Display device and vehicle

Abstract

The invention provides a display device and a vehicle, and relates to the technical field of optical display, the display device comprises an image display panel, a middle reflection module and an emergent reflection module, an image light beam emitted by the image display panel is emitted to the outside of the display device through the middle reflection module and the emergent reflection module; wherein the optical paths of the at least two image light beams reflected by the middle reflection module are unequal. Through the arrangement, the display device can have a plurality of imaging focal planes with different focal lengths, so that visual information of different angles can be fused in the same display picture of the image display panel, and after the visual information is reflected by the middle reflection module and the emergent reflection module, a display effect of fusing the plurality of focal planes can be realized; the adjusting load of eye muscles is dispersed, so that visual fatigue and dizziness caused by watching a picture of a single focal plane for a long time are relieved, and the use experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of optical display technology, and in particular to a display device and a vehicle. Background Technology

[0002] With the continuous development of display device technology, display devices are being applied in a variety of different fields.

[0003] In related technologies, display devices often display images directly through a screen, or use a screen and a series of optical elements to transmit and guide images, ultimately projecting them onto the user's eyes or the external environment. When display devices are used in the field of transportation, the space inside the cabin is limited, and the size of the display device is fixed. The distance between the user and the display device is fixed, and prolonged viewing of the display device can easily cause visual fatigue and dizziness, resulting in a poor user experience.

[0004] Therefore, there is an urgent need for a display device that can alleviate visual fatigue and dizziness, thereby improving the user experience. Summary of the Invention

[0005] This application provides a display device and a vehicle that can at least alleviate user discomfort such as visual fatigue and dizziness, and improve the user experience.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] In a first aspect, this application provides a display device, comprising:

[0008] An image display panel for emitting an image beam.

[0009] Intermediate reflection module.

[0010] Emission reflection module.

[0011] The image beam emitted by the image display panel is emitted to the outside of the display device via the intermediate reflection module and the outgoing reflection module; wherein, the optical path lengths of at least two image beams reflected by the intermediate reflection module are not equal.

[0012] As an optional implementation, the image display panel includes multiple image display units; the intermediate reflection module includes multiple reflection units, and the reflection units and the image display units are arranged in a one-to-one correspondence; the spacing between at least two of the image display units and their corresponding reflection units is different.

[0013] As an optional implementation, the plurality of image display units include a first image display unit and a second image display unit.

[0014] The plurality of reflective portions include a first reflective portion and a second reflective portion, wherein the first reflective portion and the first image display portion are correspondingly disposed, and the second reflective portion and the second image display portion are correspondingly disposed.

[0015] Along the optical path direction of the display device, there is a first distance between the first reflective part and the first image display part, and a second distance between the second reflective part and the second image display part, wherein the first distance is smaller than the second distance.

[0016] As an optional implementation, the first image display unit and the second image display unit are located on the same display plane; along the optical path direction of the display device, the first reflective part and the second reflective part are staggered so that the first spacing is smaller than the second spacing.

[0017] As an optional implementation, the first reflective portion and the second reflective portion are located on the same reflective plane; along the optical path direction of the display device, the first image display portion and the second image display portion are staggered so that the first spacing is smaller than the second spacing.

[0018] As an optional implementation, the display device further includes a housing and a light-transmitting panel, wherein the image display panel, the intermediate reflection module, and the outgoing reflection module are all disposed within the housing; the housing has a mounting opening, and the light-transmitting panel is disposed within the housing and closes the mounting opening.

[0019] The intermediate reflective module is rotatably mounted relative to the housing about a first rotation axis.

[0020] And / or, the emission reflector module is rotatably disposed relative to the housing about a second rotation axis.

[0021] The first rotation axis and the second rotation axis are arranged in parallel.

[0022] As an optional implementation, the display device further includes a driver that is disposed on the housing and drives at least one of the intermediate reflection module and the outgoing reflection module.

[0023] The driving component is used to drive the corresponding intermediate reflection module to rotate around the first rotation axis, and to drive the corresponding output reflection module to rotate around the second rotation axis.

[0024] As an optional implementation, the angle by which the outgoing reflective module rotates about the second rotation axis is α, wherein α satisfies: -5°≤α≤5°.

[0025] As an optional implementation, the display device further includes a detection element disposed on the housing and facing outwards from the housing, the detection element being used to acquire position information of the imaging element.

[0026] The display device further includes a controller electrically connected to the detection element and the driving element; the controller is used to control the driving element to drive the corresponding intermediate reflection module to rotate and drive the corresponding output reflection module to rotate, based on the position information of the imaging element obtained by the detection element.

[0027] Secondly, this application provides a means of transportation, comprising:

[0028] cockpit.

[0029] The display device is disposed in the cockpit; the display device is the display device described in any one of the first aspects.

[0030] The display device and vehicle provided in this application have an image beam emitted from the image display panel, which is then emitted to the outside of the display device through an intermediate reflection module and an outgoing reflection module. At least two image beams reflected by the intermediate reflection module have unequal optical path lengths, resulting in different focal planes for the virtual images corresponding to the at least two image beams of the display device. The display device has a display effect that blends at least two different focal planes, allowing the lens to adjust its focus naturally and autonomously according to the different focal planes when the user is viewing the screen. This allows the eye muscles to relax and relax appropriately, reducing the accommodative load on the eye muscles and alleviating visual fatigue and dizziness caused by prolonged viewing of a screen with only a single focal plane. In other words, such a display device can improve user comfort and further enhance the user experience.

[0031] In addition to the technical problems solved by this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems solved by the display device and vehicle provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1Schematic diagram of the optical path of the first display device provided in the embodiments of this application Figure 1 ;

[0034] Figure 2 Schematic diagram of the optical path of the first display device provided in the embodiments of this application Figure 2 ;

[0035] Figure 3 Schematic diagram of the optical path of the second display device provided in the embodiments of this application Figure 1 ;

[0036] Figure 4 Schematic diagram of the optical path of the second display device provided in the embodiments of this application Figure 2 ;

[0037] Figure 5 Schematic diagram of the optical path of the third display device provided in the embodiments of this application Figure 1 ;

[0038] Figure 6 Schematic diagram of the optical path of the third display device provided in the embodiments of this application Figure 2 ;

[0039] Figure 7 A projection schematic diagram of the image display panel of the first type of display device provided in the embodiments of this application;

[0040] Figure 8 A projection schematic diagram of the image display panel of the second and third display devices provided in the embodiments of this application;

[0041] Figure 9 A schematic diagram of another image display panel of the display device provided in the embodiments of this application. Figure 1 ;

[0042] Figure 10 A schematic diagram of another image display panel of the display device provided in the embodiments of this application. Figure 2 ;

[0043] Figure 11 A schematic diagram of another image display panel of the display device provided in the embodiments of this application. Figure 3 ;

[0044] Figure 12 A schematic diagram of another image display panel of the display device provided in the embodiments of this application. Figure 4 ;

[0045] Figure 13 This is a projection diagram of the intermediate reflective module of the third display device provided in the embodiments of this application;

[0046] Figure 14This is a schematic diagram of the appearance of the display device provided in the embodiments of this application;

[0047] Figure 15 An exploded view of the structure of a first display device provided in the embodiments of this application;

[0048] Figure 16 A front view of a first type of display device provided in an embodiment of this application;

[0049] Figure 17 for Figure 16 Sectional view along axis AA;

[0050] Figure 18 A front view of a second display device provided in an embodiment of this application;

[0051] Figure 19 for Figure 18 Sectional view along axis AA;

[0052] Figure 20 A front view of a third display device provided in an embodiment of this application;

[0053] Figure 21 for Figure 20 Sectional view along axis AA;

[0054] Figure 22 This is a schematic diagram of the rotation angle of the emission reflection module in the display device provided in the embodiments of this application.

[0055] Explanation of reference numerals in the attached figures:

[0056] 100 - Display device;

[0057] 110 - Image display panel; 111 - Image display unit; 1111 - First image display unit; 1112 - Second image display unit; 1113 - Third image display unit; 1114 - Fourth image display unit;

[0058] 120 - Intermediate reflective module; 121 - Reflective part; 1211 - First reflective part; 1212 - Second reflective part; 122 - Support;

[0059] 130 - Outgoing reflector module;

[0060] 140-Transmitting panel;

[0061] 150 - Housing; 151 - Mounting opening; 152 - First part; 153 - Second part; 154 - Third part; 155 - Fourth part;

[0062] 160 - Drive component;

[0063] 170 - Circuit board;

[0064] 180 - focal plane; 181 - first focal plane; 182 - second focal plane. Detailed Implementation

[0065] In related technologies, display devices include image display panels. Common image display panels include liquid crystal displays (LCDs) and organic light-emitting diode displays (OLEDs). Image display panels can directly display images.

[0066] Alternatively, the display device includes an image display panel and optical elements. The image display panel is used to emit image light, and the optical elements are disposed in the optical path of the display device. The optical elements are used to guide and transmit the image light emitted from the image display panel by means of reflection, refraction, transmission, etc., so as to transmit the image light to the outside of the display device and be acquired by the user.

[0067] However, researchers have found that when display devices are installed in the cabin of a vehicle, the space inside the cabin is limited, and the size of the display device is fixed. The distance between the passenger and the display device is also fixed. Passengers will experience visual fatigue, dizziness and other discomforts from looking at the display device for a long time, which will lead to a poor user experience.

[0068] To address this issue, related technologies have increased the physical size of display devices, creating ultra-large image display effects to alleviate the aforementioned discomfort to some extent. However, research has revealed that while the physical size of the display device has increased, the displayed image remains on the same focal plane. When a user views different images, the lens's focus adjustment cannot adapt to changes in the displayed image, resulting in the lens remaining in a constant state of tension. This leads to continued visual fatigue and dizziness even after prolonged viewing.

[0069] To address the aforementioned technical problems, this application provides a display device and a vehicle. An image beam emitted from an image display panel passes through an intermediate reflection module and an outgoing reflection module before exiting to the outside of the display device. At least two image beams reflected by the intermediate reflection module have unequal optical path lengths. This results in the virtual images corresponding to the at least two image beams of the display device being located on different focal planes. The display device exhibits a display effect that blends at least two different focal planes, allowing the lens to autonomously and naturally adjust its focus according to the different focal planes when the user views the image. This enables the eye muscles to relax and unwind, reducing the accommodative load on the eye muscles and alleviating visual fatigue and dizziness caused by prolonged viewing of an image on a single focal plane. In other words, such a display device enhances user comfort and improves the user experience.

[0070] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0071] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0072] Combination Figure 1 and Figure 2 Combination Figure 3 and Figure 4 Combination Figure 5 and Figure 6 The front-to-back direction of the display device 100 is defined as the Y direction, and the X and Z directions are both perpendicular to the Y direction. It should be noted that the front side of the display device 100 is the image display side.

[0073] The display device 100 in this embodiment includes an image display panel 110. The image display panel 110 can be an LED screen, an OLED screen, etc., but this embodiment does not require it to be such a screen. It is understood that the image display panel 110 can display images by emitting image beams.

[0074] For example, the image display panel 110 can be a regular shape, such as a square, triangle, circle, or other regular shape. The image display panel 110 can also be an irregular shape. This embodiment does not require this.

[0075] The display device 100 in this embodiment further includes an intermediate reflection module 120 and an outgoing reflection module 130. The intermediate reflection module 120 reflects the image beam emitted from the image display panel 110 to the outgoing reflection module 130. The outgoing reflection module 130 reflects the image beam reflected by the intermediate reflection module 120 to the outside of the display device 100. It should be noted that both the intermediate reflection module 120 and the outgoing reflection module 130 in this embodiment are freeform mirrors and do not refract the image beam.

[0076] Those skilled in the art will readily understand that the number of image beams emitted by the image display panel 110 is multiple, that is, the number of image beams is two or more, and no specific requirement is made for the number of image beams.

[0077] Among the multiple image beams, at least two image beams reflected by the intermediate reflection module 120 have different optical path lengths, such as... Figure 1 , Figure 3 and Figure 5 The dashed and solid arrows in the image indicate two different light paths. Thus, the focal planes 180 corresponding to the virtual images of at least two image beams are located at different positions. That is, the imaging focal lengths of at least two focal planes 180 of the display device 100 are different. In this way, the display device 100 can fuse visual information from different angles in the same display screen. After reflection by the intermediate reflection module 120 and the outgoing reflection module 130, it achieves a display effect of fusion of at least two focal planes 180. This allows the lens to naturally adjust its focus according to the different focal planes 180 when the user is viewing the image, resulting in more controlled eye muscle tension and relaxation and reducing the accommodative load on the eye muscles. This alleviates visual fatigue and dizziness caused by prolonged viewing of the same focal plane. In other words, such a display device 100 can improve user comfort and further enhance the user experience.

[0078] Furthermore, the display device 100 in this embodiment has different focal planes 180, which enhances the depth of field of the image displayed by the display device 100, creating a realistic stereoscopic visual effect and giving the image of the display device 100 a sense of depth. When the display device 100 is used to play videos or game screens, it makes the user more immersive and further enhances the user experience.

[0079] Furthermore, by using the intermediate reflection module 120 and the outgoing reflection module 130 to guide and transmit the image beam solely through reflection, the light loss caused by refraction of the image beam is avoided, ensuring that the brightness of the final outgoing image beam is not reduced, thereby guaranteeing the brightness and display performance of the display device 100.

[0080] For example, the number of intermediate reflection modules 120 in the embodiments of this application can be one, two or more.

[0081] When there are two or more intermediate reflection modules 120, the two or more intermediate reflection modules 120 are disposed between the image display panel 110 and the outgoing reflection module 130. The two or more intermediate reflection modules 120 guide and transmit at least one image beam emitted from the image display panel 110 in a manner of multiple reflections, so that the optical path of the image beam is different from that of other image beams.

[0082] To facilitate understanding of the embodiments of this application by those skilled in the art, this embodiment is illustrated using two image beams as an example.

[0083] When there are two intermediate reflection modules 120, one image beam can be reflected by one of the intermediate reflection modules 120, and the other image beam is reflected by the other intermediate reflection module 120, so that the optical paths of the two image beams are not equal, and the positions of the focal planes 180 corresponding to the virtual images of the two image beams are different.

[0084] When there are two or more intermediate reflection modules 120, the two image beams are reflected by different numbers of intermediate reflection modules 120, so that the optical paths of the two image beams are not equal, and the positions of the focal planes 180 corresponding to the virtual images of the two image beams are different.

[0085] As an optional implementation, the display device 100 can also achieve at least two different focal planes 180 by changing the different spacing between the image display panel 110 and the intermediate reflection module 120 along the optical path direction of the display device 100, so as to realize that the optical path of at least two image beams reflected by the intermediate reflection module 120 is not equal.

[0086] For example, the image display panel 110 includes a plurality of image display units 111. The intermediate reflection module 120 includes a plurality of reflection units 121, and the reflection units 121 and the image display units 111 are arranged in a one-to-one correspondence; along the optical path direction of the display device 100, the spacing between at least two image display units 111 and their corresponding reflection units 121 is different. Thus, the different spacing between different image display units 111 and their corresponding reflection units 121 causes the optical path of the image light emitted from each image display unit 111 to differ during the initial reflection, resulting in different focal planes 180 corresponding to the images displayed by each image display unit 111. In this way, the user's lens can make natural and slight adjustments according to the different positions of the focal planes 180 when viewing the screen, thereby relieving the continuous tension of the ciliary muscle, thus alleviating the user's visual fatigue and dizziness, and further improving the user experience.

[0087] It should be noted that in this embodiment, the number of image display units 111 is two or more, and the number of reflective units 121 is also two or more.

[0088] In some embodiments, when there are two image display units 111, the two image display units 111 are defined as a first image display unit 1111 and a second image display unit 1112. Correspondingly, there are two reflective units 121, defined as a first reflective unit 1211 and a second reflective unit 1212. In this embodiment, the first image display unit 1111 and the first reflective unit 1211 correspond, and the second image display unit 1112 and the second reflective unit 1212 correspond. Along the optical path of the display device 100, the distance between the first image display unit 1111 and the first reflective unit 1211 is a first distance; a distance greater than or less than the distance between the second image display unit 1112 and the second reflective unit 1212 is a second distance. The first distance is greater than or less than the second distance. The virtual image of the image displayed by the first image display unit 1111 is located at a first focal plane 181, and the virtual image of the image displayed by the second image display unit 1112 is located at a second focal plane 182.

[0089] When the first spacing is less than the second spacing, see Figure 2 , Figure 4 , Figure 6 The first focal plane 181 is located on the side of the second focal plane 182 closer to the outgoing reflector module 130. When the first pitch is greater than the second pitch, the first focal plane 181 is located on the side of the second focal plane 182 away from the outgoing reflector module 130.

[0090] In this embodiment, the relative positional relationship between the first image display unit 1111 and the second image display unit 1112 can be varied. For example, see [link to example]. Figure 2 and Figure 7On the XZ plane, the shape of the projection of the first image display unit 1111 is square, and the projection of the first image display unit 1111 is located on one side of the projection of the second image display unit 1112 along the Z direction.

[0091] In one embodiment, combined with Figure 4 , Figure 6 and Figure 8 On the XZ plane, the shape of the projection of the first image display unit 1111 and the shape of the projection of the second image display unit 1112 are both square, and the projection of the first image display unit 1111 is located on one side of the projection of the second image display unit 1112 along the X direction.

[0092] In one embodiment, see Figure 9 On the XZ plane, the shape of the projection of the first image display unit 1111 and the shape of the projection of the second image display unit 1112 are both directions, and the projection of the first image display unit 1111 is located within the projection of the second image display unit 1112.

[0093] In one embodiment, see Figure 10 On the XZ plane, the shape of the projection of the first image display unit 1111 and the shape of the projection of the second image display unit 1112 are both triangles.

[0094] It should be noted that when there are two image display units 111, the size of the projection of the first image display unit 1111 can be greater than, equal to or smaller than the size of the projection of the second image display unit 1112. This embodiment does not make specific requirements in this regard.

[0095] In some embodiments, when the number of image display units 111 is three, the three image display units 111 are defined as a first image display unit 1111, a second image display unit 1112, and a third image display unit 1113. Correspondingly, the number of reflective units 121 is three, and the three reflective units 121 are defined as a first reflective unit 1211, a second reflective unit 1212, and a third reflective unit 121. In this embodiment, the first image display unit 1111 and the first reflective unit 1211 correspond, the second image display unit 1112 and the second reflective unit 1212 correspond, and the third image display unit 1113 and the third reflective unit 121 correspond. Along the optical path direction of the display device 100, the distance between the first display unit and the first reflective unit 1211 is a first distance, the distance between the second display unit and the third reflective unit 121 is a second distance, and the distance between the third image display unit 1113 and the third reflective unit 121 is a third distance.

[0096] Wherein, the first spacing is equal to the second spacing and less than or greater than the third spacing, and at this time, the virtual images of the images displayed by the first image display unit 1111 and the second image display unit 1112 are both located on the same focal plane 180, and the virtual image of the image displayed by the third image display unit 1113 is located on one focal plane 180, and the positions of the two focal planes 180 are different.

[0097] Alternatively, the first spacing is equal to the third spacing, and less than or greater than the third spacing. In this case, the virtual images of the images displayed by the first image display unit 1111 and the third image display unit 1113 are both located on the same focal plane 180, and the virtual images of the images displayed by the second image display unit 1112 are located on one focal plane 180, and the positions of the two focal planes 180 are different.

[0098] Alternatively, the second spacing is equal to the third spacing and less than or greater than the first spacing. In this case, the virtual images of the images displayed by the second image display unit 1112 and the third image display unit 1113 are both located on the same focal plane 180, and the virtual image of the image displayed by the first image display unit 1111 is located on a focal plane 180, and the positions of the two focal planes 180 are different.

[0099] Alternatively, the first spacing, the second spacing, and the third spacing may all be different. In this case, the virtual image of the image displayed by the first image display unit 1111 is located at a focal plane 180, the virtual image of the image displayed by the second image display unit 1112 is located at a focal plane 180, and the virtual image of the image displayed by the third image display unit 1113 is located at a focal plane 180, and the positions of the three focal planes 180 are all different.

[0100] See Figure 11 For example, on the XZ plane, the shapes of the projections of the first image display unit 1111, the second image display unit 1112, and the third image display unit 1113 are all square, and the projections of the first image display unit 1111 and the third image display unit 1113 surround the periphery of the second image display unit 1112.

[0101] It should be noted that when there are three image display units 111, the projection size of the first image display unit 1111, the projection size of the second image display unit 1112, and the projection size of the third image display unit 1113 can be the same or different. This embodiment does not make specific requirements in this regard.

[0102] See Figure 12For example, there are four image display units 111, which are defined as a first image display unit 1111, a second image display unit 1112, a third image display unit 1113, and a fourth image display unit 1114. The projections of the first image display unit 1111, the third image display unit 1113, and the fourth image display unit 1114 onto the XZ plane are all circular, while the projection of the second image display unit 1112 onto the XZ plane is square. Furthermore, the projections of the first image display unit 1111, the third image display unit 1113, and the fourth image display unit 1114 are all located within the second image display unit 1112. It should be noted that in this embodiment, there are also four reflective units 121, each corresponding to one of the image display units 111. Those skilled in the art, in conjunction with the correspondence and positional relationship between the three image display units 111 and the three reflective units 121 in the foregoing embodiments, can easily understand the correspondence and positional relationship between the four image display units 111 and the four reflective units 121 in this embodiment, and will not elaborate further.

[0103] It should be noted that when there are four image display units 111, the projection size of the first image display unit 1111, the projection size of the second image display unit 1112, the projection size of the third image display unit 1113, and the projection size of the fourth image display unit 1114 can be the same or different. This embodiment does not make specific requirements in this regard.

[0104] It should be noted that the plurality of image display units 111 in the embodiments of this application can be a plurality of LED screens or a plurality of OLED screens. The plurality of image display units 111 can be a plurality of display areas of the image display panel 110 (LED screen or OLED screen), or the plurality of image display units 111 can be a plurality of pixels of the image display panel 110 (LED screen or OLED screen).

[0105] Specifically, in this embodiment, the size of the reflective part 121 covers the cross-sectional area of ​​the image beam emitted by the corresponding image display part 111, so as to ensure that the image beam emitted by the corresponding image display part 111 can be completely reflected by the corresponding reflective part 121 to the emission reflection module 130, thereby further ensuring the integrity of the image displayed by the display device 100 and improving the display performance of the display device 100.

[0106] For example, in this embodiment, the plurality of image display units 111 include a first image display unit 1111 and a second image display unit 1112; the plurality of reflective units 121 include a first reflective unit 1211 and a second reflective unit 1212, wherein the first reflective unit 1211 and the first image display unit 1111 are correspondingly arranged, and the second reflective unit 1212 and the second image display unit 1112 are correspondingly arranged.

[0107] Along the optical path direction of the display device 100, there is a first gap between the first reflective part 1211 and the first image display part 1111, and a second gap between the second reflective part 1212 and the second image display part 1112, wherein the first gap is smaller than the second gap.

[0108] As will be understood by those skilled in the art, the display device 100 in this embodiment can form two different focal planes 180 through the mutual cooperation of the first image display unit 1111 and the first reflective unit 1211, and the mutual cooperation of the second image display unit 1112 and the second reflective unit 1212. Figure 1 and Figure 2 Combination Figure 3 and Figure 4 Combination Figure 5 and Figure 6 The virtual image of the image beam emitted by the first image display unit 1111 is located at the first focal plane 181, and the virtual image of the image beam emitted by the second image display unit 1112 is located at the second focal plane 182. Since the first spacing is smaller than the second spacing, the second focal plane 182 is located on the side of the first focal plane 181 away from the emission reflection module 130 along the Y direction.

[0109] Thus, when a user browses the image displayed on the display device 100, the lens can naturally adjust its focus according to the different positions of the first focal plane 181 and the second focal plane 182. This alleviates eye strain caused by prolonged viewing of an image on a single focal plane and prevents discomfort such as dizziness, thereby improving the user experience. Furthermore, the image displayed on the image display panel 110 ultimately presents different depth levels, making the three-dimensional depth of the image displayed by the display device 100 richer, thus ensuring the display performance of the display device 100.

[0110] It should be noted that, in this embodiment, the length of the projection of the line connecting the first image display unit 1111 and the first reflective unit 1211 onto the XY plane along the optical path direction of the display device 100 is the first spacing, and the length of the projection of the line connecting the second image display unit 1112 and the second reflective unit 1212 onto the XY plane is the second spacing.

[0111] As an optional implementation method, combined with Figure 1 , Figure 2 and Figure 7 , combined Figure 3 , Figure 4 and Figure 8The first image display unit 1111 and the second image display unit 1112 are located on the same display plane; along the optical path direction of the display device 100, the first reflective part 1211 and the second reflective part 1212 are staggered so that the first gap is smaller than the second gap.

[0112] In this embodiment, by offsetting the first reflective part 1211 and the second reflective part 1212 along the optical path direction of the display device 100, the first spacing is smaller than the second spacing. When the first image display part 1111 and the second image display part 1112 synchronously emit image beams, since the first spacing is smaller than the second spacing, the total optical path length of the image beam emitted by the first image display part 1111 being reflected by the first reflective part 1211 to the emission reflection module 130 and then reflected by the emission reflection module 130 to the outside of the display device 100 is less than the total optical path length of the image beam emitted by the second image display part 1112 being reflected by the second reflective part 1212 to the emission reflection module 130 and then reflected by the emission reflection module 130 to the outside of the display device 100, so that the display device 100 has two different focal planes 180.

[0113] It should be noted that in this embodiment, the first image display unit 1111 and the second image display unit 1112 can be two different display areas of the same image display panel 110, or the first image display unit 1111 and the second image display unit 1112 can be different display screens. When the first image display unit 1111 and the second image display unit 1112 are different display screens, the brightness and color parameters of the image light emitted by the first image display unit 1111 and the second image display unit 1112 can be controlled independently, making the image display of the display device 100 more flexible. Furthermore, the image beam emitted by the first image display unit 1111 and the image beam emitted by the second image display unit 1112 have a clear distinction, allowing the first focal plane 181 and the second focal plane 182 to be significantly distinguishable.

[0114] As an optional implementation method, combined with Figure 5 , Figure 6 and Figure 13 The first reflective part 1211 and the second reflective part 1212 are located on the same reflective plane; along the optical path direction of the display device 100, the first image display part 1111 and the second image display part 1112 are staggered so that the first gap is smaller than the second gap.

[0115] In this embodiment, by offsetting the first image display unit 1111 and the second image display unit 1112 along the optical path direction of the display device 100, the first spacing is smaller than the second spacing. When the first image display unit 1111 and the second image display unit 1112 synchronously emit image beams, since the first spacing is smaller than the second spacing, the total optical path length of the image beam emitted by the first image display unit 1111 being reflected by the first reflector 1211 to the emission reflector module 130 and then reflected by the emission reflector module 130 to the outside of the display device 100 is less than the total optical path length of the image beam emitted by the second image display unit 1112 being reflected by the second reflector 1212 to the emission reflector module 130 and then reflected by the emission reflector module 130 to the outside of the display device 100, so that the display device 100 has two different focal planes 180.

[0116] It should be noted that in this embodiment, the first image display unit 1111 and the second image display unit 1112 are different display screens. The first reflective part 1211 and the second reflective part 1212 can be two different curved mirrors located on the same reflective plane, or the first reflective part 1211 and the second reflective part 1212 can be two different reflective areas of the same reflective mirror.

[0117] As an optional implementation, the depth of field of the image displayed by the first image display unit 1111 may be less than the depth of field of the image displayed by the second image display unit 1112.

[0118] See Figures 14 to 21 The display device 100 in this embodiment further includes a housing 150 and a light-transmitting panel 140. The image display panel 110, the intermediate reflection module 120 and the outgoing reflection module 130 are all disposed inside the housing 150. The housing 150 has an installation opening 151, and the light-transmitting panel 140 is disposed on the housing 150 and closes the installation opening 151.

[0119] Thus, the image display panel 110, the intermediate reflection module 120, and the outgoing reflection module 130 are placed inside the housing 150, so that the housing 150 provides support and connection for the image display panel 110, the intermediate reflection module 120, and the outgoing reflection module 130, and also protects the image display panel 110, the intermediate reflection module 120, and the outgoing reflection module 130, preventing external substances (dust, moisture, etc.) from entering the housing 150, thereby avoiding the adverse effects of these substances on the image display panel 110, the intermediate reflection module 120, and the outgoing reflection module 130, and improving the display reliability and display effect of the display device 100.

[0120] For example, the housing 150 in this embodiment includes a first part 152, a second part 153, a third part 154, and a fourth part 155. The first part 152 and the second part 153 can be connected by a snap-fit ​​mechanism, or by a threaded connector. The third part 154 and the first part 152 can be connected by a snap-fit ​​mechanism, or by a threaded connector. The third part 154 and the second part 153 are connected by a snap-fit ​​mechanism, or by a threaded connector. The fourth part 155 is connected to the first part 152 either by a threaded connector or by a snap-fit ​​mechanism.

[0121] The circuit board 170 is disposed between the fourth part 155 and the first part 152, and is connected to the image display panel 110. The image display panel 110 is connected to the inner wall of the first part 152. The intermediate reflective module 120 is connected to the inner wall of the second part 153 via the bracket 122. The outgoing reflective module 130 is connected to the third part 154. The mounting opening 151 is disposed in the third part 154. The light-transmitting panel 140 is connected to the third part 154 by snap-fit ​​or adhesive to close the mounting opening 151.

[0122] Combination Figures 1 to 5 It can be understood that the outgoing reflective module 130 reflects the image beam to the light-transmitting panel 140, and the light-transmitting panel transmits the image beam to the side away from the outgoing reflective module 130 so that it can be acquired by the user. The light-transmitting panel 140 can be a light-transmitting plate such as an acrylic plate or a glass plate.

[0123] For example, the intermediate reflective module 120 and the bracket 122 are connected by a snap-fit ​​connection, or the intermediate reflective module 120 and the bracket 122 are connected by a threaded connector.

[0124] Among them, see Figure 14 , Figure 15 , Figure 16 and Figure 17 The first image display unit 1111 and the second image display unit 1112 are located on the same display plane and connected to the first part 152. The first reflective part 1211 and the second reflective part 1212 are connected to the second part 153, and the first reflective part 1211 is located on the side of the second reflective part 1212 facing the image display panel 110. The first image display unit 1111 and the second image display unit 1112 are arranged along the Z direction.

[0125] Among them, combined Figure 3 , Figure 4 , Figure 18 and Figure 19The first image display unit 1111 and the second image display unit 1112 are located on the same display plane and connected to the first part 152. The first reflective part 1211 and the second reflective part 1212 are connected to the second part 153, and the first reflective part 1211 is located on the side of the second reflective part 1212 facing the image display panel 110. The first image display unit 1111 and the second image display unit 1112 are arranged along the X direction.

[0126] Combination Figure 5 , Figure 6 , Figure 20 and Figure 21 The first reflective part 1211 and the second reflective part 1212 are located on the same display plane and connected to the second part 153. The first image display part 1111 is located on the side of the second image display part 1112 facing the intermediate reflective module 120.

[0127] As an optional implementation, the intermediate reflective module 120 is rotatably disposed relative to the housing 150 about a first rotation axis; and / or, the outgoing reflective module 130 is rotatably disposed relative to the housing 150 about a second rotation axis. The first and second rotation axes are arranged parallel to each other. Thus, by rotating the intermediate reflective module 120, the refraction angle of the image beam passing through the intermediate reflective module 120 is adjusted, ensuring that the image beam can cover the intermediate reflective module 120, thereby improving the integrity of the image displayed by the display device 100. Simultaneously, by adjusting the rotation angles of the intermediate reflective module 120 and / or the outgoing reflective module 130, the clarity of the image ultimately displayed by the display device 100 is ensured.

[0128] In some embodiments, the intermediate reflective module 120 is connected to the second portion 153. When the intermediate reflective module 120 includes a plurality of reflective parts 121, each reflective part 121 can be connected to the second portion 153 by a pivot, or each reflective part 121 can be hinged to the second portion 153 to achieve a rotatable connection between the reflective parts 121 and the second portion 153.

[0129] Similarly, the emission reflector module 130 can be connected to the third part 154 via a rotating shaft, or the emission reflector module 130 can be hinged to the third part 154 to achieve a rotatable connection between the emission reflector module 130 and the third part 154.

[0130] It should be noted that the display device 100 can also ensure the clarity of the display device 100 by adjusting the curvature of the intermediate reflective module 120 and the spacing between the intermediate reflective module 120 and the image display panel 110, etc. This application embodiment does not make specific requirements in this regard.

[0131] Understandably, the rotation of the intermediate reflector module 120 and / or the angle of the output reflector module 130 can be adjusted manually or by electronic drive 160.

[0132] As an optional implementation, the display device 100 in this embodiment further includes a driving member 160. The driving member 160 is disposed on the housing 150 and drives at least one of the intermediate reflective module 120 and the outgoing reflective module 130. The driving member 160 is used to drive the corresponding intermediate reflective module 120 to rotate around a first rotation axis and to drive the corresponding outgoing reflective module 130 to rotate around a second rotation axis. Thus, by adjusting the rotation of the intermediate reflective module 120 and / or the outgoing reflective module 130 through the driving member 160, the rotation angle of the intermediate reflective module 120 and / or the outgoing reflective module 130 can be accurately and conveniently controlled, thereby quickly and accurately adjusting the field curvature, distortion, sharpness, and geometric fidelity of the image displayed on the display device 100, thereby improving the display performance of the display device 100. Simultaneously, it ensures that the image displayed by the display device 100 can be completely acquired by the user.

[0133] For example, in this embodiment, the drive component 160 can be a stepper motor, servo motor, or other structural component that can directly output circular motion. It is understood that the output end of the drive component 160 can be directly connected to the intermediate reflection module 120 to drive the intermediate reflection module 120 to rotate around the first rotation axis, and / or, the output end of the drive component 160 can be directly connected to the output reflection module 130 to drive the output reflection module 130 to rotate around the second rotation axis.

[0134] It should be noted that in this embodiment, the driving component 160 can drive the corresponding intermediate reflection module 120 and / or the outgoing reflection module 130 to rotate in one direction, or the driving component 160 can drive the corresponding intermediate reflection module 120 and / or the outgoing reflection module 130 to rotate in both directions.

[0135] In some embodiments, the drive unit 160 includes a motor and a transmission mechanism. The output end of the motor is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the intermediate reflection module 120 and / or the outgoing reflection module 130. It should be noted that in this embodiment, the motor can output linear motion, which is then converted into circular motion by the transmission mechanism, thereby achieving rotation of the corresponding intermediate reflection module 120 and the corresponding outgoing reflection module 130. Alternatively, the motor can output circular motion, which is then transmitted to the corresponding intermediate reflection module 120 and the corresponding outgoing reflection module 130 via the transmission mechanism, thereby achieving rotation of the corresponding intermediate reflection module 120 and the corresponding outgoing reflection module 130.

[0136] See Figure 22Optionally, the angle by which the outgoing reflective module 130 rotates around the second rotation axis is α, where α satisfies: -5°≤α≤5°.

[0137] For example, α in this embodiment can be -5°, -3°, 1°, 3°, 5°, etc. Any angle within the above range is acceptable, and this application does not require it.

[0138] It should be noted that when the emission reflection module 130 rotates clockwise, α is positive, and when the emission reflection module 130 rotates counterclockwise, α is negative. Alternatively, when the emission reflection module 130 rotates counterclockwise, α is positive, and when the emission reflection module 130 rotates clockwise, α is negative.

[0139] As an optional implementation, the display device 100 further includes a detection element disposed on the housing 150 and facing the outside of the housing 150. The detection element is used to acquire position information of the imaging element. The display device 100 also includes a controller electrically connected to the detection element and the drive element 160. The controller is used to control the drive element 160 to drive the corresponding intermediate reflection module 120 to rotate and drive the corresponding outgoing reflection module 130 to rotate, based on the position information of the imaging element acquired by the detection element.

[0140] Thus, through the cooperation between the detection component, the controller, and the drive component 160, the rotation of the corresponding intermediate reflection module 120 and the corresponding outgoing reflection module 130 can be adjusted in real time and accurately according to the position of the imaging component, thereby adjusting the angle, shape, and clarity of the image displayed by the display device 100 and improving the display performance of the display device 100.

[0141] For example, when the display device 100 is applied to a vehicle, the imaging element may be the eyes of the occupants or the glass of the vehicle, etc.

[0142] It should be noted that the detection device in this embodiment can be an image detection device, an ultrasonic detection device, etc.

[0143] Secondly, embodiments of this application provide a vehicle, including a cockpit and a display device 100. The display device 100 is disposed in the cockpit; the display device 100 is the same as the display device 100 provided in the first aspect.

[0144] The vehicle in this embodiment includes the display device 100 described in the previous embodiment. This display device 100 can reduce visual fatigue, dizziness and other discomforts of passengers, thereby improving the user experience.

[0145] In some embodiments, the means of transportation can be known means of transportation such as automobiles, airplanes, ships, and rockets. The automobile can be an electric vehicle, a gasoline-powered vehicle, or a hybrid vehicle, such as a pure electric vehicle, a range-extended electric vehicle, a hybrid electric vehicle, a fuel cell vehicle, or a new energy vehicle; this application does not specifically limit the type of vehicle.

[0146] When the vehicle is a car, the display device 100 can be installed on the dashboard in the cabin, or on the headrest of the seat in the cabin; this embodiment does not require it to be installed in this way. The first image display unit 1111 can display vehicle speed, time, notifications, simplified menus, etc., while the second image display unit 1112 can display video, conference interfaces, etc. In this way, the user's visual focus changes less and faster when switching between the first focal plane 181 and the second focal plane 182, making the interaction more natural and efficient. This reduces the visual cognitive load required to find information on a single focal plane, thereby indirectly improving driving safety.

[0147] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not all embodiments necessarily include that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when describing a specific feature, structure, or characteristic in conjunction with embodiments, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0148] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "one" can be understood to convey either singular or plural usage.

[0149] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0150] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display device, characterized in that, include: An image display panel (110) is used to emit an image beam; Intermediate reflection module (120); Emission reflection module (130); The image beam emitted by the image display panel (110) is emitted to the outside of the display device (100) via the intermediate reflection module (120) and the outgoing reflection module (130); wherein at least two image beams reflected by the intermediate reflection module (120) have unequal optical path lengths.

2. The display device according to claim 1, characterized in that, The image display panel (110) includes a plurality of image display units (111); the intermediate reflection module (120) includes a plurality of reflection units (121), and the reflection units (121) and the image display units (111) are arranged in a one-to-one correspondence; the spacing between at least two of the image display units (111) and the corresponding reflection units (121) is different.

3. The display device according to claim 2, characterized in that, The plurality of image display units (111) include a first image display unit (1111) and a second image display unit (1112); The plurality of reflective portions (121) include a first reflective portion (1211) and a second reflective portion (1212), wherein the first reflective portion (1211) and the first image display portion (1111) are correspondingly disposed, and the second reflective portion (1212) and the second image display portion (1112) are correspondingly disposed; Along the optical path direction of the display device (100), there is a first gap between the first reflective part (1211) and the first image display part (1111), and a second gap between the second reflective part (1212) and the second image display part (1112), wherein the first gap is smaller than the second gap.

4. The display device according to claim 3, characterized in that, The first image display unit (1111) and the second image display unit (1112) are located on the same display plane; along the optical path direction of the display device (100), the first reflective part (1211) and the second reflective part (1212) are staggered so that the first spacing is smaller than the second spacing.

5. The display device according to claim 3, characterized in that, The first reflective part (1211) and the second reflective part (1212) are located on the same reflective plane; along the optical path direction of the display device (100), the first image display part (1111) and the second image display part (1112) are staggered so that the first spacing is smaller than the second spacing.

6. The display device according to any one of claims 1-5, characterized in that, The display device (100) further includes a housing (150) and a light-transmitting panel (140), wherein the image display panel (110), the intermediate reflection module (120), and the outgoing reflection module (130) are all disposed within the housing (150); the housing (150) has a mounting opening (151), and the light-transmitting panel (140) is disposed within the housing (150) and closes the mounting opening (151); The intermediate reflective module (120) is rotatably disposed relative to the housing (150) about a first rotation axis; and / or, The emission reflection module (130) is rotatably disposed relative to the housing (150) about a second rotation axis; The first rotation axis and the second rotation axis are arranged in parallel.

7. The display device according to claim 6, characterized in that, The display device (100) further includes a driving member (160), which is disposed on the housing (150) and drives at least one of the intermediate reflection module (120) and the outgoing reflection module (130); The driving element (160) is used to drive the corresponding intermediate reflection module (120) to rotate around the first rotation axis, and to drive the corresponding outgoing reflection module (130) to rotate around the second rotation axis.

8. The display device according to claim 6, characterized in that, The angle of rotation of the outgoing reflective module (130) around the second rotation axis is α, and α satisfies: -5°≤α≤5°.

9. The display device according to claim 7, characterized in that, The display device (100) further includes a detection element disposed on the housing (150) and facing the outside of the housing (150), the detection element being used to acquire position information of the imaging element; The display device (100) further includes a controller, which is electrically connected to the detection element and the driving element (160); the controller is used to control the driving element (160) to drive the corresponding intermediate reflection module (120) to rotate and drive the corresponding emission reflection module (130) to rotate according to the position information of the imaging element obtained by the detection element.

10. A means of transportation, characterized in that, include: cockpit; A display device (100) is disposed in the cockpit; the display device (100) is the display device (100) according to any one of claims 1-9.

Images