Light-emitting device and backlight

A light-emitting device comprising:

• a package having a recessed portion, the recessed portion being defined by:
• a bottom surface having a longitudinal direction and a short direction;
• and
• lateral walls surrounding the bottom surface;
• a first light-emitting element and a second light-emitting element aligned in the longitudinal direction of the bottom surface on the bottom surface of the recessed portion;
• and
• a wavelength conversion member provided in the recessed portion so as to convert light from the first light-emitting element into light having a different wavelength,
• wherein the first light-emitting element and the second light-emitting element each have a polygonal shape other than a rectangular shape in a front view from a direction substantially perpendicular to the bottom surface,
• wherein the first light-emitting element and the second light-emitting element are disposed on the bottom surface away from each other so that a longest side of each of the first light-emitting element and the second light-emitting element is parallel to or substantially parallel to the longitudinal direction of the bottom surface and so that a first side of the first light-emitting element and a second side of the second light-emitting element facing the first side are parallel to or substantially parallel to each other in the front view, and
• wherein the wavelength conversion member is disposed at least in a region on the bottom surface between the first light-emitting element and the second light-emitting element.