Laminated glass and head-up display system

Patent metadata

Field	Value
Publication number	US-12405465-B2
Application number	US-202418626900-A
Country	US
Kind code	B2
Filing date	Apr 4, 2024
Priority date	Oct 8, 2021
Publication date	Sep 2, 2025
Grant date	Sep 2, 2025

Abstract

The disclosure relates to a laminated glass and a head-up display system. The laminated glass includes a first transparent substrate, a second transparent substrate, and an adhesive film. The laminated glass has a light-transmitting region and a light-blocking region surrounding at least part of a periphery of the light-transmitting region. The adhesive film is disposed between the first transparent substrate and the first transparent substrate and configured to adhere the first transparent substrate and the second transparent substrate. The light-transmitting region has a visible light transmittance greater than or equal to 70%. The light-blocking region has a visible light transmittance less than or equal to 5%. The light-blocking region has a first region located below the light-transmitting region, and the first region has one or more first function display regions for displaying of image.

First claim

What is claimed is:

1. A laminated glass, comprising:
a first transparent substrate having a first surface and a second surface opposite the first surface;
a second transparent substrate having a third surface and a fourth surface opposite the third surface, wherein the third surface is closer to the second surface than the fourth surface; and
an adhesive film disposed between the second surface and the third surface and configured to adhere the first transparent substrate and the second transparent substrate;
wherein the laminated glass has a light-transmitting region and a light-blocking region surrounding at least part of a periphery of the light-transmitting region; and
wherein the light-transmitting region has a visible light transmittance greater than or equal to 70%, the light-blocking region has a visible light transmittance less than or equal to 5%, the light-blocking region has a first region located below the light-transmitting region, and the first region has one or more first function display regions for displaying of a first image.

2. The laminated glass of claim 1 , further comprising at least one flexible display screen in the first function display region, and the at least one flexible display screen is disposed between the second surface and the third surface and comprises at least one of a mini light-emitting diode (LED) display screen, a micro LED display screen, or an organic light-emitting diode (OLED) display screen.

3. The laminated glass of claim 1 , wherein the first function display region is configured to receive a projection light ray for forming the first image that is incident at an angle of 50° to 72°; and the first function display region has a reflectivity for the projection light ray incident greater than or equal to 4%.

4. The laminated glass of claim 3 , wherein the first function display region is part of the fourth surface, a proportion of S-polarized light in the projection light ray incident ranges from 60% to 100%, and the first function display region has the reflectivity for the projection light ray incident greater than or equal to 8%.

5. The laminated glass of claim 3 , further comprising a dielectric film disposed in the first function display region, the dielectric film being on the third surface or the fourth surface, wherein
a proportion of P-polarized light in the projection light ray incident ranges from 60% to 100%, and the first function display region has the reflectivity for the projection light ray incident greater than or equal to 8%; or
a proportion of S-polarized light in the projection light ray incident ranges from 60% to 100%, and the first function display region has the reflectivity for the projection light ray incident greater than or equal to 8%.

6. The laminated glass of claim 3 , further comprising a metal film disposed in the first function display region, the metal film being on the third surface, wherein a proportion of P-polarized light in the projection light ray incident ranges from 60% to 100%, and the first function display region has the reflectivity for the projection light ray incident greater than or equal to 6%.

7. The laminated glass of claim 3 , further comprising a laminated polyethylene terephthalate (PET) disposed in the first function display, wherein a proportion of P-polarized light in the projection light ray incident ranges from 60% to 100%, and the first function display region has the reflectivity for the projection light ray incident greater than or equal to 10%.

8. The laminated glass of claim 2 , further comprising a dark ink layer or a colored polymer film disposed in the light-blocking region, wherein the dark ink layer is disposed on at least one of the second surface or the third surface, and the colored polymer film is disposed between the second surface and the third surface; and the flexible display screen is closer to the fourth surface than the dark ink layer or the colored polymer film.

9. The laminated glass of claim 3 , further comprising a dark ink layer or a colored polymer film disposed in the light-blocking region, wherein the dark ink layer is disposed on at least one of the second surface or the third surface, and the colored polymer film is disposed between the second surface and the third surface; and the first function display region is closer to the fourth surface than the dark ink layer or the colored polymer film.

10. The laminated glass of claim 1 , wherein the fourth surface has a colored region, an upper boundary of the first region is at least 80 mm higher than an upper boundary of the colored region located in the first region.

11. The laminated glass of claim 1 , wherein the light-transmitting region has one or more second function display regions, and the one or more second function display regions are configured for displaying of a second image.

12. The laminated glass of claim 11 , wherein a projection display distance for the first image ranges from 0.5 m to 5 m, and a projection display distance for the second image is greater than or equal to 7.5 m.

13. The laminated glass of claim 12 , wherein a projection light ray for forming the first image is incident on the one or more first function display regions at an angle of 50° to 72°, and the one or more first function display regions have a reflectivity, for the projection light ray for forming the first image, greater than or equal to 4%; and a projection light ray for forming the second image is incident on the one or more second function display regions at an angle of 50° to 72°, and the one or more second function display regions have a reflectivity, for the projection light ray for forming the second image, greater than or equal to 8%.

14. The laminated glass of claim 11 , further comprising a dielectric film, wherein the dielectric film is at least located in the one or more second function display regions.

15. The laminated glass of claim 14 , wherein the dielectric film is further located in the one or more first function display regions.

16. The laminated glass of claim 14 , wherein the adhesive film is of uniform thickness, a proportion of P-polarized light in the projection light ray for forming the second image ranges from 60% to 100%, the dielectric film is a laminated structure formed by a high refractive index layer and a low refractive index layer stacked with each other or comprises at least one metal layer or laminated PET, and the one or more second function display regions have the reflectivity, for the projection light ray for forming the second image incident at an angle of 50° to 72°, greater than or equal to 10%.

17. The laminated glass of claim 14 , wherein the adhesive film is of uniform thickness or wedge-shaped, the dielectric film is disposed on the fourth surface and is an anti-reflective film, and the second function display region is part of the first surface; a proportion of S-polarized light in the projection light ray for forming the second image ranges from 60% to 100%, and the anti-reflective film has a reflectivity for the projection light ray for forming the second image less than or equal to 6%; and the one or more second function display regions have the reflectivity, for the projection light ray for forming the second image incident at an angle of 50° to 72°, greater than or equal to 8%.

18. The laminated glass of claim 14 , wherein the adhesive film is wedge-shaped, a proportion of S-polarized light in the projection light ray for forming the second image ranges from 60% to 100%; the dielectric film is a laminated structure disposed on the third su

Assignees

• Fuyao Glass Ind Group Co Ltd

Inventors

• Jiang Bingming
• Chen Wei
• Peng Jian
• Guan Jinliang
• Li Weijun

Classifications

• B32B17/10779

  containing polyester · CPC title

• B32B2605/08

  Cars · CPC title

• B32B2457/206

  Organic displays, e.g. OLED · CPC title

• B60K35/231

  characterised by their arrangement or structure for integration into vehicles · CPC title

• B32B17/10568

  varying in thickness · CPC title