A display device includes a transparent light guiding layer having a bottom face on which a light diffusing region is formed as a design, a retroreflective layer, a polarizing beam that allows light having a first polarization direction to pass therethrough, and an emission unit configured to emit into the light guiding layer the light having the first polarization direction, or light having a different second polarization direction. When light having the first polarization direction is emitted, light reflected by the light diffusing region passes through the polarizing beam splitter such that the design is viewable. When light having the second polarization direction is emitted, light reflected by the retroreflective layer passes through the polarizing beam splitter such that an aerial image of the design is viewable.

This application discloses a display method and a display control apparatus. The display system includes a projection screen, the projection screen includes a transparent substrate and a liquid crystal film covering the transparent substrate, and the liquid crystal film includes a plurality of liquid crystal cells. The display method includes: obtaining a to-be-displayed image; determining a target liquid crystal cell from the plurality of liquid crystal cells based on locations of pixels in the to-be-displayed image; setting a status of the target liquid crystal cell to a scattering state, and setting a status of a non-target liquid crystal cell to a transparent state, where the non-target liquid crystal cell is a liquid crystal cell in the plurality of liquid crystal cells other than the target liquid crystal cell; and displaying a projection image of the to-be-displayed image on the target liquid crystal cell.

This application discloses a display method and a display control apparatus. The display system includes a projection screen, the projection screen includes a transparent substrate and a liquid crystal film covering the transparent substrate, and the liquid crystal film includes a plurality of liquid crystal cells. The display method includes: obtaining a to-be-displayed image; determining a target liquid crystal cell from the plurality of liquid crystal cells based on locations of pixels in the to-be-displayed image; setting a status of the target liquid crystal cell to a scattering state, and setting a status of a non-target liquid crystal cell to a transparent state, where the non-target liquid crystal cell is a liquid crystal cell in the plurality of liquid crystal cells other than the target liquid crystal cell; and displaying a projection image of the to-be-displayed image on the target liquid crystal cell.

A lensed display system includes a projector configured to project an image. The lensed display system includes a lens formed of a glass or crystalline material. The lens includes a first surface, wherein at least a portion of the first surface includes a coating that is configured to display the projected image. The lens includes a second surface, wherein the second surface comprises a transparent curved surface that is configured to face toward a user and to enable the user to view the image projected onto the coating through the transparent curved surface.

An image display device (100) includes: a first image projection unit (S1) configured to project a first image; a beam splitter (BS1) configured to reflect a part of light emitted from the first image projection unit (S1) in a first direction and transmit remaining light in a second direction; a retroreflection unit (RR) configured to retroreflect, to the beam splitter (BS1), light traveling from the beam splitter (BS1) in one of the first direction and the second direction; a reflection unit (M) configured to reflect, to the beam splitter (BS1), light traveling from the beam splitter (BS1) in the other of the first direction and the second direction; and an image forming optical unit (DM) configured to form an image of the light reflected by the retroreflection unit (RR) and the reflection unit (M) in a space.

A light field (LF) display system for displaying holographic content (e.g., a holographic sporting event or holographic content to augment a holographic sporting event) to viewers in an arena. The LF display system in the arena includes LF display modules tiled together to form an array of LF modules. The array of LF modules create a holographic object volume for displaying the holographic content in the arena. The array of LF modules displays the holographic content to viewers in the viewing volumes. The LF display system can be included in a LF sporting event network. The LF sporting event network allows holographic content to be created at one location and presented at another location. The LF sporting event network includes a network system to manage the digital rights of the holographic sporting event content.

A light field (LF) display system for displaying holographic content (e.g., a holographic sporting event or holographic content to augment a holographic sporting event) to viewers in an arena. The LF display system in the arena includes LF display modules tiled together to form an array of LF modules. The array of LF modules create a holographic object volume for displaying the holographic content in the arena. The array of LF modules displays the holographic content to viewers in the viewing volumes. The LF display system can be included in a LF sporting event network. The LF sporting event network allows holographic content to be created at one location and presented at another location. The LF sporting event network includes a network system to manage the digital rights of the holographic sporting event content.

An aerial display apparatus includes: a light source unit that emits light; a display device that transmits the light from the light source unit to display an image; a light control device that transmits the light from the display device to emit the light such that light intensity of the light has a peak in a direction oblique to a normal direction that is perpendicular to a first direction within a principal plane of the display device; and a mirror device that reflects the light from the light control device to display an image in air on a side opposite to the light control device. The mirror device includes a plurality of optical elements each having a hexahedron shape. Each of the plurality of optical elements includes first and second reflection surfaces that reflect light. Each of the first and second reflection surfaces is placed obliquely to the normal direction.

An aerial display apparatus includes: a light source unit that emits light; a display device that transmits the light from the light source unit to display an image; a light control device that transmits the light from the display device to emit the light such that light intensity of the light has a peak in a direction oblique to a normal direction that is perpendicular to a first direction within a principal plane of the display device; and a mirror device that reflects the light from the light control device to display an image in air on a side opposite to the light control device. The mirror device includes a plurality of optical elements each having a hexahedron shape. Each of the plurality of optical elements includes first and second reflection surfaces that reflect light. Each of the first and second reflection surfaces is placed obliquely to the normal direction.

A floating image-type control device, an interactive display system and a floating control method are provided. The floating image-type control device includes a rotation component and a control component. The rotation component includes a fixing portion, a bearing body and a rotation shaft. The rotation shaft is connected to the bearing body. The rotation shaft rotates relative to the fixing portion to drive the bearing body to rotate. The control component includes an image capturing unit, a zero-point calibration unit and an image analysis unit. The image capturing unit is disposed on the bearing body. The image capturing unit rotates with the bearing body and continuously captures several images. The zero-point calibration unit is used to send a zero-point signal when the bearing body rotates to a predetermined angle. The image analysis unit is used to obtain an operation signal based on the images and the zero-point signal.