Patent ID: 7596390

Claim:
A cellular phone comprising a display device with a changeable viewing angle, the cellular phone comprising: a specifying function section configured to accept specifications of one or more functions executable by the cellular phone; a viewing angle change control section configured to change the viewing angle of the display device according to a specified function; a storage section configured to store viewing angle information being associated with the functions which the cellular phone has; and an update section configured to update the viewing angle information in the storage section, wherein the viewing angle change control section is further configured to change the viewing angle according to the updated viewing angle information, and wherein at least one of the one or more functions comprises a main function and a sub-function and the storage section stores the viewing angle information associated with the main function and the sub-function, and wherein when the sub-function is executed, the viewing angle change control section is configured to determine if the viewing angle information of the sub-function is set in the storage section, and if only the viewing angle information of the main function is set, display all images in the executed sub-function with the same viewing angle set for the main function, and if the viewing angle information of the sub-function is set, display an image for the sub-function with the viewing angle which is set for the sub-function.