Splicing display device

The invention discloses a tiled display device which at least comprises a first unit display module and a second unit display module which are in lap joint in the first direction. The first unit display module comprises a first unit display area and a first unit non-display area adjacent to the second unit display module; the second unit display module comprises a second unit display area and a second unit non-display area adjacent to the first unit display module; the first unit non-display area is in lap joint with the display side or the non-display side of the second unit display area, so that the orthographic projection of the first unit display area on the first reference plane is connected with the orthographic projection of the second unit display area on the first reference plane, and the first reference plane is parallel to the first unit display area. The display picture of the tiled display device is complete and has no tiled area, the display effect of the tiled display device is improved, and then the film watching effect of a user is optimized.