Novel analog feedback current programming architecture compatible with 2-transistor 1-capacitor pixel for active matrix organic light-emitting diode displays

被引:4
作者
Charisoulis, Thomas [1 ]
Troccoli, Matias N. [2 ]
Frey, Douglas R. [2 ,4 ]
Hatalis, Miltiadis K. [3 ]
机构
[1] Lehigh Univ, Display Res Lab, Bethlehem, PA 18015 USA
[2] Lehigh Univ, Bethlehem, PA 18015 USA
[3] Lehigh Univ, Dept Elect & Comp Engn, Bethlehem, PA 18015 USA
[4] Lehigh Univ, ECE Dept, Bethlehem, PA 18015 USA
关键词
2T1C pixel; current feedback; AMOLED; threshold voltage compensation circuit; mobility compensation circuit; CIRCUIT; COMPENSATION;
D O I
10.1002/jsid.240
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new feedback current programming architecture is described, which is compatible with active matrix organic light-emitting diode (AMOLED) displays having the 2T1C pixel structure. The new pixel programming approach is compatible with all TFT technologies and can compensate for non-uniformities in both threshold voltage and carrier mobility of the pixel OLED drive TFT. Based on circuit simulations, a pixel drive current of less than 10nA can be programmed in less than 50 mu. This new approach can be implemented within an AMOLED external or integrated display data driver.
引用
收藏
页码:204 / 215
页数:12
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