Vehicle windshield with two-dimensional code and manufacturing process thereof

Patent metadata

Field	Value
Publication number	US-10977533-B2
Application number	US-201816636507-A
Country	US
Kind code	B2
Filing date	Dec 25, 2018
Priority date	Dec 29, 2017
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

A vehicle windshield with a two-dimensional code includes a first glass, a second glass and an intermediate film provided between the first glass and the second glass. The first glass includes a first surface facing the exterior of a vehicle and a second surface adhered to the intermediate film, while the second glass includes a third surface adhered to the intermediate film and a fourth surface facing the interior of the vehicle. Black enamel paint is printed on the second surface and/or the fourth surface. The second surface or the fourth surface is provided with a two-dimensional code printed with enamel paint at a position corresponding to the black enamel paint. The two-dimensional code contains unique information of the glass and/or the vehicle.

First claim

The invention claimed is:

1. A vehicle windshield with a two-dimensional code, the vehicle windshield comprising a first glass, a second glass and an intermediate film provided between the first glass and the second glass, wherein the first glass comprises a first surface facing the exterior of a vehicle and a second surface adhered to the intermediate film, while the second glass comprises a third surface adhered to the intermediate film and a fourth surface facing the interior of the vehicle; and
wherein black enamel paint is printed on the second surface and/or the fourth surface; the second surface or the fourth surface is provided with a two-dimensional code printed with enamel paint at a position corresponding to the black enamel paint; and the two-dimensional code contains unique information of the glass and/or the vehicle.

2. The vehicle windshield according to claim 1 , wherein the enamel paint comprises black enamel paint or silver paste.

3. The vehicle windshield according to claim 2 , wherein the two-dimensional codes printed in different vehicle windshields are different.

4. The vehicle windshield according to claim 1 , wherein the black enamel paint on the second surface and/or the fourth surface has different gloss from the enamel paint for printing the two-dimensional code.

5. The vehicle windshield according to claim 4 , wherein the two-dimensional codes printed in different vehicle windshields are different.

6. The vehicle windshield according to claim 1 , wherein the two-dimensional codes printed in different vehicle windshields are different.

7. A process for manufacturing a vehicle windshield with a two-dimensional code, the vehicle windshield comprising a first glass, a second glass and an intermediate film provided between the first glass and the second glass, wherein the first glass comprises a first surface facing the exterior of a vehicle and a second surface adhered to the intermediate film, while the second glass comprises a third surface adhered to the intermediate film and a fourth surface facing the interior of the vehicle, and wherein the process comprises the following steps:
a. providing a first glass and a second glass which are cut and shaped;
b. printing black enamel paint on the second surface and/or the fourth surface;
c. printing a two-dimensional code with enamel paint on the second surface or the fourth surface at a position corresponding to the black enamel paint, the two-dimensional code contains unique information of the glass and/or the vehicle;
d. molding the first glass and the second glass in a thermal-bending furnace; and
e. sandwiching an intermediate film between the first glass and the second glass which are thermal-bended and molded to obtain a finished product.

8. The process according to claim 7 , wherein the enamel paint comprises black enamel paint or silver paste.

9. The process according to claim 8 , wherein the black enamel paint on the second surface and/or the fourth surface has different gloss from the enamel paint for printing the two-dimensional code.

10. The process according to claim 9 , further comprising a step of pre-sintering the first glass and/or the second glass prior to the step d.

11. The process according to claim 8 , further comprising a step of pre-sintering the first glass and/or the second glass prior to the step d.

12. The process according to claim 7 , further comprising a step of pre-sintering the first glass and/or the second glass prior to the step d.

13. The process according to claim 12 , wherein, in step c, different two-dimensional codes are printed for different vehicle windshields.

Assignees

• Saint Gobain

Inventors

• Shi Ce
• Wu Huanhuan

Classifications

• G06K19/06037 Primary

  multi-dimensional coding · CPC title

• B60J1/02

  arranged at the vehicle front {, e.g. structure of the glazing, mounting of the glazing (on windscreen mounted antenna wire H01Q1/1271)} · CPC title

• B32B17/10036

  comprising two outer glass sheets · CPC title

• B60J1/00 Primary

  Windows; Windscreens; Accessories therefor (B60J10/00 takes precedence; air curtains instead of windows B60J9/04 {; sealing strips for windshields B60J10/70; sealing sash guides for sliding window panes B60J10/74; glass partitions inside vehicles to protect occupants against personal attack B60R21/12}) · CPC title

• B32B2315/08

  Glass · CPC title