Printed circuit board having colored outer layer

Details Printed circuit board having colored outer layer Printed circuit board having colored outer layer

2008-01-29

2008-01-29

Lam, Cathy F. (Department: 1775)

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

C174S258000, C257S729000

Reexamination Certificate

active

11232078

ABSTRACT:
In a printed board having a land as an electrode, a colored thermoplastic resin film is arranged on a land forming surface of a thermoplastic resin member so as to set a difference in light reflectivity between the land and the colored thermoplastic resin film, to be greater than that between the land and the thermoplastic resin member. An opening portion is provided in the colored thermoplastic resin film so that at least a part of the land is exposed from the opening portion. Because the colored thermoplastic resin film is positioned on the circumference portion of the opening portion, the difference in light reflectivity of the land with respect to its circumference portion can be effectively increased. As a result, a recognition ratio of the land can be effectively improved.

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Notice of Preliminary Rejection from Korean Patent Office issued on Nov. 13, 2006 for the corresponding Korean patent application No. 10-2005-0088958 (a copy and English translation thereof).

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