To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.

A suspended lighting fixture for direct/indirect lighting including a pair of curved sheets which are joined by a linear heat-dissipating structural element and cooperatively forming a trough-shaped structure configured to be suspended with a downward orientation using one or more suspension elements. The lighting fixture further includes a linear light source with one or more linear arrays of light emitting diodes (LEDs) optically coupled to light input edges of the curved sheets, a linear heat-dissipating structural element joining curved sheets, and an opaque elongated housing at least partially enclosing the structural element, light source, and the light input edges.

A planar light source includes: a support member; a light guide member disposed on the support member and having a light source positioning part; and a light source disposed on the support member while being in the light source positioning part of the light guide member. The support member includes: an insulation base having a first face positioned closer to the light source and a second face positioned opposite the first face, a first conductive layer disposed on the first face of the insulation base and electrically connected to the light source, an adhesive layer disposed on and in contact with the first face of the insulation base and the first conductive layer, and a light reflecting sheet disposed on the adhesive layer.

A closure for an apparatus comprises: a plurality of light sources; a lightguide to distribute light from the plurality of light sources, the lightguide having a first primary surface opposite a second primary surface, wherein the first primary surface has a first surface treatment, and wherein light emitted from the lightguide indicates a status of the apparatus; and a frame supporting the plurality of light sources and the lightguide for selective movement of the closure vertically or horizontally relative to the apparatus.

An optical substrate and a display device are provided. The optical substrate includes a light guide plate and a plurality of light selection units, wherein, the light guide plate includes a light-incident surface and a light-exiting surface, and the light-exiting surface includes a plurality of light-exiting regions; each light selection unit is configured to select light incident from the light-incident surface and propagating in the light guide plate, such that monochromatic light of different colors are emitted from multiple light-exiting regions corresponding to the each light selection unit, and each of the multiple light-exiting regions emits monochromatic light of a single color.

The present application provides a backlight module and a display device. The backlight module includes a first backlight assembly and a second backlight assembly. The second backlight assembly is provided with a backlight hole, and at least a portion of the first backlight assembly is accommodated in the backlight hole. The first backlight assembly includes a first light source and a light guide element. The light guide element is used to guide a light beam from the first light source, which enters the light guide element, out of the backlight hole, so that the light is evenly distributed in the backlight hole, and a full-screen display design of the display device is realized.

A micro-slit scattering element based backlight, a multiview display, and a method of backlight operation include reflective micro-slit scattering elements configured to provide emitted light having a predetermined light exclusion zone. The micro-slit scattering element based backlight includes a light guide configured to guide light and a plurality of the reflective micro-slit scattering elements having sloped reflective sidewalls configured to reflectively scatter out the guided light as the emitted light. The sloped reflective sidewalls of the reflective micro-slit scattering elements are configured to provide the predetermined light exclusion zone of the emitted light. The multiview display includes the reflective micro-slit scattering elements arranged as an array of micro-slit multibeam elements. The multiview display also includes an array of light valves to modulate the directional light beams to provide the multiview image, except within the predetermined light exclusion zone.

An electronic device includes a light source member configured to provide a first light, a color conversion member disposed on the light source member and including a first conversion material that converts the first light into a second light and a second conversion material that converts the first light into a third light, and a low-refractive index layer disposed on the light source member and disposed on at least one of upper and lower portions of the color conversion member. The low-refractive index layer includes a matrix part, a plurality of hollow inorganic particles dispersed in the matrix part, and a plurality of void parts defined by the matrix part.

A planar light source includes a light guide member having a through hole, a light source, a first light adjusting member, a second light adjusting member, and a light transmissive member. The first light adjusting member having reflectivity and transmissivity with respect to light from the light source is disposed on or above an upper face of the light source in the through hole. The second light adjusting member having reflectivity and transmissivity with respect to the light from the light source is disposed above and apart from the first light adjusting member. The first light transmissive member having a higher transmissivity with respect to the light from the light source than the transmissivities of the first and second light adjusting members is disposed between the first light adjusting member and the second light adjusting member, and between a lateral face of the light source and the light guide member.

A backlight module and a method of manufacturing the backlight module are disclosed. The backlight module includes a substrate including a first end and a second end opposite to the first end. An ink layer is disposed on the substrate and has a reflectivity gradually increasing from the first end to the second end. At least two of light-emitting units are arranged in an array on the ink layer.