| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 362623000 | Reflective face | 77 |
| 20080291696 | Integrated Light Guide Panel and Method of Manufacturing the Same - An integrated light guide panel for use in a backlight unit for an LCD and a method for manufacturing the same are disclosed. The integrated light guide panel includes a light guide panel for guiding light, to form surface light, a reflective coating layer arranged beneath the light guide panel, to reflect light emerging from a lower surface of the light guide panel such that the light is again incident to the light guide panel, a diffusive coating layer arranged over the light guide panel, to diffuse light emerging from the light guide panel, a prism coating layer arranged over the diffusive coating layer, to concentrate light emerging from the diffusive coating layer, and low refractive coating layers respectively arranged between the light guide panel and the reflective coating layer and between the light guide panel and the diffusive coating layer. | 11-27-2008 |
| 20090034296 | Light Emitting Unit, Illumination Device Using Such Light Emitting Unit, and Image Scanner - A light emitting unit comprises a light emitting element, a light emitting element substrate for mounting the light emitting element, a light emitting element substrate frame member provided with a window for exposing the light emitting element, and an electrode for supplying electricity to the light emitting element, wherein the light emitting element substrate is a metal and the light emitting element is mounted directly on the light emitting element substrate. The light emitting unit is also characterized in that the light emitting element substrate is a metal, a metal oxide film is provided on the light emitting element substrate, and the light emitting element is mounted on the electrode formed on the metal oxide film. | 02-05-2009 |
| 20090067195 | BACKLIGHT REFLECTION PLATE AND BACKLIGHT MODULE - Disclosed is a backlight reflection plate and a backlight module using the reflection plate. The reflection plate encloses a light source. The reflection plate comprises a reflection substrate with a surface facing the light source. The reflection plate comprises a first region close to one end of the light source with a higher brightness and a second region close to the other end of the light source with a lower brightness. The reflectivity of the first region is smaller than that of the second region. | 03-12-2009 |
| 20090080221 | LIGHT RECEIVING ELEMENT - An exemplary aspect of the invention is a light receiving element comprising a substrate, a light receiver absorbing light on a surface of the substrate, and a reflector reflecting the light incoming from a side of the substrate to the light receiver, wherein a reflecting surface of the reflector is inclined toward the side of the substrate in a section parallel to the surface of the substrate. | 03-26-2009 |
| 20090097275 | Backlight Unit and Liquid Crystal Display Apparatus - A backlight unit ( | 04-16-2009 |
| 20090097276 | Substrate Structure and Side-Entrance Lighting Structure - A substrate structure includes a substrate, a plurality of point light sources, a first wall and a plurality of convex members. The point light sources are disposed on the substrate. The first wall is on a long side of the substrate and substantially perpendicular to the substrate. The convex members extend from the first wall along a direction that is substantially perpendicular to the substrate. The convex members keep away the point light sources from optical sheets when installing the substrate structure into a frame. Moreover, a side-entrance lighting structure is disclosed. | 04-16-2009 |
| 20090147539 | Optical assembly - An optical assembly includes a light source for generating and emitting light, a light guide plate, and a light transmissive plate. The light transmissive plate is disposed above the light guide plate and has a plurality of asymmetric V-shaped structures on a bottom surface thereof. The V-shaped structures may divert the light emitted from an optical element to exit at a collimation angle, thereby enhancing a light utilization, reducing loss of the light, and facilitating the enhancement of a positive gray level. Further, the optical assembly has a simple structure and a low cost. | 06-11-2009 |
| 20090168459 | LIGHT GUIDE INCLUDING CONJUGATE FILM - In various embodiments described herein, a front light guide panel comprises a plurality surface relief features having a variety of different sloping surface portions. Light injected into an edge of the light guide propagates though the light guide until it strikes one of the surface relief features. The light is then turned by total internal reflection such that the light is directed onto a reflective modulator array rearward of the light guide panel. The light reflects from the modulator array and is transmitted back through the surface features of the light guide panel. However, depending upon where the light is incident on the surface features, the light will be refracted at different angles by the different sloping surface portions. As a result, light reflected from a single point on the modulator array appears to originate from different locations, and ghost images appear. To reduce such ghosting, a conjugate film having equal and opposite surface relief features is disposed forward of the light guide panel. Light reflected from the modulator array and passing through surface relief features on the light guide panel is refracted a second time by the conjugate film to return the rays to their original trajectory. | 07-02-2009 |
| 20090196071 | LIGHTING SYSTEM FOR CREATING AN ILLUMINATED SURFACE - The present invention combines point light sources in combination with a light guide element and light redirecting elements into a system which can emit light across one or more extended surfaces of the light guide and may be designed to be able to emit light uniformly across the extended surfaces. The system comprises one or more light-emitting elements and a light guide in which are defined one or more voids. The light-emitting elements are optically coupled to the light guide by positioning them adjacent to a surface of the light guide, or by positioning them proximal to one or more of the voids. One or more light-emitting elements can be optically coupled to one void such that they emit light into the light guide substantially through that void and not through any other void of the one or more voids. Optically coupled to the light guide are a plurality of light redirecting elements for altering of the propagation of light through the light guide, thereby enabling light to be emitted from the surface of the light guide in a desired pattern, for example in a uniform illumination pattern. | 08-06-2009 |
| 20090290380 | WAVEGUIDE-BASED PACKAGING STRUCTURES AND METHODS FOR DISCRETE LIGHTING ELEMENTS - In one aspect, an illumination source includes a socket formed by the union of a sub-assembly platform and a light-guide element, and a discrete light source received in the socket. In another aspect, the light-guide element includes a concentration region proximate an in-coupling region opposite an out-coupling region, the concentration region directing multidirectional light from the in-coupling region toward the out-coupling region. | 11-26-2009 |
| 20090296423 | BACKLIGHT ASSEMBLY AND DISPLAY DEVICE HAVING THE SAME - One or more embodiments of a backlight assembly include a light guide plate (LGP), a light source module and an optical sheet. The LGP includes a side surface and an upper surface. The light source module includes a power-transmitting member and a plurality of point light sources disposed on the power-transmitting member. A side portion of the power-transmitting member is disposed on a peripheral portion of the upper surface adjacent to the side surface and a light-exiting surface of the point light sources facing the side surface to be adjacent to the side surface. The optical sheet is disposed on the upper surface. A portion of the optical sheet is disposed between a corner portion of the upper surface and the power-transmitting member adjacent to the light-exiting surface. The amount of the light absorbed by a reflective member may be decreased to improve the efficiency of the light. | 12-03-2009 |
| 20100135040 | Light-Emitting Element and Display Device Using Same - A self light emitting display device having high level of the external coupling efficiency and high grade image presentation as no optical cross-talk or blur can be obtained by a new light-emitting element. The device is constructed as follows. A plurality of picture elements, each of which picture elements has an organic layer composing light emitting areas, a transparent electrode and a reflective electrodes, are formed on a substrate. Between the picture elements, a bank which has a tilted reflective surface is formed so that the light emitting area is surrounded by the bank wherein the transparent optical waveguide layer is formed as optically isolated for each of the picture elements. | 06-03-2010 |
| 20100182801 | PRINTED ULTRA THIN LIGHT GUIDING PLATE - A printed ultra thin light guiding plate comprises a plastic cement plate ( | 07-22-2010 |
| 20120014135 | EDGE TYPE BACKLIGHT UNIT AND METHOD FOR MANUFACTURING THE SAME - An edge type backlight unit and a method for manufacturing the same are disclosed. The edge type backlight unit includes light sources for providing light, a printed circuit board (PCB) on which the light sources are mounted, a metal bracket that contacts the printed circuit board and dissipates heat of the printed circuit board, and a thermal hardener formed between the printed circuit board and the metal bracket. The printed circuit board supplies an electrical signal for driving the light sources to the light sources. | 01-19-2012 |
| 20120140521 | FLAT PANEL DISPLAY - In a flat panel display, a reflector and a light guide plate are enlarged and a support section is formed on the light guide plate. A support component made of Methylsilanol Mannuronate with high stiffness is configured onto the support section and utilized for supporting a cell. After optical films are configured on the light guide plate, and between the support component, the cell is then placed on the support component. Finally, a top frame and two covers are assembled to complete the assembly of the flat panel display. | 06-07-2012 |
| 20120163032 | LIGHT GUIDE PLATE, LIGHT GUIDE PLATE MOLD INSERT AND METHOD FOR MAKING LIGHT GUIDE PLATE - A light guide plate mold insert includes a molding surface and a number of uniformly distributed dot-shaped recesses. The molding surface is used for forming a reflective surface of a light guide plate. The uniformly distributed dot-shaped recesses are formed in the molding surface. The molding surface includes a number of frosted regions formed by machining the molding surface using a sand-blasting process. Each of the frosted regions includes a number of dot-shaped micro recesses. A distribution density of the micro recesses are greater than that of the recesses. | 06-28-2012 |
| 20130021824 | LIGHT GUIDE PLATE AND BACKLIGHT MODULE - The present invention provides a light guide plate and a backlight module. The backlight module comprises the light guide plate. The light guide plate comprises a plurality of elongated microstructures disposed on the light guide plate and parallel to a light-incident surface thereof. At least one curve parameter of profiles of the elongated microstructures is altered according to a position variation in an extending direction of the elongated microstructures, so as to adjust a brightness distribution in the extending direction of the elongated microstructures. The invention can improve a luminous efficiency of the light guide plate. | 01-24-2013 |
| 20130100703 | THERMOFORMING METHOD AND PLATE ASSEMBLY THEREOF - The present invention discloses a thermoforming method and a plate assembly thereof. The thermoforming method applicable for manufacturing a plate assembly having a first plate and a second plate comprises the steps of disposing the second plate on a lamination surface of the first plate; putting the first plate and the second plate into a first mold and a second mold respectively; heating and pressing the first mold and the second mold to deform any one of the lamination surfaces of the first plate and the second plate in order to laminate the first plate and the second plate; and opening the first mold and the second mold to remove the plate assembly. The first plate can be a light guide plate, and the second plate can be a reflector. | 04-25-2013 |
| 20130128620 | VEHICULAR LAMP - Provided is a vehicular lamp that includes a light source and a light guide that guides a light from the light source in the inside thereof. The light guide is formed by an injection molding, and a plurality of reflective elements spaced from each other are formed in the rear surface of the light guide. Each of the reflective elements is formed to protrude from the rear surface of the light guide toward the rear side, and the inner surface of each of the reflective elements internally reflects the light from the light source toward the front surface of the light guide. | 05-23-2013 |
| 20130188395 | ELECTROMAGNETIC INDUCTION ANTENNA PLATE, BACK-LIGHT AND DISPLAY DEVICE - Embodiments of the invention provides an electromagnetic induction antenna plate, a back-light and a display device, and the electromagnetic induction antenna plate comprises a wiring layer and a fixing structure for attaching the wiring layer to a back plate of a back-light, wherein the wiring layer comprises a first surface facing the back plate and a second surface coated with a reflective material and facing a light guide plate of the back-light when amounted to the back-light. | 07-25-2013 |
| 20130286686 | Optical Light Guide Element For An Electronic Device - The invention relates to an optical light guide element ( | 10-31-2013 |
| 20140009967 | LIGHT GUIDE - A light guide comprising: a main light-guide housing that is elongated shaped, having a first end face, a second end face, and a first lateral face connecting the first end face and the second end face, and the main light-guide housing being elongated in a predetermined direction from the first end face to the second end face; and a protrusion that is connected to the main light-guide housing, having a third end face in an opposite direction from the predetermined direction and a second lateral face connecting the third end face to the first end face, and the protrusion projecting from the first end face in the opposite direction from the predetermined direction, wherein, light emitted toward the third end face by a light source in part exits the protrusion from the second lateral face, then enters the main light-guide housing from the first end face, and thereafter exits the light guide from the first lateral face. | 01-09-2014 |
| 20140029307 | THIN LIGHT GUIDE DEVICE UTILIZING LED FLASH ON A PORTABLE ELECTRONIC APPARATUS - A thin light guide device applying LED flash on a portable electronic apparatus is to utilize a reflection unit such as a mirror to change forward direction of the light emitting from a LED flash, thereby making the LED flash capable of providing illumination, decoration and light source projecting to the display for enhancing functions of the LED flash. | 01-30-2014 |
| 20140043859 | LIGHT GUIDE PLATE AND MANUFACTURING METHOD OF THE SAME - A light guide for converting a dot light source or a linear light source into a planar light source, and the light guide includes a light emitting surface and a reflection surface facing the light emitting surface and having a plurality of reflection patterns, wherein a width of the reflection patterns is less than 10 μm. | 02-13-2014 |
| 20140133182 | LIGHT GUIDE PLATE STRUCTURE AND LIGHT-GUIDE-PLATE MANUFACTURING METHOD THEREOF - A light guide plate structure includes a light guide plate, a first medium layer, a micro structure, a second medium layer, and a reflection layer. The light guide plate has a light exit surface and a bottom surface opposite to the light exit surface. The first medium layer is formed on the light exit surface. The micro structure is formed on the bottom surface for redirecting light inside the light guide plate to emit from the light exit surface. The second medium layer is formed on the micro structure. The refractive index of the first medium layer and the refractive index of the second medium layer are less than the refractive index of the light guide plate but greater than the refractive index of air. The reflection layer is formed on the second medium layer for reflecting light inside the light guide plate to emit from the light exit surface. | 05-15-2014 |
| 20140328084 | Electronic Device and Display Module with Sensing Antenna - An electronic device and a display module used therein are provided. The display module includes a display panel, a backlight module and a sensing antenna. The backlight module has a light exit surface and a reflective plate opposite to the light exit surface, and the display panel is stacked on the light exit surface. The sensing antenna is disposed on a surface of the reflective plate opposite to the light exit surface and has a body and two signal connecting terminals connecting the body. The electronic device includes the display module, a system circuit module, and a conductive device. The system circuit module is disposed on a back side of the display module and has a signal connecting parts corresponding to and connecting the signal connecting terminals. | 11-06-2014 |
| 20150131324 | LIGHTING DEVICE INCLUDING A LIGHT RAY GUIDE - A lighting and/or signaling device and a light ray guide (N) formed by a guide plate comprising a light entry face, a light exit face and a reflection face having an elliptical profile toward the rear adapted to assure reflection of light rays entering the guide plate through the light entry face toward a focus point (F) located at the level of the light exit face of the guide plate. | 05-14-2015 |
| 20160004003 | HYBRID NANOPARTICLES AND ILLUMINATION DEVICES USING THE HYBRID NANOPARTICLES - Hybrid nanoparticles and transparent light guides using the hybrid nanoparticles are disclosed. In some examples, a hybrid nanoparticle may include an organic blue-light emitting material, and an inorganic material bonded to the organic blue-light emitting material. | 01-07-2016 |
| 20160070054 | LIGHT GUIDE AND MANUFACTURING METHOD OF SAME - A light guide includes a guiding layer and a reflecting layer. The guiding layer includes a light emitting surface and a bottom surface opposite to the light emitting surface. The reflecting layer is formed on the bottom surface. The reflecting layer is a compound containing polyester polyols, isocyanic aci, butyl acetate and reflective powder, or a compound containing curing agents and reflective powder. | 03-10-2016 |
| 362624000 | Film or coating | 15 |
| 20090067196 | SURFACE LUMINOUS BODY - A surface luminous body comprises a light guiding body, a coating layer formed by applying a binder paint where a reflecting material is mixed into and dispersed in a binder onto a surface of the light guiding body, and a reflecting layer made of a pigment layer which is formed by applying a pigment containing binder paint where a pigment is mixed into and dispersed in a binder onto the coating layer, wherein the average particle diameter of the mixed beads is 1 μm to 80 μm, and the pigment is opaque and made of a light reflecting material. | 03-12-2009 |
| 20090154198 | REFLECTION TYPE DISPLAY APPARATUS - A reflection type display apparatus has a front light unit (FLU), and includes a display panel, a light guide disposed on the upper surface of the display panel, a light transparent adhesive layer attaching the lower surface of the light guide to the upper surface of the display panel, and a light source located at a side of the light guide for emitting light to the light guide. A protection window covers the light guide and the light source. By covering the display panel installed on the lower surface of the protection window and the light guide with a moisture-proof and light-shield film, moisture-proofing and light-shielding effects are obtained simultaneously. Further, by forming a light absorption layer at the edge of the light guide adjacent to the light source, generation of a hot spot at the edge of the light guide may be inhibited. | 06-18-2009 |
| 20100067257 | PATTERNED ADHESIVES FOR REFLECTORS - A reflector laminate, and backlights and displays incorporating such reflector laminates are disclosed. The reflector laminate includes a substrate and a reflector that are adhered together by a plurality of adhesive protrusions. The adhesive protrusions provide for a plurality of voids between the reflector and the substrate, so that a free reflector surface is adjacent to an air gap between the reflector and substrate. The reflector can include a multilayer interference reflector, and the presence of the air gap ensures high reflectivity for the laminate. The reflector can be adhered to a solid lightguide, a frame enclosing a portion of a backlight, a frame enclosing a hollow lightguide cavity, or an optical sheet positioned at the output surface of a backlight. | 03-18-2010 |
| 20110292685 | INTEGRATED LIGHT GUIDE PLATE AND BACKLIGHT UNIT INCLUDING THE SAME - An integrated light guide plate and a backlight unit including the same. The integrated light guide plate includes a light guide plate, which forms planar light by guiding light, and a reflecting mirror, which is integrally formed on an underside of the light guide plate. The reflecting mirror reflects light that has downwardly passed through the light guide plate so that the light is introduced again into the light guide plate. The reflecting mirror includes a buffer layer, which is formed on the underside of the light guide plate, and a reflecting layer, which is formed on an underside of the buffer layer. The reflecting layer reflects light that has downwardly passed through the light guide plate so that the light is introduced again into the light guide plate. A protective layer is formed on an underside of the reflecting layer, and protects the reflecting layer. | 12-01-2011 |
| 20120120682 | ILLUMINATION DEVICE WITH LIGHT GUIDE COATING - This disclosure provides systems, methods and apparatus for providing illumination by using a light guide to distribute light. In one aspect, the light guide includes a light turning film over an optically transmissive supporting layer. The light turning film may be formed of a material deposited in the liquid state. The light turning film may be formed of a photodefinable material, which may be glass, such a spin-on glass, or may be a polymer. In some other implementations, the glass is not photodefinable. The light turning film may have indentations that define light turning features and a protective layer may be formed over those indentations. The protective layer may also be formed of a glass material, such as spin-on glass. The light turning features in the light guide film may be configured to redirect light out of the light guide, for example, to illuminate a display. | 05-17-2012 |
| 20120147627 | LIGHT GUIDE MODULE, BACKLIGHT MODULE AND FABRICATION METHOD OF LIGHT GUIDE MODULE - A light guide module includes a light guide plate and a diffuse reflector. The light guide plate has a light incidence surface, a light exiting surface, and a bottom surface, wherein the light exiting surface is opposite to the bottom surface, and the light incidence surface is connected with the light exiting surface and the bottom surface. The diffuse reflector is secured to the bottom surface of the light guide plate by an adhesive pattern layer, wherein the adhesive pattern layer is formed by a plurality of light-transmissive adhesive gels, and these light-transmissive adhesive gels do not contain any diffusive particles. A backlight module using the light guide module mentioned above and a fabricating method for the light guide module are also provided. | 06-14-2012 |
| 20130070482 | DISPLAY DEVICE AND BACKLIGHT FOR DISPLAY DEVICE - According to one embodiment, a display device includes a light-guiding body, a light source, a wavelength selection transmission layer, and a light control layer. The light-guiding body has a first major surface, a second major surface opposite to the first major surface, and a side face connecting the first major surface and the second major surface. The wavelength selection transmission layer is provided on the second major surface. The first major surface has a plurality of concave portions having inclined faces inclined relative to the first major surface. A ratio of a total area of the plurality of the concave portions projected on the first major surface, relative to an area of the first major surface is 8% to 25%. The plurality of the concave portions is evenly provided in the first major surface. | 03-21-2013 |
| 20130148381 | DISPLAY DEVICE - The present invention aims to provide a display device that allows suppression of occurrence of Newton's rings while allowing reduction in number of required components. The display device of the present invention includes an optical unit including a first main surface, a peripheral surface—and a second main surface disposed to face the first main surface; a display panel and a reflective sheet including a first main plane portion covering the first main surface, a peripheral surface portion covering the peripheral surface, and a second main plane portion extending from the end portion of the peripheral surface portion and located on the second main surface. The display panel is disposed at a distance from the optical unit by sandwiching the second main plane portion between the display panel and the optical unit. | 06-13-2013 |
| 20140003092 | SPREAD ILLUMINATING APPARATUS | 01-02-2014 |
| 20140071712 | BACKLIGHT MODULE AND DISPLAY PANEL - The present invention provides a backlight module and a display panel. The backlight module includes a back plate, a light guide plate and a light source. The back plate disposes a reflection layer on an inner surface thereof. The reflection layer and the back plate are integrally formed. A light enters into the light guide plate from a light incident surface of the light guide plate to be projected toward the inner surface of the back plate, then returns to the light guide plate after being reflected by the reflection layer on the inner surface of the light guide plate, and is emitted from a light emitting surface of the light guide plate. The present invention can not be effected by the external influence to cause deformation and other problems, thereby improving the reflection effect. | 03-13-2014 |
| 20140185323 | ANISOTROPIC HEAT DISSIPATION IN A BACKLIGHT UNIT - A backlight unit with a light source, a light guiding plate, a reflective film and an anisotropic heat dissipation layer is disclosed. At least some embodiments provide a display panel including the backlight unit and methods for reducing the temperature of a backlight unit by the anisotropic heat dissipation layer. | 07-03-2014 |
| 20160062025 | Light Guide Assembly for an LCD or the Like - An apparatus and method for assembling a display device to which is coupled a light guide that has smooth surfaces for light-transmission and at least one surface that is for light scattering and internal reflection. The method includes depositing a reflective coating on that surface, and installing the display device with coupled light guide in an interior of a meter housing or casing. A portion of the casing interior is filled with a component, such as epoxy, for sealing the case interior to protect the display device and light guide against water and dust penetration. All surfaces of the light guide are protected from direct contact with the epoxy. This approach greatly simplifies the assembly process and yields a robust display that also prevents light leakage from the light guide. | 03-03-2016 |
| 20160109643 | Light Source Device, Display Apparatus, and Method of Manufacturing Light Source Device - Provided are a light source device capable of uniformly illuminating, a display apparatus, and a method of manufacturing the light source device. Since a reflection sheet is adhered to a light guide plate through an adhesive layer, deflection thereof is suppressed. Since dot parts are filled in openings of an optical layer, it would be difficult for the dot parts to be distorted by an outer force. In addition, since the dot parts are formed by forming the optical layer and the adhesive layer in a large area in which an occurrence of distortion during forming is minimal, it would be difficult for the dot parts to be distorted during forming the same. Therefore, an occurrence of luminance unevenness caused by the deflection of the reflection sheet or the distortion of the dot parts may be suppressed. From the above result, it is possible to uniformly illuminate by the light source device. | 04-21-2016 |
| 20160170128 | LIGHT GUIDE PLATE AND METHOD FOR THE PRODUCTION THEREOF | 06-16-2016 |
| 20190146144 | BACKLIGHT MODULE AND DISPLAY DEVICE | 05-16-2019 |
| 362625000 | Type of surface | 33 |
| 20090016081 | BACKLIGHT WEDGE WITH ADJACENT REFLECTIVE SURFACES - A backlight includes a visible light transmissive body having a light guide portion and a light input portion. The visible light transmissive body primarily propagates light by TIR and includes a light input surface and a light output surface. The light guide portion has a light reflection surface and a light emission surface. The light input portion has opposing side surfaces that are not parallel. A light source is disposed adjacent to the light input surface and emits light into the light input portion. A specularly reflective layer is disposed adjacent to but not in intimate contact with the opposing side surfaces and reflects more than 80% of visible light incident on the specularly reflective layer. | 01-15-2009 |
| 20090040789 | LIGHTING DEVICE - In the lighting device, cylindrical lenses are provided on a reflection surface side of a light guide plate, and the adjacent cylindrical lenses are connected by a concaved curved surface. | 02-12-2009 |
| 20090161388 | DISPLAY UNIT - A display unit includes a light source and at least one or more transparent display plates. Each transparent display plate has a plurality of fine dimples formed on at least one surface thereof. Light rays from the light source are respectively made incident on the transparent display plates and are reflected by the plurality of fine dimples so that a pattern of at least one of characters, graphics, and symbols is made visually observed uniformly. | 06-25-2009 |
| 20090303746 | EDGE SHADOW REDUCING METHODS FOR PRISMATIC FRONT LIGHT - Embodiments herein relate to light systems designed to reduce Moiré interference while simultaneously reducing dark regions due to the edge shadow effect. For example, configurations of light sources, light guides and turning features may direct light across a display while reducing Moiré interference. | 12-10-2009 |
| 20090316435 | ELECTRONIC DEVICE AND DECORATION ELEMENT THEREOF - An electronic device is provided. The electronic device comprises a housing, a light source and a decoration element. The light source is disposed in the housing to provide a light beam. The decoration element is embedded in the housing and partially exposed on an outer surface of the housing. The decoration element comprises a light entering surface, a reflective surface, a light emitting surface and a plurality of meshed spots. A light beam enters the light guide through the light entering surface, is reflected by the meshed spots, and exits the light guide through the light emitting surface. | 12-24-2009 |
| 20090323373 | Optical plate and backlight module using the same - An exemplary optical plate has a first surface and an opposite second surface. A plurality of parallel elongated arc-shaped groove is defined on the first surface. The second surface of the transparent main body defines a plurality of parallel elongated arc-shaped protrusions and a plurality of parallel elongated V-shaped protrusions. Each arc-shaped protrusions intersects with each elongated V-shaped protrusion. An extending direction of each elongated arc-shaped protrusion intersects with an extending direction of each elongated arc-shaped groove. | 12-31-2009 |
| 20100033989 | LIGHT GUIDE PLATE AND EDGE-LIGHTING TYPE BACKLIGHT MODULE - A light guide plate includes a first surface, a second surface opposite the first surface, a light incident surface, and a plurality of lenticular lenses and microstructure assemblies. The light incident surface is connected with the first surface and the second surface, and light beams enter the light guide plate by the light incident surface. The lenticular lenses are disposed on the first surface. Each of the lenticular lenses is suitable to deflect imaginary light beams that are incident on the first surface in a predetermined direction to form a focus region on the second surface. The microstructure assemblies are disposed on the focus regions for guiding the light beams incident on the focus regions. A plurality of planar regions are formed on the second surface. Each of the planar regions is disposed between two adjacent microstructure assemblies and suitable for totally reflecting the light beams incident thereon. | 02-11-2010 |
| 20100061119 | LIGHT GUIDE PLATE AND BACKLIGHT MODULE USING THE SAME - A light guide plate for using in a backlight module is provided. The light guide plate has a top surface for emitting light, a back surface opposing to the top surface, and at least one light incident surface. The light incident surface in inclined by an angle β1 with respect to the back surface, wherein | 03-11-2010 |
| 20100097825 | Light Guide Plate - A light guide plate has a light emitting surface, a bottom surface opposite to the light emitting surface, a light incident surface, and a side surface opposite to the light incident surface. The light incident and side surfaces are connected between the light emitting and bottom surfaces. Light guide units are disposed on the bottom surface. Each light guide unit extends along a first direction. The first direction is towards the side surface from the light incident surface. Each light guide unit includes geometric patterns and stripe patterns for cascading the geometric patterns. Micro structures are disposed in the geometric patterns and the stripe patterns. Width of the geometric pattern along a second direction perpendicular to the first direction is greater than that of the stripe pattern. The light guide plate improves uniformity of a plane light source emitting from the light emitting surface of the light guide plate. | 04-22-2010 |
| 20100142226 | LIGHT GUIDE FOR A LIGHTING DEVICE - A lighting device comprises a side-light light guide ( | 06-10-2010 |
| 20100165663 | Optical plate 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 elongated, arc-shaped protrusions and a plurality of elongated, V-shaped protrusions protrude from the second surface. An extending direction of the elongated, arc-shaped protrusions intersects with an extending direction of the elongated, V-shaped protrusions. An extending direction of elongated, arc-shaped depressions is substantially parallel with the extending direction of the elongated, arc-shaped protrusions. | 07-01-2010 |
| 20100290252 | LIGHT GUIDE PLATE AND BACKLIGHT MODULE - A light guide plate capable of guiding a light beam from a light emitting device and a backlight module using the light guide plate are provided. The light guide plate includes a light-transmissive substrate and optical structures. The light-transmissive substrate has a first surface, an opposite second surface, and an incident surface connecting the first and the second surface. The light beam enters the light-transmissive substrate through the incident surface and is emitted out of the light-transmissive substrate through the first surface. The optical structures are disposed on the second surface. Each optical structure has a first total internal reflection (TIR) surface, a second TIR surface, and a third TIR surface. The second TIR surface connects the first and third TIR surfaces. Part of the light beam from the incident surface is totally internally reflected by any adjacent two of the first, second, and third TIR surfaces in sequence. | 11-18-2010 |
| 20120014136 | LIGHT GUIDE PLATE AND BACKLIGHT UNIT INCLUDING THE SAME - A light guide plate having a pattern to minimize generation of a dark zone and a backlight unit including the same are disclosed. The light guide plate includes an intaglio pattern consisting of recesses formed in a surface opposite to a light emitting surface thereof to have a cross section having major-axis and minor-axis diameters and depth, the recesses being spaced apart from one another in first and second directions by first and second distances respectively. The density of the intaglio pattern is directly proportional to the major-axis and minor-axis diameters and depth, and is inversely proportional to the first and second distances. The intaglio pattern has the minimum density in a first region adjacent to a light source, and the maximum density in a second region that is the maximum distance from the light source. A density ratio of the maximum density to the minimum density is 900. | 01-19-2012 |
| 20120140522 | Reflecting structure, light-scattering member, light-guiding plate and lighting device - A reflecting structure is provided with a first surface having two side-end portions opposing each other and a plurality of light scatterers, each scattering light, formed on the first surface. In a section perpendicular to an axis located on the first surface between the two side-end portions, the height of each of the light scatterers from the first surface gets smaller from the axis toward the side-end portion. | 06-07-2012 |
| 20120163033 | Backlight Module, Light Guide Device, and Method for Manufacturing Light Guide Plate - A method for manufacturing a light guide plate includes the following steps. At least one dot area and at least one non-dot area are defined on a mask. A lithography and etching process using the mask is performed a mold to form at least one recess having a rough surface on the mold and leave at least one non-etched microstructure on the mold. The recess corresponds to the non-dot area, and the non-etched microstructure corresponds to the dot area. An injection molding process using the mold is performed to form the light guide plate. The light guide plate has at least one protrusion having a rough surface on the light guide plate and at least one indented microstructure in the light guide plate. The protrusion corresponds to the recess, and the indented microstructure corresponds to the non-etched microstructure. | 06-28-2012 |
| 20140119056 | Light Guide Plate and Backlight Module Using the Light Guide Plate - The present invention provides a light guide plate and a backlight module using the light guide plate. The light guide plate includes a bottom surface, a top surface arranged opposite to the bottom surface, and a plurality of lateral surfaces arranged between the bottom surface and the top surface. One of the lateral surfaces forms a light incidence surface. The bottom surface forms a plurality of grid dots having a cross-section that is right angular. The grid dots are formed by recessing the bottom surface of the light guide plate toward the top surface. The grid dots each have an inclined face opposing the light incidence surface. The inclined face is arranged to get away from the light incidence surface by extending upward from the bottom surface. Light entering the light guide plate is reflected by the grid dots to emerge through an emerging surface of the light guide plate. | 05-01-2014 |
| 20140177278 | LIGHT GUIDE MEMBER AND METHOD OF MANUFACTURING LIGHT GUIDE MEMBER - To provide a light guide member such that more uniform brightness can be ensured in a wide region. A light guide member according to the present invention that receives light through side surfaces and outputs the light through main surfaces includes recesses formed by a machine in at least one of the main surfaces in a groove-like or dot-like shape, the recesses having bottom surfaces formed of molten material at the deepest part of the recesses. Thus, there can be provided the light guide member that has the groove-like or dot-like recesses with the bottom surfaces formed by a molten mark and that can output light with more uniform brightness through the main surfaces when a wide region is observed. | 06-26-2014 |
| 20140293654 | ILLUMINATING DEVICE - In one embodiment, a light emitting device includes: a light source which emits light; a light guide portion which has an emission surface which emits light and a back surface which opposes to the emission surface, and which has at the back surface a reflecting portion which the light emitted from the light source enters and which reflects the entering light toward the emission surface; a heat transfer portion which opposes to the back surface of the light guide portion and is provided with an interval which is a wavelength of the light or more being spaced from the back surface; and a support portion which is provided between the reflecting portion and the heat transfer portion, and which keeps the interval between the light guide portion and the heat transfer portion. | 10-02-2014 |
| 20160070051 | LIGHT-GUIDE COUPLER FOR MODULATING ANGULAR AND SPATIAL DISTRIBUTIONS OF LIGHT SOURCE - A light-guide coupler for modulating angular and spatial distributions of a light source is provided. The light-guide coupler includes a transmission body and a microstructure portion. One end of the transmission body defines a first opening. The other end of the transmission body defines a second opening. The width of the transmission body increases in a direction from the first opening to the second opening and forms a curved portion in at least one side plane of the transmission body. The microstructure portion is configured on one plane of the transmission body. An inner reflecting surface is formed in the transmission body and matched to the microstructure portion and curved portion. The inner reflecting surface forms a light transmission path between the first opening and the second opening. | 03-10-2016 |
| 362626000 | Prism | 14 |
| 20080219026 | LIGHT GUIDE PLATE AND METHOD FOR MAKING THE SAME - An exemplary light guide plate includes a light output surface, a light reflective surface opposite to the light output surface, a light input surface interconnecting with the light output surface and the light reflective surface, and a plurality of microstructures formed on the light reflective surface. Each of the microstructures defines a specular reflection surface and a diffuse reflection surface. External light enters the light guide plate via the light input surface, a part of light rays undergo specular reflection at the specular reflection surfaces of the microstructures, and other parts of light rays undergo diffuse reflection at the diffuse reflection surfaces of the microstructures. A backlight module using the light guide plate can have a good optical performance. | 09-11-2008 |
| 20080285310 | ELONGATED ILLUMINATORS CONFIGURATION FOR LCD DISPLAYS - A solid waveguide comprises opposite TIR surfaces further comprising: | 11-20-2008 |
| 20090109704 | 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 surface, a second reflection surface further slanting away from the light emission plane, and a first reflection surface slanting towards the light emission plane to connect to a next gap. The second and first reflection surfaces form a prism element. In one embodiment of the present invention, the reflection structures are more densely arranged as they are more distant from the light source. In an alternative embodiment of the present invention, the reflection structures are arranged uniformly. | 04-30-2009 |
| 20090109705 | Back-light assembly - A back-light assembly for uniformly illuminating large area displays. The back-light assembly includes a uniformly thin waveguide, a reflector and a plurality of light sources evenly distributed along the display area between the waveguide and the reflector. Prismatic facets are provided along the lower surface of the waveguide for effectively coupling light emitted from light sources into the waveguide. | 04-30-2009 |
| 20090180300 | BACKLIGHT ASSEMBLY, LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME, AND METHOD OF MANUFACTURING THEREOF - A backlight assembly includes a light source, a light-guide plate (LGP), a reflective sheet and at least one optical sheet. The light source emits light. The LGP includes a light-incident surface, a light-reflecting surface and a light-emitting surface. The light-incident surface receives the light from the light source. The light-reflecting surface has a plurality of first prism patterns spaced apart from each other and flat portions formed between the first prism patterns, which are substantially perpendicular to the light-incident surface. The light-emitting surface has a plurality of second prism patterns formed thereon. The reflective sheet is disposed below the LGP. At least one optical sheet is disposed on the LGP. | 07-16-2009 |
| 20090257245 | LIGHT GUIDES AND BACKLIGHT SYSTEMS INCORPORATING PRISMATIC STRUCTURES AND LIGHT REDIRECTORS - Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors. | 10-15-2009 |
| 20100157626 | LIGHT GUIDE PLATE, METHOD FOR MANUFACTURING THE SAME AND BACKLIGHT UNIT USING THE SAME - Disclosed are a film-type light guide plate capable of readily securing mass-production and realizing low weight and slimness, a method for manufacturing the same and a backlight unit using the same. The method includes loading a base film on a movable first conveyor belt, coating a liquid ultraviolet curable resin on the first surface of the base film, rotating a surface-treated roll on the coated ultraviolet curable resin to form a prism pattern provided with a first protrusion pattern, and curing the prism pattern using an ultraviolet lamp. | 06-24-2010 |
| 20100277951 | LIGHT GUIDE PLATE, METHOD OF MANUFACTURING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME - A light guide plate includes a light incident surface to which light is incident as incident light, an opposite surface formed opposite to the light incident surface, a light emitting surface through which the incident light is emitted, a rear surface formed opposite to the light emitting surface and including a prism pattern which reflects the incident light to the light emitting surface, and lateral surfaces, wherein a diffuse reflection pattern is formed on at least any one of the light emitting surface and the lateral surfaces to diffuse-reflect light incident to the lateral surfaces, thus rendering a brightness at both the opposite surface and the light incident surface substantially uniform. | 11-04-2010 |
| 20120300498 | LIGHT GUIDE ELEMENT, LIGHT SOURCE MODULE, AND DISPLAY - A light guide element, a light source module, and a display are provided. The display includes a display panel and the light source module. The light source module includes a light source and the light guide element, wherein light emitted by the light source is guided toward the display panel by the light guide element. The light guide element includes a plurality sidewalls and a bottom wall. The sidewalls surround the bottom wall and are connected with each other to form a light entering opening, a light exiting opening, and an inner reflection room. Each of the sidewalls and the bottom wall has at least one reflection surface, wherein the reflection surface faces the inner reflection room. | 11-29-2012 |
| 20130250619 | LIGHT GUIDES AND BACKLIGHT SYSTEMS INCORPORATING PRISMATIC STRUCTURES AND LIGHT REDIRECTORS - Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors. | 09-26-2013 |
| 20140104885 | LIGHT GUIDE PLATE, BACKLIGHT MODULE AND DISPLAY DEVICE - Embodiments of the present invention provide a light guide plate, a backlight module and a display device. The light guide plate having at least one side for placing a light source assembly comprising a plurality of light source units, wherein a plurality of microstructure protrusions are provided on the inner side of the bottom surface of the light guide plate, in regions close to the light source assembly, and the microstructure protrusions are provided with at least one reflective surface, which faces toward the regions of the light guide plate corresponding to the gaps between the light source units. | 04-17-2014 |
| 20140133183 | LIGHT GUIDING MEMBER, LIGHT EMITTING DEVICE, STATIC ELIMINATING DEVICE, AND IMAGE FORMING APPARATUS - A light guiding member includes a first end portion including an incident surface on which light emitted from a light source is incident; an emitting surface that extends in such a direction as to be at an angle to the incident surface, the emitting surface emitting the light that has been emitted from the light source and that has entered from the incident surface to a target object; and a second end portion including a reflection portion and a refraction portion, the reflection portion having a reflection surface that reflects the light that has entered from the incident surface in a direction away from the emitting surface, the refraction portion reflecting the reflected light that has been reflected by the reflection surface toward the incident surface and then refracting the light toward the emitting surface. | 05-15-2014 |
| 20150085530 | LIGHT GUIDE - Provided a light guide ( | 03-26-2015 |
| 20160377792 | LIGHT GUIDE PLATE - A light guide plate includes a diffusing surface that diffuses incident light having a concave cylindrical surface shape with curvature in a first direction, and an exit surface having a convex cylindrical surface shape with curvature in the first direction. The light guide plate is constituted such that a pattern provided behind the diffusing surface is visible from the exit surface side. The light guide plate has an incident surface on at least one end of the light guide plate in the first direction, and prisms that are formed in the diffusing surface and reflect visible light from a light source that enters the light guide plate from the incident surface toward the exit surface. Each prism has a reflecting surface oriented toward the incident surface side, and an angle between the reflecting surface and the diffusing surface increases, the further the prism is from the incident surface. | 12-29-2016 |
