Abstract: A circuit design includes a flexible film, an electrode pattern, and a connecting circuit. The flexible film has a visible area and a bending area and includes an external conductive connection. The electrode pattern is disposed in the visible area of the flexible film. The connecting circuit is electrically connected to the electrode pattern and disposed in the bending area of the flexible film. The bending area has a first portion and a second portion. The first portion is located between the visible area and the second portion. A width of one end of the second portion connected to the first portion is smaller than a width of the first portion. The external conductive connection is electrically connected to the connecting circuit and located at another end of the second portion.

Abstract: An electronic device includes an integrated circuit and a smart film layer. Integrated circuit is configured to output a control signal. Smart film layer is coupled to integrated circuit and includes a first substrate, a second substrate, a liquid crystal layer, a transparent glue layer, a cover, and at least one touch electrode layer. Second substrate is located on first substrate. Liquid crystal layer is located between first substrate and second substrate. Transparent glue layer is located on second substrate. Cover is located on transparent glue layer. At least one touch electrode layer is located between two of first substrate, second substrate, liquid crystal layer, transparent glue layer, or cover. At least one touch electrode layer is configured to transmit a touch signal or at least one touch electrode layer is configured to control liquid crystal layer to present in transparent states according to control signal of integrated circuit.