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| Number | Title | Issue Date |
| 8118468 | Illumination apparatus and methods Disclosed are apparatus and methods for illuminating a display. In certain embodiments, the illumination apparatus includes a light guide that receives light from a light generator along an edge of the light guide and directs the received light via light extractor f... | 02/21/2012 |
| 8070345 | Light guide plates and backlight module A light guide plate includes a body having a bottom surface and a light output surface opposite to the bottom surface. A reflector is located on the light output surface opposite to the center of the bottom surface. The reflector is a cavity concaved from the light ... | 12/06/2011 |
| 8052319 | Diffusion plate and display apparatus having the same Disclosed are a diffusion plate and a display apparatus having the same. The diffusion plate includes a base and a plurality of convex portions. The base includes a front surface and a rear surface. Each convex portion has a crescent of an ellipse formed on a front ... | 11/08/2011 |
| 8047699 | Optical lens and illuminating device incorporating the same An illuminating device includes a light source module for emitting light and an optical lens configured for adjusting the light emitted from the light source module. The optical lens includes an array of lens units. Each lens unit includes a main body, a light diver... | 11/01/2011 |
| 8011821 | Planar illumination device A planar illumination device includes at least one light source, a housing structure, at least one light guide plate, and at least one light exiting surface. The at least one light source is received in the housing structure. The housing structure includes at least ... | 09/06/2011 |
| 7819569 | Optical plate, method of manufacturing optical plate, backlight assembly and liquid crystal display device An optical plate includes a main body plate, and a plurality of lens patterns formed on a first surface of the main body plate, wherein the lens patterns are elongated in a first direction and arranged in parallel with each other in a second direction crossing the f... | 10/26/2010 |
| 7789548 | Optical diffusion module having convex and concave portions arranged in a two dimensional array An optical diffusion structure includes an optical diffusion structure comprising a plurality of convex portions and a plurality of concave portions. Each convex portion is adjacent to a plurality of concave portions and each concave portion is adjacent to a plurali... | 09/07/2010 |
| 7762705 | Surface light source device and display device using the same A surface light source device according to the invention includes a housing having an opening portion on at least one face, an LED light source held by one face of the housing opposing the opening portion, and a light guiding plate arranged at a position so as to co... | 07/27/2010 |
| 7722240 | Surface light source device and transmission display device A surface light source device and a transmission display device are provided. A surface light source device includes a light source portion, a light controlling sheet located on the output light side of the light source portion, and a light diffusing sheet located o... | 05/25/2010 |
| 7717603 | Light guide plate having multi-periodic patterns and illumination apparatus for display device using the light guide plate A light guide plate having a multi-periodic micro pattern, which can minimize chromatic dispersion, and an illumination apparatus for a display device employing the light guide plate are provided. The light guide plate includes a top surface and a micro pattern form... | 05/18/2010 |
| 7708447 | Current supply for luminescent diodes The present invention is based on a regulation circuit for making available a constant current supply on the basis of a transformer principle, in which there flows through the luminescent diodes (D1, . . . , DN) a triangular a.c. current varying periodically ... | 05/04/2010 |
| 7661867 | Spread illuminating apparatus and display device incorporating same A spread illuminating apparatus is provided which includes: a light conductor plate having a light inlet surface and two major surfaces; a light source unit disposed at the light inlet surface of the light conductor plate; and a light diffuser pattern disposed at th... | 02/16/2010 |
| 7654722 | Light guide plate The wedge-shaped light guide plate has a number of reflection structures with gaps therebetween arranged along the light reflection plane. Each reflection structure from a previous gap contains sequentially a slant surface extended away from the light emission surfa... | 02/02/2010 |
| 7543973 | Light guide plate, method of manufacturing light guide plate and backlight with the light guide plate An edge-light type light guide plate 30 is provided and has a first surface 31 and a second surface 32 that are opposed to each other, and a peripheral edge surface extending between the peripheral edges of the first and second surfaces. A part ... | 06/09/2009 |
| 7537372 | Back light device and liquid crystal display device A backlight device with improved efficiency in the utilization of light and a liquid crystal display device providing this backlight device are provided, the backlight device comprising at least a light source 2, a light guide plate 1 and a reflector | 05/26/2009 |
| 7537373 | Light guide plate and backlight module using the same A light guide plate (30) includes a light incident surface (31), a light emitting surface (32) and a bottom surface (33). The light emitting surface adjoins the light incident surface. The bottom surface faces an opposite direction of the... | 05/26/2009 |
| 7481564 | Light control film and backlight unit using the same The light control film provides improved front luminance and appropriate diffusion without the problems of interference pattern, glare. The light control film has a rough surface that, for substantially any arbitrary cross section perpendicular to a base plane of th... | 01/27/2009 |
| 7481565 | Light guide plate A light guide plate a light incidence surface, a light-emitting surface joining with the light incidence surface, a diffraction grating having a plurality of grating slots formed on the light-emitting surface, and a bottom surface on an opposite side of the light gu... | 01/27/2009 |
| 7434975 | Backlight module with brightness enhancing structures and liquid crystal display device incorporating same A liquid crystal display device 700 has a liquid crystal panel 701 and a backlight module 70 under the liquid crystal panel for providing light beams to the liquid crystal panel. The backlight module includes at least one light source 720... | 10/14/2008 |
| 7434974 | Light emitting panel assemblies Light emitting panel assembly includes a light emitting panel member received in a cavity or recess in a tray or housing. The panel member has a pattern of light extracting deformities on or in at least one surface of the panel member to cause light received from at... | 10/14/2008 |
| 7434973 | Light emitting panel assemblies Light emitting panel assemblies include a light emitting panel member having at least one light source optically coupled to a portion of an input edge of the panel member. A plurality of individual light extracting deformities on or in at least one panel surface of ... | 10/14/2008 |
| 7419294 | Night lamp A night lamp includes a main body and a light distribution unit, which allows the passage of light and is fitted onto the main body. The thickness of the light distribution unit gradually increases from the bottom to the top. The light distribution unit has an arcua... | 09/02/2008 |
| 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 |
| 7404659 | Backlight module A backlight module includes at least a light guide board, a reflector film, an optic film, and a light scarce. The light guide board has a light emitting surface on which a plurality of light: converging elements is formed. The optic film has a surface on which a pl... | 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 |
| 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 |
| 7394107 | Light guide plate, surface light source device and display A guide plate has a back face provided with a great number of micro-reflectors which has a guide portion and a conversion output portion including a valley. The conversion output portion reflects twice input light P at inner slopes, generating inner output light Q d... | 07/01/2008 |
| 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 |
| 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 |
| 7387422 | Light-guide plate, backlight assembly having the light-guide plate and display device having the backlight assembly A light-guide plate includes an incident surface receiving light, an upper surface extended from a first side of the incident surface, a lower surface opposed to the upper surface and a plurality of first prisms protruding from the upper surface and spaced apart by ... | 06/17/2008 |
| 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 |
| 7372523 | Display apparatuses having layered liquid crystal displays Display apparatuses are provided that includes a light source, a first liquid crystal display on the light source, and a second liquid crystal display on the first liquid crystal display. The first liquid crystal display is configured to allow a variable amount of l... | 05/13/2008 |
| 7364343 | Compact lighting system and display device A compact backlight system for illuminating a display device (12) has a light-emitting panel (1) with a front wall (2) and an opposed rear wall (3) and with edge surfaces (4, 5). At least one of the edge surfaces (4) is ligh... | 04/29/2008 |
| 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 |
| 7364339 | Flexible backlight unit for key of input device Provided is a backlight unit for a key of an input device. The unit includes a light guide plate and at least one light emitting unit. The light guide plate is formed of flexible transparent resin and has a light guide pattern portion in which a plurality of engrave... | 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 |
| 7360939 | Surface emitting device, backside illumination device, and liquid crystal display device At the light emission surface of a light-guiding plate, first and second grooves and second grooves are formed. Each of the first grooves has a pair of slope parts, and each slope part has an easy slope and a steep slope. The second grooves intersect the first groov... | 04/22/2008 |
| 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 |
| 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 |
