Patent ID: 6720943
Filing Date: 2004-04-13
Classification: G09G,H04B

Abstract:
A data interface apparatus for a display device, comprising:a data input supplying data signals; a data driver responsive to a control signal and arranged to drive the display device; a clock modulator arranged to modulate a base clock and to provide a modulated clock having a frequency which is varied within a frequency band of about Â±x% of a base clock frequency where 1&lE;x&lE;50; and a data transmission unit arranged to receive the data signals from the data input in response to the base clock and to transmit the data signals to the data driver according to the modulated clock such that a data transmission speed of the data signals is varied to reduce EMI, wherein the modulated clock is commonly applied to the data transmission unit and the data driver, and the data driver simultaneously transfers the data signals to the display device in response to the modulated clock and the control signal.