Automobile three-dimensional display module

Abstract

The invention discloses an automobile three-dimensional display module. The automobile three-dimensional display module comprises a light-emitting body and a light-reflecting body, the luminous body is used for emitting light; the light emitting direction of the light emitting body faces the light reflecting body, and the light reflecting body reflects the light emitted by the light emitting body to the human eye observation direction. The light reflecting body comprises a plurality of optical media, the optical media are sequentially arranged in the light emitting direction of the light emitting body, the optical media are sequentially arranged in an attached mode, and the refractive indexes of every two adjacent optical media are different. The device has the advantages of being small in overall structural size and low in manufacturing precision requirement.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile lighting, and in particular relates to an automobile stereoscopic display module. Background Art

[0002] In the field of automotive lighting, lamps must not only be functional, but also aesthetically pleasing and artistic. As new display technologies become increasingly mature, the design of car lights is becoming more flexible. At present, car lights are visually flat and lack a sense of three-dimensionality. In the prior art, in order to make car signal lights present a multi-layer three-dimensional effect, the light is mainly reflected and transmitted multiple times through semi-transparent and semi-reflective mirrors and reflectors, or the light-emitting pattern is directly set to multiple layers to achieve a three-dimensional effect. However, in the above two implementation methods, the former has higher requirements on the relative position and surface accuracy of the semi-transparent and semi-reflective mirrors and reflectors; the latter has larger requirements on the spatial size of the car lights. In order to solve the above problems, a car stereo display module is proposed. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, the present invention proposes a car stereo display module, which has the advantages of small overall structure volume and low manufacturing precision requirements.

[0005] According to an embodiment of the present invention, the automotive stereoscopic display module includes: a light emitting body and a reflector; the light emitting body is used to emit light; the light emitting direction of the light emitting body faces the reflector, and the reflector reflects the light emitted by the light emitting body to the direction of human eye observation; the reflector includes a plurality of optical media, the plurality of optical media are arranged in sequence along the light emitting direction of the light emitting body, the plurality of optical media are arranged in sequence, and the refractive indexes of two adjacent optical media are different.

[0006] According to an embodiment of the present invention, the refractive index of the optical medium is between 1-2.

[0007] According to an embodiment of the present invention, the optical medium is glass or transparent plastic or air.

[0008] According to one embodiment of the present invention, the luminous body is a light emitting form of LED direct scattering material.

[0009] According to an embodiment of the present invention, the plurality of optical media are respectively a first medium, a second medium and a third medium, and the second medium is air.

[0010] According to an embodiment of the present invention, the second medium is located between the first medium and the third medium.

[0011] According to an embodiment of the present invention, the thicknesses of the first medium, the second medium and the third medium are different.

[0012] According to an embodiment of the present invention, the surface of the reflector is a plane.

[0013] According to an embodiment of the present invention, the surface of the reflector is a curved surface.

[0014] According to an embodiment of the present invention, the plurality of optical media are bonded together using colloid.

[0015] The beneficial effects of the present invention are that the present invention adopts a plurality of optical media with different refractive indices to form a reflector to complete the light and dark setting and realize a three-dimensional visual effect; by adopting a plurality of optical media with different refractive indices, the light emitting body only adopts a mirror shape of a desired visible pattern to realize a three-dimensional visual effect, thereby greatly reducing the size of the automobile three-dimensional display module; and the optical medium does not need to prepare a semi-transparent and semi-reflective film, thereby reducing the demand for process accuracy and saving production costs.

[0016] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practicing the present invention.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the optical path of the overall structure of the present invention from a side view;

[0021] Figure 3 It is a schematic diagram of the optical path of the reflector of the present invention;

[0022] Reference numerals:

[0023] 10. Luminous body; 20. Reflective body; 21. First medium; 211. First surface; 22. Second medium; 221. Second surface; 23. Third medium; 231. Third surface; 311. First pattern; 321. Second pattern; 331. Third pattern. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following describes in detail the automotive stereoscopic display module according to an embodiment of the present invention with reference to the accompanying drawings.

[0028] like Figure 1 As shown, the automotive stereoscopic display module according to an embodiment of the present invention includes: a light emitting body 10 and a reflector 20; the light emitting body 10 is used to emit light; the light emitting direction of the light emitting body 10 faces the reflector 20, and the reflector 20 reflects the light emitted by the light emitting body 10 to the direction of human eye observation; the reflector 20 includes a plurality of optical media, and the plurality of optical media are arranged in sequence along the light emitting direction of the light emitting body 10, and the plurality of optical media are arranged in sequence, and the refractive indexes of two adjacent optical media are different.

[0029] In this embodiment, the shape of the light emitting body 10 is a mirror image of the desired visible pattern. When the light emitted by the light emitting body 10 passes through an optical medium, part of the light is reflected in the direction of human eye observation, and the other part of the light contacts the second optical medium after passing through the optical medium. At this time, part of the light is reflected in the direction of human eye observation, and the other part of the light contacts the third optical medium... Since the refractive indices of two adjacent optical media are different, the greater the refractive index difference between the two adjacent optical media, the brighter the pattern formed by the reflection of the fitting surface of the two is. Therefore, by setting optical media with different refractive indices, the light is set to light and dark, and a three-dimensional visual effect is achieved; in addition, since a plurality of optical media with different refractive indices are set, a three-dimensional visual effect can be achieved by only using a light emitting body 10 with a mirror image shape of the desired visible pattern, so the volume of the automotive three-dimensional display module is greatly reduced; and the optical medium does not need to prepare a semi-transparent and semi-reflective film, thereby reducing the requirements for process accuracy and saving production costs.

[0030] The refractive index of the optical medium is between 1 and 2, and the optical medium is glass, transparent plastic or air.

[0031] When the second medium 22 is air, the second medium 22 may be located between the first medium 21 and the third medium 23, or a plurality of first mediums 21, second mediums 22 and third mediums 23 may be arranged irregularly according to the requirements of the refractive index.

[0032] In this embodiment, when the optical medium is air, the refractive index is 1, that is, among multiple optical media, two optical media adjacent to air are not in contact with each other, and a multi-layer three-dimensional visual effect can also be achieved.

[0033] The thicknesses of the first medium 21 , the second medium 22 and the third medium 23 can be set to be the same or different according to the refraction requirements, and the specific thicknesses can be set according to the required distance between the patterns of each layer.

[0034] The luminous body 10 is a light emitting form of LED direct scattering material.

[0035] The surface of the reflector 20 may be a flat surface or a curved surface, which may be specifically set according to the size of the desired pattern. The surface of the reflector 20 is the side facing the light emitting body 10 .

[0036] Multiple optical media are connected by colloid bonding or other methods. The colloid bonding method avoids the connection of components and saves the weight of the components and the area they occupy.

[0037] The refractive index, thickness, and angle between the light emitter 10 and the reflector 20 of the automobile stereoscopic display module are set as follows:

[0038] like Figure 1-3As shown, the plurality of optical media are respectively a first medium 21, a second medium 22 and a third medium 23...Nth medium N; wherein the side of the first medium 21 facing the light emitter 10 is a first surface 211, the side of the second medium 22 facing the light emitter 10 is a second surface 221, the side of the third medium 23 facing the light emitter 10 is a third surface 231...the side of the Nth medium 2N facing the light emitter 10 is an Nth surface 2N1....

[0039] In this embodiment, after the light emitted by the light emitting body 10 is incident on the first surface 211, a part of the light is reflected in the direction of human eye observation to form a first pattern 311, another part of the light is refracted onto the second surface 221, and a part of the light passing through the second surface 221 is reflected in the direction of human eye observation to form a second pattern 321, another part of the light is refracted onto the third surface 231, and a part of the light passing through the third surface 231 is reflected in the direction of human eye observation to form a third pattern 331... and so on;

[0040] The light emitted by the light emitting body 10 is incident on the first surface 211. 1 point, which is θ with the normal line of the first surface 211 0 Angle, the light emitted by the light source 10 is incident on the air, and its refractive index n 0 can be 1, and the refractive index of the first medium 21 is n 1 According to Snell's law, the refraction angle is:

[0041]

[0042] The light refracted to the second surface 221 2 The angle formed by the point and the normal line of the second surface 221 is θ 1 , part of the light is reflected at an angle θ 1 b reflected to the first surface 211 1 The thickness of the first medium 21 is h 1 , then point a 1 and point b 1 Distance:

[0043] a 1 b 1 =2h 1 tanθ 1

[0044] From the geometric relationship, the distance between the first pattern 311 and the second pattern 321 can be obtained:

[0045] L 1 =a 1 b 1 ·cosθ 0 =2h 1tanθ 1 ·cosθ 0

[0046] The light is refracted by the first medium 21 to the second surface 221. 2 After the point, part of the light is refracted into the second medium 22, the refractive index of the second medium 22 is n 2 , its refraction angle:

[0047]

[0048] The light refracted to the third surface 231 3 point, and the angle formed by the normal line of the third surface 231 is equal to θ 2 , part of the light is reflected at an angle θ 2 b emitted to the second surface 221 2 The thickness of the second medium 22 is h 2 , then point a 2 and point b 2 Distance:

[0049] a 2 b 2 =2h 2 tanθ 2

[0050] And point b 1 and point c 1 The distance b 1 c 1 Equal to point a 2 and point b 2 The distance a 2 b 2 , the distance between the second pattern 321 and the third pattern 331 can be obtained from the geometric relationship:

[0051] L 2 =a 2 b 2 ·cosθ 0 =2h 2 tanhθ 2 ·cosθ 0

[0052] The patterns of other layers can be obtained in the same way.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A car stereo display module, characterized in that: include: A light emitting body (10), wherein the light emitting body (10) is used to emit light; A reflector (20), wherein the light emitting direction of the light emitting body (10) faces the reflector (20), and the reflector (20) reflects the light emitted by the light emitting body (10) to a direction for human eyes to observe; The reflector (20) comprises a plurality of optical media, the plurality of optical media are arranged in sequence along the light emission direction of the light emitting body (10), the plurality of optical media are arranged in sequence in close contact, and the refractive indexes of two adjacent optical media are different.

2. The automotive stereoscopic display module according to claim 1, characterized in that: The refractive index of the optical medium is between 1 and 2.

3. The automotive stereoscopic display module according to claim 2, characterized in that: The optical medium is glass or transparent plastic or air.

4. The automotive stereoscopic display module according to claim 3, characterized in that: The luminous body (10) is a light emitting form of LED direct scattering material.

5. The automobile stereoscopic display module according to claim 4, characterized in that: The plurality of optical media are respectively a first medium (21), a second medium (22) and a third medium (23), and the second medium (22) is air.

6. The automobile stereoscopic display module according to claim 5, characterized in that: The second medium (22) is located between the first medium (21) and the third medium (23).

7. The automobile stereoscopic display module according to claim 6, characterized in that: The first medium (21), the second medium (22) and the third medium (23) have different thicknesses.

8. The automobile stereoscopic display module according to claim 1, characterized in that: The surface of the reflector (20) is a plane.

9. The automobile stereoscopic display module according to claim 1, characterized in that: The surface of the reflector (20) is a curved surface.

10. The automobile stereoscopic display module according to claim 1, characterized in that: The plurality of optical media are bonded by colloid.

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