Light-emitting device with wavelenght conversion layer having quantum dots

US11271141B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Maria J. Anc · Groveland, US
• Darshan Kundaliya · Beverly, US
• Madis Raukas · Boston, US
• David O'Brien · Portland, US

Key dates

• Filing date: Nov 26, 2018
• Grant date: Mar 8, 2022
• Expiry date: Mar 19, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/882

Abstract

A light-emitting device including a light-emitting semiconductor chip having a semiconductor layer sequence having at least one light-emitting semiconductor layer and a light-outcoupling surface, the light-emitting device further including a wavelength conversion layer arranged on the light-outcoupling surface, the wavelength conversion layer including quantum dots.