The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12484384 B1

Date of Patent:

Nov. 25, 2025

Filed:

Oct. 31, 2022

Electroluminescent display device and method of manufacturing the same

Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventor:

Kang-Hyun Kim, Paju-si, KR;

Assignee:

LG Display Co., Ltd., Seoul, KR;

Attorney:

Seed Intellectual Property Law Group LLP

Primary Examiner:

Victoria K Hall

Int. Cl.

CPC ...

H01L 27/32 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01); H01L 51/56 (2006.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/805 (2023.01); H10K 59/122 (2023.01); H10K 59/123 (2023.01); H10K 59/131 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01);

U.S. Cl.

CPC ...

H10K 59/122 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/805 (2023.02); H10K 59/123 (2023.02); H10K 59/131 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02);

Abstract

An electroluminescent display device includes a substrate; a first electrode on the substrate; a connection pattern on the substrate, the connection pattern comprising a same material as the first electrode; a bank covering edges of the first electrode and the connection pattern; an auxiliary bank on the bank corresponding to the connection pattern; a light-emitting layer on the first electrode; and a second electrode on the light-emitting layer, the bank, and the auxiliary bank, wherein the auxiliary bank has a reversely inclined side surface, and wherein the light-emitting layer includes a hole auxiliary layer, a light-emitting material layer, and an electron auxiliary layer, the electron auxiliary layer has an opening exposing the connection pattern, and the second electrode contacts the connection pattern through the hole.

Find Patent Forward Citations