Disclosed is a backlight unit and a display device including the same. The backlight unit includes a backlight configured to supply light in one direction, a case that accommodates the backlight, and a cabinet coupled to a top of the case, and configured to include a side wall which faces one direction. The inside of the case has a hive structure. At least one edge region of the case includes a stepped portion which is lower in height than a central region of the case to accommodate the cabinet.

According to one aspect, a luminaire comprises a luminaire housing, at least one LED disposed within the luminaire housing, and an LED driver circuit disposed within a driver housing. The driver housing comprises an inner portion and an outer portion, wherein at least a part of the inner portion is disposed between the LED driver circuit and the outer portion and wherein the LED driver circuit is in thermal communication with the outer portion.

A backlight device 12 includes at least: a plurality of LEDs 17 arranged in an annular and curved shape; a light guide plate 14 surrounded by the plurality of LEDs 17 having am outer shape along the arrangement of the plurality of LEDs 17, and guiding light from the plurality of LEDs 17; and an LED board (light source board) 18 on which the plurality of LEDs 17 are mounted and wiring portions 18c for feeding power to the plurality of LEDs 17 are formed. The LED board 18 extends along the arrangement of the plurality of LEDs 17, and has a terminated annular shape or an endless annular shape, and includes a no-wiring formed region NWA in a part with respect to the circumferential direction thereof, where the wiring portions 18c are not formed.

A wide-area solid-state illumination system employing a waveguide with two-sided segmented light emission and one or more compact solid-state light sources, such as LEDs, coupled to an edge of the waveguide. The waveguide is made of a thin sheet of optically transmissive material with a uniform thickness and has a plurality of light extraction areas distributed over the waveguide's area according to a two-dimensional pattern. The light extraction areas are separated from one another by separation areas and have different densities of light extraction surface structures. The surface structures are configured to distribute light from both sides of the waveguide. At least some of the light extraction surface structures are formed by discrete surface microstructures spaced apart from one another by distances which are greater than sizes of the individual discrete surface microstructures and at least five times less than a width of the separation areas.

A gasket for an interface between a light emitting diode (LED) and a light emitting panel (LEP) includes a first segment and a second segment. The gasket also includes a first blade extending out from a surface of the first segment and a second blade extending out from a surface of the second segment. The surface of the first segment faces the surface of the second segment.

The invention provides an LED panel light and a frame component. The frame component includes a frame and a moving plate, wherein the moving plate is assembled at the inner side of the frame movably, an extrusion space is formed between the opposite faces of the moving plate and the frame, an expansion piece is assembled in the extrusion space, the moving plate is close to a light guide plate located at the inner side of the moving plate due to an extrusion counterforce of the expansion piece, and the side face of the moving plate in the face of the light guide plate is provided with a light source assembling area for assembling a light source component.

A bio-sensor device, integrated with a display portion, includes a surface for touching by a body part, such as a finger. A light source, such as an array of LEDs, emit light through the surface so as to be reflected and partially absorbed by the body part An array of photodetectors detects light reflected back by the body part and generates signals corresponding to an image of the light reflection, which corresponds to the light absorption pattern in the body part. The light absorption pattern may correlate to a fingerprint, a blood vessel pattern, blood movement within the blood vessels, combinations thereof, or other biometric feature. A processor receives the signals from the photodetectors and analyzes the signals to determine a characteristic of the body part. The characteristic may be used to authenticate the user of the bio-sensor device by comparing the detected characteristic to a stored characteristic.

The present invention discloses a novel nightlight with a simple structure. A non-opaque light output panel is disposed on a casing. A plurality of first lamp beads is directly welded onto a control circuit board. The light emitted by the first lamp beads is guided into a light output panel after refracting or reflecting by a light guide member, which facilitates transmission of light and allows uniform and soft light outputted from the light output panel. The nightlight has the advantages of convenient use, easy manufacture and assembly and low manufacturing cost.

A light emitting module adapted to a mainboard is provided. The mainboard includes a side edge. The light emitting module comprises a circuit board and a light guide bar. The circuit board is detachably attached to the mainboard and adjacent to the side edge of the mainboard. A plurality of light emitting elements are disposed at the circuit board. The light guide bar is disposed at the circuit board, when the light emitting module is assembled to the mainboard, the light guide bar uniformly guides light from the light emitting elements. An electronic device including the light emitting device is also provided.

The present disclosure provides a light-emitting module. The light-emitting module includes a light guide plate, a light source, and a brightness adjustment element. The light guide plate has a light incident surface, a front surface, and a back surface opposite the front surface. The light incident surface is located between the front surface and the back surface and is adjacent to the front surface and the back surface. The brightness adjustment element has a strip portion and at least one protruding portion. The strip portion has a first edge proximal to the light incident surface. The protruding portion is located on the first edge of the strip portion, and the protruding portion is aligned with the light source and extends away from the first edge.