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Light Guide patents

      

This page is updated frequently with new Light Guide-related patent applications.




new patent Light pipe structure
A light pipe structure includes a light guide pillar and a light shade tube. The light guide pillar, which is composed of a transparent material, is used for transmitting light.
Compal Broadband Networks Inc.


new patent Light guide plate including absorption pattern and display device having the same
A display device includes a display panel which displays an image with light, a light guide plate through which the light is guided and which guides the light to the display panel, and an absorption filter provided in plural. The light guide plate defines a light exit surface thereof through which the light is emitted to the display panel and a rear surface thereof opposite to the light exit surface.
Samsung Display Co., Ltd.


new patent Fluorescense-detected assays on microfluidic chips
An assay unit for carrying-out fluorescence-detected assays on physiological samples comprises a microfluidic chip with a microfluidic system to convey a physiological sample or analyte solution through one or more microfluidic channels arranged on the chip, and a photonic system with two or more rectangular waveguide structures arranged on the chip to guide excitation light in the near ir, visible, or near uv range. The microfluidic channels and the waveguide structures cross each other at a detection site.
One Drop Diagnostics SÀrl


new patent Connector and endoscope system
There are provided a connector of which manufacture and maintenance are easy and an endoscope system. A connector is a connector for an endoscope that is connected to a light source device.
Fujifilm Corporation


Large field of view multi-camera endoscopic apparatus with omni-directional illumination
A multi-camera hemispherical very wide field of view imaging apparatus with omnidirectional illumination capability comprises a cylindrical body (4, 4.a, 4.b), a hemispherical mechanical frame (2) arranged on one end of the cylindrical body (4, 4.a, 4.b), a plurality of imaging channels (3), each imaging channel (3) comprising at least an image sensor and related optics with a fixed focus appropriate for endoscopic imaging, the plurality of imaging channels (3) being distributed over the hemispherical mechanical frame (2), a light source arranged centre-down at a back part of the plurality of imaging channels (3) and inside or at the end of the cylindrical body (4, 4.a, 4.b). Each imaging channel (3) comprises a plurality of lightning channels (1) around their centre, each of the plurality of lightning channels (1) comprising at least one microfiber light guide having a determined angle of curvature arranged to transmit the light from the light source.
Ecole Polytechnique Federale De Lausanne (epfl)


Method for short-range optical communication, optoelectronic data carrier and read/write device
The invention relates to electronic data carriers having non-volatile memory, and to a method for short-range optical communication. The aim consists in creating a simple, compact, jam-resistant data carrier and a data read/write device.

Image sensor pixels with light guides and light shield structures
A front-side illuminated image sensor with an array of image sensor pixels is provided. Each image pixel may include a photodiode, transistor gate structures, shallow trench isolation structures, and other associated pixel circuits formed in a semiconductor substrate.
Semiconductor Components Industries, Llc


Liquid crystal display device
The present invention provides a liquid crystal display device. The device includes a light guide plate, a color filter substrate, an array substrate and a light shading tape.
Wuhan China Star Optoelectronics Technology Co., Ltd.


Displays with multimode backlight units
A display may have a backlight unit that provides backlight illumination. The backlight unit may include a light guide that distributes light through the display.
Apple Inc.


Backlight unit and display device including the same
A backlight unit includes a light guide member including an incident surface extending in a first direction and a light source unit which generates a light, provides the light to the incident surface includes a body member extending in the first direction to define a cavity therein and includes a light exit part defined in one side portion facing the incident surface and connected to the cavity, a first light source disposed in the cavity and including a laser diode generating a first light having a first color, and a second light source disposed in the cavity spaced apart from the first light source in the first direction and including a laser diode generating a second light having a second color where the body member provides a third light having a third color obtained by combining the first and second colors to the incident surface through the light exit part.. .
Samsung Display Co., Ltd.


Light guide plate, manufacturing the same, and display device including the light guide plate

A light guide plate includes a body and a light guide pattern. The body includes a glass doped with a dopant having photosensitivity and first regions spaced apart from each other are defined in the body.
Samsung Display Co., Ltd.

Linear light source with flexible printed circuit

A linear light source assembly including a light guide bar with patterned light emitting surface, a reflective holder, a light emitting diode (led) light source module, and a flexible printed circuit (fpc) is disclosed. The light guide bar is an elongated polygonal transparent material with a light-scattering patterned light emitting surface where the light exits.
Pixon Technologies Corp.

Luminaire module having a light guide with a redirecting end-face

A solid-state luminaire module includes one or more light-emitting elements (lees) arranged to provide light; and a light guide including a receiving end arranged to receive the light provided by the lees and an opposing end, a pair of opposing side surfaces extending along a length of the light guide to guide the received light in a forward direction to the opposing end, and a redirecting end-face located at the opposing end and configured to reflect the guided light—that reaches the opposing end—back into the light guide as return light, such that substantially all the return light impinges on the pair of opposing side surfaces at incident angles larger than a critical incidence angle and transmits through the pair of opposing side surfaces into the ambient as output light of the luminaire module, the output light to propagate in backward directions.. .
Quarkstar Llc

Viewing angle switchable back light unit

The present disclosure relates to a viewing angle switchable back light unit in which the general mode and the privacy mode in a liquid crystal display can be selected. The present disclosure suggests a thin film type back light unit comprising: a light guide film including a light entering part disposed at one side, a light changing part disposed at other side and a light guiding part connecting the light entering part and the light changing part; a light radiating part disposed on an upper surface of the light guide film; and a light source disposed at the light entering part of the light guide film.
Covestro Deutschland Ag

Fluorescence sensor

A light guide unit of a fluorescence sensor is disclosed, which includes at least an optical-waveguide film in which one or more optical waveguides are formed. Each of these films includes a plurality of optical channels that output excitation light (e) or input fluorescence (f).
Terumo Kabushiki Kaisha

Imaging apparatus and projection apparatus

Provided is an imaging apparatus, including: an imaging optical system which forms an optical image of an object; and a plurality of image pickup units which capture the optical image of the object, in which each of the plurality of image pickup units has an image sensor and a light guide body which includes a plurality of optical waveguide members transmitting light from the imaging optical system to the image sensor, an angle of a central axis of each of two adjacent image pickup units with respect to an optical axis of the imaging optical system is mutually different, and an optical image transmission distance of each of the two adjacent image pickup units is mutually different.. .
Canon Kabushiki Kaisha

Electronic devices with soft input-output components

An electronic device may have control circuitry coupled to input-output devices such as a display. A flexible input-output device may be formed from an elastomeric substrate layer.
Apple Inc.

Luminous keyboard

A luminous keyboard includes a keypad module, plural light-emitting elements, a light guide plate and a reflecting plate. The reflecting plate has plural light amount control structures.
Primax Electronics Ltd.

Keyboard backlight module with improved light guide structure

A keyboard backlight module includes a backlight device including a reflective layer, a light shielding layer and a light guide layer sandwiched between the reflective layer and the light shielding layer and carrying a set of key switches on the top surface thereof, a light source mounted between the reflective layer and the light shielding layer, and high-refractive index scatter points prepared from a mixture containing a colored light-transmissive ink and high-refractive index particles at a predetermined ratio and mounted in the top side and/or bottom side of the light guide layer for refracting light toward the key switches to enhance illumination brightness.. .
Chicony Power Technology Co., Ltd.

Method and apparatus to enable smartphones and computer tablet devices to communicate with interactive devices

A method and apparatus to enable smartphones and computer tablet devices to communicate with interactive devices, using a selected area of the emissive display of the smart device coupled to one or more optical guides 1. Additionally the enabled optical communication allows smart devices to indicate their position, identity and orientation 3 relative to a receiving device.

Liquid crystal display device

A liquid crystal display device includes a backlight module, a liquid crystal panel, a color filter and a controller. The backlight module includes a light guide plate having a light-input surface and a light-output surface, a plurality of white leds and a plurality of blue leds.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Display device and finder device

This finder display device is provided with a liquid crystal panel, a backlight, and a light source driving section. The backlight has a light guide having a side near which first to sixth light sources are disposed.
Fujifilm Corporation

Light source device and display apparatus

A light source device according to the present invention includes a light guide plate, a light source opposed to one end face of the light guide plate, a casing with one face being open, which houses the light guide plate and the light source and a frame member fitted onto an edge of the casing, the casing includes a contact part directly or indirectly being in contact with the one end face of the light guide plate at a side of the light source, and the frame member includes an elastic contact part being in contact with the other end face of the light guide plate while being elastic, at a side opposite to the light source.. .
Sakai Display Products Corporation

Backlight module comprising quantum dot strips and liquid crystal display device

A backlight module having quantum dot (qd) strips is provided. The backlight module includes a back bezel, a light guide plate (lgp) disposed on the back bezel, and a light source fixed at one side of the lgp.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Electronic devices with soft input-output components

An electronic device may have control circuitry coupled to input-output devices such as a display. A flexible input-output device may be formed from an elastomeric substrate layer.
Apple Inc.

Light guide plate and planer light source device having the same

A light guide plate includes a light introduction surface to receive light supplied from a light source module and a light emission surface to emit the light outward, the light emission surface having a larger area than the light introduction surface. The light guide plate is of a material that transmits light and absorbs light in an absorption wavelength band.
Lg Electronics Inc.

Composite light guide plate and manufacturing method thereof, backlight module, and display device

The present disclosure provides a composite light guide plate and a manufacturing method thereof, a backlight module and display device. The composite light guide plate includes a light guide plate body and a reflective film.
Beijing Boe Display Technology Co., Ltd.

Surface light source device and display device

A surface light source device (20) includes a light guide plate (30), an optical sheet (60) and a light source (24). The optical sheet has unit prisms projecting toward the light guide plate and arranged in a first direction.
Dai Nippon Printing Co., Ltd.

Narrow-frame liquid crystal display (lcd) module

The present invention relates to a narrow-frame liquid crystal display (lcd) module, which comprises: an lcd panel; a light guide module including at least one group of optical films and a light guide plate disposed at the rear of the optical films; and a frame erected on the light guide plate and configured to support the edges of the optical films, wherein a prism layer is disposed among the optical films; the prism layer and the frame are partially overlapped or not overlapped; and when the prism layer and the frame are partially overlapped, the width of the prism layer extended from the frame is not more than 2 mm so as to shorten a dark band produced by the dioptric imaging of the frame on the edge of the lcd panel.. .
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Backlight module and liquid crystal display

A backlight module includes a light guide plate, a light source and a plastic frame. The light guide plate includes a light emitting surface, a bottom surface, a light incident surface and a first side surface.
Chunghwa Picture Tubes, Ltd.

Optical unit and endoscope system

An optical unit includes an optical element serving as a light guide path, which includes an incident entrance, an emitter, a light coupler which is arranged in the case where a plurality of incident entrances are arranged, and which couples a primary light, and a light separator which is arranged in the case where a plurality of emitters are arranged, and which separates the primary light to each of the emitters. The optical unit further includes a detector which directly or indirectly detects a leakage light leaking outside of the light guide path from the light guide path..
Olympus Corporation

Bolt sensor

There is provided a bolt sensor which detects a fastened state of a bolt. The bolt sensor includes a sensor body including a through hole into which a shaft of the bolt is to be inserted, a light guide extending along an outer periphery of the sensor body, and a light source configured to emit light to the light guide based on output of the sensor body..
Minebea Co., Ltd.

Display device and television receiving device

A liquid crystal display device includes: a chassis having a bottom plate; a liquid crystal panel; source-side flexible substrates bent such that one end side thereof is connected to the liquid crystal panel and another end side thereof reaches a rear surface side of the bottom plate; a source substrate connected to the other end side of the source-side flexible substrates and disposed on the rear surface side of the bottom plate; a light guide plate, an end face thereof that faces toward the source-side flexible substrates being a first light-receiving face, and another end face thereof being a second light-receiving face; first leds that are of a top-emitting type and that are disposed so as to face the first light-receiving face; second leds that are of a side-emitting type and are disposed so as to face the second light-receiving face; a metal first led substrate, the first leds being disposed on a surface thereof; and a second led substrate, the second leds being disposed on a surface thereof.. .
Sharp Kabushiki Kaisha

Decoration device and game machine

A decoration device has a display panel having a cylindrical surface shape with curvature in a first direction on which a first pattern is provided, a light source to emit visible light, and a light guide plate with a diffusing surface opposes the display panel, the diffusing surface having a concave cylindrical surface shape, an exit surface opposing the diffusing surface having a convex cylindrical surface shape. The light guide plate is provided such that the first pattern is visible from the exit surface side.
Omron Corporation

Backlight system for liquid crystal display devices

A liquid crystal display (lcd) panel and a backlight system for the lcd panel are provided. A light guide plate and an illumination source facing a side of the light guide plate are provided, wherein the illumination source comprises a set of light emitting diodes (leds).
Panasonic Liquid Crystal Display Co., Ltd.

Light guide apparatus and fabrication method thereof

A light guide apparatus that can redirect light impinging on the apparatus over a wide range of incident angles and can concentrate light without using a tracking system and methods for fabrication. This apparatus uses conditions of total internal reflection and refraction near the critical angle for total internal reflection (near tir) in order to trap light within the apparatus..
Agira, Inc.

Combined rear cover and enhanced diffused reflector for display stack

Disclosed herein is a combined enhanced diffused reflector and back cover for a display stack. The back cover may be assembled proximate to a light guide panel layer of a display stack to receive light from a light guide panel and to reflect and diffuse light received from the light guide panel back to the light guide panel..

Illumination device

An illumination device includes a light source unit and a light guide plate configured to guide light coming from the light source unit. The light guide plate includes an incidence surface, main emission surfaces from which the light incident on the incidence surface is emitted, and an end emission surface which is opposed to the incidence surface and from which the light is emitted.
Panasonic Intellectual Property Management Co., Ltd.

Illumination device

An illumination device includes a light source unit; and a light guide plate configured to guide light from the light source unit and to emit the light outward. The light guide plate includes an incidence surface which constitutes one end surface of the light guide plate and on which the light from the light source unit is incident, and emission surfaces which constitute opposite main surfaces of the light guide plate and from which the light incident on the incidence surface is emitted.
Panasonic Intellectual Property Management Co., Ltd.

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.
Omron Corporation

Presentation device and game machine

A presentation device has a cylindrical display panel provided with a first pattern on an outer circumferential surface thereof and supported to be rotatable in a circumferential direction, a cylindrical light guide plate arranged along an outer circumference of the display panel and supported coaxially with the display panel such that the first pattern is visible from an outer circumferential side, and a light source opposing a portion of one edge surface of the light guide plate and configured to emit visible light. The light guide plate has prisms that are formed in a diffusing surface on an inner circumferential side opposing the outer circumference surface of the display panel, reflect visible light from the light source that enters the light guide plate from the portion of the edge surface toward an exit surface on the outer circumferential side opposing the diffusing surface and arranged along a second pattern..
Omron Corporation

Light source assembly, backlight and display device

A light source assembly, a backlight and a display device are provided. The light source assembly comprises a bar-shaped light source unit, which comprises an organic light-emitting diode for emitting light and has a light outgoing side; and a light concentration bar, which has a light incidence surface and a light outgoing surface opposite to each other, the light incidence surface being disposed at an outer side of the light outgoing side of the light source unit and matching with the light outgoing side in size, and the light outgoing surface matching with a light incidence side of a light guide plate in size..
Hefei Boe Display Light Co., Ltd.

A light emitting device

A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting first light (13) with a first spectral distribution, a light guide (4) made of a luminescent material and comprising a light input surface (41) and a light exit surface (42) extending in an angle different from zero to one another, the light guide further comprising a first further surface (46) extending parallel to and arranged opposite to the light exit surface, wherein the light guide is adapted for receiving the first light (13) with the first spectral distribution at the light input surface, converting at least a part of the first light with the first spectral distribution to second light (14) with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling the second light with the second spectral distribution out of the light exit surface. The light emitting device further comprises a phosphor element (77) arranged adjacent to the first further surface and a reflective element (76) arranged adjacent the phosphor element opposite to the first further surface (46).
Philips Lighting Holding B.v.

Light guide plate, backlight module, and display device

The present invention provides a light guide plate, a backlight module, and a display device. The light guide plate contains a platform of uniform thickness along an edge of the light guide plate for installing a flexible printed circuit (fpc).
Shenzhen China Star Optoelectronics Technology Co., Ltd.



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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