CN109835149B - Anti-dazzle laminated glass - Google Patents
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- CN109835149B CN109835149B CN201910264045.2A CN201910264045A CN109835149B CN 109835149 B CN109835149 B CN 109835149B CN 201910264045 A CN201910264045 A CN 201910264045A CN 109835149 B CN109835149 B CN 109835149B
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Abstract
The invention relates to the technical field of anti-dazzle, in particular to anti-dazzle laminated glass, which comprises first glass and second glass and is characterized in that: anti-dazzle laminated glass top-down includes first region, the second region and the main field of vision region of adjusting luminance in proper order, and the visible light transmissivity of first region when bright state of adjusting luminance is less than the visible light transmissivity of the second region when bright state of adjusting luminance, and the visible light transmissivity of first region when dark state of adjusting luminance is less than the visible light transmissivity of the second region when dark state of adjusting luminance, and first region of adjusting luminance is equipped with first membrane of adjusting luminance, and the second is adjusted luminance the region and is equipped with the second membrane of adjusting luminance. Has the advantages that: the influence of external light on driving can be fundamentally solved, and the driving safety and comfort are greatly improved.
Description
The technical field is as follows:
the invention relates to the technical field of anti-dazzle, in particular to anti-dazzle laminated glass.
Background art:
in the driving process, because of sunlight in the daytime, high beam lights for meeting at night and other direct strong lights, drivers are easy to glare, uncomfortable and even short visual blind areas are generated, and traffic accidents are easy to cause.
In order to avoid such a traffic accident, a sun visor is installed in front of the driver, and the sun visor needs to be turned down when the driver blocks light, thereby preventing strong light from directly irradiating the driver. Due to the opacity of the existing sun visor, the shading area is limited in consideration of driving safety, and the existing sun visor needs to occupy the space in a vehicle, so that the appearance is poor. In addition, the driver needs to manually adjust the position of the sun shield at any time according to the illumination condition, so that the driving safety is not facilitated.
For another example, chinese patent CN105799468 discloses a light-shielding and wind-shielding device for an automobile, which includes a liquid crystal display device disposed in a sun-shielding region of an upper portion of the automobile. When the external strong light irradiates, the strong light is prevented from directly irradiating the eyes of a driver to influence the driving safety by adjusting the light transmittance of the liquid crystal display device. However, the scheme can only realize the sun shading of the upper area of the front bumper and cannot realize the shielding of the high beam irradiation area.
Although regulations require that high beam (high beam) must be switched to low beam within 150 meters during a night meeting, the united states of america also mandates that the high beam should not be turned off within 500 feet during the night meeting. However, such violations are frequently prohibited. When a driver meets the high light, the driver can slightly deviate to avoid dazzling of the high light, but driving comfort is still affected, and potential safety hazards exist. Therefore, a new shade device is needed.
The invention content is as follows:
the invention aims to solve the technical problem of the existing shading device and provides anti-dazzle laminated glass with different dimming areas and safety and comfort.
The technical scheme adopted by the invention for solving the technical problems is as follows: an anti-dazzle laminated glass comprises a first glass and a second glass, and is characterized in that: the anti-dazzle laminated glass sequentially comprises a first dimming area, a second dimming area and a main view field area from top to bottom, the visible light transmittance of the first dimming area in a bright state is smaller than that of the second dimming area in a bright state, the visible light transmittance of the first dimming area in a dark state is smaller than that of the second dimming area in a dark state, the first dimming area is provided with a first dimming film, the second dimming area is provided with a second dimming film, two opposite surfaces of the first dimming film are arranged between the first glass and the second glass through a first bonding layer and a second bonding layer respectively, and two opposite surfaces of the second dimming film are arranged between the first glass and the second glass through the first bonding layer and the second bonding layer respectively.
Further, the first and second dimming regions are both stripe-shaped.
Furthermore, the visible light transmittance of the first dimming region in a bright state is 40-70%, and the visible light transmittance in a dark state is 1-5%; the second dimming region has a visible light transmittance of 70-75% in a bright state and a visible light transmittance of 10-35% in a dark state.
Further, the first dimming region is a color layer, and the visible light transmittance in a bright state is 40-50%.
Further, the second light modulation film is a reverse light modulation film or a bistable light modulation film.
Further, the second light adjusting film has a haze of 1-5% in a bright state and a haze of 30-85% in a dark state.
Further, the width of the first dimming area is 100-400 mm, and the width of the second dimming area is 200-400 mm.
Further, the LED lamp also comprises a control module used for adjusting the transmittance of the first dimming area and the second dimming area.
Further, the main viewing area is provided with a third adhesive layer, and the third adhesive layer is located between the first adhesive layer and the second adhesive layer.
Further, the anti-dazzle laminated glass is a front bumper of the vehicle.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1) the first dimming area is arranged in the relatively higher sunshade area, and the second dimming area is arranged in the relatively lower shining area facing towards sunset and high beam, so that the influence of external light on driving is fundamentally avoided, and the driving safety and comfort are greatly improved;
2) different regions have different visible light transmittances, so that the front windshield can meet the requirements of regulations and can realize safe and comfortable driving;
3) the first dimming area and the second dimming area are independently adjusted, so that different functions, working and control requirements can be met;
4) the transmittance can be automatically adjusted, and the driving safety is facilitated.
Description of the drawings:
FIG. 1 is a front view of an antiglare laminated glass of the present invention;
FIG. 2 is a schematic cross-sectional view of an antiglare laminated glass of the present invention;
reference numerals in the drawings indicate: 1 is the first glass, 2 is the second glass, 3 is the first region of adjusting luminance, 31 is the first membrane of adjusting luminance, 4 is the second region of adjusting luminance, 41 is the second membrane of adjusting luminance, 5 is main field of vision region, 51 is the third tie coat, 6 is the first tie coat, 7 is the second tie coat.
The specific implementation mode is as follows:
the invention will be further explained with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, that is, orientations in a use state, and the drawings are illustrated as hierarchical structures, not actual effect diagrams, and thus, are not to be construed as limitations of the present invention.
As shown in fig. 1 and 2, the anti-glare laminated glass of the present invention, which is particularly suitable for a front windshield of a vehicle, comprises a first glass 1 and a second glass 2, and is characterized in that: the anti-dazzle laminated glass sequentially comprises a first dimming region 3, a second dimming region 4 and a main visual field region 5 from top to bottom, the visible light transmittance of the first dimming region 3 in a bright state is smaller than the visible light transmittance of the second dimming region 4 in a bright state, the visible light transmittance of the first dimming region 3 in a dark state is smaller than the visible light transmittance of the second dimming region 4 in a dark state, the first light control region 3 is provided with a first light control film 31, the second light control region 4 is provided with a second light control film 41, two opposite surfaces of the first light adjusting film 31 are respectively arranged between the first glass 1 and the second glass 2 through a first bonding layer 6 and a second bonding layer 7, two opposite surfaces of the second light adjusting film 41 are respectively disposed between the first glass 1 and the second glass 2 through a first adhesive layer 6 and a second adhesive layer 7.
In the present invention, considering that light sources with different heights and directions irradiate areas with different heights on the glass, two independent first light modulation areas 3 and second light modulation areas 4 are arranged above a main visual field area 5 (the visible light transmittance of the main visual field area is more than or equal to 70 percent), namely, the first light modulation area 3 is arranged in a relatively higher sunshade area, and the second light modulation area 4 is arranged in a relatively lower irradiation area facing sunset and high beam. The dark state of the second dimming area 4 is much more transparent than the dark state of the first dimming area 3, and the transparency must be so high that all objects in front are clearly visible under the high beam and sunset, and must be so low that the dazzling effect of the high beam and sunset on the eyes can be effectively reduced. In practice the dark state of the first dimming area 3 is substantially opaque, while the dark state of the second dimming area 4 is in a translucent state. The invention considers the influence of the sunshade area on the driver, and also considers the influence of the sunset, especially the high-beam (high beam) irradiation area on the driver, and the influence of the external light on the driving of the automobile is integrally considered, so the influence of the external light on the driving of the automobile can be fundamentally solved, and the driving safety and the driving comfort are greatly improved.
And, the dimming ranges of the two regions are different, the first dimming region 3 with a higher relative position is required to have a lower visible light transmittance in a dark state, and the second dimming region 4 with a lower relative position is required to have a higher visible light transmittance in a bright state, and the first dimming region 3 and the second dimming region 4 may be arranged adjacently. If only one dimming area is provided, the dimming film has to have a wider dimming interval range in order to simultaneously meet the visible light transmittance requirements of different positions. The larger the dimming interval range of the dimming film is, the higher the cost is, the worse the stability is, and the more difficult the realization of the technology is. Therefore, two dimming regions are divided, as long as the respective visible light transmittance requirements are met, so that each dimming region can adopt a relatively small dimming interval range, and the production cost is reduced.
Furthermore, the division into the first dimming area 3 and the second dimming area 4 is also very advantageous for configuring the control module. This is because the first dimming region 3 is located in a higher non-visual field region, and its main operation state is a dark state in order to function as a sunshade at any time. The second dimming region 4 is located in a lower driver's head-up region, and only occasionally plays a role of shielding glare, and the main working state is a bright state in order to meet the safety regulation requirement of visible light transmittance. That is, the operating requirements of the two are different, and the main operating states are opposite. Therefore, the invention divides the front bumper into two independent dimming areas and adopts different dimming films and control modules to respectively control the dimming areas.
Further, the first dimming region 3 has a visible light transmittance of 40 to 70% in a bright state and a visible light transmittance of 1 to 5% in a dark state; the second dimming region 4 has a visible light transmittance of 70 to 75% in a bright state and a visible light transmittance of 10 to 35% in a dark state. The first dimming region 3 is preferably a color layer having a visible light transmittance of 40 to 50% in a bright state. Since the first dimming region 3 is not a field of view region of the driver, it is possible to set a low visible light transmittance, and it is possible to provide a good sunshade in a dark state. The second dimming region 4 is required to have a high visible light transmittance (greater than 70%) in a bright state, and to rapidly reduce the visible light transmittance under strong light irradiation such as a high beam or sunward, in order to meet the safety regulation requirement. The driving safety and comfort are greatly improved by adopting two different visible light transmittances.
Specifically, for the first dimming region 3 located relatively higher, when not being irradiated by intense light, the first dimming region 3 is adjusted to a bright state with higher visible light transmittance, such as 40%, 45%, or 50%, so that the interior lighting effect can be improved; when the first dimming region 3 is irradiated by the strong light, the first dimming region is adjusted to a dark state with a low visible light transmittance, such as 1%, 2%, 3%, 4% or 5%, so that the strong light can be basically and completely shielded. For the second dimming area 4 which is relatively lower and is irradiated towards sunset and high beam, when the second dimming area 4 is not irradiated by strong light, the second dimming area 4 is adjusted to a bright state with higher visible light transmittance, such as 70%, 72%, 74% or 75%, and the sight line of the driver is not influenced; when illuminated with intense light, the second dimming area 4 is adjusted to a lower transmittance dark state, such as 10%, 15%, 20% or 25%, which has a one-way visible effect. In addition, the second dimming area 4 still has a certain visible light transmittance in a dark state, so that even if the dimming is performed by mistake in the case of no glare, the outside view seen from the inside of the vehicle is clear, thereby avoiding the influence of misoperation on the sight of the driver and further improving the driving safety.
Further, in order to enable the front windshield to meet the regulatory requirements and to achieve safe and comfortable driving requirements, the second light modulation film 41 has a haze of 1 to 5% in a bright state and a haze of 30 to 85% in a dark state.
In the present invention, the first dimming region 3 and the second dimming region 4 are set according to irradiation regions of high light with different heights, the width of the first dimming region 3 is set according to the size of a sunshade region, the width of the second dimming region 4 is set according to the size of a high beam irradiation region, and the shapes of the first dimming region 3 and the second dimming region 4 are preferably stripe shapes. Preferably, the width L of the first dimming region 31Preferably 100-400 mm, and the width L of the second dimming region 42Preferably 200 to 400 mm. For a small car, the width L of the first dimming region1Optionally 100-200 mm, width L of the second dimming region2Can be selected to be 200-300 mm; width L of first dimming region for large bus1Optionally 300-400 mm, the width L of the second dimming region2Can be selected to be 300-400 mm.
In the invention, for the requirement of beauty, the peripheral edge region of the anti-dazzle laminated glass is provided with an opaque ink printing edge region. Therefore, the electrodes of the first and second light adjusting films 31 and 32 can be disposed in the area blocked by the ink printing edge, so that the aesthetic effect is not affected.
In the present invention, the first adhesive layer 6 and the second adhesive layer 7 are transparent thermoplastic polymer film layers commonly used for laminated glass of vehicles, such as polyvinyl butyral (PVB), Ethylene Vinyl Acetate (EVA), Polyurethane (PU), polyvinyl chloride (PVC), etc.
Most of existing dimming films are 'powered on transparent and powered off frosted', and when the dimming films need to be adjusted to a high transparent state, the dimming films need to be powered on, and when the dimming films are used at ordinary times, the dimming films need to be in a transparent state for most of time, and only can be switched to a frosted state under partial conditions to shade light.
Compared with the forward dimming film, the reverse dimming film is a PNLC (Polymer Network Liquid Crystal) reverse dimming film which is transparent in power failure and frosted in power on, does not need power consumption when being transparent, is more reasonable in application, and can be widely applied to building doors and windows, building curtain walls and vehicles.
The bistable state is a display unit which can have two different states of bright state and dark state under the condition of no voltage application and can be continuously maintained, so that the electric quantity loss can be effectively reduced.
In the present invention, the first dimming region 3 may adopt dimming technologies such as PDLC, SPD, LC, and EC. When the sunshade belt is used normally, the sunshade belt needs to be in a frosted state or a low-transmittance state for shading most of time, and only can be switched to a transparent state under partial conditions, so that the visual field and the light are increased. Therefore, the forward direction light control film for the first light control region can save energy.
The second dimming region 4 needs to have a high visible light transmittance for most of the time, and therefore, the second dimming film 41 is preferably a reverse dimming film or a bistable dimming film, and can be switched between a bright state and a dark state within 1 second, preferably within 0.1 second.
It should be understood that any other type of light modulation film can be used for the first light modulation region 3 and the second light modulation region 4 as long as the light modulation interval range requirement and the visible light transmittance requirement of the present invention can be satisfied.
Further, the dimming device further comprises a control module for adjusting the transmittance of the first dimming area 3 and the second dimming area 4. The invention can adopt photoelectric sensors, image acquisition, sound acquisition and other control modules which are electrically connected with the first dimming film 31 and the second dimming film 41, and then respectively control the visible light transmittance of the first dimming area 3 and the second dimming area 4 in a manual or automatic mode, thereby realizing the purposes of front windshield sunshade, high beam glare prevention, sunset glare prevention and the like, and achieving the purpose of safe and comfortable driving.
Further, the main viewing area 5 is provided with a third adhesive layer 51, and the third adhesive layer 51 is positioned between the first adhesive layer 6 and the second adhesive layer 7. It should be understood that the third adhesive layer 51 is not essential, and by providing the third adhesive layer 51 having substantially the same thickness as the first and second light adjusting films 31 and 41, the interlayer structure can be made more rational, thereby improving the yield.
The above description specifically describes an anti-glare laminated glass according to the present invention, but the present invention is not limited to the above description, and the anti-glare laminated glass is also applicable to a vehicle side window, so that any improvements, equivalent modifications, substitutions and the like made according to the technical gist of the present invention are within the scope of the present invention.
Claims (9)
1. An antiglare laminated glass comprising a first glass (1) and a second glass (2), characterized in that: the anti-dazzle laminated glass sequentially comprises a first dimming area (3), a second dimming area (4) and a main visual field area (5) from top to bottom, the visible light transmittance of the first dimming area (3) in a bright state is smaller than that of the second dimming area (4) in the bright state, the visible light transmittance of the first dimming area (3) in a dark state is smaller than that of the second dimming area (4), the first dimming area (3) is provided with a first dimming film (31), the second dimming area (4) is provided with a second dimming film (41), two opposite surfaces of the first dimming film (31) are arranged between the first glass (1) and the second glass (2) through a first bonding layer (6) and a second bonding layer (7) respectively, and two opposite surfaces of the second dimming film (41) are arranged between the first glass (1) and the second glass (2) through the first bonding layer (6) and the second bonding layer (7) respectively Between the first glass (1) and the second glass (2); the first dimming region (3) has a visible light transmittance of 40-70% in a bright state and a visible light transmittance of 1-5% in a dark state; the second dimming region (4) has a visible light transmittance of 70-75% in a bright state and a visible light transmittance of 10-35% in a dark state.
2. The antiglare laminated glass according to claim 1, characterized in that: the first dimming region (3) and the second dimming region (4) are both in a strip shape.
3. The antiglare laminated glass according to claim 1, characterized in that: the first dimming area (3) is a color layer, and the visible light transmittance in a bright state is 40-50%.
4. The antiglare laminated glass according to claim 1, characterized in that: the second light adjusting film (41) is a reverse light adjusting film or a bistable light adjusting film.
5. The antiglare laminated glass according to claim 1, characterized in that: the second light adjusting film (41) has a haze of 1-5% in a bright state and a haze of 30-85% in a dark state.
6. The antiglare laminated glass according to claim 1, characterized in that: the width of the first dimming area (3) is 100-400 mm, and the width of the second dimming area (4) is 200-400 mm.
7. The antiglare laminated glass according to claim 1, characterized in that: the dimming device also comprises a control module for adjusting the transmittance of the first dimming area (3) and the second dimming area (4).
8. Antiglare laminated glass according to claim 1, characterized in that the main viewing zone (5) is provided with a third adhesive layer (51), the third adhesive layer (51) being located between the first (6) and second (7) adhesive layers.
9. The antiglare laminated glass according to claim 1, characterized in that: the anti-dazzle laminated glass is a front bumper of a vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910264045.2A CN109835149B (en) | 2019-04-03 | 2019-04-03 | Anti-dazzle laminated glass |
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| CN201910264045.2A CN109835149B (en) | 2019-04-03 | 2019-04-03 | Anti-dazzle laminated glass |
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| CN109835149A CN109835149A (en) | 2019-06-04 |
| CN109835149B true CN109835149B (en) | 2021-01-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111660774B (en) * | 2020-06-18 | 2022-09-09 | 京东方科技集团股份有限公司 | Motor vehicle auxiliary device, motor vehicle and use method of auxiliary device |
| FR3114265B1 (en) * | 2020-09-21 | 2023-03-24 | Saint Gobain | Process for obtaining laminated curved glazing |
| CN113997773A (en) * | 2021-11-26 | 2022-02-01 | 一汽奔腾轿车有限公司 | Automatic dimming intelligent automobile awning system and control method thereof |
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Effective date of registration: 20230919 Address after: 201814 Shanghai Jiading District city Anting Town Park Road No. 588 Patentee after: FUYAO GROUP (SHANGHAI) AUTOMOBILE GLASS Co.,Ltd. Address before: 350301 zone 2, Fuyao Glass Industrial Zone, Honglu Town, Fuqing City, Fuzhou City, Fujian Province Patentee before: FUYAO GLASS INDUSTRY GROUP Co.,Ltd. |
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