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 12648294 B1

Date of Patent:

Jun. 02, 2026

Filed:

Dec. 21, 2022

Light emitting element and display device including the same

Applicant:

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

Inventors:

Yu Jeong Lee, Paju-si, KR;

Wook Song, Paju-si, KR;

Assignee:

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

Attorney:

Fenwick & West LLP

Primary Examiner:

Dawn L Garrett

Int. Cl.

CPC ...

H10K 50/15 (2023.01); H10K 50/12 (2023.01); H10K 50/13 (2023.01); H10K 50/16 (2023.01); H10K 50/18 (2023.01);

U.S. Cl.

CPC ...

H10K 50/15 (2023.02); H10K 50/12 (2023.02); H10K 50/13 (2023.02); H10K 50/16 (2023.02); H10K 50/181 (2023.02);

Abstract

Disclosed are a light emitting element and a display device including the same, wherein a hole generation layer is further provided between a hole transport layer and an emission layer, in addition to an electron blocking layer, in order to control the speed of electrons and holes introduced into the emission layer, whereby it is possible to prevent accumulation of carriers at the electron blocking layer or the hole transport layer, and therefore it is possible to reduce turn-on voltage, to maintain uniform efficiency irrespective of change in current density, to prevent defects at specific gradation, and to increase lifetime.

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Lee, Yu. (2026). Light emitting element and display device including the same (U.S. Patent No. 12648294). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12648294

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