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:
Sep. 17, 2013
Filed:
Apr. 22, 2010
Sergey A. Lamansky, Apple Valley, MN (US);
Terry L. Smith, Roseville, MN (US);
Jun-ying Zhang, Woodbury, MN (US);
Leslie A. Todero, West Saint Paul, MN (US);
Encai Hao, Woodbury, MN (US);
Ha T. Le, Saint Paul, MN (US);
Ding Wang, Austin, TX (US);
Fei LU, Woodbuty, MN (US);
Shoichi Masuda, Tokyo, JP;
Sergey A. Lamansky, Apple Valley, MN (US);
Terry L. Smith, Roseville, MN (US);
Jun-Ying Zhang, Woodbury, MN (US);
Leslie A. Todero, West Saint Paul, MN (US);
Encai Hao, Woodbury, MN (US);
Ha T. Le, Saint Paul, MN (US);
Ding Wang, Austin, TX (US);
Fei Lu, Woodbuty, MN (US);
Shoichi Masuda, Tokyo, JP;
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
A light extraction film having internal nanostructures and external microstructures 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. External optical microstructures are applied to the flexible substantially transparent film on a side opposite the nanostructured layer to enhance light extraction from the OLED devices while providing for a more uniform luminance distribution.