Display apparatus adapted for a display wall, image adjustment method therefor and display wall therewith

Abstract

A display apparatus adapted for a display wall, an image adjustment method therefor and a display wall therewith are provided. The image between display apparatuses of the display wall is not exactly displayed, especially for adjacent areas between every two neighbored display apparatuses, and the displayed image is required to be adjusted for the defects. The image adjustment method includes receiving a video signal and then setting an initial image capture area in a scaler of each of display apparatuses in the display wall for selecting and scaling a part of the video image and transmitting the part to a digital display element of the display apparatus for display. Then based on the whole image displayed on the display wall by combining the image displayed on each of the display apparatuses, sequentially adjusts the image displayed by each of the display apparatuses. While adjusting the size of the image, one side of an image capture area is fixed and the length of the image capture area is adjusted. A scaling factor is simultaneously updated according to the adjusted length of the image capture area. The precision degree for the adjusted images can be a pixel in a horizontal direction and a line in a vertical direction for the displayed images and a complete and more perfect image can be obtained by the adjustment method.