Hybrid Driving Scheme of a-Si TFT pixel circuit for AMOLEDs
In this paper, we present a hybrid driving scheme of a-Si pixel circuit for active-matrix organic lightemitting diode (AMOLED) displays. In this driving scheme, the data line is pre-charged to a specific voltage before current programming. By investigating the effect of the pre-charging voltage (Vref) on the settling time, we demonstrate that for a given rang of programming current, there is an optimal value of Vref that minimizes the overall settling time. Simulation results, based on a-Si TFT and OLED experimental data, show that the settling time can be shortened to an acceptable range. This work provides the designer with a means to realize the a-Si TFT based 3.2-inch QVGA (320×240) AMOLEDs.
Active-matrix organic light-emitting diode (AMOLED) amorphous silicon (a-Si) current programmed pixel circuit (CPPC) pre-charging voltage
Xiaoming Liu Congwei Liao Tao Chen David Dai Smart Chung T. S. Jen Shengdong Zhang
Shenzhen Graduate School, Peking University, Shenzhen 518055, P. R. China institute of Jiangsu (IVO) FPD Technology & Research, Info Vision Optoelectronics (Kunshan) Co, Ltd,
国际会议
China Display/Asia Display 2011(2011年中国显示/亚洲显示会议)
江苏昆山
英文
208-211
2011-11-07（万方平台首次上网日期，不代表论文的发表时间）