Abstract

Design and development of a controller to display multiple waveforms using liquid crystal displays (LCDs) is presented. The controller generates the column signals directly from samples of the waveforms. A low cost passive matrix display with simple drive electronics for Logic Analyzers and Oscilloscopes is demonstrated.

© 2005 IEEE

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References

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  1. I. A. Shanks and P. A. Holland, "Addressing methods for nonmultiplexed liquid crystal oscilloscope displays", in SID Int. Symp. Dig. Tech. Papers, 1979, pp. 112- 113.
  2. T. N. Ruckmongathan, "An LCD for multitrace oscilloscope", in SID Int. Symp. Dig. Tech. Papers, 1986, pp. 128-131.
  3. P. M. Alt and P. Pleshko, "Scanning limitations of liquid crystal displays", IEEE Trans. Electron Devices, vol. ED-21, pp. 146 -155, 1974.
  4. T. N. Ruckmongathan, "Flicker free restricted pattern addressing techniques with low supply voltage", in SID Int. Symp. Dig. Tech. Papers, 1996, pp. 562- 565.
  5. P. Y. Vijaya, D. J. Reddappa and T. N. Ruckmongathan, "A simple controller for displaying restricted patterns in RMS responding LCDs", in SID Int. Symp. Dig. Tech. Papers, vol. 30, May 1999, pp. 234- 237.
  6. K. G. PaniKumar and T. N. Ruckmongathan, "An addressing technique for displaying restricted pattern in rms-responding LCD's by selecting a few rows at a time", J. SID, vol. 8, no. 2, pp. 155-162, 2000.
  7. H. Kawakami, Y. Nagae and E. Kaneko, "Matrix addressing technology of twisted nematic liquid crystal display", in Conference Record of 1976 BIENNIAL Display Conf., 1976, pp. 50- 53.

Other

I. A. Shanks and P. A. Holland, "Addressing methods for nonmultiplexed liquid crystal oscilloscope displays", in SID Int. Symp. Dig. Tech. Papers, 1979, pp. 112- 113.

T. N. Ruckmongathan, "An LCD for multitrace oscilloscope", in SID Int. Symp. Dig. Tech. Papers, 1986, pp. 128-131.

P. M. Alt and P. Pleshko, "Scanning limitations of liquid crystal displays", IEEE Trans. Electron Devices, vol. ED-21, pp. 146 -155, 1974.

T. N. Ruckmongathan, "Flicker free restricted pattern addressing techniques with low supply voltage", in SID Int. Symp. Dig. Tech. Papers, 1996, pp. 562- 565.

P. Y. Vijaya, D. J. Reddappa and T. N. Ruckmongathan, "A simple controller for displaying restricted patterns in RMS responding LCDs", in SID Int. Symp. Dig. Tech. Papers, vol. 30, May 1999, pp. 234- 237.

K. G. PaniKumar and T. N. Ruckmongathan, "An addressing technique for displaying restricted pattern in rms-responding LCD's by selecting a few rows at a time", J. SID, vol. 8, no. 2, pp. 155-162, 2000.

H. Kawakami, Y. Nagae and E. Kaneko, "Matrix addressing technology of twisted nematic liquid crystal display", in Conference Record of 1976 BIENNIAL Display Conf., 1976, pp. 50- 53.

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