The present invention provides a rear projection simulator system with a free-form fold mirror. The system includes a high definition projector and a curved screen. The free-form fold mirror is interposed between the projector and the screen. The free-form fold mirror includes one or more non-planar (e.g., curved) portions to eliminate or reduce loss of resolution of the projected image near the edges or boundaries of the image.

The present invention provides a rear projection simulator system with a free-form fold mirror. The system includes a high definition projector and a curved screen. The free-form fold mirror is interposed between the projector and the screen. The free-form fold mirror includes one or more non-planar (e.g., curved) portions to eliminate or reduce loss of resolution of the projected image near the edges or boundaries of the image.

An image display apparatus including one or more virtual-image screens, a display section, and a display control unit. The one or more virtual-image screens are arranged to cover at least a part of a periphery of a predetermined axis, display a virtual image of a projected image by using the predetermined axis as a basis, and are transparent. The display section has one or more display surfaces that display a plurality of viewpoint images in mutually different directions and project the plurality of displayed viewpoint images onto the one or more virtual-image screens, respectively, the plurality of viewpoint images being images of a display target as viewed from mutually different directions. The display control unit displays, a virtual image of the display target that is visible from a second direction extending toward the predetermined axis from the observation point.

A transparent display panel and a control method and apparatus therefor, a display system, and a computer-readable storage medium. The transparent display panel includes: a liquid crystal panel (11), and a transflective optical film layer (12) disposed on one side of the liquid crystal panel (11), wherein a plurality of microstructures (31) for scattering incident light rays are provided in the transflective optical film layer (12), in order to present a projected image. The transparency level of the transparent display panel is determined by acquiring the ambient light intensity of the transparent display panel or a grayscale average of a projected image at each first region, and the light transmittance level of the liquid crystal panel is adjusted according to the transparency level, thereby improving the projection display effect.

A Fresnel projection screen includes: a Fresnel layer; a first micro-structure layer disposed at a light incident side of the Fresnel layer, the first micro-structure layer including a plurality of micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; a second micro-structure layer disposed on a surface of the first micro-structure layer, the second micro-structure layer including a plurality of second micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; and a reflective layer disposed on a side of the Fresnel layer away from the first micro-structure layer.

A Fresnel projection screen includes: a Fresnel layer; a first micro-structure layer disposed at a light incident side of the Fresnel layer, the first micro-structure layer including a plurality of micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; a second micro-structure layer disposed on a surface of the first micro-structure layer, the second micro-structure layer including a plurality of second micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; and a reflective layer disposed on a side of the Fresnel layer away from the first micro-structure layer.

A display system comprises a projector combined with a retro reflective screen and a viewer distance from the projector such that the observation angle is less than approximately 2-3 degrees. The brightness of the image on the screen for the proposed display system is increased by a factor of ˜100-500× as compared to traditional display systems with for an equivalent power/intensity light source.

A display system comprises a projector combined with a retro reflective screen and a viewer distance from the projector such that the observation angle is less than approximately 2-3 degrees. The brightness of the image on the screen for the proposed display system is increased by a factor of ˜100-500× as compared to traditional display systems with for an equivalent power/intensity light source.

The present invention provides a structure of short-throw ambient light rejecting screen, which comprises a base and an optical structure device disposed on the base. The optical structure device includes a plurality of optical structure parts. Each of the plurality of optical structure parts includes a first side, a second side, and a base part. The first side and the base form a first angle for reflecting a light source. The second side and the base form a second angle for absorbing a light source. The base part is a length on the base confined by first side and the second side. The first angle is 20˜40 degrees. The second angle is 70˜90 degrees. The length on the base part is 250˜350 um. By adjusting the first angle, the second angle, and the length on the base part of each optical structure part, the height of the optical structure part can be maintained constant. In addition, the differences between the incident projection angles can be reduced as well. By improving the process yield, the appearance of the scrolled screen can form a neat cylinder.

A projection screen including a substrate, Fresnel structures and a protective layer is provided. The Fresnel structures are located on a surface of the substrate facing an image-source side and arranged along a first direction. Each Fresnel structure extends along a second direction. The protective layer has a first surface facing the image-source side. The first surface has optical microstructures. The optical microstructures are orthographically projected on a reference plane to form orthographic projection patterns. Each of the orthographic projection patterns has a first axis and a second axis substantially perpendicular to each other. The first axis passes through two end points having a maximum distance in the first direction. The second axis passes through two end points having a maximum distance in the second direction. Each of the orthographic projection patterns is symmetry to at least one of the first axis and the second axis.