Reflection plate, display device, and method of producing reflection plate

A reflection plate comprising:

• a substrate;
• an insulation film disposed on the substrate and having an uneven surface;
• and
• a reflection film disposed in an upper layer above the insulation film and having a surface that conforms to the uneven surface, the reflection film reflecting light, wherein:
• the insulation film includes projection portions and recesses on the uneven surface,
• the recesses are between the projection portions that are adjacent to each other,
• the projection portions are arranged at intervals,
• the projection portions include a first projection portion, a second projection portion that is adjacent to and spaced apart from the first projection portion, and a third projection portion that is adjacent to and spaced apart from the first projection portion,
• the first projection portion has a first center of gravity of a plan view outline of the first projection portion and a first top,
• the first center of gravity and the first top do not correspond to each other in a plan view,
• the second projection portion has a second center of gravity of a plan view outline of the second projection portion and a second top,
• the second center of gravity and the second top do not correspond to each other in the plan view,
• the third projection portion has a third center of gravity of a plan view outline of the third projection portion and a third top,
• the third center of gravity and the third top do not correspond to each other in the plan view,
• in the first projection portion, a line connecting the first center of gravity and the first top extends in a first direction,
• in the second projection portion, a line connecting the second center of gravity and the second top extends in a second direction,
• in the third projection portion, a line connecting the third center of gravity and the third top extends in a third direction,
• the first direction, the second direction, and the third direction cross each other,
• the recesses include first recessed portions and a second recessed portion,
• the first recessed portions are adjacent to the plan view outlines of the first projection portion, the second projection portion, and the third projection portion, respectively,
• the first recessed portions are deeper than the second recessed portion, and
• the first recessed portions are, respectively, closer to the first top, the second top, and the third top than the first center of gravity, the second center of gravity, and the third center of gravity are.