Patent ID: 7085593

Claim:
A mobile telephone, comprising: a display screen; a semiconductor chip, coupled to the display screen, for adjusting the contrast between, and/or the color of, the foreground and background of said display screen, said semiconductor chip including: a receiver for receiving one or more of a first, a second and/or a third signal indicating that the current mode of contrast and/or color is to be adjusted, wherein said current mode of contrast and/or color is the mode of contrast and/or color which is being displayed on said display screen; and control means, coupled to said receiver for adjusting the current mode of contrast and/or color; and a first sensor, coupled to said semiconductor chip, for detecting that said mobile telephone is docked with a terminal device and for generating a first signal; wherein said control means adjusts the current mode of contrast and/or color to an associated pre-defined mode of contrast and/or color to optimize the visibility of said display screen when said terminal device is detected.