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:
Oct. 03, 2017
Filed:
Jul. 18, 2014
Boe Technology Group Co., Ltd., Beijing, CN;
Chang Yen Wu, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
A tandem organic light emitting diode and a preparation method thereof are provided. The tandem organic light emitting diode includes: at least two light-emitting units (); a charge generation layer () disposed between the light emitting units (); wherein, the charge generation layer () includes a mixed conductive layer (), and the mixed conductive layer () is made by mixing at least one material having a conductivity greater than 10S/cm with a content of 5˜95 wt % and at least one material having a conductivity less than 10S/cm with a content of 95˜5 wt %. The tandem organic light emitting diode is applicable in a display device.