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Journal of Display Technology

Journal of Display Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 5, Iss. 2 — Feb. 1, 2009
  • pp: 49–56

Low Power Techniques for Gray Shades in Liquid Crystal Displays

T. N. Ruckmongathan

Journal of Display Technology, Vol. 5, Issue 2, pp. 49-56 (2009)


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Abstract

The largest transition in the select waveform of successive approximation technique is eliminated to reduce power dissipation in liquid crystal displays. Power dissipation in the driver circuit is analyzed for gray scale images by considering three select sequences. They are compared and a new select sequence is proposed to achieve low power dissipation. An additional pulse is introduced in the select waveform to reduce peak amplitude of select and data waveforms to achieve a low supply voltage for the driver circuit.

© 2009 IEEE

Citation
T. N. Ruckmongathan, "Low Power Techniques for Gray Shades in Liquid Crystal Displays," J. Display Technol. 5, 49-56 (2009)
http://www.opticsinfobase.org/jdt/abstract.cfm?URI=jdt-5-2-49


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References

  1. T. N. Ruckmongathan, M. Govind, G. Deepak, "Reducing power consumption in liquid-crystal displays," IEEE Trans. Electron Devices 53, 1559-1566 (2006).
  2. T. N. Ruckmongathan, "Techniques for reducing the hardware complexity and the power consumption of drive electronics," Proc. Asian Symp. on Inf. Display (ASID'06) (2006) pp. 115-120.
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