Protective panel with touch input function of electronic instrument display window
A touch input and panel protection technology, applied in the input/output process of data processing, circuits, electric switches, etc., can solve the problems of low reliability, improve reliability, prevent poor conduction, and improve adhesion Effect
Inactive Publication Date: 2010-02-03
NISSHA PRINTING COMPANY
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Problems solved by technology
[0016] However, in the connection structure of the FPC flexible printed circuit board 10 using metal pins, since the above-mentioned circuit 10c and the above-mentioned heads of the above-mentioned metal pins 11 to 14 are connected only by surface contact, there is a problem of low reliability.
Method used
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Embodiment 1
[0124] An ITO film with a thickness of 20 nm was formed on the entire surface of a PET film with a thickness of 0.1 mm by sputtering, and the peripheral part of the ITO film was removed to form a large-width rectangular transparent electrode.
[0125] In addition, the bus bars disposed on both laterally opposite sides of the transparent electrode and the draw wires for outputting from the bus bars to the outside were formed by screen printing silver paste.
[0126] In addition, an acrylic plate with a thickness of 0.7 mm having the same vertical and horizontal dimensions as the above-mentioned PET film was attached to the surface of the above-mentioned PET film opposite to the surface on which the transparent electrode was formed by using a transparent adhesive with a thickness of 0.025 mm. By the drill method, a through hole with a diameter of 1.5 mm into which a pin shaft of an FPC flexible printed circuit board with a pin described later is inserted was drilled in the edge p...
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A protective panel with a touch input function of an electronic instrument display window, which is excellent in reliability in an FPC connection. The panel is structured such that its outer side facecan be fitted into a panel fitting part of a casing having an aperture and kept without a gap to form a leveled plane and is structured to protect a display device provided under it externally visibly through a transparent window. The FPC (10) with a pin for taking out an electric signal through a through hole from the rear of the protective panel is characterized by that a metallic pin fixing hole (10e) is bored on a film base material (10f) and a circuit (10c) serving as a conductive part at a connecting end (10a) of the FPC, a metallic pin (14) having a pin shaft (14b) and a head (14a) formed in a larger diameter than the outer diameter of the pin shaft is inserted into the metallic pin fixing hole from the side of the circuit, a cover lay film (10b) is stuck onto the circuit (10c) andthe film base material (10f) to cover the head of the metallic pin, and also a conductive adhesive layer (21) is sandwiched between the circuit (10c) and the head of the metallic pin (14).
Description
technical field [0001] The present invention relates to display windows for portable information terminals such as PDAs and handheld terminals, OA equipment such as copiers and facsimile machines, smart phones, mobile phones, portable game devices, electronic dictionaries, car navigation systems, small PCs, and various home appliances. The protection panel of the present invention particularly relates to a protection panel with a touch input function for a display window of an electronic device that can improve the reliability of the FPC flexible printed circuit board connection part on the above-mentioned protection panel. Background technique [0002] The casings of electronic devices such as mobile phones and smartphones are generally composed of synthetic resin front casings and rear casings. [0003] Specifically, on the surface of the front case, in order to protect the liquid crystal display window, a protective panel is fixed by fusion or the like. Moreover, the pro...
Claims
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IPC IPC(8): G06F3/041G06F3/045H01H13/04H01H13/712
CPCH05K2201/10871H05K1/118H05K2201/10303H05K3/281G06F3/045H05K3/321
Inventor 中村一登桥本孝夫西川和宏甲斐义宏楠田康次朝仓刚室井英之冈本好司
Owner NISSHA PRINTING COMPANY