Wednesday, May 2025

04:30 PM - 04:50 PM

Room: LL20A

Session: Micro Display Circuits and Driving

4,105ppi LEDoS Pixel Circuit with an Analog Pulse-Width-Modulation Driving Method Employing a Dual-Sweep Signal for Wider Data Range

Student

• Student

  Chanjin Park , PhD candidate

  Seoul National University

Description:

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.