Patent ID: 9226362
Filing Date: 2015-12-29
Classification: H05B,Y02B

Abstract:
1. An inorganic, transparent thin film electroluminescent display element with a display area having at least one emissive area and at least one non-emissive area, the display element comprising a layer structure on a substrate, said layer structure comprising a first conducting layer comprising transparent conductive material, having a thickness in the range 30-250 nm, a first insulating layer comprising insulating, inorganic material, a luminescent layer comprising zinc sulfide, having a thickness in the range 30-250 nm, a second insulating layer comprising insulating, inorganic material, a second conducting layer comprising transparent conductive material, having a thickness in the range 30-250 nm, a third insulating layer comprising insulating, inorganic material having a lower refractive index than that of the second conducting layer, characterized in that each of said first and second conducting layers comprises at least one conductor element at the at least one emissive area and at least one passive film element at the at least one non-emissive area.