In a semitransparent liquid crystal display device comprising semitransparent layers having a projections and depressions structure including reflective portions and transparent portions, the transparent portions are formed so as to include nearly flat regions of the projections and depressions structure. In one embodiment, the lock construction comprises a clutch mechanism that can be activated electrically to allow latching or unlatching of the door. The motion transfer system includes a housing, a first piston having a first effective area disposed in the housing, and a second piston having a second effective area disposed in the housing. The method further includes receiving the power signal and the control signal at an inverter-based device which has a plurality of inverters, converting the power signal into a controlled power signal based on the control signal, and driving a plurality of components of the refrigeration system with the controlled power signal, which are also controlled by the control. Alert information is recorded for later display and review by the parent or supervisor. The leg support is moveable between opposing first and second positions wherein folding of the stroller frame moves the leg support to the second position.