| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved EWOD device which enables droplets to be manipulated and can detect a change in an electric property of a hydrophobic surface provided in a dielectric electrowetting device.SOLUTION: The device includes a plurality of array elements to manipulate one or more droplets of fluid present on an array. Each of the array elements includes a corresponding array element circuit. Each array element circuit includes write circuitry to write data to the corresponding array element for controlling the manipulation of the one or more droplets of fluid, and sensor circuitry to detect an impedance present at the corresponding array element. The sensor circuitry operates in either a normal mode of sensitivity for detection of a droplet or a high sensitivity mode to detect an electric property of an array element hydrophobic surface. The sensor circuitry includes an active element, such as an active capacitor or active transistor, and a capacitance across the active element is different in the normal sensitivity mode than in the high sensitivity mode. |
