| SKC Haas Display Films Co., Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110242851 | DOUBLE-SIDED LIGHT GUIDE PLATE MANUFACTURED WITH PATTERNED ROLLERS - 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 T | 10-06-2011 |
| 20110242850 | DOUBLE-SIDED LIGHT GUIDE PLATE MANUFACTURED WITH MICRO-PATTERNED CARRIER - 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 P | 10-06-2011 |
| 20110242849 | THIN DOUBLE-SIDED LIGHT GUIDE PLATE - 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. | 10-06-2011 |
| 20110242847 | LAMINATED DOUBLE-SIDED LIGHT GUIDE PLATE - 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. | 10-06-2011 |
| 20110242845 | LIGHT REDIRECTING BAR WITH DIFFUSION FEATURES - 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. | 10-06-2011 |
| 20110242838 | DIFFUSION BAR WITH SPACER COLLAR RING - 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. | 10-06-2011 |
| 20110116167 | Diffusely-reflecting polarizer having substantially amorphous nano-composite major phase - 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 0.05 along a second axis orthogonal to said first axis; wherein the major phase comprises a continuous amorphous phase and at least one additional phase dispersed into domains within said continuous amorphous phase, the domains having characteristic dimensions smaller than the wavelength of light such that these domains do not contribute to scattering of light passing through the first polymer; 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%. | 05-19-2011 |
| 20110115109 | Method of manufacturing a reflective polarizer - 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 0.02, with said first polymer being a substantially amorphous nano-composite material, and a second polymer, the first polymer being a major phase, and the second polymer being a dispersed minor phase, wherein said first and second polymers taken together along a first axis for one polarization state of electromagnetic radiation exhibit a diffuse reflectivity R | 05-19-2011 |
| 20110095442 | THIN LIGHT GUIDING PLATE AND METHODS OF MANUFACTURING - 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. Further, the plate is formed from polymeric materials comprising polyesters, amorphous polyesters, polyarylates, polycarbonates, polyamides, polyether-amides, polyamide-imides, polyimides, polyetherimides, cyclic olefin polymers, impact-modified polymethacrylates, polyacrylates, polyacrylonitrile, polystyrenes, polyethers, cellulosics, sulfur-containing polymers and blends or alloys of two or more polymers or copolymers thereof. Additionally, the plate comprises a light extraction layer comprising an input surface having a plurality of protruding light extraction features that have tips that are bonded to the light-guiding output surface of the light guiding layer and provide optical contact between the light guiding and light extraction layers and an illumination output surface for providing light output from the composite illumination plate. Further, the thickness of the light extraction layer is less than 1 mm and wherein one or more channels of air or other gas are sandwiched between the light guiding layer and the light extraction layer. | 04-28-2011 |
| 20110026274 | Backlight illumination assembly having a joining clip with diffusion means - 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. | 02-03-2011 |
| 20110026273 | Optical coupling device for light guiding film - 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. | 02-03-2011 |
| 20110025948 | Patterned volume diffuser elements - 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. | 02-03-2011 |
| 20110024928 | Patterned volume diffuser elements - 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. | 02-03-2011 |
| 20100110342 | Novel turning film for liquid crystal displays - 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 has (i) a near surface having two slopes, sloping away from normal in one direction as defined by a first inclination base angle β | 05-06-2010 |
| 20100075069 | Multifunction light redirecting films - The present invention provides a multifunction light redirecting film for a liquid crystal display comprising at least one base thermoplastic polymer optical layer having a top surface with a plurality of optical features. The film further provides at least one co-extrudable surface thermoplastic polymer optical layer adjacent the base thermoplastic polymer optical layer, wherein the at least one co-extrudable surface has a pencil hardness of at least 1 H. | 03-25-2010 |
