Addressing multistable nematic liquid crystal device

Details Addressing multistable nematic liquid crystal device Addressing multistable nematic liquid crystal device

2006-06-27

2006-06-27

Shalwala, Bipin (Department: 2673)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S089000, C345S094000, C345S097000, C345S564000, C345S566000, C349S076000, C349S077000, C349S169000, C349S179000, C349S184000, C349S185000

Reexamination Certificate

active

07068250

ABSTRACT:
A method of addressing multistable nematic liquid crystal devices, in particular bistable nematic liquid crystal devices is provided. The method is a line at a time addressing scheme where one of at least two data waveforms is applied simultaneously to each of the column electrodes whilst a strobe waveform is applied to a row. The strobe waveform comprises a blanking portion sufficient to cause the liquid crystal material to blank, irrespective of which data waveform is applied, immediately followed by a discriminating portion which is such that in combination with an appropriate data waveform allows for selective latching. At least part of both the blanking portion and the discriminating portion are applied during the line address time for the particular row of interest.

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Surguy P W H et al: “The Jorers/Al Vey Ferroelectric Multiplexing Scheme” Ferroelectrics, New York, NY, US, vol. 122, No. 1/4, 1991, pp. 63-79, XP000603231 p. 67, paragraph 4-p. 68, line 3: figure 3.

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