-A homogeneously aligned liquid crystal layer on a substrate film on which it is not necessary to form a liquid crystal alignment film can be assembled by a slit coater. Types of twisted nematic and in-plane switching flexible liquid crystal displays were demonstrated. The production time can be considerably shortened because of the lack of need for an alignment film. The slit coater method is also applicable to the roll-to-roll process.
The growing demand for an increased power-toweight ratio in a wearable robot’s components has helped drive trends in miniaturization in component production. This is because such “assist-bots” must maximize their usefulness as they minimize weight restrictions on the users wearing them. These trends have been hindered by the lack of ultra precision assembly and the limited availability of mini solenoid valves. An unconstrained valve driven by a PiezoElectric Actuator (PEA) is thus proposed for its simplicity and high miniaturization potential. In this paper, the realization ofminiaturized unconstrained valves is discussed, which covers the valve design towards miniaturization and implementation in robotics. A LC tuner improves PEA efficiency, increasing the output flow of small unconstrained valves.
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