Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7926999 | Planar light-emitting device and display apparatus having the same A planar light-emitting device includes an elongate first lightguide plate (13) having a light entrance end surface (13a) disposed facing an exit surface (12a) of a light-emitting package (12), a reflecting side surface (... | 04/19/2011 |
| 7914192 | Enhanced light diffusing sheet A light transmitting diffusing sheet can be used in backlighting systems for liquid crystal displays (LCDs). Such displays are typically used in televisions, computer monitors, laptop computers and handheld devices such as mobile phones. Embodiments of the light dif... | 03/29/2011 |
| 7891853 | Apparatus and method for controlling operation of LED in light unit Provided are an apparatus and method for controlling an operation of an LED in a light unit. The apparatus includes: a micom for sequentially outputting red, green and blue signals delayed by a predetermined interval through n (n>1) number of channels for each color... | 02/22/2011 |
| 7708442 | Light emitting panels for display devices Devices and assemblies for providing light to a display panel, including methods of attaching such devices and assemblies to a circuit board, are disclosed. An illustrative device can include a light emitting panel including at least one light interface for receivin... | 05/04/2010 |
| 7654720 | Dedicated LED airfield system architectures A system and method that contemplates operating an LED at its characterized current (e.g. 400 mA) for any luminous intensity. A Pulse Width Modulation (PWM) is employed, wherein the pulse width of the pulse width modulated signal is used to control the luminous inte... | 02/02/2010 |
| 7534024 | Optical deflector element and light source device An optical deflector element has a light incoming surface (41) in which light enters and a light outgoing surface (42) located opposite the light incoming surface and from which light exits. In the light incoming surface (41) are arranged elonga... | 05/19/2009 |
| 7524100 | Light and liquid crystal display device having the same A light for a liquid crystal device comprises a side supporter, a lamp fixing portion installed at a front surface of the side supporter, and a U-shaped lamp insertingly fixed into the lamp fixing portion. ... | 04/28/2009 |
| 7478940 | Backlight module A backlight module includes a lamp tube, a light guide plate and a light guide unit. The light guide plate has a light incident side. The light guide unit is in contact with the light incident side of the light guide plate. The light guide unit and the light inciden... | 01/20/2009 |
| 7448784 | Lighting device A branch portion of a socket is formed into a thin cylindrical shape so that it can be elastically displaced, end faces of both side plates of a lamp reflector are made to be points for positioning, positioning protrusions are integrally protruded from both side out... | 11/11/2008 |
| 7441921 | Backlight unit and method of driving the same A backlight unit includes at least one cold cathode fluorescent lamp arranged at a lower end of a bottom cover, external electrode fluorescent lamps arranged on the bottom cover above the cold cathode fluorescent lamp, and inverters disposed on a rear side of the bo... | 10/28/2008 |
| 7431478 | Liquid crystal display device including backlight unit A liquid crystal display device includes a backlight unit having at least one lamp with an electrode at one end thereof, and at least one temperature controller adjacent to the electrode of the at least one lamp. The at least one temperature controller has a first t... | 10/07/2008 |
| 7419293 | Light guide plate and backlight module using the same A backlight module (2) includes a light source (21) and a light guide plate (23). The light source includes a lamp (231) and two electrode cases (233), the two electrode cases engage with opposite ends of the lamp. The light guide ... | 09/02/2008 |
| 7413318 | Direct type backlight module A direct type backlight module (200) includes a substrate (231), a diffusion sheet (24) disposed above the substrate, a plurality of spacers (21) and a plurality of light sources (22). The spacers are disposed between the substrate... | 08/19/2008 |
| 7410285 | Surface light source device A surface light source device is provided with a primary light source and light guide plate. The light guide plate has an incidence side face opposite to which the primary light source employing LEDs or the like is disposed, an emission face for emitting light, whic... | 08/12/2008 |
| 7391337 | Interactive LED display network for retail environment A bi-directional communication system communicates between a control station, which receives and outputs control signals, and one or more display cabinets. LEDs illuminate objects disposed about the cabinets. Addressable nodes interactively communicate with the cont... | 06/24/2008 |
| 7387420 | Surface light source device A surface light source device has a light-conductor plate operable to conduct light inside and allows the light to exit at a light-exit surface to outside, a light source that is small compared to a width of the light-conductor plate, having a first surface arranged... | 06/17/2008 |
| 7380968 | Optical deflector element and light source device An optical deflector element has a light incoming surface (41) in which light enters and a light outgoing surface (42) located opposite the light incoming surface and from which light exits. In the light incoming surface (41) are arranged elonga... | 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 |
| 7347611 | Optical guide and image forming apparatus using the same An optical guide and an image forming apparatus which uses the optical guide in an eraser or an auxiliary transfer device. The optical guide guides light incident through one side in a lengthwise direction, makes the light in an effective width range of the lengthwi... | 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 |
| 7344292 | Edge-type backlight unit An edge-type backlight unit having a plurality of rows of red, blue and green LEDs to provide a light source. In the backlight unit, a light guide plate has a light incidence part formed on a side surface thereof to receive light, the light guide plate inducing the ... | 03/18/2008 |
| 7338196 | Low profile light panel Low profile, thin panels using a layer of clear cast polymer with a reflective, mirrored backing and edges and a light diffusing face sheet, carrying light sources using fiber optic lenses or diodes on all or any sides thereof. The reflective sides direct the light ... | 03/04/2008 |
| 7339637 | Liquid crystal display light source device A light source device includes a housing, a reflecting plate, at least one lamp support member and a plurality of lamps. The housing has a substantially flat bottom plate. The reflecting plate is disposed on the bottom plate of the housing. The lamp support member i... | 03/04/2008 |
| 7322731 | Color mixing illumination light unit and system using same An illumination light unit includes at least two light sources that generate light at different wavelengths. The illumination light unit also includes a reflecting cavity having one or more reflectors and a controlled transmission mirror disposed at an output of the... | 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 |
| 7294813 | Microwave oven having an illuminated guide line A microwave oven includes a main body, a door opening and closing the main body, and a control panel placed in one side of the main body and provided with a plurality of function operators. A guide line is provided on the control panel and lights up to guide manipul... | 11/13/2007 |
| 7290914 | Light source device A light source device including a light-guiding pillar, an opaque layer, and a light source is provided. The light-guiding pillar has a light incident surface and a light emitting surface, and the light incident surface is adjacent to the light emitting surface. In ... | 11/06/2007 |
| 7290916 | Field emission light source and a related backlight device A light source (100) provided herein generally includes a substrate (110), a cathode (120), an isolating layer (122), a light-permeable anode (152), and at least one fluorescent layer (154). The substrate has a surface, and ... | 11/06/2007 |
| 7287892 | Light source for back-lit displays A light source having a light pipe and a light generation section. The light pipe includes a two-dimensional sheet of transparent material having a transparent top surface that is substantially parallel to a reflective bottom surface. The light pipe includes light p... | 10/30/2007 |
| 7287737 | Decorative cover frame assembly for selectively concealing a flat panel or high definition television display A cover frame assembly for use in conjunction with an existing flat panel display of a display device such as a high definition television. The cover frame assembly comprises an outer frame, and a one-way mirror attached within the outer frame. After mounting the fl... | 10/30/2007 |
| 7281835 | Backlight module for flat panel display A backlight module and a flat panel display using the same. The backlight module comprises a light source device and light guide plate adjacent to the light source device. The light source device comprises a high intensity discharge lamp, a reflector having an openi... | 10/16/2007 |
| 7278754 | Back light unit A back light unit includes a plurality of lamps arranged at predetermined distances from each other, each lamp having a lamp tube provided with electrodes at both ends thereof. Common electrodes communicate with both ends of said plurality of lamps and contain a plu... | 10/09/2007 |
| 7275845 | Illuminatable windshield assembly An illuminatable windshield assembly, preferably for use on a motorcycle, but adaptable for use on all types of vehicles. The illuminatable windshield assembly includes a windshield comprised of a translucent panel having an outer peripheral surface wherein the pane... | 10/02/2007 |
| 7270461 | Backlight unit and liquid crystal display utilizing the same A backlight unit for a liquid crystal display. The backlight unit in a liquid crystal display includes a light source having a plurality of basic cell structures. Each basic cell structure consists of three unique colors of first, second, and third light emitting di... | 09/18/2007 |
| 7229193 | Backlight unit A backlight unit, suitable for a large sized LCD device, includes a plurality of fluorescent lamps alternately provided under an LCD panel in at least two parts, formed by dividing a light-emitting surface. Adjacent end parts of the fluorescent lamps are overlapped ... | 06/12/2007 |
| 7223004 | Light guide plate with narrowed center and surface light source device incorporating same A light guide plate includes two opposite incident surfaces for receiving light beams, an emitting surface joining the two incident surfaces and a bottom surface opposite to the emitting surface. The emitting surface has a V-shaped profile defined by two symmetric o... | 05/29/2007 |
| 7222977 | Light and sound mirror assembly with appearing characters A combination mirror and amusement system for entertaining and amusing a child in a vehicle. A mirror assembly attachable to a vehicle seat includes a mirror and a frame surrounding the mirror. The frame has at least one ornamented portion and at least one appearing... | 05/29/2007 |
| 7217026 | Illuminator, liquid crystal display comprising it and lamp socket A lighting system includes a light guide plate, having a plane of incidence into which light enters and a plane of emission from which the light is emitted, a light source, having a luminous portion and a non-luminous portion, that is located adjacent to the light g... | 05/15/2007 |
| 7213959 | Backlight assembly and liquid crystal display having the same A backlight assembly and an LCD having the same are disclosed to prevent wrinklings of optical sheets due to close contact of optical sheets or prism sheets. The backlight assembly includes multiple optical sheets disposed between a light guiding plate and a display... | 05/08/2007 |
| 7210839 | Backlight system and liquid crystal display employing the same A backlight system providing enhanced uniform brightness and a liquid crystal display (LCD) employing the same are provided. The backlight system includes: a light guide panel which forms a surface light source by guiding light; and a plurality of light emitting uni... | 05/01/2007 |
