Mobile terminal device and display control method thereof

Abstract

A mobile terminal device includes a display part, a receiving part that receives an operation to cause an image group displayed in the display part to transition, and a display controller that controls the display part such that the image group displayed in the display part makes transition based on the operation. When the image group is caused to transition, the display controller reduces an image constituting the image group and increases the number of images displayed in the display part.

1 . A mobile terminal device comprising:
 a display part;   a receiving part that receives an operation to cause an image group displayed in the display part to transition; and   a display controller that controls the display part such that the image group displayed in the display part makes transition based on the operation, wherein   the display controller reduces an image constituting the image group and increases the number of images displayed in the display part when the image group is caused to transition.   
     
     
         2 . The mobile terminal device according to  claim 1 , wherein
 the display controller does not reduce the image but causes the image group to transition, when a speed of the transition is slower than a predetermined speed.   
     
     
         3 . The mobile terminal device according to  claim 1 , wherein
 the display controller gradually decelerates the speed of the transition of the image group after performing the transition of the image group.   
     
     
         4 . The mobile terminal device according to  claim 3 , wherein the display controller restores the reduced image to an original state when the speed of the transition becomes slower than the predetermined speed by the deceleration. 
     
     
         5 . The mobile terminal device according to  claim 1 , wherein
 the receiving part detects an input to the display part, and   the display controller changes the speed of the transition by a moving speed of a position of the input relative to the receiving part.   
     
     
         6 . The mobile terminal device according to  claim 5 , wherein the display controller reduces the image and increases the number of images displayed in the display part when the moving speed of the position of the input relative to the receiving part exceeds a predetermined speed. 
     
     
         7 . The mobile terminal device according to  claim 6 , wherein the display controller maintains a state of display in which the image is reduced irrespective of the moving speed of the position of the input, when the input to the receiving part is continued after the state of the display in the display part becomes the state of display in which the image is reduced. 
     
     
         8 . The mobile terminal device according to  claim 7 , wherein the display controller restores the reduced image to an original state, when the input to the receiving part is stopped while the moving speed of the position of the input is slower than the predetermined speed. 
     
     
         9 . The mobile terminal device according to  claim 1 , wherein the display controller controls the display part such that the image group is disposed in a three-dimensional space and such that the image group seems to move along a cylindrical curved surface, which is curved about an axis perpendicular to a moving direction of the image group, when the image group is caused to transition. 
     
     
         10 . The mobile terminal device according to  claim 1 , wherein the image includes an icon. 
     
     
         11 . The mobile terminal device according to  claim 1 , wherein the image includes a thumbnail of an electronic document. 
     
     
         12 . A method for controlling display of a mobile terminal device, the mobile terminal device including a display part and a receiving part that receives an operation to cause an image group displayed in the display part to transition,
 the method comprising a transition step of causing the image group displayed in the display part to transition based on the operation, wherein   the transition step includes a step of reducing an image constituting the image group and increasing the number of images displayed in the display part when the image group is caused to transition.