Generally, a display apparatus may display a corresponding image according to a frames provided by an audio and video (AV) source. However, under the circumstance of displaying static images, the display apparatus may still receive the frames transmitted from the audio and video source continuously, and display the same image. In order to reduce the power consumption when the display apparatus receives the frames to display the static images, a frame buffer for storing an entire frame may be disposed in the display apparatus. Thus, under the circumstance of displaying dynamic images, the display apparatus may display a corresponding image according to a frame provided by the audio and video source, and under the circumstance of displaying static images, the display apparatus may store the static frame in the frame buffer, and the display apparatus displays according to the static frame stored in the frame buffer.
Nevertheless, when the audio and video source provides the dynamic frame again, it is possible that the operation timing of the display apparatus may not synchronize with the operation timing of the frame provided by the audio and video source, and therefore, the image displayed by a display panel may be affected when the display apparatus directly provides the dynamic frame to a driving circuit of the display panel. Thus, providing new dynamic frames to the driving circuit of the display panel without affecting the operation of the display panel has become one of the design concerns for this type of display apparatus.