Abstract: An illumination apparatus comprises a first substrate, an optical structure, an array of light emitting elements disposed on the first substrate and between the first substrate and the optical structure, and a mask comprising a plurality of apertures therein. The optical structure is configured to receive light emitted by the array of light emitting elements, direct the received light into a direction away from the first substrate, direct at least some of the light which has been directed away from the first substrate back towards the first substrate, and direct at least some of the light which has been directed back towards the first substrate through the plurality of apertures of the mask.

Abstract: A planar illumination device of an embodiment includes a light guide plate, a plurality of light sources, an elastic member, and a bottom frame. The light guide plate receives light from a light incident side surface. The plurality of light sources emit light to the light incident side surface of the light guide plate. The elastic member presses and supports the light guide plate. The bottom frame houses the light guide plate, the plurality of light sources, and the elastic member. The bottom frame includes a pillar configured to protrude in a thickness direction at a position opposing substantially a center of the light incident side surface of the light guide plate in a longitudinal direction. The light guide plate includes, substantially at the center of the light incident side surface in the longitudinal direction, a groove configured to engage with the pillar. The elastic member presses a side of the light guide plate at a non-light incident side toward a light incident side.

Abstract: A backlight unit includes: a back plate including a bottom wall and a side wall around a periphery of the bottom wall; a lamp strip including a substrate and lamp beads on the substrate; a light guide plate on a side of the bottom wall provided with the side wall, the lamp strip being on a first side wall of the side wall, and light emitting surfaces of the lamp beads being opposite to a side surface of the light guide plate; and a position limiting and fixing structure between the light guide plate and each of the back plate and the lamp strip, for limiting and fixing a position of the lamp strip relative to the light guide plate to keep a gap between the light emitting surfaces of the lamp beads and a light incident surface of the light guide plate unchanged during turn-over of the backlight unit.

Abstract: A display device includes a display panel configured to display an image, a first backlight unit that is disposed under the display panel and outputs first light, and a second backlight unit that is positioned between the display panel and the first backlight unit and outputs second light, wherein the first backlight unit includes a first light guide plate having first patterns protruding or recessed from a rear surface of the first light guide plate, the second backlight unit includes a second light guide plate having second patterns protruding from a rear surface of the second light guide plate, and the second patterns have an asymmetric pyramid shape.

Abstract: A display device includes a light guide plate that guides light incident from a first light source to cause part of the light to exit from a light exit surface. The light guide plate includes a first outgoing structure region including a plurality of outgoing structures, and the plurality of first outgoing structures have maximum incident directions that make intensity of light exiting in a predetermined direction largest scattered over a first angle range.

Abstract: A protective housing wherein two parts (102, 104) of the housing may be closed together to encapsulate connectors and associated components that are external to the glazing laminate. The protective housing is sealed to the glazing and between the two parts to provide a fluid-tight housing. The parts of the protective housing are connected to the glazing and to each other by adhesive layers (116, 118, 120). A vehicle glazing (10) wherein a light guide stack (22) is located between a portion of the inner transparency (26) and the outer transparency (28). The light guide stack includes a polycarbonate film (32) that is bonded to the transparencies by layers of PET (38, 40) that are secured to the polycarbonate film on one side by silicone (34, 36) and that are secured to the transparencies on the other side by PVB (42, 44).

Abstract: A backlight device includes at least a plurality of LEDs arranged in a row, a light guide plate including at least a light entering end face having a plate shape, and a light refracting portion configured with a plurality of unit light refracting portions arranged side by side on the light entering end face along an alignment direction of the plurality of LEDs, wherein in the light refracting portion, an occupancy rate occupied by the unit light refracting portion in an end side portion of the light entering end face in the alignment direction is made lower than an occupancy rate occupied by the unit light refracting portion in a central side portion of the light entering end face in the alignment direction.

Abstract: A lighting and/or signalling device for motor vehicles, comprising: a container body, a lenticular body that forms a housing chamber; at least one light source, arranged inside the housing chamber; a first gasket made of elastomeric material, which extends along at least one part of a perimeter edge of the container body and which defines a barrier to the ingress of water and/or foreign bodies between the container body and the bodywork. The housing body includes one or more spacer elements, each of which consists of an appendix which protrudes from the housing body in a predetermined position and abuts against the bodywork in the housing seat. Each spacer element is provided with a cap made of elastomeric material applied to cover at least one free end portion of the spacer element.

Abstract: A vehicle includes a display device and the display device includes: a backlight unit provided at a rear side thereof; a display panel provided at a front side of the backlight unit; and an outer cover provided at a front side of the display panel, in which the backlight unit is provided to press the outer cover and be spaced apart from the display panel.

Abstract: An illuminator for a display panel includes a light source for providing a light beam and a lightguide coupled to the light source for receiving and propagating the light beam along the substrate. The lightguide includes an array of out-coupling gratings that runs parallel to the array of pixels for out-coupling portions of the light beam from the lightguide such that the out-coupled light beam portions propagate through the substrate and produce an array of optical power density peaks at the array of pixels due to Talbot effect. A period of the array of peaks is an integer multiple of a pitch of the array of pixels.

Abstract: A waveguide illuminator includes an input waveguide, a waveguide splitter coupled to the input waveguide, and a waveguide array coupled to the waveguide splitter. The waveguide array includes an array of out-couplers out-coupling portions of the split light beam to form an array of out-coupled beam portions for illuminating a display panel. Locations of the array of out-couplers are coordinated with locations of individual pixels of the display panel, causing each light beam portion to propagate through a corresponding pixel of the display panel, thereby improving efficiency of light utilization by the display panel.

Abstract: A backlight assembly and a display device are provided in the present disclosure. The backlight assembly includes an optical lamination layer and a die-casting back plate. The die-casting back plate defines an accommodation space for accommodating the optical lamination layer, the die-casting back plate includes an inner surface and an outer surface arranged opposite to each other, the inner surface is a surface facing a bottom surface of the optical lamination layer, a recess region is arranged on the inner surface, and a plurality of rivets configured to assemble the die-casting back plate onto an object to be assembled is arranged on the outer surface. The plurality of rivets is located in a region corresponding to the recess region and spaced apart from a boundary of the recess region by a spacing.

Abstract: A backlight unit and a display device in which the amount of light emitted to the top surface of the backlight unit is increased, are provided. The backlight unit includes light sources disposed on a printed circuit substrate, a reflective layer disposed on at least a partial area of an area in which the plurality of light sources are not disposed on the printed circuit substrate, a color conversion light guide layer disposed on the light sources, a non-color conversion light guide layer disposed on a surface of the color conversion light guide layer, a transparent film disposed on the color conversion light guide layer and the non-color conversion light guide layer and spaced apart from the light sources and the reflective layer, and light diffusion patterns disposed on a surface of the transparent film and corresponding to each light source.

Abstract: A subject of the invention is the source of LED lighting that improves human cognitive performance during work activities or in any activity and simulates sun radiation in the biologically beneficial range 460 to 660 nm, for more than 90%. The whole system of the LED lighting source is set in such a way that 4.5 to 6% of blue and turquoise light radiation is added to the light radiation emitted from white LED chips, and it is advantageous if of equal radiation intensity. This measurement will provide for balancing of radiation intensity to 90% of the sunshine level. The generated combined light radiation of the cognitive LED lighting source has CRI 98 and correlated colour temperature 4000 to 4700 K, the sun radiation has correlated colour temperature 4982 K and CRI 99.5.

Abstract: Disclosed is a backlight module. The backlight module includes a back plate, a light guide plate, and a clamp; the back plate includes a back plate body, and a plurality of side plates disposed along a periphery of the back plate body and connected to the back plate body, and a plane of each side plate is intersected with a plane of the back plate body. The light guide plate is disposed on a side, connected to the side plate, of the back plate body, and a gap is present between the light guide plate and each of the plurality of side plates. The clamp is disposed in the gap between the light guide plate and at least part of the plurality of side plates, and interference-fitted with the gap. The clamp is resilient, and the clamp and the side plate are positioned by a projection-recess fitting structure.

Abstract: The embodiments of the application provide a backlight module and a displaying device, relating to the technical field of display. The backlight module comprises a first support structure, an optical film material and a buffer structure; the first support structure is arranged on a side away from a light-outgoing side of the optical film material, and the first support structure and the optical film material have a through-hole; the buffer structure comprises a first buffer portion arranged in the through-hole, and a rigidity of the first buffer portion is less than a rigidity of the first support structure. The backlight module is internally provided with the buffer structure, and the first buffer portion in the buffer structure is arranged in the through-hole that penetrates through the first support structure and the optical film material.

Abstract: The disclosure relates to the technical field of liquid crystal display, and discloses a liquid crystal display module backlight structure which includes a light blocking tape, a FPC strip, rubber-iron layer, a reflective sheet, a light enhancement prismatic lens, a light guide plate, and a matt film layer, a first end of the matt film layer overlaps the FPC light strip and a second end overlaps the light enhancement prismatic lens; the first end is bonded to the light blocking tape and the second end is positioned between the light enhancement prismatic lens and the light guide plate.

Abstract: A light-transmitting assembly of a display device, a signal indicator, and the display device are provided in the embodiments of the present disclosure. The light-transmitting assembly of the display device includes: a light-transmitting adjustment member including a plurality of first patterns, a light transmittance of each first pattern is less than a light transmittance of a region of the light-transmitting adjustment member other than the first pattern, and each light-shielding area ratio of the first patterns is a ratio of a sum of areas of all the first patterns in any one region of the light-transmitting adjustment member to an area of the any one region.

Abstract: A waveguide illuminator includes adjacent linear and slab waveguide areas. An input light beam is guided in a linear waveguide, is split into a plurality of sub-beams to propagate in individual linear waveguides to a slab waveguide area and form an output light beam in the slab waveguide area. An array of out-couplers is disposed in the slab waveguide area. The array of out-couplers out-couples portions of the output light beam forms an array of out-coupled beam portions for illuminating a display panel. Locations of the array of out-couplers are coordinated with locations of individual pixels of the display panel, thereby improving efficiency of light utilization by the display panel.

Abstract: A luminaire module (100) includes light-emitting elements (LEEs) (110) arranged to provide light; a light guide (130) including a receiving end (131a) and an opposing end (131b), the receiving end (131a) arranged to receive light provided by the LEEs (110), a core (134) including a first transparent material with a first refractive index (n1), the core (134) having a pair of opposing side surfaces (132a, 132b) extending along a length of the light guide (130) between the receiving and opposing ends (131a, 131b), and a cladding (136) including a second material having a second smaller refractive index (n2), the cladding (136) extending across and being in contact with at least a portion of the opposing side surfaces (132a, 132b) forming a cladding-core interface. The cladding-core interface is optically smooth.