公开(公告)号：US20220209209A1

公开(公告)日：2022-06-30

申请号：US17539998

申请日：2021-12-01

Applicant: LG DISPLAY CO., LTD.

Inventor： Hoonsok SON ,  Dojoong KIM

IPC: H01L51/56 ,  H01L27/32 ,  H01L51/52

Abstract: The present disclosure relates to an organic light emitting display device and a method for manufacturing the same. In the organic light emitting display device according to the present disclosure, a bank which exposes an auxiliary electrode connected to a cathode electrode of an organic light emitting device is composed of multiple layers, and particularly, since the lowest layer of the bank, which is adjacent to the auxiliary electrode, includes an undercut, the cathode electrode and the auxiliary electrode are directly connected so that it is possible to prevent burnt due to a short-circuit between the cathode electrode and Ag included in the auxiliary electrode.

公开(公告)号：US20200185470A1

公开(公告)日：2020-06-11

申请号：US16701736

申请日：2019-12-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Hoonsok SON

IPC: H01L27/32

Abstract: An organic light-emitting display device including a substrate on which a plurality of sub-pixels are arranged; a thin film transistor and a first electrode of an organic light-emitting diode connected to the thin film transistor, the thin film transistor and the organic light-emitting diode being disposed in each of the plurality of sub-pixels; a first bank layer disposed on the first electrode and exposing the first electrode; and a second bank layer disposed on the first bank layer and exposing the first bank layer and the first electrode. Further, the first bank layer includes first regions overlapping with via holes through which the thin film transistor is connected to the first electrode and second regions which are regions other than the first regions, and a thickness of the first regions is greater than a thickness of the second regions.