| 摘要 |
<p>A mobile telephone (1) including a display screen (3) and a semiconductor chip (5). The semiconductor chip (5) includes control means (7), a receiver (9) and a memory (11). The receiver (9) receives one or more first, second and/or third signals from first, second and third sensors (15,17) and (19) respectively. When the control means (7) receives a signal from the receiver (9) indicating that the current mode of contrast and/or colour is to be changed, the control means (7) selects an associated pre-defined mode of contrast and/or colour from the memory (11) in order to optimise the visibility of the display screen (3), subject to the amount of supply voltage available.</p> |
