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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 12238953 B1

PDFFull Text
Date of Patent:
Feb. 25, 2025

Filed:

May. 19, 2021

Display device including concave shaped auxiliary electrode

Applicant:

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

Inventors:

Sang-Il Shin, Paju-si, KR;

Youngju Park, Seoul, KR;

Assignee:

LG DISPLAY CO., LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Xia L Cross

Int. Cl.
CPC ...
H10K 50/824 (2023.01); H10K 59/123 (2023.01); H10K 59/124 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/19 (2023.01); H10K 50/828 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/824 (2023.02); H10K 59/123 (2023.02); H10K 59/124 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 50/19 (2023.02); H10K 50/828 (2023.02); H10K 2102/3026 (2023.02);
Abstract

A display device includes a substrate including a plurality of sub-pixels; a planarization layer disposed on the substrate and including a trench adjacent to the plurality of sub-pixels; a plurality of light emitting elements disposed in the plurality of sub-pixels and sharing an organic layer and a cathode; and an auxiliary electrode disposed in the trench and connected to the cathode. A side surface of the auxiliary electrode has a concave shape. The organic layer has an open portion that is disconnected by the auxiliary electrode. Therefore, it is possible to minimize current leakage through the common layer and prevent an increase in resistance of the cathode by the auxiliary electrode.

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