Solid-state reflective display panel and display device

A display device, comprising:

• a solid-state reflective display panel, comprising:
• an array substrate;
• and
• pixel reflection units disposed on the array substrate, wherein each of the pixel reflection units includes sub-reflection units, and each of the sub-reflection units includes a heating element, a reflecting layer, a resonant cavity and a phase change material layer, stacked in sequence along a direction away from the array substrate, and the sub-reflection units include at least a first sub-reflection unit and a second sub-reflection unit that are adjacent to each other,
• wherein in one of the pixel reflection units:
• the first sub-reflection unit includes a first surface, and the first surface is a top surface of the first sub-reflection unit away from the heating element;
• the second sub-reflection unit includes a second surface, and the second surface is a top surface of the second sub-reflection unit away from the heating element;
• and
• the first surface and the second surface are not parallel to each other and an angle between the first surface and the second surface is less than 180 degrees, such that an incident light is reflected and filtered by at least the first sub-reflection unit and the second sub-reflection unit sequentially.