| 摘要 |
PROBLEM TO BE SOLVED: To provide a display driver and electronic equipment enabling efficient control of a sub-display driver for driving a sub-display panel. SOLUTION: The display driver 10 includes a high-speed serial interface circuit 20, in which a packet is received from a host device via a high speed serial bus by using a differential signal, and a command or data contained in the received packet is outputted; a driver circuit 70 for driving a main display panel, on the basis of the outputted command or data; and a low-speed serial interface circuit 90 for outputting the command or data to the sub-display driver via a low-speed serial bus when the packet received from the host device includes the command or data for the sub-display driver. The difference in transfer speeds is adjusted by inserting a dummy data into the packet. COPYRIGHT: (C)2007,JPO&INPIT
|
