The present invention relates to a wireless communication system, and more particularly, to a downlink signal transmission and reception method and device taking into account antenna port relationship. In a liquid crystal display device including a liquid crystal layer exhibiting a blue phase, a first wall-like structure body is formed over a first electrode layer, a second wall-like structure body is provided over a second electrode layer, and a dielectric film covers them. The information messages can be browsed and navigated through online data results and their graphical representation based on said information message definition, wherein the data is retrieved from at least one common database.