OPTICAL DISPLAY DRIVING METHOD

摘要

A display device comprising a plurality of pixels ( 26 ), a light source ( 23 ), and addressing means ( 24, 25 ) for coupling a selected pixel to said light source to thereby emit light, wherein the addressing means ( 24, 25 ) are arranged to address each pixel using pulse-width modulation (PWM). Further, the display comprises means ( 20 ) for amplitude modulating the intensity of said light source ( 23 ). The combination of the two modulations generates an exponentially distributed emitted light intensity, enabling proper gray scale rendering for a limited resolution in the time domain.