, and the horizontal plane of the display space is parallel to the extension surface of the transparent substrate of the display panel, wherein s, k, n, a, b, are integers greater than or equal to zero.

In some embodiments, based on the first brightness value of each pixel unit, the diffuse spot distribution of each corresponding pixel point in the corresponding display panel is determined, including: using the determined first brightness value of each pixel unit as the diffuse spot distribution of each corresponding pixel point in the corresponding display panel.

In some embodiments, based on the first brightness value of each pixel unit, the diffuse spot distribution of each corresponding pixel point in the corresponding display panel is determined, including: compensating the first brightness value of the corresponding pixel unit according to the transmittance of the display panel in the light emitting direction from the corresponding pixel point to the display device to determine the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point; using the determined second brightness value of each pixel unit as the diffuse spot distribution of each corresponding pixel point in the corresponding display panel.

In some embodiments, compensating the first brightness value of the corresponding pixel unit according to the transmittance of the display panel in the light emitting direction from the corresponding pixel point to the display device to determine the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point includes: determining the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point according to the following formula:

P2 _{(s+a, k+b)} = P1 _{(s+a, k+b)} / (T ₁ *T ₂ *…*T _n ), wherein P2 _{(s+a, k+b)} is the second brightness value of the pixel unit that is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions on the plane of the nth display panel, and T _n is the transmittance of the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point A.

In some embodiments, based on the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, the diffuse spot area of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed is determined, including: based on the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, determining the radius of a circular area of each corresponding pixel point transmitted in the corresponding display panel along the light emitting direction of the display device, wherein the radius is proportional to the depth distance from the corresponding pixel point to the corresponding display panel; based on the radius of the circular area of each corresponding pixel point transmitted in the corresponding display panel, determining the circular area of each corresponding pixel point in the corresponding display panel as the diffuse spot area of each corresponding pixel point in the corresponding display panel.

In some embodiments, determining the diffuse spot area of each corresponding pixel point in the corresponding display panel of at least one display panel to be displayed based on the depth distance from each corresponding pixel point to the corresponding display panel of at least one display panel to be displayed, includes: determining two intersection points of each corresponding pixel point and the line connecting the eyes of a user looking directly at the screen of the display device along the viewing direction and the corresponding display panel; determining the distance between the two corresponding intersection points based on the depth distance from each corresponding pixel point to the corresponding display panel; and determining the circular area of each corresponding pixel point in the corresponding display panel with a preset multiple of the distance between the two corresponding intersection points as the diameter as the diffuse spot area of each corresponding pixel point in the corresponding display panel.

In some embodiments, display content of each display panel among a plurality of display panels is determined based on the diffuse spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed, including: superimposing the diffuse spot distribution of all pixel points to be displayed on the corresponding display panel at each pixel unit of the corresponding display panel to obtain display content of each display panel among the plurality of display panels.

In some embodiments, the pixel is displayed on at least one The method comprises: determining a convolution kernel corresponding to each corresponding pixel point according to the diffuse spot distribution of each corresponding pixel point in the corresponding display panel; performing a convolution operation on a source content to be displayed on the corresponding display panel based on the corresponding convolution kernel to obtain a convolution result corresponding to each corresponding pixel point; and superimposing the convolution results corresponding to all pixel points to be displayed on the corresponding display panel at each pixel unit of the corresponding display panel to obtain the display content of each display panel in the multiple display panels.

In some embodiments, among the multiple display panels, the pixel unit pitch of each of the display panels is the same.

In some embodiments, the image resolution of the 3D film source content matches the number of pixel units of the display panel.

In some embodiments, obtaining three-dimensional film source content includes: obtaining three-dimensional original film source content, the image resolution of the three-dimensional original film source content does not match the number of pixel units of the display panel; adjusting the resolution of the three-dimensional original film source content to obtain three-dimensional film source content, so that the image resolution of the three-dimensional film source content matches the number of pixel units of the display panel.

In some embodiments, the intervals between two adjacent display panels in the plurality of display panels are the same.

In some embodiments, the pixel units of all the multiple display panels are evenly arranged in orthographic projection on the transparent substrate of the display panel closest to the light emitting side of the display device.

In some embodiments, the number of the multiple display panels is q ² , where q is a positive integer greater than 1; the orthographic projections of the pixel units of all the multiple display panels on the transparent substrate of the display panel closest to the light-emitting side of the display device are arranged in an array with a spacing of 1/q*j in the first direction and the second direction, where j is the spacing of the pixel units of one of the display panels and is a positive number; wherein the first direction and the second direction are directions parallel to the extension surface of the transparent substrate of the display panel closest to the light-emitting side of the display device, and the first direction and the second direction are perpendicular to each other.

In some embodiments, the method further includes: in response to the display device being in the second display mode, acquiring two-dimensional film source content; and determining display content to be displayed on the corresponding display panel according to the two-dimensional film source content.

According to a third aspect of the present disclosure, a display driving device of a display device is provided, wherein the display device includes a plurality of display panels stacked in layers, each display panel including a transparent The display driving device comprises: a substrate and a plurality of pixel units arranged in an array on one side of the transparent substrate, wherein the pixel units of different display panels are arranged in a staggered manner so that the pixel units of each display panel are visible in the front view direction of the display device. The display driving device comprises: an acquisition device configured to acquire the three-dimensional film source content in response to the display device being in the first display mode; a division device configured to divide the three-dimensional space of the three-dimensional film source content according to the relative positions of the plurality of display panels to determine the position of each pixel point of the three-dimensional film source content in the display space of the display device and at least one display panel to which each pixel point is to be displayed; a diffuse spot determination device configured to determine the diffuse spot distribution of each corresponding pixel point in the corresponding display panel of at least one display panel to be displayed according to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device; and a display content determination device configured to determine the display content of each display panel in the plurality of display panels according to the diffuse spot distribution of each corresponding pixel point in the corresponding display panel of at least one display panel to be displayed.

According to a fourth aspect of the present disclosure, there is provided a computing device, comprising a processor; and a memory configured to store computer executable instructions thereon, and when the computer executable instructions are executed by the processor, any of the methods described above is executed.

According to a fifth aspect of the present disclosure, a computer-readable storage medium is provided, which stores computer-executable instructions. When the computer-executable instructions are executed, any method as described above is executed.

According to a sixth aspect of the present disclosure, a computer program product is provided, comprising computer executable instructions, which, when executed, implement any of the methods described above.

In the display device, display driving method and device claimed for protection by the present disclosure, in the first display mode, the display device can display three-dimensional film source content, wherein the stereoscopic space of the three-dimensional film source content is divided according to the relative positions of the multiple display panels to obtain each corresponding pixel point in the three-dimensional film source content to be displayed on the corresponding display panel and the position of each corresponding pixel point in the display space of the display device. According to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device, the diffuse spot distribution of each corresponding pixel point on the corresponding display panel to be displayed can be determined. Based on this, in the In the first display mode, the display content of each display panel depends on the diffuse spot distribution of each corresponding pixel point to be displayed on the corresponding display panel of the three-dimensional film source content, thereby realizing 3D light field display using a transparent display panel. In addition, since the display device of the present disclosure uses a plurality of display panels arranged in a stacked manner, and the display content of each display panel depends on the diffuse spot distribution of the pixel points determined after the above-mentioned space division, there is no view connection area of some display devices such as grating naked-eye 3D, and thus there is no problem of reverse viewing area, which improves the visible range and increases the stereoscopic resolution of the display device.

These and other advantages of the disclosure will be apparent from and elucidated with reference to the embodiments described hereinafter.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the present disclosure will now be described in more detail and with reference to the accompanying drawings, in which:

FIG1 illustrates an exemplary structural diagram of a display device according to an embodiment of the present disclosure;

FIG2 illustrates an exemplary 3D light field imaging principle of a display device according to an embodiment of the present disclosure;

FIG3 illustrates a schematic diagram of the arrangement of pixel units of four stacked display panels according to an embodiment of the present disclosure;

FIG4 is a schematic diagram showing a display device according to an embodiment of the present disclosure when displaying an image;

FIG5 is a schematic flow chart showing a display driving method of a display device according to an embodiment of the present disclosure;

FIG6 is a schematic diagram showing brightness calculation between a pixel unit on a display panel and a pixel point of a 3D film source content according to an embodiment of the present disclosure;

7 illustrates a flow chart of a method for determining display content of each of a plurality of display panels according to an embodiment of the present disclosure;

FIG8 is a schematic diagram illustrating a method of determining a convolution kernel when determining display content of each display panel among a plurality of display panels by using a convolution operation;

FIG9 is a schematic diagram showing a method of determining display content of each of a plurality of display panels by using a convolution operation;

10A-D illustrate schematic diagrams of display contents of multiple display panels of a display device according to an embodiment of the present disclosure;

FIG11 illustrates an exemplary flow chart of a method for determining a diffuse speckle area according to an embodiment of the present disclosure;

FIG12 is a schematic diagram showing a determination of a diffuse speckle area according to an embodiment of the present disclosure;

FIG13 illustrates an exemplary structural block diagram of a display driving device of a display apparatus according to an embodiment of the present disclosure;

14 illustrates an example system including an example computing device that represents one or more systems and/or devices that may implement the various techniques described herein.

DETAILED DESCRIPTION

The following description provides specific details of various embodiments of the present disclosure so that those skilled in the art can fully understand and implement the various embodiments of the present disclosure. It should be understood that the technical solution of the present disclosure can be implemented without some of these details. In some cases, the present disclosure does not show or describe in detail some well-known structures or functions to avoid these unnecessary descriptions from obscuring the description of the embodiments of the present disclosure. The terms used in the present disclosure should be understood in their broadest reasonable manner, even if they are used in conjunction with specific embodiments of the present disclosure.

FIG. 1 illustrates an exemplary structural diagram of a display device 100 according to an embodiment of the present disclosure. As shown in FIG. 1 , the display device 100 includes a plurality of display panels arranged in a stacked manner. As an example, FIG. 1 shows four display panels 110-1, 110-2, 110-3, and 110-4 arranged in a stacked manner, but this is not restrictive. Each display panel includes a transparent substrate 120 and a plurality of pixel units 130 arranged in an array on one side of the transparent substrate 120. As shown in FIG. 1 , the pixel units of different display panels are arranged in a staggered manner so that the pixel units of each display panel are visible in the front view direction of the display device.

The display device 100 has a first display mode. In the first display mode, the display content of each display panel depends on the diffuse spot distribution of each corresponding pixel point in the 3D film source content to be displayed on the corresponding display panel on the corresponding display panel, and the diffuse spot distribution of each corresponding pixel point in the corresponding display panel depends on the position of each corresponding pixel point in the display space of the display device (i.e., the display space position). Each corresponding pixel point on the display panel and the position of each corresponding pixel point in the display space of the display device are obtained by dividing the stereoscopic space of the three-dimensional film source content (that is, the stereoscopic space of the three-dimensional film source content itself) according to the relative positions of the multiple display panels. Each pixel point of the three-dimensional film source content described here is a virtual pixel point of the three-dimensional film source content in the display space of the display device, that is, a virtual object point. The position of a pixel point in the display space of the display device is the position of the virtual object point in the display space of the display device.

In an embodiment of the present disclosure, in the first display mode, the display device can display three-dimensional film source content, wherein the three-dimensional space of the three-dimensional film source content is divided according to the relative positions of the multiple display panels to obtain each corresponding pixel point in the three-dimensional film source content to be displayed on the corresponding display panel and the position of each corresponding pixel point in the display space of the display device. According to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device, the diffuse spot distribution of each corresponding pixel point on the corresponding display panel to be displayed can be determined. Based on this, in the first display mode, the display content of each display panel can be made to depend on the diffuse spot distribution of each corresponding pixel point of the three-dimensional film source content to be displayed on the corresponding display panel, thereby realizing 3D light field display using a transparent display panel. Furthermore, since the display device of the present invention uses a plurality of stacked display panels, and the display content of each display panel depends on the diffuse spot distribution of the pixel points determined after the above-mentioned spatial division, there is no view connection area of some display devices such as grating-type naked-eye 3D, and thus there is no problem of reverse viewing area, which improves the visible range and increases the stereoscopic resolution of the display device.

In some embodiments, the brightness value of a pixel unit of the corresponding display panel is the superposition of the brightness values of all the pixel points to be displayed on the corresponding display panel at the pixel unit of the corresponding display panel. As an example, the diffuse spots of all the pixel points to be displayed on the corresponding display panel can be superimposed at each pixel unit of the corresponding display panel to obtain the display content of each display panel in the multiple display panels. In some embodiments, in order to save computing power, when calculating "the superposition of the brightness values of all the pixel points to be displayed on the corresponding display panel at the pixel unit of the corresponding display panel", only the pixel points with brightness values at the pixel unit of the corresponding display panel can be considered among all the pixel points to be displayed on the corresponding display panel, and the brightness values of these pixel points with brightness values are superimposed to obtain the display content of the corresponding display panel. Displays the brightness value of a pixel unit on the panel.

Optionally, the display device may also have a second display mode, in which the display content of each display panel depends on the two-dimensional source content to be displayed on the corresponding display panel. In this way, a multi-layer display panel can be used to increase the display resolution of the display device. When the pixel units are arranged in one display panel, improving the display resolution faces the problems of difficult manufacturing process and concentrated heat generation. The display device of the present invention can effectively overcome these problems.

The pixel unit is a three-primary-color LED light-emitting chip, which may include three sub-pixel units (e.g., red sub-pixel, green sub-pixel, blue sub-pixel), such as a Mini-LED light-emitting chip or a Micro-LED light-emitting chip. Since the pixel units on the display panel are small in size, the light-emitting LEDs of different display panels are easily arranged in a staggered manner so that the pixel units of each display panel are visible in the normal viewing direction of the display device, so that the viewer can see the display content of all pixel units.

Optionally, the display device may further include a drive controller 140, which is used to determine the content to be displayed by each display panel. For example, in response to the display device being in the first display mode, the three-dimensional film source content can be acquired; then the stereoscopic space of the three-dimensional film source content is divided according to the relative positions of the multiple display panels to determine the position of each pixel of the three-dimensional film source content in the display space of the display device and at least one display panel to which each pixel is to be displayed; then, according to the position of each corresponding pixel of the three-dimensional film source content in the display space of the display device, the diffuse spot distribution of each corresponding pixel in the corresponding display panel to be displayed in at least one display panel is determined; finally, according to the diffuse spot distribution of each corresponding pixel in the corresponding display panel to be displayed in at least one display panel, the display content of each display panel in the multiple display panels is determined. The display timing signal and image content of the display device in the present disclosure can be acquired and given by the drive controller. For example, the image displayed on the display panel of the display device can be obtained by real-time calculation in the driving controller, and the data can be transmitted to each layer of display panel driving IC (not shown) through a communication bus (not shown), and then sent to each display panel at the same time according to the timing signal to control the pixel unit to complete the display of the image content.

As an example, FIG2 illustrates an exemplary 3D light field imaging principle of a display device 100 according to an embodiment of the present disclosure. As shown in FIG2, pixel points A and B are obtained by dividing the stereoscopic space of the three-dimensional source content according to the relative positions of the multiple display panels. , where in the direction from the viewing direction to the display panel, pixel point A is behind display panel 110-2, so it will be displayed on display panels 110-1 and 110-2, and pixel point B is between display panels 110-1 and 110-2, so it will be displayed on 110-1, and will not be displayed by 110-2. The two pixel points A and B correspond to different sight angles relative to the viewer's eyes. For example, if the spatial depth of point A is larger, the sight angle is small, and if the spatial depth of point B is smaller, the binocular sight angle is large. Therefore, it can be determined that spatial pixels of different depths will produce diffuse spot areas of different sizes on its display panel. If the display device is to achieve a 3D light field display effect, the projection picture of the display content on the retina of the viewer's eyes needs to satisfy the above correspondence. The display device of the present disclosure can achieve a 3D light field display effect by reproducing the light intensity distribution of pixel points on different display panels (i.e., diffuse spot distribution). As shown in FIG. 2 , the diffuse spot distribution of pixel point A on display panels 110 - 1 and 110 - 2 is the brightness value of the pixel units in regions 210 and 220 , respectively, and the diffuse spot distribution of pixel point B on display panel 110 - 1 is the brightness value of the pixel units in region 230 .

In some embodiments, the spacing between each adjacent two display panels in the multiple display panels is the same. For example, the spacing between display panels 110-1 and 110-2 in Figure 1 is the same as the spacing between display panels 110-2 and 110-3. This is conducive to providing a better display effect. Optionally, it can be required that the longitudinal distance between each pixel unit in one of the two adjacent display panels and the related pixel unit of the other display panel also remain fixed to maintain the three-dimensional light field image formed by them has a stable visual effect, that is, the corresponding positions of each display panel are required to maintain the same spacing without bending or tilting. The transparent substrate of the display panel can be a transparent material with high transmittance such as glass or polymer material, and the drive wiring on the substrate can also be partially made of transparent material to increase the permeability of the entire substrate. For example, the drive wiring can be made on the substrate by sputtering or calendering.

In some embodiments, the orthographic projections of the pixel units of all the multiple display panels on the transparent substrate of the display panel closest to the light emitting side of the display device are evenly arranged, which helps to improve the display effect of the display device. Any arrangement is possible. For example, in some embodiments, the number of the multiple display panels is q ² , where q is a positive integer greater than 1; the orthographic projections of the pixel units of all the multiple display panels on the transparent substrate of the display panel closest to the light emitting side of the display device are arranged in an array with a spacing of 1/q*j in the first direction and the second direction, where j is the spacing of the pixel units of each display panel and is a positive number; wherein the first direction and the second direction are parallel to the The first direction is the direction of the extended surface of the transparent substrate of the display panel closest to the light emitting side of the display device, and the first direction and the second direction are perpendicular to each other.

As an example, FIG3 illustrates a schematic diagram of the arrangement of pixel units of 4 (i.e., q=2) stacked display panels according to an embodiment of the present disclosure. The small squares marked with numbers 1, 2, 3, and 4 in FIG3 respectively represent the orthographic projections of the pixel units of the first, second, third, and fourth display panels among the four display panels on the transparent substrate of the display panel closest to the light-emitting side of the display device. It can be seen that these orthographic projections are arranged in an array with a spacing of 1/2*j in the first direction (e.g., the horizontal direction in FIG3) and the second direction (e.g., the vertical direction in FIG3), where j is the spacing of the pixel units of each of the display panels.

In some embodiments, the pixel unit pitch of each of the plurality of display panels is the same. For example, the plurality of display panels have the same display resolution.

In some embodiments, the image resolution of the 3D film source content matches the number of pixel units of the display panel (for example, the image resolution of the 3D film source content is the same as the number of pixel units of at least part of the display panel), which can ensure that the image resolution of the 3D film source content matches the resolution of the display panel (for example, the same), which is conducive to forming a better display effect. In actual use, the number of pixel units of at least part of the display panel is slightly larger than the image resolution of the 3D film source content, which can also be regarded as the image resolution of the 3D film source content matches the resolution of the display panel, which is conducive to forming a better display effect. In a specific embodiment, the matching can include the case where the number of pixel units of at least part of the display panel is slightly larger than the image resolution of the 3D film source content, and the number of pixel units of each display panel can make the pixel points located at the edge of the image in the displayed 3D film source content form a complete diffuse spot distribution on each display panel within a certain threshold range of the depth distance to enhance the display experience.

In some embodiments, the 3D film source content is obtained by adjusting the resolution of the 3D original film source content, and the image resolution of the 3D original film source content does not match the number of pixel units of the display panel.

For example, in the case of a 3D original source content in a 2D image format with depth information, the image resolution of the 3D original source content does not match (for example, is different from) the resolution of the display panel. The above source format cannot be used directly due to the resolution mismatch. In this case, the resolution of the 3D original source content can be adjusted so that the image resolution of the 3D original source content matches the resolution of the display panel (for example, e.g., same).

For example, in the case of using a 3D original source content including left-eye and right-eye parallax images, since the 3D original source content includes left-eye and right-eye images, such a source format cannot be directly used by the display device because it is incompatible with the 3D source format that can be directly used by the display device. In this case, the 3D original source content can be converted into a 2D image format with depth information, and the image resolution of the 3D original source content is matched with (for example, the same as) the resolution of the display panel.

As described above, spatial pixels at different depths will generate diffuse spot areas of different sizes on the display panel. Therefore, the diffuse spot distribution of each pixel of the three-dimensional film source content on the display panel depends on the depth distance from each pixel to the corresponding display panel, and the depth distance from each corresponding pixel to the corresponding display panel can be determined according to the position of each corresponding pixel in the display space of the display device.

In some embodiments, the diffuse spot distribution of each corresponding pixel point on the corresponding display panel depends on the first brightness value of each pixel unit of each corresponding pixel point in the diffuse spot area of the corresponding display panel, the diffuse spot area depends on the depth distance of each corresponding pixel point to the corresponding display panel, and for the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point, the first brightness value of each pixel unit of each corresponding pixel point in the diffuse spot area on the nth display panel is determined according to the following formula:

Wherein, s and k are respectively the horizontal plane coordinates of the display space of the corresponding pixel point A, _La is the brightness value of the corresponding pixel point A, _Px and _Py are respectively the pixel unit arrangement pitches of the display panel in the first and second directions, P1 _{(s+a, k+b)} is the first brightness value of the pixel unit on the plane of the nth display panel, which is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions, the nth display panel represents the corresponding display panel, and the nth display panel is the nth display panel in the multiple display panels that is between the light emitting side of the display device and the corresponding pixel point A and in the direction from the light emitting side of the display device to the corresponding pixel point A, Ln is the depth distance from the corresponding pixel point A to the nth display panel, the first direction and the second direction are directions parallel to the extension surface of the transparent substrate of the display panel, and the first direction and the second direction are perpendicular to each other, and the horizontal plane of the display space is parallel to the transparent substrate of the display panel. Extension surface, where s, k, n, a, b, are integers greater than or equal to zero. The nth display panel here represents the corresponding display panel. As an example, as shown in FIG1 , assuming that the light-emitting side of the display device is the left side of the display panel 110-1 in FIG1 , if the display space position of the corresponding pixel point is between the display panels 110-2 and 110-3, the display panels between the light-emitting side of the display device and the corresponding pixel point are display panels 110-1 and 110-2. The corresponding pixel point is to be displayed on the display panels 110-2 and 110-1 (that is, a diffuse spot distribution will be formed on the display panels 110-2 and 110-1), and will not be displayed on the display panels 110-3 and 110-4. According to the above definition, display panel 110-1 is the first display panel, and display panel 110-2 is the second display panel. When the corresponding display panel described above is the display panel 110 - 1 , the value of n is 1, and when the corresponding display panel described above is the display panel 110 - 2 , the value of n is 2.

In actual display situations, each display panel is not completely transparent, so the brightness value of the pixel unit on the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point A described above will be lost when viewed by the viewer, resulting in the brightness value actually seen being less than the first brightness value. Therefore, in some embodiments, the diffuse spot distribution of each corresponding pixel point in the corresponding display panel may depend on the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point in the corresponding display panel, and the second brightness value of each pixel unit is obtained by compensating the first brightness value of the corresponding pixel unit according to the transmittance of the display panel from the corresponding pixel point along the light emitting direction of the display device. By compensating the first brightness value of the corresponding pixel unit based on the transmittance of the display panel, the brightness value loss can be compensated, thereby improving the display effect of the display device.

In some embodiments, the second brightness value is determined based on the first brightness value according to the following formula:
P2 _{(s+a, k+b)} =P1 _{(s+a, k+b)} /(T ₁ *T ₂ *…*T _n ), formula 2

Wherein, P2 _{(s+a, k+b)} is the second brightness value of the pixel unit on the plane of the nth display panel, which is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions respectively, and _Tn is the transmittance of the nth display panel in the direction from the light-emitting side of the display device to the corresponding pixel point A. This provides an efficient way to compensate the first brightness value. It can be seen that when displaying, the more display panels are separated from the viewer, the more the brightness value is compensated. It should be noted that when n=1, _T1 * _T2 *…* _Tn is _T1 ; when n=2 When n=3, T ₁ *T _{2 * …} * _{T n is} T ₁ *T ₂ *…* _{T 3 ,} and so on _.

As an example, FIG4 shows a schematic diagram of a display device according to an embodiment of the present disclosure when displaying an image. As shown in FIG4, three stacked display panels are arranged in sequence along the viewer's horizontal viewing direction, set at a certain interval, and tightly fixed around by a mechanism to ensure that the corresponding pixel intervals of each display panel are consistent. When the three display panels each display corresponding display content, the viewer can view a three-dimensional image.

FIG5 shows a schematic flow chart of a display driving method 500 of a display device according to an embodiment of the present disclosure. The display device may be the display device described above with reference to FIG1 , which may include a plurality of stacked display panels, each display panel including a transparent substrate and a plurality of pixel units arranged in an array on one side of the transparent substrate, the pixel units of different display panels being staggered so that the pixel units of each display panel are visible in the normal viewing direction of the display device. The method may include at least steps 510-540.

In step 510, in response to the display device being in the first display mode, a 3D source content is acquired. The 3D source content may be a 2D (2 Dimensions) image format content with depth information, etc., which is not specifically limited here.

In some embodiments, among the multiple display panels, the pixel unit pitch of each of the display panels is the same, that is, the multiple display panels have the same display resolution.

In some embodiments, the image resolution of the 3D original source content matches the number of pixel units of the display panel and is compatible with a 3D source format that can be directly used by the display device. In this case, the 3D original source content can be obtained as the 3D source content.

In some embodiments, the image resolution of the 3D original film source content does not match the number of pixel units of the display panel, or the 3D original film source content is incompatible with the 3D film source format that can be directly used by the display device. In this case, the 3D original film source content needs to be adjusted (for example, adjusting the resolution, format, etc.) to obtain the 3D film source content so that the image resolution of the 3D film source content matches the number of pixel units of the display panel. The 3D original film source content can be, for example, 3D original film source content including left and right eye parallax images, or 3D original film source content in a 2D image format with depth information.

In some embodiments, the spacing between each adjacent two display panels in the plurality of display panels is the same. This is conducive to providing a better display effect. The orthographic projections of the pixel units of all the plurality of display panels on the transparent substrate of the display panel closest to the light-emitting side of the display device are evenly arranged. This helps to improve the display effect of the display device. Of course, any arrangement form is possible. For example, the number of the plurality of display panels is q ² , where q is a positive integer greater than 1; the orthographic projections of the pixel units of all the plurality of display panels on the transparent substrate of the display panel closest to the light-emitting side of the display device are arranged in an array with a spacing of 1/q*j in the first direction and the second direction, where j is the spacing of the pixel units of one of the display panels and is a positive number; wherein the first direction and the second direction are parallel to the direction of the extension surface of the transparent substrate of the display panel closest to the light-emitting side of the display device, and the first direction and the second direction are perpendicular to each other.

In step 520, the stereoscopic space of the 3D film source content is divided according to the relative positions of the multiple display panels to determine the position of each pixel of the 3D film source content in the display space of the display device and at least one display panel on which each pixel is to be displayed. Each pixel of the 3D film source content described here is a virtual pixel of the 3D film source content in the display space, that is, a virtual spatial object point. As an example, after the stereoscopic space of the 3D film source content is divided according to the relative positions of the multiple display panels, the pixel point A described with reference to FIG. 2 can be obtained. In the direction from the viewing direction to the display panel, the pixel point A is behind the display panel 110-2, and therefore is to be displayed on the display panels 110-1 and 110-2.

In step 530, the diffuse speckle distribution of each corresponding pixel in the display panel corresponding to at least one display panel to be displayed is determined according to the position of each corresponding pixel of the 3D source content in the display space of the display device. For example, the diffuse speckle distribution of pixel A on display panels 110-1 and 110-2 may be determined according to the position of corresponding pixel A in the display space of the display device.

In some embodiments, determining the diffuse spot distribution of each corresponding pixel point in the display panel corresponding to at least one display panel to be displayed according to the position of each corresponding pixel point of the 3D film source content in the display space of the display device may include: determining the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed according to the position of each corresponding pixel point of the 3D film source content in the display space of the display device; determining the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed according to the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed. The pixel points correspond to the diffuse spot distribution of the display panel in at least one display panel to be displayed. Pixel points of different depths will generate diffuse spot areas and diffuse spot distributions of different sizes on the display panel.

In some embodiments, determining the diffuse spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed may include the following steps based on the depth distance of each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed.

First, according to the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, determine the diffuse spot area of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed. The diffuse spot area can be determined in any suitable manner, which is not specifically limited here. As an example, according to the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, the radius of the circular area of each corresponding pixel point transmitted in the corresponding display panel along the light emitting direction of the display device can be determined, and the radius is proportional to the depth distance from the corresponding pixel point to the corresponding display panel; then, according to the radius of the circular area of each corresponding pixel point transmitted in the corresponding display panel, determine the circular area of each corresponding pixel point in the corresponding display panel as the diffuse spot area of each corresponding pixel point in the corresponding display panel.

Then, for the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point, the first brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point on the nth display panel is determined according to the following formula:

Wherein, s and k are respectively the horizontal plane coordinates of the display space of the corresponding pixel point A, _La is the brightness value of the corresponding pixel point A, _Rx and _Py are respectively the pixel unit arrangement pitches of the display panel in the first and second directions, P1 _{(s+a, k+b)} is the first brightness value of the pixel unit on the plane of the nth display panel that is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions, the nth display panel represents the corresponding display panel, and the nth display panel is the nth display panel in the multiple display panels that is between the light emitting side of the display device and the corresponding pixel point A and in the direction from the light emitting side of the display device to the corresponding pixel point A, Ln is the depth distance from the corresponding pixel point A to the nth display panel, and the first direction and the second direction are parallel to the display The direction of the transparent substrate extension surface of the display panel, and the first direction and the second direction are perpendicular to each other, and the display space horizontal plane is parallel to the transparent substrate extension surface of the display panel, wherein s, k, n, a, b, are integers greater than or equal to zero. The nth display panel here represents the corresponding display panel. As an example, as shown in FIG1, assuming that the light-emitting side of the display device is the left side of the display panel 110-1 in FIG1, if the display space position of the corresponding pixel point is between the display panels 110-2 and 110-3, the display panels between the light-emitting side of the display device and the corresponding pixel point are display panels 110-1 and 110-2. The corresponding pixel point is to be displayed on display panels 110-2 and 110-1 (that is, a diffuse spot distribution will be formed on display panels 110-2 and 110-1), and will not be displayed on display panels 110-3 and 110-4. According to the above definition, display panel 110-1 is the first display panel, and display panel 110-2 is the second display panel. When the corresponding display panel described above is the display panel 110 - 1 , the value of n is 1, and when the corresponding display panel described above is the display panel 110 - 2 , the value of n is 2.

Finally, based on the first brightness value of each pixel unit, the diffuse spot distribution of each corresponding pixel point on the corresponding display panel is determined. For example, the determined first brightness value of each pixel unit can be directly used as the diffuse spot distribution of each corresponding pixel point on the corresponding display panel.

The display content of the stacked multiple display panels can be obtained by processing the 3D source content according to the following principle. Assuming that the coordinates of each pixel point of the 3D source content in the plane parallel to the display screen in the display space are (x ₀ , y ₀ ), and the coordinates of the imaging plane point at a distance z from the pixel point are (x, y), the corresponding point spread function can be expressed as follows:

Among them, t(x ₀ , y ₀ ) represents the display space position of the pixel point, j is the imaginary part, k is the wave vector, λ is the wavelength of the light, and c is the coefficient term.

According to the definition of the point spread function, whether it is a self-luminous light source or a reflective surface light source, it is a diffuse Lambertian light source in most cases and satisfies the cosine radiation law. Assuming that the distance from the display panel to the pixel point is z, the brightness distribution of the pixel point formed on the display panel through the spatial propagation of light can be obtained, and its calculation formula is as follows.

S＝A/cosθ＝Z ₁ tanθ/cosθ

E ₂ (x, y) = E ₁ (x, y)*PSF _{x, y, z}

Wherein, E(x,y) is the illumination of the pixel on the corresponding display panel, Φ is the luminous flux of the pixel, Ω is the light emitting solid angle of the pixel, S is the light receiving surface area of the pixel on the corresponding display panel, I is the luminous intensity on the corresponding display panel, A is the brightness of the pixel, θ is the angle between the light and the vertical normal of the display panel, PSF _{x, y, z} is the point spread function corresponding to the pixel, and Z1 is the vertical distance from the pixel to the display screen.

The above spatial propagation relationship of light can be used to obtain the brightness distribution data of the pixel units on each layer of the display panel corresponding to the pixel point at different distances. Based on this, the calculation formula of the first brightness value as described above can be obtained.

In actual display situations, each display panel is not completely transparent, so the brightness value of the pixel unit on the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point A described above will be lost when viewed by the viewer, resulting in the brightness value actually seen being less than the first brightness value. Therefore, when determining the diffuse spot distribution of each corresponding pixel point on the corresponding display panel based on the first brightness value of each pixel unit, the first brightness value of the corresponding pixel unit can be compensated according to the transmittance of the display panel from the corresponding pixel point along the light emitting direction of the display device to determine the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point. Then, the determined second brightness value of each pixel unit is used as the diffuse spot distribution of each corresponding pixel point on the corresponding display panel. By compensating the first brightness value of the corresponding pixel unit based on the transmittance of the display panel, the brightness value loss can be compensated, thereby improving the display effect of the display device.

As an example, the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point is determined according to the following formula:
P2 _{(s+a, k+b)} =P1 _{(s+a, k+b)} /(T ₁ *T ₂ *…*T _n ), formula 2

Wherein, P2 _{(s+a, k+b)} is the plane of the nth display panel between the first and second The second brightness value of the pixel unit that is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the direction, _Tn is the transmittance of the nth display panel in the direction from the light exit side of the display device to the corresponding pixel point A. This provides an efficient way to compensate the first brightness value.

For the sake of clarity, a schematic diagram of brightness calculation between a pixel unit on a display panel and a pixel point of a three-dimensional film source content according to an embodiment of the present disclosure is shown in FIG6 . Assuming that the distances from the display panel to the pixel points A and B are L1 and L2 respectively, the brightness of the pixel point A is La, the brightness of the pixel point B is Lb, and the pixel point A is at the spatial horizontal plane coordinate (m, n), the brightness value of the pixel unit P(m,n) on the display panel can be determined as La according to the above formula 1. Similarly, the brightness values of the surrounding pixel units P(m+1,n), P(m,n+1), P(m+1,n+1) and the like of the pixel unit P(m,n) on the display panel corresponding to the pixel point A can be calculated respectively. Similarly, the brightness values of the pixel unit P(u,v) on the display panel corresponding to the pixel point B and the surrounding pixel units P(u+1,v), P(u,v+1), P(u+1,v+1) and the like can be determined. It can be seen that when the depth distances of pixel points A and B to the display panel are different, the brightness values of P(m,n) and P(u,v) on the display panel are different. Therefore, the spatial light field corresponding to the display device constructed by each layer of display panels is obtained to display the different depths of pixel points A and B. Using the visual adaptation ability of the human eye, the viewer can focus on the light field distribution generated by each layer of display panels to obtain a stereoscopic viewing effect.

In step 540, the display content of each display panel in the plurality of display panels is determined according to the diffuse spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed. As an example, the diffuse spot distribution of all the pixels to be displayed on the corresponding display panel at each pixel unit of the corresponding display panel can be superimposed to obtain the display content of each display panel in the plurality of display panels. In other words, the brightness value of a pixel unit of the corresponding display panel is the superposition of the brightness values of all the pixels to be displayed on the corresponding display panel at the pixel unit of the corresponding display panel. Of course, this is not restrictive.

As another example, FIG. 7 illustrates a flowchart of a method 700 for determining display content of each display panel in a plurality of display panels according to an embodiment of the present disclosure, which may be used to To implement step 540. FIG8 illustrates a schematic diagram of determining a convolution kernel when determining display content of each display panel in a plurality of display panels using a convolution operation, and FIG9 illustrates a schematic diagram of determining display content of each display panel in a plurality of display panels using a convolution operation. The method 700 is described below in conjunction with FIGS. 8 and 9, and includes steps 710-730.

In step 710, the convolution kernel corresponding to each corresponding pixel is determined according to the diffuse spot distribution of each corresponding pixel on the corresponding display panel. As shown in FIG8 , the diffuse spot area of pixel A on the display panel 110-1 is a circular area Z, and the diffuse spot distribution can be determined according to the pixel units in the circular area. Correspondingly, the size of the convolution kernel corresponding to the pixel can be determined to be L*W, and the specific parameters of the convolution kernel can be determined as needed, which is not limited here.

In step 720, a convolution operation is performed on the source content to be displayed on the corresponding display panel based on the corresponding convolution kernel to obtain a convolution result corresponding to each corresponding pixel. FIG9 shows a schematic diagram of the convolution operation. For example, all pixels of the source content of the display panel can be traversed according to the convolution kernel to obtain a corresponding convolution result.

In step 730, the convolution results corresponding to all the pixels to be displayed on the corresponding display panel are superimposed at each pixel unit of the corresponding display panel to obtain the display content of each display panel in the multiple display panels. After the convolution results are obtained, the convolution results corresponding to all the pixels to be displayed on the corresponding display panel are superimposed at each pixel unit of the corresponding display panel to generate the display content of each display panel in the multiple display panels.

In this way, using convolution calculations, the display content of each of the display panels can be determined efficiently and with certainty.

In some embodiments, the display driving method 500 may further include: in response to the display device being in the second display mode, acquiring two-dimensional film source content; and determining display content to be displayed on the corresponding display panel according to the two-dimensional film source content. In this way, a multi-layer display panel can be used to increase the display resolution of the display device. When the pixel units are arranged in one display panel, improving the display resolution faces the problems of difficult manufacturing process and concentrated heat generation. The display driving method of the present invention can effectively overcome these problems.

As an example, schematic diagrams of display contents of multiple display panels of a display device according to an embodiment of the present disclosure are shown in FIGS. 10A-D, where the display contents are, for example, display contents determined by the display driving method of the display device described with reference to FIG. 5 for display on the four display panels shown in FIG. 1. When a viewer simultaneously views the display contents of the multiple display panels in a viewing direction, a stereoscopic display effect can be viewed.

In summary, in the display driving method 500 of the display device disclosed in the present invention, when the display device is in the first mode, the three-dimensional film source content is obtained, and then the stereoscopic space of the three-dimensional film source content is divided according to the relative positions of the multiple display panels to determine the position of each pixel point of the three-dimensional film source content in the display space of the display device and at least one display panel to which each pixel point is to be displayed; and then according to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device, the diffuse spot distribution of each corresponding pixel point in the corresponding display panel to be displayed in at least one display panel is determined. Based on this, in the first display mode, the display content of each display panel can be made to depend on the diffuse spot distribution of each corresponding pixel point of the three-dimensional film source content to be displayed on the corresponding display panel, thereby realizing 3D light field display using a transparent display panel. Furthermore, since the display device of the present invention uses a plurality of stacked display panels, and the display content of each display panel depends on the diffuse spot distribution of the pixel points determined after the above-mentioned spatial division, there is no view connection area of some display devices such as grating-type naked-eye 3D, and thus there is no problem of reverse viewing area, which improves the visible range and increases the stereoscopic resolution of the display device.

FIG11 illustrates an exemplary flow chart of a method 1100 for determining a diffuse speckle area according to an embodiment of the present disclosure, which can implement the above-described method of determining a diffuse speckle area of each corresponding pixel in a corresponding display panel of at least one display panel to be displayed according to a depth distance from each corresponding pixel to a corresponding display panel of at least one display panel to be displayed. The method includes 1110-1130.

In step 1110, two intersection points of a line connecting each corresponding pixel point and the eyes of a user looking directly at the screen of the display device along the viewing direction and the corresponding display panel are determined. As an example, FIG. 12 shows a schematic diagram of determining a diffuse spot area according to an embodiment of the present disclosure. As shown in FIG12 , the line connecting the pixel point A and the eyes of the user looking directly at the display device screen along the viewing direction intersects the display panel 1 at A11 and A12 respectively. The line connecting the pixel point A and the eyes of the user looking directly at the display device screen along the viewing direction intersects the display panel 2 at A21 and A22 respectively.

In step 1120, the distance between the two corresponding intersections is determined according to the depth distance from each corresponding pixel point to the corresponding display panel. After the two intersections are determined, the distance between A11 and A12 can be determined according to the depth distance from the pixel point A to the display panel 1, and the distance between A21 and A22 can be determined according to the depth distance from the pixel point A to the display panel 2.

In step 1130, the preset multiple of the distance between the two corresponding intersections is used as the diameter to determine the circular area of each corresponding pixel point in the corresponding display panel as the diffuse spot area of each corresponding pixel point in the corresponding display panel. Taking the preset multiple as 1 as an example, the distance between A11 and A12 can be used as the diameter to determine the circular area of pixel point A in display panel 1 as the diffuse spot area of pixel point A in display panel 1. Similarly, the distance between A21 and A22 can be used as the diameter to determine the circular area of pixel point A in display panel 2 as the diffuse spot area of pixel point A in display panel 2. Of course, the diameter can be determined to be greater than the distance between the two intersections. For example, the distance between A23 and A24 can be used as the diameter to determine the circular area of pixel point A in display panel 2 as the diffuse spot area of pixel point A in display panel 2.

FIG13 illustrates an exemplary structural block diagram of a display driving device 1300 of a display device according to an embodiment of the present disclosure. The display device includes a plurality of display panels stacked in layers, each display panel includes a transparent substrate and a plurality of pixel units arranged in an array on one side of the transparent substrate, and the pixel units of different display panels are staggered so that the pixel units of each display panel are visible in the front view direction of the display device. As shown in FIG13 , the display driving device 1300 of the display device includes an acquisition device 1310, a division device 1320, a diffuse speckle determination device 1330, and a display content determination device 1340.

The acquisition module 1310 is configured to acquire 3D film source content in response to the display device being in the first display mode. The 3D film source content may be a picture, an image, or Video, etc. The three-dimensional film source content may be content in a two-dimensional (2D, 2 Dimensions) image format with depth information, etc., which is not specifically limited here.

The dividing device 1320 is configured to divide the stereoscopic space of the 3D film source content according to the relative positions of the plurality of display panels to determine the position of each pixel of the 3D film source content in the display space of the display device and at least one display panel on which each pixel is to be displayed. Each pixel of the 3D film source content mentioned here is a virtual pixel of the 3D film source content in the display space, that is, a virtual spatial object point.

The speckle determination device 1330 is configured to determine the speckle distribution of each corresponding pixel point in the display panel corresponding to at least one display panel to be displayed according to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device;

The display content determination device 1340 is configured to determine the display content of each display panel in the multiple display panels according to the diffuse spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed. As an example, the diffuse spot distribution of all the pixels to be displayed on the corresponding display panel at the corresponding display panel can be superimposed at each pixel unit of the corresponding display panel to obtain the display content of each display panel in the multiple display panels. In other words, the brightness value of a pixel unit of the corresponding display panel is the superposition of the brightness values of all the pixels to be displayed on the corresponding display panel at the pixel unit of the corresponding display panel. Of course, this is not restrictive.

In the display driving device of the display device disclosed in the present invention, the acquisition module acquires the three-dimensional film source content when the display device is in the first mode, and then the division device divides the stereoscopic space of the three-dimensional film source content according to the relative positions of the multiple display panels to determine the position of each pixel point of the three-dimensional film source content in the display space of the display device and at least one display panel on which each pixel point is to be displayed; and then the diffuse speckle determination device determines the diffuse speckle distribution of each corresponding pixel point in the at least one display panel to be displayed according to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device. Based on this, the display content determination device In the first display mode, the display content of each display panel can be made to depend on the diffuse spot distribution of each corresponding pixel point of the three-dimensional film source content to be displayed on the corresponding display panel, thereby realizing 3D light field display using a transparent display panel. In addition, since the display device of the present disclosure uses a plurality of display panels arranged in a stacked manner, and the display content of each display panel depends on the diffuse spot distribution of the pixel points determined after the above-mentioned space division, there is no view connection area of some display devices such as grating naked-eye 3D, and thus there is no problem of reverse viewing area, which improves the visible range and increases the stereoscopic resolution of the display device.

FIG. 14 illustrates an example system 1400, which includes an example computing device 1410 representing one or more systems and/or devices that can implement the various techniques described herein. The computing device 1410 can be, for example, a server of a service provider, a device associated with a server, a system on a chip, and/or any other suitable computing device or computing system. The display driver device 1300 of the display device described above with reference to FIG. 13 can take the form of a computing device 1410. Alternatively, the display driver device 1300700 of the display device can be implemented as a computer program in the form of an application 1416.

The example computing device 1410 as shown includes a processing system 1411, one or more computer-readable media 1412, and one or more I/O interfaces 1413 that are communicatively coupled to each other. Although not shown, the computing device 1410 may also include a system bus or other data and command transmission system that couples various components to each other. The system bus may include any one or combination of different bus structures, such as a memory bus or memory controller, a peripheral bus, a universal serial bus, and/or a processor or local bus utilizing any one of a variety of bus architectures. Various other examples are also contemplated, such as control and data lines.

Processing system 1411 represents the functionality of performing one or more operations using hardware. Thus, processing system 1411 is illustrated as including hardware elements 1414 that may be configured as processors, functional blocks, and the like. This may include other logic devices implemented in hardware as application specific integrated circuits or formed using one or more semiconductors. Hardware elements 1414 are not limited by the materials from which they are formed or the processing mechanisms employed therein. For example, a processor may be composed of (multiple) semiconductors and/or transistors (e.g., electronic integrated circuits (ICs)). In such a context, processor executable instructions may be electronic executable instructions.

Computer readable media 1412 is illustrated as including memory/storage 1415. Storage Memory/storage 1415 represents memory/storage capacity associated with one or more computer-readable media. Memory/storage 1415 may include volatile media (such as random access memory (RAM)) and/or non-volatile media (such as read-only memory (ROM), flash memory, optical disks, magnetic disks, etc.). Memory/storage 1415 may include fixed media (e.g., RAM, ROM, fixed hard drives, etc.) and removable media (e.g., flash memory, removable hard drives, optical disks, etc.). Computer-readable media 1412 may be configured in various other ways as further described below.

One or more I/O interfaces 1413 represent functionality that allows a user to input commands and information to the computing device 1410 using various input devices, and optionally also allows information to be presented to the user and/or other components or devices using various output devices. Examples of input devices include a keyboard, a cursor control device (e.g., a mouse), a microphone (e.g., for voice input), a scanner, touch functionality (e.g., a capacitive or other sensor configured to detect physical touch), a camera (e.g., that can detect motion that does not involve touch as gestures using visible or invisible wavelengths (such as infrared frequencies), etc.). Examples of output devices include a display device (e.g., a monitor or projector), a speaker, a printer, a network card, a tactile response device, etc. Thus, the computing device 1410 can be configured in various ways as further described below to support user interaction.

The computing device 1410 also includes an application 1416. The application 1416 may be, for example, a software instance of the display driver device 1300 of the display apparatus, and in combination with other elements in the computing device 1410 implements the techniques described herein.

Various techniques may be described herein in the general context of software hardware elements or program modules. Generally, these modules include routines, programs, objects, elements, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The terms "module", "function" and "component" as used herein generally represent software, firmware, hardware or a combination thereof. The features of the techniques described herein are platform-independent, meaning that these techniques can be implemented on a variety of computing platforms with a variety of processors.

An implementation of the described modules and techniques may be stored on or transmitted across some form of computer-readable media. Computer-readable media may include various media accessible by computing device 1410. By way of example and not limitation, computer-readable media may include “computer-readable storage media” and “computer-readable signal media”.

As opposed to a simple signal transmission, carrier wave or signal itself, "computer readable storage medium" "Material" refers to media and/or devices capable of persistently storing information, and/or tangible storage devices. Thus, computer-readable storage media refers to non-signal bearing media. Computer-readable storage media include hardware such as volatile and non-volatile, removable and non-removable media and/or storage devices implemented in a method or technology suitable for storing information (such as computer-readable instructions, data structures, program modules, logic elements/circuits or other data). Examples of computer-readable storage media may include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical storage devices, hard disks, cassettes, magnetic tape, magnetic disk storage devices or other magnetic storage devices, or other storage devices, tangible media, or articles of manufacture suitable for storing the desired information and accessible by a computer.

"Computer-readable signal media" refers to signal-bearing media that is configured to send instructions to the hardware of the computing device 1410, such as via a network. Signal media typically can embody computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, data signal, or other transport mechanism. Signal media also include any information delivery media. The term "modulated data signal" refers to a signal that has one or more of its characteristics set or changed so as to encode information into the signal. By way of example and not limitation, communication media include wired media such as a wired network or direct connection and wireless media such as acoustic, RF, infrared, and other wireless media.

As previously described, hardware elements 1414 and computer-readable media 1412 represent instructions, modules, programmable device logic, and/or fixed device logic implemented in hardware form, which in some embodiments can be used to implement at least some aspects of the technology described herein. Hardware elements can include integrated circuits or systems on a chip, application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), complex programmable logic devices (CPLDs), and other implementations in silicon or components of other hardware devices. In this context, hardware elements can be used as processing devices that perform program tasks defined by instructions, modules, and/or logic embodied by hardware elements, as well as hardware devices for storing instructions for execution, such as the computer-readable storage media described previously.

Combinations of the foregoing may also be used to implement the various techniques and modules described herein. Thus, software, hardware or program modules and other program modules may be implemented as one or more instructions and/or logic on some form of computer-readable storage medium and/or embodied by one or more hardware elements 1414. Computing device 1410 may be configured to implement specific instructions and/or functions corresponding to software and/or hardware modules. Thus, for example, by using a processing system Computer-readable storage media and/or hardware elements 1414 may be implemented, at least in part, in hardware to implement modules as modules executable as software by computing device 1410. Instructions and/or functions may be executable/operable by one or more articles of manufacture (e.g., one or more computing devices 1410 and/or processing systems 1411) to implement the techniques, modules, and examples described herein.

In various embodiments, computing device 1410 can be implemented in various configurations. For example, computing device 1410 can be implemented as a computer-type device including a personal computer, a desktop computer, a multi-screen computer, a laptop computer, a netbook, etc. Computing device 1410 can also be implemented as a mobile device-type device including mobile devices such as mobile phones, portable music players, portable game devices, tablet computers, multi-screen computers, etc. Computing device 1410 can also be implemented as a television-type device, which includes a device with or connected to a generally larger screen in a casual viewing environment. These devices include televisions, set-top boxes, game consoles, etc.

The techniques described herein can be supported by these various configurations of computing device 1410 and are not limited to the specific examples of the techniques described herein. Functionality can also be implemented in whole or in part on the "cloud" 1420 by using a distributed system, such as through platform 1422 as described below.

Cloud 1420 includes and/or represents a platform 1422 for resources 1424. Platform 1422 abstracts the underlying functionality of the hardware (e.g., servers) and software resources of cloud 1420. Resources 1424 may include applications and/or data that may be used when performing computer processing on a server remote from computing device 1410. Resources 1424 may also include services provided over the Internet and/or over a subscriber network such as a cellular or Wi-Fi network.

The platform 1422 can abstract resources and functionality to connect the computing device 1410 with other computing devices. The platform 1422 can also be used to abstract the hierarchy of resources to provide a hierarchy of corresponding levels of demand encountered for resources 1424 implemented via the platform 1422. Therefore, in an interconnected device embodiment, the implementation of the functionality described herein can be distributed throughout the system 1400. For example, the functionality can be implemented partially on the computing device 1410 and through the platform 1422 that abstracts the functionality of the cloud 1420.

The present disclosure provides a computer-readable storage medium on which computer-readable instructions are stored. When the computer-readable instructions are executed, any of the above methods is implemented.

The present disclosure provides a computer program product or a computer program, wherein the computer program product or the computer program comprises computer instructions stored in a computer readable medium. The processor of the computing device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computing device executes any one of the methods provided in the above various optional implementations.

It should be understood that, for the sake of clarity, embodiments of the present disclosure are described with reference to different functional units. However, it will be apparent that, without departing from the present disclosure, the functionality of each functional unit can be implemented in a single unit, in multiple units, or as a part of other functional units. For example, the functionality that is described as being performed by a single unit can be performed by multiple different units. Therefore, reference to a specific functional unit is only considered as a reference to a suitable unit for providing the described functionality, rather than indicating a strict logical or physical structure or organization. Therefore, the present disclosure can be implemented in a single unit, or can be physically and functionally distributed between different units and circuits.

It will be understood that although the first, second, third, etc. terms may be used to describe various devices, elements, parts or portions in this article, these devices, elements, parts or portions should not be limited by these terms. These terms are only used to distinguish one device, element, part or portion from another device, element, part or portion.

Although the present disclosure has been described in conjunction with some embodiments, it is not intended to be limited to the specific forms set forth herein. On the contrary, the scope of the present disclosure is limited only by the appended claims. Additionally, although individual features may be included in different claims, these may possibly be advantageously combined, and inclusion in different claims does not imply that the combination of features is not feasible and/or advantageous. The order of features in the claims does not imply any specific order in which the features must work. Furthermore, in the claims, the word "comprising" does not exclude other elements, and the term "one" or "an" does not exclude a plurality. The figure marks in the claims are provided only as clear examples and should not be interpreted as limiting the scope of the claims in any way.

Claims (34)

A display device, comprising: A plurality of stacked display panels, each display panel comprising a transparent substrate and a plurality of pixel units arranged in an array on one side of the transparent substrate, the pixel units of different display panels being arranged in a staggered manner so that the pixel units of each display panel are visible in a normal viewing direction of the display device; The display device has a first display mode, in which the display content of each display panel depends on the diffuse spot distribution of each corresponding pixel of the three-dimensional film source content to be displayed on the corresponding display panel on the corresponding display panel, and the diffuse spot distribution of each corresponding pixel on the corresponding display panel depends on the position of each corresponding pixel in the display space of the display device, and, Among them, each corresponding pixel of the three-dimensional film source content to be displayed on the corresponding display panel and the position of each corresponding pixel in the display space of the display device are obtained by dividing the stereoscopic space of the three-dimensional film source content according to the relative positions of the multiple display panels. The display device according to claim 1, characterized in that the distance between each two adjacent display panels among the plurality of display panels is the same. The display device according to claim 1 is characterized in that the pixel units of all the multiple display panels are evenly arranged in orthographic projection on the transparent substrate of the display panel closest to the light emitting side of the display device. The display device according to claim 3, characterized in that the number of the plurality of display panels is q ² , where q is a positive integer greater than 1; the orthographic projections of the pixel units of all the plurality of display panels on the transparent substrate of the display panel closest to the light-emitting side of the display device are arranged in an array with a spacing of 1/q*j in the first direction and the second direction, where j is the spacing of the pixel units of each of the display panels and is a positive number; The first direction and the second direction are directions parallel to the extending surface of the transparent substrate of the display panel closest to the light emitting side of the display device, and the first direction and the second direction are perpendicular to each other. The display device according to claim 1, characterized in that, among the multiple display panels, the pixel unit spacing of each of the display panels is the same. The display device according to claim 5, characterized in that the image resolution of the three-dimensional film source content matches the number of pixel units of the display panel. The display device according to claim 6 is characterized in that the three-dimensional film source content is obtained by adjusting the resolution of the three-dimensional original film source content, and the image resolution of the three-dimensional original film source content does not match the number of pixel units of the display panel. The display device according to claim 1 is characterized in that the diffuse spot distribution of each pixel of the three-dimensional film source content on the display panel depends on the depth distance from each pixel to the corresponding display panel, and the depth distance from each corresponding pixel to the corresponding display panel is determined according to the position of each corresponding pixel in the display space of the display device. The display device according to claim 8, characterized in that the diffuse spot distribution of each corresponding pixel point on the corresponding display panel depends on the first brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point on the corresponding display panel, the diffuse spot area depends on the depth distance from each corresponding pixel point to the corresponding display panel, and for the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point, the first brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point on the nth display panel is determined according to the following formula:
Wherein, s and k are respectively the horizontal plane coordinates of the display space of the corresponding pixel point A, _La is the brightness value of the corresponding pixel point A, _Px and _Py are respectively the pixel unit arrangement pitches of the display panel in the first and second directions, P1 _{(s+a, k+b)} is the first brightness value of the pixel unit on the plane of the nth display panel that is a pixel unit arrangement pitch and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions, the nth display panel represents the corresponding display panel, and the nth display panel is the plurality of display panels in the display panel. The nth display panel is placed between the light emitting side and the corresponding pixel point A and in the direction from the light emitting side of the display device to the corresponding pixel point A, Ln is the depth distance from the corresponding pixel point A to the nth display panel, the first direction and the second direction are directions parallel to the extension surface of the transparent substrate of the display panel, and the first direction and the second direction are perpendicular to each other, the horizontal plane of the display space is parallel to the extension surface of the transparent substrate of the display panel, wherein s, k, n, a, b, are integers greater than or equal to zero. The display device according to claim 9 is characterized in that the diffuse spot distribution of each corresponding pixel point in the corresponding display panel depends on the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point in the corresponding display panel, and the second brightness value of each pixel unit is obtained by compensating the first brightness value of the corresponding pixel unit according to the transmittance of the display panel in the light emitting direction from the corresponding pixel point to the display device. The display device according to claim 10, characterized in that the second brightness value is determined based on the first brightness value according to the following formula: P2 _{(s+a, k+b)} = P1 _{(s+a, k+b)} / (T ₁ *T ₂ *...*T _n ), wherein P2 _{(s+a, k+b)} is the second brightness value of the pixel unit on the plane of the nth display panel, which is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions respectively, and T _n is the transmittance of the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point A. The display device according to claim 1 is characterized in that the display device has a second display mode, in which the display content of each display panel depends on the two-dimensional film source content to be displayed on the corresponding display panel. The display device according to claim 1, characterized in that the pixel unit comprises a Mini-LED light-emitting chip or a Micro-LED light-emitting chip. A display driving method for a display device, wherein the display device comprises a plurality of stacked display panels, each display panel comprises a transparent substrate and a plurality of pixel units arranged in an array on one side of the transparent substrate, the pixel units of different display panels are arranged in a staggered manner so that the pixel units of each display panel can be See, the method comprises: In response to the display device being in the first display mode, acquiring three-dimensional film source content; Dividing the stereoscopic space of the 3D film source content according to the relative positions of the plurality of display panels to determine the position of each pixel of the 3D film source content in the display space of the display device and at least one display panel on which each pixel is to be displayed; Determine, according to the position of each corresponding pixel point of the 3D film source content in the display space of the display device, the diffuse spot distribution of each corresponding pixel point in the corresponding display panel of at least one display panel to be displayed; The display content of each display panel in the plurality of display panels is determined according to the distribution of diffuse spots of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed. The method according to claim 14, characterized in that, according to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device, determining the diffuse spot distribution of each corresponding pixel point in the at least one display panel to be displayed, comprising: Determine, according to the position of each corresponding pixel point of the 3D film source content in the display space of the display device, a depth distance from each corresponding pixel point to a corresponding display panel of at least one display panel to be displayed; According to the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, the dispersion spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed is determined. The method according to claim 15, characterized in that, according to the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, determining the diffuse spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed, comprises: According to the depth distance of each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, the depth of each corresponding pixel point in at least one display panel to be displayed is determined. A diffuse spot area of a corresponding display panel in each display panel; For the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point, the first brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point on the nth display panel is determined according to the following formula:
Based on the first brightness value of each pixel unit, determining the diffuse spot distribution of each corresponding pixel point on the corresponding display panel; Wherein, s and k are respectively the horizontal plane coordinates of the display space of the corresponding pixel point A, _La is the brightness value of the corresponding pixel point A, _Px and _Py are respectively the pixel unit arrangement pitches of the display panel in the first and second directions, P1 _{(s+a, k+b)} is the first brightness value of the pixel unit on the plane of the nth display panel, which is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions, the nth display panel represents the corresponding display panel, and the nth display panel is the nth display panel among the multiple display panels that is between the light emitting side of the display device and the corresponding pixel point A and in the direction from the light emitting side of the display device to the corresponding pixel point A, Ln is the depth distance from the corresponding pixel point A to the nth display panel, the first direction and the second direction are directions parallel to the extension surface of the transparent substrate of the display panel, and the first direction and the second direction are perpendicular to each other, and the horizontal plane of the display space is parallel to the extension surface of the transparent substrate of the display panel, wherein s, k, n, a, b, are integers greater than or equal to zero. The method according to claim 16, characterized in that determining the diffuse spot distribution of each corresponding pixel point on the corresponding display panel based on the first brightness value of each pixel unit comprises: The determined first brightness value of each pixel unit is used as the diffuse spot distribution of each corresponding pixel point on the corresponding display panel. The method according to claim 16, characterized in that determining the diffuse spot distribution of each corresponding pixel point on the corresponding display panel based on the first brightness value of each pixel unit comprises: Compensating the first brightness value of the corresponding pixel unit according to the transmittance of the display panel in the light emitting direction from the corresponding pixel point to the display device, so as to determine the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point; The determined second brightness value of each pixel unit is used as the diffuse spot distribution of each corresponding pixel point on the corresponding display panel. The method according to claim 18, characterized in that compensating the first brightness value of the corresponding pixel unit according to the transmittance of the display panel in the light emitting direction from the corresponding pixel point to the display device to determine the second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point comprises: The second brightness value of each pixel unit in the diffuse spot area of each corresponding pixel point is determined according to the following formula: P2 _{(s+a, k+b)} = P1 _{(s+a, k+b)} / (T ₁ *T ₂ *...*T _n ), wherein P2 _{(s+a, k+b)} is the second brightness value of the pixel unit on the plane of the nth display panel, which is a and b pixel unit arrangement pitches away from the corresponding pixel point A in the first and second directions respectively, and T _n is the transmittance of the nth display panel in the direction from the light emitting side of the display device to the corresponding pixel point A. The method according to claim 16, characterized in that, according to the depth distance from each corresponding pixel point to the corresponding display panel in at least one display panel to be displayed, determining the diffuse spot area of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed, comprises: Determine, according to the depth distance from each corresponding pixel point to the corresponding display panel of at least one display panel to be displayed, the radius of a circular area of each corresponding pixel point transmitted on the corresponding display panel along the light emitting direction of the display device, wherein the radius is proportional to the depth distance from the corresponding pixel point to the corresponding display panel; According to the radius of the circular area of the corresponding display panel transmitted by each corresponding pixel point, the circular area of each corresponding pixel point in the corresponding display panel is determined as the diffuse spot area of each corresponding pixel point in the corresponding display panel. The method according to claim 16, characterized in that, according to each corresponding The method comprises: determining a depth distance from a pixel point to a corresponding display panel in at least one display panel to be displayed, and determining a diffuse spot area of each corresponding pixel point in a corresponding display panel in at least one display panel to be displayed, comprising: Determine two intersection points of each corresponding pixel point and a line connecting two eyes of a user looking directly at the screen of the display device along a viewing direction and a corresponding display panel; Determine the distance between the two corresponding intersection points according to the depth distance from each corresponding pixel point to the corresponding display panel; The circular area of each corresponding pixel point on the corresponding display panel is determined by taking a preset multiple of the distance between the two corresponding intersection points as a diameter as the diffuse spot area of each corresponding pixel point on the corresponding display panel. The method according to claim 14, characterized in that determining the display content of each display panel in the plurality of display panels according to the diffuse spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed comprises: All pixel points to be displayed on the corresponding display panel are superimposed at each pixel unit of the corresponding display panel in the diffuse spot distribution of the corresponding display panel to obtain display content of each display panel in the multiple display panels. The method according to claim 14, characterized in that determining the display content of each display panel in the plurality of display panels according to the diffuse spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed comprises: Determine a convolution kernel corresponding to each corresponding pixel point according to the diffuse spot distribution of each corresponding pixel point on the corresponding display panel; Performing a convolution operation on the source content to be displayed on the corresponding display panel based on the corresponding convolution core to obtain a convolution result corresponding to each corresponding pixel point; The convolution results corresponding to all the pixel points to be displayed on the corresponding display panel are superimposed at each pixel unit of the corresponding display panel to obtain the display content of each display panel in the multiple display panels. The method according to claim 14 is characterized in that, among the multiple display panels, the pixel unit spacing of each of the display panels is the same. The method according to claim 24 is characterized in that the image resolution of the three-dimensional film source content matches the number of pixel units of the display panel. The method according to claim 25, characterized in that obtaining the 3D film source content comprises: Acquiring a three-dimensional original film source content, wherein the image resolution of the three-dimensional original film source content does not match the number of pixel units of the display panel; The resolution of the three-dimensional original film source content is adjusted to obtain three-dimensional film source content, so that the image resolution of the three-dimensional film source content matches the number of pixel units of the display panel. The method according to claim 14 is characterized in that the distance between each two adjacent display panels in the plurality of display panels is the same. The method according to claim 14 is characterized in that the pixel units of all the multiple display panels are evenly arranged in orthographic projection on the transparent substrate of the display panel closest to the light emitting side of the display device. The method according to claim 14, characterized in that the number of the plurality of display panels is q ² , where q is a positive integer greater than 1; the orthographic projections of the pixel units of all the plurality of display panels on the transparent substrate of the display panel closest to the light-emitting side of the display device are arranged in an array with a spacing of 1/q*j in the first direction and the second direction, where j is the spacing of the pixel units of one of the display panels and is a positive number; The first direction and the second direction are directions parallel to the extending surface of the transparent substrate of the display panel closest to the light emitting side of the display device, and the first direction and the second direction are perpendicular to each other. The method according to claim 14, characterized in that the method further comprises: In response to the display device being in the second display mode, acquiring two-dimensional film source content; Display content to be displayed on the corresponding display panel is determined according to the two-dimensional film source content. A display driving device for a display device, the display device comprising a stacked arrangement A plurality of display panels, each display panel comprising a transparent substrate and a plurality of pixel units arranged in an array on one side of the transparent substrate, the pixel units of different display panels being arranged in a staggered manner so that the pixel units of each display panel are visible in a front view direction of the display device, the display driving device comprising: an acquisition device, configured to acquire 3D film source content in response to the display device being in the first display mode; a dividing device configured to divide the stereoscopic space of the 3D film source content according to the relative positions of the plurality of display panels, so as to determine the position of each pixel of the 3D film source content in the display space of the display device and at least one display panel on which each pixel is to be displayed; a dispersion speckle determination device configured to determine the dispersion speckle distribution of each corresponding pixel point in at least one display panel to be displayed according to the position of each corresponding pixel point of the three-dimensional film source content in the display space of the display device; The display content determination device is configured to determine the display content of each display panel in the plurality of display panels according to the diffuse spot distribution of each corresponding pixel point in the corresponding display panel in at least one display panel to be displayed. A computing device, comprising: a memory configured to store computer-executable instructions; A processor configured to perform the method according to any one of claims 14 to 30 when the computer executable instructions are executed by the processor. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed, the method according to any one of claims 14 to 30 is executed. A computer program product, characterized in that the computer program product comprises computer executable instructions, which implement the method according to any one of claims 14-30 when executed.