A backlight unit includes a first light guide plate, a second light guide plate disposed over the first light guide plate, and a first wavelength conversion layer disposed between the first light guide plate and the second light guide plate.

A multilayer assembly for an electronic device includes a substrate film configured to accommodate electronics on at least first side thereof, a number of light sources on the first side of the substrate film and configured to emit light of predetermined frequency or frequency band, a plastic lightguide layer molded onto the first side of the substrate film and at least partially embedding the light sources, the plastic lightguide layer being of optically at least translucent material, and a masking layer provided on the outer surface of the plastic lightguide layer, wherein the masking layer defines a window for letting light emitted by the embedded light sources and propagated within the plastic lightguide layer to pass through the masking layer towards the environment.

A display device is provided and includes a display panel comprising a substrate; a case provided on a back side of the substrate, the case having an outer surface; and a flexible wiring board, one end of which is connected to a top surface of the substrate, curved along the outer surface of the case; wherein the flexible wiring board is fixed to a side surface of the substrate and the outer surface of the case with an adhesive.

A lighting device includes a light source, a light guide plate, a lower frame, an upper frame, and an elastic member. The light guide plate has a light emitting surface, and another plate surface as a back surface. The lower frame has a bottom surface portion and a side surface portion, and receives the light source and the light guide plate therein. The upper frame has a top surface portion facing the light emitting surface, a side surface portion, and a pressing portion extending toward the light guide plate from an end portion of the side surface portion of the upper frame. A clearance is formed between the top surface portion and the pressing portion. The elastic member is disposed between a side surface of the light guide plate and the side surface portion of the lower frame, and between the pressing portion and the bottom surface portion.

A luminaire includes a light module, the light module including a first acoustic panel, a second acoustic panel, and a lightguide disposed between the first acoustic panel and the second acoustic panel. The lightguide can extend from the first acoustic panel and the second acoustic panel. A frame is disposed between the first acoustic panel and the second acoustic panel and secures an edge of the lightguide within the light module. A light emitting diode is located within the frame and oriented to emit light into the edge of the lightguide.

A patterned light guide structure includes a transparent substrate with a first side and with a second side, an anti-reflective layer directly attached to the first side, a first light-shielding layer directly disposed on the anti-reflective layer, a second light-shielding layer directly disposed on the second side, and a protecting layer directly disposed on the first light-shielding layer to keep the first light-shielding layer from any deteriorating damage.

A sealed luminaire includes a light engine that has a housing assembly that defines a light emitting opening and a lightguide that is disposed in the housing assembly. The lightguide is configured to receive light from a light source through an edge thereof and emit the light through a major surface thereof and the light emitting opening. Further, the sealed luminaire includes a sealing assembly. The sealing assembly includes a protective lens that is coupled to the housing assembly of the sealed luminaire such that the protective lens covers the light emitting opening, and a gasket that is coupled to the protective lens. A mounting bracket is configured to mount the sealed luminaire in a mounting structure such that the sealed luminaire is clamped between the mounting bracket and the mounting structure and the gasket creates a seal between the sealed luminaire and the mounting structure.

The present invention discloses a light emitting device. The light emitting device includes a housing, a first light emitting module and a second light emitting module. The first light emitting module is provided with a first light emitting area and is disposed on the housing. The second light emitting module is provided with a second light emitting area and is disposed on the housing and surrounds the first light emitting module. A first luminance in the first light emitting area is higher than a second luminance in the second light emitting area, and the first luminance and the second luminance are separately controlled.

Disclosed are a backlight module and a display device. The backlight module includes: an optical film set; a light guide plate; a reflector plate; and a back plate. The back plate includes a base plate and a support portion disposed on a periphery of the base plate. The reflector plate is disposed on the base plate, the light guide plate is disposed on a side of the reflector plate away from the base plate, and the optical film set is disposed on a side of the light guide plate away from the reflector plate, one end of the support portion located in the same plane as the optical film set away from the base plate.

A sealed luminaire includes a light engine that has a housing assembly that defines a light emitting opening and a lightguide that is disposed in the housing assembly. The lightguide is configured to receive light from a light source through an edge thereof and emit the light through a major surface thereof and the light emitting opening. Further, the sealed luminaire includes a sealing assembly. The sealing assembly includes a protective lens that is coupled to the housing assembly of the sealed luminaire such that the protective lens covers the light emitting opening, and a gasket that is coupled to the protective lens. A mounting bracket is configured to mount the sealed luminaire in a mounting structure such that the sealed luminaire is clamped between the mounting bracket and the mounting structure and the gasket creates a seal between the sealed luminaire and the mounting structure.