Patent ID: 7358939

Claim:
A driver for driving an organic light-emitting diode (OLED) display panel including a plurality of organic light-emitting diodes (OLEDs) arranged in rows and columns, the driver configured to select one of the rows and to provide current driving the OLEDs coupled between the columns and said selected one of the rows in accordance with display data corresponding to said selected one of the rows, the driver comprising: a plurality of current sources providing the current driving the OLEDs coupled between the columns and said selected one of the rows; and a scan period controller coupled to the current sources, the scan period controller including an adder coupled to the display data corresponding to said selected one of the rows and adding the display data to generate a sum of the display data, the scan period controller adjusting a display scan period of the current provided from the current sources to the OLEDs on said selected row based upon the sum of the display data corresponding to said selected one of the rows, and the scan period controller controlling the current sources to provide the current driving the OLEDs between the columns and said selected one of the rows during the adjusted scan period.