Patent · US Active

Sub-electrode microlens array for organic light emitting devices

US11362311B2 · kind B2 · utility

0Cited by

19References

16Claims

0Family size

Assignee

THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

Stephen R. Forrest · Ann Arbor, US
Yue Qu · Zhuhai, CN

Key dates

Filing date	Nov 16, 2018
Grant date	Jun 14, 2022
Priority date	—
Expiry date	Nov 16, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH10K2101/10
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Substrates are disclosed that include an embedded or partially-embedded microlens array. Devices are disclosed that include an OLED disposed over a substrate having an embedded or partially embedded micro lens array. Devices as disclosed herein redirect up to 100% of the light that otherwise would be confined in organic and electrode layers toward the substrate and thus provide improved light extraction and device efficiency.

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