| 摘要 |
A display apparatus that can conserve power without compromising general display quality is presented. In a display system including a main control apparatus and a display apparatus, the main control apparatus generates an image control signal having an image data, and a main clock signal that changes from a first frequency to a second frequency in response to a change in image mode from a first image mode to a second image mode. The change from the first frequency to the second frequency includes changing through at least one intermediate frequency stage between the first frequency and the second frequency. By maintaining the change of frequency shift small (i.e., less than a predetermined maximum change), operation in emergency mode is avoided even when the frequency shift is sudden. The display apparatus receives the image control signal and the main clock signal to display an image.
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