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Flexible circuit board connected structure of electronic device

A technology of flexible circuit boards and electronic devices, applied in the structural connection of printed circuits, printed circuits, printed circuits, etc., can solve problems such as poor bonding strength and reliability, reduce materials and costs, avoid detachment, and improve reliability Effect

Active Publication Date: 2013-09-25
HANNSTAR DISPLAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, an embodiment of the present invention provides a flexible circuit board bonding structure of an electronic device, the flexible circuit board bonding structure has no metal contacts in the bonding area of ​​the electronic device, that is, in the wire area of ​​the electronic device The metal wires will not extend to the bonding area, and the flexible circuit board is bonded to the transparent conductive layer in the bonding area through the anisotropic conductive film, so it can overcome the anisotropic conductive film in the flexible circuit board bonding structure of the known electronic device. Reliability issues due to poor bonding strength with metal contacts

Method used

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  • Flexible circuit board connected structure of electronic device
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  • Flexible circuit board connected structure of electronic device

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Embodiment Construction

[0032] refer to figure 1 and figure 2 , figure 1 According to an embodiment of the present invention, a partial plan view of an electronic device 100 including a flexible printed circuit board bonding structure is shown, figure 2 Then it shows that according to an embodiment of the present invention, along figure 1 The cross-section lines A-A' and B-B' are partial cross-sectional schematic diagrams of the electronic device 100 including the flexible printed circuit board bonding structure. In one embodiment, the electronic device 100 is, for example, a touch panel. The electronic device 100 has a viewing area 100A, a tracing area 100B, and a bonding area 100C. Between the viewing area 100A and the bonding area 100C, a plurality of touch sensing electrodes 104 and 112 are disposed in the viewing area 100A, so the viewing area 100A is also called an active area. In one embodiment, these touch sensing electrodes 104 may be strip-shaped touch sensing electrodes extending alo...

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Abstract

The invention provides a flexible circuit board connected structure of an electronic device. The electronic device comprises a visible range, a wire range and a connected range. The wire range is arranged between the visible range and the connected range, and the flexible circuit board connected structure comprises a substrate. A transparent conducting layer is arranged on the substrate and extends to the connected range from the wire range, a metal wire layer is arranged on the transparent conducting layer of the wire range and does not extend to the connected range, an anisotropic conductive film is arranged on the transparent conducting layer of the connected range and is directly contacted with the transparent conducting layer, and a flexible circuit board is connected to the anisotropic conductive film. The reliability of the flexible circuit board connected structure of the electronic device can be improved.

Description

technical field [0001] The invention relates to a flexible circuit board joint structure of an electronic device, in particular to a flexible circuit board joint structure without metal contacts. Background technique [0002] Generally speaking, there are usually metal wires on the periphery of the active area of ​​the electronic device to electrically connect the electronic components in the active area, and in known electronic devices, the metal wires also extend to the outermost bonding area of ​​the electronic device. The flexible printed circuit (FPC) is bonded to the metal wire through the anisotropic conductive film (ACF), thereby transmitting the electrical signal provided by the flexible printed circuit to the electrons in the active area. element. [0003] In the flexible printed circuit board bonding structure of known electronic devices, the anisotropic conductive film (ACF) is in direct contact with the metal wire, however, the bonding strength between the mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H05K1/14
CPCH05K1/189H05K3/323H05K2201/10151G06F3/04164G06F3/0446G06F3/041G06F2203/04103
Inventor 刘智友邱正茂
Owner HANNSTAR DISPLAY CORPORATION
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