Patent ID: 8531489

Claim:
A display apparatus for displaying an image in accordance with an input display data, comprising: a display having a plurality of display elements, said elements being arranged in a matrix; a data line drive circuit for providing a data voltage in accordance with said input display data to said display elements via data lines; and a scan line drive circuit for providing a scan voltage to said display elements via scan lines in order to determine a line of said display elements to be driven; wherein: said data line drive circuit has a sweep voltage generation circuit and a switching circuit, said sweep voltage generation circuit generating a sweep voltage and a sweep voltage select signal, said switching circuit selecting a one-line display data of said data voltage or said sweep voltage and outputting a selected one as a data line drive signal, and provides every scan line said data line drive signal to said display elements via said data lines; during one blanking period in which said data voltage is not provided to said display elements, said switching circuit selects said sweep voltage in accordance with said sweep voltage select signal; and said sweep voltage has a stepped waveform and varies based on an up and down count of a reference clock irrelevantly to said input display data and controls an on-time of each of said display elements along with said input display data, during said one blanking period.