Patent ID: 8089810

Claim:
A semiconductor integrated circuit device for generating and outputting a drive signal applied to a scan line of a display panel to be driven and a drive signal applied to a signal line of the display panel, the semiconductor integrated circuit device comprising: a nonvolatile memory, wherein the nonvolatile memory has an element formed by a semiconductor manufacturing process of forming an element of another circuit on a same semiconductor chip as the semiconductor integrated circuit device, wherein the nonvolatile memory comprises an electrically erasable programmable area to store setting information adapted to characteristics of the display panel driven by the semiconductor integrated circuit device, wherein the nonvolatile memory is comprised of multiple memory cells, each of said memory cells being isolated by an isolation area, wherein the each of said memory cells includes: a first field effect transistor for writing data in a first well formed in a main surface of a semiconductor substrate; a second field effect transistor for reading data in the first well formed in the main surface of the semiconductor substrate; and a third field effect transistor that functions as a capacitive element in a second well formed in the main surface of the semiconductor substrate and arranged to be isolated from the first well, wherein floating gates of the first field effect transistor, the second field effect transistor, and third field effect transistor are coupled together, and wherein a writing operation is performed when a common positive voltage is applied to a source and a drain of the third field effect transistor.