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:
Dec. 08, 2015
Filed:
Dec. 27, 2014
National Tsing Hua University, Hsinchu, TW;
Chien-Tien Chen, Hsinchu, TW;
Jwo-Huei Jou, Hsinchu, TW;
Abstract
The present invention provides a series of spirally configured cis-stilbene/fluorene hybrid materials, which are spirally-configured cis-stilbene/fluorene derivatives having glass transition temperatures ranged from 110° C. to 135° C., decomposition temperatures ranged from 380° C. to 425° C., reversible electron transport property, and balanced charges motilities. In addition, a variety of experimental data have proved that this spirally configured cis-stilbene/fluorene hybrid materials can indeed be used as a hole-blocking type electron-transporter and/or a host material for phosphorescent OLEDs. Moreover, the experiment data also reveal that the OLEDs using the spirally configured cis-stilbene/fluorene hybrid materials can indeed be used as the hole-blocking type electron-transporter or as a host materials, which are able to show excellent external quantum efficiency (η), current efficiency (η), power efficiency (η), maximum luminance (L), and device lifetime performances much better than the conventional or commercial OLEDs.