|| List of recent Light Guide-related patents
| Illuminating device, liquid crystal display device, electronic device, and manufacturing light guide panel|
When first grooves are formed by irradiating a lower surface facing a light outgoing surface of a light guide plate for an illuminating device with laser beams, an outer circumferential region is firstly irradiated with the laser beams to form second grooves. Then, the second grooves are inspected.
Seiko Epson Corporation
| Light guide plate, making the same, backlight module, and display device|
Embodiments of the invention provide a light guide plate comprising a light guide layer and a reflective layer; a lower surface of the light guide being a reflective surface; an upper surface of the light guide layer being a stepped surface and comprising an upper step surface, a lower step surface and an inclined surface connecting the upper step surface and the lower step surface; wherein the lower step surface is a light exiting surface and the reflective surface is coated on the inclined surface. Embodiments of the invention further provide a method for manufacturing the light guide plate, a backlight module provided with such a light guide plate, and a display device provided with such a backlight module..
Beijing Boe Optoelectronics Technology Co., Ltd.
| Light source device and electronic apparatus|
A light source device includes: a light source; a package that houses the light source and has an opening section configured to emit light from the light source; a light reduction unit provided on the opening section and configured to reduce the light emitted from the opening section; and a light guide plate having: an incidence surface configured such that the light reduced by the light reduction unit is incident on the incidence surface; a light guide section configured to guide the light which is incident on the incidence surface; and an emission surface configured to emit the light guided by the light guide section.. .
| Backlight module and liquid cyrstal display device including the same|
The present disclosure relates to a backlight module and a liquid crystal display device including the backlight module. The backlight module includes a light guide plate and a planar reflecting sheet arranged below the light guide plate, wherein a plurality of lattice points are provided on the upper surface of the light guide plate so that the upper surface forms a light-emitting surface, and a plurality of cylindrical projections in contact with the planar reflecting sheet are formed on the lower surface of the light guide plate.
Shenzhen China Star Optoelectronics Technology Co., Ltd
| Edge light-type surface light source device and illumination device|
A surface light source device (10) includes: a light guide plate (120); and a plurality of led light source substrates (140) each emitting light into the light guide plate (120) through a side surface of the light guide plate (120), the led light source substrates (140) (i) being provided at a pair of sides of the light guide plate (120), the pair of sides facing each other and (ii) having a length shorter than a length of each of the pair of sides at which the plurality of led light source substrates (140) are provided.. .
Sharp Kabushiki Kaisha
| Lighting device|
A lighting device may be provided that includes: a body; a first light source and a second light source, which are disposed on the body and are disposed symmetrically with each other with respect to a central axis of the body; a first light guide unit which is disposed on the first light source and is coupled to the body; and a second light guide unit which is disposed on the second light source and is coupled to the body. The first light guide unit and the second light guide unit are disposed symmetrically with each other with respect to the central axis of the body..
Lg Innotek Co., Ltd.
| Backlight source and display device|
Embodiments of the invention provide a backlight source and a display device. An aperture is formed in a frame of the backlight source.
Tianma Micro-electronics Co., Ltd.
A keyboard includes a transparent board, keyswitches, and a backlight module. The keyswitches could move upward and downward relative to the transparent board.
| Light reflecting member, light beam extension device, image display device, and optical device|
An image display device includes an image generating device, a light guide unit which includes a light guide plate and first and second deflection sections, and a light beam extension device which extends light incident from the image generating device, along a z direction when an incident direction of light incident on the light guide plate is set to be an x direction and a direction of propagation of light in the light guide plate is set to be a y direction, and emits the light to the light guide unit, wherein the light beam extension device includes a first reflecting mirror on which light from the image generating device is incident, and a second reflecting mirror which emits light incident from the first reflecting mirror to the light guide unit, and each of the first and second reflecting mirrors has a light reflecting surface having a sawtooth-shaped cross-sectional shape.. .
| Optical element, image display device and manufacturing same|
An optical element includes a light guide plate that has therein a light transmissive flat plate member on which a transflective layer is formed, and a layer of a light transmissive adhesive or a light transmissive resin layer that uniformly covers the light guide plate. The refractive index of the layer of the adhesive or the resin layer is set to a refractive index different from that of the light guide plate.
Seiko Epson Corporation
Backlight module and liquid crystal display module using same
The present invention provides a backlight module and a liquid crystal display module using the backlight module. The backlight module includes: a backplane (2), a backlight source (4) mounted in the backplane (2), and a light guide plate (6) mounted in the backplane (2).
Lighting device, display device, and television device
A liquid crystal display device 10 includes leds 17, a light guide plate 16, a mating portion 33, a positioning portion 34, a heat dissipation member 19 on which the leds 17 are mounted, and a restriction portion 35. The light guide plate 16 includes a peripheral surface facing the leds 17 and configured as a light entrance surface 16b through which light from the leds 17 enters and a plate surface configured as a light exit surface 16a through which light exits.
Sharp Kabushiki Kaisha
Touch-sensing display panel
A touch-sensing display panel, comprising a plurality of image-forming pixel elements; a planar light guide with a first refractive index, having a front surface forming a touch-sensing region and an opposite rear surface facing the pixel elements; a plurality of light emitters arranged at a peripheral region of the panel to emit light into the light guide for propagation therein through total internal reflection; a plurality of light detectors disposed at the peripheral region for receiving light from the light guide; and an optical layer disposed at the rear surface of the light guide to cover a plurality of the image-forming pixel elements in at least a central region of the panel, wherein said optical layer is configured to reflect at least a part of the light from the emitters impinging thereon from within the light guide.. .
Flatfrog Laboratories Ab
Semiconductor light emitting device and manufacturing the same
Provided is a semiconductor light emitting device 1 includes a semiconductor stacked layer 2 having a light extraction surface 3a perpendicular to a stacked surface of the semiconductor stacked layer 2, a light transmissive light guide member 3 disposed on the semiconductor stacked layer 2, a light reflective member 4 disposed on the light guide member 3, and a light reflective package 5 which has an open portion corresponding to the light extraction surface 3a and surrounds peripheral surfaces of the semiconductor stacked layer 2.. .
An image sensor including: light guides for irradiating light onto an irradiated object; a lens that focuses reflected light that was reflected by the irradiated object; a sensor that receives the reflected light that was focused by the lens; and a housing. The housing houses or holds the light guides, the lens, and the sensor, and is formed by integrating a housing metal portion and a housing resin portion..
Mitsubishi Electric Corporation
Systems and methods for bio-mass energy generation
A closed loop system for generating energy is described herein. The closed loop system can include a solar collector, a tank, and the combustor.
Image forming apparatus, light guide member, and electricity removing device
An image forming apparatus includes a light source, a cleaning portion, and a light guide member. The light source irradiates an image carrying member with light to remove electricity from a surface of the image carrying member after formation of an electrostatic latent image thereon.
Developer amount detector, developing device, process unit, and image forming apparatus
A developer amount detector to detect an amount of developer inside a developer container includes a light-emitting element; a light-receiving element; a first light guide including a first end disposed to face the light-emitting element and a second end disposed inside the developer container, covered with a translucent cover including a light-emitting face; a second light guide including a first end disposed to face the light-receiving element, a second end disposed inside the developer container, covered with a translucent cover including a light-receiving face to face the light-emitting face across a gap; and a cleaner including a sliding portion to slidingly contact the light-emitting face and the light-receiving face. The cover of each of the first and second light guides includes a material lower in chargeability with the sliding portion than a material of a body of each of the first and second light guides..
An earbud cover is configured to be removably attached to, and at least partially cover, an audio earbud. The removable earbud cover includes at least one light guide configured to guide light from at least one optical emitter associated with the audio earbud to a region of a body of a subject wearing the audio earbud and/or guide light from the body of the subject to at least one optical detector associated with the audio earbud.
Illumination apparatus, manufaturing light guide plate, back light module and manufacturing the same
A method for manufacturing a light guide apparatus includes the following steps. A first mold and a second mold are provided.
Backlight frame and backlight module
The present disclosure relates to a backlight frame including a frame body, which has a first and a second side wall opposite to each other, and a third and a fourth side wall opposite to each other, wherein at least one first protrusion is arranged in the frame body close to the first side wall, at least one second protrusion is arranged wall in the frame body close to the second side, at least one third protrusion is arranged in the frame body close to the third side wall, and at least one fourth protrusion is arranged in the frame body close to the fourth side wall. The first, second, third and fourth protrusions together define a placement area for disposing a light guide plate.
A backlight module including a light guide plate is disclosed. The light guide plate has a light emitting plane, a bottom plane opposite to the light emitting plane and a light incident plane connecting the light emitting plane and the bottom plane, a plurality of arc protrusions disposed on the first light incident plane; and a transparent layer disposed upon each of the arc-protrusions.
Backlight module and display device
A backlight module and a display device are provided. The backlight module includes a light guide, a bottom frame, and a first light bar.
Illumination device, and display device
The present invention aims at providing an illumination device and a display device that can suppress uneven brightness while improving light use efficiency and brightness. The illumination device includes a plurality of light sources arranged next to each other, a light guide member that guides light from the light sources, and protrusions that protrude towards the respective light sources from an end face of the light guide member.
Light guide body, light emitting apparatus, and amusement machine
A light guide body configured to guide light from a light source that enters the light guide body has a light exit surface having at least one light emitting region from which light from the light source is emitted, and a plurality of reflection patterns arranged in a reflection region of a counter surface facing the light exit surface. The reflection region is a region corresponding to the at least one light emitting region.
Direct type backlight module
A backlight module includes a light guide assembly and a light source assembly. The light guide assembly includes a back cover, a reflective sheet, a light guide plate, and an optical film.
Display device and backlight module
A display device and a backlight module thereof are provided. The display device comprises a backlight module and a panel.
Optical constructions incorporating a light guide and low reflective index films
Optical constructions use a low index of refraction layer disposed between a low absorption layer and a high absorption layer to increase confinement of light to the low absorption region of the optical constructions. Low index layers can be used in optical constructions that have multi-tiered light confinement.
Lighting assembly with configurable illumination profile
A lighting assembly includes an edge-lit light guide and a light redirecting member. Light extracting elements at the light guide extract light from the light guide as intermediate light.
Illumination device and display device
Provided are an illumination device capable of improving the uniformity in brightness of the illumination light, and a display device using the same. An illumination device is provided with: a plurality of light sources arranged in a row in one direction; and a light guide plate which has, along a side edge face, a light receiving face facing the light source, guides light entering through the light receiving face, and outputs illumination light from a light emitting surface disposed on the front surface; the light guide plate having a plurality of prisms and a plurality of prisms provided in an indented manner on the front or rear surface and arranged in a row along the longitudinal direction of the light receiving face; the prisms being formed spanning between the light receiving face and the opposing face opposite the light receiving face; and the prisms being formed, between adjacent prisms, deeper than the prisms within a predetermined range in the vicinity of the light receiving face..
A backlight module includes a light guide plate and a supporting assembly. The light guide plate has a light input surface, a light output surface and a back surface.
A backlight module is provided and includes a back plate, a light guide plate, a light source, a frame, at least one first positioning member and at least one second positioning member. The back plate includes at least one first limiting hole.
Backlight unit and display device including the same
A backlight unit includes a light source providing a blue light; a light guide plate of glass at a side of the light source; an optical sheet on the light guide plate; a reflective sheet under the light guide plate; and an optic change part including a yellow fluorescent material, wherein the blue light is changed into a white light by the optical change part.. .
Backlight module and display apparatus thereof
A backlight module includes a light guide plate, alight emitting diode, a limiting block, an elastic member, and a bezel having a containing structure. The light guide plate is disposed in the containing structure and has a side surface and a light entrance surface opposite to the side surface.
A light guide is provided for illuminating innumerable constructions, but which is ideally suited for illuminating the keys of a keyboard. The light guide includes a translucent planar plate having a top, a bottom and sides.
Sensor device with enhanced light guide visualization and related methods
A sensing device comprises a sensor housing defined in part by two or more outer planes, a light guide including one or more legs, where the light guide defined in part by a vertical plane, and the light guide is an indicator for the sensing device. The light guide extends along a first portion and a second portion, where the first portion is disposed along at a first outer plane of the housing, the second portion is disposed along a second outer plane of the housing.
Device for use in a medical treatment room
A device (1; 26) for use in a medical treatment room includes at least one control unit (2, 6; 18) designed as a light guide and at least one light source (3, 3′; 21) which emits light with a wavelength between 380 nanometres and 420 nanometres, particularly 405 nanometres, and is arranged in such a manner that emitted light is coupled into the light guide. The light guide is designed in such a manner that light exiting the light guide again at least partially illuminates the surface of the control unit (2, 6; 18)..
Field instrument with display device
A field instrument (1) with a display device (4) that allows a flexibility of display that is as great as possible for a hardware structure that is as small as possible by the display device (4) having a light guide device (8) and a luminous unit (12, 14) which emits light in a direction toward the light guide device (8).. .
Krohne Messtechnik Gmbh
Light source device and display device
Provided are a light source device and a display device capable of preventing the user from recognizing unevenness in luminance due to reflection, by a reflection sheet, of the unevenness in luminance occurring at a cut-out part of a light guide plate. For cut-out parts formed on a light guide plate and a reflection sheet, respectively, to correspond to a positioning part which is located in a housing accommodating, in a stacked manner, the light guide plate and the reflection sheet for reflecting light entering the light guide plate to one surface side, the reflection sheet being located on another surface side of the light guide plate, and which determines a position of the light guide plate and the reflection sheet in the housing, the cut-out part of the light guide plate is configured to be included in the cut-out part of the reflection sheet in the direction of stack, thereby preventing unevenness in luminance occurring at the cut-out part of the light guide plate from being reflected to the side of one surface of the light guide plate..
Sakai Display Products Corporation
Backlighting assembly combined with lcd assembly and combining the same using a double-sided adhesive member
The high intensity light output of edge lighting point light sources such as leds may generate undesired leakage light that is optically conducted by way of a continuum of the material of a components affixing adhesive member. In accordance with present disclosure, air filled grooves or other such discontinuities are formed in the adhesive member along respective light output pathways of the respective point light sources.
Samsung Display Co., Ltd.
Backlight unit and liquid crystal display device using the same
The backlight unit whose luminance life can be extended without increasing the cost and the power consumption includes: a light source unit to which a light source is mounted; a light guide plate which converts light from the light source to a surface light beam and emits the beam; and supporting members provided between the light source unit and the light guide plate, wherein each of the supporting members is a member having a function of shortening the distance between the light source unit and the light guide plate by the changes generated over time.. .
Nlt Technologies, Ltd.
Lighting device, display device and television device
A backlight device (a lighting device) 12 includes leds (a light source) 17, a light guide plate 16, a chassis 14, led boards 18, and heat dissipation members 19. The light guide plate 16 includes an end surface that is opposite the leds 17 and configured as a light entrance surface 16b through which light from the leds 17 enters.
Sharp Kabushiki Kaisha
Light divider and magnetism measurement apparatus
A light divider includes a light guide having a first surface and a second surface that reflect light incident on the light guide, the light guide causing the light to propagate through a portion between the first surface and the second surface, light dividing films that are provided in the light guide and so characterized that the light dividing films not only reflect but also transmit the light, and a plurality of light extracting portions that are provided on the first surface and allow light fluxes that the light dividing films have transmitted to exit through the first surface.. .
Seiko Epson Corporation
Illumination apparatus, image sensor unit, image reading apparatus, and image forming apparatus
An illumination apparatus includes: a light guide that is formed in a rod shape and includes a positioning portion that is formed at one end in a longitudinal direction, and light incident surfaces that are formed at two end faces in the longitudinal direction; and light sources that are arranged in the vicinity of the light incident surfaces, respectively, and that emit light that is incident on the incident surfaces. The light guide is formed by injection molding.
Canon Components, Inc.
Light-guiding devices and monitoring devices incorporating same
A monitoring device configured to be attached to the ear of a person includes a base, an earbud housing extending outwardly from the base that is configured to be positioned within an ear of a subject, and a cover surrounding the earbud housing. The base includes a speaker, an optical emitter, and an optical detector.
Multidirectional lighting module for implementing multiple colors and electronic device having the same
A multidirectional lighting module for implementing multiple colors and an electronic device having the same are provided. The multidirectional lighting module includes light emitting diodes (leds), a circuit board on which the leds are mounted, and a light guide plate that emits light incident from the leds in at least two directions.
Samsung Electronics Co., Ltd.
Light guide element and light source device using the light guide element
A light guide element and a light source device using the same are provided. The light guide element has a main body.
Radiant Opto-electronics Corporation
A display apparatus is provided. A display unit has a display region.
E Ink Holdings Inc.
A display device includes a display panel, a light guide plate (lgp), a light source, and a positioning component. The lgp is disposed on a display surface of the display panel and has an upper surface and a lower surface opposite to each other, a light-incident surface, a first light-guiding block, and a second light-guiding block.
E Ink Holdings Inc.
Light guide plate
A light guide plate including a plate body and a plurality of microstructures formed thereon is provided. The plate body has a light entrance surface, a light exit surface orthogonal to the light entrance surface, and at least one side surface neighboring the light exit surface and the light entrance surface.
Backlight module and display panel using the same
A backlight module includes a frame, a light source, a light guide plate, a wavelength conversion layer, and an optical film group. The light source is disposed in the frame.
Au Optronics Corporation
Display device and backlight module
A backlight module includes a bottom frame, a light guide plate, a lighting bar and a supporting bar. The light guide plate is disposed on the bottom plate of the bottom frame.
Solid state area light and spotlight with light guide and integrated thermal guide
A solid state area light and spotlight having a solid state light source such as leds, tapered light guides, and external thermal guides. The area light includes a flared light guide, and the spotlight includes a light guide with a closed end.
3m Innovative Properties Company