A liquid dispensing system includes a downwardly inclined slide surface. A carrier liquid dispensing channel includes an outlet that exits onto the downwardly inclined slide surface. A carrier liquid flows continuously through the carrier liquid dispensing channel, the outlet of the carrier liquid dispensing channel, and down the slide surface. A liquid dispenser array structure includes functional liquid dispensers located on a substrate that is common to the functional liquid dispensers. The functional liquid dispensers include a functional liquid supply channel. A functional liquid source provides a functional liquid to the functional liquid dispensers through the functional liquid supply channel. A drop formation device, associated with an interface of the functional liquid supply channel and the downwardly inclined slide surface, is selectively actuated to form discrete functional liquid drops in the carrier liquid flowing down the slide surface. The functional liquid is immiscible in the carrier liquid.