Affiliation:
1. R&D Center of OLED Division Chengdu BOE Optoelectronics Technology Co., Ltd. No.1188, Hezuo Road, Hi‐tech West Zone Chengdu China
Abstract
The phenomenon of brightness drop (B/D) during one frame period exist in OLED panel using LTPS process. We analyzed how TFT leakage current lead to B/D in conventional circuit, and we also found that hysteresis is another important reason for B/D. Meanwhile, lots of approaches to improving B/D are discussed.