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:
Apr. 11, 2023
Filed:
Jun. 15, 2021
Sharp Kabushiki Kaisha, Sakai, JP;
Peter John Roberts, Oxford, GB;
David James Montgomery, Bampton, GB;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A light-emitting structure includes a substrate, a sub-pixel stack, a cover layer over the sub-pixel stack, and at least one interface between the substrate and the cover layer. The at least one interface has an interface roughness. The sub-pixel stack includes an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The sub-pixel stack is over the substrate and configured to emit light including a scattering component caused by the interface roughness and a cavity component separate from the scattering component. A ratio of a luminance of the scattering component to a luminance of the cavity component increases with a viewing angle relative to a display normal. An optical power of the scattering component is a fraction of an optical power of the cavity component.