A three-dimensional display system and methods for forming 3D images are disclosed. In one version, a diffusion screen is formed at a predetermined location.sub.1 of a set of predetermined locations 1-n within an image chamber. The diffusion screen is illuminated with visible light indicative of a cross-sectional image.sub.1 of a set of a plurality of cross-sectional images 1-N of a three-dimensional image at the predetermined location.sub.1 within the image chamber. The diffusion screen is erased and the method is repeated for cross-sectional images 2-N and predetermined locations 2-n of the three-dimensional image at a scan rate sufficient to produce a representation of the three-dimensional image in the image chamber.

A display device (100) has a plurality of display elements (101) arranged in a display plane for rendering a three-dimensional image in accordance with image data (330). Each display element has a pixel (120) and an actuator (130) for moving the pixel normal to the display plane. The actuator of each display element is operable, in response to receiving a position value for the pixel, to move the pixel normal to the display plane in accordance with the position value.

A display device (100) has a plurality of display elements (101) arranged in a display plane for rendering a three-dimensional image in accordance with image data (330). Each display element has a pixel (120) and an actuator (130) for moving the pixel normal to the display plane. The actuator of each display element is operable, in response to receiving a position value for the pixel, to move the pixel normal to the display plane in accordance with the position value.

A head up display arrangement for a motor vehicle includes a disc having a plurality of holographic optical elements. A motor rotates the disc. An image source produces an image. A transmissive display receives the image and collimated coherent light and projects an illuminated version of the image onto the disc. An optical element receives a reflection of the illuminated version of the image off of the disc and projects the reflection onto a windshield of the motor vehicle.

Apparatuses and methods for displaying a 3-D representation of an object are described. Apparatuses can include a rotatable structure, motor, and multiple light field sub-displays disposed on the rotatable structure. The apparatuses can store a light field image to be displayed, the light field image providing multiple different views of the object at different viewing directions. A processor can drive the motor to rotate the rotatable structure and map the light field image to each of the light field sub-displays based in part on the rotation angle, and illuminate the light field sub-displays based in part on the mapped light field image. The apparatuses can include a display panel configured to be viewed from a fiducial viewing direction, where the display panel is curved out of a plane that is perpendicular to the fiducial viewing direction, and a plurality of light field sub-displays disposed on the display panel.

Apparatuses and methods for displaying a 3-D representation of an object are described. Apparatuses can include a rotatable structure, motor, and multiple light field sub-displays disposed on the rotatable structure. The apparatuses can store a light field image to be displayed, the light field image providing multiple different views of the object at different viewing directions. A processor can drive the motor to rotate the rotatable structure and map the light field image to each of the light field sub-displays based in part on the rotation angle, and illuminate the light field sub-displays based in part on the mapped light field image. The apparatuses can include a display panel configured to be viewed from a fiducial viewing direction, where the display panel is curved out of a plane that is perpendicular to the fiducial viewing direction, and a plurality of light field sub-displays disposed on the display panel.

Apparatuses and methods for displaying a 3-D representation of an object are described. Apparatuses can include a rotatable structure, motor, and multiple light field sub-displays disposed on the rotatable structure. The apparatuses can store a light field image to be displayed, the light field image providing multiple different views of the object at different viewing directions. A processor can drive the motor to rotate the rotatable structure and map the light field image to each of the light field sub-displays based in part on the rotation angle, and illuminate the light field sub-displays based in part on the mapped light field image. The apparatuses can include a display panel configured to be viewed from a fiducial viewing direction, where the display panel is curved out of a plane that is perpendicular to the fiducial viewing direction, and a plurality of light field sub-displays disposed on the display panel.

A method of simulating volumetric 3D display, includes: acquiring a display variable of a virtual display screen in a volumetric 3D display simulation space, the virtual display screen comprising a plurality of stereo pixels, the display variable comprising a voxel parameter of the plurality of stereo pixels, and the voxel parameter comprising a size in a first direction of the plurality of stereo pixels, a size in a second direction of the plurality of stereo pixels, and a size in a third direction of the plurality of stereo pixels; determining a display state parameter of a first stereo pixel of the plurality of stereo pixels for an object to be displayed according to the display variable; and simulating display of the object to be displayed according to the display state parameter. A computer-readable storage medium and a volumetric 3D display simulation apparatus are further provided.

A method of simulating volumetric 3D display, includes: acquiring a display variable of a virtual display screen in a volumetric 3D display simulation space, the virtual display screen comprising a plurality of stereo pixels, the display variable comprising a voxel parameter of the plurality of stereo pixels, and the voxel parameter comprising a size in a first direction of the plurality of stereo pixels, a size in a second direction of the plurality of stereo pixels, and a size in a third direction of the plurality of stereo pixels; determining a display state parameter of a first stereo pixel of the plurality of stereo pixels for an object to be displayed according to the display variable; and simulating display of the object to be displayed according to the display state parameter. A computer-readable storage medium and a volumetric 3D display simulation apparatus are further provided.

The present disclosure provides a device for stereoscopic displaying and a method for controlling the same. The device for stereoscopic displaying comprises: a rotary shaft and at least one display assembly. The display assembly is fixed to the rotary shaft, the display assembly comprises at least three display surfaces, and at least one of the display surfaces is arranged opposite to the rotary shaft in a radial direction of the rotary shaft.