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| Title | Driving scheme for stable operation of 2-TFT a-Si AMOLED pixel |
| Publication Type | Journal Article |
| Year of Publication | 2005 |
| Authors | Chaji, G. R., P. Servati, and A. Nathan |
| Journal | Electronics Letters |
| Volume | 41 |
| Pagination | 499 - 500 |
| Date Published | apr. |
| ISSN | 0013-5194 |
| Keywords | 2-TFT a-Si AMOLED pixel circuit, active matrix organic light emitting diode displays, amorphous semiconductors, amorphous silicon thin film transistor backplane, driver circuits, driving scheme, elemental semiconductors, LED displays, mechanical stress tolerance, organic light emitting diodes, Si, silicon, spatial mismatch tolerance, stable operation, temperature variation tolerance, thin film transistors, threshold voltage shift, voltage-programmed pixel |
| Abstract | The amorphous silicon (a-Si) thin film transistor (TFT) backplane is becoming the technology of choice for active matrix organic light emitting diode (AMOLED) displays in view of its industrial accessibility and low fabrication cost over large area. However, the a-Si TFT suffers from threshold voltage (VT) shift. Presented is the simplest voltage-programmed pixel with an ability to compensate for the VT-shift in the drive TFT of the AMOLED pixel circuit. Simulation results also show that the pixel circuit can tolerate the spatial mismatch, temperature variation, and mechanical stress. |
| URL | http://dx.doi.org/10.1049/el:20058209 |
| DOI | 10.1049/el:20058209 |