A quantum dot-containing composition includes a quantum dot, a ligand having coordinating groups, which coordinates to the surface of the quantum dots, and the ligand is represented by Formula I. ##STR00001##
In Formula I, A is an organic group including one or more coordinating groups selected from an amino group, a carboxy group, a mercapto group, a phosphine group, and a phosphine oxide group, Z is an (n+m+l)-valent organic linking group, R is a group including an alkyl group, an alkenyl group, or an alkynyl group each of which may have a substituent, Y is a group having a polymer chain which has a degree of polymerization of 3 or greater and which includes a polyacrylate skeleton or the like. n and m are each independently 1 or greater, l is 0 or greater, and n+m+l is integer 3 or greater. At least two coordinating groups are included in a molecule.

A quantum dot-containing composition includes a quantum dot, a ligand having coordinating groups, which coordinates to the surface of the quantum dots, and the ligand is represented by Formula I. ##STR00001##
In Formula I, A is an organic group including one or more coordinating groups selected from an amino group, a carboxy group, a mercapto group, a phosphine group, and a phosphine oxide group, Z is an (n+m+l)-valent organic linking group, R is a group including an alkyl group, an alkenyl group, or an alkynyl group each of which may have a substituent, Y is a group having a polymer chain which has a degree of polymerization of 3 or greater and which includes a polyacrylate skeleton or the like. n and m are each independently 1 or greater, l is 0 or greater, and n+m+l is integer 3 or greater. At least two coordinating groups are included in a molecule.

A light source apparatus includes a plurality of light emitting apparatuses. Each of the light emitting apparatuses includes a plurality of light emitting devices each of which has a light emitting area and a non-light emitting area on an emission surface thereof that emits light. At least two light emitting apparatuses of the light emitting apparatuses constitute a light emitting apparatus group disposed such that the emission surfaces of the respective light emitting apparatuses are parallel to each other with a predetermined distance, and that a distance between light emitting areas of the respective light emitting apparatuses when viewed along a direction perpendicular to the emission surfaces of the at least two of the light emitting apparatuses is shorter than a distance between the light emitting areas of the respective light emitting apparatuses when the emission surfaces of the respective light emitting apparatuses are on the same plane.

A non-unitary light fixture having a housing, neck and wall panel that is affixed to a wall or other supporting structure. The fixture includes a separable neck that mounts to the housing and wall panel on opposite ends with a water-tight seal created by a flange on each end of the neck. The flange overlaps the perimeter of respective mounting apertures within the housing and wall panel and thereby prevents water from entering either the housing or wall panel. The fixture further includes a tube extending between the housing and wall panel for routing electrical wires to a lighting assembly housed within the shade.

Alight-emitting element of the present disclosure includes a light-emitting section including a plurality of light-emitting regions, and one or a plurality of microlens members controlling a traveling direction of light emitted from each of the light-emitting regions. Alternatively, the light-emitting element of the present disclosure includes a light-emitting section including one light-emitting region, and a plurality of microlens members controlling a traveling direction of light emitted from the one light-emitting region. Alternatively, the light-emitting element of the present disclosure includes a light-emitting section including a plurality of light-emitting regions, and one or a plurality of microlens members controlling a traveling direction of each light emitted from the plurality of light-emitting regions.

According to one embodiment, an illumination device comprises a plurality of light emitting elements that are disposed on a main surface of a wiring board, a light diffusion distance maintaining layer, a wavelength conversion layer, and a prism sheet, wherein the main surface of the wiring board is divided into a plurality of segment regions, n (n>1) light emitting elements are provided in each of the segment regions, the light emitting elements are independently driven in units of the segment regions, and a thickness of the light diffusion distance maintaining layer is ½ times or more a pitch of the segment regions adjacent to each other.

The present application relates to an electrical connection apparatus and an illumination system. The electrical connection apparatus comprises: a strip-shaped main body; a first and a second electrical connection terminals, provided at a first end and a second end of the main body respectively, and configured to be electrically connected each other and to a first electrical and a second interfaces respectively; and a spacing structure provided between the first end and the second end of the main body, having a platform portion provided at a part of the spacing structure facing towards the first end and a step portion higher than the platform portion, provided at a part of the spacing structure facing towards the second end, and the step portion fits the surface of the second electrical interface. The technical solutions of the present application provide a stable electrical connection between interfaces.

A light source unit and a display device that are further thinned while evenness in brightness on an emission surface is secured are provided.

A light source unit and a display device of the present invention include a light source installation surface on which at least one micro light source is installed, a first light scattering body that includes a base which is arranged with the light source installation surface and has a light-transmitting property, and a reflection pattern which is formed on a first surface of the base positioned on a light source installation surface side based on light distribution characteristics of the at least one micro light source, and a second light scattering body that is arranged between the first light scattering body and the at least one micro light source.

A light source unit and a display device that are further thinned while evenness in brightness on an emission surface is secured are provided.

A light source unit and a display device of the present invention include a light source installation surface on which at least one micro light source is installed, a base that is arranged with the light source installation surface and has a light-transmitting property, a reflection pattern that is formed on a first surface of the base positioned on a light source installation surface side based on light distribution characteristics of the at least one micro light source, and a low reflection pattern that is formed in a region of the light source installation surface positioned around the at least one micro light source based on the light distribution characteristics. A reflectivity in the region of the light source installation surface in which the low reflection pattern is formed is less than a reflectivity in a region other than the region in which the low reflection pattern is formed.

The lighting device disclosed in the embodiment of the invention includes a substrate including a metal layer; a plurality of light sources arranged in a first direction on the substrate; a plurality of protrusions having a length in the first direction on the metal layer; and a resin layer disposed on the plurality of light sources and the plurality of protrusions, wherein the metal layer includes a first metal layer electrically connected to the light source and a second metal layer coupled to the plurality of protrusions, and the first metal layer and the second metal layer are separated from each other, and the plurality of protrusions may be disposed to be spaced apart from each other in a second direction perpendicular to the first direction.