Dual display portable telephone device and allocation means for display process thereof

Claim 1

A portable telephone device comprising: two displays of substantially a same size, positioned so that display content on each of the displays is visible in one field of vision; and allocation means for allocating a different display process to each of the displays, each display process being a process for outputting different display data including at least one of image data and character data, wherein the allocation means includes: a storage unit for storing a table showing a correspondence between each of the displays and the display process being allocated thereto; a specification unit for specifying a display process to be allocated to one of the displays; a selection unit for selecting, according to the correspondence shown in the table, one of the displays to allocate the specified display process to; and an updating unit for updating the table so as to show the correspondence between the selected display and the specified display process; the specification unit includes: a detection unit for detecting a call signal, wherein the specification unit, on detecting the call signal, specifies a display process which outputs display data forming an image showing to a communication state and which is to be newly allocated to one of the displays; and the selection unit includes: a judgement unit for judging, based on the table, whether a state of either of the displays is one of (a) having no display process allocated thereto, and (b) having a display process outputting the display data forming an image of stand-by display allocated thereto, wherein the selection unit, when the judgement unit judges the state of one of the displays to be one of (a) and (b), selects the display as a display to which the specified display process is to be newly allocated, and the allocation means allocates the specified display process to the selected display.