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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 12295200 B1

PDFFull Text
Date of Patent:
May. 06, 2025

Filed:

Sep. 07, 2021

Light-emitting device with improved light emission efficiency and display apparatus including the same

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Wonjae Joo, Seongnam-si, KR;

Hyun Koo, Seongnam-si, KR;

Ajeong Choi, Suwon-si, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Shouxiang Hu

Int. Cl.
CPC ...
H10K 50/852 (2022.12); H10K 50/13 (2022.12); H10K 50/15 (2022.12); H10K 50/16 (2022.12); H10K 50/856 (2022.12); H10K 102/00 (2022.12);
U.S. Cl.
CPC ...
H10K 50/13 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/852 (2023.01); H10K 50/856 (2023.01); H10K 2102/351 (2023.01);
Abstract

A light-emitting device includes: a reflective layer; a first electrode provided on the reflective layer; a second electrode facing the first electrode; a first emission layer provided between the first electrode and the second electrode; a second emission layer provided between the first emission layer and the second electrode, and a first partial transmission mirror provided between the first emission layer and the second emission layer so that a first or higher order resonance mode is formed between the reflective layer and the first partial transmission mirror, and a second or higher order resonance mode is formed between the reflective layer and the second electrode.

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