Display apparatus, control method, and semiconductor apparatus

A control method performed by a plurality of semiconductor apparatuses, each of which is coupled to a part of a plurality of pixels, the part being different for each semiconductor apparatus, the control method comprising:

• outputting and receiving, to and from other semiconductor apparatuses, a drive communication signal including a drive start communication signal indicating reception of a drive start signal to start driving the pixels;
• determining whether all the semiconductor apparatuses have received the drive start signal in accordance with the drive start communication signal;
• and
• starting output of the drive signal.

A semiconductor apparatus comprising:

• a drive signal output circuit configured to output a drive signal;
• an output controller configured to control the drive signal output circuit;
• and
• an external input interface configured to receive a drive start signal, wherein
• the output controller is configured to output and receive, to and from other semiconductor apparatuses, a drive communication signal including a drive start communication signal indicating reception of the drive start signal, and
• the output controller is configured to cause the drive signal output circuit to output the drive signal when receiving the drive start communication signal and the drive start signal.