Abstract: An electronic device has a display, a video memory, a video data buffer unit, a central processing unit, and a video processing unit. The central processing unit, according to a number of divided screens and a resolution for each of the divided screens, retrieves different but continuous video data corresponding to the resolution of each of the divided screens from the video data buffer unit, and stores the retrieved continuous video data in consecutive memory addresses in the video memory. The video processing unit reads in sequence the continuous video data stored in the video memory, and sends the continuous video data in sequence to the display according to a direction of arrangement of the divided screens such that video contents displayed on the divided screens by the display are continuous.

Abstract: An electronic device has a display, a video memory, a video data buffer unit, a central processing unit, and a video processing unit. The central processing unit, according to a number of divided screens and a resolution for each of the divided screens, retrieves different but continuous video data corresponding to the resolution of each of the divided screens from the video data buffer unit, and stores the retrieved continuous video data in consecutive memory addresses in the video memory. The video processing unit reads in sequence the continuous video data stored in the video memory, and sends the continuous video data in sequence to the display according to a direction of arrangement of the divided screens such that video contents displayed on the divided screens by the display are continuous.

Abstract: A method for partially zooming a screen of a display includes: defining a portion of the screen of the display as a zoom area and the rest of the screen as a normal area; retrieving video data to be displayed in the normal area of the screen, storing the video data in a normal data memory block of a video memory that corresponds to the normal area, further retrieving video data to be displayed in the zoom area of the screen, performing zoom processing of the retrieved video data, and storing the zoom-processed video data in a zoom data memory block of the video memory that corresponds to the zoom area; and subsequently reading the video data stored in the normal data memory block and the zoom data memory block of the video memory, and sending the video data thus read to the display for displaying.