The present disclosure provides a lamp and a lamp system. The lamp includes two opposing side covers, a light guide plate, at least one light source and an electrical connecting assembly. The light guide plate has a light incident surface and a light emitting surface connected to the light incident surface, and the light emitting surface of the light guide plate is a curved surface. The light source is disposed in one of the side frames, and the light source is disposed near the light incident surface of the light guide plate. The electrical connecting assembly is connected to the light source to form an electrical loop.

Modular lighted display panel assemblies are disclosed that are used to provide modular lighted signage in various applications. The modular lighted display panel assemblies may be linked in a serialized fashion in certain implementations shown herein. In one particular implementation described herein, modular lighted display panel assemblies are linked to provide digital signage on a series of server racks. The techniques described herein allow implementation of some panels without the additional cost and complexity of power modules and/or lighting modules.

The systems and methods of the present disclosure provide film-ready solar signs and assemblies for installations of solar signs.

Disclosed are a backlight module and a display device. The backlight module includes a backplane, a light guide plate and a light source. The backplane includes a first surface and a second surface opposite to the first surface. The light guide plate includes a light output portion provided on the first surface and a bending portion provided with a light input end on the second surface, and an end of the light output portion facing the second surface of the backplane is bent and extended to form the bending portion. The light source is provided on the second surface and corresponds to a light input end face of the light input end.

According to one embodiment, a display device includes a display panel and a light-emitting module. The light-emitting module includes a first light source having a first light-emitting point, a second light source having a second light-emitting point, a first light guide and a second light guide forming a contact portion in contact with the first light guide. The first light guide and the second light guide are arranged in a first direction, and a distance between the contact portion and the first light-emitting point along the first direction is equal to a distance between the contact portion and the second light-emitting point along the first direction.

A recessed downlight integrates a light engine assembly with a junction box containing a driver assembly. A single torsion spring is supplied at an end of the light engine assembly remote from its connection to the junction box, while a leaf spring attaches to the junction box near its connection to the light engine assembly, or is alternatively integrated into an extension of the junction box. The leaf spring allows for a high-enough tension to hold the light unit assembly in place in thin sheet metal, while allowing for a low-enough tension to accommodate holding the light unit assembly in place in drywall or a drop ceiling.

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.

The present disclosure discloses a lighting device and a lamp apparatus. The lighting device includes a light source supply assembly and a curved light guide element. The light source supply assembly includes a fixing base and a light source module. The fixing base has two opposite first accommodating areas, and the light source module is disposed in at least one of the two first accommodating areas, two ends of the curved light guide element are inserted into the two first accommodating areas, and one end of the curved light guide element corresponding to the light source module has a light source introduction bump, the light source introduction bump has a light incident surface corresponding to the light source module, the light source module supplies a light source, the light source enters from the light incident surface and propagates along the curved light guide element.

A liquid crystal display device includes a light source, a light guide plate, a backlight unit, and a complex polarizing plate. The light guide plate includes light collecting portions to collect light rays exiting through a light exiting surface with respect to a direction perpendicular to an optical axis of the light source to direct the light rays in a frontward direction. The backlight unit includes an optical sheet to collect the light rays to direct the light rays in the frontward direction. The complex polarizing plate includes a selective reflecting sheet and a polarizing plate. The selective reflecting sheet includes a first transmission axis and a reflection axis perpendicular to the first transmission axis. The polarizing plate includes a second transmission axis. The complex polarizing plate is laid on the backlight unit with the first transmission axis and the second transmission axis perpendicular to the light collecting direction.

An optical film is disclosed. The optical film is divided into a main body and two extending portions arranged along a second direction by two imaginary lines which are extended along a first direction and parallel to each other, wherein the second direction is substantially perpendicular to the first direction. The main body is located between the two extending portions. Each of the extending portions has an abutting edge. A first length W0 of the main body along the first direction is greater than a second length W1 of the abutting edge along the first direction.