Patent ID: 7122957
Filing Date: 2006-10-17
Classification: H01L

Abstract:
1. An electroluminescent device comprising: a first and a second electrode layer, at least the second electrode layer being provided in accordance with a desired pattern, one or more functional layers, the one or at least one of said functional layers being an electroluminescent layer, a relief pattern having one or more overhanging sections for defining the desired pattern of the second electrode layer, wherein the device is a matrix display device of the passive type comprising row electrodes as the first electrode layer, column electrodes as the second electrode layer, independently addressable electroluminescent elements formed at crossings of row and column electrodes, and the relief pattern having overhanging sections in the form of strips extending along and between the column electrodes, and wherein each of the strips include at least one protrusion extending transversely to the boundary of each of the strips and having a free end, wherein the at least one protrusion hinders transport of a fluid along a capillary channel formed by an overhanging section and a surface supporting the overhanging section.