| 摘要 |
A video display system is used to display an image signal on a display unit and a method for power conservation thereof is proposed. The video display system has a CRT controller (CRTC), an image signal generator and a power controller. The CRT controller (CRTC) generates a synchronous timing signal for the display unit and a first mask signal. The image signal generator converts the image signal into a video signal with reference to the synchronous timing signal. The power controller turns off or slows down the image signal generator during an enabling time of the first mask signal, which is either a horizontal blank time or a vertical blank time.
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