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 |
| 8182129 | Light guide unit and backlight module A light guide unit including a light guide plate and a plurality of rod lenses is provided. The light guide plate has a first surface, a second surface opposite to the first surface, and a light incident surface connecting the first surface and the second surface. T... | 05/22/2012 |
| 8052318 | Light guide member and keypad assembly using the same Disclosed are a light guide member and a keypad assembly including the same. The light guide member includes a light guide plate for guiding light propagated inside, and at least one recess formed in a direction perpendicular to a direction of guidance of light coup... | 11/08/2011 |
| 8042985 | Display apparatus of portable terminal A display apparatus of a portable terminal are provided that includes a light source for generating and outputting internal light; a display device for receiving the internal light from the light source through its one side and refracting the incident internal light... | 10/25/2011 |
| 7959342 | Waveguide member and keypad assembly using the same Disclosed are a waveguide member and a keypad assembly including the same. The waveguide member includes a waveguide for guiding light propagated inside, and at least one recess formed in a direction perpendicular to a direction of guidance of light coupled to the i... | 06/14/2011 |
| 7837376 | Image display apparatus An image display apparatus comprising a light guide plate, a light-emitting diode (LED), a first transparent substrate and a second transparent substrate is provided. Light generated from the LED is guided into the light guide plate through the edge thereof, and out... | 11/23/2010 |
| 7758230 | Spread illuminating apparatus A spread illuminating apparatus includes an LED, a transparent resin plate and a light reflecting sheet, wherein the transparent resin plate includes slits adapted to have inserted therein flap portions of the light reflecting sheet, and wherein an adhesive tape wit... | 07/20/2010 |
| 7758199 | Optical plate and backlight module using same An exemplary optical plate includes a transparent main body. The transparent main body includes a first surface and a second surface. The first surface and the second surface are on opposite sides of the main body. The first surface of transparent main body defines ... | 07/20/2010 |
| 7736046 | Optical sheet and backlight assembly having the same Provided are embodiments of an optical sheet and a backlight assembly having the optical sheet. The optical sheet can include a body, a plurality of protrusions, and a plurality of embossed portions. The body can form a substrate. One surface of the body can be prov... | 06/15/2010 |
| 7641375 | Spread illuminating apparatus A spread illuminating apparatus of side light type includes a transparent resin plate, a reflector disposed at one major surface of the transparent resin plate, and a light source disposed in a light source space formed toward one end of the transparent resin plate,... | 01/05/2010 |
| 7527412 | Surface emitting device and display apparatus including the same A surface emitting device and a display apparatus including the same. The surface emitting device includes: a light source; and a light guide plate having a light exit surface on which holographic patterns are formed, and guiding light emitted by the light source su... | 05/05/2009 |
| 7517129 | Light guide plate, backlight assembly having the same, display apparatus having the same and method of manufacturing the same A light guide plate includes a first optical member having a first light path-changing portion to separate a first light portion and a second light portion from a light, and a second optical member having a second light path-changing portion corresponding to the fir... | 04/14/2009 |
| 7470053 | Back light module having concave-down luminance distribution Several optical mechanism designs for making luminance of the outer portion of a back light module of edge lighting type to become higher than luminance of the inner portion of the back light module are disclosed in accordance with the present invention. The disclos... | 12/30/2008 |
| 7445370 | Surface light source device, illumination unit and light flux control member At least one LED emits light received by a light flux control member and subsequently emitted from an emission race thereof. Each LED is in a recess formed in the light flux control member and configured to satisfy the following conditions, for at least light emitte... | 11/04/2008 |
| 7440153 | Backlight unit for flat panel display and flat panel display apparatus having the same A backlight unit for a flat panel display and a flat panel display apparatus having the same. The backlight unit for a flat panel display includes a light source emitting light, a light guide panel having an incident surface facing the light source and totally refle... | 10/21/2008 |
| 7438459 | Optical unit, backlight assembly having the same and display device having the same An optical unit includes a base, a light-condensing member disposed on the base to condense a first portion of light that is incident onto the base and protrusion members disposed on a surface of the light-condensing member to scatter a second portion of the light t... | 10/21/2008 |
| 7428027 | Optical sheet, and backlight unit and display having plural microlenses on lens sheet with respective light transmission parts and pairs of reflection layers sandwiching the light transmission parts One embodiment of the present invention is an optical sheet including a lens sheet having a plurality of microlenses arranged on a front surface thereof and a plurality of projections located at a back side thereof, a projection being located between light transmiss... | 09/23/2008 |
| 7425089 | Lighting device and image display unit and light guide provided with it An illumination device according to the present invention includes a light source; and a lightguide element including an incidence surface for receiving light emitted from the light source and an outgoing surface from which the light incident from the incidence surf... | 09/16/2008 |
| 7413334 | Backlight and liquid crystal display device A plurality of LEDs are arrayed in a single row between the opposing end faces of a pair of first and second light guide plates that are disposed so that the end faces thereof face each other. A reflective sheet is disposed on the lower surfaces of the pair of first... | 08/19/2008 |
| 7404661 | Light emitting panel assemblies Light emitting panel assemblies include a light guide having a pattern of individual deformities of well defined shape that are projections or depressions on or in at least one side of the light guide. At least some of the deformities are quite small in relation to ... | 07/29/2008 |
| 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 |
| 7393130 | Optical substrate, manufacturing method thereof, planar lighting device and electrooptical device An optical substrate includes an exit face through which a light entered from an incident face is emitted, a lens forming region provided on the exit face and in which a plurality of microlenses are formed, and a non-lens forming region provided in an area other tha... | 07/01/2008 |
| 7393132 | Backlight module with nano-material light coupling layer A backlight module (10) includes a flat cold cathode fluorescent lamp (CCFL) (30) having an output interface, and a light guiding plate (20). The output interface has a nano-material layer coated thereon. The light guiding plate includes an inci... | 07/01/2008 |
| 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 |
| 7370999 | Light guide plate and surface light source using same An exemplary light guide plate (500) includes: a light incident portion (51) for receiving a light; a light reflecting portion (52) for reflecting the light input through the light incident portion; and a light emitting portion (53) oppos... | 05/13/2008 |
| 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 |
| 7364340 | Backlight unit for flat panel display and flat panel display apparatus having the same A backlight unit for a flat panel display and a flat panel display apparatus having the same. The backlight unit for a flat panel display displaying a predetermined image includes: a light source which emits light; a light guide panel having an incident surface faci... | 04/29/2008 |
| 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 |
| 7354185 | Light guiding plate and backlight module using the same A back light module (3) includes a light guide plate (31) and a light source (30). The light guide plate includes a light incident surface (311), a light emitting surface (313), and a bottom surface (312) opposite to the lig... | 04/08/2008 |
| 7339491 | Light-emitting diode backlight module An LED backlight module includes a substrate. An LED array, composed of a plurality of red, blue and green lamp LEDs, is mounted on the substrate. A light-mixing chamber is mounted on the substrate and is used to seal the LED array inside. A diffusion sheet is secur... | 03/04/2008 |
| 7325958 | Light guiding plate and backlight module employing the same A light guiding plate (120) includes a light incident surface (121), a light emitting surface (122) adjacent to the light incident surface, and a bottom surface (123) opposite to the light emitting surface. The light incident surface incl... | 02/05/2008 |
| 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 |
| 7322733 | Light guide plate having micro-reflectors A light guide plate having micro-reflectors is to increase luminance of the light guide plate by changing light route. The light guide plate includes an incidence plane, an illuminating plane, and a bottom. Each of the micro-reflectors is disposed at the bottom and ... | 01/29/2008 |
| 7314303 | Assistant light source and front-light To provide an assistant light source and a front-light emitting light to the light guide plate efficiently. A sectional shape of prism 14a in the center of light stick is isosceles triangle having a tip angle (T°) of 100° and a tilt angle (a1 | 01/01/2008 |
| 7311420 | Opto-electronic package, and methods and systems for making and using same In one embodiment, an opto-electronic package includes a substrate, a cavity, mounting pads and transverse walls interspersed along the cavity, pads separated by transverse walls, and transverse walls being lower than cavity-defining walls; and LED dice mounted to t... | 12/25/2007 |
| 7311433 | Backlight module for an LCD (Liquid Crystal Display) system A light guide for an LCD system has a light incident side, and is formed with a plurality of pattern structures. Each of the pattern structures has a pair of diagonally-disposed first points defining a first length therebetween, and a pair of diagonally-disposed sec... | 12/25/2007 |
| 7309153 | Surface light source device and display Light guide plate 4 is provided with an emission-directivity-giving-means (such as projection rows on a back face) to modify directivity of emission from emission face 10. L light control member 11 disposed on emission face 10 is provided... | 12/18/2007 |
| 7294803 | Key pad and keypad assembly A keypad includes a light guide panel, the interior of which light propagates through; at least one key button positioned on the upper surface of the light guide panel; and at least one reflective pattern fixedly positioned with respect to the light guide panel to r... | 11/13/2007 |
| 7275853 | Illuminating device, light guide body and liquid crystal display device An illuminating device is disclosed., which is high brightness and able to reduce leaking light and preferably made thin. A front light has a light guide plate, a bar light guide body and a light emitting element. A prism shape for reflecting propagating light withi... | 10/02/2007 |
| 7275850 | Backlight unit An edge light type backlight unit having an improved light-reception portion. The backlight unit includes one or more light sources that emit light, a light guide panel that guides the propagation of light incident on one side edge thereof, one or more light-recepti... | 10/02/2007 |
| 7273311 | Light guide plate and backlight module using the same A light guide plate (30) includes an emitting surface (32) having a plurality of V-shaped prisms (33) thereat, a bottom surface (34) opposite to the emitting surface, the bottom surface having a plurality of arc-shaped grooves (35)... | 09/25/2007 |
