Metallic decorative part for vehicle display device, and vehicle display device

A vehicle display device comprising:

• a display unit that displays information relating to a vehicle;
• and
• a metallic decorative part that includes a substrate body made from a synthetic resin and that includes a first plurality of grooves in a surface of the substrate body, and a metal thin film that is formed of metal and deposited on the surface of the substrate body and that includes a second plurality of grooves on a surface of the metal thin film that correspond to the first plurality of grooves of the surface of the substrate body, wherein
• the second plurality of grooves are formed so that a width between bottom points of the second plurality of grooves that are adjacent to each other is larger than 0 and equal to or smaller than 3.0 μm, and a height of an apex between the adjacent grooves from lower one of the bottom points of the adjacent grooves is larger than 0 and equal to or smaller than 1.0 μm,
• the second plurality of grooves are formed so that a distribution width of the width is equal to or larger than 1.2 μm, and a distribution width of the height is equal to or larger than 0.3 μm, and
• the second plurality of grooves forms a radial mark pattern, and the radial mark pattern is formed by the second plurality of grooves extending radially from a preset reference point or a point nearby the preset reference point outwardly.