Head-up display system and vehicle

Abstract

The utility model discloses a head-up display system and a vehicle. The head-up display system comprises an image generation unit, a left reflector group, a right reflector group and a transparent imaging carrier, the transparent imaging carrier is used for receiving the left imaging light rays reflected by the left reflector group and reflecting the left imaging light rays to a preset left eye area to form a left virtual image, and is also used for receiving the right imaging light rays reflected by the right reflector group and reflecting the right imaging light rays to the preset left eye area to form a right virtual image; the left virtual image and the right virtual image have the same high and low positions and are horizontally adjacent, and each of the left virtual image and the right virtual image is provided with a plurality of sub virtual image parts displayed at different far and near positions. According to the scheme, the left imaging light and the right imaging light generated by the head-up display system can respectively enter the left eye and the right eye of a driver along different light paths, left imaging and right imaging do not interfere with each other and are independent, so that the problem that the image definition is reduced due to binocular parallax is reduced, the left virtual image and the right virtual image independently have a depth-of-field effect, and the image quality is improved. The immersion feeling is improved.

Description

Technical Field

[0001] This application relates to the technical field of head-up display, and particularly to a head-up display system and a vehicle. Background Art

[0002] A head-up display system (Head-up Display, abbreviated as HUD), also known as an automotive head-up display system, uses the principle of optical reflection to project driving assistance information, navigation information, inspection and control information, and ADAS (Advanced Driving Assistance System) information of a vehicle onto the windshield or about 2 m in front and above the tip of the engine hood in a projection manner. At the same time, warning information from various driving assistance systems can also be displayed, such as lane departure warnings, pedestrian avoidance warnings from a night vision assistance system with pedestrian recognition function, etc., to prevent the driver from frequently looking down at the instrument panel or in-vehicle screen during driving, enabling the driver to see important driving information such as speed and navigation without lowering the head or turning the head as much as possible, which plays a very good auxiliary role in driving safety.

[0003] The HUD projection technology mainly projects a real image generated by an image generation unit (PGU, Picture Generation Unit) onto a transparent medium (such as a windshield) in front of the driver through optical means. The windshield serves as a projection imaging carrier, and the real image is magnified and reflected by the windshield into the human eye.

[0004] After the real image generated by the PGU passes through the optical system, the same image is seen by both eyes of the driver. Due to processing errors and assembly accuracy problems of components such as mirrors in the optical system, there are inconsistencies in the size, distortion, and color of the images seen by both eyes, that is, there is binocular parallax, which ultimately greatly reduces the clarity and quality of the image. Summary of the Utility Model

[0005] This application provides a head-up display system and a vehicle to reduce binocular parallax and improve image clarity and quality.

[0006] To solve the above technical problems, the first technical solution provided by this application is:

[0007] A head-up display system includes an image generation unit, a left mirror group, a right mirror group, and a transparent imaging carrier; the image generation unit is configured to generate left imaging light for a left image and right imaging light for a right image; the left mirror group is configured to reflect the left imaging light and cause the left imaging light to transmit along a left optical path; the right mirror group is configured to reflect the right imaging light and cause the right imaging light to transmit along a right optical path; the transparent imaging carrier is configured to receive the left imaging light reflected by the left mirror group and reflect it to a preset left-eye area to form a left virtual image, and is further configured to receive the right imaging light reflected by the right mirror group and reflect it to a preset right-eye area to form a right virtual image; wherein, the left virtual image is formed by the converging of the reverse extension lines of the left imaging light from the transparent imaging carrier to the preset left-eye area, and the right virtual image is formed by the converging of the reverse extension lines of the right imaging light from the transparent imaging carrier to the preset right-eye area; the left virtual image and the right virtual image have the same vertical position and are horizontally adjacent, and both the left virtual image and the right virtual image have a plurality of sub-virtual image parts displayed at different near and far positions.

[0008] According to an embodiment of the present application, the left virtual image includes a first left sub-virtual image and a second left sub-virtual image. The first left sub-virtual image and the second left sub-virtual image have different vertical positions and no height difference, and the first left sub-virtual image and the second left sub-virtual image have different near and far positions; the right virtual image includes a first right sub-virtual image and a second right sub-virtual image. The first right sub-virtual image and the second right sub-virtual image have different vertical positions and no height difference, and the first right sub-virtual image and the second right sub-virtual image have different near and far positions.

[0009] According to an embodiment of the present application, the left imaging light includes a first left imaging light part and a second left imaging light part, the right imaging light includes a first right imaging light part and a second right imaging light part, the left mirror group includes a first part of the left mirror group and a second part of the left mirror group, and the right mirror group includes a first part of the right mirror and a second part of the right mirror; the first left sub-virtual image is formed by the first part of the left mirror group projecting the first left imaging light part generated by the image generation unit onto the transparent imaging carrier; the second left sub-virtual image is formed by the second part of the left mirror group projecting the second left imaging light part generated by the image generation unit onto the transparent imaging carrier; the first right sub-virtual image is formed by the first part of the right mirror projecting the first right imaging light part generated by the image generation unit onto the transparent imaging carrier; the second right sub-virtual image is formed by the second part of the right mirror projecting the second right imaging light part generated by the image generation unit onto the transparent imaging carrier.

[0010] According to an embodiment of the present application, the first left sub-virtual image and the first right sub-virtual image have the same vertical position, the same near and far position, and are horizontally adjacent; the second left sub-virtual image and the second right sub-virtual image have the same vertical position, the same near and far position, and are horizontally adjacent.

[0011] According to an embodiment of the present application, the left virtual image includes a plurality of horizontally adjacent left virtual pixel columns, and at least some of the adjacent left virtual pixel columns have different near and far positions; the right virtual image includes a plurality of horizontally adjacent right virtual pixel columns, and at least some of the adjacent right virtual pixel columns have different near and far positions.

[0012] According to an embodiment of the present application, the near and far positions of two adjacent left virtual pixel columns are different, so that a plurality of horizontally adjacent left virtual pixel columns jointly form a left virtual image; the near and far positions of two adjacent right virtual pixel columns are different, so that a plurality of horizontally adjacent left virtual pixel columns jointly form a right virtual image; an included angle is provided between the left virtual image and the right virtual image.

[0013] According to an embodiment of the present application, the head-up display system further includes an optical path blocking module, which is arranged between the optical paths of the image generation unit and the transparent imaging carrier, and is used to separate the left imaging light transmitted along the left optical path and the right imaging light transmitted along the right optical path.

[0014] According to an embodiment of the present application, the left mirror group includes at least a first left mirror and a second left mirror, and the first left mirror and the second left mirror are arranged in sequence along the left optical path; the right mirror group includes at least a first right mirror and a second right mirror, and the first right mirror and the second right mirror are arranged in sequence along the right optical path; the first left mirror and the first right mirror are horizontally spliced, and the second left mirror and the second right mirror are horizontally spliced.

[0015] According to an embodiment of the present application, the transparent imaging carrier includes the front windshield of the vehicle.

[0016] To solve the above technical problems, the second technical solution provided by the present application is: a vehicle, including the above-mentioned head-up display system.

[0017] The beneficial effects of the present application are:

[0018] For the head-up display system provided by the present application and the vehicle having the head-up display system, the left imaging light and the right imaging light generated by the head-up display system can enter the left eye and the right eye of the driver along different optical paths respectively. The left imaging light will not enter the right eye of the driver, and the right imaging light will not enter the left eye of the driver. Therefore, the left eye of the driver can only see the left virtual image formed by the projection of the left image on the transparent imaging carrier, and the right eye of the driver can only see the right virtual image formed by the projection of the right image on the transparent imaging carrier. The left and right imaging do not interfere with each other and are independently imaged, thus reducing the problem of image clarity degradation caused by binocular parallax. And the left virtual image and the right virtual image have the same height position and are horizontally adjacent, and both the left virtual image and the right virtual image have several sub-virtual image parts with different near and far positions displayed, so the left virtual image and the right virtual image independently have a depth-of-field effect, increasing the sense of immersion. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0020] Figure 1 is a schematic structural diagram of an embodiment of a head-up display system provided by the present application;

[0021] Figure 2 is Figure 1 a schematic structural diagram of another perspective of the head-up display system of;

[0022] Figure 3 is Figure 1 a schematic structural diagram of one situation of the head-up display system of;

[0023] Figure 4 is Figure 1 a schematic structural diagram of another situation of the head-up display system of;

[0024] Figure 5 is Figure 3 a schematic structural diagram of the left virtual image and the right virtual image in the head-up display system of;

[0025] Figure 6 is Figure 3 a schematic structural diagram of the left image and the right image in the head-up display system of;

[0026] Figure 7 is Figure 3 a schematic structural diagram of the left mirror group and the right mirror group in the head-up display system of;

[0027] Figure 8 is a schematic structural diagram of another embodiment of the head-up display system provided by the present application.

[0028] Description of reference numerals:

[0029] Image generation unit 10

[0030] Left image 100A

[0031] First left sub-image 110A

[0032] Second left sub-image 120A

[0033] Right image 100B

[0034] First right sub-image 110B

[0035] Second right sub-image 120B

[0036] Left virtual image 100A1

[0037] First left sub-virtual image 110A1

[0038] Second left sub-virtual image 120A1

[0039] Right virtual image 100B1

[0040] First right sub-virtual image 110B1

[0041] Second right sub-virtual image 120B1

[0042] Left mirror group 20

[0043] First left mirror 21

[0044] Second left mirror 22

[0045] First part of left mirror group 210

[0046] First single unit of first part of left mirror group 2101

[0047] Second single unit of first part of left mirror group 2102

[0048] Second part of left mirror group 220

[0049] First single unit of second part of left mirror group 2201

[0050] Second single unit of second part of left mirror group 2202

[0051] Right mirror group 30

[0052] First right mirror 31

[0053] Second right mirror 32

[0054] First part of right mirror group 310

[0055] First single unit of first part of right mirror group 3101

[0056] Second single unit of first part of right mirror group 3102

[0057] Second right mirror 320

[0058] First single unit of second part of right mirror group 3201

[0059] Second single unit of second part of right mirror group 3202

[0060] Transparent imaging carrier 40

[0061] Optical path occlusion module 50

[0062] Left optical path 1a

[0063] Right optical path 2a

[0064] Preset left-eye region 1b

[0065] First preset left-eye sub-region 1b1

[0066] Second preset left-eye sub-region 1b2

[0067] Preset right-eye region 2b

[0068] First preset right-eye sub-region 2b1

[0069] Second preset right-eye sub-region 2b2 Detailed implementation manner

[0070] Next, in combination with the accompanying drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0071] Referring to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0072] The HUD mainly consists of two major parts: an image generation unit (PGU) and an optical display system. The image generation unit is used to generate the HUD output image, and the optical display system is used to display the image. The working principle of the optical display system of the HUD is based on the principles of optical reflection and refraction. Specifically, the image generation unit (PGU) first generates image light rays containing the required information. These light rays are reflected and adjusted by the mirror and then projected onto a transparent imaging carrier, such as the front windshield of a vehicle. The front windshield serves as a display screen, further refracting and reflecting the light rays and then entering the driver's eyes, thereby forming a virtual image in front of the driver's line of sight. This virtual image is located at a certain distance in front of the driver's line of sight (usually 2 - 2.5 meters), giving the feeling that the information is suspended on the road ahead.

[0073] In the conventional HUD solution, after the PGU image passes through the above optical display system, the driver sees the same image with both eyes. Due to the machining errors and assembly accuracy of components such as mirrors in the optical system, there are inconsistencies in the size, distortion, and color of the images seen by the two eyes, that is, binocular parallax exists, which ultimately greatly reduces the clarity and quality of the image.

[0074] In view of this, to reduce the problem of image clarity degradation caused by binocular parallax and make the images seen by the driver's two eyes have the same image size, distortion, and color at the target distance, the present application provides a head-up display system. The left imaging light of the left image and the right imaging light of the right image are generated by the image generation system. The left imaging light and the right imaging light can enter the driver's left eye and right eye along different optical paths respectively. The driver's left eye and right eye see different images, and the left and right imaging do not interfere with each other and are independently imaged, thereby reducing the problem of image clarity degradation caused by binocular parallax. The head-up display system provided by the present application will be described in detail below with reference to the accompanying drawings.

[0075] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic structural diagram of an embodiment of the head-up display system provided by the present application, Figure 2 is Figure 1 a schematic structural diagram of another perspective of the head-up display system. The head-up display system includes: an image generation unit 10, a left mirror group 20, a right mirror group 30, and a transparent imaging carrier 40.

[0076] The image generation unit 10 is used to generate the left imaging light of the left image 100A and the right imaging light of the right image 100B. The image generation unit 10 can be but is not limited to an LCD (Liquid Crystal Display), an LED display panel (Light Emitting Diode panel), or an OLED display panel (Organic Light-Emitting Diode panel, with self-luminous characteristics). Correspondingly, the image generation unit 10 can include a backlight source and a display substrate. The backlight source is used to emit the left imaging light and the right imaging light. The display substrate is used to receive the left imaging light and generate the left image 100A, and is also used to receive the right imaging light to generate the right image 100B; or the image generation unit 10 can include a self-luminous display substrate; the left image 100A and the right image 100B can be pixel arrangement patterns on the display substrate. Since the generation of images by the image generation unit 10 is a well-known technology in the art, it will not be elaborated in detail here.

[0077] The left image 100A and the right image 100B may be two independent images generated by the same module in the image generation unit 10, or may be two independent images generated by two modules respectively, or may be multiple images generated by multiple modules, and the multiple images are divided into the left image 100A and the right image 100B. The present application does not limit the specific form of the image generation unit 10 for generating the left image 100A and the right image 100B.

[0078] The left mirror group 20 is used to reflect the left imaging light and make the left imaging light transmit along the left optical path 1a; the right mirror group 30 is used to reflect the right imaging light and make the right imaging light transmit along the right optical path 2a.

[0079] The transparent imaging carrier 40 is used to receive the left imaging light reflected by the left mirror group 20 and reflect it to the preset left eye area 1b to form a left virtual image 100A1, and is also used to receive the right imaging light reflected by the right mirror group 30 and reflect it to the preset right eye area 2b to form a right virtual image 100B1. When the head-up display system of the present application is applied to a vehicle, the transparent imaging carrier 40 may be the front windshield of the vehicle. In the present application, the left mirror group 20 and the right mirror group 30 are responsible for reflecting the left imaging light and the right imaging light generated by the image generation unit 10 respectively, and then projecting them onto the transparent imaging carrier 40. The design of each mirror in the left mirror group 20 and the right mirror group 30 needs to consider the refraction and reflection angles of the light to ensure that the image can be accurately and clearly presented within the driver's line of sight.

[0080] Among them, the left virtual image 100A1 is formed by the reverse extension lines of the left imaging light from the transparent imaging carrier 40 to the preset left eye area 1b converging, and the right virtual image 100B1 is formed by the reverse extension lines of the right imaging light from the transparent imaging carrier 40 to the preset right eye area 2b converging.

[0081] Since the relative position of the driver to the front windshield of the vehicle generally does not change significantly during driving, the relative positions of the driver's left and right eyes to the front windshield of the vehicle are generally relatively fixed. The preset left eye area 1b is the area where the driver's left eye is located during driving, and the preset right eye area 2b is the area where the driver's right eye is located during driving. After the left imaging light reflected by the left mirror group 20 and the right imaging light reflected by the right mirror group 30 are projected onto the front windshield of the vehicle, a part of them is refracted, a part is absorbed by the front windshield, and a part is reflected on the front windshield. The left imaging light reflected by the front windshield can enter the driver's left eye in the preset left eye area 1b, and the right imaging light reflected by the front windshield can enter the driver's right eye in the preset right eye area 2b, so that the driver's left eye can see the left virtual image 100A1 and the driver's right eye can see the right virtual image 100B1.

[0082] In this application, since the left imaging light of the left image 100A and the right imaging light of the right image 100B can enter the left and right eyes of the driver along different optical paths respectively, the left imaging light will not enter the right eye of the driver, and the right imaging light will not enter the left eye of the driver. Therefore, the left eye of the driver can only see the left virtual image 100A1 formed by projecting the left image 100A on the transparent imaging carrier 40, and the right eye of the driver can only see the right virtual image 100B1 formed by projecting the right image 100B on the transparent imaging carrier 40. The left and right imaging do not interfere with each other and are independently imaged, thus reducing the problem of image clarity degradation caused by binocular parallax.

[0083] The reason why the driver can see the left virtual image 100A1 and the right virtual image 100B1 is due to the visual illusion generated by the driver, feeling that the light seems to be emitted from the front of the field of view (the front side of the windshield). However, the light entering the left and right eyes of the driver does not actually come from the front side of the windshield. Therefore, the image seen by the left eye of the driver is called the "left virtual image 100A1", and the image seen by the right eye of the driver is called the "right virtual image 100B1". It's just that people have the experience of "light travels in a straight line" and think that they are emitted from the virtual image. The reverse extension lines of the left imaging light from the transparent imaging carrier 40 to the preset left eye area 1b converge to form the left virtual image 100A1 on the front side of the transparent imaging carrier 40, and the reverse extension lines of the right imaging light from the transparent imaging carrier 40 to the preset right eye area 2b converge to form the right virtual image 100B1 on the front side of the transparent imaging carrier 40. The left virtual image 100A1 and the right virtual image 100B1 are not real images but virtual images.

[0084] Please refer to Figure 3 and Figure 4 , Figure 3 is Figure 1 a schematic structural diagram of one case of the head-up display system Figure 4 is Figure 1 a schematic structural diagram of another case of the head-up display system. The vertical positions of the left virtual image 100A1 and the right virtual image 100B1 are the same and they are horizontally adjacent, and both the left virtual image 100A1 and the right virtual image 100B1 have several sub-virtual image parts displayed at different near and far positions. Therefore, the left virtual image 100A1 and the right virtual image 100B1 independently have a depth-of-field effect, increasing the sense of immersion. Figure 3 and Figure 4 show two schemes in which the left virtual image 100A1 and the right virtual image 100B1 independently have a depth-of-field effect.

[0085] It should be noted that in this application, the near / far position, high / low position, and horizontal orientation are defined relative to the driver's position inside the vehicle. The near / far position refers to the distance relative to the driver in the longitudinal direction (i.e., the driving direction) of the vehicle when the driver is driving the vehicle. The high / low position refers to the position in the vertical direction of the vehicle, and the horizontal orientation refers to the width direction of the vehicle.

[0086] Referring again to Figure 1 , in one embodiment, the left mirror group 20 includes at least a first left mirror 21 and a second left mirror 22, and the first left mirror 21 and the second left mirror 22 are arranged in sequence along the left optical path 1a; the right mirror group 30 includes at least a first right mirror 31 and a second right mirror 32, and the first right mirror 31 and the second right mirror 32 are arranged in sequence along the right optical path 2a; the first left mirror 21 and the first right mirror unit 31 are horizontally spliced, and the second left mirror 22 and the second right mirror 32 are horizontally spliced. It can be understood that in other embodiments, the first left mirror 21 and the first right mirror 31 may also be fixed to different fixing mechanisms respectively, and there is no connection relationship between them, but they are adjacent in the physical position; the second left mirror 22 and the second right mirror 32 may also be fixed to different fixing mechanisms respectively, and there is no connection relationship between them, but they are adjacent in the physical position. And it can be understood that in other embodiments, the number of left mirrors in the left mirror group 20 and the number of right mirrors in the right mirror group 30 may also be other numbers, such as one, three, four or other numbers.

[0087] Referring again to Figure 3 , this embodiment specifically describes one of the solutions for how the left virtual image 100A1 and the right virtual image 100B1 independently have a depth-of-field effect with the structure shown in Figure 3 , and in combination with Figures 5 to 7 , Figure 5 is Figure 3 a schematic structural diagram of the left virtual image 100A1 and the right virtual image 100B1 in the head-up display system of Figure 6 is Figure 3 a schematic structural diagram of the left image 100A and the right image 100B in the head-up display system of Figure 7 is Figure 3Schematic diagram of the structure of the left mirror group 20 and the right mirror group 30 in the head-up display system. In this embodiment, the left virtual image 100A1 includes a first left sub-virtual image 110A1 and a second left sub-virtual image 120A1. The first left sub-virtual image 110A1 and the second left sub-virtual image 120A1 have different vertical positions and no height difference, and the first left sub-virtual image 110A1 and the second left sub-virtual image 120A1 have different distances. The right virtual image 100B1 includes a first right sub-virtual image 110B1 and a second right sub-virtual image 120B1. The first right sub-virtual image 110B1 and the second right sub-virtual image 120B1 have different vertical positions and no height difference, and the first right sub-virtual image 110B1 and the second right sub-virtual image 120B1 have different distances. That is, both the left virtual image 100A1 and the right virtual image 100B1 include a pair of near-view images and a pair of far-view images. The near-view images and the far-view images have different distances and are offset front and back, so that the left virtual image 100A1 and the right virtual image 100B1 independently have a depth-of-field effect, and the near-view images and the far-view images have no height difference. Therefore, the left virtual image 100A1 and the right virtual image 100B1 are continuous images in the vertical position, avoiding the problem of discontinuous vertical images.

[0088] Refer to again Figure 3 and Figures 5 to 7 Furthermore, the left imaging light includes a first left imaging light part and a second left imaging light part, the right imaging light includes a first right imaging light part and a second right imaging light part, the left mirror group 20 includes a first part 210 of the left mirror group and a second part 220 of the left mirror group, and the right mirror group 30 includes a first part 310 of the right mirror group and a second right mirror 320. The first part 210 of the left mirror group includes a first single body 2101 of the first left mirror group and a second single body 2102 of the first left mirror group arranged in sequence along the left optical path 1a. The second part 220 of the left mirror group includes a first single body 2201 of the second left mirror group and a second single body 2202 of the second left mirror group arranged in sequence along the left optical path 1a. The first part 310 of the right mirror group includes a first single body 3101 of the first right mirror group and a second single body 3102 of the first right mirror group arranged in sequence along the right optical path 2a. The second right mirror 320 includes a first single body 3201 of the second right mirror group and a second single body 3202 of the second right mirror group arranged in sequence along the right optical path 2a.

[0089] The first single unit 2101 of the first left mirror group and the first single unit 2201 of the second left mirror group together form the first left mirror 21, and the second single unit 2102 of the first left mirror group and the second single unit 2202 of the second left mirror group together form the second left mirror 22. The first single unit 3101 of the first right mirror group and the first single unit 3201 of the second right mirror group together form the first right mirror 31, and the second single unit 3102 of the first right mirror group and the second single unit 3202 of the second right mirror group together form the second right mirror 32.

[0090] Among them, the first single unit 2101 of the first left mirror group, the first single unit 2201 of the second left mirror group, the first single unit 3201 of the second right mirror group, and the second single unit 3102 of the first right mirror group are each independent mirrors, and the four are spliced into a whole, which can be called the first mirror. Figure 7 The left half is the schematic structural diagram of the first mirror; the second single unit 2102 of the first left mirror group, the second single unit 2202 of the second left mirror group, the second single unit 3102 of the first right mirror group, and the second single unit 3202 of the second right mirror group are each independent mirrors, and the four are spliced into a whole, which can be called the second mirror. Figure 7 The right half is the schematic structural diagram of the second mirror.

[0091] Correspondingly, the left image 100A includes the first left sub-image 110A and the second left sub-image 120A. The imaging light of the first left sub-image 110A is the first left imaging light part, and the imaging light of the second left sub-image 120A is the second left imaging light part. The right image 100B includes the first right sub-image 110B and the second right sub-image 120B. The imaging light of the first right sub-image 110B is the first right imaging light part, and the imaging light of the second right sub-image 120B is the second right imaging light part.

[0092] The first left sub-image 110A, the second left sub-image 120A, the first right sub-image 110B, and the second right sub-image 120B are four independent images. The first left sub-image 110A and the second left sub-image 120A are staggered up and down to avoid interference between the imaging lights of the first left sub-image 110A and the second left sub-image 120A respectively. The first left sub-image 110A and the second left sub-image 120A are staggered front and back to construct the depth-of-field effect of the left virtual image 100A1; the first right sub-image 110B and the second right sub-image 120B are staggered up and down to avoid interference between the imaging lights of the first right sub-image 110B and the second right sub-image 120B respectively. The first right sub-image 110B and the second right sub-image 120B are staggered front and back to construct the depth-of-field effect of the right virtual image 100B1.

[0093] The first left virtual image 110A1 is formed by projecting a first part of the left imaging light rays generated by the image generation unit 10 onto the transparent imaging carrier 40 via the first part 210 of the left mirror group. The second left virtual image 120A1 is formed by projecting a second part of the left imaging light rays generated by the image generation unit 10 onto the transparent imaging carrier 40 via the second part 220 of the left mirror group.

[0094] The first right virtual image 110B1 is formed by projecting a first part of the right imaging light rays generated by the image generation unit 10 onto the transparent imaging carrier 40 via the first part 310 of the right mirror group; the second right virtual image 120B1 is formed by projecting a second part of the right imaging light rays generated by the image generation unit 10 onto the transparent imaging carrier 40 via the second right mirror 320.

[0095] Specifically, the preset left eye region 1b includes a first preset left eye sub-region 1b1 and a second preset left eye sub-region 1b2, and the preset right eye region 2b includes a first preset right eye sub-region 2b1 and a second preset right eye sub-region 2b2.

[0096] The first part of the left imaging light rays reflected by the first part 210 of the left mirror group is refracted by the transparent imaging carrier 40 and enters the left eye of the driver in the first preset left eye sub-region 1b1. The second part of the left imaging light rays reflected by the second part 220 of the left mirror group is refracted by the transparent imaging carrier 40 and enters the left eye of the driver in the second preset left eye sub-region 1b2. Therefore, the left eye of the driver can see a distant view image and a near view image, and the images seen by the left eye of the driver have a depth of field effect.

[0097] The first part of the right imaging light rays reflected by the first part 310 of the right mirror group is refracted by the transparent imaging carrier 40 and enters the right eye of the driver in the first preset right eye sub-region 2b1. The second part of the right imaging light rays reflected by the second right mirror 320 is refracted by the transparent imaging carrier 40 and enters the right eye of the driver in the second preset right eye sub-region 2b2. Therefore, the right eye of the driver can see a distant view image and a near view image, and the images seen by the right eye of the driver have a depth of field effect.

[0098] In this embodiment, the imaging light rays of the two parts of the left image 100A enter the left eye of the driver along different optical paths through different mirrors respectively, and the imaging light rays of the two parts of the right image 100B enter the right eye of the driver along different optical paths through different mirrors respectively, further reducing the crosstalk of the optical paths.

[0099] Refer back to Figure 3 and Figure 5, Further, the first left virtual image 110A1 and the first right virtual image 110B1 have the same vertical position, the same distance position, and are horizontally adjacent; the second left virtual image 120A1 and the second right virtual image 120B1 have the same vertical position, the same distance position, and are horizontally adjacent. It can be understood that in other embodiments, the first left virtual image 110A1 and the first right virtual image 110B1 may have different vertical positions, different distance positions, and may not be horizontally adjacent, and the second left virtual image 120A1 and the second right virtual image 120B1 may have different vertical positions, different distance positions, and may not be horizontally adjacent.

[0100] Referring again to Figure 4 , this embodiment uses the structure shown in Figure 4 to specifically illustrate another solution for how the left virtual image 100A1 and the right virtual image 100B1 independently have a depth-of-field effect. In this embodiment, the left virtual image 100A1 includes a plurality of horizontally adjacent left virtual pixel columns, and at least some of the adjacent left virtual pixel columns have different distance positions; the right virtual image 100B1 includes a plurality of horizontally adjacent right virtual pixel columns, and at least some of the adjacent right virtual pixel columns have different distance positions.

[0101] In this embodiment, the meaning of the virtual pixel column is that the image generated by the image generation unit 10 is a pixel arrangement pattern, which is a real image, including a plurality of pixel points. The plurality of pixel points are distributed in a matrix including multiple rows and multiple columns. A single column of the plurality of pixel points is a pixel column, and the virtual image formed by projecting the pixel column onto the transparent imaging carrier 40 is the virtual pixel column. The virtual image formed by projecting the pixel column of the left image 100A onto the transparent imaging carrier 40 is the left virtual pixel column, and the virtual image formed by projecting the pixel column of the right image 100B onto the transparent imaging carrier 40 is the right virtual pixel column.

[0102] In this embodiment, at least some of the adjacent left virtual pixel columns have different distance positions, so these adjacent left virtual pixel columns can have a depth-of-field effect. At least some of the adjacent right virtual pixel columns have different distance positions, so these adjacent right virtual pixel columns can have a depth-of-field effect. Thus, the left virtual image 100A1 and the right virtual image 100B1 can independently have a depth-of-field effect.

[0103] Further, the distance positions of two adjacent left virtual pixel columns are all different, so that a plurality of horizontally adjacent left virtual pixel columns together form the left virtual image 100A1; the distance positions of two adjacent right virtual pixel columns are all different, so that a plurality of horizontally adjacent left virtual pixel columns together form the right virtual image 100B1; an included angle is provided between the left virtual image 100A1 and the right virtual image 100B1.

[0104] In this embodiment, the left virtual image 100A1 and the right virtual image 100B1 are set to be tilted left and right, so that the left virtual image 100A1 and the right virtual image 100B1 can independently have a depth-of-field effect. Correspondingly, the left image 100A and the right image 100B can be set to be tilted left and right.

[0105] Please refer to Figure 8 , Figure 8 FIG. is a schematic structural diagram of another embodiment of the head-up display system provided by the present application. In this embodiment, the head-up display system further includes an optical path blocking module 50. The optical path blocking module 50 is disposed between the optical paths of the image generation unit 10 and the transparent imaging carrier 40, and is used to separate the left imaging light transmitted along the left optical path 1a and the right imaging light transmitted along the right optical path 2a. The optical path blocking module 50 extends from the image generation unit 10 at least to the space between the first left mirror 21 and the first right mirror 31, and further may extend to the space between the second left mirror 22 and the second right mirror 32. The optical path blocking module 50 may be an opaque baffle, which can ensure that the left imaging light of the left image 100A can only be reflected by the left mirror group 20, and the right imaging light of the right image 100B can only be reflected by the right mirror group 30, so as to realize the separation of the left optical path 1a and the right optical path 2a and avoid optical path crosstalk. The optical path blocking module 50 is an effective light-blocking means. With the presence of the optical path blocking module 50, the left eye of the driver cannot see the right virtual image 100B1 formed by the projection of the right image 100B on the transparent imaging carrier 40 in the preset left eye area 1b, and the right eye of the driver cannot see the left virtual image 100A1 formed by the projection of the left image 100A on the transparent imaging carrier 40 in the preset right eye area 2b. It can be understood that in other embodiments, the head-up display system may not be provided with the optical path blocking module 50.

[0106] On the basis of the above embodiments, in order to realize the automatic adjustment and precise adjustment of the angles and positions of the left mirror group 20 and the right mirror group 30, the head-up display system of the embodiment of the present application may further include an adjustment motor and a control unit (not shown in the figure). The adjustment motor and the control unit are used to adjust the angles and positions of the left mirror group 20 and the right mirror group 30 to adapt to different driving environments and the line-of-sight requirements of the driver. The control unit controls the movement of the adjustment motor by receiving information transmitted from the vehicle data bus, such as vehicle speed, navigation, etc., so as to realize the precise projection of the image.

[0107] The present application also provides a vehicle, which includes the above head-up display system. The specific structure of the head-up display system refers to the above embodiment. Since this vehicle adopts all the technical solutions of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be elaborated here one by one.

[0108] The terms "first", "second", and "third" in this application are only used for descriptive purposes and should not be construed as indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one such feature. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0109] It should be specifically noted that the terms "left image", "left imaging light ray", "right image", "right imaging light ray", "left mirror group", and "right mirror group" in this application do not refer to the relative positional relationship, but are used to correspond to the naming of the terms "left virtual image" and "right virtual image" respectively, so as to distinguish that the imaging light rays generated by the image generation unit enter the left and right eyes of the driver respectively.

[0110] The above are only the embodiments of this application, and do not limit the patent scope of this application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of this application.

Claims

1. A head-up display system, characterized in that, Comprising: An image generation unit for generating left imaging light rays of a left image and right imaging light rays of a right image; A left mirror group for reflecting the left imaging light rays and causing the left imaging light rays to be transmitted along a left optical path; A right mirror group for reflecting the right imaging light rays and causing the right imaging light rays to be transmitted along a right optical path; A transparent imaging carrier for receiving the left imaging light rays reflected by the left mirror group and reflecting them to a preset left eye area to form a left virtual image, and also for receiving the right imaging light rays reflected by the right mirror group and reflecting them to a preset right eye area to form a right virtual image; Wherein, the left virtual image is formed by the reverse extension lines of the left imaging light rays from the transparent imaging carrier to the preset left eye area, and the right virtual image is formed by the reverse extension lines of the right imaging light rays from the transparent imaging carrier to the preset right eye area; The left virtual image and the right virtual image have the same vertical position and are horizontally adjacent, and both the left virtual image and the right virtual image have several sub-virtual image parts displayed at different near and far positions.

2. The head-up display system according to claim 1, wherein: The left virtual image includes a first left sub-virtual image and a second left sub-virtual image, the first left sub-virtual image and the second left sub-virtual image have different vertical positions and no height difference, and the first left sub-virtual image and the second left sub-virtual image have different near and far positions; The right virtual image includes a first right sub-virtual image and a second right sub-virtual image, the first right sub-virtual image and the second right sub-virtual image have different vertical positions and no height difference, and the first right sub-virtual image and the second right sub-virtual image have different near and far positions.

3. The head-up display system according to claim 2, wherein: The left imaging light rays include a first left imaging light ray part and a second left imaging light ray part, the right imaging light rays include a first right imaging light ray part and a second right imaging light ray part, the left mirror group includes a first part of the left mirror group and a second part of the left mirror group, and the right mirror group includes a first part of the right mirror and a second part of the right mirror; The first left sub-virtual image is formed by the first part of the left mirror group projecting the first left imaging light ray part generated by the image generation unit onto the transparent imaging carrier; The second left sub-virtual image is formed by the second part of the left mirror group projecting the second left imaging light ray part generated by the image generation unit onto the transparent imaging carrier; The first right sub-virtual image is formed by the first part of the right mirror projecting the first right imaging light ray part generated by the image generation unit onto the transparent imaging carrier; The second right sub-virtual image is formed by the second part of the right mirror projecting the second right imaging light ray part generated by the image generation unit onto the transparent imaging carrier.

4. The head-up display system according to claim 2, wherein: The first left sub-virtual image and the first right sub-virtual image have the same vertical position, the same near and far position, and are horizontally adjacent; The second left sub-virtual image and the second right sub-virtual image have the same vertical position, the same near and far position, and are horizontally adjacent.

5. The head-up display system according to claim 1, wherein the left virtual image includes a plurality of horizontally adjacent left virtual pixel columns, and at least some of the adjacent left virtual pixel columns have different distances; the right virtual image includes a plurality of horizontally adjacent right virtual pixel columns, and at least some of the adjacent right virtual pixel columns have different distances.

6. The head-up display system according to claim 5, wherein the distances of two adjacent left virtual pixel columns are different, so that a plurality of horizontally adjacent left virtual pixel columns together form the left virtual image; the distances of two adjacent right virtual pixel columns are different, so that a plurality of horizontally adjacent left virtual pixel columns together form the right virtual image; an angle is provided between the left virtual image and the right virtual image.

7. The head-up display system according to claim 1, wherein The head-up display system further includes an optical path blocking module, which is arranged between the optical paths of the image generation unit and the transparent imaging carrier, and is used to separate the left imaging light transmitted along the left optical path and the right imaging light transmitted along the right optical path.

8. The head-up display system according to claim 1, wherein the left mirror group includes at least a first left mirror and a second left mirror, and the first left mirror and the second left mirror are arranged in sequence along the left optical path; the right mirror group includes at least a first right mirror and a second right mirror, and the first right mirror and the second right mirror are arranged in sequence along the right optical path; the first left mirror is horizontally spliced with the first right mirror, and the second left mirror is horizontally spliced with the second right mirror.

9. The head-up display system according to claim 1, characterized in that, The transparent imaging carrier includes the front windshield of the vehicle.

10. A vehicle, characterized in that, Including the head-up display system according to any one of claims 1-9.

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