A polarisation-independent blue-phase liquid crystal lens array using gradient electrodes |
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| Authors: | Fan Chu Hu Dou Gui-Peng Li Ya-Li Song Lei Li |
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| Institution: | School of Electronics and Information Engineering, Sichuan University, Chengdu China |
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| Abstract: | A polarisation-independent blue-phase liquid crystal lens array using gradient electrodes is proposed. A high dielectric constant layer helps to smoothen out the horizontal electric field and reduce the operating voltage. With gradient electrodes and a planar top electrode, gradient electric fields are generated and lens-like phase profile is obtained. When the applied voltage is changed, the focal length of the lens can be tuned from ∞ to 5.94 mm. Besides, the simulation results show that the lens is insensitive to polarisation while keeping parabolic-like profile. |
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| Keywords: | Blue-phase Kerr effect liquid crystal lens polarisation independence |
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