Electrical Connection Structure for One or More Segments of a Smart Dimming Film

An electrical connection structure for one or more segments of a smart dimming film, compromising:

• a dimming film body, comprising a control zone and several dimming zones, each of said dimming zones being provided with a dimming film and metal wires, said metal wires being led out and converged to said control zone;
• a flexible printed circuit board, said flexible printed circuit board sequentially comprising, from bottom to top, a first insulating layer, several independent circuits, and a second insulating layer, wherein a portion of said first insulating layer of said flexible printed circuit board laminated to said control zone is removed, and the exposed independent circuits are fixed to said metal wires via a conductive adhesive film layer, thereby connecting with said metal wires in said control zone;
• and
• a control unit, controlling said dimming film via said flexible printed circuit board, wherein
• the connection portion between said dimming film body and said flexible printed circuit board forms an electrically conductive structure;
• the said conductive adhesive film layer is provided with ventilation holes, said ventilation holes being disposed between said independent circuits and said metal wires;
• and
• U-shaped elongated slots are provided between the independent circuits of said flexible printed circuit board.