Patent ID: 7003328

Claim:
A mobile terminal apparatus comprising: a main body display section having a main body display surface; external memory connection means for attaching an external memory by insertion thereto so as to be freely taken out and put in and for detachably connecting an expansion display section thereto in place of said external memory, said expansion display section having an expansion display surface larger than said main body display surface; display control means for controlling said main body display section to display information when said expansion display section is attached by insertion into said external memory connection means and for controlling said expansion display section to display said information after said expansion display section is attached by insertion into said external memory connection means; detection means for detecting attachment of said expansion display section by insertion into said external memory connection means; and separation means for separating associated information from said information to be displayed according to a detection result of said detection means when said information to be displayed is accompanied by said associated information, whereby said display control means controls only said expansion display section to display said information according to said detection result of said detection means when said information to be displayed is not accompanied by said associated information, and controls said expansion display section to display said information and controls said main body display section to display said associated information according to said detection result of said detection means when said information to be displayed is accompanied by said associated information wherein said separation means separates an undetermined input character as said associated information, upon entering said undetermined input character for drafting a sentence, from determined input characters as said information to be displayed, upon entering said determined input characters for drafting the sentence.