Patent · US Active

OLED light extraction films laminated onto glass substrates

US8427747B2 · kind B2 · utility

15Cited by

2References

6Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Ha T. Le · Windom, US
Jun-Ying Zhang · Perrysburg, US
Sergey Lamansky · Redmond, US
Scott M. Tapio · Falcon Heights, US
Encai Hao · Woodbury, US
David B. Stegall · Austin, US
Serena L. Mollenhauer · Saint Paul, US

Key dates

Filing date	Apr 22, 2010
Grant date	Apr 23, 2013
Priority date	—
Expiry date	Jul 17, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/10
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A light extraction film laminated to a glass substrate for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. A glass substrate is laminated to the flexible substantially transparent film on a side opposite the nanostructured layer and including an ultra-low index region between the film and the glass substrate. The ultra-low index region is used to reduce optical losses occurring with the glass substrate.

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