Droplet interface in electrowetting device

Droplet interfaces are formed between droplets in an electrowetting device including an array of actuation electrodes. An actuation signal is applied to selected actuation electrodes to place the droplets in an energized state in which the shape of the droplets is changed compared to the shape of the droplets in the lower energy state and the two droplets are brought close. The actuation signal is then varied to reduce the energy of the droplets to a lower energy state such that the droplets relax into the gap and the two droplets are in contact with each other, thereby forming a droplet interface. The use of the sensing electrode in the device allows for the measurement of the current on the droplet interface. The sensing electrode may be used to (i) apply a reference signal during droplet actuation, or (ii) record a current measurement. 在包括致动电极阵列的电润湿装置中的液滴之间形成液滴界面。将致动信号施加到选定的致动电极，以使液滴置于通电状态，在所述通电状态中，与处于较低能量状态的液滴的形状相比，液滴的形状发生改变，并且使所述两个液滴靠近。然后改变致动信号以将液滴的能量降低到较低能量状态，使得液滴松弛到间隙中并且两个液滴彼此接触，从而形成液滴界面。在装置中使用感测电极允许测量