Vehicle and vehicle-mounted lifting display device thereof

Abstract

The utility model discloses a vehicle and a vehicle-mounted lifting display device thereof, and the vehicle-mounted lifting display device comprises a PGU unit which is configured to directly transmit light to the eyes of a driver through windshield glass so as to form a virtual image of a target image, target image light rays obtained after photoelectric conversion of the PGU unit are directly projected to the windshield glass without being reflected by the curved-surface reflecting mirror; and the shielding cover is configured to fixedly install the PGU unit at a specific angle and position, and the shielding cover shields an area outside the target image on the PGU unit. The space of a center console is saved while the high-quality imaging effect is kept.

Description

Technical Field

[0001] This utility model relates to the field of HUD technology, specifically to a vehicle and its on-board head-up display device. Background Technology

[0002] With the continuous development of vehicle technology, increasingly higher demands are being placed on the convenience and safety of vehicle use. For example, head-up displays (HUDs) have been widely used in vehicles. Traditional HUD systems generally employ a hyperboloid mirror design, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of the optical path of a HUD system constructed with a hyperboloid mirror, as described in the prior art. A typical HUD system includes an image generation unit (PGU), a hyperboloid mirror, and a windshield. In the prior art, image quality is optimized by improving the surface shape of the hyperboloid mirror; however, this design results in a large size (typically, the length, width, and height of the entire HUD system are 200mm-400mm, 150mm-300mm, and 100mm-200mm, respectively), limiting its applicability to large vehicles such as sedans and SUVs.

[0003] However, existing HUD systems, due to their size and installation limitations, occupy a lot of space on the center console, which is not conducive to the placement and installation of other smart devices.

[0004] Therefore, how to reduce the size of the HUD while maintaining high-quality imaging has become an urgent problem to be solved. Utility Model Content

[0005] Based on the above situation, the main purpose of this utility model is to provide a vehicle-mounted head-up display device and vehicle, so as to reduce the size of the HUD while maintaining high-quality imaging effect.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] In a first aspect, embodiments of this utility model disclose a vehicle-mounted head-up display device, comprising:

[0008] The PGU unit is configured to transmit light directly to the driver's eyes through the windshield to form a virtual image of the target image, and the target image light obtained after photoelectric conversion by the PGU unit is directly projected onto the windshield without being reflected by the curved reflector.

[0009] A viewing cover is configured to fix the PGU unit at a specific angle and position, and the viewing cover blocks the area on the PGU unit other than the target image.

[0010] Optionally, the PGU unit includes a backlight and an LCD panel, the LCD panel being used to generate a target image under illumination by the backlight.

[0011] Optionally, the viewing cover includes:

[0012] First surface;

[0013] The second surface is attached to the light-emitting surface of the PGU unit and at least blocks the area outside the target image on the LCD panel;

[0014] The light-transmitting groove extends through the first and second surfaces, allowing light from the target image to pass through the second surface onto the first surface and be projected directly onto the windshield.

[0015] Optionally, the viewing cover includes an enclosed arc-shaped light shield, which is disposed on the first surface between the PGU unit and the windshield; and the arc-shaped light shield has a notch near the windshield to provide a light path channel for the PGU unit to be projected onto the windshield.

[0016] Optionally, the curved sunshade has a flap that protrudes relative to the first surface, the target image area is located next to the edge of the flap, and the flap blocks light in the direction of the light reflected from the PGU unit toward the driver's seat of the windshield, the driver's seat direction being the direction from the passenger seat toward the driver's seat.

[0017] Optionally, the second surface of the viewing cover is provided with:

[0018] Adhesive surface;

[0019] The positioning connector is located on the outside of the mating surface. The positioning connector matches the positioning hole of the center console. When the connector is inserted into the center console, the mating surface closely fits the light-emitting surface of the PGU unit.

[0020] Optionally, the housing of the PGU unit is provided with several lugs, each lug having a fastening screw hole. The fastening screw hole corresponds to the pre-embedded screw hole on the center console, and the fastening screw hole and the pre-embedded screw hole cooperate to fix the PGU unit on the center console.

[0021] Optionally, the pre-embedded screw hole is a fixing hole and a pre-embedded nut, the pre-embedded nut being a metal nut with an outer dimension that matches the inner diameter of the fixing hole.

[0022] Optionally, the fixing hole is a square hole machined from a mold on the center console.

[0023] Secondly, this utility model discloses a vehicle, comprising:

[0024] Windshield;

[0025] Center console; and

[0026] The vehicle-mounted head-up display device disclosed in the first aspect above.

[0027] According to an embodiment of this utility model, a vehicle head-up display (HUD) device is disclosed. The PGU unit is configured to transmit light directly to the driver's eyes through the windshield to form a virtual image of the target image. The target image light obtained after photoelectric conversion by the PGU unit is projected directly onto the windshield without being reflected by a curved reflector. This eliminates the need for a curved reflector in the HUD system, avoiding the complexity of traditional hyperboloid reflectors and saving space on the center console. A viewing cover is used to fix the PGU unit at a specific angle and position, optimizing the reflection path of light from the light source to the driver's eyes, thereby improving the clarity and brightness of the virtual image. Furthermore, the viewing cover blocks the area on the PGU unit outside the target image, preventing stray light from entering this area and ensuring optimal display performance under various lighting conditions. In summary, this achieves high-quality imaging while saving center console space.

[0028] Other beneficial effects of this utility model will be explained in detail through the introduction of specific technical features and technical solutions in the specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by the technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0029] The embodiments of this utility model will now be described with reference to the accompanying drawings. In the drawings:

[0030] Figure 1 This is a schematic diagram of the optical path of a HUD system composed of hyperboloid mirrors in the prior art;

[0031] Figure 2 This is a schematic diagram of the optical path of a vehicle-mounted head-up display device disclosed in this embodiment;

[0032] Figure 3 This is an exploded view of an in-vehicle head-up display device and its assembly in a car, as disclosed in this embodiment.

[0033] Figure 4 This is a schematic diagram of the exploded internal structure of a display module disclosed in this embodiment;

[0034] Figure 5 This is an exploded view of a PGU unit housing disclosed in this embodiment;

[0035] Figure 6 This is a schematic diagram of the internal structure of a PGU unit disclosed in this embodiment;

[0036] Figure 7 This is a schematic diagram of the upward-viewing structure of a viewing cover disclosed in this embodiment;

[0037] Figure 8 This is a top view schematic diagram of a viewing cover structure disclosed in this embodiment. Detailed Implementation

[0038] The present invention will now be described based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0039] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0040] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0041] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] To achieve a small-sized HUD while maintaining high-quality imaging and saving center console space, this embodiment discloses an in-vehicle head-up display device. This device is suitable for vehicles with windshields. In the solution disclosed in this embodiment, the target image generated by the PGU unit is directly projected onto the windshield. Please refer to [reference needed]. Figure 2 , Figure 2 This is a schematic diagram of the optical path of a vehicle-mounted head-up display device disclosed in this embodiment, compared with... Figure 1 As can be seen, in this scheme, there are no curved reflectors in the optical path of the light emitted by the PGU unit, thereby reducing the size of the HUD device.

[0043] Please refer to Figure 2 The vehicle-mounted head-up display device disclosed in this embodiment includes: a PGU unit 1 and a viewing cover 2, wherein:

[0044] The PGU unit 1 is configured to transmit light directly to the driver's eyes through the windshield 100 to form a virtual image of the target image. Furthermore, the target image light obtained after photoelectric conversion by the PGU unit 1 is projected directly onto the windshield without being reflected by a curved reflector. In a specific embodiment, the PGU unit 1 can be implemented using a liquid crystal display device. In this embodiment, the target image obtained after photoelectric conversion by the liquid crystal display device is directly projected onto the windshield 100. That is, during the entire imaging light projection process, the target image light does not pass through and does not require a curved reflector, thereby reducing the overall size of the vehicle head-up display device.

[0045] The viewing cover 2 is configured to be fixedly mounted on the PGU unit 1 at a specific angle and position, and the viewing cover 2 blocks the area on the PGU unit 1 other than the target image. Please refer to [the relevant documentation] for specific implementation details. Figure 3 , Figure 3 This is an exploded view of an in-vehicle head-up display device assembled with a car, as disclosed in this embodiment. After determining the emission angle of the target image from the PGU unit 1, the PGU unit 1 can be fixed to the center console according to a specific light emission angle. A viewing cover 2 is then attached to the light-emitting surface of the PGU unit 1 to block the area outside the target image on the PGU unit 1, preventing stray light from entering the area outside the target image and ensuring optimal display performance under various lighting conditions. In practice, the viewing cover 2 should have a slot matching the size of the target image so that the target image light generated by the PGU unit 1 can be directly projected (without reflection) onto the windshield 100. The size of this slot should be sufficient to allow the target image light from the PGU unit 1 to exit.

[0046] Please refer to Figure 4 , Figure 4 This is an exploded view of the internal structure of a display module of a PGU unit disclosed in this embodiment. The PGU unit 1 includes a display module, which includes a backlight 11 and an LCD panel 13. The LCD panel 13 is used to generate a target image to be imaged under the illumination of the backlight and project it directly onto the windshield, wherein the projected light is not reflected by the curved reflector. Specifically, the LCD panel 13 can be implemented using, for example, TFT technology. The working principle of TFT-LCD is that after the LCD is illuminated by the backlight, the thin-film transistors integrated behind each pixel of the LCD panel drive the liquid crystal molecules to rotate and change the polarization state of the light source, thereby presenting different brightness and gray levels, and then presenting a color image through RGB color filters. Compared with other imaging methods in the prior art, LCD imaging is smaller and thinner, thus enabling small-size HUD systems.

[0047] Please refer to Figure 4 , Figure 5 and Figure 6 , Figure 5 This is an exploded view of a PGU unit casing disclosed in this embodiment. Figure 6 This is a schematic diagram of the internal structure of a PGU unit disclosed in this embodiment. In optional embodiments, please refer to... Figure 4 and Figure 6 The backlight 11 includes: a light guide plate 111, a middle frame 112, a first LED light strip 113a, and a second LED light strip 113b, wherein:

[0048] The light guide plate 111 is used to guide the light from the external light source to the LCD panel 13 after homogenization. Multiple imaging electrodes are distributed on the LCD panel 13.

[0049] The middle frame 112 accommodates and covers the outer side of the light guide plate 111. Specifically, please refer to... Figure 4 and Figure 6 The light guide plate 111 is set inside the middle frame 112, that is, the side of the light guide plate 111 is covered by the frame to fix the light guide plate 111, thereby saving space in the direction perpendicular to the LCD panel 13, making the structure of the PGU unit compact, and preventing stray light from entering from the side of the light guide plate 111.

[0050] Please refer to Figure 4 and Figure 6 The first LED light strip 113a and the second LED light strip 113b are respectively fixedly disposed on the outer sides of the two opposite long sides of the middle frame 112, and the first LED light strip 113a and the second LED light strip 113b respectively provide external light sources to the light guide plate 111. Specifically, compared with the prior art, which uses an LED light panel on the back of the light guide plate 111, in this embodiment, the LED light strips are disposed on the outer sides of the two opposite long sides of the middle frame 112. On the one hand, this can save space in the direction perpendicular to the LCD panel 13, making the structure of the PGU unit more compact. On the other hand, the use of the opposite first LED light strip 113a and the second LED light strip 113b on the outer sides of the two long sides can ensure the brightness of the light source.

[0051] Please refer to Figure 4 and Figure 6In an optional embodiment, the data driving interface of the LCD panel 13 is located at the top of the LCD panel 13; one end of the pixel data driving cable 131 is connected to the data driving interface, and the other end of the pixel data driving cable 131 is connected to the main control circuit board 15 equipped with a controller; the body of the pixel data driving cable 131 is bent downward from one end to the other end to form a receiving space; the receiving space covers part of the light guide plate 111 and part of the middle frame 112. In this embodiment, the LCD panel 13 and the main control circuit board 15 are connected by an FPC, which can save space; and the receiving space is formed by bending one end of the FPC and the other end, which can accommodate part of the light guide plate 111 and part of the middle frame 112, that is, it can cover the top of part of the light guide plate 111 and the middle frame 112, thereby avoiding misalignment of the various devices / components stacked between the LCD panel 13 and the main control circuit board 15, that is, the limiting between the various devices / components stacked between the LCD panel 13 and the main control circuit board 15 is achieved by reusing the FPC. It saves space and protects the stacked components.

[0052] In a specific embodiment, please refer to Figure 4 and Figure 5 The main control circuit board 15 is provided with a cable guide groove 150. The other end of the pixel data driving cable 131 passes through the cable guide groove 150 and is connected to the main control circuit board 15, so that the pixel data driving cable 131 provides clamping force to the light guide plate 111 and the middle frame 112 through one end and the other end. The main control circuit board 15 is generally fixed to the HUD device housing by screws or other means. In this embodiment, after the pixel data driving cable 131 passes through the cable guide groove 150, it can provide clamping force to the bending accommodating space through the main control circuit board 15, so that the LCD panel 13 and the stacked devices / components between it and the main control circuit board 15 can be better limited by the bending accommodating space, thereby better ensuring the tight stacking of the stacked devices / components.

[0053] By eliminating the need for two curved mirrors, the size of the HUD system can be significantly reduced. However, this also reduces image quality. To improve the imaging effect of the HUD system, this embodiment utilizes a combination of viewing covers to enhance the imaging performance. Specifically:

[0054] Please refer to Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of the upward-viewing structure of a viewing cover disclosed in this embodiment. Figure 8This is a top view schematic diagram of a viewing cover structure disclosed in this embodiment. The viewing cover 2 includes a first surface 21, a second surface 22, and a light-transmitting groove 23. The second surface 22 is attached to the light-emitting surface of the PGU unit 1 and at least blocks the area outside the target image of the LCD panel 13. The light from the target image of the PGU unit 1 passes from the second surface 22 to the first surface 21, through the light-transmitting groove 23, and is then directly projected onto the windshield. Specifically, in the specific implementation process, a positioning member can be provided on the second surface. During the assembly process, the viewing cover is directly installed at a specific position on the center console through the positioning member, so that the light-emitting surface of the PGU unit emits light towards the windshield at a specific angle. Specifically, the viewing cover 2 can be injection molded as a single piece to ensure positioning accuracy. The outline of the viewing cover 2 and the positioning member on the viewing cover 2 can be determined according to the position of the light path and the light source, so that the PGU unit is located at a specific light source position and emits light at a specific angle. In this embodiment, the contour of the second surface 22 corresponding to the position of the PUG unit matches the light-emitting surface of the PUG unit 1, thereby making the second surface 22 closely fit the light-emitting surface of the PUG unit, and the fitted portion at least blocks the area outside the target image of the PUG unit 1. Please refer to Figure 7 The outer periphery of the light-transmitting groove 23 is set as a plane that matches the PGU unit 1. This plane fits and blocks the area outside the target image of the PGU unit 1, thereby preventing stray light from entering the area outside the target image of the PGU unit 1. This reduces stray light reflected from the area outside the target image to the windshield, eliminates the influence of stray light, improves the brightness difference between the target image and the environment, and thus improves the imaging effect.

[0055] Please refer to Figure 8 In an optional embodiment, the viewing cover 2 includes an arc-shaped light shield 26, which is located between the LCD panel 13 and the windshield. The light shield 26 is arranged in an enclosing manner on the first surface 21 of the viewing cover 2, and an opening is provided on the arc-shaped light shield 26 near the windshield to provide a light path for the PGU unit 1 to be projected onto the windshield. In this embodiment, the enclosing arc-shaped light shield 26 with the opening can, on the one hand, block ambient light from directly hitting the target imaging area of ​​the PGU unit 1, thus avoiding interference from stray light; on the other hand, it allows light from the target imaging area to be smoothly projected onto the windshield.

[0056] Please refer to Figure 8In an optional embodiment, the arc-shaped sunshade 26 is provided with a flap 26a protruding relative to the first surface 21. The target image area of ​​the PGU unit 1 is disposed adjacent to the edge of the flap, and the blocking direction of the flap is the direction of light reflected from the PGU unit 1 toward the driver's seat of the windshield. The driver's seat direction is the direction from the passenger seat toward the driver's seat. Specifically, the flap 26a may be part of the arc-shaped sunshade 26 and is formed directly during injection molding; the flap 26a may be perpendicular to the surface where the PGU unit 1 is located. This arrangement can prevent ambient light from incident on the PGU unit 1. In this embodiment, the position of the warp plate 26a can be determined according to the position of the driver's seat. The main purpose is to avoid the direction of light reflected from the PGU unit 1 towards the windshield in the direction of the driver's seat. The direction of the driver's seat is the direction from the passenger seat to the driver's seat. This can prevent light from being reflected onto the windshield in front of the driver's seat, thereby reducing visual interference to the driver. Specifically, for left-hand drive vehicles, light should be prevented from being reflected to the left front of the driver's seat to reduce light interference to the driver and improve the driver's vision. For right-hand drive vehicles, light should be prevented from being reflected to the right front of the driver's seat.

[0057] In a specific embodiment, please refer to Figure 7 The second surface of the viewing cover 2 is provided with a bonding surface 24 and a positioning connector 25. The positioning connector 25 matches the positioning hole of the center console, and the bonding surface 24 tightly adheres to the PGU unit 1 when the connector 25 is inserted into the positioning hole of the center console. In specific implementation, for the PGU unit 1, when its outermost layer is an LCD panel 13, the bonding surface 24 tightly adheres to the PGU unit 1; when the outermost layer of the PGU unit 1 is a glass panel, the bonding surface 24 tightly adheres to the glass panel. At this time, the glass panel tightly adheres to the LCD panel 13, that is, the LCD panel 13 is always tightly adhered.

[0058] In a specific embodiment, please refer to Figure 4 The housing of the PGU unit 1 has several lugs 14, each lug 14 having a fastening screw hole. These fastening screw holes correspond to pre-embedded screw holes on the center console, and the fastening screw holes cooperate to fix the PGU unit 1 to the center console. Specifically, by aligning the fastening screw holes with the pre-embedded screw holes, workers can quickly fix the PGU unit 1 to the center console at a specific angle and position during assembly, and ensure that the light-emitting surface emits light towards the windshield at a specific angle. In other words, the relative positional relationship between the center console and the windshield 100 is fixed; therefore, by simply positioning the PGU unit and the visor 2 on the center console, the PGU unit can emit light towards the windshield 100 at a specific angle.

[0059] In a preferred embodiment, the pre-embedded screw hole comprises a fixing hole and a pre-embedded nut. The fixing hole is a square hole machined from a mold on the center console, and the pre-embedded nut is a metal nut with an outer dimension matching the inner diameter of the fixing hole. In this embodiment, using a mold to machine the square hole on the center console ensures positioning accuracy and prevents the nut in the square hole from shifting position. Because the square hole is precisely positioned, and the metal nut pre-embedded in the square hole is not easily deformed, the position of PGU unit 1 relative to the square hole is ensured to be accurate and not easily shifted. In other words, the position of PGU unit 1 relative to the center console is accurate, achieving precise light path for the light emitted from the light-emitting surface of PGU unit 1. It should be noted that, compared to the conventional self-tapping nuts or screw holes in the prior art, the pre-embedded metal nut is not easily deformed, thus avoiding the offset caused by the locking screw, thereby ensuring the accuracy of the emitted light path.

[0060] In an optional embodiment, the imaging effect can be further improved by a controller. Specifically, the controller outputs a blackening control signal to make the imaging brightness of the LCD panel 13 in areas outside the target image less than a preset threshold, so as to project light less than the ambient light. Specifically, the LCD panel 13 uses a row and column scan driving method to control the brightness change of each pixel. The LCD controller controls the orientation of the liquid crystal molecules of each pixel according to the input image signal to adjust its light transmittance, thereby realizing the display of the image. In a specific embodiment, the controller includes a pixel control circuit configured to set the pixel value outside the target imaging area to zero (of course, a certain error is allowed). The pixel control circuit can also directly turn off the pixels outside the target imaging area to achieve blackening processing.

[0061] In this embodiment, after the controller obtains the target image of the LCD panel 13, it controls the imaging brightness of the area outside the target image area to be less than a preset threshold (or sets it to 0), so that the light emitted from the area outside the target image is less than the ambient light. This makes the imaging brightness difference between the target image and its surroundings equal to the difference between the target image brightness and the ambient brightness. In contrast, if the area outside the target image is not controlled, the imaging brightness difference is the difference between the target image brightness, the ambient brightness, and the sum of stray light in the area outside the target image. Therefore, compared to the method of not controlling the area outside the target image, this embodiment can eliminate the influence of stray light, improve the brightness difference between the target image and the environment, and thus improve the imaging effect.

[0062] This embodiment uses the windshield as the imaging surface to form a virtual image. Specifically, utilizing the principle of light reflection, light rays emitted from the screen are reflected by the windshield, and the actual light rays enter the human eye. Their backward extensions converge at a point, ultimately presenting a dashed line. However, since the surface shape of the windshield is fixed, it cannot be optimized. That is, because the windshield is not a plane but a curved surface, the resulting image will have significant distortion. Therefore, distortion correction is needed to correct the virtual image into a regular image. Specifically, the target image can be inversely processed according to the distortion algorithm before being projected onto the windshield. In summary, in the vehicle head-up display device disclosed in this embodiment, the controller performs distortion correction processing on the target image and also blackens the pixels in the area outside the target image on the LCD panel.

[0063] This embodiment also discloses a vehicle, including:

[0064] The windshield, the center console, and the in-vehicle head-up display device disclosed in the above embodiments.

[0065] According to an embodiment of this utility model, a vehicle head-up display (HUD) device is disclosed. The PGU unit is configured to transmit light directly to the driver's eyes through the windshield to form a virtual image of the target image. The target image light obtained after photoelectric conversion by the PGU unit is projected directly onto the windshield without being reflected by a curved reflector. In other words, the curved reflector is eliminated from the HUD system, thus avoiding the complexity of traditional hyperboloid reflectors and saving space on the center console. A viewing cover is used to fix the PGU unit at a specific angle and position, optimizing the reflection path of light from the light source to the driver's eyes, thereby improving the clarity and brightness of the virtual image. Furthermore, the viewing cover blocks the area on the PGU unit outside the target image, preventing stray light from entering this area and ensuring optimal display performance under various lighting conditions. In summary, this achieves high-quality imaging while saving center console space.

[0066] It will be understood by those skilled in the art that the above-described preferred solutions can be freely combined and superimposed without conflict. The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings; for example, two consecutively indicated blocks may actually be executed substantially in parallel, or sometimes in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions. The numbering of each step in this document is for ease of explanation and reference only and is not intended to limit the order of execution. The specific execution order is determined by the technology itself, and those skilled in the art can determine various permissible and reasonable orders based on the technology itself.

[0067] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0068] It should be understood that the above-described embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this utility model, any obvious or equivalent modifications or substitutions made by those skilled in the art regarding the above details will be included within the scope of the claims of this utility model.

Claims

1. A vehicle-mounted head-up display device, characterized in that, include: The PGU unit (1) is configured to transmit light directly to the driver's eyes through the windshield (100) to form a virtual image of the target image, and the target image light obtained after photoelectric conversion by the PGU unit (1) is directly projected onto the windshield without being reflected by the curved reflector; A viewing cover (2) is configured to be fixedly installed on the PGU unit (1) at a specific angle and position, and the viewing cover (2) covers the area on the PGU unit (1) other than the target image.

2. The vehicle-mounted head-up display device as described in claim 1, characterized in that, The PGU unit (1) includes a backlight (11) and an LCD panel (13), wherein the LCD panel (13) is used to generate the target image under the illumination of the backlight (11).

3. The vehicle-mounted head-up display device as described in claim 1, characterized in that, The viewing cover (2) includes: First surface (21); The second surface (22) is attached to the light-emitting surface of the PGU unit and at least blocks the area outside the target image of the LCD panel (13); The light-transmitting groove (23) penetrates the first surface (21) and the second surface (22), through which the light of the target image passes from the second surface (22) to the first surface (21) and is directly projected onto the windshield.

4. The vehicle-mounted head-up display device as described in claim 3, characterized in that, The viewing cover (2) includes an enclosed arc-shaped light shield (26), which is disposed on the first surface (21) and located between the PGU unit (1) and the windshield; and the arc-shaped light shield (26) has a notch near the windshield to provide a light path channel for the PGU unit (1) to be projected onto the windshield.

5. The vehicle-mounted head-up display device as described in claim 4, characterized in that, The arc-shaped sunshade (26) is provided with a protruding flap relative to the first surface (21). The target image area is arranged next to the edge of the flap, and the blocking direction of the flap is the direction of light reflected by the PGU unit (1) toward the windshield driver's seat. The driver's seat direction is the direction from the passenger seat toward the driver's seat.

6. The vehicle-mounted head-up display device as described in claim 3, characterized in that, The second surface (22) of the viewing cover (2) is provided with: Adhesive surface (24); A positioning connector (25) is disposed on the outside of the mating surface (24). The positioning connector (25) matches the positioning hole of the center console. The mating surface (24) is tightly mated to the light-emitting surface of the PGU unit (1) when the connector (25) is inserted into the center console.

7. The vehicle-mounted head-up display device as described in claim 6, characterized in that, The housing of the PGU unit (1) is provided with a number of lugs (14), and each lug (14) is provided with a fastening screw hole. The fastening screw hole is corresponding to the pre-embedded screw hole on the center console. The fastening screw hole and the pre-embedded screw hole cooperate to fix the PGU unit (1) on the center console.

8. The vehicle-mounted head-up display device as described in claim 7, characterized in that, The pre-embedded screw hole is a fixing hole and a pre-embedded nut. The pre-embedded nut is a metal nut and its outer dimensions are adapted to the inner diameter of the fixing hole.

9. The vehicle-mounted head-up display device as described in claim 8, characterized in that, The fixing hole is a square hole machined from a mold on the center console.

10. A vehicle, characterized in that, include: Windshield; Center console; and The vehicle head-up display device as described in any one of claims 1-9.

Images