Abstract

This paper presents a new driving scheme utilizing an in-pixel metal-insulator-semiconductor (MIS) photosensor for luminance control of active-matrix organic light-emitting diode (AMOLED) pixel. The proposed 3-TFT circuit is controlled by an external driver performing the signal readout, processing, and programming operations according to a luminance adjusting algorithm. To maintain the fabrication simplicity, the embedded MIS photosensor shares the same layer stack with pixel TFTs. Performance characteristics of the MIS structure with a ${{nc}}{{--}}{{Si}}:{{H}}/a{{-}}{{Si}}:{{H}}$ bilayer absorber were measured and analyzed to prove the concept. The observed transient dark current is associated with charge trapping at the insulator–semiconductor interface that can be largely eliminated by adjusting the bias voltage during the refresh cycle. Other factors limiting the dynamic range and external quantum efficiency are also determined and verified using a small-signal model of the device. Experimental results demonstrate the feasibility of the MIS photosensor for the discussed driving scheme.

© 2013 IEEE

PDF Article

References

  • View by:
  • |
  • |

  1. G. Gu, S. R. Forest, "Design of flat-panel displays based on organic light-emitting devices," IEEE J. Sel. Top. Quantum Electron. 4, 83-99 (1998).
  2. Thin-Film Transistors (Marcel Dekker, 2003).
  3. M. Bagheri, S. J. Ashtiani, A. Nathan, "Fast voltage-programmed pixel architecture for AMOLED displays," J. Display Technol. 6, 191-195 (2010).
  4. G. Reza Chaji, A. Nathan, "Low-power low-cost voltage-programmed a-Si:H AMOLED display for portable devices," J. Display Technol. 4, 233-237 (2008).
  5. G. R. Chaji, S. Alexander, J. M. Dionne, Y. Azizi, C. Church, J. Hamer, J. Spindler, A. Nathan, "Stable RGBW AMOLED display with OLED degradation compensation using electrical feedback," IEEE Solid-State Circuits Conf. Dig. Tech. Papers (2010) pp. 118-119.
  6. H. Lifka, W. Oepts, N. Bramante, S. Deane, D. Fish, N. Young, A. Steer, D. George, A. Giraldo, "Optical feedback for AMOLED pixel circuits," ECS Trans. 3, 23-33 (2006).
  7. N. P. Papadopoulos, A. A. Hatzopoulos, D. K. Papakostas, "An improved optical feedback pixel driver circuit," IEEE Trans. Electron Devices 56, 229-235 (2009).
  8. M. H. Kang, J. H. Hur, Y. D. Nam, E. H. Lee, S. H. Kim, J. Jang, "An optical feedback compensation circuit with a-Si:H thin-film transistors for active matrix organic light emitting diodes," J. Non-Cryst. Solids 354, 2523-2528 (2008).
  9. D. Fish, N. Young, S. Deane, A. Steer, D. George, A. Giraldo, H. Lifka, O. Gielkens, W. Oepts, "Optical feedback for AMOLED display compensation using LTPS and a-Si:H technologies," SID Dig. 36, 1340-1343 (2005).
  10. H.-J. In, K.-H. Oh, O.-K. Kwon, C. H. Hyun, S.-C. Kim, "A luminance adjusting algorithm for high resolution and high image quality AMOLED displays of mobile phone applications," IEEE Trans. Consumer Electron. 56, 1191-1195 (2010).
  11. M. R. Esmaeili-Rad, A. Sazonov, A. Nathan, "Analysis of the off current in nanocrystalline silicon bottom-gate thin-film transistors," J. Appl. Phys. 103, 074502 (2008).
  12. M. R. Esmaeili-Rad, A. Sazonov, A. Nathan, "Absence of defect state creation in nanocrystalline silicon thin film transistors deduced from constant current stress measurements," Appl. Phys. Lett. 91, 113511 (2007).
  13. M. Fernandes, Y. Vygranenko, M. Vieira, G. Heiler, T. Tredwell, A. Nathan, "Transient current in a-Si:H-based MIS photosensors," Mater. Res. Soc. Symp. Proc. on Amorphous and Polycrystalline Thin-Film Silicon Science and Technol. (2008).
  14. M. Fernandes, Y. Vygranenko, A. Fantoni, R. Martins, M. Vieira, "Spectral response characterization of a-Si:H-based MIS-type photosensors," Phys. Stat. Solid. (c) 5, 3410-3413 (2008).

2010 (2)

M. Bagheri, S. J. Ashtiani, A. Nathan, "Fast voltage-programmed pixel architecture for AMOLED displays," J. Display Technol. 6, 191-195 (2010).

H.-J. In, K.-H. Oh, O.-K. Kwon, C. H. Hyun, S.-C. Kim, "A luminance adjusting algorithm for high resolution and high image quality AMOLED displays of mobile phone applications," IEEE Trans. Consumer Electron. 56, 1191-1195 (2010).

2009 (1)

N. P. Papadopoulos, A. A. Hatzopoulos, D. K. Papakostas, "An improved optical feedback pixel driver circuit," IEEE Trans. Electron Devices 56, 229-235 (2009).

2008 (4)

M. H. Kang, J. H. Hur, Y. D. Nam, E. H. Lee, S. H. Kim, J. Jang, "An optical feedback compensation circuit with a-Si:H thin-film transistors for active matrix organic light emitting diodes," J. Non-Cryst. Solids 354, 2523-2528 (2008).

G. Reza Chaji, A. Nathan, "Low-power low-cost voltage-programmed a-Si:H AMOLED display for portable devices," J. Display Technol. 4, 233-237 (2008).

M. R. Esmaeili-Rad, A. Sazonov, A. Nathan, "Analysis of the off current in nanocrystalline silicon bottom-gate thin-film transistors," J. Appl. Phys. 103, 074502 (2008).

M. Fernandes, Y. Vygranenko, A. Fantoni, R. Martins, M. Vieira, "Spectral response characterization of a-Si:H-based MIS-type photosensors," Phys. Stat. Solid. (c) 5, 3410-3413 (2008).

2007 (1)

M. R. Esmaeili-Rad, A. Sazonov, A. Nathan, "Absence of defect state creation in nanocrystalline silicon thin film transistors deduced from constant current stress measurements," Appl. Phys. Lett. 91, 113511 (2007).

2006 (1)

H. Lifka, W. Oepts, N. Bramante, S. Deane, D. Fish, N. Young, A. Steer, D. George, A. Giraldo, "Optical feedback for AMOLED pixel circuits," ECS Trans. 3, 23-33 (2006).

2005 (1)

D. Fish, N. Young, S. Deane, A. Steer, D. George, A. Giraldo, H. Lifka, O. Gielkens, W. Oepts, "Optical feedback for AMOLED display compensation using LTPS and a-Si:H technologies," SID Dig. 36, 1340-1343 (2005).

1998 (1)

G. Gu, S. R. Forest, "Design of flat-panel displays based on organic light-emitting devices," IEEE J. Sel. Top. Quantum Electron. 4, 83-99 (1998).

Appl. Phys. Lett. (1)

M. R. Esmaeili-Rad, A. Sazonov, A. Nathan, "Absence of defect state creation in nanocrystalline silicon thin film transistors deduced from constant current stress measurements," Appl. Phys. Lett. 91, 113511 (2007).

ECS Trans. (1)

H. Lifka, W. Oepts, N. Bramante, S. Deane, D. Fish, N. Young, A. Steer, D. George, A. Giraldo, "Optical feedback for AMOLED pixel circuits," ECS Trans. 3, 23-33 (2006).

IEEE J. Sel. Top. Quantum Electron. (1)

G. Gu, S. R. Forest, "Design of flat-panel displays based on organic light-emitting devices," IEEE J. Sel. Top. Quantum Electron. 4, 83-99 (1998).

IEEE Trans. Consumer Electron. (1)

H.-J. In, K.-H. Oh, O.-K. Kwon, C. H. Hyun, S.-C. Kim, "A luminance adjusting algorithm for high resolution and high image quality AMOLED displays of mobile phone applications," IEEE Trans. Consumer Electron. 56, 1191-1195 (2010).

IEEE Trans. Electron Devices (1)

N. P. Papadopoulos, A. A. Hatzopoulos, D. K. Papakostas, "An improved optical feedback pixel driver circuit," IEEE Trans. Electron Devices 56, 229-235 (2009).

J. Display Technol. (1)

G. Reza Chaji, A. Nathan, "Low-power low-cost voltage-programmed a-Si:H AMOLED display for portable devices," J. Display Technol. 4, 233-237 (2008).

J. Appl. Phys. (1)

M. R. Esmaeili-Rad, A. Sazonov, A. Nathan, "Analysis of the off current in nanocrystalline silicon bottom-gate thin-film transistors," J. Appl. Phys. 103, 074502 (2008).

J. Display Technol. (1)

M. Bagheri, S. J. Ashtiani, A. Nathan, "Fast voltage-programmed pixel architecture for AMOLED displays," J. Display Technol. 6, 191-195 (2010).

J. Non-Cryst. Solids (1)

M. H. Kang, J. H. Hur, Y. D. Nam, E. H. Lee, S. H. Kim, J. Jang, "An optical feedback compensation circuit with a-Si:H thin-film transistors for active matrix organic light emitting diodes," J. Non-Cryst. Solids 354, 2523-2528 (2008).

Phys. Stat. Solid. (c) (1)

M. Fernandes, Y. Vygranenko, A. Fantoni, R. Martins, M. Vieira, "Spectral response characterization of a-Si:H-based MIS-type photosensors," Phys. Stat. Solid. (c) 5, 3410-3413 (2008).

SID Dig. (1)

D. Fish, N. Young, S. Deane, A. Steer, D. George, A. Giraldo, H. Lifka, O. Gielkens, W. Oepts, "Optical feedback for AMOLED display compensation using LTPS and a-Si:H technologies," SID Dig. 36, 1340-1343 (2005).

Other (3)

G. R. Chaji, S. Alexander, J. M. Dionne, Y. Azizi, C. Church, J. Hamer, J. Spindler, A. Nathan, "Stable RGBW AMOLED display with OLED degradation compensation using electrical feedback," IEEE Solid-State Circuits Conf. Dig. Tech. Papers (2010) pp. 118-119.

Thin-Film Transistors (Marcel Dekker, 2003).

M. Fernandes, Y. Vygranenko, M. Vieira, G. Heiler, T. Tredwell, A. Nathan, "Transient current in a-Si:H-based MIS photosensors," Mater. Res. Soc. Symp. Proc. on Amorphous and Polycrystalline Thin-Film Silicon Science and Technol. (2008).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.