Abstract

Current-programmed active matrix (AM) architectures that are independent of fabrication technology are attractive for display and sensor because of their ability to tolerate mismatches and nonuniformity caused by aging. However, the long settling time due to low current levels and large parasitic capacitance can be a significant limitation. In this paper, we present a fast current-mode line driver based on positive feedback which controls the effect of parasitic capacitance. The driver was fabricated in 0.8-$\mu$m 20-V CMOS technology. While the measured settling time of a conventional current source is around 2 ms for a 100-nA input current and 200-pF parasitic capacitance, it is less than 4 $\mu$s for the driver presented here. Moreover, an offset-leakage cancellation technique is implemented for the fabricated driver to reduce the effect of leakage and offset currents to few nA.

© 2009 IEEE

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  1. R. D. McGrath, V. S. Clark, P. K. Duane, L. G. Mcllrath, W. D. Washkurak, "Current-mediated, current-reset 768$\,\times\,$512 active pixel sensor array," IEEE Int. Solid State Circuits Conf. Dig. Tech. Papers (1997) pp. 182-183.
  2. G. B. Levy, W. Evans, J. Ebner, P. Farrell, M. Hufford, B. H. Allison, D. Wheeler, H. Lin, O. Prache, E. Naviasky, "An 852$\times$600 pixel OLED-on-silicon color microdisplay using CMOS subthreshold-voltage-scaling current drivers," IEEE J. Solid-State Circuits 37, 1879-1889 (2002).
  3. J. H. Baek, M. Lee, J. H. Lee, H. S. Pae, C. J. Lee, J. Kim, J. Kim, C. S. Choi, H. K. Kim, T. J. Kim, H. K. Chung, "A current-mode display driver IC using sample-and-hold scheme for QVGA full-color active matrix organic LED mobile displays," IEEE J. Solid-State Circuits 41, 2974-2982 (2006).
  4. A. Nathan, A. Kumar, K. Sakariya, P. Servati, S. Sambandan, K. S. Karim, D. Striakhilev, "Amorphous silicon thin film transistor circuit integration for organic LED displays on glass and plastic," IEEE J. Solid-State Circuits 39, 1477-1486 (2004).
  5. A. Nathan, G. R. Chaji, S. J. Ashtiani, "Driving schemes for a-Si and LTPS AMOLED displays," IEEE J. Display Technol. 1, 267-277 (2005).
  6. Y. He, R. Hattori, J. Kanicki, "Improved a-Si:H TFT circuits for active-matrix organic light emitting displays," IEEE Trans. Electron Devices 48, 1322-1325 (2001).
  7. J. Lee, W. Nam, S. Jung, M. Han, "A new current-scaling pixel circuit for AMOLED," IEEE Electron Device. Lett. 25, 280-282 (2003).
  8. A. Pavasonic, A. G. Andreou, C. R. Westgate, "Characterization of subthreshold mos mismatch in transistors for VLSI systems," Analog Integr. Circuits and Signal Process. 6, 75-85 (1994).
  9. G. R. Chaji, A. Nathan, "A fast settling current driver based on the CCII for AMOLED displays," IEEE J. Display Technol. 1, 283-288 (2005).
  10. S. Ono, Y. Kobayashi, "An accelerative current-programming method for AM-OLED," IEICE Trans. Electron. E88-C, 264-269 (2005).
  11. Y. C. Lin, H. P. Shieh, J. Kanicki, "A novel current scaling a-Si:H TFTs pixel electrode circuit for AM-OLEDs," IEEE Trans. Electron Devices 52, 1123-1131 (2005).
  12. C. Toumazou, F. J. Lidgey, D. G. Haigh, Analogue IC Design: The Current-Mode Approach (Peter Peregrinus, 1990) pp. 93-126.
  13. G. R. Chaji, A. Nathan, "High-precision, fast current source for large-area current-programmed a-Si flat panels," Proc. IEEE ISCAS'06 (2006) pp. 541-544.

2006 (1)

J. H. Baek, M. Lee, J. H. Lee, H. S. Pae, C. J. Lee, J. Kim, J. Kim, C. S. Choi, H. K. Kim, T. J. Kim, H. K. Chung, "A current-mode display driver IC using sample-and-hold scheme for QVGA full-color active matrix organic LED mobile displays," IEEE J. Solid-State Circuits 41, 2974-2982 (2006).

2005 (4)

A. Nathan, G. R. Chaji, S. J. Ashtiani, "Driving schemes for a-Si and LTPS AMOLED displays," IEEE J. Display Technol. 1, 267-277 (2005).

G. R. Chaji, A. Nathan, "A fast settling current driver based on the CCII for AMOLED displays," IEEE J. Display Technol. 1, 283-288 (2005).

S. Ono, Y. Kobayashi, "An accelerative current-programming method for AM-OLED," IEICE Trans. Electron. E88-C, 264-269 (2005).

Y. C. Lin, H. P. Shieh, J. Kanicki, "A novel current scaling a-Si:H TFTs pixel electrode circuit for AM-OLEDs," IEEE Trans. Electron Devices 52, 1123-1131 (2005).

2004 (1)

A. Nathan, A. Kumar, K. Sakariya, P. Servati, S. Sambandan, K. S. Karim, D. Striakhilev, "Amorphous silicon thin film transistor circuit integration for organic LED displays on glass and plastic," IEEE J. Solid-State Circuits 39, 1477-1486 (2004).

2003 (1)

J. Lee, W. Nam, S. Jung, M. Han, "A new current-scaling pixel circuit for AMOLED," IEEE Electron Device. Lett. 25, 280-282 (2003).

2002 (1)

G. B. Levy, W. Evans, J. Ebner, P. Farrell, M. Hufford, B. H. Allison, D. Wheeler, H. Lin, O. Prache, E. Naviasky, "An 852$\times$600 pixel OLED-on-silicon color microdisplay using CMOS subthreshold-voltage-scaling current drivers," IEEE J. Solid-State Circuits 37, 1879-1889 (2002).

2001 (1)

Y. He, R. Hattori, J. Kanicki, "Improved a-Si:H TFT circuits for active-matrix organic light emitting displays," IEEE Trans. Electron Devices 48, 1322-1325 (2001).

1994 (1)

A. Pavasonic, A. G. Andreou, C. R. Westgate, "Characterization of subthreshold mos mismatch in transistors for VLSI systems," Analog Integr. Circuits and Signal Process. 6, 75-85 (1994).

Analog Integr. Circuits and Signal Process. (1)

A. Pavasonic, A. G. Andreou, C. R. Westgate, "Characterization of subthreshold mos mismatch in transistors for VLSI systems," Analog Integr. Circuits and Signal Process. 6, 75-85 (1994).

IEEE Electron Device. Lett. (1)

J. Lee, W. Nam, S. Jung, M. Han, "A new current-scaling pixel circuit for AMOLED," IEEE Electron Device. Lett. 25, 280-282 (2003).

IEEE J. Display Technol. (1)

G. R. Chaji, A. Nathan, "A fast settling current driver based on the CCII for AMOLED displays," IEEE J. Display Technol. 1, 283-288 (2005).

IEEE J. Solid-State Circuits (1)

J. H. Baek, M. Lee, J. H. Lee, H. S. Pae, C. J. Lee, J. Kim, J. Kim, C. S. Choi, H. K. Kim, T. J. Kim, H. K. Chung, "A current-mode display driver IC using sample-and-hold scheme for QVGA full-color active matrix organic LED mobile displays," IEEE J. Solid-State Circuits 41, 2974-2982 (2006).

IEEE Trans. Electron Devices (1)

Y. C. Lin, H. P. Shieh, J. Kanicki, "A novel current scaling a-Si:H TFTs pixel electrode circuit for AM-OLEDs," IEEE Trans. Electron Devices 52, 1123-1131 (2005).

IEEE J. Display Technol. (1)

A. Nathan, G. R. Chaji, S. J. Ashtiani, "Driving schemes for a-Si and LTPS AMOLED displays," IEEE J. Display Technol. 1, 267-277 (2005).

IEEE J. Solid-State Circuits (2)

A. Nathan, A. Kumar, K. Sakariya, P. Servati, S. Sambandan, K. S. Karim, D. Striakhilev, "Amorphous silicon thin film transistor circuit integration for organic LED displays on glass and plastic," IEEE J. Solid-State Circuits 39, 1477-1486 (2004).

G. B. Levy, W. Evans, J. Ebner, P. Farrell, M. Hufford, B. H. Allison, D. Wheeler, H. Lin, O. Prache, E. Naviasky, "An 852$\times$600 pixel OLED-on-silicon color microdisplay using CMOS subthreshold-voltage-scaling current drivers," IEEE J. Solid-State Circuits 37, 1879-1889 (2002).

IEEE Trans. Electron Devices (1)

Y. He, R. Hattori, J. Kanicki, "Improved a-Si:H TFT circuits for active-matrix organic light emitting displays," IEEE Trans. Electron Devices 48, 1322-1325 (2001).

IEICE Trans. Electron. (1)

S. Ono, Y. Kobayashi, "An accelerative current-programming method for AM-OLED," IEICE Trans. Electron. E88-C, 264-269 (2005).

Other (3)

R. D. McGrath, V. S. Clark, P. K. Duane, L. G. Mcllrath, W. D. Washkurak, "Current-mediated, current-reset 768$\,\times\,$512 active pixel sensor array," IEEE Int. Solid State Circuits Conf. Dig. Tech. Papers (1997) pp. 182-183.

C. Toumazou, F. J. Lidgey, D. G. Haigh, Analogue IC Design: The Current-Mode Approach (Peter Peregrinus, 1990) pp. 93-126.

G. R. Chaji, A. Nathan, "High-precision, fast current source for large-area current-programmed a-Si flat panels," Proc. IEEE ISCAS'06 (2006) pp. 541-544.

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