Display apparatus and manufacturing method thereof

A display device comprising:

• a display element including a substrate, a first conductive semiconductor layer on the substrate, a first activation layer on the first conductive semiconductor layer, a second conductive semiconductor layer on the first activation layer, a reflective layer on the second conductive semiconductor layer, a first protection layer covering the reflective layer, and one terminal connected to the first conductive semiconductor layer on the first protection layer and the other terminal connected to the reflective layer on the protection layer;
• a transistor including a first gate electrode on the first protection layer, a gate insulating layer on the first gate electrode, a second activation layer including an oxide semiconductor on the gate insulating layer, a source electrode and a drain electrode on the second activation layer, a second protection layer covering the source electrode and the drain electrode, and a second gate electrode on the second protection layer;
• and
• a first connection electrode connected to one terminal and a second connection electrode connected to the drain electrode,
• wherein the other terminal is connected to the source electrode.