A method to manufacture an organic electroluminescent device comprising the steps of - providing a substrate covered with a pattern of the first electrodes separated by a first gap having a first width between adjacent first electrodes to electrically insulate the first electrodes against each other, - depositing the organic light emitting layer stack as a contiguous layer stack on top of the pattern of the first electrodes, - depositing the second electrode as a contiguous layer on top of the organic light emitting layer stack, - removing the second electrode and the organic light emitting layer stack above the first gap between the first electrode providing a second gap above the first gap with a second width larger than the first width in order to provide non-covered contacting areas of the first electrodes, - depositing a first electrical connection on top of the first electrode and depositing a second electrical connection on top of the second electrode, - encapsulating the electroluminescent layer stacks with a cover lid comprising conductive paths sealed to the substrate providing a gap between the electroluminescent layer stacks and an inner side of the cover lid, and - establishing a conductive bridge between the first electrode of at least one electroluminescent layer stack, involved in the serial connection to the second electrode of another electroluminescent layer stack involved in the serial connection by connecting the first and second electrical connections (61, 63) to the conductive paths arranged at the inner side of the cover lid suitable for providing a serial connection of the electroluminescent layer stacks. - providing a substrate covered with a pattern of the first electrodes separated by a first gap having a first width between adjacent first electrodes to electrically insulate the first electrodes against each other, - depositing the organic light emitting layer stack as a contiguous layer stack on top of the pattern of the first electrodes, - depositing the second electrode as a contiguous layer on top of the organic light emitting layer stack, - removing the second electrode and the organic light emitting layer stack above the first gap between the first electrode providing a second gap above the first gap with a second width larger than the first width in order to provide non-covered contacting areas of the first electrodes, - depositing a first electrical connection on top of the first electrode and depositing a second electrical connection on top of the second electrode, - encapsulating the electroluminescent layer stacks with a cover lid comprising conductive paths sealed to the substrate providing a gap between the electroluminescent layer stacks and an inner side of the cover lid, and - establishing a conductive bridge between the first electrode of at least one electroluminescent layer stack, involved in the serial connection to the second electrode of another electroluminescent layer stack involved in the serial connection by connecting the first and second electrical connections (61, 63) to the conductive paths arranged at the inner side of the cover lid suitable for providing a serial connection of the electroluminescent layer stacks.