Abstract: The present invention provides an integrated backlight illumination assembly for an LCD display comprising, a plurality of solid state light sources for providing a point light source and a plurality of light guide films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light sources to a uniform plane of light. The invention further provides at least one polymer diffusion bar covering said solid state light sources and spacer collar rings comprising an optical spacer, collar section and an anchoring feature, wherein the spacer collar rings are located around a perimeter of the diffusion bar.

Abstract: The present invention provides an integrated backlight illumination assembly for an LCD display comprising: a plurality of solid state light sources for providing a point light source; a plurality of light guide films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light sources to a uniform plane of light, a light redirecting bar located between opposing light guide films, the light redirecting bar comprising a top capping portion and a bottom portion, the bottom portion being aligned perpendicular to the top capping portion wherein said bottom portion has at least one light redirecting feature.

Abstract: The present invention provides a light guide plate having an input surface for receiving light from a light source, a micro-patterned output surface for emitting light, and a micro-patterned bottom surface opposing to the output surface, made in steps comprising: extruding a first resin into the nip between a first pressure roller and a first patterned roller to form a first layer. Extruding a second resin into the nip between a second pressure roller and a second patterned roller to form a second layer. Laminating the first layer and the second layer at their unpatterned surfaces to form an optical sheet comprising a plurality of light guide plate patterns, and cutting and finishing the optical sheet into a plurality of double-sided light guide plates having the specified length and width dimensions.

Abstract: The present invention provides a light guide plate having an input surface for receiving light from a light source, a micro-patterned output surface for emitting light, and a micro-patterned bottom surface opposing to the output surface, made in steps comprising: extruding a first resin into the nip between a first pressure roller and a first patterned roller to form a first layer. Extruding a second resin into the nip between a second pressure roller and a second patterned roller and onto the unpatterned surface of the first layer to form a second layer. The second layer having a pattern transferred from the second patterned roller; the combined first and second layers form an optical sheet comprising a plurality of light guide plate patterns and cutting and finishing the optical sheet into a plurality of double-sided light guide plates having the specified length and width dimensions.

Abstract: The present invention provides a light guide plate having an input surface for receiving light from a light source, a micro-patterned output surface for emitting light, and a micro-patterned bottom surface opposing to the output surface. The invention provides extruding a resin into the nip between a first patterned roller and a second patterned roller at a first patterned roller surface temperature T1, a second patterned roller temperature T2, and a nip pressure P1, to form an optical sheet, the optical sheet having a first patterned surface and a second patterned surface, the first patterned surface having a pattern transferred from the first patterned roller and the second patterned surface having a pattern transferred from the second patterned roller, and cutting and finishing the said optical sheet into a plurality of double-sided light guide plates having the specified length and width dimensions.

Abstract: The present invention provides a light guide plate having an input surface for receiving light from a light source, a micro-patterned output surface for emitting light, and a micro-patterned bottom surface opposing to the output surface, made in steps comprising: extruding a resin into the nip between a patterned roller and a patterned carrier film at a nip pressure P1, to form an optical sheet, the optical sheet having a first patterned surface and a second patterned surface, the first patterned surface having a micro-pattern transferred from the patterned roller and the second patterned surface having a micro-pattern transferred from the patterned carrier film, peeling off the patterned carrier film from the optical sheet; and cutting and finishing the said optical sheet into a plurality of double-sided light guide plates having the specified length and width dimensions.

Abstract: The present invention provides a light redirecting article for redirecting light toward a target angle, the light redirecting article comprising: an input surface comprising a plurality of light redirecting structures each light redirecting structure having a near surface having two slopes, sloping away from normal in one direction as defined by a first inclination base angle ?1, a second inclination angle ?2, and a first half apex angle ?2, for accepting incident illumination over a range of incident angles and a far surface sloping away from normal, in the opposite direction relative to the input surface, as defined by a second base angle ?1 and a second half apex angle ?1. The invention further provides an output surface opposing to the input surface wherein the near and far surfaces are opposed to each other at an angle (?1+?2) that is in the range from 60 to 70 degrees, and the base angle ?1 is in the range from 82 to 87 degrees.

Abstract: The present invention provides a diffusely reflecting polarizer comprising a layer containing: a first polymer being a substantially amorphous nano-composite material and being a major phase having a birefringence of less than about 0.02, and a second polymer being a dispersed minor phase within the first polymer major phase, the major and minor phases differing in index of refraction by more than about 0.05 along a first axis and by less than about 0.

Abstract: The present invention provides a method for manufacturing a diffusely reflecting polarizer, comprising: extruding and stretching a film containing a first polymer having a birefringence of less than 0.

Abstract: The present invention provides a composite light guiding plate comprising a light guiding layer comprising an incident face for receiving light from at least one light source, a light guiding output surface that is also generally orthogonal to the incident face, a featured surface, opposite the light-guiding output surface and generally orthogonal to the input face for redirecting light through the light guiding output surface. Further, the featured surface comprises a plurality of rows of linear prismatic structures extended in a length direction that is substantially perpendicular to the incident face and having height and width dimensions of 10 to 200 microns and wherein the length-to-width aspect ratio of the linear prismatic structures is greater than 100:1 the thickness of the light guiding layer is less than 1 mm.

Abstract: The present invention provides a method for manufacturing an optical diffuser element comprising: a) inserting striping shims in at least one flow passage of a multi-manifold extrusion die; b) extruding a first layer of polymer with light scattering particles through the flow passage with the striping shim to create linear domains of varying diffusion; c) extruding a second layer of polymer with less diffusion than the linear domains of varying diffusion through the manifold without a striping shim; and d) extruding the first and second layers of polymer into a dual roller nip with microstructure engravings in at least one roller.

Abstract: A uniform light source having a substrate for providing structural and functional support to the assembly. A bottom reflector provided on the substrate. A plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. A plurality of light films and having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light; a joining clip comprising a top capping portion and a bottom support portion, the bottom support portion being aligned perpendicular to the top capping portion and having a height sufficient to house the plurality of light films. A top diffuser for diffusing the uniform plane of light. The plurality of light films has a thickness between 0.1 mm to 1.0 mm. In addition, the joining clip further comprises a light diffusion means.

Abstract: A uniform light source having a substrate for providing structural and functional support to the assembly. A bottom reflector provided on the substrate. A plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. A plurality of light films and having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light; a joining clip comprising a top capping portion and a bottom support portion, the bottom support portion being aligned perpendicular to the top capping portion and having a height sufficient to house the plurality of light films. A top diffuser for diffusing the uniform plane of light. The plurality of light films has a thickness between 0.1 mm to 1.0 mm.

Abstract: The present invention provides an optical diffuser element comprising a core layer and outer layers joined to the core layer, at least one of the outer layers comprising linear domains of varying diffusion and a continuous layer of uniform diffusion, and wherein at least one of the outer layers further comprises a microstructure pattern on its exterior surface opposite the core layer.

Abstract: Provided are a reflection sheet for a backlight unit including: a base sheet; and a flexible coating layer, formed on at least a surface of the base sheet, containing at least one flexible elastomeric bead selected from the group consisting of an elastomeric acrylic bead, an elastomeric nylon bead, and a microcapsule resin bead having a core charged with an air or an organic material, and a backlight unit for a liquid crystal display employing the reflection sheet. The reflection sheet may further include a metal reflection layer. The reflection sheet including the flexible coating layer exhibits excellent resistance to friction and impact. The reflection sheet including both the flexible coating layer and the metal reflection layer is excellent in specular reflectivity and brightness as well as in resistance to friction and impact.

Abstract: The present invention provides a diffusely-reflecting polarizer comprising: a first polymer which is amorphous and having a birefringence of less than about 0.02 and a second polymer, the first polymer being a continuous phase, and the second polymer being a disperse phase whose index of refraction differs from said continuous phase by greater than about 0.05 along a first axis and by less than about 0.05 along a second axis orthogonal to said first axis; wherein the diffuse-reflectivity of said first and second polymers taken together along at least one axis for at least one polarization state of electromagnetic radiation is at least about 50%, the diffuse transmittance of said first and second polymers taken together along at least one axis for at least one polarization state of electromagnetic radiation is at least about 50%.

Abstract: The present invention provides a multilayered integrated backlight illumination assembly for an LCD display comprising a substrate for providing structural and functional support to the assembly, a bottom reflector provided on the substrate and a plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. The invention further provides a plurality of primary light films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light, a plurality of secondary light films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light and a binding means for binding the primary and secondary light films together.

Abstract: Compositions useful for removing a polymer material from a substrate, such as an electronic device, and methods of using such compositions are provided. These compositions and methods reduce the corrosion of any underlying metal surfaces, and are particularly suited to remove polymer residues from electronic device substrates.

Abstract: The present invention relates to novel red phosphorescent compounds exhibiting high luminous efficiency, and organic electroluminescent devices comprising the same.

Abstract: An LC display comprises in order (a) a light source, (b) a transparent polymeric film bearing on the light exit surface of the film an array of close-packed convex microlenses having a distribution of sizes and oriented in one direction, whereby the light output is preferentially spread in a desired direction, and (c) an LC panel. A related process and film are also disclosed.