公开(公告)号：US20240206228A1

公开(公告)日：2024-06-20

申请号：US18366597

申请日：2023-08-07

Applicant: LG Display Co., Ltd.

Inventor： Dojoong KIM

IPC: H10K59/121 ,  H10K59/122 ,  H10K59/123 ,  H10K59/131 ,  H10K59/35 ,  H10K59/80

CPC classification number: H10K59/1213 ,  H10K59/122 ,  H10K59/123 ,  H10K59/131 ,  H10K59/353 ,  H10K59/80518 ,  H10K59/878 ,  H10K59/8792

Abstract: A display apparatus may include a first substrate including a plurality of first sub-pixels and a plurality of second sub-pixels, a first thin film transistor and a second thin film transistor disposed in a first sub-pixel of the first sub-pixels of the first substrate, a first anode disposed in the first sub-pixel of the first substrate and connected to the first thin film transistor, a second anode disposed in a second sub-pixel of the second sub-pixels of the first substrate and connected to the second thin film transistor, a first emission part disposed on the first anode, a second emission part disposed on the second anode and a cathode disposed on the first emission part and the second emission part.

公开(公告)号：US20230209865A1

公开(公告)日：2023-06-29

申请号：US17972259

申请日：2022-10-24

Applicant: LG Display Co., Ltd.

Inventor： Daeil KANG ,  Joungwon WOO ,  Gihong KIM ,  Jaekyeong YUN ,  Samjong LEE ,  Dojoong KIM

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

CPC classification number: H01L51/5228 ,  H01L27/3246 ,  H01L51/5271 ,  H01L51/56 ,  H01L2227/323

Abstract: A display device can include a substrate including a light emitting area and an auxiliary electrode contact portion for providing an electrical connection with one or more elements, an auxiliary electrode disposed in the auxiliary electrode contact portion and having an electrode hole, a transparent conductive layer covering the auxiliary electrode and having a concave portion above the electrode hole, at least one bank disposed on the transparent conductive layer and exposing the concave portion and an upper surface of the transparent conductive layer that is adjacent to the concave portion, an organic layer disposed on the at least one bank and the exposed upper surface of the transparent conductive layer, and a cathode electrode disposed on the organic layer and a side surface of the concave portion.

公开(公告)号：US20220209170A1

公开(公告)日：2022-06-30

申请号：US17535117

申请日：2021-11-24

Applicant: LG Display Co., Ltd.

Inventor： Daeil KANG ,  Joungwon WOO ,  Soojin KIM ,  Samjong LEE ,  Dojoong KIM

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50 ,  H01L51/56

Abstract: A display device can include a substrate having a light emitting area and a non-light emitting area; an anode electrode disposed in the light emitting area; a metal layer disposed in the non-light emitting area and connected to a first driving power; an auxiliary electrode disposed on the metal layer and including at least one electrode hole exposing the metal layer; a bank disposed on an edge region of the anode electrode and an edge region of the auxiliary electrode; a light emitting layer disposed on a region of the anode electrode exposed by the bank; an electron transport layer disposed on the light emitting layer and the auxiliary electrode; and a cathode electrode disposed on the electron transport layer, in which the electron transport layer is in direct contact with the metal layer through the at least one electrode hole.

公开(公告)号：US20210202667A1

公开(公告)日：2021-07-01

申请号：US17134397

申请日：2020-12-26

Applicant: LG Display Co., Ltd.

Inventor： Dojoong KIM ,  Jonghoon YEO ,  Hyungi HONG

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

Abstract: A display panel includes a substrate including an emission area and a non-emission area; a driving element for driving the display panel; an auxiliary electrode placed in the non-emission area, and spaced apart from the driving element; a protective layer placed on the driving element and the auxiliary electrode; a first electrode placed on the protective layer, and connected to the driving element; a first organic material layer placed on the first electrode; a second electrode placed above the first organic material layer and the protective layer; a second organic material layer placed between the second electrode and the first organic material layer; and a contact hole penetrating through the protective layer, and exposing the auxiliary electrode, wherein the second electrode is electrically connected to the auxiliary electrode within the contact hole.

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：US20200212145A1

公开(公告)日：2020-07-02

申请号：US16721682

申请日：2019-12-19

Applicant: LG Display Co., Ltd.

Inventor： Soojin KIM ,  Daeil KANG ,  Dojoong KIM

IPC: H01L27/32

Abstract: An organic light-emitting display comprises a substrate having a first area and second and third areas neighboring the first area in a column direction and defined in edge parts of both sides in the first area; a plurality of subpixels arranged on the substrate in the column direction and a row direction crossing the column direction; a plurality of first electrodes allocated to each of the plurality of subpixels; and a bank positioned on the first electrodes, wherein the bank comprises a first bank having a first opening exposing the plurality of first electrodes arranged in the row direction; and a second bank having a second opening exposing the plurality of first electrodes arranged in the column direction in the first area and a third opening exposing the one first electrode in at least one of the second area and the third area.

公开(公告)号：US20200185475A1

公开(公告)日：2020-06-11

申请号：US16688571

申请日：2019-11-19

Applicant: LG Display Co., Ltd.

Inventor： Dojoong KIM ,  Daeil KANG ,  Soojin KIM ,  Samjong LEE ,  Saehoon OH ,  Hyungi HONG

IPC: H01L27/32

Abstract: The present disclosure provided an organic light-emitting display device comprising: a substrate where a first direction and a second direction intersecting each other are defined, the substrate on which sub-pixels arranged along the first direction and the second direction; first electrodes of organic light-emitting diodes allocated respectively to the sub-pixels; a first bank having first openings exposing the first electrodes; and a second bank having second openings exposing the first electrode on the first bank, wherein in at least one region, the second opening simultaneously exposes at least two first electrodes neighboring in the third direction.