43‐4: 4105‐PPI LEDoS Pixel Circuit With an Analog Pulse‐Width‐Modulation Driving Method Employing a Dual‐Sweep Signal for Wider Data Range

In this paper, a 4015‐pixel per inch light emitting diode on silicon pixel circuit and its driving method for a wider data range are proposed. The proposed method adopts a SWEEP[n] signal that ramps up two different voltage ranges to address the narrow data range of complementary metal‐oxide‐silicon pixel circuits. By employing the method, the data range is extended by 107.7% compared to the conventional method using a single‐sweep SWEEP[n] signal. As the proposed method does not require a complex pixel structure, it can be implemented with a simple structure.