US Patent 11283051 Thin film packaging layer coated display panel and display device

A display panel includes a substrate, an organic light emitting structure, a first electrode, a light extraction layer, a protection layer, and a thin film packaging layer, which are stacked in sequence. The organic light emitting structure, the first electrode, the light extraction layer and the protection layer are coated by the thin film packaging layer. The light extraction layer is located between the protection layer and the first electrode, and completely isolates the protection layer and the first electrode.