Patent ID: 8552446

Claim:
An optoelectronic device, comprising a first and a second optoelectronic active region arranged side by side and mutually spaced apart so as to form a interstitial region therebetween, said first and second optoelectronic active region comprising a reflective rear electrode, a front electrode, and an organic optoelectronic material disposed therebetween, and a cover layer superimposed on said first and second optoelectronic active regions facing said front electrode and covering at least the combined surface of said first and second optoelectronic active regions and said interstitial region, said cover layer comprising a plurality of light-scattering particles of a first material dispersed in a transparent matrix comprising at least partly hydrolyzed silica sol, wherein the refractive index of said particles of said first material is higher than the refractive index of the transparent matrix.