Effect of Chiral Dopant Concentration on the Time Response of a Twisted Nematic Cell
Molecular Crystals and Liquid Crystals
twisted nematic cell, TN cell, temperature dependence, chiral dopant, 3π/2 cell
The dependence of the turn-off time, Toff, of a twisted nematic cell on the cell thickness and the chiral dopant concentration has been measured. Toff dropped and the optical bounce disappeared when the cell thickness exceeded p/2, where p is the induced pitch length. Under these conditions a 3π/2 cell was obtained. It appears possible, on the basis of our results, to reduce the temperature dependence of Toff by adding the correct amount of chiral dopant.
Kumar, Satyendra (1987). Effect of Chiral Dopant Concentration on the Time Response of a Twisted Nematic Cell. Molecular Crystals and Liquid Crystals 144(5), 127-136. doi: 10.1080/15421408708084209 Retrieved from https://digitalcommons.kent.edu/phypubs/207