| 摘要 |
A display controlling device includes a first line buffer, a second line buffer, a buffer controller, a mixer, a de-interlacing device, a de-interlacing controller, a scaling device, a scaling controller, and a window display controller. The window display controller controls the operations of the mixer, the de-interlacing controller, and the scaling controller according to a first coordinate parameter and a second coordinate parameter, wherein a first video frame and a second video frame are displayed on a display device. The window display controller controls the de-interlacing device and the scaling device to selectively operate in either a first clock or a second clock.
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