Head-up display system and vehicle

Abstract

The utility model relates to the technical field of vehicles, and provides a head-up display system and a vehicle, the head-up display system may comprise: an image generation unit, a free-form mirror, a first reflector and a second reflector, the image generation unit emits a first light beam and a second light beam, the first light beam is used for forming a near-projection virtual image, and the second light beam is used for forming a near-projection virtual image; the second light beam is used for forming a far projection virtual image; the free-form surface mirror is rotatably arranged between the image generation unit and the vehicle window, and reflects the first light beam and the second light beam to the vehicle window; the first reflecting mirror is rotatably arranged between the image generating unit and the free-form surface mirror, and the first reflecting mirror reflects the first light beam to the free-form surface mirror; on the propagation path of the second light beam, the second reflecting mirror is rotatably arranged between the image generation unit and the free-form surface mirror, and the second reflecting mirror is used for reflecting the second light beam to the free-form surface mirror. According to the head-up display system provided by the embodiment of the invention, the far projection virtual image and the near projection virtual image can be respectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a head-up display system and a vehicle. Background Art

[0002] With the continuous development of vehicle technology, higher and higher requirements are placed on the convenience and safety of vehicle use.

[0003] For example, head-up display (HUD) (or head-up display system) has been widely used in vehicles. Head-up display is a device that projects instrument information (such as vehicle speed, rotation speed, temperature, fuel level, etc.) and navigation information to the front and back of the driver's field of vision. The driver can see the instrument information and navigation information in front of the field of vision without having to look down at the instrument panel or central control display under the steering wheel, thereby improving the braking reaction time in emergency situations and improving driving safety.

[0004] In order to display instrument information and navigation information at the same time, the prior art generally implements this through near and far virtual images. Most of the time, one or more curved mirrors are used to adjust the focal length of the near and far virtual images at the same time, and the near and far virtual images are distinguished by imaging within the depth of field. However, this design makes the positions of the far and near beams linked, and the depth of field and position of the near and far virtual images cannot be controlled separately. Utility Model Content

[0005] In order to solve the above technical problem or at least partially solve the above technical problem, the utility model provides a head-up display system and a vehicle.

[0006] In a first aspect, the utility model discloses a head-up display system, which may include: an image generating unit, a free-form surface mirror, a first reflector, and a second reflector, the image generating unit being used to emit a first light beam and a second light beam, the first light beam being used to form a near-projection virtual image, and the second light beam being used to form a far-projection virtual image; the free-form surface mirror being rotatably disposed between the image generating unit and the vehicle window, and the free-form surface mirror being used to reflect the first light beam and the second light beam to the vehicle window; on a propagation path of the first light beam, the first reflector being rotatably disposed between the image generating unit and the free-form surface mirror, and the first reflector being used to reflect the first light beam to the free-form surface mirror; on a propagation path of the second light beam, the second reflector being rotatably disposed between the image generating unit and the free-form surface mirror, and the second reflector being used to reflect the second light beam to the free-form surface mirror.

[0007] In this way, the user can adjust the position and depth of field of the near-projection virtual image separately by adjusting the first reflector and the free-form surface mirror; and adjust the position and depth of field of the far-projection virtual image separately by adjusting the second reflector and the free-form surface mirror.

[0008] In some embodiments of the present application, the head-up display system also includes: a spectroscopic module, the spectroscopic module includes a near projection display unit, and on the propagation path of the first light beam, the near projection display unit is located between the first reflector and the image generation unit, and the near projection display unit is used to reflect the first light beam to the first reflector.

[0009] In some embodiments of the present application, the light splitting module further includes: a far projection display unit, which is located between the second reflector and the image generating module, and is suitable for the second light beam to pass through.

[0010] In some embodiments of the present application, the light splitting module further includes: an opaque light-isolating portion, the light-isolating portion is located between the near projection display portion and the far projection display portion, and the light-isolating portion is used to separate the first light beam from the second light beam.

[0011] In some embodiments of the present application, a light-isolating protrusion is provided on the light-isolating portion, the light-isolating portion includes a first surface facing the image generating unit, and the light-isolating protrusion protrudes from a portion of the first surface toward the image generating unit.

[0012] In some embodiments of the present application, the cross-sectional area of ​​the light-isolating protrusion gradually decreases in the direction from the first surface to the image generating unit.

[0013] In some embodiments of the present application, the head-up display system also includes: a third reflector, which is located between the telephoto display unit and the second reflector on the propagation path of the second light beam, and is used to reflect the second light beam passing through the telephoto display unit to the second reflector.

[0014] In some embodiments of the present application, the head-up display system also includes: a display module, the display module is located on the display side of the image generating unit, and the display module includes: a near projection display area, a portion of the light beam emitted by the image generating unit passes through the near projection display area to form a first light beam; a far projection display area, a portion of the light beam emitted by the image generating unit passes through the far projection display area to form a second light beam.

[0015] In some embodiments of the present application, the display module further includes: an opaque light-isolating area, wherein the light-isolating area is located between the near projection display area and the far projection display area.

[0016] In some embodiments of the present application, the first reflector is formed as a curved mirror.

[0017] In some embodiments of the present application, the first reflector is formed as a plane mirror.

[0018] In some embodiments of the present application, the second reflector is formed as a curved mirror.

[0019] In some embodiments of the present application, the second reflector is formed as a plane mirror.

[0020] In a second aspect, the utility model discloses a vehicle, which includes a vehicle window and a door inner panel assembly as described in any one of the above technical solutions, and a head-up display system is imaged on the vehicle window.

[0021] Among them, the technical effects brought about by any design scheme in the second aspect can refer to the technical effects brought about by different design methods in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 A schematic diagram of a head-up display system provided for some embodiments of the present application;

[0025] Figure 2 for Figure 1 Schematic diagram of the optical splitting module shown in;

[0026] Figure 3 for Figure 1 Schematic diagram of the display module shown in .

[0027] Reference numerals:

[0028] 100. Head-up display system; 101. First light beam; 102. Second light beam; 103. Near projection virtual image; 104. Far projection virtual image;

[0029] 111, image generation unit; 112, display module; 1121, near projection display area; 1122, far projection display area; 1123, light isolation area;

[0030] 120. Free-form mirror;

[0031] 130. a first reflector;

[0032] 140, a second reflector;

[0033] 150, light splitting module; 151, near projection display unit; 152, far projection display unit; 153, light isolation unit; 1531, light isolation protrusion;

[0034] 160, third reflector;

[0035] 200. Car window. DETAILED DESCRIPTION

[0036] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0038] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0040] In the description of the embodiments of the present invention, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0041] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0042] In the description of the embodiments of the present utility model, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0043] With the continuous development of vehicle technology, higher and higher requirements are placed on the convenience and safety of vehicle use.

[0044] For example, a head-up display (HUD) (or referred to as a head-up display system) has been widely used in vehicles.

[0045] A head-up display is a device that projects instrument information (such as vehicle speed, RPM, temperature, fuel level, etc.) and navigation information to the front and rear of the driver's field of vision. The driver can see the instrument information and navigation information in front of the field of vision without having to look down at the instrument panel or central control display screen under the steering wheel, thereby improving the braking reaction time in an emergency and improving driving safety.

[0046] The imaging principle of the head-up display system: instrument information or navigation information is generated by the picture generation unit (PGU) in the HUD system, and then the optical depth of field and magnification are increased by a curved reflector, and then projected onto the windshield to form a virtual image with depth of field in front of the vehicle.

[0047] In order to display instrument information and navigation information at the same time, the prior art generally implements this through near and far virtual images. Most of the time, one or more curved mirrors are used to adjust the focal length of the near and far virtual images at the same time, and the near and far virtual images are distinguished by imaging within the depth of field. However, this design makes the positions of the far and near beams linked, and the depth of field and position of the near and far virtual images cannot be controlled separately.

[0048] To solve the above problems, see Figure 1 The present application provides a vehicle, which may include a vehicle window 200 and a head-up display system 100, wherein the head-up display system 100 is imaged on the vehicle window 200. The vehicle window 200 may be a windshield located in front of the driver, and in some other embodiments, the vehicle window 200 may also be glass located on the left and right sides of the vehicle.

[0049] The head-up display system 100 is described in detail below.

[0050] See also Figures 1 to 3 The present application provides a head-up display system 100 , which may include an image generating unit 111 , a free-form surface mirror 120 , a first reflector 130 , and a second reflector 140 .

[0051] The image generating unit 111 is used to emit a first light beam 101 and a second light beam 102 , the first light beam 101 is used to form a near-projection virtual image 103 , and the second light beam 102 is used to form a far-projection virtual image 104 .

[0052] For details, please refer to Figure 1 and Figure 3 The head-up display system 100 may further include a display module 112, which is located at the display side of the image generating unit 111. The display module 112 is connected to the image generating unit 111 and is used to display the image generated by the image generating unit 112 in a partitioned manner. The display module 112 may include a near projection display area 1121 and a far projection display area 1122. A portion of the light beam emitted by the image generating unit 111 passes through the near projection display area 1121 to form a first light beam 101; a portion of the light beam emitted by the image generating unit 111 passes through the far projection display area 1122 to form a second light beam 102.

[0053] The free-form surface mirror 120 is rotatably disposed between the image generating unit 111 and the vehicle window 200 . The free-form surface mirror 120 is used to reflect the first light beam 101 and the second light beam 102 to the vehicle window 200 .

[0054] On the propagation path of the first light beam 101, the first reflector 130 is rotatably disposed between the image generation unit 111 and the free-form surface mirror 120, and the first reflector 130 is used to reflect the first light beam 101 to the free-form surface mirror 120. The propagation path of the first light beam 101 is emitted from the image generation unit 111, passes through the near projection display area 1121, the first reflector 130 and the free-form surface mirror 120 in sequence, and then is reflected by the free-form surface mirror 120 to the vehicle window 200 for imaging.

[0055] In this way, the focal length is adjusted by setting the rotatable first reflector 130 and the rotatable free-form surface mirror 120, thereby achieving adjustment of different depths of field and positions of the near-projection virtual image 103.

[0056] In a specific implementation process, the first reflector 130 may be a curved mirror, or may be a flat mirror.

[0057] On the propagation path of the second light beam 102, the second reflector 140 is rotatably arranged between the image generation unit 111 and the free-form surface mirror 120, and the second reflector 140 is used to reflect the second light beam 102 to the free-form surface mirror 120, wherein the propagation path of the second light beam 102 is emitted by the image generation unit 111, passes through the far projection display area 1122, the second reflector 140 and the free-form surface mirror 120 in sequence, and then is reflected by the free-form surface mirror 120 to the vehicle window 200 for imaging.

[0058] In this way, by setting the rotatable second reflector 140 and the rotatable free-form surface mirror 120 to adjust the focal length, the adjustment of different depths of field and positions of the near-projection virtual image 103 can be achieved.

[0059] In a specific implementation process, the second reflector 140 may be a curved mirror, or may be a flat mirror.

[0060] In summary, the head-up display system 100 provided in the present application can adjust the reflection angles of the first light beam 101 and the second light beam 102 by setting a rotatable first reflector 130 and a rotatable second reflector 140, thereby achieving the purpose of adjusting the position of the near projection virtual image 103 and the far projection virtual image 104 respectively.

[0061] In some embodiments of this application, please continue to refer to Figure 3 The display module 112 may further include an opaque light-isolating area 1123, and the light-isolating area 1123 is located between the near projection display area 1121 and the far projection display area 1122. Thus, by providing the light-isolating area 1123, the interference between the first light beam and the second light beam may be reduced, thereby ensuring the imaging quality of the near projection virtual image 103 and the far projection virtual image 104.

[0062] The height of the near projection display area 1121 is determined by the vertical viewing angle of the near projection virtual image 103, and the height of the far projection display area 1122 is determined by the vertical viewing angle of the far projection virtual image 104. The width of the near projection display area 1121 is the same as the width of the far projection display area 1122, and can be specifically set according to actual needs.

[0063] In some embodiments of the present application, a first rotation axis may be provided on the first reflector 130 to enable the first reflector 130 to rotate.

[0064] In some embodiments of the present application, a second rotation axis may be provided on the second reflector 140 to realize the rotation of the second reflector 140 .

[0065] In some embodiments of the present application, a third rotation axis may be provided on the free-form surface mirror 120 to realize the rotation of the free-form surface mirror 120 .

[0066] In some embodiments of this application, please refer to Figure 1 and Figure 2 The head-up display system 100 may further include a light splitting module 150, which may include a near projection display unit 151. On the propagation path of the first light beam 101, the near projection display unit 151 is located between the first reflector 130 and the image generation unit 111, and the near projection display unit 151 is used to reflect the first light beam 101 to the first reflector 130. The near projection display unit 151 may be a flat high reflector.

[0067] Therefore, the imaging process of the near-projection virtual image 103 is as follows: the propagation path of the first light beam 101 is emitted from the image generation unit 111, passes through the near-projection display area 1121, the near-projection display part 151, the first reflector 130 and the free-form surface mirror 120 in sequence, and is then reflected by the free-form surface mirror 120 to the vehicle window 200 for imaging.

[0068] In some embodiments of this application, please refer to Figure 1 and Figure 2 The light splitting module 150 may further include a far projection display unit 152, which is located between the second reflector 140 and the image generating unit 111 and is suitable for the second light beam 102 to pass through. The far projection display unit 152 may be made of highly transparent glass.

[0069] Therefore, the imaging process of the far projection virtual image 104 is as follows: the propagation path of the second light beam 102 is emitted from the image generation unit 111, passes through the far projection display area 1122, the far projection display part 152, the second reflector 140 and the free-form surface mirror 120 in sequence, and is then reflected by the free-form surface mirror 120 to the vehicle window 200 for imaging.

[0070] In some embodiments of this application, please refer to Figure 1 and Figure 2 The light splitting module 150 may further include a light-proof light-isolating portion 153 , and the light-isolating portion 153 is located between the near projection display portion 151 and the far projection display portion 152 , and the light-isolating portion 153 is used to separate the first light beam 101 from the second light beam 102 .

[0071] Therefore, by setting the light isolation portion 153, the first light beam 101 can be prevented from irradiating the far projection display portion 152 and affecting the imaging quality of the far projection virtual image 104, and the second light beam 102 can be prevented from irradiating the near projection display portion 151 and affecting the imaging quality of the near projection virtual image 103.

[0072] In some embodiments of this application, please refer to Figure 2 The light-isolating portion 153 is provided with a light-isolating protrusion 1531 . The light-isolating portion 153 may include a first surface facing the image generating unit 111 . The light-isolating protrusion 1531 protrudes from a portion of the first surface toward the image generating unit 111 .

[0073] Therefore, by providing the light-isolating protrusion 1531 protruding toward the image generating unit 111 , the mutual influence between the first light beam 101 and the second light beam 102 can be further avoided, thereby ensuring the imaging quality of the near-projection virtual image 103 and the far-projection virtual image 104 .

[0074] In some embodiments of the present application, the cross-sectional area of ​​the light-isolating protrusion 1531 gradually decreases in the direction from the first surface to the image generating unit 111. In this way, the light loss of the first light beam 101 and the second light beam 102 can be reduced while avoiding the mutual influence between the first light beam 101 and the second light beam 102, and the imaging quality of the near-projection virtual image 103 and the far-projection virtual image 104 can be further guaranteed.

[0075] In some embodiments of this application, please refer to Figure 1 The head-up display system 100 provided in the present application may include a third reflector 160 . On the propagation path of the second light beam 102 , the third reflector 160 is used to reflect the second light beam 102 passing through the remote projection display portion 152 to the second reflector 140 .

[0076] Therefore, the imaging process of the far projection virtual image 104 is as follows: the propagation path of the second light beam 102 is emitted by the image generation unit 111, passes through the far projection display area 1122, the far projection display part 152, the third reflector 160, the second reflector 140 and the free-form surface mirror 120 in sequence, and then is reflected by the free-form surface mirror 120 to the vehicle window 200 for imaging.

[0077] By providing the third reflector 160 , the second light beam 102 passing through the telescopic display portion 152 can avoid the light splitting module 150 and directly reach the second reflector 140 .

[0078] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A head-up display system, characterized in that: include: An image generating unit, the image generating unit is used to emit a first light beam and a second light beam, the first light beam is used to form a near-projection virtual image, and the second light beam is used to form a far-projection virtual image; a free-form surface mirror, the free-form surface mirror being rotatably disposed between the image generating unit and the vehicle window, and the free-form surface mirror being used for reflecting the first light beam and the second light beam to the vehicle window; a first reflecting mirror, on a propagation path of the first light beam, the first reflecting mirror being rotatably disposed between the image generating unit and the free-form surface mirror, the first reflecting mirror being used to reflect the first light beam to the free-form surface mirror; a second reflecting mirror, on a propagation path of the second light beam, the second reflecting mirror being rotatably disposed between the image generating unit and the free-form surface mirror, the second reflecting mirror being used for reflecting the second light beam to the free-form surface mirror; a light splitting module, the light splitting module comprising a near projection display unit, the near projection display unit being located between the first reflector and the image generating unit on a propagation path of the first light beam, the near projection display unit being used to reflect the first light beam to the first reflector; The optical splitting module also includes: A far projection display unit is provided, wherein the far projection display unit is located between the second reflector and the image generating unit, and the far projection display unit is suitable for the second light beam to pass through.

2. The head-up display system according to claim 1, characterized in that: The optical splitting module also includes: An opaque light-isolating portion is located between the near-projection display portion and the far-projection display portion, and is used to separate the first light beam from the second light beam.

3. The head-up display system according to claim 2, characterized in that: A light-isolating protrusion is disposed on the light-isolating portion. The light-isolating portion includes a first surface facing the image generating unit. The light-isolating protrusion protrudes from a portion of the first surface toward the image generating unit.

4. The head-up display system according to claim 3, characterized in that: In a direction from the first surface to the image generating unit, a cross-sectional area of ​​the light-isolating protrusion gradually decreases.

5. The head-up display system according to claim 1, characterized in that: Also includes: A third reflector is located between the remote projection display unit and the second reflector on the propagation path of the second light beam, and is used to reflect the second light beam passing through the remote projection display unit to the second reflector.

6. The head-up display system according to claim 1, characterized in that: Also includes: A display module, the display module is located at the display side of the image generating unit, and the display module includes: a near projection display area, wherein a portion of the light beam emitted by the image generating unit passes through the near projection display area to form the first light beam; A far projection display area, wherein a portion of the light beam emitted by the image generating unit passes through the far projection display area to form the second light beam.

7. The head-up display system according to claim 6, characterized in that: The display module further includes: An opaque light-isolating area is located between the near projection display area and the far projection display area.

8. The head-up display system according to claim 1, characterized in that: The first reflector is formed as a curved mirror or a flat mirror, and / or the second reflector is formed as a curved mirror or a flat mirror.

9. A vehicle, characterized in that: include: The head-up display system according to any one of claims 1 to 8; A vehicle window, wherein the head-up display system is imaged on the vehicle window.

Images