Patent ID: 7864167

Claim:
A display device for displaying image information corresponding to display signals derived from digital signals, the display device comprising: a display panel comprising a plurality of signal lines and a plurality of scanning lines which intersect perpendicularly with each other and a plurality of display pixels with optical elements arranged near intersecting points of the plurality of signal lines and the plurality of scanning lines; a scanning driver circuit for sequentially applying a line at a time a scanning signal to each of the plurality of scanning lines for setting the plurality of display pixels in a selective state a line at a time; and a signal driver circuit comprising a plurality of current generation circuits, wherein each of the current generation circuits comprises: a gradation current generation circuit which generates a plurality of gradation currents corresponding to each bit of the display signals based on a predetermined constant reference current; a drive current generation circuit which generates a drive current that is selected based on the plurality of gradation currents corresponding to each bit of the display signals, and that is supplied to a corresponding signal line; and a specified state setting circuit which supplies a specified voltage to the corresponding signal line to drive the corresponding optical element in a specified operating state instead of supplying the drive current, when the display signals have a specified value that sets all of the plurality of gradation currents in a non-selection state.