Multi-display digital image processing apparatus using external display apparatus, method of operating the digital image processing apparatus, and computer readable recording medium having recorded thereon program for executing the method

Abstract

A digital image processing apparatus that supports multi-display to reproduce images on an external display apparatus connectable to the digital image processing apparatus, a method of operating the digital image processing apparatus, and a computer readable recording medium recorded thereon a program for executing the method. The digital image processing apparatus includes: a digital signal processor which, when a signal of a first display command is input to the digital image processing apparatus, displays a screen obtained by performing the first display command on the digital image processing apparatus, and when a signal of a second display command corresponding to the signal of the first display command is input to the digital image processing apparatus, displays a screen obtained by performing the second display command on the external display apparatus.

What is claimed is: 
     
         1 . A digital image processing apparatus that supports multi-display to reproduce images on an external display apparatus connectable to the multi-display digital image processing apparatus, the digital image processing apparatus comprising:
 an input element;   a display unit; and   a digital signal processor which,   when a signal of a first display command is input to the digital image processing apparatus with the input element, displays a screen on the display unit obtained by performing the first display command on the digital image processing apparatus, and   when a signal of a second display command corresponding to the signal of the first display command is input to the digital image processing apparatus, displays a screen obtained by performing the second display command on the on the external display apparatus,   wherein the first display command displays an image selected from among images stored in the digital image processing apparatus in a full screen on the display unit, and the second display command displays on the external display apparatus an enlarged or reduced image of a partial area selected from the full screen displayed on the display unit.   
     
     
         2 . The digital image processing apparatus of  claim 1 , wherein an on-screen display (OSD) image, which displays a window on the selected partial area on the full screen, is further displayed. 
     
     
         3 . The digital image processing apparatus of  claim 2 , wherein the on-screen display (OSD) image is moved in the full screen according to user input. 
     
     
         4 . The digital image processing apparatus of  claim 3 , wherein the selected partial area on the full screen is changed along with the movement of the on-screen display (OSD) image in the full screen. 
     
     
         5 . The digital image processing apparatus of  claim 1  wherein the digital signal processor includes a connection detector that outputs a trigger signal on detection of a connection between the digital image processing apparatus and the external display apparatus; and
 a display selector which selects the digital image processing apparatus as a selected display unit if no external display apparatus is signaled as connected, and the external display apparatus as the selected display if the external display apparatus is signaled as connected. 
 
     
     
         6 . The digital image processing apparatus of  claim 5 , wherein the connection detector continuously detects whether the digital image processing apparatus is connected to the external display apparatus. 
     
     
         7 . The digital image processing apparatus according to  claim 1 , further comprising:
 a plurality of vertical buttons in a column in a vertical direction adjacent the screen, and a plurality of horizontal buttons in a row in a horizontal direction, wherein the plurality of vertical and horizontal buttons are used for the first and second display commands.   
     
     
         8 . A method of operating a digital image processing apparatus that supports multi-display to reproduce images on an external display apparatus connectable to the digital image processing apparatus, the method comprising:
 inputting a signal of a first display command to the digital image processing apparatus;   inputting a signal of a second display command to the digital image processing apparatus;   selecting any one of the digital image processing apparatus and the external display apparatus to display screens obtained by performing the first and second display commands;   displaying, by the first display command, an image selected from among images stored in the digital image processing apparatus in a full screen on the digital image processing apparatus; and   displaying, by the second display command, an enlarged or reduced image of a partial area selected from the full screen on the external display apparatus.   
     
     
         9 . The method of  claim 8 , wherein the first display command further displays an on-screen display (OSD) image, which displays a window around the selected partial area on the full screen. 
     
     
         10 . The method of  claim 9 , wherein the on-screen display (OSD) image is moved in the full screen according to user input. 
     
     
         11 . The method of  claim 10 , wherein the selected partial area on the full screen is changed along with the movement of the the on-screen display (OSD) image in the full screen. 
     
     
         12 . A non-transitory computer program product, comprising a computer usable medium having a computer readable program code embodied therein, said computer readable program code adapted to be executed to implement the method according to  claim 8 . 
     
     
         13 . The method of  claim 8  including outputting a trigger signal on detection of a connection between the digital image processing apparatus and the external display apparatus; and
 selecting the digital image processing apparatus as a selected display if no external display apparatus is signaled as connected, and the external display apparatus as the selected display if the external display apparatus is signaled as connected. 
 
     
     
         14 . The method of  claim 13 , including continuously detecting whether the digital image processing apparatus and the external display apparatus are connected.