Time-resolved liquid crystal voltage contrast: a new method for testing of digital integrated circuits

Wieberneit, M.; Lackmann, R.

doi:10.1016/0167-9317(95)00335-5

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Principle Of Driving Methods1

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2008

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“…Nematic liquid crystal director alignment is controlled by RMS voltage [5,6] . In a conventional driving method, the RMS voltage is controlled by amplitude modulation.…”

Section: Principle Of Driving Methodsmentioning

confidence: 99%

Driving method to reduce data refresh rate in nematic liquid crystal optical phased array

Liu

Zhang

et al. 2008

Fifth International Symposium on Instrumentation Science and Technology

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The structure of a storage capacitor in nematic liquid crystal optical phased array causes the data refresh rate to be higher than the liquid crystal switching frequency, which demands a high data bandwidth. A novel driving method was therefore proposed to reduce the data refresh rate. Without using a storage capacitor, the proposed method uses digital scanning instead of conventional analog scanning. Furthermore, digital scanning is able to drive all pixels in parallel and transmit driver data only once for one frame. 1-D nematic liquid crystal optical phased array was used to test the novel driving method. During the experiment two frames of driver data were alternately transmitted at a refresh rate of 10 Hz, and diffraction patterns were acquired. Experimental results demonstrate that the proposed method can be used to keep the data refresh rate lower than the liquid crystal switching frequency.

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“…Nematic liquid crystal director alignment is controlled by RMS voltage [5,6] . In a conventional driving method, the RMS voltage is controlled by amplitude modulation.…”

Section: Principle Of Driving Methodsmentioning

confidence: 99%

Driving method to reduce data refresh rate in nematic liquid crystal optical phased array

Liu

Zhang

et al. 2008

Fifth International Symposium on Instrumentation Science and Technology

View full text Add to dashboard Cite

show abstract

Time-resolved liquid crystal voltage contrast: a new method for testing of digital integrated circuits

Cited by 1 publication

References 9 publications

Driving method to reduce data refresh rate in nematic liquid crystal optical phased array

Driving method to reduce data refresh rate in nematic liquid crystal optical phased array

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