The present specification relates to a compound containing nitrogen, and a color conversion film, a backlight unit, and a display device, including the same.

The invention relates to various aspects of a μ-LED or a μ-LED array for augmented reality or lighting applications, in particular in the automotive field. The μ-LED is characterized by particularly small dimensions in the range of a few μm.

A electronic device is provided. The electronic device includes a circuit board, a first light-emitting element and a second light-emitting element disposed on the circuit board along a first direction. The backlight module includes a light guide plate and an adhesive structure between the circuit board and the light guide plate and having a first opening and a second opening. The first and second light-emitting elements are disposed in the first and second openings respectively. A portion of the adhesive structure disposed between the first and second openings includes a first part and a second part, the first part is disposed between the first and second light-emitting elements, and the second part is connected with the first part and extends toward the light guide plate. A second maximum width of the second part is greater than a first maximum width of the first part along the first direction.

Provided are a light source circuit unit that improves light extraction efficiency, as well as an illuminator and a display that include such a light source circuit unit. The light source circuit unit includes: a circuit substrate having a wiring pattern on a surface thereof, the wiring pattern having light reflectivity, a circular pedestal provided on the circuit substrate, a water-repelling region provided at least from a peripheral edge portion of the pedestal to a part of a side face of the pedestal, and one or two or more light-emitting device chips mounted on the pedestal, and driven by a current that flows through the wiring pattern.

Laser backlight source for a narrow-frame edge-lit type liquid crystal display. The laser backlight includes visible laser groups, beam shaping devices, reflectors and a liquid crystal display light guide plate. After being reflected by reflectors to change a laser propagation direction by 180 degrees, laser beams emitted by visible lasers are incident on the liquid crystal display light guide plate through a light-permeable surface. When being incident on the lateral light-permeable surface of the liquid crystal display light guide plate via the reflectors, the visible laser beams emitted by adjacent visible laser groups generate light overlap larger than 10% of the area of each light spot. A sum of lengths of laser spots of the visible laser groups at a same waveband on the lateral light-permeable surface of the liquid crystal display light guide plate is greater than or equal to 0.65 times of the length of the light-permeable surface.

Lighting system including visible-light source, optical system, mounting system, and control system. Visible-light source includes plurality of semiconductor light-emitting devices (SLEDs) and selectably generates: visible-light emissions having cyan-ish color point; and visible-light emissions having orange-ish color point. Optical system and mounting system are integrated with visible-light source. Optical system is arranged to combine together, into combined light emissions, visible-light emissions from SLEDs among plurality of SLEDs. Mounting system is arranged for directing combined light emissions as up-light emissions. Control system is coupled with visible-light source and selectably causes visible-light emissions to have cyan-ish color point or orange-ish color point. Control system and optical system cooperatively form combined up-light emissions as having dynamic spectrum for emulating orange-ish sky color at time of day selected to represent sunrise sky or to represent sunset sky, changing over time for emulating cyan-ish sky color at another time of day selected to represent mid-day sky.

A light-emitting module includes: a plurality of light sources; and a lightguide plate including a plurality of light source placement sections, in each of which at least one light source is arranged, arrayed in a first direction and a second direction orthogonal to the first direction. The lightguide plate defines at least one first-A light control groove and at least one first-B light control groove that extend parallel to the second direction between a first light source placement section and a second light source placement section adjacent to the first light source placement section in the first direction, and at least one second-A light control groove and at least one second-B light control groove that extend parallel to the first direction between the first light source placement section and a third light source placement section adjacent to the first light source placement section in the second direction.

A single edge lit lighting module is disclosed which produces tailored light distributions valuable in many illumination applications. The lighting module comprises a unique light scattering optical element which is aligned with one or more LED light sources along one of its edges and works in combination with configured reflective surfaces. Light distributions attainable using the invention include, but are not limited to, symmetric and asymmetric bi-lobed “batwing” distributions for wide area direct and indirect lighting, and tilted or asymmetric distributions for perimeter lighting. It is also possible to achieve more rounded and symmetric distributions by an additional diffuser as a cover lens. The invention's unique single edge lit construction provides the means for achieving the lighting distributions without the need for conventional two lit edges and within a compact form factor with narrow width. The invention is particularly well-suited for linear lighting fixtures that are surface mounted, suspended or recessed. Various embodiments also provide means for adjusting light distributions dynamically to control light output characteristics by controlling the input signals to the LED board included in the assembly.

A light emitting module includes a light source, a light guide member, and first and second light reflective members. The light guide member is configured to transmit light from the light source. The light guide member having an upper surface and a lower surface opposite to the upper surface. The first light reflective member is arranged on a lower surface side of the light guide member. The first light reflective member has a lower surface. The first light reflective member includes a first resin, and a first reflective body having a refractive index higher than a refractive index of the first resin. The second light reflective member is arranged on a lower surface side of the first light reflective member. The second light reflective member includes a second resin, and a second reflective body having a refractive index lower than a refractive index of the second resin.

Provided are a light guide film, a backlight unit, and a display device. Light guide portions are disposed in holes of a reflection plate on which light sources are disposed, and a light guide film is directly disposed on the reflection plate and the light guide portions to provide a light guiding function and a light shielding function. Therefore, a method of facilitating implementation of a backlight unit with a small thickness, which satisfies image quality is provided. Further, each of the light shielding patterns has different reflectances in different areas, thereby increasing the amount of light supplied to an area between light sources. Therefore, a backlight unit with a reduced number of light sources and improved image quality may be provided.