<p>A wired circuit board (1) includes a conductive pattern (6), and an insulating layer (5) covering the conductive pattern (6) and having a transmittance of not more than 30% with respect to a wavelength in a range of 600 to 680 nm.
Another wired circuit board comprises an insulating layer covering the conductive pattern and having a transmittance of not less than 55% with respect to a wavelength in a range of 500 to 580 nm.
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