Abstract
The invention discloses a micro-fluid control device and an operation method thereof. The micro-fluid control device comprises a light guide material layer and a runner. When light ray with specific light patterns are irradiated to the light guide material layer, the light guide material layer forms at least three virtual electrodes according to the specific light patterns. At least three visual electrodes comprise a first virtual electrode, a second virtual electrode and a third virtual electrode, wherein the second virtual electrode and the third virtual electrode are arranged on two sides of the first virtual electrode. Specific proportions exist in the gap between the first visual electrode and the third visual electrode, the width of the first visual electrode, the gap between the first visual electrode and the second visual electrode and the width of the second visual electrode. When the specific light patterns change, at least three visual electrodes change along with the change of the specific light patterns and generate an electric seepage force, and accordingly the movement state of the micro-fluid in the runner can be controlled.