Patent application number | Description | Published |
20080218858 | Polarizing turning film with reduced color separation - The disclosure describes a turning film and a backlight containing the film. The turning film comprises a light entry and a light exit surface comprising first prismatic structures on the exit surface and second prismatic structures or lenticular structures on the light entry surface, wherein
| 09-11-2008 |
20080219024 | Backlight unit with reduced color separation including a polarizing turning film - A backlight unit contains a light source, a light guiding plate, and a turning film having a light entry and a light exit surface comprising first prismatic structures on the exit surface, wherein
| 09-11-2008 |
20080285307 | LCD DISPLAYS WITH LIGHT REDIRECTION - A backlight apparatus for directing light toward a display panel and the resulting display device comprises a solid lightguide comprising opposite TIR surfaces, containing a desired pattern of light redirecting surface features located between the TIR surfaces and interrupting one of the TIR surfaces, the features having a refractive index differing from that of the solid material of the light guide. Such an apparatus provides a more even light distribution to the display. | 11-20-2008 |
20080285310 | ELONGATED ILLUMINATORS CONFIGURATION FOR LCD DISPLAYS - A solid waveguide comprises opposite TIR surfaces further comprising: | 11-20-2008 |
20080291668 | Mini lightbar illuminators for LCE displays - A backlight for a display comprises a reflector box containing reflective areas and aperture areas and mini lightbars located in a region below the reflector box and arranged to provide light through the apertures. | 11-27-2008 |
20090122227 | Integrated backlight illumination assembly - The present invention provides an 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. Further, the invention provides a plurality of light films with a thickness between 10 microns to 3mm 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 and a top diffuser for diffusing the uniform plane of light, and wherein the plurality of light films has a thickness between 0.1 mm to 1.0 mm and a bending stiffness between 50 to 1200 millinewtons. | 05-14-2009 |
20090180282 | Multilayered integrated backlight illumination assembly - 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. Further, the invention provides a top diffuser for diffusing the uniform plane of light and wherein the plurality of light films has a thickness between 0.1 mm to 1.0 mm and a bending stiffness between 50 to 1200 millinewtons. | 07-16-2009 |
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 |
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 |
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 |
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 |