Patent ID: 7714853

Claim:
A display device for receiving an input image and at least one input parameter from a host to provide an output image, comprising: a clock control module for receiving the input parameter and producing an input clock and an output clock accordingly, wherein the clock control module comprises: a control logic configured to receive the at least one input parameter and produce a setting parameter; and a clock-generating unit configured to produce the input clock based on the setting parameter, and wherein the clock-generating unit generates the output clock based on the setting parameter and the input clock; a scaling unit coupled to the clock control module for receiving the input image according to the input clock, scaling the input image to produce the output image, and outputting the output image according to the output clock; and a digital display module coupled to the clock control module and the scaling unit to receive the output image and the output clock to display the output image; wherein the at least one input parameter comprises at least one of a resolution of the input image, a frequency of a horizontal synchronous signal, a frequency of a vertical synchronous signal, a polarity of the horizontal synchronous signal, a polarity of the vertical synchronous signal, a horizontal start position for displaying the output image, a vertical start position for displaying the output image, a number of pulses of a proposed input clock between two pulses of the horizontal synchronous signal, and a number of pulses of the horizontal synchronous signal between two vertical synchronous signal.