A stiffening strip at selected edges of a screen may enable the use and mounting of a high-elastic modulus substrate screen material. Such screen materials may be engineered to provide polarization-preserving characteristics, and be applied to or part of the high-elastic modulus substrate. Furthermore, the stiffening strip may enable the use of screen vibration techniques to reduce speckle in display applications that use projection screens, particularly those display applications using illumination sources prone to speckle such as laser-based projection. The screen vibration may be provided by a vibrating device attached to the stiffening strip.

A stiffening strip at selected edges of a screen may enable the use and mounting of a high-elastic modulus substrate screen material. Such screen materials may be engineered to provide polarization-preserving characteristics, and be applied to or part of the high-elastic modulus substrate. Furthermore, the stiffening strip may enable the use of screen vibration techniques to reduce speckle in display applications that use projection screens, particularly those display applications using illumination sources prone to speckle such as laser-based projection. The screen vibration may be provided by a vibrating device attached to the stiffening strip.

To provide a hologram, a light-transmissive reflector plate, a screen, and a projection system capable of achieving high transparency and allowing a projected image to be brightly and clearly reflected and observed.

A hologram 1 has a relief part, wherein the hologram 1 reflects a given white light incident thereon at a given angle from one side, while transmits a given white light incident thereon at a given angle from the other side, and diffraction efficiency for transmitted light and diffraction efficiency for reflected light differ from each other.

A display apparatus including: an image projecting unit for emitting projection light of an image; and a screen unit including: a Fresnel lens disposed correspondingly to the projection light; and a transmitting diffuser which includes a first display section disposed on a light-emitting side corresponding to a first area of the Fresnel lens and a second display section disposed on a light-emitting side corresponding to a second area different from the first area of the Fresnel lens, a part of the second display section being separated from the Fresnel lens for a predetermined distance.

A display apparatus including: an image projecting unit for emitting projection light of an image; and a screen unit including: a Fresnel lens disposed correspondingly to the projection light; and a transmitting diffuser which includes a first display section disposed on a light-emitting side corresponding to a first area of the Fresnel lens and a second display section disposed on a light-emitting side corresponding to a second area different from the first area of the Fresnel lens, a part of the second display section being separated from the Fresnel lens for a predetermined distance.

There is provided a display device capable of extending the range of its application by enhancing the designability and the diversity of the display manner and by improving visual effects. The display device includes: a projector configured to project light to display information in the form of a projection image; a screen having a display surface through which light projected by the projector passes to form a projection image thereon; and a controller configured to control the projector. The display surface has a non-planar shape.

There is provided a display device capable of extending the range of its application by enhancing the designability and the diversity of the display manner and by improving visual effects. The display device includes: a projector configured to project light to display information in the form of a projection image; a screen having a display surface through which light projected by the projector passes to form a projection image thereon; and a controller configured to control the projector. The display surface has a non-planar shape.

The present disclosure provides a display system comprising a retro-reflective screen having retro-reflective screen elements that reflect incident light. Each of the retro-reflective screen elements can include three intersecting planes. At least one of the three intersecting planes intersects an adjacent plane at an angle that is 90 with an offset greater than 0. The display system can further include at least one projector that projects the light onto the retro-reflective, which light characterizes an image or video. The retro-reflective screen having the retro-reflective screen elements can reflect the light at a cross-talk that is decreased by at least 10% and/or an intensity that is increased by at least 5%, as compared to a retro-reflective screen with retro-reflective screen elements having planes that each intersects an adjacent plane at an angle of 90 without the offset.

The present disclosure provides a display system comprising a retro-reflective screen having retro-reflective screen elements that reflect incident light. Each of the retro-reflective screen elements can include three intersecting planes. At least one of the three intersecting planes intersects an adjacent plane at an angle that is 90 with an offset greater than 0. The display system can further include at least one projector that projects the light onto the retro-reflective, which light characterizes an image or video. The retro-reflective screen having the retro-reflective screen elements can reflect the light at a cross-talk that is decreased by at least 10% and/or an intensity that is increased by at least 5%, as compared to a retro-reflective screen with retro-reflective screen elements having planes that each intersects an adjacent plane at an angle of 90 without the offset.

An apparatus for generating a display medium includes a medium generating module arranged to selectively generate at least one portion of the display medium within a predetermined three-dimensional space, wherein the at least one portion of the display medium is arranged to receive an optical signal representing a visible image so as to display a portion or whole visible image within the predetermined three-dimensional space.