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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 12396346 B1

PDFFull Text
Date of Patent:
Aug. 19, 2025

Filed:

Mar. 17, 2021

Display device with emission region having multiple emission layers

Applicant:

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

Inventors:

Hyomin Ko, Suwon-si, KR;

Beomjoon Kim, Seoul, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;

Attorney:

KILE PARK REED & HOUTTEMAN PLLC

Primary Examiner:

Peter Bradford

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 27/32 (2006.01); H01L 51/52 (2006.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/818 (2023.01); H10K 59/122 (2023.01); H10K 59/35 (2023.01); H10K 59/12 (2023.01); H10K 59/80 (2023.01);
U.S. Cl.
CPC ...
H10K 59/35 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/171 (2023.02); H10K 50/818 (2023.02); H10K 59/122 (2023.02); H10K 59/12 (2023.02); H10K 59/80518 (2023.02); H10K 59/87 (2023.02); H10K 59/873 (2023.02); H10K 59/876 (2023.02);
Abstract

A display device includes a base layer including first and second emission regions, first and second electrodes, a first organic layer in the first emission region, and a second organic layer in the second emission region. The first organic layer includes a first electron transport layer, a first auxiliary layer on the first electron transport layer, a first emission layer on the first auxiliary layer, a second auxiliary layer on the first emission layer, and a first hole transport layer on the second auxiliary layer. The second organic layer includes a second electron transport layer, a third auxiliary layer on the second electron transport layer, a second emission layer on the third auxiliary layer, a fourth auxiliary layer on the second emission layer, and a second hole transport layer on the fourth auxiliary layer.

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