A display device includes a substrate, a plurality of first light-emitting units, a first driving unit, a plurality of second light-emitting units, and a second driving unit. The substrate has a top surface facing an object, and the top surface includes two local surfaces for disposing the first light-emitting units and the second light-emitting units respectively. The first driving unit and the second driving unit provide different currents based on an included angle between a line passing through the object and a center of each local surface and an extended line starting from the center of each local surface and paralleling the normal direction of each local surface.