Planar Micro-nano-coils For Electrically Driving Liquid Crystal Microlenses Based On Wireless Power Transmission

In recent years, researches on electrically driving liquid crystal microlenses(LCMs) are growing rapidly, and the imaging systems based on LCMs are gradually becoming mature, and then the applications are also extended continuously. So far, the imaging systems with LCMs are developed towards the integration and miniaturization. The demands of simplifying electronic control system and improving light-control efficiency and reducing power consumption and device and system cost, are driving to promote or upgrade the micro-structural and electrical performances of LCMs. In this dissertation, the researches on electrically driving LCMs based on planar micro-nano-wireless power transmission coils are carried out, and the micro-system of several planar micro-nano-wireless power transmission coils are designed and fabricated successfully. Through integrating coils as above with LCMs controlling structures, the focusing and imaging effectiveness of LCMs can be improved or even upgraded. A kind of novel architecture for stimulating space electrical field by micro-nano-nonuniform planar coils, which are used to instead of traditional complex electrodes of LCMs, is demonstrated, firstly. The main works are as follows:(1) Planar micro-nano-wireless power transmission model based on the theory of magnetic resonant wireless power transmission is established, and the parameter analyses and model comparisons of micro-nano-coils are made;(2) Several typical shape and structural size of planar micro-nano-wireless power transmission coils are designed, and the inductance values of different shape coils are calculated according to relevant algorithms;(3) Using standard microelectronics technology, the planar micro-nano-wireless power transmission coils are fabricated effectively, and further tested so as to efficiently evaluate wireless power transmission efficiency. Using the traditional light testing systems, the integrated structures of micro-nano-coils and electrically driving LCMs are measured and analyzed for acquiring the focusing and imaging properties of LCMs fabricated.(4) A novel micro-nano-coil-structure for driving LCMs is put forward, and the space electromagnetic field is simulated by using electromagnetic simulation software. Several arrayed micro-structures of a set of four planar micro-nano-nonuniform spiral coils are designed and fabricated, and the electrical properties of the coils are given.