A glass panel has a first sheet glass and a second sheet glass which are
disposed so that main surfaces thereof are made to face each other, an
interlayer film which joins the first sheet glass and the second sheet
glass together and an electronic tag disposed between the first sheet
glass and the second sheet glass. A shielding layer which interrupts the
transmission of light is formed on the first sheet glass. A side of the
electronic tag is colored such that an external color of a location where
the electronic tag is disposed is made difficult to be discriminated from
the color of the shielding layer when the location is seen through the
second sheet glass.