The nano-scale pitch ferroelectric liquid crystal materials for modern display and photonic application employing highly effective chiral components: Trifluoromethylalkyl diesters of p-terphenyldicarboxylic acid

In-Plane Switching Deformed Helix Ferroelectric Liquid Crystal Display Cells

“…These are FLC-587-F7 possessing the tilt angle  = 31.6 at 22C and FLC-650 ( = 38.4 at 22C, as shown in Figure 3). Both nano-scale helix pitch FLC mixtures are composed of biphenylpyrimidines as an achiral smectic C matrix and trifluoromethylalkyl diesters of pterphenyldicarboxylic acid as chiral dopants possessing very high helical twisting power, as it has been described in detail [12]. These mixtures, which are special cases of the general material science approach described in [12], were taken into consideration, since they are characterized by rather different dependencies neff (E) and d(E), see Figure 3.…”

“…Both nano-scale helix pitch FLC mixtures are composed of biphenylpyrimidines as an achiral smectic C matrix and trifluoromethylalkyl diesters of pterphenyldicarboxylic acid as chiral dopants possessing very high helical twisting power, as it has been described in detail [12]. These mixtures, which are special cases of the general material science approach described in [12], were taken into consideration, since they are characterized by rather different dependencies neff (E) and d(E), see Figure 3. The above dependencies were obtained in the experimental setup based on the scheme of the Mach-Zehnder interferometer, which is described in detail [8].…”

P‐138: Fringe‐Field Effect of Ferroelectric Liquid‐Crystal Study Using Electrode Pattern for High Pixel Density Displays

“…The FLC with the helix pitch p=150nm, and the birefringence is around 0.18 was used. When the cell gap is 1.5 m, the cell meets the half-wave condition for 550nm [12]. The phase transition sequence of this FLC during heating cycle is Cr(12)SmC*(110)SmA*(127)Iso.…”

Electro-Optical Switching of the Main Optical Axis of a Ferroelectric Liquid Crystal Spiral Nanostructurein a Planar-Oriented Display Cell

“…3). Обе смеси СЖК состоят из бифенилпиримидинов в качестве ахиральной смектической С-матрицы и трифторметилалкильных диэфиров терфенилдикарбоновой кислоты в качестве хиральных легирующих примесей, обладающих очень высокой закручивающей способностью [12]. Эти смеси, которые являются частными случаями общего материаловедческого подхода, описанного в [12], были исследованы, поскольку они характеризуются довольно разными зависимостями eff n  (E) и  d (E), показанными на рис.…”

“…Кроме того, ячейки DHFLC обеспечивают электрооптическую модуляцию с частотой порядка 1 кГц (рис. 5) [6,12], что также является их очевидным преимуществом по сравнению с ячейками IPS НЖК.…”