PURPOSE: To provide the touch panel device with which the layout of keys having the high frequency of usage can be automatically changed into prescribed positions.

CONSTITUTION: A direct key control part 5 receives the information of a used key from an LCD control part 2, counts the number of times of usage of that key and stores the result in a direct key memory part 6. Next, the direct key control part 5 reads the data showing the number of times of usage of all the keys from the direct key memory part 6 and stores the key information of keys having the high frequency of usage through a main control part 4 into direct key areas M1-Mn of a main memory 3.