Reflection sheet, lighting device and display device

A lighting device comprising:

• light sources including pairs of electrodes;
• a light source substrate including a mounting surface on which the light sources are mounted;
• and
• a reflection sheet stacked on the mounting surface of the light source substrate, wherein the reflection sheet includes:
• an insulating sheet made of an insulating material;
• and
• a reflection layer including a metal thin film stacked on the insulating sheet,
• holes are drilled through the reflection layer and the insulating sheet in a stacking direction in which the reflection layer is stacked on the insulating sheet at positions corresponding to the light sources so that the light sources are exposed therethrough,
• the reflection layer is divided into divided reflection areas by slits,
• the holes are formed in the divided reflection areas, respectively, and
• two mounting portions of the light source substrate on which two of the pair of electrodes of a corresponding one of the light sources disposed in one of the holes are mounted are projected from a different two of the divided reflection areas and exposed through the hole when viewed in a plan view from a reflection sheet side.