CN114643837A - Sound-insulation laminated glass for head-up display and head-up display system - Google Patents
Sound-insulation laminated glass for head-up display and head-up display system Download PDFInfo
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- CN114643837A CN114643837A CN202011497016.XA CN202011497016A CN114643837A CN 114643837 A CN114643837 A CN 114643837A CN 202011497016 A CN202011497016 A CN 202011497016A CN 114643837 A CN114643837 A CN 114643837A
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- 239000005340 laminated glass Substances 0.000 title claims abstract description 56
- 238000009413 insulation Methods 0.000 title claims abstract description 29
- 229920005989 resin Polymers 0.000 claims abstract description 127
- 239000011347 resin Substances 0.000 claims abstract description 127
- 239000011521 glass Substances 0.000 claims abstract description 33
- 239000010410 layer Substances 0.000 claims description 212
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 8
- 239000012792 core layer Substances 0.000 claims description 7
- 239000004014 plasticizer Substances 0.000 claims description 5
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- YZASAXHKAQYPEH-UHFFFAOYSA-N indium silver Chemical compound [Ag].[In] YZASAXHKAQYPEH-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
- B60J1/001—Double glazing for vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0815—Acoustic or thermal insulation of passenger compartments
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Acoustics & Sound (AREA)
- Joining Of Glass To Other Materials (AREA)
- Instrument Panels (AREA)
Abstract
The invention provides a sound-insulation laminated glass for head-up display and a head-up display system. The sound insulation laminated glass comprises two bent glass plates and an intermediate layer clamped between the two bent glass plates, wherein the intermediate layer comprises a first resin layer, a second resin layer and a sound insulation layer clamped between the first resin layer and the second resin layer, the intermediate layer is of a wedge-shaped structure and comprises a top end and a bottom end opposite to the top end, and the thickness of the top end is larger than that of the bottom end; at least one of the first resin layer and the second resin layer is in a wedge-shaped structure, the second resin layer comprises a sub-base end, the sub-base end is a part of the base end, and the thickness of the second resin layer in an area within 600mm from the sub-base end is less than 0.3 mm. The sound-insulation laminated glass for head-up display and the head-up display system provided by the invention can meet the requirements of sound insulation effect, improve the head-up display quality and ensure the head-up display effect.
Description
Technical Field
The invention relates to the field of automobile glass, in particular to sound-insulation laminated glass for head-up display (HUD) and a head-up display system.
Background
Head-Up Display (HUD) systems are increasingly configured on automobiles, and are used for displaying important driving information such as speed, engine revolution, oil consumption, tire pressure, navigation and information of external intelligent equipment in the visual field of a driver on a front windshield in real time, so that the driver can see the driving information without lowering Head, the attention of the driver to the front road is avoided, and the driving safety and the driving experience are greatly enhanced.
The front windshield of the automobile is laminated glass, and generally comprises at least two curved glass plates with a certain curvature, wherein a thermoplastic polymer film (such as polyvinyl butyral (PVB)) is sandwiched between the two curved glass plates, light emitted by a projection light source of a head-up display system is reflected when passing through two surfaces of the laminated glass, which are in contact with air, and reflected images on the two surfaces are shifted to form two double images which are mutually interfered, so that the definition of a projection display image is greatly limited. In order to solve the double image problem of the head-up display system, the patents US5013134, DE19535053a1, US20020008926a1 and the like use a wedge-shaped polymer film as an intermediate layer of the laminated glass, so that the thickness of the laminated glass changes in a wedge shape, thereby substantially overlapping the reflected images on the two surfaces seen by the driver, and finally, the double image problem is largely eliminated.
In recent years, the display content of head-up display is more and more, the display area is larger and the display color is full, and the traditional wedge-shaped polymer membrane as the interlayer of the laminated glass can not meet the requirements gradually, and can not meet the dynamic display requirement of the augmented reality head-up display (AR-HUD).
Disclosure of Invention
The invention aims to provide sound-insulation laminated glass for head-up display, which can improve the head-up display quality while meeting the sound-insulation effect and ensure the head-up display effect.
The invention provides sound-insulation laminated glass for head-up display, which comprises two bent glass plates and an intermediate layer clamped between the two bent glass plates, wherein the intermediate layer is of a wedge-shaped structure and comprises a top end and a bottom end opposite to the top end, and the thickness of the top end of the intermediate layer is larger than that of the bottom end of the intermediate layer; the second resin layer includes a subbottom end which is a part of the bottom end;
at least one of the first resin layer and the second resin layer is in a wedge-shaped structure, and the thickness of the second resin layer in a region within 600mm from the sub-bottom end is less than 0.3 mm.
Wherein a thickness of the second resin layer in a region within 600mm from the sub-base end is less than or equal to 0.28 mm.
Wherein the thickness of the second resin layer in a region within 600mm from the sub-base end is less than or equal to 0.25 mm.
The second resin layer further comprises a sub-top end, the sub-top end is a part of the top end, the second resin layer is of a rectangular structure with equal thickness, or the second resin layer is of a wedge-shaped structure, and the thickness of the sub-top end of the second resin layer is larger than that of the sub-bottom end.
The second resin layer further comprises a sub-top end, the sub-top end is a part of the top end, the second resin layer is of a wedge-shaped structure, and the thickness of the sub-top end is smaller than that of the sub-bottom end.
Wherein the thickness of the second resin layer is less than 0.3 mm; alternatively, less than or equal to 0.28 mm; alternatively, less than or equal to 0.25 mm.
The first resin layer is of a wedge-shaped structure and comprises a sub-bottom end and a sub-top end, the thickness of the sub-top end of the first resin layer is larger than that of the sub-bottom end of the first resin layer, and the thickness of the sub-bottom end of the first resin layer is larger than or equal to 0.6 mm.
Wherein the first resin layer is a wedge structure having a first wedge angle, the second resin layer is a wedge structure having a second wedge angle, and the first wedge angle is at least 2 times the second wedge angle.
The soundproof layer is of a rectangular structure with equal thickness or a wedge-shaped structure with a third wedge angle, and the third wedge angle is smaller than or equal to 0.15 mard.
Wherein the first wedge angle and/or the second wedge angle is constant or variable.
Wherein the sound insulation layer has a hardness less than the first resin layer and the second resin layer.
The sound insulation layer comprises a first outer layer, a core layer and a second outer layer which are sequentially stacked, the first outer layer and the second outer layer are polyvinyl butyral added with a plasticizer, and the core layer is polyvinyl butyral or polyethylene terephthalate.
The sound insulation laminated glass is provided with at least one head-up display area in an area within 600mm from the bottom end of the middle layer, and the diopter of the head-up display area is smaller than or equal to 150 mdpt.
Wherein a transparent conductive layer or an antireflection layer is provided on at least one surface of at least one of the curved glass plates.
The embodiment of the invention also provides a head-up display system which comprises a projection light source, wherein the projection light source is used for generating light beams comprising display information, and the head-up display system is characterized by also comprising the sound-insulation laminated glass, wherein at least one head-up display area is arranged on the sound-insulation laminated glass, and the light beams enter the head-up display area at an incident angle of 50-75 degrees.
In summary, the sound-insulating laminated glass for head-up display provided by the invention has the advantages that the intermediate layer is of a multilayer structure in which the first resin layer, the sound-insulating layer and the second resin layer are sequentially laminated, and the thickness of the second resin layer in the area within 600mm from the sub-bottom end of the second resin layer is less than 0.3mm, so that the sound-insulating laminated glass can improve the head-up display quality while meeting the sound-insulating effect, and ensure the head-up display effect; moreover, the second resin layer is thin and is asymmetrically arranged with the first resin layer, so that the defects that indentation and the like are possibly generated on the surface of the sound insulation layer when the middle layer is produced by an extrusion process can be reduced, the quality of head-up display images is improved, and even the dynamic display requirement of the AR-HUD is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a sound-insulating laminated glass provided by the present invention;
FIG. 2 is an enlarged cross-sectional view of the interlayer of the sound-insulating laminated glass shown in FIG. 1;
FIG. 3 is a cross-sectional view of an interlayer for an acoustic insulating laminated glass according to another embodiment of the present invention;
fig. 4 is a schematic view of a sound-insulating laminated glass having a head-up display region according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a sound-insulating laminated glass 100 for a head-up display, which includes two curved glass plates 10 and 20, respectively, and an intermediate layer 30 sandwiched between the two curved glass plates. The intermediate layer 30 includes a first resin layer 31, a second resin layer 32, and a soundproof layer 33 sandwiched between the first resin layer 31 and the second resin layer 32. The intermediate layer 30 is wedge-shaped and includes a top end 34 and a bottom end 35 opposite the top end 34, the top end 34 having a thickness greater than a thickness of the bottom end 35. At least one of the first resin layer 31 and the second resin layer 32 is a wedge-shaped structure, the second resin layer 32 includes a sub-bottom end 322, the sub-bottom end 322 is a part of the bottom end 35, and a thickness of a region of the second resin layer 32 within 600mm from the sub-bottom end 322 is less than 0.3 mm.
In the present embodiment, by providing the intermediate layer 30 in a wedge-shaped configuration, the thickness of the top end 34 is greater than that of the bottom end 35, so that the image projected onto the soundproof laminated glass 100 does not double. Meanwhile, at least one of the first resin layer 31 and the second resin layer 32 is in a wedge-shaped structure, and the thickness of the area of the second resin layer 32 within 600mm from the sub-bottom end 322 in the height direction is less than 0.3mm, so that the sound-insulating laminated glass 100 can improve the head-up display quality while meeting the sound-insulating effect, for example, the area of the head-up display area is increased, richer display contents are contained, and even full color display is realized, i.e., the overall display effect can be improved.
In the case where the acoustic laminated glass is used, for example, as an automobile glass, the top end 34 corresponds to the top of the acoustic laminated glass when the acoustic laminated glass is mounted on a vehicle, and the bottom end 35 corresponds to the bottom of the acoustic laminated glass when the acoustic laminated glass is mounted on a vehicle. The direction from the bottom end 35 to the top end 34 is a height direction, and the direction in which the first resin layer 31, the second resin layer 32, and the sound insulation layer 33 are laminated is a thickness direction; the region of the second resin layer 32 within 600mm from the sub-bottom end 322 thereof means the distance in the height direction, and the thickness of less than 0.3mm means the thickness in the thickness direction. If the second resin layer 32 has a rectangular structure with an equal thickness, the thickness of the second resin layer 32 is constant in a region within 600mm from the sub-bottom end 322 thereof, and the thickness thereof is less than 0.3 mm; if the second resin layer 32 has a wedge-shaped structure and the thickness of the second resin layer 32 varies in a region within 600mm from the sub-bottom end 322 thereof, it can be understood that the maximum thickness of the region is less than 0.3 mm.
Specifically, referring to fig. 1, the inner glass plate 10 and the outer glass plate 20 have a uniform thickness in the height direction. The inner glass plate 10 comprises a first surface 101 and a second surface 102 and the outer glass plate 20 comprises a third surface 201 and a fourth surface 202. The second surface 102 and the third surface 201 are attached to opposite surfaces of the interlayer 30, sandwiching the interlayer 30 between the inner glass pane 10 and the outer glass pane 20, which may also be understood as a laminate arrangement of the inner glass pane 10, the interlayer 20 and the outer glass pane 20. Wherein, the second surface 102 is not parallel to the third surface 201, and the section of the sound-proof laminated glass 100 is wedge-shaped.
Referring to fig. 2, the intermediate layer 30 has a multi-layer structure, and it can be understood that the first resin layer 31, the sound insulation layer 33, and the second resin layer 32 are sequentially stacked. The first resin layer 31 is attached to the third surface 201 of the outer glass panel 20, the second resin layer 32 is attached to the second surface 102 of the inner glass panel 10, and the soundproof layer 33 is sandwiched between the first resin layer 31 and the second resin layer 32. It is understood that the present invention can also be arranged such that the first resin layer 31 is attached to the second surface 102 of the inner glass sheet 10 and the second resin layer 32 is attached to the third surface 201 of the outer glass sheet 20.
In this embodiment, the first resin layer 31 includes a first sub-top end 311 and a first sub-bottom end 312, the second resin layer 32 includes a second sub-top end 321 and a second sub-bottom end 322, and the soundproof layer 33 includes a third sub-top end 331 and a third sub-bottom end 332. The first sub-top end 311, the second sub-top end 321, and the third sub-top end 331 form the top end 34 of the middle layer 30, the first sub-bottom end 312, the second sub-bottom end 322, and the third sub-bottom end 332 form the bottom end 35 of the middle layer 30, the first sub-bottom end 312, the second sub-bottom end 322, and the third sub-bottom end 332 may form a planar bottom end or a curved bottom end, and the first sub-top end 311, the second sub-top end 321, and the third sub-top end 331 may form a planar top end or a curved top end, which is set according to actual needs, and is not limited in the present invention; the bottom end of the middle layer 30 is not limited to only the first sub-bottom end 312, the second sub-bottom end 322 and the third sub-bottom end 332; the top end of the intermediate layer 30 is not limited to only the first sub-top 311, the second sub-top 321, and the third sub-top 331. The top end 34 of the intermediate layer 30 has a thickness greater than the thickness of the bottom end 35, and the intermediate layer 30 has a wedge-shaped cross-section in this embodiment. The top end 34 and the bottom end 35 refer to the end portions of both edges of the intermediate layer 30 in the height direction, and the end portions may be understood as end surfaces, and the end thickness dimension may be understood as the dimension of the end surfaces in the thickness direction. The first sub-top end 311 and the first sub-bottom end 312 of the first resin layer 31, and the second sub-top end 321 and the second sub-bottom end 322 of the second resin layer 32 are the same as the top end and the bottom end of the intermediate layer 30, and if the cross section is wedge-shaped, the first sub-top end 311 and the first sub-bottom end 312, and the second sub-top end 321 and the second sub-bottom end 322 may be understood as end faces, and the end thickness dimension may be understood as the dimension of the end faces in the thickness direction.
Further, the first resin layer is a wedge-shaped structure and comprises a sub-bottom end and a sub-top end, and the thickness of the sub-bottom end of the first resin layer is greater than or equal to 0.6 mm. Specifically, referring to fig. 2, the first resin layer 31 has a wedge-shaped structure, and the cross section of the wedge-shaped structure is a sub-bottom end, i.e., the first sub-bottom end 312, and the sub-top end, i.e., the first sub-top end 311. The thickness of the first sub-top end 311 of the first resin layer 31 is greater than the thickness of the first sub-bottom end 312, and the thickness of the sub-bottom end 312 of the first resin layer 31 is greater than or equal to 0.6 mm. Wherein the thickness refers to a dimension in the thickness direction. This ensures that the intermediate layer 30 has a total thickness, and the intermediate layer 30 has a deformation preventing property to prevent the acoustic laminated glass 100 from being optically deformed. Moreover, the second resin layer is thin and is asymmetrically arranged with the first resin layer, so that the defects that indentation and the like are possibly generated on the surface of the sound insulation layer when the middle layer is produced by an extrusion process can be reduced, the quality of head-up display images is improved, and even the dynamic display requirement of the AR-HUD is met.
Further, the second resin layer 32 further includes a sub-top end, the sub-top end is a part of the top end 34, the second resin layer 32 has a rectangular structure with equal thickness, or the second resin layer 32 has a wedge-shaped structure and the thickness of the sub-top end is greater than that of the sub-bottom end.
In this embodiment, the second resin layer 32 has a wedge-shaped structure, and the thickness of the sub-top end is greater than that of the sub-bottom end. The sub-top end is the second sub-top end 321, and the sub-bottom end is the second sub-bottom end 322. The thickness of the second sub-top ends 321 is greater than that of the second sub-bottom ends 322, and the second resin layer 32 has a wedge-shaped structure. In other embodiments, the second resin layer 32 has a rectangular structure with an equal thickness, and the thickness of the second sub-top end 321 of the second resin layer 32 is equal to that of the second sub-bottom end 322.
In another embodiment, the second resin layer 32 has a thickness of less than or equal to 0.28mm in a region within 600mm from the sub-bottom end 322.
In another embodiment, the thickness of the second resin layer 32 in a region within 600mm from the sub-bottom end 322 is less than or equal to 0.25mm, even less than or equal to 0.2mm, and even less than or equal to 0.15 mm.
In this embodiment, the second resin layer 32 has a wedge-shaped structure, the thickness of the second sub-top end 321 is greater than that of the second sub-bottom end 322, and the maximum thickness of the second resin layer 32 is the thickness of the second sub-top end 321. Further, the thickness of the second sub-tip 321 is less than 0.3 mm; the thickness of the second sub-tip 321 is less than or equal to 0.28 mm; alternatively, less than or equal to 0.25 mm. In the present embodiment, the thickness of the second sub-tip 321 of the second resin layer 32 is 0.25mm, that is, the maximum thickness of the second resin layer 32 is 0.25 mm.
Further, the soundproof layer 33 has a rectangular structure with equal thickness, or the soundproof layer 33 has a wedge-shaped structure. Referring to fig. 2, in the present embodiment, the sound insulation layer 33 is a rectangular structure with equal thickness, and the thickness of the third sub-top end 331 is the same as the thickness of the third sub-bottom end 332. In other embodiments, the soundproof layer 33 has a wedge-shaped structure with a third wedge angle, the third sub-top end 331 may have a thickness greater than that of the third sub-bottom end 332, and the third wedge angle is less than or equal to 0.15mard, which may prevent the soundproof laminated glass from generating double images.
Further, the sound insulation layer 33 has a hardness smaller than the first resin layer 31 and the second resin layer 32. That is, the first resin layer 31 and the second resin layer 32 located at both sides of the soundproof layer 33 have high hardness. The first resin layer 31 and the second resin layer 32 having a high hardness have a supporting effect on the soundproof layer 33 having a low hardness, and have a high strain retention property, and the intermediate layer 30 can be effectively prevented from being deformed.
In this embodiment, the sound insulation layer 33 may be a single layer, or may include a first outer layer, a core layer, and a second outer layer (not shown) stacked in this order, where the first outer layer and the second outer layer are polyvinyl butyral with a plasticizer added thereto, and the core layer is polyvinyl butyral or polyethylene terephthalate. In this example, the core layer was polyvinyl butyral. The soundproof layer 33 is provided with a plurality of layers, so that the soundproof performance is better, and the soundproof layer is suitable for thinner curved glass plates.
Further, the first resin layer 31 is a wedge-shaped structure having a first wedge angle a, and the second resin layer 32 is a wedge-shaped structure having a second wedge angle B, wherein the first wedge angle a is at least 2 times larger than the second wedge angle B.
Further, the first wedge angle a and/or the second wedge angle B are constant or variable. The variable positions comprise linear variable positions or non-linear variable positions, and the variable first wedge angle A and the variable second wedge angle B can improve the quality of a head-up display image and meet the dynamic display requirement of the AR-HUD.
Referring to fig. 4, further, the acoustic laminated glass 100 has at least one head-up display area 200 in an area within 600mm from the bottom end 35 of the intermediate layer 30, and diopter of the head-up display area 200 is less than or equal to 150mdpt, so that display quality of a head-up display image can be further improved. In this embodiment, it is preferably not more than 100mdpt, more preferably not more than 75 mdpt. The diopter refers to the maximum allowable optical distortion value of the laminated glass, and the optical distortion result of the laminated glass in the inclined posture of the loading angle can be measured by a moire fringe method. In the present invention, L1 is the distance in the height direction between the top edge of the heads-up display area 200 and the bottom end 35 of the middle layer 30, and L1 may be 600mm at maximum.
A transparent conductive layer or an antireflection layer is provided on at least one surface of at least one of the curved glass plates. In this embodiment, the transparent conductive layer is disposed on the first surface 101, the second surface 102 of the inner glass plate 10 and/or the third surface 201 of the outer glass plate 20, and an antireflection layer is disposed on the first surface 101 of the inner glass plate 10.
The transparent conductive layer comprises a metal layer, a metal alloy layer or a metal oxide layer and is used for electric heating to defrost and demist, sunlight control to prevent sun or shade, low radiation to keep warm in winter and cool in summer and the like. The metal layer can be selected from gold (Au), silver (Ag), copper (Cu), aluminum (Al) or molybdenum (Mo); the metal alloy layer can be silver alloy, such as silver-copper alloy, silver-indium alloy and the like; the metal oxide layer may be Indium Tin Oxide (ITO), fluorine-doped tin oxide (FTO), aluminum-doped zinc oxide (AZO), antimony-doped tin oxide (ATO), or the like.
The antireflection layer includes a plurality of high refractive index layers and low refractive index layers alternately stacked for reducing reflection of visible light.
Referring to fig. 3, in the second embodiment of the present invention, unlike the above-mentioned embodiments, the second resin layer 32 has a wedge-shaped structure, and the thickness of the sub-top end is smaller than that of the sub-bottom end, that is, the thickness of the second sub-top end 321 is smaller than that of the second sub-bottom end 322, which is actually understood that the second resin layer 32 has an inverse wedge shape with a thin top and a thick bottom, and is arranged in an asymmetric structure with the first resin layer, so that the process problems such as air bubbles generated during the production of the sound-insulating laminated glass can be avoided. The sound-insulating laminated glass 100 with the reverse wedge-shaped second resin layer 32 can meet the head-up display requirement of a larger display area, improve the quality of a head-up display image and meet the dynamic display requirement of the AR-HUD; meanwhile, the intermediate layer 30 is guaranteed not to generate optical deformation particularly in the HUD display area, the stability of the whole structure can be better kept, and the process problems of air bubbles and the like generated in the production process of the sound insulation laminated glass are avoided.
Further, in the present embodiment, the first resin layer 31 has a wedge-shaped structure, and the thickness of the first sub-top end 311 is greater than that of the first sub-bottom end 312.
The thickness of the second resin layer 32 in a region within 600mm from the second sub-bottom end 322 is less than 0.3 mm; alternatively, less than or equal to 0.28 mm; alternatively, less than or equal to 0.25 mm.
Optionally, the thickness of the second sub-tip 321 of the second resin layer 32 is less than or equal to 0.2 mm; alternatively, less than or equal to 0.15 mm.
The first resin layer 31 and the second resin layer 32 are made of polyvinyl butyral, and the sound insulation layer 33 is made of polyvinyl butyral added with a plasticizer. The addition of the plasticizer to the polyvinyl butyral reduces the hardness, and therefore, in the present embodiment, the sound-insulating layer 33 has a hardness smaller than the first resin layer 31 and the second resin layer 32. The first resin layer 31 and the second resin layer 32 having a higher hardness have a supporting effect on the soundproof layer 33 having a lower hardness, and have a higher deformation retaining property, and can effectively prevent the intermediate layer 30 from being deformed.
The embodiment of the invention also provides a head-up display system which comprises a projection light source and the sound-insulation laminated glass, wherein the projection light source is used for generating light beams comprising display information, the sound-insulation laminated glass is provided with at least one head-up display area 200, and the light beams emitted by the projection light source are incident on the head-up display area at an incident angle of 50-75 degrees. The head-up display system comprises the sound insulation laminated glass, so that the head-up display effect can be ensured, and the dynamic display requirement of augmented reality head-up display (AR-HUD) is met.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (15)
1. A sound insulation laminated glass for head-up display comprises two bent glass plates and an intermediate layer clamped between the two bent glass plates, wherein the intermediate layer is of a wedge-shaped structure and comprises a top end and a bottom end opposite to the top end, and the thickness of the top end of the intermediate layer is larger than that of the bottom end of the intermediate layer; the second resin layer includes a subbottom end which is a part of the bottom end;
at least one of the first resin layer and the second resin layer is in a wedge-shaped structure, and the thickness of the second resin layer in a region within 600mm from the sub-bottom end is less than 0.3 mm.
2. The soundproof laminated glass according to claim 1, wherein the second resin layer has a thickness of 0.28mm or less in an area within 600mm from the child base end.
3. The soundproof laminated glass according to claim 1, wherein the second resin layer has a thickness of 0.25mm or less in a region within 600mm from the child base end.
4. The soundproof laminated glass according to claim 1, wherein the second resin layer further includes a sub-top end which is a part of the top end, the second resin layer has a rectangular structure with an equal thickness, or the second resin layer has a wedge-shaped structure and the sub-top end of the second resin layer has a thickness larger than that of the sub-bottom end.
5. The sound-insulating laminated glass according to claim 1, wherein the second resin layer further comprises a sub-top end, the sub-top end being a part of the top end, the second resin layer having a wedge-shaped structure and a thickness of the sub-top end being smaller than a thickness of the sub-bottom end.
6. The sound-insulating laminated glass according to claim 1, wherein the thickness of the second resin layer is less than 0.3 mm; alternatively, less than or equal to 0.28 mm; alternatively, less than or equal to 0.25 mm.
7. The soundproof laminated glass according to any one of claims 1 to 6, wherein the first resin layer has a wedge-shaped configuration including a sub-base end and a sub-top end, the sub-top end of the first resin layer has a thickness greater than a thickness of the sub-base end of the first resin layer, and the sub-bottom end of the first resin layer has a thickness greater than or equal to 0.6 mm.
8. The sound-insulating laminated glass according to any one of claims 1 to 6, wherein the first resin layer has a wedge-shaped structure having a first wedge angle, and the second resin layer has a wedge-shaped structure having a second wedge angle, and the first wedge angle is at least 2 times the second wedge angle.
9. The acoustic interlayer glass according to claim 8, wherein the acoustic insulating layer has a rectangular structure with an equal thickness or a wedge structure having a third wedge angle, and the third wedge angle is less than or equal to 0.15 mard.
10. The acoustic interlayer glass according to claim 8, wherein the first wedge angle and/or the second wedge angle is constant or variable.
11. The soundproof laminated glass according to claim 1, wherein the soundproof layer has a hardness smaller than the first resin layer and the second resin layer.
12. The sound-insulating laminated glass according to claim 11, wherein the sound-insulating layer comprises a first outer layer, a core layer and a second outer layer, which are sequentially laminated, the first outer layer and the second outer layer are polyvinyl butyral with a plasticizer added, and the core layer is polyvinyl butyral or polyethylene terephthalate.
13. The acoustic laminated glass according to claim 1, wherein the acoustic laminated glass has at least one head-up display area in an area within 600mm from a bottom end of the intermediate layer, the head-up display area having a diopter of 150mdpt or less.
14. The sound-insulating laminated glass according to claim 1, wherein a transparent conductive layer or an antireflection layer is provided on at least one surface of at least one of the curved glass plates.
15. A heads-up display system comprising a projection light source for generating a light beam comprising display information, and further comprising the acoustic laminated glass of any of claims 1-14 having at least one heads-up display region disposed thereon, the light beam being incident on the heads-up display region at an incident angle of 50 ° to 75 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011497016.XA CN114643837A (en) | 2020-12-17 | 2020-12-17 | Sound-insulation laminated glass for head-up display and head-up display system |
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| CN202011497016.XA CN114643837A (en) | 2020-12-17 | 2020-12-17 | Sound-insulation laminated glass for head-up display and head-up display system |
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| US20020086141A1 (en) * | 1997-07-24 | 2002-07-04 | Gerd Sauer | Laminated glass windscreen intended to be used at the same time as a hud system reflector |
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