Devices and assemblies for providing light to a display panel, including methods of attaching such devices and assemblies to a circuit board, are disclosed. An illustrative device can include a light emitting panel including at least one light interface for receiving light from a light source. The light interface may define an aperture adapted to receive a portion of the light source, forming an air gap between the light source and interface. A number of centering ribs and/or beveled sections can be used to align the light source within the aperture during assembly of the device to a circuit board.