Patent ID: 7489323
Filing Date: 2009-02-10
Classification: G06F,G09F,G09G

Abstract:
1. A method for adjusting an image shown on a display apparatus adapted for a display wall, the display wall comprising a plurality of display apparatuses, each of the display apparatuses having a scaler and a digital display element, the method comprising the steps of: the display apparatuses receiving a video signal; setting an initial image capture area in the scaler for selecting and scaling a part of an image frame of the video signal and transmitting the part to the digital display element for display; and choosing one display apparatus of the display wall to adjust the image until all of the display apparatuses are adjusted to present a scaled image of the video signal on the display wall, wherein: a. when the initial image capture area is adjusted, one side of the initial image capture area is fixed and a size of the initial image capture area is adjusted to form a size of the adjusted image capture area by adjusting another side of the initial image capture area; b. updating a scaling factor of the scaler according to the size of the adjusted image capture area so that each pixel of the adjusted image capture area is scaled equally horizontally, and each line of the adjusted image capture area is scaled equally vertically, such that the image of the adjusted image capture area fits an output display area of the digital display element of the display apparatus; wherein a horizontal unit for adjusting the initial image capture area is a pixel of the image frame and a vertical unit for adjusting the initial image capture area is a line of the image frame.