A hinge assembly and a refrigerator using the assembly are disclosed. The control system includes an illumination source for producing a light beam and a plurality of optical fibers. The timing controller temporally divides one frame period and drives a display panel such that a display mode for displaying an image in the display panel and a touch mode for sensing a user’s touch are alternately driven. An octane scaler adaptation module computes an octane scaler based on the current engine operating zone and the knock detection signal wherein engine spark is controlled based on the octane scaler. In addition, the controller may implement QoS for data and transmit QoS parameters to power line modems to allow the power line modems to perform QoS. The at least one locally delimited dopant region extends from or over a pn junction between the source region and the body region of the transistor or between the drain region and the body region of the transistor into the body region as far as the gate electrode, such that a gap between the pn junction and the gate electrode in the body region is bridged by the locally delimited dopant region.