Patent ID: 7333096

Claim:
An active matrix display device, comprising a control signal generating circuit for controlling writing of data into pixels of a display section, by driving a data signal line drive circuit and a scanning signal line drive circuit, wherein: the writing of the data into the pixels can be controlled by not less than two refresh rates; the display section is divided into a plurality of areas; the data is written into the pixels in the plurality of areas at said not less than two refresh rates; the scanning signal line drive circuit includes m-stages of shift registers and m first logic circuits, each of said m first logic circuits receives a pulse from a corresponding stage of said m-stages of shift registers and a pulse width control signal for permitting or prohibiting an output of the pulse, and the control signal generating circuit controls a pulse width of the pulse width control signal; and the scanning signal line drive circuit further includes m second logic circuits provided between said m-stages of shift registers and said m first logic circuits, and each of said m second logic circuits generates the pulse supplied from a corresponding stage of said m-stages of shift registers, by means of an input pulse and an output pulse supplied from the corresponding stage of said m-stages of shift registers.