Panel assembly structure and panel assembling method capable of

Details Panel assembly structure and panel assembling method capable of Panel assembly structure and panel assembling method capable of

1994-12-20

1997-01-07

Sparks, Donald A.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

174254, 361749, 361767, 361769, 361771, 361773, 361774, 361776, 361779, 361784, 361787, 361790, 439 66, 439 91, H05K 111, H05K 114, H01R 2368, H01R 2372

Patent

active

055923658

ABSTRACT:
There is provided a display panel assembly structure capable of achieving a highly reliable connection even when fine-pitch electrode terminals are employed. A second electrode terminal is embedded in a flexible printed circuit board, and protrudes slightly from the flexible printed circuit board within a range of 0 to 2.times.10.sup.-3 mm. By embedding the second electrode terminal in the flexible printed circuit board, an apparent thickness of the second electrode terminal is reduced while keeping the rigidity of the second electrode terminal to thereby improve etching accuracy of a top surface thereof. With the reduction of the protrusion amount of the second electrode terminal, a ratio of a thickness of an anisotropic conductive film to a diameter of a conductive particle can be made to be approximately "1". With the above-mentioned arrangement, the flow of the conductive particles is suppressed to prevent the possible reduction in amount of the conductive particles between a first electrode terminal and the second electrode terminal and further prevent the conductive particles from flowing into a space portion between adjoining first and second electrode terminals. A highly reliable connection between the panel having the fine-pitch electrode terminals and a circuit board can be achieved.

REFERENCES:
patent: 3795047 (1974-03-01), Abolafia et al.
patent: 4744850 (1988-05-01), Imano et al.
patent: 5001302 (1991-03-01), Atsumi
patent: 5180888 (1993-01-01), Sugiyama et al.
patent: 5434452 (1995-07-01), Higgins, III

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