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:
Sep. 06, 2022
Filed:
Mar. 14, 2019
Osram Oled Gmbh, Regensburg, DE;
Anna Strozecka-Assig, Regensburg, DE;
Johannes Saric, Regensburg, DE;
OSRAM OLED GMBH, Regensburg, DE;
Abstract
In one embodiment, the optoelectronic semiconductor chip () comprises a semiconductor layer sequence () with an active zone () for generating radiation with a wavelength of maximum intensity L. A mirror () comprises a cover layer (). The cover layer () is made of a material transparent to the radiation and has an optical thickness between 0.5 L and 3 L inclusive. The cover layer () is followed in a direction away from the semiconductor layer sequence () by between inclusive two and inclusive ten intermediate layers () of the mirror (). The intermediate layers () alternately have high and low refractive indices. An optical thickness of at least one of the intermediate layers () is not equal to L/4. The intermediate layers () are followed in the direction away from the semiconductor layer sequence () by at least one metal layer () of the mirror () as a reflection layer.