Patent · US Active

Method and apparatus of applying light and heat to quantum dots to increase quantum yield

US10544313B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Nathan McLaughlin · Portland, US
Kari N. Haley · Portland, US
Morgan Vonnahme · Beaverton, US
Brian Theobald · Beaverton, US
Norbert Puetz · Niederaußem, DE

Key dates

Filing date	Feb 6, 2017
Grant date	Jan 28, 2020
Priority date	—
Expiry date	Feb 6, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S977/95
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A method of increasing photo-luminescent quantum yield (PLQY) of QDs to be used as down-converters placed directly on an LED chip includes synthesizing a plurality of quantum dots, applying energy to the plurality of quantum dots to increase PLQY of the plurality of quantum dots, dispensing the plurality of quantum dots onto the LED chip, and curing the LED chip.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.