The “JOERS/Alvey” ferroelectric multiplexing scheme

5.4: A Defect Free Bistable C1 SSFLC Display

“…Normally, C2 is achieved with a low pretilt. [5,6,7] The disadvantage of C2 structure is the low contrast ratio in the zero field memory state. On the other hand, with an intermediate pretilt angle, a zigzag free C1 structure can be achieved.…”

On the measurement of switching parameters of ferroelectric liquid crystal devices: A new method for material assessment

“…Making the approximation that the dielectric uniaxiality A& = 0 and assuming low surface pretilt, an expression for the AC-stabilized azimuthal angle can be derived, using the expressions for the zero and infinite voltage stabilized values:' (1) tan 6 E"d&Vz,,…”

The synthesis and mesomorphic properties of 2,2′,3-tri- and 2,2′,3,3′-tetra-fluoro-1,1′∶4′,1″-terphenyls for high dielectric biaxiality ferroelectric liquid crystal mixtures

“…13 Although four steps were required to generate each boronic acid (5) the methods were all operationally simple and the overall yields were high. The coupling reactions of these highly substituted arylboronic acids with the bromofluoroiodobenzene (6) were required to be selective in order to provide the intermediates 7a-d. Initial results were not encouraging as extensive double coupling was found to occur.…”

“…Ideally, the quantity of the required chiral material should be as low as possible so as to minimise the viscosity, but must be sufficiently high to provide the necessary spontaneous polarisation. [3][4][5][6] The very nature of the smectic C phase means that there is a requirement for the molecules to be polar and non-symmetrical so as to generate molecular tilting. Generally, it was thought that the tilting was generated by the presence of terminal outboard dipoles that work in opposition of each other, and this theory was supported by all the smectic C materials known at the time.…”