WO2022226832A1 - 一种旋转立体显示装置和显示控制方法 - Google Patents

一种旋转立体显示装置和显示控制方法 Download PDF

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Publication number
WO2022226832A1
WO2022226832A1 PCT/CN2021/090520 CN2021090520W WO2022226832A1 WO 2022226832 A1 WO2022226832 A1 WO 2022226832A1 CN 2021090520 W CN2021090520 W CN 2021090520W WO 2022226832 A1 WO2022226832 A1 WO 2022226832A1
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Prior art keywords
display
area
display area
display panel
axis
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PCT/CN2021/090520
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English (en)
French (fr)
Inventor
李茜
王龙辉
王雪丰
苗京花
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京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2021/090520 priority Critical patent/WO2022226832A1/zh
Priority to CN202180001051.4A priority patent/CN115668339A/zh
Priority to US17/789,408 priority patent/US20240187564A1/en
Publication of WO2022226832A1 publication Critical patent/WO2022226832A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/398—Synchronisation thereof; Control thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/33—Acousto-optical deflection devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
    • H04N13/393—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume the volume being generated by a moving, e.g. vibrating or rotating, surface

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a rotary stereoscopic display device and a display control method.
  • Rotating the stereoscopic display device refers to controlling the rotation of the display panel, and controlling the display panel to display the corresponding image when the display panel rotates to a specific phase. In this way, due to visual persistence, the image observed by the user can be a stereoscopic image, and the use of The two-dimensional display device displays three-dimensional images.
  • Some embodiments of the present disclosure provide a rotating stereoscopic display device, including a base, a drive assembly disposed on the base, and a display panel, the display panel can be rotated under the driving of the drive assembly, and the display panel includes A plurality of display areas, the plurality of display areas include at least one first display area, at least one second display area and at least one third display area, the first display area, the second display area and the first display area The pixel density in the three display areas decreases sequentially, and at least one of the second display area and the third display area is disposed between the first display area and the edge of the display panel.
  • At least one edge of the second display area coincides with an edge of the display panel.
  • the display panel includes a vertex area, the vertex area is provided with the third display area, and at least two edges of the third display area located in the vertex area coincide with edges of the display panel .
  • the display panel includes a first axis about which the display panel is rotatable, and the first display area, the second display area and the third display area are about the The first axis is symmetrically arranged.
  • the display panel further includes a second axis perpendicular to the first axis, and the first display area, the second display and the third display area are symmetrical about the second axis set up.
  • the first display area and the first axis do not overlap, and the second display area and the third display area are disposed between the first display area and the first axis at least one of the display areas.
  • the third display area includes a target third display area, the target third display area is located between two sets of the first display areas arranged symmetrically, and the target third display area is connected to the target third display area.
  • the first axes overlap, and a second display area is disposed between the third display area and the edge of the display panel along the direction of the first axis.
  • the first display area includes a first sub-area and a second sub-area
  • the pixel density of the first sub-area is greater than the pixel density of the second sub-area
  • the second sub-area is located in At the vertex of the first display area, at least two edges of the second sub-area coincide with the edges of the first display area, the second sub-area is adjacent to the second display area, and all The second sub-region is separated from the third display region.
  • an area ratio of the first display area, the second display area, and the third display area is 30% to 35%: 45% to 55%: 10% to 20%.
  • the pixel density ratio of the first display area, the second display area and the third display area is 1:0.4 to 0.7:0.1 to 0.3.
  • Some embodiments of the present disclosure provide a display control method, which is applied to the rotary stereoscopic display device provided by some aspects of the present disclosure, and the method includes:
  • the pixel unit in the neighborhood of the target area is controlled to display the target pixel.
  • FIG. 1 is a structural diagram of a rotating stereoscopic display device in some embodiments of the present disclosure
  • FIG. 2 is a structural diagram of a rotating stereoscopic display device in some embodiments of the present disclosure
  • FIG. 3 is a schematic working diagram of a rotating stereoscopic display device in some embodiments of the present disclosure
  • FIG. 4 is a schematic diagram of a partition of a display panel in some embodiments of the present disclosure.
  • FIG. 5 is a schematic diagram of another partition of a display panel in some embodiments of the present disclosure.
  • FIG. 6 is a flowchart of a display control method in some embodiments of the present disclosure.
  • FIG. 7 is another flowchart of a display control method in some embodiments of the present disclosure.
  • Some embodiments of the present disclosure provide a rotating stereoscopic display device.
  • the rotating stereoscopic display device includes a rotatable display panel.
  • the display panel is a miniature diode (Mini LED) display panel, and each Mini LED forms one pixel of the display panel.
  • rotating the stereoscopic display device refers to using the display panel to display a two-dimensional image.
  • the display panel is driven to rotate, due to the persistence of vision effect of the human eye, when the display panel rotates fast enough, the The image will remain in the original position in the observation effect of the human eye, and the image observed by the human eye forms a three-dimensional image.
  • Each rotation of the display panel is equivalent to refreshing one frame of image. Since the image presents a three-dimensional effect, in this embodiment, each frame of image is called a volume frame, and the pixels in each two-dimensional image are scanned during the rotation process. The area forms a voxel.
  • the rotating stereoscopic display device includes a base 101, a driving device (which may be a driving motor 102 in this embodiment), a display panel 103, and an FPGA backplane (Field Programmable Gate Array, field programmable gate array).
  • Programmable logic gate array 104, FPGA main board 105, AP (Application Processor, application processor) module 106 and power supply module 107.
  • the base 101 is used as a counterweight and support for the rotating stereoscopic display device, and the driving motor 102 is used to drive the display panel to rotate.
  • the FPGA base plate 104 is used to carry the FPGA main board 105, and the FPGA main board 105 is used to receive and store the model data to be displayed.
  • the AP module 106 is mainly used to realize data interaction, so as to receive and send external data and data to be displayed.
  • the power supply module 107 may be a wired power supply module or a wireless power supply module.
  • it may include a wirelessly powered transmitter 1071 and a receiver 1072 to provide power for the rotating stereoscopic display device.
  • the display panel 103 , the FPGA backplane 104 , the FPGA mainboard 105 , the AP module 106 and the receiving end 1072 in the power supply module 107 all constitute a rotatable part, and can rotate under the driving of the driving motor 102 , the base 101 And the transmitting end 1071 of the power supply module 107 is fixed.
  • the transmitter 1071 and the receiver 1072 cooperate to supply power to the rotating stereoscopic display device through wireless power supply.
  • the AP module 106 receives the data to be transmitted, it sends it to the FPGA motherboard 105 , and further sent to the display panel through the FPGA main board 105 to realize the display of the image
  • the signal between the AP module 106, the FPGA main board 105 and the display panel 103 can be based on SPI (Serial Peripheral Interface, serial peripheral interface), IIC ( Inter-Integrated Circuit, integrated circuit bus) and other different protocols or interfaces to realize data transmission.
  • SPI Serial Peripheral Interface, serial peripheral interface
  • IIC Inter-Integrated Circuit, integrated circuit bus
  • the specific structure of the rotating stereoscopic display device is not limited to this, and can be adjusted or modified according to actual needs.
  • the display panel includes multiple display areas, and the display area in this embodiment may be the effective display area (AA area) of the display panel divided according to certain rules Multiple virtual regions are formed.
  • AA area effective display area
  • the plurality of display areas include at least one first display area 401 , at least one second display area 402 and at least one third display area 403 , the pixel density in the first display area 401 , the second display area 402 and the third display area 403 decreasing in turn.
  • the display panel is divided into a plurality of display areas, and the pixel densities of the display areas are not equal.
  • the display panel is a Mini LED display panel, it can be specifically controlled to be in different display areas. The number of Mini LEDs is not equal.
  • At least one of the second display area 402 and the third display area 403 is disposed between the first display area 401 and the edge of the display panel. It can be understood that the first display area 401 with higher pixel density is not distributed on the display panel. The edge area of the display panel has relatively little influence on the display effect. Therefore, the display areas adjacent to the edge of the display panel are the second display area 402 and/or the third display area 403 with relatively low pixel density. It is understood that the display area distributed in the edge area of the display panel is one or both of the second display area 402 and the third display area 403 , and the first display area 401 is not distributed in the edge area of the display panel 103 .
  • the number of pixel units can be reduced, thereby helping to save power. Further, due to the decrease in pixel density, the number of required wirings is also reduced, thereby reducing wiring pressure, which helps to improve the reliability of the display panel.
  • At least two edges of the third display area located in the vertex area coincide with the edges of the display panel, in other words, the display panel includes the vertex area, and the vertex area is provided with the third display area 403 .
  • the display panel when the display panel is rectangular, the display panel includes four vertices.
  • two edges of the third display area 403 are respectively located at the display panel The two edges on both sides of the vertex overlap, that is, the display area adjacent to the vertex is the third display area 403 whose pixel density is lower than that of other areas.
  • the space formed by the rotation of the display panel is called the display space, wherein the display area near the vertex actually corresponds to the annular area at the edge of the display space, and the annular area includes the probability of valid display content Therefore, this area can be set as the third display area 403 with lower pixel density.
  • the user when the user observes the image displayed by the rotating stereoscopic display device, the user pays more attention to the central part of the display control area.
  • At least one edge of the second display area 402 is coincident with the edge of the display panel.
  • the display panel includes an edge area, and at least part of the second display area 402 is arranged along the edge area. In this way, the second display area At least one edge of 402 is coincident with the edge of the display panel.
  • the edge area of the display panel forms the outer surface of the display space. Exemplarily, when the display panel is a rectangular display panel, the edge area of the display panel corresponds to the upper and lower surfaces and the side surfaces of the cylindrical display space. Since the content to be displayed is mainly distributed in the central part of the display space, in this embodiment, the display area along the edge area is controlled to be the second display area 402 to reduce the pixel distribution density in the edge area of the display panel.
  • the display panel includes a first axis 410 around which the display panel is rotatable.
  • the display panel needs to rotate at high speed during the working process.
  • the rotation speed of the display panel in order to meet the response time of the visual persistence effect of the human eye, it is necessary to control the rotation speed of the display panel to be no less than 20 cycles per second. Stability of rotation, generally speaking, the display panel needs to be rotated around the axis of symmetry of the display panel.
  • the first axis 410 may be a symmetry axis of the display panel, and the display panel can rotate around the first axis 410 .
  • the first display area 401, the second display area and the third display area 403 are symmetrically arranged with respect to the first axis 410, so that the corresponding ranges of the first display area 401, the second display area 402 and the third display area 403 in the display space are Independent of each other, that is, during the rotation of the display panel, the first display area 401 and the second display area 402 will not rotate to the same position, thereby helping to improve the uniformity of the display effect.
  • the display panel further includes a second axis 420 that is perpendicular to the first axis 410.
  • the first axis 410 and the second axis 420 can be understood as the display panels being perpendicular to each other. two central axes.
  • the first display area 401 , the second display area and the third display area 403 are arranged symmetrically about the second axis 420 , and by controlling the symmetrical distribution of each display area about the second axis 420 , the consistency and uniformity of the display effect can be improved.
  • the first display area 401 and the first axis 410 do not overlap, and at least one of the second display area 402 and the third display area 403 is disposed between the first display area 401 and the first axis 410 kind. It can be understood that the first display area 401 with higher pixel density and the first axis 410 do not overlap, and the display areas overlapping with the first axis 410 are the second display area 402 and the third display area with relatively lower pixel density District 403.
  • the rotation angles of each pixel unit are the same.
  • the length that the pixel unit turns is smaller, so that if the distribution density of the pixel units in the display panel is the same, the further away from the axis, the smaller the voxel distribution density, and the smaller the distance from the axis, the smaller the voxel distribution density.
  • the density of the pixel units in the area near the first axis 410 can be controlled to decrease, so that the display When the panel is in operation, the voxel density of the region near the first axis 410 is reduced, which helps to balance the uniformity of brightness between this region and other regions, thereby helping to improve the display effect.
  • the third display area 403 includes a target third display area 403A, the target third display area 403A is located between the two sets of first display areas 401 arranged symmetrically, and the target third display area 403 is connected to the first axis 410 Overlapping, along the direction of the first axis 410, a second display area 402 is disposed between the target third display area 403A and the edge of the display panel.
  • the target third display area 403A is located in the most central area of the display panel. It should be understood that the most central area is usually surrounded by the displayed three-dimensional image, and the displayed effective content is relatively small. In addition, Considering that the most central area is the area that the user usually looks at most directly when observing the display panel, if the brightness is too high, it may cause a significant difference from the surrounding area and affect the display effect. Therefore, in some embodiments, Setting the target third display area 403A in this area helps to reduce the display brightness of this area and improve the display effect.
  • the first display area 401 includes a first sub-area 4011 and a second sub-area 4012, the pixel density of the first sub-area 4011 is greater than that of the second sub-area 4012, and the second sub-area 4012 is located in part of the first sub-area 4012.
  • a sub-area 4011 is located at one side of the edge of the display panel, and in some embodiments, the second sub-area 4012 is located at an area of the first display area 401 close to the apex of the display panel.
  • the second sub-area 4012 is adjacent to the second display area 402, and the second sub-area 4012 is separated from the third display area 403, so the second sub-area 4012 can be understood as the first sub-area 4011 and the second display area 402
  • the display panel can be understood as a transition according to the distribution mode of the first sub-area 4011, the second sub-area 4012 and the second sub-area 4012, which helps to improve the brightness transition in the display space during the display process. Uniformity helps to improve the display effect.
  • the area ratio of the first display area 401 , the second display area 402 and the third display area 403 is 30% to 35%: 45% to 55%: 10% to 20%.
  • the area of the first sub-area 4011 accounts for about 25%
  • the area of the second sub-area 4012 accounts for about 25%.
  • the ratio is about 8.3%
  • the area ratio of the second display area 402 is about 50%
  • the area ratio of the third display area 403 is about 16.7%.
  • the pixel density ratio of the first display area 401 , the second display area 402 and the third display area 403 is 1:0.4 to 0.7:0.1 to 0.3.
  • the pixel density ratio of the first sub-area 4011 and the second sub-area 4012 is 1:0.75.
  • the pixel density ratio of a sub-area 4011 and the second display area 402 is 1:0.5, that is, the pixel density of the second display area 402 is half that of the first sub-area 4011.
  • the first sub-area 4011 and the The pixel density ratio of the two display areas 402 is 1:0.25.
  • a display panel is used as an example of a Mini LED panel.
  • the Mini LED panel is rectangular and includes 48 partitions in total with six rows and eight columns.
  • the display area of the Mth row and the Nth column is denoted as display area (M, N), where M is a value of 1
  • M is a value of 1
  • N is an integer ranging from 1 to 8
  • the first axis 410 or the rotation axis of the display panel is its longitudinal center axis.
  • the first display area 401 includes display area (2, 2), display area (2, 3), display area (2, 6), display area (2, 7), display area (3, 2), display area (3) , 3), display area (3, 6), display area (3, 7), display area (3, 2, display area (4, 3), display area (4, 6), display area (4, 7) , display area (5, 2), display area (5, 3), display area (5, 6), display area (5, 7), among which, display area (2, 2), display area (2, 7) , the display area (5, 2), and the display area (5, 7) are the second sub-areas 4012 , and the remaining first display areas 401 are the first sub-areas 4011 .
  • the second display area 402 includes display area (1, 2), display area (1, 3), display area (1, 4), display area (1, 5), display area (1, 6), display area (1) , 7), display area (2, 1), display area (2, 4), display area (2, 5), display area (2, 8), display area (3, 1), display area (3, 8) ), display area (4, 1), display area (6, 8), display area (5, 1), display area (5, 4), display area (5, 5), display area (5, 8), Display area (6, 2), display area (6, 3), display area (6, 4), display area (6, 5), display area (6, 6), display area (6, 7).
  • the third display area 403 includes display area (1, 1), display area (1, 8), display area (6, 1), display area (6, 8), display area (3, 4), display area (3) , 5), display area (4, 4), display area (4, 5), as shown in FIG. 4 and FIG. 5 , wherein, in the third display area 403, display area (3, 4), display area (3 , 5), display area (4, 4), and display area (4, 5) are the target third display area 403A.
  • each display area corresponding to a display panel of the same size includes 16*12 Mini LEDs as an example for illustration.
  • the first sub-area 4011 also includes 16*12 Mini LEDs.
  • the display panel in this embodiment includes a total of 5568 Mini LEDs, while the display panel in the related art includes a total of 9216 Mini LEDs.
  • the number of Mini LEDs in the display panel in this embodiment is reduced by 3648 display panels. As a rough estimate, the power consumption of each Mini LED is equal. This embodiment reduces the power consumption of the display panel by about 39.4%.
  • the size of the LED Driver (diode drive circuit) corresponding to each Mini LED and its corresponding walk-out is about 20mm*15mm.
  • the line width of the traces and the size of the traces are different.
  • the sum of the distances between the lines is about 0.2 mm, that is to say, the wiring density is relatively large, and the wiring pressure is relatively large.
  • the density of Mini LEDs in some display areas is reduced, which also helps to reduce the wiring pressure. Improve the trace spacing, thereby helping to improve the reliability of the display panel.
  • the display panel includes a pixel unit and a driving module.
  • the pixel unit may be a Mini LED
  • the driving module may be an LED driving module LED.
  • Driver wherein, each display area is driven by an LED Driver, and during implementation, each display area and the corresponding LED Driver can be connected through an SPI interface to obtain a driving signal, thereby realizing image display.
  • Some embodiments of the present disclosure provide a display control method, which is applied to the rotary stereoscopic display device provided by some aspects of the present disclosure.
  • the method includes:
  • Step 601 According to the three-dimensional image to be displayed, determine the two-dimensional image displayed by the display panel at each rotational phase;
  • Step 602 In the case where a pixel unit exists in the target area of the display panel corresponding to the target pixel in the two-dimensional image, control the corresponding pixel unit to display the target pixel;
  • Step 603 in the case that there is no pixel unit in the target area of the display panel corresponding to the pixel in the two-dimensional image, control the pixel unit in the neighborhood of the target area to display the target pixel.
  • a model is constructed first, specifically, a three-dimensional model of an image to be displayed is constructed.
  • the three-dimensional model can be realized by using three-dimensional modeling software such as 3DMAX, Pro/E, and SolidWorks.
  • pan and zoom the model specifically, pan and zoom the established three-dimensional model so that it is completely accommodated in the display space and has a proper scale.
  • the display space refers to the space formed by the rotation of the display panel.
  • the display panel is a rectangle, and the display panel is rotated around one of its symmetry axes, and the formed display space is cylindrical.
  • the display panel is an isosceles triangle. , and rotate around its symmetry axis, the formed display space is a cone.
  • each volume frame has 180 phases, corresponding to 180 cross-sectional images; if an interval of 3° is defined as a phase, then each volume frame has 120 phases, corresponding to 120 Cross-sectional graphics.
  • the specific number of phases can be increased or decreased accordingly, and the rotation speed of the display panel can also be adaptively adjusted. Further, the refresh frequency of the display panel can be determined according to the rotation speed of the display panel and the number of phases.
  • Extract cross-section data for each phase After the three-dimensional image to be displayed is accommodated in the display space, the two-dimensional image displayed by the display panel at each phase can be determined according to the cross section of each phase of the display panel intersecting the three-dimensional image, and these two-dimensional images are arranged according to The phases are arranged in sequence to form the image sequence to be displayed.
  • Each rotation of the display panel is equivalent to refreshing one frame of image. Since the image presents a three-dimensional effect, in this embodiment, each frame of image is called a volume frame, and the pixels in each two-dimensional image are scanned during the rotation process. The area forms a voxel. Only this, according to the determined display time of each two-dimensional image and each two-dimensional image, the three-dimensional image to be displayed can be voxelized.
  • the distribution of voxels can also be processed.
  • the voxels can be homogenized.
  • the octree point cloud compression algorithm can be used to homogenize the voxels, so that the voxels can be homogenized. Pixels are more evenly distributed throughout the display space.
  • a cube space bounding box is established as the root node, and the smallest cube bounding box is divided into the leaf nodes layer by level, and the same number of voxels are reserved in the bounding box of each leaf node, so that the overall distribution of voxels is strictly uniform. Voxel homogenized image.
  • the area corresponding to the pixels in the two-dimensional image may have corresponding pixel units, or may not There are corresponding pixel units.
  • a corresponding pixel unit in the target area corresponding to the target pixel in the two-dimensional image there is a corresponding pixel unit in the target area corresponding to the target pixel in the two-dimensional image, and the pixel unit can be directly controlled to display the target pixel.
  • the pixel unit near the target area is used to display the target pixel.
  • the distance and orientation between the pixel unit near the target area and the target area adjust the display effect of the pixel unit near the target area; in some embodiments, the pixel unit that is close to the target area and does not need to display content can also be directly used. Displaying this target pixel helps reduce computation.
  • output the image sequence specifically, output the matched image sequence, and control the display panel to rotate to different phases to display the corresponding images.

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Abstract

一种旋转立体显示装置和显示控制方法。旋转立体显示装置包括底座（101）、设置于底座（101）上的驱动组件（102）以及显示面板（103），显示面板（103）能够在驱动组件（102）的驱动下旋转，显示面板（103）包括多个显示区，多个显示区包括至少一个第一显示区（401）、至少一个第二显示区（402）和至少一个第三显示区（403），第一显示区（401）、第二显示区（402）和第三显示区（403）中的像素密度依次降低，第一显示区（401）与显示面板（103）的边缘之间设置有第二显示区（402）和第三显示区（403）中的至少一种。能够降低显示装置的制作成本和能耗，有利于节约资源。

Description

一种旋转立体显示装置和显示控制方法 技术领域
本公开涉及显示技术领域，尤其涉及一种旋转立体显示装置和显示控制方法。
背景技术
旋转立体显示装置指的是控制显示面板旋转，并在显示面板旋转至特定的相位时，控制显示面板显示相应的图像，这样，由于视觉残留，能够使得用户观察到的图像为立体图像，实现利用二维显示装置显示三维图像。
发明内容
本公开一些实施例提供了一种旋转立体显示装置，包括底座、设置于所述底座上的驱动组件以及显示面板，所述显示面板能够在所述驱动组件的驱动下旋转，所述显示面板包括多个显示区，所述多个显示区包括至少一个第一显示区、至少一个第二显示区和至少一个第三显示区，所述第一显示区、所述第二显示区和所述第三显示区中的像素密度依次降低，所述第一显示区与所述显示面板的边缘之间设置有所述第二显示区和所述第三显示区中的至少一种。
在一些实施方式中，所述第二显示区的至少一条边缘与所述显示面板的边缘重合。
在一些实施方式中，所述显示面板包括顶点区域，所述顶点区域设置有所述第三显示区，位于所述顶点区域的第三显示区的至少两条边缘与所述显示面板的边缘重合。
在一些实施方式中，所述显示面板包括第一轴线，所述显示面板可绕所述第一轴线旋转，所述第一显示区、所述第二显示和所述第三显示区关于所述第一轴线对称设置。
在一些实施方式中，所述显示面板还包括与所述第一轴线垂直的第二轴线，所述第一显示区、所述第二显示和所述第三显示区关于所述第二轴线对 称设置。
在一些实施方式中，所述第一显示区与所述第一轴线不交叠，且所述第一显示区和所述第一轴线之间设置有所述第二显示区和所述第三显示区中的至少一种。
在一些实施方式中，所述第三显示区包括目标第三显示区，所述目标第三显示区位于对称设置的两组所述第一显示区之间，所述目标第三显示区与所述第一轴线交叠，沿着所述第一轴线的方向所述第三显示区和所述显示面板的边缘之间设置有第二显示区。
在一些实施方式中，所述第一显示区包括第一子区域和第二子区域，所述第一子区域的像素密度大于所述第二子区域的像素密度，所述第二子区域位于所述第一显示区的顶点处，所述第二子区域的至少两条边缘与所述第一显示区的边缘重合，所述第二子区域与所述第二显示区相邻，且所述第二子区域与所述第三显示区相分离。
在一些实施方式中，所述第一显示区、所述第二显示区和所述第三显示区的面积比为30％至35％：45％至55％：10％至20％。
在一些实施方式中，所述第一显示区、所述第二显示区和所述第三显示区的像素密度比例为1:0.4至0.7:0.1至0.3。
本公开一些实施例提供了一种显示控制方法，应用于本公开一些方面提供的旋转立体显示装置，所述方法包括：
根据待显示的三维图像，确定所述显示面板在每一旋转相位显示的二维图像；
在所述显示面板与所述二维图像中的目标像素相对应的目标区域存在像素单元的情况下，控制相应的像素单元显示所述目标像素；
在所述显示面板与所述二维图像中的像素相对应的目标区域不存在像素单元的情况下，控制所述目标区域的邻域中的像素单元显示所述目标像素。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅 是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获取其他的附图。
图1是本公开一些实施例中旋转立体显示装置的结构图；
图2是本公开一些实施例中旋转立体显示装置的架构图；
图3是本公开一些实施例中旋转立体显示装置工作示意图；
图4是本公开一些实施例中显示面板的分区示意图；
图5是本公开一些实施例中显示面板的又一分区示意图；
图6是本公开一些实施例中显示控制方法的流程图；
图7是本公开一些实施例中显示控制方法的又一流程图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获取的所有其他实施例，都属于本公开保护的范围。
本公开一些实施例提供了一种旋转立体显示装置。
在一些实施例中，旋转立体显示装置包括可旋转的显示面板，在一些实施方式中，显示面板为微型二极管(Mini LED)显示面板，每一个Mini LED形成显示面板的一个像素。
在一些实施例中，旋转立体显示装置指的是利用显示面板显示二维图像，当驱动显示面板旋转时，由于人眼存在视觉暂留效应，当显示面板旋转的足够快时，显示面板显示的图像在人眼的观察效果中会暂留于原位置，人眼观察到的图像形成一三维图像。
显示面板每旋转一周，相当于刷新一帧图像，由于该图像呈现三维立体效果，本实施例中将每一帧图像称作一个体帧，每一二维图像中的像素在旋转过程中扫过的区域形成一个体素。
如图1至图3所示，在一些实施例中，旋转立体显示装置包括底座101、驱动装置(本实施例中可以是驱动电机102)、显示面板103、FPGA底板(Field Programmable Gate Array，现场可编程逻辑门阵列)104、FPGA主板105、 AP(Application Processor，应用处理器)模块106和供电模组107。
底座101用于作为旋转立体显示装置的配重和支撑，驱动电机102用于带动显示面板旋转。FPGA底板104用于承载FPGA主板105，FPGA主板105用于为待显示模型数据的接收存储，AP模块106具体可包括蓝牙子模块、无线网子模块、近距离数据传输子模块中的一项或多项，AP模块106主要用于实现数据的交互，以接收及发送外部数据和待显示的数据等。
供电模组107可以是有线供电模组，也可以是无线供电模组，例如，可以包括无线供电的发射端1071和接收端1072以实现为旋转立体显示装置提供电能。
在一些实施例中，显示面板103、FPGA底板104、FPGA主板105、AP模块106和供电模组107中的接收端1072均构成可旋转部分，并能够在驱动电机102的驱动下旋转，底座101和供电模组107的发射端1071则是固定不动的。
如图3所示，工作过程中，发射端1071和接收端1072相配合，并通过无线供电的方式为旋转立体显示装供电置，AP模块106接收到需要传输的数据之后，发送至FPGA主板105，并进一步通过FPGA主板105发送至显示面板，以实现图像的显示，AP模块106、FPGA主板105和显示面板103之间的信号可以基于SPI(Serial Peripheral Interface,串行外设接口)、IIC(Inter-Integrated Circuit，集成电路总线)等不同的协议或接口实现数据传输。
应当理解的是，旋转立体显示装置的具体结构并不局限于此，可以根据实际需要作出调整或更改。
如图4和图5所示，所示，在一些实施例中，显示面板包括多个显示区，本实施例中的显示区可以是将显示面板的有效显示区(AA区)按照一定规则划分形成的多个虚拟的区域。
多个显示区包括至少一个第一显示区401、至少一个第二显示区402和至少一个第三显示区403，第一显示区401、第二显示区402和第三显示区403中的像素密度依次降低。
在一些实施例的技术方案中，将显示面板划分为多个显示区，且显示区的像素密度不相等，在显示面板为Mini LED显示面板的情况下，具体可以是 控制为不同显示区中的Mini LED数量不相等。
第一显示区401与显示面板的边缘之间设置有第二显示区402和第三显示区403中的至少一种，可以理解为，像素密度较高的第一显示区401未分布在显示面板的边缘区域，显示面板的边缘对于显示效果的影响相对较小，因此，邻接显示面板的边缘的显示区均是像素密度相对较低的第二显示区402和/或第三显示区403，可以理解为，分布于显示面板的边缘区域的显示区为第二显示区402和第三显示区403中的一者或两者，而第一显示区401未分布于显示面板103的边缘区域。
通过控制不同显示区中像素密度不相等，能够减少像素单元的数量，从而有助于节约电能，进一步的，由于像素密度下降，所需的走线的数量也随之下降，从而降低了走线压力，有助于提高显示面板的可靠性。
在一些实施方式中，位于顶点区域的第三显示区的至少两条边缘与显示面板的边缘重合，换句话说，显示面板包括顶点区域，顶点区域设置有第三显示区403。
示例性的，如图4和图5所示，在显示面板为矩形的情况下，该显示面板包括四个顶点，在一些实施例中，第三显示区403的两个边缘分别与显示面板位于顶点两侧的两条边缘重叠，也就是说，邻接顶点的显示区为像素密度小于其他区域的像素密度的第三显示区403。
在一些实施例中，将显示面板旋转所形成的空间称作显示空间，其中，顶点附近的显示区域实际上对应显示空间边缘的圆环形区域，该圆环形区域中包括有效显示内容的概率较小，因此，可以将该区域设置为像素密度较小的第三显示区403，同时，用户在观察旋转立体显示装置显示的图像时，更着重关注显示显示控件的中央部分区域。
在一些实施方式中，第二显示区402的至少一条边缘与显示面板的边缘重合，可以理解为，显示面板包括边缘区域，至少部分第二显示区402沿边缘区域设置，这样，第二显示区402的至少一条边缘与显示面板的边缘是重合的。显示面板的边缘区域形成显示空间的外部表面，示例性的，在显示面板为矩形显示面板时，显示面板的边缘区域对应圆柱形显示空间的上下表面和侧面。由于所需显示的内容主要分布于显示空间的中央部分，本实施例中 控制沿边缘区域的显示区为第二显示区402，以减少显示面板的边缘区域的像素分布密度。
如图4所示，在一些实施方式中，显示面板包括第一轴线410，显示面板可绕第一轴线410旋转。
应当理解的是，显示面板在工作过程中需要高速旋转，一般来说，为了满足人眼存在视觉暂留效应的响应时间，需要控制显示面板的旋转速度不小于每秒20周，为了确保显示面板旋转的平稳性，一般来说，显示面板需要绕显示面板的对称轴旋转。
本实施例中，第一轴线410可以的是显示面板的一条对称轴，且显示面板能够绕该第一轴线410旋转。第一显示区401、第二显示和第三显示区403关于第一轴线410对称设置，这样，第一显示区401、第二显示区402和第三显示区403在显示空间中对应的范围是各自独立的，即显示面板旋转过程中，第一显示区401和第二显示区402不会旋转至相同的位置，从而有助于提高显示效果的均一性。
在一些实施方式中，显示面板还包括与第一轴线410垂直的第二轴线420，在显示面板为矩形显示面板的情况下，第一轴线410和第二轴线420可以理解为显示面板相互垂直的两条中轴线。第一显示区401、第二显示和第三显示区403关于第二轴线420对称设置，通过控制各显示区关于第二轴线420对称分布，能够提高显示效果的一致性和均一性。
在一些实施方式中，第一显示区401与第一轴线410不交叠，且第一显示区401和第一轴线410之间设置有第二显示区402和第三显示区403中的至少一种。可以理解为，像素密度较高的第一显示区401域第一轴线410不交叠，与第一轴线410交叠的显示区均为像素密度相对较低的第二显示区402和第三显示区403。
应当理解的是，显示面板旋转过程中，相同时间内，各像素单元旋转过的角度是相同的，距离旋转的轴线越远的像素单元转过的长度就越大，距离旋转的轴线越近的像素单元转过的长度就越小，这样，如果显示面板中像素单元的分布密度相同，那么与轴线越远的地方，体素分布密度越小，与轴线之间距离越小的位置，体素分布密度也就越大。对于第一轴线410附近的区 域，如果体素的密度过高，则会导致局部亮度过高，可能对显示效果造成影响。
通过设置第一轴线410与第二显示区402和第三显示区403交叠，与第一显示区401不交叠，能够控制第一轴线410附近的区域的像素单元的密度降低，从而使得显示面板工作时，第一轴线410附近的区域的体素密度降低，有助于平衡该区域与其他区域之间的亮度的均一性，从而有助于提高显示效果。
在一些实施方式中，第三显示区403包括目标第三显示区403A，目标第三显示区403A位于对称设置的两组第一显示区401之间，目标第三显示区403与第一轴线410交叠，沿着第一轴线410的方向,目标第三显示区403A和显示面板的边缘之间设置有第二显示区402。
可以理解为，该目标第三显示区403A位于显示面板的最中央的区域，应当理解的是，该最中央的区域通常被显示的三维图像所包围，所显示的有效内容相对较少，此外，考虑到该最中央的区域是用户观察显示面板时，通常情况下最直接注视的区域，如果亮度过高，可能会导致与周围区域存在显著差异，影响显示效果，因此，在一些实施例中，在该区域设置目标第三显示区403A，有助于降低该区域的显示亮度，提高显示效果。
在一些实施方式中，第一显示区401包括第一子区域4011和第二子区域4012，第一子区域4011的像素密度大于第二子区域4012的像素密度，第二子区域4012位于部分第一子区域4011靠近显示面板的边缘的一侧，在一些实施例中，第二子区域4012位于第一显示区401靠近显示面板的顶点的区域。
第二子区域4012与第二显示区402相邻，且第二子区域4012与第三显示区403相分离，这样，第二子区域4012可以理解为第一子区域4011和第二显示区402之间的过渡区域，这样，显示面板可以理解为按照第一子区域4011、第二子区域4012和第二子区域4012的分布方式过渡，有助于提高显示过程中，显示空间中亮度过渡的均匀性，有助于提高显示效果。
在一些实施方式中，第一显示区401、第二显示区402和第三显示区403的面积比为30％至35％：45％至55％：10％至20％。在一些实施例中，在第一显示区401包括第一子区域4011和第二子区域4012的情况下，第一子区 域4011的面积占比约为25％，第二子区域4012的面积占比约为8.3％，第二显示区402的面积占比约为50％，第三显示区403的面积占比约为16.7％。
在一些实施方式中，第一显示区401、第二显示区402和第三显示区403的像素密度比例为1:0.4至0.7:0.1至0.3。在其中一些实施例中，在第一显示区401包括第一子区域4011和第二子区域4012的情况下，第一子区域4011和第二子区域4012的像素密度比为1:0.75，第一子区域4011和第二显示区402的像素密度比为1:0.5，即第二显示区402的像素密度为第一子区域4011的二分之一，进一步的，第一子区域4011和第二显示区402的像素密度比为1:0.25。
接下来以显示面板为某一Mini LED面板做示例性说明。
该Mini LED面板呈矩形，包括六行八列共计48个分区，本实施例中，将第M行，第N列的显示区记作显示区(M，N)，其中，M为取值1至6的整数，N为取值1至8的整数，该显示面板的第一轴线410或称旋转轴线为其纵向中轴线。
如图4和图5所示，图5中仅标注出了部分显示区的编号，未标注的显示区的编号可以根据其位置确定。
第一显示区401包括显示区(2，2)、显示区(2，3)、显示区(2，6)、显示区(2，7)、显示区(3，2)、显示区(3，3)、显示区(3，6)、显示区(3，7)、显示区(3，2、显示区(4，3)、显示区(4，6)、显示区(4，7)、显示区(5，2)、显示区(5，3)、显示区(5，6)、显示区(5，7)，其中，显示区(2，2)、显示区(2，7)、显示区(5，2)、显示区(5，7)为第二子区域4012，其余的第一显示区401为第一子区域4011。
第二显示区402包括显示区(1，2)、显示区(1，3)、显示区(1，4)、显示区(1，5)、显示区(1，6)、显示区(1，7)、显示区(2，1)、显示区(2，4)、显示区(2，5)、显示区(2，8)、显示区(3，1)、显示区(3，8)、显示区(4，1)、显示区(6，8)、显示区(5，1)、显示区(5，4)、显示区(5，5)、显示区(5，8)、显示区(6，2)、显示区(6，3)、显示区(6，4)、显示区(6，5)、显示区(6，6)、显示区(6，7)。
第三显示区403包括显示区(1，1)、显示区(1，8)、显示区(6，1)、 显示区(6，8)、显示区(3，4)、显示区(3，5)、显示区(4，4)、显示区(4，5)，如图4和图5所示，其中，第三显示区403中的显示区(3，4)、显示区(3，5)、显示区(4，4)、显示区(4，5)为目标第三显示区403A。
以相关技术中，同样尺寸的显示面板对应的每一显示区范围包括16*12颗Mini LED为例说明。本实施例中的显示面板中，第一子区域4011中同样包括16*12颗Mini LED，这样，本实施例中的显示面板共计包括5568颗Mini LED，而相关技术中的显示面板共计包括9216颗Mini LED，本实施例的显示面板减少了3648颗显示面板，以各Mini LED的功耗均相等做初略估计，本实施例减少了显示面板约39.4％的能耗。
每一Mini LED对应的LED Driver(二极管驱动电路)及其对应的走出占用的尺寸约为20毫米*15毫米，当每一显示区设置16*12颗Mini LED时，走线的线宽与走线之间的间距之和约为0.2毫米，也就是说，走线密度相对较大，布线压力较大，本实施例中，减少了部分显示区中Mini LED的密度，也有助于降低布线压力，提高走线间距，从而有助于提高显示面板的可靠性。
请继续参阅图5，本实施例中，显示面板包括像素单元和驱动模块，示例性的，在显示面板为Mini LED面板的情况下，像素单元可以是Mini LED，驱动模块可以是LED驱动模块LED Driver，其中，每一个显示区通过一个LED Driver驱动，实施时，每一显示区与相应的LED Driver可以通过SPI接口等相连以获取驱动信号，进而实现图像的显示。
本公开一些实施例提供了一种显示控制方法，应用于本公开一些方面提供的旋转立体显示装置。
如图6所示，所述方法包括：
步骤601：根据待显示的三维图像，确定所述显示面板在每一旋转相位显示的二维图像；
步骤602：在所述显示面板与所述二维图像中的目标像素相对应的目标区域存在像素单元的情况下，控制相应的像素单元显示所述目标像素；
步骤603：在所述显示面板与所述二维图像中的像素相对应的目标区域不存在像素单元的情况下，控制所述目标区域的邻域中的像素单元显示所述目标像素。
如图7所示，本实施例的技术方案中，首先构建模型，具体的，建立待显示的图像的三维模型，该三维模型可以利用3DMAX、Pro/E、SolidWorks等三维建模软件实现。
接下来，进行模型平移和缩放，具体的，对所建立的三维模型进行平移和缩放，使其完全容纳于显示空间内且比例恰当。
显示空间指的是显示面板旋转所形成的空间，示例性的，显示面板为矩形，显示面板绕其一条对称轴旋转，则所形成的显示空间为圆柱形，又如，显示面板为等腰三角形，且绕其对称轴旋转，则所形成的显示空间为锥形。
显示面板在不同位置显示的内容是不同的，因此，需要定义多个相位，显示面板在不同相位显示不同的内容。示例性的，每间隔2°定义为一个相位，则每一体帧具有180个相位，分别对应180幅截面图形；如果一间隔3°定义为一个相位，则每一体帧具有120相位，分别对应120幅截面图形。
实施时，相位的具体数量可以相应的增加或减少，显示面板的旋转速度同样可以做出适应性调整，进一步的，可以根据显示面板的旋转速度和相位数量确定显示面板的刷新频率。
提取每一相位的截面数据。在将所需显示的三维图像容纳于显示空间内后，根据显示面板的每一相位与该三维图像相交的截面，能够确定显示面板在每一相位显示的二维图像，将这些二维图像按照相位顺序依次排列，就形成了所需显示的图像序列。
下一步，进行体素化和体素均匀化处理。
显示面板每旋转一周，相当于刷新一帧图像，由于该图像呈现三维立体效果，本实施例中将每一帧图像称作一个体帧，每一二维图像中的像素在旋转过程中扫过的区域形成一个体素。仅此，根据确定的各二维图像结合每一二维图像的显示时间，能够将所需显示的三维图像体素化。
在一些实施例中，还可以对体素的分布进行处理，示例性的，可以对体素做均匀化处理，例如可以通过八叉树点云压缩算法，对体素做均匀化处理，使体素在整个显示空间中分布的更加均匀。
具体的，建立立方体空间包围盒作为根节点，逐层级分割至最小立方体包围盒作为叶节点，并在每个叶节点包围盒中保留相同数量的体素，使体素 整体分布严格均匀，得到体素均匀化的图像。
接下来，进行像素单元排布匹配，由于本实施例中不同区域的像素分布密度不同，因此，在显示面板上，与二维图像中的像素对应的区域可能存在相应的像素单元，也可能不存在相应的像素单元。
在二维图像中的目标像素对应的目标区域存在相应的像素单元，可以直接控制该像素单元显示目标像素。
当二维图像中的目标像素对应的目标区域不存在相应的像素单元，为了确保该目标像素被正常显示，本实施例中，利用目标区域附近的像素单元显示该目标像素，实施时，可以根据目标区域附近的像素单元与目标区域之间的距离和方位调整目标区域附近的像素单元的显示效果；在一些实施例中，还可以直接利用与该目标区域接近，且不需要显示内容的像素单元显示该目标像素，有助于降低计算量。
最后，输出图像序列，具体的，输出匹配完成的图像序列，并控制显示面板旋转至不同相位时，显示对应的图像即可。
以上，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (11)

  1. 一种旋转立体显示装置，包括底座、设置于所述底座上的驱动组件以及显示面板，所述显示面板能够在所述驱动组件的驱动下旋转，所述显示面板包括多个显示区，所述多个显示区包括至少一个第一显示区、至少一个第二显示区和至少一个第三显示区，所述第一显示区、所述第二显示区和所述第三显示区中的像素密度依次降低，所述第一显示区与所述显示面板的边缘之间设置有所述第二显示区和所述第三显示区中的至少一种。
  2. 根据权利要求1所述的旋转立体显示装置，其中，所述第二显示区的至少一条边缘与所述显示面板的边缘重合。
  3. 根据权利要求2所述的旋转立体显示装置，其中，所述显示面板包括顶点区域，所述顶点区域设置有所述第三显示区，位于所述顶点区域的第三显示区的至少两条边缘与所述显示面板的边缘重合。
  4. 根据权利要求1所述的旋转立体显示装置，其中，所述显示面板包括第一轴线，所述显示面板可绕所述第一轴线旋转，所述第一显示区、所述第二显示和所述第三显示区关于所述第一轴线对称设置。
  5. 根据权利要求4所述的旋转立体显示装置，其中，所述显示面板还包括与所述第一轴线垂直的第二轴线，所述第一显示区、所述第二显示和所述第三显示区关于所述第二轴线对称设置。
  6. 根据权利要求4所述的旋转立体显示装置，其中，所述第一显示区与所述第一轴线不交叠，且所述第一显示区和所述第一轴线之间设置有所述第二显示区和所述第三显示区中的至少一种。
  7. 根据权利要求6所述的旋转立体显示装置，其中，所述第三显示区包括目标第三显示区，所述目标第三显示区位于对称设置的两组所述第一显示区之间，所述目标第三显示区与所述第一轴线交叠，沿着所述第一轴线的方向所述第三显示区和所述显示面板的边缘之间设置有第二显示区。
  8. 根据权利要求6所述的旋转立体显示装置，其中，所述第一显示区包括第一子区域和第二子区域，所述第一子区域的像素密度大于所述第二子区域的像素密度，所述第二子区域位于所述第一显示区的顶点处，所述第二子 区域的至少两条边缘与所述第一显示区的边缘重合，所述第二子区域与所述第二显示区相邻，且所述第二子区域与所述第三显示区相分离。
  9. 根据权利要求1至8中任一项所述的旋转立体显示装置，其中，所述第一显示区、所述第二显示区和所述第三显示区的面积比为30％至35％：45％至55％：10％至20％。
  10. 根据权利要求1至8中任一项所述的旋转立体显示装置，其中，所述第一显示区、所述第二显示区和所述第三显示区的像素密度比例为1:0.4至0.7:0.1至0.3。
  11. 一种显示控制方法，应用于权利要求1至10中任一种旋转立体显示装置，所述方法包括：
    根据待显示的三维图像，确定所述显示面板在每一旋转相位显示的二维图像；
    在所述显示面板与所述二维图像中的目标像素相对应的目标区域存在像素单元的情况下，控制相应的像素单元显示所述目标像素；
    在所述显示面板与所述二维图像中的像素相对应的目标区域不存在像素单元的情况下，控制所述目标区域的邻域中的像素单元显示所述目标像素。
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