| 摘要 |
A display driver comprising: a high-speed serial interface circuit which receives a packet from a host device through a high-speed serial bus using differential signals, and outputs a command or data included in the received packet; a driver circuit which drives a main display panel based on the output command or data; and a low-speed serial interface circuit which outputs a command or data to a sub display driver through a low-speed serial bus when the packet received from the host device includes the sub display driver command or data. And the display driver inserts dummy data to the packet to adjust the difference of the transfer rate by inserting a dummy the dummy data. And the display driver adjust the difference of the transfer rate.
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