Patent ID: 7046226

Claim:
A semiconductor integrated circuit that can be used in a first operating mode to simultaneously supply display data to a plurality of electrodes arranged in a first direction on an image display apparatus that displays a two-dimensional image, and in a second operating mode to successively supply scanning data in a positive or negative scanning direction to a plurality of electrodes arranged in a second direction that is orthogonal with the first direction, the semiconductor integrated circuit comprising: a plurality of data holding devices that each either hold data inputted via a first terminal and output the data to a second terminal, or hold data inputted via the second terminal and output the data to the first terminal, in response to an operating mode and a scanning direction; a switching device that switches connections of the plurality of data holding devices so that display data is simultaneously supplied to each of the plurality of data holding devices in the first operating mode and scanning data that has been supplied to at least one of the plurality of data holding devices is shifted by the plurality of data holding devices in the second mode; and a plurality of selecting devices to select one of data outputted from the first terminals of the plurality of data holding devices and data outputted from the second terminals of the plurality of data holding devices in response to the operating mode and the scanning direction.