Patent ID: 7012597

Claim:
An electro-optical device comprising: a pixel matrix in which pixels each including a luminescent element are arrayed in the form a matrix; a plurality of scan lines each connected to a pixel group arrayed in a row direction of the pixel matrix; a plurality of data lines each connected to a pixel group arrayed in a column direction of the pixel matrix; a scan line drive circuit, connected to the plurality of scan lines, for selecting one row in the pixel matrix; and a data line drive circuit for generating a data signal having a current value corresponding to a level of light to be emitted by the luminescent element, and outputting the data signal to at least one of the plurality of data lines; wherein the data line drive circuit comprises: a current-addition type current generation circuit having a structure where N series connections of a first drive transistor for generating a prescribed current and a first switching transistor whose on/off switching is controlled in response to a control signal supplied by an external circuit are connected mutually in parallel, where N is an integer of 2 or greater; and a control-electrode signal generation circuit for generating a control-electrode signal having a prescribed signal level and supplying the control-electrode signal commonly to control electrodes of N number of first drive transistors.