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| Number | Title | Issue Date |
| 8162501 | Display device having high brightness uniformity at positions close to light source A display device including a plurality of light sources spaced apart from one another, a refracting plate disposed over the plurality of light sources, and first and second refracting surfaces formed at both surfaces of the refracting plate to allow light emitted fr... | 04/24/2012 |
| 8042975 | Plano-fresnel LED lens and LED assembly thereof A plano-Fresnel LED lens and a LED assembly thereof are revealed. The lens is a Fresnel lens whose optical surface on the forward side thereof is a plano surface having saw teeth with vertical taper (draft with vertical shape) so that the lens in the LED assembly co... | 10/25/2011 |
| 7914179 | Optical plate with V-shaped protrusions on both sides and backlight module using the same An optical plate includes a first surface and a second surface opposite to the first surface. A plurality of elongated, arc-shaped depressions is defined in the first surface. A plurality of first elongated, V-shaped protrusions aligned in a first direction and a pl... | 03/29/2011 |
| 7871172 | Diffusion plate and backlight module using same A light diffusion plate includes a first surface and an opposite second surface. The first surface defines a plurality of first elongated arc-shaped grooves and a plurality of second elongated arc-shaped grooves therein. A width of the first elongated arc-shaped gro... | 01/18/2011 |
| 7819559 | Light-source cover and portable device therewith A light-source cover for controlling transmission of light from a light source mounted in a portable device is made of an optical material. The front surface of the light-source cover has a knurl finish composed of linear grooves and the back surface thereof has a s... | 10/26/2010 |
| 7789538 | Back-lit displays with high illumination uniformity A directly illuminated display unit has a display panel and one or more light sources disposed behind the display panel. A diffuser is disposed between the one or more light sources and the display panel, and a light diverting layer is disposed between the one or mo... | 09/07/2010 |
| 7753564 | Lampshade and illumination lamp having the same An illumination lamp (40) includes at least one solid-state lighting member (41) for radiating light, and a lampshade (10) being arranged corresponding to the at least one solid-state lighting member. The lampshade includes an array of lenses ( | 07/13/2010 |
| 7628514 | Prism sheet and backlight module using the same An exemplary prism sheet includes a transparent main body. The main body includes a first surface and a second surface. The first surface is opposite to the second surface. A plurality of elongated arc-shaped depressions are defined in the first surface. A plurality... | 12/08/2009 |
| 7513656 | Optical lens system, backlight assembly and display device A display device includes an optical module, a receiving container and a display panel. The optical module includes a substrate, point light sources and an optical lens. The point light sources are disposed on the substrate, each of which generates light using power... | 04/07/2009 |
| 7445361 | Prism sheet and backlight module using the same An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface opposite to the first surface, a plurality of elongated waved protrusions formed in the first surface, and a plurality of micro-depressions formed in ... | 11/04/2008 |
| 7438445 | Side-emitting light-emitting element and packaging lens thereof A side-emitting light-emitting element and a packaging lens thereof, wherein the packaging lens comprises an incident surface, a reflective surface, a first refractive surface, and a second refractive surface. The first refractive surface has zigzag surfaces. After ... | 10/21/2008 |
| 7422347 | Planar light source and planar lighting apparatus A planar light source comprises at least one point light source disposed on a supporting substrate, and a cylindrical lens that covers the light emitting observation side of the point light source, wherein the cylindrical lens has a concave lens function in the dire... | 09/09/2008 |
| 7377680 | Light spreading device and backlight module utilizing the same A light spreading device and a backlight module utilizing the same. The backlight module includes a light guide, a plurality of point lights, and a plurality of light spreading devices. The light guide includes an entrance surface. The point lights are disposed near... | 05/27/2008 |
| 7370994 | Collimating lens for LED lamp A collimating lens includes a first end face with an LED accommodation hole for accommodating an LED lamp, a second end face, which is disposed opposite to the first end face and has an area greater than the first end face, and a sidewall, which is connected between... | 05/13/2008 |
| 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 |
| 7350930 | Illuminating unit with reflective collimator and image projection system including the same An illuminating unit includes a reflector including a parabolic reflecting surface and an incident portion and an exit portion intersecting with each other a light source to emit a beam onto the reflecting surface through the incident portion, a light source deviati... | 04/01/2008 |
| 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 |
| 7344282 | Optical sheet and backlight assembly of liquid crystal display with the same An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof. ... | 03/18/2008 |
| 7341784 | Light management film and its preparation and use A light management film includes a first layer with a thermoplastic resin and a particular phosphonium sulfonate salt, and a second layer formed from a curable composition and having a refractive index of at least 1.5. The light management film exhibits reduced stat... | 03/11/2008 |
| 7339664 | System and method for inspecting a light-management film and method of making the light-management film A method of inspecting a light-management film comprises reflecting light from an overhead light source off a first side of the light-management film and examining the light-management film for defects; directing transmission light from a backlight source through a ... | 03/04/2008 |
| 7334934 | Light guide device and a backlight module using the same A light guide device includes a main body and a plurality of parallel elongate first V-shaped microstructures. The main body has an incident surface; an emitting surface adjoining the incident surface; and a reflecting surface opposite to the emitting surface. The f... | 02/26/2008 |
| 7329010 | Rear projection apparatus A housing is mounted with a screen. The housing accommodates a projector unit and a mirror. Image light emitted from the projector unit is projected to the rear of a translucent screen via the mirror. The projector unit includes a unit body, which accommodates liqui... | 02/12/2008 |
| 7325952 | Lamp and motorcycle provided with the lamp A tail light (lamp) for a motorcycle with improved visibility and outward appearance includes a bulb, a reflector that reflects light from the bulb in a predetermined direction, and a lens that transmits the reflected light. Flux density is varied about a set point,... | 02/05/2008 |
| 7300185 | Quadrilateral symmetrical light source A reflector for focusing light emitted from a light source in a generally planar direction is disclosed. The reflector is matched with the light source that is preferably a light emitting diode (LED) mounted on a substrate. The reflector is mounted over the LED on t... | 11/27/2007 |
| 7284884 | Surface light source device, image display and light control plate Primary light is directed to a light path control plate from at least one point-like light source. The light path control plate has an inner face on which projection-like transmission-reflection portions and curved-for-refraction portions are alternately formed alon... | 10/23/2007 |
| 7270454 | Vehicular lamp A vehicular lamp in which a luminous flux utilization factor is enhanced by a structure of a light-emitting element that is disposed to face forward with respect to a vehicular lamp and covered from its front side with a translucent member. The circumferential regio... | 09/18/2007 |
| 7270448 | Light fixture having at least two LEDs directed toward curved surface of reflector In a preferred embodiment, an apparatus, including: a light fixture having a concave reflector disposed on a rear surface thereof; and at least one LED directed at a concavity of the concave reflector. ... | 09/18/2007 |
| 7270447 | Uniform luminance and color mixing lens for LED device A lens for an LED having a lens body providing total internal reflection of light emitted by the LED from a first emission point disposed proximate a first junction of the lens body and centerplane. The lens includes an arcuate light-diffusing edge for diffusing lig... | 09/18/2007 |
| 7269327 | Brightness enhancement film having a reinforcing structure A brightness enhancement film includes a light-refracting microstructure layer, a substrate and a reinforcing layer. The substrate has a first surface and a second surface opposite thereto. The light-refracting microstructure layer is arranged on the first surface o... | 09/11/2007 |
| 7269328 | Brightness enhancement film having a light-guiding structure A brightness enhancement film having a light-guiding structure includes a substrate, which has a light-guiding layer and a plurality of light-refracting microstructures. The substrate has a light incident surface and a light emission surface opposite thereto. The li... | 09/11/2007 |
| 7261435 | Light fixture and lens assembly for same A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such... | 08/28/2007 |
| 7262916 | Backlight module and brightness enhancement film thereof A backlight module includes a light source, a light guide disposed on one side of the light source, a reflector disposed under the light guide, a lower diffuser disposed on the light guide, and a brightness enhancement film, which is disposed on the lower diffuser a... | 08/28/2007 |
| 7256935 | Light transmission sheet, rear projection type projector, light transmission sheet manufacturing device, program, and computer-readable medium To eliminate ghosts caused by retroreflection of projected light and obtain high resolution images. Fine irregularities 5 are randomly formed on the plane of incidence 2a of a Fresnel lens sheet 2 with little space between them. Th... | 08/14/2007 |
| 7251079 | Brightness enhancement film, and methods of making and using the same In one embodiment, a brightness enhancement film comprises: a diffusing film comprising a front surface and a back surface, a coating on the front surface, and light redirecting structures disposed in the coating. The brightness enhancement film is capable of collim... | 07/31/2007 |
| 7246931 | LED light source A tube type light emitting diode light source including a light source generator, a light guide and a diffuser is provided. The light source generator includes LEDs arranging in a line. The light guide has a grooved light incident surface and a grooved light-guiding... | 07/24/2007 |
| 7237930 | Lighting system image display apparatus using the same and light diffusion plate used therefor The invention is directed to a lighting system having a reflector, light sources and a light control member sequentially disposed from a light incident side to a light outgoing side. Preferably used for large displays requiring high uniformity, this invention elimin... | 07/03/2007 |
| 7234855 | Lamp having a planar light-emitting source A lamp having a planar light-emitting source includes a light-guiding structure, a light-emitting portion, and a shading supporting seat. The point-shaped lighting units of the light-emitting portion emit the point-shaped light beams toward the side plane of the lig... | 06/26/2007 |
| 7229192 | Light fixture and lens assembly for same A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such... | 06/12/2007 |
| 7227685 | Optical film and liquid-crystal display device An optical film has a transparent film and an adhesive layer provided on one surface of the transparent film. The adhesive layer has a refractive index different by 0.12 or less from that of a layer of the one surface of the transparent film. The transparent film ha... | 06/05/2007 |
| 7213936 | Structure of direct type backlight module with high uniform emitting light A structure of direct type backlight module with high uniform emitting light explores a design of lenticular lens of diffusing plate. The lenticular lens is against the central location of light source, where the light of lamp is scattered and the curvature of said ... | 05/08/2007 |
