| 摘要 |
A media pane comprises a great number of LED elements for information display provided with control units connected by information line to the central control device and power supply units connected by power feeders to supply sources and arranged on carriers fixed on the side of building with formation of transparent rear projection screen. The control units of all LED displaying elements are made as one common remote central control unit, supply units of all LED elements are made as at least one common power supply unit capable of converting AC to DC with voltage reduction up to level safe for distance transmission. Each LED displaying elements is provided with a system of differential receivers, system for information signal decompression and electric current microconverter capable of reducing DC voltage up to working value for light-emitting diodes. The sending board of the central control unit is connected to the system of differential receivers and system for information signal decompression of each LED displaying element through common receiving board to differentiating amplifiers. |
