This paper reports the implementation and integration of a self-assembled nanoporous anodic aluminum
oxide (np-AAO) film and liquid crystal (LC) on an ITO–glass substrate for liquid crystal display
(LCD) panel applications. An np-AAO layer with a nanopore array acts as the vertical alignment layer
to easily and uniformly align the LC molecules. Moreover, the np-AAO nanoalignment layer provides
outstanding material properties, such as being inorganic with good transmittance, and colorless on
ITO–glass substrates. In this application, an LCD panel, with the LC on the np-AAO nanoalignment
layer, is successfully implemented on an ITO–glass substrate, and its performance is demonstrated.
The measurements show that the LCD panel, consisting of an ITO–glass substrate and an np-AAO layer,
has a transmittance of 60–80%. In addition, the LCD panel switches from a black state to a bright
state at3 V rms , with a response time of 62.5 ms. In summary, this paper demonstrates the al…

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Liquid crystal alignment in nanoporous anodic aluminum oxide layer for LCD panel applications