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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 12274116 B1

PDFFull Text
Date of Patent:
Apr. 08, 2025

Filed:

Sep. 12, 2022

Organic light-emitting display apparatus and method of manufacturing the same

Applicant:

Samsung Display Co., Ltd., Yongin-si, KR;

Inventors:

Jaeik Kim, Yongin-si, KR;

Jaesik Kim, Yongin-si, KR;

Yeonhwa Lee, Yongin-si, KR;

Joongu Lee, Yongin-si, KR;

Sehoon Jeong, Yongin-si, KR;

Jiyoung Choung, Yongin-si, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Julio J Maldonado

Assistant Examiner:

Stanetta D Isaac

Int. Cl.
CPC ...
H10K 50/16 (2023.01); H10K 50/11 (2023.01); H10K 50/125 (2023.01); H10K 50/17 (2023.01); H10K 50/81 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/166 (2023.02); H10K 50/11 (2023.02); H10K 50/125 (2023.02); H10K 50/171 (2023.02); H10K 50/81 (2023.02); H10K 59/122 (2023.02); H10K 71/00 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02); H10K 2102/00 (2023.02);
Abstract

An organic light-emitting display apparatus and a manufacturing method thereof have improved process stability and reliability by reducing damage to the organic light-emitting display apparatus during a manufacturing process. The organic light-emitting display apparatus includes: a substrate, a plurality of pixel electrodes, a pixel defining film, a plurality of hole control layers respectively arranged on the pixel electrodes, a plurality of emission layers respectively arranged on the hole control layers, a plurality of buffer layers respectively arranged on the emission layers, each of the buffer layers having a highest occupied molecular orbital (HOMO) energy level greater than the HOMO energy level of each of the plurality of emission layers, and an opposite electrode integrally provided over the buffer layers.

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