US 8,427,747 B2 · OLED light extraction films laminated onto glass substrates

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.

Claims6

Dependent claims

A light extraction film laminated to a glass substrate for organic light emitting diode devices, comprising:

a flexible transparent film;
a nanostructured layer having a first surface applied to the flexible transparent film and having a second surface opposite the first surface;
a planarizing backfill layer applied over the second surface of the nanostructured layer, wherein the backfill layer has a higher index of refraction than the nanostructured layer;
a glass substrate laminated to the flexible transparent film on a side opposite the nanostructured layer;
and
a region between the flexible transparent film and the glass substrate, wherein the region comprises one or more air gaps enclosed by an adhesive between the flexible transparent film and the glass substrate.

3 more elements

Dependencies are inferred from the claim text.

OLED light extraction films laminated onto glass substrates

Life of this patent

OLED light extraction films laminated onto glass substrates

Life of this patent

Abstract

Claims6