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. 24, 2024
Filed:
May. 22, 2023
Seoul Viosys Co., Ltd., Gyeonggi-do, KR;
Dae Hong Min, Gyeonggi-do, KR;
Jun Ho Yoon, Gyeonggi-do, KR;
Woo Cheol Gwak, Gyeonggi-do, KR;
Jin Woo Huh, Gyeonggi-do, KR;
Yong Hyun Baek, Gyeonggi-do, KR;
Seoul Viosys Co., Ltd., Gyeonggi-do, KR;
Abstract
A light emitting device includes a substrate; a pattern of a plurality of protrusions protruding from the substrate; a first semiconductor layer provided on the substrate; an active layer provided on the first semiconductor layer; and a second semiconductor layer provided on the active layer, in which each of the protrusions includes a first layer formed integrally with the substrate and protruding from an upper surface of the base substrate; and a second layer provided on the first layer and formed of a material different from that of the first layer.