Abstract: A light reflecting device includes two substrates and a liquid crystal layer. The two substrates are parallel to each other and respectively electrically connected to a voltage source to generate an electric field therebetween. Each of the two substrates has an inner surface having a horizontal orientation. The liquid crystal layer is formed by liquid crystal materials filled between the two substrates. The liquid crystal materials include liquid crystal molecules and ions of salt species. The liquid crystal molecules are at least formed by negative liquid crystals and chiral molecules. The liquid crystal layer is respectively switched to a diffuse reflection state and a specular reflection state by applying the electrical field generated by the voltage source in a first frequency and a second frequency. The second frequency is higher than the first frequency.

Abstract: A dual sided display includes a display projector. The display projector includes a lamp and a display projector image. The display projector image has pixels and the pixels produce light as light rays. The display includes a display panel that has an upper edge, a lower edge, a left edge and a right edge. The display panel is formed of a substrate that is translucent or transparent. A display panel first viewing surface is formed on the first side of the display panel. A display panel second viewing surface is formed on the second side of the display panel. The wherein the display panel first viewing surface is parallel to and opposing the display panel second viewing surface. The display panel has a thickness. A displayed image is displayed on the display panel first viewing surface and the display panel second viewing surface simultaneously.

Abstract: A projection screen and a projection system. The projection screen includes a reflection layer and a light absorption layer for absorbing light which are sequentially arranged from an incident side of projection light; the reflection layer comprises multiple microstructure units; each microstructure unit comprises a first plane and a second plane which are opposite to each other at an angle in a first direction as well as a third plane and a fourth plane which are opposite to each other at an angle in a second direction.

Abstract: An image display device includes M (M?2) ultra-short focus projectors and reflective directional screens that reflect projection light rays from the corresponding ultra-short focus projectors. The ultra-short focus projectors are arranged above or below the directional screens on which the ultra-short focus projectors are supposed to project images. Adjacent directional screens are tightly arranged. The adjacent directional screens are arranged to form an angle of less than 180 degrees.

Abstract: A reflective transparent screen exhibiting high brightness over a wide region in the screen although with a narrow viewing angle, and an image display system is provided. The reflective transparent screen has a first transparent layer 32 having an irregular surface, a reflective layer 40 formed on the irregular surface, and a second transparent layer 52 formed on the irregular surface on which the reflective layer 40 is formed so as to fill irregularities. The irregular surface of the first transparent layer 32 has a slant angle in a first direction being within a range of from ?44? to +44?, and a slant angle in a second direction perpendicular to the first direction being within a range of from ?44? to +44?.

Abstract: Provided is a projection screen, comprising a substrate (10), a total reflection layer (20), and a light absorbing layer (30) for absorbing light rays, which are sequentially arranged from a light incident side, wherein the total reflection layer (20) is provided with a plurality of trapezoidal micro-structures extending in the vertical direction of the projection screen, and the plurality of trapezoidal micro-structures is periodically arranged in the horizontal direction of the projection screen. The projection screen has the characteristics of simple structure, easy processing, low cost and high contrast.

Abstract: A virtual image display device includes an intermediate image formation unit on which a real image based on an image display light is formed. The intermediate image formation unit includes a principal surface on which a first area, a second area, and a third area are arranged in a stated order in a predetermined direction, and a reflective part. The first area is provided with a transmission-type screen on which a first display light forms an image, and the third area is provided with a reflection-type screen on which a second display light forms an image. The first display light is transmitted through the transmission-type screen, reflected by the reflective part, transmitted through the second area, and output toward a projection mirror. The second display light is reflected by the reflection-type screen and output toward the projection mirror.

Abstract: The present invention provides a transparent screen which is excellent in transparency and in which a reflection part contour at the time of not displaying an image is unlikely to be recognized. An optical sheet of the present invention includes a substrate; and a cholesteric liquid crystal layer on the substrate, in which the entire cholesteric liquid crystal layer is surrounded by an imaginary contour line, the cholesteric liquid crystal layer has a uniform region and a modulation region that is located between the uniform region and at least a part of the imaginary contour line, a shortest distance between the imaginary contour line and the uniform region is 10 mm or longer, and a reflectance of the modulation region monotonously decreases from the uniform region side toward the imaginary contour line side.

Abstract: The present invention provides a cinema screen that improves audience perception of brightness at, for example, a premium theater without additional illumination cost. The screen is produced from materials that also help mitigate speckle from laser illumination. The screen has properties and includes structures that may be tuned to the specific capabilities of the projection system, arrangement of the theater, and projector (and angle of projection, angle of viewing). Light reflected from the screen are direct toward audience members and away from walls and ceilings.

Abstract: A projection screen configured to be projected with multi-angle images includes a base membrane and a coating layer. The base membrane includes a body layer and a plurality of toothed portions connected with the body layer. A profile of each of the toothed portions includes at least one first plane and at least one second plane, where the first plane and the second plane each has a reflection angle different from each other, for providing multi-angle images of projection. The coating layer includes a reflection layer and a light-absorbing layer, where the reflection layer is disposed on the profile of each of the toothed portions; whereas the light-absorbing layer is disposed on the reflection layer, such that, as viewed from a projection position, the coating layer is disposed behind the base membrane.

Abstract: A projection screen includes a substrate, a plurality of prism structures, and a plurality of light absorbing structures. The substrate includes a first surface adjacent to the projector and a second surface away from the projector. The prism structures are disposed on the first surface, and each of the prism structures includes a first inclined surface, a second inclined surface, and a bottom surface. The first inclined surface is configured to receive and reflect projection light beams. There is a first angle between the first inclined surface and the bottom surface, and a second angle between the second inclined surface and the bottom surface. The first angle is less than or equal to the second angle. The light absorbing structures are respectively disposed on at least a portion of the second inclined surface of each of the prism structures. The light absorbing structures are configured to absorb ambient light.

Abstract: A display device receives, from an external device, information set on a settings screen that is displayed on the external device and that allows settings in ranges wider than ranges settable on a settings screen constituting a part of a projected image. The display device then changes settings in accordance with the received information. As a result, a degree of freedom in adjustment of the projected image can be increased.

Abstract: A radiation alteration device includes a continuously undulating reflective surface, wherein the shape of the continuously undulating reflective surface follows a substantially periodic pattern.

Abstract: A display device receives, from an external device, information set on a settings screen that is displayed on the external device and that allows settings in ranges wider than ranges settable on a settings screen constituting a part of a projected image. The display device then changes settings in accordance with the received information. As a result, a degree of freedom in adjustment of the projected image can be increased.

Abstract: Systems, methods, and computer-readable media are disclosed for display sheets with angled mirror surfaces. In one embodiment, an example display sheet may include a first layer and a plastic layer coupled to the first layer. The plastic layer may include a first portion with a first set of mirrors embossed on a surface of the plastic layer, where the first set of mirrors comprises a first tilt angle and a first roll angle. The plastic layer may include a second portion with a second set of mirrors embossed on the surface, where the second set of mirrors comprises a second tilt angle and a second roll angle. The display sheet may be configured to reflect light in a horizontal field of view and a vertical field of view with respect to a projector positioned to direct light at the display sheet.

Abstract: The present invention provides a cinema screen that improves audience perception of brightness at, for example, a premium theater without additional illumination cost. The screen is produced from materials that also help mitigate speckle from laser illumination. The screen has properties and includes structures that may be tuned to the specific capabilities of the projection system, arrangement of the theater, and projector (and angle of projection, angle of viewing). Light reflected from the screen are direct toward audience members and away from walls and ceilings.

Abstract: To impart antiglare properties without reducing the amount of transmitted light, a method for processing a surface of light-transmitting-glass according to the present invention comprises a blasting step of ejecting abrasive grains with particle sizes of #800 to #3000 average particle diameter 14 ?m to 4 ?m) such as WA (white alundum: high-purity alumina) having higher hardness than that of the glass onto a light-receiving surface of the glass having light-transmitting property to be processed for forming indentations and protrusions in the light-receiving surface of the glass, and after the blasting step, a hydrofluoric acid treatment step of immersing the light-receiving surface of the glass into a hydrofluoric acid solution in 10% to 20% concentration for 30 to 600 seconds thereby increase a height (amplitude) of indentations and protrusions of the surface of light-transmitting-glass.

Abstract: To impart antiglare properties without reducing the amount of transmitted light, a method for processing a surface of light-transmitting-glass according to the present invention comprises a blasting step of ejecting abrasive grains with particle sizes of #800 to #3000 (average particle diameter 14 ?m to 4 ?m) such as WA (white alundum: high-purity alumina) having higher hardness than that of the glass onto a light-receiving surface of the glass having light-transmitting property to be processed for forming indentations and protrusions in the light-receiving surface of the glass, and after the blasting step, a hydrofluoric acid treatment step of immersing the light-receiving surface of the glass into a hydrofluoric acid solution in 10% to 20% concentration for 30 to 600 seconds thereby increase a height (amplitude) of indentations and protrusions of the surface of light-transmitting-glass.

Abstract: A compositing screen includes a partially or fully transparent front screen that displays one image or video and a back screen displaying another image or video. The two images can be seen simultaneously, providing a composite image.

Abstract: A method for designing microstructures for a light shaping reflector for use in a light field display is provided. A mathematical function is derived to reflect light uniformly from an incident light beam. Curved elements shaped by the mathematical function are combined to design the microstructures. The microstructures are formed in a reflective surface to provide the light shaping reflector for use in the light field display.

Abstract: The general field of the invention is that of display systems comprising an image projector and an associated display screen, the said display system being designed to be used by an observer situated at a given location, the said display screen comprising two transparent and substantially parallel faces, the said display screen comprising, on at least one of its transparent faces, a plurality of regularly distributed light-scattering patterns. The image projector according to the invention illuminating the screen under a plurality of angles of incidence determined by the position and the size of the display screen, the said angles of incidence being centered on a mean angle of incidence, the scattering patterns comprise at least one scattering surface oriented in such a manner as to diffuse the light rays having at least the mean angle of incidence in one or more directions corresponding to the said given location of the observer. Several embodiments are described.

Abstract: Directive projection screens described herein are configured to selectively direct incident light depending upon an angle of incidence of the light. Such direction improves projection screen gain. Incident light within an acceptance cone is configured to be presented to a viewer. Light outside of the acceptance cone is directed away from the user or absorbed. As a result of this selectivity and the gain, presentation of images on the directive projection screen is improved in the presence of non-projector light sources.

Abstract: A reflection screen includes: a reflection layer provided on the back side and adapted to reflect light; and a surface shape layer provided on the reflection layer, at the image source side relative to the reflection screen, the surface shape layer having a plurality of unit optical shapes arrayed and deflecting image light toward the reflection layer side. The unit optical shape satisfies, in a section along the array direction of the unit optical shapes and orthogonal to a screen plane, the relationship of ?+2???>90°, where ? is an angle that a total reflection surface makes with a plane parallel to the screen plane, ? is an angle that an incidence surface makes with a normal direction to the screen plane, and ? is an angle that light incident on the incidence surface makes with the normal direction to the screen plane.

Abstract: In general, a “Flexible Mobile Display,” as described herein, provides various techniques for implementing a flexible display for mobile phones or other handheld or portable electronic or computing devices that, in various embodiments, is foldable and/or rollable. Consequently, the Flexible Mobile Display provides a large display in a small form factor that is user extensible. Advantageously, production of the Flexible Mobile Display uses an adaptation of various currently available production techniques and is expected to be relatively low cost to produce. Additionally, in various embodiments, the Flexible Mobile Display also includes a low cost touch or multi-touch sensing mechanism that can be easily integrated into the overall system.

Abstract: The invention realizes a screen in which the luminous intensity of scattered light emitted from the screen is made more uniform. The screen diffuses incident light that is irradiated from an incident surface and emits light from an emission surface that is opposite the incident surface. The screen is provided with: a first light-diffusing area (402) formed on the incident-surface side and provided with a mirror (403) that reflects a portion of the incident light (404), and a second light-diffusing area (401) formed on the emission-surface side and that scatters incident light that includes the light reflected from the mirror.

Abstract: An anisotropic projection screen accepts light projected at non-normal angles and redirects the light as high quality images along a viewing path that is near normal to the screen. This allows side projection of images in a manner that avoids the potential viewer obstruction of the projection path. The images may be projected onto the screen from any angle (e.g., sides, top, bottom, etc.) relative to the screen surface, and then redirected to the viewer who is viewing the screen essentially normal to the screen surface. The screen has arrays of passive elements that are oriented to collect and redirect light from one direction, while rejecting or absorbing light received from another direction.

Abstract: A directional polarization preserving front projection screen may be preferably produced using an engineered surface. Unlike statistical surfaces, engineered surfaces may provide locally specular reflections, with little to no bulk scatter, while substantially eliminating features smaller than a wavelength of illumination and thus true depolarization. Most, if not all, contours contributing to the slope probability density can be engineered to achieve a desired macroscopic gain profile. The screen may diffuse light by using locally specular reflections, in which a bias angle introduced to the gain profile of the screen may be determined by the slope of the ramps, and with resets that may be substantially hidden from projector illumination.

Abstract: A projection screen has a gold coated projection receiving surface that reflects light. The projection screen includes a support structure and an adhesive layer on top of the support structure. A fiber support is adhered to the support structure using the adhesive layer. A chalk and adhesive layer is applied on to the fiber support and a clay and adhesive layer is applied on to chalk and adhesive layer. A gold layer is applied to the clay and adhesive layer. A light or a portion thereof passes through each of the multiple ordered layers, including the gold layer, the clay and adhesive layer, the chalk and adhesive layer and reflects back a lustrous, iridescent image that has motion and depth qualities with transmuted color characteristics.

Abstract: A floating image display device includes an object, and a light reflecting optical member for reflecting displayed light from the object to a viewer. The light reflecting optical member comprises a structure in which micro mirror units each having first and second light reflecting sides are arranged in matrix. The light reflecting optical member reflects the displayed light by the first and second light reflecting sides at two times to form a mirror image. The light reflecting optical member comprises a first assembly and a second assembly. Each of the first and second assemblies is constructed by arranging a plurality of longitudinal members each having one light reflecting side such that all of the light reflecting sides are oriented in a same direction. The first assembly and the second assembly are laminated onto each other with the light reflecting sides of the first assembly and the light reflecting surfaces of the second assembly intersecting with each other.

Abstract: A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.

Abstract: Since a screen contains a diffusion agent, the diffusion agent changes polarization characteristics of picture light and degrades the stereoscopic image. Provided is a screen comprising a substrate shaped as a flat board; a reflective layer made of metal arranged on one surface of the substrate; and an exposure layer that is arranged on a surface of the reflective layer facing away from the substrate, is optically isotropic and transparent with respect to visible light, and has bumps and depressions formed in an exposed surface thereof. Also provided is a screen manufacturing method comprising providing a reflective layer on a substrate shaped as a flat board; and forming an exposure layer on a surface of the reflective layer facing away from the substrate, the exposure layer being optically isotropic and transparent with respect to visible light and having bumps and depressions formed in an exposed surface thereof.

Abstract: A projection screen includes a substrate having a projection area for a projection device to project an image onto the projection area. The projection area includes a plurality of arrayed optical regions, and each pixel of the image corresponding to the at least one optical region. Each of the optical regions includes a first optical sub-region and a second optical sub-region with different optical characteristics, such as reflective scattering, transmissive scattering, simple transmission or specular reflection. The above-mentioned projection screen with the optical characteristics of two or more, for example, can be at the same time as the front projection screen and the rear projection screen, or allows the user to watch background image behind the projection screen. A projection system including the above-mentioned projection screen is also disclosed.

Abstract: The invention realizes a screen in which the luminous intensity of scattered light emitted from the screen is made more uniform. The screen diffuses incident light that is irradiated from an incident surface and emits light from an emission surface that is opposite the incident surface. The screen is provided with: a first light-diffusing area (402) formed on the incident-surface side and provided with a mirror (403) that reflects a portion of the incident light (404), and a second light-diffusing area (401) formed on the emission-surface side and that scatters incident light that includes the light reflected from the mirror.

Abstract: A screen in which observation distance may be adjusted while maintaining image brightness and a projection system using the screen. In a light control layer of a screen, a first angle region that determines a diffusion distribution of a reflected light is different according to the screen position in a control direction in which light diffusion control is performed. Accordingly, a diffusion distribution of image light emitted from a screen surface is adjusted to be tilted downward by an upper end and upward by a lower end according to the screen position. Thus, for example, a size of a diffused angle range is maintained to be 30°, and a direction in which the image light is diffusion-emitted corresponds to an assumed position of an observer. The projection image can be observed while maintaining brightness of an image and the observation distance L can be adjusted to be short.

Abstract: A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.

Abstract: Methods and systems for displaying three-dimensional (3D) images using motion parallax are described. Images are projected onto a reflector with a rippled or faceted surface. The reflected images are viewed at a plurality of viewing locations and a different image is perceived according to the viewing location.

Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications.

Abstract: A projection screen that reduces speckle by separating reflective flakes by at least 100 micrometers. The reflective flakes are held in a binder material that is coated on a backing layer. In a laser projection system, the separation distance between reflective flakes may be at least twice the coherence length of the laser light.

Abstract: A screen which reflects light emitted from a projector includes a light diffusion layer through which light incident from a specific angular region is diffused and transmitted and through which light incident from the other angular region is transmitted straight; area pairs having a mirror forming area and a non-mirror forming area; a light transmissive layer having a back surface, on which the area pairs are disposed, and an opposite surface being bonded to a back side of the light diffusion layer; and a specular reflection film formed on a back surface of each mirror forming area. An inclination of the mirror forming area with respect to a normal line of the screen close to the projector becomes larger than the inclination of the mirror forming area far from the projector within a cross section perpendicular to the mirror forming areas inside the screen.

Abstract: A screen for a Fresnel type front projection apparatus is provided. The screen includes a reflective layer including a plurality of reflective protrusions which project toward a front of the screen; each of the plurality of reflective protrusions including a reflective surface which forwardly reflects an image light projected from a projector; and an absorbing surface which absorbs an external light. The reflective surface includes a first region on an inner side thereof on which a reflective coating is not formed and a second region on an outer side thereof on which the reflective coating is formed.

Abstract: A light field display for generating glasses-free, continuous 3D images is provided. The light field display has a horizontal retro-reflective display screen with a microstructured surface having an array of narrowly-spaced, ninety-degree microstructures, and a vertical diffuser having an array of narrowly-spaced, randomly-patterned microstructures. The vertical diffuser is joined to the horizontal retro-reflective display screen to form a light field display for use in front-projection display systems.

Abstract: A multi-projection system having a plurality of projection surfaces onto which images are projected is provided, where the plurality of projection surfaces are disposed on two or more sides not parallel to each other. The multi-projection system provides high three-dimensional images and a high degree of immersion in images and further provides multi-view images, thereby making theater customers feel like they really exist in the space described through the images.

Abstract: 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.

Abstract: The invention relates to a foldable display device, consisting of several panels arranged in parallel to each other, which are movably connected with each other. In order to create a display device that may remain locally fixed, there is provided that the display device is not configured simply foldable but in addition is provided with a housing device, which may accommodate the display device in its folded condition.

Abstract: A screen allows an image according to light incident in an oblique direction from a predetermined light exiting position to be displayed. The screen includes a screen body having a reflection surface with a plurality of lens elements formed thereon, each of the lens elements reflecting the light incident thereon, a first layer (substrate) disposed on the side of the reflection surface on which the light is incident, and a second layer (air layer) interposed between the screen body and the first layer. The first layer has a refractive index greater than the refractive index of the second layer. The first layer has an angle changing portion formed in at least part of a region through which the light incident thereon passes, the angle changing portion so formed that the thickness thereof continuously increases with distance from the light exiting position.

Abstract: A screen has an incidence plane that reflects a projected light, and, on the incidence plane, a plurality of lens elements are arranged. The plurality of lens elements have quarter-spherical surfaces, and the spherical surfaces are formed so as to face a light source of the projected light. In a portion of the spherical surface, the portion onto which the projected light is projected, a reflecting section that reflects the projected light is formed. This makes it possible to increase the area of the reflecting sections in the incidence plane and thereby increase the brightness of the screen.

Abstract: Projection screens for projection of binocular stereoscopic images include a metallic projection surface that includes a plurality of depressions configured to produce left and right viewable light fluxes in response to received left and right modulated light fluxes. The metallic projection surface can be formed by beadblasting, and multiple panels can be secured together by welding or other process. Projection surfaces can also be formed by molding or otherwise forming a conductive surface on a dielectric or other substrate.

Abstract: A screen on which an image according to light incident thereon is displayed includes a plurality of lens trains on a light-exiting surface from which the light exits, and the plurality of lens trains are provided along a plurality of virtual reference lines extending in respective predetermined directions. Each of the lens trains is formed of a plurality of lens elements from which the light exits. At least some of the plurality of lens elements that form any of the lens trains are so disposed that the lens elements are shifted from the reference line along which the lens train extends. The screen can suppress degradation of a displayed image.

Abstract: A reflective projection screen for receiving images, for a projector having short focal length of short projection distance, and particularly a reflective projection screen applicable to 2D and 3D imaging. The reflective projection screen has multi-incident angles where every reflection surface is prepared from a projection angle of the projected image and where incident angles are formed differently from each reflection surfaces so that the projection images from different angles are reflected into one direction.

Abstract: A controllable optical ring resonator, a photonic system and a method of controlling an optical ring resonator employ control electrodes periodically spaced apart along a closed loop optical path of an optical waveguide. The controllable optical ring resonator includes the optical waveguide and a plurality of the periodically spaced control electrodes. The photonic system includes an input optical waveguide segment and the controllable optical ring resonator adjacent and optically coupled to the segment. The method includes providing the plurality of periodically spaced control electrodes, providing an optical signal within the optical path, and addressing one or more of the control electrodes to interact with the optical signal within the optical path.