The invention discloses a display screen die set. The display screen die set comprises a front panel, a rear panel and a circuit die set, wherein the circuit die set comprises a driving device, a plurality of display assemblies, and a substrate which is positioned between the front panel and the rear panel; the substrate comprises a first mounting plate and a second mounting plate which are integrally arranged; the second mounting plate extends in the horizontally direction from one end of the first mounting plate; each display assembly comprises a plurality of lamp beads which are arranged atintervals on the substrate in the extending direction of the second mounting plate and face the front panel; the driving device is arranged on the first mounting plate and partially protruded out ofthe rear panel; the driving device is not bigger than the first mounting plate; the driving device is used for supplying power to each display assembly and a driving signal to drive the lamp beads towork. According to the display screen die set, the driving device which is partially protruded from the rear panel does not influence the thickness of the display screen die set, and moreover, the size is small, and the maintenance is convenient.