unidade de fonte de luz, dispositivo de iluminação, dispositivo de exibição, receptor de televisão, e método para fabricar folha de reflexão para unidade de fonte de luz

摘要

It is an object of the present invention to provide a light source unit enabling cost reduction. A light source unit of the present invention includes a plurality of LEDs 16, an LED board 17 having a surface on which the plurality of LEDs 16 is arranged, and an elongated reflection sheet 30 provided on the surface of the LED board 17 on which the LEDs are arranged. The reflection sheet 30 has a plurality of light-source-surrounding reflecting portions 31 surrounding the LEDs 16 in a plan view, and a plurality of connecting portions 32 connecting the adjacent light-source-surrounding reflecting portions 31. Each of the connecting portions 32 has a width Y2 narrower than a width Y1 of each of the light-source-surrounding reflecting portions in a short direction of the reflection sheet 30.