Design of an Amorphous In-Ga-Zn-O TFT Current-Scaling Pixel Driving Circuit for AMOLED with Threshold-voltage Shift Compensating

摘要：

　　An Amorphous In-Ga-Zn-O TFT (a-IGZO TFTs) Current-Scaling Pixel Circuit for Active Matrix Organic Light-emitting Displays (AMOLEDs) is presented,it composes of four amorphous a-IGZO TFTs and one capacitor (4T-1C),which effectively compensates the threshold-voltage-shift (△Vth≈1V) of the drive TFT as well as degradation of the OLED.In a monochromatic 2-inches QVGA AMOLED display,simulating results show that programming current between several pA and hundreds of nA can realize OLED luminance from 1cd/m2 to 200cd/m2,and the aperture ratio of AMOLED with this pixcl driving circuit is high as 80%.

关键词： AMOLED a-IGZO-TFT threshold-voltage-shift pixel circuit

作者: Chuncheng Yang Xin Chen Jian Zhang Chuannan Li

作者单位: State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,2699 Qianjin Street,Changchun 130012,China

会议类型: 国际会议

会议名称: 2013 2nd International Conference on Computer Science and Electronics Engineering(ICCSEE2013)(2013年第二届计算机科学与电子工程国际会议)

会议地点: 杭州

会议语种:英文

页码: 1786-1789

在线出版日期: 2013-03-22（万方平台首次上网日期，不代表论文的发表时间）