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. 03, 2024
Filed:
Aug. 13, 2019
Osram Oled Gmbh, Regensburg, DE;
Sebastian Pickel, Regensburg, DE;
Katharina Werner, Regensburg, DE;
Bernd Böhm, Obertraubling, DE;
Anna Strozecka-Assig, Regensburg, DE;
Anna Nirschl, Regenstauf, DE;
OSRAM OLED GMBH, Regensburg, DE;
Abstract
Provided is an optoelectronic semiconductor chip including a semiconductor layer sequence having an active layer, a doped current spreading layer and an output coupling layer, which are arranged one above the other in this order. The active layer generates primary radiation during intended operation. The current spreading layer includes a larger lateral electrical conductivity than the output coupling layer. The output coupling layer includes output coupling structures for coupling out radiation on an exit side facing away from the active layer. The output coupling layer includes a lower absorption coefficient for primary radiation than the current spreading layer.