The present invention pertains to a windshield that has a display region on which information is projected by means of light emitted from a head-up display device, the windshield being provided with:an outer glass plate; an inner glass plate disposed so as to face the outer glass plate; and an intermediate film interposed between the outer glass plate and the inner glass plate, wherein grid points are defined at a pitch of at most 20 mm within a measurement region, and, when wedge angle measurement is taken at the respective grid points using an interferometer in 240-by-240 pixels or more, the difference between the largest value and the smallest value of said wedge angles is not more than 0.32 mrad.