Display devices and means of transport

Abstract

A display device (901) and a vehicle are disclosed, which may be used in the display field, for example, in a head-up display (HUD) in the vehicle field. The display device (901) includes an image generating device (101), a screen (102), a screen support (103), and a baffle (104). The image generating device (101) is configured to generate imaging light carrying image information and to emit the imaging light to the screen (102). The screen (102) is configured to receive and display the imaging light generated by the image generating device (101). The screen support (103) is configured to support the screen (102). An edge of the screen support (103) may protrude beyond an edge of the screen (102). The baffle (104) is disposed around the image generating device (101) and configured to block stray light from reaching the screen support (103). To prevent the screen support (103) from burning out due to overheating, a baffle (104) is added around the screen (102) of the display device (901) to block stray light from reaching the screen support (103), thereby extending the life of the display device (901) and improving the user experience.

Description

[Technical Field]

[0001] This application claims priority to Chinese Patent Application No. 202210950023.3, entitled "DISPLAY DEVICE AND TRANSPORTATION MEANS," filed with the State Intellectual Property Office of the People's Republic of China on August 9, 2022, and the entirety of which is incorporated herein by reference.

[0002] The present application relates to the field of displays, and in particular to display devices and vehicles. [Background technology]

[0003] A display device is a device that has the ability to display images that can be viewed by a user, such as a head up display (HUD), a projector, or a desktop display.

[0004] For products deployed with display devices, direct sunlight has a significant impact on both the product and the user experience. A HUD is used as an example. Direct sunlight on the mechanical components of a HUD can overheat them, thereby shortening the lifespan of the display device. If the mechanical components are not made of high-temperature resistant materials, they may burn out, creating a safety issue. Summary of the Invention

[0005] The embodiments of the present application provide a display device and a transportation means, in which a baffle is added around the entire periphery of the screen of the display device to block stray light from reaching mechanical parts, i.e., the screen support (used to support the screen of the display device), and prevent the screen support from burning out due to overheating, thereby extending the lifespan of the display device.

[0006] In view of this, the embodiments of the present application provide the following technical solutions: [Means for solving the problem]

[0007] According to a first aspect, an embodiment of the present application provides, for the first time, a display device that can be used in the display field, for example, in a head-up display (HUD) in a vehicle field scenario. The display device includes an image generating device, a screen, a screen support, and a baffle. The image generating device is configured to generate imaging light carrying image information and emit the imaging light to the screen. The screen is configured to receive and display the imaging light generated by the image generating device. The screen support is configured to support the screen. In this embodiment of the present application, an edge of the screen support may protrude from an edge of the screen. The baffle is disposed around the image generating device, for example, may be disposed around the entire periphery of the image generating device, and is configured to block stray light from reaching the screen support. The baffle may be of any form or shape that can be used to block light. This is not a limitation of the present application.

[0008] In the aforementioned implementation of the present application, a baffle is added around the screen of the display device to block stray light from reaching the mechanical parts, i.e., the screen support, to prevent the screen support from burning out due to overheating, thereby extending the life of the display device and improving the user experience.

[0009] In a possible implementation of the first aspect, the characteristics of the baffle may include a high temperature resistant material.

[0010] In the aforementioned implementation of the present application, high temperature resistant materials are selected for the baffle to achieve better heat conduction effect.

[0011] In a possible implementation of the first aspect, the included angle between the plane on which the baffle is arranged and the plane on which the screen is arranged (the included angle may be referred to as the planar included angle) is within a preset angle range. For example, the planar included angle is equal to or greater than a first included angle value (e.g., 10°) and equal to or less than a second included angle value (e.g., 170°). The first included angle value and the second included angle value may be customized. For example, the value ranges of the two included angle values may be adjusted based on the height of the baffle. This is not a limitation of the present application.

[0012] In the above-described implementation of the present application, the angle of inclination of the baffle relative to the screen may be customized and is flexible.

[0013] In a possible implementation of the first aspect, the display device may further include a light filter whose output angle is within a preset threshold range (e.g., the output angle is ±10°). In this embodiment of the present application, the preset threshold range may be set to a small value. Therefore, the light filter used in the present application may also be referred to as a small-angle light filter. The light filter is disposed above the screen and configured to pass a light beam whose output angle is within the preset threshold range, and the light beam is transmitted to the light filter by the image generation device.

[0014] In the above implementation of the present application, a small-angle light filter is added above the screen, so that the glare with a large exit angle cannot pass through. In this way, the glare of sunlight can be greatly reduced.

[0015] In a possible implementation of the first aspect, the included angle between the light filter and the screen is greater than zero. In other words, the light filter and the screen may be disposed at a certain included angle, and the light filter and the screen are not parallel.

[0016] In the above implementations of the present application, the purpose of setting the included angle between the light filter and the screen is to prevent specular reflection and improve the user experience.

[0017] In a possible implementation of the first aspect, the display device may further include a polarizing film and a quarter-wave plate. Both the polarizing film and the quarter-wave plate are disposed on the same side of the screen, and sunlight is sequentially radiated through the polarizing film, the quarter-wave plate, and the screen. The polarizing film is configured to transmit S-polarized light and block P-polarized light. The quarter-wave plate is configured to transmit S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is converted to P-polarized light after being reflected by the screen and then passing through the quarter-wave plate again. That is, the S-polarized light is converted to P-polarized light after passing through the quarter-wave plate twice. Note that the phrase "sunlight being sequentially radiated through the polarizing film, the quarter-wave plate, and the screen" means that the optical path of the sunlight passes through the polarizing film, the quarter-wave plate, and the screen in order. After the sunlight is radiated through each of the above components, the components of the light beam contained in the sunlight may change. This description will not be described in detail in this application. It is further noted that in the following implementations, the case where sunlight is emitted into each component in turn is similar, and details will not be described in the following implementations.

[0018] In the above-described implementation of the present application, a combination of a polarizing film and a quarter-wave plate may be further used to eliminate glare. The polarizing film transmits S-polarized light, and the S-polarized light becomes P-polarized light after passing through the quarter-wave plate twice, so that the P-polarized light cannot be emitted from the polarizing film. Therefore, glare can be reduced.

[0019] In a possible implementation form of the first aspect, the display device may further include a dustproof cover, a polarizing film arranged on the dustproof cover, and a quarter-wave plate arranged on the screen, wherein sunlight is sequentially emitted into the dustproof cover, the polarizing film, the quarter-wave plate, and the screen, the polarizing film being configured to transmit S-polarized light and block the transmission of P-polarized light, and the quarter-wave plate being configured to transmit the S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is reflected by the screen and then passes through the quarter-wave plate again, and then changes to P-polarized light.

[0020] In the above-described implementation of the present application, a combination of a polarizing film and a quarter-wave plate is still used to eliminate glare, but the polarizing film is deployed under the dust cover (i.e., attached to the underside of the dust cover), and the polarizing film is flexibly deployed.

[0021] In a possible implementation form of the first aspect, the display device may further include a dustproof cover, a polarizing film arranged on the dustproof cover, and a quarter-wave plate arranged on the screen, wherein sunlight is sequentially emitted into the polarizing film, the dustproof cover, the quarter-wave plate, and the screen, the polarizing film being configured to transmit S-polarized light and block the transmission of P-polarized light, and the quarter-wave plate being configured to transmit the S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is reflected by the screen and then passes through the quarter-wave plate again, and then changes to P-polarized light.

[0022] In the above-described implementation of the present application, a combination of a polarizing film and a quarter-wave plate is still used to eliminate glare, but the polarizing film is deployed on top of the dust cover (i.e., attached to the top surface of the dust cover), and the polarizing film is flexibly deployed.

[0023] In a possible implementation of the first aspect, the display device may further include a dust cover, at least one curved mirror, a polarizing film disposed on one of the at least one curved mirrors (which may be referred to as a target curved mirror), and a quarter-wave plate disposed on the screen, where sunlight is sequentially emitted into the dust cover, the curved mirrors other than the target curved mirror among the at least one curved mirror, the target curved mirror (including the polarizing film), the quarter-wave plate, and the screen. Note that the polarizing film may be attached to any of the curved mirrors, and therefore the order in which sunlight is emitted into the curved mirrors is determined by the positional relationship between the target curved mirror (including the polarizing film) and the curved mirrors other than the target curved mirror among the at least one curved mirror. The above-mentioned emission order is merely an example and is not limited in this application. The polarizing film is configured to transmit S-polarized light and block P-polarized light. The quarter-wave plate is configured to transmit S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is converted to P-polarized light after being reflected by the screen and then passing through the quarter-wave plate again.

[0024] In the above implementation of the present application, the deployment position of the polarizing film is flexible, and the polarizing film is universally applicable.

[0025] In a possible implementation of the first aspect, the at least one curved mirror may include a first curved mirror and a second curved mirror configured to sequentially reflect the imaging light, which may be further projected onto a reflective element (e.g., a windshield) to form a virtual image received by the human eye.

[0026] In the above-described implementations of the present application, the display device may further include a curved mirror configured to reflect the imaging light, which can be implemented.

[0027] A second aspect of the present application further provides a display device, the display device including an image generating device, a screen, a screen support, and an optical filter. The image generating device is configured to generate imaging light carrying image information and emit the imaging light to the screen. The screen is configured to receive and display the imaging light generated by the image generating device. The screen support is configured to support the screen. In this embodiment of the present application, an edge of the screen support may protrude from an edge of the screen. The optical filter is disposed above the screen and configured to pass a light beam whose exit angle is within a preset threshold range. The light beam is propagated to the optical filter by the image generating device. The exit angle of the light beam passing through the optical filter is within a preset threshold range (e.g., the exit angle is ±10°). The preset threshold range may be set to a small value. Therefore, the optical filter used in the present application may also be referred to as a small-angle optical filter.

[0028] In the above implementation of the present application, a small-angle light filter is added above the screen, so that glare with a large exit angle cannot pass through. In this way, the glare of sunlight can be greatly reduced and the user experience can be improved.

[0029] In a possible implementation of the second aspect, the included angle between the light filter and the screen is greater than zero. In other words, the light filter and the screen may be disposed at a certain included angle, and the light filter and the screen are not parallel.

[0030] In the above implementations of the present application, the purpose of setting the included angle between the light filter and the screen is to prevent specular reflection and improve the user experience.

[0031] In a possible implementation of the second aspect, the display device may further include a polarizing film and a quarter-wave plate, wherein the polarizing film and the quarter-wave plate are both positioned on the same side of the screen, and sunlight is sequentially emitted into the polarizing film, the quarter-wave plate, and the screen, wherein the polarizing film is configured to transmit S-polarized light and block the transmission of P-polarized light, and the quarter-wave plate is configured to transmit the S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is transformed into P-polarized light after being reflected by the screen and then passing through the quarter-wave plate again.

[0032] In the above-described implementation of the present application, a combination of a polarizing film and a quarter-wave plate may be further used to eliminate glare. The polarizing film transmits S-polarized light, and the S-polarized light becomes P-polarized light after passing through the quarter-wave plate twice, so that the P-polarized light cannot be emitted from the polarizing film. Therefore, glare can be reduced.

[0033] In a possible implementation form of the second aspect, the display device may further include a dust cover, a polarizing film arranged on the dust cover, and a quarter-wave plate arranged on the screen, wherein sunlight is sequentially emitted into the dust cover, the polarizing film, the quarter-wave plate, and the screen, the polarizing film being configured to transmit S-polarized light and block the transmission of P-polarized light, and the quarter-wave plate being configured to transmit the S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is reflected by the screen and then passes through the quarter-wave plate again, and then changes to P-polarized light.

[0034] In the above-described implementation of the present application, a combination of a polarizing film and a quarter-wave plate is still used to eliminate glare, but the polarizing film is deployed under the dust cover (i.e., attached to the underside of the dust cover), and the polarizing film is flexibly deployed.

[0035] In a possible implementation form of the second aspect, the display device may further include a dust cover, a polarizing film arranged on the dust cover, and a quarter-wave plate arranged on the screen, wherein sunlight is sequentially emitted into the polarizing film, the dust cover, the quarter-wave plate, and the screen, the polarizing film being configured to transmit S-polarized light and block the transmission of P-polarized light, and the quarter-wave plate being configured to transmit the S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is reflected by the screen and then passes through the quarter-wave plate again, and then changes to P-polarized light.

[0036] In the above-described implementation of the present application, a combination of a polarizing film and a quarter-wave plate is still used to eliminate glare, but the polarizing film is deployed on top of the dust cover (i.e., attached to the top surface of the dust cover), and the polarizing film is flexibly deployed.

[0037] In a possible implementation of the second aspect, the display device may further include a dust cover, at least one curved mirror, a polarizing film disposed on one of the at least one curved mirrors (which may be referred to as a target curved mirror), and a quarter-wave plate disposed on the screen, where sunlight is sequentially emitted into the dust cover, the curved mirrors other than the target curved mirror among the at least one curved mirror, the target curved mirror (including the polarizing film), the quarter-wave plate, and the screen. Note that the polarizing film may be attached to any of the curved mirrors, and therefore the order in which sunlight is emitted into the curved mirrors is determined by the positional relationship between the target curved mirror (including the polarizing film) and the curved mirrors other than the target curved mirror among the at least one curved mirror. The above-mentioned emission order is merely an example and is not limited in this application. The polarizing film is configured to transmit S-polarized light and block P-polarized light. The quarter-wave plate is configured to transmit S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is converted to P-polarized light after being reflected by the screen and then passing through the quarter-wave plate again.

[0038] In the above implementation of the present application, the deployment position of the polarizing film is flexible, and the polarizing film is universally applicable.

[0039] In a possible implementation of the second aspect, the display device may further include a baffle, which is disposed around the image generating device, for example, around the entire periphery of the image generating device, and is configured to block stray light from reaching the screen support. The baffle may be in any form or shape that can be used to block light, and this is not a limitation of the present application.

[0040] In the aforementioned implementation of the present application, a baffle is added around the screen of the display device to block stray light from reaching the mechanical parts, i.e., the screen support, to prevent the screen support from burning out due to overheating, thereby extending the life of the display device and improving the user experience.

[0041] In a possible implementation of the second aspect, the characteristics of the baffle may include a high temperature resistant material.

[0042] In the aforementioned implementation of the present application, high temperature resistant materials are selected for the baffle to achieve better heat conduction effect.

[0043] In a possible implementation of the second aspect, the included angle between the plane on which the baffle is disposed and the plane on which the screen is disposed (the included angle may be referred to as the planar included angle) is within a preset angle range. For example, the planar included angle is equal to or greater than a first included angle value (e.g., 10°) and equal to or less than a second included angle value (e.g., 170°). The first included angle value and the second included angle value may be customized. For example, the value ranges of the two included angle values may be adjusted based on the height of the baffle. This is not a limitation of the present application.

[0044] In the above-described implementation of the present application, the angle of inclination of the baffle relative to the screen may be customized and is flexible.

[0045] In a possible implementation of the second aspect, the at least one curved mirror may include a first curved mirror and a second curved mirror configured to sequentially reflect the imaging light. The sequentially reflected imaging light may be further projected onto a reflective element (e.g., a windshield) to form a virtual image received by the human eye.

[0046] In the above-described implementations of the present application, the display device may further include a curved mirror configured to reflect the imaging light, which can be implemented.

[0047] A third aspect of the present application further provides a display device, the display device including an image generating device, a screen, a screen support, a polarizing film, and a quarter-wave plate. The image generating device is configured to generate imaging light carrying image information and emit the imaging light to the screen, where the imaging light may be referred to as first imaging light. The screen is configured to receive and display the first imaging light generated by the image generating device, and the screen support is configured to support the screen. In this embodiment of the present application, an edge of the screen support may protrude from an edge of the screen. Sunlight is sequentially emitted into the polarizing film, the quarter-wave plate, and the screen. The polarizing film is configured to transmit S-polarized light and block P-polarized light. The quarter-wave plate is configured to transmit the S-polarized light that has passed through the polarizing film, so that the S-polarized light that initially passes through the quarter-wave plate is reflected by the screen and then passes through the quarter-wave plate again, changing to P-polarized light.

[0048] In the above-described implementation of the present application, a combination of a polarizing film and a quarter-wave plate may be further used to eliminate glare. The polarizing film transmits S-polarized light, and the S-polarized light becomes P-polarized light after passing through the quarter-wave plate twice, so that the P-polarized light cannot be emitted from the polarizing film. Therefore, glare can be reduced.

[0049] In a possible implementation of the third aspect, both the polarizing film and the quarter wave plate may be placed on the screen.

[0050] In the above implementations of this application, the implementations of the polarizing film and quarter wave plate in the deployed position are described and are flexible.

[0051] In a possible implementation of the third aspect, the display device may further include a dust cover, and the polarizing film may be disposed on the dust cover (e.g., deployed on the upper or lower surface of the dust cover). In this case, when the polarizing film is deployed on the lower surface of the dust cover, sunlight is sequentially emitted into the dust cover, polarizing film, quarter-wave plate, and screen; or when the polarizing film is deployed on the upper surface of the dust cover, sunlight is sequentially emitted into the polarizing film, dust cover, quarter-wave plate, and screen. Alternatively, the polarizing film may be disposed on one curved mirror (which may be referred to as a target curved mirror) of the at least one curved mirror. In this case, sunlight is sequentially emitted into the dust cover, the curved mirror other than the target curved mirror of the at least one curved mirror, the target curved mirror (including the polarizing film), the quarter-wave plate, and screen. It should be noted that since the polarizing film may be attached to any of the curved mirrors, the order in which sunlight is radiated into the curved mirrors is determined by the positional relationship between the target curved mirror (including the polarizing film) and the curved mirrors other than the target curved mirror in the at least one curved mirror. The above radiation order is merely an example and is not limited in this application.

[0052] In the above implementation of the present application, the deployment position of the polarizing film is flexible, and the polarizing film is universally applicable.

[0053] In a possible implementation of the third aspect, the display device may further include a light filter whose output angle is within a preset threshold range (e.g., the output angle is ±10°). In this embodiment of the present application, the preset threshold range may be set to a small value. Therefore, the light filter used in the present application may also be referred to as a small-angle light filter. The light filter is disposed above the screen and configured to pass a light beam whose output angle is within the preset threshold range, and the light beam is transmitted to the light filter by the image generation device.

[0054] In the above implementation of the present application, a small-angle light filter is added above the screen, so that the glare with a large exit angle cannot pass through. In this way, the glare of sunlight can be greatly reduced.

[0055] In a possible implementation of the third aspect, the included angle between the light filter and the screen is greater than zero. In other words, the light filter and the screen may be disposed at a certain included angle, and the light filter and the screen are not parallel.

[0056] In the above implementations of the present application, the purpose of setting the included angle between the light filter and the screen is to prevent specular reflection and improve the user experience.

[0057] In a possible implementation of the third aspect, the display device may further include a baffle, which is disposed around the image generating device, for example, around the entire periphery of the image generating device, and is configured to block stray light from reaching the screen support. The baffle may be in any form or shape that can be used to block light, and this is not a limitation of the present application.

[0058] In the aforementioned implementation of the present application, a baffle is added around the screen of the display device to block stray light from reaching the mechanical parts, i.e., the screen support, to prevent the screen support from burning out due to overheating, thereby extending the life of the display device and improving the user experience.

[0059] In a possible implementation of the third aspect, the characteristics of the baffle may include a high temperature resistant material.

[0060] In the aforementioned implementation of the present application, high temperature resistant materials are selected for the baffle to achieve better heat conduction effect.

[0061] In a possible implementation of the third aspect, the included angle between the plane on which the baffle is disposed and the plane on which the screen is disposed (the included angle may be referred to as the planar included angle) is within a preset angle range. For example, the planar included angle is equal to or greater than a first included angle value (e.g., 10°) and equal to or less than a second included angle value (e.g., 170°). The first included angle value and the second included angle value may be customized. For example, the value ranges of the two included angle values may be adjusted based on the height of the baffle. This is not a limitation of the present application.

[0062] In the above-described implementation of the present application, the angle of inclination of the baffle relative to the screen may be customized and is flexible.

[0063] In a possible implementation of the third aspect, the at least one curved mirror may include a first curved mirror and a second curved mirror configured to sequentially reflect the imaging light, which may be further projected onto a reflective element (e.g., a windshield) to form a virtual image received by the human eye.

[0064] In the above-described implementations of the present application, the display device may further include a curved mirror configured to reflect the imaging light, which can be implemented.

[0065] A fourth aspect of the present application provides a vehicle comprising a display device according to the first aspect or any of the optional implementation forms of the first aspect, the second aspect or any of the optional implementation forms of the second aspect, and the third aspect or any of the optional implementation forms of the third aspect, and the display device is installed in the vehicle.

[0066] In a possible implementation of the fourth aspect, the vehicle may further include a reflective element (e.g., a windshield), and the display device is configured to project the imaging light onto the reflective element, and the reflective element is configured to reflect the imaging light to form a virtual image, such that the virtual image is received by the human eye. [Brief explanation of the drawings]

[0067] [Figure 1] 1 is a diagram of a structure of a display device according to an embodiment of the present application; [Figure 2] FIG. 10 is a diagram of the relationship between the baffle and the protrusion size of the edge of the screen support according to one embodiment of the present application. [Figure 3] FIG. 10 is a diagram of the planar included angle between the baffle and the screen according to an embodiment of the present application. [Figure 4] FIG. 10 is a diagram of a comparison of energy simulation results of solar load on a screen support according to an embodiment of the present application. [Figure 5] FIG. 2 is a diagram of another structure of a display device according to an embodiment of the present application. [Figure 6] FIG. 2 is a diagram of another structure of a display device according to an embodiment of the present application. [Figure 7] FIG. 2 is a diagram of another structure of a display device according to an embodiment of the present application. [Figure 8] FIG. 2 is a diagram of another structure of a display device according to an embodiment of the present application. [Figure 9] 1 illustrates a display device installed in a vehicle according to an embodiment of the present application; [Figure 10] 1 is a diagram of a possible functional framework of a vehicle according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0068] The embodiments of the present application provide a display device and a transportation means, in which a baffle is added around the periphery of the screen of the display device to block stray light from reaching the mechanical parts, i.e., the screen support, in order to prevent the screen support from burning out due to overheating, thereby extending the life of the display device, reducing user costs, and improving user experience.

[0069] In the specification, claims, and accompanying drawings of this application, the terms "first," "second," etc. are intended to distinguish between similar objects, but do not necessarily indicate a particular order or sequence. It should be understood that terms so used are interchangeable under appropriate circumstances and are merely a mode of identification used when objects having the same attributes are described in embodiments of this application. Furthermore, the terms "include" and "have," as well as any other variations, are meant to cover non-exclusive inclusions, such that a process, method, system, product, or device comprising a series of units is not necessarily limited to those units, but may include other units not expressly listed or inherent in such process, method, system, product, or device.

[0070] The application scenario of the display device in this application may be a device such as a HUD, an in-vehicle display, a projector, a desktop display, an augmented reality (AR) display, or a virtual reality (VR) display. For products deployed with a display device, direct sunlight has a significant impact on both the product and the user experience. A HUD is used as an example. Direct sunlight on the mechanical parts of the HUD (e.g., the screen support) will overheat the mechanical parts, thereby shortening the lifespan of the display device. If the mechanical parts are not made of high-temperature resistant materials, the mechanical parts may be burned.

[0071] Therefore, the present application provides a display device. For ease of explanation, the following embodiments of the present application use a HUD as an example to describe the structure of the display device. FIG. 1 is a diagram of the structure of a display device according to one embodiment of the present application. As shown in FIG. 1, the display device includes an image generating device 101, a screen 102, a screen support 103, and a baffle 104. The image generating device 101 is configured to generate imaging light carrying image information and emit the imaging light to the screen, where the imaging light may be referred to as first imaging light. The screen 102 may also be referred to as an imaging screen (e.g., a diffuser screen) and is configured to receive and display the first imaging light generated by the image generating device 101. The screen support 103 is configured to support the screen 102. In this embodiment of the present application, the edges of the screen support 103 may protrude from the edges of the screen 102 (as shown in FIG. 1). The baffles 104 are arranged around the image generating device 101, for example, around the entire periphery of the image generating device, and are configured to block stray light from reaching the screen support 103. The baffles 104 may be of any form or shape that can be used to block light, which is not a limitation of the present application. Note that FIG. 1 illustrates the baffles 104 from the perspective of the main field of view, and only the baffles on the left and right sides are shown; the front and rear baffles are not shown in FIG. 1. Furthermore, it should be noted that the relative distances between the image generating device 101, the screen 102, the screen support 103, and the baffles 104, the sizes of the image generating device 101, the screen 102, the screen support 103, and the baffles 104 shown in FIG. 1 are all examples and are intended merely to illustrate the relative positional relationships between the image generating device 101, the screen 102, the screen support 103, and the baffles 104, and do not limit actual applications. For example, the relative position between the image generating device 101 and the screen 102 in Fig. 1 is just an example. During actual application, the image generating device 101 and the screen 102 are separated by a certain distance (which is determined based on a specific application scenario), which is not specifically limited in this application.The same applies to the other accompanying drawings that follow, which will not be described in detail below.

[0072] It should be noted that in some implementations of the present application, the baffles 104 may be arranged at only one position around the entire periphery of the image generating device 101. For example, the baffles 104 may be arranged only on two opposing sides of the periphery of the image generating device 101. In this way, the function of partially blocking stray light reaching the screen support 103 can still be implemented. For ease of explanation, the following embodiments of the present application will use an example in which the baffles 104 are arranged around the entire periphery of the image generating device 101. It should be noted that in this specification, there may be one or more baffles 104 arranged around the periphery of the image generating device 101, or the baffles 104 may be an entire baffle formed integrally. For example, when the baffles 104 are arranged around the entire periphery of the image generating device 101, four baffles 104 may surround the image generating device 101 together, or the entire baffle 104 may be curved and surround the screen 102. This is not specifically limited in the present application. For ease of explanation, in the following embodiments of the present application, an example in which four baffles 104 together surround the image generation device 101 is used for illustration.

[0073] Optionally, an optical element such as a light path folding mirror or a reflecting mirror may be further disposed after the screen 102 and configured to project the first imaging light on the screen 102 onto a reflective element, so that a virtual image formed on the reflective element is received by the human eye. In one example, the optical element in the HUD may be two curved mirrors. As shown in FIG. 1 , the two curved mirrors are referred to as the first curved mirror 105 and the second curved mirror 106, respectively. The first curved mirror 105 is configured to reflect the first imaging light to obtain a first-reflected imaging light. The second curved mirror 106 is configured to reflect the first-reflected imaging light to obtain a second-reflected imaging light, which may be referred to as a second imaging light. The second imaging light may be further projected onto the windshield (e.g., after passing through a dust cover) to form a virtual image received by the human eye. Note that there may be multiple sources of stray light blocked by the baffle 104. In one example, the stray light may be stray light obtained by irradiating sunlight onto a first curved mirror 105 and then reflecting the sunlight from the first curved mirror 105 onto a second curved mirror 106.

[0074] It should be noted that in some implementations of the present application, the height of the baffle 104 may be set based on the size of the screen support 103, and the height of the baffle 104 is adjusted to block stray light reaching the screen support 103. For example, see FIG. 2. The greater the edge of the screen support 103 protrudes from the edge of the screen 102, the greater the height of the baffle 104 may be set, for example, to h1 shown in partial view (a) of FIG. 2. Conversely, the height of the baffle 104 may be set to a smaller value, for example, h2 shown in partial view (b) of FIG. 2, where h1 > h2. In this way, most of the stray light reaching the screen support 103 can be blocked. This significantly reduces the optical power on the screen support, prevents the screen support 103 from burning out due to overheating, and improves the safety of product use. Furthermore, when the baffles 104 are set high, stray light from the first curved mirror 105 to the second curved mirror 106 can be further blocked, thereby further reducing the optical power of the second curved mirror 106 and extending the life of the second curved mirror 106. It should be noted that, in this specification, when four baffles 104 surround the image generating device 101 together, the heights of the four baffles may be constant or different. The height value of each baffle is not limited in this application and may be set based on the application scenario. Similarly, when the entire integrally formed baffles surround the image generating device 101, the heights of the baffles at all positions may be constant or different. This will not be described in detail here.

[0075] It is further noted that in some other implementations of the present application, the baffle 104 may be made of a high-temperature resistant material for better heat conduction. For example, the baffle may be made of a single metal (such as iron, copper, or aluminum) or a metal alloy (e.g., steel, brass, or aluminum alloy), or may be made of another non-metallic high-temperature resistant material (e.g., a high-temperature resistant polymer or fiber material). This is not specifically limited in the present application.

[0076] In addition, in some implementations of the present application, the included angle between the plane on which the baffle 104 is disposed and the plane on which the screen 102 is disposed (this included angle may be referred to as the planar included angle for short) may also be set based on actual requirements. Specifically, the planar included angle between the baffle 104 and the screen 102 may be within a preset angle range, for example, greater than or equal to a first included angle value (e.g., 20°) and less than or equal to a second included angle value (e.g., 160°). The first included angle value and the second included angle value may be user-defined, for example, the value ranges of the two included angle values may be adjusted based on the height of the baffle 104. This is not limited in the present application. See, for example, FIG. 3 . Partial view (a) of Figure 3 shows that the planar included angle between the four baffles 104 around the entire periphery of the screen 102 and the screen 102 is 90°, and partial view (b) of Figure 3 shows that the planar included angle between the four baffles 104 around the entire periphery of the screen 102 and the screen 102 is 120°.

[0077] 3 shows that the values of the included planar angles between the four baffles 104 and the screen 102 are the same around the entire periphery of the screen 102. In some application scenarios, the included planar angles between the four baffles 104 and the screen 102 may be different. For example, the included planar angle between two opposing baffles 104 and the screen 102 may be 60°, and the included planar angle between two other opposing baffles 104 and the screen 102 may be 120°. Specifically, the specific values of the included planar angles between each baffle 104 and the screen 102 are not limited in this application.

[0078] It should be further noted that in some implementations of the present application, the height of the baffle 104 may be set based on the size of the screen support 103 or based on the value of the included planar angle between the baffle 104 and the screen 102. In one example, when the included planar angle is 90°, the height of the baffle 104 may be set to a smaller value. When the included planar angle is between 20° and 90°, the height of the baffle 104 is negatively correlated with the value of the included planar angle (i.e., a larger included planar angle indicates a smaller height). When the included planar angle is between 90° and 160°, the height of the baffle 104 is positively correlated with the value of the included planar angle (i.e., a larger included planar angle indicates a larger height).

[0079] In order to provide a more intuitive understanding of the beneficial effects brought about by the embodiments of the present application, the following further compares the technical effects brought about by the embodiments of the present application. Please refer to Figure 4. Figure 4 is a diagram comparing the energy simulation results of the solar load of the screen support 103. The units of the abscissa and ordinate in (a) and (b) of Figure 4 are both millimeters. Figure 4(a) shows the case where no baffle is added. When no baffle is added, the incident power of the screen support is 2.6 W, and the maximum power density is 10609 W / m 2 Figure 4(b) shows the case where a baffle is added. When the baffle is added, the incident power at the screen support is 0.04 W, and the maximum power density is 3607 W / m 2 It can be seen that for a display device with a baffle, both the incident power and the maximum power density at the screen support are significantly reduced.

[0080] In related products where display devices are deployed, direct sunlight radiated onto mechanical components of the display device can overheat the mechanical components. In addition, direct sunlight radiated onto an internal mirror of the display device (e.g., a curved mirror in a HUD) or light reflected by the mechanical components can form a white spot (i.e., glare) in the field of view when viewed by the human eye, thereby affecting the user experience (e.g., driving). To reduce the impact of glare, in some implementations of the present application, glare can be further removed by adding a small-angle optical filter, a polarizing film, a quarter-wave plate, or the like above the screen. The two methods reduce most of the glare incident on and reflected from the screen. Details are described separately below.

[0081] 1. Add a light filter whose exit angle is within a preset threshold range above the screen.

[0082] Specifically, see FIG. 5. In FIG. 5, an example in which the display device is a HUD is still used for explanation. In this embodiment of the present application, a light filter 107 whose output angle is within a preset threshold range (e.g., the output angle is ±5°) may be added above the screen 102 of the display device, and is configured to pass light beams whose output angle is within the preset threshold range. The light beams are transmitted to the light filter 107 by the image generation device 101. In this embodiment of the present application, the preset threshold range may be set to a small value. Therefore, the light filter used in this application may also be called a small-angle light filter. In other words, the light filter allows only light beams within a small angle range, for example, light beams with angles of ±5°, to be emitted from the light filter, and light beams with larger angles cannot pass. In this application, the imaging light generated by the image generation device 101 is a small-angle light beam and can pass through the light filter 107. Large-angle glare formed through reflection after the screen 102 is directly illuminated by the sun cannot pass through the light filter 107. In this way, the glare of sunlight can be significantly reduced. It should be noted that the type of light filter used is not limited in this application.

[0083] 5, a HUD is used as an example for explanation. Accordingly, the HUD has a first curved mirror 105 and a second curved mirror 106. To prevent specular reflection, the light filter 107 and the screen 102 may be disposed at an included angle. Specifically, the included angle between the light filter 107 and the screen 102 is greater than zero (i.e., the light filter 107 and the screen 102 are not parallel).

[0084] It should be noted that in this embodiment of the present application, the light filter 107 and the screen 102 are disposed at an included angle, and may be set in the tilted manner shown in Figure 5 or the tilted manner shown in Figure 6. Furthermore, the tilt angle (i.e., the included angle) may be set based on a specific application scenario, which is not limited in the present application.

[0085] It should be further noted that in FIG. 5, a HUD is used as an example. In some other implementations of the present application, the display device may not require modules such as the first curved mirror 105, the second curved mirror 106, and the dust cover, or may add or remove some other modules based on application requirements. This is not limited in the present application. However, the image generating device 101, the screen 102, the screen support 103, and the optical filter 107 are essential modules.

[0086] 5, it should be noted that the light filter 107 is deployed on the upper side of the baffle 104 (i.e., the baffle 104 is used as a supporting mechanical part for the light filter 107), i.e., the function of preventing the screen support part 103 from overheating and the function of preventing solar glare are implemented in a combined manner of "baffle 104 + light filter 107". However, in some other implementation forms of the present application, the light filter 107 may be deployed independently, i.e., not deployed on the upper side of the baffle 104, but supported by additional supporting mechanical parts (e.g., four supports), i.e., only the "light filter 107" is used to implement the function of preventing solar glare. During practical application, a solution may be selected based on functional requirements, which is not limited in the present application.

[0087] 2. Add a polarizing film and a quarter-wave plate above the screen.

[0088] In this embodiment of the present application, a combination of a polarizing film and a quarter-wave plate may alternatively be used to eliminate glare. Specifically, both the polarizing film and the quarter-wave plate are disposed above the screen. The polarizing film is configured to transmit S-polarized light and block P-polarized light, i.e., the polarizing film transmits S-polarized light and does not transmit P-polarized light (in other words, P-polarized light cannot be emitted from the polarizing film). The quarter-wave plate is configured to convert S-polarized light into P-polarized light when the S-polarized light passes through the quarter-wave plate for the second time, i.e., the S-polarized light becomes P-polarized light after passing through the quarter-wave plate twice. In this embodiment of the present application, specific ways of arranging the polarizing film and the quarter-wave plate may include, but are not limited to, the following ways:

[0089] (1) The polarizing film and quarter-wave plate are above the screen.

[0090] Specifically, see FIG. 7 (using a HUD as an example). A polarizing film 108 and a quarter-wave plate 109 are added directly above the screen 102, with the polarizing film 108 located above the quarter-wave plate 109. Note that in this specification, the polarizing film 108 and the quarter-wave plate 109 are bonded together. FIG. 7 is used to illustrate the operating principle of the polarizing film 108 and the quarter-wave plate 109. Therefore, the polarizing film 108 and the quarter-wave plate 109, which are separated in the figure, may be in complete contact with each other without any gap, or a gap may be provided between the polarizing film 108 and the quarter-wave plate 109 (for example, glass may be used for separation). This is not specifically limited in the present application. When sunlight (including P-polarized light, shown by the dashed line in FIG. 8, and S-polarized light, shown by the solid line) passes through the polarizing film 108, the S-polarized light is transmitted, and after passing twice through the quarter-wave plate 109, the S-polarized light becomes P-polarized light. Since the P-polarized light cannot be emitted from the polarizing film 108, the risk of glare is reduced.

[0091] It is further noted that in this embodiment of the present application, the quarter-wave plate 109 may be attached to the screen 102 (for ease of illustrating the principle in FIG. 7, the quarter-wave plate 109 and the screen 102 are parallel) or may be deployed independently. However, it must be ensured that the S-polarized light transmitted through the polarizing film 108 is not perpendicularly incident on the quarter-wave plate 109. This is to avoid the problem that the polarization state is not completely converted and the light is prone to becoming disordered when it passes through the polarizing film and the quarter-wave plate at different angles.

[0092] It is further noted that the polarizing film 108 transmits S-polarized light and blocks P-polarized light. In some other implementations of the present application, a polarizing film that transmits P-polarized light and blocks S-polarized light may alternatively be used. In this case, in FIG. 7, the dashed line indicates S-polarized light and the solid line indicates P-polarized light, and other processes are similar. Details will not be described here.

[0093] Similarly, in Figure 7, a HUD is used as an example. In some other implementations of the present application, the display device may not require modules such as the first curved mirror 105, the second curved mirror 106, and the dust cover, or may add or remove some other modules based on application requirements. This is not limited in the present application. However, the image generating device 101, the screen 102, the screen support 103, the polarizing film 108, and the quarter-wave plate 109 are essential modules.

[0094] (2) The polarizing film is deployed on the dust cover, and the quarter-wave plate is above the screen.

[0095] Specifically, refer to FIG. 8 (a HUD is used as an example). In this embodiment of the present application, the polarizing film 108 is deployed on the dust cover (as shown by the double dashed line attached to the dust cover in FIG. 8), and the dust cover on which the polarizing film 108 is deployed may be called a polarizing dust cover (in a HUD, the dust cover is disposed above the curved mirror, so the dust cover on which the polarizing film 108 is deployed is also disposed above the screen 102). The quarter-wave plate 109 is located above the screen 102 (e.g., attached to the screen 102 or deployed independently). When sunlight is irradiated into the polarizing dust cover, only S-polarized light can pass through. The S-polarized light is converted to P-polarized light after passing through the quarter-wave plate twice and cannot pass through the polarizing dust cover. Therefore, glare can be reduced.

[0096] Similarly, the polarizing film 108 transmits S-polarized light and blocks P-polarized light. In some other implementations of the present application, a polarizing film that transmits P-polarized light and blocks S-polarized light may alternatively be used. In this case, in FIG. 8, the dashed line indicates S-polarized light and the solid line indicates P-polarized light, and other processes are similar. Details will not be described here.

[0097] It should be noted that the above two methods in this application are two typical methods for arranging the polarizing film and the quarter-wave plate. In some other implementations of this application, for example, the quarter-wave plate 109 may be attached to the polarizing film 108 to form a composite film, and then the composite film may be disposed on the dust cover. The specific arrangement positions of the polarizing film 108 and the quarter-wave plate 109 are not limited in this application.

[0098] Similarly, in FIG. 7 or FIG. 8 , in addition to the polarizing film 108 and the quarter-wave plate 109, a baffle 104 is also present. The baffle 104 may be used as a supporting mechanical part for the quarter-wave plate 109 (or a composite film of the polarizing film 108 and the quarter-wave plate 109). Specifically, the functions of preventing the screen support portion 103 from overheating and preventing solar glare are implemented by the combination of the baffle 104, the polarizing film 108, and the quarter-wave plate 109. However, in some other implementations of the present application, the polarizing film 108 and the quarter-wave plate 109 may be deployed independently, i.e., the baffle 104 is not required, and only the polarizing film 108 and the quarter-wave plate 109 are used to implement the function of preventing solar glare. During practical application, a solution may be selected based on functional requirements, which is not limited in the present application.

[0099] It should be further noted that in some other implementations of the present application, in order to enhance the function of preventing solar glare, the function of preventing the screen support 103 from overheating and better preventing solar glare is implemented by a combination of "baffle 104 + optical filter 107 + polarizing film 108 and quarter-wave plate 109," or only the function of better preventing solar glare is implemented by a combination of "optical filter 107 + polarizing film 108 and quarter-wave plate 109." The arrangement of the baffle 104, optical filter 107, polarizing film 108, and quarter-wave plate 109 is similar to the above-mentioned independently deployed process. In practical application, only the combination is required. For details, please refer to the above description. The details will not be repeated here.

[0100] The display device provided in the embodiments of the present application can be used in fields such as intelligent terminals, intelligent driving, etc. to display images, so the following describes several application scenarios implemented in products.

[0101] (1) The display device is a HUD.

[0102] In a possible application scenario, the display device provided in this embodiment of the present application may be a HUD. The HUD projects navigation information, instrument information, etc. into the driver's forward field of view, preventing the driver from lowering their eyes to view the information and affecting driving safety. After the image projected by the HUD is reflected by the windshield, a virtual image is formed outside the vehicle. Types of HUDs include, but are not limited to, windshield (W)-HUDs, augmented reality head-up displays (AR-HUDs), etc. During the driver's driving of a vehicle, sunlight is directly emitted into the curved mirror inside the HUD or mechanical parts, and the reflected light is then seen by the driver. As a result, a white spot is formed in the field of view, affecting driving. Therefore, the HUD provided in this embodiment of the present application can reduce the effects of glare. For example, the polarizing film, quarter-wave plate, baffle, and / or small-angle optical filter in this embodiment of the present application may be disposed within a HUD having a double concession structure proposed by Nippon Seiki to extend the life of the HUD and / or reduce the effects of glare.

[0103] (2) The display device is a projector.

[0104] In a possible application scenario, the display device provided in this embodiment of the present application may be a projector, which can project images onto a wall or a projection screen. In some special usage scenarios, such as outdoor camping or team building, during the user's viewing process, sunlight may be directly radiated onto the mechanical components inside the projector, and the reflected light may then be seen by the human eye. As a result, a white spot may be formed in the field of view, affecting the viewing experience. Therefore, the projector provided in this embodiment of the present application can also reduce the effects of glare.

[0105] (3) The display device is a near display (NED) device.

[0106] In a possible application scenario, the display device provided in this embodiment of the present application may be an NED device, and the NED device may be an AR device or a VR device. The AR device may include, but is not limited to, AR glasses and AR helmets, and the VR device may include, but is not limited to, VR glasses and VR helmets. AR glasses are used as an example. A user can wear the AR glasses to play games, watch videos, and participate in virtual meetings. In some usage scenarios, for example, when a user plays games outdoors, sunlight may be directly emitted onto the inner mechanical parts of the AR glasses during the user's use, and the reflected light may be seen by the human eye. As a result, a white spot may be formed in the field of view, affecting the viewing experience. Therefore, the NED device provided in this embodiment of the present application can also reduce the effects of glare and improve the user experience.

[0107] It should be noted that the display device described in this application may be applied to the aforementioned application scenarios, and may further be applied to sub-fields within the display field, and no examples are provided here again.

[0108] An embodiment of the present application further provides a vehicle, wherein any one of the aforementioned display devices is installed in the vehicle. FIG. 9 is a diagram illustrating a display device 901 installed in a vehicle according to an embodiment of the present application. The windshield of the vehicle can be used as a curved mirror or a lens. When the windshield is used as a curved mirror, the display device 901 and the driver or passenger are located on the same side of the windshield. When the windshield is used as a lens, the display device 901 and the driver or passenger are located on different sides of the windshield. The display device 901 is configured to output imaging light. The windshield is used to reflect or transmit the imaging light to form a virtual image. The virtual image is on one side of the windshield, and the driver or passenger is on the other side of the windshield. The reflected or transmitted imaging light is irradiated onto the eyes of the driver or passenger.

[0109] For example, the vehicle may be a car, truck, motorcycle, bus, boat, airplane, helicopter, lawn mower, recreational vehicle, playground vehicle, construction device, tram, golf cart, train, pushcart, etc. This is not specifically limited in the embodiments of the present application. The display device 901 may be installed on the instrument panel (IP) dashboard of the vehicle, may be located in the passenger seat or driver's position, or may be installed behind the seat. When used in a vehicle, the display device 901 may be called a HUD and may be configured to display navigation information, vehicle speed, electricity / fuel amount, etc.

[0110] 10 is a diagram of a possible functional framework of a vehicle according to one embodiment of the present application. As shown in FIG. 10, the functional framework of the vehicle may include various subsystems, such as a control system 14, a sensor system 12, one or more peripheral devices 16 (one is used as an example in the figure), a power source 18, a computer system 20, and a display system 32. Optionally, the vehicle may further include another functional system, such as an engine system that powers the vehicle, which is not limited herein in the present application.

[0111] The sensor system 12 may include several detection devices. The detection devices can sense measured information and convert the sensed information into an electrical signal or another form of information required for output according to a specific rule. As shown in the figure, the detection devices may include a global positioning system (GPS), a vehicle speed sensor, an inertial measurement unit (IMU), a radar unit, a laser range finder, a camera device, a wheel speed sensor, a steering sensor, a gear sensor, or other elements used for automatic detection, which is not limited in this application.

[0112] The control system 14 may include several elements, such as a steering unit, a brake unit, a lighting system, an autonomous driving system, a map navigation system, a network time system, and an obstacle avoidance system, as shown in the figure. Optionally, the control system 14 may further include elements such as an accelerator controller and an engine controller configured to control the driving speed of the vehicle, which is not limited in this application.

[0113] The peripheral device 16 may include several elements, such as a communication system, a touch screen, a user interface, a microphone, and a speaker, as shown in the figure. The communication system is configured to implement network communication between the vehicle and other devices other than the vehicle. In practical application, the communication system may implement network communication between the vehicle and other devices using wireless communication technology or wired communication technology. Wired communication technology may mean that the vehicle communicates with other devices via network cables, optical fibers, etc.

[0114] The power source 18 represents a system used to provide power or energy to the vehicle and may include, but is not limited to, rechargeable lithium batteries and lead-acid batteries. In actual application, one or more battery components in the power source are configured to provide electrical energy or energy for starting the vehicle. The type and material of the power source are not limited in this application.

[0115] The implementation of some functions of the vehicle is controlled by a computer system 20. The computer system 20 may include one or more processors 2001 (one processor is shown in the figure as an example) and a memory 2002 (also called a storage device). During actual application, the memory 2002 may be internal to the computer system 20 or external to the computer system 20, for example, used as a cache in the vehicle, which is not limited in this application.

[0116] For a description of processor 2001, see the above description of processor 1001. Processor 2001 may include one or more general-purpose processors, such as a graphics processing unit (GPU). Processor 2001 may be configured to execute associated programs or instructions corresponding to programs stored in memory 2002 to implement corresponding functions of the vehicle.

[0117] The memory 2002 may include a volatile memory, such as a RAM. Alternatively, the memory may include a non-volatile memory, such as a ROM, a flash memory, or a solid state drive (SSD). Alternatively, the memory 2002 may include a combination of the aforementioned types of memory. The memory 2002 may be configured to store a program code or a set of instructions corresponding to the program code, so that the processor 2001 calls the program code or instructions stored in the memory 2002 to implement corresponding functions of the vehicle. The functions include, but are not limited to, some or all of the functions in the vehicle functional framework diagram shown in FIG. 13. In the present application, the memory 2002 may store a set of program code used for vehicle control. The processor 2001 may control safe driving of the vehicle by calling the program code. A manner of implementing safe driving of the vehicle will be specifically described in detail below in the present application.

[0118] Optionally, in addition to storing program code or instructions, memory 2002 may further store information such as road maps, driving routes, and sensor data. Computer system 20 may implement related functions of the vehicle in combination with other elements in the vehicle's functional framework diagram, such as sensors in the sensor system and GPS. For example, computer system 20 may control the driving direction, driving speed, etc. of the vehicle based on data input from sensor system 12. This is not a limitation of the present application.

[0119] The display system 32 may include several elements, such as the controller and display device 901 described above. The controller is configured to generate images (e.g., images including vehicle status such as vehicle speed and electricity / fuel amount, as well as images of augmented reality (AR) content) according to user commands and transmit the image content to the display device 901. The image generator in the display device 901 is configured to output imaging light carrying image information. The windshield reflects or transmits the imaging light, resulting in a virtual image corresponding to the image content being presented in front of the driver or passengers. It should be noted that the functions of some elements in the display system 32 may alternatively be implemented by another subsystem of the vehicle. For example, the controller may alternatively be an element in the control system 14.

[0120] FIG. 10 in the present application shows that four subsystems are included. The sensor system 12, the control system 14, the computer system 20, and the display system 32 are merely examples and do not constitute limitations. In actual applications, the vehicle may combine several elements in the vehicle based on different functions to obtain subsystems with corresponding different functions. In actual applications, the vehicle may include more or fewer systems or elements, which is not limited in the present application.

[0121] In the description herein, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more of the embodiments or examples.

[0122] The above description is merely a specific implementation form of the present application and is not intended to limit the scope of protection of the present application. Any variations or replacements that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application shall fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims. [Explanation of symbols]

[0123] 12 Sensor System 14 Control System 16 Peripheral Devices 18 Power supply 20 Computer Systems 32 Display System 101 Image generating device 102 screens 103 Screen support 104 Baffle 105 First curved mirror 106 Second curved mirror 107 Optical Filter 108 Polarizing Film 109 Quarter Wave Plate 901 Display Device 2001 processor 2002 Memory

Claims

1. A display device, an image generating device, a screen, a screen support, and a baffle; the image generating device is configured to generate imaging light carrying image information and to emit the imaging light onto the screen; the screen is configured to display the imaging light; the screen support is configured to support the screen; A display device, wherein the baffle is disposed around the periphery of the screen and is configured to block stray light from reaching the screen support.

2. The device of claim 1 , wherein the baffle features include a high temperature resistant material.

3. 3. The device of claim 1, wherein the included angle between the plane on which the baffle is disposed and the plane on which the screen is disposed is within a preset angle range.

4. the display device further comprises an optical filter; 4. The device of claim 1, wherein the light filter is positioned above the screen and configured to pass light beams having an exit angle within the preset threshold range, the light beams being propagated to the light filter by the image generating device.

5. The device of claim 4 , wherein the included angle between the light filter and the screen is greater than zero.

6. the display device further comprising a polarizing film and a quarter-wave plate disposed on the same side of the screen, wherein sunlight is sequentially emitted into the polarizing film, the quarter-wave plate, and the screen; the polarizing film is configured to transmit S-polarized light and block P-polarized light; 6. The device of claim 1, wherein the quarter-wave plate is configured to transmit the S-polarized light, such that the transmitted S-polarized light is converted to P-polarized light after being reflected by the screen and passing through the quarter-wave plate again.

7. the display device further comprises a dustproof cover, a polarizing film disposed on the dustproof cover, and a quarter-wave plate disposed on the screen, wherein sunlight is irradiated sequentially into the dustproof cover, the polarizing film, the quarter-wave plate, and the screen; the polarizing film is configured to transmit S-polarized light and block P-polarized light; 6. The device of claim 1, wherein the quarter-wave plate is configured to transmit the S-polarized light, such that the transmitted S-polarized light is converted to P-polarized light after being reflected by the screen and then transmitted through the quarter-wave plate again.

8. the display device further comprises a dustproof cover, a polarizing film disposed on the dustproof cover, and a quarter-wave plate disposed on the screen, wherein sunlight is irradiated sequentially into the polarizing film, the dustproof cover, the quarter-wave plate, and the screen; the polarizing film is configured to transmit S-polarized light and block P-polarized light; 6. The device of claim 1, wherein the quarter-wave plate is configured to transmit the S-polarized light, such that the transmitted S-polarized light is converted to P-polarized light after being reflected by the screen and then transmitted through the quarter-wave plate again.

9. the display device further comprises a dustproof cover, a curved mirror, a polarizing film disposed on the curved mirror, and a quarter-wave plate disposed on the screen, wherein sunlight is irradiated sequentially into the dustproof cover, the polarizing film, the curved mirror, the quarter-wave plate, and the screen; the polarizing film is configured to transmit S-polarized light and block P-polarized light; 6. The device of claim 1, wherein the quarter-wave plate is configured to transmit the S-polarized light, such that the transmitted S-polarized light is converted to P-polarized light after being reflected by the screen and then transmitted through the quarter-wave plate again.

10. the curved mirror comprises a first curved mirror and a second curved mirror; The device of claim 9 , wherein the first curved mirror and the second curved mirror are configured to sequentially reflect the imaging light.

11. A vehicle comprising a display device according to any one of claims 1 to 10, said display device being installed on said vehicle.

12. 12. The vehicle of claim 11, wherein the vehicle further comprises a reflective element, the display device configured to project imaging light onto the reflective element, and the reflective element configured to reflect the imaging light to form a virtual image.

Images