A suspension or solution for an organic optoelectronic device is disclosed. The access slot can be reinforced and designed to be barely visible but easily accessible. The print substrate-contacting element can very advantageously be the surface of a back-pressure cylinder in a print substrate-processing machine, in particular in a printing press. Accordingly, an image can be decoded and displayed correctly even with limited memory space. By using a silicon film containing an element belonging to the group 15 such as phosphorus through contact holes reaching a source region and a drain region, a metallic element promoting crystallization of an amorphous silicon film can be effectively removed or decreased and the productivity can be improved.