R&D Sample Packaging
Jianxin Optoelectronics has independently developed advanced packaging processes and can provide high-quality customization of wavelength, liquid-crystal cell thickness, device dimensions, device operating mode, and liquid-crystal materials to specific customer requirements. Customer case: the School of Electronics and Information Engineering at Anhui University published the paper "Switching Dynamics Mechanism of Liquid-Crystal Cells under High-Frequency Pulse Driving," DOI: 10.37188/CJLCD.2025-0168. Abstract: High-resolution liquid-crystal spatial light modulators driven by high-frequency pulses are widely used in holographic imaging, near-eye AR/VR, and optical communications. However, insufficiently fast liquid-crystal cell response and output jitter remain technical problems requiring solutions. Existing studies mainly focus on static or slowly varying low-frequency electric fields, and the complex relationship between high-frequency pulse driving and switching dynamics remains unclear. Based on the Ericksen-Leslie dynamic theory for nematic liquid crystals, this paper discusses and simulates characteristic curves of the equations under inertia-dominated or viscosity-dominated conditions. Based on this discussion, a parallel-aligned liquid-crystal cell with a cell thickness of approximately 1 μm is driven by rectangular pulses at 1~10 kHz, and the relaxation process is observed using light intensity measurements. The results show that, after the driving field is switched off, relaxation of the nematic liquid-crystal deformation is jointly governed by inertial and viscous properties. Based on this finding, the paper considers that this model can explain liquid-crystal cell switching dynamics more precisely and will help optimize liquid-crystal spatial light modulator designs. The authors also hope the work will encourage further investigation of liquid-crystal cell switching dynamics under high-frequency pulse driving. Keywords: liquid-crystal spatial light modulator; high-frequency pulse driving; Ericksen-Leslie dynamic theory; director switching dynamics; inertial and viscous effects.
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