Abstract— A multistable liquid‐crystal device has been realized in this study; its smectic‐A LC is oriented by in‐plane and out‐of‐plane electric fields with various amplitudes. This paper introduces improvements made to electrode structure and hybrid surface treatments that have enhanced SmA LC device performance. The driving voltage of the hybrid‐aligned cell has been reduced to 20% of the vertical‐aligned one, and light leakage has been suppressed by out‐of‐plane electric‐field‐strength modulation. The many advantages of this multi‐stabilized LC device could be applied to memory devices and to flexible displays.
Main approach to obtain a multistabilized SmA LC device is to drive the orientations of the SmA LC through applying an in‐plane or an out‐plane electric field. To get better electric‐optical performances of the SmA LC device, an idea of the improvements on the electrode structure and the surface treatment of the cell is introduced here The experimental observations on the modification SmA LC device exhibit not only a high contrast ratio but also a low driving voltage.
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