Display device

A display device comprises a substrate with first and second sub-pixels, SP1, SP2, disposed on the substrate. The first subpixel has a first light emitting element and a second light emitting element each configured to emit light of a first colour, with the first and second light emitting elements being coupled to the same driving transistor. The second sub-pixel has a third light emitting element and a fourth light emitting element each configured to emit light of a second colour different from the first colour. Also disclosed are display devices according to embodiments in which a redundant light-emitting element is disposed on a line substrate separate from a panel unit in which the main light-emitting element is included, thereby reducing occurrence of a defective pixel due to a defective main light-emitting element.