公开(公告)号：US20170033307A1

公开(公告)日：2017-02-02

申请号：US15135238

申请日：2016-04-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Dongil CHOI ,  EunJung PARK ,  Sangkyoung MOON

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5064 ,  H01L27/3211 ,  H01L27/3244 ,  H01L51/5056 ,  H01L51/5265 ,  H01L51/5278 ,  H01L2251/558

Abstract: Disclosed is an organic light emitting display device that comprises a first light emitting unit between a first electrode and a second electrode, the first light emitting unit including a first hole transporting layer and a first light emitting layer; and a second light emitting unit between the first light emitting unit and the second electrode, the second light emitting unit including a second hole transporting layer and a second light emitting layer that emits a light of the same color as a light emitted by the first light emitting layer. An increase in driving voltage caused by a shift of an emission zone in the first light emitting layer or the second light emitting layer by prolonged driving is minimized which solves a problem of increased power consumption and improves the lifetime of the organic light emitting display device.

Abstract translation: 公开了一种有机发光显示装置，其包括在第一电极和第二电极之间的第一发光单元，所述第一发光单元包括第一空穴传输层和第一发光层; 以及在第一发光单元和第二电极之间的第二发光单元，第二发光单元包括第二空穴传输层和发射与由第一光发射的光相同颜色的光的第二发光层 发光层。 由于通过长时间驱动在第一发光层或第二发光层中的发射区域的偏移引起的驱动电压的增加被最小化，这解决了增加功耗并且改善了有机发光显示装置的寿命的问题。