Patent ID: 7633221
Filing Date: 2009-12-15
Classification: H01L,Y10S

Abstract:
1. An organic electroluminescent element comprising: a substrate having a first surface; a first electrode located above the first surface of the substrate, the first electrode having a first surface adjacent to the substrate and second surface opposite the first surface; an emissive layer including an organic electroluminescent material, the emissive layer located on the second surface of the first electrode and having a first surface adjacent to the first electrode and a second surface opposite the first surface; and a second electrode located on the second surface of the emissive layer; wherein the organic electroluminescent element is viewed as intersected by an imaginary first plane perpendicular to the first surface of the substrate and a plurality of imaginary second planes parallel to the first plane, such that every one of such plurality of imaginary second planes is spaced from such first plane, and such first plane and second planes define a first cross-section, corresponding to the first imaginary plane, and a plurality of second cross-sections, corresponding to the plurality of imaginary second planes, of the organic electroluminescent element, the second surface of the first electrode having a multidimensionally meandering surface shape such that: wherein the first and second surfaces of the emissive layer have a multidimensionally meandering surface shape such that: