providing a first substrate and a second substrate;

forming a switch layer on the first substrate, wherein the switch layer comprises a first, a second and a third switch elements, and each of the switch elements comprises a channel region, a source and a drain;

forming a first insulating layer on the switch layer;

forming a conductive layer on the first insulating layer, and patterning the conductive layer to expose a portion of the first insulating layer, wherein the remaining conductive layer respectively serves as a common electrode layer, an anode layer and a cathode connecting layer;

forming a second insulating layer on the exposed portion of the first insulating layer;

forming a self-light emitting device layer on the anode layer;

forming a cathode layer on the self-light-emitting device layer and the cathode connecting layer, wherein the cathode layer is electrically connected to the cathode connecting layer;

forming a third insulating layer on the second insulating layer and the cathode layer such a way wherein a top surface of the common electrode layer being exposed by the third insulating layer; and

forming a reflective-type display unit module layer on the second substrate, and disposing the reflective-type display unit module layer with the second substrate onto the third insulating layer.