An optical switch, e.g. a display cell based on layer displacement or layer break up having at least two different states, in which one of the fluids e.g. oil in a first state adjoins at least a first support plate and in the second state the other fluid at least partly adjoins the first support plate. Part of an otherwise homogeneous electrode is removed to realize oil motion control.

An optical switch, e.g. a display cell based on layer displacement or layer break up having at least two different states, in which one of the fluids e.g. oil in a first state adjoins at least a first support plate and in the second state the other fluid at least partly adjoins the first support plate. Part of an otherwise homogeneous electrode is removed to realize oil motion control.

A pixel circuit includes a driving circuit, a control circuit and a gating circuit. The driving circuit is configured to control, under control of a scan signal and a signal received at an enable signal control terminal, on and off of a current path for transmitting a driving current signal. The control circuit is configured to transmit, under control of a control signal received at a control signal terminal, a first enable signal received at a first enable signal terminal or a second enable signal received at a second enable signal terminal to a first node. The gating circuit is configured to transmit, in response to an enable signal received at the first node, a first constant voltage signal received at the first constant voltage signal terminal or a second constant voltage signal received at the second constant voltage signal terminal to the enable signal control terminal.