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:
Mar. 03, 2015
Filed:
Jan. 16, 2009
Bruno Dussert-vidalet, La Garde, FR;
Marco Mazzeo, Monteroni, IT;
Guiseppe Gigli, Rome, IT;
Mohamed Ben Khalifa, Lecce, IT;
Fabio Della Sala, Lecce, IT;
Vincenzo Maiorano, Galatina, IT;
Fabrizio Mariano, Lecce, IT;
Bruno Dussert-Vidalet, La Garde, FR;
Marco Mazzeo, Monteroni, IT;
Guiseppe Gigli, Rome, IT;
Mohamed Ben Khalifa, Lecce, IT;
Fabio Della Sala, Lecce, IT;
Vincenzo Maiorano, Galatina, IT;
Fabrizio Mariano, Lecce, IT;
Astron Fiamm Safety Sarl, Toulon, FR;
Abstract
An organic light emitting diode (OLED) emitting light downward through a transparent substrate. The OLED embeds a microcavity formed between a cathode and an anode and includes a plurality of organic layers including a light emitting layer. The plurality of organic layers include at least a first layer made of an organic doped material aimed at enhancing the transport of electrons; and at least a second layer made of an organic doped material aimed at enhancing the transport of holes. The anode is obtained by deposition of a semitransparent layer of silver (Ag) over the transparent substrate to be directly in contact with the first doped organic layer. Then, thicknesses of the first and second doped organic layers can be freely adapted to best adjust the optical characteristics of the microcavity for the wavelength of monochromatic light to be produced by the OLED.