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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 12538648 B1

PDFFull Text
Date of Patent:
Jan. 27, 2026

Filed:

Oct. 04, 2022

Top emission type electroluminescence display with reduced distance between anode and cathode

Applicant:

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

Inventor:

Sungbin Shim, Paju-si, KR;

Assignee:

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

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Sue A Purvis

Assistant Examiner:

Seyon Ali-Simah undefined Punchbeddell

Int. Cl.
CPC ...
H10K 50/86 (2023.01); H10D 86/40 (2025.01); H10D 86/60 (2025.01); H10K 59/121 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/865 (2023.02); H10D 86/481 (2025.01); H10D 86/60 (2025.01); H10K 59/1213 (2023.02); H10K 59/1216 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 2102/3026 (2023.02);
Abstract

An electroluminescence display can include a pixel on a substrate, and a light emitting element in the pixel. The light emitting element can include a first electrode, an emission layer on the first electrode, and a second electrode on the emission layer. The electroluminescence display can further include a light shield layer under the emission layer with a planarization layer there-between, where the light shield layer overlaps a first portion of the emission layer. A first distance is formed between the first electrode and the second electrode at the first portion of the emission layer. A second distance is formed between the first electrode and the second electrode at a second portion of the emission layer different from the first portion, and the first distance is smaller than the second distance.

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