Patent Number: 7,085,593

Title: Semiconductor chip and a mobile telephone including said semiconductor chip

Abstract: 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 color is to be changed, the control means 7 selects an associated pre-defined mode of contrast and/or color from the memory 11 in order to optimize the visibility of the display screen 3, subject to the amount of supply voltage available.

Inventors: Anderton; John (Livingston, GB)

Assignee: Seiko Epson Corporation

International Classification: H04B 1/38 (20060101); H04M 1/00 (20060101)

Expiration Date: 8/01/02018