Image generation unit, head-up display, and vehicle

Abstract

The utility model provides an image generation unit, a head-up display and a vehicle. Wherein the image generation unit comprises a backlight source, a display screen, a first guide piece and a driving mechanism; the display screen is movably arranged outside the light source output end of the backlight source in a sleeving manner, and the display screen comprises a first connecting part and a second connecting part; the first guide piece is movably connected with the first connecting part; the driving mechanism comprises a sliding part, the sliding part can slide in the direction close to the backlight source and away from the backlight source, and the sliding part is rotationally connected with the second connecting part; when the sliding part slides, the second connecting part slides and rotates along with the sliding part and drives the first connecting part to slide and rotate relative to the first guide piece, so that the display screen moves and swings relative to the backlight source. According to the technology disclosed by the invention, the display screen of the image generation unit can move and swing relative to the backlight source, so that the position and the angle of the focusing plane of the virtual image corresponding to the image projected by the image generation unit on the windshield are changed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of head-up display, and particularly to an image generation unit, a head-up display and a vehicle. Background Art

[0002] With the development requirements of the novelty and technology of automotive interiors, head-up displays (HUDs) are increasingly being applied in the scenarios of vehicle driving information display. For traditional head-up displays, the position and swing angle of the focal plane of the virtual image projected on the vehicle's windshield are preset at the factory, and users cannot adjust the focal plane of the virtual image projected by the head-up display during daily driving. Utility Model Content

[0003] The present disclosure provides an image generation unit, a head-up display and a vehicle, aiming to solve the technical problem that the focal plane position and swing angle of the virtual image projected by the head-up display in the prior art cannot be changed.

[0004] According to the first aspect of the present disclosure, an image generation unit is provided, including:

[0005] A backlight source;

[0006] A display screen, movably sleeved outside the light source output end of the backlight source, the display screen including a first connection part and a second connection part;

[0007] A first guide member, movably connected to the first connection part;

[0008] A driving mechanism, including a sliding part, the sliding part can reciprocally slide in the directions close to and away from the backlight source, and the sliding part is rotatably connected to the second connection part;

[0009] Wherein, when the sliding part slides, the second connection part slides and rotates together with the sliding part, and drives the first connection part to slide and rotate relative to the first guide member, so that the display screen moves and swings relative to the backlight source.

[0010] According to the second aspect of the present disclosure, a head-up display is provided, including: the image generation unit of any embodiment of the present disclosure.

[0011] According to the third aspect of the present disclosure, a vehicle is provided, including: the head-up display of any embodiment of the present disclosure.

[0012] According to the technology of the present disclosure, the display screen of the image generation unit can move and swing relative to the backlight source, so as to change the position and swing angle of the focal plane of the virtual image corresponding to the image projected by the image generation unit on the vehicle's windshield.

[0013] It should be understood that the content described in the utility model content section is not intended to limit the key or important features of the embodiments of the present disclosure, nor to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. Description of the Drawings

[0014] In conjunction with the accompanying drawings and with reference to the following detailed description, the above and other features, advantages, and aspects of the embodiments of the present disclosure will become more apparent. In the drawings, the same or similar reference numerals denote the same or similar elements, where:

[0015] Figure 1 A schematic structural diagram of an image generation unit according to an embodiment of the present disclosure is shown;

[0016] Figure 2 A schematic structural diagram of an image generation unit according to another embodiment of the present disclosure is shown;

[0017] Figure 3 A schematic structural diagram of an image generation unit according to another embodiment of the present disclosure is shown;

[0018] Figure 4 A schematic structural diagram of an image generation unit according to another embodiment of the present disclosure is shown;

[0019] Figure 5 A schematic structural diagram of an image generation unit according to another embodiment of the present disclosure is shown;

[0020] Figure 6 A schematic cross-sectional structure diagram of a display screen and a backlight source of an image generation unit according to an embodiment of the present disclosure is shown;

[0021] Figure 7 A schematic structural diagram of an image generation unit according to another embodiment of the present disclosure is shown;

[0022] Figure 8 A schematic structural diagram of an image generation unit according to another embodiment of the present disclosure is shown;

[0023] Figure 9 A schematic structural diagram of an image generation unit according to another embodiment of the present disclosure is shown;

[0024] Figure 10 A schematic structural diagram of a head-up display according to the present disclosure is shown. Detailed Description of the Embodiments

[0025] The exemplary embodiments of the present disclosure will be described below in conjunction with the accompanying drawings. Various details of the embodiments of the present disclosure are included to facilitate understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, descriptions of well-known functions and structures are omitted in the following description for clarity and conciseness.

[0026] As Figures 1 to 9 shown, an image generation unit (PGU, Picture Generation Unit) is provided in an embodiment of the present disclosure and can be applied to a head-up display. Among them, the image generation unit 100 includes: a backlight 1, a display screen 2, a first guide member 3, and a driving mechanism 4.

[0027] The display screen 2 is movably sleeved outside the light source output end 11 of the backlight 1, and the display screen 2 includes a first connection portion 21 and a second connection portion 22.

[0028] The first guide member 3 is movably connected to the first connection portion 21.

[0029] The driving mechanism 4 includes a sliding portion 41. The sliding portion 41 can reciprocally slide in directions approaching and departing from the backlight 1, and the sliding portion 41 is rotatably connected to the second connection portion 22.

[0030] Among them, when the sliding portion 41 slides, the second connection portion 22 slides and rotates together with the sliding portion 41, and drives the first connection portion 21 to slide and rotate relative to the first guide member 3, so that the display screen 2 moves and swings relative to the backlight 1. Among them, the sliding directions of the first connection portion 21 and the sliding portion 41 are the same.

[0031] According to the embodiments of the present disclosure, it should be noted that:

[0032] The display screen 2 is movably sleeved outside the light source output end 11, which can be understood as that the light source output end 11 of the backlight 1 is located inside the display screen 2, and the display screen 2 can move (slide) and swing relative to the light source output end 11.

[0033] The first guide member 3 is movably connected to the first connection portion 21, which can be understood as that the first connection portion 21 can slide and rotate relative to the first guide member 3. Among them, the structures of the first connection portion 21 and the first guide member 3 are not specifically limited herein, as long as the two can be movably connected.

[0034] The driving mechanism 4 can adopt any mechanism in the existing mechanical transmission mechanisms, as long as it can achieve the reciprocating linear motion of the sliding portion 41. For example, the driving mechanism 4 can adopt a ball screw mechanism (such as Figure 3 、Figure 4 As shown, the sliding part 41 slides on the lead screw 8), a gear transmission mechanism, a pulley transmission mechanism, etc. The sliding part 41 is a component that performs reciprocating linear motion in these mechanisms. The driving mechanism 4 is used to drive the display screen 2 to move, so as to change the optical path by adjusting the distance between the display screen 2 and the backlight 1, and further change the distance and optical path between the display screen 2 and the mirror of the head-up display, thereby achieving the change of the projection distance of the virtual image, and, by adjusting the swing angle of the display screen 2 to change the optical path, and further changing the deflection angle of the virtual image. By changing the pose of the display screen 2, the position and angle of the virtual image projected by the head-up display on the windshield of the vehicle can be changed.

[0035] As Figure 3 , Figure 8 shown, it is the position where the sliding part 41 drives the display screen 2 to slide close to the backlight 1. As Figure 4 and Figure 9 shown, it is the position where the sliding part 41 drives the display screen 2 to slide away from the backlight 1. Figure 3 and Figure 4 shown are the starting position and the ending position where the sliding part 41 drives the display screen 2 to reciprocate. Similarly, Figure 8 and Figure 9 shown are the starting position and the ending position where the sliding part 41 drives the display screen 2 to reciprocate. Driven by the sliding part 41, the display screen 2 can stop at any position between the starting position and the ending position, that is, the moving distance and the swing angle can be adjusted as needed.

[0036] The sliding part 41 is rotatably connected to the second connecting part 22. It can be understood that while the sliding part 41 drives the second connecting part 22 to reciprocate, the second connecting part 22 can rotate relative to the sliding part 41. This rotation can be understood as the self-rotation of the second connecting part 22 relative to the sliding part 41.

[0037] The working process of the image generation unit 100 of the present disclosure embodiment is as follows: According to the requirements of the moving direction and the swing direction of the display screen 2, the driving mechanism 4 controls the sliding part 41 to slide towards the direction close to the backlight 1 or away from the backlight 1. While the sliding part 41 slides, it will drive the second connecting part 22 to slide together. At this time, the second connecting part 22 will drive the first connecting part 21 and the display screen 2 to slide together. Since the sliding of the first connecting part 21 is restricted by the direction specified by the first guiding member 3, in order to prevent interference and jamming during the movement of the display screen 2, the second connecting part 22 will also rotate relative to the sliding part 41, and the first connecting part 21 will also rotate relative to the first guiding member 3. Based on this, the display screen 2 can slide and swing relative to the backlight 1, so as to achieve changing the optical path of the image projected by the backlight 1 by adjusting the distance and the swing angle between the display screen 2 and the backlight 1.

[0038] In the prior art, head-up displays are increasingly used in the scenario of vehicle driving information display. For existing head-up displays, the focusing plane (focal plane) of their virtual images is determined during design, processing, and manufacturing. After being assembled onto a vehicle, during daily driving, users cannot arbitrarily adjust the pose (position and / or angle) of the focal plane of the virtual image seen on the windshield according to driving scenarios, user head postures, user eye positions, etc., and cannot achieve personalized adaptation, resulting in poor user experience. Since the pose of the focal plane of the virtual image cannot be adjusted according to user needs, when users view the projected information of the virtual image and the real scene, they need to repeatedly switch the focal length of their eyes. During such long-term driving, it is easy to cause problems such as ciliary muscle fatigue and mental fatigue of users, leading to side effects that endanger driving safety and comfort, and also violating the original intention of the head-up display to improve driving safety. However, the technology according to the embodiments of the present disclosure can effectively solve the above problems. Specifically, under the drive of the sliding portion 41, the display screen 2 of the image generation unit 100 can be moved and swung relative to the backlight 1, so as to actively adjust or automatically adjust by vehicle intelligence according to user needs during the driver's driving process the pose (position and / or angle) of the dotted focal plane presented by the head-up display on the windshield glass, meeting the requirements of different driving scenarios, different user eye position heights, different user head postures, and different user driving habits. For example, when the vehicle is driving on a highway section, the driver usually pays attention to the road and vehicle conditions in the distance ahead of the vehicle. Therefore, the projection distance of the virtual image can be made relatively farther from the windshield glass, so that the driver can see the driving information displayed on the focal plane of the virtual image while looking at the road conditions in the distance through the windshield glass, without repeatedly switching the focal length of the eyes to view the projected information of the focal plane of the virtual image and the distant real scene. Another example is that when the vehicle is driving in a traffic congestion section, the driver usually pays attention to the road and vehicle conditions at a relatively close position ahead of the vehicle. Therefore, the projection distance of the virtual image can be made relatively closer to the windshield glass, so that the driver can see the driving information displayed on the focal plane of the virtual image while looking at the road conditions nearby through the windshield glass, without repeatedly switching the focal length of the eyes to view the projected information of the focal plane of the virtual image and the distant real scene. Another example is that if the focal plane of the virtual image is too vertical for the driver to directly see clearly and the driver needs to adjust the head posture, at this time, the virtual image can be deflected from a relatively vertical state to a relatively horizontal state, so that the driver can see the projected information of the focal plane of the virtual image and the real scene outside the vehicle at the same time. Another example is that if the focal plane of the virtual image is too horizontal for the driver to directly see clearly and the driver needs to adjust the head posture, at this time, the virtual image can be deflected from a relatively horizontal state to a relatively vertical state, so that the driver can see the projected information of the focal plane of the virtual image and the real scene outside the vehicle at the same time.

[0039] In one embodiment, in order to enable the first connecting portion 21 to slide and rotate more flexibly relative to the first guiding member 3, a bushing can be sleeved on the first connecting portion 21, so that the first connecting portion 21 can be more smoothly and movably connected to the first connecting portion 21.

[0040] In one embodiment, in order to make the sliding of the display screen 2 smoother, the first connecting portion 21 and the second connecting portion 22 can be connected by a swing rod 6, thereby increasing the linkage between the two. That is, when the sliding portion 41 drives the second connecting portion 22 to slide, the second connecting portion 22 can synchronously drive the first connecting portion 21 to slide along with it, so that the first connecting portion 21 and the second connecting portion 22 can drive the display screen 2 to slide together.

[0041] In one embodiment, the display screen 2 has a screen 23 (as Figure 1 shown) and a mounting opening 24 (as Figure 5 shown) that are oppositely arranged. A limiting portion 25 is provided on the outer edge of the mounting opening 24, and the light source output end 11 passes through the mounting opening 24 and extends into the interior of the display screen 2. A light-shielding portion 12 (as Figure 5 shown) is provided on the outer edge of the light source output end 11. In the case where the display screen 2 moves and is stationary relative to the backlight 1, the outer edge of the light-shielding portion 12 completely covers the outer edge of the limiting portion 25. During the process of the sliding portion 41 driving the display screen 2 to move, the limiting portion 25 is used to limit the movable range of the display screen 2. When the display screen 2 moves in the direction away from the backlight 1 until the limiting portion 25 abuts against the light-shielding portion 12, the display screen 2 cannot move further.

[0042] According to the embodiments of the present disclosure, it should be noted that:

[0043] The light-shielding portion 12 is made of a light-shielding material, and / or a light-shielding coating is provided on the surface of the light-shielding portion 12.

[0044] The specific position of the light-shielding portion 12 on the outer edge of the light source output end 11 can be adjusted according to the shape of the outer edge of the mounting opening 24, ensuring that during the movement of the display screen 2 relative to the backlight 1, the light-shielding portion 12 can always prevent the light of the backlight 1 from leaking out of the mounting opening 24, and can always prevent external light from entering the interior of the display screen 2 through the mounting opening 24.

[0045] According to the technology of the embodiments of the present disclosure, the problem of internal light leakage during the movement of the display can be effectively solved. Through the cooperation of the light-shielding portion 12 and the limiting portion 25, it is possible to achieve that the display screen 2 moves away from the backlight 1 without light leakage.

[0046] In one embodiment, the limiting portion 25 is provided on the outer edge of the mounting opening 24 at least in the height direction of the display screen 2.

[0047] A light-shielding portion 12 is circumferentially and uniformly provided on the outer edge of the light source output end 11, and the light-shielding portion 12 is a flanging structure. Among them, the flanging structure corresponding to the limiting portion 25 extends along the height direction of the display screen 2.

[0048] According to the technology of the embodiments of the present disclosure, the problem of internal light leakage during the movement of the display can be effectively solved. Through the cooperation of the light-shielding portion 12 and the limiting portion 25, it is possible to achieve that the display screen 2 moves away from the backlight 1 without light leakage.

[0049] In one embodiment, as Figure 4 , Figure 5 , Figure 6 and Figure 9 shown, the image generation unit 100 further includes:

[0050] A guiding mechanism, including a third connecting portion 51 and a second guiding member 52, and the third connecting portion 51 is slidably connected to the second guiding member 52.

[0051] Among them, the third connecting portion 51 is provided inside the display screen 2, and the second guiding member 52 is provided outside the backlight 1. Or, the third connecting portion 51 is provided outside the backlight 1, and the second guiding member 52 is provided inside the display screen 2.

[0052] According to the embodiments of the present disclosure, it should be noted that:

[0053] The specific structures of the third connecting portion 51 and the second guiding member 52 are not specifically limited herein, as long as the third connecting portion 51 can slide relative to the second guiding member 52. It should be noted that during the movement of the display screen 2 relative to the backlight 2, the third connecting portion 51 is always sliding in the second guiding member 52, and the two will not be separated.

[0054] Furthermore, in order to make the movement of the display screen 2 relative to the backlight 2 smoother and more stable, the size of the structure of the portion where the second guiding member 52 cooperates with the third connecting portion 51 can be slightly larger than the outer contour size of the third connecting portion 51. For example, when the structure where the second guiding member 52 cooperates with the third connecting portion 51 is a chute, the width of the chute can be slightly larger than the outer contour size of the third connecting portion 51 (slider).

[0055] According to the technology of the embodiments of the present disclosure, through the cooperation of the third connecting portion 51 and the second guiding member 52, the movement of the display screen 2 can be made smoother.

[0056] In one embodiment, the thickness of the second guide member 52 (i.e., the distance extending outward along the outer sidewall of the backlight 1) may be consistent with the width of the light-shielding portion 12 (i.e., the distance extending outward along the outer edge of the light output end 11 of the light source), so as to ensure that during the movement of the display screen 2, the second guide member 52 can assist the light-shielding portion 12 to shield the installation opening 24, preventing light leakage from the backlight 1 to outside the display screen 2.

[0057] In one embodiment, both the first guide member 3 and the second guide member 52 are chute structures, and both the first connecting portion 21 and the third connecting portion 51 are slider structures that cooperate with the chute structures. Among them, in a preferred example, a bushing can be sleeved outside the slider, so that the slider structure can be more smoothly and movably connected (sliding and rotating) with the chute structure.

[0058] In one embodiment, as Figure 1 and Figure 7 shown, on both sides of the display screen 2 in the width direction, first connecting portions 21 are oppositely arranged.

[0059] Outside both sides of the display screen 2 in the width direction, first guide members 3 are oppositely arranged.

[0060] Among them, the first connecting portion 21 and the first guide member 3 on the same side are movably connected.

[0061] According to the technology of the embodiments of the present disclosure, by driving the movement of the display screen 2 together through the sliding portions 41 on both sides of the display screen 2, the movement of the display screen 2 can be made more stable.

[0062] In one embodiment, on the first side of both sides of the display screen 2 in the width direction, a second connecting portion 22 is provided.

[0063] The driving mechanism 4 is arranged on the first side and is rotatably connected to the second connecting portion 22 on the same side through the sliding portion 41.

[0064] In one embodiment, second connecting portions 22 are provided on both sides of the display screen 2 in the width direction. Driving mechanisms 4 are provided on both sides of the display screen 2 in the width direction. Among them, the second connecting portion 22 and the driving mechanism 4 on the same side are movably connected.

[0065] In one embodiment, as Figures 7 to 9 shown, on both sides of the display screen 2 in the width direction, second connecting portions 22 are oppositely arranged.

[0066] The driving mechanism 4 is arranged between the two oppositely arranged second connecting portions 22, and the sliding portion 41 of the driving mechanism 4 is rotatably connected to the two second connecting portions 22 simultaneously through the synchronizing rod 7.

[0067] AsFigure 10 As shown, an embodiment of the present disclosure provides a head-up display, including: an image generation unit 100 according to any embodiment of the present disclosure.

[0068] Specifically, the head-up display 200 includes a housing 201, an image generation unit 100, and a mirror 202. The mirror 202 and the image generation unit 100 are disposed within the housing.

[0069] The image output by the display screen 2 forms a virtual image 400 shown on the windshield 300 of the vehicle through the optical path between the image generation unit 100 and the mirror 202.

[0070] According to an embodiment of the present disclosure, it should be noted that:

[0071] The head-up display 200 described in any embodiment of the present disclosure can be applied to a vehicle. The image generated by the head-up display 200 is presented as a virtual image 400 visible to the user through the windshield 300 of the vehicle. The user may include the driver and / or passengers of the vehicle.

[0072] The number of mirrors 202 and the setting position relative to the image generation unit 100 can be selected and adjusted as needed, as long as it can be realized that the image output by the image generation unit 100 through the display screen 2 is projected onto the windshield 300 through the optical path between the image generation unit 100 and the mirror 202 to form a virtual image.

[0073] In the prior art, head-up displays are increasingly applied to the scenario of vehicle driving information display. For existing head-up displays, the focusing plane (focal plane) of their virtual images is determined during design, processing, and manufacturing. After being assembled onto a vehicle, during daily driving, users cannot arbitrarily adjust the pose (position and / or angle) of the focal plane of the virtual image seen on the windshield according to driving scenarios, user head postures, user eye positions, etc., and cannot achieve personalized adaptation, resulting in a poor user experience. Since the pose of the focal plane of the virtual image cannot be adjusted according to user needs, when users view the projected information of the virtual image and the real scene, they need to repeatedly switch the focal length of the eyeballs. During such long-term driving, it is easy to cause problems such as ciliary muscle fatigue and mental fatigue of users, leading to side effects that endanger driving safety and comfort, and also violating the original intention of the head-up display to improve driving safety. The technology according to the embodiments of the present disclosure can effectively solve the above problems. Specifically, under the drive of the sliding part 41, the display screen 2 of the image generation unit 100 can be moved and swung relative to the backlight 1, so as to actively adjust or automatically adjust by vehicle intelligence according to user needs during the driver's driving process the pose (position and / or angle) of the dotted focal plane presented by the head-up display on the windshield glass, meeting the needs of different driving scenarios, different user eye position heights, different user head postures, and different user driving habits. For example, when the vehicle is driving on a highway, the driver usually pays attention to the road and vehicle conditions in the distance ahead. Therefore, the projection distance of the virtual image can be made relatively farther from the windshield glass, so that the driver can see the driving information displayed on the focal plane of the virtual image while looking at the road conditions in the distance through the windshield glass, without repeatedly switching the focal length of the eyeballs to view the projected information of the focal plane of the virtual image and the distant real scene. Another example is that when the vehicle is driving in a traffic congestion section, the driver usually pays attention to the road and vehicle conditions in a relatively close position ahead. Therefore, the projection distance of the virtual image can be made relatively closer to the windshield glass, so that the driver can see the driving information displayed on the focal plane of the virtual image while looking at the road conditions in the near distance through the windshield glass, without repeatedly switching the focal length of the eyeballs to view the projected information of the focal plane of the virtual image and the distant real scene. Another example is that if the focal plane of the virtual image is too vertical for the driver to directly see clearly and the driver needs to adjust the head posture, at this time, the virtual image can be deflected from a relatively vertical state to a relatively horizontal state, so that the driver can see the projected information of the focal plane of the virtual image and the real scene outside the vehicle at the same time. Another example is that if the focal plane of the virtual image is too horizontal for the driver to directly see clearly and the driver needs to adjust the head posture, at this time, the virtual image can be deflected from a relatively horizontal state to a relatively vertical state, so that the driver can see the projected information of the focal plane of the virtual image and the real scene outside the vehicle at the same time.

[0074] An embodiment of the present disclosure provides a vehicle, including the image generation unit according to any embodiment of the present disclosure.

[0075] In the description of this specification, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present disclosure and simplifying the description, 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 should not be construed as a limitation to the present disclosure.

[0076] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present disclosure, "a plurality" means two or more, unless otherwise specifically defined.

[0077] In the present disclosure, unless otherwise clearly defined and limited, terms such as "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0078] In the present disclosure, unless otherwise clearly defined and limited, the fact that the first feature is "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the fact that the first feature is "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The fact that the first feature is "below", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0079] The foregoing disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. To simplify the disclosure of the present disclosure, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0080] The above specific embodiments do not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. An image generation unit, characterized in that: include: Backlight source; A display screen is movably mounted on the outside of the light source output end of the backlight source, and the display screen includes a first connecting portion and a second connecting portion; A first guide member, movably connected to the first connecting portion; A driving mechanism, comprising a sliding portion, the sliding portion being reciprocatingly slidable in a direction approaching the backlight source and away from the backlight source, and the sliding portion being rotatably connected to the second connecting portion; Wherein, when the sliding part slides, the second connecting part slides and rotates together with the sliding part, and drives the first connecting part to slide and rotate relative to the first guide member, so that the display screen moves and swings relative to the backlight source.

2. The image generation unit according to claim 1, characterized in that The display screen has a screen and a mounting opening which are arranged opposite to each other, a limiting portion is arranged at the outer edge of the mounting opening, and the light source output end passes through the mounting opening and extends to the interior of the display screen; A shading portion is disposed at the outer edge of the light source output end. When the display screen moves or remains stationary relative to the backlight source, the outer edge of the shading portion completely covers the outer edge of the limiting portion.

3. The image generation unit according to claim 2, characterized in that The installation opening is provided with the limiting portion at least along the height direction of the display screen; The shading portion is disposed around the outer edge of the light source output end, and the shading portion is a flange structure, wherein the flange structure corresponding to the limiting portion extends along the height direction of the display screen.

4. The image generation unit according to claim 2, characterized in that: Also includes: The guide mechanism comprises a third connecting portion and a second guide member, wherein the third connecting portion is slidably connected to the second guide member; Wherein, the third connecting portion is arranged on the inner side of the display screen, and the second guiding member is arranged on the outer side of the backlight source; or, the third connecting portion is arranged on the outer side of the backlight source, and the second guiding member is arranged on the inner side of the display screen.

5. The image generation unit according to claim 2, characterized in that: The light-shielding portion is made of a light-shielding material, and / or a light-shielding coating is provided on the surface of the light-shielding portion.

6. The image generation unit according to any one of claims 1 to 4, characterized in that: The first connecting parts are arranged opposite to each other on both sides of the display screen along the width direction; The first guide members are arranged opposite to each other on the outside of both sides of the display screen along the width direction; Wherein, the first connecting portion and the first guiding member on the same side are movably connected.

7. The image generation unit according to claim 6, characterized in that The second connecting portion is provided on a first side of two sides of the display screen along the width direction; The driving mechanism is disposed on the first side and is rotatably connected to the second connecting portion on the same side through the sliding portion.

8. The image generation unit according to claim 6, characterized in that: The second connecting parts are arranged opposite to each other on both sides of the display screen along the width direction; The driving mechanism is arranged between two second connecting parts arranged opposite to each other, and the sliding part of the driving mechanism is rotatably connected to the two second connecting parts simultaneously through a synchronization rod.

9. A head-up display, characterized in that: include: An image generating unit as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: include: A heads-up display as claimed in claim 9.

Images