Abstract
By applying driving voltage schemes with different rising gradient
and the same final voltage in an electrofluidic display device (EFD),
several kinds of oil patterns have been generated. The results show
that, in the initial stage of oil film splitting and contraction,
driving voltage has a crucial influence on the microfluidic behavior
and oil distribution in each pixel. Oil patterns significantly affect
the pixel aperture and, ultimately, the reflectivity of the display
panel. The oil pattern with fewer oil droplets has a higher aperture
ratio and higher reflectivity. The observation that oil patterns can
be controlled by varying driving schemes offers a new way of manipulating
oil motion in EFD pixels.
© 2015 IEEE
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