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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 12690351 B1

PDFFull Text
Date of Patent:
Jul. 21, 2026

Filed:

Oct. 12, 2023

Display apparatus

Applicant:

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

Inventors:

Kyoungji Bae, Paju-si, KR;

Jaekyeong Yun, Paju-si, KR;

Sungmoo Kim, Paju-si, KR;

Takashi Hirano, Paju-si, KR;

Jinah Kwak, Paju-si, KR;

Heetae Lim, Paju-si, KR;

Assignee:

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

Attorney:

Seed Intellectual Property Law Group LLP

Primary Examiner:

Christopher M Raabe

Int. Cl.
CPC ...
H10K 50/13 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 59/35 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 59/351 (2023.02); H10K 50/13 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 2102/351 (2023.02);
Abstract

A display apparatus includes a substrate including a plurality of subpixels. Each of the plurality of subpixels includes a first electrode, a first emission part on the first electrode, the first emission part including a first hole functional layer and a first emission layer, a first charge generating layer on the first emission part, a second emission part on the first charge generating layer, the second emission part including a second hole functional layer and a second emission layer, a second charge generating layer on the second emission part, and a third emission part on the second charge generating layer, the third emission part including a third hole functional layer and a third emission layer. Thicknesses of the first hole functional layers respectively at the plurality of subpixels are different.

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