Patent ID: 7385616
Filing Date: 2008-06-10
Classification: G09G

Abstract:
1. A method for automatically adjusting a picture frame on a display device, by which a display size and a display position of the picture frame are automatically adjusted according to a plurality of reference points and a plurality of associated slope values stored in a memory of the display device, comprising the steps of: (A) determining whether the automatic adjustment of the picture frame is required, executing step (B) if the result is positive and executing step (I) if the result is negative; (B) measuring a horizontal synchronous frequency, a horizontal image timing, a vertical synchronous frequency and a vertical image timing of the picture frame; (C) reading the reference points and the associated slope values; (D) determining whether the synchronous frequency and the image timing are correct, executing step (E) if the result is positive and executing step (I) if the result is negative; (E) adjusting a horizontal scale of the picture frame according to the horizontal synchronous frequency, the horizontal image timing, the reference points and the associated slope values; (F) adjusting a horizontal position of the picture frame according to the horizontal synchronous frequency, the horizontal image timing, the reference points and the associated slope values; (G) adjusting a vertical scale of the picture frame according to the vertical synchronous frequency, the vertical image timing, the reference points and the associated slope values; (H) adjusting a vertical position of the picture frame according to the vertical synchronous frequency, the vertical image timing, the reference points and the associated slope values; and (I) completing the automatic adjustment of the picture frame.