Vehicle-mounted projection screen and projection system

Abstract

The utility model discloses a vehicle-mounted projection screen and a projection system, and belongs to the field of vehicle-mounted projection display. A vehicle-mounted projection screen comprises an organic silica gel surface layer, a glass fiber cloth base layer and an organic silica gel decorative layer which are sequentially arranged, the thickness of the organic silica gel surface layer is 0.2 mm-0. 3 mm, the thickness of the glass fiber cloth base layer is 0.01 mm-0. 2 mm, the thickness of the organic silica gel decorative layer is 0.05 mm-0. 2 mm, and the organic silica gel surface layer is used for imaging light projected by a projector. The vehicle-mounted projection screen is easy to roll, small in rolling diameter, suitable for being installed in a narrow and small space in a vehicle, resistant to flame and fire, capable of meeting the safety requirement in the vehicle, not prone to wrinkling and good in flatness. The utility model further discloses a vehicle-mounted projection system comprising the projection screen, the vehicle and the projector, the projection system is good in imaging quality, attractive in appearance and high in stability, reliability and safety, and the requirements of vehicle-mounted electronic products are met.

Description

[0001] The present application relates to the field of vehicle-mounted projection display, in particular to a vehicle-mounted projection screen and a projection system comprising the vehicle-mounted projection screen. BACKGROUND

[0002] With the development of information technology, the automobile has not been limited to a kind of transport tool, but a kind of mobile terminal integrated with multiple life functions and entertainment functions, and the function of vehicle-mounted system is continuously enriched. In order to play the maximum screen in the limited space, the vehicle-mounted projection emerges as the times require, but the vehicle-mounted projection has very high requirements on stability, reliability and safety, such as requiring the vehicle-mounted projection screen to have no odor, good flame retardance; the limited space in the vehicle requires the projection screen to have small winding size, flat and beautiful appearance when being unfolded, etc. The current household projection screen cannot meet the requirements of the vehicle-mounted projection screen, so it is urgent to develop a new projection screen to meet the requirements of the vehicle-mounted projection. SUMMARY

[0003] The present application provides a vehicle-mounted projection screen, which is easy to wind, has small winding diameter, is suitable for installation in the narrow space in the vehicle, meets the safety requirements in the vehicle, is not easy to wrinkle and has good flatness.

[0004] The technical scheme provided by the present application is as follows:

[0005] A vehicle-mounted projection screen comprises an organic silica gel surface layer, a glass fiber cloth base layer and an organic silica gel decorative layer arranged in sequence, the thickness of the organic silica gel surface layer is 0.2mm-0.3mm, the thickness of the glass fiber cloth base layer is 0.01mm-0.2mm, and the thickness of the organic silica gel decorative layer is 0.05mm-0.2mm, and the organic silica gel surface layer is used for imaging the light projected by a projector.

[0006] In the present application, the vehicle-mounted projection screen is arranged as a multi-layer flexible structure comprising an organic silica gel surface layer, a glass fiber cloth base layer and an organic silica gel decorative layer, so that the projection screen is easy to wind, and the thickness of each layer is arranged to effectively control the total thickness of the vehicle-mounted projection screen, so that a smaller winding diameter can be obtained, and the projection screen is suitable for installation in the narrow space in the vehicle; the projection screen of the present application is arranged as a structure in which the organic silica gel surface layer and the organic silica gel decorative layer sandwich the glass fiber cloth base layer, which can prevent fire and effectively meet the safety requirements of the vehicle; the structure in which the organic silica gel surface layer and the organic silica gel decorative layer sandwich the organic silica gel interlayer glass fiber cloth base layer ensures the winding flexibility of the projection screen; the glass fiber cloth base layer supports the organic silica gel surface layer and the organic silica gel decorative layer, so that the projection screen is not wrinkled after being wound, and the projection screen has good flatness and meets the display and viewing requirements.

[0007] Further, the surface of the organic silicone rubber layer is provided with a diffusion microstructure, and the distribution range of light passing through the diffusion microstructure is an ellipse, the long axis of the ellipse is parallel to the horizontal direction of the projection screen, the short axis of the ellipse is parallel to the vertical direction of the projection screen, and the ratio of the long axis to the short axis of the ellipse is greater than or equal to 4.

[0008] In the present application, the diffusion microstructure with an elliptical light energy distribution range is arranged on the surface of the projection screen, so that the image light emitted through the projection screen is more distributed into the horizontal viewing field, and the distribution range of the vertical image light is contracted, thereby more meeting the demand of the audience that the horizontal viewing field is greater than the vertical viewing field, and effectively improving the light energy utilization rate of the projection screen.

[0009] Further, the organic silicone rubber layer further comprises an organic silicone rubber surface layer and an organic silicone rubber inner layer arranged in sequence, the refractive index of the organic silicone rubber surface layer is less than or equal to 1.6, and the refractive index of the organic silicone rubber inner layer is 1.7-2.2.

[0010] In the present application, the organic silicone rubber layer is arranged into two layers with different refractive indexes, and the image light is emitted into the low-refractive-index layer through the high-refractive-index layer, so that the distribution range of the emitted light is further expanded, and the viewing demand of the large horizontal field of view of the projection screen in the vehicle is met.

[0011] Further, the organic silicone rubber layer and the glass fiber cloth base layer are further provided with an organic silicone rubber adhesive layer, and the thickness of the organic silicone rubber adhesive layer is 0.01mm-0.07mm.

[0012] In the present application, the arrangement of the organic silicone rubber adhesive layer can strengthen the bonding force between the organic silicone rubber layer and the glass fiber cloth base layer, so that the structure of the projection screen is more stable, and the service life is prolonged.

[0013] Further, the organic silicone rubber layer is provided with spherical particles, the average particle size of the spherical particles is 0.2μm-20μm, and the spherical particles are one or more of PC particles, PMMA particles, PS particles, titanium dioxide particles, aluminum oxide particles, magnesium oxide particles, calcium carbonate particles, barium sulfate particles, and zinc oxide particles.

[0014] In the present application, the spherical particles in the organic silicone rubber layer can effectively scatter / reflect the projection light, and improve the brightness of the projection screen.

[0015] Further, the surface of the organic silicone rubber decorative layer is provided with a micro-texture structure, and the micro-texture structure comprises at least one of cowhide texture, sheepskin texture, pigskin texture, alligator skin texture, snake skin texture, and lychee texture.

[0016] In the present application, the organic silicone rubber decorative layer is provided with various texture structures, so that the projection screen is more beautiful.

[0017] Further, the organic silicone glue decorative layer is non-transparent, and a black light-absorbing organic silicone glue layer is further arranged between the micro-texture structure and the glass fiber cloth base layer, and the black light-absorbing organic silicone glue layer is used for absorbing light transmitted through the glass fiber cloth base layer.

[0018] In the present application, the black light-absorbing organic silicone glue layer is used for absorbing light transmitted through the glass fiber cloth base layer, which can avoid the influence of light transmitted through the projection screen on safe driving on one hand, and can absorb part of ambient light and improve the contrast of the projection screen on the other hand.

[0019] Further, the thickness of the projection screen is less than or equal to 0.5 mm.

[0020] In the present application, the thickness of the projection screen is extremely small, so that the diameter of the projection screen after being rolled up is less than 50 mm, thereby meeting the installation requirements of the narrow space in the vehicle.

[0021] Further, the organic silicone glue surface layer is non-transparent, and the average reflectivity of the organic silicone glue surface layer to visible light is greater than or equal to 85%.

[0022] In the present application, the organic silicone glue surface layer is used for scattering or reflecting the projection light to form an image, and the higher reflectivity can effectively improve the brightness of the projection screen.

[0023] A vehicle-mounted projection system, comprising the vehicle-mounted projection screen according to any one of the preceding claims, a projector and a vehicle, the projector is used for projecting image light to the projection screen, the projection screen is hung on the roof between the driver seat and the rear seat in the vehicle, and the projector is installed on the roof behind the rear seat in the vehicle.

[0024] The vehicle-mounted projection system of the present application has good imaging quality, beautiful appearance, high stability, reliability and safety, and meets the requirements of vehicle-mounted electronic products.

[0025] Advantages:

[0026] The projection screen for vehicle of the present application is provided with a multi-layer flexible structure including a silicone rubber surface layer, a glass fiber cloth base layer and a silicone rubber decorative layer, so that the projection screen is easy to be rolled up, and the thickness of each layer is set to effectively control the total thickness of the projection screen, so that a smaller rolling diameter can be obtained, and the projection screen is suitable for installation in a narrow space in the vehicle; the projection screen is provided with a structure in which the silicone rubber surface layer and the silicone rubber decorative layer sandwich the silicone rubber interlayer glass fiber cloth base layer, so that the projection screen is flame-retardant and fireproof, and effectively meets the safety requirements of vehicle regulations; the structure in which the silicone rubber surface layer and the silicone rubber decorative layer sandwich the silicone rubber interlayer glass fiber cloth base layer ensures the rollable flexibility of the projection screen; the glass fiber cloth base layer supports the silicone rubber surface layer and the silicone rubber decorative layer, so that the projection screen is prevented from being wrinkled after being rolled up, and the projection screen has good flatness and meets the display and viewing requirements.

[0027] The projection system for vehicle of the present application has good imaging quality, an attractive appearance, high stability, reliability and safety, and meets the requirements of vehicle electronic products. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a schematic view of the projection screen structure for vehicle of the present application;

[0029] Figure 2 FIG. 2 is a schematic view of the distribution of light rays by the diffusion microstructure on the projection screen of the present application;

[0030] Figure 3 FIG. 3 is a schematic view of the structure of the silicone rubber surface layer of the present application;

[0031] Figure 4 FIG. 4 is a schematic view of the projection screen structure of the present application;

[0032] Figure 5 FIG. 5 is a schematic view of the projection screen structure of the present application;

[0033] Figure 6 FIG. 6 is a schematic view of the structure of the silicone rubber decorative layer of the present application;

[0034] Figure 7 FIG. 7 is a schematic view of the projection screen structure of the present application;

[0035] Figure 8 FIG. 8 is a schematic view of the reflectivity of the projection screen of the present application to visible light;

[0036] Figure 9 FIG. 9 is a schematic view of the projection system of the present application;

[0037] In the drawings, the meanings of the reference signs are as follows:

[0038] 1 - projection screen; 2 - projector; 3 - car; 10 - organic silicone rubber surface layer; 101 - diffusion microstructure; 102 - organic silicone rubber surface layer; 103 - organic silicone rubber inner layer; 104 - spherical particles; 20 - glass fiber cloth base layer; 30 - organic silicone rubber decorative layer; 301 - black light-absorbing organic silicone rubber layer; 40 - organic silicone rubber adhesive layer; 31 - driver's seat; 32 - rear seat. DETAILED DESCRIPTION

[0039] The term used in the embodiment part of the present application is only used to explain the specific embodiment of the present application, and is not intended to limit the present application. The "organic silicone rubber" in the present application is a common polymer material composed of silicon-oxygen bond linkages, which has good flexibility and elasticity.

[0040] EMBODIMENT

[0041] Figure 1 The schematic structure of the projection screen for vehicle of the present application is shown in the figure. The projection screen 1 of the present application comprises an organic silicone rubber surface layer 10, a glass fiber cloth base layer 20 and an organic silicone rubber decorative layer 30 arranged in sequence. The thickness h of the organic silicone rubber surface layer 10 is 0.2mm-0.3mm (the thickness h can be 0.2mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.3mm, etc.), the thickness p of the glass fiber cloth base layer 20 is 0.01mm-0.2mm (the thickness p can be 0.01mm, 0.02mm, 0.03mm, 0.05mm, 0.08mm, 0.10mm, 0.12mm, 0.15mm, 0.18mm, 0.2mm, etc.), and the thickness m of the organic silicone rubber decorative layer 30 is 0.05mm-0.2mm (the thickness m can be 0.05mm, 0.1mm, 0.15mm, 0.2mm, etc.). The organic silicone rubber surface layer 10 is used for imaging the light projected by the projector, the glass fiber cloth base layer 20 is used for bearing the organic silicone rubber surface layer 10 and the organic silicone rubber decorative layer 30, and the organic silicone rubber decorative layer 30 makes the projection screen 1 more beautiful.

[0042] Further explanation, the thickness h of the organic silicone rubber surface layer 10 is less than 0.2mm, the reflection effect of light is weak, the brightness of the image is low, and the viewing requirement is not met; the thickness h of the organic silicone rubber surface layer 10 is greater than 0.3mm, the projection screen is too soft, and it is not easy to flatten after being curled. The thickness p of the glass fiber cloth base layer 20 is less than 0.01mm, the supporting effect of the organic silicone rubber surface layer 10 is weak, the projection screen is too soft, and it is not easy to flatten after being curled; the thickness p of the glass fiber cloth base layer 20 is greater than 0.2mm, the projection screen is too hard, and it is easy to wrinkle after being curled. The thickness m of the organic silicone rubber decorative layer 30 is less than 0.05mm, the decorative layer is too thin and is easy to be damaged; the thickness m of the organic silicone rubber decorative layer 30 is greater than 0.2mm, the projection screen is too soft, and it is not easy to flatten after being curled.

[0043] In the embodiment of the present application, the vehicle-mounted projection screen 1 is provided as a multi-layer flexible structure including an organic silicone rubber surface layer 10, a glass fiber cloth base layer 20 and an organic silicone rubber decorative layer 30, so that the projection screen is easy to be rolled up. By setting the thickness of each layer, the total thickness of the vehicle-mounted projection screen is effectively controlled, a smaller curling diameter is obtained, and the projection screen is suitable for installation in a narrow space in the vehicle. The projection screen of the present application is provided as a structure of the organic silicone rubber surface layer, the organic silicone rubber decorative layer sandwiching the glass fiber cloth base layer, which can be flame-retardant and fireproof, effectively meeting the vehicle-grade safety requirements. The structure of the organic silicone rubber surface layer, the organic silicone rubber decorative layer sandwiching the glass fiber cloth base layer ensures the curling flexibility of the projection screen. The glass fiber cloth base layer can support the organic silicone rubber surface layer and the organic silicone rubber decorative layer, thereby avoiding the projection screen from being wrinkled after being curled, and obtaining good flatness of the projection screen, meeting the display and viewing requirements.

[0044] Figure 2 The present application is a schematic diagram of the distribution of light on the projection screen. The surface of the organic silicone rubber surface layer 10 is provided with a diffusion microstructure 101, and the distribution range of light passing through the diffusion microstructure 101 is an ellipse. The long axis x of the ellipse is parallel to the horizontal direction of the projection screen, the short axis y of the ellipse is parallel to the vertical direction of the projection screen, and the ratio of the size of the long axis x to the short axis y of the ellipse is greater than or equal to 4.

[0045] Further explanation, the distribution range of light on the projection screen is an ellipse, which is more in line with the viewing requirements of the viewer, and can better improve the light energy utilization rate, so the larger the ratio of the size of the long axis x to the short axis y of the ellipse, the better. When the ratio of the size of the long axis x to the short axis y of the ellipse is less than 4, the distribution of light energy in the vertical direction of the projection screen is too much, which has no effect on the viewer and causes waste of light energy.

[0046] In the embodiment of the present application, the surface of the projection screen is provided with the diffusion microstructure 101 with an elliptical light energy distribution range. The image light rays emitted from the projection screen are more distributed in the horizontal viewing field of the projection screen, and the distribution range of the vertical image light rays is contracted, so that the demand of the audience that the horizontal viewing field is greater than the vertical viewing field can be met, and the light energy utilization rate of the projection screen is effectively improved.

[0047] Further, Figure 3 The organic silicone rubber surface layer structure of the embodiment of the present application is shown in the figure. The organic silicone rubber surface layer 10 comprises an organic silicone rubber surface layer 102 and an organic silicone rubber inner layer 103 arranged in sequence. The refractive index of the organic silicone rubber surface layer 102 is less than or equal to 1.6, and the refractive index of the organic silicone rubber inner layer 103 is 1.7-2.2.

[0048] In the embodiment of the present application, the organic silicone rubber surface layer 10 is arranged in two layers with different refractive indexes. On the one hand, the light rays incident on the projection screen from the projector can pass through the low-refractive-index layer to the high-refractive-index layer, so that the reflection of the surface of the projection screen is reduced, and the utilization rate of the projection light rays is improved. On the other hand, the image light rays emitted from the projection screen can first pass through the high-refractive-index layer to the low-refractive-index layer, so that the distribution range of the emitted light rays can be further expanded, and the demand of the projection screen for the horizontal viewing field of the vehicle can be met.

[0049] Further, Figure 4 The projection screen structure of the embodiment of the present application is shown in the figure. The organic silicone rubber surface layer 10 and the glass fiber cloth base layer 20 can further be provided with an organic silicone rubber adhesive layer 40. The thickness l of the organic silicone rubber adhesive layer 40 is 0.01mm-0.07mm (the thickness l can be 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, etc.).

[0050] Further explanation and description, the thickness l of the organic silicone rubber adhesive layer 40 is less than 0.01mm, the thickness of the organic silicone rubber adhesive layer is too thin, and the adhesion is weak. The thickness l of the organic silicone rubber adhesive layer 40 is greater than 0.07mm, and the organic silicone rubber adhesive layer is thick, which is not conducive to curing and forming.

[0051] In the embodiment of the present application, the organic silicone rubber adhesive layer can strengthen the bonding force between the organic silicone rubber surface layer 10 and the glass fiber cloth base layer 20, so that the structure of the projection screen is more stable, and the service life is prolonged.

[0052] Further, the organic silicone rubber surface layer 10 and the glass fiber cloth base layer 20 can further be provided with an organic silicone rubber circular Fresnel lens layer or an organic silicone rubber linear Fresnel lens layer or an organic silicone rubber linear grating structure layer and other optical microstructures. The out-of-angle control of the projection light rays by the optical microstructures can effectively improve the brightness gain of the projection screen.

[0053] Further, Figure 5 The schematic diagram of the organic silicone rubber coating layer with the spherical particles in the embodiment of the present application. The spherical particles 104 are arranged in the organic silicone rubber coating layer 10, and the average particle size of the spherical particles 104 is 0.2 μm to 20 μm (the average particle size can be 0.2 μm, 0.3 μm, 0.5 μm, 0.8 μm, 1 μm, 5 μm, 10 μm, 15 μm, 20 μm, etc.). The spherical particles 104 are one or more of PC particles, PMMA particles, PS particles, titanium dioxide particles, aluminum oxide particles, magnesium oxide particles, calcium carbonate particles, barium sulfate particles, and zinc oxide particles.

[0054] Further explanation, the spherical particles 104 are arranged in the organic silicone rubber coating layer 10, which can make the projection light uniformly scattered or reflected on the particles, and the brightness of the imaging is uniform. When the average particle size of the particles 104 is less than 0.2 μm, the scattering or reflection of the projection light is weakened, and the brightness of the projection screen is reduced. When the average particle size of the spherical particles 104 is greater than 20 μm, the diffraction effect between the light and the spherical particles is enhanced, and the scattering or reflection is also weakened, and the brightness of the projection screen is reduced. The average particle size of the spherical particles mentioned here refers to the diameter of more than half of the spherical particles, that is, most of the particle sizes of the spherical particles are 0.2 μm to 20 μm. Due to the non-uniformity of the processing technology of the spherical particles, a small part of the particle sizes of the spherical particles may not be within the range of 0.2 μm to 20 μm, but the influence is very weak and can be ignored, which also belongs to the scope of the present application.

[0055] In the embodiment of the present application, the spherical particles 104 in the organic silicone rubber coating layer 10 can effectively scatter / reflect the projection light, and improve the brightness of the projection screen.

[0056] Further, the surface of the organic silicone rubber decorative layer 30 is provided with a micro-texture structure, and the micro-texture structure includes at least one of decorative patterns such as cowhide pattern, sheepskin pattern, pigskin pattern, crocodile skin pattern, snake skin pattern, and lychee pattern. These patterns can provide people with visual or tactile aesthetic feelings, and make the projection screen more beautiful.

[0057] Further, Figure 6 The schematic diagram of the organic silicone rubber decorative layer structure in the embodiment of the present application. The organic silicone rubber decorative layer 30 is non-transparent, and a black light-absorbing organic silicone rubber layer 301 is further arranged between the micro-texture structure and the glass fiber cloth base layer 20. The black light-absorbing organic silicone rubber layer 301 is used to absorb the light transmitted through the glass fiber cloth base layer 20.

[0058] In the embodiment of the present application, the black light-absorbing organic silicone rubber layer 301 is used to absorb the light transmitted through the glass fiber cloth base layer 20, which can avoid the influence of the light transmitted through the projection screen on safe driving on one hand, and can absorb part of the ambient light to improve the contrast of the projection screen on the other hand.

[0059] Further, Figure 7 The thickness H of the projection screen 1 is less than or equal to 0.5 mm.

[0060] In the embodiment of the present application, the thickness of the projection screen is extremely small, so that the diameter of the projection screen after being rolled up can be less than 50 mm, thereby meeting the installation requirement of the narrow space in the vehicle. When the thickness H of the projection screen 1 is greater than 0.5 mm, the diameter of the projection screen after being rolled up will be greater than 50 mm, which is difficult to meet the installation requirement of the narrow space in the vehicle.

[0061] Further, Figure 8 The figure is a schematic diagram of the reflectivity of the projection screen to visible light according to the embodiment of the present application. The organic silicone rubber surface layer is non-transparent, and the average reflectivity of the organic silicone rubber surface layer to visible light (wavelength range of visible light: 380 nm to 780 nm) is greater than or equal to 85%. Here, the average reflectivity of the organic silicone rubber surface layer to visible light greater than or equal to 85% means that all the reflectivity in the wavelength range of 380 nm to 780 nm of visible light is greater than or equal to 85%.

[0062] In the embodiment of the present application, the organic silicone rubber surface layer is used for scattering or reflecting the projection light to form an image, and the higher reflectivity can effectively improve the brightness of the projection screen.

[0063] Figure 9 The figure is a schematic diagram of the projection system according to the embodiment of the present application. The vehicle-mounted projection system comprises the projection screen 1 described above, a projector 2 and a vehicle 3. The projector 2 is used for projecting image light to the projection screen 1. The projection screen 1 is hung on the roof of the vehicle between the driver seat 31 and the rear seat 32. The projector 2 is installed on the roof of the vehicle behind the rear seat 32.

[0064] Further explanation and description, the projection screen 1 is hung on the roof of the vehicle between the driver seat 31 and the rear seat 32, so that the viewer on the rear seat can watch a stable image. The projection screen can be rolled up to the roof, without occupying the space in the vehicle, thereby ensuring the comfort of the passengers. The projector 2 is installed on the roof of the vehicle behind the rear seat 32, which ensures the stability of the projection image, does not affect the use space of the passengers in the vehicle, does not disturb the passengers, and is high in safety. The vehicle-mounted projection system according to the embodiment of the present application is high in imaging quality, appearance, stability, reliability and safety, and meets the requirements of vehicle-mounted electronic products.

[0065] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A projection screen for use in a vehicle, characterized by comprising: The projection screen comprises a silicone rubber surface layer, a glass fiber cloth base layer and a silicone rubber decorative layer arranged in sequence, the thickness of the silicone rubber surface layer is 0.2-0.3 mm, the thickness of the glass fiber cloth base layer is 0.01-0.2 mm, and the thickness of the silicone rubber decorative layer is 0.05-0.2 mm, and the silicone rubber surface layer is used for imaging the light projected by the projector.

2. The projection screen of claim 1, wherein, The surface of the silicone rubber surface layer is provided with a diffusion microstructure, the distribution range of the light passing through the diffusion microstructure is an ellipse, the long axis of the ellipse is parallel to the horizontal direction of the projection screen, the short axis of the ellipse is parallel to the vertical direction of the projection screen, and the ratio of the long axis to the short axis of the ellipse is greater than or equal to 4.

3. The projection screen of claim 1, wherein, The silicone rubber surface layer further comprises a silicone rubber surface layer and a silicone rubber inner layer arranged in sequence, the refractive index of the silicone rubber surface layer is less than or equal to 1.6, and the refractive index of the silicone rubber inner layer is 1.7-2.

2.

4. The projection screen of claim 1, wherein, An adhesive layer is arranged between the silicone rubber surface layer and the glass fiber cloth base layer, and the thickness of the adhesive layer is 0.01-0.07 mm.

5. The projection screen of claim 1, wherein, Spherical particles are arranged in the silicone rubber surface layer, the average particle size of the spherical particles is 0.2-20 μm, and the spherical particles are one or more of PC particles, PMMA particles, PS particles, titanium dioxide particles, aluminum oxide particles, magnesium oxide particles, calcium carbonate particles, barium sulfate particles and zinc oxide particles.

6. The projection screen of claim 1, wherein, The surface of the silicone rubber decorative layer is provided with a micro-texture structure, and the micro-texture structure comprises at least one of cowhide texture, sheepskin texture, pigskin texture, crocodile skin texture, snake skin texture and lychee texture.

7. The projection screen of claim 6, wherein, The silicone rubber decorative layer is non-transparent, and a black light-absorbing silicone rubber layer is arranged between the micro-texture structure and the glass fiber cloth base layer, and the black light-absorbing silicone rubber layer is used for absorbing the light passing through the glass fiber cloth base layer.

8. The projection screen of claim 1, wherein, The thickness of the projection screen is less than or equal to 0.5 mm.

9. The projection screen of claim 1, wherein, The silicone rubber surface layer is non-transparent, and the average reflectivity of the silicone rubber surface layer to visible light is greater than or equal to 85%.

10. A projection system for a vehicle, characterized by comprising: The projection screen comprises the projection screen according to any one of claims 1-9, a projector and a vehicle, the projector is used for projecting image light to the projection screen, the projection screen is hung on the roof of the vehicle between the driver's seat and the rear seat, and the projector is installed on the roof of the vehicle behind the rear seat.

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