Three-dimensional light field display method and device for improving viewpoint intensity and electronic equipment

Abstract

The invention provides a three-dimensional light field display method and device for improving viewpoint intensity and electronic equipment, and relates to the technical field of three-dimensional display. The three-dimensional light field display method for improving the viewpoint intensity comprises the following steps: acquiring a plurality of first monocular views carrying number information in a first direction; determining the number of a first monocular view corresponding to the monocular view information filled in each position unit in the first light field imaging according to the imaging position of each display unit on the display panel in the first direction on the viewing plane and the first light field viewpoint density; filling the monocular view information in the plurality of first monocular views into the first light field imaging according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field imaging; the first light field is mapped and sent to a display plane module. According to the invention, the viewpoint intensity of the three-dimensional light field can be obviously improved on the premise of not changing the resolution of the light field display equipment.

Description

Technical Field

[0001] The present invention relates to the field of three-dimensional display technology, and in particular to a three-dimensional light field display method, device and electronic equipment for improving viewpoint density. Background Art

[0002] Current display technology is undergoing a revolution from two-dimensional to three-dimensional. With the rise of various new media technologies and human-computer interaction technologies, human demand for display technologies that can provide more realistic and immersive experiences has increased dramatically. Against this background, light field display technology came into being. Its core lies in the ability to record and reproduce the direction and intensity information of light, thereby presenting users with a real three-dimensional visual effect without the need to wear special glasses. Three-dimensional display adds depth information to traditional two-dimensional display, and can truly restore three-dimensional objects and scenes. It has broad application prospects in medical imaging, military command, intelligent manufacturing, and distance education. Three-dimensional display usually uses display panels and light control devices to construct different parallax images at different angles, providing viewers with a close-to-real three-dimensional visual experience.

[0003] In 3D display technology, viewpoint density is an important indicator that affects the accuracy of 3D display. The more complex the 3D scene is, the denser the viewpoints are needed to ensure the accuracy of the display. However, due to the limitations of existing 3D light field display devices, the viewpoint density is not the greater the better. Excessively increasing the viewpoint density will lead to a decrease in spatial resolution, resulting in a decrease in the clarity of the displayed image, which seriously affects the viewing experience. However, if the viewpoint density is too small, the details of the 3D display image will be lost, and the highly complex content in the 3D scene cannot be accurately displayed.

[0004] Therefore, how to significantly improve the viewpoint density of the three-dimensional light field without changing the resolution of the light field display device is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a three-dimensional light field display method, device and electronic device for improving viewpoint density, which are used to significantly improve the viewpoint density of the three-dimensional light field without changing the resolution of the light field display device.

[0006] The present invention provides a three-dimensional light field display method for improving viewpoint density, the method is applied to a processor on a display device, the display device comprises a dense array light control module and a display plane module which are arranged in parallel in sequence; wherein the display plane module comprises a display panel with point-to-point light control; the dense array light control module comprises an internally totally reflected light waveguide and a light control array, the light control array is attached to the light waveguide in a preset distribution mode, so that the light emitted by the backlight source of the display device passes through the attachment surface of the light control array and the light waveguide, and is refracted by the light control array. , forming a plurality of backlight areas at preset angles other than 90 degrees to the vertical direction in the display panel, wherein the backlight areas project the contents of the plurality of display units on the display panel covered by them onto the viewing plane along a first direction at a first light field viewpoint density according to the preset angles; wherein the first light field viewpoint density is the number of viewpoints contained in a first unit light field area on the viewing plane, the first unit light field area is the area formed by the backlight along the first direction projecting the contents of any of the display units onto the viewing plane, and the first light field viewpoint density is greater than 1. The method comprises: Acquire multiple first monocular views carrying numbering information in the first direction; determine the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map according to the imaging position of each display unit on the display panel on the viewing plane along the first direction and the first light field viewpoint density; wherein the first light field synthesis map is a light field synthesis map with a stereoscopic effect in the first direction; according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map, fill the monocular view information in the multiple first monocular views into the first light field synthesis map; send the first light field synthesis map to the display plane module, instruct the display plane module to display the first light field synthesis map on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the numbering sequence of the corresponding first monocular view.

[0007] According to a three-dimensional light field display method for improving viewpoint density provided by the present invention, the method of determining the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map according to the imaging position of each display unit on the display panel along the first direction on the viewing plane and the first light field viewpoint density, includes: for each imaging position of the display unit on the display panel along the first direction on the viewing plane, performing the following operations to determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis map corresponding to the display unit: determining the ratio between the distance along the first direction between the imaging position of the display unit on the viewing plane and the position of the first imaging point and the width of the first unit light field area, to obtain the first imaging position ratio value corresponding to the display unit; wherein the first imaging point is the imaging starting point of the backlight area covering the display unit on the viewing plane; using the first light field viewpoint density, performing a rounding operation on the first imaging position ratio value corresponding to the display unit, and determining the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis map corresponding to the display unit according to the result of the rounding operation.

[0008] According to a three-dimensional light field display method for improving viewpoint density provided by the present invention, the following formula is used to perform the step of performing a rounding operation on the first imaging position ratio value corresponding to the display unit using the first light field viewpoint density, and determining the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image corresponding to the display unit according to the result of the rounding operation:

[0009] in, is the inverse of the viewpoint density of the first light field, is the first imaging position ratio value, and n is the number of the first monocular view corresponding to the monocular view information filled with the position unit in the first light field synthesis image corresponding to the display unit.

[0010] According to a three-dimensional light field display method for improving viewpoint density provided by the present invention, the imaging position of any display unit along the first direction on the viewing plane is obtained in the following manner: the imaging position of the display unit along the first direction on the viewing plane is obtained based on the distance between the upper left corner of the display unit and the left edge of the light control array in the first direction.

[0011] The present invention provides a three-dimensional light field display method for improving viewpoint density, the method is applied to a processor on a display device, the display device includes a dense array light control module and a display plane module arranged in parallel in sequence; wherein the display plane module includes a display panel with point-to-point light control; the dense array light control module includes an internally totally reflected light waveguide and a light control array, the light control array is bonded to the light waveguide in a preset distribution manner, so that the light emitted by the backlight source of the display device, after passing through the bonding surface of the light control array and the light waveguide, is refracted by the light control array to form a plurality of backlight areas at a preset angle other than 90 degrees to the vertical direction in the display panel, and the backlight areas cover a plurality of display units on the display panel according to the preset angle. The content of the display unit is projected onto the viewing plane along the first direction with a first light field viewpoint density, and is projected onto the viewing plane along the second direction with a second light field viewpoint density; wherein the first light field viewpoint density is the number of viewpoints contained in a first unit light field area on the viewing plane, the first unit light field area is an area formed by the backlight along the first direction projecting the content of any of the display units onto the viewing plane, the first light field viewpoint density is greater than 1, the second light field viewpoint density is the number of viewpoints contained in a second unit light field area on the viewing plane, the second unit light field area is an area formed by the backlight along the second direction projecting the content of any of the display units onto the viewing plane, and the second light field viewpoint density is greater than 1; the method comprises: Acquire multiple first monocular views carrying numbering information in the first direction, and multiple second monocular views carrying numbering information in the second direction; determine the number of the first monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis map according to the imaging position of each display unit on the display panel on the viewing plane along the first direction, and the first light field viewpoint density; wherein the second light field synthesis map is a light field synthesis map with a stereoscopic effect in both the first direction and the second direction; determine the number of the second monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis map according to the imaging position of each display unit on the display panel on the viewing plane along the second direction, and the second light field viewpoint density. numbering; according to the numbering of the first monocular view and the numbering of the second monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis map, using a preset light field synthesis algorithm, filling the monocular view information in the multiple first monocular views and the monocular view information in the multiple second monocular views into the second light field synthesis map; sending the second light field synthesis map to the display plane module, instructing the display plane module to display the second light field synthesis map on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane along the first direction according to the numbering sequence of the corresponding first monocular view, and onto the viewing plane along the second direction according to the numbering sequence of the corresponding second monocular view.

[0012] According to a three-dimensional light field display method for improving viewpoint density provided by the present invention, the method of determining the number of the first monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis map according to the imaging position of each display unit on the display panel along the first direction on the viewing plane and the first light field viewpoint density, comprising: for each display unit on the display panel The imaging position along the first direction on the viewing plane, performing the following operations to determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis map corresponding to the display unit: determining the display unit The imaging position along the first direction on the viewing plane of each display unit on the display panel, performing the following operations to determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis map corresponding to the display unit The first imaging position ratio value corresponding to the display unit is obtained by calculating the ratio of the distance between the imaging position of the element on the viewing plane along the first direction and the position of the first imaging point along the first direction, and the width of the first unit light field area; wherein the first imaging point is the imaging starting point of the backlight area covering the display unit on the viewing plane; using the first light field viewpoint density, performing a rounding operation on the first imaging position ratio value corresponding to the display unit, and determining the number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image corresponding to the display unit according to the result of the rounding operation.

[0013] The present invention also provides a three-dimensional light field display device for improving viewpoint density, the device is arranged in a processor on a display device, and the device includes: an acquisition module, used to acquire multiple first monocular views carrying numbering information in the first direction; a determination module, used to determine the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map according to the imaging position of each display unit on the display panel on the viewing plane along the first direction, and the first light field viewpoint density; wherein the first light field synthesis map is a light field synthesis map with a stereoscopic effect in the first direction; a filling module, used to fill the monocular view information in the multiple first monocular views into the first light field synthesis map according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map; a sending module, used to send the first light field synthesis map to the display plane module, instructing the display plane module to display the first light field synthesis map on the display panel, so as to use the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the numbering sequence of the first monocular view corresponding to it.

[0014] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, a three-dimensional light field display method for improving viewpoint density as described in any one of the above is implemented.

[0015] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the three-dimensional light field display method for improving viewpoint density as described in any one of the above is implemented.

[0016] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the three-dimensional light field display method for improving viewpoint density as described in any one of the above methods is implemented.

[0017] The three-dimensional light field display method, device and electronic device for improving viewpoint density provided by the present invention obtain multiple backlight areas with preset angles other than 90 degrees to the vertical direction in the display panel through the distribution of the light array on the optical waveguide. The contents in multiple display units are projected into the first unit light field area by the inclined backlight area, thereby presenting more viewpoints in the same light field area, and significantly improving the viewpoint density of the three-dimensional light field without changing the resolution of the light field display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the display device provided by the present invention.

[0020] Figure 2 It is a schematic diagram of the display plane module, the light control array and the optical waveguide provided by the present invention.

[0021] Figure 3 It is a schematic diagram of a light-controlling grating structure provided by the present invention.

[0022] Figure 4 It is a schematic diagram of another light-controlling grating structure provided by the present invention.

[0023] Figure 5 It is a schematic diagram of a dense point array light control module provided by the present invention.

[0024] Figure 6 It is a schematic diagram of the lens array specifications of the dense array light control module provided by the present invention.

[0025] Figure 7 This is one of the flow charts of the three-dimensional light field display method for improving viewpoint density provided by the present invention.

[0026] Figure 8 It is a flowchart of a method for determining the serial number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image provided by the present invention.

[0027] Fig. 9 This is the second flow chart of the three-dimensional light field display method for improving viewpoint density provided by the present invention.

[0028] Fig.10 It is a flowchart of a method for determining the serial number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image provided by the present invention.

[0029] Fig.11 It is a schematic diagram of a dense line array light control module and corresponding viewpoint coding provided by the present invention.

[0030] Fig.12 It is a schematic diagram of local viewpoint coding of a dense array light control module provided by the present invention.

[0031] Fig.13 It is a schematic diagram of the arrangement of viewpoint coding information provided by the present invention.

[0032] Fig.14 It is a schematic diagram of the viewpoint arrangement of the L1 row of pixels provided by the present invention.

[0033] Fig.15 This is a schematic diagram of the L2 row pixel viewpoint arrangement provided by the present invention.

[0034] Fig.16 This is a schematic diagram of the L3 row pixel viewpoint arrangement provided by the present invention.

[0035] Fig.17 It is a structural schematic diagram of a three-dimensional light field display device for improving viewpoint density provided by the present invention.

[0036] Fig.18 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Combine the following Figure 1-Figure 6 The display device provided by the present invention is described.

[0039] Figure 1 Schematic diagram of the structure of the display device provided by the present invention. Figure 1 As shown, the display device includes a dense array light control module and a display plane module which are arranged in parallel in sequence.

[0040] The display plane module includes a display panel with point-to-point light control. A single point or single line light control unit from the dense array light control module can control all display units in a corresponding area of ​​the display panel. In the specific implementation process, for different types of display panels, the display unit can be a pixel unit or a sub-pixel unit.

[0041] like Figure 2 As shown, the dense array light control module is composed of a panel-shaped component, including an internal total reflection optical waveguide and a light control array, and the light control array is attached to the optical waveguide according to a preset distribution method.

[0042] The dense array light control module part can control the luminous effect of the backlight source, and transform the complete continuous surface backlight source of a general display device into two different light control areas: the luminous area (the area corresponding to the bonding surface of the light control array and the optical waveguide) and the non-luminous area.

[0043] In the luminous area, the light emitted from the backlight source of the display device can escape from the area normally, forming light sources with uniform brightness including but not limited to point array light sources, line array light sources, etc., which can illuminate the corresponding area in the display panel; in the non-luminous area, the light emitted from the backlight source of the display device is restricted and cannot escape from the area, forming a dark area without light.

[0044] In a specific implementation process, the light emitted by the backlight source of the display device, after passing through the bonding surface of the light control array and the optical waveguide, is refracted by the light control array to form multiple backlight areas (such as Fig.12 , the inclined shaded part shown), the backlight area projects the contents of multiple display units on the display panel covered by it onto the viewing plane along the first direction with a first light field viewpoint density, and projects it onto the viewing plane along the second direction with a second light field viewpoint density according to a preset angle; wherein the first light field viewpoint density is the number of viewpoints contained in the first unit light field area on the viewing plane, the first unit light field area is the area formed by the backlight along the first direction projecting the contents of any display unit onto the viewing plane, the first light field viewpoint density is greater than 1, the second light field viewpoint density is the number of viewpoints contained in the second unit light field area on the viewing plane, the second unit light field area is the area formed by the backlight along the second direction projecting the contents of any display unit onto the viewing plane, and the second light field viewpoint density is greater than 1.

[0045] The viewing plane is a plane parallel to the display panel where the observer's line of sight lies when the observation distance between the observer and the display device is given.

[0046] In a specific implementation process, the first direction may be a horizontal direction or a vertical direction, and is not limited by the description in this specification.

[0047] In the related art, under the projection of continuous and uniform backlight, the number of projected viewpoints in each first unit light field area is 1, that is, the viewpoint density of the first light field is equal to 1. In the embodiment provided by the present invention, by controlling the distribution mode of the control light array on the optical waveguide, a plurality of backlight areas with a preset angle of non-90 degrees to the vertical direction in the display panel are obtained, and the inclined backlight area projects the contents in the plurality of display units into the first unit light field area under the viewing plane, thereby presenting more viewpoints in the same light field area, and significantly improving the viewpoint density of the three-dimensional light field without changing the resolution of the light field display device.

[0048] The higher the viewpoint density of the first light field is, the greater the amount of spatial information contained in the light field region in the first direction is, thereby being able to present more natural and realistic depth clue information in the first direction.

[0049] Correspondingly, the higher the viewpoint density of the second light field is, the greater the amount of spatial information contained in the light field area in the second direction is, thereby being able to present more natural and realistic depth clue information in the second direction.

[0050] In a specific implementation process, the first light field viewpoint density can be set by adjusting the distribution of the light control array on the surface of the optical waveguide. Fig.12 The light control array shown in FIG. 1 projects the contents displayed by the three display units into a first unit light field area, and the following can be obtained: Fig.13 As shown, a high-density three-dimensional display effect of 21 viewpoints is displayed in 7 first unit light field areas.

[0051] For example, by adjusting the distribution of the light control array, Fig.12 The preset angle between the backlight area and the vertical direction within the display panel can project the display contents of the five display units into a first unit light field area, and the first light field viewpoint density corresponding to the adjusted distribution method is 5.

[0052] In the embodiment provided by the present invention, the number of viewpoints that can be imaged by a single backlight area in the first direction under the viewing plane is as follows: If R (the horizontal displacement of two rows of backlight areas) is an integer, then: ; If R is not an integer, then: ,in Express Rounded, n is the number of display units located between the center points of the two backlight areas, is the viewpoint density of the first light field, b The horizontal width of the display unit.

[0053] The light control array is made of periodically arranged strips (such as Figure 3 The light control grating structure shown) or a point array light source (such as Figure 4 The light-controlling grating structure shown in the figure can control the light to form the required line array or point array backlight source luminous effect.

[0054] In some embodiments, the grating has a directional light control effect, and a light control grating is selected as the light control array. A light control grating module that meets the light control effect of three-dimensional light field display is attached to the upper surface of the light waveguide panel near the display device module, so that light can propagate inside the light waveguide panel and can only escape the light waveguide from the area where the light control grating module is attached, forming a light-emitting area, and the remaining area where the light control grating module is not attached forms a non-light-emitting area. The light control grating is a cylinder with a semi-elliptical cross section, and one side of its plane is tightly attached to the light waveguide panel.

[0055] Just as an example, Figure 3 The light control grating structure shown is composed of multiple cylindrical lenses of the same specifications, which can make the light emitted by the dense array light control module part arranged in a linear array. For the preferred cylindrical lens grating, its size should be consistent with the size of the light source in the light-emitting area of ​​the dense array light control module part in the design, and the refractive index of the lens grating should be similar to that of the optical waveguide. For example, the width of the area where a single grating fits the optical waveguide panel should be less than or equal to the width of the smallest display unit (for example, pixel or pixel) of the display panel, the grating height should be less than or equal to half the width of the fitting area, and the length should be consistent with the height and width of the waveguide material panel.

[0056] As an example, for a preferred display device with parallax in both horizontal and vertical directions, the dense array light control module part is attached to the optical waveguide panel as shown in FIG. Figure 4 The lens array shown is composed of a plurality of dot lenses of the same specifications, so that the light emitted by the dense array light control module part is arranged in a dot array. The size of the point light source generated by the dot lens should be consistent with the size of the display unit (for example, pixel or sub-pixel) of the display panel or smaller than the size of the display unit. The imaging position of each display unit on the display panel of the display device in the first direction under the viewing plane is determined by the distribution mode of the dot lenses in the first direction, and the imaging position of each display unit on the display panel of the display device in the second direction under the viewing plane is determined by the distribution mode of the dot lenses in the second direction.

[0057] For the optical waveguide, it is preferred to use a light-transmitting material with a refractive index greater than 1.4. In the specific implementation process, a glue layer with a refractive index close to that of the optical waveguide and the light control array can be used to stick the two together. For a preferred dense array light control module part, a manufacturing process combining the optical waveguide and the light control array is used to directly form a grating lens-shaped protrusion on the smooth surface of the optical waveguide, while maintaining the light control effect, reducing the light loss caused by the bonding of the two.

[0058] like Figure 5 and Figure 6 The display panel and light control array shown in the figure have a minimum controllable display unit (pixel or sub-pixel) with a vertical length of a and a horizontal width of b. In the dense array light control module part, the vertical length of a single light emitting area (for example, a single light control grating) is h , horizontal width is l The horizontal period spacing between the individual light-emitting areas of the light-control array is P, and the vertical period spacing is Q.

[0059] When the display device performs a three-dimensional light field display task in a single direction, the size of a single light-emitting area on the dense array light control module part must meet l ≤b, for h No restrictions.

[0060] The viewing angle θ of the three-dimensional image obtained by the display device is determined by the distance L between the dense array light control module part and the display panel, and the horizontal period spacing P of the light-emitting area on the module, and satisfies the following formula: (1)

[0061] When the display device performs a three-dimensional light field display task with parallax in both horizontal and vertical directions, the size of each luminous area must meet , .

[0062] Horizontal viewing angle of a three-dimensional image obtained using a display device Vertical viewing angle , which is determined by the distance L between the dense array light control module and the display panel, and the horizontal period spacing P and vertical period spacing Q of the light-emitting area on the module, and satisfies the following formula: (2)

[0063] (3)

[0064] In the specific implementation process, in order to obtain a clearer display effect and avoid two pixels of the same color being imaged adjacently, the horizontal period spacing P of the light-emitting area, the vertical period spacing Q, and the horizontal displacement R of the two rows of light-emitting areas should satisfy the following formula: (4)

[0065] (5)

[0066] (6)

[0067] in, i is a positive integer that is not a multiple of 3, j is any positive integer, x is any number between 0 and b, y is any number between 0 and a, and R is any number between 0 and P.

[0068] As an example only, the display device may be used as follows Figure 5 and Figure 6 The 4k resolution LCD panel shown is used as the display panel. The smallest controllable unit of the LCD panel is a single pixel. The vertical length of the pixel is a=36.75μm and the horizontal width is b=12.25μm. The pixels are arranged in a cyclical pattern of RGB (red, green and blue) in the horizontal direction; in the vertical direction, each column of pixels has the same color. When the design only has a light field display system with N=21 viewpoints in the horizontal direction under the viewing plane. According to the design parameters, the horizontal period spacing of the line array should be P=85.75μm, and the horizontal width of a single line light source should be n= l =12.25μm, the vertical length of the line light source is the same as the vertical length of the waveguide material. There is a glass interlayer with a thickness of 600μm between the 3D light guide plate and the LCD panel. This parameter achieves a viewing range of 28cm continuous visible 3D scene at a viewing distance of 40cm, and the viewing angle of the 3D scene reaches about 40 degrees.

[0069] The display device provided by the present invention utilizes a light waveguide including total internal reflection and a dense array light control module attached to the light waveguide in a preset distribution mode to generate a backlight area that can light up a corresponding area of ​​a display panel with point-to-point light control. Then, according to the distribution mode of the light control array on the light waveguide, the three-dimensional light field display method for improving the viewpoint density provided by the present invention (for a detailed description, see Figures 7 to 10 The relevant content in the text will not be repeated here), and a three-dimensional image with a high viewpoint density, an orderly and coherent viewing plane is obtained.

[0070] Combine the following Figure 7-10 The present invention describes a three-dimensional light field display method for improving viewpoint density.

[0071] Figure 7 This is one of the flow charts of the three-dimensional light field display method for improving viewpoint density provided by the present invention, such as Figure 7 As shown, the method includes the following: Step 701: Acquire a plurality of first monocular views carrying numbering information in a first direction.

[0072] A monocular view refers to an image or view captured by only one camera (monocular lens). As an example only, the first direction is a horizontal direction, and the multiple first monocular views may include: a left view, a right view, and the like.

[0073] In the specific implementation process, each first monocular view may be numbered according to the light field synthesis rule actually used, and is not limited by the description of this specification. For example, if it is necessary to fill the light field synthesis map according to the position of the camera that took the first monocular view, each first monocular view may be numbered according to the physical position or layout of the camera to obtain the numbering information of each first monocular view.

[0074] In a specific implementation process, a module in a processor that executes the three-dimensional light field display method for improving viewpoint density provided by the present invention can obtain multiple first monocular views from other processing modules through common methods (for example, interface calls or memory sharing, etc.), which is not limited to the description of this specification.

[0075] Step 702: Determine the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image according to the imaging position of each display unit on the display panel along the first direction on the viewing plane and the first light field viewpoint density.

[0076] Light field synthesis is based on the principle of light field imaging. It processes and analyzes the collected multi-dimensional monocular view information to synthesize image data with specific viewing angle, focal length or depth information.

[0077] The first light field synthesis image is a light field synthesis image having a stereoscopic effect in a first direction.

[0078] For a detailed description of the first light field viewpoint density, see Figure 1 The relevant content in will not be repeated here.

[0079] In a specific implementation process, the imaging position of each display unit on the display panel on the viewing plane is determined by the distribution mode of the light control array on the surface of the optical waveguide.

[0080] In some embodiments, the light control array is distributed on the surface of the optical waveguide in a manner such as: Fig.11 As shown in FIG. 1 , each group of light control arrays is tilted and distributed on the surface of the optical waveguide at a preset angle other than 90 degrees. Fig.12As shown, according to the lens projection principle, the imaging position of each display unit on the display panel in the first direction under the viewing plane can be obtained in the following manner: according to the horizontal distance between the upper left corner of any display unit and the left edge of the light control array, the imaging position of the display unit in the first direction under the viewing plane is obtained.

[0081] In the related art, the monocular view information at different positions in the plurality of first monocular views is filled into the first light field synthesis map according to the numbering order of each first monocular view. For example, for a total of 12 first monocular views, the first monocular view information extracted from the first monocular view numbered 1 can be filled into the first position unit of the first light field synthesis map; the first monocular view information extracted from the first monocular view numbered 2 can be filled into the second position unit of the first light field synthesis map; the first monocular view information extracted from the first monocular view numbered 3 can be filled into the third position unit of the first light field synthesis map, and so on, until the first monocular view information extracted from the first monocular view numbered 12 is filled into the 12th position unit of the first light field synthesis map, and then the second monocular view information extracted from the first monocular view numbered 1 can be filled into the 13th position unit of the first light field synthesis map in the above order...

[0082] In the embodiments provided by the present invention, Fig.13 As shown, the backlight area can continuously project the display contents of the display units in different rows on the display panel onto the viewing plane. If the filling order of the first monocular view in the related art is followed, the final imaging information will be disordered. Therefore, it is necessary to adjust the order of filling the first monocular view of the first light field synthesis image so that the backlight area projects each monocular view information displayed by the display panel onto the viewing plane according to the numbering order of the corresponding first monocular view.

[0083] As an example only, from a top view, the backlight area of ​​the dense line array light control module is Fig.12 The gray area diagonally extending from the upper left to the lower right in the display panel (displaying the first light field synthesis image). Fig.13 The three display units in the L1th row, the L2th row, and the L3th row in the display panel shown are covered by the backlight area: the first column of the L1th row, the second column of the L2th row, and the third column of the L3th row, which are projected into the first unit light field area in the order of 1, 3, and 2. Therefore, the numbers of the first monocular views corresponding to the monocular view information filled in the corresponding position units of the above three display units in the first light field synthesis image need to be adjusted to 1, 3, and 2, respectively.

[0084] For an embodiment of a method for determining the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image, see Figure 8 The relevant content in will not be repeated here.

[0085] Step 703: fill the monocular view information in the plurality of first monocular views into the first light field synthesis map according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map.

[0086] As an example only, the first monocular views corresponding to the monocular view information filled in each position unit in the first light field synthesis image are numbered as follows: 1, 4, 7, 10, 13, 16, 19, etc. Fig.12 As shown, the first monocular view information extracted from the first monocular view numbered 1 can be filled into the first position unit of the first light field synthesis image; the first monocular view information extracted from the first monocular view numbered 4 can be filled into the second position unit of the first light field synthesis image; the first monocular view information extracted from the first monocular view numbered 7 can be filled into the tenth position unit of the first light field synthesis image….

[0087] Step 704: Send the first light field synthesis image to the display plane module, instructing the display plane module to display the first light field synthesis image on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the numbering order of the corresponding first monocular view.

[0088] In the specific implementation process, the module executing the three-dimensional light field display method for improving viewpoint density provided by the present invention can send the first light field synthesis image to the relevant driving module in the display plane module in a common manner (for example, interface call or memory sharing, etc.), and the driving module displays the first light field synthesis image on the display panel. When the display plane module displays the first light field synthesis image, each backlight area formed by the dense array light control module projects each monocular view information displayed by the display panel onto the viewing plane according to the numbering sequence of the corresponding first monocular view.

[0089] Just as an example, Fig.12 The first light field synthesis image shown on the display panel is projected onto Fig.13 After the viewing plane shown, on the viewing plane, the numbers of the first monocular views corresponding to the viewpoints arranged continuously are also continuous.

[0090] In the embodiment provided by the present invention, the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map is determined according to the imaging position of each display unit on the display panel on the viewing plane and the first light field viewpoint density; according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map, the monocular view information in multiple first monocular views is filled into the first light field synthesis map; after the first light field synthesis map is displayed on the display panel, each monocular view information displayed by the display panel is projected onto the viewing plane according to the number sequence of the corresponding first monocular view by using the backlight area, so as to obtain an orderly and coherent three-dimensional image with a high viewpoint density under the viewing plane.

[0091] Figure 8 : is a flow chart of a method for determining the serial number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image provided by the present invention, such as Figure 8 As shown, for each imaging position of each display unit on the display panel along the first direction on the viewing plane, the following steps are performed to determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis map corresponding to the display unit.

[0092] Step 801: determine the ratio of the distance along a first direction between the imaging position of the display unit on the viewing plane and the position of the first imaging point, and the width of the first unit light field area, to obtain a first imaging position ratio value corresponding to the display unit.

[0093] Among them, Fig.14 As shown, the first imaging point is the imaging starting point of the backlight area covering the display unit on the viewing plane, that is, the imaging point closest to the left edge of the display panel among all the imaging points in the backlight area.

[0094] As an example only, Fig.13 The display panel shown in FIG. Fig.14 As shown, the imaging position of the display unit of the first column of row L1 in the first direction under the viewing plane coincides with the first imaging point. Therefore, the first imaging position ratio value corresponding to the display unit is 0. Similarly, the imaging position of the display unit of the seventh column of row L1 in the first direction under the viewing plane is 6. , is the width of the first unit light field area, therefore, the first imaging position ratio value corresponding to the display unit is 6; Fig.15 As shown, the imaging position of the display unit of the second column of row L2 in the first direction under the viewing plane is Therefore, the first imaging position ratio value corresponding to the display unit is ;like Fig.16 As shown, the imaging position of the display unit of the second column of row L3 in the first direction under the viewing plane is Therefore, the first imaging position ratio value corresponding to the display unit is .

[0095] Step 802: using the first light field viewpoint density, perform a rounding operation on the first imaging position ratio value corresponding to the display unit, and determine, according to the result of the rounding operation, the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image corresponding to the display unit.

[0096] The first light field viewpoint density is used to perform a rounding operation on the first imaging position ratio value corresponding to the display unit, that is, the first imaging position ratio value obtained in step 801 is converted into an integer, and an arrangement position number of the viewpoint corresponding to the display unit under the viewing plane is obtained, and the position number is used as the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image corresponding to the display unit.

[0097] In a specific implementation process, the following formula may be used to perform a rounding operation on the first imaging position ratio value corresponding to the display unit, and according to the result of the rounding operation, determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image corresponding to the display unit: (7)

[0098] in, is the inverse of the viewpoint density of the first light field, is the first imaging position ratio value corresponding to the display unit, n It is the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image corresponding to the display unit.

[0099] Just as an example, Fig.12 In the first light field synthesis image shown in FIG. 1 , the first light field viewpoint density and the first imaging position ratio value corresponding to each display unit are substituted into formula (7) to calculate the number of the first monocular view corresponding to the monocular view information filled in the first column of row L1 in the first light field synthesis image: ; The number of the first monocular view corresponding to the monocular view information filled in the second column of the L2 row in the first light field synthesis image is: The number of the first monocular view corresponding to the monocular view information filled in the second column of the L3 row in the first light field synthesis image is: ; The number of the first monocular view corresponding to the monocular view information filled in the 7th column of the L3 row in the first light field synthesis image is: .

[0100] Fig. 9 This is the second flow chart of the three-dimensional light field display method for improving viewpoint density provided by the present invention.

[0101] This method is applied to a processor on a display device. For a detailed description of the display device, see Figure 1 The relevant content in will not be repeated here.

[0102] like Fig. 9 As shown, the method comprises the following steps: Step 901: Acquire a plurality of first monocular views carrying number information in a first direction and a plurality of second monocular views carrying number information in a second direction.

[0103] In a specific implementation, the first direction may be a horizontal direction, and the second direction may be a vertical direction, which are not limited by the description of this specification. For a detailed description of the first monocular view and the second monocular view, see Figure 7 The relevant content in will not be repeated here.

[0104] In a specific implementation process, a module in a processor that executes the three-dimensional light field display method for improving viewpoint density provided by the present invention can obtain multiple first monocular views and multiple second monocular views from other processing modules through common methods (for example, interface calls or memory sharing, etc.), which is not limited to the description of this specification.

[0105] Step 902: Determine the number of the first monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis image according to the imaging position of each display unit on the display panel along the first direction on the viewing plane and the viewpoint density of the first light field.

[0106] For a detailed description of the first light field viewpoint density, see Figure 1 The relevant content in will not be repeated here.

[0107] For a detailed description of determining the imaging position of each display unit on the display panel along the first direction or the second direction on the viewing plane, see Figure 7 The relevant content in will not be repeated here.

[0108] The second light field synthesis image is a light field synthesis image having a stereoscopic effect in both the first direction and the second direction.

[0109] For determining the number of the first monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis image, see Fig.10 The relevant content in will not be repeated here.

[0110] Step 903: determine the number of the second monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis image according to the imaging position of each display unit on the display panel along the second direction on the viewing plane and the second light field viewpoint density.

[0111] Step 904: fill the monocular view information in the plurality of first monocular views and the monocular view information in the plurality of second monocular views into the second light field synthesis image using a preset light field synthesis algorithm according to the number of the first monocular view and the number of the second monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis image.

[0112] In the specific implementation process, monocular view information can be extracted from preset positions of the first monocular view and the second monocular view respectively, and the monocular view information in the first direction and the second direction obtained by the preset light field synthesis algorithm can be synthesized and filled into the corresponding position units in the second light field synthesis image.

[0113] Step 905: Send the second light field synthesis image to the display plane module, and instruct the display plane module to display the second light field synthesis image on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane along the first direction according to the numbering sequence of the corresponding first monocular view, and project each monocular view information onto the viewing plane along the second direction according to the numbering sequence of the corresponding second monocular view.

[0114] Fig.10 : is a flow chart of a method for determining the serial number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image provided by the present invention, such as Fig.10 As shown, for each imaging position of each display unit on the display panel along the first direction on the viewing plane, the following operation is performed to determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image corresponding to the display unit.

[0115] Step 1001: determine the ratio of the distance along the first direction between the imaging position of the display unit on the viewing plane and the position of the first imaging point, and the width of the first unit light field area, to obtain a first imaging position ratio value corresponding to the display unit.

[0116] The first imaging point is the imaging starting point of the backlight area covering the display unit on the viewing plane.

[0117] For a detailed description of this step, see Figure 8 The relevant content in will not be repeated here.

[0118] Step 1002: using the first light field viewpoint density, perform a rounding operation on the first imaging position ratio value corresponding to the display unit, and determine, based on the result of the rounding operation, the number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image corresponding to the display unit.

[0119] In a specific implementation process, the following formula may be used to perform a rounding operation on the first imaging position ratio value corresponding to the display unit using the first light field viewpoint density, and determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image corresponding to the display unit according to the result of the rounding operation: (8)

[0120] in, is the inverse of the viewpoint density of the first light field, is the first imaging position ratio value corresponding to the display unit, x It is the number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image corresponding to the display unit.

[0121] In a specific implementation process, the ratio of the distance along the second direction between the imaging position of the display unit and the position of the first imaging point on the viewing plane and the width of the second unit light field area can be determined to obtain a second imaging position ratio value corresponding to the display unit; using the second light field viewpoint density, a rounding operation is performed on the second imaging position ratio value corresponding to the display unit, and according to the result of the rounding operation, the number of the second monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis map corresponding to the display unit is determined.

[0122] In a specific implementation process, the above method may be executed using the following formula to determine the number of the second monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis image: (9)

[0123] in, is the inverse of the viewpoint density of the second light field, is the second imaging position ratio value corresponding to the display unit, y The serial number of the second monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image corresponding to the display unit.

[0124] For a more detailed description of this step, see Figure 8 The relevant content in will not be repeated here.

[0125] The following is a description of a three-dimensional light field display device for improving viewpoint density provided by the present invention. The three-dimensional light field display device for improving viewpoint density described below and the three-dimensional light field display method for improving viewpoint density described above can be referred to each other.

[0126] Fig.17 It is a structural schematic diagram of a three-dimensional light field display device for improving viewpoint density provided by the present invention.

[0127] The device is arranged in a processor on the display device. For a detailed description of the display device, see Figure 1 The relevant content in will not be repeated here.

[0128] like Fig.17 As shown, the device 1700 includes the following modules.

[0129] The acquisition module 1710 is configured to acquire a plurality of first monocular views carrying numbering information in the first direction.

[0130] A determination module 1720 is used to determine the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image according to the imaging position of each display unit on the display panel along the first direction on the viewing plane and the first light field viewpoint density; wherein the first light field synthesis image is a light field synthesis image with a stereoscopic effect in the first direction.

[0131] The filling module 1730 is configured to fill the monocular view information in the plurality of first monocular views into the first light field synthesis image according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image.

[0132] The sending module 1740 is used to send the first light field synthesis image to the display plane module, instructing the display plane module to display the first light field synthesis image on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the numbering order of the corresponding first monocular view.

[0133] Fig.18 An example of a physical structure diagram of an electronic device is shown in FIG. Fig.18As shown, the electronic device may include: a processor (processor) 1810 , a communication interface (Communications Interface) 1820 , a memory (memory) 1830 and a communication bus 1840 , wherein the processor 1810 , the communication interface 1820 , and the memory 1830 communicate with each other via the communication bus 1840 . The processor 1810 can call the logic instructions in the memory 1830 to execute a three-dimensional light field display method for improving viewpoint density, the method comprising: obtaining a plurality of first monocular views carrying number information in the first direction; determining the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map according to the imaging position of each display unit on the display panel on the viewing plane along the first direction and the first light field viewpoint density; wherein the first light field synthesis map is a light field synthesis map with a stereoscopic effect in the first direction; according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map, the monocular view information in the plurality of first monocular views is filled into the first light field synthesis map; sending the first light field synthesis map to the display plane module, instructing the display plane module to display the first light field synthesis map on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the number sequence of the first monocular view corresponding to it.

[0134] In addition, the logic instructions in the above-mentioned memory 1830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0135] On the other hand, the present invention further provides a computer program product, the computer program product includes a computer program, the computer program can be stored on a non-transitory computer-readable storage medium, when the computer program is executed by a processor, the computer can execute the three-dimensional light field display method for improving viewpoint density provided by the above methods, the method comprising: obtaining a plurality of first monocular views carrying numbering information in the first direction; determining the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image according to the imaging position of each display unit on the display panel on the viewing plane along the first direction, and the first light field viewpoint density; wherein the first light field synthesis image is a light field synthesis image with a stereoscopic effect in the first direction; according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image, the monocular view information in the plurality of first monocular views is filled into the first light field synthesis image; The first light field synthesis image is sent to the display plane module, and the display plane module is instructed to display the first light field synthesis image on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the numbering order of the corresponding first monocular view.

[0136] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the processor executes the three-dimensional light field display method for improving viewpoint density provided by the above methods, the method comprising: obtaining a plurality of first monocular views carrying numbering information in the first direction; determining the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map according to the imaging position of each display unit on the display panel on the viewing plane along the first direction, and the first light field viewpoint density; wherein the first light field synthesis map is a light field synthesis map with a stereoscopic effect in the first direction; according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map, the monocular view information in the plurality of first monocular views is filled into the first light field synthesis map; the first light field synthesis map is sent to the display plane module, instructing the display plane module to display the first light field synthesis map on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the numbering sequence of the first monocular view corresponding to it.

[0137] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0138] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0139] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A three-dimensional light field display method for improving viewpoint density, characterized in that: The method is applied to a processor on a display device, wherein the display device includes a dense array light control module and a display plane module which are sequentially arranged in parallel; wherein the display plane module includes a display panel with point-to-point light control; the dense array light control module includes an internally totally reflected light waveguide and a light control array, wherein the light control array is attached to the light waveguide in a preset distribution manner, so that after the light emitted by the backlight source of the display device passes through the attached surface of the light control array and the light waveguide, under the refraction of the light control array, a plurality of backlight areas are formed at a preset angle of non-90 degrees to the vertical direction in the display panel, wherein the backlight area projects the contents of a plurality of display units on the display panel covered by it onto a viewing plane along a first direction at a first light field viewpoint density according to the preset angle; wherein the first light field viewpoint density is the number of viewpoints contained in a first unit light field area on the viewing plane, and the first unit light field area is an area formed by the backlight along the first direction projecting the contents of any display unit onto the viewing plane, and the first light field viewpoint density is greater than 1; the method includes: Acquire a plurality of first monocular views carrying number information in the first direction; Determine, according to the imaging position of each display unit on the display panel along the first direction on the viewing plane, and the first light field viewpoint density, the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis map; wherein the first light field synthesis map is a light field synthesis map having a stereoscopic effect in the first direction; Filling the monocular view information in the plurality of first monocular views into the first light field synthesis image according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image; The first light field synthesis image is sent to the display plane module, and the display plane module is instructed to display the first light field synthesis image on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the numbering order of the corresponding first monocular view.

2. The three-dimensional light field display method for improving viewpoint density according to claim 1, characterized in that: The determining, according to the imaging position of each display unit on the display panel along the first direction on the viewing plane and the first light field viewpoint density, the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image comprises: For each imaging position of each display unit on the display panel along the first direction on the viewing plane, the following operation is performed to determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image corresponding to the display unit: Determine the ratio of the distance along the first direction between the imaging position of the display unit on the viewing plane and the position of the first imaging point, and the width of the first unit light field area, to obtain a first imaging position ratio value corresponding to the display unit; wherein the first imaging point is the imaging starting point of the backlight area covering the display unit on the viewing plane; A rounding operation is performed on the first imaging position ratio value corresponding to the display unit by using the first light field viewpoint density, and a number of a first monocular view corresponding to the monocular view information filled with the position unit in the first light field synthesis image corresponding to the display unit is determined according to a result of the rounding operation.

3. The three-dimensional light field display method for improving viewpoint density according to claim 2, characterized in that: The step of performing a rounding operation on the first imaging position ratio value corresponding to the display unit by using the first light field viewpoint density and determining, according to a result of the rounding operation, a number of the first monocular view corresponding to the monocular view information filled in the position unit in the first light field synthesis image corresponding to the display unit is performed using the following formula: in, is the inverse of the viewpoint density of the first light field, is the first imaging position ratio value, and n is the number of the first monocular view corresponding to the monocular view information filled with the position unit in the first light field synthesis image corresponding to the display unit.

4. The three-dimensional light field display method for improving viewpoint density according to claim 3, characterized in that: The imaging position of any one of the display units along the first direction on the viewing plane is obtained in the following manner: According to the distance between the upper left corner of the display unit and the left edge of the light control array in the first direction, the imaging position of the display unit on the viewing plane along the first direction is obtained.

5. A three-dimensional light field display method for improving viewpoint density, characterized in that: The method is applied to a processor on a display device, wherein the display device includes a dense array light control module and a display plane module arranged in parallel in sequence; wherein the display plane module includes a display panel with point-to-point light control; the dense array light control module includes an internally totally reflected light waveguide and a light control array, wherein the light control array is bonded to the light waveguide in a preset distribution manner, so that the light emitted by the backlight source of the display device, after passing through the bonding surface between the light control array and the light waveguide, is refracted by the light control array to form a plurality of backlight areas at a preset angle other than 90 degrees to the vertical direction in the display panel, wherein the backlight areas, according to the preset angle, reflect the contents of the plurality of display units on the display panel covered by them along a first direction. , projected onto the viewing plane with a first light field viewpoint density, and projected onto the viewing plane with a second light field viewpoint density along a second direction; wherein the first light field viewpoint density is the number of viewpoints contained in a first unit light field area on the viewing plane, the first unit light field area is an area formed by the backlight along the first direction projecting the content of any of the display units onto the viewing plane, the first light field viewpoint density is greater than 1, the second light field viewpoint density is the number of viewpoints contained in a second unit light field area on the viewing plane, the second unit light field area is an area formed by the backlight along the second direction projecting the content of any of the display units onto the viewing plane, the second light field viewpoint density is greater than 1; Acquire a plurality of first monocular views carrying number information in the first direction, and a plurality of second monocular views carrying number information in the second direction; Determine, according to the imaging position of each display unit on the display panel along the first direction on the viewing plane, and the viewpoint density of the first light field, the number of the first monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis map; wherein the second light field synthesis map is a light field synthesis map having a stereoscopic effect in both the first direction and the second direction; Determining, according to the imaging position of each display unit on the display panel along the second direction on the viewing plane and the viewpoint density of the second light field, the number of the second monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis image; Filling the monocular view information in the plurality of first monocular views and the monocular view information in the plurality of second monocular views into the second light field synthesis map using a preset light field synthesis algorithm according to the number of the first monocular view and the number of the second monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis map; The second light field synthesis image is sent to the display plane module, and the display plane module is instructed to display the second light field synthesis image on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane along the first direction according to the numbering sequence of the corresponding first monocular view, and project onto the viewing plane along the second direction according to the numbering sequence of the corresponding second monocular view.

6. The three-dimensional light field display method for improving viewpoint density according to claim 5, characterized in that: The determining, according to the imaging position of each display unit on the display panel along the first direction on the viewing plane and the first light field viewpoint density, the number of the first monocular view corresponding to the monocular view information filled in each position unit in the second light field synthesis image comprises: For each imaging position of each display unit on the display panel along the first direction on the viewing plane, the following operation is performed to determine the number of the first monocular view corresponding to the monocular view information filled in the position unit in the second light field synthesis image corresponding to the display unit: Determine a ratio between a distance along the first direction between an imaging position of the display unit on the viewing plane and a position of a first imaging point, and a width of the first unit light field area, to obtain a first imaging position ratio value corresponding to the display unit; wherein the first imaging point is an imaging starting point of a backlight area covering the display unit on the viewing plane; A rounding operation is performed on the first imaging position ratio value corresponding to the display unit by using the first light field viewpoint density, and a number of a first monocular view corresponding to the monocular view information filled with the position unit in the second light field synthesis image corresponding to the display unit is determined according to a result of the rounding operation.

7. A three-dimensional light field display device with improved viewpoint density, characterized in that: The device is arranged in a processor on a display device, and the display device comprises a dense array light control module and a display plane module which are arranged in parallel in sequence; wherein the display plane module comprises a display panel with point-to-point light control; the dense array light control module comprises an internally totally reflected light waveguide and a light control array, and the light control array is attached to the light waveguide in a preset distribution mode, so that the light emitted by the backlight source of the display device, after passing through the attachment surface of the light control array and the light waveguide, is refracted by the light control array to form a plurality of backlight areas which are at a preset angle of non-90 degrees to the vertical direction in the display panel, and the backlight area projects the contents of a plurality of display units on the display panel covered by it onto a viewing plane along a first direction with a first light field viewpoint density according to the preset angle; wherein the first light field viewpoint density is the number of viewpoints contained in a first unit light field area on the viewing plane, and the first unit light field area is an area formed by the backlight along the first direction projecting the contents of any display unit onto the viewing plane, and the first light field viewpoint density is greater than 1; the device comprises: An acquisition module, configured to acquire a plurality of first monocular views carrying numbering information in the first direction; a determination module, configured to determine, according to the imaging positions of the respective display units on the display panel on the viewing plane along the first direction and the first light field viewpoint density, the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image; wherein the first light field synthesis image is a light field synthesis image having a stereoscopic effect in the first direction; a filling module, configured to fill the monocular view information in the plurality of first monocular views into the first light field synthesis image according to the number of the first monocular view corresponding to the monocular view information filled in each position unit in the first light field synthesis image; A sending module is used to send the first light field synthesis image to the display plane module, instructing the display plane module to display the first light field synthesis image on the display panel, so as to utilize the backlight area to project each monocular view information displayed by the display panel onto the viewing plane according to the numbering order of the corresponding first monocular view.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the three-dimensional light field display method for improving viewpoint density as claimed in any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the three-dimensional light field display method for improving viewpoint density as claimed in any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the three-dimensional light field display method for improving viewpoint density as claimed in any one of claims 1 to 6 is implemented.

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