Abstract: The present invention provides a display device including a first display panel and a lens layer. The first display panel is provided with a first display area and a first frame located at a side of the first display area. The first display area includes a plurality of first pixels, and some of the first pixels form a first image adjustment area adjacent to the first frame. When the first image adjustment area receives a same first image source signal provided to the first display panel, brightness generated by the first pixels in the first image adjustment area is greater than that of the other first pixels in the first display area. The lens layer covers the first image adjustment area and the first frame and includes a plurality of lenses arranged side by side and respectively extending in an extending direction of the first frame.

Abstract: Disclosed herein are structures, devices, and systems for detecting touch and force inputs at multiple sensing locations on a surface of an electronic device using waveguide-based interferometry. A laser light source, such as a VCSEL, inserts light into a waveguide positioned adjacent to the sensing locations, and an input at a sensing location alters the inserted light in the waveguide allowing for determination of the input's touch or force at the sensing location. Wavelength modulation of the inserted light allows isolation in frequency of the signals from each sensing location. Optical phase locking can be used to lock an absolute distance beat frequency corresponding to a stationary reference point in the waveguide.

Abstract: A light guide plate formed from a panel transparent to visible light has a first incidence surface provided to form a sidewall of the light guide plate that faces a light source configured to emit visible light, and a plurality of prisms provided in a predetermined region on one surface of the light guide plate. The prisms include a reflection surface that reflects the visible light emitted from the light source and entering the light guide plate from the first incidence surface toward another surface of the light guide plate. The predetermined region is divided into a plurality of local regions corresponding to a plurality of tones in the predetermined region when seen from a predetermined viewpoint, and in each local region, the orientation of the reflection surface of the prisms distributed in the local region is established in accordance with the tone corresponding to that local region.

Abstract: Disclosed are a light guide plate and a backlight module including the light guide plate. The light guide plate includes multiple light guide plate segments, each of which is linear, and the multiple light guide plate segments are connected with each other successively to form an entire light guide plate. The entire light guide plate extends in a curved shape along a length direction thereof, and the entire light guide plate includes a light exiting surface and a light entering surface which is arranged at a side of the light exiting surface. The backlight module includes a light source, a plurality of quantum dot glass tubes which are connected with each other successively, and a light guide plate. The light source and the light entering surface of the light guide plate are arranged corresponding to each other, and each of the quantum dot glass tubes is arranged between the light source and a light guide plate segment correspondingly.

Abstract: A vehicle display device is configured for installation to a vehicle and includes a mirror element configured to reflect external light entering from a front surface toward the front surface, and a light emitting device. The light emitting device includes a light source configured to emit light, and a light guide element configured to guide incident light from the light source. The light guide element includes an emission surface configured to output incident light, and an optical-path changing portion configured to change the optical path of incident light toward the emission surface. The mirror element and the light guide element are stacked at an outer surface of the mirror element to allow the optical-path changing portion to change the optical path.

Abstract: A backlight module, a display module and a display device are disclosed. The display module includes a backlight module; a display panel located at a light exit side of the backlight module; and a first optical adhesive layer located between the backlight module and the display panel. The display panel and the backlight module are adhered to each other through the first optical adhesive layer.

Abstract: A lighting fixture appears as a skylight and is referred to as a skylight fixture. The skylight fixture has a sky-resembling assembly and a plurality of sun-resembling assemblies. The sky-resembling assembly has a sky-resembling optical assembly and a sky-specific light source, wherein light from the sky-specific light source exits a planar interior surface of the sky-resembling light optical assembly as skylight light. The plurality of sun-resembling assemblies are arranged adjacent one another and extend downward from a periphery of the sky-resembling assembly. Each of the plurality of sun-resembling assemblies has a sun-resembling optical assembly and a sun-specific light source, wherein light from the sun-specific light source exits a planar interior surface of the sun-resembling optical assembly as sunlight light.

Abstract: A method of anti-fouling of a surface while said surface is at least partially submersed in an liquid environment, comprising: providing an anti-fouling light; distributing at least part of the light through an optical medium comprising a silicone material and/or UV grade fused silica; emitting the anti-fouling light from the optical medium and from the surface.

Abstract: A display device includes a backlight and a display panel on the backlight. The backlight includes a light source to provide a first light, and an optical wavelength converter to receive the first light and emits a second light. The optical wavelength converter includes a light emitting part having a plurality of excitation light emitting bodies to be excited by receiving the first light, and thereby emit the second light, and a light absorbing part including a plurality of absorbers provided on the light emitting part to receive the second light and absorb a portion of the second light having a wavelength of about 550 nm to about 650 nm.

Abstract: A display device and a display method are provided. The display device includes: a first substrate; a light guide plate opposite to the first substrate; a grating layer including gratings, on the light guide plate and at a side of the light guide plate facing towards the first substrate, wherein each grating corresponds to one pixel; and a light source at a lateral surface of the light guide plate parallel to a light emergent direction of the display device, wherein the light source includes monochromatic light emitting components and an optical component, lights of different colors emitted by the monochromatic light emitting components are incident into, via the optical component, the light guide plate at different incident angles and are emergent from the gratings, and the incident angles are greater than a total reflection angle of the light guide plate.

Abstract: A display device is disclosed. The display device according to the present disclosure includes a frame; a light assembly disposed in at least one edge area of the frame; a panel positioned in front of the frame; and a light guide plate positioned between the frame and the panel so that light emitted from the light assembly is transferred to the panel, wherein the light assembly includes a light source and a filter positioned at a light path between the light source and the light guide plate and changing characteristics of light emitted from the light source. The present disclosure can improve display quality of the display device by changing characteristics of light emitted from the light source.

Abstract: An illumination device includes a plurality of light-emitting elements (LEEs); a light guide extending in a forward direction from a first end to a second end to receive at the first end light emitted by the LEEs and to guide the received light to the second end; an optical extractor optically coupled to the second end to receive the guided light, the optical extractor including a redirecting surface to reflect a first portion of the guided light, the reflected light being output by the optical extractor in a backward angular range, and the redirecting surface having one or more transmissive portions to transmit a second portion of the guided light in the forward direction; and one or more optical elements optically coupled to the transmissive portions, the optical elements to modify the light transmitted through the transmissive portions and to output the modified light in a forward angular range.

Abstract: A display which is able to dissipate heat from points of concentrated heat generation in a backlight module is provided, which includes the backlight module and a cooling module. The cooling module includes a cooling member and a buffer member. The cooling member is a flat sheet, and the cooling member is made of heat-dissipation material. The cooling member is positioned on a surface of the backlight module. The buffer member is made of soft material with adhesiveness and with elasticity. The buffer member is directly adhered on the cooling member through the adhesiveness of the buffer member to fix the cooling member to the backlight module.

Abstract: A deformed liquid crystal display device including a cover bottom; a backlight unit on the cover bottom; the backlight unit including: a LED assembly including a plurality of LEDs; a reflector comprising a bottom surface, and side portions bent upward from edges of the bottom surface; a diffuser, disposed above and spaced apart from the plurality of LEDs and the bottom surface of the reflector; a liquid crystal panel disposed on the backlight unit, wherein the reflector has at least one corner having an acute angle formed by two adjacent side portions, wherein a brightness enhancing portion is disposed at the corner having the acute angle.

Abstract: A backlight module includes an optical assembly, a plurality of first light units, and a light guide plate. The optical assembly includes a base film, a first conductive layer, and a first reflective layer. The first conductive layer is disposed on the base film, and the first reflective layer is disposed on the first conductive layer. The first reflective layer includes a first part and a second part. The first part is connected to the second part. The plurality of first light units are disposed on the first part and extend through the first part to be electrically connected to the first conductive layer. The light guide plate is disposed on the second part.

Abstract: A display device has a plurality of sub-pixels, and includes a circuit substrate, a plurality of micro light-emitting semiconductor elements, a light conversion layer and an opposite substrate. The micro light-emitting semiconductor elements are disposed separately on the circuit substrate and configured corresponding to the sub-pixels. The light conversion layer has a plurality of light conversion portions disposed respectively corresponding to at least partial of the micro light-emitting semiconductor elements. The light emitted from the micro light-emitting semiconductor element corresponding to the sub-pixel passes through the light conversion portion to generate white light. The opposite substrate is disposed at one side of the light conversion layer away from the circuit substrate. In another display device, the light emitted from the micro light-emitting semiconductor element passes through the light conversion layer to generate white light.

Abstract: An illumination system is disclosed that is arranged to compensate for variations in brightness between different LEDs in the system. The system may include an array of LEDs coupled to a light guide that is provided with a plurality of light extraction patterns. Each light extraction pattern may include a plurality of light extraction features. The light extraction patterns may differ from one another in the density of the features. Light extraction patterns having a greater density may be combined with LEDs in the array that are less bright, whereas light extraction patterns having a lower feature density may be combined with LEDs in the array that are brighter.

Abstract: The invention provides a lighting device (100) configured to provide lighting device light (101). The lighting device (100) comprises a plurality of light sources (200) configured to provide light source light (201), the plurality of light sources (200) comprising at least a first light source (210) configured to generate first light source light (211) and a second light source (220) configured to generate second light source light (221).

Abstract: An edgelit recessed luminaire includes a housing that defines an inner cavity and has a pair of side panels. Each side panel includes one or more torsion spring receivers. Further, the edgelit recessed luminaire includes a light engine that includes torsion springs that are pivotally coupled to the light engine via torsion spring brackets. The light engine is removably coupled to the housing such that in an open position, the light engine is suspended from the housing via the torsion springs providing access to the inner cavity and in a closed position, the light engine covers the inner cavity of the housing. Alternatively, a linear light module is removably coupled to the housing.

Abstract: A backlight module, a control method and control device thereof, and a corresponding display device are disclosed. With this backlight module, switching between a narrow view angle and a wide view angle is achieved without the additional need for carrying any auxiliary tools. A light exit region of the backlight module includes a first light exit region and a second light exit region located on a periphery of the first light exit region. The backlight module includes a first light source component and a second light source component. Light emitted from the first light source component is emitted out through the first light exit region, and light emitted from the second light source component is at least partially emitted out through the second light exit region. Switch control ends for the first light source component and the second light source component are not electrically connected.

Abstract: A light-emitting apparatus is disclosed. The light-emitting apparatus includes at least one light guide member, at least one light source unit disposed at at least one of two opposite end portions of the light guide member, a first reflection unit disposed on a first inner surface portion of the light guide member, and a plurality of light output units disposed on a second inner surface portion of the light guide member, located opposite the first inner surface portion, while being spaced apart from each other.

Abstract: A light path adjustment mechanism includes a carrier, an optical plate member, a support, a first axis, a second axis, a first actuator and a second actuator. The carrier includes an inner frame and an outer frame, the optical plate member is disposed on the inner frame and has a reflective surface and an opposite surface opposite the reflective surface. The first axis is disposed between the inner frame and the outer frame, and the second axis is disposed between the outer frame and the support. The first actuator and the second actuator are disposed on one side of the carrier facing away from the reflective mirror, and the opposite surface of the reflective mirror and the first axis are spaced at a distance.

Abstract: A light guide plate includes a first light emitting surface and a second light emitting surface. The first light emitting surface and the second light emitting surface are connected by an inclined surface. The first light emitting surface is connected to the light incident surface of the light guide plate and is higher than the second light emitting surface, and the inclined surface is provided with a protruding structure. According to the technical solutions in the embodiments of the present disclosure, part of the light projected onto the inclined surface is reflected back to the light guide plate by the protruding structure and reflected back and forth between the bottom surface of the light guide plate and the inclined surface to be sufficiently mixed and homogenized. A part of the homogenized light emits from the second light emitting surface to compensate for a longitudinal brightness difference.

Abstract: An electronic device may be provided with a display. An opaque layer may be formed on an inner surface of a display cover layer in an inactive area of the display. An optical component window may be formed from the opening and may be aligned with an ambient light sensor such as a color ambient light sensor. The color ambient light sensor may have photodetectors on a light detector integrated circuit. Electrostatic shielding may be incorporated into the color ambient light sensor to prevent perturbations in the output of the color ambient light sensor due to the presence of electrostatic charge in the vicinity of the optical component window. The shielding may include a grounded shield layer on a surface of an ambient light sensor support structure that faces the display cover layer and may include a transparent shield layer overlapping the photodetectors.

Abstract: In one embodiment, an overhead street light (a luminaire) is formed that has an asymmetric light intensity distribution, where the peak intensity is greatest along the direction of the street, lower directly across the street, and much lower on the house side of the street. Around the edge of a circular transparent light guide are white light LEDs that inject light into the light guide. To help control the asymmetry of the light intensity distribution, sawtooth-shaped grooves are formed in the light guide surface opposite to the light-emission surface and parallel to the street. Gaussian diffusers are used to partially diffuse the light. By proper selection of the grooves, the Gaussian diffuser, and the relative amounts of light emitted by LED segments around the light guide, the desired asymmetrical light intensity distribution is achieved while a direct view of the light exit surface appears as a uniform light.

Abstract: A lighting device, such as a LED module, comprising an elongated support structure having a longitudinal direction and electrically-powered light radiation sources distributed along the support structure, the support structure including at least one light-permeable layer, one or more optical signal sources coupled with the light-permeable layer, for injecting therein an optical signal propagating in the longitudinal direction, and one or more optical signal detectors coupled with the light-permeable layer, for detecting the optical signal injected by the optical signal source(s).

Abstract: A lead frame includes an electrode, a hanger lead, and an outer frame and is formed integrally with a supporting member supporting the electrode, so that a package having a depression in which a light-emitting element will be mounted is formed. The depression is open on the upper side, its side walls are mainly constituted of the supporting member, and at least a part of its bottom surface includes the electrode. The electrode is disposed in a supporting member forming region. The hanger lead extends from the outer frame to reach the supporting member forming region. A chamfered surface is formed on at least a part of an upper side corner of an end of the hanger lead.

Abstract: A light guide composition includes a substrate and a first microstructure layer. The substrate has a first main surface. The first microstructure layer is disposed on the first main surface. A refractive index of the substrate with respect to a first light wavelength is greater than a refractive index of the first microstructure layer with respect to the first light wavelength, a refractive index of the substrate with respect to a second light wavelength is smaller than a refractive index of the first microstructure layer with respect to the second light wavelength, and the first light wavelength is smaller than the second light wavelength.

Abstract: According to one embodiment, an illumination device includes a light source, clad, and a plurality of cores. The clad includes a first edge at a light source side, a second edge opposite to the first edge, and a plurality of grooves formed by a plurality of partitions extending in parallel to each other from the first edge to the second edge. The cores are accommodated in the grooves, and each core includes an incident surface on which light from the light source is incident and an exit surface exposed from the groove to emit the light incident on the incident surface.

Abstract: An edge-lit luminaire designed to be of minimal weight and to distribute illumination evenly upon an environment is provided. In some embodiments, the luminaire comprises a frame, a plurality of panels, a light source, and power circuitry. More specifically, the panels are arranged at desired angles so as to maximize the evenness with which light is emitted from the light source, which is secured to interior sides of one or more edges of the frame. In use, the frame is lightweight and configured to mount within or suspend from a ceiling.

Abstract: An environmentally-sealed refractive lighting optic includes a single light-emitting diode (LED) printed circuit card that includes a plurality of LED components and a single, refractive optic element retained directly to the LED printed circuit card in a self-sealing manner without mechanical fasteners. The refractive optic element is configured to environmentally seal the LED components on the LED printed circuit card. Further, the refractive optic element may include a liquid silicone rubber material or an optically-clear low-pressure molded room temperature vulcanizing (RTV) silicone material.

Abstract: Methods for improving color uniformity across an LCD backlight unit having a viewable area, a downconversion film element and blue LEDS comprise increasing blue light absorption while reflecting red and green light in at least one edge of the viewable area.

Abstract: The present application discloses a liquid crystal display apparatus, a backlight module based on quantum dots and a method of manufacturing the same. Wherein the backlight module use the edge type structure and dispose the backlight source emitting monochromatic light in a side of the light guide plate, and formed a plurality of recessed portions on the lower surface of the light guide plate, the surface region of the recessed portions is coated the transparent dielectric layer doped with the dichroic quantum dots, a and metal reflecting layer successively.

Abstract: Disclosed herein is a liquid crystal display device having a thin thickness and a reduced size of a bezel. According to an exemplary embodiment, the liquid crystal display device includes: a liquid crystal display panel including a display area and a non-display area enclosing the display area; a light guide plate disposed under the liquid crystal display panel and having a polygonal plane shape including a first side, a second side, a third side, and a fourth side; and a light source adjacent to the first side of the light guide plate, wherein at least one of the second side, the third side, and the fourth side of the light guide plate overlaps the display area.

Abstract: The present disclosure provides a light guide plate, a manufacturing method thereof, a backlight source and a display device. The light guide plate includes: a first surface, a second surface, and at least one blazed gating structure that is on the second surface of the light guide plate, wherein light incident from the first surface of the light guide plate forms a total reflection in the light guide plate after the light irradiates the at least one blazed gating structure and is diffracted by the at least one blazed grating structure.

Abstract: A backlight module and a display device are provided. The backlight module comprises: a light guide plate having a light incident surface; and a light source disposed on at least one side of the light guide plate. A light exit surface of the light source faces the light incident surface of the light guide plate. At least one through hole is disposed in the light guide plate, and a light adjustment component is disposed in the at least one through hole.

Abstract: A display device is provided. The display device comprises a display surface with several segments that can be backlit, which are configured in such a way that, if subsets of the segments are backlit together, a different one of several symbols is in each case depicted by the display surface, a number of light sources corresponding to the number of symbols, a layer structure of several flat light transmitting layers made of a transparent or translucent material, preferably plastic, wherein the light transmitting layers are stacked with the main surfaces facing each other and are in each case configured in such a way that, primarily, light of exactly one of the light sources is transmitted from a narrow side of the light transmitting layer provided for light entrance to another narrow side of the light transmitting layer as a light exit to at least one segment of the associated symbol.

Abstract: The invention relates to the field of seismology and volcanology, especially the monitoring of the sites in question, called “unstable sites”, and more specifically the monitoring of a fault on such a site. In this respect, the invention especially relates to a reflective assembly to be arranged on a monitored site, the site being monitored from an observation point from which an electromagnetic wave is directed towards the reflective assembly. The invention also relates to a method for monitoring a site by means of such a reflective assembly.

Abstract: A backlight unit 12 includes LEDs 17, a light guide plate 19 including a light entry end surface 19b, a light output plate surface 19a, and an opposite plate surface 19c, a wavelength conversion sheet 20, and a reflection sheet 25. The light guide plate 18 includes a parallel plate surface 27 on a central portion of the opposite plate surface 19c and parallel with the light output plate surface 19a, and an inclined plate surface 28 on a part of the outer peripheral side portion and being inclined with respect to the light output plate surface 19a to be closer to the light output plate surface 19a as is closer to the outer peripheral end surface. The wavelength conversion sheet 20 overlaps the light output plate surface 19a and contains a phosphor that wavelength-converts the light from the LEDs 17.

Abstract: A backlight module and a display apparatus are provided. The backlight module includes: a light bar, a quantum dot encapsulated tube and a light guide plate; the light bar and light guide plate are disposed at two sides of quantum dot encapsulated tube respectively, the light bar and quantum dot encapsulated tube are disposed in parallel, the light bar and quantum dot encapsulated tube are located at a light incident surface side of light guide plate, a plurality of LED lights are disposed on the light bar at a side facing towards the quantum dot encapsulated tube, an LED light corresponding to valid area of quantum dot encapsulated tube is monochromatic LED light, an LED light corresponding to invalid area of quantum dot encapsulated tube is white LED light, and invalid area of quantum dot encapsulated tube is within irradiation range of the white LED light.

Abstract: A protective cover adaptive to an electronic device is provided. The protective cover comprises a connecting portion, a cover body and a light guide plate. A side of the cover body is connected to the connecting portion and is movable relative to the connecting portion. The light guide plate includes a light input surface, an attachment surface, and a light output surface. The light input surface and the attachment surface are opposite to each other. The light guide plate is connected to the cover body via the attachment surface and light from a light source is transmitted through the light input surface and output from the light output surface.

Abstract: The invention relates to a light comprising: a primary lightpipe (2); and, a light source (1). The primary lightpipe may have: a lightpipe inlet side (3) constructed and arranged to receive light from the light source and to allow it to enter the primary lightpipe; a back side (6b) being provided with a serrated structure (5) comprising a reflecting surface (10) to reflect light from the light source; and, a front side (6a) constructed and arranged to internally reflect the light received from the light source to the back side of the primary lightpipe and to transmit light received from the reflecting surface.

Abstract: An optical system for influencing a light has a first optical element (1), by means of which a plane (E) is defined, wherein the first optical element (1) has a lateral edge region (11) designed for the entry of the light, and a second optical element (2), wherein the second optical element (2) is arranged parallel to the first optical element (1) and has a light outlet region (21) for the exiting of the light. The lateral edge region (11) of the first optical element (1) is designed to reduce the glare of or bundle the light in the plane (E), and the second optical element (2) has a elongate lens element (3), which extends along a longitudinal axis (L) and is designed to reduce the glare of or bundle the light in an additional plan (E?), which is oriented at least substantially perpendicularly to the plane (E) mentioned first.

Abstract: Systems and methods for increasing dynamic contrast in a liquid crystal display (LCD) may include a segmented backlight that may include one or more segments and one or more sets of light emitting diodes (LEDs). Each set of LEDs may be configured to illuminate a corresponding segment and each segment may include a notch(es) configured as a light barrier to reduce light leakage to non-adjacent segments. The notch(es) may be of variable length, depth, and width and may be three-dimensional, having a width the varies along the depth and length of the notch and a depth that varies along the width and length of the notch. In some embodiments, the notch(es) may be reflective, some degree of opaque, and/or blackened.

Abstract: Systems and methods for a keyboard backlight module are described. In some embodiments, a keyboard backlight module may include: a Light Guide Plate (LGP), a reflector coupled to the LGP, and a light bar at least partially sandwiched between the LGP and the reflector.

Abstract: A backlight structure includes a frame body, a light guide plate, a first optical film, a second optical film, and a fixed member. The frame body has a first frame edge and a second frame edge opposite thereto. The light guide plate is disposed in the frame body and has a first and second short border corresponding respectively to the first frame edge and the second frame edge. The light guide plate has a protrusion protruding from an upper surface of the light guide plate and being adjacent to the second short border. The optical films are disposed over the light guide plate and include a first and second short-edge portion disposed respectively over the first short border and the second short border. The second short-edge portion has a notch matching the protrusion. The fixed member fixes the frame body and the optical films.

Abstract: A reflection structure, a backlight module and a display device, the backlight module comprises a light source and a back plate and the light source is disposed on a side edge of the back plate, the reflection structure comprises: a first reflection plate disposed on the back plate, an end close to the light source of which can extend freely; and at least one second reflection plate disposed on an edge of the first reflection plate, wherein a first end of the second reflection plate overlaps the first reflection plate, a second end of the second reflection plate extends toward the side edge of the back plate, and at least one of the first end and the second end of the second reflection plate can extend freely.

Abstract: The present disclosure discloses an LED package structure and a chip-scale light emitting unit. The chip-scale light emitting unit includes an LED chip, a phosphor sheet, and at least one light guiding group. The phosphor sheet covers entirely a top surface of the LED chip. The phosphor sheet has a light emitting surface arranged away from the LED chip, and the light emitting surface has a central region and a ring-shaped region surrounding the central region. The light guiding group is disposed on the ring-shaped region and covers at least 60% of an area of the ring-shaped region of the phosphor sheet, and the central region is not covered by the light guiding group. The light guiding group includes a plurality of light guiding micro-structures.

Abstract: A light guide plate including a light guide main body and an index matching layer is provided. The light guide main body has a light-emitting surface and a bottom surface opposite to the light-emitting surface. The index matching layer is disposed adjacent to the bottom surface, wherein a refractive index of the light guide main body is n1, and a refractive index of the index matching layer is n2. 1.07*n2?n1?1.7*n2, and 0.1?(n1?n2)?0.7. A thickness of the index matching layer is larger than 500 nm. A backlight module and a display apparatus are also provided.

Abstract: An illumination device includes a plurality of light-emitting elements (LEEs); a light guide extending in a forward direction from a first end to a second end to receive at the first end light emitted by the LEEs and to guide the received light to the second end; an optical extractor optically coupled to the second end to receive the guided light, the optical extractor including a redirecting surface to reflect a first portion of the guided light, the reflected light being output by the optical extractor in a backward angular range, and the redirecting surface having one or more transmissive portions to transmit a second portion of the guided light in the forward direction; and one or more optical elements optically coupled to the transmissive portions, the optical elements to modify the light transmitted through the transmissive portions and to output the modified light in a forward angular range.