Projection splicing wall

The utility model belongs to the projection splicing technical field and provides a projection splicing wall. A plurality of display units are spliced together so as to form a complete large-screen display wall; the display unit comprises a light display processor; the light display processor is composed of a shell, an optical engine, an optical engine control board, a power source, a high-voltage plate, a lamp bulb, a fan system and a DVI-I cable connector, wherein the power source supplies power for the other components, the high-voltage plate is connected with the lamp bulb, and the optical engine control board is connected with the optical engine, the DVI-I cable connector and the fan system respectively. According to the light display processor of the projection splicing wall of the utility model, the contrast of the display units and the visual effect of the projection wall can be effectively improved.