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:
Jul. 31, 2018
Filed:
Dec. 22, 2014
Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, s-Gravenhage, NL;
Stephan Harkema, 's-Gravenhage, NL;
Nederlandse Organisatie voor toegepast-natuurwe-tenschappelijk onderzoek TNO, s-Gravenhage, NL;
Abstract
The invention relates to an organic light-emitting diode (OLED) system comprising a multi-layered structure having at least two reflective interfaces, and a semiconducting organic layer sandwiched between first and second electrodes; wherein at least one of the reflective interfaces is semi-transparent to form a microcavity in between the two reflective interfaces; wherein a layer is provided in the microcavity between an electrode and a reflective interface that is formed of a photoactive birefringent material; and wherein the photoactive birefringent material is selectively activated.