The present invention is directed to novel benzimidazole derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions modulated by the androgen receptor. Each contact comprises a mating portion and a tail portion opposite to the mating portion. One functional group is a diamide dithiolate ligand able to bind with radioisotopes. The first alignment layer and the second alignment layer respectively include a plurality of parallel first grooves and second grooves perpendicular to the first grooves formed thereon facing the liquid crystal layer. In other times, the voltage detection circuit is turned off to save power consumption.