| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 362621000 | Incident face | 35 |
| 20090135627 | Liquid crystal display device - To prevent, in a backlight where light emitting diodes are arranged on a side surface of a light guide plate, light leakage from a reflection sheet and reduce non-uniformity of emission light from the backlight. In a liquid crystal display device that includes a backlight that irradiates a liquid crystal panel with light, LEDs are disposed as light emitting elements on a light guide plate that is disposed in the backlight, a reflection sheet that comprises a multilayer film is disposed on a bottom surface of the light guide plate, projections are disposed by sandblasting on the bottom surface of the light guide plate in the vicinity of the LEDs, and tight adhesion between the reflection sheet and the light guide plate is prevented. In the vicinity of the LEDs, in order to counter light non-uniformity, reflecting grooves are not disposed and it is a mirror surface, but tight adhesion can be prevented by disposing the projections. | 05-28-2009 |
| 20090147538 | LIGHT GUIDE PLATE WITH LASER PROCESS PATTERNS ON AN INCIDENT PLANE AND MANUFACTURING METHOD THEREOF - A method for patterning a light guide plate includes: (a) using laser beams to carve out a plurality of notches on a mold; and (b) manufacturing the light guide plate with the mold for forming a plurality of laser process patterns on an incident plane of the light guide plate. | 06-11-2009 |
| 20090213619 | LIQUID CRYSTAL DISPLAY DEVICE - In a method of forming a thin light guide plate which includes a compression step in an injection molding step, an optical pattern is liable to be adhered to a mold. Further, in removing the light guide plate from the mold using an ejector pin, a stress is concentrated on a local area of the light guide plate thus generating warping, deformation or irregularities in size of the light guide plate. To overcome such drawbacks, a liquid crystal display device is configured such that an optical pattern portion is compressed, and the light guide plate is removed by making use of a peripheral portion of a mold thus preventing the generation of stress in a local area of the light guide plate due to an ejector pin. | 08-27-2009 |
| 20090219735 | Structure for light emitting device array - Structure for polarized light source suitable for the application of flat panel display is provided. | 09-03-2009 |
| 20100002467 | Light Guide Plate and Backlight Module Using the Light Guide Plate - A backlight module of the present invention includes a light source unit and a light guide plate. The light guide plate has a light incident surface, and the light emitting unit is disposed corresponding to the light incident surface to provide a light incident on the light guide plate. The light marches in the light guide plate and provides a uniform lighting effect. A plurality of microstructures is disposed on the light incident surface, and each of the microstructure has a microstructure depth. The light guide plate has a plate thickness. The ratio of the microstructure depth to the plate thickness is substantially between 0.003 and 0.0625. | 01-07-2010 |
| 20100008103 | ILLUMINATION APPARATUS USING LIGHT GUIDE AND PORTABLE TERMINAL HAVING THE SAME - An illumination apparatus includes at least one light source for outputting light, a light guide for guiding light input from the at least one light source through multiple reflections in the light guide, at least one groove formed on the light guide to reflect incident light, and a light extraction pattern formed on a surface of the light guide to output the incident light to an exterior of the light guide. | 01-14-2010 |
| 20100142225 | Illuminating device and display device having the same - Provided is an illuminating device including a plurality of light sources. Micro prisms are provided in an opposed surface of a light guide plate. Each of the micro prisms is provided so that a reflective surface has a bottom side located at substantially 90 degrees with respect to an optical path of a beam from any one of the light sources. In a display device including a liquid crystal panel illuminated by the illuminating device, at least two micro prisms are provided in each area overlapped with aperture portions of the liquid crystal panel. | 06-10-2010 |
| 20100172155 | LIGHT GUIDE UNIT FOR POINT LIGHT SOURCE, BACKLIGHT ASSEMBLY HAVING THE LIGHT GUIDE UNIT AND DISPLAY DEVICE HAVING THE SAME - A light guide unit for a point light source includes a light incident portion, a first reflecting portion and a second reflecting portion. The light emitted from the point light source enters to the light incident portion. The light incident portion includes an optical pattern diffusing an incident light corresponding to the point light source. The first reflecting portion reflects a first light of the incident light. The second reflecting portion roundly connects the first reflecting portion to the light incident portion and reflects a second light of the incident light. | 07-08-2010 |
| 20110063875 | BACKLIGHT MODULE - A backlight module includes at least one light emitting device capable of emitting a light beam, a light guide plate, and a thermal insulation light guide element. The light guide plate has two surfaces opposite to each other and a side surface connecting the two surfaces. The light emitting device is disposed beside the side surface. The light beam enters the light guide plate through the side surface. The thermal insulation light guide element has a light incident surface and a light emitting surface. The light incident surface having at least one first recess is located in a transmission path of the light beam and between the light emitting device and the side surface. The light emitting surface is disposed between the light incident surface and the side surface. The glass transition temperature of the thermal insulation light guide element is higher than that of the light guide plate. | 03-17-2011 |
| 20110199790 | BACKLIGHT UNIT AND DISPLAY DEVICE INCLUDING THE SAME - Provided is a backlight unit capable of reducing luminance unevenness. The backlight unit includes a plurality of dot light sources and a light guide plate in which a predetermined side surface serves as a light incident surface for introducing light from the plurality of dot light sources. The plurality of dot light sources are classified into a first light source group and a second light source group. A mount point of the first light source group and a mount point of the second light source group are displaced from each other in a thickness direction of the light guide plate. A total luminance of the first light source group is higher than a total luminance of the second light source group. | 08-18-2011 |
| 20110228561 | LIGHT GUIDE PLATE AND LIGHT SOURCE APPARATUS - A light guide plate (LGP) includes a first surface, a second surface, and a plurality of light incident surfaces. The first surface is a light-emitting surface. The light incident surfaces connect the first surface and the second surface. The second surface has a plurality of ring-shaped grooves. Depths of the ring-shaped grooves are gradually decreased from a place close to a center of the LGP towards places close to the light incident surfaces. Each of the ring-shaped grooves has a first ring-shaped side wall surface and a second ring-shaped side wall surface. The second ring-shaped side wall surface is opposite to the first ring-shaped side wall surface and located between a geometry center of the ring-shaped groove and the first ring-shaped side wall surface. The first ring-shaped side wall surface is a tilted surface. In addition, a light source apparatus is also provided. | 09-22-2011 |
| 20120087152 | Light Guiding Structure of a Light Guide Plate - A light guiding structure of a light guide plate is provided. The light guiding structure comprises a plurality of protrusion ridge portions extending along a longitudinal direction. The height or the vertex angle of each protrusion ridge portion periodically or randomly varies along the longitudinal direction. | 04-12-2012 |
| 20120170317 | LIGHT GUIDE APPARATUS FOR BACKLIGHT MODULE - A light guide apparatus for a backlight module is disclosed, which includes a light guide plate, a circuit having a plurality of circuit contacts integrated with the light guide plate, and a light source disposed on the light guide plate and electrically contacted to the plurality of circuit contacts. | 07-05-2012 |
| 20120236599 | ELECTRONIC DEVICE - Provided is an electronic device including a small-area solar power generation system which is capable of efficiently generating power. A mobile device ( | 09-20-2012 |
| 20130107576 | LIGHT-GUIDE MEMBER, METHOD OF MAKING LIGHT-GUIDE MEMBER, AND PORTABLE ELECTRONIC DEVICE | 05-02-2013 |
| 20130114301 | DISPLAY DEVICE - Provided is a display device. The display device includes a light guide plate, a light source disposed on a side surface of the light guide plate, a light conversion member disposed between the light source and the light guide plate, and a plurality of light path change particles disposed between the light conversion member and the light guide plate. | 05-09-2013 |
| 20130121028 | LIGHT GUIDE PLATE WITH MICRO-DOTS - A light guide plate includes an incident surface, an emergent surface substantially perpendicular to the incident surface, a bottom surface opposite to the emergent surface, and a number of micro-dots positioned on the bottom surface. The micro-dots have similar shape and size. A density of the micro-dots gradually increases from a near-end to a far-end of the incident surface. | 05-16-2013 |
| 20130155723 | Replaceable lightguide film display - In one embodiment, a device includes a light transmitting film defining a body and having opposing faces with a thickness between the opposing faces not greater than 0.5 millimeters. A first region is defined within the body representing a region of one or more of a pattern, an indicia, a graphic, and an image that is visible by light extraction when illuminated by light propagating within the film in a waveguide condition. The first region includes a plurality of light extraction features that redirect a portion of light traveling within the film in a waveguide condition that mixes within the legs and the body out of one or more of the opposing faces of the film in the first region. A method of producing a device is also disclosed | 06-20-2013 |
| 20130201724 | LIGHT GUIDE PLATE HAVING DUAL MICRO STRUCTURES - A light guide plate includes a light incident surface, a light exit surface; and a bottom surface opposite the light exit surface. The light incident surface includes many first micro structures and many second micro structures. Each second micro structure cover some of the first micro structures. | 08-08-2013 |
| 20140029306 | LIGHT GUIDE PLATE, LIGHT GUIDE PLATE MANUFACTURING METHOD, AND LIGHT GUIDE PLATE MANUFACTURING APPARATUS - A light guide pate includes: a light guide member with a light incident surface and first and second principal surfaces; and first and second protrusions formed on at least one of the first and second principal surfaces. When the first principal surface is viewed in a normal direction, a distance between the light incident surface and the second protrusion is larger than a distance between the light incident surface and the first protrusion; each of the first and second protrusions has a shape, a length of which in an orthogonal direction orthogonal to a propagation direction of light incident from the light incident surface increases monotonously in the propagation direction; and a minimum value of the length of the second protrusion in the orthogonal direction is larger than a maximum value of the length of the first protrusion in the orthogonal direction. | 01-30-2014 |
| 20140104884 | LIGHT GUIDE PLATE, AND METHOD AND MOLD FOR MANUFACTURING THE SAME - The present invention provides a light guide plate and a method and a mold for manufacturing the same. The light guide plate comprises at least one incident surface, an exiting surface and a bottom surface, the exiting surface and bottom surface being disposed facing to each other and both being connected to the incident surface, the light guide plate having a cavity formed therein, wherein light incident from the incident surface exits the exiting surface after refracted and/or reflected by the cavity. With the light guide plate, light energy loss can be reduced and brightness of pictures can be improved. | 04-17-2014 |
| 20140119055 | Light Coupling Arrangement of Backlight Module - The present invention relates to a light coupling arrangement of a backlight module, which includes a heat dissipation board, an LED light bar, a light guide plate, and a backplane. The heat dissipation board is positioned at a light incidence side of the light guide plate and fixed to the backplane. The LED light bar is fixed to the heat dissipation board and opposes the light incidence side of the light guide plate. The heat dissipation board forms a bump that faces the light incidence side of the light guide plate. The bump has a top that is in contact with the light incidence side of the light guide plate to constrain movement of the light guide plate in a light incidence direction. The light guide plate has a light-opposite side, and an elastic structure is received between the light-opposite side and a side wall of the backplane. | 05-01-2014 |
| 20140198531 | LIGHT GUIDE PLATE - The light guide plate includes two layers having different particle concentrations, in which the thicknesses of the two layers are varied to change the combined particle concentration of the light guide plate, and conditional expressions of 0.3 mm≦T | 07-17-2014 |
| 20140307477 | LIGHT GUIDE PLATE WITH UNIFORM LIGHT OUTPUT AND METHOD OF MANUFACTURING SAME - A light guide plate includes a main body and a number of transparent particles. The main body includes a light incident surface, and defines a micro structure in the light incident surface. The transparent particles are made of material with a refraction index greater than the refraction index of the material of the main body and are attached on the light incident surface in the micro structure. | 10-16-2014 |
| 20150362655 | LIGHT TRANSMISSION DEVICE, BACKLIGHT MODULE AND DISPLAY DEVICE - The present disclosure discloses a light transmission device including a first prism layer. The first prism layer includes a plurality of first prism bars formed on a surface of the first prism layer facing away from the panel, and a plurality of reflective grooves formed on a surface of the first prism layer facing the panel. Each of the reflective grooves includes a plurality of reflective surfaces matching with prism surfaces of the first prism bars; the reflective surfaces reflect received light to corresponding prism surfaces; the prism surfaces of the first prism bars are configured to emit received light reflected from the corresponding reflective surfaces towards the panel in a first direction. | 12-17-2015 |
| 20160085015 | DISPLAY APPARATUS HAVING THERMALLY PROTECTED BACKLIGHT ASSEMBLY - A spacer member is provided within a display apparatus that includes a heat-emitting light source and a thermally deformable light guide plate. In one embodiment, the spacer member includes a pair of spacer members disposed at sides of the light source and engaging the light guide plate so as to space the light source from a light receiving incident surface of the PGP by a predetermined distance. | 03-24-2016 |
| 20160124270 | ILLUMINATION DEVICE, DISPLAY DEVICE, AND TV RECEIVER - The backlight device includes: a plurality of LEDs arranged in a row; and a light guide plate having, on the long-side side faces, light-entering faces into which light emitted from the plurality of LEDs enters, the light guide plate further having side faces that respectively abut the light-entering faces | 05-05-2016 |
| 20160161669 | REFRIGERATOR WITH SHELF LIGHTING - A refrigerator with shelf lighting is provided that may include a refrigerator main body having a storage room, at least one shelf provided inside of the storage room, a light source provided at a rear end of the shelf, a power supply provided at a rear of the storage room, the power supply supplying power to the light source, and a light guide plate provided at the at least one shelf. The light guide plate may guide light of the light source to a front of the shelf. Accordingly, it is possible to reduce a length of an electric wire connecting the light source to the power supply and prevent the occurrence of glare caused by direct lighting. | 06-09-2016 |
| 362622000 | Film or coating | 7 |
| 20100027295 | OPTICAL SHEET AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - An optical sheet and a liquid crystal display (LCD) including the same are provided. The optical sheet may include a base film; and a protrusion layer including a plurality of protrusions and disposed over the base film, wherein the base film includes a first layer over which the protrusion layer is disposed, and a second layer over which the first layer is disposed, wherein at least one of the first layer and the second layer includes a wavy surface where the first layer is disposed over the second layer. Therefore, it is possible to improve a haze of the optical sheet while maintaining an optical transmissivity of the optical sheet. | 02-04-2010 |
| 20110170317 | LIGHT-GUIDING STRUCTURE WITH PHOSPHOR MATERIAL LAYERS - A light-guiding structure with phosphor material layers includes a light-guiding unit, a light-emitting unit and a phosphor unit. The light-emitting unit is disposed beside an outer lateral side of the light-guiding unit. The phosphor unit is connected with the light-guiding unit and is disposed between the light-guiding unit and the light-emitting unit. In addition, the phosphor unit is formed or pasted on the lateral side of the light-guiding unit, and the light-emitting unit has a PCB substrate and a plurality of light-emitting elements electrically disposed on the PCB substrate and facing the light-guiding unit. Hence, light beams generated by the light-emitting elements of the light-emitting unit pass through the phosphor unit to form another light beams, and the light beams are guided into the light-guiding unit. Finally, the light beams are projected out from a light-exiting face of the light-guiding unit. | 07-14-2011 |
| 20110286242 | LIGHT GUIDE PANEL, FRONT-LIGHT MODULE AND REFLECTIVE DISPLAY APPARATUS - A light guide panel (LGP) has a light incident surface for receiving light. The LGP is configured at a side of a display surface of a reflective display panel. Besides, the LGP includes a main body, a first film, and a plurality of circular light guide patterns. The first film is configured on one side surface of the main body away from the display surface. The circular light guide patterns are configured on the first film, so that the light transmitted in the LGP exits and substantially moves toward the display surface. Each of the circular light guide patterns has a center and a circumference. An included angle is between two lines that respectively connect the center to the circumference located at two sides of the center, and the included angle is 140°˜179°. | 11-24-2011 |
| 20120008341 | APPARATUS FOR FABRICATING LIGHT GUIDE PANEL AND BACKLIGHT UNIT HAVING THE LIGHT GUIDE PANEL - The present invention relates to an apparatus for fabricating a light guide panel which can improve light efficiency and brightness, and a backlight unit having the light guide panel. The backlight unit includes a light source for generating a light, and a light guide panel for guiding the light incident thereon from the light source, the light guide panel having an upper pattern which is formed on a front side thereof for emitting the light guided thus to upward and a lower pattern which is formed on a backside thereof for reflecting or refracting the light, wherein the lower pattern of the light guide panel is formed in an intaglio pattern having a vertical angle at which two inclined planes meet, and one of the two inclined planes the light from the light source incident thereon has an angle of 45˜55°. | 01-12-2012 |
| 20120063171 | LIGHT-GUIDE MODULE, METHOD OF MANUFACTURING THE SAME AND BACKLIGHT ASSEMBLY HAVING THE SAME - In a light-guide module, a method of manufacturing the light-guide module and a backlight assembly having the light-guide module, the light-guide module includes a light-guide plate (“LGP”) and a thin-film layer. The LGP has a light-incident surface into which lights are incident and a light-exiting surface through which lights exit. The thin-film layer is formed on the LGP. The thin-film layer has a concavo-convex pattern formed on an opposite surface of a surface contacting the LGP. Accordingly, a thin-film layer having a concavo-convex pattern is formed on a light-incident surface of an LGP, so that a reflectance of light incident into the LGP may be decreased. Moreover, a light amount transmitted through the LGP is increased in accordance with a decreasing of reflectance, so that a light transmittance may be increased in total. | 03-15-2012 |
| 20120257417 | DISPLAY APPARATUS - A display apparatus includes a display panel, a light guide plate, a frame and an optical film disposed between the display panel and the light guide plate. The display panel is defined to have a display area and a non-display area adjacent to the display area. The frame surrounds the light guide plate, the optical film and the display panel. The frame includes a sidewall and a support structure extending from an inner surface of the sidewall to above the light guide plate. The support structure includes a light shielding part, a first support part configured to support the optical film. The light shielding part is connected to the first support part. A light-pervious area is formed between the light shielding part and the optical film. The first support part is under cover of the non-display area. | 10-11-2012 |
| 20150078035 | DEVICE COMPRISING A FILM-BASED LIGHTGUIDE AND COMPONENT WITH ANGLED TEETH - A device disclosed herein includes a component having a frame and an array of protruding teeth extending from the frame. Each tooth of the array of protruding teeth has an angled edge. The device also includes a lightguide formed from a film. The lightguide includes an array of strips extending from an area of the film. The array of strips is positioned adjacent the array of protruding teeth, and the component at least partially restrains the film when each strip of the array of strips is folded across an angled edge of a corresponding tooth of the array of protruding teeth. | 03-19-2015 |
