CN-121989644-A - Vehicle window glass and vehicle window glass assembly

Abstract

The application provides a window glass and a window glass assembly. The vehicle window glass comprises a glass substrate, wherein the glass substrate is provided with a signal transmission area, the glass substrate provided with the signal transmission area is bent towards the direction of the outside of a vehicle, the signal transmission area is provided with a first preset point and a second preset point which are distributed along the height direction of the glass substrate, and a preset connecting line for connecting the first preset point and the second preset point, the length of the preset connecting line is L, the distance between the preset connecting line and the glass substrate is h, and the glass substrate meets the conditions that L=100 mm and h is less than or equal to 0.3906mm. The application improves the MTF value of the optical sensor by limiting the parameters of the glass substrate related to the signal transmission area, so that the MTF value of the optical sensor is closer to an ideal value 1, thereby reducing or even avoiding the problems of low contrast, image blurring and image distortion of an image shot by the optical sensor at a limit focal length, and improving the recognition performance of the optical sensor.

Inventors

• DU XIAOPING
• REN PENG
• ZHANG QI
• CAI FENG

Assignees

• 福耀玻璃工业集团股份有限公司

Dates

Publication Date

20260508

Application Date

20260204

Claims (13)

1. 1. A window glass mounted on a vehicle, the window glass comprising a glass substrate having a signal transmission region, the glass substrate provided with the signal transmission region being bent in a direction toward an outside of the vehicle; The signal transmission area is provided with a first preset point and a second preset point which are distributed along the height direction of the glass substrate, and a preset connecting line for connecting the first preset point and the second preset point, wherein the length of the preset connecting line is L, the distance between the preset connecting line and the glass substrate is h, and the glass substrate meets the conditions that L=100 mm and h is less than or equal to 0.3906mm.
2. 2. The vehicle glazing of claim 1, wherein the glass substrate comprises a first glass sheet, an intermediate bonding layer, and a second glass sheet laminated in that order; the glass substrate further comprises a shielding layer, wherein the shielding layer is arranged on one side of the first glass plate facing the middle bonding layer and/or one side of the second glass plate facing away from the middle bonding layer, and the shielding layer is arranged around the signal transmission area.
3. 3. The vehicle window glass according to claim 2, wherein the shielding layer includes an upper edge portion, a left edge portion and a right edge portion provided on opposite sides of the upper edge portion, the upper edge portion being located above the signal transmission region, the left edge portion being located on the left side of the signal transmission region, and the right edge portion being located on the right side of the signal transmission region.
4. 4. The vehicle glazing of claim 3, wherein the barrier layer further comprises a lower edge portion connecting the left and right edge portions, the lower edge portion being located below the signal transmission region.
5. 5. The vehicle glazing of claim 3, wherein the barrier layer comprises a first barrier sub-layer disposed on a side of the first glass sheet facing the intermediate bonding layer, a second barrier sub-layer disposed on a side of the second glass sheet facing away from the intermediate bonding layer, the glass substrate satisfying ((c+5) x d)/((a+5) x b) 0.3 or more; Wherein, in the first shielding sub-layer, a is the interval between the upper edge part and the end part of the first shielding sub-layer far away from the upper edge part, and b is the interval between the left edge part and the right edge part; In the second shielding sub-layer, c is a distance between the upper edge portion and an end portion of the second shielding sub-layer, which is far away from the upper edge portion, and d is a distance between the left edge portion and the right edge portion.
6. 6. The vehicle window glass according to claim 5, wherein a distance a between the upper edge portion and an end portion of the first shielding sub-layer away from the upper edge portion is 50mm to 300mm; and/or the distance b between the left side part and the right side part is 150 mm-450 mm; And/or, a distance c between the upper edge and the end part of the second shielding sub-layer far away from the upper edge is 50 mm-300 mm; And/or, the distance d between the left side part and the right side part is 150 mm-450 mm.
7. 7. The vehicle glazing of claim 5, wherein the first blocking sub-layer matches the shape of the second blocking sub-layer, the first blocking sub-layer covering the second blocking sub-layer.
8. 8. The vehicle window glass according to claim 3, wherein a distance between the upper edge part and the signal transmission area is G1, a distance between the left edge part and the signal transmission area is G2, a distance between the right edge part and the signal transmission area is G3, and the glass substrate satisfies that G1 is more than or equal to 4/sin beta, G2 is more than or equal to 2mm, G3 is more than or equal to 2mm, wherein beta is an included angle between a detection view central axis of the optical sensor and the glass substrate, and G1 is in mm.
9. 9. The vehicle window glass according to claim 4, wherein the distance between the lower edge part and the signal transmission area is G4, the glass substrate is G4 not less than 4/sin beta, wherein beta is an included angle between a detection visual field central axis of the optical sensor and the glass substrate, and the unit of G4 is mm.
10. 10. The vehicle glazing according to claim 8 or 9, wherein the angle β between the central axis of the detection field of view of the optical sensor and the glass substrate is 15 ° to 70 °.
11. 11. The vehicle glazing of claim 2, wherein the first glass sheet of the signal transmission region has a thickness T1 and the second glass sheet of the signal transmission region has a thickness T2, the glass substrate satisfying T1/T2. Gtoreq.0.762; And/or the thickness of the glass substrate of the signal transmission area is 3.96 mm-7.16 mm.
12. 12. The vehicle glazing of claim 1, wherein the signal transmission region is configured to cooperate with an optical sensor having a modulation transfer function MTF of 0.15 to 0.6.
13. 13. A glazing assembly comprising an optical sensor as claimed in any one of claims 1 to 12, the optical sensor being provided on a side of the glass substrate facing the interior of the vehicle, the optical sensor being provided in correspondence with the signal transmission region.

Description

Vehicle window glass and vehicle window glass assembly Technical Field The application belongs to the technical field of window glass, and particularly relates to window glass and a window glass assembly. Background With the continuous development of technology, intelligent driving becomes a subsequent important development direction, and an imaging system comprising an optical sensor is usually integrated on a front windshield window to acquire image information of an external environment. However, the image shot by the optical sensor at the limit focal length is easy to have low contrast, image blurring and image distortion, so that the condition that the image distortion is unrecognizable is caused, the test result of the modulation transfer function (Modulation Transfer Function, MTF) of the optical sensor is poor, the MTF of the modulation transfer function of the optical sensor matched with the traditional glass in the related technology is less than 0.1, the driving reliability of a vehicle is reduced, and the use safety of a user is reduced. Disclosure of Invention In view of the above, a first aspect of the present application provides a window glass to be mounted on a vehicle, the window glass including a glass substrate having a signal transmission region, the glass substrate provided with the signal transmission region being bent in a direction away from an outside of the vehicle; The signal transmission area is provided with a first preset point and a second preset point which are distributed along the height direction of the glass substrate, and a preset connecting line for connecting the first preset point and the second preset point, wherein the length of the preset connecting line is L, the distance between the preset connecting line and the glass substrate is h, and the glass substrate meets the conditions that L=100 mm and h is less than or equal to 0.3906mm. The glass substrate comprises a first glass plate, an intermediate bonding layer and a second glass plate which are sequentially laminated; the glass substrate further comprises a shielding layer, wherein the shielding layer is arranged on one side of the first glass plate facing the middle bonding layer and/or one side of the second glass plate facing away from the middle bonding layer, and the shielding layer is arranged around the signal transmission area. The shielding layer comprises an upper edge portion, a left edge portion and a right edge portion, wherein the left edge portion and the right edge portion are arranged on two opposite sides of the upper edge portion, the upper edge portion is located above the signal transmission area, the left edge portion is located on the left side of the signal transmission area, and the right edge portion is located on the right side of the signal transmission area. The shielding layer further comprises a lower edge part, the lower edge part is connected with the left edge part and the right edge part, and the lower edge part is positioned below the signal transmission area. The shielding layer comprises a first shielding sub-layer arranged on one side of the first glass plate facing the middle bonding layer and a second shielding sub-layer arranged on one side of the second glass plate facing away from the middle bonding layer, and the glass substrate meets the conditions that the ratio of (c+5) x d)/((a+5) x b) is more than or equal to 0.3; Wherein, in the first shielding sub-layer, a is the interval between the upper edge part and the end part of the first shielding sub-layer far away from the upper edge part, and b is the interval between the left edge part and the right edge part; In the second shielding sub-layer, c is a distance between the upper edge portion and an end portion of the second shielding sub-layer, which is far away from the upper edge portion, and d is a distance between the left edge portion and the right edge portion. The distance a between the upper edge and the end part of the first shielding sub-layer far away from the upper edge is 50-300 mm; and/or the distance b between the left side part and the right side part is 150 mm-450 mm; And/or, a distance c between the upper edge and the end part of the second shielding sub-layer far away from the upper edge is 50 mm-300 mm; And/or, the distance d between the left side part and the right side part is 150 mm-450 mm. The first shielding sub-layer is matched with the second shielding sub-layer in shape, and the first shielding sub-layer covers the second shielding sub-layer. The distance between the upper edge part and the signal transmission area is G1, the distance between the left edge part and the signal transmission area is G2, the distance between the right edge part and the signal transmission area is G3, the glass substrate meets the requirements that G1 is more than or equal to 4/sin beta, G2 is more than or equal to 2mm, G3 is more than or equal to 2mm, wherein beta is an included angle between a detection vis