DISPLAY SYSTEM, A METHOD OF DISPLAYING AN IMAGE ON A SCREEN AND AN ASSOCIATED COMPUTER PROGRAM PRODUCT

摘要

A display system and a method of displaying an image are hereby presented. The display system is arranged to display an image on a screen which has at least one useful screen area which is intended to be seen by a user and at least one non-useful screen area which the user cannot see. The display device comprises a bandwidth saver unit arranged to determine a location on the screen of a current pixel to be displayed. If the pixel is located in a non-useful screen area of the screen, then the fetching from a data memory of a pixel value is inhibited by the bandwidth saver unit with respect to this pixel, and a replacement, fixed pixel value is passed to a data processing unit for further processing.

主权项

1. A display system arranged to display an image on a screen having useful screen areas intended to be seen by a user and non-useful screen areas not visible by the user, comprising:
a data memory arranged for storing pixels values of the image to be displayed; a data processing unit arranged for controlling the display of pixels on the screen; a memory access control unit arranged to determine whether at least one pixel to be processed by the data processing unit for display on the screen belongs to a useful screen area or to a non-useful screen area of the screen and, if the pixel belongs to a non-useful screen area, to inhibit the fetching of a pixel value associated with said pixel from the data memory to the data processing unit and to force said pixel with a fixed value for the purpose of the processing by the data processing unit.