Patent ID: 8259040

Claim:
An organic light emitting display, comprising: a frame memory configured to store data according to a write clock and to read the stored data according to a read clock; a signal generation unit configured to supply the read clock to the frame memory; a data driver configured to convert the data read from the frame memory into a data signal and to supply the converted data signal to data lines; a scan driver configured to supply a scan signal to scan lines; and a plurality of pixels arranged near crossing points of the scan lines and the data lines, wherein the read clock has a higher frequency than the write clock, and wherein the frame memory is configured to read at least some of the stored data more than once, wherein the scan driver and the data driver are cooperatively configured to display a blank subframe for each scan line, and wherein the light emission time of the blank subframe is substantially equal to: (frame time)−( LSB time)×(2 n −1), wherein (frame time) is equal to the total time of a frame, (LSB time) is equal to the light emission time of an LSB, and n equals the number of bits for each scan line.