Abstract: Head-up display (HUD) glass and a head-up display system are provided in the disclosure. The Head-up display glass includes an outer surface and an inner surface opposite to the outer surface. A transparent nanofilm used for reflecting P-polarized light is disposed on the inner surface, and the transparent nanofilm includes a first high-refractive-index-layer, a second high-refractive-index-layer, a first low-refractive-index-layer, a third high-refractive-index-layer, and a second low-refractive-index-layer which are sequentially stacked on the inner surface. A refractive index of each of the first high-refractive-index-layer, the second high-refractive-index-layer, and the third high-refractive-index-layer is greater than 1.8, and a refractive index of each of the first low-refractive-index-layer and the second low-refractive-index-layer is less than or equal to 1.8.

Abstract: This disclosure relates to the field of head-up display (HUD) technology, and more particularly to an HUD system with a transparent nano film for image display. Specifically, an HUD system including ultra-thin glass is provided in the disclosure. The HUD system includes a projection light source, and laminated glass, and a transparent nano film. The transparent nano film includes at least two metal layers. The projection light source is configured to generate P-polarized light. The laminated glass provided with the transparent nano film has a maximum reflectivity Rmax and a minimum reflectivity Rmin for the P-polarized light that has the incident angle ranging from 45° to 72°, where Rmax/Rmin ranges from 1.0 to 2.0.

Abstract: A Head up display system includes a projection light source, laminated glass, and a transparent nano film. The transparent nano film includes at least one laminated structure consisting of a high refractive-index layer and a low refractive-index layer, where the high refractive-index layer and the low refractive-index layer is deposited sequentially outwards from the surface of the inner glass pane. The projection light source is configured to generate P-polarized light. A ratio of near-red light reflectivity R1 at wavelengths ranging from 580 nm to 680 nm of the laminated glass with the transparent nano film to near-blue light reflectivity R2 at wavelengths ranging from 420 nm to 470 nm of the laminated glass with the transparent nano film is R1/R2=1.0˜2.0.