A Novel LTPS-TFT Pixel Circuit Compensating for TFT Threshold-Voltage Shift and OLED Degradation for AMOLED

@article{Lin2007ANL,
  title={A Novel LTPS-TFT Pixel Circuit Compensating for TFT Threshold-Voltage Shift and OLED Degradation for AMOLED},
  author={Chih Lung Lin and Yung-chih Chen},
  journal={IEEE Electron Device Letters},
  year={2007},
  volume={28},
  pages={129-131}
}
  • C. Lin, Y. Chen
  • Published 2007
  • Materials Science
  • IEEE Electron Device Letters
This letter presents a novel pixel circuit that uses low-temperature polycrystalline-silicon thin-film transistors (LTPS-TFTs) composed of one driving and four switching TFTs for active-matrix organic light-emitting diodes (AMOLEDs) with a voltage-source method. The proposed circuit effectively enables threshold-voltage-shift correction of the drive TFT and compensates for degradation of the OLED using a feedback structure 

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References

SHOWING 1-10 OF 15 REFERENCES
A new a-Si:H TFT pixel circuit compensating the threshold voltage shift of a-Si:H TFT and OLED for active matrix OLED
We propose a new hydrogenated amorphous silicon thin-film transistor (a-Si:H TFT) pixel circuit for an active matrix organic light-emitting diode (AMOLED) employing a voltage programming. TheExpand
A new pixel circuit for driving organic light-emitting diode with low temperature polycrystalline si
TLDR
A new pixel circuit design for active matrix organic light-emitting diode (AMOLED), based on the low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs) is proposed and verified by SPICE simulation, showing high immunity to the variation of poly-Si TFT characteristics. Expand
A new a-Si:H thin-film transistor pixel circuit for active-matrix organic light-emitting diodes
We propose a new pixel circuit using hydrogenated amorphous silicon (a-Si:H) thin-film transistors (TFTs), composed of three switching and one driving TFT, for active-matrix organic light-emittingExpand
A new current scaling pixel circuit for AMOLED
A new active-matrix organic light-emitting diode (AMOLED) pixel design, composed of four polycrystalline silicon thin-film transistor (poly-Si TFT) and one capacitor, is proposed by employing a novelExpand
38.1: Optical Feedback for AMOLED Display Compensation using LTPS and a‐Si:H Technologies
New optical feedback pixel circuits for a-Si:H and LTPS technologies will be presented. The circuits will enable correction of threshold voltage drift of the drive TFT and degradation of the OLED. InExpand
Low-temperature polysilicon thin-film transistor driving with integrated driver for high-resolution light emitting polymer display
A high-resolution low-temperature polysilicon thin-film transistor driven light emitting polymer display (LT p-Si TFT LEPD) with integrated drivers has been developed. We adopted conductance controlExpand
The impact of the transient response of organic light emitting diodes on the design of active matrix OLED displays
  • R. Dawson, Z. Shen, +19 authors J. Sturm
  • Materials Science
  • International Electron Devices Meeting 1998. Technical Digest (Cat. No.98CH36217)
  • 1998
Much of the organic light emitting diode (OLED) characterization published to date addresses the high current regime encountered in the operation of passively addressed displays. Higher efficiencyExpand
Improvement of brightness uniformity by AC driving scheme for AMOLED display
We propose an AC voltage driving scheme which can improve the brightness uniformity of active-matrix organic light-emitting diode (AMOLED) displays. Through the use of a charge feed-through mechanismExpand
36.1: 6‐Bit Digital VGA OLED
We developed 0.7 inch VGA TFT-OLED with a 64 gray-scale integrated driver circuit. The TFT-OLED has good image uniformity due to digital operation. Control in a time-ratio was useful for achievingExpand
Optical feedback in active matrix polymer OLED displays
Among the recent emerging flat display technologies organic LED (OLED) is one of the most interesting. Combining the OLED with an active matrix substrate, typically made with low temperatureExpand
...
1
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...