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.:
Date of Patent:
Apr. 16, 2024
Filed:
Dec. 21, 2019
Lg Display Co., Ltd., Seoul, KR;
In Bum Song, Paju-si, KR;
Seung Hee Yoon, Paju-si, KR;
Gwi Jeong Cho, Paju-si, KR;
So Yeon Ahn, Paju-si, KR;
Yoo Yi Son, Paju-si, KR;
Tae Shick Kim, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of a spirofluorene-substituted amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including a first hole blocking material of an azine derivative and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.