Thin film sensor, capacitive touch panel having the same and preparation method thereof and terminal product

A preparation method for a capacitive touch panel, the capacitive touch panel comprising:

• a cover lens provided with a window frame on a surface thereof;
• the window frame being fabricated on a surface of the cover lens by screen printing;
• a thin film sensor comprising a sensing electrode layer, and a driving electrode layer, and an optically transparent substrate;
• a surface of the cover lens having the window frame being bonded to the sensing electrode layer of the thin film sensor by optical glue;
• the substrate having two surfaces, the sensing electrode layer and the driving electrode layer being coated on the two surfaces, respectively;
• the substrate being a single layer film;
• and the sensing electrode layer being closer to the cover lens compared to the driving electrode layer;
• the method comprising preparing the thin film sensor by:
• coating two surfaces of the substrate with an optically transparent electrode material;
• etching the electrode material located on one surface of the substrate to form a sensing electrode pattern;
• etching the electrode material located on the other surface of the substrate to form a driving electrode pattern;
• and preparing the sensing electrode layer and the driving electrode layer by coating said two surfaces of the substrate with an ITO conductive film;
• bonding a first portion of a printed circuit board to the thin film sensor above the sensing electrode pattern using an anisotropic conductive adhesive;
• and bonding a second portion of the printed circuit board to the thin film sensor below the driving electrode pattern using an anisotropic conductive adhesive.