Abstract: Self illuminated back and front lit signage for a printed graphic. The signage includes a turning film having a structured surface for redirecting light, a diffuser providing for diffusion, and a printed graphic. The turning film receives light from an ambient light source and directs the light via the structured surface toward a viewer of the graphic in order to passively illuminate the signage.

Abstract: Optical articles that include adhesive lightguides having resonant circuits and one or more light sources are described. More particularly, optical articles having resonant circuits that, upon a triggering event, cause the one or more light source to emit light into the adhesive lightguide such that light is transported within the lightguide by total internal reflection are described. Additionally, applications and embodiments that include such optical articles are described.

Abstract: Self illuminated back and front lit shaped and two-sided signage. The signage includes a turning film having a structured surface for redirecting light and a diffuser providing for diffusion. The shape of the signage from a viewer's perspective provides the content, such as letters, to be conveyed to the viewer. Two-sided signage includes two signs arranged back-to-back, each including a turning film having a structured surface for redirecting light, a diffuser providing for diffusion, and a printed graphic. In the two-sided signage, the turning films receive light from an ambient light source and direct the light via the structured surfaces toward viewers of the two graphics in order to passively illuminate the signage. The two-sided signage can be shaped to provide content via the shape and graphics.

Abstract: Integral imaging 3D films for use with a display panel. The films include a flexible transmissive substrate having a first surface on a viewer side and a second surface for placement on the display panel. Convex lenses are located on the first surface. The second surface is planar for a plano-convex design or has concave lenses registered with the convex lenses for a convex-concave compound lens design. In the plano-convex design, the lens focus is in front of or behind the pixels. In the convex-concave design, the convex and concave lenses combined focus is in front of, at, or behind the pixels. In use the 3D films produce 3D images with motion parallax.

Abstract: Self illuminated back and front lit signage for a printed graphic. The signage includes a turning film having a structured surface for redirecting light, a diffuser providing for diffusion, and a printed graphic. The turning film receives light from an ambient light source and directs the light via the structured surface toward a viewer of the graphic in order to passively illuminate the signage.

Abstract: A backlight includes a light guide and a first and second light source adapted for independent operation and arranged to inject a first and second light beam, respectively, into the light guide through different portions of the light injection surface. Each light source includes a lamp and a concave reflector to partially collimate light from the lamp. One major surface of the light guide includes prismatic structures that are parallel to a first axis. Another major surface of the light guide includes lenticular structures that are parallel to each other but perpendicular to the prismatic structures. The lenticular structures limit spatial spreading for light that remains in the light guide. Each light source cooperates with the light guide to provide light that is substantially laterally confined to a transverse band of the light guide, even though the light guide contains no gaps that define slats to accomplish such confinement.

Abstract: Integral imaging 3D films for use with a display panel. The films include a flexible transmissive substrate having a first surface on a viewer side and a second surface for placement on the display panel. Convex lenses are located on the first surface. The second surface is planar for a plano-convex design or has concave lenses registered with the convex lenses for a convex-concave compound lens design. In the plano-convex design, the lens focus is in front of or behind the pixels. In the convex-concave design, the convex and concave lenses combined focus is in front of, at, or behind the pixels. In use the 3D films produce 3D images with motion parallax.

Abstract: An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a viscoelastic lightguide optically coupled to a light source, and a nanovoided polymeric layer is used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic lightguide may be a pressure sensitive adhesive.

Abstract: An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a lightguide optically coupled to a light source, and a viscoelastic layer and a nanovoided polymeric layer are used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic layer may be a pressure sensitive adhesive.

Abstract: Stereoscopic displays and backlights include a light guide with individually addressable light sources disposed at opposite edges of the light guide, and a light redirecting film disposed in front of the light guide. Light from one light source is emitted from the backlight as a right eye elongated light beam, and light from the opposite light source is emitted as a left eye elongated light beam. Structured surface features, e.g. linear prismatic or linear lenticular features, on the light guide and/or the light redirecting film are oriented such that the elongated light beams are offset from an optical axis of the backlight. Moreover, each of the elongated light beams is oriented to intersect both a first observation plane and a second observation plane perpendicular to the first observation plane, the first observation plane defined by the optical axis and an in-plane axis along which the light sources are disposed.

Abstract: A backlight includes a light guide and a first and second light source adapted for independent operation and arranged to inject a first and second light beam, respectively, into the light guide through different portions of the light injection surface. Each light source includes a lamp and a concave reflector to partially collimate light from the lamp. One major surface of the light guide includes prismatic structures that are parallel to a first axis. Another major surface of the light guide includes lenticular structures that are parallel to each other but perpendicular to the prismatic structures. The lenticular structures limit spatial spreading for light that remains in the light guide. Each light source cooperates with the light guide to provide light that is substantially laterally confined to a transverse band of the light guide, even though the light guide contains no gaps that define slats to accomplish such confinement.