An organic electroluminescence device, comprising: - a substrate on which a first electrode layer is provided, - a package of layers comprising organic electroluminescence material, which package is provided on the first electrode layer , - a second electrode layer being provided on the package , - a spacer layer being provided on the second electrode layer , said spacer layer consisting of an UV-cured polymer layer comprising fluoride side groups, - a cover being provided on the spacer layer and being sealed to the substrate via a sealing material consisting of a closed line of a glass frit material, wherein the height of the sealing material is larger than the total thickness of the first electrode layer , the package of layers comprising organic electroluminescent material, the second electrode layer , and the spacer layer , wherein the cover is formed as a layer of flexible metal material with a thickness between 20 and 400 μm and having a flexural rigidity between 0.00015 Nm and 0.15 Nm which is permanently fixed by means of glue to at least a part of the spacer layer , wherein flexural rigidity is calculated according to Equation in "Theory of Plates and Shells" second edition, S. Timoshenko, S. Woinowsky-Kreiger, McGraw-Hill , and wherein there exists a non-fixed zone at the circumference of the spacer layer , which non-fixed zone has a width of 3 mm, and wherein the cover is curved around its circumference in a direction away from the spacer layer, said non-fixed zone defined as the distance between a position where the cover is not in contact any more with the spacer layer and a position where the cover is in contact with the centre of the sealing material , in a direction parallel to the package of layers comprising organic electroluminescent material, wherein the cover is connected with the second electrode layer by means of an electrical contact , said electrical contact being composed of a metal particle-filled polymer material, and wherein the electrical contact is surrounded by a further non-fixed zone in which the cover and the spacer layer are not in contact with each other, said further non-fixed zone having a width of 1.5 mm. - a substrate on which a first electrode layer is provided, - a package of layers comprising organic electroluminescence material, which package is provided on the first electrode layer , - a second electrode layer being provided on the package , - a spacer layer being provided on the second electrode layer , said spacer layer consisting of an UV-cured polymer layer comprising fluoride side groups, - a cover being provided on the spacer layer and being sealed to the substrate via a sealing material consisting of a closed line of a glass frit material, wherein the height of the sealing material is larger than the total thickness of the first electrode layer , the package of layers comprising organic electroluminescent material, the second electrode layer , and the spacer layer , wherein the cover is connected with the second electrode layer by means of an electrical contact , said electrical contact being composed of a metal particle-filled polymer material, and wherein the electrical contact is surrounded by a further non-fixed zone in which the cover and the spacer layer are not in contact with each other, said further non-fixed zone having a width of 1.5 mm. <EOS>