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.

Date of Patent:
Jun. 25, 2024

Filed:

Dec. 17, 2020
Applicant:

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

Inventor:

Kwanghoon Shin, Paju-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 50/824 (2023.01); H10K 50/816 (2023.01); H10K 59/122 (2023.01); H10K 59/124 (2023.01); H10K 59/131 (2023.01); H10K 71/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/824 (2023.02); H10K 50/816 (2023.02); H10K 59/122 (2023.02); H10K 59/124 (2023.02); H10K 59/131 (2023.02); H10K 71/00 (2023.02);
Abstract

A display device includes a substrate including an emission area and a non-emission area; a circuit element layer formed on the substrate and having circuit elements disposed thereon; an overcoat layer covering the circuit element layer; an auxiliary electrode formed on the overcoat layer in the non-emission area and composed of multiple layers with a reflective layer in between; an electron transport layer covering the auxiliary electrode; and a cathode electrode formed on the electron transport layer, wherein the auxiliary electrode includes an electrode hole passing through the multiple layers, and the reflective layer includes at least one protrusion protruding toward inside from a sidewall of the electrode hole and contacting the cathode electrode.


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