Display and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses a displayer and a vehicle, and the displayer comprises a bottom plate, a light condensation module and a diffusion module. A plurality of light-emitting parts used for providing light rays are arranged on the bottom plate at equal intervals, and the light condensation module is installed on the bottom plate and used for focusing and collimating the light rays emitted by the light-emitting parts so as to improve the concentration ratio of the light rays and improve the light ray utilization rate. The diffusion module comprises a bridge-type lens and a scattering sheet which are recessed towards one side of the condensation module, and the bridge-type lens is used for receiving light rays emitted by the condensation module and diffusing the light rays, so that stray light reaching the human eyes is reduced, and the brightness of the light rays reaching the human eyes can be improved; and the scattered light is further brightened by arranging the scattering sheet, so that the effects of improving the light utilization rate and improving the brightness uniformity are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle technology, specifically relating to a display and a vehicle. Background Technology

[0002] In the field of vehicle technology, displays are used to show important driving information such as speed, navigation, steering, and fuel consumption. This allows drivers to focus on driving without having to look down at the instrument panel, effectively ensuring safe driving and improving the driving experience. However, existing displays suffer from poor structural layout and low light utilization. Utility Model Content

[0003] The purpose of this invention is to provide a display and a vehicle that solve the technical problem of low light utilization in existing displays.

[0004] To achieve the above objectives, this utility model provides a display, the display comprising:

[0005] The base plate has multiple light-emitting components arranged at equal intervals to provide light;

[0006] The focusing module, mounted on the base plate, is used to focus and collimate the light emitted by the light-emitting element;

[0007] The diffusion module includes a bridge-shaped lens and a diffuser sheet recessed towards the side facing the focusing module. The bridge-shaped lens is used to receive and diffuse the light emitted by the focusing module, and the diffuser sheet brightens the light diffused from the bridge-shaped lens.

[0008] In an embodiment of this utility model, the bridge-type lens includes a lens body and a mounting post disposed on one side of the lens body. The lens body forms a concave cavity, and the light-gathering module is housed in the concave cavity. The mounting post is detachably connected to the base plate.

[0009] In an embodiment of this utility model, the focusing module includes a focusing lens, a grating, and a collimating lens stacked in sequence. The focusing lens has multiple raised surfaces protruding from the side opposite to the base plate. The multiple raised surfaces are arranged in a one-to-one correspondence with the light-emitting element. The focusing lens is detachably connected to the base plate.

[0010] In an embodiment of this utility model, a plurality of grating grooves are spaced apart on the grating, and the plurality of grating grooves correspond one-to-one with a plurality of raised surfaces. The groove walls of the grating grooves are gradually widened from the direction away from the condenser lens.

[0011] In embodiments of this invention, the grating groove is frustum-shaped or inverted pyramid-shaped.

[0012] In an embodiment of this invention, a reflective layer is coated on the inner wall of the grating groove.

[0013] In an embodiment of this utility model, a plurality of protrusions are arranged at equal intervals on the collimating lens. The protrusions are configured as spherical surfaces or quadratic surfaces and protrude toward the bridge-type lens.

[0014] In an embodiment of this utility model, the display also includes a light box with open ends and an internal storage space for accommodating a light-gathering module and a light-diffusing module. The bottom plate and the diffuser sheet respectively close the open ends.

[0015] In an embodiment of this utility model, the plane containing the base plate is arranged at an angle relative to the plane containing the scattering sheet.

[0016] In an embodiment of this utility model, a vehicle is proposed, including the display as described above.

[0017] Through the above technical solutions, the display and vehicle provided by the embodiments of this utility model have the following beneficial effects:

[0018] The display in this embodiment includes a base plate, a focusing module, and a diffusion module. Multiple light-emitting elements for providing light are arranged at equal intervals on the base plate. The focusing module is mounted on the base plate and is used to focus and collimate the light emitted by the light-emitting elements to improve light concentration and light utilization. The diffusion module includes a bridge-shaped lens and a diffuser sheet recessed towards the focusing module. The bridge-shaped lens receives and diffuses the light emitted by the focusing module, thereby reducing stray light reaching the human eye and ensuring that the brightness of the light reaching the human eye is improved. The diffuser sheet further enhances the brightness of the diffused light, thus improving light utilization and increasing brightness uniformity.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the display according to this utility model;

[0022] Figure 2 This is a schematic diagram of the light-emitting element in this utility model;

[0023] Figure 3The diagram shows the light intensity effect of the light-emitting element in this utility model.

[0024] Figure 4 This is a schematic diagram of light divergence provided with a focusing lens according to the present invention;

[0025] Figure 5 This is a diagram illustrating the light intensity effect of light passing through a condenser lens according to this invention.

[0026] Figure 6 This is a schematic diagram of light divergence with a grating provided in this utility model;

[0027] Figure 7 This is a diagram illustrating the light intensity effect of light passing through the grating according to this invention.

[0028] Figure 8 This is a schematic diagram of light divergence provided with a collimating lens according to the present invention;

[0029] Figure 9 This is a diagram illustrating the light intensity effect of light passing through the collimating lens according to this invention.

[0030] Figure 10 This is a schematic diagram showing the brightness of the light emitted through the diffuser in this invention.

[0031] Explanation of reference numerals in the attached figures

[0032] 1. Base plate 23. Collimating lens

[0033] 11 Light-emitting components 3 Diffuser modules

[0034] 2 Concentrating Modules 31 Bridge Lenses

[0035] 21 Condensing lens 32 Diffusing sheet

[0036] 22 grating 4 light box

[0037] 221 grating slots Detailed Implementation

[0038] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0039] The display and vehicle according to the present invention are described below with reference to the accompanying drawings.

[0040] like Figure 1As shown, in this embodiment, a display is proposed, comprising a base plate 1, a light-concentrating module 2, and a diffusion module 3. Multiple light-emitting elements 11 for providing light are arranged at equal intervals on the base plate 1. The light-concentrating module 2 is mounted on the base plate 1 and is used to focus and collimate the light emitted by the light-emitting elements 11. The diffusion module 3 includes a bridge-shaped lens 31 recessed towards the side facing the light-concentrating module 2 and a diffuser 32. The bridge-shaped lens 31 receives and diffuses the light emitted through the light-concentrating module 2, and the diffuser 32 brightens the light diffused from the bridge-shaped lens 31. In this embodiment, two rows of light-emitting elements 11 are arranged along the width direction on the base plate 1, and each row contains six light-emitting elements 11 spaced apart along the length direction of the base plate 1, ensuring that the display has good basic light diffusion. The number of light-emitting elements 11 can be adjusted according to actual needs.

[0041] Multiple light-emitting elements 11 are arranged at equal intervals on the base plate 1 to provide light. The focusing module 2 is mounted on the base plate 1 and is used to focus and collimate the light emitted by the light-emitting elements 11 to improve the concentration of light and increase the light utilization rate. The diffusion module 3 includes a bridge-shaped lens 31 and a diffuser 32 recessed towards the side of the focusing module 2. The bridge-shaped lens 31 is used to receive the light emitted by the focusing module 2 and diffuse it, thereby reducing stray light reaching the human eye and ensuring that the brightness of the light reaching the human eye can be improved. The diffuser 32 further enhances the brightness of the diffused light, thereby improving the light utilization rate and increasing the brightness uniformity.

[0042] like Figure 1 As shown, the bridge-type lens 31 includes a lens body and mounting posts disposed on one side of the lens body, with the lens body forming a concave cavity. In this embodiment, four mounting posts are connected to the side of the lens body facing the base plate 1. The four mounting posts are arranged circumferentially along the bottom end of the lens body, providing good support stability. The four mounting posts also serve to limit and accommodate the focusing module 2 within the concave cavity. The detachable connection between the mounting posts and the base plate 1 further limits and fixes the focusing module 2.

[0043] It should be noted that the side wall of the light box 4 is also provided with limiting protrusions. The side walls of the bridge lens 31, collimating lens 23, grating 22, condenser lens 21, and base plate 1 are all provided with positioning grooves for the limiting protrusions to be inserted into. During the assembly of the display, the positioning grooves play an auxiliary positioning role, allowing the limiting protrusions to pass sequentially through the positioning grooves of the bridge lens 31, collimating lens 23, grating 22, condenser lens 21, and base plate 1, and then the light box 4 is detachably connected to the base plate 1 by bolts. The cooperation between the positioning grooves and the limiting protrusions makes the assembly of various components on the display easier.

[0044] like Figure 1 As shown, in this embodiment, the focusing module 2 includes a focusing lens 21, a grating 22, and a collimating lens 23 stacked sequentially. The focusing lens 21 has multiple protruding surfaces facing away from the base plate 1. These protruding surfaces correspond one-to-one with the light-emitting element 11, ensuring concentrated light path and thus ensuring sufficient light reaches the driver. The focusing lens 21 is detachably connected to the base plate 1. Additionally, multiple positioning elements are arranged on the side of the focusing lens 21 facing the base plate 1. Multiple positioning holes are provided on the base plate. When the focusing lens 21 is detachably connected to the base plate 1, the multiple positioning elements correspond one-to-one with the multiple positioning holes, and the positioning elements are inserted into the positioning holes to limit and fix the position. The focusing lens 21 and the base plate 1 can be detachably connected via threaded connections.

[0045] like Figure 1 As shown, in this embodiment, a plurality of grating grooves 221 are spaced apart on the grating 22, and the plurality of grating grooves 221 correspond one-to-one with a plurality of raised surfaces. The groove walls of the grating grooves 221 are gradually widened from the direction away from the condenser lens 21 of the grating 22, which can effectively intercept the laterally divergent light, so that the light passing through the grating 22 is initially collimated, thereby improving the concentration of the light.

[0046] In this embodiment, the grating groove 221 is either frustum-shaped or inverted pyramid-shaped. Both technical solutions can effectively concentrate light rays and block stray light at large angles. Figure 1 As shown, this embodiment uses an inverted pyramid-shaped grating groove 221, which can effectively concentrate light rays. A frustum-shaped grating groove 221 is even better at concentrating light rays than the inverted pyramid-shaped grating groove 221. The structure of the grating groove 221 can be adjusted according to actual needs.

[0047] In this embodiment, a reflective layer is also coated on the inner wall of the grating groove 221. Preferably, the reflective layer can be made of a material such as polycarbonate composite plastic resin ABS-GF10, or other high-reflectivity materials can be used, as long as the light passing through the grating groove 221 is reflected and converged by the reflective layer. The reflective layer further converges the divergence angle of the light, preventing large-angle stray light from appearing.

[0048] In this embodiment, the collimating lens 23 has multiple protrusions arranged at equal intervals. These protrusions are either spherical or quadratic surfaces and protrude towards the bridge lens 31. Using spherical surfaces for the protrusions on the collimating lens 23 maintains good light collimation while facilitating its manufacturing and reducing production costs. When the protrusions on the collimating lens 23 are quadratic surfaces, the light collimation effect is better than that of spherical surfaces, resulting in a better overall display effect. The protrusion configuration can be selected according to actual needs. Furthermore, the protruding surface of the condenser lens 21 can also be a spherical or quadratic surface.

[0049] In this embodiment, the plane of the base plate 1 and the plane of the diffuser 32 are arranged at an angle relative to each other, which can effectively match the secondary imaging light path of the display, so that the light can clearly reach the driver and facilitate the driver's observation. The relative angle between the base plate 1 and the diffuser 32 can be adjusted according to actual needs. The top of the light box 4 forms a platform for mounting the diffuser 32. The diffuser 32 is detachably mounted on the platform and is arranged corresponding to the open top of the light box 4. The diffuser 32 can be easily replaced with diffusers of different specifications as needed.

[0050] Specifically, we will analyze light divergence by taking the assembly of the various components of a display from bottom to top as an example:

[0051] Preferably, the light-emitting element 11 in this embodiment is an LED lamp with a Lambertian light source, such as... Figure 2 The LED shown has a beam angle of ±90°. The luminous intensity distribution of the Lambertian light source can be expressed by the following formula:

[0052] I = I0 * cosθ

[0053] Where I0 is the light intensity when the light is incident perpendicularly on the surface of the light source, θ is the angle between the light ray and the normal to the surface of the light source, and I is the light intensity when the angle is θ.

[0054] From the above, we can derive the light intensity I0, such as... Figure 3 As shown, the divergence angle is 120°.

[0055] like Figure 4 As shown, a condenser lens 21 is added above the base plate 1. When the light passes through the condenser lens 21, the light angle converges to ±30°.

[0056] And the light intensity distribution after the light passes through the condenser lens 21 can be obtained, such as Figure 5 As shown, the divergence angle is 60°.

[0057] Furthermore, such as Figure 6 and Figure 7As shown, a grating 22 is added above the focusing lens 21. When light passes through the grating groove 221, the divergence angle of the light initially converges and focuses, which can prevent large-angle stray light and control the optical path thickness to less than 20mm, thereby effectively reducing the overall space occupied by the display.

[0058] like Figure 8 and Figure 9 As shown, a collimating lens 23 is then added above the grating 22 to efficiently collimate the light.

[0059] According to the following formula:

[0060] 1 / F = (n-1)(1 / R1 + 1 / R2)

[0061] 1 / f = 1 / u + 1 / v

[0062] Where F is the focal length, n is the refractive index of the collimating lens 23 material, R1 is the radius of curvature of the surface of the collimating lens 23, and R2 is the radius of curvature of the other side of the collimating lens 23. f is the focal length, u is the object distance, and v is the phase distance.

[0063] We can obtain the curvature R = -0.142705; the quadratic surface coefficient K = -1.4912.

[0064] Therefore, by setting the collimating lens 23, the divergence angle of the light rays is reduced to less than 1°, further improving the collimation effect. The radius of curvature R, the conic coefficient K, and the higher-order aspherical coefficients can be arbitrary values.

[0065] In addition, the bridge lens 31 is placed above the collimating lens 23. When the light passes through the bridge lens 31, the light diverges at a certain angle, which can better match the imaging light path of the display. This allows the collimated and uniform parallel light to have a certain divergence angle. The divergence angles in the horizontal and vertical directions are different. The four sides of the bridge lens 31 scatter the light to reduce stray light reaching the human eye, thereby reducing the diffusion angle required for the subsequent placement of the diffuser sheet. It can also increase the brightness and brightness uniformity of the display.

[0066] In this embodiment, the display also includes a light box 4, which has openings at both ends and forms an internal space to accommodate the focusing module 2 and the diffusion module 3. The base plate 1 and the diffuser 32 respectively close the openings at both ends. The diffuser 32 is positioned at the top of the light box 4 and employs asymmetric Gaussian scattering. Preferably, this embodiment uses a 20°×10° diffuser 32, meaning that after light passes through the diffuser 32, the light is dispersed at 20° along the width direction and 10° along the length direction. The function of the diffuser 32 is to make the virtual image visible throughout the entire eye box with minimal brightness difference. Figure 10 As shown, the brightness uniformity of the display in this embodiment is >80%, far exceeding the average level of 70% for displays on the market. This demonstrates the high light utilization rate of the display screen in this embodiment.

[0067] In this embodiment, a vehicle is proposed, including the display as described above. Since the vehicle employs all embodiments of the display, it also possesses all the beneficial effects brought by the display, which will not be elaborated upon here. Specifically, this embodiment takes the application of the display to a truck as an example. In the prior art, truck windshields generally have large angles, low polarized light reflectivity, and low light efficiency, resulting in high energy consumption of the display. However, by applying the display of this embodiment, the technical problems existing in the prior art can be effectively solved.

[0068] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A display, characterized in that, The display includes: The base plate (1) is provided with multiple light-emitting elements (11) arranged at equal intervals to provide light. A focusing module (2) is installed on the base plate (1). The focusing module (2) is used to focus and collimate the light emitted by the light-emitting element (11). The diffusion module (3) includes a bridge-shaped lens (31) recessed toward the light-concentrating module (2) and a diffuser (32). The bridge-shaped lens (31) is used to receive and diffuse the light emitted by the light-concentrating module (2). The diffuser (32) brightens the light diffused from the bridge-shaped lens (31).

2. The display according to claim 1, characterized in that, The bridge-type lens (31) includes a lens body and a mounting post disposed on one side of the lens body. The lens body forms a concave cavity, and the light-gathering module (2) is housed in the concave cavity. The mounting post is detachably connected to the base plate (1).

3. The display according to claim 1, characterized in that, The focusing module (2) includes a focusing lens (21), a grating (22) and a collimating lens (23) stacked in sequence. The focusing lens (21) has a plurality of raised surfaces protruding from the side opposite to the base plate (1). The plurality of raised surfaces are arranged in a one-to-one correspondence with the light-emitting element (11). The focusing lens (21) is detachably connected to the base plate (1).

4. The display according to claim 3, characterized in that, The grating (22) is provided with a plurality of grating grooves (221) spaced apart, and the plurality of grating grooves (221) correspond one-to-one with the plurality of protruding surfaces. The groove wall of the grating groove (221) is gradually widened from the direction of the grating (22) away from the condenser lens (21).

5. The display according to claim 4, characterized in that, The grating groove (221) is in the shape of a frustum or an inverted pyramid.

6. The display according to claim 4, characterized in that, The inner wall of the grating groove (221) is coated with a reflective layer.

7. The display according to claim 3, characterized in that, The collimating lens (23) has multiple protrusions arranged at equal intervals. The protrusions are configured as spherical surfaces or quadratic surfaces and protrude toward the bridge lens (31).

8. The display according to any one of claims 1 to 7, characterized in that, The display also includes a light box (4), which has open ends and an internal space for accommodating the light-gathering module (2) and the light-diffusing module (3). The base plate (1) and the diffuser (32) respectively close the open ends.

9. The display according to any one of claims 1 to 7, characterized in that, The plane where the base plate (1) is located is arranged at an angle relative to the plane where the scattering sheet (32) is located.

10. A vehicle, characterized in that, The display comprising any one of claims 1 to 9.

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