Patent ID: 10121445

Abstract:
An active matrix LCD display of the multi-pixel drive (MPD) type, in which a pixel comprises a plurality of sub-pixels with each sub-pixel of a pixel being associated with a respective storage capacitor address lines so that the voltage applied across an individual sub-pixel depends on both the signal voltage and the voltage applied to the associated storage capacitor address line, is driven such that the relationship between at least a first one of the capacitor line voltages and a second one of the capacitor line in a first display refresh period of the frame is different to the relationship between the first of the capacitor line voltages and the second of the capacitor line voltages in a second display refresh period of the frame. This allows the root-mean-square (RMS) voltage applied over the frame across a first of the sub-pixels to be controlled at least partially independently of the RMS voltage applied over the frame across a second of the sub-pixels, thereby providing increased resolution.