An isolated flyback converter having temperature compensation uses primary side sensing and an output diode, the output diode having a variable voltage drop related to its temperature. The rigid segments are linked by hinges or cables so the display is flexible and can be rolled up for storage and transport. Each module includes an evaporator section, a condenser section and a power section including a compressor and an inverter. The first secondary winding is wound on the first leg and the second leg, and induces a first inductance by the first air gap.