WIRING BOARD - ALPS ELECTRIC CO LTD

Title:

WIRING BOARD

Document Type and Number:

Japanese Patent JP2014160300

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a wiring board 101 for achieving an invisible state of a metallic wiring M1.SOLUTION: A wiring board 101 includes a transparent base material 9 and a circuit pattern 1 formed on the base material 9. At least a part of the circuit pattern 1 is a metallic wiring M1. A light extinction layer 5 is formed on the metallic wiring M1. The light extinction layer 5 is formed with the concentration distribution of optical density (OD value) and a contour of the light extinction layer 5 is formed in a curve having the irregularities.

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Inventors:

YAMAI TOMOYUKI

Application Number:

JP2013029677A

Publication Date:

September 04, 2014

Filing Date:

February 19, 2013

Export Citation:

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Assignee:

ALPS ELECTRIC CO LTD

International Classes:

G06F3/041; G06F3/044

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