[AMD8] Advanced Driving Technology for High-quality Display

[AMD8-3] New 3.5T2C Pixel Circuit with Symmetrical Structure for 3D AMOLED Displays

*Chieh-An Lin¹, Li-Jung Chen¹, Chia-Ling Tsai¹, Chih-Lung Lin¹ (1. National Cheng Kung University (Taiwan))

Keywords: Active-matrix organic light-emitting diode, low-temperature poly silicon thin-film transistor, pixel circuit

This paper proposes the 3.5T2C pixel circuit compensating for threshold voltage (V_TH) variation of LTPS-TFTs and preventing image flicker. Simulation results show that the relative current error rates under V_TH variations are all below 4.37 %. Furthermore, OLEDs are turned off during the programming period, thereby achieving flicker-free images.