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:
Oct. 07, 2025
Filed:
Oct. 29, 2021
Seiko Epson Corporation, Tokyo, JP;
Hiroaki Jiroku, Suwa, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A light emitting device includes a substrate, and a first columnar structure group having first columnar structures at a light emitting section and first intermediate columnar structures, a second columnar structure group having second columnar structures at a region other than the light emitting section and second intermediate columnar structures, an inter-layer insulating layer covering the first and second columnar structure groups, a conductive layer coupled to the first columnar structure group via a contact hole provided in the inter-layer insulating layer, and a first electrode terminal electrically coupled to the conductive layer. Each of the first intermediate columnar structures includes a light propagation layer and a mask layer. Each of the second intermediate columnar structures includes an insulating layer and the mask layer. The conductive layer and the first electrode terminal partially overlap the second columnar structure group in a plan view.