Figure 5 | NPG Asia Materials

Figure 5

From: Standing wave-mediated molecular reorientation and spontaneous formation of tunable, concentric defect arrays in liquid crystal cells

Figure 5

Simulation of the director profile under a weak bending deformation and vertical fields. (a) Simulation results for the director profile. When an LC flow is induced, the shear effect causes the molecules near the surfaces to tilt along the flow direction. When the electric field is subsequently applied, the director profile changes to one with the minimal elastic deformation energy in either the right- or left-twist deformation (left and right sides). (b) The corresponding director tilting directions for the left- and right-twist deformations. (c) Feasible deformations under the application of electric fields (see the main text). (d) The ‘pulse ON’ signal drives the p+ pressure wave, which exhibits a pressure maxima in the central region, and the elastic restoring force drives the p− pressure wave. Due to the periodic pressure wave, the concentric defect array pattern is obtained.

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