A liquid crystal alignment agent includes a polymer composition obtained by subjecting a diamine component and a tetracarboxylic dianhydride component to a reaction, a solvent, and a hydroxyl compound. The connection establishment unit comprises a definition unit for placing one or more connection definitions relating to the connection in an entity that is independent of any actual connection socket used for the session. A compression rod that engages the mounting face and the backplate in a compressive manner towards one another. Postprocessing then puts the modified state information in proper form for output.