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Light Guide patents



      
           
This page is updated frequently with new Light Guide-related patent applications. Subscribe to the Light Guide RSS feed to automatically get the update: related Light RSS feeds. RSS updates for this page: Light Guide RSS RSS


Semiconductor laser device

Mitsubishi Electric

Semiconductor laser device

Light guide element and lamp for controlling light beam angle

Radiant Opto-electronics

Light guide element and lamp for controlling light beam angle

Light guide element and lamp for controlling light beam angle

Canon Components

Image sensor unit and image reading apparatus

Date/App# patent app List of recent Light Guide-related patents
01/22/15
20150025181
 Polystyrene-based resin composition and light guide plate formed by molding same patent thumbnailnew patent Polystyrene-based resin composition and light guide plate formed by molding same
Provided are: a polystyrene-based resin composition which has low water absorption, excellent suppression of warping or dimensional changes in a molded article, and excellent optical properties, and is suitable for producing a shaped light guide plate of excellent mold separation performance; and a light guide plate obtained by molding the polystyrene-based resin composition. This polystyrene-based resin composition contains 100 parts by mass of a styrene-based resin and 0.02 to 0.2 parts by mass of a phosphorus-based antioxidant, wherein the amount of 4-t-butylcatechol contained per 1 g of styrene-based resin is 1 to 6 μg..
Ps Japan Corporation
01/22/15
20150023632
 Optical electrical module used for optical communication used for optical communication patent thumbnailnew patent Optical electrical module used for optical communication used for optical communication
An optical electrical module includes a first substrate, a second substrate, a bearing portion and at least one optical electrical element. The second substrate is combined with the first substrate and has a reflective surface facing the first substrate.
Centera Photonics Inc.
01/22/15
20150023380
 Semiconductor laser device patent thumbnailnew patent Semiconductor laser device
A semiconductor laser device includes a first conductivity type semiconductor substrate, a first conductivity type cladding layer, a first light guide layer, an active layer, a second light guide layer, and a second conductivity type cladding layer laminated on the semiconductor substrate in that order. The semiconductor laser device supports at least one of a first-order and higher-order mode of oscillation in the semiconductor laser in crystal growth direction of the active layer.
Mitsubishi Electric Corporation
01/22/15
20150023059
 Backlight module patent thumbnailnew patent Backlight module
The present invention provides a backlight module, which includes: a backplane (2), a light guide plate (4) arranged in the backplane (2), a backlight source (6) mounted on the backplane (2), and a heat dissipation film (220) mounted on the backplane (2). The heat dissipation film (220) is made of graphene and has a thickness of 0.01-0.05 mm.
Shenzhen China Star Optoelectronics Technology Co. Ltd.
01/22/15
20150023058
 Backlight unit and display apparatus using the same patent thumbnailnew patent Backlight unit and display apparatus using the same
Disclosed are an illumination system and a display apparatus using the same. The illumination system includes a light guide plate; grooves disposed in the light guide plate, each of the grooves having at least one inclined surface; light source modules disposed within the grooves, wherein the light source modules comprise, substrates and light sources disposed on the substrates; and stoppers disposed between a first surface of each of the light sources and the at least one inclined surface of each of the grooves, the first surface of each of the light sources facing the at least one inclined surface.
Lg Innotek Co., Ltd.
01/22/15
20150023057
 Display device patent thumbnailnew patent Display device
A display device includes a display panel, a light guide plate which is disposed under the display panel and includes a first side surface, a second side surface connected to one end of the first side surface, and a third side surface connected to the other end of the first side surface, a first light source disposed to face the first side surface and including a plurality of light emitting devices including a first light emitting device to emit a first color light and a second light emitting device to emit a second color light, and a first reflecting member disposed on the second side surface and having a complementary color to a color of the light emitted from a light emitting device, which is disposed closest to the one end of the first side surface, among the plurality of light emitting devices.. .
Samsung Display Co., Ltd.
01/22/15
20150023056
 Backlight module and liquid crystal display patent thumbnailnew patent Backlight module and liquid crystal display
The present invention discloses a backlight module and a liquid crystal display. The light guide plate is formed with hollow structures therein, and the hollow structures includes a first reflecting surface and a second reflecting surface; the first reflecting surface has a first inclination; the second reflecting surface has a second inclination; based on the first inclination, the first reflecting surface reflects light emitting toward the first reflecting surface; and based on the second inclination, the second reflecting surface reflects light emitting toward the second reflecting surface..
Shenzhen China Star Optoelectronics Technology Co., Ltd.
01/22/15
20150023053
 Backlight unit including color-compensating diffuser and display device including the same patent thumbnailnew patent Backlight unit including color-compensating diffuser and display device including the same
A backlight unit includes a light source. A light guide plate receives light supplied from the light source at an incident light part of the light guide plate.
Samsung Display Co., Ltd.
01/22/15
20150023052
 Two-sided light guide patent thumbnailnew patent Two-sided light guide
A multi-display system includes a single, two-sided backlight assembly between the display panels. The two-sided backlight assembly is able to emit light in two light paths generally 180 degrees apart—one light path passes through one of the display panels and another light pass through the other of the display panels.
Unipixel Displays, Inc.
01/22/15
20150023050
 Backlight module patent thumbnailnew patent Backlight module
A backlight module includes a light source unit, an optical fiber, a diverging lens and a light guide unit. The light source unit includes a first light source emitting red light, a second light source emitting green light and a third light source emitting blue light.
Hon Hai Precision Industry Co., Ltd.
01/22/15
20150023048
new patent

Apparatus and reducing laser speckle


An apparatus for reducing laser speckle cooperates with a laser light source and comprises a light guide tube and a vibration element coupled on the light guide tube. The light guide tube includes an input member corresponding to the laser light source, an output member far away from the laser light source, and a chamber allowing a laser beam which is emitted by the laser light source to perform total reflection inside.
National Yunlin University Of Science And Technology
01/22/15
20150023027
new patent

Light guide element and lamp for controlling light beam angle


A light guide element and a lamp are described. The light guide element has a length and an angle of total reflection.
Radiant Opto-electronics Corporation
01/22/15
20150023003
new patent

Backlight module and liquid crystal display


A backlight module and a liquid crystal display are provided. The backlight module includes a first light-emitting unit and at least one second light-emitting unit.
Shenzhen China Star Optoelectronics Technology Co. Ltd.
01/22/15
20150022870
new patent

Image sensor unit and image reading apparatus


An image sensor unit includes a sensor substrate on which a plurality of photoelectric conversion elements are mounted, a light source that includes light-emitting elements, for illuminating a document, a light guide that guides light from the light source from one end face and linearly illuminates the document, a rod lens array imaging reflected light from the document on the sensor substrate, and a frame holding each of these elements. The frame includes a spacer provided in proximity to the light source.
Canon Components, Inc.
01/22/15
20150022761
new patent

Light guide plate transfer molding method, light guide plate, and planar light source apparatus


A light guide plate transfer molding method for performing transfer molding of a light guide plate using a first mold and a second mold, includes performing, on a resin material, transfer molding of a first pattern and a second pattern that are provided on a transfer face of the first mold. The first pattern changes with a specific interval p serving as one period.
01/22/15
20150022760
new patent

Light guide assembly, backlight module and liquid crystal display


A light guide assembly, a backlight module and a liquid crystal display (lcd) are provided. The backlight module includes a back plate light guide plate, an adhesive member and a light source.
Radiant Opto-electronics Corporation
01/22/15
20150022759
new patent

Display with radioluminescent backlight unit


An electronic device is provided with a display such as a liquid crystal display mounted in an electronic device housing. The display may be provided with a backlight unit.
Apple Inc.
01/22/15
20150022758
new patent

Collimating light guide plate, diffusing unit, and display apparatus employing the same


A diffusing unit includes: a polarizing plate; and a diffusing layer integrally provided on a surface of the polarizing plate without an air layer therebetween. By using a display apparatus employing a collimating light guide plate and the diffusing unit, the optical performances such as resolution and viewing angle can be improved.
Samsung Display Co., Ltd.
01/22/15
20150022752
new patent

Liquid crystal display assembly and electronic device


The light guide plate of the backlight assembly is fixed at the top portion of the supporting frame, the liquid crystal display module is stacked up on the light guide plate and is disposed on the top portion of the supporting frame, wherein a circuit board is applicable to mount to the bottom portion of the supporting frame and electrically connects to the liquid crystal display module, and the circuit board faces a rear side of the backlight assembly opposite to the display surface. An electronic apparatus including the liquid crystal display assembly is also provided..
01/22/15
20150022746
new patent

Backlight device and image display apparatus using the same


A backlight device and an image display apparatus which are capable of controlling the degree of diffusion of emitted light are provided. The backlight device according to the present disclosure includes: a light source; a light guide plate that causes surface emission of light emitted from the light source; a directivity control film that is provided on a light-emitting side of the light guide plate, and causes the light emitted from the light guide plate to have directivity; and a liquid crystal diffusion element that is switchable between a first state in which the light emitted from the directivity control film is transmitted as it is, and a second state in which the light emitted from the directivity control film is diffused..
Panasonic Intellectual Property Management Co., Ltd.
01/22/15
20150022457
new patent

Key assembly for electronic device


A key assembly for an electronic device that includes a keycap defining a key that has a non-opaque portion to identify the key that is backlit. The assembly includes a light guide positioned in spaced relation to the keycap.
Blackberry Limited
01/15/15
20150016147

Led tube with light reflective face


An led tube includes a light guide, an led and a reflector. The light guide includes a light incident face at an end thereof and a light emerging face adjacent to the light incident face.
Hon Hai Precision Industry Co., Ltd.
01/15/15
20150016146

Illuminating device and liquid crystal display apparatus


An illuminating device includes light emitting elements extending in a lengthwise direction and a light guide plate having a first principal surface for emitting light from the light emitting elements and a second principal surface facing the first principal surface. The light guide plate has light guide regions corresponding to the light emitting elements.
Seiko Epson Corporation
01/15/15
20150016145

Display device


A backlight unit includes a light source having an emission region, a wiring board having the light source mounted thereon, a light guide plate having a side surface into which light from the light source enters, and a front surface from which the light exits, a light shielding adhesive tape adhering to the wiring board, and an optical sheet which overlaps with the front surface of the light guide plate. The front surface of the light guide plate includes an effective region serving as a planar light source and a light entering region ranging from the side surface to the effective region.
Japan Display Inc.
01/15/15
20150016143

Lighting assembly


A lighting assembly includes a light guide having opposed major surfaces between which light propagates by total internal reflection and a light input edge. The light assembly also includes a light engine.
Rambus Delaware Llc
01/15/15
20150016141

Light emitting panel assemblies and light guides therefor


A light emitting panel assembly is provided. The assembly includes: a light source; a transition area including a first major side and a second major side, wherein at least one of the first major side and the second major side includes a plurality of vertically extending flutes, wherein the flutes extend at least a portion of the height of the transition area; and an emission area in optical communication with the transition area, the emission area including light extraction elements..
Fluxwerx Illumination Inc.
01/15/15
20150016140

Illumination device with an extended usable spectrum


An illumination device for irradiating objects with electromagnetic radiation is provided. The illumination device includes at least one light guide and a radiation source that emits electromagnetic radiation in the spectral region from 320 nm to 420 nm into the light guide.
Schott Ag
01/15/15
20150015924

Illuminating apparatus, image sensor, and methods for manufacturing illuminating apparatus and image sensor


An illuminating apparatus includes a columnar light guide, a board having a light source fastened on one surface thereof, and a holder. The holder is formed with a through-hole into which an end of the light guide in the columnar center axis direction is fitted to hold the light guide, and a catch that catches and holds the board with the light source facing the end surface of the light guide in the columnar center axis direction in the through-hole..
Mitsubishi Electric Corporation
01/15/15
20150015798

Image display device and television reception device


A liquid crystal display device (10) is provided with the following: an led (17); a liquid crystal panel (11); a light guide plate (16) disposed so as to overlap the liquid crystal panel (11); an optical member (15) disposed between the liquid crystal panel (11) and the light guide plate (16); a holding member (hm) having a frame (13) and a chassis (14) for holding in a sandwiched manner the liquid crystal panel (11), the optical member (15) and the light guide plate (16); a first object of positioning determination unit (33) disposed at the edge of the light guide plate (16); a positioning determination unit (31) disposed on the frame (13) and for determining the position of the light guide plate (16) in a direction following the plate surface by causing uneven engagement of the light guide plate with respect to the first object of positioning determination unit (33); and a light-shielding sheet (35) for blocking direct incidence of light from the first object of positioning determination unit (33) on the liquid crystal panel (11) by covering at least a portion of a gap (c1) formed between the positioning determination unit (31) and the first object of positioning determination unit (33) and by being provided between the light guide plate (16) and the liquid crystal panel (11).. .
Sharp Kabushiki Kaisha
01/15/15
20150015470

Image projection apparatus and image display system


An image projection apparatus configured to project an image on the projection surface includes a light modulation unit configured to modulate light from a light source unit, an image processing unit configured to generate an image signal to be input to the light modulation unit, disposed in the image projection apparatus and, a light intensity measuring unit configured to measure an intensity of part of the modulated by the light modulation unit, a light guide optical system configured to guide the part of the light to the light intensity measuring unit and another part of the light to the projection surface, and a correction unit configured to correct brightness of the image projected on the projection surface based on a video signal supplied to the image projection apparatus and a measurement result of the light intensity measuring unit.. .
Canon Kabushiki Kaisha
01/15/15
20150015351

Relay


A relay in which a relay body and a light source are incorporated in a case, the light source emitting light in conjunction with operation of the relay body, wherein a light guide is provided inside an outer surface of the case, the light guide is configured to take in the light emitted from the light source, to guide the light to a portion parallel to a top panel of the case, and to spread the light in the portion parallel to the top panel, and an optical pattern is provided in at least one of a top surface and a bottom surface of the portion parallel to the top panel, the optical pattern is configured to output, the light guided in the light guide to the portion parallel to the top panel, to outside the case from a top surface of the top panel.. .
Omron Corporation
01/15/15
20150014802

Apparatus and fabricating a light guiding grid


A light guide grid can include a grid structure having a plurality of intersecting grid lines, each grid line having a width w, and a plurality of openings for photosensor elements between intersecting grid lines. The grid structure has a diagonal grid width between two adjacent ones of the plurality of openings in a diagonal direction.
Taiwan Semiconductor Manufacturing Co., Ltd.
01/15/15
20150014135

Illuminated keyboard


An illuminated keyboard comprises a fixing sheet, a membrane switch circuit module, a supporting plate, a light guide plate, a sensing circuit, a sensing chip, a light-emitting element, and an illumination circuit board. The sensing circuit is formed on the fixing sheet or the membrane switch circuit module.
Primax Electronics Ltd.
01/08/15
20150012072

Vascular access device with integrated light guide


A system for irradiation of a vascular space and its contents is presented. An adapter device having a vascular access end and an optical interface end can include a waveguide affixed within a waveguide lumen and extending outwardly through the vascular access end.
Uvl Blood Labs, Inc.
01/08/15
20150010716

Sheetless backlight module, a light guide plate for the sheetless backlight and manufacturing method thereof


A sheetless backlight module and a light guide plate thereof are provided. The light guide plate includes a body and a plurality of light scattering units.
Au Optronics Corporation
01/08/15
20150009783

Illumination device, display apparatus, and timepiece


There is provided an illumination device including: a light guide plate in which a light diffusion pattern of diffusing incident light is formed to have density that is coarse on one side and gets denser toward the other side; a first light source which is provided on a side corresponding to the one side of the light diffusion pattern in the light guide plate; and a second light source which is provided on a side corresponding to the other side of the light diffusion pattern in the light guide plate.. .
Casio Computer Co., Ltd.
01/08/15
20150009713

Display device


A display device includes: a light guide member under the display panel and including a light incident surface; a heat discharge member including a heat discharge surface which extends in a first direction opposite to the light incident surface of the light guide member, and a first flat surface which extends in a second direction from the heat discharge surface; and a light source on the heat discharge member, which provides light to the light incident surface and includes a light emitting device on the heat discharge surface and including a light emitting surface opposite to the light incident surface, a circuit board on the first flat surface of the heat discharge member and electrically connected to the light emitting device, and a heat discharge portion on the heat discharge member and which couples the light emitting device to the heat discharge surface of the heat discharge member and discharges a heat generated from the light emitting device.. .
Samsung Display Co., Ltd.
01/08/15
20150009712

Display device having improved illumination characteristics


A display device includes a display panel including a display area in which an image is displayed, and a light unit that includes: a light guide plate including a light receiving surface and a light emitting surface; a light source spaced apart from the light receiving surface while facing the light receiving surface and overlapping the display area; and a light diffusion member extending between the light receiving surface and the light source. The light diffusion member includes at least one of a first pattern formed on a surface of the light diffusion member facing the light emitting surface, and a second pattern formed on another surface of the light diffusion member, thereby implementing uniform brightness across the whole surface of the display panel..
Samsung Display Co., Ltd.
01/08/15
20150009711

Light guide plate with sharp-edged prisms and side-edge type surface-emission optical apparatus including the same


In a light guide plate having a light incident surface, a light distributing control surface perpendicular to the light incident surface and a light emitting surface opposing the light distributing control surface, a flat mirror-finish portion is provided on a first area of the light distributing control surface, and a prism sequence is provided on a second area of the light distributing control surface where the flat mirror-finish portion is not provided. The prism sequence is protruded with respect to the flat mirror-finish portion.
Stanley Electric Co., Ltd.
01/08/15
20150009710

Lighting device and flat panel display having the lighting device


Provided are a lighting device and a flat panel display having the lighting device, the lighting device, including: a support substrate; a circuit board on the support substrate; light emitting devices mounted on the circuit board; and a light guide plate having a protruding portion protruding to a remaining region except for a region in which the light emitting devices are disposed.. .
Lg Innotek Co., Ltd.
01/08/15
20150009709

Light guide plate and backlight unit


This invention relates to a light guide plate and a backlight unit, and more particularly, to a light guide plate and a backlight unit, wherein the light guide plate includes a light incident part to which light is incident from a light source located at a lateral side of the light guide plate and which is imparted with patterns, in which the patterns are formed such that a pattern-dense region and a pattern-sparse region are periodically repeated, and the pattern density between the pattern-dense region and the pattern-sparse region varies in a gradation, thus increasing luminance uniformity without affecting the luminance.. .
Kolon Industries, Inc.
01/08/15
20150009707

Lighting device comprising a light guide and a support


A lighting device (30) comprises a side-light light guide 1′ located in a support (2) that has an elongate opening for the passage of light emitted by the light guide. The support (20) is shaped to provide contact edges (24) and the only physical engagement between the support and the light guide is along those contact edges.
3m Innovative Properties Company
01/08/15
20150009705

Light emitting device and lighting device


According to an embodiment, a light emitting device includes: a light emitting section that has a light emitting element; a wavelength conversion section that absorbs light radiated from the light emitting section and emits the light having a wavelength different from that of the light radiated from the light emitting section; and a light guide section that is provided between the light emitting section and the wavelength conversion section and to propagate the light radiated from the light emitting section, and includes a first irradiation surface which radiates the propagated light toward a position in which the wavelength conversion section is provided, and a second irradiation surface which radiates the propagated light toward a position different from the position in which the wavelength conversion section is provided.. .
Toshiba Lighting & Technology Corporation
01/08/15
20150009696

Lighting device, lighting fitting, and vehicle


A lighting device including: a light guide which is elongated and has a first end portion with an entrance surface; and a light source provided facing the entrance surface of the light guide, wherein the light guide includes: a reflective surface between the first end portion and a second end portion of the light guide; and an exit surface opposite the reflective surface, the reflective surface includes a plurality of grooves which extend in a direction oblique to a direction perpendicular to an extending direction of the light guide in a first region between the first end portion and the second end portion, and the exit surface includes a concave portion which extends from the first end portion toward the second end portion.. .
Panasonic Corporation
01/08/15
20150009687

Structure for guiding light into guide light plate to conduct total internal reflection


A structure for guiding light into a light guide plate to conduct total internal reflection comprises a guide light plate and a prism; the prism is integrated with the guide light plate or joined to the guide light plate with an optical adhesive layer; the horizontal surface of the prism is parallel to the upper and lower surfaces of the guide light plate; the maximum angle between the horizontal surface and the slant surface of the prism is only 20 degrees to reduce the thickness of the prism greatly to meet requirements of lightness, thinness, shortness, and smallness for the electronic product; due to a special configuration of the prism and a special arrangement between the guide light plate and the prism, the most part of the light shot to the prism by the light source with any projecting angle is guided into the guide light plate to propagate the total internal reflection such that the light has an intensity capable of being sensed.. .
Era Optoelectronics Inc.
01/08/15
20150009686

Light mixing chamber for use with light guide plate


A light mixing chamber includes a housing having a channel formed therein, with the channel exposed to an exterior of the housing. A chamber is formed in the housing, and an aperture formed in the housing connects the chamber to the channel.
Qd Vision, Inc.
01/08/15
20150009648

Backlight light guide


A backlight light guide comprises a generally planar structure having a light guide layer having a surface that includes a spaced array of extractors, a backside reflective layer, a low refractive index coupling layer disposed on an opposite major surface of the light guide layer, and a reflective polarizer to provide recycling of unused light.. .
3m Innovative Properties Company
01/08/15
20150009586

Light guides having enhanced light extraction


Lightguides, devices incorporating lightguides, processes for making lightguides, and tools used to make lightguides are described. A lightguide includes light extractors arranged in a plurality of regions on a surface of the lightguide.
3m Innovative Properties Company
01/08/15
20150009494

Optical touch device


An optical touch device with a detecting area includes light guide components, a light source module, a light detecting component and an auxiliary light guide component. Each light guide component includes a first light emitting surface.
Pixart Imaging Inc.
01/08/15
20150009451

Displays with reflective polarizers


An electronic device may be provided with a display mounted in a housing. The display may include a liquid crystal display module and a reflective polarizer having an in-plane optical axis.
Apple Inc.
01/08/15
20150009449

Liquid crystal display device


A liquid crystal display device including: a liquid crystal panel 2; a diffuser 3 provided behind the liquid crystal panel 2; a light guide member 4 provided behind the diffuser 3; and a case supporting the liquid crystal panel 2, the diffuser 3, and the light guide member 4, where the case includes an opening at the back, the light guide member 4 is provided covering the opening, and the light guide member 4 includes a first prism 7 including an incident surface 8 on which outside light from above is incident, and a first slope surface 9 provided below the incident surface 8, and reflecting light incident from the incident surface 8 and on which outside light from behind is incident, the liquid crystal display device being able to make use of outside light efficiently.. .
Eizo Corporation
01/08/15
20150009419

Lighting device, display device, and television device


A backlight unit (lighting device) 12 includes a chassis 14, an led (light source) 17, a light guide plate (light guide member) 19, a duct member 22, and dissipative led attachment portion (dissipative light source attachment portion) 30. The chassis 14 includes a light exit portion 14c through which light exits.
Sharp Kabushiki Kaisha
01/08/15
20150009115

Optical assembly, backlight unit including the same, and display apparatus including the backlight unit


An optical assembly includes a plurality of light sources emitting light in a first direction at a predetermined orientation angle, and a light guide panel having a light incident section and a light emitting section. The light incident section has a first surface to receive the light emitted from the light sources in the first direction and the light emitting section is to emit light received from the light incident section in a second direction.
Lg Innotek Co., Ltd.


Popular terms: [SEARCH]

Light Guide topics: Light Guide, Light Guide Plate, Liquid Crystal Display, Liquid Crystal, Over The Air, Electric Conversion, Photoelectric Conversion, Display Panel, Optical Sensor, Terminal Equipment, Modulation, Microscopy, Led Substrate, Partitioning, Ceramic Substrate

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This listing is a sample listing of patent applications related to Light Guide for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Light Guide with additional patents listed. Browse our RSS directory or Search for other possible listings.
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