Patent ID: 9219249
Filing Date: 2015-12-22
Classification: H01L

Abstract:
1. An organic light-emitting device (OLED) comprising at least: a first electrode; a second electrode; an organic light emissive layer arranged between said first electrode and said second electrode; and an organic charge transport layer arranged between said first electrode and said emissive layer, wherein i) the charge transport layer is patterned, having a discontinuous pattern on a surface of the charge transport layer facing the emissive layer, the pattern including selected portions removed from an initial continuous layer via lithography or etching; and ii) an alignment layer that provides charge transport to the emissive layer is provided between said charge transport layer and said emissive layer, wherein the alignment layer is treated to promote alignment of the optical dipoles of molecules of said light emissive layer towards a common preferred direction of the molecular axes.