An irradiated multilayer film has a first layer and a second layer. An unfoldedfolded state of a body of a foldable portable telephone set is supervised by an unfoldedfolded state detection section. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. In response to loading a class file of a class in the first set, the original class names are replaced with corresponding substitute class names in the class file. Molecular axes in the liquid crystal layer rotate under an electric field applied between the pixel electrodes and the common electrodes.