A display panel (DP) including first and second sub pixel electrodes (110,120), a first light emitting unit (200), first and second charge generation layers (300,400), a second light emitting unit (500), and an upper electrode (600). The first light emitting unit (200) is provided with a first contact hole (CNT1). The first charge generation layer (300) includes a first contact part (310) being in the first contact hole and coupled to a portion of the first sub pixel electrode (110) exposed by the first contact hole, and a first extension part (320) extending from the first contact part and being on the first light emitting unit (200). The second charge generation layer (400) and the second light emitting unit (500) are provided with a second contact hole (CNT2). The upper electrode (600) includes a first upper electrode part (610) being in the second contact hole and coupled to a second contact part (410) of the second charge generation layer (400) exposed by the second contact hole.