Keypads for electrical devices

Abstract

A mobile telephone includes a body, a display, and a keypad. The keypad has a plurality of individual numeral keys assigned to individual numerals and may be rotated with respect to the body. In this way it is possible for the presentation of information on the display to remain in a fixed orientation with respect to a user while the body is rotated about the display so that the mobile telephone can be converted from right-handed to left-handed use or the display can be moved from a first orientation to a second orientation.

What is claimed is:  
     
         11 . An electrical device comprising: 
 a body,    a display having a non-unity aspect ratio for display of an image, wherein the image may be switched between a portrait mode and a landscape mode; and    a keypad wherein the keypad is rotatable with respect to the body to optimise the electrical device for both horizontal and vertical viewing modes so that it is possible for a user to change use of the display from a portrait mode to a landscape mode whilst maintaining a particular orientational relationship between the keypad and the image on the display.    
     
     
         12 . An electrical device comprising: 
 a body,    a display for display having a non-unity aspect ratio of an image, wherein the image may be switched between a portrait mode and a landscape mode; and    a keypad in which the keypad and the image on the display are both rotatable by 90° with respect to the body in order to maintain a particular orientational relationship between the keypad and the image on the display.    
     
     
         13 . An electrical device according to  claim 11  or  claim 12 , wherein the keypad has a plurality of individual numeral keys.  
     
     
         14 . An electrical device according to  claim 11  or  12 , wherein the keypad has a navigation key for navigating about the display.  
     
     
         15 . An electrical device according to  claim 13 , wherein the numeral keys are disposed about the navigation key.  
     
     
         16 . An electrical device according to  claim 15 , wherein the plurality of individual numeral keys are disposed in a circular pattern about the navigation key.