In a communication system for downloading programs from a center to in-vehicle terminals, a center can check whether downloading has been completed normally or a program is operating normally in an in-vehicle terminal. In a liquid crystal display panel which forms a display region by providing liquid crystal in a gap defined between one substrate and another substrate, a weir which is continuously formed so as to surround the display region and a sealing material which is arranged to cover the weir are arranged on a surface of one substrate. In varying embodiments of the invention, the context is determined via one or more of: direct specification by the user; direct measurement using one or more sensors; a user-modifiable profile indicating context; one or more potentially user-modifiable rules that indicate context; and, and inferential analysis utilizing a model, such as a Bayesian network or other statistical model.