An organic light emitting display (100; 200; 300; 400) comprising: a substrate (105; 205; 305; 405); a first driving unit (110A; 210A; 310A) and a second driving unit (110B; 210B; 310B) positioned on the substrate (105; 205; 305; 405); an insulation layer (115; 315) on the substrate (105; 205; 305; 405) between the first driving unit (110A; 210A; 310A) and the second driving unit (110B; 210B; 310B); a first light emitting diode (120; 220; 320; 420) positioned on the insulation layer (115; 315) electrically connected with the first driving unit (110A; 210A; 310A) by a lower electrode, and comprising a first organic light emitting layer (140; 240; 340); and a second light emitting diode (160; 260; 360; 460) comprising a second organic light emitting layer (180; 280; 380; 480) and an upper electrode positioned on the second organic light emitting layer (180; 280; 380; 480), the second light emitting diode (160; 260; 360; 460) being positioned on the first light emitting diode (120; 220; 320; 420); characterized by: a connection layer (195; 295; 395) positioned on the second driving unit (110B; 210B; 310B), extending from the second driving unit (110B; 210B; 310B) to the upper electrode along the first light emitting diode (120; 220; 320; 420) and the second light emitting diode (160; 260; 360; 460), and electrically connecting the upper electrode of the second light emitting diode (160; 260; 360; 460) to the second driving unit (110B; 210B; 310B). a substrate (105; 205; 305; 405); a first driving unit (110A; 210A; 310A) and a second driving unit (110B; 210B; 310B) positioned on the substrate (105; 205; 305; 405); an insulation layer (115; 315) on the substrate (105; 205; 305; 405) between the first driving unit (110A; 210A; 310A) and the second driving unit (110B; 210B; 310B); a first light emitting diode (120; 220; 320; 420) positioned on the insulation layer (115; 315) electrically connected with the first driving unit (110A; 210A; 310A) by a lower electrode, and comprising a first organic light emitting layer (140; 240; 340); and a second light emitting diode (160; 260; 360; 460) comprising a second organic light emitting layer (180; 280; 380; 480) and an upper electrode positioned on the second organic light emitting layer (180; 280; 380; 480), the second light emitting diode (160; 260; 360; 460) being positioned on the first light emitting diode (120; 220; 320; 420); characterized by: a connection layer (195; 295; 395) positioned on the second driving unit (110B; 210B; 310B), extending from the second driving unit (110B; 210B; 310B) to the upper electrode along the first light emitting diode (120; 220; 320; 420) and the second light emitting diode (160; 260; 360; 460), and electrically connecting the upper electrode of the second light emitting diode (160; 260; 360; 460) to the second driving unit (110B; 210B; 310B). a connection layer (195; 295; 395) positioned on the second driving unit (110B; 210B; 310B), extending from the second driving unit (110B; 210B; 310B) to the upper electrode along the first light emitting diode (120; 220; 320; 420) and the second light emitting diode (160; 260; 360; 460), and electrically connecting the upper electrode of the second light emitting diode (160; 260; 360; 460) to the second driving unit (110B; 210B; 310B).