WO2021035473A1 - 三维显示装置及虚拟现实设备 - Google Patents
三维显示装置及虚拟现实设备 Download PDFInfo
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- WO2021035473A1 WO2021035473A1 PCT/CN2019/102570 CN2019102570W WO2021035473A1 WO 2021035473 A1 WO2021035473 A1 WO 2021035473A1 CN 2019102570 W CN2019102570 W CN 2019102570W WO 2021035473 A1 WO2021035473 A1 WO 2021035473A1
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- liquid crystal
- phase modulator
- transmissive phase
- display layer
- modulation unit
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
- G02B30/52—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels the 3D volume being constructed from a stack or sequence of 2D planes, e.g. depth sampling systems
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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
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
- H04N13/315—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers the parallax barriers being time-variant
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
Definitions
- the present disclosure relates to the field of display technology, and in particular to a three-dimensional display device and virtual reality equipment.
- VR Virtual Reality
- the focal plane display is a three-dimensional (3D) display technology developed for VR.
- the embodiments of the present disclosure provide a three-dimensional display device and a virtual reality device, and propose a novel three-dimensional display structure based on focal plane display.
- the technical solution is as follows:
- At least one embodiment of the present disclosure provides a three-dimensional display device, including:
- the transmissive phase modulator is located on the light emitting side of the display layer
- the transmissive phase modulator includes a plurality of modulation units, each of which is configured to phase modulate the light received respectively, and each of the modulation units is configured to cause the screen displayed on the display layer to pass through the After the transmissive phase modulator, a continuous curved virtual image appears.
- the transmissive phase modulator includes two first electrode layers arranged opposite to each other and a first liquid crystal layer located between the two first electrode layers.
- the transmissive phase modulator further includes a first alignment film located on both sides of the first liquid crystal layer, and the initial long axis directions of the liquid crystal molecules of the first liquid crystal layer are consistent.
- At least one of the two first electrode layers of the transmissive phase modulator includes a plurality of electrode blocks distributed in an array, and each electrode block corresponds to a modulation unit.
- the three-dimensional display device further includes an optical path adjustment liquid crystal cell, and the optical path adjustment liquid crystal cell is located between the display layer and the transmissive phase modulator;
- the optical path adjustment liquid crystal cell includes two second electrode layers arranged oppositely and a second liquid crystal layer located between the two second electrode layers;
- the optical path adjustment liquid crystal cell further includes a second alignment film located on both sides of the second liquid crystal layer, and the initial long axis directions of the liquid crystal molecules of the second liquid crystal layer are consistent.
- the display layer is an OLED display layer
- the three-dimensional display device further includes a linear polarizer on the light exit side of the display layer, and the polarization direction of the light emitted by the OLED display layer after passing through the linear polarizer is consistent with the liquid crystal in the transmissive phase modulator.
- the initial long axis direction of the molecule is the same.
- the display layer is an LCD display layer
- the LCD display layer includes a display substrate and a linear polarizer on the light exit side of the display substrate.
- the polarization direction of the light emitted from the LCD display layer is the same as the initial long axis direction of the liquid crystal molecules in the transmissive phase modulator. the same.
- the display layer includes a plurality of pixels, and each of the modulation units respectively corresponds to a fixed number of pixels in the plurality of pixels.
- At least one embodiment of the present disclosure provides a virtual reality device, including:
- the virtual reality device further includes:
- the control device is configured to obtain the 3D picture to be displayed; control the display of the display layer in the three-dimensional display device based on the 3D picture to be displayed, and control each modulation unit of the transmissive phase modulator to respond to the light received by each Perform phase modulation.
- control device is configured to determine the voltage corresponding to each modulation unit of the transmissive phase modulator based on the 3D picture to be displayed;
- the voltage corresponding to each modulation unit is used to control the operation of each modulation unit of the transmissive phase modulator.
- control device is configured to determine the coordinates of the pixels of the 3D picture corresponding to each modulation unit based on the 3D picture to be displayed;
- the voltage corresponding to each modulation unit is determined based on the coordinates of the pixels of the 3D image corresponding to each modulation unit.
- FIG. 1 shows a schematic structural diagram of a three-dimensional display device provided by an embodiment of the present disclosure
- Figure 2 shows a top view of a transmissive phase modulator provided by an embodiment of the present disclosure
- Fig. 3 shows a schematic structural diagram of a transmissive phase modulator provided by an embodiment of the present disclosure
- Fig. 6 shows a schematic structural diagram of another transmissive phase modulator provided by an embodiment of the present disclosure
- FIG. 7 is a schematic diagram of modulation provided by an embodiment of the present disclosure.
- FIG. 8 shows a top view of a display layer provided by an embodiment of the present disclosure
- FIG. 9 shows a schematic structural diagram of another three-dimensional display device provided by an embodiment of the present disclosure.
- FIG. 10 shows a schematic structural diagram of an optical path adjustment liquid crystal cell provided by an embodiment of the present disclosure
- FIG. 11 shows an imaging schematic diagram of a three-dimensional display device provided by an embodiment of the present disclosure
- FIG. 12 shows a structural block diagram of another VR device provided by an embodiment of the present disclosure.
- FIG. 13 shows a flowchart of a three-dimensional display control method provided by an embodiment of the present disclosure
- Fig. 14 is a structural block diagram of a VR device provided by an embodiment of the present disclosure.
- Fig. 1 shows a schematic structural diagram of a three-dimensional display device provided by an embodiment of the present disclosure.
- the three-dimensional display device includes: a display layer 100 and a transmissive phase modulator 200.
- the transmissive phase modulator 200 is located on the light emitting side of the display layer 100.
- the transmissive phase modulator 200 that is, a spatial light modulator (Spatial Light Modulator) is used to change the phase of light, so that the angle of light emitted from different positions of the display layer 100 can be different (as shown in FIG. 1), To turn a flat image into a curved image with the depth of the scene.
- a spatial light modulator Spatial Light Modulator
- Fig. 2 shows a top view of a transmissive phase modulator provided by an embodiment of the present disclosure.
- the transmissive phase modulator 200 includes a plurality of modulation units 210, each of which is configured to phase-modulate the light received respectively, and each of the modulation units 210 is configured to display a picture displayed by the display layer 100 After passing through the transmissive phase modulator 200, a continuous curved virtual image appears.
- the light source emitted from the display layer 100 is a plane wave, which is modulated by a plurality of modulation units 210 when passing through the transmissive phase modulator 200, because each modulation unit 210 can separately phase-modulate the light received by each modulation unit 210.
- the transmissive phase modulator is arranged on the light-emitting surface of the display layer, the thickness of the transmissive phase modulator is small.
- the distance between the eyepiece and the display layer can be designed to be small , In turn, a larger field of view can be obtained; at the same time, since the distance between the eyepiece and the display layer can be designed to be smaller, the size of the entire VR device can also be designed to be smaller.
- Fig. 3 shows a schematic structural diagram of a transmissive phase modulator provided by an embodiment of the present disclosure.
- the transmissive phase modulator 200 includes two first electrode layers 201 arranged opposite to each other and a first liquid crystal layer 202 located between the two first electrode layers 201.
- the phase modulation of light is achieved by controlling the deflection of liquid crystal molecules. Specifically, the deflection angle of the liquid crystal molecules is different, and the phase difference between the O light and the E light when the light is refracted by the liquid crystal molecules of different modulation units is different, and the phase modulation of the light is realized.
- Each modulation unit is equivalent to a lens, and its focal length can be controlled by controlling the deflection angle of the liquid crystal molecules.
- the transmissive phase modulator 200 further includes a first alignment film 203 located on both sides of the first liquid crystal layer 202.
- FIG. 4 and 5 are schematic diagrams showing the junction of the liquid crystal layer provided by the embodiment of the present disclosure.
- the initial long axis directions of the liquid crystal molecules of the first liquid crystal layer 202 are the same, that is, the directions are the same in the unpowered state.
- the function of the first alignment film 203 is to align the liquid crystal molecules during the manufacturing process.
- the alignment directions are the same, for example, both are in the A direction in the figure, so that the liquid crystal molecules The initial long axis direction of the same.
- the electrode is energized, the long axis of the liquid crystal molecule will rotate in a plane perpendicular to the first alignment film and parallel to the A direction, as shown in FIG. 5.
- At least one of the two first electrode layers 201 of the transmissive phase modulator 200 includes a plurality of electrode blocks. As shown in FIG. 2, the plurality of electrode blocks 211 are arranged in an array, and each The electrode block 211 corresponds to a modulation unit 210 for controlling the deflection of liquid crystal molecules in the modulation unit 210.
- the liquid crystal layer of each modulation unit 210 of the transmissive phase modulator 200 is integrated, and the only difference is that the electrode blocks 211 are independent of each other.
- the shape and size of the electrode block 211 in FIG. 2 are for illustration only, and not as a limitation to the electrode block.
- each electrode block 211 may be connected to a driving device through an electrode line, and the driving device may provide voltages respectively.
- the first electrode layer 201 is a surface electrode, it may be a transparent indium tin oxide (ITO) electrode layer, which can ensure both conductivity and light transmission. If the first electrode layer 201 is an electrode block, a metal electrode can be used, and the area of the metal electrode can be designed to be small to ensure the aperture ratio of the modulation unit 210.
- ITO indium tin oxide
- Fig. 6 shows a schematic structural diagram of another transmissive phase modulator provided by an embodiment of the present disclosure.
- the transmissive phase modulator differs in that each modulation unit 210 has a control switch 212, and the control switch 212 may be a thin film transistor (TFT). ), the gate of each TFT is connected to the gate line, the source is connected to the data line, and the drain is connected to the electrode block.
- TFT thin film transistor
- the gate line and the data line enclose a region corresponding to the modulation unit 210, and the TFT is arranged in this region.
- the TFT is controlled to be turned on and off through the gate line, and a voltage signal is written to the electrode block 211 corresponding to the TFT through the data line.
- FIG. 7 is a schematic diagram of modulation provided by an embodiment of the present disclosure. Referring to FIG. 7, by controlling the deflection of the liquid crystal molecules of different modulation units 210 in the transmissive phase modulator, the focal length of each modulation unit 210 is controlled (the black dot in FIG. 7 ).
- the modulation units 210 with different focal lengths can modulate light with different phase differences, and the relationship between the focal length and the phase difference is as follows:
- ⁇ (x,y) is the phase difference of light modulated by the modulation unit 210 with coordinates (x,y) in the transmissive phase modulator 200
- f(x,y) is the modulation unit 210 with coordinates (x,y)
- the coordinates of the modulation unit 210 at the center position can be (0, 0), and then the coordinates are assigned to other modulation units 210 according to the xy coordinate system.
- ⁇ is the wavelength of light. In this application, light of different colors is not distinguished during phase modulation. For example, the wavelength of green light can be used for calculation.
- the phase difference corresponds to the deflection of the liquid crystal molecules
- the deflection of the liquid crystal molecules corresponds to the voltage applied to the electrode block.
- the focal length of the modulation unit corresponds to the three-dimensional coordinates of the image. Therefore, based on the above correspondence, the correspondence between the three-dimensional coordinates of the image and the electrode block voltage can be obtained. This relationship can be stored in the driving device and then used when the three-dimensional display device is working.
- the display layer 100 may be an organic light emitting diode (OLED) display layer.
- OLED organic light emitting diode
- the three-dimensional display device further includes: a linear polarizer (not shown in the figure) on the light exit side of the display layer 100, and the polarization direction of the light emitted by the OLED display layer after passing through the linear polarizer It is the same as the initial long axis direction of the liquid crystal molecules in the transmissive phase modulator 200.
- the liquid crystal molecules can only phase modulate the light whose polarization direction is consistent with the long axis direction, while the polarized light whose polarization direction is perpendicular to the long axis direction cannot be phase modulated. Therefore, It is necessary to arrange a linear polarizer on the light exit side of the display layer 100, and then the phase can be modulated by the liquid crystal molecules of the transmissive phase modulator.
- the display layer 100 is a liquid crystal display (Liquid Crystal Display, LCD) display layer.
- the LCD display layer includes a display substrate and a linear polarizer on the light exit side of the display substrate.
- the polarization direction of the light emitted from the LCD display layer is the same as the initial long axis direction of the liquid crystal molecules in the transmissive phase modulator 200.
- the LCD display layer itself has a linear polarizer, which produces linearly polarized light. Therefore, the light generated by the LCD display layer can be phase modulated by the liquid crystal molecules of the transmissive phase modulator.
- the direction of rubbing orientation of the first alignment film 203 in the aforementioned transmissive phase modulator 200 is consistent with the polarization direction of the aforementioned linear polarizer. That is, the direction of the rubbing orientation of the first alignment film 203 is consistent with the polarization direction of the light entering the transmissive phase modulator 200, so as to ensure that the light emitted from the display layer can be modulated by the transmissive phase modulator 200.
- FIG. 8 shows a top view of a display layer provided by an embodiment of the present disclosure.
- the display layer 100 includes a plurality of pixels 110, and each modulation unit 210 corresponds to a fixed number of pixels 110 among the plurality of pixels 110 respectively.
- the modulation unit and the pixel have a corresponding relationship, which is convenient to control the phase modulation amplitude of the modulation unit.
- the deflection of the liquid crystal molecules in the modulation unit can be controlled based on the scene depth (ie, three-dimensional coordinates) of the image to be displayed by the pixel corresponding to the modulation unit, so as to ensure that the light modulation meets the image scene. In-depth demand.
- the pixels 110 of the display layer 100 correspond to the modulation units 210 of the transmissive phase modulator 200 in a one-to-one correspondence, so that the maximum length can ensure the modulation accuracy of the scene depth of the 3D image.
- the pixels 110 of the display layer 100 and the modulation unit 210 of the transmissive phase modulator 200 may not have a one-to-one correspondence, for example, a plurality of pixels 110 of the display layer 100 and one modulation unit of the transmissive phase modulator 200 210 corresponds to, this design requires lower accuracy of the transmissive phase modulator 200, which is convenient for design and manufacture and drive control.
- the display layer 100 and the transmissive phase modulator 200 may be integrated together.
- the display layer 100 and the transmissive phase modulator 200 can be fabricated together, for example, the display layer is fabricated first, and then the transmissive phase modulator 200 is continuously fabricated on the display layer.
- the display layer 100 and the transmissive phase modulator 200 are manufactured separately first, and then the two are bonded together.
- FIG. 9 shows a schematic structural diagram of another three-dimensional display device provided by an embodiment of the present disclosure.
- the three-dimensional display device further includes an optical path adjusting liquid crystal cell 300, and the optical path adjusting liquid crystal cell 300 is located between the display layer 100 and the transmissive phase modulator 200.
- An optical path adjustment liquid crystal cell 300 is provided between the display layer 100 and the transmission type phase modulator 200.
- the optical path adjustment liquid crystal cell 300 can increase the distance between the display layer 100 and the transmission type phase modulator 200 to a certain extent, thereby increasing the imaging area.
- the required object distance expands the depth range of focal plane imaging (in the direction perpendicular to the display layer).
- the optical path adjusting liquid crystal cell 300 can adjust the optical path of the light passing through the optical path adjusting liquid crystal cell 300, thereby adjusting the object distance and adjusting the focal plane under the condition that the distance between the display layer 100 and the transmissive phase modulator 200 does not change.
- the depth range of the image can be adjusted.
- FIG. 10 shows a schematic diagram of the structure of an optical path adjustment liquid crystal cell provided by an embodiment of the present disclosure.
- the optical distance adjusting liquid crystal cell 300 includes two second electrode layers 301 arranged oppositely and a second liquid crystal layer 302 located between the two second electrode layers 301.
- the refractive index is controlled by controlling the deflection of liquid crystal molecules.
- the optical path adjustment liquid crystal cell 300 also includes a second alignment film 303 located on both sides of the liquid crystal layer 302.
- the initial long axis directions of the liquid crystal molecules of the second liquid crystal layer 302 are the same, that is, in the unpowered state The direction is the same.
- the role of the second alignment film 303 is to align the liquid crystal molecules during the manufacturing process.
- the alignment directions are the same, so that the initial long axis directions of the liquid crystal molecules are the same.
- the electrode is energized, the long axis of the liquid crystal molecule will rotate in a plane perpendicular to the second alignment film and parallel to the alignment direction.
- the alignment process is implemented through the second alignment film to align the liquid crystal molecules to ensure that the directions of the liquid crystal molecules are consistent.
- the function of the optical path adjustment liquid crystal cell 300 is to adjust the optical path, and there is no need to differentiate the light of different pixels on the display layer 100. Therefore, the optical path adjustment liquid crystal cell 300 can adopt a pixelless structure. That is, different positions on the optical path adjustment liquid crystal cell have the same effect on the change of the optical path.
- the two second electrode layers 301 in the optical path adjusting liquid crystal cell 300 are both surface electrodes, so that the liquid crystal molecules of the entire optical path adjusting liquid crystal cell can be deflected to a desired angle under the control of the two surface electrodes, so as to achieve alignment. Control of light path.
- the second electrode layer 301 may be an ITO electrode layer, which can not only ensure the conductivity performance, but also ensure the light transmission performance of the optical path adjustment liquid crystal cell.
- the deflection direction of the liquid crystal molecules can be changed by changing the voltage applied to the electrodes on both sides of the optical path adjustment liquid crystal cell.
- the optical path length adjusts the refraction of the liquid crystal cell.
- the rate of emission changes, and the optical path of the light from the liquid crystal cell through the optical path adjustment also changes, so that the size of the imaged object distance changes.
- the corresponding relationship between the scene depth range and the voltage loaded on both sides of the optical path adjustment liquid crystal cell can be determined in advance. In this way, when the three-dimensional display device is working, it only needs to obtain the scene depth range of the image, and then load the corresponding The voltage of the light path can be adjusted to the liquid crystal cell.
- the direction of rubbing orientation of the second alignment film 303 in the aforementioned optical path adjustment liquid crystal cell 300 is consistent with the polarization direction of the aforementioned linear polarizer. That is, the direction of the rubbing orientation of the second alignment film 303 is consistent with the polarization direction of the light entering the optical path adjusting liquid crystal cell 300, thereby ensuring that the optical path can be adjusted by adjusting the deflection direction of the liquid crystal.
- FIG. 11 shows an imaging schematic diagram of a three-dimensional display device provided by an embodiment of the present disclosure.
- the working principle of the three-dimensional display device is based on the process of secondary imaging: the image presented on the display layer passes through the phase modulator and becomes an enlarged curved virtual image at the rear, which we call the intermediate image A1.
- the intermediate image A1 passes through the eyepiece into an enlarged virtual image A2 with a larger depth range. Behind the intermediate image, the final imaging depth is consistent with the depth of the scene. In this way, the human eye can see the three-dimensional virtual image of the curved surface that matches the scene.
- the embodiment of the present disclosure also provides a VR device.
- the VR device includes: the three-dimensional display device 10 shown in FIG. 1 or FIG. 9; and an eyepiece 20 provided on the light-emitting side of the transmissive phase modulator 200 in the three-dimensional display device 10.
- the VR device may be a head-mounted VR device or other types of VR devices.
- Fig. 12 shows a structural block diagram of another VR device provided by an embodiment of the present disclosure.
- the VR device also includes:
- the control device 30 is configured to obtain the 3D picture to be displayed; based on the 3D picture to be displayed, it controls the display of the display layer 100 in the three-dimensional display device 10, and controls each modulation unit 210 of the transmissive phase modulator 200 to respond to each received The light undergoes phase modulation.
- the display layer and the transmissive phase modulator are controlled based on the 3D picture to control the display of the VR device.
- control device 300 may be a driving integrated circuit in an AR device.
- the 3D picture to be displayed may be the next frame of picture to be displayed, or the next few frames of picture to be displayed.
- control device 30 is configured to determine the voltage corresponding to each modulation unit 210 of the transmissive phase modulator 200 based on the 3D picture to be displayed;
- the voltage corresponding to each modulation unit 210 is used to control the operation of each modulation unit 210 of the transmissive phase modulator 200.
- the voltage of the modulation unit can be determined based on the 3D picture, and the work of each modulation unit is controlled based on the voltage to complete the phase modulation.
- one side electrode is a surface electrode
- the other side electrode is an electrode block.
- the level of the surface electrode remains unchanged, and the level of each electrode block can be controlled according to the 3D picture to be displayed.
- control device 30 is configured to determine the (three-dimensional) coordinates of the pixels of the 3D picture corresponding to each modulation unit 210 based on the 3D picture to be displayed;
- the voltage corresponding to each modulation unit 210 is determined based on the coordinates of the pixels of the 3D screen corresponding to each modulation unit 210.
- the modulation unit of the phase modulator and the pixels of the display layer usually do not have a one-to-one correspondence, usually one modulation unit corresponds to multiple pixels. Therefore, it is necessary to first determine the three-dimensional coordinates of the multiple pixels corresponding to the modulation unit during control.
- the coordinate determines the voltage, where the corresponding relationship between the three-dimensional coordinate and the voltage can be determined and stored in advance.
- the way of determining the voltage based on the three-dimensional coordinates of multiple pixels may be as follows: calculate the average value of the three-dimensional coordinates of multiple pixels, and use the average value to determine the corresponding voltage. Alternatively, the maximum, minimum, or median value of the three-dimensional coordinates of multiple pixels is selected, and the selected three-dimensional coordinates are used to determine the corresponding voltage.
- the corresponding relationship between the modulation unit and the pixels of the display layer may be determined and stored in advance.
- the refractive index of the optical path adjustment liquid crystal cell is different, the corresponding relationship between the modulation unit and the pixels of the display layer can also be different, so that the accuracy can be guaranteed to the greatest extent.
- the corresponding relationship between the modulation unit and the pixels of the display layer can also be the same, because the modulation unit and the pixel are in a one-to-many relationship, and the pixels in the same position display similar pictures, even if
- the refractive index of the optical path adjustment liquid crystal cell is different, the corresponding relationship between the modulation unit and the pixels of the display layer is kept unchanged, the modulation is not affected, and the driving is simpler.
- FIG. 13 shows a flowchart of a three-dimensional display control method provided by an embodiment of the present disclosure.
- the method may be executed by the aforementioned control device, and the method includes:
- Step 401 Obtain a 3D picture to be displayed.
- Step 402 Control the display of the display layer in the three-dimensional display device based on the 3D picture to be displayed, and control each modulation unit of the transmissive phase modulator to phase modulate the light received by each.
- the display layer and the transmissive phase modulator are controlled based on the 3D picture to control the display of the VR device.
- controlling each modulation unit of the transmissive phase modulator to perform phase modulation on the light received by each includes:
- the voltage corresponding to each modulation unit is used to control the operation of each modulation unit of the transmissive phase modulator.
- the voltage of the modulation unit can be determined based on the 3D picture, and the work of each modulation unit is controlled based on the voltage to complete the phase modulation.
- determining the voltage corresponding to each modulation unit of the transmissive phase modulator based on the 3D picture to be displayed includes:
- the voltage corresponding to each modulation unit is determined based on the coordinates of the pixels of the 3D image corresponding to each modulation unit.
- the modulation unit of the phase modulator and the pixels of the display layer usually do not have a one-to-one correspondence, usually one modulation unit corresponds to multiple pixels. Therefore, it is necessary to first determine the three-dimensional coordinates of the multiple pixels corresponding to the modulation unit during control.
- the coordinate determines the voltage, where the corresponding relationship between the three-dimensional coordinate and the voltage can be determined and stored in advance.
- the way of determining the voltage based on the three-dimensional coordinates of multiple pixels may be as follows: calculate the average value of the three-dimensional coordinates of multiple pixels, and use the average value to determine the corresponding voltage. Alternatively, the maximum, minimum, or median value of the three-dimensional coordinates of multiple pixels is selected, and the selected three-dimensional coordinates are used to determine the corresponding voltage.
- the corresponding relationship between the modulation unit and the pixels of the display layer may be determined and stored in advance.
- the refractive index of the optical path adjustment liquid crystal cell is different, the corresponding relationship between the modulation unit and the pixels of the display layer can also be different, so that the accuracy can be guaranteed to the greatest extent.
- the corresponding relationship between the modulation unit and the pixels of the display layer can also be the same, because the modulation unit and the pixel are in a one-to-many relationship, and the pixels in the same position display similar pictures, even if
- the refractive index of the optical path adjustment liquid crystal cell is different, the corresponding relationship between the modulation unit and the pixels of the display layer is kept unchanged, the modulation is not affected, and the driving is simpler.
- FIG. 14 is a structural block diagram of a VR device 500 provided by an embodiment of the present disclosure.
- the device 500 includes a processor 501 and a memory 502.
- the processor 501 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on.
- the processor 501 may adopt at least one hardware form among DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array, Programmable Logic Array). achieve.
- the processor 501 may also include a main processor and a coprocessor.
- the main processor is a processor used to process data in the awake state, also called a CPU (Central Processing Unit, central processing unit); the coprocessor is A low-power processor used to process data in the standby state.
- the processor 501 may be integrated with a GPU (Graphics Processing Unit, image processor), and the GPU is used for rendering and drawing content that needs to be displayed on the display screen.
- the processor 501 may further include an AI (Artificial Intelligence) processor, and the AI processor is used to process computing operations related to machine learning.
- AI Artificial Intelligence
- the memory 502 may include one or more computer-readable storage media, which may be non-transitory.
- the memory 502 may also include high-speed random access memory and non-volatile memory, such as one or more magnetic disk storage devices and flash memory storage devices.
- the non-transitory computer-readable storage medium in the memory 502 is used to store at least one instruction, and the at least one instruction is used to be executed by the processor 501 to implement the engine system provided in the method embodiment of the present application Fuel supply control method.
- the device 500 may optionally further include: a peripheral device interface 503 and at least one peripheral device.
- the processor 501, the memory 502, and the peripheral device interface 503 may be connected by a bus or a signal line.
- Each peripheral device can be connected to the peripheral device interface 503 through a bus, a signal line, or a circuit board.
- FIG. 14 does not constitute a limitation on the device 500, and may include more or less components than those shown in the figure, or combine certain components, or adopt different component arrangements.
- non-transitory computer-readable storage medium including instructions, such as a memory including instructions, which can be executed by a processor to complete the three-dimensional display control method shown in each embodiment of the present invention.
- the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and so on.
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Abstract
Description
Claims (12)
- 一种三维显示装置,包括:显示层和透射型相位调制器;所述透射型相位调制器位于所述显示层的出光侧;所述透射型相位调制器包括多个调制单元,每个调制单元分别被配置为对各自接收到的光进行相位调制,各所述调制单元被构造成使得所述显示层显示的画面经过所述透射型相位调制器后呈现连续的曲面虚像。
- 根据权利要求1所述的三维显示装置,其中,所述透射型相位调制器包括相对布置的两个第一电极层以及位于所述两个第一电极层之间的第一液晶层。
- 根据权利要求2所述的三维显示装置,其中,所述透射型相位调制器还包括位于所述第一液晶层两侧的第一取向膜,所述第一液晶层的液晶分子的初始长轴方向一致。
- 根据权利要求2或3所述的三维显示装置,其中,所述透射型相位调制器的两个第一电极层中至少一个包括多个阵列分布的电极块,每个所述电极块对应一个调制单元。
- 根据权利要求1至4任一项所述的三维显示装置,其中,所述三维显示装置还包括光程调整液晶盒,所述光程调整液晶盒位于所述显示层和透射型相位调制器之间;所述光程调整液晶盒包括相对布置的两个第二电极层以及位于所述两个第二电极层之间的第二液晶层;所述光程调整液晶盒还包括位于所述第二液晶层两侧的第二取向膜,所述第二液晶层的液晶分子的初始长轴方向一致。
- 根据权利要求1至5任一项所述的三维显示装置,其中,所述显示层为OLED显示层,所述三维显示装置,还包括:位于所述显示层的出光侧的线偏振片,所述OLED显示层发出的光经过所述线偏振片后的偏振方向与所述透射型相位调制器中液晶分子的初始长轴方向相同。
- 根据权利要求1至5任一项所述的三维显示装置,其中,所述显示层为LCD显示层,所述LCD显示层包括显示基板以及位于所述显示基板的出光侧的线偏振片,从所述LCD显示层出射的光线的偏振方向与所述透射型相位调制器中液晶分子的初始长轴方向相同。
- 根据权利要求1至7任一项所述的三维显示装置,其中,所述显示层包括多个像素,每个所述调制单元分别与所述多个像素中的固定数量的像素对应。
- 一种虚拟现实设备,包括:如权利要求1至8任一项所述的三维显示装置;对应所述三维显示装置中的透射型相位调制器的出光侧设置的目镜。
- 根据权利要求9所述的虚拟现实设备,其中,所述虚拟现实设备,还包括:控制装置,被配置为获取待显示的3D画面;基于所述待显示的3D画面控制所述三维显示装置中的显示层显示,并控制所述透射型相位调制器的各个调制单元对各自接收到的光进行相位调制。
- 根据权利要求10所述的虚拟现实设备,其中,所述控制装置,被配置为基于所述待显示的3D画面确定所述透射型相位调制器的各个调制单元对应的电压;采用所述各个调制单元对应的电压控制所述透射型相位调制器的各个调制单元工作。
- 根据权利要求11所述的虚拟现实设备,其中,所述控制装置,被配置为基于所述待显示的3D画面,确定所述各个调制单元对应的3D画面的像素的坐标;基于所述各个调制单元对应的3D画面的像素的坐标确定所述各个调制单元对应的电压。
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US16/772,902 US11509882B2 (en) | 2019-08-26 | 2019-08-26 | Three-dimensional display apparatus and virtual reality device |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101681023A (zh) * | 2007-06-01 | 2010-03-24 | 夏普株式会社 | 光学系统和显示器 |
CN103116228A (zh) * | 2011-11-16 | 2013-05-22 | 乐金显示有限公司 | 使用透射型液晶显示面板的空间光调制面板及使用该空间光调制面板的3d显示装置 |
CN106873169A (zh) * | 2015-12-10 | 2017-06-20 | 上海交通大学 | 三维显示器 |
CN208044203U (zh) * | 2018-04-28 | 2018-11-02 | 北京京东方光电科技有限公司 | 显示设备、光学系统和虚拟现实头戴显示设备 |
CN109507807A (zh) * | 2018-11-05 | 2019-03-22 | 浙江大学 | 基于光偏振和双折射的变光程三维虚拟现实显示装置和方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7580178B2 (en) | 2004-02-13 | 2009-08-25 | Angstrom, Inc. | Image-guided microsurgery system and method |
GB0403933D0 (en) | 2004-02-21 | 2004-03-24 | Koninkl Philips Electronics Nv | Optical path length adjuster |
JP2010205381A (ja) * | 2009-03-06 | 2010-09-16 | Sony Corp | 再生装置、再生方法 |
CN104580869B (zh) | 2013-10-10 | 2018-06-05 | 华为技术有限公司 | 一种光场相机 |
CN105807481B (zh) * | 2016-05-25 | 2022-07-15 | 京东方科技集团股份有限公司 | 一种虚拟曲面显示面板、其制作方法及显示装置 |
CN105894970B (zh) | 2016-06-15 | 2019-02-12 | 京东方科技集团股份有限公司 | 一种虚拟曲面显示面板及显示装置 |
CN105954883B (zh) * | 2016-06-17 | 2018-11-16 | 擎中科技(上海)有限公司 | 一种显示器件及显示设备 |
CN106125394B (zh) | 2016-09-07 | 2022-08-09 | 京东方科技集团股份有限公司 | 一种虚拟曲面显示面板、显示装置及显示方法 |
CN107357047A (zh) | 2017-09-14 | 2017-11-17 | 京东方科技集团股份有限公司 | 立体显示装置及其显示方法 |
KR102650507B1 (ko) * | 2017-09-27 | 2024-03-21 | 매직 립, 인코포레이티드 | 별개의 위상 및 진폭 변조기들을 갖는 근안 3d 디스플레이 |
CN107884940A (zh) | 2017-11-28 | 2018-04-06 | 腾讯科技(深圳)有限公司 | 显示模组、头戴式显示设备及图像立体显示方法 |
CN109742256B (zh) * | 2019-01-03 | 2021-01-15 | 京东方科技集团股份有限公司 | 一种显示面板及驱动方法、显示装置 |
-
2019
- 2019-08-26 US US16/772,902 patent/US11509882B2/en active Active
- 2019-08-26 WO PCT/CN2019/102570 patent/WO2021035473A1/zh active Application Filing
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101681023A (zh) * | 2007-06-01 | 2010-03-24 | 夏普株式会社 | 光学系统和显示器 |
CN103116228A (zh) * | 2011-11-16 | 2013-05-22 | 乐金显示有限公司 | 使用透射型液晶显示面板的空间光调制面板及使用该空间光调制面板的3d显示装置 |
CN106873169A (zh) * | 2015-12-10 | 2017-06-20 | 上海交通大学 | 三维显示器 |
CN208044203U (zh) * | 2018-04-28 | 2018-11-02 | 北京京东方光电科技有限公司 | 显示设备、光学系统和虚拟现实头戴显示设备 |
CN109507807A (zh) * | 2018-11-05 | 2019-03-22 | 浙江大学 | 基于光偏振和双折射的变光程三维虚拟现实显示装置和方法 |
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