Window for buildings, window for display devices, and multi-functional window structure thereof

The invention discloses a multi-functional window structure which comprises a first transparent substrate, a second transparent substrate, a wavelength conversion layer, a partition layer, a plurality of solar-cell receiving units, and a plurality of light sources, wherein the solar-cell receiving units and the light sources are respectively arranged at the side edges of the first transparent substrate and the second transparent substrate; the first transparent substrate is provided with an incident plane and a first surface, and a slant angle is formed between the first surface and the incident plane; the wavelength conversion layer is arranged on the first surface, and the partition layer is used for partitioning the first transparent substrate and the second transparent substrate; and the wavelength conversion layer can convert part of incident wavebands of sunlight into absorbable wavebands which can be absorbed by the solar-cell receiving units, so that the solar-cell receiving units can store solar ener