Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 8398292 | Optical unit and light guide plate and ink thereof The present invention relates to an optical unit and light guide plate and ink thereof. The ink includes a base resin and a plurality of fine particles. The base resin has a first refractive index. The fine particles have a second refractive index and are dispersed ... | 03/19/2013 |
| 8100575 | One-way see-through illumination system A one-way see-through illumination system is constructed from a light guide panel, a front-illuminable image film, and a light injector. The light injector injects light into the light guide panel at a suitable angle for total internal reflection of the injected lig... | 01/24/2012 |
| 8070346 | Illumination device and liquid crystal display device An illumination device which can be used as a front light or a back light by improving brightness unevenness in the vicinity of an LED without dropping entire brightness and a liquid crystal display device using the same. This illumination device 10 has a lig... | 12/06/2011 |
| 7914197 | Light guide member, flat light source device, and display device A light guide member, a flat light source device and a display device using the light guide member. A plurality of luminescent devices that emit light of violet to blue color are arrayed on a substrate, and a light guide member is disposed upward thereof that includ... | 03/29/2011 |
| 7905651 | Diffusively reflective film, method of manufacturing the same, light guiding module, backlight assembly, and liquid crystal display apparatus having the same A diffusively reflective film includes a base film, a light reflection layer and a light diffusion layer. The base film is flexible. The light reflection layer is disposed on the base film. The light reflection film reflects a first light. The light diffusion layer ... | 03/15/2011 |
| 7891856 | Optical film The subject invention provides an optical film comprising a transparent substrate and a structured surface layer, wherein the structured layer is positioned on the upper surface of the substrate and comprises a plurality of non-parallel, adjacent columnar structures... | 02/22/2011 |
| 7883257 | Optical film and display device having the same An optical film and a display device having the same are disclosed. The display device comprises a display panel including a plurality of subpixels and an optical film disposed at one side of the display panel, the optical film includes a base film and a plurality o... | 02/08/2011 |
| 7866871 | Light enhancing structures with a plurality of arrays of elongate features Various embodiments comprise light recycling films comprising an array of parallel ridges and grooves that form prisms that selectively reflect or transmit light. In some embodiments, the light recycling film may be used in displays that include spatial light modula... | 01/11/2011 |
| 7850359 | Optical film of a display, method for producing the same and said display An optical film of a display and a method for producing the same are provided. The display includes a light source and an optical film. The light source provides the first light. The optical film includes at least one coating layer. The coating layer has a first sur... | 12/14/2010 |
| 7547130 | Light guide plate and backlight unit using the same A light guide plate having a light-emitting surface with reduced luminance unevenness and a backlight unit using the light guide plate are provided. The light guide plate has a light entrance surface with two opposite lateral edges and a pair of widthwise edges exte... | 06/16/2009 |
| 7543974 | Light redirecting film having variable thickness A display comprises a light source and a light redirecting polymeric film containing a structured surface on at least one side of the film and bearing a polymeric coating over at least part of the structured surface wherein the coating exhibits a variable thickness.... | 06/09/2009 |
| 7530726 | Light redirecting film having discontinuous coating The invention relates to a display comprising a light source and a light redirecting polymeric film containing a structured surface on at least one side of the film and bearing a discontinuous population of adherent beads bonded to the structured surface. ... | 05/12/2009 |
| 7520654 | Adhesive stacking for multiple optical films In a new packaging method for light management films in displays, such as liquid crystal displays, a stack of two or more optical films is held together before insertion into the display frame. The stack includes at least two of the films that are adhered together u... | 04/21/2009 |
| 7513674 | See-through one-way light-emitting light guide A display system combines the principles of total internal reflection and halftone reflection. The display system includes a light guide, a light-reflecting see-through image disposed on the surface of the light guide, and a light-blocking see-through layer disposed... | 04/07/2009 |
| 7452120 | Illumination apparatus and film An illumination apparatus comprises: (a) at least one light source; (b) a light guide for accepting light from the at least one light source and for guiding the light using total internal reflection, the light guid... | 11/18/2008 |
| 7416309 | Optical film having a surface with rounded structures The present disclosure is directed to optical devices including a light source and an optical film having a first surface disposed to receive light from the light source and a second surface facing away from the light source. The second surface includes a two-dimens... | 08/26/2008 |
| 7413336 | Adhesive stacking for multiple optical films In a new packaging method for light management films in displays, such as liquid crystal displays, a stack of two or more optical films is held together before insertion into the display frame. The stack includes at least two of the films that are adhered together u... | 08/19/2008 |
| 7400805 | Compact light collection system and method A light collection system includes at least one light source, a light tunnel having reflective walls and a collimating plate at the light output end of the tunnel. The collimating plate includes an optical element array. The element array receives the light emitted ... | 07/15/2008 |
| 7397605 | Structure of optic film An optic film has a surface on which a plurality of rib-like micro light guides is formed. Each light guide includes a plurality of ridges, which are of different height and shows variation of height. Either a high ridge or a low ridge of the light guide is made a c... | 07/08/2008 |
| 7397984 | Light guide screen louver device In a particular embodiment, the louver device includes a transparent layer of material having a first surface and, parallel thereto, a second surface. A plurality of shaped louver members are disposed within the transparent layer of material. The shaped louver membe... | 07/08/2008 |
| 7393131 | Surface light source having light guide plate with prisms A surface light source (4) includes a light guide plate (2) and a light source (5). The light guide plate has an incident surface (21) and an emitting surface (22). The light source is adjacent to the incident surface of the light ... | 07/01/2008 |
| 7387423 | Light guide plate with transmittance enhancement layer and backlight system using same A backlight system has a light guide plate. The light guide plate includes a transparent plate having a light incidence surface and an opposite light emitting surface, and a light transmittance enhancement layer. The light transmittance enhancement layer is provided... | 06/17/2008 |
| 7380971 | Backlight module A backlight module includes a light guide plate having an incident surface, an emitting surface adjacent to the incident surface, and a reflective surface opposite to the emitting surface. At least one light source is disposed adjacent the incident surface. The ligh... | 06/03/2008 |
| 7378686 | Light emitting diode and side emitting lens The invention is an illumination system that incorporates a light emitting diode and a side-emitting light-recycling lens. The side-emitting light-recycling lens recycles part of the light internally generated by a light emitting diode back to the light emitting dio... | 05/27/2008 |
| 7367705 | Long curved wedges in an optical film The invention relates to a light redirecting polymeric film comprising a plurality of polymeric individual optical elements wherein the elements comprise curved wedge shaped features in the plane of the film, having a length in the range of 800 to 4000 micrometers. | 05/06/2008 |
| 7364342 | Light redirecting films pattern of variable optical elements Light redirecting films and film systems include a thin optically transparent substrate having a pattern of individual optical elements of well defined shape on or in the substrate. At least some of the optical elements may vary at different locations on the substra... | 04/29/2008 |
| 7364341 | Light redirecting films including non-interlockable optical elements The light redirecting films include a thin optically transparent substrate having a pattern of non-interlocking individual optical elements oriented and placed to produce a desired surface coverage of at least one of the surfaces of the transparent substrate of the ... | 04/29/2008 |
| 7364338 | Systems for providing backlight module with stacked light source A system for providing a backlight module has a light guide plate and at least a light source set positioned adjacent to the incident surface. The light source set contains a plurality of light sources stacking along a direction parallel with the incident surface of... | 04/29/2008 |
| 7357552 | Surface light source device and display An incidence face is formed at a corner portion of a light guide plate having a generally rectangular emission face, being supplied with primary light form a primary light source. The incidence face has a configuration which obtained by applying undulation-modificat... | 04/15/2008 |
| 7358929 | Tile lighting methods and systems A tile lighting system is provided in which an interior space of a tile is lit by LEDs, such as in a grid or edge-lit formation, and a light diffusing panel is disposed over the interior space. The tile lighting system can be combined with others to tile any surface... | 04/15/2008 |
| 7357548 | Light-guiding system comprising a number of light transmission rods A light-guiding system comprising a plate-like light-guiding member (1) provided with a lateral surface for coupling in light into said light-guiding member (1). The ends of a number of light transmission rods (6) are connected to said lateral s... | 04/15/2008 |
| 7356211 | Lighting system A stereoscopic display device is provided. The stereoscopic display device includes an optical waveguide member and a first main surface and a second main surface. The first and second main surfaces face each other. A first light path changing member is provided on ... | 04/08/2008 |
| 7347609 | Direct backlight modules Direct backlight modules are provided. A direct backlight module includes a liquid crystal panel, a plurality of light tubes disposed below the liquid crystal panel, a reflecting plate disposed below the light tubes, and a transparent plate disposed between the ligh... | 03/25/2008 |
| 7349043 | Light source, display device, portable terminal device, and ray direction switching element A light source is provided including, a backlight that emits light in a planar shape, a ray direction regulating element that regulates a direction of light made incident from the backlight and emits the light and in which a transparent area for transmitting light a... | 03/25/2008 |
| 7341358 | Illumination apparatus An illumination apparatus is disclosed in the invention. The illumination apparatus includes a cavity with a diffusion surface, a light source, a light-spreading device, and at least one optically-conditioning surface with a wavelike array formed thereon. The light-... | 03/11/2008 |
| 7342719 | Projection screen with reduced speckle The projection screen assembly minimizes speckle while preserving high ambient viewability. The screen assembly, having a light-source side and a viewing side, includes a screen layer, a polarizing contrast filter, and a speckle contrast reducing layer. The screen l... | 03/11/2008 |
| 7338197 | Ultra-thin backlight A flat illumination device such as may be used in a liquid crystal display device, includes a light guiding plate having a front and a rear surface and at least one illumination window. The device further includes a light source that is coupled to an edge of the lig... | 03/04/2008 |
| 7330315 | Light-redirecting optical structures A plurality of microstructures is provided, with each microstructure having at least a first side and at least a second side terminating at a peak. At least some of the peaks can include an elevated portion to space the peaks away from adjacent optical sheets, surfa... | 02/12/2008 |
| 7325959 | Light guide plate A light guide plate includes an incidence surface, an emission surface, a bottom surface opposite to the emission surface, and a plurality of dots distributed on the bottom surface. The emission surface and the bottom surface are adjoining to the incidence surface. ... | 02/05/2008 |
| 7320538 | Optical film having a structured surface with concave pyramid-shaped structures Optical films are disclosed, which have a structured surface including a plurality of concave pyramid-shaped structures, each structure having a base including at least two first sides and at least two second sides. In addition, optical devices are disclosed that in... | 01/22/2008 |
