DISPLAY SYSTEM AND DATA TRANSMISSION METHOD THEREOF

摘要

A display system and a data transmission method thereof are provided. When a first frame stored in a frame buffer is identical to a second frame to be output from an audio and video (AV) source, the AV source is set an AV control signal corresponding to a self-refresh mode, and a timing controller reads the first frame to output a display data controlled by the AV control signal. When the first frame is differed from the second frame, the AV source is set the AV control signal corresponding to a data update mode and a AV data signal corresponding to the second frame, and the timing controller stores the second frame in the frame buffer controlled by the AV control signal and outputs the display data corresponding to the first frame or the second frame according the timing sequences of the AV data signal and the display data.

主权项

1. A display system, comprising:
an audio and video (AV) source, providing an AV control signal and an AV data signal; a display device, comprising:
a frame buffer;a timing controller, coupled to the AV source and the frame buffer to receive the AV control signal and the AV data signal and output display data;a display panel; anda driver circuit, coupled to the timing controller and the display panel to drive the display panel according to the display data, wherein when a first frame stored in the frame buffer is identical to a second frame to be output from the AV source, the AV source sets the AV control signal corresponding to a self-refresh mode, and the timing controller is controlled by the AV control signal to read the first frame stored in the frame buffer to output the display data, when the first frame stored in the frame buffer is different from the second frame to be output from the AV source, the AV source sets AV control signal corresponding to a data update mode and sets the AV data signal according to the second frame, and the timing controller is controlled by the AV control signal to store the second frame in the frame buffer and determine to output the display data corresponding to either the first frame or the second frame according to a timing sequence of the AV data signal and a timing sequence of the display data.