A backlight assembly and a display device including the backlight assembly include a light source which emits light, a light guide plate disposed adjacent to the light source and which receives the light emitted from the light source, a light source supporter including a bottom plane including a first region and a second region, and a first receiving unit including a bottom surface and a side wall. The light source and the light guide plate are disposed on the first region of the bottom plane, the second region extends from a portion of the first region on which the light source is disposed, the bottom surface is disposed opposite the light guide plate, and the side wall is disposed at an end portion of the bottom surface along a direction perpendicular to a plane defined by the bottom surface.

A light guide plate including a light emitting surface, a bottom surface, a light incident surface, multiple protrusion structures, and multiple grooves is provided. The light incident surface is connected between the light emitting surface and the bottom surface. The protrusion structures are disposed along a first direction and extend toward a second direction. The protrusion structures have a light condensing angle along the first direction, and the light condensing angle ranges from 10 degrees to 40 degrees. The grooves are disposed in the protrusion structures of the light guide plate. The grooves extend toward the first direction. The protrusion structures have a light receiving surface that defines each groove and is closer to the light incident surface. An angle between the light receiving surface and the bottom surface ranges from 35 degrees to 65 degrees. A display apparatus adopting the light guide plate is also provided.

A display apparatus includes a light source, a display unit including a light-transmissive portion having a predetermined design shape, and a light guide that guides light emitted from the light source to the light-transmissive portion. The display unit enables the design shape to be visually recognized when the light emitted from the light source is applied. The light guide includes a radiating portion that applies the light emitted from the light source toward the light-transmissive portion, a first peripheral wall, a second peripheral wall, an upper wall, and an outer peripheral wall. Each of the radiating portion, the first peripheral wall, the second peripheral wall, the upper wall, and the outer peripheral wall is integral to the light guide. Each or all of the first peripheral wall, the second peripheral wall, the upper wall, and the outer peripheral wall are supporting portions that support the radiating portion.

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.

A downlight apparatus includes a fixing bar, a driver box, a light container and a light source. The fixing bar has two elastic units and a central part. The two elastic units are located at two opposite sides of the central part. The two elastic units are deformed so as to pass through a central hole of a fixing plate and then are released to attach to the fixing plate. The fixing plate is fixed to a platform. The driver box includes a driver for converting an external power to a driving current. The light container has a top cover and a lateral wall. The fixing bar is fixed on the top cover protruding toward the central hole of the fixing plate. A bottom side of the driver box is placed on the central part.

A linear lighting assembly is disclosed which produces tailored light distributions valuable in many illumination applications. The linear lighting assembly comprises a unique light scattering optical element within a single edge lit linear lighting module housing configured to fit within a linear light fixture housing, both housings capable of being fabricated in a continuous extrusion process and cut to length as need for specific linear lighting assembly lengths. 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 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.

An illumination device according to one or more embodiments may include: a light guide plate unit having a front light guide plate and a rear light guide plate; a light projecting unit having an LED configured to supply light to the front light guide plate and the rear light guide plate; a moving mechanism configured to cause the light guide plate unit to reciprocate in a depth direction; and a detector having a detection region in front of the light guide plate unit in the depth direction and configured to detect the presence or absence of an object without contacting. The moving mechanism may move the light guide plate unit in accordance with a detection result of the detector.

An apparatus and system are disclosed and include a vehicle interior lighting system comprising that includes a light engine with a plurality of independently addressable light emitting diode (LED) segments, each independently addressable LED segment including at least one LED, a flexible printed circuit board (PCB) having a base and plurality of legs extending from the base, each leg supporting an independently addressable LED segment, and a light guide plate configured to provide illumination from the plurality of independently addressable LED segments inside the vehicle. A processor may be configured to receive information from a o vehicle sensing system, a vehicle communication system, or a detection system, and may generate a signal. A controller may be configured to provide one or more light control signals to modify at least one light characteristic of at least one of the plurality of independently addressable LED segments based on the signal.

A backlight unit is described. The unit includes a light emitting array having a plurality of light sources configured to emit light, and a printed circuit board on which the light sources are arranged; a light guide film configured to guide light emitted from the light sources in one direction; a color conversion layer configured to convert light that has passed through the light guide film into light of a specific color; and an optical member disposed on the color conversion layer. The light sources include first light sources arranged on a first row of the printed circuit board, and second light sources arranged on a second row of the printed circuit board. The first light sources are spaced apart from each other by a predetermined distance, and the second light sources are spaced apart from each other by the predetermined distance.

An information handling system peripheral display monitor presents visual images at a liquid crystal display panel with illumination distributed across the display panel by a backlight. A light bar of plural light emitting diodes (LEDs) at a bottom side surface of the backlight directs illumination into the backlight from an upper surface and includes plural downlight LEDs on a bottom surface to direct illumination out a downlight opening formed in a housing of the display monitor.