The present invention provides a point-to-point data bus architecture and a protocol
for a graphics system. The TCON transmits the data to the column drivers using
separate point-to-point data buses. Data may be transmitted to the column drivers
during a horizontal blanking period resulting in more data being written to the
column drivers as compared to a typical graphical display system. As each point-to-point
data bus contains only the data for its corresponding column driver the instantaneous
data rate to any column driver is lower than in conventional multi-drop architectures.
The point-to-point system has fewer printed circuit board (PCB) lines and a lower
loop area than a conventional multi-drop system. A protocol may also be implemented.
The protocol may provide for system level control and coordination of column drivers
and other display system components. This protocol allows the TCON to control the
operation of the column drivers without the need for extra PCB lines.