logo

For the Inventor, By the Inventor

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 12239017 B1

PDFFull Text
Date of Patent:
Feb. 25, 2025

Filed:

Aug. 31, 2021

Organic light-emitting devices, display panels and display apparatuses

Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Siqi Wang, Beijing, CN;

Haiyan Sun, Beijing, CN;

Xiaojin Zhang, Beijing, CN;

Assignee:

BOE Technology Group Co., Ltd., Beijing, CN;

Attorney:

IPro, PLLC

Primary Examiner:

Robert D Harlan

Int. Cl.
CPC ...
H01L 51/00 (2006.01); C09K 11/06 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01); H10K 101/20 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 85/654 (2023.02); C09K 11/06 (2013.01); H10K 85/631 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1022 (2013.01); H10K 50/11 (2023.02); H10K 2101/20 (2023.02); H10K 2101/40 (2023.02); H10K 2101/90 (2023.02);
Abstract

Organic light-emitting devices, display panels and display apparatuses are provided. An organic light-emitting device includes: a first electrode layer; a first light-emitting layer provided on the first electrode layer and including a first host material and a first guest material; a second light-emitting layer provided on the first light-emitting layer and including a second host material and a second guest material; and a second electrode layer provided on the second light-emitting layer. The first guest material has a general structural formula as indicated in Formula I. X is selected from carbon, nitrogen, oxygen, sulfur, or boron; Y is selected from nitrogen or boron, and Y is different from X; and Rand Rare selected from hydrogen, methyl, isopropyl, tert-butyl, substituted or unsubstituted aryl, substituted or unsubstituted alkyl aryl, or substituted or unsubstituted nitrogen-containing aryl, respectively.

Find Patent Forward Citations

Loading…