Intermediate film for laminated glasses, laminated glass, and method for manufacturing head up display system

A laminated glass serving as a head-up display,

• the laminated glass having a display region of the head-up display,
• the laminated glass comprising:
• a first lamination glass member;
• a second lamination glass member;
• and
• an interlayer,
• the interlayer film having a region for display corresponding to the display region of the head-up display,
• the interlayer film including an infrared reflective layer, a first resin layer containing a thermoplastic resin, and a second resin layer containing a thermoplastic resin,
• the infrared reflective layer being a multilayer resin film,
• the first resin layer being arranged on a first surface side of the infrared reflective layer, the second resin layer being arranged on a second surface side opposite to the first surface of the infrared reflective layer,
• the first lamination glass member being arranged on an outer side of the first resin layer, the second lamination glass member being arranged on an outer side of the second resin layer,
• at least one of a first laminate of the first lamination glass member and the first resin layer, and a laminate of the second resin layer and the second lamination glass member having a wedge angle of 0.1 mrad or more,
• at least one of the first resin layer and the second resin layer containing a coloring agent in the region for display.