Patent ID: 8358315

Claim:
A frame mirroring method, suitable for a display device comprising a first storage unit and a second storage unit, the frame mirroring method comprising: reading pixel values of two pixels in a pixel row of a frame from the first storage unit, and writing the read pixel values into the second storage unit, wherein the second storage unit are two registers, one of the two pixels is located at i th position of the pixel row, the other one of the two pixels is located at (w+1−i) th position of the pixel row, and w are positive integers and w is a width of the pixel row; reading the pixel values of the two pixels in the pixel row from the second storage unit and writing the read pixel values back to the first storage unit, wherein when performing one of foregoing reading and writing steps, the pixel values of the two pixels in the pixel row are read or written in a reverse direction, so as to swap the two pixels; and repeating foregoing steps to swap all pixels in the frame, so as to mirror the frame.