Image generation unit, head-up display device, and vehicle display system

Abstract

The present disclosure relates to an image generating unit, a head-up display device and a vehicle display system. In an aspect, the image generating unit comprises a display panel configured to generate image light, a micro-structured optical element disposed on an exit side of the display panel and having a micro-structured surface, and a light-transmitting anti-reflection layer disposed on the micro-structured surface and configured to reduce reflectivity of the micro-structured surface to light rays incident from outside the image generating unit. Thus, the intensity of secondary stray light sources formed by the micro-structured surface due to external light irradiation can be reduced while maintaining the image light transmission capability.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more specifically, to image generation units, head-up display devices, and vehicle display systems. Background Technology

[0002] With the development of vehicle intelligence and cockpit display technology, head-up display (HUD) devices are widely used in vehicles. HUD devices typically generate image light through a picture generation unit (PGU), and then project the image light onto an imaging window such as a windshield or synthesizer through optical components such as reflective elements to form a virtual image for the driver to observe. Summary of the Invention

[0003] This section provides a general overview of this disclosure, rather than a full disclosure of the entire scope or all features of this disclosure.

[0004] This disclosure provides an image generation unit that can reduce reflection or diffuse reflection caused by external light irradiating the surface of a microstructure while maintaining the light transmittance of the image, thereby reducing the adverse effects of stray light on the head-up display device.

[0005] According to a first aspect of this disclosure, an image generation unit is provided. The image generation unit includes a display panel, microstructured optics, and a light-transmitting antireflective layer. The display panel is used to generate image light. The microstructured optics are disposed on the light-emitting side of the display panel and have a microstructured surface. The light-transmitting antireflective layer is disposed on the microstructured surface and configured to reduce the reflectivity of the microstructured surface to light incident from outside the image generation unit.

[0006] According to a second aspect of this disclosure, a head-up display (HUD) device is provided. The HUD device includes an image generating unit as described in the first aspect and at least one reflective element. The at least one reflective element is configured to receive image light from the image generating unit and project the image light to the outside via a light-emitting port of the HUD device.

[0007] According to a third aspect of this disclosure, a vehicle display system is provided. The vehicle display system includes a head-up display (HUD) as described in the second aspect and an instrument panel cover. The instrument panel cover is disposed at the light outlet of the HUD. Attached Figure Description

[0008] The features and advantages of embodiments of the present disclosure will become more readily understood from the following description with reference to the accompanying drawings. The drawings are not drawn to scale and some features may be enlarged or reduced to show details of specific components. In the drawings: Figure 1This is a schematic diagram of the optical path of a vehicle display system according to an embodiment of the present disclosure.

[0009] Figure 2 This is a schematic diagram illustrating the path through which external light shines onto the microstructure surface of the image generation unit, causing reflection.

[0010] Figure 3 This is a schematic diagram of an image generation unit according to an embodiment of the present disclosure.

[0011] Figure 4 This is a schematic diagram illustrating the path of external light shining onto the dashboard cover to create a bright spot in related technologies.

[0012] Figure 5 This is a schematic diagram of an instrument panel cover according to an embodiment of the present disclosure.

[0013] Figure 6 This is a schematic diagram illustrating the path of external light shining onto the dashboard panel to create a bright spot in the relevant technology.

[0014] Figure 7 This is a schematic diagram showing the arrangement relationship between the instrument panel cover and the instrument panel according to an embodiment of the present disclosure.

[0015] Figure 8 This is a schematic diagram showing the arrangement relationship between the instrument panel cover and the instrument panel according to another embodiment of this disclosure.

[0016] In the accompanying drawings, the same or corresponding technical features or components are represented by the same or corresponding reference numerals. Detailed Implementation

[0017] The present disclosure will now be described in detail with reference to the accompanying drawings and exemplary embodiments. It should be noted that the following detailed description of the present disclosure is for illustrative purposes only and is not intended to limit the scope of the disclosure.

[0018] It should be noted that, for clarity, not all features of a particular embodiment are described or shown in the specification and drawings. Furthermore, to avoid unnecessary details obscuring the technical solutions of interest in this disclosure, only the device structure closely related to the technical solutions of this disclosure is described and shown in the specification and drawings, while other details that are not closely related to the technical content of this disclosure and are known to those skilled in the art are omitted.

[0019] In some head-up display (HUD) devices, a diffuser, microlens array, microprism array, or other microstructured optical components are provided on the light-emitting side of the image generation unit. These microstructured optical components can diffuse, homogenize, or otherwise optically modulate the image light to improve the display effect of the HUD device.

[0020] However, in a vehicle's operating environment, external light such as sunlight may enter the head-up display (HUD) through the windshield and, after being reflected by the reflective elements within the HUD, illuminate the microstructure surface of the microstructure optical component. Due to the diffusion or scattering properties of the microstructure surface, diffuse reflection may occur when external light strikes it, creating secondary stray light sources. This secondary stray light may propagate along the optical path of the HUD and, after reflection from the windshield, enter the driver's eye box, thus affecting display quality.

[0021] Since this microstructure optical component also needs to allow image light to pass through or participate in image light modulation, blackening or applying ordinary opaque matte treatment to the surface of the microstructure may affect the image light transmittance or display quality. Therefore, it is necessary to reduce the reflection or diffuse reflection of external light on the surface of the microstructure while maintaining the image light transmittance.

[0022] The causes of stray light generation will now be further explained in conjunction with the vehicle display system according to the present disclosure.

[0023] Reference Figure 1 This is a schematic diagram of the optical path of a vehicle display system according to an embodiment of the present disclosure. Figure 1 As shown, the vehicle display system 1 typically includes a head-up display 10 and a light outlet 110 disposed on the head-up display 10. Figure 1 The instrument panel cover 20 (shown schematically by dashed lines) is located at the range of the light outlet, such as the windshield or the imaging window 30 of the synthesizer.

[0024] The head-up display device 10 includes an image generation unit 100 and at least one reflective element. Figure 1 The first reflective element 220 and the second reflective element 240 are shown as examples. In normal operation, the image generation unit 100 outputs image light S, which is reflected by the first reflective element 220 and the second reflective element 240 in sequence, and then projected to the outside (e.g., the windshield of a vehicle) through the light outlet 110. Finally, it is reflected into the eye box area 2, thereby forming a virtual image 3 on the outside of the imaging window 30.

[0025] The technical solutions of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0026] Combined with reference Figure 2 In actual vehicle use, external light (such as sunlight) L may enter the head-up display 10 through the imaging window 30, which serves as a windshield. After entering, the external light L may shine on the reflector in the head-up display 10 and, after being reflected by the reflector, shine on various surfaces inside the head-up display 10.

[0027] like Figure 2As shown, the microstructured optical component 124 of the image generation unit 100 has a microstructured surface 124a. This microstructured surface 124a is used for optical modulation such as diffusion or homogenization of the image light S. When external light L is reflected sequentially by the second reflective element 240 and the first reflective element 220 and then irradiates the microstructured surface 124a, due to the microscopic irregular structure of the microstructured surface 124a, diffuse reflection may occur, i.e., light is scattered over a large angular range, making the microstructured surface 124a approximately a secondary luminescent surface. For example... Figure 2 As shown, diffuse light generated by the microstructure surface 124a ( Figure 2 (The light source is indicated by a dashed line with an arrow in the image) may be reflected along the light path of the head-up display device 10 by the first reflective element 220 and the second reflective element 240, and then emitted from the light outlet 110 of the head-up display device 10. After being reflected by the imaging window 30, it enters the eye box area 2, affecting the display of the head-up display device 10.

[0028] To address this, this disclosure provides an image generation unit that provides a light-transmitting anti-reflection layer on the surface of a microstructure. This reduces the reflectivity of the microstructure surface to external light while maintaining image light transmittance, thereby reducing the intensity of the microstructure surface as a secondary stray light source. The following is in conjunction with... Figures 3 to 8 The technical solutions of each embodiment of this disclosure will be described in detail.

[0029] Reference Figure 3 This disclosure provides an image generation unit 100. The image generation unit 100 includes a display panel 120, microstructure optics 124, and a light-transmitting antireflective layer 140.

[0030] The display panel 120 is used to generate image light S. Generating image light S means that the display panel 120 can generate light carrying image information. The image light S can be received and projected by subsequent optical components (such as reflective elements) to ultimately form a virtual image for the driver to observe.

[0031] For example, the image generation unit 100 further includes a backlight device 160, which is disposed on the side of the display panel 120 opposite to the light-emitting side of the image light S, and is used to provide backlight B to the display panel 120. The backlight B is modulated by the display panel 120 to form the image light S.

[0032] Microstructured optical components 124 are disposed on the light-emitting side of the display panel 120 and have a microstructured surface 124a. The light-emitting side refers to the side from which the image light S is emitted from the display panel 120, i.e., the side facing the internal reflective element of the head-up display device 10. Microscale structural features (such as microlens arrays, microprisms, irregular protrusions or depressions, etc.) are formed on the microstructured surface 124a. These microstructures can diffuse, homogenize, or otherwise optically modulate the passing image light S to improve the uniformity of the image light S.

[0033] A light-transmitting antireflective layer 140 is disposed on the microstructure surface 124a and configured to reduce the reflectivity of the microstructure surface 124a to light incident from outside the image generation unit 100.

[0034] "Light transmission" refers to the fact that the light-transmitting anti-reflection layer 140 has good transmittance for the image light S generated by the image generation unit 100, and will not significantly attenuate the intensity of the image light S, thereby not affecting the normal display brightness and image quality of the head-up display device 10. "Anti-reflection" refers to the fact that the light-transmitting anti-reflection layer 140 can reduce the reflectivity of the microstructure surface 124a to incident light, so that when external light L is reflected by the reflective element inside the head-up display device 10 and shines on the microstructure surface 124a, the intensity of the reflected light (including diffuse reflection light) generated by the microstructure surface 124a is reduced.

[0035] By providing a light-transmitting anti-reflection layer 140 on the microstructure surface 124a, the reflectivity of the microstructure surface 124a to external light L can be reduced. Due to the reduced reflectivity of the microstructure surface 124a, when external light L shines on the microstructure surface 124a, the intensity of the reflected light is reduced, thereby reducing the intensity of stray light propagating through the light path of the head-up display device 10 and ultimately entering the eye box region 2. Simultaneously, because the light-transmitting anti-reflection layer 140 has good light transmittance, the image light S generated by the image generation unit 100 can pass normally through the light-transmitting anti-reflection layer 140 and will not adversely affect the normal display function of the head-up display device 10.

[0036] In some implementations, refer to Figure 3 The microstructure optics 124 may include a diffuser. The diffuser is disposed on the light-emitting side of the display panel 120, and the microstructure surface 124a is located on the diffuser.

[0037] In some embodiments, the display panel 120 is a panel capable of modulating light to generate image information, such as a liquid crystal display panel, an organic light-emitting diode (OLED) display panel, a micro light-emitting diode (Micro-LED) display panel, etc.

[0038] A diffuser 124 is disposed on the light-emitting side of the display panel 120, that is, between the display panel 120 and the reflective element of the head-up display device 10. The surface of the diffuser 124 has microstructures formed thereon, specifically, a microstructure surface 124a is located on the diffuser 124. When image light S is emitted from the display panel 120 and passes through the diffuser 124, the microstructures on the diffuser 124 can diffuse and homogenize the image light S, thereby improving the uniformity and viewing angle characteristics of the image light S. It is understood that the microstructure surface 124a on the diffuser 124 is a surface that easily diffuses incident light due to its microstructural characteristics. Therefore, the light-transmitting antireflection layer 140 is disposed on the microstructure surface 124a of the diffuser 124, which can reduce the reflectivity of the microstructure surface 124a to external light L.

[0039] In some embodiments, the light-transmitting antireflective layer 140 may include at least one of an antireflective film and an antireflective transparent coating.

[0040] Antireflective coatings can be, for example, single-layer or multi-layer optical thin films deposited on the microstructure surface 124a through processes such as vacuum evaporation or sputtering. They utilize the principle of thin-film interference to reduce the reflectivity of the microstructure surface 124a. For example, the antireflective coating can be a single-layer magnesium fluoride film or a multi-layer antireflective coating formed by alternating layers of high-refractive-index and low-refractive-index materials. Antireflective transparent coatings can be, for example, transparent coatings applied to the microstructure surface 124a through a coating process. The refractive index of this coating can be designed to be between the refractive index of the material on the microstructure surface 124a and the refractive index of air, thereby reducing reflection at the interface through a gradual change in refractive index. For example, the antireflective transparent coating can be a nanoporous silica coating.

[0041] It is understood that in some embodiments, the light-transmitting antireflective layer 140 may also include both an antireflective film and an antireflective transparent coating, that is, the two are used in combination to further reduce the reflectivity of the microstructure surface 124a.

[0042] In some embodiments, the reflectivity of the microstructure surface 124a on which the light-transmitting antireflective layer 140 is provided is less than or equal to 0.5%.

[0043] The reflectivity refers to the overall reflectivity of the microstructure surface 124a to incident light after the light-transmitting antireflection layer 140 is applied. For example, it can be the average reflectivity within the visible light spectrum. By controlling the reflectivity to below 0.5%, the intensity of reflected light generated when external light L shines on the microstructure surface 124a is relatively low. This reduces the intensity of stray light propagating through the light path of the head-up display device 10 and entering the eye box region 2 to a negligible level, thereby improving the display quality of the head-up display device 10.

[0044] In some embodiments, the reflectivity of the microstructure surface 124a is about 4% to 5% when the light-transmitting antireflection layer 140 is not provided; by providing the light-transmitting antireflection layer 140, the reflectivity is reduced to below 0.5%, and the stray light intensity can be significantly reduced.

[0045] Below, still refer to Figure 1 Based on the description of the image generation unit 100, the head-up display device 10 will be described.

[0046] The head-up display device 10 includes an image generating unit 100 and at least one reflective element. The at least one reflective element is configured to receive image light S from the image generating unit 100 and project the image light S to the outside through the light outlet 110 of the head-up display device 10.

[0047] Here, at least one reflective element refers to an optical component in the head-up display device 10 used to reflect and guide the image light S, and its number can be one or more. Figure 1 In the example shown, at least one reflective element is exemplarily shown as a first reflective element 220 and a second reflective element 240.

[0048] It is understandable that the reflecting element can be, for example, a plane mirror, a curved mirror, or a freeform mirror. In addition to changing the propagation direction of the image light S, a curved mirror or a freeform mirror can also perform optical processing such as magnification and aberration correction on the image light S.

[0049] Below, still refer to Figure 1 Based on the description of the image generation unit 100 and the head-up display device 10, the vehicle display system 1 will be further explained.

[0050] The vehicle display system 1 may include a head-up display 10 and an instrument panel cover 20. The instrument panel cover 20 is disposed at the light outlet 110 of the head-up display 10.

[0051] The instrument panel cover 20 refers to a cover structure installed on the vehicle instrument panel and surrounding the light outlet 110 of the head-up display 10. The instrument panel cover 20 is used to integrate the head-up display 10 into the instrument panel and to shield and decorate the area around the light outlet 110. After the image light S is emitted from the light outlet 110 of the head-up display 10, it propagates towards the imaging window 30 through the opening area surrounded by the instrument panel cover 20.

[0052] However, in actual vehicle use environments, in addition to the stray light problem mentioned above where external light L is reflected by the reflective element and then shines on the microstructure surface 124a of the image generation unit 100, external light L may also produce undesirable optical effects on the instrument panel cover 20.

[0053] Reference Figure 4 The diagram illustrates the path of external light L illuminating the instrument panel cover 20' and creating a bright spot in the related art. In this diagram, after entering the head-up display 10' through the imaging window 30, the external light L may be reflected by the reflective element 240' inside the head-up display 10' before illuminating the surface of the instrument panel cover 20'. Specifically, the external light L illuminates the baffle portion 22' (i.e., the rear baffle) of the instrument panel cover 20'. If the surface of the baffle portion 22' has a high reflectivity, the external light L, after being reflected by this surface, may form a visible bright spot on the baffle portion 22'. This bright spot may be directly observed by the driver, or the reflected light may enter the driver's field of vision, causing visual interference.

[0054] Therefore, referring to Figure 5 In some embodiments, the instrument panel cover 20 includes a baffle portion 22 located at the edge of the light outlet 110. The baffle portion 22 refers to a plate-like structural portion of the instrument panel cover 20 located at the edge of the light outlet 110 and surrounding the light outlet 110. Typically, the baffle portion 22 is located on the side of the instrument panel cover 20 away from the imaging window 30, or in other words, on the side of the instrument panel cover 20 relatively closer to the driver's seat.

[0055] At least a portion of the surface of the baffle portion 22 is provided with an anti-glare treatment layer 24. The anti-glare treatment layer 24 is a functional layer provided on the surface of the baffle portion 22 that can reduce the intensity of reflection of incident light by the surface. The anti-glare treatment layer 24 is configured to reduce the intensity of reflection of external light L reflected by the head-up display device 10 to the at least a portion of the area.

[0056] At least a partial area refers to a portion or all of the surface of the baffle portion 22. It is understood that not the entire surface of the baffle portion 22 will be irradiated by the ambient light L reflected by the head-up display device 10. Therefore, the matting layer 24 can be provided in the area of ​​the baffle portion 22 that will actually be irradiated by the ambient light L, i.e., the irradiated area of ​​the baffle portion 22 surface after the ambient light L is reflected by the internal reflective element of the head-up display device 10. In some embodiments, the matting layer 24 may also cover the entire surface of the baffle portion 22 to simplify the manufacturing process and provide a more comprehensive matting effect.

[0057] By providing an anti-glare treatment layer 24 on at least a portion of the surface of the baffle portion 22, when external light L is reflected by a reflective element inside the head-up display device 10 and irradiates that portion of the baffle portion 22, the anti-glare treatment layer 24 can reduce the reflection intensity of the external light L in that area. For example, the anti-glare treatment layer 24 can reduce the reflection intensity by absorbing the energy of the incident light, diffusely reflecting the incident light to disperse its energy, or by optical interference. This reduces or eliminates bright spots on the instrument panel cover 20 caused by the reflection of external light L, reducing visual interference to the driver.

[0058] In some embodiments, the matte treatment layer 24 may include a flocked layer, a matte spray layer, a frosted layer, or a light-absorbing material layer.

[0059] The flocked layer refers to the surface layer formed by attaching short fibers (flocks) to the surface of the baffle portion 22 through electrostatic flocking or other processes. The surface of the flocked layer is composed of a large number of dense short fibers, which have low gloss and high light absorption rate, and can absorb the light shining on its surface, thereby reducing the intensity of reflection.

[0060] The matte coating refers to a coating with a matte effect formed on the surface of the baffle 22 through a spraying process. The matte coating usually contains matte powder or other additives, which creates a microscopic rough structure on the coating surface, thereby diffusely reflecting incident light and reducing specular reflection.

[0061] The frosted layer refers to a surface layer with a micro-rough structure formed on the surface of the baffle portion 22 through processes such as mechanical grinding, chemical etching, or sandblasting. The micro-rough structure of the frosted layer can scatter incident light in multiple directions, thereby reducing the reflection intensity in any particular direction.

[0062] A light-absorbing material layer is a surface layer formed from a material with a high light absorption rate (such as a carbon black coating). This layer absorbs most of the energy of incident light, thus reducing the intensity of reflection.

[0063] It is understood that in some embodiments, the matte treatment layer 24 may also be a combination of the above types. For example, a matte spray coating may be applied on top of the frosted layer to further reduce the reflectivity.

[0064] In addition to providing a matte finish layer 24 on the baffle portion 22 of the instrument panel cover 20, in a real vehicle environment, external light L may also produce undesirable optical effects on the instrument panel panel adjacent to the instrument panel cover 20.

[0065] Reference Figure 6The diagram illustrates the path of external light L illuminating the instrument panel 40' and creating a bright spot in the related art. In this example, after the external light L enters the head-up display 10' through the imaging window 30, it may be reflected by the reflective elements inside the head-up display 10' and then emitted from the light outlet, illuminating the instrument panel 40' which is adjacent to the instrument panel cover 20'. If the surface of the instrument panel 40' has a certain reflectivity, the external light L, after being reflected on the surface of the instrument panel 40', may form a visible bright spot on the instrument panel 40', causing visual interference to the driver.

[0066] In response, separate methods can be adopted, such as... Figure 7 and Figure 8 The two different implementation methods shown are used to solve this problem.

[0067] Reference Figure 7 In some embodiments, the vehicle display system 1 further includes an instrument panel 40. The instrument panel 40 is disposed adjacent to the instrument panel cover 20. Here, "adjacent" means that the instrument panel 40 and the instrument panel cover 20 are spatially close to or adjacent to each other; for example, the instrument panel 40 and the instrument panel cover 20 may be connected to each other on the surface of the instrument panel. As mentioned above, the instrument panel cover 20 includes a baffle portion 22 located at the edge of the light outlet 110, and at least a portion of the surface of the baffle portion 22 is provided with a matte finish layer 24. In this embodiment, this at least a portion is located on the propagation path of the external light L reflected from the head-up display device 10 to the instrument panel 40.

[0068] In other words, at least a portion of the area covered by the matte finish layer 24 is positioned along the path of external light L, which is reflected from inside the head-up display 10 and propagates toward the dashboard panel 40. In this way, when external light L passes through the reflective elements inside the head-up display 10 ( Figure 7 When the ambient light L (shown as the second reflective element 240) propagates towards the dashboard panel 40 after reflection, it passes through at least a portion of the area on the baffle portion 22 where the matting layer 24 is provided before reaching the dashboard panel 40. The matting layer 24 can absorb, diffusely reflect, or scatter the ambient light L passing through this area, thereby reducing the intensity of the ambient light L reaching the dashboard panel 40, or blocking the ambient light L from reaching the dashboard panel 40.

[0069] This reduces or eliminates bright spots on the dashboard panel 40 caused by reflections of external light L, thus reducing visual interference for the driver.

[0070] Reference Figure 8In other embodiments, the instrument panel 40 disposed adjacent to the instrument panel cover 20 may be arranged relative to the instrument panel cover 20 toward the side away from the propagation path of the external light L reflected by the head-up display device 10.

[0071] Here, "arranged away from the propagation path of the ambient light L reflected by the head-up display 10" means that the instrument panel 40 is spatially positioned on a side inaccessible to the propagation path of the ambient light L. For example, the instrument panel 40 may be offset or tilted relative to the instrument panel cover 20 away from the light outlet 110, so that the propagation path of the ambient light L reflected by the head-up display 10 does not illuminate the surface of the instrument panel 40. It is conceivable that this arrangement can be achieved by adjusting the height difference, tilt angle, or horizontal offset of the instrument panel 40 relative to the instrument panel cover 20.

[0072] By arranging the instrument panel 40 on the side away from the path of external light L, the external light L reflected by the head-up display 10 will not shine onto the surface of the instrument panel 40 after exiting the light outlet 110, thus avoiding the problem of bright spots on the instrument panel 40. Moreover, by avoiding the illumination of the instrument panel 40 by external light L through spatial arrangement, no additional matte treatment is required on the surface of the instrument panel 40, simplifying the manufacturing process.

[0073] It is understandable that, respectively, Figure 7 and Figure 8 The two methods shown above can also be used in combination to further reduce the impact of external light L on the instrument panel 40.

[0074] Although this disclosure has been described with reference to exemplary embodiments, it should be understood that this disclosure is not limited to the specific embodiments described and shown herein. Various changes can be made to the exemplary embodiments by those skilled in the art without departing from the scope defined by the claims of this disclosure.

[0075] The features mentioned and / or shown in the foregoing description of exemplary embodiments of this disclosure may be combined in the same or similar manner with one or more other embodiments, combined with features in other embodiments, or substituted for corresponding features in other embodiments. Such combinations or substitutions should also be considered as including within the scope of protection of this disclosure.

Claims

1. An image generation unit, characterized in that, include: Display panel used to generate image light; A microstructured optical component is disposed on the light-emitting side of the display panel and has a microstructured surface; as well as A light-transmitting antireflective layer is disposed on the surface of the microstructure and configured to reduce the reflectivity of the microstructure surface to light incident from outside the image generation unit.

2. The image generation unit according to claim 1, characterized in that, The microstructure optical component includes a diffuser sheet disposed on the light-emitting side of the display panel, and the microstructure surface is located on the diffuser sheet.

3. The image generation unit according to claim 1 or 2, characterized in that, The light-transmitting antireflective layer includes at least one of an antireflective film and an antireflective transparent coating.

4. The image generation unit according to claim 1 or 2, characterized in that, The reflectivity of the microstructure surface on which the light-transmitting antireflective layer is provided is less than or equal to 0.5%.

5. A head-up display device, characterized in that, include: The image generation unit according to any one of claims 1 to 4; as well as At least one reflective element is configured to receive the image light from the image generation unit and project the image light outward through the light outlet of the head-up display device.

6. A vehicle display system, characterized in that, include: The head-up display device according to claim 5; as well as The instrument panel cover is located at the light outlet of the head-up display device.

7. The vehicle display system according to claim 6, characterized in that, The instrument panel cover includes a baffle portion located at the edge of the light outlet, and at least a portion of the surface of the baffle portion is provided with an anti-glare treatment layer, which is configured to reduce the reflection intensity of external light reflected to the at least a portion of the area via the head-up display device.

8. The vehicle display system according to claim 7, characterized in that, The matte finish layer includes at least one of a flocked layer, a matte spray layer, a frosted layer, and a light-absorbing material layer.

9. The vehicle display system according to claim 7, characterized in that, It also includes an instrument panel, which is disposed adjacent to the instrument panel cover, and the at least part of the area is located on the propagation path of external light reflected to the instrument panel via the head-up display device.

10. The vehicle display system according to claim 6, characterized in that, It also includes an instrument panel, which is disposed adjacent to the instrument panel cover and is arranged relative to the instrument panel cover toward a side away from the propagation path of external light reflected by the head-up display device.

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